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The applied research of simultaneous image acquisition of T2-weighted imaging(T2WI)and diffusion-weighted imaging(DWI)in the assessment of patients with prostate cancer

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Asian Journal of Andrology 2019年第2期21卷 177-182页

作者： Yi Liu Wei wang Xiu-Bo Qin hui-hui wang Ge Gao Xiao-Dong Zhang Xiao-Ying wang Department of Radiology Peking University First HospitalBeijing 100034China

We aimed to evaluate the feasibility of simultaneous image acquisition of multiple instantaneous switchable scan(MISS)for prostate magnetic resonance imaging(MRI)on ***-three patients were scanned with MRI due to suspected prostate ***-eight of them got histological ***,two readers assessed the structure delineation and image quality based on images of conventional T2-weighted imaging(T2WI)and diffusion-weighted imaging(DWI)(CTD).Second,two readers identified the index lesion together,and then,reader one evaluated the contrast of index lesion on T2WI and signal ratio on apparent diffusion coefficient ***,they assigned Prostate Imaging Reporting and Data System(PI-RADS)score in consensus for the index *** 4 weeks,the images of MISS were reviewed by the same readers following the same ***,two readers gave preference for image interpretation,*** coefficient,Wilcoxon signed-rank test,paired-sample t-test,Bland-Altman analysis,and receiver operating characteristic(ROC)analysis were used for statistical *** acquisition time of CTD was 6 min and 10 st while the acquisition time of MISS was 4 min and 30 *** agreements for image evaluation were k=0.65 and k=0.80 for CTD and MISS,***-T2WI showed better delineation for seminal vesicles than CTD-T2WI(reader 1:P<0.001,reader 2:P=0.001).The index lesion demonstrated higher contrast in MISS-T2WI(P<0.001).The FI-RADS scores based on CTD and MISS exhibited high ability in predicting clinically significant cancer(area under curve[AUC]=0.828 vs 0.854).Readers preferred to use MISS in 41.5%-47.2%of *** showed comparable performance to conventional technique with less acquisition time.

关键词： diffusion-weighted imaging magnetic resonance imaging prostate cancer

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Light People:Professor Laura Na Liu

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Light(Science & Applications) 2024年第2期13卷 184-189页

作者： hui wang Cun Yu Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of Sciences130033ChangchunChina

Editorial The DNA nanotechnology outlines a new chapter in biological sciences,opening a new era of scientific and technological advancements.A pioneer of DNA nanotechnology,Professor Liu from the University of Stuttgart in Germany,our latest Light People,has been working at the interface,where nanophotonics meets biology and *** the path of scientific explorations.

关键词： chemistry. advancement pioneer

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Vibration attenuation performance of wind turbine tower using a prestressed tuned mass damper under seismic excitation

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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 511-524页

作者： Lei Zhenbo Liu Gang wang hui hui Yi School of Civil Engineering Chongqing UniversityChongqing 400045China Key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing UniversityMinistry of EducationChongqing 400045China

With the rapid development of large megawatt wind turbines,the operation environment of wind turbine towers(WTTs)has become increasingly *** particular,seismic excitation can create a resonance response and cause excessive vibration of the *** investigate the vibration attenuation performance of the WTT under seismic excitations,a novel passive vibration control device,called a prestressed tuned mass damper(PS-TMD),is presented in this ***,a mathematical model is established based on structural dynamics under seismic ***,the mathematical analytical expression of the dynamic coefficient is deduced,and the parameter design method is obtained by system tuning ***,based on a theoretical analysis and parameter design,the numerical results showed that the PS-TMD was able to effectively mitigate the resonance under the harmonic basal ***,the time-history analysis method is used to verify the effectiveness of the traditional pendulum tuned mass damper(PTMD)and the novel PS-TMD device,and the results indicate that the vibration attenuation performance of the PS-TMD is better than the *** addition,the PS-TMD avoids the nonlinear effect due to the large oscillation angle,and has the potential to dissipate hysteretic energy under seismic excitation.

关键词： wind turbine tower prestressed tuned mass damper vibration control seismic excitation numerical simulation

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Synthesis and Crystal Structure of a Two-dimensional Cadmium(Ⅱ) Coordination Polymer:[Cd(AIP)(Bpy)]_n·nBpy(H_2AIP=5-Aminoisophthalic Acid, Bpy=2,2′-Bipyridyl)

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Chinese Journal of Structural Chemistry 2008年第2期27卷 159-162页

作者： OU Yang-Jun MA Cheng-Bing CHEN hui wang hui-Sheng CHEN Chang-Neng LIU Qiu-Tian State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter The Chinese Academy of Sciences Fuzhou Fujian 350002 China

A two-dimensional coordination polymer, [Cd（AIP）（Bpy）]***, was hydrothermally synthesized by the reaction of hydrate cadmium acetate with 5-aminoisophthalic acid, lithium hydroxide, vanadiumpentoxide, sodium chloride and 2,2′-bipyridyl in water solution. It crystallizes in orthorhombic, space group C222 1, absolute structure parameter 0.00（7）, with a = 15.336（4）, b = 22.390（6）, c = 14.257（3）A, V = 4896（2）/~3, C28H21CdNsO4, Mr = 603.90, Z = 8, F（000） = 2432, Dc = 1.639 g/cm^3, μ = 0.939 mm^-1, T= 298（2） K, S = 1.001, R = 0.0296 and wR = 0.0813 for 5522 observed reflections （I 〉 2a（/））. In the title complex, each 5-aminoisophthalate ligand bridges three cadmium（Ⅱ） ions to form a two-dimensional layer structure.

关键词： synthesis crystal structure cadmium complex 5-aminoisophthalic acid

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Understanding the stability and reactivity of ultrathin tellurium nanowires in solution： An emerging platform for chemical transformation and material design

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Nano Research 2015年第4期8卷 1081-1097页

作者： Liang Xu Hai-Wei Liang hui-hui Li Kai wang Yuan Yang Lu-Ting Song Xu wang Shu-Hong Yu Division of Nanomaterials and Chemistry Hefei National Laboratory for Physical Sciences at Microscale Collaborative InnovationCenter of Suzhou Nano Science and Technology Department of Chemistry University of Science and Technology of China Hefei230026 China

The stability and reactivity of nanomaterials are of crucial importance for their application, but the long-term effects of stability and reactivity of nanomaterials under practical conditions are still not well understood. In this study, we first established a comprehensive strategy to investigate the stability of a highly reactive nanomaterial from the viewpoint of reaction kinetics with ultrathin tellurium nanowires （TeNWs） as a model material in aqueous solution through an accelerated oxidation process. This allowed us to propose a new approach for the design and synthesis of other unique one-dimensional nanostructures by a chemical transformation process using the intermediate nanostructures ＂captured＂ during the dynamic oxidation process under different conditions. In essence, the oxidation of ultrathin TeNWs is a gas-solid reaction which involves liquid, gas and solid phases. It has been demonstrated that the oxidation process of ultrathin TeNWs in aqueous solution can be divided into three stages, namely oxygen limiting, ultrathin TeNWs limiting and mass transfer resistance limiting stages. The apparent oxidation kinetics for ultrathin TeNWs is approximately in accord with a first order reaction kinetics model and has an apparent activation energy as low as TeNWs are thermodynamically unstable 13.53 ***^-1, indicating that ultrathin However, the unstable nature of ultrathin TeNWs is actually an advantage since it can act as an excellent platform to help us synthesize and design one-dimensional functional nanomaterials--with special structures and distinctive properties--which are difficult to obtain by a direct synthesis method.

关键词： stability reactivity oxidation reaction kinetics chemical transformation storage ultrathin nanowires

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Palladium-catalyzed Suzuki couplings using a novel diaminophosphine oxide as ligand

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Chinese Chemical Letters 2012年第5期23卷 521-524页

作者： Wen Peng Mai hui hui wang Jin Wei Yuan Liang Ru Yang Zhi Cheng Li Chemistry and Chemical Engineering School Henan University of TechnologyZhengzhou 450001China

A novel diaminophosphine oxide was synthesized and applied as ligand in palladium-catalyzed Suzuki couplings reaction of aryl bromides and *** coupling reaction proceeded smoothly at mild conditions using 2 mol%Pd_2（... 详细信息

关键词： Palladium Suzuki reaction Coupling Diaminophosphine oxide

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Light People:Professor Manijeh Razeghi

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Light(Science & Applications) 2024年第8期13卷 1451-1462页

作者： hui wang Cun Yu Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China

The sense of light is the first sensation the human body *** importance of light is ***,we all know that the light we can see and perceive covers only a small section of the ***,for Light People,we feature a researcher who is committed to exploring different spectral bands of light ranging from deep ultraviolet to terahertz waves and working on quantum semiconductor technology,*** Razeghi of the Northwestern University in the United *** for her quick thinking and witty remarks,*** is passionate about life and always kind to *** a scientist,she does not limit her research to a single focus,instead,she works on the entire process from material selection,device design,processing,and manufacturing,all the way to product *** has a strong passion for education,a commitment unwavered by fame or *** her students,she is both a reliable source of knowledge and a motherly figure with a caring *** firmly believes that all things in nature can give her energy and *** science,she is a true“pioneer”in research and a“miner”of scientific *** advises young scientists to enjoy and love what they do,and turn their research into their *** a female scientist,she calls on all women to realize their true value and ***,let’s hear from Professor Manijeh Razeghi,a true star who radiates energy and light.

关键词： mother instead passion

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Current carrying states in the disordered quantum anomalous Hall effect

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Chinese Physics B 2022年第9期31卷 476-481页

作者： Yi-Ming Dai Si-Si wang Yan Yu Ji-Huan Guan hui-hui wang Yan-Yang Zhang School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China Research Center for Advanced Information Materials Guangzhou UniversityGuangzhou 510006China School of Mathematics and Information Science Guangzhou UniversityGuangzhou 510006China SKLSM Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Beijing Academy of Quantum Information Sciences Beijing 100193China Huangpu Research and Graduate School of Guangzhou University Guangzhou 510700China

In a quantum Hall effect,flat Landau levels may be broadened by ***,it has been found that in the thermodynamic limit,all extended(or current carrying)states shrink to one single energy value within each Landau *** the other hand,a quantum anomalous Hall effect consists of dispersive bands with finite *** numerically investigate the picture of current carrying states in this *** size scaling,the spectrum width of these states in each bulk band still shrinks to a single energy value in the thermodynamic limit,in a power law *** magnitude of the scaling exponent at the intermediate disorder is close to that in the quantum Hall *** number of current carrying states obeys similar scaling rules,so that the density of states of current carrying states is *** states in the bulk band are localized and may contribute to the formation of a topological Anderson insulator.

关键词： quantum anomalous Hall effect Chern number disordered system localization

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Synergistic extraction and separation of thorium from rare earths in chloride media using mixture of Cextrant 230 and Cyanex 923

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Journal of Rare Earths 2024年第4期42卷 759-767页

作者： hui wang Shengting Kuang Wuping Liao School of Rare Earths University of Science and Technology of ChinaHefei230026China Institute of Material and Chemistry Ganjiang Innovation AcademyChinese Academy of SciencesGanzhou341000China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China

In order to lower the usage of expensive Cyanex 923 and increase the extraction capacity of the system of Cextrant 230,the synergistic extraction of thorium from chloride media by a mixture of Cextrant 230 and Cyanex 923 was *** maximum synergistic enhancement coefficient(R)of 1.53 is obtained at 1:1 molar ratio of Cextrant 230/Cyanex *** syne rgistic extracted species of Th^(4+)is determined as ThCl_(4)·2Cextrant 230·Cyanex *** synergistic extraction of Th^(4+)is an entropy-driven exothermic *** loading capacity of 0.60 mol/L mixed extractant for thorium is about 17.10 g/L(calculated as ThO_(2)),and the loaded thorium in the organic phase can be effectively stripped by distilled *** comparison,rare earth cations are barely extracted under the similar conditions,suggesting that the mixtures can be applied to separate thorium from rare earths.A cascade extraction process was developed based on the synergistic extraction system to separate thorium from the hydrochloric acid leaching of *** content of thorium in the leaching solution decreases obviously from 19.90 mg/L to1.4μg/L by 3 stages of extraction,which is superior to sole Cextrant 230 or Cyanex *** introduction of Cextrant 230 into the extraction system not only lowers the usage of Cyanex 923 but also enhances the selective extraction of thorium at low acidity,implying that the synergistic extraction system can selectively extract thorium more efficiently and economically than the sole systems.

关键词： Synergistic extraction Cextrant 230 Cyanex 923 Thorium Rare earths

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Comparison of nonlinear modeling methods for the composite rubber clamp

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Applied Mathematics and Mechanics(English Edition) 2024年第5期45卷 763-778页

作者： Yiming CAO hui MA Xumin GUO Bingfeng ZHAO hui LI Xin wang Bing wang School of Mechanical Engineering and Automation Northeastern UniversityShenyang 110819China Key Laboratory of Vibration and Control of Aero-Propulsion Systems of Ministry of Education of China Northeastern UniversityShenyang 110819China AVIC Shenyang Engine Design Institute Shenyang 110013China Dalian Mengyu Machinery Co. Ltd.Dalian 116317Liaoning ProvinceChina

The cubic stiffness force model(CSFM)and Bouc-Wen model(BWM)are introduced and compared *** unknown coefficients of the nonlinear models are identified by the genetic algorithm combined with *** fitting the identified nonlinear coefficients under different excitation amplitudes,the nonlinear vibration responses of the system are *** results show that the accuracy of the BWM is higher than that of the CSFM,especially in the non-resonant ***,the optimization time of the BWM is longer than that of the CSFM.

关键词： pipeline system nonlinear clamp model composite rubber clamp amplitude-dependent characteristic vibration response experiment

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