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小型地下重子数守恒实验
The Small Underground Experiment of Baryon Number Conservation
 [PDF]

, 戴长江
Modern Physics (MP) , 2011, DOI: 10.12677/mp.2011.11004
Abstract: 在标准模型中重子数是绝对守恒的。 而大统一理论则预言在原子核中的核子将衰变,重子数守恒将被破坏。 本文简要介绍研究核中核子衰变的小型地下实验。 在探测方法技术的改进方面提出了一些新的想法。
The baryon numbers are absolutely conserved in the Standard Model. However, the nucleons in nucleus will decay and baryon-number conservation may not be absolute according to the Grand unified theory. The experimental status of some small underground experiments of baryon number conservation is simply introduced in this paper. A few of improvements of experimental methods and techniques are proposed and discussed.
一类分数阶导数微分方程的隐式差分解法
An Implicit Finite Difference Scheme for Space-Time Fractional Partial Differential Equation
 [PDF]

张阳,
Operations Research and Fuzziology (ORF) , 2013, DOI: 10.12677/ORF.2013.32002
Abstract:
分数阶导数微分方程作为通常微分方程的推广,被广泛地应用于工程,物理,信息处理,金融,水文等领域。本文给出了数值求解一类时间空间分数阶导数的双边空间微分方程的一种隐式差分格式,并对其稳定性和收敛性进行了理论分析,证明了格式的无条件稳定性并给出了收敛阶估计。
Fractional order differential equations are generalizations of classical differential equations. They are widely used in the fields of diffusive transport, finance, nonlinear dynamics, signal processing and others. In this paper, an implicit finite difference method for a class of initial-boundary value space-time fractional two-sided space partial differential equations with variable coefficients on a finite domain is established. The stability and convergence order are analyzed for the resulted implicit scheme. With mathematical induction skills, the scheme is proved to be unconditionally stable and convergent.
有考虑负载不确定性的多目标最佳虚功率调度
Multi-Objective Optimal Reactive Power Dispatch with Considering Load Uncertainty
 [PDF]

, 嘉庆
Transmission and Distribution Engineering and Technology (TDET) , 2013, DOI: 10.12677/TDET.2013.24012
Abstract: 由于传统的最佳虚功率调度都是将负载需求假设为已知的固定值,以求得负载在确定状态下的最佳解,但实际的负载需求含有不确定性。为了使调度结果更适用于实际情形,本文探讨考虑负载不确定性的多目标最佳虚功率调度问题。此外,本文提出以增强型萤火虫演算法(Enhanced Firefly Algorithm, EFA)应用于此问题,增强型萤火虫演算法是将原萤火虫演算法的更新式作改良且修改参数并加入突变机制,以增强演算法的开采与搜索能力,并加快收敛速度且不易陷入局部解。另外,本文使用模糊理论建立模糊归属函数,以解决多目标不同性质及目标函数“越小越好”这种不明确语意的问题。为了验证本文所使用的方法对于考虑负载不确定性的多目标最佳虚功率调度问题的有效性,本文使用IEEE57-Bus系统作为测试系统,并与其它演算法作比较。实验结果证实本文所提出的方法确实可以获得较好的结果。
 In traditional optimal reactive power dispatch problem, the optimal solution is found under the condition that the load demands are assumed to be known and fixed, but the practical load demands have uncertainty. This paper investigates the multi-objective optimal reactive power dispatch with considering load uncertainty to make the dispatch results more suitable for real situation. In this paper, an enhanced firefly algorithm is presented to solve the problem. Enhanced firefly algorithm is based on firefly algorithm that the update formula and parameters are modified and the mutation strategy is utilized to enhance the capabilities of exploring and searching. So the proposed algorithm can converge fast and the solution can avoid trapping in local minimum. Furthermore, in order to deal with the multi-objective problem and the ambiguous linguistic expression such as “as little as possible”, the fuzzy theory is employed to establish the fuzzy membership functions. To demonstrate the effectiveness of the proposed method for solving multi-objective optimal reactive power dispatch with considering load uncertainty problem, the IEEE 57-Bus system has been applied to the reactive power dispatching and the results of the proposed method are compared with those of other algorithms. The results show that the proposed method can get better solution.
重庆市高中学生冲动性与网络成瘾相关研究
Association between Impulsivity and Internet Addiction Disorder among High School Students in Chongqing
 [PDF]

, 卫红
Advances in Psychology (AP) , 2014, DOI: 10.12677/AP.2014.43052
Abstract: 为探讨重庆市高中学生冲动性和网络成瘾的概况以及两者之间的关系,使用BIS-11量表和Young的网络成瘾量表对重庆市4186名高中学生进行了测查。结果在冲动性方面,女生显著高于男生(t = ?4.933, p < .001);在网络成瘾方面,男生显著高于女生(t = 4.916, p < .001),城市学生显著高于农村学生(t = 8.894, p < .001)。在性别、城市、冲动性高低分组上均差异显著,且家庭所在地和性别、家庭所在地和冲动性高低在对网络成瘾的影响上有交互效应。结论:冲动性各维度一定程度上对网络成瘾有预测作用
To investigate impulsivity and internet addiction disorder in high school students in Chongqing and the relationship between both, the study, of which the subjects investigated were the 4186 high school students in Chongqing, used BIS-11 and Young’s Diagnostic Questionnaire. The results turned out that in impulsivity, girls’ scores are significantly higher than boys’; there were significant differences in gender, and urban and rural areas. In internet addiction disorder, boys’ scores were significantly higher than girls’; there were significant differences in gender, urban and rural areas, high and low score in impulsivity; there were effects of interaction between family and gender, family and high and low score in impulsivity. Conclusion: Internet addiction disorder is positively predicted by impulsivity.
小麦胚乳贮藏蛋白的组成、遗传特点及其与面包品质的关系

麦类作物学报 , 1995, DOI: 10.7606/j.issn.1009-1041.1995.04.078
Abstract: 本文概述了普通小麦胚乳贮藏蛋白的组成及其与面包品质的关系,着重从各类蛋白基因的染色体定位及遗传规律、单个亚基的生化特点及其对面包品质的效应、高分子量谷蛋白亚基的组成与面包品质的关系、我国品种高分子量谷蛋白亚基的组成特点等方面作了综述,以期促进品质研究结合品质育种尽快达到品质改良的目的。
浅谈国家自然科学基金项目申请书的撰写

科技导报 , 2014,
Abstract: 国家自然科学基金(以下简称科学基金)项目申请书的撰写并没有固定的模式,好的申请书也没有固定的标准,同行评议专家也是仁者见仁,但总体上要求逻辑性、规范性、科学性的统一。科学基金项目申请书主要包括3方面内容立项依据(why)、研究内容和研究方案(how)、研究基础(who)。
如何避免申请国家自然科学基金资助项目被“初筛”

科技导报 , 2014,
Abstract: “初筛”是指在国家自然科学基金(以下简称科学基金)资助项目申请中,国家自然科学基金委员会(以下简称自然科学基金委)在接受申请书之后进行的形式审查,即按照《国家自然科学基金条例》(以下简称《条例》)和《国家自然科学基金项目指南》(以下简称《指南》),对申请人条件是否符合要求、申请书撰写是否符合规范、依托单位是否履行管理职责进行核实,来确定是否正式受理项目的申请。
丹东市2006~2011年AFP监测系统运转情况分析

中国热带医学 , 2012,
Abstract:
新型船用螺旋桨加工装置刀具位姿控制算法

哈尔滨工程大学学报 , 2014, DOI: 10.3969/j.issn.1006-7043.201305002
Abstract: 船用大型螺旋桨的尺寸较大,现有螺旋桨加工方法存在单面加工、桨叶振颤、二次装夹、加工周期长的问题。针对这些不足,提出了双刀双面对称加工方法。综合并联机构与串联机构的优点,搭建了基于混联机构的加工装置模型,可以实现螺旋桨一次装夹、双刀对称加工压力面和吸力面,有利于消除悬臂梁效应、减弱振颤、提高加工效率和加工精度。介绍了该加工装置的结构设计,对其机构运动参数进行解耦,推导出加工刀具的位姿控制算法。应用ADAMS构建的仿真模型和原型样机验证了控制算法的正确性,为后续加工装备的研发打下了理论基础。
人体美――体育美学论稿之二

天津体育学院学报 , 1989,
Abstract: 人体美是文化的结晶与成果。人体美的研究是体育美学的主要内容。人类创造了文化,文化同时也完善着人类。人体美是美学的根本与极至,人体是世界上最完美的事物之一。人体美的形式堪称自然美中的最高典范。在人类文化的领域里,体育运动被认为是一种语义符号,它是人类对生命活力审美化的理解与创造。
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