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世界杯会徽设计风格演变与整合传播创新

包装工程 2024年第18期45卷 223-230页

作者：俞海滨王允婕曹宇彤上海大学上海201900

目的分析历届国际足联世界杯会徽设计风格演进,以丰富世界杯会徽设计的专题研究,也为相关体育会徽设计提供一些借鉴。方法梳理国际足联世界杯会徽各个阶段的设计风格及其特点,探究国际足联世界杯会徽设计风格演进。结果国际足联世界杯... 详细信息

目的分析历届国际足联世界杯会徽设计风格演进,以丰富世界杯会徽设计的专题研究,也为相关体育会徽设计提供一些借鉴。方法梳理国际足联世界杯会徽各个阶段的设计风格及其特点,探究国际足联世界杯会徽设计风格演进。结果国际足联世界杯会徽设计经历了从写实、图腾风格,到简约、人文风格为主的四个阶段,并在不同历史背景中逐渐具备艺术价值、文化价值和商业价值。结论体育会徽设计在定位、设计、应用及传播进程中,既要突破传统的平面设计语言,又要把握语言钉和视觉锤的匹配,在多维感知整合、新媒体下动态呈现,还要展示共创体验等,全方位传递赛事价值。

关键词：国际足联世界杯会徽设计风格设计特点整合传播

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重型抑郁障碍患者默认网络静态与动态功能连接变化

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中国医学影像技术 2024年第4期40卷 598-602页

作者：李宏吉钰琪王鋆杰梁佩鹏李坤成山西医科大学第一医院/第一临床医学院精神卫生科山西太原030001 精神障碍人工智能辅助诊疗山西省重点实验室山西太原030001 首都师范大学心理学院北京100048 首都医科大学宣武医院放射与核医学科北京100053 磁共振成像脑信息学北京市重点实验室北京100053

目的基于静息态功能MRI(rs-fMRI)观察重型抑郁障碍(MDD)患者默认网络(DMN)静态与动态功能连接变化。方法回顾性分析55例MDD患者(MDD组)及35名健康体检者(对照组)头颅高分辨率结构图像及rs-fMRI;以Matlab平台CONN工具箱进行图像预处理... 详细信息

目的基于静息态功能MRI(rs-fMRI)观察重型抑郁障碍(MDD)患者默认网络(DMN)静态与动态功能连接变化。方法回顾性分析55例MDD患者(MDD组)及35名健康体检者(对照组)头颅高分辨率结构图像及rs-fMRI;以Matlab平台CONN工具箱进行图像预处理及独立成分分析(ICA)以提取DMN;比较组间DMN与全脑静态与动态功能连接变化;采用Pearson相关性分析观察MDD组与对照组存在差异脑区DMN与汉密尔顿抑郁量表-24项(HAMD-24)、汉密尔顿焦虑量表(HAMA)及韦氏智力测验评分的相关性。结果相比对照组,MDD组DMN与丘脑、楔前叶及中央前回静态功能连接均减弱(P均<0.05);MDD组DMN与丘脑功能连接强度与HAMD-24评分呈低度负相关(r=-0.333,P=0.014)。相比对照组,MDD组DMN内侧前额叶皮层、左/右外侧顶叶与伏隔核,以及左外侧顶叶、后扣带回与丘脑动态功能连接均减弱。MDD组DMN内侧前额叶皮层-伏隔核、后扣带回-丘脑动态功能连接强度与HAMD-24评分呈低度正相关(r=0.313,P=0.019;r=0.311,P=0.021)。结论 MDD患者DMN与局部脑区存在静态与动态连接异常,部分与抑郁症严重程度相关。

关键词：抑郁症默认网络磁共振成像功能连接

Acceleration of unsteady vortex lattice method via dipole panel fast multipole method

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Chinese Journal of Aeronautics 2021年第2期34卷 265-278页

作者： Shuai DENG Chen JIANG yunjie wang Haowen wang School of Aerospace Engineering Tsirtgliua UniversityBeijing 100084China

The Unsteady Vortex Lattice Method(UVLM) is a medium-fidelity aerodynamic tool that has been widely used in aeroelasticity and flight dynamics simulations. The most timeconsuming step is the evaluation of the induced velocity. Supposing that the number of bound and wake lattices is N and the computational cost is O (N2), we present an OeNT Dipole Panel Fast Multipole Method(DPFMM) for the rapid evaluation of the induced velocity in UVLM. The multipole expansion coefficients of a quadrilateral dipole panel have been derived in spherical coordinates, whose accuracy is the same as that of the Biot-Savart kernel at the same truncation degree *** methods(the loosening method and the shrinking method) are proposed and tested for space partitioning volumetric panels. Compared with FMM for vortex filaments(with three harmonics),DPFMM is approximately two times faster for N2 [103,106]. The simulation time of a multirotor(N~104) is reduced from 100 min(with unaccelerated direct solver) to 2 min(with DPFMM).

关键词： Boundary element method Dipole potentials Fast multipole method Potential flow Unsteady vortex lattice method

Design and application of an Electric Tail Rotor Drive Control(ETRDC) for helicopters with performance tests

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Chinese Journal of Aeronautics 2018年第9期31卷 1894-1901页

作者： Yuwen ZHANG Chen JIANG yunjie wang Fan SUN Haowen wang School of Aerospace Tsinghua University

With the development of electric helicopters’ motor technology and the widespread use of electric drive rotors, more aircraft use electric rotors to provide thrust and directional *** a helicopter tail rotor, the wake of the main rotor influences the tail rotor’s inflow and *** the procedure of controlling, crosswind will also cause changes to the tail disk load. This paper describes requirements and design principles of an electric motor drive and variable pitch tail rotor system. A particular spoke-type architecture of the motor is designed, and the performance of blades is analyzed by the CFD method. The demand for simplicity of moving parts and strict constraints on the weight of a helicopter makes the design of electrical and mechanical components challenging. Different solutions have been investigated to propose an effective alternative to the mechanical actuation system. A test platform is constructed which can collect the dynamic response of the thrust control. The enhancement of the response speed due to an individual motor speed control and variable-pitch system is validated.

关键词： Electric tail rotor Helicopter More Electric Aircraft(MEA) Propulsion optimization Tail rotor

Correlation of tumor necrosis factor receptor superfamily 13B variation with sporadic intracranial aneurysm and clinical characteristics in Han Chinese populations

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Neural Regeneration Research 2010年第3期5卷 236-240页

作者： Pengfei Wu Anhua Wu yunjie wang Department of Neurosurgery First Affiliated Hospital of China Medical University Shenyang 110001 Liaoning Province China

BACKGROUND： Inflammatory reaction correlates with sporadic intracranial aneurysm （IA）. Variation of tumor necrosis factor receptor superfamily 13B （TNFRSF13B）, an inflammatory mediator receptor, may associate with IA. OBJECTIVE： To explore the relationship between TNFRSF13B gene and sporadic IA, as well as the clinical characteristics of sporadic IA. DESIGN, TIME AND SETTING： Case-control study of genetic association was performed at the Experimental Technology Center of China Medical University from November 2006 to January 2008. PARTICIPANTS： A total of 367 patients with IA, confirmed by three-dimensional computed tomography angiography, magnetic resonance angiography, digital subtraction angiography, and neuro surgery, were admitted to the Department of Neurosurgery, First Affiliated Hospital of China Medical University from 2006 to 2007, and were selected as the case group. All patients were Han, with no family history of IA. In addition, a total of 396 non-lA patients were selected as control subjects. METHODS： Peripheral vein blood was harvested to extract whole blood genomic DNA. Genotyping and TNFRSF13B single nucleotide polymorphism （SNP） rs11078355 G〉A allele polymorphisms were determined by polymerase chain reaction-restriction fragment length polymorphism. The relationship of TNFRSF13B SNP rs11078355 G〉A polymorphisms to IA and IA clinical characteristics were analyzed using the chi-square and two-sided test. MAIN OUTCOME MEASURES： TNFRSF13B SNP rs11078355 G〉A genotype distribution. RESULTS： In the IA patients, TNFRSF13B SNP rs11078355 G〉A genotype frequency was significantly increased （X2 = 16.306, odds ratio = 1.881,95% confidence interval = 1.382 2.560, P 〈 0.001）. In IA patients aged 〉 65 years, the frequency of TNFRSF13B SNP rs11078355 GA ＋ AA genotype was significantly greater than the GG genotype （X2 = 26.604, odds ratio = 5.248, 95% confidence interval = 2.662 10.345, P 〈 0.001）. CONCLUSION： The TNFRSF13B gene may associate with sporadic IA in Ha

关键词： intracranial aneurysm single nucleotide polymorphism tumor necrosis factor receptor superfamily 13B gene

Is type Ⅰ alpha 2 collagen gene responsible for intracranial aneurysm in Northeast China?

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Neural Regeneration Research 2013年第5期8卷 445-451页

作者： Pengfei Wu Bo Li Anhua Wu yunjie wang Department of Neurosurgery First Affiliated Hospital of China Medical University Department of Developmental Biology Key Laboratory of Cell Biology Ministry of Public Health of China China Medical University

In this study, we investigated whether a single nucleotide polymorphism （rs42524 G 〉 C） in the type I alpha 2 collagen gene was associated with sporadic ruptured intracranial aneurysm or its clinical characteristics in patients from Northeast China. Genotyping of the rs42524 G 〉 C polymorphism was carried out using a polymerase chain reaction-restriction fragment length polymorphism assay. The data showed that the frequency of the rs42524 GC ＋ CC genotype was significantly higher than the GG genotype among intracranial aneurysm patients whose Hunt and Hess grading scale was 〉 3. In addition, the rs42524 G 〉 C genotype was found to have a statistically significant association with intracranial aneurysm risk. These findings indicate that the type I alpha 2 collagen gene gene may be involved in a predisposition to intracranial aneurysm in the Northeast Chinese population. Crucially, the rs42524 C allele may be an important risk factor for increased severity of the condition in patients with ruptured intracranial aneurysms.

关键词： neural regeneration clinical practice intracranial aneurysm type I collagen gene single nucleotide polymorphism polymerase chain reaction-restriction fragment length polymorphism assay susceptibility risk factors neuroregeneration

碱金属钼酸盐结构与性能关系的第一性原理研究

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人工晶体学报 2024年第6期53卷 999-1007页

作者：张博王云杰齐亚杰丁家福和志豪苏欣伊犁师范大学物理科学与技术学院伊宁835000 伊犁师范大学新疆凝聚态相变与微结构实验室伊宁835000

基于第一性原理比较研究Li_(2)MoO_(4)、Na_(2)MoO_(4)、K_(2)MoO_(4)和Rb_(2)MoO_(4)四种晶体的晶体结构、电子结构、原子布居、电荷密度分布和双折射率。研究结果表明四种晶体的带隙为直接带隙,禁带宽度相差不大,均在4.3 eV附近。随... 详细信息

基于第一性原理比较研究Li_(2)MoO_(4)、Na_(2)MoO_(4)、K_(2)MoO_(4)和Rb_(2)MoO_(4)四种晶体的晶体结构、电子结构、原子布居、电荷密度分布和双折射率。研究结果表明四种晶体的带隙为直接带隙,禁带宽度相差不大,均在4.3 eV附近。随着碱金属原子半径增加,其电子轨道对能带的贡献会向高能侧靠近。键布居数和电子密度分布情况表明,Mo与O之间形成共价键,碱金属原子与O形成离子键。四种晶体中双折射率最高者为Rb_(2)MoO_(4),其在1064 nm处的双折射率为0.0225。晶体折射率数据表明碱金属原子半径与双折射率正相关。本文研究可为钼酸盐在非线性光学晶体方面的应用提供一定的参考。

关键词：碱金属钼酸盐光学性质双折射率能带结构第一性原理密度泛函理论

城乡融合发展背景下城乡供水一体化现状分析及对策研究--以西安高新区为例

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中国水能及电气化 2024年第9期 67-70,61页

作者：何伟宁李娜王云杰西安高新区农业农村和水务局陕西西安710065 西安市长安区沣河管理站陕西西安710115

文章以西安市高新区城乡供水一体化工作参与者视角,探讨分析了城乡融合发展背景下高新区供水一体化现状、存在的问题和原因,提出了优化规划、推进市场化改革、完善水价机制、建立健全监督机制等对策建议,以期加快推进高新区城乡供水一... 详细信息

文章以西安市高新区城乡供水一体化工作参与者视角,探讨分析了城乡融合发展背景下高新区供水一体化现状、存在的问题和原因,提出了优化规划、推进市场化改革、完善水价机制、建立健全监督机制等对策建议,以期加快推进高新区城乡供水一体化进程,助力城乡融合。

关键词：城乡融合发展供水一体化农村供水改革

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5G LAN应用及安全探讨

通信技术 2024年第2期57卷 193-199页

作者：陈福莉蒋耀辉汪超王蕴杰虞江中电科网络安全股份有限公司四川成都610041 中国人民解放军空军部队北京100843 中国人民解放军联勤保障部队湖北武汉430010 成都大学四川成都610106

第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)在R16中启动了5G局域网(Local Area Network,LAN)项目研究,该技术让5G网络具备了提供广域局域网的能力,为5G网络与工业网络的融合提供了助力。首先介绍了5G LAN的标准演进... 详细信息

第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)在R16中启动了5G局域网(Local Area Network,LAN)项目研究,该技术让5G网络具备了提供广域局域网的能力,为5G网络与工业网络的融合提供了助力。首先介绍了5G LAN的标准演进、实现原理、关键技术,重点说明了5G LAN在家庭/园区网、企业网络、工业网络等的典型应用;其次分析了5G LAN中基础平台、网络接入、信息隔离、信息传输等方面的主要安全问题,并分别从基础设备计算平台、网络和系统安全防护、系统隔离防护3个方面提出了解决思路和方法,提升5G LAN的整体安全防护能力。

关键词：局域网工业网络 5G 虚拟网络组