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| 1 | Rapid repair of severely earthquake-damaged bridge piers with flexural-shear failure mode显示文摘An experimental study was conducted to investigate the feasibility of a proposed rapid repair technique for severely earthquake-damaged bridge piers with flexural-shear failure mode. Six circular pier specimens were first tested to severe damage in flexural-shear mode and repaired using early-strength concrete with high-fluidity and carbon fiber reinforced polymers (CFRP). After about four days, the repaired specimens were tested to failure again. The seismic behavior of the repaired specimens was evaluated and compared to the original specimens. Test results indicate that the proposed repair technique is highly effective. Both shear strength and lateral displacement of the repaired piers increased when compared to the original specimens, and the failure mechanism of the piers shifted from flexural-shear failure to ductile flexural failure. Finally, a simple design model based on the Seible formulation for post-earthquake repair design was compared to the experimental results. It is concluded that the design equation for bridge pier strengthening before an earthquake could be applicable to seismic repairs after an earthquake if the shear strength contribution of the spiral bars in the repaired piers is disregarded and 1.5 times more FRP sheets is provided. | Sun Zhiguo Wang Dongsheng Du Xiuli Si Bingjun | 2011 | Earthquake Engineering and Engineering Vibration2011,10,4: | 7 |
| 2 | Acetyl salicylic acid attenuates cardiac hypertrophy through Wnt signaling显示文摘室的肥大是心血管的疾病的事件的一个强大、独立的预言者。低剂量的乙酰水杨酸酸(阿司匹林) 的脉管的性质通过血小板 cyclooxygenase 的不可逆的抑制提供心血管的好处 1;然而,可能的 anti-hypertrophic 性质和阿司匹林的潜在的机制没详细被调查。在这研究,健康野类型的雄的老鼠随机被划分成三个组并且使遭到了到横向的大动脉的收缩(TAC ) 或假冒的操作。操作 TAC 的老鼠与低剂量的阿司匹林的人的等价物被对待(10 mg 吗? | Samuel Chege Gitau Xuelian Li Dandan Zhao Zhenfeng Guo Haihai Liang Ming Qian Lifang Lv Tianshi Li Bozhi Xu Zhiguo Wang Yong Zhang Chaoqian Xu Yanjie Lu Zhiming Du Hongli Shan Baofeng Yang | 2015 | Frontiers of Medicine2015,9,4: | 6 |
| 3 | Elastic Scattering of 7Be on Pb Target显示文摘 | Yang Yanyun Wang Jiansong Wang Qi Huang Meirong Ma Junbing Ma Peng Cao Xiguang Han Jianlong Bai Zhen Jin Shilong Hu Qiang Jin Lei Chen Jiangbo Zhang Xueying Chen Ruofu Hu Zhengguo Xu Shiwei Zhen Chuan Xu Zhiguo Xu Hushan Duan Liming Sun Zhiyu Chen Zhiqiang He Jianjun Li Songlin Lei Xiangguo Fu Fen Zhang Xueheng Yuan Xiaohua Du Chengming Yan Xinshuang Hu Jun Tang Shuwen Ye Ruiping Yang Kun Shi Fudong Zhang Wei Chen Ze Li Long Xu Xing Liu Longxiang Zhang Liyong Lin Qingyun Gou Boxing Xu Ge Zhou Xionghong Zhang Yuhu Xiao Guoqing | 2011 | IMP & HIRFL Annual Report2011,,1: | 4 |
| 4 | Influence of Temperature and Frequency on Microwave Dielectric Properties of Lunar Regolith Simulant显示文摘The dielectric constant of the lunar regolith can directly influence the reflection coefficient and the trans-mission coefficient of the Moon′s surface, and plays an important role in the Moon research. In order to study the di-electric properties of the lunar regolith, the lunar regolith simulant was made according to the making procedure of the CAS-1 simulant made by Chinese Academy of Sciences. Then the dielectric constants of the lunar regolith simulant were measured with 85070E Aiglent Microwave Network Analyzer in the frequency ranging from 0.2 GHz to 20.0 GHz and at temperature of 25.1℃, 17.7℃, 13.1℃, 11.5℃, 9.6℃, 8.0℃, 4.1℃, -0.3℃, -4.7℃, -9.5℃, -18.7℃, -27.7℃, and -32.6℃, respectively. The Odelevsky model was employed to remove the influence of water in the air on the final effective dielectric constants. The results indicate that frequency and temperature have apparent influences on the dielectric constants of the lunar regolith simulant. The real parts of the dielectric constants increase fast over the range of 0.2 GHz to 3.0 GHz, but decrease slowly over the range of 4.0 GHz to 20.0 GHz. The opposite phenomenon occurs in the imaginary parts. The influences of the frequency and temperature on the brightness temperature were also estimated based on the radiative transfer equation. The result shows that the variation of the frequency and temperature results in great changes of the microwave brightness temperature emitting from the lunar regolith. | MENG Zhiguo CHEN Shengbo DU Xiaojuan EDWARD Matthew Osei Jnr LU Peng WANG Zijun | 2011 | Chinese Geographical Science2011,21,1: | 3 |
| 5 | Review on retrieval of lunar regolith thickness by active and passive microwave measurements显示文摘It is one of the important methods to retrieve lunar regolith thickness using active and passive microwave techniques.The retrieval of lunar regolith thickness is based on microwave radiation transfer process simulation in the regolith media.The lunar regolith model is first introduced,and the features of the involved physical parameters are indicated thereafter,such as dielectric constants,surface roughness,particle size and thermal grads of the lunar regolith.The time delay and the migration of the radar echoes from the different interfaces is the key problem for active microwave measurement.And the simulation of the microwave radiative transfer in the regolith media is the important technique for the passive microwave measurement.The important parameters and the physical mechanism for the two measurements are also presented. | Zhiguo MENG Shengbo CHEN Cai LIU Xiaojuan DU Tao MENG Zijun WANG Hang LU | 2008 | Global Geology2008,11,2: | 3 |
| 6 | Mechanisms of chromatin-based epigenetic inheritance显示文摘Multi-cellular organisms such as humans contain hundreds of cell types that share the same genetic information(DNA sequences),and yet have different cellular traits and functions.While how genetic information is passed through generations has been extensively characterized,it remains largely obscure how epigenetic information encoded by chromatin regulates the passage of certain traits,gene expression states and cell identity during mitotic cell divisions,and even through meiosis.In this review,we will summarize the recent advances on molecular mechanisms of epigenetic inheritance,discuss the potential impacts of epigenetic inheritance during normal development and in some disease conditions,and outline future research directions for this challenging,but exciting field. | Wenlong Du Guojun Shi Chun-Min Shan Zhiming Li Bing Zhu Songtao Jia Qing Li Zhiguo Zhang | 2022 | Science China(Life Sciences)2022,65,11: | 2 |
| 7 | Fast Cryomediated Dynamic Equilibrium Hydrolysates towards Grain Boundary-Enriched Platinum Scaffolds for Efficient Methanol Oxidation显示文摘Although platinum nanocrystals have been considered as potential electrocatalysts for methanol oxidation reaction(MOR)in fuel cells,the large-scale practical implementation has been stagnated by their limited abundance,easy poisoning,and low durability.Here,grain boundary-enriched platinum(GB-Pt)scaffolds are produced in large scale via facilely reducing fast cryomediated dynamic equilibrium hydrolysates of platinum salts.Such plentiful platinum grain boundaries are originated from the fast fusion of short platinum nanowires during reduction of the individually and homogeneously dispersed platinum intermediates.These grain boundaries can provide abundant active sites to efficiently catalyze MOR and meanwhile enable to oxidize the adsorbed poisonous CO during the electrocatalytic process.As a consequence,the as-synthesized GB-Pt scaffolds exhibit an impressively high mass activity of 1027.1 mA mgPt^(−1) for MOR,much higher than that of commercial Pt/C(345.2 mA mgPt^(−1)),as well as good stability up to 5000 cycles.We are confident that this synthetic protocol can be further extended to synthesize various grain boundary-enriched metal scaffolds with broad applications in catalysis. | Chao Zhang Huajie Huang Jianan Gu Zhiguo Du Bin Li Songmei Li Shubin Yang | 2019 | Research2019,,1: | 2 |
| 8 | Coverage of 13-Valent Pneumococcal Conjugate Vaccine Among Children 0–15 Months of Age—9 Provinces,China,2019–2021显示文摘Summary What is already known on this topic?Limited data exist regarding the coverage of the 13-valent pneumococcal conjugate vaccine(PCV13)in China.A lack of official statistics,coupled with an insufficient body of published literature,hinders the accurate depiction of the current situation.What is added by this report?This study investigated the utilization of PCV13 and estimated its coverage in nine provinces across eastern,central,and western China between 2019 and 2021.Despite an annual increase in PCV13 usage during this period,the overall coverage remained suboptimal. | Lijun Liu Zhaonan Zhang Xixi Zhang Changsha Xu Yifan Song Li Li Jiakai Ye Zhiguo Wang Hui Liang Weiyan Zhang Ling Lin Ning Li Shujun Zhang Qianli Ma Wen Du Yongzhuo Jiao Lingsheng Cao Qi Qi Lei Cao Wenzhou Yu | 2023 | China CDC weekly2023,5,17: | 1 |
| 9 | Cloud com- puting: an overview显示文摘 | Qian Ling Luo Zhiguo Du Yujian | 2009 | Lecture Notes in Computer Science2009,5931,1: | 1 |
| 10 | Construction of polysulfides defense system for greatly improving the long cycle life of metal sulfide anodes for sodium-ion batteries显示文摘Metal sulfides are promising anode materials for sodium ion batteries(SIBs)due to their high theoretical specific capacity and abundant source.Nevertheless,significant challenges,including large volume change,sluggish Na^(+)transport kinetics and polysulfides intermediates,have greatly affect their long cycle stability.Unfortunately,the majority of current studies only focus on the first two aspects,but lack of sufficient attention and insights into the effect of polysulfides intermediates.Here,a porous of CoS_(x)(P-CoS_(x))electrode material is fabricated as an example to investigate the influence of polysulfides on its cycling performance.The results show that polysulfides cause a slight loss of reversible capacity during the battery cycling,while the failure of the battery is due to its significant fluctuations in reversible capacity after extensive cycles.Detailed analyses demonstrate that the intense fluctuation in capacity originates from the faster growth of dendrites caused by the reaction of sodium polysulfides with sodium foil and/or the reaction of elemental sulfur with sodium foil to penetrate the separator,resulting in a local short circuit.To suppress these undesirable side reaction,N,S co-doped porous carbon tubes(N,S-PC)rich in C–S and C–N bonds have been added to adsorb polysulfides and alleviate their reaction with sodium foil.As a result,the capacity of the P-CoS_(x) electrode with N,S-PC(P-CoS_(x)/N,S-PC)remains stable without significant fluctuations for 1000 cycles,which is much better than that of the pure P-CoS_(x) electrode(intense fluctuation in capacity after 320 cycles).Our work offers insights into the crucial influence of polysulfides on the cycle performance of the P-CoS_(x) anode and provides a feasible strategy to prolong the cycle life of metal sulfide anode for SIBs. | Xucai Yin Yang Ren Libin Wu Zhiguo Zhang Chunyu Du Jiajun Wang Gepin Yin Hua Huo | 2022 | Journal of Energy Chemistry2022,31,8: | 1 |
| 11 | Glucose馨lowering activity of novel tetrasaccharide glyceroglycolipids from the fruits of Cu-curbita moschata显示文摘 | Jiang Zhiguo Du Qizhen | 2011 | Bioorganic & Medicinal Chemistry Letters2011,21,: | 1 |
| 12 | Synthesis and upconversion luminescence properties of Yb^3+/Er^3+ codoped BaGd2 ( MoO4 ) 4 powder 显示文摘 | Du Haiyan Lan Yujing Xia Zhiguo | 2009 | Materials Research Bulletin2009,44,8: | 1 |
| 13 | Fast algorithm of image matching based on projection显示文摘 | Du Zhiguo Bo Ruifeng Han Yan | 2000 | Journal of Test and Measurement Technology of NCIT2000,14,1: | 1 |
| 14 | Daintain/AIF-1 promotes breast cancer cell migration by up-regulated TNF-α via activate p38 MAPK signaling pathway显示文摘 | Tao Li Zhiguo Feng Shaohui Jia Wei Wang Zhongxia Du Ning Chen Zhengwang Chen | 2012 | Breast Cancer Research and Treatment2012,,3: | 1 |
| 15 | Luminescence properties of Ba2Mg(BO3)2:Eu^2+ red phosphors synthesized by a microwave- assisted sol–gel route 显示文摘 | DU Haiyan SUN Jianfeng XIA Zhiguo | 2009 | J Electrochem Soc2009,156,36: | 1 |
| 16 | A perspective on high-entropy two-dimensional materials显示文摘In past decades,high-entropy(HE)materials,containing five or more elements with approximately equal atomic ratio,are extensively investigated due to their desirable properties in a series of applications.Recently,HE two-dimensional(2D)materials have become promising materials,which not only endow the advantages from their bulk form but also exhibit unusual properties due to their 2D features.So far,the HE 2D transition metal carbides(MXenes),dichalcogenides(TMDs),hydrotalcites(LDHs),and oxides have been successfully synthesized and performed well in different electrochemical reactions,which is originated from the synergistic effect of multicomponents and atomic thin characteristics.Here,the challenges on processing,characterization,and property predictions of HE 2D materials are emphasized.Finally,viable strategies,advanced processing,fundamental understanding,in-depth characterization of new HE 2D materials are proposed. | Yanglansen Cui Yongzheng Zhang Zhenjiang Cao Jianan Gu Zhiguo Du Bin Li Shubin Yang | 2022 | SusMat2022,2,1: | 1 |
| 17 | Glucose-lowering activity of novel tetrasaccharide glyceroglycolipids from the fruits of Cucurbita moschata显示文摘 | Zhiguo Jiang Qizhen Du | 2011 | Bioorganic&Medicinal Chemistry Letters2011,21,: | 1 |
| 18 | 苦参碱对HepG2细胞杀伤作用及机制研究(英文)显示文摘Objective: To investigate the death mode of human hepatoma cells exposed to matrine and the role of glutathione (GSH) and cytochrome c. Methods: The MTT test and Cell Death Detection ELISA were used to identify cell death mode and viability of cells exposed to matrine. The volume of intracellular GSH was detected by GSH reductase. Finally Western blotting was chosen to analyze the expression of cytochrome c and Caspase-9 in HepG2 cells treated by matrine. Results: The apop-totic cell death induced by matrine in Hep G2 cells dramatically increased in the time-, dose-dependent manner. Matrine can exhaust intracellular GSH effectively to change the redox state in cells. Furthermore it affect the cytotoxicity of matrine. Re-sults of Western blotting showed that matrine induced the release of cytochrome c from mitochondria to cytoplasm, and then stimulate the cleavage of Caspase-9 in a time-dependent manner. Conclusion: Matrine induced apoptosis in Hep G2 cells through the mitochondrial pathway, and oxidative stress via depletion of GSH is directly involved in the apoptotic process. | Xiangdong Cheng Yian Du Ling Huang Zhiming Jing Zhiguo Zheng | 2008 | The Chinese-German Journal of Clinical Oncology2008,7,4: | 1 |
| 19 | Cloud Computing: An Overview显示文摘 | Ling Qian Zhiguo Luo Yujian Du Leitao Guo | 2009 | Springer Berlin / Heidelberg2009,,5931: | 1 |
| 20 | Cloud computing: an overview显示文摘 | Qian Ling Luo Zhiguo Du Yujian | 2009 | Lecture Notes in Com- puter Science2009,5931,1: | 1 |