|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Force-induced charge carrier storage:a new route for stress recording显示文摘Stress sensing is the basis of human-machine interface,biomedical engineering,and mechanical structure detection systems.Stress sensing based on mechanoluminescence(ML)shows significant advantages of distributed detection and remote response to mechanical stimuli and is thus expected to be a key technology of next-generation tactile sensors and stress recorders.However,the instantaneous photon emission in ML materials generally requires real-time recording with a photodetector,thus limiting their application fields to real-time stress sensing.In this paper,we report a force-induced charge carrier storage(FICS)effect in deep-trap ML materials,which enables storage of the applied mechanical energy in deep traps and then release of the stored energy as photon emission under thermal stimulation.The FICS effect was confirmed in five ML materials with piezoelectric structures,efficient emission centres and deep trap distributions,and its mechanism was investigated through detailed spectroscopic characterizations.Furthermore,we demonstrated three applications of the FICS effect in electronic signature recording,falling point monitoring and vehicle collision recording,which exhibited outstanding advantages of distributed recording,longterm storage,and no need for a continuous power supply.The FICS effect reported in this paper provides not only a breakthrough for ML materials in the field of stress recording but also a new idea for developing mechanical energy storage and conversion systems. | Yixi Zhuang Dong Tu Changjian Chen Le Wang Hongwu Zhang Hao Xue Conghui Yuan Guorong Chen Caofeng Pan Lizong Dai Rong-Jun Xie | 2020 | Light(Science & Applications)2020，9，1： | 10 |
| 2 | Changes of plasma C-reactive protein in patients with craniocerebral injury before and after hyperbaric oxygenation: A randomly controlled study显示文摘BACKGROUND: Plasma inflammatory factor, such as C-reactive protein, whose content is regarded as a sensitively pathological marked protein and quantitative indexes of central nervous system injury, has been paid more and more attention in clinic. OBJECTIVE: To observe the effects and clinical significance of C-reactive protein in patients with craniocerebral injury after hyperbaric oxygenation. DESIGN: Randomized controlled study. SETTING: Departments of Neurosurgery, Laboratory and Hyperbaric Oxygen, the Second Affiliated Hospital, Medical College of Shantou University. PARTICIPANTS: A total of 60 patients with craniocerebral injury were selected from Department of Neurosurgery, the Second Affiliated Hospital, Medical College of Shantou University from October 2006 to April 2007. There were 37 males and 23 females and the mean age was 26 years. All subjects were certainly diagnosed as history of craniocerebral injury. Patients hospitalized at 24 hours after injury, Glasgow Coma Score ranged from 3 to 12 points, and all patients were certainly diagnosed with CT or MR scanning. Patients and their relatives provided confirmed consent. All the subjects were randomly divided into hyperbaric oxygenation group and control group with 30 in each group. METHODS: Patients in the control group were treated with routinely neurosurgical therapy after hospitalization; however, based the same basic treatment in the control group, patients in the hyperbaric oxygenation group received hyperbaric oxygenation by using iced-wheel four-door 2-cabin air-compression chamber (made in Yantai) from 24 hours to 10 days after operation or injury. After entering the cabin, patients who had a clear consciousness breathed the oxygen by using face mask; contrarily, patients directly breathed the oxygen. Therapeutic project: Expression was increased for about 15–20 minutes, maintained for about 70–80 minutes, and decreased for 20 minutes. Otherwise, pressure was maintained from 0.2 to 0.25 MPa. Hyperbaric oxygenation took an hour for once a day and 10 times were regarded as a course. Venous blood was collected before treatment and on the next day of the first course end. Content of C-reactive protein in plasma was measured with immune turbidimetry in hyperbaric oxygenation group; in addition, content of C-reactive protein in plasma was directly measured with the same method at the corresponding time in the control group. If the content was less or equal to 8 mg/L, it was regarded as normal value. Effects of the two groups were evaluated based on Glasgow Coma Score before and after treatment. MAIN OUTCOME MEASURES: Content of plasma C-reactive protein and Glasgow Coma Score in the two groups before and after treatment. RESULTS: All 60 patients were involved in the final analysis. ① Content of plasma C-reactive protein: The two contents were obviously higher than normal value after craniocerebral injury. There was no significant difference in the two groups before treatment (P > 0.05), but both contents were decreased after treatment, and there was significant difference between HBOT group and control group after treatment (t =4.756, P < 0.01). In addition, there was significant difference in hyperbaric oxygen therapy group before and after treatment (t =5.236, P < 0.01). ② Glasgow Coma Score: There was no significant difference in the two groups before treatment (P > 0.05), but scores were increased in both groups after treatment (t =9.92, 2.51, P < 0.01, 0.05); on the other hand, therefore, there was significant difference between the two groupsafter treatment (t =9.21, P < 0.01). CONCLUSION: Hyperbaric oxygenation can remarkably decrease content of plasma C-reactive protein in patients with craniocerebral injury at the phase of stress. | Zeyu Xie Minghua Zhuang Lan Lin Hongwu Xu Linxing Chen Lina Hu | 2007 | Neural Regeneration Research2007，2，5： | 9 |
| 3 | Fine-grained and heterogeneous proxy re-encryption for secure cloud storage显示文摘Cloud is an emerging computing paradigm.It has drawn extensive attention from both academia and industry.But its security issues have been considered as a critical obstacle in its rapid development.When data owners store their data as plaintext in cloud,they lose the security of their cloud data due to the arbitrary accessibility,specially accessed by the un-trusted cloud.In order to protect the confidentiality of data owners’cloud data,a promising idea is to encrypt data by data owners before storing them in cloud.However,the straightforward employment of the traditional encryption algorithms can not solve the problem well,since it is hard for data owners to manage their private keys,if they want to securely share their cloud data with others in a fine-grained manner.In this paper,we propose a fine-grained and heterogeneous proxy re-encryption(FHPRE)system to protect the confidentiality of data owners’cloud data.By applying the FH-PRE system in cloud,data owners’cloud data can be securely stored in cloud and shared in a fine-grained manner.Moreover,the heterogeneity support makes our FH-PRE system more efficient than the previous work.Additionally,it provides the secure data sharing between two heterogeneous cloud systems,which are equipped with different cryptographic primitives. | Peng Xu Hongwu Chen Deqing Zou Hai Jin | 2014 | Chinese Science Bulletin2014，59，32： | 9 |
| 4 | Biodegradation of nicosulfuron by a novel Alcaligenes faecalis strain ZWS11显示文摘A bacterial strain ZWS11 was isolated from sulfonylurea herbicide-contaminated farmland soil and identified as a potential nicosulfuron-degrading bacterium. Based on morphological and physicochemical characterization of the bacterium and phylogenetic analysis of the 16 S r RNA sequence, strain ZWS11 was identified as Alcaligenes faecalis. The effects of the initial concentration of nicosulfuron, inoculation volume, and medium p H on degradation of nicosulfuron were investigated. Strain ZWS11 could degrade 80.56% of the initial nicosulfuron supplemented at 500.0 mg/L under the conditions of p H 7.0, 180 r/min and30°C after incubation for 6 days. Strain ZWS11 was also capable of degrading rimsulfuron,tribenuron-methyl and thifensulfuron-methyl. Four metabolites from biodegradation of nicosulfuron were identified, which were 2-aminosulfonyl-N, N-dimethylnicotinamide(M1), 4, 6-dihydroxypyrimidine(M2), 2-amino-4, 6-dimethoxypyrimidine(M3) and2-(1-(4,6-dimethoxy-pyrimidin-2-yl)-ureido)-N,N-dimethyl-nicotinamide(M4). Among the metabolites detected, M2 was reported for the first time. Possible biodegradation pathways of nicosulfuron by strain ZWS11 were proposed. The degradation proceeded mainly via cleavage of the sulfonylurea bridge, O-dealkylation, and contraction of the sulfonylurea bridge by elimination of a sulfur dioxide group. The results provide valuable information for degradation of nicosulfuron in contaminated environments. | Weisong Zhao Chen Wang Li Xu Chunqing Zhao Hongwu Liang Lihong Qiu | 2015 | Journal of Environmental Sciences2015，27，9： | 9 |
| 5 | Unsteady Tip Clearance Flow in an Isolated Axial Compressor Rotor显示文摘The paper investigates effects of operating conditions, tip clearance sizes and external unsteady excitations on the unsteady tip clearance flow in an isolated axial compressor rotor by unsteady 3D Navier-Stokes simulations. The results show that the unsteady tip clearance vortex takes a periodic flow behavior in the rotor tip region. With the decrease of the flow coefficient, the unsteady tip clearance vortex is enhanced and its frequency becomes lower. A larger tip clearance size can cause bigger unsteady fluctuation amplitude and a lower fluctuation frequency of the tip clearance vortex at the near stall operating condition. The unsteady excitation with the natural frequency of the tip clearance vortex can enhance the unsteadiness of the tip clearance vortex and improve the overall rotor performance. The frequency of the unsteady tip clearance vortex is independent of external unsteady excitations with different frequencies. | Hongwu ZHANG Xiangyang DENG Jingyi CHEN Weiguang HUANG | 2005 | Journal of Thermal Science2005，14，3： | 9 |
| 6 | AN ADAPTIVE ALGORITHM OF PRECISE INTEGRATION FOR TRANSIENT ANALYSIS显示文摘This paper present an improved precise integration algorithm for transient analysis of heattransfer and some other problems.The original precise integration method is improved by mean of the inve-rse accuracy analysis so that the parameter N,which has been taken as a constant and an independent pa-rameter without consideration of the problems in the original method,can be generated automatically by thealgorithm itself.Thus,the improvde algorithm is adaptive and the accucacy of the algorithm is not dependenton the length of the time step in the integration process.It is shown that the numerical results obtained by themethod proposed are more accurate than those obtained by the conventional time integration methods such asthe difference method and others.Four examples are given to demonstrate the validity,accuracy and effi-ciency of the new method. | Zhang Hongwu Chen Biaosong gu Yuanxian | 2001 | Acta Mechanica Solida Sinica2001，14，3： | 8 |
| 7 | Image formation of brain function in patients suffering from knee osteoarthritis treated with moxibustion显示文摘OBJECTIVES:Functional magnetic resonance imaging(fMRI) technology was used to study changes to the resting state blood flow in the brains of patients with knee osteoarthritis(KOA) before and after treatment with moxibustion at the acupoint of the left Dubi(ST 35) and to probe the cerebral mechanism underlying the effect of moxibustion.METHODS:The resting state brain function of 30 patients with left KOA was scanned with fMRI before and after treatment with moxibustion.The analytic methods of fractional amplitude of low frequency fluctuation(fALFF) and regional homogeneity(ReHo) were used to observe changes in resting state brain function.RESULTS:The fALFF values of the right cerebrum,extra-nucleus,left cerebellum,left cerebrum and white matter of patients after moxibustion treatment were higher than before treatment,and the fALFF values of the precentral gyrus,frontal lobe and occipital lobe were lower than before treatment(P<0.05,K≥85).The ReHo values of the thalamus,extra-nucleus and parietal lobe of patients were much higher than those before moxibustion treatment,and the ReHo values of the right cerebrum,left cerebrum and frontal lobe were lower than before treatment(P<0.05,K≥85).CONCLUSION:The influence of moxibustion on obvious changes in brain regions basically conforms to the way that pain and warmth is transmitted in the body,and the activation of sensitive systems in the body may be objective evidence of channel transmission.The regulation of brain function by moxibustion is not in a single brain region but rather in a network of many brain regions. | Hongwu Xie Fangming Xu Rixin Chen Tianyou Luo Mingren Chen Weidong Fang Fajin Lü Fei Wu Yune Song Jun Xiong | 2013 | Journal of Traditional Chinese Medicine2013，33，2： | 7 |
| 8 | Numerical Simulation on the Effect of Tip Clearance Size on Unsteadiness in Tip Clearance Flow显示文摘有三种不同尖端清理尺寸的尖端清理流动的摇摆数字地在这篇论文被调查。NASA 转子 67 被选择为计算模型。尖端清理的尺寸什么时候等于,被发现在所有模仿的案例之中,摇摆存在或比设计尖端清理尺寸大。相对全部的压力系数轮廓显示由尖端漏流动的影响的那个区域以固定集体流动率随尖端清理尺寸的增加扩充。在转子尖端区域的静态的压力分发的根吝啬的方形的轮廓被提供为设计尖端清理(1.1%尖端弦)说明那最强壮的波动 区域在前缘附近位于片的压力方面,当时为更大的尖端清理(2.2%尖端弦),它在在冲击波和尖端漏流动之间的相互作用的区域。 | Juan Du Feng Lin Hongwu Zhang Jingyi Chen | 2008 | Journal of Thermal Science2008，17，4： | 5 |
| 9 | Effect of burden and origin sites of premature ventricular contractions on left ventricular function by 7-day Holter monitor显示文摘Recent studies have shown that premature ventricular contractions(PVCs) could enlarge the heart,but its risk factors are incompletely understood as a single 24-hour recording cannot reflect the true PVC burden due to day-to-day variability.Our purpose was to investigate the effect of burden and origin sites on left ventricular(LV) function in patients with PVCs by 7-day Holter electrocardiography(ECG).From May 2012 to August2013,112 consecutive patients with PVCs were recruited from the authors' affiliated hospital.All patients received2-dimensional transthoracic echocardiography,12-lead routing ECG and 7-days Holter ECG.Serum N-terminal probrain natriuretic peptide(NT-proBNP) levels were measured.A total of 102 participants with PVCs were included in the final analysis.Origin of PVCs from the tricuspid annulus had the highest burden and NT-proBNP level.LV papillary muscle had a higher LV ejection fraction(EF) level and a lower LV end-systolic dimension(ESD) than other PVC foci(P<0.05).The high burden group had a higher LV end-diastolic dimension(EDD) and LVESD but lower LVEF than the other two groups(P<0.05).Female,older age,physical work,and history of PVCs had a significantly positive correlation with symptoms.Male,older age,physical work,and high burden were positive predictors of enlarged LVEDD,LVESD and higher serum NT-proBNP level,but lower LVEF.Seven-day dynamic ECG Holter monitor showed the true PVC burden on patients with PVCs.PVCs with a lower burden or origin from the LV papillary muscle and the fascicle were relatively benign,while PVCs with a higher burden or origin from the tricuspid annulus may lead to cardiac dysfunction. | Wenhua Xu Mingfang Li Minglong Chen Bing Yang Daowu Wang Xiangqing Kong Hongwu Chen Weizhu Ju Kai Gu Kejiang Cao Hailei Liu Qi Jiang Jiaojiao Shi Yan Cui Hong Wang | 2015 | The Journal of Biomedical Research2015，29，6： | 4 |
| 10 | Blade Parameterization and Aerodynamic Design Optimization for a 3D Transonic Compressor Rotor显示文摘现在的纸为与快速的 3D 片和格子生成器( RAPID3DGRID )相结合的 turbomachinery 的空气动力学的设计描述优化方法论,一个 N.S 解答者,一个片 parameterization 方法( BPM ),一个基于坡度的 analyseparameterization 方法( GPAM ),有激增的一个反应表面方法( RSM )算法和一个简单坡度方法。由片 parameterization 方法的使用,一个接近音速的压缩机转子能被一套多项式表示,然后它使我们能转变表示坐标的片数据到表示参数然后减少参数的数字。与改变任何一个参数,我们能获得几组样品。这里,仅仅十个参数被认为寻找一个优化压缩机转子。由于优化,断热的效率被 1.73% 增加。 | Naixing Chen Hongwu Zhang Yanji Xu Weiguang Huang Institute of Engineering Thermophysics,Chinese Academy of Sciences,P.O.Box 2706,Beijing 100080,CHINA.E-mail:nxc@mail.etp.ac.cn Fax:+8610-62573335 | 2007 | Journal of Thermal Science2007，16，2： | 4 |
| 11 | HGF percutaneous endocardial injection induces cardiomyocyte proliferation and rescues cardiac function in pigs显示文摘Objective:To investigate the effect of cardiomyocyte proliferation induced by human hepatocyte growth factor(HGF)in pigs with chronic myocardial infarction(CMI).Methods:A steerable,deflectable 7F catheter incorporating a 27-guage needle was advanced percutaneously to the left ventricular myocardium of 18 pigs with CMI.Pigs were randomized(1:1:1)to receive adenoviral vector HGF(total dose,1×1010 genome copies),which was administered as five injections into the infarcted myocardium(total,1.0 mL),or saline,or Ad-null(control groups).Injections were guided by Ensite NavX left ventricular electroanatomical mapping.HGF and cyclin proteins were detected by western blot and immunoprecipitation analysis.Histological and immunohistochemical analysis determined proliferating cardiomyocytes.Myocardial perfusion and cardiac function were estimated by Gated-Single Photon Emission Computed Tomography(G-SPECT).Results:Western blot analyses showed that HGF were predominantly expressed in the infarct core and border in the myocardium of the infarcted heart.G-SPECT analysis indicated that the HGF group had better cardiac function and myocardial perfusion four weeks after the injection of Ad-HGF than before the injection of Ad-HGF.After treatment there were more proliferating cardiomyocytes in the HGF group compared to either of the control groups.Furthermore,the HGF group myocardial samples expressed higher levels of p-Akt,cyclin A,cyclin E,cyclin D1,cdk2,cdk4 than those in the control groups.Conclusion:The over-expression of HGF activates pro-survival pathways,induces cardiomyocyte proliferation,and improves the perfusion and function of the porcine CMI heart. | Zhengxian Tao Bo Chen Yingming Zhao Hongwu Chen Liansheng Wang Yonghong Yong Kejiang Cao Qifeng Yu Danian Ke` Hua Wang Zuze Wu Zhijian Yang | 2010 | The Journal of Biomedical Research2010，24，3： | 3 |
| 12 | Geometry Effects on Aerodynamics Performance of a Low Aspect Ratio Turbine Nozzle显示文摘This paper describes the influence of some geometric parameters on aerodynamics performance of a low-aspect-ratio turbine blading designed by a novel method developed at the Institute of Engineering Thermophysics, Chinese Academy of Sciences. This is a part of the study on aerodynamics optimization of turbomachinery. It follows the development of the basic ideas in the turbomachinery aerodynamics research project at the institute. The present paper concentrates mainly on the effects of geometry, such as stagger angle, leading and trailing edge thickness, maximum thickness and its location on adiabatic efficiency, total pressure ratio and mass flow rate. The study was performed and assessed for a low-aspect ratio turbine nozzle using 3D steady Reynolds-averaged N.S. solver. Using the knowledge of the flow physics analysis an optimized turbine nozzle was obtained. | Naixing Chen Hongwu Zhang Yanji Xu Weiguang Huang | 2004 | Journal of Thermal Science2004，13，4： | 3 |
| 13 | Integrated Heat and Power Dispatch Model for Wind-CHP System with Solid Heat Storage Device Based on Robust Stochastic Theory显示文摘这份报纸与瞄准最小化系统煤消费的稳固的热存储设备(SHS ) 为 wind-CHP 系统造了联合的热和电源(CHP ) 派遣模型,并且作为操作限制给了系统要求供应平衡和单位操作条件。而且,柔韧的随机的优化理论被用来描述风电源产量无常。模拟结果证明 SHS 们增加了山峰山谷变能力和减少的放弃的风从 12% ~ 6% 评估的 CHP,并且减少了 5% 煤消费,与由灵活收费电力的原来的系统操作相比并且加热。在 wind-CHP 系统雇用 SHS 的回报时期比 SHS 们期望服务生活的远短。 | LI Huanhuan TAN Zhongfu CHEN Hongtao GUO Hongwu | 2018 | Wuhan University Journal of Natural Sciences2018，23，1： | 2 |
| 14 | PARAMETRIC VARIATIONAL PRINCIPLE BASED ELASTIC-PLASTIC ANALYSIS OF COSSERAT CONTINUUM显示文摘一个新算法为 Cosserat 连续统的有弹性塑料的分析基于参量的变化原则被开发。经典有弹性塑料的问题的管理方程被在常规连续统力学把自由的旋转的度加到自由的常规翻译的度调整。Cosserat 理论的参量的势能原则被开发,从哪个 Cosserat 理论的有限元素明确的表达和相应参量的二次的编程模型被构造。种类本地化问题被计算,网孔独立人士结果被获得。 | Zhang Hongwu Wang Hui Chen Biaosong Xie Zhaoqian | 2007 | Acta Mechanica Solida Sinica2007，20，1： | 2 |
| 15 | Circumferential Propagation of Tip Leakage Flow Unsteadiness for a Low-Speed Axial Compressor显示文摘Full-annulus three-dimensional unsteady numerical simulations were conducted for a low-speed isolated axialcompressor rotor, intending to identify the behavior of self-induced unsteady tip leakage flow within multi-bladepassages. There is a critical mass flow rate near stall point, below it, the self-induced unsteadiness of tip leakageflow can propagate circumferentially and thus initiates two circumferential waves. Otherwise, the self-inducedunsteady tip leakage flow oscillates synchronously in each single blade passage. The major findings are: 1) whilethe self-induced unsteadiness of tip leakage flow is a single-passage phenomenon, there exist phase shifts amongblade passages in multi-passage environments then evolving into the first short length wave propagating at abouttwo times of rotor rotation speed after the transient period ends; and 2) the time traces of the pseudo sensors locatedon the rotor blade tips reveal another much longer length-scale wave modulated with the first wave due tophase shift propagating at about half of rotor rotation speed. Features of the short and long length-scale circumferentialwaves are similar to those of rotating instability and modal wave, respectively. | Shaojuan Geng Feng Lin Jingyi Chen Hongwu Zhang Lei He | 2009 | Journal of Thermal Science2009，18，3： | 2 |
| 16 | Study on Aerodynamic Design Optimization of Turbomachinery Blades显示文摘这份报纸在作者在设计 Thermophysics 的研究所开发的 turbomachinery blading 的气体动力学设计优化上描述学习,中国科学院,在最近的很少期间年。现在的纸描述主要怎么为计算使用介绍 3D blading 并且格子产生的一条快速的途径上的方面,一快、精确粘滞计算方法和包括一个片 parameterization 算法空气动力学地优化 turbomachinery blading 的适当优化方法论。任何片配置能被三条曲线表示,他们是拱势线,厚度分布和光线的叠线,然后片几何学能是容易由有三个多项式的很多个参数的 parameterized。基于坡度的 parameterization 分析方法和一个反应表面方法为片优化此处被使用。优化过程为 turbomachinery 向可靠设计提供合理计算时间,这被发现。关键词空气动力学的设计优化 - 反应表面方法 - 片 parameterization - turbomachinery CLC 数字 TK14 的 3D | Naixing CHEN Hongwu ZHANG Weiguang HUANG Yanji XU | 2005 | Journal of Thermal Science2005，14，4： | 2 |
| 17 | Effect of magnetic field of arc chamber and operating mechanism on current limiting characteristics of low voltage circuit breakers 显示文摘 | CHEN Degui LIU Hongwu SUN Haitao | 2003 | IEICE Transactions on Electronics2003，86，6： | 1 |
| 18 | Adaptive synchronization between two complex networks with nonidentical topological structures显示文摘 | TANG Hongwu CHEN Liang LU Junan | 2008 | Physica A2008，387，22： | 1 |
| 19 | Melt metal sheet breaking mechanism of close- coupled gas atomization 显示文摘 | OUYANG Hongwu HUANG Baiyun CHEN Xin | 2005 | Trans Nonferrous Met Soe China2005，15，5： | 1 |
| 20 | Imaging and Spectrum Diagnostics of Air Arc Plasma Characteristics 显示文摘 | LI Xingwen CHEN Degui LIU Hongwu | 2004 | IEEE Trans on Plasma Sci2004，32，6： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员