坚持技术创新 增强核心竞争力

强调“技术创新”的重要性．提出“技术创新”是提高军工研究所核心竞争力的重要因素。结合205所的实际情况，回顾了坚持技术创新所取得的成就。提出了只要继续坚持技术创新，205所必定会迎来更加辉煌的未来．     

军工科研院所发展面临的形势与对策

世纪之交，我国军事工业体制中的科研院所面临着体制、时代变化的重大转折，其在生存与发展中必须注间并应该建立的战略性对策和内部激励机制。     

对军工科研院所强化创新发展营造文化建设氛围的策略分析

本文分析了军工科研院所科技发展面临的状况，特别是如何激发军工科研所创新能力，梳理了提高全体员工工作积极性的基本思路，对如何调动全体员工做出创新性工作的基本内涵进行了系统性分析，提出了加强自身科技创新发展的几个重要解决方法。     

如何上网查阅核心期刊发表的论文

1.在浏览器的地址栏上输入＂核心期刊＂。当出现菜单后,点击＂核心期刊目录＂,再点击＂中文核心期刊要目总览（2008版）＂,即可查阅各学科的＂核心期刊＂。     

如何上网查阅核心期刊发表的论文

1．在浏览器的地址栏上输入“核心期刊”。当出现菜单后,点击“核心期刊目录”．再点击“中文核心期刊要目总览（2008版）”。即可查阅各学科的“核心期刊”。若要查阅《光谱实验室》,请查第4编：自然科学,再查“O6／O7-化学／晶体学”,第21号即是。     

如何上网查阅核心期刊发表的论文

（你的论文在发表后约两个月,上网才能检索到）1.在浏览器的地址栏上输入＂核心期刊＂。当出现菜单后,点击＂核心期刊目录＂,再点击＂中文核心期刊要目总览（2008版）＂,即可查阅各学科的＂核心期刊＂。若要查阅《光谱实验室》,请查第4编：自然科学,     

基于核心素养的物理教学初探

素质教育的概念自20世纪80年代中期提出至今已接近30年,基础教育改革又到了一个重要的历史节 点,需要我们对素质教育的诸多问题进行再认识、再实践[1] ,在此背景下,“核心素养冶 的培育成为深化新课程改革 的新目标. 探讨了基于培育物理核心素养的课堂教学设计与实施     

高考物理学科命题是如何体现核心价值的引领作用

文章结合教育部考试中心研制的《中国高考评价体系》,以近两年的高考物理试题为载体,探讨了在高考评价体系的"四层"考查内容中,核心价值的引领作用是如何在物理学科高考命题中具体体现的.     

物理学类中文核心期刊的研究

文章详细介绍了综合测定中文物理学核心期刊的研究方法，并对所测定出的中文物理学核心期刊结论做了客观的评价，以及扼要阐述了它的对物理学科的作用．     

基于中学物理核心概念的有效教学策略研究

随着国际上对核心概念的普遍关注, 核心概念教学已经成为一种趋势. 在中学物理教学中, 概念教学是 非常重要的一部分, 核心概念教学更是概念教学的重中之重.通过对基于核心概念的概念图教学策略、 探究实验教 学策略、 物理学史教学策略、 核心提问教学策略的阐述, 探求中学物理核心概念教学的有效策略, 寻找核心概念教学 与高效课堂整合的切入点, 期望对促进教师围绕核心概念组织教学有所帮助, 真正实现当前教育所提倡的有效教 学     

国外物理学核心期刊的研究及其意义

详细介绍了综合测定国外物理学核心期刊的研究方法,扼要阐述了它对物理学文献资源建设及学术交流的作用,并对所测定出的国外物理学核心期刊结论做了比较客观的评价.     

How additives of Mn improve the hydrogenation characteristics of FeTi - and the role of its subsurface

By means of Auger- and Photoelectron-Spectroscopy as well as magnetic measurements we show that additives of Mn promote surface segregation of FeTi and the thereby produced Fe particles are protected more effectively from oxidation. This explains the relative ease of activation and the lower sensitivity to impurities of the H₂ gas observed earlier by J.J. Reilly and J.R. Johnson¹. We also show experimentally that the subsurface underneath the segregated layer is capable to dissociate H₂ molecules.     

Proposal to improve the behaviour of self-energy contributions to the S-matrix

A simple modification of the definition of the S-matrix is proposed. It is expected that the divergences related to nonzero self-energies are considerably milder with the modified definition than with the usual one. This conjecture is verified in a few examples using perturbation theory. The proposed formula is written in terms of the total Hamiltonian operator and a free Hamiltonian operator and is therefore applicable in any case when these Hamiltonian operators are known.     

飞向地球核心

美国加州理工学院的DavidStevenson教授在最近提出了一项重要的建议 ,他主张进行一项向地球核心飞行的空间计划 ,他认为这是一件值得科学家们考虑的空间工程 .这个空间内填充的不是普通的真空 ,而是坚硬的岩石 ;同时它的“空间飞船”也不是通常的飞行工具 ,而是类似于葡萄柚大小的地震波探测器 .研究工作将按如下的步骤进行 :一个带有爆炸装置的探头将沿着地球表面的裂缝向下滑落并发生引爆 .然后把一个装满熔化铁水的探测器注入裂缝内 ,由于地球重力的作用 ,裂缝将以每秒 5m的速度向下延伸 ,直到其封堵为止 .这些地球内部的裂缝将会有规则…     

Strategy to improve the reproducibility of colloidal SERS

There is a pressing need to improve the reproducibility of surface enhanced Raman spectroscopy (SERS) measurements, if the technique is to be used routinely for trace analysis. This is particularly true for colloidal SERS, in which data reproducibility is dominated by the final shape and size of metal clusters produced during colloid aggregation. This study presents general guidelines for designing appropriate measurement strategies that can be used to identify and optimise crucial steps in a protocol that leads to better reproducibility of the results. We show that the data reproducibility can be improved by optimising vortexing time during colloid aggregation, which we attribute to the formation of more reproducible metal clusters under conditions of ‘forced convection’. The study also investigated the effects of different storage conditions on the data reproducibility of SERS during a 6‐month study period. Storage conditions did not significantly influence the SERS reproducibility. However, at the end of 6 months, colloids that were stored (in plastic containers) at room temperature showed a difference in their quality, as mirrored by their different opto‐physical properties. This was made apparent through the analysis of UV‐vis spectroscopy measurements by principal component analysis. Copyright © 2007 John Wiley & Sons, Ltd.     

提高棱镜制造精度的方法

应用干涉测量技术对制造棱镜时所用的光胶垫板、光胶长方体和棱镜光胶盘被加工表面与光胶垫板基准面之间的平行度进行测控,以达到提高棱镜制造精度的目的。     

Co-evolution of the brand effect and competitiveness in evolving networks

The principle that ‘the brand effect is attractive’ underlies the preferential attachment. Here we show that the brand effect is just one dimension of attractiveness. Another dimension is competitiveness. We firstly introduce a general framework that allows us to investigate the competitive aspect of real networks, instead of simply preferring popular nodes. Our model accurately describes the evolution of social and technological networks. The phenomenon that more competitive nodes become richer can help us to understand the evolution of many competitive systems in nature and society. In general,the paper provides an explicit analytical expression of degree distributions of the network. In particular, the model yields a nontrivial time evolution of nodes’ properties and the scale-free behavior with exponents depending on the microscopic parameters characterizing the competition rules. Secondly, through theoretical analyses and numerical simulations, we reveal that our model has not only the universality for the homogeneous weighted network, but also the character for the heterogeneous weighted network. Thirdly, we also develop a model based on the profit-driven mechanism. It can better describe the observed phenomenon in enterprise cooperation networks. We show that the standard preferential attachment,the growing random graph, the initial attractiveness model, the fitness model, and weighted networks can all be seen as degenerate cases of our model.     

如何发现问题

在现代的各种教学思想中，都强调如何让学生在特定的教学资源中独立发现问题．因为发现问题是学习的起点，是对已有状态进行更深入的反思，没有问题的学习，从教的角度说叫“填”．从学的角度说叫“机械记忆”．发现问题的具体方法有如下几种．     

How to cut the pomeron

We show how to make s-channel unitarity cuts through an arbitrary graph involving bare pomerons.