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Imaging plate scanners calibration and the attenuation behavior of imaging plate signals

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Chinese Physics B 2024年第6期33卷 38-44页

作者：薄楠王乃彦 College of Nuclear Science and Technology Beijing Normal UniversityBeijing 100875China China Institute of Atomic Energy Beijing 102413China

Based on previously reported work, we propose a new method for calibrating image plate(IP) scanners, offering greater flexibility and convenience, which can be extended to the calibration tasks of various scanner models. This method was applied to calibrate the sensitivity of a GE Typhoon FLA 7000 scanner. Additionally, we performed a calibration of the spontaneous signal attenuation behavior for BAS-MS, BAS-SR, and BAS-TR type IPs under the 20±1℃ environmental conditions, and observed significant signal carrier diffusion behavior in BAS-MS IP. The calibration results lay a foundation for further research on the interaction between ultra-short, ultra-intense lasers and matter.

关键词： image plate scanner ultra-short ultra-intense lasers

90年努力奋斗,铸造出我国中文学术期刊的一面旗帜

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物理学报 2023年第23期72卷 2-3页

作者：王乃彦中国原子能科学研究院北京102413

《物理学报》原名《中国物理学报》,创刊于1933年,至今已走过了90年艰难而光辉的历程.它是我国最早创刊的几种科技期刊之一,到现在,《物理学报》(以下简称“学报”)已成为我国物理学界最具有权威性的综合性中文学术期刊之一,发表文章的... 详细信息

《物理学报》原名《中国物理学报》,创刊于1933年,至今已走过了90年艰难而光辉的历程.它是我国最早创刊的几种科技期刊之一,到现在,《物理学报》(以下简称“学报”)已成为我国物理学界最具有权威性的综合性中文学术期刊之一,发表文章的内容涵盖物理学各个学科及其交叉学科.

关键词：中文学术期刊交叉学科《物理学报》物理学报科技期刊物理学界努力奋斗权威性

基于蒙特卡罗方法的nai探测器效率刻度及其测量轫致辐射实验

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物理学报 2014年第18期63卷 160-166页

作者：黄建微王乃彦北京师范大学核科学与技术学院北京100875 中国原子能科学研究院北京102413 北京师范大学射线束与材料改性教育部重点实验室北京100875 北京市辐射中心北京100875

为了将nai探测器更好地应用到轫致辐射谱测量工作中,对一套nai探测器做了研究:利用^(137)Cs,^(60)Co等同位素γ源,结合蒙特卡罗方法,得到全能峰效率的模拟值与实验测量值符合得较好;利用蒙特卡罗N粒子编码模拟nai对不同能量光子的响应,... 详细信息

为了将nai探测器更好地应用到轫致辐射谱测量工作中,对一套nai探测器做了研究:利用^(137)Cs,^(60)Co等同位素γ源,结合蒙特卡罗方法,得到全能峰效率的模拟值与实验测量值符合得较好;利用蒙特卡罗N粒子编码模拟nai对不同能量光子的响应,得到了该探测器对光子的能量响应,并将获得的能量响应用于轫致辐射的解谱工作,解谱结果与原始谱符合得很好;将该探测器应用到强流电子束打靶轫致辐射测量实验中,对轫致辐射在nai探测器中的响应做了初步测量.

关键词：效率刻度碘化钠谱仪蒙特卡罗N粒子编码能量响应矩阵

The Perturbed Compound Poisson Risk Model with Proportional Investment

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Acta Mathematicae Applicatae Sinica 2024年第1期40卷 109-128页

作者： nai-dan Deng Chun-wei wang Jia-en Xu School of Mathematics and Statistics Henan University of Science and TechnologyLuoyang471023China

In this paper, the insurance company considers venture capital and risk-free investment in a constant proportion. The surplus process is perturbed by diffusion. At first, the integro-differential equations satisfied by the expected discounted dividend payments and the Gerber-Shiu function are derived. Then, the approximate solutions of the integro-differential equations are obtained through the sinc method. Finally, the numerical examples are given when the claim sizes follow different distributions. Furthermore, the errors between the explicit solution and the numerical solution are discussed in a special case.

关键词： expected discounted dividend payments lognormal distribution proportional investment perturbed risk model sinc numerical method

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微粉石墨在燃烧型抗红外烟幕中的应用

含能材料 2008年第5期16卷 592-594页

作者：霸书红王乃岩沈阳理工大学装备工程学院辽宁沈阳110168 南京理工大学化工学院江苏南京210094

研究了微粉石墨红外消光性能及其在燃烧型抗红外烟幕中的应用。结果表明:微粉石墨在不产生凝聚的条件下,粒径越小,其红外消光效果越好。石墨作为成烟物质用于燃烧型抗红外烟幕时,存在燃烧损失,在相同烟幕剂配方中,石墨添加量从20%降至5%... 详细信息

研究了微粉石墨红外消光性能及其在燃烧型抗红外烟幕中的应用。结果表明:微粉石墨在不产生凝聚的条件下,粒径越小,其红外消光效果越好。石墨作为成烟物质用于燃烧型抗红外烟幕时,存在燃烧损失,在相同烟幕剂配方中,石墨添加量从20%降至5%,用有机物B做可燃物时,石墨燃烧损失从31.6%增至57.6%;用金属C做可燃物时,石墨燃烧损失从44.6%增至80.5%。为提高石墨利用率,在氧化剂A、有机可燃物B和20%微粉石墨组成的抗红外烟幕剂配方中,加入5%市售炭黑,同原配方相比,炭黑的加入能够有效抑制石墨燃烧和提高烟幕中石墨的红外消光能力。

关键词：军事化学与烟火技术抗红外烟幕石墨燃烧红外消光炭黑

Mechanistic insights into the processes of the initial stage of electrolyte degradation in lithium metal batteries

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Chinese Chemical Letters 2024年第3期35卷 473-478页

作者： Yao wang Juncheng wang Jianwei nai Jianmin Luo Xinyong Tao Yujing Liu College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China Moganshan Research Institute at Deqing County Zhejiang University of Technology Huzhou 313000China

The lithium(Li)metal batteries(LMBs)are considered one of the most promising next-generation batteries due to its extremely high theoretical specific ***,there are a couple of issues,e.g.,the serious side reactions that occurred at the solid-liquid interface between the electrolyte and Li metal anode,hindering the broad commercialization of ***,a comprehensive understanding of the mechanisms underlying the decomposition of electrolytes is crucial to the design of ***,we utilize density functional theory simulations to explore the decomposition mechanism of *** most commonly used ether electrolyte solvents,i.e.,1,2-dimethoxyethane(DME)and 1,3-dioxalane(DOL),based on suitable lithium salts,namely bis(trifluoromethanesulfonyl)imide(LiTFSI),are chosen to model the actual *** explicitly demonstrate that an electron-rich environment near the interface accelerates the decomposition of *** ether electrolytes,we show that the LiTFSI degradation path is depending on the ratio of DOL to *** addition,the solvation structures of lithium-ion undergo a series of transformations upon electrolyte degradation,becoming thermodynamically more favorable and having a higher reduction potential in an electron-rich *** finding provides new insights into the decomposition mechanisms of electrolytes and paves the way for the rational design of high-performance LMBs.

关键词： Li metal battery Electrolyte Solvation structures Interface Density functional theory

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激光核物理

物理 2008年第9期37卷 621-624页

作者：王乃彦中国原子能科学研究院北京102413

在最近十年,激光技术有了长足的进展,激光的强度超过了1022W/cm^2,激光的电场达到-4×10^12V/cm.当这种高强度的激光照射在靶上时,可以产生许多由激光产生的核反应现象.在这篇文章中,作者回顾了这一领域的研究进展,并对在不远的未来激... 详细信息

在最近十年,激光技术有了长足的进展,激光的强度超过了1022W/cm^2,激光的电场达到-4×10^12V/cm.当这种高强度的激光照射在靶上时,可以产生许多由激光产生的核反应现象.在这篇文章中,作者回顾了这一领域的研究进展,并对在不远的未来激光产生电子、质子、中子、X射线和正电子发展的潜力进行了一些讨论.

关键词：啁啾脉冲放大粒子云正电子发射层析术库仑爆炸

Research on Modeling and Parameter Identification of Comprehensive Load Model of Distribution Network in Industrial Park

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Chinese Journal of Electronics 2024年第1期33卷 264-273页

作者： Tingling wang Xiaohe yan School of Electric Engineering North China University of Water Resources and Electric Power Wenzhou Polytechnic

With the rapid development of industrial parks, its load model research has become a hot spot. In order to study the load of power system in industrial park, based on the characteristics of the industrial park load, a comprehensive load admittance static model with full voltage range adaptability is considered, and a comprehensive load model of distribution network of the industrial park is established. A complete parameter identification of the model is carried out through chaos particle swarm optimization. The simulation results show that the model can effectively describe the load characteristics of the distribution network in industrial parks.

关键词： Chaos Adaptation models Analytical models Parameter estimation Induction motors Simulation Distribution networks

Topology Optimization of Two Fluid Heat Transfer Problems for Heat Exchanger Design

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Computer Modeling in Engineering & Sciences 2024年第8期140卷 1949-1974页

作者： Kun yan Yunyu wang Jun yan School of Chemical Engineering Dalian University of TechnologyDalian116024China Jianghuai Advanced Technology Center Hefei230000China State Key Laboratory of Structural Analysis for Industrial Equipment Department of Engineering MechanicsInternational Research Center for Computational MechanicsDalian University of TechnologyDalian116024China

Topology optimization of thermal-fluid coupling problems has received widespread *** article proposes a novel topology optimization method for laminar two-fluid heat exchanger *** proposed method utilizes an artificial density field to create two permeability interpolation functions that exhibit opposing trends,ensuring separation between the two fluid ***,a Gaussian function is employed to construct an interpolation function for the thermal conductivity ***,a computational program has been developed on the OpenFOAM platform for the topology optimization of two-fluid heat *** program leverages parallel computing,significantly reducing the time required for the topology optimization *** enhance computational speed and reduce the number of constraint conditions,we replaced the conventional pressure drop constraint condition in the optimization problem with a pressure inlet/outlet boundary *** 3D optimization results demonstrate the characteristic features of a surface structure,providing valuable guidance for designing heat exchangers that achieve high heat exchange efficiency while minimizing excessive pressure *** the same time,a new structure appears in large-scale topology optimization,which proves the effectiveness and stability of the topology optimization program written in this paper in large-scale calculation.

关键词： Topology optimization two fluid heat exchanger OpenFOAM large scale