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Search Results: 1 - 10 of 273190 matches for " 张维娜 "
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沉中浮经穴埋线治疗坐骨神经痛
马玉泉,
中国中医药信息杂志 , 1995,
Abstract: 坐骨神经病,中医属痛痹,为临床中较多见的病种之一。笔者自1988年至1995年以来,采用沉中浮手法经穴埋线治疗1253例坐骨神经痛,疗效显著,现报告如下。
争抢进攻篮板球“最初反弹段”的意识和方法
基?,刘庆
天津体育学院学报 , 1985,
Abstract:
中国房地产上市公司多元化与企业绩效关系
Relationship between diversification and performance of Chinese real estate listed companies

,高帅,
- , 2015,
Abstract: 多元化与企业绩效关系是目前学术界争议较大的热点问题之一。该文基于新型资本市场现状,以房地产上市公司为样本, 采用2007-2013年时间序列数据从微观视角分析区域类型多元化、 产品类型多元化、 业务类型多元化对企业绩效的影响; 采用因子分析法计算反映公司多元化程度与企业绩效的集成指标, 从综合视角审视二者之间的关系。实证结果表明: 房地产上市公司各种类型多元化与企业绩效显著性关系不强。具体而言, 区域类型多元化对企业绩效折价效应最小, 产品类型多元化对企业绩效折价效应其次,业务类型多元化对企业绩效折价效应最为显著; 此外, 公司综合多元化程度越高对企业绩效的折价效应越显著。
Abstract:The existing research on the relationship between diversification and company performance still has many controversies. This study analyzes selected Chinese real estate listed companies as examples of company performance in an emerging capital market. The analysis considers the influence of regional diversification, product diversification, and business type diversification on the company performance using time series data (2007-2013). The factor analysis method is used to calculate a synthesize index to relate the degree of diversification and the performance. The results show no significant correlation between diversification and performance with regional diversification having minimal discount effect on the performance, product diversification having a secondary discount effect on the performance, and business diversification having the most significant discount effect on the performance. The combined effect of the diversification has a greater discount effect on the company performance.
中国房地产上市公司多元化与企业绩效关系
Relationship between diversification and performance of Chinese real estate listed companies

,高帅,
- , 2015,
Abstract: 多元化与企业绩效关系是目前学术界争议较大的热点问题之一。该文基于新型资本市场现状,以房地产上市公司为样本, 采用2007-2013年时间序列数据从微观视角分析区域类型多元化、 产品类型多元化、 业务类型多元化对企业绩效的影响; 采用因子分析法计算反映公司多元化程度与企业绩效的集成指标, 从综合视角审视二者之间的关系。实证结果表明: 房地产上市公司各种类型多元化与企业绩效显著性关系不强。具体而言, 区域类型多元化对企业绩效折价效应最小, 产品类型多元化对企业绩效折价效应其次,业务类型多元化对企业绩效折价效应最为显著; 此外, 公司综合多元化程度越高对企业绩效的折价效应越显著。
Abstract:The existing research on the relationship between diversification and company performance still has many controversies. This study analyzes selected Chinese real estate listed companies as examples of company performance in an emerging capital market. The analysis considers the influence of regional diversification, product diversification, and business type diversification on the company performance using time series data (2007-2013). The factor analysis method is used to calculate a synthesize index to relate the degree of diversification and the performance. The results show no significant correlation between diversification and performance with regional diversification having minimal discount effect on the performance, product diversification having a secondary discount effect on the performance, and business diversification having the most significant discount effect on the performance. The combined effect of the diversification has a greater discount effect on the company performance.
中国房地产上市公司多元化与企业绩效关系
Relationship between diversification and performance of Chinese real estate listed companies

,高帅,
- , 2015,
Abstract: 多元化与企业绩效关系是目前学术界争议较大的热点问题之一。该文基于新型资本市场现状,以房地产上市公司为样本, 采用2007-2013年时间序列数据从微观视角分析区域类型多元化、 产品类型多元化、 业务类型多元化对企业绩效的影响; 采用因子分析法计算反映公司多元化程度与企业绩效的集成指标, 从综合视角审视二者之间的关系。实证结果表明: 房地产上市公司各种类型多元化与企业绩效显著性关系不强。具体而言, 区域类型多元化对企业绩效折价效应最小, 产品类型多元化对企业绩效折价效应其次,业务类型多元化对企业绩效折价效应最为显著; 此外, 公司综合多元化程度越高对企业绩效的折价效应越显著。
Abstract:The existing research on the relationship between diversification and company performance still has many controversies. This study analyzes selected Chinese real estate listed companies as examples of company performance in an emerging capital market. The analysis considers the influence of regional diversification, product diversification, and business type diversification on the company performance using time series data (2007-2013). The factor analysis method is used to calculate a synthesize index to relate the degree of diversification and the performance. The results show no significant correlation between diversification and performance with regional diversification having minimal discount effect on the performance, product diversification having a secondary discount effect on the performance, and business diversification having the most significant discount effect on the performance. The combined effect of the diversification has a greater discount effect on the company performance.
中国房地产上市公司多元化与企业绩效关系
Relationship between diversification and performance of Chinese real estate listed companies

,高帅,
- , 2015,
Abstract: 多元化与企业绩效关系是目前学术界争议较大的热点问题之一。该文基于新型资本市场现状,以房地产上市公司为样本, 采用2007-2013年时间序列数据从微观视角分析区域类型多元化、 产品类型多元化、 业务类型多元化对企业绩效的影响; 采用因子分析法计算反映公司多元化程度与企业绩效的集成指标, 从综合视角审视二者之间的关系。实证结果表明: 房地产上市公司各种类型多元化与企业绩效显著性关系不强。具体而言, 区域类型多元化对企业绩效折价效应最小, 产品类型多元化对企业绩效折价效应其次,业务类型多元化对企业绩效折价效应最为显著; 此外, 公司综合多元化程度越高对企业绩效的折价效应越显著。
Abstract:The existing research on the relationship between diversification and company performance still has many controversies. This study analyzes selected Chinese real estate listed companies as examples of company performance in an emerging capital market. The analysis considers the influence of regional diversification, product diversification, and business type diversification on the company performance using time series data (2007-2013). The factor analysis method is used to calculate a synthesize index to relate the degree of diversification and the performance. The results show no significant correlation between diversification and performance with regional diversification having minimal discount effect on the performance, product diversification having a secondary discount effect on the performance, and business diversification having the most significant discount effect on the performance. The combined effect of the diversification has a greater discount effect on the company performance.
中国房地产上市公司多元化与企业绩效关系
Relationship between diversification and performance of Chinese real estate listed companies

,高帅,
- , 2015,
Abstract: 多元化与企业绩效关系是目前学术界争议较大的热点问题之一。该文基于新型资本市场现状,以房地产上市公司为样本, 采用2007-2013年时间序列数据从微观视角分析区域类型多元化、 产品类型多元化、 业务类型多元化对企业绩效的影响; 采用因子分析法计算反映公司多元化程度与企业绩效的集成指标, 从综合视角审视二者之间的关系。实证结果表明: 房地产上市公司各种类型多元化与企业绩效显著性关系不强。具体而言, 区域类型多元化对企业绩效折价效应最小, 产品类型多元化对企业绩效折价效应其次,业务类型多元化对企业绩效折价效应最为显著; 此外, 公司综合多元化程度越高对企业绩效的折价效应越显著。
Abstract:The existing research on the relationship between diversification and company performance still has many controversies. This study analyzes selected Chinese real estate listed companies as examples of company performance in an emerging capital market. The analysis considers the influence of regional diversification, product diversification, and business type diversification on the company performance using time series data (2007-2013). The factor analysis method is used to calculate a synthesize index to relate the degree of diversification and the performance. The results show no significant correlation between diversification and performance with regional diversification having minimal discount effect on the performance, product diversification having a secondary discount effect on the performance, and business diversification having the most significant discount effect on the performance. The combined effect of the diversification has a greater discount effect on the company performance.
莱州湾南岸平原古湖泊的形成与演变
韩美,,李艳红,
地理科学 , 2002,
Abstract: 运用查阅历史文献、地层剖面分析、地名考证、卫片解译等多种方法确证了莱州湾南岸古湖泊的存在,同时研究了它的形成与演变过程。莱州湾南岸有巨淀湖、黑冢泊、别画湖等古湖泊,它们形成于距今约6000年以前,系由河口湾泻湖演变而成。该区古湖泊经历了中全新世全盛期和晚全新世收缩期两个阶段。湖泊消亡的原因是气候变干、河道迁移、人类活动影响等,其中河道迁移是最主要原因。
中国湖泊与环境演变研究的回顾与展望
韩美,李艳红,,
地理科学进展 , 2003, DOI: 10.11820/dlkxjz.2003.02.003
Abstract: 我国70~80年代中期,湖泊沉积研究受油田开发的带动而得以兴起;80年代中期之后,科研力量不断壮大,研究的内容侧重气候变化,研究区域不断扩大,方法不断完善,测年手段更趋精确;近几年来又特别注重研究云贵高原和青藏高原的湖泊,强化短时间尺度研究,注重人为因素对湖泊沉积环境的影响。今后该领域研究应注意加强环境指标的综合运用与定量化研究,强化分析环境演变中人为因素的影响,尽快建立中国第四纪湖泊数据库,积极开展极地地区湖泊的相关研究。
VC沉淀粒子对TWIP钢加工硬化行为的影响
志波,刘振宇,
金属学报 , 2012, DOI: 10.3724/SP.J.1037.2012.00094
Abstract: 对Fe-Mn-C系2种TWIP钢Fe22Mn0.6C和Fe22Mn0.6C0.19V的显微组织、力学性能及加工硬化行为进行了研究.结果表明,经900℃固溶处理后的Fe22Mn0.6C0.19V钢和经800℃固溶处理的Fe22Mn0.6C钢具有晶粒尺寸相近的奥氏体组织;Fe22Mn0.6C0.19V钢在真应变ε>0.14后进入加工硬化速率平台区,而Fe22Mn0.6C钢则在ε>0.12后即进入加工硬化速率平台区;Fe22Mn0.6C0.19V钢在ε>0.21以后结束了加工硬化速率平台区,其平台区明显较Fe22Mn0.6C钢短;Fe22Mn0.6C0.19V钢加工硬化速率平台在ε>0.21以后结束是由VC沉淀粒子与TWIP钢形变孪晶相互作用引起的,VC沉淀粒子对于TWIP钢形变孪晶的产生及增殖都有明显的抑制作用.
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