Informatics Publishing Limited

S. Suresh ¹, Damanjit Sandhu ²

Affiliations
1 Department of Psychology Annamalai University, Annamalainagar, Chennai, IN
2 Department of Psychology Punjabi University, Patiala, Punjab, IN

Abstract

The possession and demonstration of good social skills bring about positive social consequences, whereas a lack of social skills is associated with negative social outcomes. The importance of these social outcomes lies in their obvious connection to apositive or negative state of psychological wellbemg. The primary goal of this study was to explore that positive relation with other people would mediate the association between social skills and psychological well-being. This study adopted survey design; the data was collected from the sample of 110 college students. The self-report instruments used to collect the data were the measures of social skills, positive relations with others, and psychological well-being. Results indicate that social skills positively associated with psychological well-being. Social skills were also strongly associated with positive relations with others. Positive relations with others proved to mediate the association between social skills and psychological well-being.

Keywords

Social Skills, Well-Being, Positive Relations.

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S. Suresh ¹

Affiliations
1 Department of Psychology, Annamalai University, Annamalainagar, IN

Abstract

Bullying is a complex behavior that can cause academic and social problems for students and can contribute to a negative school climate. However, research on the impact that relationships and school connectedness may have on bullying victimization at school is limited. Present study investigated the link between bullying victimization and school connectedness. This study is a secondary analysis of the data collected for a major research project. The study was designed to investigate the middle school students' bullying victimization. 450 students (263 boys and 187 girls), 11 to 14 years old, participated in the study they were belongs to 6th, 7th and 8th grades of the government schools ofTamil Nadu. The study used correlation analyses to confirm relationship between variables. Findings indicate that students who are the victims of bullying perceive less school connectedness than non-victims. Gender was significantly related to school connectedness and victims of social or relational bullying. This study has implications for school-based bullying prevention, and points to the utility of involving teachers and students in efforts to decrease and prevent bullying.

Keywords

Bullying Victimization, School Connectedness.

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D. Seenivasan ¹, S. Suresh ¹

Affiliations
1 Department of Computer Science and Engineering, K. S. Rangasamy College of Technology, Tiruchengode, Tamil Nadu, IN

Abstract

The cloud computing provides the resources to the cloud consumers via the internet. The cloud provider provides two types of provisioning for accessing resources such as Advance reservation and on-demand plans to the cloud users. On-demand users should pay as pay-per-use basis. On-demand users should pay more cost than advance reservation plan. A stochastic programming model which considers a set of scenarios such as price, demand, storage, and dynamic allocation is used for the resource provisioning for reservation plans in cloud computing. The uncertainty problem deals with a large set of scenarios for the real time problems. A huge set of scenarios consideration leads to more consumption of time and computational complexity. A scenario reduction technique, particle swarm optimization (PSO) is applied to reduce the scenarios and provides a lesser set of scenarios. Security can be provided while consumer send data to the cloud provider by using advanced encryption standard (AES) algorithm.

Keywords

Resource Provisioning, Scenario Reduction, On-Demand, Dynamic Allocation.

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S. Suresh ¹

Affiliations
1 V.L.B. Janakiammal College of Engineering and Technology, Coimbatore, IN

Abstract

This paper presents an optimized technique for Brain tumor detection from MR Images. The proposed system consists of two phases, namely, feature extraction and detection. In two steps the efficient techniques are used to increase the accuracy of the system so that to reduce the number of false detection. In feature extraction the texture features are extracted which shows better performance in various diagnoses. The classifiers detect the timorous image based on features. Here the classifier fusion system is used which is formed using more number of classifiers. The K-nn, SVM and ANN classifiers are used in classifier fusion system. The results show that this system has higher efficiency when compared to other system.

Keywords

MRI, Texture, GLCM, Classifier Fusion, K-NN Classifier, ANN, SVM.

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S. Krishnakumar ¹, N. Singaravelu ¹, C. Kumaravelu ¹, S. Suresh ¹

Affiliations
1 Combat Vehicles Research and Development Establishment, Defence Research and Development Organization, Ministry of Defence, Avadi, Chennai-600054, IN

Abstract

This paper details the air flow characteristics of the louvers of air intake system in armour fighting vehicles. An attempt is made to optimize the louver configuration to meet the requirements of protection and Airflow characteristics without increasing the vehicle volume and with modifications wherever possible. Pressure drop tests on S type of louvers were undertaken in the existing air intake system of Armour Fighting Vehicles for various configurations.

Keywords

Armour Fighting Vehicle, Louvers, Air Intake System, Air Filters, Pressure Drop.

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K. Shanij ¹, V. P. Praveen ¹, S. Suresh ¹, Mathew M. Oommen ², T. S. Nayar ¹

Affiliations
1 Division of Conservation Biology, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram, 695 562, IN
2 University of Kerala, Kariavattom, Thiruvananthapuram 695 581, IN

Abstract

Parasesarma plicatum, a common sesarmid crab in mangrove habitats of India, always climbs onto the mangrove vegetation during high tide. We studied whether this temporal niche shifting of the crab is an anti-predatory strategy against potential predators that invade their habitat during high tide. We studied the difference in density of this crab on the forest floor and vegetation during low and high tides in three selected study sites. Ex situ experiments were also conducted using the crab and a predatory fish simulating the habitat. The study confirmed that all the crabs climbed onto the vegetation from the forest floor during high tide and came down to the forest floor during low tide. Regression analysis revealed a positive correlation between water level and the height climbed by crabs on vegetation. Crabs completely migrated from sites which were fully submerged during high tide to nearby areas where mangrove trees and the shrub Acanthus ilicifolius provided them ample refuge above water level. Ex situ experiments showed that though P. plicatum could remain under water and feed in starved conditions, they climbed onto the vegetation above water level so as to seek refuge in the presence of predatory fish, Lutjanus argentimaculatus. Therefore, it is inferred that the tree-climbing character exhibited by P. plicatum is a strategy to escape from predators that invade their habitats during high tide inundation and flooding.

Keywords

Anti-Predatory Strategy, Mangrove, Parasesarma plicatum, Temporal Niche Shifting, Tree Climbing.

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K. Shanij ¹, V. P. Praveen ¹, S. Suresh ¹, Mathew M. Oommen ², T. S. Nayar ¹

Affiliations
1 Division of Conservation Biology, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram 695 562, IN
2 University of Kerala, Kariavattom, Thiruvananthapuram 695 581, IN

Abstract

Nutrient cycling in mangrove forests is strongly linked to detrital processing of leaf litter, as compared to direct herbivorous consumption. Sesarmid crabs play a key role in detrital pathways in mangrove forests by processing a large amount of leaf litter produced in the ecosystem. We studied the rate of leaf litter translocation and consumption by a sesarmid crab, Neosarmatium malabaricum, through an ex situ experiment simulating field conditions. We supplied weighed senescent leaves of Aegiceras corniculatum, Avicennia officinalis, Excoecaria agallocha and Rhizophora mucronata to the crab. When provided separately, the crab translocated leaf litter of E. agallocha the maximum, and that of Rhizophora mucronata the minimum to the burrows. When litter mixed together was provided, the rate of translocation was the highest. The crabs consumed up to 80.24% of the litter that they translocated. We found this species capable of translocating 4.39 ±1.68 g of leaf litter m^-2 per day and that its population had the potential to translocate 1.81 times more leaf litter than the ecosystem produced, based on comparisons of translocation rate, density of N. malabaricum and leaf litter production in the study area. Our experiments emphasize the key role played by this crab in detrital pathways of mangrove ecosystem.

Keywords

Aegiceras, Avicennia, Detrital Pathways, Excoecaria, ex Situ Experiments, Leaf Litter Translocation, Mangroves Crabs, Neosarmatium malabaricum, Nutrient Cycling, Rhizophora.

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S. K. Uma Devi , R. Thiruganesh , S. Suresh

Abstract

The present study objective was to develop novel colon specific drug delivery systems for aceclofenac using chitosan as a microbially degradable polymeric carrier and to coat the optimized batches with a pH dependent polymeric coating solution containing Eudragit L 100 and S 100 (1:4). Tablets containing four proportions of chitosan were prepared. The tablets were evaluated for physicochemical properties, drug content, dissolution, water uptake & erosion characteristics, in vitro drug release studies. The amount of aceclofenac released from the chitosan tablets at different time intervals was estimated by UV spectrophotometric method at 275nm. Eudragit coated Chitosan tablets prevented release of the aceclofenac in the physiological environment of stomach and small intestine depending on the proportion of chitosan used in the formulation. The dissolution profile and in vitro release kinetics showed that chitosan tablets were promising for controlled delivery of the drug. The findings of the present study conclusively state that chitosan tablets are promising for colon targeting of aceclofenac to synchronize the chronobiological symptoms for effective treatment of rheumatoid arthritis.

Keywords

Aceclofenac, Chitosan, Eudragit Coating, Targeted Delivery, Colon Targeting, In Vitro Dissolution.

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S. Suresh ¹, H. Duttarajan ¹

Affiliations
1 Welding Research Institute, BHEL, Tiruchirapalli-620 014, IN

Abstract

Obtaining better quality products in larger quantity at a lesser cost is the best way to achieve higher productivity. For the past two decades, we have been seeing explosions in the use of new welding processes and the associated techniques. Now, there are not less than three or more number of acceptable alternative welding techniques to make a product. This increase in the variety of welding processes together with the general movement towards more sophisticated methods of production, accounting and control has led to a gradual change in emphasis in the decision making process from a simple selection of the welding process which is technically the most satisfactory, to the one which is also the most economical in a given situation. This clearly reveals the interrelationship between productivity and economy.

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S. Suresh ¹

Affiliations
1 Krishii Vigyan Kendra, Horticultural Research Station, Tamil Nadu Agricultural University, Pechiparai (T.N.), IN

Abstract

The toxicity of Fe occurs mainly in poorly drained inland valleys often with lateral seepage and or upwelling Fe containing water, coastal saline-acid soils, peat soils, acid sulphate soil and other hydromorphic soils and others. Surface soil samples(0 – 20 cm depth) were collected from rice fields in the areas of the soils prone to varying degree of Fe toxicity in the high rainfall zone of Tamil Nadu and analysed for their physico-chemical characteristics. The Aquic Hapludalf recorded 62.5 per cent of the samples with > 40 mg/kg of water soluble Fe followed by Udic Rhodudalf (52.6%). The upwelling ground water caused the accumulation of Fe and subsequent precipitation resulted in the presence of reduce brown scum of iron oxides and hydroxide on the surface of the soil particularly along the border of the field. Fe accumulation also induced deficiency of P,K, Zn and bases viz., Ca and Mg.

Keywords

Physico-Chemical Characteristics, Fe-Toxic Soils.

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S. Suresh ¹, R. Swarna Piria ¹

Affiliations
1 Krishi Vigyan Kendra, Horticultural Research Station, Pechiparai, Kanyakumari (T.N.), IN

Abstract

In rice ecosystem about 60-70% of the applied nitrogen got lost due to different losses viz., leaching, volatilization etc. The increase in nitrogen use efficiency by 1% will lead to a substantial increase in rice productivity. Therefore a field experiment was conducted to study the effect of different product of neem based nitrification inhibitors to increase the nitrogen use efficiency along with the recommended practice of inorganic N application in rice during Pishanam 2003-04. The study on the effect of nitrogen source on the yield parameters, yield, nutrient uptake and B-C ratio of rice in Tamirabarani tract revealed that the application of 120 kg N/ha as neem coated urea in 3 splits recorded the highest plant height, number of tillers/plant, productive tillers/plant (13.9) and the grain (7.59 t/ha) and straw (11.5 g/ha) yields, total uptake of N (93.4 kg/ha), P (26.0 kg/ha) and K (132 kg/ha) and B-C ratio of 1.21 rupees per rupee invested in rice (var. ADT 39). Although the nitrogen use efficiency was found marginally lower (13.9) in neem coated urea at 120 kg/ha than the application of 96 kg N/ha (80% of the recommended N) as nimin coated urea in 3 splits (15.1), the highest B-C ratio of 1.61 rupees per rupee invested was recorded over the normal recommended practice of applying urea at the rate of 120 kg N/ha in 3 splits (1.00) and found economically viable.

Keywords

Rice, Bio-Efficacy, Neemcake Coated Urea, Yield, Nutrient Use Efficiency.

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S. Suresh ¹

Affiliations
1 Krishi Vigyan Kendra, Horticultural Research Station, Pechiparai, Kanyakumari (T.N.), IN

Abstract

Field experiment was conducted in flooded valley Fe toxicity polluted coastal acid soil of the high rainfall zone of Tamil Nadu state in India to determine the effect of application of nutrients with and without lime (9.6t/ha) (to bring pH to neutral range) on the changes in soil fertility status and yield of wetland banana. The results showed that the soil pH, availability of major nutrients, hot water soluble B and yield of bunch increased, while all forms of Fe got appreciably reduced for liming. Although the application of fertilizers played significant role in masking the toxicity pollution of excess Fe, the soil application of lime, N, P and K together with foliar spray of multinutrients (1%Diammonium phosphate, 1% Muriate of potash, 0.5% ZnSO4, 0.2% CuSO4 and 0.2% borax) thrice at early and late vegetative stages and inflorescense initiation stage accounted highest bunch yield of 39.4 t/ha besides without expression of any toxicity pollution symptoms.

Keywords

Wetland Banana, Iron Toxicity, Yield, Soil Properties.

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S. Suresh ¹

Affiliations
1 Krishi Vigyan Kendra, Tamil Nadu Agricultural University, Pechiparai, Kanyakumari (T.N.), IN

Abstract

Experiments were conducted in five farmers holdings at Puthalam village consecutively from 2006-07 to study the effect of ischolar_main feeding of coconut tonic on nutrient concentration and yield of coconut. The soil was sandy loam in texture. The soil had a pH range of 7.7 to 8.0, EC of 0.41 to 0.90 dS m^-1, organic C 0.2 to 0.3 %, available N 78 to 88 kg/ha, available P 7.0 to 8.0 kg/ha, and available K 108 to 130 kg/ha. The treatments were: T₁:Control (Co fertilizers), T₂:Recommended chemical fertilizers (1.3 kg urea, 2.0 kg SSP and 2.0 kg muriate of potash), T₃:Root feeding of TNAU tonic without soil application of recommended chemical fertilizers, T₄:ischolar_main feeding of coconut tonic and soil application of recommended chemical fertilizers. The palm west coast tall was tested. In each treatment 35 palms were tested and mean yield/tree/harvest was recorded. The soil application of recommended N, P, K and ischolar_main feeding of coconut tonic resulted in highest K content (1.42 to 1.48%) compared to the other treatments. produced significantly more number of nuts (71.2 and 73.5 nuts/palm/year) compared to other treatments during 2007 and 2008, respectively. This was followed by the ischolar_main feeing of TNAU coconut tonic alone (64.1 and 66.6 nuts/palm/year). The lowest yield was recorded in the control (48 and 48.2 nuts/palm/year, respectively).

Keywords

Coconut, Fertilization, Soil, Tonic, Yield.

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A. B. Sreebha ¹, S. Suresh ¹, C. O. Sreekala ², V. P. Mahadevan Pillai ¹

Affiliations
1 Department of Optoelectronics, University of Kerala, Thiruvananthapuram 695 581, IN
2 Department of Physics, Amrita Vishwa Vidyapeetham University, Amrithapuri, Kollam 690 525, IN

Abstract

A transmission holographic grating with good storage life and diffraction efficiency is fabricated in an indigenously prepared red-sensitive photopolymer. Stability retained by the photopolymer transmission holographic grating in its diffraction efficiency upon long-term exposure to temperature indicates the suitability of the fabricated photopolymer holograms in solar applications. Holographic elements diffract different wavelengths to different regions and dye sensitized solar cells (DSSCs) can absorb the desired range of wavelengths from the diffracted light. Hence, we exploit this property of the holographic grating to enrich the performance of DSSCs by enhancing its input and output power, particularly under low photometric conditions. Improvement in maximum power output of DSSCs is observed in all cases, with a maximum enhancement of about 100% for the lowest level of input intensity.

Keywords

Diffraction Efficiency, Dye Sensitized Solar Cells, Photopolymer, Transmission Holographic Grating.

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S. Sivakumar ¹, S. Rajesh ¹, P. Pradeep ¹, S. Suresh ¹

Affiliations
1 Department of Mechanical Engineering, Kumaraguru College of Technology, Coimbatore, IN

Abstract

The need for finding renewable sources of energy together with the necessity of searching for new technologies to reduce the negative impact of waste accumulation has led to the possibility of using biomass as an alternate fuel, especially in electric utilities. Most of the industrial sources of pollution come from coal-fired power plants, which necessitate the need to find ways to decrease the Greenhouse gas emissions from these. Also, the ratification of the Kyoto Protocol and the tightening environmental regulations means that by the year 2008, countries would need to implement measures to meet these standards. One of the options that need to be considered is the application of cofiring technologies to coal fired power plants. In this paper, we seek to review the various cofiring technologies available and also at the methods by which these standards could be met.

Keywords

Cofiring Technologies, Greenhouse.

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