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Acta Mechanica Sinica 2015年第3期31卷 392-405页

作者： d.yang Q.C.He School of Mechanical Engineering Southwest Jiaotong University Université Paris-Est Laboratoire Modélisation et Simulation Multi Echelle UMR 8208 CNRS

This work aims at determining the overall response of a two-phase elastoplastic composite to isotropic loading. The composite under investigation consists of elastic particles embedded in an elastic perfectly plastic matrix governed by the Mohr-Coulomb yield criterion and a non-associated plastic flow rule. The composite sphere assemblage model is adopted, and closed-form estimates are derived for the effective elastoplastic properties of the composite either under tensile or compressive isotropic loading. In the case when elastic particles reduce to voids, the composite in question degenerates into a porous elastoplastic material. The results obtained in the present work are of interest, in particular, for soil mechanics.

关键词： Composite Porous medium. Elastoplasticity Mohr-Coulomb yield criterion Non-associated flow rule Homogenization

Photoluminescence from Silicon Nanocrystals in Encapsulating Materials

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Journal of Materials Science & Technology 2013年第3期29卷 221-224页

作者： Z.deng X.d.Pi J.J.Zhao d.yang State Key Laboratory of Silicon Materials and department of Materials Science and Engineering Zhejiang University

Naturally oxidized freestanding silicon nanocrystals （Si NCs） are incorporated in commonly used encapsulating materials to explore the photoluminescent application of Si NCs in device structures such as solid-state lighting light-emitting diodes （LEds） and solar cells. The quantum yield of Si NCs before the incorporation has reached about 45% at the excitation wavelength of 370 nm without any special surface modification. It is found that medium Ioadings, e.g., 5 wt% of Si NCs in encapsulating materials help to obtain high external quantum efficiency （EQE） of the mixtures of Si NCs and encapsulating materials. The curing of encapsulating materials significantly reduces EQE. Among all the encapsulating materials investigated in this work, silicone- OE6551 enables the highest EQE （21% at excitation wavelength λex = 370 nm） after curing. Based on current findings, we have discussed the continuous efforts to advance the photoluminescent application of Si NCs.

关键词： Photoluminescence Silicon nanocrystals Epoxy Silicone Quantum yield External quantum efficiency

The exploration of N6-deoxyadenosine methylation in mammalian genomes

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Protein & Cell 2021年第10期12卷 756-768页

作者： Xuwen Li Zijian Zhang Xinlong Luo Jacob Schrier Andrew d.yang Tao P.Wu department of Molecular and Human Genetics Baylor College of MedicineHoustonTX 77030USA Medical Scientist Training Program Baylor College of MedicineHoustonTX 77030USA Huffington Center on Aging Baylor College of MedicineHoustonTX 77030USA dan L duncan Comprehensive Cancer Center Baylor College of MedicineHoustonTX 77030USA

N^(6)-methyladenine(N^(6)-mA,m^(6)dA,or 6mA),a prevalent dNA modification in prokaryotes,has recently been identified in higher eukaryotes,including *** 6mA has been well-studied in prokaryotes,the function and regulatory mechanism of 6mA in eukaryotes are still poorly *** studies indicate that 6mA can serve as an epigenetic mark and play critical roles in various biological processes,from transposable-element suppression to environmental stress ***,we review the significant advances in methodology for 6mA detection and major progress in understanding the regulation and function of this non-canonical dNA methylation in eukaryotes,predominantly mammals.

关键词： dNA N^(6)-methyladenine(6mA) mammalian dNA modification norvcanonical mammalian dNA methylation

A novel classification method for mild adolescent idiopathic scoliosis using 3d ultrasound imaging

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Medicine in Novel Technology and devices 2021年第3期11卷 151-161页

作者： d.yang T.T.Y.Lee K.K.L.Lai Y.S.Wong L.N.Wong J.L.yang T.P.Lam R.M.Castelein J.C.Y.Cheng Y.P.Zheng department of Biomedical Engineering The Hong Kong Polytechnic UniversityHong KongChina SH Ho Scoliosis Research Lab Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing UniversityDepartment of Orthopaedics&TraumatologyThe Chinese University of Hong KongHong KongChina department of Orthopaedic Surgery University Medical Center Utrechtthe Netherlands Spine Center Xinhua Hospital Affiliated to Shanghai Jiaotong University School of MedicineShanghaiChina

Mild adolescent idiopathic scoliosis(AIS),with Cobb<20°,was hypothesized as the right stage to intervene to prevent *** curve can be categorized into either structural or non-structural depending on the spine morphol... 详细信息

Mild adolescent idiopathic scoliosis(AIS),with Cobbd as the right stage to intervene to prevent *** curve can be categorized into either structural or non-structural depending on the spine morphology(flexibility).Using X-ray to characterize AIS curves remains the clinical gold standard whilecompromising the risks of radiation *** previous works,3d ultrasound imaging had proved the reli-ability of the coronal spinal curvature measurement This research aimed at developing a mild AIs clasificationscheme through examining spine flexibility using 3d ultrasound *** the preliminary study,90 mild AIS subjects(21 M and 69 F;Age:14.5±1.7 years old;Cobb:18.2±6.4°)underwent both 3d ultrasound and X-ray scanning on the same *** each case,a clinician measured Cobbs and denoted major curve as ground *** Asymmetry Index(BAl)was developed to indicate the presence of a possible structural *** curve classification was coded to a modfied Lenke classification for mild cases(m-Lenke).The results of 3d ultrasound classification were evaluated with the *** was shown that 70.1%of the subjects had identical curve clssification results and 72.0%had the correct major curve ***-dominated curves had distinctive performance(p=0.91,r=0.91)against *** study demonstrated the possibility of a 3d ultrasound-based method for mild AIS curve *** could be partially explained by the limitations of the ultrasound scanning in proximal thoracicreg *** studies will validate the proposed method with a larger cohort.

关键词： AIS classification 3d ultrasound Mild AIS Spine flexibility

Limit of crustal drilling depth

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Journal of Rock Mechanics and Geotechnical Engineering 2017年第5期9卷 989-992页

作者： Y.S.Zhao Z.J.Feng B.P.Xi d.yang W.G.Liang Z.J.Wan Key Laboratory of In Situ Property-improving Mining of Ministry of Education Taiyuan University of Technology College of Mining Engineering China University of Mining and Technology

deep drilling is becoming the direct and the most efficient means in exploiting deep mineral resources,facilitating to understanding the earthquake mechanism and performing other scientific researches on the Earth’s *** order to understand the limit of drilling depth in the Earth’s crust,we first conducted tests on granite samples with respect to the borehole deformation and stability under high temperature and high pressure using the triaxial servo-controlled rock testing *** the critical temperaturepressure coupling conditions that result in borehole instability are ***,based on the testing results obtained and the requirements for the threshold values of borehole deformations during deep drilling,the limit of drilling depth in the Earth’s crust is formulated with ground temperature.

关键词： drilling well Limit of drilling depth High temperature High pressure Borehole instability

EFFECT OF PH, AMMONIA, NITRITE, PHENOL ANd COPPER ON LARVAE OF THE CHINESE STURGEON, ACIPENSER SINENSIS

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EFFECT OF PH, AMMONIA, NITRITE, PHENOL AND COPPER ON LARVAE ...

另类的“学术传教”——解析明末清初传教士对中国典籍的译介

第十九届国际动物学大会

作者： H.du Q.Wie J.Liu G.Tang d.yang Y.Zhu Key Laboratory of Freshwater Fish Germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key Laboratory of Freshwater Fish Germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key Laboratory of Freshwater Fish Germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key Laboratory of Freshwater Fish Germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key Laboratory of Freshwater Fish Germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key Laboratory of Freshwater Fish Germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China

＜正＞Acute toxicities of pH, Phenol, Ammonia, Nitrite and Cu were employed to study the larvae of Chinese sturgeon Acipenser sinensis with static bioas-says. The larvae were 8-day old just before the yolk would be co...

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中国科技翻译 2009年第4期22卷 52-54,26页

作者：戴俊霞杨宸安徽工业大学外国语学院马鞍山市243002 美国农业部研究生院华盛顿哥伦比亚特区200242520

明末清初传教士来华的目的就是以基督教归化中国,普世基督教理想直接影响着他们对中国典籍的译介。本文从明清传教士对中国典籍的"神学"解读及其"基督化"的翻译两个层面阐释汉籍西译的宗教归化实质,并揭示传教士译介汉籍的历史效果与其... 详细信息

明末清初传教士来华的目的就是以基督教归化中国,普世基督教理想直接影响着他们对中国典籍的译介。本文从明清传教士对中国典籍的"神学"解读及其"基督化"的翻译两个层面阐释汉籍西译的宗教归化实质,并揭示传教士译介汉籍的历史效果与其动机间的对抗性关系。

关键词：中国典籍宗教归化历史效果

Competition among the two-plasmon decay of backscattered light,filamentation of the electron-plasma wave and side stimulated Raman scattering

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High Power Laser Science and Engineering 2023年第6期11卷 87-94页

作者： K.Q.Pan Z.C.Li L.Guo T.Gong S.W.Li d.yang C.Y.Zheng B.H.Zhang X.T.He Laser Fusion Research Center China Academy of Engineering PhysicsMianyangChina Center for Applied Physics and Technology Peking UniversityBeijingChina Institute of Applied Physics and Computational Mathematics BeijingChina

Competition among the two-plasmon decay(TPd)of backscattered light of stimulated Raman scattering(SRS),filamentation of the electron-plasma wave(EPW)and forward side SRS is investigated by two-dimensional particlein-cell *** previous work[*** et al.,*** 58,096035(2018)]showed that in a plasma with the density near 1/10 of the critical density,the backscattered light would excite the TPd,which results in suppression of the backward ***,this work further shows that when the laser intensity is so high(>10^(16)W/cm^(2))that the backward SRS cannot be totally suppressed,filamentation of the EPW and forward side SRS will be *** the TPd of the backscattered light only occurs in the early stage and is suppressed in the latter *** distribution functions further show that trapped-particle-modulation instability should be responsible for filamentation of the *** research can promote the understanding of hot-electron generation and SRS saturation in inertial confinement fusion experiments.

关键词： laser plasma instability inertial confinement fusion high energy density physics particle-in-cell simulation super-hot electrons

Enhancement of the surface emission at the fundamental frequency and the transmitted high-order harmonics by pre-structured targets

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High Power Laser Science and Engineering 2019年第2期7卷 111-119页

作者： K.Q.Pan d.yang L.Guo Z.C.Li S.W.Li C.Y.Zheng S.E.Jiang B.H.Zhang X.T.He Laser Fusion Research Center China Academy cf Engineering PhysicsMianyang 621900.China Center for Applied Physics and Technology Peking UniversityBeijing 100871China Institute of Applied Physics and Computational Mathematics Beijing 100088China

Laser interaction with an ultra-thin pre-structured target is investigated with the help of both two-dimensional and threedimensional particle-in-cell *** the existence of aperiodic structure on the target surface,the laser seems to penetrate through the target at its fundamental frequency even if the plasma density of the target is much higher than the laser’s relativistically critical *** particle-in-cell simulations show that the transmitted laser energy behind the pre-structured target is increased by about two orders of magnitude compared to that behind the flat *** analyses show that the transmitted energy behind the pre-structured target is actually re-emitted by electron’islands’ formed by the surface plasma waves on the target *** other words,the radiation with the fundamental frequency is actually’surface emission,on the target rear *** the intensity of the component with the fundamental frequency,the intensity of the high-order harmonics behind the pre-structured target is also much enhanced compared to that behind the flat *** enhancement of the high-order harmonics is also related to the surface plasma waves generated on the target surfaces.

关键词： high-order harmonics generation high power laser laser-plasma interaction particle-in-cell simulation

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无级变速汽车控制系统的仿真

汽车工程 1987年第4期 42-47页

作者：杨涤杨喜春哈尔滨工业大学

本文介绍一个沿最佳操作线工作的发动机和V型皮带轮式连续变化传动装置等部件组成汽车的工作原理,数学模型及动态特性的计算机仿真结果。

关键词：汽车控制系统皮带轮操作线传动比部件轮(机械元件) 速比 CVT 发动机