oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 75 )

2018 ( 1562 )

2017 ( 1773 )

2016 ( 1776 )

Custom range...

Search Results: 1 - 10 of 75327 matches for " 徐娇媚 "
All listed articles are free for downloading (OA Articles)
Page 1 /75327
Display every page Item
近51a伊犁河谷热量资源时空变化
娇媚,文修,李大平
干旱区研究 , 2014,
Abstract: 基于伊犁河谷10个气象站1960—2010年年平均气温、≥0℃和≥10℃积温及无霜冻期气象资料,采用线性趋势分析、[WTBX]t-检验、[WTBZ]Kriging空间插值等方法,对伊犁河谷近51a的热量资源时空变化特征进行分析。结果表明①热量资源的空间分布总体呈现平原地区多山区少的特点;②近51a伊犁河谷的热量资源呈增加趋势,年平均气温、≥0℃和≥10℃积温及持续日数、无霜冻期分别以0.43℃·(10a)-1、89.9℃·d·(10a)-1、88.0℃·d·(10a)-1、4.0d·(10a)-1、3.2d·(10a)-1和5.4d·(10a)-1的倾向率上升,51a来分别增加了2.2℃、458.5℃·d、448.8℃·d、20.4d、16.3d和27.5d。并且各热量资源要素在20世纪90年代中后期发生突变,突变后年平均气温、≥0℃持续日数和无霜冻期在平原地区增幅最大,在山间盆地增幅较小。≥0℃与≥10℃积温在丘陵地区增加最明显,在山间盆地增加最少。而≥10℃持续日数在山间盆地增加最多,在平原地区增加最少。
低效林改造对土壤理化性质及水源涵养功能的影响
王会利,唐玉贵,娇媚
中国水土保持科学 , 2010,
Abstract: ?通过调查分析广西苍梧县低效马尾松、湿地松纯林经采取异龄混交荷木、大叶栎等阔叶树种的改造措施后土壤理化性状及水源涵养功能,表明:1)低效林改造后,林地土壤养分含量得到提高,土壤物理性状得到改善;2)林地土壤水分状况和渗透性能得到显著提高;3)与低效马尾松纯林(2166t/hm2)和湿地松纯林(2075t/hm2)相比,马尾松+荷木、湿地松+荷木和湿地松+大叶栎林地土壤蓄水量显著提高,分别达到2543、2506和2483t/hm2;4)0~20cm土层土壤理化性状改善幅度大于20~40cm土层。低效林混交荷木、大叶栎后,改造效果明显,是低效林改造措施之一。
浅析南京地铁盾构进出洞区土体的加固技术
Analysis the in and out of the Hole Region’s Soil Reinforcement Technology of the Nanjing Subway Shield
 [PDF]

,
Open Journal of Transportation Technologies (OJTT) , 2013, DOI: 10.12677/OJTT.2013.22020
Abstract:
本文详细阐述了盾构法隧道在进出洞区土体加固的各种技术,介绍了南京地铁盾构进出洞区土体加固的常用技术,并对他们从多个角度进行了对比分析,对加固技术的选择提供一定的参考依据;结合前人的研究成果,对进出洞区的纵向和横向加固范围进行了归纳总结;最后介绍了南京某一盾构区间运用素钻孔灌注桩加双管旋喷桩和降水技术来进行土体加固的工程实例,论证了该加固技术的可行性,确保了盾构的成功始发和到达,对今后的类似工程具有一定的指导意义。
This paper describes the shield tunnel’s in and out of the hole region’s soil reinforcement technologies, and introduces a common technique for soil reinforcement of Nanjing subway shield’s in and out of the hole region, and gives them a comparative analysis from multiple perspectives. To provide a reference basis for selection of reinforcement technology, by combining with the results of previous studies, it summarizes the in and out of the hole area’s longitudinal and transverse reinforcement range. Finally, it introduces a soil reinforcement project example of a Nanjing shield zone which used the bored pile, double-barreled churning pile and lowering technologies, and demonstrates the feasibility of this reinforcement technology which ensures the success of originating and reach of the shield. This study will have a certain guiding significance of the similar projects in the future.
岩心?探地?编?方法
??
地质与勘探 , 1957,
Abstract: 目前我?在?探??方面?缺乏一套系?而完整的方法,各?位所?取的方法各不相同,互有利弊。?交流这方面的????,提高???量和效率,特?表此文,供大家研究?考。这篇文章所介?的原始编???、?孔柱状?内容、室内描述现埸?查的方法、残留岩心的?算等?题,???一步研究。希?者把你?的意见和????我?
后期维特根斯坦哲学――日常语言分析视域下的语法研究

安徽大学学报(哲学社会科学版) , 2010,
Abstract: 后期维特根斯坦关注日常语言的实际用法,认识到其前期逻辑分析方法的不足,并进行了猛烈的批评。他认为逻辑分析方法具有单一化、简单化、理想化等缺点,不能如实地描述日常语言的实际使用情况,因而不能满足真正哲学研究的要求。他主张真正的哲学研究运用描述和综观的方法,对日常语言实际用法作语法研究,考察不同语词的实际使用情况,注意其中的差异和类似,消除对于语言形式的不同误解,最终达到澄清哲学问题的目的。尽管遇到一些误解与诱惑,但其日常语言分析视域下的语法研究对当代哲学研究特别是日常语言学派产生了深远影响。
当前世界人口研究的主要课题

人口研究 , 1988,
Abstract: ?<正>李竞能在《人口情报与研究》1988年第1期著文指出,当前人口研究最受到重视的有以下七个方面:1.生育率问题。影响生育水平的主要因素:有社会经济因素、文化因素和人口本身的因素,发展中国家生育转变,国家和地区间的生育水平差异,生育政策,生育控制,计划生育管理。成本收益分析等。2.对死亡率的研究。如何依据不完备的人
对偶平坦的四次根式度量
Dually Flat Fourth Root Metric
 [PDF]


Pure Mathematics (PM) , 2013, DOI: 10.12677/PM.2013.33029
Abstract:
本文主要研究三类带根号的芬斯勒度量,并得到了它们作为对偶平坦度量时所满足的微分方程,进一步探讨了三类度量之间的关系。
In this paper, we mainly study three kinds of Finsler metrics which have the square root, and get some differential equations when they are dually flat. Furthermore, we discuss the relationship between the three kinds of Finsler metrics.
浅谈高校交换生教务管理工作中的问题及思考
A Brief Discussion on the Educational Administration Problems from the Exchange Student in University
 [PDF]

嘉靖
Creative Education Studies (CES) , 2013, DOI: 10.12677/CES.2013.12010
Abstract:
我国交换生项目是高校间国际交流与合作的新形式,是高校改革人才培养的新教育模式。本文通过高校交换生项目在实践中存在的问题,探讨如何做好学生交流结束回校后的教务管理工作,确保学生课程衔接、学习生活更加有序进行。
Student exchange program is not only the new form of international exchange and cooperation between universities, but also the new model of educational reformation in China. Based on the problems from the student exchange program, this paper mainly discusses how to handle the educational administration after the exchange students go back to school to ensure that the curriculum articulation and school life of these students will proceed more orderly.
我国电力企业人力资源外包状况研究
Study on Human Resource Outsourcing of Chinese Electric Power Enterprises
 [PDF]

莉莉
Service Science and Management (SSEM) , 2013, DOI: 10.12677/SSEM.2013.24016
Abstract:

本文使用调查问卷和高层访谈方法,就我国电力企业人力资源外包发展状况进行研究。首先介绍目前我国电力企业进行人力资源外包的概况;其次比较电力企业人力资源外包的收益和风险;再次探讨电力企业人力资源外包的模式和内容;最后,对我国电力企业人力资源外包趋势提出展望和建议。
This paper focuses on human resource outsourcing of Chinese electric power enterprises by using questionnaires and interviews with executives. Firstly, a general survey of HRO of Chinese electric power enterprises is introduced; Secondly, the advantage and disadvantage of HRO of electric power enterprises are compared; Thirdly, the pattern and content of HRO of Chinese electric power enterprises are explored; Finally, the outlook of HRO of Chinese electric power enterprises is proposed.

基于低碳经济的农村废弃物物流的构建研究
Research on the Construction of Rural Waste Logistics Based on Low-Carbon Economy
 [PDF]


Journal of Low Carbon Economy (JLCE) , 2013, DOI: 10.12677/JLCE.2013.23018
Abstract:
对农村废弃物与农村废弃物物流进行了界定,并结合低碳经济发展的内涵提出了构建农村废弃物物流应遵循减量化、再利用与经济适用原则。在此基础上,针对农作物秸秆、畜禽粪便、农村生活垃圾三类农村废弃物构建了相应的废弃物物流系统。
Rural waste and rural waste material logistics are defined in this paper. And the principles of the waste material logistics construction are put forward, combined with low carbon economic development connotation. These principles include the reduction, reuse and economic applicable principle. Base on these, the three corresponding waste material logistics systems are being constructed, according to the crop straw, poultry and animal feces, rural living garbage.
Page 1 /75327
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.