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58篇 您的检索式:作者名="Yanhua PENG"
    题名 作者 年代 出处 被引量
1Fast method for spreading sequence estimation of DSSS signal based on maximum likelihood function显示文摘To estimate the spreading sequence of the direct sequence spread spectrum (DSSS) signal, a fast algorithm based on maximum likelihood function is proposed, and the theoretical derivation of the algorithm is provided. By simplifying the objective function of maximum likelihood estimation, the algorithm can realize sequence synchronization and sequence estimation via adaptive iteration and sliding window. Since it avoids the correlation matrix computation, the algorithm significantly reduces the storage requirement and the computation complexity. Simulations show that it is a fast convergent algorithm, and can perform well in low signal to noise ratio (SNR).Yanhua Peng Bin Tang Ming Lv 2010Journal of Systems Engineering and Electronics2010,21,6:11
2Octreotide protects against hepatic ischemia/ reperfusion injury via HO-l-mediated autophagy显示文摘Shuangfa Zou Huiping Sun Keith A. Candiotti Yanhua Peng Qinya Zhang Weiqiang Xiao Shuwu Zhao Liqiang Wu Jinfeng Yang 2018Acta Biochimica et Biophysica Sinica2018,50,3:3
3TSC1 controls IL-1β expression in macrophages via mTORCl-dependent C/EBPβ pathway显示文摘Tao Yang Linnan Zhu Yanhua Zhai Qingjie Zhao Jianxia Peng Hongbing Zhang Zhongzhou Yang Lianfeng Zhang Wenjun Ding Yong Zhao 2016Cellular & Molecular Immunology2016,13,5:3
4Primary migration and secondary alteration of the Upper Paleozoic gas reservoir in Ordos Basin,China―Application of fluid inclusion gases显示文摘The composition of fluid inclusions(FI)often represents the initial geochemical characteristics of palaeo-fluid in reservoir rock.Influence on composition and carbon isotopic composition of gas during primary migration,reservoir-forming and subsequent secondary alterations are discussed through comparing fluid inclusion gas with coal-formed gas and natural gas in present gas reservoirs in the Ordos Basin.The results show that primary migration of gas has significant effect on the molecular but not on the carbon isotopic composition of methane.Migration and diffusion fractionation took place during the secondary migration of gas in Upper Paleozoic gas reservoir according to carbon isotopic composition of methane in FIs.Composition and carbon isotopic composition of natural gas were nearly unchanged after the gas reservoir forming through comparing the FI gases with the natural gas in present gas reservoir.GONG Se 1,2 ,PENG PingAn 1 ,SHUAI YanHua 3 ,DAI JinXing 3 &ZHANG WenZheng 4 1 Guangzhou Institute of Geochemistry,the Chinese Academy of Sciences,Guangzhou 510640,China 2 Common Wealth Scientific and Research Organization,Petroleum Resources,PO Box 136,North Ryde,New South Wales,1670,Australia 3 Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China 4 Research Institute of Exploration and Development,Changqing Petroleum Corporation,Xi’an 710021,China 2008Science China Earth Sciences2008,51,S1:3
5Synthesis of hyperbranched copolymers by combining enzymatic ring-opening polymerization and ATRP from a novel bifunctional initiator显示文摘亢奋的分叉的脂肪族的聚酯 P (epsilon -CL) 借助于 BHB 的催化 Novozyme435 的戒指洞聚合(ROP ) 被综合(2, 2 二度(hydroxymethyl ) 奶油的酸) 。以 P ( epsilon-CL )的氢氧根结束的链被 esteriflcation ofa-bromopropionyl 溴化物修改获得亢奋的分叉的 difunctional 宏开始者,它在圣库克尔姆泰塔的 theATRP 被使用在 ATRP 的反应被用作催化剂系统 polystyrene-block-poly 获得 thehyperbranched 共聚物(2,2二度( hydroxymethyl )奶油的酸)。共聚物被 NMR 和 GPC 证实。AI Peng CHEN Liang HU Dehua CHEN Yanhua LU Dongshuang ZHANG Bao SHA Ke WANG Jingyuan 2006Chinese Science Bulletin2006,51,22:3
6Dark current mechanism of unpassivated mid wavelength type II InAs/GaSb superlattice infrared photodetector显示文摘We investigate the dark current mechanism for an unpassivated mid wavelength(MW) type II InAs/GaSb superlattice infrared photodetector by doing the variablearea diode tests. The bulk resistance-area product and the resistivity due to the surface current are determined to be17.72 X cm2 and 704.23 X cm at 77 K, respectively. It is found that for all the mesa sizes used, the dark current is dominated or predominated by the surface component, and with scaling back the mesa size, the surface current increases while the bulk component decreases. The activation energy is determined to be 145 meV for the temperature range around 140–280 K, while it is 6 meV when temperature is below 100 K. It is also found that the dark current is dominated by the generation-recombination current for the MW device when temperature is between140 and 280 K.Qiong Li Wenquan Ma Yanhua Zhang Kai Cui Jianliang Huang Yang Wei Ke Liu Yulian Cao Weiying Wang Yali Liu Peng Jin 2014Chinese Science Bulletin2014,59,28:3
7Development of Bi/Er co-doped optical fibers for ultra-broadband photonic applications显示文摘Yanhua LUO Binbin YAN Jianzhong ZHANG Jianxiang WEN Jun HE Gang-Ding PENG 2018Frontiers of Optoelectronics2018,11,1:2
8Structure formation dynamics in drawing silica photonic crystal fibres显示文摘Wenyu WANG Ghazal Fallah TAFTI Mingjie DING Yanhua LUO Yuan TIAN Shuai WANG Tomasz KARPISZ John CANNING Kevin COOK Gang-Ding PENG 2018Frontiers of Optoelectronics2018,11,1:2
9Overview of the Mars climate station for Tianwen-1 mission显示文摘The background and scientific objectives of the Mars Climate Station(MCS)for Tianwen-1 are introduced,accompanied by a comparative review of the status of related meteorological observation missions and of advanced sensing technologies.As one of the China Tianwen-1 Mission’s principal scientific payloads,the MCS contains four measurement sensors and one electronic processing unit that are specially designed to measure local temperature,pressure,wind,and sound on the Martian surface.The MCS’s measurement principles,technical schemes,ground calibration techniques,and adaptability evaluation to the Mars surface environment of MCS are introduced in details.The conclusion presents measurement performance specifications of the MCS,based on ground test results,that will provide guidance to future research based on data from the Tianwen-1 and later Mars missions.YongQing Peng LeiBo Zhang ZhiGuo Cai ZhaoGang Wang HaiLong Jiao DongLi Wang XianTao Yang LianGuo Wang Xu Tan Feng Wang Jing Fang ZhouLu Sun HongLiang Feng XiaoRui Huang Yan Zhu Ming Chen LiangHai Li YanHua Li 2020Earth and Planetary Physics2020,4,4:2
10Bacteroides ovatus-mediated CD27^(−)MAIT cell activation is associated with obesity-related T2D progression显示文摘Type 2 diabetes(T2D)is highly associated with obesity.However,the factors that drive the transition from excessive weight gain to glucose metabolism disruption are still uncertain and seem to revolve around systemic immune disorder.Mucosal-associated invariant T(MAIT)cells,which are innate-like T cells that recognize bacterial metabolites,have been reported to be altered in obese people and to lead to metabolic dysfunction during obesity.By studying the immunophenotypes of blood MAIT cells from a cross-sectional cohort of obese participants with/without T2D,we found an elevation in CD27^(-)negative(CD27−)MAIT cells producing a high level of IL-17 under T2D obese conditions,which could be positively correlated with impaired glucose metabolism in obese people.We further explored microbial translocation caused by gut barrier dysfunction in obese people as a triggering factor of MAIT cell abnormalities.Specifically,accumulation of the bacterial strain Bacteroides ovatus in the peripheral blood drove IL-17^(-)producing CD27−MAIT cell expansion and could be associated with T2D risk in obese individuals.Overall,these results suggest that an aberrant gut microbiota–immune axis in obese people may drive or exacerbate T2D.Importantly,CD27−MAIT cell subsets and Bacteroides ovatus could represent targets for novel interventional strategies.Our findings extend current knowledge regarding the clinical relevance of body mass index(BMI)-associated variation in circulating MAIT cells to reveal the role of these cells in obesity-related T2D progression and the underlying cellular mechanisms.Yue Li Yi Yang Jin Wang Peihong Cai Mei Li Xixiang Tang Ying Tan Yuchan Wang Fan Zhang Xiaofeng Wen Qiaoxing Liang Yuanpeng Nie Tufeng Chen Xiang Peng Xuemin He Yanhua Zhu Guojun Shi Wai WCheung Lai Wei Yanming Chen Yan Lu 2022Cellular & Molecular Immunology2022,19,7:2
11Integrated dynamic wet spinning of core-sheath hydrogel fibers for optical-to-brain/tissue communications显示文摘Hydrogel optical light-guides have received substantial interest for applications such as deep-tissue biosensors,optogenetic stimulation and photomedicine due to their biocompatibility,(micro)structure control and tissue-like Young’s modulus.However,despite recent developments,large-scale fabrication with a continuous synthetic methodology,which could produce core-sheath hydrogel fibers with the desired optical and mechanical properties suitable for deep-tissue applications,has yet to be achieved.In this study,we report a versatile concept of integrated light-triggered dynamic wet spinning capable of continuously producing core-sheath hydrogel optical fibers with tunable fiber diameters,and mechanical and optical propagation properties.Furthermore,this concept also exhibited versatility for various kinds of core-sheath functional fibers.The wet spinning synthetic procedure and fabrication process were optimized with the rational design of the core/sheath material interface compatibility[core=poly(ethylene glycol diacrylate-co-acrylamide);sheath=Ca-alginate],optical transparency,refractive index and spinning solution viscosity.The resulting hydrogel optical fibers exhibited desirable low optical attenuation(0.18±0.01 d B cm^(-1) with 650 nm laser light),excellent biocompatibility and tissue-like Young’s modulus(<2.60 MPa).The optical waveguide hydrogel fibers were successfully employed for deep-tissue cancer therapy and brain optogenetic stimulation,confirming that they could serve as an efficient versatile tool for diverse deep-tissue therapy and brain optogenetic applications.Guoyin Chen Gang Wang Xinrong Tan Kai Hou Qingshuo Meng Peng Zhao Shun Wang Jiayi Zhang Zhan Zhou Tao Chen Yanhua Cheng D Benjamin S.Hsiao Elsa Reichmanis Meifang Zhu 2021National Science Review2021,8,9:2
12Carbon isotope kinetics of gaseous hydrocarbons generated from different kinds of vitrinites显示文摘Kinetics study of gaseous hydrocarbons generated from vitrinites based on pyrolysis of gold tube closed system shows that the activation energies of methane generated from telocollinite are higher than that from desmocol-linite due to structure differences. But carbon isotope ratios of generated methane in pyrolysates of vitrinites at the same temperature points are similar. Carbon isotope ratio of methane may decrease in the early stage of gas generation and then increase in the later stage. But at higher temperature, δ13C1 decreases slightly or almost keeps stable with increasing temperature. Since it is known that carbon isotope distillation is controlled by time, temperature and carbon isotope ratio of bulk organic matter, the character of side chains connected to macromolecule of vitrinite and distribution of activation energies have no obvious effect on carbon isotope fraction. Decreasing trend of δ13C1 in the early stage may be caused by contagious structure of vitrinite or differences ofLIU Dayong LIU Jinzhong PENG Ping’an SHUAI Yanhua 2004Chinese Science Bulletin2004,49,S1:2
13Floralozone protects endothelial function in atherosclerosis by ameliorating NHE1显示文摘Endothelial dysfunction is the pathological basis of atherosclerosis.Incomplete understanding of endothelial dysfunction etiology has impeded drug development for this devastating disease despite the currently available therapies.Floralozone,an aroma flavor,specifically exists in rabbit ear grass.Recently,floralozone has been demonstrated to inhibit atherosclerosis,but the underlying mechanisms are undefined.The present study was undertaken to explore whether floralozone pharmacologically targets endothelial dysfunction and therefore exerts therapeutic effects on atherosclerosis.The Na+/H+exchanger 1(NHE1),a channel protein,plays a vital role in atherosclerosis.Whether NHE1 is involved in the therapeutic effects of floralozone on endothelial dysfunction has yet to be further answered.By performing oil red staining and hematoxylin–eosin staining,vascular functional study,and oxidative stress monitoring,we found that floralozone not only reduced the size of carotid atherosclerotic plaque but also prevented endothelial dysfunction in atherosclerotic rats.NHE1 expression was upregulated in the inner membrane of carotid arteries and H2O2-induced primary rat aortic endothelial cells.Inspiringly,floralozone prevented the upregulation of NHE1 in vivo and in vitro.Notably,the administration of NHE1 activator LiCl significantly weakened the protective effect of floralozone on endothelial dysfunction in vivo and in vitro.Our study demonstrated that floralozone exerted its protective effect on endothelial dysfunction in atherosclerosis by ameliorating NHE1.NHE1 maybe a drug target for the treatment of atherosclerosis,and floralozone may be an effective drug to meet the urgent needs of atherosclerosis patients by dampening NHE1.Ning Huang Yue Qiu Yanhua Liu Tianheng Liu Xianjun Xue Ping Song Jian Xu Yutian Fu Ruili Sun Yaling Yin Peng Li 2021Acta Biochimica et Biophysica Sinica2021,53,10:2
14Kinetic modeling the effects of primary migration, diffusion and waterwashing on Upper Paleozoic coal-derived gas at the center of Ordos Basin显示文摘Gold reactor pyrolysis system is used to model the gas formation from the Upper Paleozoic coal measures and the results show coal-derived gas characterized with δ13C1 of-33.46‰, δ13C2 of-23.1‰, dryness(C1/C1-4) 85.6%. And then, effects of the post-genetic processes on coal- derived gas are analyzed in turn: (i) About 27% coal-derived gases constituted with more methane are calculated to be lost during diffusion. The residual in reservoir are characterized with almost the same compositions as the original, which suggests faint influence by diffusion (the residual, δ13C1 of -32.78‰, δ13C2 of-23.1‰, C1/C1-4 83%); (ii) Water washing made about 8% coal-formed gases lost and their components and stable carbon isotopes are stable; (iii) In the final, it is speculated that primary migration makes much more wet gas (C2-4) leave in coal measures. The variance of gas dryness induced by this factor is estimated to be about 10%.SHUAI Yanhua ZOU Yanrong PENG Ping’an 2004Chinese Science Bulletin2004,49,S1:2
15ADAM10 overexpression in human non-small cell lung cancer correlateswith cell migration and invasion through the activation of the Notch1 signalingpathway显示文摘Jianli Guo Lei He Ping Yuan Peng Wang Yanjun Lu Fangli Tong Yu Wang Yanhua Yin Jun Tian Jun Sun 2012Oncology Reports2012,,:1
16Combination of Bamboo Filling and FRP Wrapping to Strengthen Steel Members in Compression显示文摘Peng Feng Yanhua Zhang Yu Bai Lieping Ye 2013Journal of Composites for Construction2013,,3:1
17EasyDelta: A spreadsheet for kinetic modeling of the stable carbon isotope composition of natural gases 显示文摘Zou Yanrong Wang Lianyuan Shuai Yanhua Peng Ping'an 2005Computers & Geosciences2005,31,7:1
18Improving the prediction of human microRNA target genes by using ensemble algorithm显示文摘Xingqi Yan Tengfei Chao Kang Tu Yu Zhang Lu Xie Yanhua Gong Jiangang Yuan Boqin Qiang Xiaozhong Peng 2007FEBS Letters2007,,8:1
19Kinetic study of hydrocarbon generation of oil asphaltene from Lunnan area,Tabei uplift显示文摘The molecular compositions and molecular carbon isotopic compositions of gas hydrocarbons produced in the hydrocarbon generation of oil asphaltene from Lunnnan area were investigated by pyrolysis of asphaltene sealed in gold tube in a limited system. The experimental results indicated that oil asphaltene from Lunnan area had relatively high generation potential of methane. However, the molecular compositions and molecular carbon isotopic compositions of gas hydrocarbons in the hydrocarbon generation of oil asphaltene exhibited different characteristics from that of gas hydrocarbons by primary cracking of kerogen and secondary cracking of oil. Based on kinetic simulation with paleo-geothermal data of oil reservoir, the methane produced by cracking of oil asphatene was characterized by relatively light carbon isotopic compositions. This result could not explain relatively heavy carbon isotopic compositions of natural gas from Lunnan area. Pyrolysis of kerogen from source rocks under very high temperatureJIA Wanglu SHUAI Yanhua PENG Ping’an WANG Feiyu XIAO Zhongyao 2004Chinese Science Bulletin2004,49,S1:1
20The design of HEPS global timing system显示文摘Purpose The high energy photon source(HEPS)is a 4th generation synchrotron light source under construction by the institute of high energy physics.The accelerator complex consists of a 500-MeV Linac,a full-energy synchrotron booster,a 6-GeV synchrotron storage ring(SR),and three e-beam transport lines for injection and extraction among accelerators.A global timing system(GTS)covers the timing needs for all accelerator,beamline,and experiment systems.The GTS is designed to coordinate the injection processes and various measurements and protections.Most systems require that the RMS jitter of the GTS signal is less than 30 ps,while the trigger jitters for the electron gun and SR injection and extraction kickers are less than 10 ps.Method The HEPS GTS is an event-based timing system based on MicroTCA.4 hardware architecture.The MicroTCA.4300 series products from the micro-research Finland Oy are implemented in the HEPS GTS system.Results and conclusions The RMS jitter,integrated from 1 Hz to 10 MHz,of the 166.6 MHz event clock is 5.489 ps.The RMS jitter of TTL outputs is less than 30 ps.This paper reports the design of the HEPS GTS,which satisfies all of the HEPS physics requirements for timing with preliminary test results shown.Fang Liu Ge Lei Zhe Duan Cai Meng Chenyan Lu Yanhua Shao Xinpeng Ma Nan Gan Yuemei Peng Jianshe Cao Chungming Chu Yanfeng Sui Jingyi Li IHEP 2021Radiation Detection Technology and Methods2021,5,3:1
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