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Nematic and smectic stripe phases and stripe-Sk x transformations

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Science China(Physics,Mechanics & Astronomy) 2022年第4期65卷 112-119页

作者： Hai-Tao Wu xu-Chong Hu x.r.wang Department of Physics The Hong Kong University of Science and TechnologyHong Kong 999077China HKUST Shenzhen research Institute Shenzhen 518057China

Based on the findings of skyrmion nature of stripes and the metastability of a state of an arbitrary number of skyrmions,precisely controlled manipulation of stripes of skyrmion number 1 in pre-designed structures and mutual transformation between helical states and skyrmion crystals(Sk xs)are demonstrated in chiral magnetic *** a proof of the concept,we show how to use patterned magnetic fields and spin-transfer torques(STTs)to generate nematic and smectic stripe phases,as well as“UST”mosaic from three curved *** one stripe into many pieces and coalescing several skyrmions into one by various external fields are good ways to transform helical states and Sk xs from each other.

关键词： spintronic Landau-Lifshitz-Gilbert equation simulation stripe skyrmion skyrmion crystal nematic phase

维普期刊数据库

Probe a Single Quantum Dot and Negative Differential Capacitance

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Probe a Single Quantum Dot and Negative Differential Capacit...

2001年纳米和表面科学与技术全国会议

作者： x.r.wang Hong Kong Univ.of Sci.&Tech.

I shall discuss two issues in this talk. The first one is how to probe a single quantum dot. Combining optical pumping and single electron transport technique, we propose that the electronic properties of a single dot can be probed by photon-assistant tunneling measurements. The second one is capacitance of quantum dot. Charge will be

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Magnetic Vortex Guide

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Magnetic Vortex Guide

第二届海峡两岸功能材料科技与产业峰会（2015）

作者： x.r.wang H.Y.Yuan Physics Department The Hong Kong University of Science and Technology HKUST Shenzhen research Institute

Magnetic vortex,characterized by the in-plane curling magnetization and out-of-plane magnetization at the core,has attracted much attention because of its promising applications in high-density storage devices.A vortex can attach itself to a magnetic domain wall,forming a vortex domain wall(VDW).A VDW in a magnetic nanowire is a localized spin texture and can move ***,a VDW can be a mobile information carrier

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Aeroelasticity Analysis of High-aspect-ratio Composite Wing

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Aeroelasticity Analysis of High-aspect-ratio Composite Wing

International Conference on Industrial Technology and Management Science(ITMS 2015)

作者： K.x.Liu W.Zhou x.r.wang xi’an High Technology Institute

The pneumatic elastic model establishing and analysis of the high-aspect-ratio composite wing is an important task for the long-endurance aircraft’s design. The pneumatic elastic analysis theory and fluidstructure interaction（FSI） analysis method are applied in this paper to establish the structured finite element model for the high-aspect-ratio composite wing. Based on the analysis of initialized static model, the software Mp CCI is used to analyze the model with the bidirectional FSI theory, and discuss the pneumatic elasticity characteristics of the wing model in the coupling state. And the relative structure and flow field parameters are supported.

关键词： high aspect ratio composite fluid structure interaction pneumatic elasticity

Magnetization reversal of Stoner Particles

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Magnetization Reversal of Stoner Particles

2005年纳米和表面科学与技术全国会议

作者： x.r.wang Physics Department,The Hong Kong University of Science and Technology,Clear Water Bay,Hong Kong SAr,China

Based on the Landau-Lifshitz-Gilbert formulation,we show that the so-calledStoner-Wohlfarth(SW)limit is exact when damping constant is infinitely *** limit,the magnetization moves along the steepest energy descent *** minimalswitching field is the one at which there is only one stable fixed point in the *** that there is a critical value for the damping constant,above which the minimal

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Study on judge system of fuzzy inference to classification of tunnel surrounding rock

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Study on judge system of fuzzy inference to classification o...

The International Young Scholars’ Symposium on rock Mechanics

作者： x.r.wang Y.H.wang S.H.Zhang School of Civil Engineering and Mechanics Huazhong University of Science & Technology Wuhan China

＜正＞The project of using surrounding rock to adjust the design of dynamic timbering during the construction is the main idea behind the New Austria Tunneling Model（NATM）.Factors and parameters that influenced the deformation of surrounding rock are complex and difficult to describe by definitive values. According to the mathematical model based on the theory of identification in the fuzzy inference,professional knowledge,expert experience,theory and method of artificial intelligence are combined to set up the Judge System Fuzzy Inference（JSFI）.The system is based on Self-Organizing-Feature-Map and fuzzy mathematics to deal with uncertain information and to express complex characteristics of the deformation of the surrounding *** stability of the surrounding rock according to the geologic conditions has been assessed comprehen- sively and a more accurate classification of the surrounding rock has been *** present results agree well with the present dynamic design *** system has been applied in the Yunling Tunnel construction of the Shi-man Highway.

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A new biodegradation additive for eco-chemical remediation of heavy metal polluted soil

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A new biodegradation additive for eco-chemical remediation o...

International Symposium on Phytoremediation and Ecosystem Health

作者： H.Y.Guo F.x.Ai Y.Yin and x.r.wang State Key Laboratory of Pollution Control and resource reuse School of the Environment Nanjing University Nanjing 210093 Pr China

＜正＞Preliminary investigations into the replacement of widely used chelating agents for remediation of heavy metal polluted soil using readily biodegradable alternatives which

关键词： Biodegradation eco-chemical remediation ethyl lactate EDDS

黑血MrI上的瘤壁强化与未破裂的颅内囊性动脉瘤的症状状态独立相关

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国际医学放射学杂志 2021年第1期44卷 119-120页

作者： C.C.Zhu x.r.wang L.Eisenmenger Z.Shi A.Degnan B.Tian 黄黎香

摘要目的探讨动脉瘤壁强化(AWE)是否与未破裂颅内动脉瘤(UIA)的症状状态独立相关。方法连续139例病人[男67例,平均年龄(58±11)岁],79个有症状和87个无症状

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颅内未破裂动脉瘤瘤壁强化增加破裂风险且与传统危险因素相关

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国际医学放射学杂志 2019年第1期 124-125页

作者： C.C.Zhu x.r.wang A.J.Degnan Z.Shi B.Tian Q.Liu 马娟微 Department of radiology and Biomedical Imaging UCSFSan FranciscoCAUSA

摘要目的MrI动脉瘤瘤壁强化(AWE)是动脉瘤活动性炎症的影像标志物,但尚无前瞻性研究评估AWE预测动脉瘤破裂或生长的能力。本研究旨在探讨AWE与动脉瘤传

关键词：破裂风险 AWE 危险因素动脉瘤