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65篇 您的检索式:作者名="Yang Weiqing"
    题名 作者 年代 出处 被引量
1Harvesting vibration energy by a triple-cantilever based triboelectric nanogenerator显示文摘摩擦电 nanogenerators (TENG ) ,为基于摩擦电效果收获周围的机械精力的一种唯一的技术,被证明了是为自我动力的系统的一条划算、简单、柔韧的途径。这里,我们为收获颤动精力表明讲道理地设计的三倍伸臂的基于的 TENG。与制作到金皮铜合金陪衬的表面上的 nanowire 数组的帮助,最新设计的 TENG 与 252.3 mW/m2 的山峰功率密度生产开电路的电压直到 101 V 和 55.7 A 的电线走火电流。TENG 系统地为即刻地照亮 40 根商业轻射出的二极管作为直接力量来源被调查并且示威。第一次,一台 TENG 设备为收获颤动精力被设计了,特别在低频率,打开它象一种新精力技术的申请。Weiqing Yang Jun Chen Guang Zhu Xiaonan Wen Peng Bai Yuanjie Su Yuan Lin Zhonglin Wang 2013Nano Research2013,6,12:13
2Signal processing in underwater acoustic communication system for manned deep submersible 'Jiaolong'显示文摘For the first time in the world,underwater acoustic transmission of images,human voice,data and texts between vehicle under 7000 m depth and surface ship was accomplished by underwater acoustic communication system of manned deep submersible 'Jiaolong'.In this paper,signal processing in underwater acoustic communication system for manned deep submersible 'Jiaolong' is introduced.(1) Four communication methods are integrated to meet different needs:1) coherent underwater acoustic communication,with a variable transmission rate from 5 kbps to 15 kbps,to transmit images.2) Non-coherent underwater acoustic communication, with a transmission rate 300 bps,to transmit texts,instructions,and sensor data. 3) Spread spectrum underwater acoustic communication,with a transmission rate 16 bps,to transmit instructions.4) Underwater voice communication,using single sideband modulation to transmit human voice.(2) Signal processing method in coherent communication mainly consists of concatenation of decision feedback equalizer and Turbo decoder,and wavelet based image compression with fixed length coding.In the equalizer,Doppler compensation,multichannel combining and equalizer coefficients updating are all using fast self-optimized adaptive algorithm.(3) A linear hydrophone array is lowered from the mother ship to certain depth, and spatial diversity combining technology is adopted.(4) Diving trials of 'Jiaolong' were carried out in Pacific Ocean.The communication range can cover nearly all ocean depth.One optical/acoustic image can be transmitted in 7 or 14 seconds.ZHU Weiqing ZHU Min WU Yanbo YANG Bo XU Lijun FU Xiang PAN Feng 2013Chinese Journal of Acoustics2013,32,1:7
3Triglycerides and ratio of triglycerides to high-density lipoprotein cholesterol are better than liver enzymes to identify insulin resistance in urban middle-aged and older non-obese Chinese without diabetes显示文摘Sun Yu Li Wenjuan Hou Xinguo Wang Chuan Li Chengqiao Zhang Xiuping Yang Weifang Ma Zeqiang Wang Weiqing Ning Guang Zheng Huizhen Ma Aixia Song Jun Lin Peng Liang Kai Liu Fuqiang Gong Lei Wang Meijian Xiao Juan Yan Fei Yang Junpeng Wang Lingshu Tian Meng Liu Jidong Zhao Ruxing Zhu Ping Chen Li 2014Chinese Medical Journal2014,,10:7
4FEM analyses for influences of stress corrosion and pressure solution on THM coupling in dual-porosity rock mass显示文摘With the models of stress corrosion and pressure solution, by Yasuhara et al., two computation conditions were designed for a hypothetical nuclear waste repository in an unsaturated dual-porosity rock mass: (i) the fracture apertures are changed with the stress corrosion and pressure solution (the porosity of rock matrix is also a function of stress); (ii) the fracture apertures and the porosity of rock matrix are constants. Then the corresponding two-dimensional FEM analyses for the coupled thermohydro-mechanical processes were carried out, and the states of temperatures, rates and magnitudes of aperture closure, pore pressures, flow velocities and stresses in the rock mass were investigated. The results show the followings: The aperture closure rates caused by stress corrosion are almost six orders higher than those caused by pressure solution, and the two kinds of closure rates climb up, then decline, furthermore tend towards stability; the fracture apertures decrease from the original value and tend towards the residual value, and the contact-area ratios of asperities increase also from the original value and tend towards the nominal value; when the effects of stress corrosion and pressure solution are considered, the negative fracture pressures in near field rise very highly; the differences between the magnitudes and distributions of stresses within the rock mass in two calculation cases are very small.ZHANG YuJun ZHANG WeiQing YANG ChaoShuai 2011Science China(Technological Sciences)2011,54,7:5
5Prevalence, risk factors, and survival associated with pulmonary hypertension and heart failure among patients with underlying coronary artery disease: a national prospective, multicenter registry study in China显示文摘Background: Coronary artery disease (CAD) is the commonest cause of heart failure (HF), whereas pulmonary hypertension (PH) has not been established or reported in this patient population. Therefore, we assessed the prevalence, risk factors, and survival in CAD-associated HF (CAD-HF) complicated with PH.Methods: Symptomatic CAD-HF patients were continuously enrolled in this prospective, multicenter registry study. Echocardiography, coronary arteriography, left and right heart catheterization (RHC), and other baseline clinical data were recorded. Patients were followed up and their survival was recorded.Results: One hundred and eighty-two CAD-HF patients were enrolled, including 142 with HF with a preserved ejection fraction (heart failure with preserved ejection fraction [HFpEF];left ventricular ejection fraction [LVEF] ≥50%) and 40 with a reduced ejection fraction (heart failure with reduced ejection fraction [HFrEF];LVEF < 50%). PH was diagnosed with RHC in 77.5% of patients. Patients with PH showed worse hemodynamic parameters and higher mortality. HFrEF-PH patients had worse survival than HFpEF-PH patients. CAD-HF patients with an enlarged left ventricular end-diastolic diameter and reduced hemoglobin were at higher risk of PH. Nitrate treatment reduced the risk of PH. Elevated creatinine and mean pulmonary arterial pressure (mPAP), diastolic pressure gradient (DPG) ≥7 mmHg, and previous myocardial infarction (MI) entailed a higher risk of mortality in CAD-HF patients with PH.Conclusions: PH is common in CAD-HF and worsens the hemodynamics and survival in these patients. Left ventricle enlargement and anemia increase the risk of PH in CAD-HF. Patients may benefit from nitrate medications. Renal impairment, elevated mPAP, DPG ≥7 mmHg, and previous MI are strong predictors of mortality in CAD-HF-PH patients.Trial Registration: ClinicalTrials.gov, NCT02164526.Li Huang Lingpin Pang Qing Gu Tao Yang Wen Li Ruilin Quan Weiqing Su Weifeng Wu Fangming Tang Xiulong Zhu Jieyan Shen Jingzhi Sun Guangliang Shan Changming Xiong Shian Huang Jianguo He 2022Chinese Medical Journal2022,,15:4
6Understanding the Percolation Effect in Triboelectric Nanogenerator with Conductive Intermediate Layer显示文摘Introducing the conductive intermediate layer into a triboelectric nanogenerator(TENG)has been proved as an efficient way to enhance the surface charge density that is attributed to the enhancement of the dielectric permittivity.However,far too little attention has been paid to the companion percolation,another key element to affect the output.Here,the TENG with MXeneembedded polyvinylidene fluoride(PVDF)composite film is fabricated,and the dependence of the output capability on the MXene loading is investigated experimentally and theoretically.Specifically,the surface charge density mainly depends on the dielectric permittivity at lower MXene loadings,and in contrast,the percolation becomes the degrading factor with the further increase of the conductive loadings.At the balance between the dielectric and percolation properties,the surface charge density of the MXene-modified TENG obtained 350%enhancement compared to that with the pure PVDF.This work shed new light on understanding the dielectric and percolation effect in TENG,which renders a universal strategy for the high-performance triboelectronics.Binbin Zhang Guo Tian Da Xiong Tao Yang Fengjun Chun Shen Zhong Zhiming Lin Wen Li Weiqing Yang 2021Research2021,,1:2
7Spanning tree method of identifying isomorphism and topological symmetry to planar kinematic chain with multiple joint显示文摘Song Li Yang Jian Cao Weiqing 2001Chinese Journal of Mechanical Engineering2001,14,1:2
8MXene based mechanically and electrically enhanced film for triboelectric nanogenerator显示文摘The development of triboelectric nanogenerator(TENG)technology which can directly convert ambient mechanical energy into electric energy may affect areas from green energy harvesting to emerging wearing electronics.And,the material of triboelectric layer is critical to the mechanical robustness and electrical output characteristics of the TENGs.Herein,a MXene enhanced electret polytetrafluoroethylene(PTFE)film with a high mechanical property and surface charge density is developed.The MXene/PTFE composite film was synthesized by spraying and annealing treatment.With the doping of MXene,the crystallinity of composite film could be tuned,leading to an enhancement in the tensile property of 450%and reducing the wear volume about 80%in the friction test.Furthermore,the as-fabricated TENG with this composite film outputs 397 V of open-circuit voltage,21µA of short-circuit current,and 232 nC of transfer charge quantity,which are 4,6,and 6 times higher than that of the TENG made by pure PTFE film,respectively.Therefore,this work provides a creative strategy to simultaneously improve the mechanical property and electrical performance of the TENGs,which have great potential in improving device stability under a complex mechanical environment.Yuyu Gao Guoxu Liu Tianzhao Bu Yaoyao Liu Youchao Qi Yanting Xie Shaohang Xu Weili Deng Weiqing Yang Chi Zhang 2021Nano Research2021,14,12:2
9Signal processing for high speed underwater acoustic transmission of image显示文摘一个信号处理方法为高速度在水下图象的声学的传播被介绍。它有二部分。第 1 部分介绍信号处理为在水下声学的协调通讯。第 1 部分包括 3 个技术的点。(1 ) Doppler 移动 compensation.Chirp 信号在数据包裹之间被插入。在二个拷贝关联函数之间的关联进程给吝啬的 Doppler 移动的更多的精确评价。然后,它能被采样补偿数据。在适应决定反馈均衡器(DFE ) 一个适应阶段赔偿者与快,自我优化的最不吝啬的广场(FOLMS ) 改编算法被利用与第二顺序阶段锁环算法比赔偿者导致更好的运动忍耐。吝啬的 Doppler 移动赔偿和适应阶段赔偿者的联合的表演相当好。(2 ) 差异 combiner (DC ) 在均衡器之前使用了。combiner 和适应 DFE 基于 FOLMS 改编算法。这导致减少的计算复杂性和更好的性能。(3 ) 串联了均衡器,涡轮架子编码了调整(TCM ) 解码器和重复算法。一个新 bitsymbol 变换器基于软产量 Viterbi 算法(SOVA ) 被学习。与传统的决定作比较,编码并且印射算法,在将近 2 的新变换器罐头还原剂小点错误率(BER ) 订。第 2 部分主要在一个柔韧的图象压缩算法附近。基于分离小浪变换并且修理了长度编码,为声学的图象的一个柔韧的压缩算法被学习。算法包括 4 个技术的点。(1 ) 利用小浪基于转变图象的 CDF9/7。(2 ) 分析 subband 系数的精力分发。合适的转变层数字是 3。(3 ) 根据他们的精力分发把不同量子化步用于不同 subbands。(4 ) 使用修理了长度编码阻止错误繁殖。结果证明算法在图象质量,压缩率,和大多数之中完成平衡重要,坚韧性到 BER。灰色的规模的压缩的位率声学的图象是 0.85 小点 / 象素。当 BER 比 10-3 低时,图象质量仍然保持好。当 BER 起床到 10-2 时,在那里削减一些小脏点。基于提及的上面的信号处理技术,一在水下声学的通讯系统是运作的频率乐队是的 built.Its (7.5-12.5 ) kHz。它的收到的数组是 8 元素制服线性数组。为串联均衡器和 Turbo-TCM 解码器的 QPSK 和 8PSK 调整和重复算法基于难 SOVA 被使用。系统在卡恩道·莱克被测试了。当数据率是 10 kbps 时,低 BER 在 5.5 km 范围被完成。一幅灰色的规模图象能在 7 s 被播送。它的通讯距离和数据率的产品是 55 km kbps。ZHU Weiqing ZHU Min WANG Junwei HUANG Haiyun YANG Bo XU Lijun ZHAO Liang 2009Chinese Journal of Acoustics2009,28,1:2
10Purification and Characterization of the Glucoside 3-Dehydrogenase Produced by a Newly Isolated Sphingobacterium faecium ZJF-D6 CCTCC M 2013251显示文摘Jian-Fen Zhang Bo Yang Weiqing Chen Jing Chen 2014Applied Biochemistry and Biotechnology2014,,8:1
11Structure and biochemical properties of PRL-1, a phosphatase implicated in cell growth, differentiation, and tumor invasion 显示文摘Sun Jinping Wang Weiqing Yang Heyi 2005Biochemistry2005,44,12:1
12Piezoresistive effect in MoO3 nanobelts and its application in strain-enhanced oxygen sensors显示文摘有不同性质的 MoO3 nanobelts (NB ) 经由物理蒸汽免职(PVD ) 被综合了方法。NB 的结晶的结构和形态学被 X 光检查衍射,传播电子显微镜学和扫描电子显微镜学描绘。电的大小被执行,在 MoO3 的深刻 piezoresistive 效果试验性地学习了并且验证。影响计量器因素的因素例如 NB 尺寸,做的集中和空气作文,被讨论并且分析。煤气的察觉到性能也在设备被测试,由把紧张用于煤气的传感器,它的察觉到的表演能有效地被调节并且提高,这被表明。这研究在 MoO3 NB 和另外的电子调整测量负担得起更好的设备性能和更宽广的材料功能的这效果能借助于被结合的通用机制的第一幅插图提供重要 piezoresistivity 的第一示范。Xiaonan Wen Weiqing Yang Yong Ding Simiao Niu Zhong Lin wang 2014Nano Research2014,7,2:1
13Identification of isomorphism for kinematic chains using incident degree and incident degree code显示文摘LUO Yufeng YANG Tingli CAO Weiqing 1991Chinese Journal of Mechanical Engineering1991,27,2:1
14Identificatiion of Spatial Kinematic Chains Using incident degree and incident degree code 显示文摘LUO Yufeng YANG Tingli CAO Weiqing 0,,02:1
15From high-yield Ti3AlCN ceramics to high-quality Ti3CNTx MXenes through eliminating Al segregation显示文摘Ti3CNTx MXenes with unique electrical conductivity can be widely applied for supercapacitors and electromagnetic shielding.However,its relatively low-yield quaternary nitrogen-containing Ti3AlCN ce ramics precursor(less than 50%),due to the inevitable Al segregation during the synthesizing process,significantly hindered its widely commercial applications.Herein,we employed the controllable AlNoversaturation precursor strategy to precisely tune the phase transition point of quaternary Ti3AlCN ceramics to obtain high-yield Ti3 AlCN precursor for the purpose of high conductivity Ti3 CNTx MXenes.Combined energy dispersive X-ray spectrometer(XRD)with X-ray photoelectron spectroscopy(XPS)characterizations,the yield of the quaternary nitrogen-containing Ti3 AlCN ceramics was evidently proved to be up to 70%,which is 1.4 times than that of previously reported works.Such relatively highyield quaternary Ti3AlCN is mainly ascribed to the elimination of Al segregation.Based on it,we further developed accordion-like two-dimensional(2D)MXene via hydrofluoric acid etch and vacuum freezedry.This novel accordion-like 2D Ti3CNTx MXene possesses high electrochemical capacitive properties(209 F/g).Therefore,this controllable AlN-oversaturation precursor strategy will pave a way to exploit costly high-yield MAX ceramics precursor for high conductivity MXenes and also play a powerful role in promoting their practical applications including electrical and magnetic engineering fields.Ningjun Chen Haichao Huang Zhong Xu Yanting Xie Da Xiong Xiang Chu Bingni Gu Bo Zheng Weili Deng Haitao Zhang Weiqing Yang 2020Chinese Chemical Letters2020,31,4:1
16Spanning tree method of identifying isomorphism and topological symmetry to planar kinematic chain with multiple joint显示文摘SONG Li YANG Jian CAO Weiqing 2001Chinese Journal of Mechanical Engineering2001,14,1:1
17Spanning tree method of identifying isomorphism and topological synmetry to planar kinematic chain with multiple joint显示文摘Song Li Yang Jian Cao Weiqing 2001Chinese Journal of Mechanical Engineering2001,14,1:1
18Triboelectrification based motion sensor for human-machine interfacing显示文摘Yang Weiqing Chen Jun Wen Xiaonan 2014Applied Materials&Interfaces2014,6,10:1
19MicroRNA-21 targets LRRFIP1 and contributes to VM-26 resistance in glioblastoma multiforme显示文摘Yiming Li Weiqing Li Yongji Yang Yicheng Lu Cheng He Guohan Hu Huimin Liu Juxiang Chen Jin He Hongyu Yu 2009Brain Research2009,,:1
20Antisynchronization in coupled chaotic oscillators 显示文摘Liu Weiqing Qian Xiaolan Yang Junzhong 2006Physics Letters A2006,354,:1
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