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21篇 您的检索式:作者名="Junming Yu"
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1Photonic integrated technology for multi-wavelength laser emission显示文摘We summarized the design, fabrication challenges and important technologies for multi-wavelength laser transmitting photonic integration. Technologies discussed include multi-wavelength laser arrays, monolithic integration and modularizing coupling and packaging. Fabrication technique requirements have significantly declined with the rise of reconstruction-equivalent-chirp and second nanoimprint mask technologies. The monolithic integration problem between active and passive waveguides can be overcome with Butt-joint and InP array waveguide grating technologies. The dynamic characteristics of multi-factors will be simultaneously measured with multi-port analyzing modules. The performance of photonic integration chips is significantly improved with the autoecious factors compensation packaging technique.CHEN XiangFei LIU Wen AN JunMing LIU Yu XU Kun WANG Xin LIU JianGuo JI YueFeng ZHU NingHua 2011Chinese Science Bulletin2011,56,28:9
2LLC Resonant Converter Topologies and Industrial Applications-A Review显示文摘Owing to the advantages of high efficiency,high energy density,electrical isolation,low electromagnetic interference(EMI)and harmonic pollution,magnetic integration,wide output ranges,low voltage stress,and high operation frequency,the LLC resonant converters are widely used in various sectors of the electronics-based industries.The history and development of the LLC resonant converters are presented,their advantages are analyzed,three of the most popular LLC resonant converter topologies with detailed assessments of their strengths and drawbacks are elaborated.Furthermore,an important piece of research on the industrial applications of the LLC resonant converters is conducted,mainly including electric vehicle(EV)charging,photovoltaic systems,and light emitting diode(LED)lighting drivers and liquid crystal display(LCD)TV power supplies.Finally,the future evolution of the LLC resonant converter technology is discussed.Junming Zeng Guidong Zhang Samson Shenglong Yu Bo Zhang Yun Zhang 2020Chinese Journal of Electrical Engineering2020,6,3:6
3MicroRNA-195 and microRNA-378 mediate tumor growth suppression by epigenetical regulation in gastric cancer显示文摘Hongxia Deng Yanan Guo Haojun Song Bingxiu Xiao Weiliang Sun Zhong Liu Xiuchong Yu Tian Xia Long Cui Junming Guo 2013Gene2013,,:5
4Neuroprotective effects of vagus nerve stimulation on traumatic brain injury显示文摘Previous studies have shown that vagus nerve stimulation can improve the prognosis of traumatic brain injury. The aim of this study was to elucidate the mechanism of the neuroprotective effects of vagus nerve stimulation in rabbits with brain explosive injury. Rabbits with brain explosive injury received continuous stimulation(10 V, 5 Hz, 5 ms, 20 minutes) of the right cervical vagus nerve. Tumor necrosis factor-α, interleukin-1β and interleukin-10 concentrations were detected in serum and brain tissues, and water content in brain tissues was measured. Results showed that vagus nerve stimulation could reduce the degree of brain edema, decrease tumor necrosis factor-α and interleukin-1β concentrations, and increase interleukin-10 concentration after brain explosive injury in rabbits. These data suggest that vagus nerve stimulation may exert neuroprotective effects against explosive injury via regulating the expression of tumor necrosis factor-α, interleukin-1β and interleukin-10 in the serum and brain tissue.Long Zhou Jinhuang Lin Junming Lin Guoju Kui Jianhua Zhang Yigang Yu 2014Neural Regeneration Research2014,9,17:4
5Profiling of seed fatty acid composition in 1025 Chinese soybean accessions from diverse ecoregions显示文摘The stability of soybean(Glycine max L.Merrill)oil is determined mainly by its fatty acid(FA)composition.We evaluated the FA composition of 1025 Chinese soybean accessions collected from diverse ecoregions and grown in multiple locations and years.We observed highly significant differences(P<0.001)between accessions in palmitic acid(PA),stearic acid(SA),oleic acid(OA),linoleic acid(LA),and linolenic acid(LNA)contents.Growth year affected(P<0.001)the abundance of all FAs except PA.The mean PA,SA,OA,LA,and LNA contents were 12.2%,3.8%,21.5%,54.2%,and 8.3%,respectively.The geographical origin of the accession influenced seed FA composition,indicating that accessions originating in each ecoregion tend to have distinct FA composition.We observed significant positive correlations among the three locations and between the two years,suggesting the high heritability and stability of individual accessions across contrasting environments.We also observed a relatively high negative correlation between the contents of OA and both LA and LNA(r=-0.90 and-0.59,respectively,each significant at P<0.001),providing a potential entry point for developing strains producing oil with higher OA and lower LA and LNA levels.These would be appropriate for specialized use in the food industry.Our results will be useful in breeding soybean with improved quality to meet human nutritional and industrial needs.Ahmed M.Abdelghany Shengrui Zhang Muhammad Azam Abdulwahab S.Shaibu Yue Feng Yanfei Li Yu Tian Huilong Hong Bin Li Junming Sun 2020The Crop Journal2020,8,4:4
6The Tibetan Plateau Surface–Atmosphere Coupling System and Its Weather and Climate Effects: The Third Tibetan Plateau Atmospheric Science Experiment显示文摘The Tibetan Plateau(TP) is a key area affecting forecasts of weather and climate in China and occurrences of extreme weather and climate events over the world. The China Meteorological Administration, the National Natural Science Foundation of China, and the Chinese Academy of Sciences jointly initiated the Third Tibetan Plateau Atmospheric Science Experiment(TIPEX-Ⅲ) in 2013, with an 8–10-yr implementation plan. Since its preliminary field measurements conducted in 2013, routine automatic sounding systems have been deployed at Shiquanhe, Gaize, and Shenzha stations in western TP, where no routine sounding observations were available previously. The observational networks for soil temperature and soil moisture in the central and western TP have also been established. Meanwhile, the plateau-scale and regional-scale boundary layer observations, cloud–precipitation microphysical observations with multiple radars and aircraft campaigns, and tropospheric–stratospheric air composition observations at multiple sites, were performed. The results so far show that the turbulent heat exchange coefficient and sensible heat flux are remarkably lower than the earlier estimations at grassland, meadow, and bare soil surfaces of the central and western TP. Climatologically, cumulus clouds over the main body of the TP might develop locally instead of originating from the cumulus clouds that propagate northward from South Asia. The TIPEX-Ⅲ observations up to now also reveal diurnal variations, macro-and microphysical characteristics, and water-phase transition mechanisms, of cumulus clouds at Naqu station. Moreover, TIPEX-Ⅲ related studies have proposed a maintenance mechanism responsible for the Asian 'atmospheric water tower' and demonstrated the effects of the TP heating anomalies on African, Asian, and North American climates. Additionally, numerical modeling studies show that the Γ distribution of raindrop size is more suitable for depicting the TP raindrop characteristics compared to the M–P distribution, the overestimation of sensible heat flux can be reduced via modifying the heat transfer parameterization over the TP, and considering climatic signals in some key areas of the TP can improve the skill for rainfall forecast in the central and eastern parts of China. Furthermore, the TIPEX-Ⅲ has been promoting the technology in processing surface observations, soundings, and radar observations, improving the quality of satellite retrieved soil moisture and atmospheric water vapor content products as well as high-resolution gauge–radar–satellite merged rainfall products, and facilitating the meteorological monitoring, forecasting, and data sharing operations.Ping ZHAO Yueqing LI Xueliang GUO Xiangde XU Yimin LIU Shihao TANG Wenming XIAO Chunxiang SHI Yaoming MA Xing YU Huizhi LIU La JIA Yun CHEN Yanju LIU Jian LI Dabiao LUO Yunchang CAO Xiangdong ZHENG Junming CHEN An XIAO Fang YUAN Donghui CHEN Yang PANG Zhiqun HU Shengjun ZHANG Lixin DONG Juyang HU Shuai HAN Xiuji ZHOU 2019Journal of Meteorological Research2019,33,3:4
7Integration of data-intensive,machine learning and robotic experimental approaches for accelerated discovery of catalysts in renewable energy-related reactions显示文摘Technological advancements in recent decades have greatly transformed the field of material chemistry.Juxtaposing the accentuating energy demand with the pollution associated,urgent measures are required to ensure energy maximization,while reducing the extended experimental time cycle involved in energy production.In lieu of this,the prominence of catalysts in chemical reactions,particularly energy related reactions cannot be undermined,and thus it is critical to discover and design catalyst,towards the optimization of chemical processes and generation of sustainable energy.Most recently,artificial intelligence(AI)has been incorporated into several fields,particularly in advancing catalytic processes.The integration of intensive data set,machine learning models and robotics,provides a very powerful tool in modifying material synthesis and optimization by generating multifarious dataset amenable with machine learning techniques.The employment of robots automates the process of dataset and machine learning models integration in screening intermetallic surfaces of catalyst,with extreme accuracy and swiftness comparable to a number of human researchers.Although,the utilization of robots in catalyst discovery is still in its infancy,in this review we summarize current sway of artificial intelligence in catalyst discovery,briefly describe the application of databases,machine learning models and robots in this field,with emphasis on the consolidation of these monomeric units into a tripartite flow process.We point out current trends of machine learning and hybrid models of first principle calculations(DFT)for generating dataset,which is integrable into autonomous flow process of catalyst discovery.Also,we discuss catalyst discovery for renewable energy related reactions using this tripartite flow process with predetermined descriptors.Oyawale Adetunji Moses Wei Chen Mukhtar Lawan Adam Zhuo Wang Kaili Liu Junming Shao Zhengsheng Li Wentao Li Chensu Wang Haitao Zhao Cheng Heng Pang Zongyou Yin Xuefeng Yu 2021Materials Reports(Energy)2021,1,3:3
8Action mechanisms and research methods of tRNA-derived small RNAs显示文摘tRNA-derived small RNAs(tsRNAs),including tRNA-derived fragments(tRFs)and tRNA halves(tiRNAs),are small regulatory RNAs processed from mature tRNAs or precursor tRNAs.tRFs and tiRNAs play biological roles through a variety of mechanisms by interacting with proteins or mRNA,inhibiting translation,and regulating gene expression,the cell cycle,and chromatin and epigenetic modifications.The establishment and application of research technologies are important in understanding the biological roles of tRFs and tiRNAs.To study the molecular mechanisms of tRFs and tiRNAs,researchers have used a variety of bioinformatics and molecular biology methods,such as microarray analysis,real-time quantitative reverse transcription-polymerase chain reaction(qRT-PCR);Northern blotting;RNA sequencing(RNA-seq);cross-linking,ligation and sequencing of hybrids(CLASH);and photoactivatable-ribonucleoside-enhanced cross-linking and immunoprecipitation(PAR-CLIP).This paper summarizes the classification,action mechanisms,and roles of tRFs and tiRNAs in human diseases and the related signal transduction pathways,targeted therapies,databases,and research methods associated with them.Yaoyao Xie Lipeng Yao Xiuchong Yu Yao Ruan Zhe Li Junming Guo 2020Signal Transduction and Targeted Therapy2020,5,1:2
9Detection of circulating tumor cells in peripheral blood from patients with gastric cancer using piRNAs as markers显示文摘Long Cui Yanru Lou Xinjun Zhang Hui Zhou Hongxia Deng Haojun Song Xiuchong Yu Bingxiu Xiao Weihua Wang Junming Guo 2011Clinical Biochemistry2011,,13:2
10Dickkopf-1 autoantibody is a novel serological biomarker for non-small cell lung cancer显示文摘Xiao Yao Hua Jiang Cuizhen Zhang Huamao Wang Lin Yang Yongfeng Yu Junming Yu Bizhi Shi Zhijun Shen Huiping Gao Zhiwei Chen Shujun Tian Shun Lu Zonghai Li Jianren Gu 2010Biomarkers2010,,2:1
11Applied Surface Science显示文摘Xu Junming Zhang Xiaobin Chen Fei Li Ting Li Yu Tao Xinyong Wang Youwen Wu Xiaojuan 20052392005,,:1
12Preparation of basic mesoporous molecular sieves K 2 O/Mg-MCM-41 and its catalytic performance on the cracking of soybean oils显示文摘Lu Li Kejing Quan Junming Xu Fusheng Liu Shiwei Liu Shitao Yu Congxia Xie Xiaoping Ge 2014Journal of Analytical and Applied Pyrolysis2014,,:1
13TRANSIENT PHOTOLUMINESCENCE SPECTRA OF GaAs/AlGaAs QUANTUM WELLS, QUANTUM WELL WIRES, AND QUANTUM WELL BOXES显示文摘The interaction of the electrons with the phonons in GaAs/AlGaAs quantum wells,quantum well wires,and quantum well boxes has been studied by meansuring their time resolved photoluminescence(PL)spectra.In the quantum well(Q W)system,relaxation time of the electron energy of the narrower well is shorter than that of the wider well.It is attributed to the stronger interaction of the electrons with the interface mode phonons.In the Q W wires and Q W boxes,the shortening of the relaxation time is obvious.It is due to the stronger electron-phonon interaction caused by the reduction of screening effect.Our experiments also demonstrated the incident laser intensity dependence of the relaxation time.CHENG Wenqin HUANG Yi ZHOU Junming FENG Wei WANG Hezhou SHE Weilong HUANG Xuguang LIN Weizhu YU Zhenxin XU Geng 1990Chinese Physics Letters1990,7,6:0
14Profiling seed soluble sugar compositions in 1164 Chinese soybean accessions from major growing ecoregions显示文摘Soluble sugar is a key quality trait of soybean seeds.We developed rapid and economic extraction and quantification methods for seed soluble sugars using an ultra-high performance liquid chromatography system with a refractive index detector.We evaluated the soluble sugar compositions of 1164 soybean accessions collected from diverse ecoregions and grown in multiple locations and years.Total soluble sugar(TSS)content was influenced by accession type,year of cultivation,and ecoregion.The mean contents of fructose,glucose,sucrose,raffinose,stachyose and TSS were 3.31,5.21,55.60,6.60,35.47,and 106.19 mg g^(-1),respectively.The highest mean TSS content(108.71 mg g^(-1)) was observed in accessions from Northern Region of China.Cultivars contained higher contents of sucrose,raffinose,and TSS,whereas landraces had a higher content of stachyose.Fourteen accessions with mean TSS contents>130 mg g^(-1) were identified as elite soybean resources.TSS was correlated with sucrose,raffinose,stachyose,protein,oil and total tocopherol.The main soluble sugar components were correlated with latitude and longitude,indicating that the geographical origin of the accessions affected their seed soluble sugar compositions.The developed methods and elite identified accessions can be used in the food and feed industry and in soybean breeding programs aimed at improving soybean seed nutrition.Jie Qi Shengrui Zhang Muhammad AzamAbdul wahab S.Shaibu Ahmed M.Abdelghany Yue Feng Yuanyuan HuaiHuoyi Feng Yitian Liu Caiyou Ma Berhane S.Gebregziabher Suprio Ghosh Jing Li Deyue Yu Bin Li Lijuan Qiu Junming Sun 2022The Crop Journal2022,10,6:0
15Secure communication by small time continuous feedback显示文摘Secure communication through chaos synchronization using small time continuous feedback is investigated. The factor K\-r>2 for guaranteeing good recovery of the information signal is determined. The simulation circuit experiment is given by PSPICE circuit simulator. Theory and experiment demonstrate that the secure communication by small time continuous feedback method does not require the system to be divided into subsystems, and has no limitation of signal to noise ratio.Yu Zhang Junming Yu Gonghuan Du 1998Chinese Science Bulletin1998,43,18:0
16A Novel Fuzzy Keyword Retrieval Scheme over Encrypted Cloud Data显示文摘In this paper, we focus on the fuzzy keyword search problem over the encrypted cloud data in the cloud computing and propose a novel Two-Step-Bloom-Secure-Filter (TSBSF) scheme based on Bloom filter to realize the efficiency and flexibility of data use. The proposed scheme not only reduces the space complexity significantly but also supports the data update with low time complexity and guarantees the search accuracy. Experimental results on real world data have certified the validity and practicality of this novel method.TIAN Ke ZHANG Weiming LI Ke WU Junming YU Nenghai 2013Wuhan University Journal of Natural Sciences2013,18,5:0
17Surface passivation and hole extraction:Bifunctional interfacial engineering toward high-performance all-inorganic CsPbIBr2 perovskite solar cells with efficiency exceeding 12%显示文摘All-inorganic CsPbIBr2perovskite solar cells(PSCs)have attracted considerable research attention in recent years due to their excellent thermal stability.However,their power conversion efficiencies(PCEs)are relatively low and still far below the theoretical limit.Here,we report the use of an organic dye molecule(namely VG1-C8)as a bifunctional interlayer between perovskite and the hole-transport layer in CsPbIBr2PSCs.Combined experimental and theoretical calculation results disclose that the multiple Lewis base sites in VG1-C8 can effectively passivate the trap states on the perovskite films.Meanwhile,theπ-conjugated dye molecule significantly accelerates the hole extraction from the perovskite absorber as evidenced by the photoluminescence analysis.Consequently,the VG1-C8 treatment simultaneously boosts the photovoltage and photocurrent density values from 1.26 V and 10.80 mA cm^(-2) to 1.31 V and 12.44 m A cm^(-2),respectively.This leads to a significant enhancement of PCE from 9.20%to12.10%under one sun irradiation(AM 1.5G).To our knowledge,this is the record efficiency reported so far for CsPbIBr_(2) PSCs.Thus,the present work demonstrates an effective interfacial passivation strategy for the development of highly efficient PSCs.Qi Liu Junming Qiu Xianchang Yan Yuemeng Fei Yue Qiang Qingyan Chang Yi Wei Xiaoliang Zhang Wenming Tian Shengye Jin Ze Yu Licheng Sun 2022Journal of Energy Chemistry2022,31,11:0
18Soybean protein concentrate causes enteritis in juvenile pearl gentian groupers(Epinephelus fuscoguttatus♀×Epinephelus lanceolatus♂)显示文摘Due to diminishing fish meal(FM)supplies,superb protein(PRO)sources are needed for aquaculture,such as soy-based PRO.However,these can cause enteritis and even intestinal injury in fish when used at high proportions in feed.This research examines the effects of substituting soybean protein concentrate(SPC)for FM on the growth performance and intestinal balance of pearl gentian groupers and investigates the mechanism of SPC-induced enteritis.Experimental fish(n=720)were fed 1 of 3 following diets:(1)a 50%FM diet(control),(2)a diet with 20%of the FM substituted with SPC(group SPC20),and(3)a 40%SPC-substituted diet(SPC40).Fish were fed for 10 wk iso-nitrogenous(50%PRO)and iso-lipidic(10%lipid)diets.Groups SPC20 and SPC40 showed significantly lower developmental performance and intestinal structures than control.Group SPC40 had significantly higher expressions of pro-inflammatory-related genes,such as interleukin 1β(IL1β),IL12,IL17 and tumor necrosis factorαand significantly lower expressions of anti-inflammatory-related genes,such as IL5,IL10 and transforming growth factorβ1.Biochemical and 16S high-throughput sequencing showed that the abundance and functions of intestinal flora in group SPC40 were significantly affected(P<0.05),and there were significant correlations between operational taxonomic unit abundance variations and inflammatory gene expressions at genus level(P<0.05).The second-and third-generation full-length transcriptome sequence was used to analyze the mechanism of SPC-induced enteritis in pearl gentian groupers,which showed that enteritis induced by SPC may be caused by disturbances to intestinal immune function induced by an imbalance in intestinal nutrition and metabolism,such as the intestinal immunity network for IgA production pathway.However,it remains unclear as to which intestinal immune or nutritional imbalance is most important in enteritis development.This study provides a basis for further research into soy PRO-related enteritis in fish.Wei Zhang Beiping Tan Junming Deng Qihui Yang Shuyan Chi Aobo Pang Yu Xin Yu Liu Haitao Zhang 2023Animal Nutrition2023,,1:0
19Fracture detecting based on Ant Colony Algorithm显示文摘Image processing plays an important role in engineering treatment. The authors mainly introduced the feature recognition of borehole image process based on Ant Colony Algorithm (ACA). The most important geological structure-fracture on the borehole image was identified, and quantitative parameters were obtained by HOUGH transform. Several case studies show that the method is feasible.LIU Qianru XUE Linfu PAN Baozhi ZHANG Cheng'en MA Junming YU Henan QI Caisong 2013Global Geology2013,16,2:0
20The Establishment of Immunochemistry Test Based on a Synthetic Peptide Antibody for the Detection of a Porcine Circovirus-Like Virus P1显示文摘Recently, a novel porcine circovirus-like virus P1 with a circular DNA genome of 0.648 kb was identified. P1 antigen was detected both in vitro and in vivo by synthetic peptide-derived polyclonal antibody-based immunochemistry. The designed peptides were synthesized by solid-phase technique, purified by high performance liquid chromatography, coupled to Keyhole limpet hemocyanin, and injected into rabbits to prepare polyclonal antibody. The emergence of positive cells revealed that synthetic peptide could elicit antibodies against P1 and viral protein could be synthesized. The polyclonal peptide antibodies described here was successfully applied to immunochemical staining and proved helpful in diagnosing P1.Libin WEN Fengzhi WANG Kongwang HE Yanxiu NI Xuehan ZHANG Rongli GUO Bin LI Xiaomin WANG Zhengyu YU Aihua MAO Junming ZHOU Lixin LU Jianping XIE 2014Agricultural Science & Technology2014,15,2:0
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