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Chinese Physics B 2020年第11期29卷 420-426页

作者： Mohd.Shkir Ziaul Raza Khan T Alshahrani kamlesh vchandekar M Aslam Manthrammel Ashwani Kumar S AlFaify Advanced Functional Materials and Optoelectronics Laboratory(AFMOL) Department of PhysicsCollege of ScienceKing Khalid UniversityAbha 61413P.O.Box 9004Saudi Arabia Department of Physics College of ScienceUniversity of HailP.O.Box 2440HailSaudi Arabia Department of Physics College of SciencePrincess Nourah Bint Abdulrahman UniversityRiyadh 11671Saudi Arabia Department of Physics Rayat Shikshan Sanstha’sKarmaveer Bhaurao Patil CollegeVashiNavi Mumbai 400703India Department of Physics IK Gujral Punjab Technical UniversityJalandhar 144603India

This work reports the cost-effective growth of Mg:PbI2 nanostructures with 0,1,2.5 and 5.0 wt.%Mg doping ***,vibrational,morphological properties are analyzed using x-ray diffraction(XRD),Raman spectroscopy and scanning electron microscopy(SEM).XRD and Raman studies confirm the monophasic hexagonal system of Mg:PbI2,and no additional impurity peaks are *** Scherrer formula is used to determine sizes of crystallites to be in the range of 47-52 ***/SEM e-mapping analyses confirm the incorporation of Mg in PbI2 matrix and its uniform distribution throughout the *** hexagonal nanosheet-and nanoplate-like morphologies are detected in SEM images for pure and Mg-doped *** optical band gap of nanostructures is obtained from Tauc’s relation to be in the range 3.0-3.25 *** and electrical properties are found in significant enhancement as Mg doping in PbI2 matrix,also the conduction mechanism is discussed.

关键词： Mg:PbI2 nanostructures structural properties optical band gap dielectric constant ac conductivity

Optimizing Optical Fiber Faults Detection:A Comparative Analysis of Advanced Machine Learning Approaches

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Computers, Materials & Continua 2024年第5期79卷 2697-2721页

作者： kamlesh Kumar Soothar Yuanxiang Chen Arif Hussain Magsi Cong Hu Hussain Shah School of Electronics Engineering Beijing University of Posts and TelecommunicationsBeijing100876China State Key Laboratory of Integrated Services Networks Xidian UniversityXi’an710071China State Key Laboratory ofNetworking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing100876China

Efficient optical network management poses significant importance in backhaul and access network communicationfor preventing service disruptions and ensuring Quality of Service(QoS)*** emerging faultsin optical networks introduce challenges that can jeopardize the network with a variety of *** existingliterature witnessed various partial or inadequate *** the other hand,Machine Learning(ML)hasrevolutionized as a promising technique for fault detection and *** traditional fault managementsystems,this research has three-fold ***,this research leverages the ML and Deep Learning(DL)multi-classification system and evaluates their accuracy in detecting six distinct fault types,including fiber cut,fibereavesdropping,splicing,bad connector,bending,and PC ***,this paper assesses the classificationdelay of each classification ***,this work proposes a fiber optics fault prevention algorithm thatdetermines to mitigate the faults *** work utilized a publicly available fiber optics dataset namedOTDR_Data and applied different ML classifiers,such as Gaussian Naive Bayes(GNB),Logistic Regression(LR),Support Vector Machine(SVM),K-Nearest Neighbor(KNN),Random Forest(RF),and Decision Tree(DT).Moreover,Ensemble Learning(EL)techniques are applied to evaluate the accuracy of various *** addition,this work evaluated the performance of DL-based Convolutional Neural Network and Long-Short Term Memory(CNN-LSTM)hybrid *** findings reveal that the CNN-LSTM hybrid technique achieved the highestaccuracy of 99%with a delay of 360 *** the other hand,EL techniques improved the accuracy in detecting fiberoptic ***,this research comprehensively assesses accuracy and delay metrics for various classifiers andproposes the most efficient attack detection system in fiber optics.

关键词： Fiber optics fault detection multiclassification machine learning ensemble learning

Advancements in prokaryotic systematics and the role of Bergey's International Society for Microbial Systematics in addressing challenges in the meta-data era

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National Science Review 2024年第7期11卷 292-304页

作者： Jian-Yu Jiao Rashidin Abdugheni Dao-Feng Zhang Iftikhar Ahmed Mukhtiar Ali Maria Chuvochina Svetlana N.Dedysh Xiuzhu Dong Markus G?ker Brian P.Hedlund Philip Hugenholtz kamlesh Jangid Shuang-Jiang Liu Edward R.B.Moore Manik Prabhu Narsing Rao Aharon Oren Ramon Rossello-Mora Bhagwan Narayan Rekadwad Nimaichand Salam Wensheng Shu Iain C.Sutcliffe Wee Fei Aaron Teo Martha E.Trujillo Stephanus N.Venter William B.Whitman Guoping Zhao Wen-Jun Li State Key Laboratory of Biocontrol Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) School of Life Sciences Sun Yat-Sen University State Key Laboratory of Desert and Oasis Ecology Key Laboratory of Ecological Safety and Sustainable Development in Arid LandsXinjiang Institute of Ecology and Geography Chinese Academy of Sciences Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization&College of Oceanography Hohai University National Culture Collection of Pakistan(NCCP) Land Resources Research Institute(LRRI) National Agricultural Research Centre(NARC) The University of Queensland School of Chemistry and Molecular Biosciences Australian Centre for Ecogenomics Winogradsky Institute of Microbiology Research Center of BiotechnologyRussian Academy of Sciences State Key Laboratory of Microbial Resources Institute of Microbiology Chinese Academy of Sciences Leibniz Institute DSMZ–German Collection of Microorganisms and Cell Cultures School of Life Sciences University of Nevada Nevada Institute of Personalized Medicine University of Nevada Bioenergy Group MACS Collection of Microorganisms Agharkar Research Institute State Key Laboratory of Microbial Technology Shandong University Department of Infectious Disease Institute for Biomedicine and Culture Collection University of Gothenburg(CCUG) Institute for BiomedicineSahlgrenska AcademyUniversity of Gothenburg Instituto de Ciencias Aplicadas Facultad de Ingeniería Universidad Autónoma de Chile The Alexander Silberman Institute of Life Sciences The Edmond J.Safra Campus The Hebrew University of Jerusalem Marine Microbiology Group Department of Animal and Microbial Biodiversity Mediterranean Institute for Advanced Studies(IMEDEA CSIC-UIB) MicrobeAI Lab Division of Microbiology and Biotechnology Yenepoya Research Centre Yenepoya(Deemed to be University) National Agri-Food Biotechnology Institute Institute of Ecological Science Sch

Prokaryotes are ubiquitous in the biosphere, important for human health and drive diverse biological and environmental processes. Systematics of prokaryotes, whose origins can be traced to the discovery of microorganisms in the 17th century, has transitioned from a phenotype-based classification to a more comprehensive polyphasic taxonomy and eventually to the current genome-based taxonomic *** transition aligns with a foundational shift from studies focused on phenotypic traits that have limited comparative value to those using genome sequences. In this context, Bergey's Manual of Systematics of Archaea and Bacteria(BMSAB) and Bergey's International Society for Microbial Systematics(BISMiS) play a pivotal role in guiding prokaryotic systematics. This review focuses on the historical development of prokaryotic systematics with a focus on the roles of BMSAB and BISMiS. We also explore significant contributions and achievements by microbiologists, highlight the latest progress in the field and anticipate challenges and opportunities within prokaryotic systematics. Additionally, we outline five focal points of BISMiS that are aimed at addressing these challenges. In conclusion, our collaborative effort seeks to enhance ongoing advancements in prokaryotic systematics, ensuring its continued relevance and innovative characters in the contemporary landscape of genomics and bioinformatics.

关键词： prokaryotic systematics Bergey's Manual of Systematics of Archaea and Bacteria (BMSAB) Bergey's International Society for Microbial Systematics (BISMiS) meta-data era

In situ synthesis of Ag-SiO_2 Janus particles with epoxy functionality for textile applications

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Particuology 2015年第2期13卷 107-112页

作者： kamlesh Panwar Manjeet Jassal Ashwini K.Agrawal SMITA Research Labs Department of Textile TechnologyIndian Institute of Technology

A facile method for the synthesis of silver-silica （Ag-SiO2）Janus particles with functionalities suitable for textile applications is reported. Silica nanoparticles prepared by the StOber method were functionalized with epoxy, amine, and thiol groups, which were confirmed by Fourier transform infrared analysis. The functionalized silica nanoparticles were used to produce Pickering emulsions, and the exposed surface was used for the attachment of silver nanoparticles （AgNPs） via the low-temperature chemical reduction method. The morphology and structure of the Ag-SiO2 Janus particles were characterized by scanning electron microscopy, scanning transmission electron microscopy, high-resolution transmission electron microscopy, energy-dispersive X-ray analysis, and UV-vis spectroscopy. Because of their specific functionalities, these Ag-SiO2 Janus particles are proposed for applications on textile substrates, as they can overcome several drawbacks of direct application of AgNPs on textiles, such as leaching, agglomeration, and instability during storage.

关键词： Ag-SiO2 Janus particles Picketing emulsion Textile applications

A generalization of Poisson-Sujatha distribution and its applications to ecology

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International Journal of Biomathematics 2019年第2期12卷 37-47页

作者： Rama Shanker kamlesh Kumar Shukla Department of Statistics College of Science Eritrea Institute of TechnologyAsmaraEritrea

A generalization of Poisson Sujatha distribution(AGPSD),which includes Poisson-Lindley distribution(PLD)and Poisson-Sujatha distribution(PSD)as particular cases,has been proposed and *** moments and moments-based measures including coefficient of variation,skewness,kurtosis and index of dispersion have been obtained and their behaviors have been *** estimation of its parameters has been discussed with maximum likelihood *** applications of the proposed distribution has been explained through two examples of count data from ecology and the goodness of fit of the distribution has been compared with Poisson distribution,PLD and PSD.

关键词： Sujatha distribution Poisson-Sujatha distribution generalization of Sujatha distribution moments and moments-based measures maximum likelihood estimation applications

Atmospheric pressure plasma-assisted green synthesis of amphiphilic SiO2 Janus particles

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Particuology 2017年第4期15卷 50-54页

作者： kamlesh Panwar Manjeet Jassal Ashwini K. Agrawal SMITA Research Lab Department of Textile Technology Indian Institute of Technology Delhi Hauz Khas New Delhi 11 O016 India

A facile green approach for the synthesis of amphiphilic SiO2 Janus particles using low temperature atmospheric pressure plasma is reported in this study. Monodispersed SiO2 particles were masked by embedding half of their surface inside a polystyrene film. The exposed surfaces of the SiO2 particles were readily modified using He/CF3 CFH2 low-temperature atmospheric pressure plasma to obtain amphiphilic Janus particles. Their amphiphilic nature was confirmed using fluorescent microscopy by tagging their hydrophilic part with a fluorescent dye. The present method can be used to generate amphiphilic Janus particles with a variety of functionalities, which may find applications as surfactants and surface modifying agents.

关键词： Hydrophilic Hydrophobic SiO2 FITC Atmospheric pressure plasma

Multidrug resistance associated proteins in multidrug resistance

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Chinese Journal of Cancer 2012年第2期31卷 58-72页

作者： kamlesh Sodani Atish Patel Rishil J.Kathawala Department of Pharmaceutical Sciences College of Pharmacy and Allied Health ProfessionsSt.John's UniversityQueensNY 11439USA

Multidrug resistance proteins(MRPs) are members of the C family of a group of proteins named ATP-binding cassette(ABC) *** ABC transporters together form the largest branch of proteins within the human *** MRP family comprises of 13 members,of which MRP1 to MRP9 are the major transporters indicated to cause multidrug resistance in tumor cells by extruding anticancer drugs out of the *** are mainly lipophilic anionic transporters and are reported to transport free or conjugates of glutathione(GSH),glucuronate,or *** addition,MRP1 to MRP3 can transport neutral organic drugs in free form in the presence of free ***,MRPs can transport drugs that differ structurally and mechanistically,including natural anticancer drugs,nucleoside analogs,antimetabolites,and tyrosine kinase *** of these MRPs transport physiologically important anions such as leukotriene C4,bilirubin glucuronide,and cyclic *** review focuses mainly on the physiological functions,cellular resistance characteristics,and probable in vivo role of MRP1 to MRP9.

关键词：多药耐药相关蛋白酪氨酸激酶抑制剂葡萄糖醛酸 MRPs 离子转运抗癌药物肿瘤细胞

Effect of different synthesis techniques on structural, magnetic and magneto-transport properties of Pr_(0.7)Sr_(0.3)MnO_3 manganite

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Journal of Rare Earths 2010年第5期28卷 760-764页

作者： Umesh Chand kamlesh Yadav Anurag Gaur Varma G D Department of Physics Indian Institute of Technology Department of Physics National Institute of Technology

We investigated the effect of different synthesis techniques on the structural, magnetic and magneto-transport properties of Pr0.7Sr0.3MnO3 (PSMO) samples. The samples were synthesized by three different techniques: solid state reaction, sol-gel and chemical Co-precipitation method. XRD studies confirmed the single phase formation of PSMO by all three techniques. It was also found that the magnetotransport properties of PSMO strongly depended on the synthesis techniques. A substantial decrease in the insula...

关键词： magnetoresistance electrical transport grain boundary rare earths

Palaeodiet of Miocene Producers and Depositional Environments:Inferences from the First Evidence of Microcoprolites from India

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Acta Geologica Sinica(English Edition) 2020年第5期94卷 1574-1590页

作者： Vivesh VKAPUR kamlesh KUMAR P.MORTHEKAI Amritpal Singh CHADDHA Birbal Sahni Institute of Palaeosciences 53University RoadLucknowUttar Pradesh 226007India

This paper reviews research on coprolites from India,providing the first evidence of microcoprolites from the early Miocene(Aquitanian)Khari Nadi Formation sedimentary succession,exposed about 1.5 km northeast of the village of Kotada,Kachchh(Kutch)District,Gujarat State,western *** and size comparisons(in a statistical framework)with known coprolites from the Mesozoic-Cenozoic successions of India(including those recorded herein)and globally suggest that fishes were the likely producers of the Kotada *** electron microscopy confirms the presence of fish dental remains within the coprolites,while both Scanning Electron Microscopy(SEM)and Energy Dispersive X-ray Spectroscopy(EDS)reveal the phosphatic nature of the microscopic coprolite specimens(recorded herein)hinting that the producer(s)were predominantly carnivorous(ichthyophagous)in their ***,X-Ray Fluorescence(XRF)analysis of the host and associated lithologies allows us to deduce that the Kotada coprolites were deposited in a shallow marine environment,with possible aerial exposure of the host lithology occurring at some point after *** the best of our knowledge,the present report is the first record of microscopic fish coprolites from India,as well as being the first from the Aquitanian of India and the oldest Neogene record from India.

关键词： coprolites palaeodiet palaeoenvironment Energy Dispersive Spectroscopy(EDS) X-Ray Fluorescence(XRF)analysis Miocene(Aquitanian)

Attenuation characteristics of monolayer graphene by Pi-and T-networks modeling of multilayer microstrip line

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Journal of Semiconductors 2017年第9期38卷 25-30页

作者： Pulkit Sharma Sumit Pratap Singh kamlesh Patel Department of Electronic Science University of Delhi South CampusBenito Juarez RoadNew Delhi-110021India

The impedances of Pi- and T- networks are obtained from the measured S-parameters of the multilayer microstrip line by modeling as an attenuator. The changes in impedances have been analyzed for the properties of various superstrates at the microwave ranges. With graphene on glass and graphene on quartz loadings, the impedances have increased and shifted towards lower frequency more in Pi-network than T-network modeling. This shift has become more prominent at higher frequency for the graphene on glass than graphene on quartz. A little increase in attenuation is found for graphene on glass or quartz than bare glass and quartz. The present study can be extended to obtain attenuation characteristic of any thin film by simple experimental method in the microwave frequencies.

关键词： microstrip line attenuator graphene S-parameters impedance