Analysis of Feed force, Tangential Force and Surface Roughness in Turning EN-353 Steel using uncoated ceramic cutting tool using Taguchi Method

The aim of the present paper is to investigate the effects of process parameters (cutting speed, feed rate and depth of cut) on performance characteristics (feed force, tangential force and surface roughness) in turning of EN-353 steel using uncoated ceramic cutting tool inserts. Experiments are designed and conducted based on Taguchi L9 orthogonal array carried out under dry cutting conditions for feed force, tangential force and surface roughness. The responses such as feed force, tangential force and surface roughness were recorded for each experiment. The depth of cut was identified as the most influential process parameters in the responses of both feed force and tangential force. The feed rate was identified as the most influential process parameter on the surface roughness

Chip equalized adaptive rake receiver for DS-CDMA UWB systems

Conventional Rake receiver is a popular and effective method of utilizing the diversity offered by a DS-CDMA and multipath communication channel. The proposed Rake receiver is useful for suppression of multiple access interference in a multipath channel. The receiver works on chip level equalization on each Rake finger to cancel multi-access interference. Simulation results show that the convergence, diversity gain and bit error probability performance of the proposed receiver is much better than conventional adaptive Rake receiver in multipath channels

Frequency and time hopping PPM UWB multiple access communication scheme

In this paper we propose frequency and time hopping pulse position modulation (FTH-PPM) ultra wideband (UWB) for multiple access communications.We have derived and investigated the bit error probability for the multi-user synchronous transmitter case in multipath channels with Additive White Gaussian Noise (AWGN). Simulation results show that bit error probability performance of FTH-PPM UWB out performs the time hopping pulse position modulated (TH-PPM) UWB system. It also show that multiuser capacity of FTH-PPM UWB system is much better than TH-PPM UWB system

2nd Zonal Workshop on Fisheries and Aquaculture Policy: Ecosystem and Livelihood Perspectives in East Coast States

2nd Zonal Workshop on Fisheries and Aquaculture Policy: Ecosystem and Livelihood Perspectives in East Coast States Andhra Pradesh, Andaman & Nikobar Islands, Orissa. Pondichery, Tamilnadu and West Bengal Hyderabad 22-24 March, 2007 (CIFE, MUMBAI

USE OF LIBRARY AND INFORMATION RESOURCES IN SELECTED PHARMACY COLLEGES OF KARNATAKA

The purpose of this paper is to analyse the use of library resources by students and faculty members in selected pharmacy colleges of Karnataka. This study adopted survey method and questionnaire tool used to collect primary data from the respondents. A well-structured questionnaire has been circulated among 691 faculty members and students whereas 686 respondents were responded. Based on the findings, this study recommended that, libraries need to take necessary steps in order to visit users on daily basis; library should attract users to use variety of resources other than books and periodicals. Library should promote the use of documents such as Audio-visual material, e-resources and theses and dissertations etc. The study also recommended that, the library need to procure relevant documents in order to support their curriculum, and need to arrange the documents in a helpful manner. Libraries need to purchase sufficient numbers of multiple copies; library professionals should assist the users and need to give proper orientation to use various resources and services. Further, this study suggested the college authority should change their policy to keep the library in open access and must provide state- of- art ICT tools to the library

CORRELATION AND PATH COEFFICIENT ANALYSIS IN LINSEED (LINUM USITATISSIMUM L.)

The present study was conducted on variability, correlation and path coefficient analysis for yield and yield contributing characters in linseed. The highest genotypic coefficient of variation was observed for 1000 seed weight (29.48) and high heritability coupled with high genetic advance was observed for 1000 seed weight (0.99 and 60.45) and seed yield (0.85 and 35.40). The results of phenotypic and genotypic correlation analysis revealed that number of capsules plant-1 (0.797 and 0.704), was significantly and positively correlated with seed yield and plant height (0.2 and 0.192) and technical plant height (0.204 and 0.198) was positively correlated with seed yield in present material. Path analysis indicated that number of capsules plant-1 (0.7615) exhibited high direct positive effect on seed yield signifying the importance of this trait while selecting for improvement of seed yield of linseed

Farmer to Farmer Spread of Fodder Crops--An Analysis on Mango Orchards in South India

India ranks first among world mango (Mangifera indica L.) producing countries, accounting for about 50% of world production. Karnataka in southern India is one of the important mango producing provinces of the country. The total area under mango crops in Karnataka is 160,000 ha of which 90,000 ha is in prime fruit yielding stage. In the year 2011-12 alone the area under mango crops has gone up by 10,000 ha (DoH, 2013). The usual planting distance followed by most farmers for mango is 10 m by 10 m. Intercropping, mainly with small millet is practiced until the mango trees attain a suitable height and develop canopy (at 5-6 years of age). The space between the mango tree rows which is not cultivated is estimated to be 67,500 ha (75%) and this provides ample scope for introduction of improved fodder crops in mango orchards through non-competitive land use. Formal methods of diffusion of fodder technologies in India are not only few but are also inefficient. In such cases diffusion can be enhanced through participation of farmers (Kormawa et al., 2004). However farmer to farmer dissemination of technologies is a neglected area of research (Grisley, 1994). A study on diffusing fodder technologies in interspaces of mango orchards of farmers in a participatory mode was conducted in Karnataka. One objective was to develop a method to improve the fodder availability using mango orchards by encouraging farmers to be partners for better feeding of livestock in the region

Current Status of Stylosanthes Seed Production in Southern India

India is a significant producer of Stylosanthes (stylo) seed (principally S. hamata). Most of this seed is produced by villagers and small farmers in the Anantpur district, Andhra Pradesh, southern India. This is one of the poorest regions in the State, with harsh climatic conditions, poor, zinc-deficient soils, and (in the stylo seed production area) farm sizes averaging less than 2 ha. Marketing is handled by an informal network of seed traders who distribute stylo seed within a 25-30 km radius and, via the next level of traders, to other parts of India. A survey of seed production in this area in 2002/03 indicated that stylo seed production in 2001 was about 800 t from more than 400 ha (Rao et al. 2004). A second survey, conducted in 2012, showed that the stylo seed production area had declined to 150 ha, and that annual seed production had declined to about 300 t. Most of the decline had occurred since 2007, when the purchase of seed for watershed rehabilitation in the States of Karnataka and Andhra Pradesh was discontinued. In addition to the loss of this major market, other factors influenced the reduction in stylo seed production. These included the low price of stylo seed compared with groundnut (the crop mainly competing for land use); sales of land for other purposes, and diversion of one area as a Special Economic Zone; reduced availability and increased costs of labour, particularly after the establishment in 2005 of the National Rural Employment Guarantee Agency (NREGA) which provided an attractive employment option for rural workers; lack of technical support; and, in one case, delays in payment. Poor seed quality is another issue constraining prices. Despite these challenges, many farmers in the region remain positive and would continue to produce stylo seed if profitability could be improved

Effect of Plant Growth Regulators on Leaf Biochemical Characters and Fruit Yield Components of Bittergourd (Momordica charantia L.) Cvs. MHBI-15 and Chaman Plus

Effect of plant growth regulators on leaf biochemical parameters (chlorophyll pigments, sugars, nitrate reductase activity, total phenols) and fruit yield bitter gourd (Momordica charantia L.) was studied. The experiment consisted of foliar treatment with three plant growth regulators, GA3 (20, 40 and 60ppm), NAA (50ppm) and CCC (100 and 200ppm) in two bittergourd varieties, MHBI-15 and Chaman Plus at 45 days after sowing (DAS). Results revealed significant difference between treatments on chlorophyll, sugar, total phenol content as also on nitrate reductase activity. Foliar application of CCC (200ppm) recorded maximum amount of total sugars (18.03% over Control), total phenol content (10.93%) as also nitrate reductase activity (16.12%). Among the treatments, application of GA3 (20ppm) recorded maximum chlorophyll content (18.03% over Control). Highest increase in mean fruit yield over Control was recorded with application of GA3 (20ppm) (39.88%), followed by CCC (200ppm) (34.15%) in both the cultivars