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位置敏感语法的三类主要敏感位置

语言文字应用 2024年第1期 83-97页

作者：姚双云梁彩梅华中师范大学语言与语言教育研究中心

位置敏感语法是互动语言学领域富有影响力的语法观，但言谈互动中究竟有哪些敏感位置？尚需进一步厘清。本文在现有研究的基础上，做进一步探讨，将互动中的敏感位置分为三大基本类型：1）话轮序列类位置，包括TCU位置、话轮位置、序列... 详细信息

位置敏感语法是互动语言学领域富有影响力的语法观，但言谈互动中究竟有哪些敏感位置？尚需进一步厘清。本文在现有研究的基础上，做进一步探讨，将互动中的敏感位置分为三大基本类型：1）话轮序列类位置，包括TCU位置、话轮位置、序列位置；2）身体活动类位置，包括TCU和话轮参照位置、序列参照位置；3）行为进程类位置，包括行为进程位置、行为调适位置。会话中，语言资源和身体活动资源的选择往往要考虑位置因素，不同的敏感位置上，其互动功能也不尽相同。

关键词：位置敏感语法话轮序列类位置身体活动类位置行为进程类位置

Erythrodermic mycosis fungoides: A case report

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World Journal of Clinical Cases 2024年第1期12卷 130-135页

作者： Wu-Bing Xu Ya-Ping Zhang Su-Ping Zhou Hao-yang Bai Department of Radiology Shaoxing People’s HospitalKey Laboratory of Functional Molecular Imaging of Tumor and Interventional Diagnosis and Treatment of Shaoxing CityShaoxing 312000Zhejiang ProvinceChina

BACKGROUND Mycosis fungoides is the most common primary cutaneous T-cell lymphoma,whereas generalized erythroderma is *** this report,we describe a case of mycosis fungoides with generalized erythroderma using complete clinical data and[18F]fluoroDglucose positron emission tomography/computed tomography(18F-FDG PET/CT)*** SUMMARY Systemic skin redness with desquamation for three years confirmed mycosis fungoides within one *** patient underwent left axillary lymphadenectomy biopsy;pathological biopsy suggested abnormal T-cell lesions consistent with mycosis fungoides involving lymph *** patient received methotrexate,5 mg twice weekly,as part of their chemotherapy *** January half after discharge,no obvious cause of high fever,left axillary lymph nodes with red heat pain,and rupture entered our hospital for *** The 18F-FDG PET/CT is essential for early diagnosis and timely treatment.

关键词： Mycosis fungoides Positron emission tomography/computed tomography Imaging Diagnosis Differential diagnosis Treatment Case report

Independent control of circularly polarized light with exceptional topological phase coding metasurfaces

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Photonics Research 2024年第6期12卷 534-542页

作者： YICHENG LI SHICHENG WAN SHAOXUAN DENG ZHENGWEI DENG BO LV chunYING GUAN JUN yang ANDREY BOGDANOV PAVEL BELOV JINHUI SHI Key Laboratory of Photonic Materials and Devices Physics for Oceanic Applications Ministry of Industry and Information TechnologyCollege of Physics and Optoelectronic EngineeringHarbin Engineering UniversityHarbin 150001China Key Laboratory of In-Fiber Integrated Optics of Ministry of Education College of Physics and Optoelectronic EngineeringHarbin Engineering UniversityHarbin 150001China School of Physics and Engineering ITMO UniversitySt.Petersburg 197101Russia School of Information Engineering Guangdong University of TechnologyGuangzhou 510008China Qingdao Innovation and Development Center Harbin Engineering UniversityQingdao 266000China

Exceptional points,as degenerate points of non-Hermitian parity-time symmetric systems,have many unique physical *** to its flexible control of electromagnetic waves,a metasurface is frequently used in the field of *** this work,we developed a parity-time symmetric metasurface and implemented the 2πtopological phase surrounding an exceptional *** with Pancharatnam-Berry phase,the topological phase around an exceptional point can achieve independent regulation of several circular polarization *** combined the Pancharatnam-Berry phase with the exceptional topological phase and proposed a composite coding metasurface to achieve reflection decoupling of different circular *** work provides a design idea for polarimetric coding metasurfaces in the future.

关键词： properties. exceptional topological

Superior Latent Heat Eutectic Salt Na_(2)CO_(3)-Li_(2)CO_(3)-LiF for Thermal Energy Storage:Preparation and Performance Investigation

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Journal of Thermal Science 2024年第2期33卷 501-508页

作者： LI Weiwei MIAO Qi ZHANG Yelong DING Hongliang yang Sa LAI Yuan FENG Daili DING Yulong JIN Yi TAN Linghua School of Chemistry and Chemical Engineering Nanjing University of Science&TechnologyNanjing210094China National Special Superfine Powder Engineering Research Center Nanjing University of Science and TechnologyNanjing210094China Nanjing Jinhe Energy Material Co. LtdNanjing210047China School of Chemical Engineering University of BirminghamBirminghamB152TTUK School of Energy&Environmental Engineering University of Science and Technology BeijingBeijing100083China

In this paper,a novel ternary eutectic salt Na_(2)CO_(3)-Li_(2)CO_(3)-LiF was designed and investigated for concentrated solar power(CSP).The FactSage software was used to predict the composition and eutectic point of Na_(2)CO_(3)-Li_(2)CO_(3)-*** microstructure,thermophysical properties,and thermal stability of eutectic salts were experimentally measured using various analytical *** a mass ratio of 57%:32%:11%,the eutectic salt exhibited excellent thermal storage properties with a fusion enthalpy of 413 J/g and a melting point of 426.8℃.The excellent thermal stability of the eutectic salt was reflected by a weight loss of only 0.8% at 600℃.

关键词： phase change materials ternary eutectic salt latent heat thermal stability

Hydrophobic long-chain two-dimensional perovskite scintillators for underwater X-ray imaging

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Rare Metals 2024年第1期43卷 175-185页

作者： Jin-Xiao Zheng Zi-An Zhou Tiao Feng Hui Li Cheng-Hua Sun NüWang yang Tian Yong Zhao Shu-Yun Zhou Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Laboratory of Bioinspired Smart Interfacial Science and Technology of the Ministry of Education Beijing Key Laboratory of Bioinspired Energy Materials and DevicesSchool of ChemistryBeijing Advanced Innovation Center for Biomedical EngineeringBeihang UniversityBeijing 100191China Department of Engineering Physics Tsinghua University and Key Laboratory of Particle and Radiation Imaging Ministry of EducationTsinghua UniversityBeijing 100084China e-mail:yangt@***

The underwater X-ray imaging technology development is significant to subaqueous target reconnaissance/detection/identification, subfluvial archaeology,submerged resource exploration, etc. As the core of X-ray imaging detection, the scintillator has been plagued by inherent moisture absorption and decomposition, and strict requirements for seamless packaging and ***, we designed a manganese-doped two-dimensional(2D) perovskite scintillator modified by hydrophobic longchain organic amine through the combination of component and doping engineering. The modified perovskites show high water repellency that can be used as an underwater X-ray scintillator. X-ray images of aquatic organisms or other objects with a high spatial resolution of10 lp·mm^(-1) at a big view field(32 mm × 32 mm) were obtained by scintillation screen. This hydrophobic perovskite scintillator based on molecular design is of great promise in underwater X-ray nondestructive testing technology development.

关键词： Two-dimensional perovskite Hydrophobic Scintillators Underwater X-ray imaging Underwater nondestructive testing technology

基于金属-绝缘体相变材料的高钝感集成半导体桥芯片设计

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火工品 2024年第2期 1-7页

作者：程鹏涛李慧骆建军冯春阳骆懿任炜梁小会杭州电子科技大学浙江杭州310018 陕西应用物理化学研究所瞬态化学效应与控制全国重点实验室陕西西安710061

为了提高半导体桥(SCB)火工品的安全性与可靠性,通过片上集成方式,在SCB两端并联金属-绝缘体相变材料VO_(2)对其进行分流防护。提出蛇形设计方法来降低VO_(2)薄膜在金属态的电阻值,使其与SCB阻值相匹配,测试了不同长宽比的VO_(2)薄膜及... 详细信息

为了提高半导体桥(SCB)火工品的安全性与可靠性,通过片上集成方式,在SCB两端并联金属-绝缘体相变材料VO_(2)对其进行分流防护。提出蛇形设计方法来降低VO_(2)薄膜在金属态的电阻值,使其与SCB阻值相匹配,测试了不同长宽比的VO_(2)薄膜及相应的集成芯片在室温(25℃)至100℃范围内的电阻曲线,并对集成芯片及单独SCB在1A1W5min和1.5A2.25W5min安流试验中的传热过程进行了仿真。结果表明:蛇形设计可以有效降低VO_(2)薄膜电阻,其阻值与蛇形长宽比(Ws/L)成反比;VO_(2)薄膜能够对SCB起到一定的分流防护作用;集成芯片尺寸对安流试验热传导过程的平衡温度有一定影响;能够通过1.5 A安流试验的最大VO_(2)阻值为5Ω,这是下一步的设计目标。

关键词：半导体桥(SCB) 二氧化钒(VO_(2)) 集成芯片电阻仿真

Effect of V on high-temperature mechanical properties of Al-5Cu-1.5Ni alloy

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Journal of Iron and Steel Research(International) 2024年第7期31卷 1792-1810页

作者： Jun-ge Cui Yong-bin Chen Xiang-zhou Fu Hai-long yang Han-zhang Wang An-min Li Li-wen Pan School of Resources Environment and MaterialsGuangxi UniversityNanning 530004GuangxiChina State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures Nanning 530004GuangxiChina Guangxi Higher Education Key Laboratory of Advanced Materials Nanning 530004GuangxiChina

The effects of V on microstructure,room temperature,and high-temperature(350℃)mechanical properties of Al-5Cu-1.5Ni alloy were *** results show that Al-5Cu-1.5Ni-xV alloys mainly compriseα-Al,Al_(2)Cu,Al_(3)(Ni,Cu)_(2),Al_(3)Ni,Al7Cu4Ni,and Al_(10)V *** addition of V can signally refineα-Al dendritic structure,which improves the mechanical properties of the as-cast alloys at room and high *** T6 heat treatment(540℃/12 h/WC+170℃/8 h/AC),α-Al,network skeleton structure Al_(3)(Ni,Cu)_(2),and Al_(10)V phases all show coarsening,while the fine nano-θ'-Al_(2)Cu precipitated from the matrix and dispersed *** introduction of V promotes the quantity of precipitatedθ'-Al_(2)Cu *** ultimate tensile strength of the heat-treated alloys at room and high temperatures is greatly improved compared to that of the as-cast *** highest high-temperature ultimate tensile strength of the alloys with V is 111.8 MPa,21.5%higher than that of the base *** analysis shows that the improvement of high-temperature mechanical properties after heat treatment is mainly due to the introduction of V,increasing the precipitated quantity of nano-θ'-Al_(2)Cu particles and improving its thermal *** dispersion strengthening effect ofθ'-Al_(2)Cu particles exceeds the weakening effect of other adverse microstructures on the mechanical properties.

关键词： Al-Cu-Ni-V alloy θ'-Al_(2)Cu phase Heat treatment Microstructure Mechanical property

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平面并联机器人离线PID控制优化研究

机械设计与制造 2024年第5期399卷 156-160页

作者：刘一扬王春燕郑州财经学院机电与汽车工程学院河南郑州450000 河北轨道运输职业技术学院机电系河北石家庄050000

为了使平面并联机器人在闭环控制系统中具有更稳定的控制性能。对此,这里构建了平面五杆并联机器人动力学模型及其控制系统模型,给出了控制系统的增益矢量p。对机器人系统模型进行离线PID控制优化,通过控制增益来设计控制系统中的增益矢... 详细信息

为了使平面并联机器人在闭环控制系统中具有更稳定的控制性能。对此,这里构建了平面五杆并联机器人动力学模型及其控制系统模型,给出了控制系统的增益矢量p。对机器人系统模型进行离线PID控制优化,通过控制增益来设计控制系统中的增益矢量p,从而实现非线性单目标动态优化(NLMODOP)。在NLMODOP中加入动态约束,采用带约束处理机制的差分进化(DE)算法求解平面并联机器人的非线性规划问题,进而处理不稳定的动态优化。对机器人模型中的五个连杆进行仿真实验,并对有无DE算法控制的仿真结果进行了比较。结果表明:相比于无DE算法,采用DE算法下的机器人系统模型的连杆跟踪位移基本无跟踪误差。说明基于差分进化算法的平面并联机器人离线PID控制优化具有较好的控制精度和跟踪性能。

关键词：平面五杆并联机器人离线PID控制优化非线性单目标动态优化差分进化算法

不同形态氮添加对多年生高寒栽培草地土壤理化性质和微生物群落结构的影响

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环境科学 2024年第6期45卷 3595-3604页

作者：童永尚张春平董全民杨增增张小芳霍丽安曹铨张正社俞旸杨晓霞青海大学畜牧兽医科学院青海省畜牧兽医学院西宁810016 青海省高寒草地适应性管理重点实验室西宁810016 青海大学三江源区高寒草地生态教育部重点实验室西宁810016

探究不同氮素形态对多年生高寒栽培草地土壤理化性质和微生物群落结构的影响,以期为制定多年生高寒栽培草地氮添加方案提供科学依据.于2022年6月,在青海省海南藏族自治州共和县巴卡台农牧场以建植4龄的青海草地早熟禾(Poa pratensis Qin... 详细信息

探究不同氮素形态对多年生高寒栽培草地土壤理化性质和微生物群落结构的影响,以期为制定多年生高寒栽培草地氮添加方案提供科学依据.于2022年6月,在青海省海南藏族自治州共和县巴卡台农牧场以建植4龄的青海草地早熟禾(Poa pratensis Qinghai)+青海中华羊茅(Festuca sinensis Qinghai)混播草地为研究对象,以不施肥为对照(CK),设置3个不同形态氮素处理,分别为U:尿素(酰胺态氮)、A:硫酸铵(铵态氮)和N:硝酸钙(硝态氮),各处理的氮素施用量均为67.5 kg·(hm^(2)·a)^(-1),对不同处理下土壤养分和微生物群落组成及多样性进行分析.结果表明,外源铵态氮输入显著提高了NH_(4)^(+)-N含量、AP含量和EC,酰胺态氮输入显著提高了SOC含量和TN含量,硝态氮输入显著提高了NO_(3)^(-)-N含量、AN含量和TC含量.外源氮输入改变了土壤细菌和真菌群落结构以及优势菌门和属的相对丰度,但对细菌和真菌群落的Alpha多样性没有显著影响.主坐标分析(PCo A)表明,不同形态氮添加对细菌群落的Beta多样性具有显著影响,而对真菌群落影响不显著.冗余分析(RDA)表明,氮添加主要通过土壤铵态氮来改变微生物群落组成和结构.综合而言,在青藏高原多年生栽培草地土壤修复过程中,应优先考虑铵态氮肥.

关键词：氮素形态高寒栽培草地土壤养分微生物多样性土壤修复