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Groundwater recharge site suitability analysis through multiinfluencing factors(MIF)in West Bengal dry-land areas,West Bengal,India

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Acta Geochimica 2022年第6期41卷 1030-1048页

作者： Kartic Bera Michelle E.Newcomer pabitra banik Agricultural and Ecological Research Unit Indian Statistical Institute203Barrackpore Trunk RoadKolkataWest Bengal700108India Lawrence Berkeley National Laboratory Earth&Environmental Sciences AreaBerkeleyCAUSA

Groundwater levels are gradually declining in basins around the world due to anthropogenic and natural *** is not the only factor contributing to change in groundwater levels,population growth and economic progress are leading to increased water *** used for agricultural irrigation are expanding,necessitating the use of artificial groundwater recharge as a method to sustain pumping and enhance *** present study delineates potential locations of significant groundwater resources that already exist using a geostatistical approach as a method to identify potential groundwater recharge *** Multi-Influencing Factors(MIF)technique was applied to determine the relationship between different landscape and climatic factors that influence groundwater *** include topography,climate,hydrogeology,population,economic change,and *** of these factors enabled the identification of potential locations of groundwater suitable for artificial recharge efforts based on weights derived through the MIF *** applied these weights to derive a groundwater recharge index(GRI)*** map was delineated into three groundwater recharge zones classified by their potential areal coverage as a metric for recharge suitability,namely low,medium and high suitability,occupying areas of 8625 km2(30.06%),9082 km2(31.65%),and 10,989 km~2(38.29%),*** findings have important implications for designing sustainable groundwater development and land-use plans for the coming century.

关键词： Dry-lands Multi-influencing factor(MIF) Weighted index overlay(WIO) Groundwater suitable for artificial recharge(GSAR) Recharge volume(RV)

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Multi-criteria land evaluation for suitability analysis of wheat:a case study of a watershed in eastern plateau region,India

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Geo-Spatial Information Science 2014年第2期17卷 119-128页

作者： Aditi SARKAR Amit GHOSH pabitra banik Agricultural and Ecological Research Unit Indian Statistical Institute203B.T.RoadKolkata 700108India

Improper land use results in land degradation as well as decline in agricultural *** obtain optimum benefit from the land,proper utilization of its resources is *** suitability analysis is the evaluation and grouping of specific areas of land in terms of their suitability for a defined use,which is a precondition for sustainable land use *** study investigated the applicability of Geographical Information System(GIS)techniques in combination with multi-criteria land evaluation for analysing land *** study used the weighted overlay technique for multi-criteria evaluation with GIS for the assessment of suitability of wheat cultivation in Beko watershed(Purulia,India).The watershed area is moderately suitable for wheat crop production,with constraints like imperfect drainage and poor soil depth.

关键词： spatial analysis GIS remote sensing multi-criteria decision analysis spatial decision support system

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Phosphorus fixing capacity of the Oxic Rhodustalf—alfisol soil in the Chotanagpur plateau region of Eastern India

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Agricultural Sciences 2011年第4期2卷 487-490页

作者： Prabir Ghosal Trishit Chakraborty pabitra banik 不详

The P-fixing capacity of a soil governs the P-nutrition of crop plants. P-nutrition of the crop plant is more a soil problem and a higher dose of phosphatic fertilizer is necessary for soils having high P-fixing capacity. The phenomenon of P-fixation and the great variation in the P-fixing capacity of different soils has thus important bearing on crop response to P-application. The eastern plateau region of India with acid lateritic soil is chronically deficient in available phosphorus resulting in very low productivity. An experiment was thus carried out to estimate the P-fixing capacity of soil collected from two depths, 0 - 20 cm and 20 - 50 cm, from the Agricultural experimental farm of Indian Statistical Institute, situated at Giridih, Jharkhand, in the eastern India. The soil was acidic in reaction (pH-5.4) with presence of Fe (1.60%) and Al (17.2%). The P-fixing capacity of the soil was estimated to be 59.60% and 64.94% for the surface and the subsurface soil respectively showing lower P-fixing capacity of the surface soil as compared to the subsurface soil which may be due to presence of more organic matter in the surface soil as organic molecules released on decomposition of organic matter complexes with Fe and Al in the soil thereby blocking the P-fixing sites in the soil.

关键词： P-Fixing Capacity P-Nutrition P-Fixation

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System of Rice Intensification Verses Conventional Rice System: Off-farm Field Studies

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NASS Journal of Agricultural Sciences 2019年第1期1卷 7-17页

作者： Ravi Chandra Sharma Nobuhiko Fuwa pabitra banik R esearch and Development Division Rashtriya Chemicals and Fertilizer LimitedMumbai 400074 University of Tokyo Japan Agricultural and Ecological Research Unit Indian Statistical InstituteKolkata 700103

With inevitable growth of demand for human and industrial needs,water available for agriculture will become scarcer in the *** is a highly water-stressed ***,India needs to invest in improving its water productivity,and any capacity to produce more rice with less *** of Rice Intensification(SRI)has attracted much attention in increasing rice yield per unit *** this study,fifteen farmers were selected those were practicing SRI technology by themselves during the Boro-cultivation season(January-April).The study was continued for three consecutive years 2012 to 14 on the same *** addition to the SRI plots,a similar size of non-SRI plot was maintained in conventional cultivation for comparison *** an average,the non-SR I ight increased by 12%,number of tillers per square meter by 85%,number of reproductive tillers per hill by 286%,weight of panicle per hill by 139%,number of seeds per panicle by 41%and test weight by 26% due to SRI practice over the non-SRI *** increment in straw and grain yield due to SRI over the non-SRI is 70%and 59%*** physico-chemical and biological properties of soil improved due to SRI practice.

关键词： System of rice intensification(SRI) Rice productivity Microbial population Soil properties

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Effect of Nutrient Management and Planting Geometry on Productivity of Hybrid Rice (<i>Oryza sativa</i>L.) Cultivars

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American Journal of Plant Sciences 2011年第3期2卷 297-302页

作者： Ranjita Bezbaruha Ravi Chandra Sharma pabitra banik 不详

Field experiments were conducted during the wet seasons of 2006 and 2007 at the Agricultural Experimental Farm of the Indian Statistical Institute, Giridih, a part of eastern plateau region of India. The study was designed to investigate the effect of planting geometry and nutrient management practices on productivity of two hybrid rice cultivars. Split-plot design with three replications was adopted to carry out the experiment by allocating combinations of treatments of planting geometry and rice cultivar in main-plots and nutrient management treatments in sub-plots. “CNRH-3” rice proved its efficiency in terms of grain yield that was also reflected in yield attributing characters such as number of productive tillers, number of grains per panicle, length of panicle, panicle weight, test weight and harvest index. Higher rice grain yield was registered when the cultivars grown in 20 cm × 20 cm planting geometry. Rice cultivars grown with the application of inorganic fertilizers alone produced maximum grain yield and also recorded higher values of ancillary characters. The maximum amount of N, P and K was taken up by the “CNRH-3” rice, whereas maximum residual soil fertility was recorded in “Pro Agro 6201” rice. Maximum N, P and K uptake values were recorded in 20 cm × 20 cm crop geometry and inorganic fertilizers treatment.

关键词： Hybrid Rice Cultivars Planting Geometry Vermicompost Nutrient Uptake Soil Fertility

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SINGLE SERVER QUEUES WITH A BATCH MARKOVIAN ARRIVAL PROCESS AND BULK RENEWAL OR NON-RENEWAL SERVICE

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Journal of Systems Science and Systems Engineering 2015年第3期24卷 337-363页

作者： A.D.banik School of Basic Sciences Indian Institute of Technology

We first consider an infinite-buffer single server queue where arrivals occur according to a batch Markovian arrival process （BMAP）. The server serves customers in batches of maximum size ＇b＇ with a minimum threshold size ＇a＇. The service time of each batch follows general distribution independent of each other as well as the arrival process. The proposed analysis is based on the use of matrix-analytic procedure to obtain queue-length distribution at a post-departure epoch. Next we obtain queue-length distributions at various other epochs such as, pre-arrival, arbitrary and pre-service using relations with post-departure epoch. Later we also obtain the system-length distributions at post-departure and arbitrary epochs using queue-length distribution at post-departure epoch. Some important performance measures, like mean queue-lengths and mean waiting times have been obtained Total expected cost function per trait time is also derived to determine the locally optimal values of a and b. Secondly, we perform similar analysis for the corresponding infinite-buffer single server queue where arrivals occur according to a BMAP and service process in this case follows a non-renewal one, namely, Markovian service process （MSP）.

关键词： Bulk service (a b)-rule system-length distribution infinite-buffer queue batch Markovian arrival process Markovian service process matrix-analytic procedure cost control cloud computing

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Development of Tunable Silk Fibroin/Xanthan Biopolymeric Scaffold for Skin Tissue Engineering Using L929 Fibroblast Cells

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Journal of Bionic Engineering 2021年第1期18卷 103-117页

作者： Shailendra Singh Shera Rathindra Mohan banik Bioprocess Technology Laboratory Sschool of Biochemical Engineeringndian Institute of Technology(Banaras Hindu University)Varanasi 221005India Department of Biotechnology Faculty of Engineering&TechnologyRAMA Universit Uittar PradeshKanpur 209217India

Skin acts as protective barrier against a number of factors such as dust,opportunistic microbial and viral infections,regulates body temperature and waste *** cell population plays an important role in devclopment of skin architecturc.A scaffold having capability to support and enhance fibroblast growth is a viable option for wound dressing material which can shorten the time for wound to *** this work,Silk Fibroin(SF)and Xanthan(Xa)were blended in three ratios 80 SF:20 Xa(SFX82),60 SF:40 Xa(SFX64),and 50SF:50 Xa(SFX55)to create SF/Xa *** and other physicochemical properties of SF/Xa scaffold are functions of blending ratios and blend with the ratio 80 SF:20 Xa has the highest *** properties of SF/Xa blends are a function of miscibility with SFX82 having superior thermal propertis of all fabricated *** porosity of SF/Xa scaffolds is in the range of 67%to 50%,with pore size of 58.1 um-45.5 um,water uptake capacity of 92%-86%,and surface roughness of 49.95 nm-385 ***82 shows highest growth rate of L929 fibroblast cells indicating its superiority over other scaffolds for providing biological cues for the growth and proliferation of fibroblastic cells in natural ***82 scaffold is found to be most suitable for fibroblastic cells thereby enhancing the tissue regeneration at wound site.

关键词： blends miscibility FTIR imaging Atomic Force Microscopy(AFM) cytocompatibility wound healing

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Stationary Analysis and Optimal Control Under Multiple Working Vacation Policy in a GI/Ma,b/1 Queue

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Journal of Systems Science & Complexity 2018年第4期31卷 1003-1023页

作者： PANDA Gopinath banik Abhijit Datta GUHA Dibyajyoti School of Mathematical Sciences National Institute of Science Education and Research Bhubaneswar-752050 India School of Basic Sciences Indian Institute of Technology Bhubaneswar-752050 India International Management Institute Kolkata-700027 India

This paper considers an infinite buffer renewal input queue with multiple working vacation policy wherein customers are served by a single server according to general bulk service （a,b）-rule （1 ≤ a ≤ b）. If the number of waiting customers in the system at a service completion epoch （during a normal busy period） is lower than ＇a＇, then the server starts a vacation. During a vacation if the number of waiting customers reaches the minimum threshold size ＇a＇, then the server starts serving this batch with a lower rate than that of the normal busy period. After completion of a batch service during working vacation, if the server finds less than takes another vacation, otherwise the server rate. The maximum allowed size of a batch a＇ customers accumulated in the system, then the server continues to serve the available batch with that lower in service is ＇b＇. The authors derive both queue-length and system-length distributions at pre-arrival epoch using both embedded Markov chain approach and the roots method. The arbitrary epoch probabilities are obtained using the classical argument based on renewal theory. Several performance measures like average queue and system-length, mean waiting-time, cost and profit optimization are studied and numerically computed.

关键词： Bulk service cost optimization mean idle period multiple working vacations roots method system-length

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Invitro Biodegradability of Silk Fibroin/Xanthan Biopolymeric Composite Scaffolds

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Journal of Bionic Engineering 2019年第2期16卷 299-310页

作者： Shailendra Singh Shera Shraddha Sahu Rathindra Mohan banik Bioprocess Technology Laboratory School of Biochemical Engineering Indian Institute of TechnologyBanaras Hindu UniversityVaranasi 221005India

Silk fibroin/xanthan scaffolds were prepared by blending silk fibroin and xanthan in the ratios 80SF:20Xa(SFX82),60SF:40Xa(SFX64),and 50SF:50Xa(SFX55)using freeze drying ***-vitro degradation behavior of the prepared scaffolds was studied for 37 days in phosphate buffer *** degradation rate was the function of silk fibroin,xanthan and^-crystallite contents in the silk fibroin/xanthan ***82 degraded extremely slowly whereas SFX55 showed faster degradation *** xanthan was the main contributor of weight ***82 and SFX64 exhibited surface degradation whereas SFX55 showed bulk degradation which indicated that higher silk fibroin ratios favor surface *** to bulk degradation,SFX55 showed maximum surface roughness among the composite *** FTIR spectrum revealed total loss of xanthan from the composites after *** broad and low-intensity peaks in the FTIR spectrum of composite scaffolds con finned reduction in 0-sheet crystallite content during *** analysis also confirmed reduction in 0-sheet crystals and revealed that degraded composite scaffold had predominantly amorphous *** degraded scaffold showed higher porous structure than the non-degraded *** in vitro degradability testing gives a good approximation of degradation of scaffold in vivo and helps in designing a robust biopolymeric composite scaffold for tissue engineering.

关键词： biopolymer composites surface roughness biopolymer degradation surface degradation tissue engineering

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Effects of three-phase-lag on two-temperature generalized thermoelasticity for infinite medium with spherical cavity

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Applied Mathematics and Mechanics(English Edition) 2012年第4期33卷 483-498页

作者： S. banik M. KANORIA Department of Applied Mathematics University of Calcutta

The thermoelastic interaction for the three-phase-lag （TPL） heat equation in an isotropic infinite elastic body with a spherical cavity is studied by two-temperature generalized thermoelasticity theory （2TT）. The heat conduction equation in the theory of TPL is a hyperbolic partial differential equation with a fourth-order derivative with respect to time. The medium is assumed to be initially quiescent. By the Laplace trans- formation, the fundamental equations are expressed in the form of a vector-matrix differ- ential equation, which is solved by a state-space approach. The general solution obtained is applied to a specific problem, when the boundary of the cavity is subjected to the ther- mal loading （the thermal shock and the ramp-type heating） and the mechanical loading. The inversion of the Laplace transform is carried out by the Fourier series expansion tech- niques. The numerical values of the physical quantity are computed for the copper like ma- terial. Significant dissimilarities between two models （the two-temperature Green-Naghdi theory with energy dissipation （2TGN-III） and two-temperature TPL model （2T3phase）） are shown graphically. The effects of two-temperature and ramping parameters are also studied.

关键词： two-temperature generalized thermoelasticity Green-Naghdi model three-phase-lag model spherical cavity state-space approach

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