• Title/Summary/Keyword: Korea, India

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Degradation of Anthracene by a Pseudomonas strain, NGK1

  • Shinde Manohar;Kim, Chi-Kyung;Tim
    • Journal of Microbiology
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    • v.37 no.2
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    • pp.73-79
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    • 1999
  • Pseudomonas sp. NGK1, isolated by naphthalene enrichment culture technique, is capable of degrading anthracene as a sole source of carbon and energy. The organism degraded anthracene through the intermediate formation of 1,2-dihydroxyanthracene, 2-hydroxy-3-naphthoic acid, salicylate, and catechol. The intermediates were isolated and characterized by TLC, spectrophotometry, and HPLC analysis. The cell free extract of anthracene-grown cells showed activities of anthracene dioxygenase, 2-hydroxy-3-naphthylaldehyde dehydrogenae, 2-hydroxy-3-naphthoate hydroxylase, salicylate hydroxylase and catechol 2,3-dioxygenase. The formed catechol as a metabolite is degraded through meta-cleavage with the formation of ${\alpha}$-hydroxymuconic semi-aldehyde.

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Strategy to Control Surface Fire using Vegetational Fire Breaks in Rangelands of Nilgiris, Southern India

  • Paulsamy, S.;Kil, Bong-Seop;Arumugasamy, K;Padmathy, S.
    • The Korean Journal of Ecology
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    • v.26 no.5
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    • pp.251-254
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    • 2003
  • To control the spread of surface fire in the rangelands and to check the entry of fire into forest systems from grassland patches, 26 evergreen / succulent species were selected and among them 3 shrubby species such as Berberis tintoria Lesch, Elaeagnus kologa Schlecht and Rhodomyrtus tomentosa Wt. were screened for vegetational fire breaks on the basis of leaf moisture content and some other ecological characters. The fire trail experiments indicate that crossing of fire was checked by the fire belt size of 5 ${\times}$ 1.5m for all the three species. However, due to higher fire retardant capacity, the Ire belt of R. tomentosa was effective in comparison to other two species.

Comparative Histomorphology on Low and High Rubber Yielding Guayule Varieties of India

  • Jayabalan, Marimuthu;Rajarathinam, Kaniappanadar;Jayakumar, Muthukrishnan;Kil, Bong-Seop
    • The Korean Journal of Ecology
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    • v.24 no.6
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    • pp.381-384
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    • 2001
  • A preliminary comparative histodimensional studies, such as wood to bark ratio, total area of parenchyma cells and bast fibers, height and diameter of vascular rays, pith diameter and phenological parameters, height of the plant, perimeter of the stem, dry weight of the stem and leaves have been investigated for the low and high rubber bearing Guayule plants growing in same and different climatic regions of India. A plausible correlation is found between the percentage of rubber content and anatomical characters in the investigated varieties.

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The pattern of precipitation in the summertime on the North Pacific High Pressure System in the Northeastern Asia (동아시아의 북태평양 고기압 연변의 하계 강수 패턴)

  • 윤홍주;류찬수
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2003.05a
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    • pp.334-337
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    • 2003
  • The results of this numerical model is usable to analysis for the phenomena of precipitation during the periods of a rainy season in the Northeastern Asia. Case l(start of rainy season) dominates over precipitation by the processing of convection from the equator region through the East China region, and then the most of water vapor is transported by the processing of advection from the India-monsoon region to this study region. Case 2(heavy rainy season) faints precipitation by the processing of convection in the Korean peninsula, but dominates precipitation by the processing of microphysics. the water vapor originates from the India-monsoon region.

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ESTIMATION OF NET GROUND WATER RECHARGE IN LARGE AQUIFER SYSTEMS BY GENETIC ALGORITHM: A CASE STUDY

  • K. Lakshmi Prasad;A. K. Rastogi
    • Water Engineering Research
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    • v.2 no.3
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    • pp.161-169
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    • 2001
  • Present study deals with the development of a numerical model for the estimation of net annual recharge by coupling the Galerkin's finite element flow simulationl model with the Gauss-Newton-Marquardt optimization technique. The developed coupled numerical model is applied for estimating net annual recharge for Mahi Right Bank Canal (MRBC) project the norms of Groundwater Resources Estimation committee (1984, 1997) and Indian Agricultural research Institute(1983). It is observed that the estimated net recharge by inverse modeling is closer to the net recharge estimated using the water balance approach. Further it is observed that the computed head distribution from the estimated recharge agree closely with the observed head distribution. The study concludes that the developed model for inverse modeling can be successfully applied to large groundwater system involving regional aquifers where reliable recharge estimation always requires considerable time and financial resources.

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Students' Perspective (Stream Wise) of Parameters Affecting the Undergraduate Engineering Education: A Live Study

  • Kumari, Neeraj;Kumar, Deepak
    • Asian Journal of Business Environment
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    • v.6 no.1
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    • pp.25-30
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    • 2016
  • Purpose - The study aims to examine the students' perspective (stream wise) of parameters affecting the undergraduate engineering education system present in a private technical institution in NCR, Haryana, India. Research design, data, and methodology - It is a descriptive type of research in nature. Questionnaire Based Survey has been used to collect the data. The sample size for the study is 500 comprising of the students respondents. The sample has been taken randomly and the questionnaire was filled by the students (pursuing B. Tech) chosen on the random basis from a private technical educational institution in NCR, Haryana, India. For data analysis and conclusion of the results of the survey, statistical tool like F test was performed with the help of high quality software; SPSS. Conclusion - Analysis of variance revealed statistically no difference between the mean number of the groups (stream wise) for the parameters "Selection", "Academic Excellence", "Infrastructure", "Personality Development and Industry Exposure" and "Management and Administration". While Analysis of variance revealed statistically difference between the mean numbers of the groups for the parameter "Placements".

Urban sprawl and its impact on the land cover-a geospatial study

  • Jayakumar, S.;Enkhbaatar, Lkhagva;Heo, Joon
    • Journal of Korean Society for Geospatial Information Science
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    • v.16 no.4
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    • pp.73-78
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    • 2008
  • The present study was aimed to estimate the urban sprawl in a historical city of India using series of satellite data between 1968 and 2005(37 years) and GIS. The total area of the Tiruchirappalli city was 1991.96 ha during 1968 and it was expanded into 4335.98 ha(117.67%) during 2005. The average growth rate per year was 63.35 ha. This 117.67% growth was at the cost of agriculture land(97.81%) and water body(2.19%). The satellite data used in this study were found to be good source of information for this kind of analysis and further studies are need to estimate the impact of this city expansion on agriculture yield and ground water.

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Impact of Surface Fire on the Dynamics of$N_2$- Fixing and P - Solubilizing Microbial Population in Natural Grassland Soils, Southern India

  • Manian, S.;S. Paulsamy;K. Senthilkumar;Kil, Bong-Seop
    • 한국생태학회:학술대회논문집
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    • 2002.08a
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    • pp.93-100
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    • 2002
  • Dynamics of certain $N_2$fixing bacteria such as Rhizobium, Azospirillum and Azotobactor, nodule number in dominant legume, Atylosia trinervia, P-solubilizing bacteria, actinomycetes and fungi were studied in unburned and burned site of natural grassland, southern India. Population of $N_2$- fixing bacteria, P-solubilizing bacteria, fungi and nodule number in legume increased significantly in burned sites. On the other hand, the actinomycetes population remained unchanged. Thirty six species of fungi with tricalcium phosphate solubilizing ability were recorded. The most efficient P-solubilizing fungi recognised in the soils of the study sites are Absidia ramosa, Gongronella butlerii, Mortieralla spinosa, Mucor racemosus, Rhizopus nigricans, R. stolonifer, R. oryzae, Aspergillus fumigatus, A. nidulans, A. niger Theilavia terricola and Cheatomium lunasporium.

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Competency Development in Urban Local Bodies for Implementing Public Private Partnership Projects in India

  • Devkar, Ganesh A.;Kalidindi, Satyanarayana N.
    • Journal of Construction Engineering and Project Management
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    • v.3 no.2
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    • pp.35-48
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    • 2013
  • Weak competencies in urban local bodies (ULBs) for implementing public private partnership (PPP) projects has been recognized as a major hurdle in uptake of PPP model in India. In this context, a questionnaire survey was conducted to evaluate perception of urban PPP experts and ULB representatives on three aspects related to competency development, including, critical competencies for implementing urban PPP projects, approaches for competency development in ULBs and constraints faced by ULBs in development of competencies. The five critical competencies identified are project identification, project conceptualization, transaction design, PPP process management and contract management. The approach of training programs for municipal staff and elected representatives, and capacity building oriented technical assistance for implementing urban PPP projects have been preferred by survey respondents for competency development. The frequent transfer of municipal decision makers and low motivation among municipal staff have been identified as the most significant constraints for development of competencies.

Global Tribology Research Output (1998 - 2012): A Macro Level Scientometric Study

  • Elango, B.;Rajendran, P.
    • Journal of Information Science Theory and Practice
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    • v.3 no.4
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    • pp.35-48
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    • 2015
  • The aim of this study is to compare country output and citation impact as well as to assess the level of interdisciplinarity in the field of tribology research during the period 1998-2012, based on the SCOPUS database. Macro-level scientometric indicators such as growth rate, share of international collaborative papers, citation per paper, share of un-cited papers, and publication efficiency index were employed. Further, the Simpson Index of Diversity was used to measure the level of interdisciplinarity. The performance of top countries contributing more than 1000 papers during the study period was discussed. Contributions and share of continents and countries by income groups were examined. Further research contributions and citation impact of selected country groups were analyzed. This study reveals that high levels of interdisciplinarity exist in tribology research. Asia outperforms the other world regions and China contributes most of the papers (25%), while the United States receives most of the citations (22%).