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A Neo Explanation of the"Mass-Velocity Relation

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Journal of Systems Engineering and Electronics 1994年第2期5卷 68-71页

作者： xu shaozhi and xu Xiangqun (Beijing Control Device Research Institute, P.O. Box 3913, Beijing 100854, P.R. China) Beijing Control Device Research Institute P.O. Box 3913 Beijing 100854 P.R. China

A reinterpretation of the well-known formula of the 'mass-velocity relation' is exactlyderived from a new viewpoint with new concepts, such as the finiteness of the transmitting velocityof force (TVF), effective action, and the coupled effect of the TVF for two EM fields, etc. Then, atrue meaning hidden in the Lorentz factor is exploited : i.e., when a charged particle is moving at aspeed v under an EM field, the effective action exerted on it by the field varies inversely with thespeed ratio β= v / U, where U is the TVF, which probably is equal to the propagation velocity ofEM field. The actual reduction of the effective action gives a false impression of mass ***, it is a major mistake in orientation to ascribe the (genuine) electrodynamics of movingbodies to any observation, or to any motion of an observer, while disregarding the facts of mutualaction.

关键词： Relativity Electrodynamics of moving bodies Mass-velocity relation, Lorentz factor Transmitting velocity of force, Effective action Coupled effect.

Development of an automatic calibration device for high-accuracy low temperature thermometers

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Science China(Technological Sciences) 2010年第9期53卷 2404-2407页

作者： CHEN GuangMing,GAO xu,ZHANG shaozhi,CHEN Qi,TANG LiMing & LAN YuQi Institute of Refrigeration and Cryogenics,Zhejiang University,Hangzhou 310027,China Institute of Refrigeration and Cryogenics Zhejiang University Hangzhou China

Based on the analysis and investigation of calibration systems for high-accuracy low temperature thermometers,a new facility for automatic calibration of high-accuracy low temperature thermometers was *** calibration for multiple points can be made automatically with this *** to the thermophysical characteristics of the constant-temperature block in this device,segmented Fuzzy-PID (proportional-integral-differential) algorithm was *** experimental results showed that the temperature fluctuation was smaller than ±0.005 K in 30 ***,this new device can fully meet the calibration requirement of high-precision low temperature thermometers.

关键词： calibration low temperature thermometer control algorithm

Low-temperature Synthesis of Large-area Films of Molybdenum Trioxide Microbelts in Air and the Dependence of Their Field Emission Performance on Growth Conditions

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Journal of Materials Science & Technology 2010年第7期26卷 584-588页

作者： Dongmei Ban,Ningsheng xu,shaozhi Deng,Jun Chen and Juncong She State Key Lab of Optoelectronic Materials and Technologies,Guangdong Province Key Laboratory of Display Material and Technology,School of Physics and Engineering,Sun Yat-sen University,Guangzhou 510275,China State Key Lab of Optoelectronic Materials and Technologies Guangdong Province Key Laboratory of Display Material and Technology School of Physics and Engineering Sun Yat-sen University Guangzhou 510275 China

A simple method is introduced for the preparation of large-area films of molybdenum trioxide （MoO3） microbelts. It is found that such films can be grown on indium tin oxide （ITO） glasses or silicon substrates at low temperatures by thermal evaporation deposition in air without using catalyst. Field emission measurements show that the turn-on field of the MoO3 microbelts is as low as 2.2 V/μm required to obtain a current density of 10 μA/cm^2, The combination of the simplicity of the growth method and the attractive field emission performance makes it a potential low-cost technique for the preparation of large-area field emission cold cathode material.

关键词： Field emission Large-area film Molybdenum trioxide Microstructures and synthesis

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相对论的数学基础是错的

发明与革新 2001年第1期 32-33页

作者：许少知

本刊第9-10期中讨论了相对论(指狭义的，下同)的核心概念“同时性的相对性”，原来它是在谬误的马赫主义或其流派指引下，转移前提、偷换概念而炮制出来的一个伪命题。本文要考虑的则是相对论的数学基础，揭露、剖析它的致命错误。说到... 详细信息

本刊第9-10期中讨论了相对论(指狭义的，下同)的核心概念“同时性的相对性”，原来它是在谬误的马赫主义或其流派指引下，转移前提、偷换概念而炮制出来的一个伪命题。本文要考虑的则是相对论的数学基础，揭露、剖析它的致命错误。说到数学，少数读者兴许会生厌甚或“发怵”。然而，现代科学理论大都厚装重裹以数学，因此即便一名业余科学爱好者也必要掌握一些必备的数学知识，方能坚实漫步于现代科学园地。其实数学颇有点象“鬼”，你怕它就追、你攻它就退。

关键词：相对论数学基础洛仑兹变换相对论性公式

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单极磁感应现象

发明与创新(大科技) 2001年第6期 36-37页

作者：许少知

所谓的单极磁感应是一种特殊情况下的电磁现象，最初由法拉第(1832)发现，肯纳德和缪勒系统地重做了实验。它看似简单却内涵深刻，是一块试金石，各种似是而非的理论都会在它面前现出原形。这一现象虽在特殊条件下出现，但对进一步弄清... 详细信息

所谓的单极磁感应是一种特殊情况下的电磁现象，最初由法拉第(1832)发现，肯纳德和缪勒系统地重做了实验。它看似简单却内涵深刻，是一块试金石，各种似是而非的理论都会在它面前现出原形。这一现象虽在特殊条件下出现，但对进一步弄清电磁作用的原理、机制乃至物质的微观结构却有着普遍的意义，实验结果向麦克斯韦-法拉第电磁理论径直提出了严峻的挑战。因此，了解、弄清这一现象有着十分重要的意义。

关键词：磁感应电磁理论闭合回路流螺法拉第单极

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虫口消长路线图与稻飞虱发生面积预测

中国植保导刊 2012年第4期32卷 35-38页

作者：袁鸣李山桂徐绍智陈斌四川省宜宾市植保植检站四川宜宾644000 四川省兴文县植保植检站四川兴文644400 四川省珙县植保植检站四川珙县644501 四川高县植保植检站四川高县645150

以稻飞虱多年发生面积的时间序列数据为依据,应用虫口模型蕴藏的虫口消长路线图进行分析,创建了稻飞虱发生面积预测值速查表,得到了稻飞虱发生面积发展变化的规律,提出并实证了预测值速查表可作为实用有效的预测工具。

关键词：稻飞虱虫口消长路线图发生面积预测

A Dual-polarized Frequency Selective Rasorber with a Tunable Transparent Band

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电讯技术 2024年第10期64卷 1569-1575页

作者： SHI Tongtong ZHANG Xiaofa WU Weiwei WANG shaozhi xu Yixuan YAN Yuchen YAN Xiao State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System National University of Defense TechnologyChangsha 410073China

A tunable dual polarization absorption-transmission-absorption(A-T-A)frequency selective absorbers(FSR)to address the issue of high insertion loss in current tunable FSRs is *** lumped resistors are loaded onto the lossy layer to absorb electromagnetic waves within the absorption *** varactor diodes are loaded onto another lossless layer to control the transmission frequency band of the *** equivalent circuit model is *** proposed tunable FSR can change the passband within the range of 14.5~15.5 GHz by changing the bias voltage applied to the lossless transmission layer,while maintaining insertion loss above-1.67 *** series resonant structure of the lossy layer generates bilateral absorption bands between 10.2~13.5 GHz and 17.2~22 GHz,with broadband reflection suppression ranging from 10.3 GHz to 22 GHz(70.7%).The prototype is manufactured,and the measured results have verified the simulation results.

关键词： tunable frequency selective rasorber dual-polarization RCS reduction stealthy radomes

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核电站应急柴油机调速系统变速试验改进研究

仪器仪表用户 2015年第3期22卷 1-1,2-3页

作者：梅亮亮许少志刘玉秋中广核核电运营有限公司广东深圳518028 大连理工大学辽宁大连116024 中科华核电技术研究院北京分院北京100086

应急柴油发电机组设备的可靠性和稳定性直接关系到核电站的安全,怠速试验和变速试验是提高柴油机可靠性的重要方法。大亚湾核电站传统速度调节方式无法满足两台机组同步稳定的速度控制,本文设计一种程控调速装置,对柴油机调速方法进行... 详细信息

应急柴油发电机组设备的可靠性和稳定性直接关系到核电站的安全,怠速试验和变速试验是提高柴油机可靠性的重要方法。大亚湾核电站传统速度调节方式无法满足两台机组同步稳定的速度控制,本文设计一种程控调速装置,对柴油机调速方法进行改进。解决目前频繁的怠速、变速磨合试验需要,可以精确控制柴油机的转速2rpm的变化。

关键词：应急柴油机调速同步控制

Numerical Evaluation of Residual Water Content after Freezing during the Lyophilization of Platelets

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Fluid Dynamics & Materials Processing 2020年第6期16卷 112-124页

作者： shaozhi Zhang Ruoyi Xie Mengjie xu Guangming Chen Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province Institute of Refrigeration and CryogenicsZhejiang UniversityHangzhou310027China

Pre-freezing is an important stage in freeze-drying *** the lyophilization of a cell,freezing not only plays a role for primary dehydration,but it also determines the amount of residual(intracellular or extracellular)water,which in turn can influence the solution properties and the choice of operation *** freezing of human platelets in lyoprotectant solution is theoretically investigated here.A two-parameter model and an Arrhenius expression are used to describe cell membrane permeability and its temperature *** is assumed that the intracellular solution is composed of four components:sodium chloride,trehalose,serum protein and water,while the extracellular solution consists of three ***-ideal solution behaviors are predicted using measured *** concentration of maximally freeze-concentrated solution is estimated on the basis of an assumption of solute *** impacts of lyoprotectant composition and extracellular sub-cooling on intracellular supercooling and residual water content in the cell are *** values of activation energy of hydraulic permeability at low temperatures are tested to study their impact on the critical cooling *** the mass fraction extracellular lyoprotectant(trehalose+bovineserum albumin)increases from 5 wt%to 20 wt%,the intracellular water content at the end of freezing does not change,but the intracellular solution undergoes much higher super-cooling *** the mass ratio of trehalose to bovine serum albumin does not change the intracellular water content,but can mitigate intracellular *** 0.05 mol/kg trehalose is loaded into platelet,the total quantity of residual water at the end of freezing may raise by 4.93%.The inclusion of dimethyl sulfoxide(Me2SO)in protectant may bring negative impacts to the drying stage by increasing the residual water content and lowering the drying temperature.

关键词： Lyophilization human platelets freezing numerical simulation