检索结果-南通市图书馆

The Effect of Mixed Iodide Salts on the Conductivity Behavior in Ag2O-V2O5-B2O3 Superionic Glass System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

New Journal of Glass and Ceramics 2011年第3期1卷 125-129页

作者： Poonam Sharma d.k. kanchan Nirali Gondaliya Meenakshi Pant Manish S. Jayswal 不详

A superionic mixed metal iodide glass system [(PbI2 –CuI ) - Ag2O- V2O5- B2O3] has been prepared by splat quenching technique. The prepared glass samples are characterized by X-ray diffraction (XRd) and differential scanning calo- rimetry (dSC). The effect of mixed metal iodide salts concentration on electrical properties has been investigated by the complex impedance spectroscopy (CIS). AC conductivity analysis is carried out in the frequency range of 2MHz-1Hz at different temperatures and an enhancement in the conductivity with iodide salts is the main feature of the observed re- sults with an anomaly at 20 mole % of PbI2 –CuI.

关键词： Iodide Salts Ag-Ion Conductors XRd Impedance

Fundamentals,recent developments and prospects of lithium and non-lithium electrochemical rechargeable battery systems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2023年第6期81卷 221-259,I0007页

作者： Maitri Patel kuldeep Mishra Ranjita Banerjee Jigar Chaudhari d.k.kanchan deepak kumar Gujarat Technological University AhmedabadGujarat 382424India Electronics and Mechanical Engineering School VadodaraGujarat 390008India department of Physics Jaypee UniversityAnoopshahrUttar Pradesh 203390India C.k.Shah Viapurwala Institute of Management VadodaraGujarat 390001India Vishwakarma Government Engineering College AhmedabadGujarat 382424India ITM(SLS) Baroda UniversityPaldiVadodaraGujarat 391510India

The present and future energy requirements of mankind can be fulfilled with sustained research and development efforts by global *** purpose of this review paper is to provide an overview of the fundamentals,recent advancements on Lithium and non-Lithium electrochemical rechargeable battery systems,and their future *** initial part of this review paper is dedicated to the advancement and challenges faced by the conventional rechargeable batteries,such as lead-acid,Ni-Cd and Ni-MH *** subsequent section of this review focuses on an in-depth analysis of two major categories of rechargeable batteries,namely lithium-based rechargeable battery systems and alternative non-Lithium rechargeable battery *** working principle,construction,and a few important research progress on Li-ion,Li-O_(2),Li-CO_(2) and Li-S batteries have been *** recent progress and challenges of the alternate batteries such as Na-ion,Na-S,Mg-ion,k-ion,Al-ion,Al-air,Zn-ion and Zn-air are also discussed in this *** large gap between theoretical and practical electrochemical values for the alternate battery system must be filled by adopting a series of design architectures followed by modern instrumentation for developing next-generation batteries in a sustainable and efficient way.

关键词： Conventional rechargeable batteries Li-ion batteries Li-S batteries Li-air battery Other than Lithium batteries Alternate battery systems

Ionic conductivity and relaxation studies in PVdF-HFP:PMMA-based gel polymer blend electrolyte with LiClO_(4) salt

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Advanced dielectrics 2018年第1期8卷 37-49页

作者： khushbu Gohel d.k.kanchan department of Physics Faculty of Science The M.S.University of Baroda Vadodara 390002GujaratIndia

Poly(vinylidene fluoride-hexafluropropylene)(PVdF-HFP)and poly(methyl methacrylate)(PMMA)-based gel polymer electrolytes(GPEs)comprising propylene carbonate and diethyl carbonate mixed plasticizer with variation of lithium perchlorate(LiClO_(4))salt concentrations have been prepared using a solvent casting *** characterization has been carried out using XRd wherein diffraction pattern reveals the amorphous nature of sample up to 7.5 wt.%salt and complexation of polymers and salt have been studied by FTIR *** morphology of the samples has been studied using scanning electron *** impedance spectroscopy in the temperature range 303-363k has been carried out for electrical *** maximum room temperature conductivity of 2.83×10^(-4) S cm^(-1) has been observed for the GPE incorporating 7.5 wt.%LiClO_(4).The temperature dependence of ionic conductivity obeys the Arrhenius *** increase in ionic conductivity with change in temperatures and salt content is *** number measurement is carried out by Wagner’s dC polarization *** tangent(tanδ)and imaginary part of modulus(M″)corresponding to dielectric relaxation and conductivity relaxation respectively show faster relaxation process with increasing salt content up to optimum value of 7.5 wt.%LiClO_(4).The modulus(M″)shows that the conductivity relaxation is of non-debye type(broader than debye peak).

关键词： Gel polymer electrolyte ionic conductivity transport number Wagner’s dC polarization impedance

Analysis of neurotransmitters validates the importance of the dopaminergic system in autism spectrum disorder

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

世界儿科杂志:英文版 2023年第8期19卷 770-781页

作者： Sharmistha Saha Mahasweta Chatterjee Nilanjana dutta Swagata Sinha kanchan Mukhopadhyay Manovikas Biomedical Research and diagnostic Centre Manovikas Kendra482 MadudahPlot I-24Sector-JE.M.BypassKolkataWest Bengal700107India

Background The reasons behind the cardinal symptoms of communication deficits and repetitive,stereotyped behaviors that characterize autism spectrum disorder(ASd)remain *** dopamine(dA)system,which regulates motor activity,goal-directed behaviors,and reward function,is believed to play a crucial role in ASd,although the exact mechanism is still *** have shown an association of the dopamine receptor d4(dRd4)with various neurobehavioral *** We analyzed the association between ASd and four dRd4 genetic polymorphisms,5′flanking 120-bp duplication(rs4646984),rs1800955 in the promoter,exon 112 bp duplication(rs4646983),and exon 348 bp *** also examined plasma dA and its metabolite levels,dRd4 mRNA expression,and correlations of the studied polymorphisms with these parameters by case–control comparative *** expression of dA transporter(dAT),which is important in regulating the circulating dA level,was also *** A significantly higher occurrence of rs1800955“T/TT”was observed in the *** traits were affected by rs1800955“T”and the higher repeat alleles of the exon 348 bp repeats,rs4646983 and *** probands exhibited lower dA and norepinephrine levels together with higher homovanillic acid levels than the control *** and dRd4 mRNA expression were down-regulated in the probands,especially in the presence of dAT rs3836790“6R”and rs27072“CC”and dRd4 rs4646984 higher repeat allele and rs1800955“T”.Conclusion This pioneering investigation revealed a positive correlation between genetic variants,hypodopaminergic state,and impairment in socio-emotional and communication reciprocity in Indian subjects with ASd,warranting further in-depth analysis.

关键词： Autism spectrum disorder dopamine Neurotransmitter

Enzyme inhibition by molluscicidal agents of Bauhinia variegata and Mimusops elengi in the nervous tissue of Lymnaea acuminata

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Coastal Life Medicine 2015年第10期 805-808页

作者： kanchan Lata Singh d.k.Singh Vinay kumar Singh Malacology Laboratory Department of ZoologyDeen Dayal Upadhyay Gorakhpur UniversityGorakhpur 273009U.P.India

Objective:To evaluate the effect of enzymatic activity in the nervous tissue of snail Lymnaea acuminata(***)by Bauhinia variegata(***)and Mimusops elengi(***)and their active molluscicidal components quercetin and ***:Treatment of sublethal concentration(40%and 80%of 96-h LC_(50))in vivo of column-purified fraction of *** leaf and *** bark and their molluscicidal agents quercetin and saponin inhibit the acetylcholinesterase(AChE),acid and alkaline phosphatase(ACP and ALP)activities in the nervous tissue of ***:AChE activity was more inhibited than ACP and ALP in snail exposed to column-purified fraction of *** bark and *** all the treatments the highest inhibition in AChE activity(27.77%)was noted in snail *** exposed to 80%of 96-h LC_(50)of saponin at 96-h exposure ***:It can be concluded from the present study that inhibition of AChE,ACP and ALP by *** leaf(quercetin)and *** bark(saponin)in snail *** could be the cause of snail mortality.

关键词： Fasciolosis Quercetin Saponin Enzyme Fresh water snail

Influence of peach(Prunus persica Batsch)phenological stage on the short-term changes in oxidizable and labile pools of soil organic carbon and activities of carbon-cycle enzymes in the North-Western Himalayas

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pedosphere 2020年第5期30卷 638-650页

作者： Sovan dEBNATH Brij Lai ATTRI Anil kUMAR Arun kISHOR Raj NARAYAN kanchan SINHA Arpan BHOWMIk Anil SHARMA desh Beer SINGH Indian Council of Agricultural Research(lCAR)-Central Institute of Temperate Horticulture Regional StationMukteshwarNainitalUttarakhand 263138(India) department of Agricultural Chemistry and Soil Science Faculty of AgricultureBidhan Chandra Krishi ViswavidyalayaMohanpurWest Bengal 741252(India) Indian Council of Agricultural Research(ICAR)-directorate of Mushroom Research SolanHimachal Pradesh 173213(India) A Indian Council of Agricultural Research(ICAR)-Indian Agricultural Statistics Research Institute New Delhi 110012(India) department of Agricultural Statistics Faculty of AgricultureBidhan Chandra Krishi ViswavidyalayaMohanpurWest Bengal 741252(India) Indian Council of Agricultural Research(ICAR)-Central Institute of Temperate Horticulture SrinagarJammu and Kashmir 190007(India)

The labile organic carbon(C)and C-related enzymes are sensitive indicators capturing alterations of soil organic matter(SOM),even in a short-time *** the effects of crop husbandry and land use change on these attributes have been well studied,there is no consensus about how plant phenology may impact *** study aimed to determine the short-term effect o f six distinct phenological stages(PS-1:full bloom;PS-2:fruit set;PS-3:pit hardening;PS-4:physiological maturity;PS-5:60 d after physiological maturity;and PS-6:fall)o f peach on the changes in soil organic carbon(SOC)fractions of different oxidizability,labile C pools,and C-cycle enzyme activities in soils,for two consecutive years(2015 and 2016)in the North-Western Himalayas(NWH).Peach rhizosphere soils were sampled at the topsoil(0-15 cm)and subsoil(16-30 cm)layers,along with rhizosphere soils from adjacent perennial grasses,which served as a *** for most of the assessed parameters,including very labile C,labile C,microbial biomass C,permanganate oxidizable C,dissolved organic C,mineralizable C,amylase activity,and carboxymethyl-cellulase activity,were significantly(Pdden decline in these soil variables was recorded at PS-5,followed by a slight buildup at PS-6,particularly in the topsoil of the peach ***-term changes in organic C fractions of different oxidizability,influenced by peach phenological stage,significantly(Pd C management index,C pool index,and lability *** the C management index and lability index showed their highest values at PS-3 and their lowest values at PS-5,clearly indicating short-term accretion and depletion of SOC,in tandem with the peach phenological *** component analysis suggested that a composite of soil indicators,including microbial biomass C,dissolved organic C,amylase,and invertase,could help detect short-term changes in SOC *** i

关键词： carbon fractions fruit orchard Indian Himalaya plant phenology rhizosphere soil soil biological indicators