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材料科学与工程（中英文B版） 2017年第1期7卷 27-38页

作者： Rajesh Ahirwar Jai G. Sharma Bhanumati Singh Krishan kumar Pradip Nahar Saroj kumar CSIR-Institute of Genomics and Integrative Biology Delhi 110007 India Academy of Scientific and lnnovative Research CSIR-Institute of Genomics and lntegrative Biology Delhi 110007 India Department of Biotechnology Delhi Technological University Delhi 110042India Department of Biotechnology Bundelkhand University Jhansi UP 284128 India Department of Chemistry Motilal Nehru College University of Delhi Delhi 110021 India Present address. Department of Biochemistry ICMR-National Institute for Research in Environmental Health Kamla Nehru Hospital Building Bhopa1462001 India

Precipitation Regionalization Using Self-Organizing Maps for Mumbai City, India

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Journal of Water Resource and Protection 2018年第9期10卷 939-956页

作者： Amit Sharad Parchure Shirish kumar Gedam Centre of Studies in Resources Engineering Indian Institute of Technology (IIT) Bombay India

The detailed analysis of individual rain events characteristics is an essential step for improving our understanding of variation in precipitation over different topographies. In this study, the homogeneity among rain gauges was investigated using the concept of “rain event properties,” linking them to the main atmospheric system that affects the rainfall in the region. For this, eight properties of more than 23,000 rain events recorded at 47 meteorological stations in Mumbai, India, were analyzed utilizing seasonal (June-September) rainfall records over 2006-2016. The high similarities among the properties indicated the similarities among the rain gauges. Furthermore, similar rain gauges were distinguished, investigated and characterized by cluster analysis using self-organizing maps (SOM). The cluster analysis results show six clusters of similarly behaving rain gauges, where each cluster addresses one isolated class of variables for the rain gauge. Additionally, the clusters confirm the spatial variation of rainfall caused by the complex topography of Mumbai, comprising the flatland near the Arabian Sea, high-rise buildings (urban area) and mountain and hills areas (Sanjay Gandhi National Park located in the northern part of Mumbai).

关键词： Minimum Inter-Event Time Self-Organizing Map Rain Event Dendrogram

Equilibrium of the Extraction of V(IV) in the V(IV)-SO42-(H+, Na+)—Cyanex 302-Kerosene System

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International Journal of Nonferrous Metallurgy 2012年第3期1卷 23-31页

作者： Ranjit kumar Biswas Aneek Krishna Karmakar Department of Applied Chemistry & Chemical Engineering Rajshahi University Rajshahi Bangladesh

The title system has been investigated from the equilibrium point of view. Significant extraction occurs above pH 2. Equilibration time is 20 min. The extraction ratio (D) remains constant with increasing [V(IV)] of at least 0.50 g/L. It is inversely proportional to [H+]2, [H+] and [H+]0.3 in the lower pH (2;and [SO42-]0 and [SO42-]-1 in the lower [SO42-] (42-] (>1 mol/L) regions, respectively. The apparent extraction equilibrium constant (Kex) in 0.02 mol/L SO42- medium and at 303 K is found to vary from 10-3.447 to 101.508 with increasing equilibrium pH from 2.25 to 4.00. Various sulphated, hydrolyzed, hydrated and mixed sulphated hydrolyzed species of V(IV) have been considered at different extraction conditions to propose the extraction equilibrium reactions to form always [VO(HA2)2] as the extractable species. The system is highly temperature dependent with ?H value of ~90 kJ/mol and ~25 kJ/mol in lower and higher temperature regions, respectively. The calculated loading capacity is low (4.05 g V(IV)/100 g Cyanex 302). Kerosene is a better diluent over CHCl3, Cyclo-C6H12 and CCl4;but much better solvents are C6H6, C6H5CH3, n-C7H16,C6H4(CH3)2, petroleum benzin, 1,2-C2H4Cl2, C6H5Cl. Mineral acids (1 mol/L) are able to strip off V(IV) from the organic phase in a single-stage. Using Cyanex 302, almost complete separations of V(IV) from Cu(II) at pH 1.0 and from Ni(II) at pH(eq) 4.5 are possible in a single-stage of extraction;whereas, its separation from Zn(II) at pH(eq) 2.5, Co(II) at pH(eq) 3.5, Fe(III) at pH(eq) 2.0 and Ti(IV) at pH(eq) 2.5 will require counter-current multi-stage extractions.

关键词： Extraction Equilibrium Vanadium(IV) Cyanex 302 Kerosene Sulphate

Recovery from rabies,a universally fatal disease

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Journal of Medical Colleges of PLA(China) 2016年第4期31卷 230-232页

作者： S.Manoj A.Mukherjee S.Johri K.V.S.Hari kumar Department of Neurology Army Hospital(R&R) Department of Neurology Command Hospital Department of Endocrinology Command Hospital

Background:Rabies is a zoonosis transmitted via the bites of various mammals,primarily dogs and *** since antiquity,this disease may have the deadliest human fatality rates and is responsible for approximately 65,000 deaths worldwide per *** presentation:We report the case details of a 13-year-old boy from India belonging to a South Asian ethnicity,who presented with altered sensorium one month following a dog *** did not receive the active rabies immunization and was managed with supportive *** patient had extensive T_2 weighted(T_2W)/fluid attenuation and inversion recovery(FLAIR) hyper intensities involving the deep gray matter of the cerebral hemispheres,hippocampus,brainstem,and *** diagnosis was confirmed by the demonstration of the rabies antigen from a nuchal skin biopsy and a corneal *** patient had a slow but significant recovery over four months and was discharged from the hospital in stable condition with severe neurological ***:We report a unique case of survival after infection with a universally fatal disease.

关键词： Rabies Recovery Encephalitis Anti-rabies serum Mortality

Meiotic Studies in Withania somnifera(L.) Dunal.: A Threatened Medicinal Herb of Indian Thar Desert

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American Journal of Plant Sciences 2012年第2期3卷 185-189页

作者： Hardev Ram Arun kumar Santosh kumar Sharma Archana Ojha Satyawada Rama Rao Cytogenetics and Molecular Biology Laboratory Department of Botany Jai Narain Vyas University Jodhpur India. Department of Biotechnology and Bioinformatics North-Eastern Hill University Shillong India. Directorate of Rapeseed-Mustard Research Indian Council of Agriculture Research Bharatpur India.

Withania somnifera recently categorized as threatened plant of Rajasthan and known for its high medicinal value has been studied for existing genetic variations in four accessions collected from four different locations. From the present studies it is apparent that the gametic number of W. somnifera is n = 24 and 2n = 48. From the combined information generated by present author and earlier workers, it is tentatively believed that W. somnifera might be of allopolyploid origin with basic number of x = 12. In this case also precocious separation of rod bivalents but not structural hetrozygosity might be the reason for occurrence of univalents. From the detailed meiotic analysis, it is concluded that the species diversification is brought out by polyploidy in W. somnifera. Multidisciplinary approach for genome diagnostics with use of various marker systems might through more light on existing intra-specific genetic variation in W. somnifera.

关键词： Withania Medicinal Meiosis Chromosome Behavior

低复杂度大规模MIMO信号检测技术的研究与设计

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低复杂度大规模MIMO信号检测技术的研究与设计

作者： kumar Kamlesh 北京邮电大学

学位级别：硕士

大规模多输入多输出（MIMO）系统因具有比传统小规模的MIMO系统更高的可靠性和频谱效率而正在快速发展。该系统的主要目的是在相同频带上同时在数以百计的基站天线和用户天线间建立连接。然而大规模MIMO系统在实际应用中往往会面临许多... 详细信息

大规模多输入多输出（MIMO）系统因具有比传统小规模的MIMO系统更高的可靠性和频谱效率而正在快速发展。该系统的主要目的是在相同频带上同时在数以百计的基站天线和用户天线间建立连接。然而大规模MIMO系统在实际应用中往往会面临许多挑战,其中一个主要挑战是由于天线数目庞大而导致的接收端信号检测难的问题。线性检测（即迫零和线性最小均方误差（LMMSE）算法）被认为能够达到接近最优的信号检测性能,但对于大规模天线系统却并不适用。由于包含高阶矩阵的求逆运算,线性检测方法的计算复杂度随着天线数目的增加而快速升高。为了避免大型矩阵的求逆运算,人们将基于迭代的信号检测技术应用到MIMO系统中,但该技术仍需要提升性能和具体实现才能应用于大规模MIMO系统中。本文提出了一种M-MIMO信号技术,它能够避免大型矩阵的求逆运算,并应用到非常大规模的天线系统中。本文提出的技术基于Jacobi和Richardson方法,具有更低计算复杂度和更高信号检测精度的优势。本方法的初始解是天线相关的,这比零初始解要更高效,性能也更好,而且本方法使用近似特征值来计算松弛参数,从而提高了收敛速度。所提出方法在较低的基站用户天线比（BUAR）的情况下展现出了出色的性能。本文用误符号率（SER）来比较不同的BUAR值下的系统性能。结果表明,系统精度随着迭代次数的增加而提高,而且尽管在较小BUAR值下误符号率上升,但本方法展示出了更优的性能,更接近最优的线性最小均方误差方法。

关键词：信号检测基站用户天线比(BUAR) 大规模多输入多输出(MIMO) 线性最小均方误差(LMMSE) 低复杂度

Articulating beneficial rhizobacteria-mediated plant defenses through induced systemic resistance:A review

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Pedosphere 2023年第4期33卷 556-566页

作者： Aniruddh RABARI Janki RUPARELIA Chaitanya kumar JHA Riyaz Z.SAYYED Debasis MITRA Ankita PRIYADARSHINI Ansuman SENAPATI Periyasamy PANNEERSELVAM Pradeep K.DAS MOHAPATRA Department of Microbiology and Biotechnology Gujarat UniversityAhmedabadGujarat 380006(India) Microbiology Department Gujarat Arts and Science CollegeEllisbridgeAhmedabadGujarat 380006(India) Department of Microbiology PSGVP Mandal's ArtsScience and Commerce CollegeMaharashtraShahada 425409(India) Department of Microbiology Raiganj UniversityRaiganjUttar DinajpurWest Bengal 733134(India) Crop Production Division Indian Council of Agriculture Research(ICAR)-National Rice Research InstituteCuttackOdisha 753006(India) Professor A.K.B.Environment Conservation Centre Raiganj UniversityRaiganjWest Bengal 733134(India)

Induced systemic resistance(ISR)is a mechanism by which certain plant beneficial rhizobacteria and fungi produce immunity,which can stimulate crop growth and resilience against various phytopathogens,insects,and *** beneficial rhizobacteria and fungi improve plant performance by regulating hormone signaling,including salicylic acid(SA),jasmonic acid(JA),prosystemin,pathogenesis-related gene 1,and ethylene(ET)pathways,which activate the gene expression of ISR,the synthesis of secondary metabolites,various enzymes,and volatile compounds that ultimately induce defense mechanisms in *** protect themselves from disease,plants have various advanced defense mechanisms in which local acquired resistance,systemic gene silencing,systemic wound response,systemic acquired resistance(SAR),and ISR are *** rhizobacteria activate the SA-dependent SAR pathway by producing SA at the root’s *** contrast,other rhizobacteria can activate different signaling pathways independent of SA(SA-independent ISR pathways)such as those dependent on JA and ET *** main objective of this review is to provide insight into the types of induced resistance utilized for plant *** to this,the genetic approaches used to suppress disease-causing genes,i.e.,RNA interference and antisense RNA,which are still underutilized in sustainable agriculture,along with the current vision for virus-induced gene silencing are also discussed.

关键词： biocontrol gene silencing local acquired resistance phytohormone secondary induced resistances signaling pathways systemic acquired resistance

废旧磷酸铁锂电池中Li和FePO4的选择性回收

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废旧磷酸铁锂电池中Li和FePO4的选择性回收

作者： Jai kumar 中国科学院大学(中国科学院过程工程研究所)

学位级别：硕士

锂离子电池(LIBs)因其高工作电压和高能量密度而被公认为是电动汽车(EV)、便携式电子设备和混合电动汽车(HEV)的理想供电来源。其中,以LiFePO4(LFP)为正极的动力电池体系由于寿命长、成本低廉和无毒害的特点,在电动汽车所用电池中占有... 详细信息

锂离子电池(LIBs)因其高工作电压和高能量密度而被公认为是电动汽车(EV)、便携式电子设备和混合电动汽车(HEV)的理想供电来源。其中,以LiFePO4(LFP)为正极的动力电池体系由于寿命长、成本低廉和无毒害的特点,在电动汽车所用电池中占有很大的市场份额。随着电动汽车行业的迅速发展,越来越多的废旧锂离子电池随之产生,这不仅会导致严重的环境问题,还在一定程度上引起人们对固有资源短缺问题的更多担忧。众所周知,锂是重要的战略元素,但其储量不丰、分布不均。在过去的几十年中,日益增长的和极其有限的供应使得锂化合物的成本不断攀升,回收电池行业大量淘汰的废旧锂离子电池对于缓解锂资源短缺和拓展锂资源来源都具有十分重要的意义。本文基于回收废弃锂电池的技术现状,提出了一种在室温下采用天然有机酸的浸出方法,从废弃LiFePO4阴极粉末中回收Li和FePO4。富含柠檬酸和苹果酸等有机酸的柑橘类果汁(CFJs)由于其操作简单、效率较高而被用作浸出剂,主要负责金属离子的浸出。在这项工作中,我们研究了以CFJs为浸出剂从废LiFePO4阴极中选择性回收Li和FePO4的方法。并考察了不同类型柑橘类果汁的浸出影响因素、对应的浸出机理和Li2CO3产物的纯度。此外,我们将回收的FePO4应用于新活性LiFePO4阴极材料的再生,并讨论了新生材料的电化学性能。在此过程中,我们采用配备能量色散X射线光谱仪(EDS)的扫描电子显微镜(SEM),电感耦合等离子体发射光谱(ICP-OES),X射线粉末衍射(XRD)等表征技术用于表征产品的形貌结构、提取液中的金属成分和回收产物的结晶度信息。经过实验分析,我们得出以下结论:在柠檬,橙和苹果中,柠檬汁由于其合适的反应体系pH值显示出最佳的浸出效果。在优化的条件下(包括柠檬汁百分比,反应时间,固液比和过氧化氢量),Li,Cu和Al的浸出率可分别达到94.83%,96.92%和 47.24%,而 Fe 和 P 分别低至 4.05%和 0.84%。Li2CO3 和 FePO4可以分别从浸出液和浸出残渣中回收。回收后的FePO4用于制备新的正极材料LiFePO4,再生的LiFePO4正极材料在0.1 C倍率下的放电容量为155.3 mAh g-1,与工业产品中的磷酸铁锂颇为接近。另外,在1 C下循环100周后依然展示出98.30%的容量保持率,每个循环的衰减率仅为0.017%。综上所述,基于有机酸的策略对于回收废LFP阴极材料具有重要意义,并将为LIB的可持续发展提供无限的助力。

关键词：废旧LiFePO4正极粉体 Li和FePO4回收生物质基浸出柠檬汁再生LiFePO4

Nonionic surfactant vesicular systems for effective drug delivery—an overview

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Acta Pharmaceutica Sinica B 2011年第4期1卷 208-219页

作者： Gannu P.kumar Pogaku Rajeshwarrao Department of Pharmaceutics Talla Padmavathi College of PharmacyWarangal 506002India

Vesicular systems are a novel means of drug delivery that can enhance bioavailability of encapsulated drug and provide therapeutic activity in a controlled manner for a prolonged period of *** were the first such system but they suffer from a number of drawbacks including high cost and lack of stability at various *** are a nonionic surfactant vesicular system,which can be easily and reliably made in the *** factors affect noisome formation such as the method of manufacture,nature of surfactant and encapsulated drug,temperature at which the lipids are hydrated and the critical packing *** review describes all aspects of niosomes including their different compositions,the various methods of preparation,the effect of changing manufacturing parameters,methods of characterization,factors that affect their stability,their use by various routes of administration,their therapeutic applications and the most important *** review also provides detailed information of the various types of niosomes that provide effective drug delivery.

关键词： Niosomes Nonionic surfactants Transferosomes Discomes Elastic niosomes Proniosomes

Indian National Strong Motion Instrumentation Network and Site Characterization of Its Stations

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International Journal of Geosciences 2012年第6期3卷 1151-1167页

作者： Himanshu Mittal Ashok kumar Rebecca Ramhmachhuani Department of Earthquake Engineering Indian Institute of Technology Roorkee India

Indian Institute of Technology, Roorkee (IITR) is operating a nationwide network of instruments for recording strong ground motion. Total 300 instruments are installed in seismic zone III, IV and V along Himalayan belt. Primary goal of this project is to acquire strong ground-motion (SGM) data for various studies in the field of earthquake engineering and seismology in general and in particular to understand propagation and site response characteristics of the sediments that underlie and are thought to produce large site amplification and seismic hazard. These data will complement laboratory data to characterize the properties of the soft soils underlying residential area so that engineers and architects can design appropriate earthquake-resistant structures for the region. The successful working of this network has laid the foundation of Earthquake Early Warning System (EEW) in India. A great number of strong motion records have been obtained and utilized to study local site and geological effects. The paper introduces outline of the IITR strong motion network and some of its recent studies.

关键词： IITR Amplification SGM Accelerographs Earthquake EEW