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Search Results: 1 - 10 of 32874 matches for " 洪? "
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Van der Corput不等式的进一步改进
Further Improvement of Van der Corput’s Inequality
 [PDF]

,
Pure Mathematics (PM) , 2013, DOI: 10.12677/PM.2013.31003
Abstract: 本文首先改进对Euler常数的估计式,在胡克已改进的Van der Corput不等式的基础上进一步改进Van der Corput不等式,得到\"\"其中r Euler常数\"\",\"\"
On the basis of Hu Kes result, by reforming the estimate inequality of Euler constant, the improved Van der Corputs inequality is obtained. Our result is:

\"\"

where r is Euler constant,\"\" , \"\".
改?取粉管接手

地质与勘探 , 1957,
Abstract: 目前在原材料的来源上仍存在供不?求的现象,特?是???品。?保?工作的正常?行,??充分利用?料改?成品,解?原材料供?不足的困?。本刊????介?一些有??品改?和利用代用品的短文,供?考。???明,这些短文所介?的内容,?然在工?要求上?新?品有所差?,但??使用效果却基本相同。因此各地在?行时,??合现埸??情况?行必要的改?。你?在这方面有什?好的??和作法,?及??给我?,以便?泛交流推?。
立轴?管加套

地质与勘探 , 1957,
Abstract: 立??管外?与?套??,?常冲?,磨耗很大,在备件不足的情?下,可以利用加厚?管的?法,??使用。?是我?黄振兴同志提出的建?,?一年?生??用是可行的,改?方法如附?所示。将?管加套部份?光,外??少。再将?套加厚?小,使??与?光後的?管外?相符合,再将?套
??接手红包

地质与勘探 , 1957,
Abstract: ?探工作中使用的φ65卡槽接手,???期工作以後,外?一般都磨耗至52~58公厘了,??再在深井中工作,很容易拆?。在目前?材缺乏,供应困?的情?下,我??春泉同志,提出利用“?包”的?法?加厚卡槽接手,???用效果很好。其具?作法是:????接手,加?墩?,?孔?小成?之1所示的形?;其次将??粒??,加?剖?切成200×60×8公厘的?板(切?的尺寸可按墩?的接手的大小??定),??可?图中2所示的?板(共???),包在图中1的?端外部,因而原接手?端稍
论当前国内外通用地质趋势分析法根本出发点之错误及解决途径的探讨

地质与勘探 , 1981,
Abstract: 随着生产和科学技术的发展,在各门相邻学科之间结合形成新的边缘学科是极其自然的.长期处于定性描述性的传统地质学及其分支,也已开始了与其他基础学科的结合进程,地球化学就是这一进程的产物之一.地球化学,是研究元素在广义地质体中分布、分配,集中、分散,共生、组合,迁移、演化等规律的一门边缘学科,而化探(或叫勘查地球化学)则是在地球化学的理论基础指导下,将上述规律运用于找矿目的的一门应用学科.从量变到质变是物质运动的普遍法则.没有数量概念的质的描述,是无法准确地把握客观规律并利用其为人类谋福利的.马克
一类变系数组合KdV方程新的精确解析解
New Exact Analytic Solutions to a Coupled KdV Equation with Variable Coefficients
 [PDF]

宝剑
Pure Mathematics (PM) , 2011, DOI: 10.12677/pm.2011.12032
Abstract:
在齐次平衡法和分离变量的基础上,通过两个推广的Riccati方程,借助Mathematica软件,求出了一类变系数组合KdV方程的一些精确解析解,包括各种类孤立子解、类周期解和变速孤立波解,部分解为首次发现。
Based on the homogeneous balance principle and general variable separation approach, with the aid of two generalized Riccati equations and Mathematica software, we first find some exact analytic solutions to a coupled KdV equation with variable coefficients, including several kinds of soliton-like solutions, periodical-like solutions and solitary wave solutions with variable speed. Some of them are found for the first time.
苹果产品设计美学解读
Interpretation of the Design Aesthetics in Apple Products
 [PDF]


Art Research Letters (ARL) , 2013, DOI: 10.12677/ARL.2013.21002
Abstract:
设计美学作为设计领域的一个重要组成部分,对产品设计起着举足轻重的影响。当苹果公司产品风靡全球的时候,其产品当中全新的设计创意带给这个时代一种新的理念,设计文化与技术形态结合使得苹果产品有了完美的体现。通过解读苹果产品的设计美学,发掘世界一流产品设计公司的产品设计特点,从而给中国产品设计市场带来启发与参考。
The field of design aesthetics, as an important part of the product design, plays a decisive role. When the Company APPLE is sweeping the whole world and the products bringing brand new design ideal, meanwhile the fanatic integration between the culture of design and the shape of technique ultimate brings APPLE products perfect performance. Through the interpretation of apple products design aesthetics, and explore the first-class product design features, so that will definitely give Chinese products more design ideals and references.
SPSS中集成R的统计方法
Integrating R Methods into SPSS
 [PDF]


Statistics and Applications (SA) , 2012, DOI: 10.12677/SA.2012.12006
Abstract:

本文介绍了如何在SPSS版本17中集成R中的作图和统计方法。介绍了在SPSS中调用R的统计方,在SPSS中以数轴表的形式输出R的分析结果,在SPSS中输出R的图形,以及如何在R中调用SPSS统计分析的结果。并给出了各种方法的示例。

The paper introduces how to integrate the statistical methods and graphical methods of R into SPSS Version 17. It illustrates the procedures of calling the statistical methods of R, presenting the graphics of R, presenting the output of R in SPSS pivot tables. The way of calling the output of SPSS statistical procedures is introduced as well. The examples of the above procedures are given at the same time.

 

四十年台湾沿岸海域环境研究之回顾
Review on Forty Years Study on Marine Coastal Environment in Taiwan
 [PDF]

楚璋
Advances in Environmental Protection (AEP) , 2012, DOI: 10.12677/AEP.2012.23005
Abstract: 沿岸海域环境质量是影响海洋生态及生物生存生长之重要因子;该海域质量又与邻近陆域环境质量(如都市及工业废物()之排放)有密切关系。台湾西部人口稠密、工厂林立;不幸西海岸水浅,海水同化废弃物水能力较差;水浅的海域又适合鱼贝类养殖业。因此与鱼贝类之生存生长与消费者的健康生命必须重现。不同的调查分析方法,所得调查结果必然不同。本文综合报导近四十年来台湾沿岸海域环境(包括水体、沉积物及鱼贝类)质量之研究(包括使用之调查分析方法及其质量管理与质量保证)其所发生的重大事故(如海水低温与鱼类死亡,海水高温与鱼类死亡,珊瑚白化(死亡)及秘雕鱼等;耗氧性物质之养殖贝类大量死亡,油污染,西施舌中毒等;以及累积性物质之绿牡蛎,贝类性变异现象等)回顾及其处理情形,以及未来研究工作之期望
The marine environmental quality is the key factor to influence the marine ecosystem and the marine bio- logical resources. Marine pollution on Taiwanis primary due to the city sewage, chemical fertilizers and pesticides, as well as industrial wastes that discharged directly into the nearby river system. Most of the downstream rivers as well as the western coast, where is the important Mariculture oysters and marine biological resources area, are already polluted by excessive organic materials from cities
科学发展观视阈下科学发展观视阈下人口与资源环境的协调发展研究
Scientific Development Perspective of Population and Resource Environment Coordinately Develop Research
 [PDF]

业应
Advances in Social Sciences (ASS) , 2012, DOI: 10.12677/ASS.2012.12005
Abstract: 科学发展观的核心理念是坚持以人为本,树立全面、协调、可持续发展的道路。本文以清镇市为研究对象,通过分析清镇市人口资源环境的发展现状及存在的严峻形势,探讨了清镇市区域可持续发展,提出了强化发展意识,走协调可持续发展的道路;变革“经济人”假设,确立“生态人”观念;以科学发展观为指导,制定清镇市人口发展战略规划;着手提高人口素质,积极应对人口结构性矛盾等对策建议。
The core concept of scientific development concept is to uphold people-oriented, establishing a comprehensive, coordinated and sustainable development. People-oriented development is the population of the starting point and purpose of the performance of the population development of comprehensive systems view of the population as a whole, the population in developing their own system and the economy, society, resources and environment system coordination concept, people go on a gradual development of a sustainable development path. Based on the analysis of population, resources and environment Qingzhen City Develop- ment and the existence of the grim situation, discussed Qingzhen regional sustainable development, proposed to strengthen the development of awareness, and take coordinated and sustainable development path; changes in “economic man” hypothesis, the establishment of “ecological people” concept; to the guidance of scienti- fic concept of development, development of population development strategic planning Qingzhen City; move to improve the quality of the population, and actively respond to the population of structural contradictions countermeasures.
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