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Light(Science & Applications) 2023年第8期12卷 1651-1660页

作者： yonghao bu Xiansong Ren Jing Zhou Zhenhan Zhang Jie Deng Hangyu Xu Runzhang Xie Tianxin Li Weida Hu Xia Guo Wei Lu Xiaoshuang Chen State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of Sciences500 Yu Tian Road200083 ShanghaiChina University of Chinese Academy of Sciences 19 Yuquan Road100049 BeijingChina State Key Laboratory for Information Photonics and Optical Communications School of Electronic EngineeringBeijing University of Posts and Telecommunications100876 BeijingChina

Filterless light-ellipticity-sensitive optoelectronic response generally has low discrimination,thus severely hindering the development of monolithic polarization ***,we achieve a breakthrough based on a configurable circular-polarization-dependent optoelectronic silent state created by the superposition of two photoresponses with enantiomerically opposite ellipticity *** zero photocurrent and the significantly suppressed noise of the optoelectronic silent state singularly enhance the circular polarization extinction ratio(CPER)and the sensitivity to light ellipticity *** CPER of our device approaches infinity by the traditional *** newly established CPER taking noise into account is 3-4 orders of magnitude higher than those of ordinary integrated circular polarization detectors,and it remains high in an expanded wavelength *** noise equivalent light ellipticity difference goes below 0.009° Hz-1/2 at modulation frequencies above 1000 Hz by a light power of 281 *** scheme brings a leap in developing monolithic ultracompact circular polarization detectors.

关键词： circular state ordinary

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医药行业商业贿赂行为分析

武汉冶金管理干部学院学报 2024年第3期34卷 33-37页

作者：卜永昊衡水市公安局河北衡水053000

近年来,国家出台相关法律法规,不断加大惩治医药行业商业贿赂行为的力度,以期扭转法律规定存在分歧、医药企业商业贿赂泛滥、医院缺乏市场化竞争的现状,但是医药行业商业贿赂行为仍屡见不鲜。本文以刑事合规制度、立法完善、DRG/DIP改... 详细信息

近年来,国家出台相关法律法规,不断加大惩治医药行业商业贿赂行为的力度,以期扭转法律规定存在分歧、医药企业商业贿赂泛滥、医院缺乏市场化竞争的现状,但是医药行业商业贿赂行为仍屡见不鲜。本文以刑事合规制度、立法完善、DRG/DIP改革为视角,试探讨完善医药行业商业贿赂行为治理的措施。

关键词：商业贿赂医药行业刑事合规

Some experimental schemes to identify quantum spin liquids

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Chinese Physics B 2020年第9期29卷 511-517页

作者： yonghao Gao Gang Chen State Key Laboratory of Surface Physics and Department of Physics Fudan UniversityShanghai 200433China Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong The University of Hong KongHong KongChina

Despite the apparent ubiquity and variety of quantum spin liquids in theory,experimental confirmation of spin liquids remains to be a huge *** by the recent surge of evidences for spin liquids in a series of candidate materials,we highlight the experimental schemes,involving the thermal Hall transport and spectrum measurements,that can result in smoking-gun signatures of spin liquids beyond the usual *** clarity,we investigate the square lattice spin liquids and theoretically predict the possible phenomena that may emerge in the corresponding spin liquids *** mechanisms for these signatures can be traced back to either the intrinsic characters of spin liquids or the external field-driven *** conclusion does not depend on the geometry of lattices and can broadly apply to other relevant spin liquids.

关键词： quantum spin liquids fractionalization neutron scattering thermal Hall effect

A data-driven approach for recommending UI element layout

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Science China(Information Sciences) 2020年第9期63卷 61-63页

作者： yonghao LONG Xiangping CHEN Yuting XIE School of Information Science and Technology National Engineering Research Center of Digital LifeSun Yat-sen University Guangdong Key Laboratory for Big Data Analysis and Simulation of Public Opinion School of Communication and Design Sun Yat-sen University

Dear editor,Smartphones and tablets with rich graphical user interfaces (GUI) are becoming increasingly popular. GUI design plays an important role in offering a smooth user experience. The complexity of the apps often depends on the user interface (UI)[1]with minor data processing or data processing delegates to the backend component.

关键词： UI development Software mining Layout recommendation Data-driven development Intelligent Software Development

IN-SITU OBSERVATION OF CRACK PROPAGATION IN PST CRYSTALS OF Ti-49% AlALLOY

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中国有色金属学会会刊：英文版 1999年第1期9卷 65-71页

作者： Lu, yonghao Zhang, Yonggang Chen, Changqi Beijing Univ of Aeronautics and Astronautics Beijing China

１ＩＮＴＲＯＤＵＣＴＩＯＮγＴｉＡｌｂａｓｅａｌｏｙｈａｓｂｅｅｎｏｆｍｕｃｈｉｎｔｅｒｅｓｔａｓｓｔｒｕｃｔｕｒａｌｍａｔｅｒｉａｌｓｆｏｒｅｌｅｖａｔｅｄｔｅｍｐｅｒａｔｕｒｅａｅｒｏｓｐａｃｅａｐｐｌｉｃａｔ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮγＴｉＡｌｂａｓｅａｌｏｙｈａｓｂｅｅｎｏｆｍｕｃｈｉｎｔｅｒｅｓｔａｓｓｔｒｕｃｔｕｒａｌｍａｔｅｒｉａｌｓｆｏｒｅｌｅｖａｔｅｄｔｅｍｐｅｒａｔｕｒｅａｅｒｏｓｐａｃｅａｐｐｌｉｃａｔｉｏｎｓｂｅｃａｕｓｅｏｆｉｔｓｌ...

关键词： PST crystal fracture behavior crack path toughness mechanism

Color reproduction for noisy CFA data using directional cycle-spinning

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Journal of Systems Engineering and Electronics 2011年第3期22卷 528-533页

作者： Weiyu Yu Jing Tian yonghao Xiao School of Electronic and Information Engineering South China University of TechnologyGuangzhou 510640P.R.China Provincial Key Laboratory for Computer Information Processing Technology School of Computer Science and TechnologySoochow UniversitySuzhou 215006P.R.China School of Electrical and Electronic Engineering Nanyang Technological UniversityNanyang Avenue 639798Singapore

This paper addresses color filter array（CFA） color reproduction problem where the aim is to utilize an image captured by the CFA to produce an image with full color ***,conventional subband synthesis based color reproduction techniques do not consider the noise during image acquisition and assume that the CFA data are *** tackle the noisy CFA data,a novel approach is proposed by inserting a subband denoising scheme into the conventional subband synthesis ***,conventional subband synthesis based techniques exploit the decimated wavelet transform that is not shift-invariant and could result in ringing artifacts in the *** alleviate these artifacts,the directional cycle-spinning（DCS） technique is ***,a new cycle-spinning pattern is proposed according to the sampling pattern of the Bayer CFA *** experiments are conducted to demonstrate that the proposed approach outperforms several approaches.

关键词： color filter array(CFA) cycle-spinning denoising.

NH4I-Catalyzed Synthesis of Sulfonamides from Arylsufonylhydrazides and Amines

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Chinese Journal of Chemistry 2016年第4期34卷 359-362页

作者： Hui Yu yonghao Zhang Department of Chemistry Tongji University 1239 Siping Road Shanghai 200092 China

A novel and efficient approach to sulfonamides has been developed. Using TBHP as the oxidant and NH4I （20 mol%） as the catalyst, arylsulfonyl hydrazides reacted with amines to provide sulfonamides in moderate to goo... 详细信息

关键词： sulfonamides arylsulfonyl hydrazides Amines TBHP oxidative coupling

Lattice Boltzmann Simulation of Droplet Generation in a Microfluidic Cross-Junction

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Communications in Computational Physics 2011年第5期9卷 1235-1256页

作者： Haihu Liu yonghao Zhang Department of Mechanical Engineering University of StrathclydeGlasgow G11XJUK

Using the lattice Boltzmann multiphase model,numerical simulations have been performed to understand the dynamics of droplet formation in a microfluidic *** influence of capillary number,flow rate ratio,viscosity ratio,and viscosity of the continuous phase on droplet formation has been systematically studied over a wide range of capillary *** different regimes,namely the squeezinglike regime and the dripping regime,are clearly identified with the transition occurring at a critical capillary number ***,large flow rate ratio is expected to produce big droplets,while increasing capillary number will reduce droplet *** the squeezing-like regime(Ca≤Cacr),droplet breakup process is dominated by the squeezing pressure and the viscous force;while in the dripping regime(Ca>Cacr),the viscous force is dominant and the droplet size becomes independent of the flow rate ratio as the capillary number *** addition,the droplet size weakly depends on the viscosity ratio in both regimes and decreases when the viscosity of the continuous phase ***,a scaling law is established to predict the droplet size.

关键词： Droplet generation microdroplet technology lattice Boltzmann method multiphase flow

Enhanced mechanical properties of a carbon and nitrogen co-doped interstitial high-entropy alloy via tuning ultrafine-grained microstructures

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Journal of Materials Science & Technology 2023年第13期144卷 128-137页

作者： Wei Jiang Heng Wang Zhiming Li yonghao Zhao Nano and Heterogeneous Materials Center School of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing210094PR.China School of Materials Science and Engineering Central South UniversityChangsha410083PR.China

C-N co-doped interstitial high entropy alloy(iHEA)was reported to have high strength and ***,iHEA with fully recrystallized ultrafine grains(UFGs)and underlying thermally activated pro-cesses associated with dislocation slip,twinning,and solute drag have not been reported *** this work,a C-N co-doped iHEA with nominal composition Fe_(48.5)Mn_(30)Co_(10)Cr_(10)C_(0.5)N_(1.0)(at.%)was prepared,and the microstructures were tuned by cold-rolling and annealing treatments to improve mechanical *** cold-rolling with a strain of 1.74,the main microstructures in the iHEA are composed of nano-grains,nano-twins,HCP laminates,and high density of dislocations,leading to ultrahigh hardness of 466.7 HV and tensile strength of 1730 MPa at the expense of ductility(2.44%).Both the nanostructures and the high hardness of the iHEA can be maintained up to an annealing temperature of 600℃(462.5 HV).After annealing at 650℃ for 1 h,the UFG microstructures are obtained in the iHEA,containing re-crystallized grains with an average grain size of 0.91μm and nanoprecipitates with an average diameter of 90.8 *** combined strengthening and hardening effects of UFGs,nanoprecipitates,twinning,and solutes contribute to high strain hardening(n=0.81),gigapascal yield strength(984 MPa),and good duc-tility(20%).The C-N co-doping leads to a strong drag effect on dislocation slip,resulting in a nano-scale mean free path of dislocation slip λ(1.44 nm)and much small apparent activation volume V^(∗)(15.8 b^(3))of the UFG iHEA.

关键词： Ultrafine-grained high-entropy alloys Interstitial atoms Thermomechanical processing Microstructures Mechanical properties

Analytical Solution for the Lattice Boltzmann Model Beyond Naviers-Stokes

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Advances in Applied Mathematics and Mechanics 2010年第5期2卷 670-676页

作者： Jianping Meng yonghao Zhang Department of Mechanical Engineering University of StrathclydeGlasgowG11XJUnited Kingdom

To understand lattice Boltzmann model capability for capturing nonequilibrium effects,the model with first-order expansion of the equilibrium distribution function is analytically *** particular,the velocity profile of Couette flows is exactly obtained for the D2Q9 model,which shows retaining the first order expansion can capture rarefaction effects in the incompressible ***,it clearly demonstrates that the D2Q9 model is not able to reflect flow characteristics in the Knudsen layer.

关键词： Lattice Boltzmann method rarefied gas dynamics micro flows Knudsen layer