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Zinc Oxide Nanostructures for NO_2 Gas–Sensor Applications:A Review

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Nano-Micro Letters 2015年第2期7卷 97-120页

作者： Rajesh Kumar O.Al-Dossary girish Kumar Ahmad Umar PG Department of chemistry JCDAV College Department of Physics King Saud University Department of chemistry Faculty of Arts and Sciences Najran University Promising Centre for Sensors and Electronic Devices (PCSED) Najran University

Because of the interesting and multifunctional properties,recently,ZnO nanostructures are considered as excellent material for fabrication of highly sensitive and selective gas ***,ZnO nanomaterials are widely used to fabricate efficient gas sensors for the detection of various hazardous and toxic *** presented review article is focusing on the recent developments of NO2gas sensors based on ZnO *** review presents the general introduction of some metal oxide nanomaterials for gas sensing application and finally focusing on the structure of ZnO and its gas sensing *** gas sensing characteristics such as gas response,response time,recovery time,selectivity,detection limit,stability and recyclability,etc are also discussed in this ***,the utilization of various ZnO nanomaterials such as nanorods,nanowires,nano-micro flowers,quantum dots,thin films and nanosheets,etc for the fabrication of NO2gas sensors are also ***,various factors such as NO2concentrations,annealing temperature,ZnO morphologies and particle sizes,relative humidity,operating temperatures which are affecting the NO2gas sensing properties are discussed in this ***,the review article is concluded and future directions are presented.

关键词： ZnO nanostructure Gas sensors Sensor parameters Sensor mechanism

Complex natural product production methods and options

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Synthetic and Systems Biotechnology 2021年第1期6卷 1-11页

作者： Dongwon Park girish Swayambhu Thomas Lyga Blaine APfeifer Department of chemical and Biological Engineering University at BuffaloThe State University of New YorkBuffaloNYUSA

Natural products have had a major impact upon quality of life,with antibiotics as a classic example of having a transformative impact upon human *** this contribution,we will highlight both historic and emerging methods of natural product *** methods of natural product production relied upon native cellular host *** this context,pragmatic and effective methodologies were established to enable widespread access to natural *** reviewing such strategies,we will also highlight the development of heterologous natural product biosynthesis,which relies instead on a surrogate host system theoretically capable of advanced production *** comparing native and heterologous systems,we will comment on the base organisms used for natural product biosynthesis and how the properties of such cellular hosts dictate scaled engineering practices to facilitate compound *** concluding the article,we will examine novel efforts in production practices that entirely eliminate the constraints of cellular production *** is,cell free production efforts will be introduced and reviewed for the purpose of complex natural product *** in this final analysis will be research efforts made on our part to test the cell free biosynthesis of the complex polyketide antibiotic natural product erythromycin.

关键词： Natural product Bio-manufacturing Native host Heterologous host Biosynthesis

Achievements and prospects of grass pea(Lathyrus sativus L.) improvement for sustainable food production

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The Crop Journal 2016年第5期4卷 407-416页

作者： girish Prasad Dixit Ashok Kumar Parihar Abhishek Bohra Narendra Pratap Singh ICAR-Indian Institute of Pulses Research (IIPR)

Grass pea offers an attractive choice for sustainable food production, owing to its intrinsic properties including limited water requirement and drought tolerance. However, low productivity and the presence of a neurotoxin(ODAP) have posed major obstacles to its genetic improvement. Also, biotechnological investments remain limited and the genome is complex and not well understood. Strategies that allow identification of genotypes with reduced ODAP content, coupling of low ODAP content with enhanced yield, and effective seed detoxification methods merit immediate attention. Breeder-friendly genomic tools are being increasingly made available to improve the efficiency of breeding protocols. To this end, the application of next-generation sequencing has provided a means of leveraging the repertoire of genomic resources for this somewhat neglected crop. In this review, we describe progress achieved in Lathyrus genetic improvement. We also explore potential opportunities in Lathyrus research and identify urgent research needs.

关键词： Grass pea Genetic resource Genetic improvement Molecular marker Molecular breeding Toxin

Performance evaluation of DHRR-RIS based HP design using machine learning algorithms

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Intelligent and Converged Networks 2023年第3期4卷 237-260页

作者： girish Kumar N G Sree Ranga Raju M N the Department of Electronics and Telecommunication Engineering Bangalore Institute of TechnologyVisvesvaraya Technological UniversityBangalore 560004India the Department of Electronics and Communication Engineering Bangalore Institute of TechnologyVisvesvaraya Technological UniversityBangalore 560004India

Reconfigurable Intelligent Surfaces(RIS)have emerged as a promising technology for improving the reliability of massive MIMO communication ***,conventional RIS suffer from poor Spectral Efficiency(SE)and high energy consumption,leading to complex Hybrid Precoding(HP)*** address these issues,we propose a new low-complexity HP model,named Dynamic Hybrid Relay Reflecting RIS based Hybrid Precoding(DHRR-RIS-HP).Our approach combines active and passive elements to cancel out the downsides of both conventional *** first design a DHRR-RIS and optimize the pilot and channel State Information(CSI)estimation using an adaptive threshold method and Adaptive Back Propagation Neural Network(ABPNN)algorithm,respectively,to reduce the Bit Error Rate(BER)and energy *** optimize the data stream,we cluster them into private and public streams using Enhanced Fuzzy C-Means(EFCM)algorithm,and schedule them based on priority and emergency *** maximize the sum rate and SE,we perform digital precoder optimization at the Base Station(BS)side using Deep Deterministic Policy Gradient(DDPG)algorithm and analog precoder optimization at the DHRR-RIS using Fire Hawk Optimization(FHO)*** implement our proposed work using MATLAB R2020a and compare it with existing works using several validation *** results show that our proposed work outperforms existing works in terms of SE,Weighted Sum Rate(WSR),and BER.

关键词： Reconfigurable Intelligent Surfaces(RIS) Dynamic Hybrid Relay Reflecting(DHRR)-RIS Multi User Multiple Input Multiple Output(MU-MIMO) hybrid precoder machine learning and deep learning algorithms channel state estimation

Genotypic variation for seed protein and mineral content among post-rainy season-grown sorghum genotypes

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The Crop Journal 2016年第1期4卷 61-67页

作者： Ashok Badigannavar G.girish V.Ramachandran T.R.Ganapathi Nuclear Agriculture and Biotechnology Division Bhabha Atomic Research Centre Agricultural Research Station University of Agriculture SciencesGulbarga

Sorghum is an important staple food crop of Asian and African *** a poor man s crop",it provides dietary starch,protein,and some vitamins and *** are important for various physiological functions in the human *** a major staple crop of central and southern Indian provinces,sorghum landraces are a source of supplementary *** of micronutrients and protein and yield parameters were studied using 112 local landraces and *** analysis revealed wide variation for iron(1.10-9.54 mg 100 g^(-1)),zinc(1.12-7.58 mg 100 g^(-1)),protein(3.50-12.60%),and grain yield(2.50-76.50 g) among the *** estimates of genetic/phenotypic coefficient of variation,and genetic advances over the mean were identified for landraces and *** heritabilities were also identified for yield and mineral *** estimates among the genotypes indicated that grain yield was positively correlated with copper and protein with copper and *** analysis based on Euclidean distance resolved all of the genotypes into three major *** wide range of values with high heritability estimates may favor the use of these landraces in recombination breeding to improve nutritional quality in sorghum.

关键词： Mineral content Post-rainy sorghum Genetic correlation Cluster analysis

Evaluation of Oral Health-Related Quality of Life among Institutionalized Orphan children

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Journal of Forensic Science and Medicine 2021年第4期7卷 117-122页

作者： KL girish Babu Gururaj Hebbar Kavyashree Department of Dentistry Hassan Institute of Medical SciencesHassanKarnatakaIndia

Introduction:children residing in orphanages are a disadvantaged section of the *** care can impair the quality of life of orphan ***:The aim of this study was to assess the oral health-related quality of life and dental caries status among institutionalized orphan *** and Methods:children without parents,aged 6-14 years,were selected from government-run *** who were willing to participate were *** on oral health-related quality of life were collected by personal interviews by a single ***,intraoral examination of each child was carried out in an adequate natural light using a sterilized mouth mirror and *** caries was assessed according to the World Health Organization *** data obtained were subjected to statistical ***:The Decayed,Missed and Filled teeth(DMFT)score of males was 0.41士0.86 and females was 0.97士1.44,and the difference was statistically *** mean of oral symptoms,functional limitation,emotional well-being,and social well-being was 26.49±4.48,37.75士3.63,33.31±4.1&and 47.92士3.37,***:The prevalence of dental caries was low among these orphan *** quality of life of these children was not affected by their dental caries status.

关键词： Dental caries oral health related quality of life orphans

Cystic fibrosis associated liver disease in children

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World Journal of Hepatology 2021年第11期13卷 1727-1742页

作者： Joseph J Valamparampil girish L Gupte Liver Unit Birmingham Children’s HospitalBirmingham B46NHUnited Kingdom

Cystic fibrosis(CF)is an autosomal recessive disorder caused by mutations in the CF transmembrane conductance regulator *** liver disease develops in 5%-10%of patients with CF and is the third leading cause of death among patients with CF after pulmonary disease or lung transplant *** review the pathogenesis,clinical presentations,complications,diagnostic evaluation,effect of medical therapies especially CF transmembrane conductance regulator modulators and liver transplantation in CF associated liver disease.

关键词： Cystic fibrosis liver disease Portal hypertension Cirrhosis Liver transplantation Cystic fibrosis transmembrane conductance regulator modulators Distal intestinal obstructive syndrome

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心肌局部缺血的预适应(英文)

Acta Pharmacologica Sinica 2002年第10期23卷 3-8页

作者： Priya TYAGI,girish TAYAL Department of Pharmacology Maulana Azad Medical College New Delehi 110002 India Department of Pharmacology Maulana Azad Medical College New Delehi 110002 India

Preconditioning of the myocardium with short episodes of sublethal ischemia will delay the onset of necrosis during a subsequent lethal ischemic insult. Ischemic preconditioning seems to involve a variety of stress signals which include activation of membrane receptors and signaling molecules such as protein kinase C, mitogen-acti-vated protein kinases, opening of ATP-sensitive potassium channel, and expression of many protective proteins. The purpose of this review is to assess the current position in this field and to facilitate future research.

关键词：局部缺血预处理腺苷线粒体一氧化氮心肌

Off-Policy Reinforcement Learning with Gaussian Processes

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IEEE/CAA Journal of Automatica Sinica 2014年第3期1卷 227-238页

作者： girish chowdhary Miao Liu Robert Grande Thomas Walsh Jonathan How Lawrence Carin Oklahomas State University Duke University Massachusetts Institute of Technology

An off-policy Bayesian nonparameteric approximate reinforcement learning framework,termed as GPQ,that employs a Gaussian processes(GP)model of the value(Q)function is presented in both the batch and online *** conditions on GP hyperparameter selection are established to guarantee convergence of off-policy GPQ in the batch setting,and theoretical and practical extensions are provided for the online *** results demonstrate GPQ has competitive learning speed in addition to its convergence guarantees and its ability to automatically choose its own bases locations.

关键词： Approximation algorithms Convergence Function approximation Gaussian processes Learning (artificial intelligence) Bayesian nonparametric Reinforcement learning off-policy learning Converge learning (artificial intelligence) Approximation algorithms Gaussian processes function approximation Learning