|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | The effect of surface roughness on thermal-elasto-hydrodynamic model of contact mechanical seals显示文摘In this paper,the effect of surface roughness on sealing clearance,pressure distribution,friction torque and leakage is studied by the thermal-elasto-hydrodynamic mixed lubrication model.A convergent nominal clearance is formed by the pressure deformation and thermal deformation of the seal faces.This causes more serious wear in the inner side than that of the outer side of the contact area.Mass leakage increases with the growing of the surface roughness.The temperature and thermal deformation on the seal surface increases substantially if the roughness is reduced.The contact mechanical seals have consistent performance when the standard deviation of surface roughness is approximately 0.2μm.In order to validate the theoretical analysis model,a method combining the measurement of three-dimensioned profile and Raman spectrum is proposed. | WEN QingFeng LIU Ying HUANG WeiFeng SUO ShuangFu WANG YuMing | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，10： | 13 |
| 2 | Passive-source ocean bottom seismograph(OBS) array experiment in South China Sea and data quality analyses显示文摘Long-term passive source ocean bottom seismograph(OBS) observatory is challenging due to various technical difficulties. In order to gain experience in this field, and to reveal the lithospheric structure beneath the extinct ridge in the central South China Sea(SCS), we carried out a passive source OBS array experiment, which includes 18 OBSs, in the deep portion of SCS. Here we present the instrumentation, the OBS deployment and recovery of this experiment, and more importantly, the data quality evaluated by a number of approaches. Through processing and inspecting waveforms from global, regional and local earthquakes, we find that most of recovered OBSs have good data quality with discernible main phases. The ambient noise analyses of OBS recordings show that their noise is higher than the global average, and the horizontal component is noisier than the vertical, indicating current impacts on horizontal components are more severe. In the period range of 5–10 s, there is a noise notch for the SCS OBSs, and noise levels of horizontal components are comparable to the vertical. This feature, which is not seen at OBS stations in open ocean, suggests the distant sources for double frequency microseism in this marginal sea are not significant. In addition, we successfully determined the orientations for 7 OBSs by investigating their Rayleigh wave polarizations; and we demonstrated the dispersion feature of Rayleigh waves through the frequency-time analysis. Finally, we summarized lessons learned from this experiment regarding the passive source OBS investigations in SCS. | Chenguang Liu Qingfeng Hua Yanliang Pei Ting Yang Shaohong Xia Mei Xue Ba Manh Le Da Huo Fang Liu Haibo Huang | 2014 | Chinese Science Bulletin2014，59，33： | 11 |
| 3 | Superior performance and high service stability for Ge Te-based thermoelectric compounds显示文摘GeTe-based compounds have been intensively studied recently due to their superior thermoelectric performance,but their real applications are still limited so far due to the drastic volume variation that occurs during the rhombohedral–cubic phase transition,which may break the material or the material/electrode interface during service.Here,superior performance and high service stability for GeTe-based thermoelectric compounds are achieved by co-doping Mg and Sb into GeTe.The linear coefficient of thermal expansion before phase transition is greatly improved to match that after phase transition,yielding smooth volume variation around the phase transition temperature.Likewise,co-doping(Mg,Sb)in GeTe successfully tunes the carrier concentration to the optimal range and effectively suppresses the lattice thermal conductivity.A peak z T of 1.84 at 800 K and an average z T of 1.2 in 300–800 K have been achieved in Ge0.85Mg0.05Sb0.1Te.Finally,a Ni/Ti/Ge0.85Mg0.05Sb0.1Te thermoelectric uni-leg is fabricated and tested,showing quite good service stability even after 450 thermal cycles between 473 K and 800 K.This study will accelerate the application of GeTe-based compounds for power generation in the mid-temperature range. | Tong Xing Qingfeng Song Pengfei Qiu Qihao Zhang Xugui Xia Jincheng Liao Ruiheng Liu Hui Huang Jiong Yang Shengqiang Bai Dudi Ren Xun Shi Lidong Chen | 2019 | National Science Review2019，6，5： | 4 |
| 4 | A modified scar model with controlled tension on secondary wound healing in mice显示文摘Pathological scars might cause a distorted appearance and restricted mobility,and the study of scar pathophysiology has been hindered by the absence of a reliable model.In this study,we introduce a model with a modified device to induce controlled tension on a wound healing by secondary intention to overcome the shortcomings of the model generated by Aarabi et al.We investigated and recommend an induction of 0.1 N/mm^(2) tension on day 7 for 14 days to mimic the characteristics of human scars.A 3.5-fold increase in scar tissue and a 2-fold increase in collagen production were induced by the modified model.Histologically,the modified method increased scar thickness.However,no significant difference was found in cell density between the two groups.This modified procedure significantly increased scar tissue,which could be used for further cellular and biomolecular research.The mechanical force applied to the wound became measurable and controllable.This method is more convenient for researchers to observe in realtime and for providing timely adjustments of the tension used in this modified model. | Zi Wang Xin Huang Tao Zan Qingfeng Li Haizhou Li | 2020 | Burns & Trauma2020，8，1： | 2 |
| 5 | Microstructure-based multiphysics modeling for semiconductor integration and packaging显示文摘Semiconductor technology and packaging is advancing rapidly toward system integration where the packaging is co-designed and co-manufactured along with the wafer fabrication.However,materials issues,in particular the mesoscale microstructure,have to date been excluded from the integrated product design cycle of electronic packaging due to the myriad of materials used and the complex nature of the material phenomena that require a multiphysics approach to describe.In the context of the materials genome initiative,we present an overview of a series of studies that aim to establish the linkages between the material microstructure and its responses by considering the multiple perspectives of the various multiphysics fields.The microstructure was predicted using thermodynamic calculations,sharp interface kinetic models,phase field,and phase field crystal modelingtechniques.Based on the predicted mesoscale microstructure,linear elastic mechanical analyses and electromigration simulations on the ultrafine interconnects were performed.The microstructural index extracted by a method based on singular value decomposition exhibits a monotonous decrease with an increase in the interconnect size.An artificial neural network-based fitting revealed a nonlinear relationship between the microstructure index and the average von Mises stress in the ultrafine interconnects.Future work to address the randomness of microstructure and the resulting scatter in the reliability is discussed in this study. | Zhiheng Huang Hua Xiong Zhiyong Wu Paul Conway Hugh Davies Alan Dinsdale Yunfei En Qingfeng Zeng | 2014 | Chinese Science Bulletin2014，59，15： | 2 |
| 6 | Titanium-supported nanoporous bimetallic Pt Ir electrocatalysts for formic acid oxidation显示文摘 | Qingfeng Yi Aicheng Chen Wu Huang Jingiing Zhang Xiaoping Liu Guorong Xu Zhihua Zhou | 2007 | Electrochemistry Communications2007，，9： | 1 |
| 7 | Motion characteristic of a free piston linear engine显示文摘 | Xiao Jin Li Qingfeng Huang Zhen | 2010 | Applied Energy2010，87，4： | 1 |
| 8 | Biomimetic structure design--a possible approach to change the brittleness of ceramics in nature 显示文摘 | WANG Changan HUANG Yong ZAN Qingfeng | 2000 | Mater Sci & Eng C2000，11，： | 1 |
| 9 | miR-199-5p regulates spermiogenesis at the posttranscriptional level via targeting Tekt1 in allotriploid crucian carp显示文摘Background:Sperm abnormalities are one of the primary factors leading to male sterility,but their pathogenesis is still unclear.Although miRNAs are suggested to exert important roles in the regulation of spermatogenesis at both transcriptional and posttranscriptional levels,little is currently known regarding the regulation of sperm flagella assembly by microRNAs(miRNAs).The role of miRNAs in the development of sperm abnormalities in sterile triploid fish has not been studied.Results:In this study,we found that miR-199-5p was widely expressed in all detected tissues of different-ploidy crucian carp.As one of the testis-specific candidate markers,Tekt1 was predominantly expressed in the testis.Quantitative real-time PCR(qRT-PCR)analyses showed that the expression trend of miR-199-5p was exactly opposite to that of Tekt1.Through bioinformatics analysis,we identified a putative miR-199-5p binding site in the Tekt1 mRNA.We further identified Tekt1 as a target of miR-199-5p using luciferase reporter assay.Finally,we confirmed that miR-199-5p was necessary for sperm flagellar assembly and spermatogenesis in vivo via intraperitoneal injection of miR-199-5p antagomir or agomir in diploid red crucian carp.Moreover,miR-199-5p gainof-function could lead to spermatids apoptosis and abnormal spermatozoa structure,which is similar to that of allotriploid crucian carp.Conclusions:Our studies suggested that abnormally elevated miR-199-5p inhibited the sperm flagella formation in spermiogenesis by negatively regulating the expression of Tekt1,thereby causing sperm abnormalities of male allotriploid crucian carp. | Shengnan Li Qiubei Wang Lu Huang Siyu Fan Ting Li Yuqing Shu Chun Zhang Yi Zhou Qingfeng Liu Kaikun Luo Min Tao Shaojun Liu | 2022 | Journal of Animal Science and Biotechnology2022，13，5： | 1 |
| 10 | Biomass Homogeneity Reinforced Carbon Aerogels Derived Functional Phase-Change Materials for Solar–Thermal Energy Conversion and Storage显示文摘We deviseda functional form stable compositephase-change materials(PCMs)toachieve a three-dimensional(3D)interconnectedporous carbon aerogel structure for encapsulating polyethyleneglycol(PEG).Anovelhomogeneity reinforced carbonaerogel witha well-interconnected porous structure was constructed bycombining a flexible carbonresource from biomass guar gum with hard-brittle carbonfrom polyimide,to overcome severeshrinkage andpoor mechanical performance of traditionalcarbon aerogel.Thesupportingcarbon aerogel-encapsulated PEG produced thenovel composite PCMswithgood structure stability andcomprehensive energy storage performance.Theresults showed thatthecomposite PCMsdisplayed awell-defined 3Dinterconnected structure,and theirenergy storage capacities were 171.5 and169.5 J/g,which changed onlyslightlyafter 100 thermalcycles,andthe compositescould maintainthe equilibrium temperature at50.0−58.1℃ for about 760.3 s.The thermal conductivityofthe compositescould reach0.62 W m^(−1) K^(−1),which effectively enhanced the thermalresponse rate.And thecomposite PCMs exhibited good leakage-proof performance andexcellent light–thermal conversion.The compressive strengthof thecomposite PCMscan improveupto 1.602 MPa.Results indicatethatthisstrategy canbe efficiently usedtodevelop novel composite PCMswithimproved comprehensive thermalperformance and high light–thermal conversion. | Qingfeng Zhang Tingfeng Xia Qihan Zhang Yucao Zhu Huanzhi Zhang Fen Xu Lixian Sun Xiaodong Wang Yongpeng Xia Xiangcheng Lin Hongliang Peng Pengru Huang Yongjin Zou Hailiang Chu Bin Li | 2023 | Energy & Environmental Materials2023，6，1： | 1 |
| 11 | Motion characteristic of a free piston linear engine显示文摘 | Jin Xiao Qingfeng Li Zhen Huang | 2009 | Applied Energy2009，，4： | 1 |
| 12 | An Adaptive Peer-to-Peer Collision Warning System显示文摘 | Ronald Miller Qingfeng Huang | 2002 | IEEE2002，，： | 1 |
| 13 | A joint call for actions to advance taxonomy in China显示文摘Taxonomy plays an important role in understanding the origin, evolution, and ecological functionality of biodiversity. There are large number of unknown species yet to be described by taxonomists, which together with their ecosystem services cannot be effectively protected prior to description. Despite this, taxonomy has been increasingly underrated insufficient funds and permanent positions to retain young talents. Further, the impact factordriven evaluation systems in China exacerbate this downward trend, so alternative evaluation metrics are urgently necessary. When the current generation of outstanding taxonomists retires,there will be too few remaining taxonomists left to train the next generation. In light of these challenges, all co-authors worked together on this paper to analyze the current situation of taxonomy and put out a joint call for immediate actions to advance taxonomy in China. | Chaodong Zhu Arong Luo Ming Bai Michael COrr Zhonge Hou Siqin Ge Jun Chen Yibo Hu Xuming Zhou Gexia Qiao Hongzhi Kong Limin Lu Xiaohua Jin Lei Cai Xinli Wei Ruilin Zhao Wei Miao Qingfeng Wang Zhongli Sha Qiang Lin Meng Qu Jianping Jiang Jiatang Li Jing Che Xuelong Jiang Xiaoyong Chen Lianming Gao Zongxin Ren Chunlei Xiang Shixiao Luo Donghui Wu Dong Liu Yanqiong Peng Tao Su Chenyang Cai Tianqi Zhu Wanzhi Cai Xingyue Liu Hu Li Huaijun Xue Zhen Ye Xuexin Chen Pu Tang Shujun Wei Hong Pang Qiang Xie Feng Zhang Feng Zhang Xianjin Peng Aibing Zhang Taiping Gao Changfa Zhou Chen Shao Libin Ma Zhaoming Wei Yunxia Luan Ziwei Yin Wu Dai Cong Wei Xiaolei Huang Jingxian Liu Xiangsheng Chen Tianci Yi Zhisheng Zhang Zhulidezi Aishan Qin Li Hongying Hu | 2022 | Zoological Systematics2022，47，3： | 1 |
| 14 | Ultra strong and ductile eutectic high entropy alloy fabricated by selective laser melting显示文摘With important application prospects, eutectic high entropy alloys have received extensive attention for their excellent strength and ductility in a large temperature range. The excellent casting characteristics of eutectic high entropy alloys make it possible to achieve well manufacturability of selective laser melting.For the first time, we have achieved crack-free eutectic high entropy alloy fabricated by selective laser melting, which has excellent mechanical properties in a wide temperature range from -196 ℃ to 760 ℃ due to ultra-fine eutectic lamellar spacing of 150–200 nm and lamellar colony of 2–6 μm. Specifically,the room temperature tensile strength exceeds 1400 MPa and the elongation is more than 20%, which significantly improved compared with those manufactured by other techniques with lower cooling rate. | Fan Yang Lilin Wang Zhijun Wang Qingfeng Wu Kexuan Zhou Xin Lin Weidong Huang | 2022 | Journal of Materials Science & Technology2022，，11： | 1 |
| 15 | biomimetic structure design - a possible approach to change the brittleness of ceramics in nature 显示文摘 | Wang Chang - an Huang Yong Zan Qingfeng | 2000 | Materials Science and Engineering C2000，11，： | 1 |
| 16 | Parametric Study of free piston linear alternator 显示文摘 | LI Qingfeng XIAO Jin HUANG Zhen | 2010 | International Journal of Automotive Technology2010，11，1： | 1 |
| 17 | Effect of Chemical Cross-linking on Properties of Gelatin/Hyaluronic Acid Composite Hydrogels显示文摘 | Zhihua Zhou Zhongmin Yang Tianlong Huang Lihua Liu Qingquan Liu Yanmin Zhao Wennan Zeng Qingfeng Yi Dafu Cao | 2013 | Polymer-Plastics Technology and Engineering2013，，1： | 1 |
| 18 | Electroactivity of titanium-supported nanoporous Pd-Pt catalysts towards formic acid oxidation 显示文摘 | Qingfeng Yi Wu Huang Xiaoping Liu | 2008 | J Electroanal Chem2008，，： | 1 |
| 19 | Motion characteristic of a free piston linear engine显示文摘 | Xiao Jin Li Qingfeng Huang Zhen | 2010 | Applied Energy2010，87，4： | 1 |
| 20 | An adaptive peer-to-peer collision warning system 显示文摘 | Miller R Huang Qingfeng | 2002 | IEEE 55th Vehicular Technology Conference2002，1，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员