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Understanding the Effect of Zinc Oxide(ZnO)With Carbon Black Coupling Agent on Physico-Mechanical Properties in Natural Rubber Matrix

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Organic Polymer Material Research 2022年第2期4卷 15-25页

作者： Koushik Pal Koushik Banerjee Soumya Ghosh Chowdhury Sanjay Kumar Bhattacharyya rabindra mukhopadhyay Hari Shankar Singhania Elastomer and Tyre research Institute Plot No.437Hebbal Industrial AreaMysoreKarnataka570016India

Natural rubber(NR)is not only the main compounding ingredient used to make the majority of components of tires as well as other rubber products,as it plays a significant role in ensuring that they operate well and complies with environmental *** applications of NR products are lim-ited to high temperatures due to the revision tendency of NR *** address these issues,the potential engagement of a carbon black(CB)coupling agent(CA)in the presence of metal oxide *** Oxide(ZnO)was investigated in an NR-based *** CA has dual functionality on physicomechanical *** has the ability to reduce hysteresis loss as well as improve anti-reversion properties and these properties thorough-ly depend on the presence of *** ZnO was added to the master formulation,a 65%improvement in reversion properties was *** the other hand,while ZnO fully transferred to the final formulation,bound rubber(BR)content increased by 19%,the difference in storage modulus(ΔG’)is reduced by 22%,cure rate index(CRI)improved by 14%,loss tangent(tanδ)reduced by 18%and slightly improve in elongation at break compared to control ***-gravimetric analysis(TGA)was engaged to understand the thermal stability and degree of purity of CA.A differential Scanning Calorimeter(DSC)was used to detect the phase tran-sition of *** Transform Infrared Spectrum(FTIR)was adopted to detect the presence of carboxyl and amine groups in the CA *** effect,BR content and Transmission Electron Microscope(TEM)were em-ployed to investigate the micro-level dispersion of CB in the natural rubber(NR)matrix.

关键词： Carbon black Natural rubber Carbon black coupling agent Anti-reversion properties

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Probit Analysis of Carbamate-Pesticide-Toxicity at Soil-Water Interface to N_2-Fixing Cyanobacterium Cylindrospermum sp.

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Rice science 2015年第2期22卷 89-98页

作者： rabindra N.PADHY Shakti RATH Department of Botany BJB Autonomous College

Toxicity-data of two carbamate insecticides, carbaryl and carbofuran, and three fungicides, ziram, zineb and mancozeb with rice-field N2-fixing cyanobacterium Cylindrospermum sp., obtained by in vitro growth and at soil-water interface, were analyzed by the probit method. Growth enhancing concentration, no-observed effective concentration, minimum inhibitory concentration, the highest permissive concentration and lethal concentration100 （LCloo） were determined experimentally. The LC^o values of carbaryl, carbofuran, ziram, zineb and mancozeb in N2-fixing liquid medium were 56.2, 588.8, 0.07, 4.2 and 3.4 IJg/mL, respectively, whereas the corresponding LCloo values were 100.0, 1500.0, 0.17, 25.0 and 9.0 IJg/mL, respectively. The LC50 values of these pesticides in succession in N2-fixing agar medium were 44.7, 239.9, 0.07, 1.8 and 2.3 IJg/mL, respectively, whereas the corresponding LC100 values were 100.0, 600.0, 0.17, 10.0 and 7.0 IJg/mL, respectively. Similar results with nitrate supplemented liquid and agar media indicated that nitrate supplementation had toxicity reducing effect. The LCso and LC^oo values of toxicity in the N2-fixing liquid medium at soil-water interface were 91.2 and 200.0 IJg/mL for carbaryl, 2 317 and 6 000 pg/mL for carbofuran, 0.15 and 0.50 pg/mL for ziram, 16.4 and 50.0 pg/mL for zineb, and 7.2 and 25.0 pg/mL for mancozeb, respectively. Each LC^oo value at soil- water interface with a pesticide was significantly higher than its corresponding LCloo value at liquid/agar media. It can be concluded that, under the N2-fixing conditions, the cyanobacterium tolerated higher levels of each pesticide at soil-water interface.

关键词： carbamate pesticide Cylindrospermum sp. cyanobacterium lethal concentration probitanalysis soil-water interface

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A novel use of TiO_2 fiber for photocatalytic ozonation of 2,4-dichlorophenoxyacetic acid in aqueous solution

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Journal of Environmental Sciences 2008年第9期20卷 1138-1145页

作者： GIRI rabindra Raj OZAKI Hiroaki TAKANAMI Ryohei TANIGUCHI Shogo New Industrial R & D Center Osaka Sangyo University Department of Civil Engineering Osaka Sangyo University

More efficient oxidation methods are needed to degrade especially newly emerging recalcitrant organic contaminants at low concentrations in the water environment. Reduced photonic efficiency of immobilized TiO2 is a major challenge in TiO2-assisted advanced oxidation processes (AOP). Mineralization of 2,4-dichllorophenoxyacetic acid (2,4-D) in low aqueous solution by O3/UV/TiO2 using the world’s first high-strength TiO2 fiber was investigated and compared with O3, UV/TiO2, and O3/TiO2 in laboratory batch ex...

关键词： dechlorination degradation intermediates radicals TiO2 total organic carbon (TOC)

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Grid-cell based assessment of soil erosion potential for identification of critical erosion prone areas using USLE,GIS and remote sensing:A case study in the Kapgari watershed,India

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International Soil and Water Conservation Research 2017年第3期5卷 202-211页

作者： Gurjeet Singh rabindra Kumar Panda Department of Civil Engineering School of InfrastructureIndian Institute of Technology BhubaneswarBhubaneswar 752050OdishaIndia

Estimation of soil erosion is of paramount importance due to its serious environmental and societal *** erosion would have impact on fertility of agricultural land and quality of *** major objective of this study was to investigate the spatial heterogeneity of annual soil erosion on the grid-cell basis in a small agricultural watershed of eastern *** study watershed has a drainage area of 973 ha and is subdivided into three sub-watersheds namely:KGSW1,KGSW2 and KGSW3,based on the land topography and drainage *** annual soil erosion was estimated on 100 m×100 m grid-cells by integrating universal soil loss equation(USLE)model with GIS for subsequent identification of critical erosion prone *** was found that 82.63%area of the total watershed falls under slight-erosion-class(0–5 t-ha^(−1)-yr^(−1)),6.87%area lies under the moderate-erosion-class(5–10 t-ha^(−1)-yr^(−1)),5.96%area is under high-erosion-class(10–20 t-ha^(−1)-yr^(−1)),3.3%area of watershed lies under the very-high-erosion-class(20–40 t-ha^(−1)-yr^(−1))and 1.24%area falls under“severe-erosion-class”(40–80 t-ha^(−1)-yr^(−1)).The study revealed that the sub-watershed KGSW3 is critical due to the presence of the highest number of critical erosion prone *** sediment delivery ratio(SDR)was also estimated to analyze the contribution of sediment yield at the sub-watershed *** SDR for the whole watershed as compared to sub-watersheds indicates that most of the eroded soil got deposited in rice crop check-basins before reaching the *** reported results can be used for prioritizing critical erosion prone areas and for determining appropriate soil erosion prevention and control measures.

关键词： Agricultural watershed Eastern India GIS Soil erosion SDRUSLE

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Soil nitrogen balance assessment and its application for sustainable agriculture and environment

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Science China(Life Sciences) 2005年第z2期48卷 843-855页

作者： rabindra Nath Roy Ram Vimal Misra Land and Water Development Division FAO Rome 00100Italy

Soil nitrogen balance assessment (SNBA) serves as an effective tool for estimating the magnitude of nitrogen loss/gain of the agro-eco systems and to appraise their sustainability. SNBA brings forth awareness of soil fertility problems, besides providing information relating to the resultant release of nitrogen into the environment consequent to agricultural practices. Quantitative information relating to nitrogen escape into the environment through such exercises can be gainfully utilized for identification of causative factors, enhancing fertilizer use efficiency and formulating programmes aimed at plugging N leakages. An overview of nitrogen balance approaches and methodologies is presented. A deeper understanding and insight into the agro-eco systems provided by the SNBA exercises can lay the basis for the formulation of effective agronomic interventions and policies aimed at promoting sustainable agriculture and a benign environment.

关键词： nitrogen balance soil fertility sustainable agriculture nutrient flows and macro meso and micro levels

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A comprehensive overview on the role of phytocompounds in human immunodeficiency virus treatment

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Journal of Integrative Medicine 2023年第4期21卷 332-353页

作者： Chinmayee Priyadarsani Mandhata Chita Ranjan Sahoo rabindra Nath Padhy Central Research Laboratory Institute of Medical Sciences and SUM HospitalSiksha O Anusandhan Deemed to be UniversityBhubaneswarOdisha 751003India

Acquired immune deficiency syndrome(AIDS)is a worldwide epidemic caused by human immunodeficiency virus(HIV)*** medicines for eliminating the viral reservoir and eradicating the virus are urgently *** to locate relatively safe and non-toxic medications from natural resources are ongoing ***-product-based antiviral candidates have been exploited to a limited ***,antiviral research is inadequate to counteract for the resistant ***-derived bioactive compounds hold promise as powerful pharmacophore scaffolds,which have shown anti-HIV *** review focuses on a consideration of the virus,various possible HIV-controlling methods and the recent progress in alternative natural compounds with anti-HIV activity,with a particular emphasis on recent results from natural sources of anti-HIV agents.

关键词： HIV Latent reservoir Antiretroviral agents Plant extracts Phytochemicals Antiretroviral therapy Highly active Gene therapy

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Evaluation of the CROPGRO-Peanut model in simulating appropriate sowing date and phosphorus fertilizer application rate for peanut in a subtropical region of eastern India

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The Crop Journal 2017年第4期5卷 317-325页

作者： Debjani Halder rabindra Kumar Panda Rajiv Kumar Srivastava Shyamal Kheroar Department of Agriculture Government of West Bengal Mathabhanga Cooch Behar 736 146 West Bengal India School of Infrastructure Indian Institute of Technology Bhubaneswar 751 013 Odisha India Agricultural and Food Engineering Department Indian Institute of Technology Kharagpur 721 302 West Bengal India Department of Agronomy Uttar Banga Krishi Viswavidyalaya Pundibari Cooch Behar 736 165 West Bengal India

Projected changes in weather parameters, mainly temperature and rainfall, have already started to show their effect on agricultural production. To cope with the changing scenarios, adoption of appropriate management strategies is of paramount importance. A study was undertaken to evaluate the most appropriate combination of sowing date and phosphorus fertilization level for peanut crops grown in sandy loam soil in a subhumid region of eastern India. Field experiments were conducted during the summer seasons of 2012 and 2013 on peanut crops at the farm of the Indian Institute of Technology, Kharagpur. The DSSAT v4.5 CROPGRO-Peanut model was used to predict the phenology, growth, and yield of peanut crop under combinations of four sowing dates and four phosphorus fertilization levels. The model was calibrated with a 2012 dataset of growth, phenology, and yield parameters for estimating the genetic coefficients of cultivar TMV-2 and was validated with a 2013 dataset of the same parameters. Simulations of pod yield and other yield parameters using the calibrated model were found to be quite accurate. The model was able to reasonably simulate pod yield and final biomass with low normalized root mean square error (RMSE_n), low absolute root mean square error (RMSE_a) and high coefficient of determination (R^2> 0.7) over a wide range of sowing dates and different phosphorus fertilization levels sensitivity analysis indicated that sowing from the second week of January to the end of February with 30–50 kg P_2O_5 ha^(-1)would give the highest pod yield.

关键词： Sowing date Phosphorus fertilizer CROPGRO-Peanut model Sensitivity analysis RMSE

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Role of hormone receptors and HER2 as prospective molecular markers for breast cancer:An update

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Genes & Diseases 2022年第3期9卷 648-658页

作者： Swati Sucharita Mohanty Chita Ranjan Sahoo rabindra Nath Padhy Cytogenetics Laboratory P.G.Department of ZoologyUtkal UniversityBhubaneswarOdisha 751004India Central Research Laboratory Institute of Medical Sciences&SUM HospitalSiksha'O’Anusandhan Deemed to be UniversityBhubaneswarOdisha 751003India

This review provides an updated account on the current methods,principles and mechanism of action of therapies for the detection of molecular markers of therapeutic importance in the prognosis of breast cancer progression and recurrence,which includes estrogen receptor(ER),progesterone receptor(PR)and human epidermal growth factor receptor2(HER2).Indeed,hormone-receptors namely,ER,PR,proto-oncogene HER2 are the basic molecular markers that are recognized and established prognostic factors and predictors of response,for therapeutic *** markers can be detected by using immunohistochemistry(IHC)and fluorescence in situ hybridization(FISH),which are established,faster and cost effective detection *** molecular markers along with clinicopathological prognostic parameters give the best prediction of the prognosis of cancer recurrence and ***,hormone receptors and HER2 as molecular markers are of prime therapeutic importance and have the capability to take part in future drug development techniques.

关键词： Breast cancer Molecular diagnostic Molecular markers Predictive markers Prognostic

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Impacts of Rotation on Unsteady Fluid Flow and Energy Distribution through a Bending Duct with Rectangular Cross Section

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Energy Engineering 2022年第2期119卷 453-472页

作者： Mohammad Zohurul Islam rabindra Nath Mondal Suvash C.Saha School of Mechanical and Mechatronic Engineering University of Technology SydneyUltimoNSW 2007Australia Department of Mathematics Jagannath UniversityDhaka1100Bangladesh

A depth understanding of fluid flow past a curved duct having rectangular cross-section with different aspect ratios(l)are essential for various engineering applications such as in chemical,mechanical,biomechanical and bio-medical *** highly ambitious researchers have given significant attention to study new characteristics of fluid flow in a curved *** flow characterization in the rectangular duct has been studied over a wide range of numerical and selective experimental ***,proper knowledge with the effects of Coriolis force for different aspect ratios is important for better understanding of the transitional behaviour and the subsequent heat generation,which is required to improve *** purpose of this study is to reveal insight into the transitional flow pattern and heat transfer in a curved rectangular *** Navier-Stokes equations are solved using the spectral method,while the Crank-Nicolson method is used to solve the energy *** in-house FORTRAN code is developed to get the numerical *** post-processing purposes,Tecplot-360 and Ghost-script tools are *** present study exposes development of Dean vortices that affect heat generation as well as thermal enhancement in the flow with underlying the flow controlling parameters,the Dean number(Dn),the Grashof number(Gr)and the Taylor number(Tr).Time-dependent results followed by phase spaces show that transient flow undergoes in the scenario‘chaotic→multi-periodic→periodic→steady-state’generating 2-to 8-vortices for the periodic/multi-periodic flow at 2000≤Tr≤2205 for l=2,whereas similar sort of flow is observed in the range of 3100≤Tr≤3195 for l=*** complicated 4-to 13-vortex solutions are obtained for the chaotic flow regime at l=2 in the range of 0≤Tr<2200 and at l=3 in the range of 0≤Tr<*** chaotic flow that occurs at the certain range of Tr proficiently intensifies the heat transfer than the unperturbed,periodic or multi-periodic *** over

关键词： Aspect ratio dean flow heat generation rotating duct transient flow

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A Review on Active Customers'Participation in Smart Grids

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Journal of Modern Power Systems and Clean Energy 2023年第1期11卷 3-16页

作者： Konrad Schmitt rabindra Bhatta Manohar Chamana Mahtab Murshed Ilham Osman Stephen Bayne Luciane Canha Electrical and Computer Engineering Department Texas Tech UniversityLubbockTX79409USA Wind Energy Program Texas Tech UniversityLubbockTX79409USA Electromechanical and Power Systems Department Federal University of Santa MariaSanta MariaRS97105-900Brazil Design Release Engineer at Electrification and Power conversion General MotorsGM Tech Center RoadWarrenMI48092USAl IEEE

Industrial,commercial,and residential facilities are progressively adopting automation and generation *** having flexible demand and renewable energy generation,traditional passive customers are becoming active participants in electric power system *** profound coordination among grid operators and active customers,the facilities’capability for demand response(DR)and distributed energy resource(DER)management will be valuable asset for ancillary services(ASs).To comply with the increasing demand and flexible energy,utilities urgently require standards,regulations,and programs to efficiently handle load-side resources without trading off stability and *** study reviews different types of customers’flexibilities for DR,highlighting their capabilities and limitations in performing local ancillary services(LASs),which should benefit the power grid by profiting from it through incentive *** financial incentives and techniques employed around the world are presented and *** potential barriers in technical and regulatory aspects are successfully identified and potential solutions along with future guidance are discussed.

关键词： Active distribution network(ADN) ancillary services energy management flexible demand resiliency

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