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计算机辅助设计与图形学学报 1998年第6期10卷 506-515页

作者：黄永红季鹏斌吴红明唐荣锡中国科学院计算技术研究所CAD开放实验室北京航空航天大学制造工程系

提出并实现了生成型特征设计中的特征剪贴的方法．允许从已构建的产品模型中“剪切”下一部分特征和约束几何对象，然后“粘贴”在模型的另一地方．本文的方法支持对模型的重用、交互构建特征标准件库和特征轮廓库以及用这些标准件进行... 详细信息

提出并实现了生成型特征设计中的特征剪贴的方法．允许从已构建的产品模型中“剪切”下一部分特征和约束几何对象，然后“粘贴”在模型的另一地方．本文的方法支持对模型的重用、交互构建特征标准件库和特征轮廓库以及用这些标准件进行设计．

关键词：生成型特征设计特征剪贴标准件 CAD

经腹部多普勒超声和经阴道多普勒超声在早期异位妊娠诊断中的应用价值

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中国妇幼保健 2018年第7期33卷 1628-1630页

作者：杨明荣席金平谢双江汉油田总医院五七院区功能科湖北潜江433121

目的探讨经腹部多普勒超声和经阴道多普勒超声在早期异位妊娠诊断中的应用价值,为明确早期异位妊娠的最佳诊断方式,实现异位妊娠患者的早诊断、早治疗提供参考。方法纳入江汉油田总医院五七院区2015年1月-2016年10月期间收治的经病理检... 详细信息

目的探讨经腹部多普勒超声和经阴道多普勒超声在早期异位妊娠诊断中的应用价值,为明确早期异位妊娠的最佳诊断方式,实现异位妊娠患者的早诊断、早治疗提供参考。方法纳入江汉油田总医院五七院区2015年1月-2016年10月期间收治的经病理检查证实为早期异位妊娠的69例患者作为研究对象,分别应用经腹部多普勒超声和经阴道多普勒超声对69例患者实施诊断,观察两种诊断方法的声像图表现及诊断结果。结果 (1)经腹部多普勒超声和经阴道多普勒超声检查均可见患者子宫体积正常或增大,子宫内膜有不同程度的增厚。经腹部多普勒超声检查显示患者附件区包块呈面包圈状,经阴道多普勒超声检查显示附件区面包圈状包块内有胚芽。(2)经阴道多普勒超声检查的附件区包块、胚芽、卵黄囊、胎心、假孕囊检出率分别为97.10%、27.54%、44.93%、34.78%、17.39%,与经腹部多普勒超声的84.06%、8.70%、23.19%、11.59%、4.35%比较,差异有统计学意义(均P<0.05)。(3)经阴道多普勒超声诊断结果与病理诊断结果的符合率为95.65%,高于经腹部多普勒超声的82.61%,差异有统计学意义(P<0.05)。结果与经腹部多普勒超声比较,经阴道多普勒超声在早期异位妊娠诊断中所具有的应用价值优势更明显。

关键词：经腹部多普勒超声经阴道多普勒超声早期异位妊娠诊断应用价值

Periodic Wave Solutions and Their Limits for the Modified Kd V–KP Equations

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Acta Mathematica Sinica,English Series 2015年第6期31卷 1043-1056页

作者： ming SONG Zheng rong LIU Chen xi YANG Department of Mathematics Shaoxing University Department of Mathematics Yuxi Normal University Department of Mathematics South China University of Technology

In this paper, we use the bifurcation method of dynamical systems to study the periodic wave solutions and their limits for the modified KdV-KP equations. Some explicit periodic wave solutions are obtained. These solutions contain smooth periodic wave solutions and periodic blow-up solutions. Their limits contain solitary wave solutions, periodic wave solutions, kink wave solutions and unbounded solutions.

关键词： Bifurcation method modified KdV-KP equation periodic wave solutions limits

Co-registered photoacoustic and ultrasound imaging for tongue cancer detection

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Journal of Innovative Optical Health Sciences 2018年第3期11卷 20-27页

作者： Heng Guo Weizhi Qi ming He Jian rong Lei xi School of Physical Electronics University of Electronic Science and Technology of China ChengduSichuanP.R.China Center for Information in Biomedicine University of Electronic Science and Technology of China SichuanP.R.China

Tongue cancer is an increasingly common disease with high morbidity,Besides clinical obser-vation,biomedical imaging techniques have been investigated for early detection of *** this paper,we proposed a co-registered dual-modality photoacoustic(PA)and *** imaging technique to simultaneously map the functional and structural information ofhuman tongue,which has the potential to detect and diagnose tongue cancer in early stage,Theimaging probe comprises a 20-MHz side-view focused transducer for ultrasound imaging and PAdetection,a light path constructed by a multimode optical fiber,and a prism for PA *** experiments were conducted to evaluate the performance of the system includingpenetration depth,spatial resolution and signal-to-noise *** vivo imaging of animaltumor and human tongue was carried out to show the feasibility of the proposed technique todetect tumor lesions in human *** results of phantom and in vivo experiments suggestthat the proposed technique has the potential to detect the early-stage cancer lesions in humantongue.

关键词： Tongue cancer photoacoustic imaging multimodal imaging.

Evolution of Two Non-identical Two-Level Atoms in Two-Mode Cavity Fields

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Communications in Theoretical Physics 2009年第2期51卷 215-220页

作者： ZHANG ming WANG Wen-Gang DAI Hong-Yi xi Zai-rong College of Mechatronics Engineering and Automation National University of Defense Technology Changsha 410073China College of Science National University of Defense Technology Changsha 410073 China Key Laboratory of Systems and Control Chinese Academy of Sciences Beijing 100080 China

In this paper, we investigate the evolution of two non-identical two-level atoms in two-mode cavity fields. We demonstrate the death and rebirth effect of entanglement for two non-identical two-level atoms under some initial conditions. It is also exemplified that entangled states of two nonidentical two-level atoms can be generated by entangled two-mode cavity fields. This research can be considered as a first step to further investigate the problem of manipulating two nonidentical two-level atoms in two-mode cavity fields.

关键词： entanglement dynamics atorn-cavity fields

Severe digital ischemia coexists with thrombocytopenia in malignancy-associated antiphospholipid syndrome: A case report and review of literature

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World Journal of Clinical Cases 2021年第36期9卷 11457-11466页

作者： Jia-Lei Chen xi Yu rong Luo ming Liu Department of Orthopedics West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Rehabilitation West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Paraneoplastic syndromes are characterized by atypical clinical *** reports of hepatocellular carcinoma(HCC)paraneoplastic phenomena have been *** usually manifest as one type in an individual,but it is not common for the two clinical manifestations to occur *** SUMMARY A 52-year-old female patient was admitted to hospital with pale skin and numbness of the second to fifth fingers in the left hand,which rapidly developed into severe digital *** tomography angiography revealed uneven thickness of the left ulnar artery with severe local luminal *** analysis during hospitalization showed persistent mild to medium thrombocytopenia and insensitive to hormonal *** antibody testing showed high titer of IgG anticardiolipin antibodies(aCLs),IgA aCLs,IgG anti-β2-glycoprotein-I(anti-β2 GPI),and IgA anti-β2 *** exact diagnosis was HCC when the high a-fetoprotein levels,computed tomography findings,and the history of chronic hepatitis B came *** was a rare case of coexisting manifestations as presenting symptoms of malignancy-associated antiphospholipid *** patient underwent several operations,antithrombotic treatments and hormonal ***,the patient refused chemotherapy and died 8 wk after *** This report highlights the importance of atypical clinical changes that could alert the physicians to vigilance for a concomitant underlying malignancy.

关键词： Antiphospholipid syndrome Digital ischemia Thrombocytopenia Malignancy Case report

The synthesis of B,N-carbon dots by a combustion method and the application of fluorescence detection for Cu^2+

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Chinese Chemical Letters 2017年第5期28卷 1119-1124页

作者： ming-Cong rong Ke-xin Zhang Yi-Ru Wang xi Chen Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis&Instrumentation College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China State Key Laboratory of Marine Environmental Science Xiamen UniversityXiamen 361005China Key Laboratory of Global Change and Marine-Atmospheric Chemistry Third Institute of OceanographyState Oceanic AdministrationXiamen 361005China

Heteroatom doping is an efficient approach to regulate the fluorescence properties of carbon *** aminophenylboronic acid as the raw material,a combustion method was developed for the synthesis of boron,nitrogen-doped carbon dots（B,N-carbon dots）.The B,N-carbon dots emitted green fluorescence and displayed high resistance to both photo bleaching and ionic strength.A facile fluorescence sensing approach for Cu^2＋ was fabricated via static fluorescence *** optimal conditions,a rapid detection of Cu^2＋ could be completed in 2 min with a linearity ranging from 1 μmol/L to 25 μmol/L and a detection limit of 0.3 μmol/L Furthermore,the proposed method showed potential applications for the detection of Cu^2＋ in natural water samples.

关键词： Combustion method B N-carbon dots Fluorescence method Cu^2+ Static fluorescence quenching

Super Tough Hydrogels with Self-adaptive Network Facilitated by Liquid Metal

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Chinese Journal of Polymer Science 2023年第6期41卷 866-873,I0006页

作者： rong-Ze Gao Yu-xi Li Jian-Hui Yan Xue-Rui Ma Xu-ming xie Key Laboratory of Advanced Materials(MOE) Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

Liquid metals(LM)refer to Ga-based alloys with low melting points such as Eutectic GaInSn alloys(EGaInSn),which have excellent fluidity,flexibility and low toxicity at room *** this work,by incorporating EGaInSn into poly(acrylic acid)(PAA)hydrogels as dynamic crosslinkers and effective energy-dissipating units,tough and strong PAA-LM hydrogels are prepared through the interactions between the oxide layers on the surface of LM and carboxyl groups of PAA ***,owing to the fluidity of LM,one LM droplet as a cross-linking point may change its shape or break into more and smaller droplets in the hydrogels upon *** hydrogels with self-adaptive networks can be fabricated by mechanical training through cyclic stretch at a certain ***,the networks of the hydrogels are further homogenized,and the hydrogels are significantly toughened during the training due to the increased cross-linking density from the larger number of smaller LM *** a 5-cycle training at the maximum strain of 500%and 24 h recovering,the tensile strength and initial modulus of the PAA-LM hydrogels can be increased from 355 kPa to 597 kPa and 71 kPa to 166 kPa,respectively,while the elongation at break only decreases from 1491%to 1034%.

关键词： temperature. linking stretching

Mechanistic insight into the synergy between nickel single atoms and nanoparticles on N-doped carbon for electroreduction of CO2

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Journal of Energy Chemistry 2025年第1期100卷 327-336页

作者： mingdong Sun Wenwen Guan Cailing Chen Chao Wu xiaoling Liu Biao Meng Tao Chen Yu Han Jun Wang Shibo xi Yu Zhou State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Advanced Membranes and Porous Materials Center Physical Sciences and Engineering Division King Abdullah University of Science and Technology Institute of Sustainability for Chemicals Energy and Environment A*STAR (Agency for Science Technology and Research) College of Materials Science and Engineering Sichuan University

The synergy of single atoms （SAs） and nanoparticles （NPs） has demonstrated great potential in promoting the electrocatalytic carbon dioxide reduction reaction （CO2RR）;however,the rationalization of the SAs/NPs proportion remains one challenge for the catalyst ***,a Ni2+-loaded porous poly（ionic liquids）(PIL) precursor synthesized through the free radical self-polymerization of the ionic liquid monomer,1-allyl-3-vinylimidazolium chloride,was pyrolyzed to prepare the Ni,N co-doped carbon materials,in which the proportion of Ni SAs and NPs could be facilely modulated by controlling the annealing *** catalyst Ni-NC-1000 with a moderate proportion of Ni SAs and NPs exhibited high efficiency in the electrocatalytic conversion of CO2into *** Ni K-edge X-ray absorption near-edge structure （XANES） spectra and theoretical calculations were conducted to gain insight into the synergy of Ni SAs and *** charge transfer from Ni NPs to the surrounding carbon layer and then to the Ni SAs resulted in the electron-enriched Ni SAs active *** the electroreduction of CO2,the coexistence of Ni SAs and NPs strengthened the CO2activation and the affinity towards the key intermediate of*COOH,lowering the free energy for the potential-determining*CO2→*COOH step,and therefore promoted the catalysis efficiency.

关键词： Single atom catalyst Synergy effect Carbon catalyst Electrocatalysis

Dynamical signatures of the one-dimensional deconfined quantum critical point

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Chinese Physics B 2022年第5期31卷 73-82页

作者： Ning xi rong Yu Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices Renmin University of ChinaBeijing 100872China

We study the critical scaling and dynamical signatures of fractionalized excitations at two different deconfined quantum critical points(DQCPs)in an S=1/2 spin chain using the time evolution of infinite matrix product *** scaling of the correlation functions and the dispersion of the conserved current correlations explicitly show the emergence of enhanced continuous symmetries at these *** dynamical structure factors in several different channels reveal the development of deconfined fractionalized excitations at the ***,we find an effective spin-charge separation at the DQCP between the ferromagnetic(FM)and valence bond solid(VBS)phases,and identify two continua associated with different types of fractionalized excitations at the DQCP between the X-direction and Z-direction FM *** findings not only provide direct evidence for the DQCP in one dimension but also shed light on exploring the DQCP in higher dimensions.

关键词： one-dimensional antiferromagnetism spin frustration deconfined quantum critical point spin dynamics infinite time-evolving block decimation