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Influence of supports for selective production of 2,5-dimethylfuran via bimetallic copper-cobalt catalyzed 5-hydroxymethylfurfural hydrog.nolysis

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Chinese Journal of Catalysis 2017年第4期38卷 699-709页

作者： sanjay Srivastava g.C.Jadeja Jig.sha Parikh Department of Chemical Eng.neering Sardar Vallabhbhai National Institute of Technology Surat‐395007 Gujarat India

The hydrog.nolysis of carbon–oxyg.n bonds is an important model reaction in upg.ading.biomass‐derived furanic compounds to transportation *** of these model reactions,namelyconversion of5‐hydroxymethylfurfural(HMF)to the g.soline additive2,5‐dimethylfuran(DMF),isespecially *** this study,bimetallic Cu‐Co catalysts supported on CeO2,ZrO2,and Al2O3were used for the selective hydrog.nolysis of HMF to *** structures of the fresh and usedcatalysts were studied using.X‐ray diffraction,the Brunauer‐Emmett‐Teller method,transmissionelectron microscopy,temperature‐prog.ammed reduction by H2,temperature‐prog.ammed desorptionof NH3,and CHNS *** structures were correlated with the catalytic ***‐Co/CeO2catalyst produced mainly2,5‐bis(hydroxymethyl)furan via reduction of C=O bonds onlarg. Cu *** Cu‐Co/Al2O3catalyst g.ve the best selectivity for DMF,as a result of a combinationof hig.ly dispersed Cu,mixed copper–cobalt oxides,and suitable weak acidic ***‐Co/ZrO2had low selectivity for DMF and produced a combination of variousover‐hydrog.nolysis products,including.,5‐dimethyltetrahydrofuran and5,5‐oxybis(methylene)‐bis(2‐methylfuran),because of the presence of strong.acidic *** reaction pathways and effectsof various operating.parameters,namely temperature,H2pressure,and time,were studied to enableoptimization of the selective conversion of HMF to DMF over the Cu‐Co/Al2O3catalyst.

关键词： 5‐Hydroxymethylfurfural Hydrog.nation Hydrog.nolysis Copper‐cobalt Bimetallic Biofuels

Electron Paramag.etic Resonance of Mn^(2+)-Doped Cadmium Formate Dihydrate Sing.e Crystals

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Chinese Physics Letters 2012年第3期29卷 208-211页

作者： Indrajeet Mishra Ram Kripal sanjay Misra EPR Laboratory Department of PhysicsUniversity of AllahabadAllahabad21100 India 2Department of Physics Buddha P.G.CollegeKushinagar(U.P.)India

An electron paramag.etic resonance(EPR)study on Mn^(2+)doped Cadmium formate dihydrate sing.e crystals is carried *** EPR spectrum at room temperature exhibits only one out of five fine structural transitions which split into six hyperfine lines in all *** spectrum is simulated using.the EasySpin prog.am and evaluated spin Hamiltonian *** simulated EPR spectrum is in g.od ag.eement with the *** comparing.direction cosines of spectroscopic splitting.factor g.and the direction cosines of different bonds determined by the crystal structure data it is found that Mn^(2+)enters the lattice substitutionally and only one Mn^(2+)site is *** obtained g.and the hyperfine interaction constant A achieved are g.2.006±0.002,A=(98±2)×10^(-4)cm^(-1)and the second-order axial zero-field splitting.parameter D=(60±2)×10^(-4)cm^(-1).

关键词： hydrate splitting spectrum

Polyethylene g.ycol(PEg.400):An efficient and recyclable reaction medium for the synthesis of novel 1,5-benzodiazepines and their antimicrobial activity

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Chinese Chemical Letters 2011年第1期22卷 65-68页

作者： Shankaraiah g.Konda Baseer M.Shaikh sanjay A.Chavan Bhaskar S.Dawane Org.nic Research Laboratory Department of Chemistry Yeshwant MahavidyalayaNanded-431602(M.S) India

A new series of imidazole-containing.1, 5-benzodiazepines have been synthesized by the condensation of chalcones with o- phenylenediamine using.piperidine in polyethylene g.ycol （PEg.400） as an efficient and g.een reaction solvent. The advantag.s of this protocol are environmental friendliness, easy work-up, hig. yields, mild reaction condition and avoidance of expensive catalyst. Furthermore, newly synthesized compounds were evaluated for their antimicrobial activity.

关键词： PEg.400 Chalcones: o-Phenylenediamine 1 5-Benzodiazepines: Antimicrobial activity

Outbreak of deng.e infection in rural Davang.re,Karnataka

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Asian Pacific Journal of Tropical Medicine 2013年第6期6卷 502-503页

作者： N.K.Kalappanvar C.S.VinodKumar K.g.Basavarajappa Chandrasekhar g.sanjay D Department of Paediatrics S.S.Institute of Medical Sciences and Research CentreNH-4By passDavangere-577005KarnatakaIndia Department of Microbiolog. S.S.Institute of Medical Sciences and Research CentreNH-4By passDavangere-577005KarnatakaIndia

Sir, Deng.e infections are a sig.ificant cause of morbidity and mortality and lead to adverse economic effects in many developing.tropical *** incidence of deng.e fever is on the rise worldwide,and in some areas of Asia, complications of the disease are a leading.cause of serious illness and death in *** the past two decades in India there has been dramatic g.obal increase in deng.e fever,deng.e haemorrhag.c fever,and deng.e shock syndrome and their epidemics The identification of deng.e cases is by distinct

关键词：李甲

A fuzzy time series forecasting.method induced by intuitionistic fuzzy sets

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International Journal of Modeling. Simulation, and Scientific Computing 2015年第4期6卷 130-152页

作者： sanjay Kumar Sukhdev Sing. g.ng.ar g.B.Pant University and Ag.iculture and Technolog. Pantnag.r UttarakhandIndia

Intuitionistic fuzzy sets(IFSs)are well established as a tool to handle the hesitation in the decision *** this research paper,fuzzy sets induced by IFS are used to develop a fuzzy time series forecasting.model to incorporate deg.ee of hesitation(nondeterminacy).To improve the forecasting.accuracy,induced fuzzy sets are used to establish fuzzy log.cal *** verify the performance of the proposed model,it is implemented on one of the benchmarking.time series ***,developed forecasting.method is also tested and validated by applying.it on a financial time series *** order to show the accuracy in forecasting.the method is compared with other forecasting.methods using.different error measures.

关键词： Fuzzy time series intuitionistic fuzzy sets nondeterminacy induced fuzzy set data models.

A COMPUTATIONAL METHOD FOR FUZZY TIME SERIES FORECASTINg.BASED ON DIFFERENCE PARAMETERS

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International Journal of Modeling. Simulation, and Scientific Computing 2013年第1期4卷 22-33页

作者： BHAg.WATI P.JOSHI sanjay KUMAR Department of Mathematics Statistics&Computer Science G.B.Pant University of Agriculture&Technology Pantnagar 263145UttarakhandIndia

Present study proposes a method for fuzzy time series forecasting.based on difference *** developed method has been presented in a form of simple computational *** utilizes various difference parameters being.implemented on current state for forecasting.the next state values to accommodate the possible vag.eness in the data in an efficient *** developed model has been simulated on the historical student enrollments data of University of Alabama and the obtained forecasted values have been compared with the existing.methods to show its ***,the developed model has also been implemented in forecasting.the movement of market prices of share of State Bank of India(SBI)at Bombay Stock Exchang.(BSE),India.

关键词： Fuzzy time series time variant fuzzy membership g.ade computational alg.rithm.

Continuity of cancer care in the era of COVID-19 pandemic: Role of social media in low- and middle-income countries

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World Journal of Clinical Cases 2021年第2期9卷 291-295页

作者： sanjay Kumar Yadav Nishtha Yadav Department of Surg.ry Netaji Subhash Chandra Bose Medical CollegeJabalpur 482003Madhya PradeshIndia Department of Radiolog. Super-specialty HospitalNetaji Subhash Chandra Bose Medical CollegeJabalpur 482003Madhya PradeshIndia

A novel coronavirus(severe acute respiratory syndrome coronavirus 2)first detected in Wuhan,China,has spread rapidly since December 2019,causing.more than 1.4 million confirmed infections and 15000 fatalities(as of April 9,2020).The outbreak was declared a pandemic by the World Health Org.nization on March 11,***,quarantine,social distancing.and community containment measures were rapidly implemented in China,which helped in containing.the ***,other low-and middle-income countries lack such extensive infrastructural capacities and *** patients are particularly at hig. risk of infection and mortality due to *** self-quarantine is recommended for ***,it is becoming.impossible to maintain the continuity of care when cancer patients have to avoid physical *** media applications,e.g.,Facebook and WhatsApp,can provide educational g.oup prog.am and psychosocial support to these patients while maintain social *** have analyzed their use in this review article and how it could chang. the follow-up of cancer patients during.this pandemic.

关键词： COVID-19 Telemedicine Cancer care Social media Low-and middleincome countries Remote monitoring

Effects of Disturbance Intensities on Veg.tation Patterns in Oak Forests of Kumaun,West Himalaya

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Journal of Mountain Science 2012年第2期9卷 157-165页

作者： Ranbeer S.RAWAL sanjay g.IROLA Uppeandra DHAR g.B.Pant Institute of Himalayan Environment and Development School of Ag.iculture Earth and Environmental SciencesUniversity of KwaZulu-Natal Department of Botany Hamdard University(Jamia Hamdard)

In order to realize the sig.ificance of oak forests for ecolog. and economy of the Himalayan reg.on,the present study attempts to objectively characterize disturbance intensities and their impacts on compositional features of identified Oak forests, ***-oak(Quercus leucotrichophora ***), Tilonj-oak(*** Lindley)and Kharsu-oak(Q. semecarpifolia ***)in west Himalaya. Among.t studied forests,*** and Q. semecarpifolia forests exhibited hig. sensitivity towards disturbance *** both forests, increasing.level of disturbance sig.ificantly lowered tree density,dominance and natural recruitment (seedling.and sapling.density).*** forests, however,appeared relatively more resilient to anthropog.nic *** studied oak forests,*** forests with overall poor natural reg.neration are in a most critically endang.red demog.aphic ***,a slig.tly improved reg.neration(i.e.,seedling.density)in moderately disturbed plots is indicative that such plots may be utilized most suitably for in situ revival of these *** of disturbance intensities on tree population is an important subject for forest ecolog. and manag.ment and the present study hig.lig.ts a need for adopting.different manag.ment strateg.es across disturbance intensities in diverse oak forests of west Himalaya.

关键词： Forest veg.tation Anthropog.nic disturbance Oak forests west Himalaya

Chemical composition and source apportionment of PM2.5 and PM2.5-10 in Trombay （Mumbai, India）, a coastal industrial area

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Particuolog. 2018年第2期16卷 143-153页

作者： Sandeep Police sanjay Kumar Sahu Mahesh Tiwari g.uri g.rish Pandit Environmental Monitoring.and Assessment Section Bhabha Atomic Research Centre Mumbai 400085 India Homi Bhabha National Institute Anushakti Nagar Mumbai 400094 India

PM2.5 and PM2.5 lo concentrations, elemental constituents, and sources in a densely populated coastal industrial area （Trombay, Mumbai） were investig.ted in 2010 and *** PM2.s and PM2.s lo concentra- tions were 13.50-71.60 and 22.40-127.78 p^g.m3, respectively. The daily PM25 concentrations exceeded the Indian Central Pollution Control Board limit （60 μg.m3） several days in winter. Of the elements analyzed, Si then Al had the hig.est concentrations in PM2.5- 10, but black carbon then Si had the hig.est concentrations in PM2.s. The element concentrations varied widely by season. Al, Ca, Fe, Si, and Ti con- centrations were hig.est in summer, Cl, Mg. and Na concentrations were hig.est in the monsoon season, and the other trace metal concentrations in both PM2.5 and PM2.5-10 were hig.est in winter. The PM2.5 and PM2.5-10 sources were apportioned by positive matrix factorization. PM2.5 and PM2.5-10 had six dominant sources, crustal material （8.7% and 25.3%, respectively）, sea salt spray （6.1% and 15.0%, respectively）, coal/biomass combustion （25.5% and 13.8%, respectively）, fuel oil combustion （19.0% and 11.2%, respectively）, road traffic （ 17.7% and 12.6%, respectively）, and the metal industry （ 10.6% and 7.0%, respectively）. Anthropog.nic sources clearly contributed most to PM2.5 but natural sources contributed most to PM2.5-10.

关键词： Trombay PM2.5 PM2.5-10 Black carbon Metals Positive matrix factorization