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物流量的内涵分析和计算方法
The Connotation Analysis and Calculation of Logistics Volume
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Business and Globalization (BGlo) , 2014, DOI: 10.12677/BGlo.2014.22005
Abstract:

物流量作为物流学科中的一个重要概念,对于区域物流总量预测、物流规模的核定和物流战略的制定都具有重要意义。但现在国内对于物流量的定义和计算方法都没有一个统一认定,造成了概念混淆不清,给实践带来了困难。本文通过对物流量的概念进行合理界定,对其内涵进行深入分析,认为物流量是物流作业量的总和,但不是作业量的简单叠加,而应当是一个多维向量组,向量组的模代表了物流规模,向量组的取值代表了物流结构。在此基础上得到物流量的计算一般公式,再综合考虑到实际计算的难点给出简化的计算方法,以期在物流量的理论研究中做出有益的探索。
As an important concept in the logistics disciplines, Logistics Volume is significant to the forecast of regional logistics quantity, the ratification of the logistics scale and the constitution of logistics strategy. In previous research, there was no unified definition and calculation method of logistics volume, which brought obscures to the conception and difficulties in practice. This paper gave reasonable definition to logistics volume, and made deep analysis of its connotation, considering logistics volume as the summation of the quantity of logistics operation, but not the simple superposition of the operation quantity. Logistics volume was defined as a multidimensional vector group, and the module of the vector group stands for the logistics scale while the value stands for logistics structure. On the base of these definitions, a general formula for the calculation of logistics volume was obtained, and a simplified calculation method was further derived upon reasonable deletion of complications in actual computations. The purpose of this research is to carry out useful explorations and to obtain helpful results and conclusions in the theoretical research of Logistics Volume.

海产品质量安全快速检测方法研究进展
Advance of Research on Rapid Determination Method of Seafood Quality and Safety
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Open Journal of Fisheries Research (OJFR) , 2014, DOI: 10.12677/OJFR.2014.13008
Abstract:
本文综述了海产品质量快速检测技术,包括:快速前处理技术、化学速测法、酶抑制速测法、免疫速测法、传感器法、分子生物学方法及色谱–质谱联用仪等,探讨了海产品快速检测的发展趋势。
This paper summarized the rapid detection techniques of seafood, including rapid pre-treatment technology, chemical-speed measurement, enzyme inhibition, enzyme-linked immunoassay, sensor, molecular biology and chromatography-mass spectrometry etc. The trends of rapid determination technologies of seafood were discussed here.
特殊天气大学生体育课和健康体能锻炼方法研究
The Physical Activity Exercise Research of College Students Body Health in Fog and Haze Weather
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Advances in Physical Sciences (APS) , 2016, DOI: 10.12677/APS.2016.42008
Abstract:
2013年以来,雾霾天气的多发造成了对人体健康的诸多危害。该研究提出一套雾霾天气室内健康体能锻炼方法(多种徒手练习动作和器械练习动作),对方法的特点、分类、锻炼原则和作用进行了全面分析了。通过这些体能锻炼不仅可以防止雾霾天气PM2.5对人体的危害,还可以提高健康体能、增强大学生身体协调性、减少运动损伤。
The fog and haze weather has caused a lot of harm to human body health since 2013. The study puts forward a set of indoor health fitness exercises in fog and haze weather (include a variety of unarmed practice actions and instrument practice actions), and conducted a comprehensive analysis of the methods’ characteristics, classification, principles and functions. These physical exercises can prevent the PM2.5’ harm of fog and haze weather to human body, improve the health fitness, enhance students’ physical coordination and reduce sports injuries.
普通高校体育课健康体能系统教学模式研究
The Research of Healthy Fitness Systematic Teaching Model of PE in Universities
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Advances in Physical Sciences (APS) , 2016, DOI: 10.12677/APS.2016.43011
Abstract:
本文从系统观和科学发展观出发,运用文献资料法、专家访谈法、逻辑分析法、对比研究法建立了健康体能系统教学模式。它将体育课、课外体育活动和健康体能测试综合考虑,系统安排大学四个年级体育课内容并使其形成有效衔接(将健康体能设置为大学一年级体育课教学内容),采用“综合式”教学方法,建立系统的考核与评价机制,从而为有效提高大学生健康体能和体育课教改提供理论参考。建议普通高校领导重视体育工作并设置体育工作机构、鼓励体育教师“充电”,建议在当前大学生急需提高健康体能情况下采用该教学模式。
The article starting from the systematic view and the scientific development concept, established the healthy fitness systematic teaching mode with the method of documentary, expert interview, logical analysis and comparative study method. The mode achieved the comprehensive consideration with PE, extracurricular sports activities and healthy fitness test, systematic arranged university four grades PE class’ teaching contents for an effective cohesion especially set the healthy fitness contents to freshmen, using the “comprehensive type” teaching method and established a systematic assessment and evaluation mechanism to effectively improve university students' healthy fitness and provide theoretical reference to PE teaching reform. The paper suggests that university leaders attach great importance to sports work and set up the working organs, and encourage PE teachers to “charge” and to use the teaching mode under the situation where university students urgently need to improve healthy fitness.
抗滑桩支挡工程在重庆市三峡库区某滑坡治理工程的应用
Anti-Sliding Piles Supporting Engineering Applications in a Landslide in Three Gorges Reservoir of Chongqing
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吴绍
Hans Journal of Civil Engineering (HJCE) , 2013, DOI: 10.12677/HJCE.2013.21013
Abstract:
以重庆市三峡库区仁沱滑坡治理工程为例,论述了滑坡的基本特征、成因,对滑坡的稳定性进行了分析评价,在此基础上提出了滑坡治理的工程设计方案。通过工程实例分析表明,抗滑桩支挡工程在滑坡治理工程中经济、安全、合理,能够满足设计要求,工程效果良好,经济效益和社会效益显著,为三峡库区地质灾害防治提供了经验。
In the city of Chongqing in the Three Gorges Reservoir Rentuo landslide treatment engineering as an exam- ple, discusses the basic features, genesis of landslide, to evaluate and analyze the stability of landslide, on the basis of the proposed design scheme of landslide treatment engineering. Through the project example analysis shows that, the anti-slide pile retaining structure in landslide control projects of economic, security, reasonable, can meet the design requirements, the project has good effect, obvious economic benefit and social benefit, provide the experience for the prevention and control of geological disasters in Three Gorges Reservoir area.
基于遗传算法优选参数的灰色LS-SVM预测
Grey LS-SVM Forecasting with Parameter Optimized by Genetic Algorithm
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周德
Operations Research and Fuzziology (ORF) , 2011, DOI: 10.12677/orf.2011.12006
Abstract:
利用灰色预测方法中累加生成运算形成累加数据,将累加数据作为训练样本构造灰色LS-SVM,并利用遗传算法对灰色LS-SVM自身的参数进行优选,然后将基于遗传算法优选参数的灰色LS-SVM用于小样本预测。选取了典型例子进行验证,并与传统GM(1, 1)和LS-SVM方法进行对比。结果表明本文所提出的方法预测效果良好,且预测模型具有更好的泛化能力。
This paper utilized the accumulation generation operation of grey prediction to produce accumulated data, and accumulated data were used to construct grey LS-SVM. At the same time the parameters for LS-SVM were pretreated through genetic algorithms to get the optimum parameter values, then the optimized LS-SVM based on genetic algorithms was used to small samples forecasting. A typical example was taken to be analyzed and compared with GM (1, 1) and LS-SVM method. The result shows that the method forecast effect is better, and the prediction model has better generalization ability.
估计GM(1,1)模型中参数的LS-SVM方法及其在负荷预测中的应用
Estimation of GM(1,1) Model Parameter Based on LS-SVM Algorithm and Application in Load Forecasting
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周德
Modern Management (MM) , 2012, DOI: 10.12677/mm.2012.21009
Abstract: 为克服利用传统最小二乘法估计GM(1,1)模型参数的缺陷,改善GM(1,1)模型在中长期负荷预测中的精度,提出了基于LS-SVM算法估计GM(1,1)模型中参数的方法。该方法根据GM(1,1)灰色差分方程的特点,构造以背景值序列和原始序列为训练样本的灰色LS-SVM,将GM(1,1)模型参数的估计问题转化为灰色LS-SVM的参数估计问题,依据LS-SVM算法求得灰色LS-SVM的参数,进而得到GM(1,1)模型的参数估计。利用本文方法估计GM(1,1)模型的参数,方法上遵循了结构风险最小化原则,算法实现上具有速度快,稳健性强的优点,适合GM(1,1)小样本建模的特点。将本文方法应用于中长期负荷预测,通过与传统的GM(1,1)模型预测效果的对比分析,验证了该模型的有效性和优越性。
In order to overcome the defects of traditional parameters estimation method in GM(1,1) model by means of least square procedure and enhance the forecasting accuracy of GM(1,1) in medium and long-term load forecasting precision, an improvement GM(1,1) model based on LS-SVM algorithm is presented. This method constructs the grey LS-SVM with background value and raw data series as the training sample ac-cording to the character of grey difference equation, converts the GM(1,1) model parameter estimation prob-lem into a grey LS-SVM parameter estimation problem, then the regression parameters in the grey LS-SVM are solved based on the LS-SVM algorithm and the GM(1,1) model parameters estimation are also obtained. Using this method in this paper to estimate the GM(1,1) model, the method follows structural risk minimiza-tion principles, algorithm has the advantage of fast speed, strong robustness, suitable for GM(1,1) model of small samples. This method is applied to long-term load forecasting, compared with forecasting effect analy-sis of traditional GM(1,1) model to prove the validity and the superiority of the model.
先前知识对推理学习的影响
How Prior Knowledge Affects Category Learning
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, 车敬上
Advances in Psychology (AP) , 2011, DOI: 10.12677/ap.2011.12010
Abstract: 采用眼动方法研究了先前知识对推理学习的影响。实验采用单因素被试内设计,考察了被试在推理学习过程中对知识相关维度和无关维度的注视情况。结果表明被试对相关维度的注意多于无关维度,并且这种倾向在实验一开始就出现了,说明先前知识能够促进对知识相关维度的学习。
The paper studied how prior knowledge affects the inferenc learning by eyetracking. Using one-way within-subjects design, the experiment examined subjects’ fixations on knowledge-related demensions and knowledge-unrelated ones. The results showed that subjects allocated more attention to knowledgerelated demensions than knowledge-unrelated ones, and the tendency appeard in the beginning. This showed that prior knowledge can promote the learning of knowledge-related demensions.
河北省土地资源可持续发展对策研究
Research on the Sustainable Development of Land Resources in Hebei Province
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孙育
Journal of Low Carbon Economy (JLCE) , 2013, DOI: 10.12677/JLCE.2013.22013
Abstract:
近些年,伴随着经济社的高速发展,人口膨胀、资源耗竭、环境污染、生态退化等问题日益凸现,进而使得有限的土地供应和无限的土地需求之间的矛盾更加突出。本文在分析河北省土地资源利用现状过程中,找出了制约土地资源可持续利用的制约因素,并有针对性的从土地资源的开源、节流和保质的角度提出了可持续利用的对策建议。
With the rapid development of economy in Hebei province, the contradiction between plow land and human is intensifying. Based on the analysis of land resources use in Hebeiprovince, we find out the factors that restrict the sustainable using of land resources. And then, we put forward the countermeasures of sustainable utilization of land resources.
动三轴试验过程的误差分析
Error Analysis of Dynamic Triaxial Test Process
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黄文
Hans Journal of Civil Engineering (HJCE) , 2013, DOI: 10.12677/HJCE.2013.22017
Abstract:
动三轴试验是室内土工试验中研究土体动力特性的重要方法,但从试验结果来看具有一定的离散性。这既有试验操作者的人为误差,也有动三轴仪系统本身带来一定误差,如试样制备过程中的误差,系统本身的阻尼力,试验数据的滞后性等等。为了更好地改进和利用动三轴试验研究土体动力特性并解决相关实际问题,有必要对动三轴试验全过程的误差进行分析,提高动三轴试验的准确度。
Among indoor soil tests, dynamic triaxial test is an important method in the study of dynamic properties of soil but with certain discrete in test results. Both the test operator and dynamic triaxial system itself bring some errors, such as errors in the sample preparation process, the damping force of the system, the lag of the test data, and so on. In order to improve and use dynamic triaxial test better for soil dynamic characteristics and solving practical problems, it is necessary to analyse errors in the whole process of dynamic triaxial test and improve the accuracy of dynamic triaxial test.
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