Informatics Publishing Limited

K. ChandraSekar , V. Ganesan

Abstract

The reproductive biology of Acacia nilotica (L.) Willd. ex Del. subsp. indica Benth. (Mimosaceae) is detailed by floral biology, phenology, pollen biology, stigma receptivity,breeding system, composition and relative abundance of flower visitors, time spent at flowers by pollinators and resource allocation. The percentage of pollen viability varied significantly (P<0.05) from 50% to 75%. The morning samples collected between 10.00 and 11.00 hours had significantly better viability (75 %) than the samples collected at 17.00 hour (50 %). 8% sucrose supplemented with boric acid 1000 ppm and gibberellic acid 500 ppm was found to be an ideal medium for enhanced pollen germination and pollen tube growth. The viability of pollen stored at 0°C was highest in comparison to the pollen kept at room temperature and at 4°C. A total of 17 flower visitors recorded in the study sites. Oxyrchis torandus had spent maximum time on flowers. The construction of each flower costed 0.00416 g, of these 48% of total allocation spent by attractive yellow colored stamens. The seed cost recorded as 44% of the total pod cost, while remaining 56% allocated to pack the seeds as well as to organize for effective dispersal.

Keywords

Acacia nilotica ssp. indica, Babul, Reproductive Biology

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K. N. Srinivasan ¹, V. Ganesan ², D. Roop Kumar ¹, K. S. Murti ¹, N. V. Rao ³

Affiliations
1 Geological Survey of India, Operations: Andhra Pradesh, Hyderabad, IN
2 Geological Survey of India, Operations: Tamil Nadu, Madras, IN
3 Geological Survey of India, Operations: Andhra Pradesh, Hyderabad

Abstract

The anorthosite of Sripuram is a syn - to late - tectonic concordant intrusive into the rocks of Khammam Schist Belt (KSB). Its major element Chemistry is comparable to Archaean anorthosites.

Keywords

Petrology, Anorthosite, Granulite, Khammam Schist Belt, Andhra Pradesh.

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Abhijeet Shrivastava ¹, Devejya Anand ¹, Dheeraj Kumar Mandal ¹, Babli Kumari ¹, Dig Vijay ², V. Ganesan ¹

Affiliations
1 Department of Electrical and Electronics Engineering, Dr. M.G.R. Educational and Research Institute, University, Chennai, Tamil Nadu, IN
2 Department of Electrical and Electronics Engineering, Dr. M.G.R. Educational and Research Institute, University, Chennai, Tamil Nadu, IN

Abstract

Majority of losses occur in the transmission and distribution network. Transfer of energy from the generating source to the consumers is accompanied by the losses. Placement of the shunt capacitors in the distribution system leads to reduction of power losses. Reduction of the power losses is important to increase the efficiency of the system. As the load in the system is varying the capacitor requires the switching property. This paper presents a method for reducing the losses associated with the reactive component, finding the best possible location for the placement of the capacitors and real time capacitor size at Jajang iron and manganese mines located at Odisha for supplying the reactive current to the system so that the annual cost is reduced and savings is initiated.

Keywords

Capacitor, Power Factor, Switching, SCADA.

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Himanshu Ranjan ¹, Tapan Kumar Mahana ¹, Pawan Kumar Mahto ¹, Munan Kumar Sharma ¹, Piyosh Kumar ¹, V. Ganesan ¹

Affiliations
1 Department of Electrical and Electronics Engineering, Dr.M.G.R University, Chennai, IN

Abstract

Our project is about to present a slate which is fully digitalized, it will be useful for school children so that we can monitor students practice level of respective subjects, that will helpful for parents also. This method will be useful to monitor the progress of students and also gives a clear examination of children level, and it also access the learning speed of the student, by a gentle touch basic practice of learning can be serve .That may also increase the discipline and grasping power of the children. It will also increase the interest towards the study. This project works on the embedded system that involves Mini2440 arm microprocessor and PIC16F73 microcontroller. So many languages can also be used; it is low power consumption device.

Keywords

Micro Controllers (16F73), Touchscreen, MMC Card, GLCD, LED Indicator.

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V. Ganesan ¹, Nilesh P. Tekade ², Nitin S. Bhajipale ³, Durgesh R. Dewade ³, Raju R. Thenge ⁴

Affiliations
1 Swami Vivekananda College of Pharmacy, Elayampalayam-637 205, Tiruchengode, Namakkal, Tamilnadu, IN
2 S.G.S.P.S. Institute of Pharmacy, Kaulkhed, Akola 444004 (MS), IN
3 S.G.S.P.S. Institute of Pharmacy, Kaulkhed, Akola 444004, Maharashtra, IN
4 I.B.S.S College of Pharmacy, Malkapur 443101, Buldana, Maharashtra, IN

Abstract

Mucoadhesive tablets of Lorsatan Potassium were prepared using carbopol-940P, Sodium carboxy methyl cellulose (SCMC), hydroxy propyl methyl cellulose (HPMC), ethyl cellulose (EC) and Eudragit-RL100 as mucoadhesive polymers. Eight formulations were developed with varying concentrations of polymers. The SCMC is used as a primary polymer because of its excellent mucoadhesive property and secondary polymers like HPMC, EC, Carbopol-940P and Eudragit RL-100 were used. The formulations were evaluated for in-vitro drug release, in-vitro swelling studies and in-vitro bioadhesive strength studies. Formulation R-03 showed maximum release of 95.68% in 10hours and maximum swelling index of 99.59 % after 10hours, also showed highest bioadhesion. FTIR studies show no evidence on interaction between drug and polymers. The results indicate that suitable mucoadhesive tablets with desired properties could be prepared.

Keywords

Mucoadhesive Tablets, Losartan Potassium, Swelling Index, FT-IR, Drug Release.

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V. Ganesan ¹, K. Shanmugam ¹, V. Balasubramanian ¹

Affiliations
1 Centre for Materials Joining & Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar-608002, IN

Abstract

The Austenitic Stainless Steels (ASS) are probably the most widely used materials in stainless steels, category AISI 304L is an important grade of the ASS, which is commonly used in many of important industries such as containers of transporting chemicals, oil refinery, nuclear reactor tanks, dairy industries, and textile industries. Currently, 304L Austenitic stainless steel sheets are used as fuel tanks in Armour Fighting Vehicle (AFV). These tanks are fabricated by conventional Tungsten Inert Gas (TIG) welding process. In conventional welding, fusion zones typically exhibit coarse columnar grains because of the prevailing thermal conditions during weld metal solidification. This often results in inferior weld mechanical properties. Interpulse Tungsten Inert Gas (IPTIG) welding is a new variant of conventional Tungsten Inert Gas (TIG) welding process. This process offers many advantages over conventional TIG welding process such as narrow heat affected zone, deeper penetration compared to Constant Current TIG (CCTIG) and Pulsed Current TIG (PCTIG) welding processes. The present investigation was carried out to understand the effect of arc pulsing technique on cross sectional weld bead profile, micro hardness, microstructure and the tensile properties of welded joints. It is found that IPTIG welded joints showed superior mechanical properties compared to CCTIG and PCTIG joints, and this is mainly due to formation of finer grains in the fusion zone, caused by the combined effect of arc constriction and pulsating action.

Keywords

Tungsten Inert Gas, Austenitic Stainless Steel, Interpulse TIG Welding, Tensile Properties, Microstructure.

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