- P. K. Singh
- K. K. Singh
- L. S. Rathore
- A. K. Baxla
- S. C. Bhan
- Akhilesh Gupta
- G. B. Gohain
- R. S. Singh
- R. K. Mall
- S. SriramSunther
- S. Ramalakshmi
- G. Thilip Kumar
- T. Abdul Razak
- B. Gayathri Devi
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- Gladys Sheba Chandrakumari
- S. Hosimin Thilagar
- M. Kanthababu
- V. K. Suri
- A. Anbarasa Pandian
- D. Kesavaraja
- R. S. Rajesh
- D. Sasireka
- S. Padmapriya
- V. A. Sathiyamurthy
- K. Ramachandra
- D. Jeyabharathi
- N. Karpagavalli
- P. Revathi
- Priyamvad Srivastav
- R. Anandhan
- V. Kavitha
- S. Jayakumar
- V. Ravi
- R. Babu
- R. Anandha
- N. Chattopadhyay
- A. K. Sahai
- P. Guhathakurta
- S. Dutta
- A. K. Srivastava
- S. D. Attri
- K. Malathi
- Swati Chandras
- Current Science
- Wireless Communication
- Networking and Communication Engineering
- Digital Image Processing
- Data Mining and Knowledge Engineering
- Manufacturing Technology Today
- Indian Journal of Science and Technology
- ICTACT Journal on Image and Video Processing
- Journal of Horticultural Sciences
- The Journal of the Indian Mathematical Society
- International Journal of Advanced Networking and Applications
- Journal of the Ramanujan Mathematical Society
- Indian Journal of Education and Information Management
- Indian Journal of Innovations and Developments
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Balasubramanian, R.
- Rice (Oryza sativa L.) Yield Gap Using the CERSE-Rice Model of Climate Variability for Different Agroclimatic Zones of India
Authors
1 Agromet Service Cell, India Meteorological Department, Lodhi Road, New Delhi 110 003, IN
2 Deparment of Science and Technology, New Delhi 110 016, IN
3 Agrimet Pune, New Delhi 411 005, IN
4 Banaras Hindu University, Varanasi 221 005, IN
Source
Current Science, Vol 110, No 3 (2016), Pagination: 405-413Abstract
The CERES (crop estimation through resource and Environment Synthesis)-rice model incorporated in DSSAT version 4.5 was calibrated for genetic coefficients of rice cultivars by conducting field experiments during the kharif season at Jorhat, Kalyani, Ranchi and Bhagalpur, the results of which were used to estimate the gap in rice yield. The trend of potential yield was found to be positive and with a rate of change of 26, 36.9, 57.6 and 3.7 kg ha-1 year-1 at Jorhat, Kalyani, Ranchi and Bhagalpur districts respectively. Delayed sowing in these districts resulted in a decrease in rice yield to the tune of 35.3, 1.9, 48.6 and 17.1 kg ha-1 day-1 respectively. Finding reveals that DSSAT crop simulation model is an effective tool for decision support system. Estimation of yield gap based on the past crop data and subsequent adjustment of appropriate sowing window may help to obtain the potential yields.Keywords
Agroclimatic Zones, Genetic Coefficients, Rice Model, Yield Gap.References
- Patel, H. R. and Shekh, A. M., Yield gap and trend analysis of wheat using CERES-wheat model in three districts of Gujarat state. J. Agrometeorol., 2006, 8(1), 28–39.
- Patel, V. J., Patel, H. R. and Pandey, V., Estimation of wheat yield gap in Anand and Panchmahal districts using CERES-wheat model. J. Agrometeorology. (Spec. Issue-part-2), 2008, 393–397.
- Bell, M. A. and Fischer, R. A., Using yield predication to assess yield grains: a case study for wheat. Field Crops Res., 1994, 36, 161–166.
- Aggarwal, P. K. and Kalra, N., Analysing the limitation set by climatic factors, genotype and water and nitrogen availability on productivity of wheat II. Climatic potential yield and management strategies. Field Crops Res., 1994, 38, 93–103.
- Aggarwal, P. K., Hebbar, K. B., Venugopalan, M. V., Rani, S., Bala, A., Biswal, A. and Wani, S. P., Quantification of yield gaps in rain-fed rice, wheat, cotton and mustard in India. Global theme on agro ecosystems, report no. 43 and page 36, ICRISAT, Hyderabad, 2008.
- Pathak, H. et al., Trend of climatic potential and on-farm yield of rice and wheat in the Indo-Gangetic Plains. Field Crops Res., 2003, 80, 223–234.
- Wickham, T. H., Predicting yield in lowland rice through a water balance model in Philippine irrigation systems: research and operations. International Rice Research Institute (IRRI), Los Banos, Philippines, 1973, pp. 155–181.
- Ahuja, S. P., Computer simulation of primary production of semiaquatic system using rice (Oryza sativa). Analysis and modeling of the physics of biological–climatological coupling. Ph D thesis, University of California, Devis, 1974.
- Angus, J. F. and Zandstra, H. G., Climatic factors and the modeling of rice growth and yield. In Agrometeorology of the Rice Crop, IRRI, Los Banos, Philippines, 1979, pp. 189–199.
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- Diwakar, M. C. (ed.), Rice in India during 10th Plan, Directorate of Rice Development, Patna, 2009.
- Ritchie, J. T., Wheat phasic development, In Modelling Plant and Soil System (eds Hanks, J. and Ritchie, J. T.), Agron. Mongr., ASA, CSSA, Madison, WI, USA, 1991, p. 31.
- Singh, K. K., Baxla, A. K., Singh, P. K. and Balasubramanian, R., A report on database for rice cultivars used in CERES-rice crop simulation model in different agroclimatic zones of India, Agromet Service Cell, New Delhi, 2010.
- Singh, P. K., Singh, K. K., Baxla, A. K., Rathore, L. S., Kumar, B., Balasubramanian, R. and Tyagi, B. S., Crop yield prediction using CERES-rice model for the climate variability of South Bihar alluvial zone of Bihar (India). AP Chapter of Association of Agrometeorologists National Symposium on Agro Meteorology, at Central Research Institute for Dry land Agriculture (CRIDA), Hyderabad, 2013, pp. 22–23.
- Singh, P. K., Singh, K. K., Baxla, A. K. and Rathore, L. S., Impact of climatic variability on Rice productivity using CERES-rice models Eastern plain zone of Uttar Pradesh. In Third International Agronomy Congress on ‘Agriculture Diversification, Climate Change Management and Livelihoods’, IARI, New Delhi, 26–30 November 2012 and extended summaries vol. (2), 2012, pp. 236– 237.
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- Akula, B., Estimating wheat yields in Gujarat using WTGROWS and INFOCROP models. Ph D thesis, Anand Agriculture University, Sardar Krishinagar, Anand, Gujarat, India, 2003.
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- Performance Evaluation of Standard and Security Extended Protocols in MANET
Authors
1 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, IN
2 Infant Jesus College of Engineering, Thothukudi District, Tamilnadu, IN
Source
Wireless Communication, Vol 4, No 11 (2012), Pagination: 648-655Abstract
An ad hoc network is a group of wireless mobile nodes, in which individual nodes cooperate by forwarding packets for each other to allow nodes to communicate beyond direct wireless transmission range. There are many protocols are there routing compare to standard protocols security enabled protocols are few. There are lot of security types one of the types is secure the route which packets flow through. Secure routing protocols extended from standard protocols. This paper compares four protocols, two standard and two secure protocols that are extended from the standard protocols. The two standard protocols are AODV, DSR and two security extended protocols are Ariadne and FACES by using NS2 simulator. AODV and DSR are basic protocols and they are already implemented and compared in many situation. FACES algorithm works by sending challenges and sharing friend Lists to provide a list of trusted nodes to the source node through which data transmission finally takes place. Ariadne is a secure on-demand ad hoc network routing protocol. Ariadne prevents attackers or compromised nodes from tampering with uncompromised routes consisting of uncompromised nodes. Two scenarios are consider in MANET and at last conclusion will be presented, that the efficiency of the secure protocols over standard protocols.Keywords
Secure Routing, AODV, DSR, MANET, FACES, Ariadne, NS2.- Improved Congestion Control for Packet Switched Networks and the Web Servers
Authors
1 J.J. College of Arts and Science, Bharathidasan University, Trichy, IN
Source
Networking and Communication Engineering, Vol 7, No 5 (2015), Pagination: 224-227Abstract
Cluster based web server has become a critical issue in various concert. Since user-level communication is an effective technique to reduce the intra-cluster communication overhead, cluster-based Web server design utilizing user-level communication mechanisms has been a popular research focus in recent times. In this context, the overall objective of this research is to explore several design issues in order to enhance the performance of cluster-based network servers based on user-level communication mechanisms. Due to their complexity, the performance of cluster-based Web servers is dependent on various design choices and demands imposed on the systems. Therefore, we investigate several design issues with different system environments as explained below. First, we propose a coscheduled server model, which coschedules the communication processes of a request. Its main objective is to minimize the response time of requests that need intra-cluster communication. It has two familiar techniques called Dynamic Coscheduling and DCS with immediate blocking. Secondly, SSL is providing the cluster-based application servers and it proposes a SSL with BF. Hence, improving the concert of SSL-enabled application servers is serious for designing scalable and high concert data center. Finally, it proposes a NIC data caching scheme, and it improves the distributed Web server’s performance. Although NIC memory is traditionally used for communication, it can be used for improving performance as well because modern NICs are equipped with much larger amounts of memory.
To investigate these techniques, it develops a widespread recreation testbed that captures the underlying communication layer in a cluster, the coscheduling algorithms, and the characteristics of a distributed Web server model. Extensive experiments of three proposed schemes using this testbed show that performance of cluster-based Web servers can significantly increase by employing these techniques.
Keywords
Cluster Based Web, Dynamic Coscheduling, NIC, Secure Socket Layer.- Middleware Architectural Framework for Secured Services in MANETs
Authors
1 Department of Computer Science, Jamal Mohamed College, Tiruchirappalli, IN
2 Alagappa University, Karaikudi, Tamil Nadu, IN
Source
Networking and Communication Engineering, Vol 3, No 3 (2011), Pagination: 172-176Abstract
One of the major challenges in Mobile Ad hoc Networks is the deployment of consistent end-to-end Quality of Service (QoS) for streaming media services. Conferencing and content delivery are few specific applications which require multicasting over MANETs. They also have a great impact on mobility, quality of service support, and security. Since Mobile Ad hoc Networks neither possess fixed topology nor any in-built architecture, the security threats for media streaming data are on the high edge. So, it is necessary to develop a secured multicasting protocol. This paper focuses on the design and development of a secured session-based QoS guaranteed middleware framework MAFSS (Middleware Architectural Framework for Secured Services in Mobile Ad hoc Network), interoperating with the middleware policy manager.Keywords
MANETs, Quality of Service, Media Streaming, Bandwidth, Route.- A Heuristic Profile Based Intruder Detection Scheme on MANET
Authors
1 Department of Computer Science, Jamal Mohamed College, IN
Source
Networking and Communication Engineering, Vol 2, No 10 (2010), Pagination: 416-422Abstract
The major challenge in the design of MANETs is their vulnerability to security attacks. The rapid proliferation of multiple heterogeneous mobile/wireless networks and mobile computing applications attribute for the change in security architecture. The major obstacle for the detection of an internal intrusion is that the nodes are under consistent mobility. Nodes move constantly within the internal domain of MANET. In such cases, the traditional intrusion detection approach has to be allocated to several strategic points to identify an intrusion or attempted attack at the moment it occurs. A number of algorithms and schemes for detecting intruders in MANET exist, but all systems suffer from performance penalties and high false alarm rates. This research work concentrates on the development of an architectural model for identifying intruders using profile based anomaly or misuse detection mining approach. The proposed architecture aims to minimize the costs involved in monolithic intrusion detection and works on identifying intruders based on XML/ontology setup in mobile nodes. The model is simulated using ns2 simulator.Keywords
Intrusion Detection, Wireless Networks, Profile, Mobile Ad Hoc Networks, AODV.- Segmention of Optic Disk from Fundus Images
Authors
1 Computer Science and Engineering, Manonmaniam Sundaranar University, Tiruneveli, IN
2 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, Tiruneveli, IN
Source
Digital Image Processing, Vol 4, No 13 (2012), Pagination: 729-731Abstract
The optic disk (OD) can be used for the diagnosis of fundus disorders. The main goal of the system is to segment the optic disk. In this, the first technique is C-V (Chan-Vese) Method, using which OD is segmented. The second technique used for the segmentation of OD is based on Active contours using region-based information. Comparing the results of the C-V Method and the Active contour Method the analysis has made.Keywords
Area, Active Contour, Boundary Distance, C-V Method, Diagnosis, Fundus Image, F-Score, Iteration, Optic Disk, Segmentation, Snake, Time.- Textural Analysis for the Accuracy in Diagnosis of Medical Scan/CT Images
Authors
1 Mother Teresa University, Kodaikannel, IN
2 EBET Knowledge Park, Tirupur, IN
Source
Digital Image Processing, Vol 2, No 5 (2010), Pagination: 157-160Abstract
To determine the accuracy of normal tissue scan images from the abnormal cases, the GLCM (Grey-Level Co-occurrence matrix) and their derived parameters such as homogeneity of the images and energy level calculations were approached. These structural and textural parameters were calculated by using mathematical formulae. In each case 20 abdominal scan images of both normal and abnormal patients were employed. The data generated out of this present investigation was tabulated and statistically analyzed. The analysis for energy level on the images disclosed that there was a clear distinguish between normal tissue and abnormal tissue. The above results are discussed with relation to the accuracy.Keywords
Textural Features of CT Images, Statistical Design For Image Studies, Medical Image Textural Analysis.- Enhanced Association Rule Mining Algorithm to Extract High Utility Itemsets from a Large Dataset
Authors
1 H.H. The Rajah's College (Autonomous), Pudukkottai, Tamil Nadu, IN
2 Dept. of Computer Applications, Karpaga Vinayaga College of Engineering and Technology, Kancheepuram, Tamil Nadu, IN
Source
Data Mining and Knowledge Engineering, Vol 7, No 7 (2015), Pagination: 238-241Abstract
Data mining aims at bringing out the hidden information from a large data set using data mining techniques according to the requirements. Association rule mining identifies itemsets that occur frequently in data set and frames association rules by taking all items equally. But many differences exist among the items that play a vital role in decision making. By taking one or more values of items as utilities, the utility mining technique works on finding the itemsets with greater utilities. In the proposed paper we present a utility mining algorithm named IUM (Improved Utility Mining) algorithm that finds high utility itemsets and also low utility itemsets from a large data set and the experiments states that the proposed algorithm performs better than existing algorithms in case of running time.Keywords
Association Rules, Frequent Itemsets, Low Utility Itemset, High Utility Itemset.- A Survey in Health Care Data Using Data Mining Techniques
Authors
1 Bharathidasan University, Department of Computer Applications, Anna University, Tiruchirappalli, IN
2 J.J. College of Arts and Science, Affiliated to Bharathidasan University, Pudukkottai, IN
Source
Data Mining and Knowledge Engineering, Vol 7, No 2 (2015), Pagination: 99-103Abstract
Data mining is the process of analyzing the enormous set of data. Data mining techniques have been used in healthcare research and known to be effective. Medical data has much information that needs to be exploited in order to get intelligence on medical events. Medical information is various in range and very large in content and its size is voluminous that conventional diagnostic technique disclose very little of the potential conclusion. Medical data mining can help to obtain latent patterns or actionable knowledge. It plays a significant function can spot trends and anomalies in their data in healthcare organization and disclose invaluable knowledge which in turn more useful for the healthcare professionals for decision making. In this paper we survey the effectiveness of diverse techniques in data mining such as classification, clustering, association, regression. These techniques can be applied to medical data to recognize trends and profiles hidden in mounds of data which may be essential to effective treatment for patients, management of healthcare organization and clinical feature of healthcare. This survey also highlights healthcare domain, requisite of data mining in Medicare field, algorithms used in today's healthcare domains.Keywords
Data Mining, Contemporary Data Mining Techniques, Medical Data Mining.- An Estimation of Privacy in Incremental Data Mining
Authors
1 Department of Information Technology, Sathyabama University, Chennai, IN
2 Department of Computer Science and Engineering, St. Joseph’s College of Engineering, Chennai, IN
3 Tata Consultancy Services, Chennai, IN
Source
Data Mining and Knowledge Engineering, Vol 2, No 4 (2010), Pagination:Abstract
Data are values of qualitative or quantitative variables, belonging to a set of items. In recent years, advances in hardware technology have lead to an increase in the capability to store and record personal data about consumers and individuals. This has lead to concerns that the personal data may be misused for a variety of purposes. Data explains a business transaction, a medical record, bank details, educational details etc., Use of technology for data collection and analysis has seen an unprecedented growth in the last couple of decades. Such information includes private details, which the owner doesn’t want to disclose. Such data are the sources for data mining. Data mining gives us “facts” that are not obvious to human analysts of the data. When such sensitive data are given directly for mining, the security of the individual is highly affected. So the data are modified and presented for data mining. But the problem is that the altered data should also produce a similar mining result. This has lead an area called privacy preservation in datamining which is an intersection of data mining and information security. The fact in this area is the additional task which is used to implement the privacy degrades the performance of the data mining algorithm, which results in incorrect mining results. This crucial situation has led to the development of this paper which deals with the data metrics that determines the quality of the following existing privacy preserving algorithms viz., Correlation- aware Anonymization of High-dimensional Data (CAHD) [1], Privacy-Preserving Outlier Detection Through Random Nonlinear Data Distortion (PRND) [2], Privacy-Preserving Data Aggregation(PPDA) [3], Privacy-Preserving Incremental Data sets( PRID) [4] which defines various methods for implementing privacy in incremental data. Major metrics like data utility, privacy and computational time are considered for evaluation and their detailed performance is discussed.
Keywords
Datamining, Privacy Preservation, Perturbation, Quality Metrics, Anonymization.- Design and Analysis of Electro-Thermal Grippers for Holding Micro-Components
Authors
1 Dept. of Mechanical Engg., Jawahar Engg. College, Chennai, IN
2 Dept. of Manufacturing Engg., Anna University, Chennai, IN
3 Dept. of Electrical and Electronics Engg., Anna University, Chennai, IN
4 Precision Engg. Division, Bhabha Atomic Research Center, Mumbai, IN
Source
Manufacturing Technology Today, Vol 13, No 12 (2014), Pagination: 20-23Abstract
Grippers are used to pick, hold and place macro/micro-components, which are widely used in the field of assembly. In this work, for the first time an electro-thermal gripper (collet) is designed and analysed using two thermal actuator structures with reverse currents in order to reduce the out-of-plane actuation for holding micro-components in a narrow range of sizes between 100 μm to 1000 μm. The electro-thermal gripper is designed and analyzed using Comsol Multiphysics Design and Analysis Software. The materials considered for the electro-thermal gripper are alluminium and steel. From the analysis, it is observed that in the case of alluminium electro-thermal gripper at 0.1 V, the in-plane displacement is found to be 22 μm and the out-of-plane displacement is found to be 0.1 μm. In the case of steel electro-thermal gripper at 0.1V, the in-plane displacement is found to be 0.1 μm and out-of-plane displacement is found to be 0.00005 μm. It is observed that alluminium results in better displacement compared to steel.Keywords
Microgripper, Electro-Thermal Gripper, Microactuator, Comsol Multiphysics.- Fusion of Contourlet Transform and Zernike Moments using Content based Image Retrieval for MRI Brain Tumor Images
Authors
1 Department of Computer Science and Engineering, Manonmanian Sundaranar University, Tirunleveli, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 29 (2016), Pagination:Abstract
Background: Content based Image Retrieval (CBIR) is employed to search and retrieve the expected image from the database. Magnetic Resonance Imaging (MRI) technique plays a crucial role in diagnosing many diseases in human brain. Methods: In this paper, we proposed a texture fusion technique for T1 and T2 weighted MRI scans. Our proposed technique has three parts. First, texture and shape features are extracted from a brain tumor images. Next, the feature selection techniques like Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) are used to combine the texture and shape features. Finally, the popular supervised learning machine techniques like Deep Neural Network (DNN) and Extreme Learning Machine (ELM) are used to classify the brain tumor based on the selected features. Findings: The results of proposed MRI brain tumor diagnosis method are robust, efficient, effective, reduces the retrieval time and improves the retrieval accuracy significantly. Best overall classification accuracy results were obtained using the given DiCom Images. Application: The proposed MRI image based brain tumor retrieval would efficiently deal with a medical decision system based on the CT+ZM fusion method provides more accurate results, so this method can yield better result of brain tumor diagnosis in advance where this method using in medical fields.Keywords
CBIR, Contourlet Transform, DNN, ELM, GA, PSO, Zernike Moments.- Advanced Cluster Based Image Segmentation
Authors
1 Department of Computer Science and Engineering, Dr. Sivanthi Aditanar College of Engineering, Tamil Nadu, IN
2 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, Tamil Nadu, IN
3 Department of Information Technology, Jayamatha Engineering College, Tamil Nadu, IN
Source
ICTACT Journal on Image and Video Processing, Vol 2, No 2 (2011), Pagination: 307-318Abstract
This paper presents efficient and portable implementations of a useful image segmentation technique which makes use of the faster and a variant of the conventional connected components algorithm which we call parallel Components. In the Modern world majority of the doctors are need image segmentation as the service for various purposes and also they expect this system is run faster and secure. Usually Image segmentation Algorithms are not working faster. In spite of several ongoing researches in Conventional Segmentation and its Algorithms might not be able to run faster. So we propose a cluster computing environment for parallel image Segmentation to provide faster result. This paper is the real time implementation of Distributed Image Segmentation in Clustering of Nodes. We demonstrate the effectiveness and feasibility of our method on a set of Medical CT Scan Images. Our general framework is a single address space, distributed memory programming model. We use efficient techniques for distributing and coalescing data as well as efficient combinations of task and data parallelism. The image segmentation algorithm makes use of an efficient cluster process which uses a novel approach for parallel merging. Our experimental results are consistent with the theoretical analysis and practical results. It provides the faster execution time for segmentation, when compared with Conventional method. Our test data is different CT scan images from the Medical database. More efficient implementations of Image Segmentation will likely result in even faster execution times.Keywords
Parallel Algorithms, Region Growing, Image Enhancement, Image Segmentation, Parallel Performance.- Weed Management Studies in Cassava (Manihot esculenta L.) Intercropping Systems under Irrigated Conditions
Authors
1 Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, IN
2 Department of Agronomy, AC & RI, Madurai-625 104, IN
Source
Journal of Horticultural Sciences, Vol 3, No 2 (2008), Pagination: 141-145Abstract
A field experiment was conducted during 2003-04 and 2004-05 to asses the production potential of intercropping of cassava (Manihot esculenta L.) with groundnut (Arachis hypogea), vegetable cowpea (Vigna sinensis) and black gram (Vigna mungo) in relation to various weed control practices. Intercropping influenced the population of grasses, sedges, BLW and total dry matter production of weeds. Weed management caused significant improvement in growth, yield and economic returns of cassava system. Best results were achieved with intercropping of vegetable cowpea with pre-emergence application of fluchloralin 0.75 kg/ha + one hand weeding 4 weeks after planting followed by application of alachlor @ 1.5 kg/ha + one hand weeding 4 weeks after planting.Keywords
Cassava, Intercropping, Weed Control, Yield, Economics.- Two Remarks on a Result of Ramachandra
Authors
1 Tata Institute of Fundamental Research, Bombay 400 005, IN
Source
The Journal of the Indian Mathematical Society, Vol 38, No 1-4 (1974), Pagination: 395-397Abstract
Improving on the results of Montgomery [3] and Huxley [1], Ramachandra proved (see Lemma 4 of [5]) the following large value theorem:
THEOREM 1. Let an = an(N) (n = N+1, . . . , 2N) be complex numbers subject to the condition max |an| = O(Nε) for every ε > 0. Suppose that n N does not exceed a fixed power of T to be defined. Let V be a positive number such that V+1/v= O(Tε)for every ε > 0. Let Sr (r = 1, 2, ...,R; R≥2) be a set of distinct complex numbers Sr = σr + itr and let min σr = σ, 3/4 ≤ σ ≤ 1,
max tr - min tr + 20 = T, min |tr - tr|≥(log T)2.
- Secure and Faster Clustering Environment for Advanced Image Compression
Authors
1 Department of Computer Science and Engineering, Dr Sivanthi Aditanar College of Engineering, Tiruchendur, Tamilnadu, IN
2 Department of Computer Science and Engineering, Manonmaniam Sundarnar University, Abishekapatti, Tirunelveli, Tamilnadu, IN
3 Department of Computer Science and Engineering, Einstein College of Engineering, Tirunelveli, Tamilnadu, IN
4 Department of Information Technology, PSN College of Engineering and Technology, Tirunelveli, Tamilnadu, IN
Source
International Journal of Advanced Networking and Applications, Vol 2, No 3 (2010), Pagination: 671-678Abstract
Cloud computing provides ample opportunity in many areas such as fastest image transmission, secure and efficient imaging as a service. In general users needs faster and secure service. Usually Image Compression Algorithms are not working faster. In spite of several ongoing researches, Conventional Compression and its Algorithms might not be able to run faster. So, we perform comparative study of three image compression algorithm and their variety of features and factors to choose best among them for cluster processing. After choosing a best one it can be applied for a cluster computing environment to run parallel image compression for faster processing. This paper is the real time implementation of a Distributed Image Compression in Clustering of Nodes. In cluster computing, security is also more important factor. So, we propose a Distributed Intrusion Detection System to monitors all the nodes in cluster . If an intrusion occur in node processing then take an prevention step based on RIC (Robust Intrusion Control) Method. We demonstrate the effectiveness and feasibility of our method on a set of satellite images for defense forces. The efficiency ratio of this computation process is 91.20.Keywords
Compression, Cluster, JPEG, Distributed Computing, Security.- An Analytical Performance Measure for Smooth Handoff in Mobile IPv6
Authors
1 Holy Cross College (Autonomous), Tiruchirappalli-620002, Tamilnadu, IN
2 Raja Duraisingam Government Arts College, Sivagangai, Tamil Nadu, IN
Source
International Journal of Advanced Networking and Applications, Vol 1, No 3 (2009), Pagination: 175-180Abstract
Mobility is the most important feature of a wireless communication system. The mobile device needs to connect multiple points of connection and perhaps multiple networks as it moves from one location to another. Handover management is the way a network uses to maintain connection to a mobile user as it moves and changes its access point to the network. The IETF’s mobile IP that uses mobile agents to support seamless handoffs, making it possible for mobile hosts to roam from subnet to subnet without changing IP addresses. To reduce the impact on the performance and the signaling overheads, hierarchical mobility management schemes define protocols that allow movements within a domain to be handled locally, without involvement of the mobile node’s home network. To reduce the packet losses during handoff, new schemes have been defined, such as smooth handoff. This paper surveys basic handover mechanisms with an analytical model of mobile Internet protocols and also we have propose a novel performance model to evaluate the packet loss and packet delay for UDP streams that is involved in a handoff. The reason for this loss is identified and solutions to this problem are projected. This paper proposes methodology include mathematical models which is able to predict the handoff latency with empirical study.Keywords
Mobility Management, Mobile IP, IPv4, IPv6, Smooth Handoff.- Estimated Bandwidth Distribution with Admission Control for Enhanced QoS Multicast Routing in MANETs
Authors
1 Holy Cross College (Autonomous), Tiruchirappalli-620002, IN
2 Rajah Duraisingam Government Arts College, Sivagangai, IN
Source
International Journal of Advanced Networking and Applications, Vol 1, No 2 (2009), Pagination: 69-75Abstract
Wireless networks become more widely used to support advanced services. Traditional approaches to guarantee quality of service (QoS) work well only with predictable channel and network access. The Multicast transmission is a more efficient mechanism when compared to uni-casting in supporting group communication applications and hence is an important aspect of future network developments. To enable high QoS for all admitted traffic, the Admission Control monitors the wireless channel and dynamically adapts admission control decisions to enable high network utilization while preventing congestion. Mobile Adhoc networks can provide multimedia users with mobility, if efficient QoS multicast strategies were developed. In load balancing QoS Multicast Routing QMR, constant available bandwidth for the link is assumed. A cross-layer framework to support QoS multicasting is extended for more effective than QMR. The extension reflects good packet delivery ratios associated with lower control overhead and lower packet delivery delay. If minimum real-time requirements are not met, these unusable packets waste scarce bandwidth and hinder other traffic, compounding the problem. Whereas the dynamically adapted mobility with control overhead monitors the high QoS for all admitted traffic, and the bandwidth for each node is enhanced to reflect the good packet delivery ratio associated with lower control overhead and lower packet delivery delay.Keywords
Admission Control, Bandwidth Estimation, Control Overhead (OH), Delivery Ratio, Load Balancing, QoS, QMR.- On the Number of Factorizations of an Integer
Authors
1 Institute of Mathematical Sciences, Taramani, Chennai, 600 113, IN
2 Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400 094, IN
Source
Journal of the Ramanujan Mathematical Society, Vol 32, No 4 (2017), Pagination: 417–430Abstract
Let f (n) denote the number of unordered factorizations of a positive integer n into factors larger than 1. We show that the number of distinct values of f (n), less than or equal to x, is at most exp (C √log x / loglog x (1+o(1))), where C = 2π √ 2/3 and x is sufficiently large. This improves upon a previous result of the first author and F. Luca.- Reproductive Maturation of Seahorse, Hippocampus kelloggi, (Jordan and Snyder, 1902) in Cuddalore Coast, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608 502, Tamil Nadu, IN
Source
Indian Journal of Education and Information Management, Vol 6, No 2 (2017), Pagination: 1-6Abstract
Background/Objectives:Seahorse species are being used in aquarium keeping and it is particularly used as ingredients in traditional medicine, particularly in Southeast Asia as Traditional Chinese Medicine. The decline of these species is great concern in the light of global exploitation of seahorses. The maturation definition must be established to know the species distribution and effective conservation measures can be applied to target organisms.
Methods/Statistical Analysis: The collection was made from Cuddalore coast on monthly basis over the period of one year (October 2000 to September 2001). The samples after collection were preserved in 5% formalin and later dissected along latero-ventral side near the abdominal region and the gonads were removed carefully. Ovaries were preserved in modified Gilson’s fluid and ova diameter measurements were made from ovaries of various maturity stages.
Findings: Specimens with different maturity stages of gonads (testes and ovaries) were recorded during different months in Hippocampus kelloggi. The percentage of occurrence of maturity stages of gonads during different months is illustrated. The ova diameter distribution of six different maturity stages in Hippocampus kelloggi is presented. Stage I - V was composed egg diameter of 1.06 – 1.35 mm, 1.36 – 1.65 mm, 1.66 – 1.85 mm, 1.86 - 2.05 mm and 2.06 - 2.45 mm respectively. In stage VI (spent recovering) only a few ova were observed.
Application/Improvements: The reproductive maturation evidences for the most robust approach to determine quantity of seahorses.
Keywords
Seahorse, Male, Female, Maturity Stages, Ova, Percentage Frequency.References
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- Effect of Lead Nitrate on Histopathological Changes in Tissues of Freshwater Fish Labeo rohita (Ham.)
Authors
1 Deportment of Zoology, Annamalai University, Annamalai Nagar, Tamil Nadu -608 002, IN
2 Center Advanced study in Marine Biology, Annamalai University Parangipettai, Tamil Nadu- 608 502, IN
Source
Indian Journal of Education and Information Management, Vol 6, No 2 (2017), Pagination: 1-8Abstract
Objective: To investigate lead nitrate toxicity with emphasis on the histopathological effects of fish Labeorohita.
Methods: The fishes were exposed to 31, 31.5, 32, 32.5 and 33ppm of lead nitrate (LN) solution at 24, 48, 72 and 96 hours of intervals. The lethal conc. (LC50) value of lead nitrate was 33ppm for 96 h of exposure. Fishes were exposed to control and sub lethal conc. of lead nitrate (3.3ppm) over a period of 96 h.
Findings: Histopathology of fish organs, after 96 Hof LN exposure revealed the cell proliferation, lamellar fusion, lamellar cell hyperplasia, and epithelial lifting. The vacuolation of hepatocytes and necrosis were observed in liver. The changes of the tissue cells were predominantly showed in 96hr.
Application/Improvements: LN is highly toxic to Labeorohita therefore its high conc. of LN in areas close to aquatic bodies should not be encouraged. Fishes from such water bodies is not suitable for human consumption because of the possibility of toxic material present in the fish. Fishes as well as water due to such pollution are toxic to human beings.
Keywords
Lead Nitrate, Histopathology, Labeorohita, Hyperplasia, Water Bodies, Heavy Metal.References
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- Food and Feeding Habits of Seahorse, Hippocampus kelloggi (Jordan and Snyder, 1902) in Cuddalore Coastal Water, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608 502, Tamil Nadu, IN
Source
Indian Journal of Education and Information Management, Vol 6, No 3 (2017), Pagination: 1-8Abstract
Background/Objectives: Seahorses might render them vulnerable to overfishing or other disruptions such as habitat damage. Different species of Hippocampus are harvested on a large-scale, and traded by at least 50 na-tions in high volumes and various product forms. The unsustainable exploitation has focused attention on the large gaps in our knowledge of wild seahorse biology and ecology. Hippocampus kelloggi is one the most widely held species in public aquaria and also used for traditional medicines.
Methods/Statistical analysis: Seahorse H. kelloggi samples were collected from Cuddalore coast during Oct. 2000 – Sept. 2001 for gut content analysis. The point’s method and percentage occurrence method have been adopted. The gut contents were estimated based on the frequency of occurrence of different food materials following the point’s method. The guts were considered ‘full’ when the gut was packed with food with thick wall and intact, ‘3/4 full’ when it was partly full ‘½ full’, ‘¼ full’, ‘trace’ and ‘empty’ according to the relative condition of the gut as indicated above.
Findings: The diet of H. kelloggi mainly considered of Acetes sp., copepods, mysids, tanaids, megalopa larvae, amphipods, shrimp larvae, polycheates , nematodes etc. Acetes sp. was dominant food item for adult and it was contributed 48.6 to 64.1% during different months. The other food items of amphipods (5.0 to 9.5%), tanaeids (2.4 to 9.1%), copepods (.33 to 0.7%), lucifer (2.8 to 10.0%), mysids (2.3 to 2.5%), shrimps (larvae and juveniles) (3.7 to 9.0%), polychaetes (5.3 to 12.5%), nematodes (1.2 to 6.3%) and the fish larvae (3.0 to 3.3%) were recorded. Copepods were the major food items in juveniles which contributed 15.4 to 29.8% for the whole year. The other food items were amphipods (11.3 to 18.5%), mysids (8.5 to 16.9%), tanaeids (6.4 to 17.4%), megalopa larvae (4.4 to 9.4%), Acetes sp. (4.3 to 16.6%), lucifer (2.2 to 8.5%), shrimps (larvae and juveniles) (2.5 to 4.3%), polychaetes (2.5 to 12.2%), and nematodes (4.4 to 16.0%). Active feeding was showed after spawning season in adult.
Application/Improvements: Through this work may hope to increase our understanding of seahorse feeding ecology, and to stimulate the development of sampling approaches that can help to balance the need to use specimens in research and the conservation needs.
Keywords
Hippocampus kelloggi, Adult, Juvenile, and Food Items, Percentage Occurrence, Dominant Food.References
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- Determination of OC, N, P, K Level with Effect Endosulfan in Vermicompost
Authors
1 Deportment of Zoology, Annamalai University, Annamalai Nagar, Tamil Nadu - 608 002, IN
2 Center Advanced study in Marine Biology, Annamalai University Parangipettai-608 502, Tamil Nadu, IN
Source
Indian Journal of Education and Information Management, Vol 6, No 3 (2017), Pagination: 1-6Abstract
Objective/Backgrounds: The analysis of selected macronutrients such as NPK and OC content in the natural compost (WU) and vermicompost (WW) produced from sublethal concentrations of endosulfan mixed cow dung by the action of Indian earthworm Lampitomauritii (Kinberg).
Methods/Statistical analysis: Biomass, OC, N, P and N level was observed in endosulfan mixed vermicompost and natural compost at the end of 90th day.
Findings: The biomass of L. mauritii, OC, N, P and K was decreased in endosulfan treated experiments than control.
Application/Improvements: To reduce the application of pesticides in the agricultural field due to affecting the non target farmer’s friend organism like earthworms.
Keywords
Earthworm, Lampitomauritii, Pesticide, Endosulfan, Growth, Nutrients.References
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- Culture Practices of Litopenaeus vannamei in Fresh Water Grow-Out Ponds
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608 502, Tamil Nadu, IN
2 Deportment of Zoology, Annamalai University, Annamalai Nagar -608 002, Tamil Nadu, IN
Source
Indian Journal of Education and Information Management, Vol 6, No 3 (2017), Pagination: 1-9Abstract
Background/Objectives: Shrimp farming has been made an impressive growth in many developing countries especially in Asian countries. This activity is paved way to prominent economic growth and social importance.
Methods/Statistical analysis: The present study was undertaken for shrimp culture during August 2015 – November 2015 from fresh water aquaculture farm. Water samples were collected from culture ponds during the study period to analyze various physico-chemical parameters. The L.vannameiseeds (post larval stage 14) that had been acclimatized to the oppt salinity and it were confirmed disease free, transport with maintained optimum condition and reached to the ponds. The seeds were properly stocked in the culture ponds.
Findings: The water temperature values varied from 24°C and 28°C.Ranges of salinity 0.5 - 2.5 ppt were recorded. DO (dissolved oxygen) values varied from 4 and 7.1ml/l. The maximum pH values of 8.0 was recorded during the month of November 2015 and minimum of 7.3 was observed during August 2015. The maximum of feed provision 3.635tn was recorded in P3 (pond 3) and minimum of 3.145 was recorded at P1 (pond 1). The maximum ABW 25.3g was recorded in P3 and minimum of 24.5 was recorded at P1. The maximum biomass 2.340tn was recorded in P3 and minimum of 2.058tn was recorded at P2.
Application/Improvements: Shrimp culture has been increasing recent years in Indian Subcontinent. Liberalization of economy, high profitability and good international market are the factors, this has been given new impetus for shrimp culture boom in India. Hence, the present has been carried out the culture activity of L. vannamei in fresh water environment. This will be motivated and enhanced the culture practices.
Keywords
L. vannamei, Pond Preparation, Physic-Chemical Parameter, Seed Stocking, Mineral Supplementation, Feed Management, Growth Monitoring and Harvesting.References
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- H.C. Chen. Water quality criteria for forming the grass shrimp Penaeus monodon. Proceeding of the First International Conference on Culture of Penaeid prawns Shrimps. Aquaculture Department SEAFDEC, Philippines. 1985.
- Influence of Seasonal Changes on Physico-Chemical Characteristics of Uppanar Estuary, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai- 608502, Tamil Nadu, IN
2 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai- 608502, Tamil Nadu
3 Deportment of Zoology, Annamalai University, Annamalai Nagar 608 002 Tamil Nadu, IN
Source
Indian Journal of Education and Information Management, Vol 6, No 3 (2017), Pagination: 1-8Abstract
Background/Objectives: To study the seasonal changes influencing the various abiotic factors in estuaries and shallow coastal waters.
Methods/Statistical analysis: Water sample was collected from Uppanar estuary for a period of one year to analyze various physico-chemical parameters during the study period.
Findings: the present work was carried out on physic-chemical characteristics of water in Uppanar estuary, southeast coast of India during the study period. The findings of physical parameters are: water temperature values ranged from 24.0 to 32.0°C, salinity values of 15 ppt - 36.5ppt, pH values ranged from 8.3 – 7.4, turbidity range 1 to 2000 NTU, TSS (total suspended solid) from 1108mg/l - 1040 mg/l, and DO (dissolved oxygen) range 3.7 to 5.2 ml/l. Chemical parameters of water: NO2 ranged from 0.239 to 3.745 μM/l, NO3 values varied from 3.86 to 12.54 μM/l, TN (total nitrogen), ranged from 9.32 to 28.19 μM/l, IP (inorganic phosphate) values varied from 0.110 to 0.89 μM/l, TP concentration ranged from 1.19 to 32.62 μM/l.
Application/Improvements: The physical and chemical properties of water immensely influence the uses of a water body for the distribution and richness of biota and also influence both vertical and horizontal migration of aquatic organisms.
Keywords
Physico-Chemical, Chemical Parameters.References
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- L. Zaggia. Sulphate reduction in the sediment of the Venice canals (Italy). Marine Pollution Bulletin. 2007; 55(10-12), 415-424.
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- Brood Size of Seahorse, Hippocampus kelloggi, (Jordan and Snyder, 1909) in Cuddalore Coast, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608 502, Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 2 (2017), Pagination: 1-7Abstract
Background/Objectives: Seahorses are found worldwide in shallow coastal tropical and temperate seas. It is commercially used as medicinal purposes and they are increasing the demand 20 % per year. The low fecundity and structural patterns are leads to limited production of seahorses. The reproductive approach of seahorses, the female deposit their eggs into the male brood pouch where fertilization takes place.
Methods/Statistical Analysis: The samples after collection were preserved in 5% formalin and later dissected the brood pouches with ventral side near the base of the abdominal and middle region of tail were carefully opened and were collected the young ones.
Findings: BPSI is increased corresponding to the development of embryos and decreased after the release of the young ones. The young ones ranged from 650 to 5750 in the size range 160 -299 mm (SL). Hippocampus kelloggi was found to accommodate an average of 2696 young ones in its brood pouch.
Application/Improvements: In 1995, it was conservatively estimated that as many as 20 million seahorses were caught for their use in Traditional Medicine (TM) and this trade is thought to be unsustainable. Besides, anthropogenic, industrial, domestic and other disturbances to the habitat caused severe damage to seahorse population. The decline of these species is great concern in the light of global exploitation of seahorses. The brood size aspect must be showed to know the production and survival of the seahorses. This is lead to avoid over exploitation of seahorses. Hence, the present study has been carried out the brood size of seahorse H. kelloggi.
Keywords
Seahorses, Brood Pouch, Hippocampus Kelloggi.References
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- M. Prein. Aquaculture potential of seahorses and pipe fishes. Naga (ICARM). 1995; 18(1), 20-21.
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- Distribution of Polychaete Species in Uppanar Estuary, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502 Tamil Nadu, IN
2 Deportment of Zoology, Annamalai University, Annamalai Nagar - 608 002 Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 3 (2017), Pagination: 1-5Abstract
Background/Objectives: Macrobenthos are of special interest because of them are sessile or have a limited mobility and thus directly depend on environment conditions. They are showings marked response to environmental changes depending on their specific sensitivity and tolerance level. Among the macrobenthic forms, the polychaetes are dominant group which are important food source for higher trophic levels of most estuarine and near shore environment. Methods/Statistical Analysis: Sediment samples were collected from Uppanar estuary, Cuddalore coast for a period of one year from Jan’ 2011 – Dec’ 2011 to collect and analyze the distribution and diversity of polychaete species during the study period. Findings: The distribution and diversity of polychaete species, the total numbers of 36 species were recorded belonging to 19 families during the study period in this station. The maximum 32 species of polychaetes were recorded in summer and minimum of 23 species were recorded at monsoon. Among them five species of polychaetes (Capitella capitata, Nereis virens, Polydora ciliata, Perinereis cultrifera and Glycera Alba) were dominated in all the seasons. Application/Improvements: They are playing an important role in ecosystem process such as nutrient cycling, pollutant metabolism and dispersion. They are also considering as an important secondary production of among the macrobenthos. Polychaetes are also play a important role of pollution indicator.Keywords
Uppanar estuary, Sediments, Polychaete species, Distribution, Diversity.References
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- Fecundity of Seahorse, Hippocampus Kelloggi, (Jordan and Snyder, 1902) in Cuddalore Coast, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608 502, Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 3 (2017), Pagination: 1-6Abstract
Background/Objectives: Commercial demands for seahorses, mainly for medical purposes, are increasing by 20% per year. Seahorses are found worldwide in shallow coastal tropical and temperate seas. The reproductive behaviour of seahorses, found the females to deposit pear-shaped eggs in the male brood pouch where fertilization takes place. The dwarf seahorse, H. zosterae to form monogamous pair every morning until copulation takes place.
Methods/Statistical Analysis: The collection was made from Cuddalore coast on monthly basis over the period of one year (October 2000 to September 2001). The samples after collection were preserved in 5% formalin and later dissected along latero-ventral side near the abdominal region and the gonads were removed carefully. Ovaries were preserved in modified Gilson’s fluid and ova diameter measurements were made from ovaries. For fecundity estimation, only stage V ovary was taken into consideration. Fecundity was estimated by the gravimetric method of various maturity stages.
Findings: The fecundity of the seahorse was calculated in the animals having stage V (mature) ovary only. The number of eggs varied from 850 to 18,950 in the size range 156 - 296 mm (SL). The average fecundity of H. kelloggi observed in the present study was 6638.2 eggs.
Application/Improvements: It is particularly used as ingredients in traditional medicine, particularly in Southeast Asia where Traditional Chinese Medicine. The decline of these species is great concern in the light of global exploitation of seahorses. The fecundity aspect must be established to know the production and survival of the seahorse species and with effective conservation measures can be applied to target organisms. Hence, the present study has been carried out the fecundity of seahorse H. kelloggi.
Keywords
Seahorses.References
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- T.B. Bagenal. Eggs and early life history I. Fecundity. In methods for assessment of fish production in freshwater (W. E. Ricker, Ed.). Oxford Blackwell Scientific Publication. 1968; 160-169.
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- Seasonal Influence on Physico-Chemical Properties of Coastal Waters in Nagapattinam, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502, Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 9 (2017), Pagination: 1-6Abstract
Background/Objectives: Near shore or coastal water bodies are important sources of marine environment. Water is inevitable properties for the living being. Water quality assessment is important in understanding biological phenomena of coastal zone.
Methods/Statistical analysis: Water and sediment samples were collected from Nagapattinam coastal water at monthly interval from July’ 2016 – June' 2017 to analyze various physico-chemical parameters in water and sediments.
Findings: The water temperature values ranged from 22°C to 32°C. Salinity ranged from 28ppt to 35ppt. The pH values ranged from 7.6 – 8.2. DO values varied from 4.1 ml L-1 to 5.2ml L-1. The water nutrient concentrations observed as: NO2:0.96 – 4.509 μg L-1, NO3:0.603 μg L-1 to 2.498 μg L-1, TN: 6.004 – 14.52 μg L-1, IP: 0.398 – 1.0198 μg L-1 and TP: 0.516 – 2.127 μg L-1 were recorded respectively. The nutrient concentration observed in sediment ranged from TN, 5.408 μg L-1 – 13.918 μg L-1, TP, 7.54 μg L-1 – 16.872 μg L-1 TOC, 6.68 μg L-1 – 13.882 μg L-1 respectively.
Application/Improvements: Physico-chemical variations of water are accountable for the aquatic organisms. Which is interactive with physical, chemical and biological processes of the coastal ecosystem for sustain life. The nutrients provide the potential fertility for water masses and it is necessary to collect the data for their distribution. Hence, the present work has been carried out the physico-chemical characteristics of Nagapattinam coastal waters in Tamil Nadu, India.
Keywords
Water, Sediments, Physical Parameters, Nutrients, Coastal Zone.References
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- J. Rani, Anita Kannagi, V. Shanthi. Correlation of total heterotrophic bacterial load in relation with hydrographical features of Pazhayakayal estuary, Tuticorin, India. Journal of Environmental Biology. 2012; 33(4), 769-773.
- A. Sundaramanikam, H. Sivaki. A comparative of physic-chemical investigation along Parangipattai and Cuddalore coast. Asian Network for Scientific Information. 2008; 1, 1-10.
- J.D.H. Srtickland, T.R. Parsons. A practical hand book of seawater analysis. Fisheries Research Board of Canada. 1972; 167, 1-310.
- M.V. Vhincy, Brilliant Rajan, A.P. Pradeep Kumar. Water quality assessment of a tropical wetland ecosystem with special reference to backwater tourism, Kerala, South India. International Research Journal of Environment Science. 2012; 1(5), 62-68.
- Distribution of Nematodes in Karaikkal Coastal Waters, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502 Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 9 (2017), Pagination: 1-5Abstract
Background/Objectives: Nematodes are considered as most dominant meiofaunal group in marine benthic habitats. They are an account on 70–90% in marine sediments, where they play fundamental ecological roles. Nematodes are particularly sensitive to changes in environmental parameters and thus useful in assessing the environmental disturbances.
Methods/Statistical analysis: Sediment were collected from Karaikkal coastal waters for a period of one year from July’ 2016 – June 2017 to collect the nematodes.
Findings: the present study was carried out the distribution and diversity of nematodes in Karaikkal coastal waters during July 2016 – June 2017. The total numbers of 31 nematodes species were recorded during the study period. All the species were recorded in summer and minimum of 16 species were found at monsoon. Among them, 7 species of nematodes were (Daptonema conicum, D. hirsutum, D. angulatum, Theristus sp. T. agillis, Vicosia sp. and Vicosia viscosia) dominated in all seasons.
Application/Improvements: They are involved in energy transfer through the ecosystem and are important link between primary producers and higher tropic levels in benthic systems. Even its contributions are very high in the aquatic environment and it is very limited works are available on distribution of marine nematode in Indian sub-continents.
Keywords
Nematodes, Domestic Wastages, Water Quality.References
- Z.A. Ansari, M.U. Ganus. A quantitative analysis of fine scale distribution of area, Parakkani, Tamil Nadu. International Journal of Environmental Science. 1996; 1(6), 2-10.
- P. Soundarapandian, T. Premkumar, G.K. Dinakaran. Studies on the physico- chemical characteristics and nutrients in the Uppanar estuary of Cuddalore, South east coast of India. Current Research Journal of Biological Sciences. 2009; 1(3), 102- 105.
- M. Prasannakumar, P.C. Ranjan. Physico chemical properties of water collected from Dharma estuary. International Journal of Environmental Science. 2010; 1(3), 334-342.
- A. Archana, K.R. Babu. Seasonal variations of physic-chemical parameters in coastal waters of Visakapatnam. Middle-East Journal of Scientific Research. 2013; 14(2), 161-167.
- M.V. Vincy, B. Rajan, P.A.P. Kumar. Water Quality Assessment of a Tropical Wetland Ecosystem with Special Reference to Backwater Tourism, Kerala, South India. International Research Journal of Environmental Sciences. 2012; 1(5), 62-68.
- J.S.I. Rajkumar, J.M.C. Milton, T. Ambrose. Seasonal variation of water quality parameters in Ennore estuary with respect to industrial and domestic sewage. International Journal of Current Research. 2011; 33(3), 209– 218.
- J. Rani, A. Kannagi, V. Shanthi. Correlation of total heterotrophic bacterial load in relation with hydrographical features of Pazhayakayal estuary, Tuticorin, India. Journal of Environmental Biology. 2012; 33(4), 769-773.
- S. Sajan, T.V. Joydas, R. Damodaran. Meiofauna of the western continental shelf Seasonal variation in physic-chemical properties and Seasonal variations of physic chemical characteristics. Science of the Total Environment. 2010; 4, 1-14.
- C. Palpandi. Hydrobiological parameters, population density and distribution pattern in the gastropod Nerita (dostia) crepidularia Lamarck, 1822, from mangroves of Vellar estuary, Southeast India. International Journal of Biodiversity and Conservation. 2011; 3(4), 121-130.
- M. Ellis. Detection and measurement of stream pollution. United States Fish Commission Bulletins. 1937; 22, 367-437.
- E. Padmini, B.V. Geetha. A comparative seasonal pollution assessment study on Ennore estuary with respect to metal accumulationin the grey mullet Mugi cephalus. Oceanological and Hydrobiological Studies. 2007; 34(4), 91-103.
- P. Fauvel. The fauna of India including Pakistan, Ceylon, Burma and Malaya. The Indian Press. 1953; 1-507.
- C. Heip, M. Vincx, G. Vranken. The ecology of marine nematodes. Oceanogr. Marine Biology: An Annual Review. 1985; 23, 259-263.
- A.D. McIntyre. Ecology of marine meiobenthos. Biological Reviews. 1969; 44(2), 245-290.
- M. Maduprathap. Status and strategy of zooplankton of tropical Indian estuaries. A Review Bulletin on plankton society of Japan. 1987; 34(1), 65-81.
- G. Sivaleela, K. Venkatraman. Free living nematodes of Tamil Nadu coast, India. Records of the Zoological Survey of India. 2013; 336, 1-45.
- S.N. Harkantra, A. Nair, Z.A. Ansari, A.H. Parulekar. Benthos of the shelf region along the west coast of India. Indian Journal of Marine Sciences. 1980; 9, 106-110.
- A.C. Harriague, G. Albertelli, C. Misic. Macro and meiofaunal community features in the critical environmental system of a tourist harbour (Rapallo, Ligurian Sea, NW Mediterranean). Marine Environmental Research. 2012; 74, 64-72.
- G. Chinnadurai, O.J. Fernando. Impact of mangrove leaves on meiofaunal density: an experimental approach. The ICFAI Journal of Life Sciences. 2007 ; 1(1), 62-70.
- J.G. Frederick, N.J. Maciolek. Deep-sea species richness; regional and local diversity estimates from quantitative bottom-sampling. The American Naturalist. 2000; 139(3), 13-41.
- J.D.H. Srtickland, T.R. Parsons. A practical hand book of seawater analysis. Fisheries research board of Canada. Bulletin. 1972; 167, 1-310.
- Changes of Physico-Chemical Parameters Due to the Seasonal Influence of Coastal Waters in Karaikkal Coast, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502, Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 9 (2017), Pagination: 1-6Abstract
Background/Objectives: Coastal waters are involving the dynamic process of marine environment. The physico-chemical parameters of water and sediment provide base for all life process of the living organisms. It is desirable factors to make an effective environment. Hence, the present work has been carried out the physico-chemical characteristics of Karaikkal coastal waters.
Methods/Statistical Analysis: Samples of water and sediment were collected from Karaikkal coastal waters for a period of one year from July’ 2016 – June 2017 to analyze various physico-chemical parameters in water and nutrient in sediments.
Findings: The maximum concentration of organic materials were received from the catchment area during monsoon season due to rainfall and fresh water inflow, etc. This trend of large amount of total organic carbon in sediment during monsoon could be attributed to the effluent discharge.
Application/Improvements: The amount of nutrients determines the potential fertility of the water masses and thus it is necessary to collect several data regarding their distribution and behavior in many coastal ecosystem.
Keywords
Coastal Water, Sediments, Physical Parameters, Nutrients.References
- Z.A. Ansari, M.U. Ganus. A quantitative analysis of fine scale distribution of area, Parakkani, Tamil Nadu. International Journal of Environmental Science. 1996; 1(6), 2-10.
- A. Archana, K.R. Babu. Seasonal variations of physic-chemical parameters in coastal waters of Visakapatnam. Middle-East Journal of Scientific Research. 2013; 14(2), 161-167.
- C. Palpandi. Hydrobiological parameters, population density and distribution pattern in the gastropod Nerita (dostia) crepidularia Lamarck, 1822, from mangroves of Vellar estuary, Southeast India, International Journal of Biodiversity and Conservation. 2011; 3(4), 121-130.
- G. Chinnadurai, O.J. Fernando. Impact of mangrove leaves on meiofaunal density: an experimental approach. The ICFAI Journal of Life Sciences. 2007 ; 1(1), 62-70.
- M. Ellis. Detection and measurement of stream pollution, United States Fish Commission Bulletins. 1937; 22, 367-437.
- P. Fauvel. The fauna of India including Pakistan, Ceylon, Burma and Malaya. The Indian Press. 1953; 1-507.
- J.G. Frederick, N.J. Maciolek. Deep-sea species richness; regional and local diversity estimates from quantitative bottom-sampling. The American Naturalist. 2000; 139(3), 13-41.
- S.N. Harkantra, A. Nair, Z.A. Ansari, A.H. Parulekar. Benthos of the shelf region along the west coast of India. Indian Journal of Marine Sciences. 1980; 9, 106-110.
- A.C. Harriague, G. Albertelli, C. Misic. Macro and meiofaunal community features in the critical environmental system of a tourist harbour (Rapallo, Ligurian Sea, NW Mediterranean). Marine Environmental Research. 2012; 74, 64-72.
- C. Heip, M. Vincx, G. Vranken. The ecology of marine nematodes. Oceanogr. Marine Biology: An Annual Review. 1985; 23, 259-263.
- M. Maduprathap. Status and strategy of zooplankton of tropical Indian estuaries. A Review Bulletin on plankton society of Japan. 1987; 34(1), 65-81.
- A.D. McIntyre. Ecology of marine meiobenthos. Biological Reviews. 1969; 44(2), 245-290.
- P. Soundarapandian, T. Premkumar, G.K. Dinakaran. Studies on the physico- chemical characteristics and nutrients in the Uppanar estuary of Cuddalore, South east coast of India. Current Research Journal of Biological Sciences. 2009; 1(3), 102- 105.
- M. Prasannakumar, P.C. Ranjan. Physico chemical properties of water collected from Dharma estuary. International Journal of Environmental Science. 2010; 1(3), 334-342.
- J.S.I. Rajkumar, J.M.C. Milton, T. Ambrose. Seasonal variation of water quality parameters in Ennore estuary with respect to industrial and domestic sewage. International Journal of Current Research. 2011; 33(3), 209– 218.
- J. Rani, A. Kannagi, V. Shanthi. Correlation of total heterotrophic bacterial load in relation with hydrographical features of Pazhayakayal estuary, Tuticorin, India. Journal of Environmental Biology. 2012; 33(4), 769-773.
- S. Sajan, T.V. Joydas, R. Damodaran. Meiofauna of the western continental shelf Seasonal variation in physicchemical properties and Seasonal variations of physic chemical characteristics. Science of the Total Environment. 2010; 4, 1-14.
- G. Sivaleela, K. Venkatraman. Free living nematodes of Tamil Nadu coast, India. Records of the Zoological Survey of India. 2013; 336, 1-45.
- J.D.H. Srtickland, T.R. Parsons. A practical hand book of seawater analysis. Fisheries research board of Canada. Bulletin. 1972; 167, 1-310.
- M.V. Vincy, B. Rajan, P.A.P Kumar. Water quality assessment of a tropical wetland ecosystem with special reference to backwater tourism, Kerala, south India. International Research Journal of Environmental Sciences. 2012; 1(5), 62-68.
- Seasonal Occurrence of Distribution and Diversity of Polychaete in Nagapattinam Coastal Water, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502 Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 9 (2017), Pagination: 1-4Abstract
Background/Objectives: Tropical coastal areas are characterized by dynamic seascapes which encompass interconnected ecosystems such as wet land, mangroves, sea grass beds and corals. These ecosystems provides are highly productive, aquatic and terrestrial biodiversity as well as for the functioning of economic sectors such as tourism and fisheries. The near shore waters are exhibiting the seasonal variations. Fresh water inflow is influence the nutrient cycle in environments.
Methods/Statistical analysis: The sediment samples was collected in Nagapattinam coastal waters from July’ 2016 – June 2017 to collect the polychaete and analyze the species distribution.
Findings: The total numbers (nos) of 80123 nos/ m² were distributed in this station. The total numbers of 42 polychaete species were recorded during the study period. All the 42 species were recorded in summer and minimum of 21 species were recorded at monsoon. Among them 9 species of polychaetes (Capitella capitata, Nereis virens, Polydora ciliata, Perinereis cultrifera, Eunice tentaculata, Terebellides stroemi, Amphinome rostrata, Syllis gracilis and Glycera alba) were dominated in all seasons.
Application/Improvements: Benthic macrofauna play an important role in the coastal ecosystems such as scavenging, biological indicator, nourishment and nutraceutical values for fin and shell fishes. Among this, the Polychaetes are predominant group among the macro-benthic forms. They are also often used as live feed for aquaculture industry and also bio-prospecting.
Keywords
Sediments, Polychaetes, Distribution, Diversity, Season.References
- K. Fauchald. The polychaete worms, definitions and keys to the orders, families and genera. Natural History Museum of Los Angeles County: Los Angeles, CA (USA), Science Series. 1977; 28, 1-188.
- A. Somaschini, M.F. Gravina, G.D. Ardizzone. Polychaete depth distribution in a Posidonia oceanica bed (rhizome and matte strata) and neighbouring soft and hard bottoms. P.S.Z.N.I: Marine Ecology. 1994; 15(2), 133-151.
- A.A. Karande. Use of epifaunal communities in pollution monitoring. Journal of Environmental Biology. 1991; 191-200.
- S.B. Choudhury, R.C. Panigrahy. Seasonal distribution and behavior of nutrients in the Greek and coastal waters of Gopalpur, East coast of India: Mahasagar-Bull. Nati. Inst. Oeanogr. 1991; 24(2), 91-88.
- P. Fauvel. The fauna of India including Pakistan, Ceylon, Burma and Malaya. The Indian press, Allahabad. Annelida. 1953; 1-507.
- T.H. Pearson, R. Rosenberg. Macrobenthic succession in relation to organic enrichment and pollution of the marine environment. Oceanography and Marine Biology - An Annual Review. 1978; 16, 229-311.
- K.A. Dafforn, B.P. Kelaher, S.L. Simpson, M.A. Colema, P.A. Hutchings. Polychaete richness and abundance enhanced in anthropogenically modified estuaries despite high concentrations of toxic contaminants. PLoS One. 2013; 8(9), 1-10.
- R. Sunilkumar. Biomass, horizontal zonation and vertical stratification of polychaete fauna in the littoral sediment of Cochin estuarine mangrove habitat, south west coast of India. Indian Journal of Marine Science. 2002; 31(2), 100-107.
- A. Willsie. Zonation de la macrofaune endogee de la matte d’herbier de Posidonia oceanica (L.) Delile. Rapp. Comm. int. Mer Medit. 1983; 28(3), 165-168.
- R.M. Anbuchezhian, S. Ravichandran, P. Murugesan, J.S. Serebiah. Assessment of soft bottom polychaetes diversity in Thondi, Palk bay, India. Journal of Environmental Biology. 2012; 33, 917-921.
- C. Fraser, P. Hutchings, J. Williamson. Long-term changes in polychaete assemblages of Botany Bay (NSW, Australia) following a dredging event. Marine Pollution Bulletin. 2006; 52, 997-1010.
- Impact of Observed Climate Change on the Classification of Agroclimatic Zones in India
Authors
1 India Meteorological Department, Shivajinagar, Pune 411 005, IN
2 India Meteorological Department, New Delhi 110 003, IN
Source
Current Science, Vol 117, No 3 (2019), Pagination: 480-486Abstract
The classification of agroclimatic zones in India was made in the 1990s for identifying priorities and developing strategies for location-specific and need-based research as well as overall agricultural development in the country. Long-term climatic parameters, particularly temperature and rainfall along with soil and crop information were used for the classification of agroclimatic zones. It has been documented with a fair degree of accuracy that overall climate is changing, particularly with respect to temperature over the Indian region. Thus it is anticipated that in the recent past, climate change may be reflected in the agroclimatic zones as well and ultimately affect the criteria of their classification based on climatic parameters. The objective of the present study is to examine the trends and spatial/temporal variability of temperature, rainfall, rainy days, and heavy rainfall in different agroclimatic zones of the country, which may help in better understanding of the further initiatives on reclassification of agroclimatic zones, if required. Using various long-term gridded data from 1985 and instrumental datasets starting from 1951 to 1980, studies have been made to observe changes in different components of the climatic variables, i.e. temperature and rainfall. It has been observed that there are significant changes in temperature and rainfall, both temporally and spatially, across India and there is a definite shift in temperature and rainfall patterns in the recent past compared to 1951–1980. It has also been inferred that there is a need to reconsider the classification of agroclimatic zones in India under the scenario of observed climate changes in the country.Keywords
Agroclimatic Zones, Classification, Climatic Parameters, Climate Change.References
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- Kothawale, D. R., Munot, A. A. and Krishna Kumar, K., Surface air temperature variability over India during 1901–2007 and its association with ENSO. Climate Res., 2010, 42, 89–104; doi:10.3354/ cr00857.
- Srivastava, A. K., Kothawale, D. R. and Rajeevan, M. N., Variability and long-term changes in surface air temperatures over the Indian subcontinent. In Observed Climate Variability and Change over the Indian Region, Springer, Singapore, 22 November 2016, 2017, 1st edn, pp. 17–36.
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