|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Nataf transformation based point estimate method显示文摘Structural probabilistic analysis quantifies the effect of input random variables, such as material proper- ties, geometrical parameters and loading conditions, on the structural responses. The point estimate method (PEM) is a direct and easy-used way to perform the structural probabilistic analysis in practice. In this paper, a novel and efficient point estimate method is proposed for computing the first four statistical moments of structural response which is a function of input random variables. The method adopts Nataf transformation to replace Rosenblatt transformation in conventional point estimate method. Because of the nature of engineering problems and limited statistical data, the joint probability density function (PDF) of all input random variables is hard to acquire, but it must be known in Rosenblatt transformation. A more common case is that the marginal PDF of each random variable and the correlation matrix are available, which just satisfy the service condition of Nataf transformation. Hence the Nataf transformation based point estimate method is particularly suitable for engineering applications. The comparison between the proposed method and the conventional point estimate method shows that (1) they are equivalent when all random variables are mutually independent; (2) if the marginal PDFs and the correlation matrix are known, the conventional PEM cannot be applicable, but the proposed method can give a rational approximation. Finally, the procedure is demonstrated in detail through a simple illustration. | LI HongShuang LU ZhenZhou YUAN XiuKai | 2008 | Chinese Science Bulletin2008，53，17： | 34 |
| 2 | Microstructure and properties in dissimilar/similar weld joints between DP780 and DP980 steels processed by fiber laser welding显示文摘The microstructure and mechanical properties(strength, fatigue and formability) of dissimilar/similar weld joints between DP780 and DP980 steels were studied. The microstructure in fusion zone(FZ) was lath martensite(LM), and alloying elements in the FZ were uniformly distributed. The hardness in the FZ of dissimilar weld joint was similar to the average value(375 HV) of the two similar weld joints. The microstructural evolution in heat affected zone(HAZ) of dissimilar/similar weld joints was as follows:LM(coarse-grained HAZ) →finer LM(fine-grained HAZ) →M-A constituent and ferrite(intercritically HAZ) →tempered martensite(TM) and ferrite(sub-critical HAZ). Lower hardness in intercritically HAZ and sub-critical HAZ(softening zones) was observed compared to base metal(BM) in dissimilar/similar weld joints. The size of softening zone was 0.2–0.3 mm and reduction in hardness was ~7.6%–12.7% of BM in all the weld joints, which did not influence the tensile properties of weld joints such that fracture location was in BM. Formability of dissimilar weld joints was inferior compared to similar weld joints because of the softening zone, non-uniform microstructure and hardness on the two sides of FZ. The effect of microstructure on fatigue life was not influenced due to the presence of welding concavity. | Hongshuang Di Qian Sun Xiaonan Wang Jianping Li | 2017 | Journal of Materials Science & Technology2017，33，12： | 8 |
| 3 | Effect of Heat Treatment on Microstructures and Mechanical Properties of Hot-Dip Galvanized DP Steels显示文摘In order to simulate the hot-dipped galvanizing of dual-phase(DP) steel(wt%) 0.15C–0.1Si–1.7Mn, the DP steels were obtained by different annealing schedules. The effects of soaking temperature, time, and cooling rate on ferrite grain, volume fraction of martensite, and the fine structure of martensite were studied. Results showed that the yield strength(YS) of DP steel is sensitive to annealing schedule, while total elongation has no noticeable dependence on annealing schedule. Increasing soaking temperature from 790 to 850 °C, the YS is the lowest at soaking temperature of 850 °C. Changing CR1 from 6 to 24 °C/s, the YS is the highest when CR1 is 12 °C/s. Increasing soaking time from 30 to100 s, the YS is the lowest at soaking time of 100 s. Besides, it was found that sufficient movable dislocations within ferrite grains and high martensite volume fraction can eliminate yield point elongation, decrease the YS, and increase ultimate tensile strength. Through TEM observations, it was also found that increasing annealing temperature promotes austenite transformation into twin martensite, and increases volume fraction of martensite at sufficient cooling rate. With increasing the martensite volume fraction, the deformation substructure in the ferrite is well developed. | Enbao Pan Hongshuang Di Guangwei Jiang Chengren Bao | 2014 | Acta Metallurgica Sinica(English Letters)2014，27，3： | 8 |
| 4 | Prevalent thickening and local thinning of the mantle transition zone beneath the Baikal rift zone and its dynamic implications显示文摘The Baikal rift is the most seismically active continental rift in the world and is significant for studying the dynamics of continental rifts, although its precise dynamic mechanisms remain controversial. We calculated receiver functions (1748) from Global Seismographic Network seismic stations TLY and ULN and stacked receiver functions in different bins. Here we present discontinuities at depths of 410km and 660km and thickness of the mantle transition zone (MTZ) beneath the study area. The MTZ structure shows an obvious thickening (292km) in the Baikal rift zone except for an area of limited thinning (230km), whereas it is basically normal (250km) beneath the Mongolian area, to the southeast of the Baikal rift. Combining these results with previous findings, we propose that the large-scale thickening beneath the Baikal rift zone is likely to be caused by the Mesozoic collision between the Siberian Platform and the Mongolia-North China Block or magmatic intrusion into the lower crust, which would result in crust and lithosphere thickening. Thus, the lower crust becomes eclogitized and consequently detached into the deep mantle because of negative buoyancy. The detachment not only induces asthenosphere upwelling but also accelerates mantle convection of water detached from the subducted slab, which would increase mantle melting, while both processes promote the development of the rift. Our preliminary results indicate that the detachment and the consequent hot upwelling have an important influence on the development of the Baikal rift, and a small-scale mantle upwelling indicated by the located thinning may have destroyed the lithosphere and promoted this development. | SI ShaoKun TIAN XiaoBo ZHANG HongShuang TENG JiWen | 2013 | Science China Earth Sciences2013，56，1： | 6 |
| 5 | A thinned lithosphere beneath coastal area of southeastern China as evidenced by seismic receiver functions显示文摘During Mesozoic to Cenozoic time, the large-scale tectono-magmatism had strongly modified the lithosphere beneath the southeastern continent of China, leaving the present-day lithosphere as a new one evolving from the ancient lithosphere that was largely removed and replaced. But this model proposed from geochemical and petrological research is urgently in need of support from seismic observational evidence. In this paper, based on the dataset recorded by the dense stations of two NE oriented broadband seismic profiles deployed in the coastal area of southeastern China(SE China), both P-wave(P-RF) and S-wave(S-RF) receiver functions were isolated. We identified Pls phase converted from the Lithosphere-Asthenosphere Boundary(LAB) in P-RFs of individual stations. Migrated Pls phase indicated a depth of 60–70 km for LAB. Inversions/comparisons of P-RF(Pls phase) and S-RF(Slp phase) waveforms together with Ps and Sp imaging for the crust and upper mantle structure further confirmed this result. P-RF and S-RF migrated images exhibit that a flat LAB is positioned at the depth of 60–70 km spreading along the profile, whereas a distinct structural change of lithospheric base appears at the Min River estuary. Both Ps and PpPs migrated images of P-RFs present an abrupt Moho drop across the Min River fault from south to north, which is consistent with previous result obtained from deep seismic sounding. By taking into consideration other geological and geophysical features such as locally high anomalies of crustal Poisson's ratios and heat flow at the Min River estuary, we infer that the Min River fault penetrates down to the Moho and may, furthermore, interfere in the deeper lithospheric structure. | YE Zhuo LI QiuSheng GAO Rui ZHANG HongShuang HE RiZheng WANG HaiYan LI WenHui | 2014 | Science China Earth Sciences2014，57，11： | 6 |
| 6 | Synthesis, Antitumor Activity and Preliminary Structure-activity Relationship of 2-Aminothiazole Derivatives显示文摘In this paper, we described the synthesis of 2-aminoflfiazole sublibrary containing methyl, bromo, phenylor butylidene at 4- or/and 5-position of its core. All target compounds were evaluated tbr their antitumor activitiesagainst human lung cancer cell line H1299 and human glioma cell line SHG-44. Among the compotmds screened,4,5,6,7-tetrahydrobenzo[d]thiazole(26b) exhibited the most potent antittunor activities with IC50 values of 4.89 and4.03 μmol/L against the two tested cell lines, respectively. Preliminary structure-activity relationship(SAR) studies ofthese compound were subsequently investigated. | LI Hongshuang WANG Xinran DUAN Guiyun XIA Chengcai XIAO Yuliang LI Furong GE Yanqing YOU Guirong HAN Junfen FU Xiaopan | 2016 | Chemical Research in Chinese Universities2016，32，6： | 3 |
| 7 | Effect of Annealing Temperature on the Precipitation Behavior and Texture Evolution in a Warm-Rolled P-Containing Interstitial-Free High Strength Steel显示文摘By using transmission electron microscopy and electron back-scattered diffraction, the effect of annealing temperature on the precipitation behavior and texture evolution in a warm-rolled interstitial-free high strength steel was studied. The results indicated that fine FeTiP could precipitate at 650 °C, and the number of those precipitates increased greatly with the increasing annealing temperature until 800 °C. Furthermore, the nucleation of FeTiP was influenced by the precipitation of TiC and(Ti, Nb) C. The near absence of FeTiP and a large volume fraction of TiC and(Ti, Nb) C in matrix are envisaged to be primarily responsible for the sharp c-fiber texture. As the boundary pinning effect caused by FeTiP is weak and there are less interstitial C atoms in matrix. Thus, annealing at 800 °C leads to the highest intensity of c-fiber texture. | Jiecen Zhang Yu Cao Guangwei Jiang Hongshuang Di | 2014 | Acta Metallurgica Sinica(English Letters)2014，27，3： | 3 |
| 8 | Inflammation-induced inhibition of chaperone-mediated autophagy maintains the immunosuppressive function of murine mesenchymal stromal cells显示文摘Macroautophagy has been implicated in modulating the therapeutic function of mesenchymal stromal cells(MSCs).However,the biological function of chaperone-mediated autophagy(CMA)in MSCs remains elusive.Here,we found that CMA was inhibited in MSCs in response to the proinflammatory cytokines interferon-γ(IFN-γ)and tumor necrosis factor-α(TNF-α).In addition,suppression of CMA by knocking down the CMA-related lysosomal receptor lysosomal-associated membrane protein 2(LAMP-2A)in MSCs significantly enhanced the immunosuppressive effect of MSCs on T cell proliferation,and as expected,LAMP-2A overexpression in MSCs exerted the opposite effect on T cell proliferation.This effect of CMA on the immunosuppressive function of MSCs was attributed to its negative regulation of the expression of chemokine C-X-C motif ligand 10(CXCL10),which recruits inflammatory cells,especially T cells,to MSCs,and inducible nitric oxide synthase(iNOS),which leads to the subsequent inhibition of T cell proliferation via nitric oxide(NO).Mechanistically,CMA inhibition dramatically promoted IFN-γplus TNF-α-induced activation of NF-κB and STAT1,leading to the enhanced expression of CXCL10 and iNOS in MSCs.Furthermore,we found that IFN-γplus TNF-α-induced AKT activation contributed to CMA inhibition in MSCs.More interestingly,CMA-deficient MSCs exhibited improved therapeutic efficacy in inflammatory liver injury.Taken together,our findings established CMA inhibition as a critical contributor to the immunosuppressive function of MSCs induced by inflammatory cytokines nd highlighted a previously unknown function of CMA. | Jie Zhang Jiefang Huang Yuting Gu Mingxing Xue Fengtao Qian Bei Wang Wanlin Yang Hongshuang Yu Qiwei Wang Xin Guo Xinyuan Ding Jina Wang Min Jin Yanyun Zhang | 2021 | Cellular & Molecular Immunology2021，18，6： | 3 |
| 9 | Preparation and Evaluation of Electrospun Zein/HA Fibers Based on Two Methods of Adding HA Nanoparticles显示文摘 | Mei Zhang Yongjia Liu Yuqing Jia Hongshuang Han Dahui Sun | 2014 | Journal of Bionic Engineering2014，11，1： | 2 |
| 10 | An electron backscattered diffraction study on the dynamic recrystallization behavior of a nickel–chromium alloy (800H) during hot deformation显示文摘 | Yu Cao Hongshuang Di Jingqi Zhang Jiecen Zhang Tianjun Ma R.D.K. Misra | 2013 | Materials Science & Engineering A2013，，： | 2 |
| 11 | Reliability-based design optimization via high order response surface method显示文摘 | Li HongShuang | | 0，，04： | 1 |
| 12 | Spheroidizing kinetics of eutectic carbide in the twin roll-casting of M2 high-speed steel显示文摘 | Hongshuang Di Xiaoming Zhang Guodong Wang Xianghua Liu | 2005 | Journal of Materials Processing Technology2005，166，： | 1 |
| 13 | Spheroidizing kinetics of eutecfic carbide in the twin roll- casting of M2 high-speed steel显示文摘 | Di Hongshuang Zhang Xiao-ming Wang Guo-dong | 2005 | Journal of Materials Pro- cessing Technology2005，166，： | 1 |
| 14 | Simultaneou form for multiagent systems in logistics 显示文摘 | HONG TUANGPEI WANG HONGSHUANG CHEN WEICHOU | 1998 | Operations Research Proceedings1998，10，4： | 1 |
| 15 | Spheroidizing kinetics of eutectic carbide in the twin roll-casting of M2 high-speed steel 显示文摘 | Di Hongshuang Zhang Xiaoming Wang Guodong et ol | 2005 | Journal of Materials Processing Technology2005，166，： | 1 |
| 16 | Evolution of deformation and annealing textures in Incoloy 800H/HT via different rolling paths and strains 显示文摘 | Cao Yu Di Hongshuang Misra R D K | 2014 | Materials Science & Engineering A2014，33，5： | 1 |
| 17 | Effect of deformation on continuous cooling phase transformation behaviors of 780 MPa Nb-Ti ultra-high strength steel显示文摘 | WANG Xiaonan DU Linxiu DI Hongshuang | 2011 | Steel Research International2011，82，12： | 1 |
| 18 | Atomic switches of metallic point contacts by plasmonic heating显示文摘Electronic switches with nanoscale dimensions satisfy an urgent demand for further device miniaturization.A recent heavily investigated approach for nanoswitches is the use of molecular junctions that employ photochromic molecules that toggle between two distinct isoforms.In contrast to the reports on this approach,we demonstrate that the conductance switch behavior can be realized with only a bare metallic contact without any molecules under light illumination.We demonstrate that the conductance of bare metallic quantum contacts can be reversibly switched over eight orders of magnitude,which substantially exceeds the performance of molecular switches.After the switch process,the gap size between two electrodes can be precisely adjusted with subangstrom accuracy by controlling the light intensity or polarization.Supported by simulations,we reveal a more general and straightforward mechanism for nanoswitching behavior,i.e.,atomic switches can be realized by the expansion of nanoelectrodes due to plasmonic heating. | Weiqiang Zhang Hongshuang Liu Jinsheng Lu Lifa Ni Haitao Liu Qiang Li Min Qiu Bingqian Xu Takhee Lee Zhikai Zhao Xianghui Wang Maoning Wang Tao Wang Andreas Offenhausser Dirk Mayer Wang-Taek Hwang Dong Xiang | 2019 | Light(Science & Applications)2019，8，1： | 1 |
| 19 | 3-D Numerical Simulation of the Electromagnetic Dam of Twin Roll Casting using Edge Element Method显示文摘The 3-dimension numerical simulation study on the electromagnetic dam used in the twin roll caster has been performed by using the edge element method. It was found that the materials and structures of the roll collars have great influence on the distribution of the magnetic flux density, eddy current density and the electromagnetic force in the molten pool. The conductive collars make the magnetic flux density decreased in the molten pool, but it also makes the magnetic force more uniformly, and the force in the low part of the molten pool where needs greater force have increased some what. The conductive collars make the EMD device more effective than the nonconductive collars. | Peiwei BAO, Hongshuang DI, Aiwen QIAN, Xiaoming ZHANG and Guodong WANGState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China | 2003 | Journal of Materials Science & Technology2003，19，2： | 1 |
| 20 | Simultaneously applying multiple mutation operators in genetic algorithms显示文摘 | Hong Tuangpei Wang Hongshuang Chen Weichou | 2000 | Journal of Heuristics2000，6，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员