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33篇 您的检索式:作者名="Yongbin Yan"
    题名 作者 年代 出处 被引量
1DBPM signal processing with field programmable gate arrays显示文摘DBPM system performance is determined by the design and implementation of beam position signal processing algorithm.In order to develop the system,a beam position signal processing algorithm is implemented on FPGA.The hardware is a PMC board ICS-1554A-002(GE Corp.)with FPGA chip XC5VSX95T.This paper adopts quadrature frequency mixing to down convert high frequency signal to base.Different from conventional method,the mixing is implemented by CORDIC algorithm.The algorithm theory and implementation details are discussed in this paper.As the board contains no front end gain controller,this paper introduces a published patent-pending technique that has been adopted to realize the function in digital logic.The whole design is implemented with VHDL language. An on-line evaluation has been carried on SSRF(Shanghai Synchrotron Radiation Facility)storage ring.Results indicate that the system turn-by-turn data can measure the real beam movement accurately,and system resolution is 1.1μm.LAI Longwei LENG Yongbin YI Xing YAN Yingbing ZHANG Ning YANG Guisen WANG Baopeng XIONG Yun 2011Nuclear Science and Techniques2011,22,3:10
2Development of the bunch-by-bunch beam current acquisition system at SSRF显示文摘In this paper,we report the development of a bunch-by-bunch beam current acquisition system.Through a waveform-reconstruction algorithm,the system realizes high equivalent sampling rate with a relatively low inherent rate.Based on the EPICS environment,information communication with other systems can be achieved.Preliminary test results in commissioning the SSRF storage ring show that the system can reconstruct the beam waveform of single bunch,providing a convenient and reliable method for the top-up operation in the future.HUANG Siting LENG Yongbin YAN Yingbing 2009Nuclear Science and Techniques2009,20,2:4
3Study of algorithms of phase advance measurement between BPMs and its application in SSRF显示文摘As a third generation light source, Shanghai Synchrotron Radiation Facility (SSRF) has up to 140 beam position monitors (BPM) installed to monitor the beam dynamics on its storage ring. Once the operation mode is chosen, the betatron functions are determined. Since the sinusoidal betatron oscillation is the dominant component of the transverse motion, these BPMs can be used to measure the motion to get the betatron functions. Three methods are compared to calculate the phase advance among the BPMs in this paper, aiming to find one or more feasible ways to check the beam optics in SSRF. Some experiments have also been made to verify the practicality of the phase information.CHEN Zhichu LENG Yongbin YUAN Renxian YAN Yingbing ZHOU Weimin 2013Nuclear Science and Techniques2013,24,1:4
4A beam position measurement system of fully digital signal processing at SSRF显示文摘This fully digital beam position measurement instrument is designed for beam position monitoring and machine research in Shanghai Synchrotron Radiation Facility. The signals received from four position-sensitive detectors are narrow pulses with a repetition rate up to 499.654 MHz and a pulse width of around 100 ps, and their dynamic range could vary over more than 40 dB in machine research. By the employment of the under-sampling technique based on high-speed high-resolution A/D conversion, all the processing procedure is performed fully by the digital signal processing algorithms integrated in one single Field Programmable Gate Array. This system functions well in the laboratory and commissioning tests, demonstrating a position resolution (at the turn by turn rate of 694 kHz) better than 7 μm over the input amplitude range of -40 dBm to 10 dBm which is well beyond the requirement.YAN Han ZHAO Lei LIU Shubin CHEN Kat WU Weihao AN Qi LENG Yongbin YI Xing YAN Yingbing LAI Longwei 2012Nuclear Science and Techniques2012,23,2:3
5Cotransplantation of haploidentical hematopoietic and umbilical cord mesenchymal stem cells for severe aplastic anemia: Successful engraftment and mild GVHD显示文摘Yamei Wu Yongbin Cao Xiaohong Li Lixin Xu Zhihong Wang Pei Liu Pei Yan Zhouyang Liu Jing Wang Shuang Jiang Xiaoxiong Wu Chunji Gao Wanming Da Zhongchao Han 2014Stem Cell Research2014,,1:3
6The Zα domain of fish PKZ facilitates the B-Z conformational transition of oligonucleotide DNAs with d(GC), inserts显示文摘PKZ (象 PKR 一样) 在鱼作为 elF2 kinase 家庭的一个成员被发现,它在 C 终端并且也拥有 eIF2 kinase 的一个保存催化领域在 N 终端的二个 Z-DNA-binding 领域(Z1 和 Z2 ) 。PKZ 能通过 Z 的绑定被激活到 Z-DNA。然而, PKZ Z 的规章的功能仍然保持不清楚。调查 PKZ Z 怎么与 Z-DNA 交往的分子的机制,我们在 Escherichia coli 罗塞达碑紧张表示了 Z 多肽 Z12 并且在 Ni-NTA 上由亲密关系层析净化了树脂。oligonucleotide DNA 与的不同长度各种各样插入,也就是 d (GC ) n (n = 6, 8, 10, 13 ) , d (TA ) n (n = 6, 10 ) , non-d (GC ) ,和 non-d (TA ) ,被设计并且综合。圆形的二色性光谱和胶化活动性移动试金被用来在不同 oligonucleotide DNA 的 conformational 转变上调查 Z12 的效果。结果证明 oligonucleotide DNA 当 Z12 不在时保留了常规 B-DNA 符合构造。与 Z12 滴定的增加的数量, d (GC ) n 被认出并且在某种程度上把符合构造变换成 Z-DNA。与增加重复数字(从 n = 6 到 n = 13 ) , conformational 转变的趋势变得更明显。然而,有 n 插入的 d (TA ) 的 oligonucleotides 的符合构造面对 Z12 有点变化了,并且 Z12 没在有 non-d (GC ) 或 non-d (TA ) 的 oligonucleotides 的转变插入的 conformational 上有效果。胶化活动性移动试金进一步证明 Z12 能与 d (GC ) 绑在 oligonucleotide 10。换句话说, Z12 能与 n 插入到 Z-DNA 符合构造的 d (GC ) 转 oligonucleotides 并且与高亲密关系绑在它。Puzhong Lu Shoulong Deng Youlin Zhu Yongbin Yan Yong Liu Chengyu Hu 2012Acta Biochimica et Biophysica Sinica2012,44,11:3
7Baseline recovery method to measure bunch charge under low-current mode of SSRF显示文摘The top-up injection mode of Shanghai Synchrotron Radiation Facility(SSRF) needs precise measurement of the beam bunch charges.This is performed by an integration current transformer,but the beam current is too low to neglect the background noise.In order to wipe out the noise coming from the ground loops,the adaptable polynomial fitting method is used to extract the baseline,instead of using the constant background or the linear background model. Test results show that the system resolution can be improved to <3%.CHEN Zhichu LENG Yongbin ZOU Yi YAN Yingbin ZHOU Weimin 2011Nuclear Science and Techniques2011,22,5:3
8The Zα domain of fish PKZ converts DNA hairpin with d(GC)n inserts to Z-conformation显示文摘PKZ,蛋白质 kinase 包含 Z-DNA 领域,是脊椎动物 eIF2 kinase 家庭的一个新奇成员。在 N 终点在 C 终点和二个 Z-DNA 有约束力的领域(Z1 和 Z2 ) 包含一个催化领域, PKZ 能通过 Z 的绑定被激活到 Z-DNA。然而, PKZ Z 的规章的功能尚待被证实。这里,蛋白质被表示在 DNA conformational 转变,野类型的 Z1Z2 和 11 异种上理解 PKZ Z 的影响并且净化。同时, DNA hairpinsd (GC ) 的几不同长度 nT4 (GC ) n (n = 26 ) 并且 RNA hairpinr (GC ) 6T4 (GC ) 6 被综合。这些合成 DNA 或 RNA 发卡的符合构造上的 Z1Z2 和变异的蛋白质的效果被使用圆形的二色性光谱和胶化活动性移动试金调查。结果证明 DNA 发卡当 Z1Z2 不在时保留了常规 B-DNA 符合构造,当一些 DNA 发卡(n3 ) 在 Z1Z2 正式就职下面被变换成 Z 符合构造时。趋势按比例与 GC 重复的增加的数量被联系。与 Z1Z2 比较, Z1Z1 而非 Z2Z2 在变换 d (GC ) 显示了一个更高的能力 6T4 (GC ) 6 从 B- 到 Z-DNA。这些结果证明那 Z1 子域比 Z2 子域在 BZ conformational 转变的过程起了一个更必要的作用。变异的蛋白质(K34A, N38A, R39A, Y42A, P57A, P58A,和 W60A ) 不能变换 d (GC ) 6T4 (GC ) 6 进 Z-DNA,而 S35A 或 K56A 保留了一些部分活动。有趣地, Z1Z2 也能导致 r (GC ) 6T4 (GC ) 从 A 符合构造的 6 RNA 到在适当条件下面的 Z 符合构造。Puzhong Lu Shoulong Deng Chuxin Wu Youlin Zhu Yong Liu Gang Lin Yongbin Yan Chengyu Hu 2013Acta Biochimica et Biophysica Sinica2013,45,12:2
9Monitoring the charge bunch-by-bunch for the SSRF storage ring:Development and application显示文摘Bunch charge uniformity controlling is very important for top-up operation of the storage ring.In order to monitor filling pattern and measure the bunch charge precisely,a PXI waveform digitizer-based data acquisition system has been developed to retrieve bunch charge information from BPM pickup signals.An effective sampling rate is extended to 400 GHz by waveform rebuilding technology,which overlays multi-turn data into single turn with real time sampling rate of 8 GHz.An on-line evaluation indicates that resolution and linearity of the charge measurement are better than 0.5% at input range of 0.5-12nC.LENG Yongbin YAN Yingbin YU Luyang YUAN Renxian CHEN Zhichu ZHOU Weimin 2010Nuclear Science and Techniques2010,21,4:2
10Three-dimensional solution structure of ω-conotoxin SO_(3) determined by ^(1)H NMR显示文摘Cone snails (Conus) elaborate a series of conotoxin (CTX) peptides in their venoms to paralyze their prey. Among these toxins, w-CTX抯 specifically target to presynaptic voltage-gated calcium channel subsets, causing inhibition of neurotransmitter release. w-CTX SO3 was isolated from the venom of Conus striatus, which is the only available fish-hunting snail near the coast of the South China Sea. The three-dimensional solution structure of w-CTX SO3, a peptide which is the only w-conotoxin reported to show high homology with another w-CTX (MVIIA from C. Magus), has been determined by 1H NMR techniques. The molecular structure of w-CTX SO3 is stabilized by three disulfide bridges and a short triple-stranded antiparallel b-sheet with four turns. A comprehensive comparison suggested that the backbone conformation of w-CTXs was quite conserved, while the length of b-sheet and the type of some turns might have minor differences.YAN Yongbin TU Guangzhong LUO Xuechun DAI Qiuyun HUANG Peitang ZHANG Riqing 2003Chinese Science Bulletin2003,48,11:2
11Particle Image Velocimetry Experimental and Computational Investigation of a Blood Pump显示文摘Blood pumps have been adopted to treat heart failure over the past decades.A novel blood pump adopting the ro-tor with splitter blades and tandem cascade stator was developed recently.A particle image velocimetry (PIV) experiment was carried out to verify the design of the blood pump based on computational fluid dynamics (CFD) and further analyze the flow properties in the rotor and stator.The original sized pump model with an acrylic housing and an experiment loop were constructed to perform the optical measurement.The PIV testing was car-ried out at the rotational speed of 6952±50 r/min with the flow rate of 3.1 l/min and at 8186±50 r/min with 3.5 l/min,respectively.The velocity and the Reynolds shear stress distributions were investigated by PIV and CFD,and the comparisons between them will be helpful for the future blood pump design.Xiaochen Yang Xingmin Gui Hui Huang Yongbin Shen Ziwen Yu Yan Zhang 2012Journal of Thermal Science2012,21,3:2
12Performance evaluation of BPM sys- tem in SSRF using PCA method显示文摘CHEN Zhichu LENG Yongbin YAN Ying- bing 2014Chinese Physics C2014,38,08:1
13Preparation and characterization of water-blown polyurethane foams from liquefied cornstalk polyol显示文摘Yongbin Yan Hao Pang Xiaoxu Yang 0,,2:1
14Production of a high dispersion of silver nanoparticles on surface-functional- ized multi-walled carbon nanotubes using an electrostatic tech- nique显示文摘Yan Dongsheng Wang Feng Zhao Yongbin 2009Materials Letters2009,63,2:1
15Fluorescent Red GK as a fluorescent probe for selective detection of bisulfite anions显示文摘Jianbin Chao Yan Zhang Hongfang Wang Yongbin Zhang Fangjun Huo Caixia Yin Liping Qin Yu Wang 2013Sensors & Actuators: B. Chemical2013,,:1
16Permutation entropy:a nonlinear statistical measure for status characterization of rotary machines显示文摘Yan Ruqiang Liu Yongbin Gao X 2012Mechanical Systems and Signal Processing2012,29,5:1
17The prevalence of soil transmitted helminths and its infuential factors in Shandong Province, China: an analysis of surveillance data from 2016 to 2020显示文摘Background Soil-transmitted helminths(STHs)were previously endemic in Shandong Province,China.This study aimed to analyze the STHs prevalence trend and the natural,social,and human cognitive and behavioural factors infuencing the discrepancies between high and low infection levels from 2016 to 2020 in Shandong Province in eastern China.Methods STHs surveillance data of Shandong Province from 2016 to 2020 were obtained from China Information Management System for Prevention and Control of Parasitic Diseases.STHs infections were detected by modifed Kato–Katz method.Comprehensive information on the natural and social factors,STHs-related knowledge and behaviours were collected through questionnaire surveys.Retrospective spatial scan analysis was performed using SaTScan v10.1 to evaluate any identifed spatial clusters of STHs infection for statistical signifcance and Bayes discriminant analysis was used to discriminate the high or low infection groups of the villages.Results In total,72,160 participants were involved in our survey from 2016 to 2020.The overall STHs prevalence rate was 1.13%,with the eastern region of Shandong Province having the highest rate(2.02%).The predominant species was T.trichiura,with the prevalence rate of 0.99%and the≥70-year age group possessed the highest rate of 2.21%.The STHs prevalence rate showed an annual linear downward trend from 2016 to 2020(χ_(trend)^(2) =127.600,P<0.001).Respondents aged≥60 years had the lowest awareness level of STHs-related prevention knowledge(all P<0.05),and were the most likely to adopt the practice of fertilizing with fresh stool(χ^(2)=28.354,P<0.001).Furthermore,the southern region demonstrated the highest temperature and rainfall level and the lowest GNP and annual net income per capita(all P<0.05).Conclusions There is a remarkable declining in STHs prevalence in Shandong Province from 2016 to 2020.However,the prevalence rates of STHs especially T.trichiura in the southern and eastern regions were still high,and the elderly were more susceptible to be infected with STHs owning to their low awareness level of STHS-related prevention knowledge and high adoption rate of dangerous production and living behaviours.Integrated approaches of health education,environment improvement and behaviour change should be strengthened to obtain a further reduction of STHs prevalence in China.Yan Xu Yongbin Wang Longjiang Wang Xiangli Kong Ge Yan Yuejin Li Cancan Bu Benguang Zhang 2023Infectious Diseases of Poverty2023,12,3:1
18ERCC1 expression levels predict the outcome of platinum-based chemotherapies in advanced bladder cancer: a meta-analysis显示文摘Shan Li Junrong Wu Yongbin Chen Weizhong Tang Qiliu Peng Yan Deng Li Xie Jian Wang Shan Huang Ruolin Li Xue Qin Jinmin Zhao 2014Anti-Cancer Drugs2014,,:1
19Design and implementation of a mobile GIS for field data collection显示文摘Yan Yongbin Yu Jia Wu Jianping IEEE World Congress on Computer Science and Information Engineering0,,:1
20Hyperproduction of polyesters consisting of medium-chain-length hydroxyalkanoate monomers by strain Pseudomonas stutzeri 1317显示文摘Jianzhong Xi Qiong Wu Yongbin Yan Zengming Zhang Peter H.F. Yu Man-ken Cheung Riqing Zhang Guo-Qiang Chen 2000Antonie van Leeuwenhoek2000,,1:1
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