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Rolling With Simplified Stream Function Velocity and Strain Rate Vector Inner Product

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Journal of Iron and Steel Research International 2012年第3期19卷 20-24页

作者： ZHAO De-wen, ZHANG Shun-hu, LI Can-ming, SONG Hong-yu, wang guo-dong (State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China) State Key Laboratory of Rolling and Automation Northeastern University Shenyang Liaoning China

The dual-stream function velocity field is reduced in order to analyze two-dimensional plate broadside roll- ing in roughing. The strain rate vector inner product and integral mean value theorem, as well as coqine vector inner product are used respectively in plastic deformation power, friction losses and shear power. A theoretical solution of roll torque and separating force for the rolling is obtained and the calculated results by the solution are compared with those measured in broadside rolling on-line. It shows that both the force and torque calculated are higher than those of measured, but the maximum relative error between them is no more than 11%.

关键词： broadside roiling roll separating force strain rate vector inner product analytical solution

APS CMOS图像传感器复位电路的设计研究

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半导体光电 2005年第B3期26卷 22-25页

作者：刘宇王国裕西安交通大学，西安710049 中科院半导体所，北京100083

本文分析了APSCMOS图像传感器传统像素复位电路引起的动态范围缩小、固定图像噪音增大和图像滞后等问题。比较了两种复位电路改进方案的优势与不足。提出了采用电荷泵电路设计APSCMOS图像传感器复位电路的新方案。该方案增加了CMOS图像... 详细信息

本文分析了APSCMOS图像传感器传统像素复位电路引起的动态范围缩小、固定图像噪音增大和图像滞后等问题。比较了两种复位电路改进方案的优势与不足。提出了采用电荷泵电路设计APSCMOS图像传感器复位电路的新方案。该方案增加了CMOS图像传感器的动态范围，消除了复位引起的固定图像噪音和图像滞后，避免了前两种方案的不足。所有的电路仿真均在CHRT0．35μm工艺基础上完成。

关键词：图像传感器动态范围固定图像噪音电荷泵

MoS2 synaptic transistor with one-step manufacture

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Science China(Information Sciences) 2025年第1期68卷 357-365页

作者： Yihao guo Yang wang Wenjie DENG Yi WU Jingtao LI Kexin LI yuehui ZHAO Songlin yu Xiaoting wang Yongzhe ZHANG Hui YAN Key Laboratory of Optoelectronics Technology of Education Ministry of China Faculty of Information TechnologyBeijing University of Technology Key Laboratory of Advanced Functional Materials Ministry of Education Faculty of Materials and ManufacturingBeijing University of Technology The 11th Research Institute of Electronics Technology Group Corporation

The synaptic transistor,which is a neuromorphic device with brain-like functions,has garnered significant attention due to characteristics such as low energy consumption,high integration,multiple functions,and high computational ***,the current synaptic transistor possesses a complicated structure and involves complex manufacturing steps,which is not conducive to low-cost,large-scale bionic ***,we introduce a simple MoS2synaptic transistor exhibiting robust synaptic *** transistor utilizes magnetron sputtering manufacture to combine the process of device metal electrode deposition and the introduction of defect states,which helps streamline the manufacturing process into a single *** long-term potentiation and long-term depression in photoelectric coordination are initially ***,biological functions,such as double pulse facilitation and the transformation behavior of short-term memory to long-term memory,are thoroughly evaluated,along with learning-forgetting-relearning ***,the device exhibits robust synaptic plasticity until incident light angles down to 30° to imitate the multi-to-one axon-cellular ***,a classical simulation of Pavlov's dog conditioned reflex is demonstrated along with the multiview extraction *** experimental results demonstrate a promising synaptic transistor with a simple structure,manufacturing technique,and excellent *** further indicates the potential for large-scale integration of bionic neuromorphic systems.

关键词： process optimization artificial synaptic device one-stepmanufacture synaptic plasticity bionic simulation

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绕圆盘空化器空化流动及阻力特性的数值分析

北京理工大学学报 2009年第3期29卷 201-204页

作者：余志毅时素果王国玉北京理工大学机械与车辆工程学院北京100081

应用基于滤波器的湍流模型(FBM)对绕圆盘空化器空化非定常流动和阻力特性进行了数值计算和分析.计算中雷诺数保持不变,通过改变来流压强获得不同的空化数;FBM模型通过二次开发嵌入至商业软件CFX中.结果表明,随着空化数的减小,绕圆盘空... 详细信息

应用基于滤波器的湍流模型(FBM)对绕圆盘空化器空化非定常流动和阻力特性进行了数值计算和分析.计算中雷诺数保持不变,通过改变来流压强获得不同的空化数;FBM模型通过二次开发嵌入至商业软件CFX中.结果表明,随着空化数的减小,绕圆盘空化器的空化区域由与空化器分离转变为附着于空化器;大空化数时,尾迹中更明显的旋涡分布将增强空化器所受阻力的周期性和波动性;随着空化数减小,圆盘空化器所受阻力变得稳定.

关键词：圆盘空化器空化流动阻力特性滤波器模型(FBM)

Anomaly Detection of Controllable Electric Vehicles through Node Equation against Aggregation Attack

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Computers, Materials & Continua 2025年第1期82卷 427-442页

作者： Jing guo Ziying wang Yajuan guo Haitao Jiang State Grid Jiangsu Electric Power Co. Ltd.Research InstituteState Grid Corporation of ChinaNanjing211100China

The rapid proliferation of electric vehicle(EV)charging infrastructure introduces critical cybersecurity vulnerabilities to power grids *** study presents an innovative anomaly detection framework for EV charging stations,addressing the unique challenges posed by third-party aggregation *** approach integrates node equations-based on the parameter identification with a novel deep learning model,xDeepCIN,to detect abnormal data reporting indicative of aggregation *** employ a graph-theoretic approach to model EV charging networks and utilize Markov Chain Monte Carlo techniques for accurate parameter *** xDeepCIN model,incorporating a Compressed Interaction Network,has the ability to capture complex feature interactions in sparse,high-dimensional charging *** results on both proprietary and public datasets demonstrate significant improvements in anomaly detection performance,with F1-scores increasing by up to 32.3%for specific anomaly types compared to traditional methods,such as wide&deep and DeepFM(Factorization-Machine).Our framework exhibits robust scalability,effectively handling networks ranging from 8 to 85 charging ***,we achieve real-time monitoring capabilities,with parameter identification completing within seconds for networks up to 1000 *** research contributes to enhancing the security and reliability of renewable energy systems against evolving cyber threats,offering a comprehensive solution for safeguarding the rapidly expanding EV charging infrastructure.

关键词： Anomaly detection electric vehicle aggregation attack deep cross-network

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随机激励下列车自动门的工作响应振型检测

振动与冲击 2014年第1期33卷 200-202页

作者：张雨王玉国李超南京工程学院汽车与轨道交通学院南京211167

采用了工作响应分析技术和PSV-400-B型激光扫描测振仪,获得列车自动门的工作响应参数,包括频率和振型。在GB/T 21563-2008模拟长寿命随机振动环境下实施工作响应参数试验,给出了实验方案和系统框图,证明了激光扫描测振仪的准确性。对于... 详细信息

采用了工作响应分析技术和PSV-400-B型激光扫描测振仪,获得列车自动门的工作响应参数,包括频率和振型。在GB/T 21563-2008模拟长寿命随机振动环境下实施工作响应参数试验,给出了实验方案和系统框图,证明了激光扫描测振仪的准确性。对于某型列车自动门,采用三种扫描测点布置方式:①包括玻璃窗的门扇,②不包括玻璃窗的门扇,③仅对玻璃窗。获得了三种扫描对象的1次工作响应参数,包括工作响应频率及其振型。

关键词：工作响应振型激光扫描列车自动门

Application of occluders in endovascular repair of aortic aneurysms

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Chinese Medical Journal 2007年第15期120卷 1366-1368页

作者： SHI Zhen-yu FU Wei-guo wang yu-qi guo Da-qiao CHEN Bin JIANG Jun-hao XU Xin YANG Jue ZHU Ting Institute of Vascular Surgery Zhongshan Hospital Fudan University Shanghai 200032 China

Since Parodi et all reported the first successful case of endovascular treatment for abdominal aortic aneurysm （AAA） in 1991, the endovascular repair has become an important option for the surgical treatment of aortic aneurysms.2-4 The occluder is a newly-developed device introduced intraluminally to block the blood flow in certain arteries. It was mainly adopted by cardiologists in occluding the ventricular septal defect （VSD） and atrial septal defect （ASD）.5-6 Afterwards, vascular surgeons found it could also be used in endovascular repair of aortic aneurysms, especially when the aorto-uni-iliac （AUI） stent-grafts were implanted.7 Herein we present 6 patients with AAA, who were treated with endovascular deployment of AUI stent-grafts combined with a newly- designed occluder.

关键词： aneurysm aorta, abdominal endovascular repair occluder

Silk damping in scalar-induced gravitational waves: a novel probe for new physics

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 79-85页

作者： Yan-Heng yu Sai wang Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences School of Physics University of Chinese Academy of Sciences

Silk damping is well known in the study of cosmic microwave background（CMB） and accounts for suppression of the angular power spectrum of CMB on large angular multipoles. In this article, we study the effect of Silk damping on the scalar-induced gravitational waves（SIGWs）. Resulting from the dissipation of cosmic fluid, the Silk damping notably suppresses the energydensity spectrum of SIGWs on scales comparable to a diffusion scale at the decoupling time of weakly-interacting particles. The effect offers a novel observable for probing the underlying particle interaction, especially for those mediated by heavy gauge bosons beyond the standard model of particles. We anticipate that pulsar timing arrays are sensitive to gauge bosons with mass ～10～3-10～4 GeV, while space-and ground-based interferometers to those with mass ～10～7-1012GeV, leading to essential complements to on-going and future experiments of high-energy physics.

关键词： scalar-induced gravitational waves Silk damping new physics

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科技伦理治理的三重境界

科学学研究 2023年第11期41卷 1932-1937页

作者：王国豫复旦大学哲学学院上海200433 中国科协-复旦大学科技伦理与人类未来研究院上海200433

科技伦理治理是推动科技健康可持续发展的重要举措。然而有关科技伦理治理的内涵、外延和边界的解读却仁者见仁。文章认为,科技伦理治理应该包括三重境界:一是针对科技前沿发生的违背伦理的问题的治理,即将科技伦理问题作为治理的对象;... 详细信息

科技伦理治理是推动科技健康可持续发展的重要举措。然而有关科技伦理治理的内涵、外延和边界的解读却仁者见仁。文章认为,科技伦理治理应该包括三重境界:一是针对科技前沿发生的违背伦理的问题的治理,即将科技伦理问题作为治理的对象;二是对科技进行伦理治理,伦理在这里作为规范是治理的手段和重要的工具,强调伦理的规范性和约束性;三是对科技活动的伦理的治理,即好的治理,善的治理。强调治理过程和目的必须是负责任的、符合人类福祉的,并且是可以得到道德辩护的。

关键词：科技伦理治理科技伦理治理境界