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| 1 | Biocompatibility of bio-Mg-Zn alloy within bone with heart, liver, kidney and spleen显示文摘A magnesium-zinc alloy rod was implanted into the marrow cavity of the distal femur in New Zealand rabbits. The femur with the implanted alloy was compared with the contralateral femur in which a bone tunnel without implant was formed as a control. Degradation of the magnesium-zinc alloy was analyzed via X-ray, scanning electron microscopy, and element energy spectrum analysis. Serum magnesium, liver and kidney function tests, and myocardial enzymes were measured. Heart, liver, kidney and spleen were sectioned for pathological analysis, and the effects of the implanted material on the histology and function of important organs were analyzed. Magnesium-zinc alloy was resorbed from the bone marrow cavity of the femur; 87% of the alloy was degraded within 14 weeks after the surgery. There were no significant differences in serum magnesium, liver or kidney function tests, or myocardial enzymes be- fore the surgery and after degradation of the magnesium-zinc alloy. Histology of the heart, liver, kidney, and spleen did not change. This study demonstrated that magnesium-zinc alloy can be resorbed in bone, and that the degradation products have good biocompatibility with heart, liver, kidney, and spleen. | HE YaoHua TAO HaiRong ZHANG Yan JIANG Yao ZHANG ShaoXiang ZHAO ChangLi LI JiaNan ZHANG BeiLei SONG Yang ZHANG XiaoNong | 2009 | Chinese Science Bulletin2009，54，3： | 18 |
| 2 | Experimental investigations on the heat transfer characteristics of micro heat pipe array applied to flat plate solar collector显示文摘This paper introduces a novel flat plate solar collector(FPC) using micro heat pipe array(MHPA) as a key element.To analyze the thermal transfer behavior of flat plate solar collector with micro heat pipe array(MHPA-FPC),an indoor experiment for thermal transfer characteristic of MHPA applied to FPC was conducted by using an electrical heating film to simulate the solar radiation.Different cooling water flow rates,cooling water temperatures,slopes,and contact thermal resistances between the condenser of MHPA and the heat exchanger were tested at different heating powers.The experimental results indicate that MHPA-FPC exhibits the enhanced heat transfer capability with increased cooling water flow rate and temperature.Total thermal resistance has a maximum decline of approximately 10% when the flow rate increases from 180 to 360 L h 1 and 38% when the cooling water temperature increases from 20℃ to 40℃.When the inclination angle of MHPA-FPC exceeds 30°,the slope change has a negligible effect on the heat transfer performance of MHPA-FPC.In addition,contact thermal resistance significantly affects the heat transfer capability of MHPA-FPC.The total thermal resistances lowers to nearly half of the original level when contact material between the condenser of MHPA and the heat exchanger changes from conductive silicone to conductive grease.These results could provide useful information for the optimal design and operation of MHPA-FPC. | DENG YueChao QUAN ZhenHua ZHAO YaoHua WANG LinCheng | 2013 | Science China(Technological Sciences)2013，56，5： | 17 |
| 3 | NEW TECHNOLOGY FOR FAULT DIAGNOSIS BASED ON WAVELET DENOISING AND MODIFIED EXPONENTIAL TIME-FREQUENCY DISTRIBUTION显示文摘Fast wavelet multi-resolution analysis (wavelet MRA) provides a effective tool for analyzing and canceling disturbing components in original signal. Because of its exponential frequency axis, this method isn’t suitable for extracting harmonic components. The modified exponential time-frequency distribution ( MED) overcomes the problems of Wigner distribution( WD) ,can suppress cross-terms and cancel noise further more. MED provides high resolution in both time and frequency domains, so it can make out weak period impulse components fmm signal with mighty harmonic components. According to the 'time' behavior, together with 'frequency' behavior in one figure,the essential structure of a signal is revealed clearly. According to the analysis of algorithm and fault diagnosis example, the joint of wavelet MRA and MED is a powerful tool for fault diagnosis. | Wang Xinqing,Wang Yaohua,Qian Shuhua,Chen Liuhai (Engineering College of PLA University of Science and Technology) Xu Yanshen,Zhao Xiangsong (Tianjin University) | 2001 | Chinese Journal of Mechanical Engineering2001，14，3： | 13 |
| 4 | Approximation by randomly weighting method in censored regression model显示文摘Censored regression ('Tobit') models have been in common use, and their linear hypothesis testings have been widely studied. However, the critical values of these tests are usually related to quantities of an unknown error distribution and estimators of nuisance parameters. In this paper, we propose a randomly weighting test statistic and take its conditional distribution as an approximation to null distribution of the test statistic. It is shown that, under both the null and local alternative hypotheses, conditionally asymptotic distribution of the randomly weighting test statistic is the same as the null distribution of the test statistic. Therefore, the critical values of the test statistic can be obtained by randomly weighting method without estimating the nuisance parameters. At the same time, we also achieve the weak consistency and asymptotic normality of the randomly weighting least absolute deviation estimate in censored regression model. Simulation studies illustrate that the per-formance of our proposed resampling test method is better than that of central chi-square distribution under the null hypothesis. | WANG ZhanFeng WU YaoHua ZHAO LinCheng | 2009 | Science China Mathematics2009，52，3： | 6 |
| 5 | Research on an Mg–Zn alloy as a degradable biomaterial显示文摘 | Shaoxiang Zhang Xiaonong Zhang Changli Zhao Jianan Li Yang Song Chaoying Xie Hairong Tao Yan Zhang Yaohua He Yao Jiang Yujun Bian | 2009 | Acta Biomaterialia2009，，2： | 5 |
| 6 | Inference of change-point in single index models显示文摘Single index models are widely used in medicine, econometrics and some other fields. In this paper, we consider the inference of a change point problem in single index models. Based on density-weighted average derivative estimation (ADE) method, we propose a statistic to test whether a change point exists or not. The null distribution of the test statistic is obtained using a permutation technique. The permuted statistic is rigorously shown to have the same distribution in the limiting sense under both null and alternative hypotheses. After the null hypothesis of no change point is rejected, an ADE-based estimate of the change point is proposed under assumption that the change point is unique. A simulation study confirms the theoretical results. | CAO GuanQun WANG ZhanFeng WU YaoHua ZHAO LinCheng | 2008 | Science China Mathematics2008，51，10： | 3 |
| 7 | Experimental study on the new type of electrical storage heater based on flat micro-heat pipe arrays显示文摘A new type of electrical storage heater that utilizes latent heat storage and flat micro-heat pipe arrays(FMHPAs) was developed.The thermal characteristics of the heater were tested through experimentation. The structure and operating principle of the storage heater were expounded. Three rows of FMHPAs were applied(three rows with five assemblies each) with a mass of 28 kg of phase change material(PCM) in the heat storage tank. Electric power was supplied to the PCM in the range of 0.2-2.04 kW, and air was used as heat transfer fluid, with the volume flow rate ranging from 40-120 m^3/h. The inlet temperature was in the range of15-24℃. The effects of heating power, air volume flow rate, and inlet temperature were investigated. The electrical storage heater exhibited efficiencies of 97% and 87% with 1.98 and 1.30 kW of power during charging and discharging, respectively. Application of the proposed storage heater can transfer electricity from peak periods to off-peak periods, and the excess energy generated by wind farms can be stored as heat and released when needed. Good economic and environmental benefits can be obtained. | wang zeyu diao yanhua zhao yaohua liang lin wang tengyue | 2018 | Science China(Technological Sciences)2018，61，2： | 3 |
| 8 | Experimental study on visualization of the flow field in microtube显示文摘An experimental study was conducted to visualize the flow field and confirm the transitional Reynolds number from laminar to turbulent flow, as distilled water flows through quartz glass microtubes with inner diameter 315 and 520 μm. With gentian violet as colorant, the flow field pictures in the microtube, and therefore, is shot by a CCD camera with a microscope at different Reynolds numbers. Pressure drop data were also used to characterize the friction factor for those microtubes in the Reynolds number range of 200―2300. The experimental results clearly showed that the flow in the microtube was the laminar state and the friction factors agreed well with the Poiseuille equations when the Reynolds number was low. As the Reynolds number was larger than 1200 and 1500 for the microtube with inner diameter 315 and 520 μm, respectively, the friction factor departed from the classical laminar solution due to the earlier transition from laminar to turbulent flow. The flow turned into full turbulent when the Reynolds number reached 1500―1800. | LIU Zhigang ZHAO Yaohua | 2005 | Science China(Technological Sciences)2005，48，5： | 3 |
| 9 | Recent progress in perovskite solar cells:material science显示文摘Perovskite solar cells represent a promising third-generation photovoltaic technology with low fabrication cost and high power conversion efficiency.In light of the rapid development of perovskite materials and devices,a systematic survey on the latest advancements covering a broad range of related work is urgently needed.This review summarizes the recent major advances in the research of perovskite solar cells from a material science perspective.The discussed topics include the devices based on different type of perovskites(organic-inorganic hybrid,all-inorganic,and lead-free perovskite and perovskite quantum dots),the properties of perovskite defects,different type of charge transport materials(organic,polymeric,and inorganic hole transport materials and inorganic and organic electron transport materials),counter electrodes,and interfacial materials used to improve the efficiency and stability of devices.Most discussions focus on the key progresses reported within the recent five years.Meanwhile,the major issues limiting the production of perovskite solar cells and the prospects for the future development of related materials are discussed. | Jiang-Yang Shao Dongmei Li Jiangjian Shi Chuang Ma Yousheng Wang Xiaomin Liu Xianyuan Jiang Mengmeng Hao Luozheng Zhang Chang Liu Yiting Jiang Zhenhan Wang Yu-Wu Zhong Shengzhong(Frank)Liu Yaohua Mai Yongsheng Liu Yixin Zhao Zhijun Ning Lianzhou Wang Baomin Xu Lei Meng Zuqiang Bian Ziyi Ge Xiaowei Zhan Jingbi You Yongfang Li Qingbo Meng | 2023 | Science China Chemistry2023，66，1： | 3 |
| 10 | Progress in octahedral spherical hohlraum study显示文摘In this paper,we give a review of our theoretical and experimental progress in octahedral spherical hohlraum study.From our theoretical study,the octahedral spherical hohlraums with 6 Laser Entrance Holes(LEHs)of octahedral symmetry have robust high symmetry during the capsule implosion at hohlraum-to-capsule radius ratio larger than 3.7.In addition,the octahedral spherical hohlraums also have potential superiority on low backscattering without supplementary technology.We studied the laser arrangement and constraints of the octahedral spherical hohlraums,and gave a design on the laser arrangement for ignition octahedral hohlraums.As a result,the injection angle of laser beams of 50°-60°was proposed as the optimum candidate range for the octahedral spherical hohlraums.We proposed a novel octahedral spherical hohlraum with cylindrical LEHs and LEH shields,in order to increase the laser coupling efficiency and improve the capsule symmetry and to mitigate the influence of the wall blowoff on laser transport.We studied on the sensitivity of the octahedral spherical hohlraums to random errors and compared the sensitivity among the octahedral spherical hohlraums,the rugby hohlraums and the cylindrical hohlraums,and the results show that the octahedral spherical hohlraums are robust to these random errors while the cylindrical hohlraums are the most sensitive.Up till to now,we have carried out three experiments on the spherical hohlraum with 2 LEHs on Shenguang(SG)laser facilities,including demonstration of improving laser transport by using the cylindrical LEHs in the spherical hohlraums,spherical hohlraum energetics on the SGIII prototype laser facility,and comparisons of laser plasma instabilities between the spherical hohlraums and the cylindrical hohlraums on the SGIII laser facility. | Ke Lan Jie Liu Zhichao Li Xufei Xie Wenyi Huo Yaohua Chen Guoli Ren Chunyang Zheng Dong Yang Sanwei Li Zhiwen Yang Liang Guo Shu Li Mingyu Zhang Xiaoying Han Chuanlei Zhai Lifei Hou Yukun Li Keli Deng Zheng Yuan Xiayu Zhan Feng Wang Guanghui Yuan Haijun Zhang Bobin Jiang Lizhen Huang Wei Zhang Kai Du Runchang Zhao Ping Li Wei Wang Jingqin Su Xuewei Deng Dongxia Hu Wei Zhou Huaiting Jia Yongkun Ding Wanguo Zheng Xiantu He | 2016 | Matter and Radiation at Extremes2016，1，1： | 2 |
| 11 | In vitro degradation, hemolysis and MC3T3-E1 cell adhesion of biodegradable Mg–Zn alloy显示文摘 | Shaoxiang Zhang Jianan Li Yang Song Changli Zhao Xiaonong Zhang Chaoying Xie Yan Zhang Hairong Tao Yaohua He Yao Jiang Yujun Bian | 2009 | Materials Science & Engineering C2009，，6： | 2 |
| 12 | The miR166 mediated regulatory module controls plant height by regulating gibberellic acid biosynthesis and catabolism in soybean显示文摘MicroRNAs(miRNAs)are endogenous small noncoding RNAs that play critical roles in regulating plant growth and development.Here,we used Short Tandem Target Mimic(STTM)technology to generate soybean(Glycine max(L.)Merr.)miRNA knockdown lines and identify miRNAs that regulate plant height,a key agronomic trait that affects yield.STTM166 successfully silenced miR166 in soybean and upregulated the expression of miR166 target genes,such as ATHB14-LIKE.The miR166 knockdown lines(GmSTTM166)displayed a reduced plant height phenotype.Moreover,GmSTTM166 plants contained lower levels of bioactive gibberellic acid(GA3)than wild-type plants,and application of exogenous GA partially rescued the dwarf phenotype of GmSTTM166.Knockdown of miR166 altered the expression of genes involved in GA biosynthesis and catabolism.Further analysis revealed that ATHB14-LIKE directly represses transcription of the GA biosynthesis genes Gm GA1 and Gm GA2,while activating transcription of the GA catabolic gene GIBBERLLIN 2 OXIDASE2(GmGA2ox2).Collectively,these results reveal a pivotal role for miR166 in the genetic control of plant height in soybean,thereby providing invaluable insights for molecular breeding to improve soybean yield. | Chen Zhao Jingjing Ma Yaohua Zhang Suxin Yang Xianzhong Feng Jun Yan | 2022 | Journal of Integrative Plant Biology2022，64，5： | 1 |
| 13 | Performance simulation and optimization of new radiant floor heating based on micro heat pipe array显示文摘This paper proposes two new radiant floor heating structures based on micro heat pipe array(MHPA),namely cement-tile floor and keel-wood floor.The numerical models for these different floor structures are established and verified by experiments.The temperature distribution and heat transfer process of each part are comprehensively obtained,and the structure is optimized.The results show that the cement-tile floor has the better heat transfer performance of the two.When under the same inlet water temperature and flow rate,the keel-wood floor's surface temperature distribution is about 2℃ lower than that of the cement-tile floor.The inlet water temperature of cement-tile floor is about 10℃ lower than that of keel-wood structure when the floor surface temperature is the same.During a longitudinal heat transfer above MHPA,the floor surface temperature decreases by 0.5℃ for every 10 mm filling layer increase.In order to reduce the non-uniformity of the floor's surface temperature and improve the thermal comfort of the heated room,the optimal structure for a floor is given,with the maximum surface temperature difference reduced by 3.35℃.We used research focusing on new radiant floor heating,with advantages including high efficiency heat transfer,low water supply temperature,simple waterway structure,low resistance and leakage risk,to provide theory and data to support the application of an effective radiant floor heating based on MHPA. | Heran Jing Zhenhua Quan Ruixue Dong Limin Hao Yunhan Liu Yaohua Zhao | 2022 | Building Simulation2022，15，7： | 1 |
| 14 | Experimental Study of Solar-air Composite Heat Pump System 显示文摘 | Quan Zhenhua Wang Gang Zhao Yaohua | 2014 | Advanced Materials Research2014，827，： | 1 |
| 15 | Experimental study of nucleate boiling heat transfer enhancement in a confined space显示文摘 | Yaohua Zhao Takaharu Tsuruta Chaoyue Ji | 2003 | Experimental Thermal and Fluid Science2003，，1： | 1 |
| 16 | Arsenic trioxide depletes cancer stem-like cells and inhibits repopulation of neurosphere derived from glioblastoma by downregulation of Notch pathway显示文摘 | Jianing Wu Zhiyong Ji Huailei Liu Yaohua Liu Dayong Han Chen Shi Changbin Shi Chunlei Wang Guang Yang Xiaofeng Chen Chen Shen Huadong Li Yunke Bi Dongzhi Zhang Shiguang Zhao | 2013 | Toxicology Letters2013，，1： | 1 |
| 17 | A study of an opti- mal smoke control strategy for an urban traffic link tunnel fire 显示文摘 | Hua Gaoying Wang Wei Zhao Yaohua | 2011 | Tunneling and Underground Space Technology2011，26，2： | 1 |
| 18 | MAXIMUM SCORE CHANGE-POINT ESTIMATION IN BINARY RESPONSE MODEL显示文摘这篇论文与假设在一个二进制反应模型涉及变化点的评价有条件错误术语中部,给解释变量,是零。我们基于最大的分数功能构造变化点的一个评价并且在一些温和条件下面给它的指数的集中率。 | Lincheng ZHAO ~ Chaofeng KOU Yaohua WU | 2006 | Journal of Systems Science & Complexity2006，19，3： | 1 |
| 19 | Experimental study of the performance for a novel kind of MHPA-FPC solar water heater显示文摘 | Deng Yuechao Wang Wei Zhao Yaohua | 2013 | Applied Energy2013，112，： | 1 |
| 20 | Development of the eellulolytie fungus Trichoderma reesei strain with enhanced 13-glu- cosidase and filter paper activity using strong artifical cellobiohy- drolase 1 promoter显示文摘 | Zhang Jiwei Zhong Yaohua Zhao Xuena | 2010 | Bioresource Technology2010，101，24： | 1 |
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