检索结果-南通市图书馆

New Understandings of the Shaziba Landslide-Debris Flow in Hubei Province, China

在线全文

学校读者我要写书评

暂无评论

Journal of Earth Science 2023年

作者： taiyi chen Guangli Xu Tetsuya Hiraishi Disaster Prevention Research Institute (DPRI) Faculty of Engineering China University of Geosciences

The mechanism involved in deep-seated landslide-debris flow disaster chains has been studied for many years, however, it is still not completely understood. This study aims to analyze the key factors that were involved and led to the geological disaster of Shaziba 62.0 m deep landslide-debris flow. Two extensive field investigations were conducted before and after the slope failure *** study further used drilled cores, high-density resistivity method, and aerial photographs to obtain valuable insights into the disaster chain. It was found that opencast coal mining operations broke the locked segment of the front edge and heavy rainfall softened the slip zones along the faults. Mechanical calculations demonstrated that the coupling condition of the opencast coal mining and heavy rainfall triggered the landslide. A new evolution model was put forth to describe the complex mechanism of combining progressive retreat and tractive failure of hydraulic drive landslide, which was governed by the bedding-plane rock layer. Surface runoff caused the mass of the landslide to liquefy throughout the sliding process, resulting in overlapping deposits, debris-flow-barrier-lake, and erosion. These new insights led to the indication of a different triggering mechanism of landslides-debris flows, as well as laid the foundation for the proposed physical and mechanical mechanism model based on progressive retreat soil-rock mixed landslides with an upper locked segment and lower weak interlayer under heavy rainfall.

关键词：

管理如何提升产品质量?——来自中国企业-劳动力匹配调查(CEES)的经验证据

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

产业经济研究 2019年第3期 88-100页

作者：程虹陈太义武汉大学质量发展战略研究院

利用2018年中国企业-劳动力匹配调查(CEES)的最新数据,尤其是其参照国际通行做法"世界管理调查"(WMS)所形成的覆盖考核监控、目标规划与绩效激励等维度的管理得分指标,运用OLS、一阶差分法与分组回归等估计策略,针对管理对产品质量的影... 详细信息

利用2018年中国企业-劳动力匹配调查(CEES)的最新数据,尤其是其参照国际通行做法"世界管理调查"(WMS)所形成的覆盖考核监控、目标规划与绩效激励等维度的管理得分指标,运用OLS、一阶差分法与分组回归等估计策略,针对管理对产品质量的影响效应与路径进行稳健性实证分析。研究发现:管理提升1个标准差,产品质量将上升0. 150~0. 250个标准差。进一步的路径考察与异质性分析表明,管理有助于拉动质量投入和强化内部质量控制,但主要通过拉动质量投入促进产品质量提升;这些影响在资本密集度偏低、中等规模的企业中更大,在其他企业中则相对较弱,同时,在考核监控维度上最为显著,其次是绩效激励,最后是目标规划。

关键词：产品质量管理一阶差分法分组回归 CEES

在线全文

学校读者我要写书评

暂无评论

质量管理创新对产品创新影响实证研究

科研管理 2023年第4期44卷 136-143页

作者：陈太义张月义江西财经大学财税与公共管理学院江西南昌330013 中国计量大学经济与管理学院浙江杭州310018

质量管理创新对企业的产品质量提升与经营绩效优化效应得到了人们的普遍重视,但通过打开企业产品创新的过程来考察质量管理创新对产品创新影响机制的研究尚不多见。本文通过打开企业产品创新的过程,分析质量管理创新与作为知识显性载体... 详细信息

质量管理创新对企业的产品质量提升与经营绩效优化效应得到了人们的普遍重视,但通过打开企业产品创新的过程来考察质量管理创新对产品创新影响机制的研究尚不多见。本文通过打开企业产品创新的过程,分析质量管理创新与作为知识显性载体的产品创新投入、间接的隐性知识转移和产品创新投入转化效率的关联,利用世界银行中国企业调查的数据,实证研究了质量管理创新对企业产品创新的影响方向及机制。研究结果表明:总体上,质量管理创新对产品创新具有显著的促进效应。在影响机制上,质量管理创新通过对产品创新投入的拉动效应和基于隐性知识的溢出效应促进产品创新,但也通过对产品创新效率的抑制效应阻碍产品创新。上述结果经过稳健性检验后仍然成立。本文的研究不仅有助于丰富企业产品创新过程机理和质量管理创新经济后果的文献,而且可以引导企业准确把握质量管理创新利弊,为实现产品创新提供参考。

关键词：质量管理创新产品创新创新投入隐性知识创新效率

Interaction Mechanism between Formation Process of Bank Collapse Disaster Chain and Territorial Space Utilization of Large Reservoirs

在线全文

学校读者我要写书评

暂无评论

Journal of Geoscience and Environment Protection 2022年第5期10卷 160-169页

作者： taiyi chen Guangli Xu Jiangfeng Li Huizhong Li Yifan Sheng Ran Qi Xueping Li Yang Wang Yuqing Ding Junyu Zhang Junning Liu China University of Geosciences Wuhan China Three Gorges Geotechnical Consultants Co. Ltd. Wuhan China

Number of reservoirs in China ranks the first in the world. Due to the complex geology, and superimposing rainfall and reservoir water fluctuation, the bank collapse chain is prone to disasters. The Yangtze River Reservoir is key geological disaster prevention area. Studying the process of reservoir disaster is significant because of the limited territorial space utilization. Scientific and technological issues, i.e., the mechanism of bank collapse disaster chain of large reservoirs, the interaction mechanism of bank collapse disaster chain and territorial space utilization, the early identification, monitoring technology and ecological prevention and control technology system of disaster chain, and the territorial space geological safety and control technology system are focused. We consider the material transformation, energy transfer and information transmission in disaster chain;adopt the survey, Space-Air-Ground integrated monitoring, theoretical analysis, numerical simulation and the multidisciplinary research methods;reveal the chain source development, evolution process of secondary and derivative disasters;explore the interaction mechanism of disaster chain and territorial space utilization;construct the system of early identification, monitoring, early warning, control and ecological preven-tion to achieve Emission Peak and Carbon Neutrality;provide theoretical and technical support for the territorial space geological safety, regulation and utilization of large reservoirs.

关键词： The Large Reservoirs Disaster Chain Disaster-Causing Mechanism Territorial Space Utilization Ecological Prevention

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Profile of *** chen

Science China(Life Sciences) 2024年第10期67卷 2062-2063页

作者： chen, Songlin Yellow Sea Fisheries Res Inst Qingdao Peoples R China

For decades,*** has been engaged in fish germplasm preservation,sex control and research focusing on molecular breeding for disease *** discovered the first sex-specific molecular marker of fish(chen et al.,2007),deciphered the first fish genome(Chinese tongue sole)in China,revealed the sex determination mechanism in fish(chen et al.,2014),and created molecular sex control *** also discovered the molecular mechanism of metamorphosis in flatfish(Shao et al.,2017)and developed China's first fish disease-resistant breeding gene chip,“YUXIN No.1”.

关键词： technology breeding

在线全文

学校读者我要写书评

暂无评论

分组陪集码的误码特性分析

通信学报 1993年第4期14卷 78-82页

作者：陈常嘉蔡宏陈太一北方交通大学北京100044

本文讨论了分组陪集码在最大似然译码与最近陪集译码下的误码特性,这一分析是分别在归一化重量分布和真实距离下做出的,并对其差异进行了比较。本文同时讨论了采用最小距离和最小距离系数进行误码率估计的方法,并指出这些参数可由子码... 详细信息

本文讨论了分组陪集码在最大似然译码与最近陪集译码下的误码特性,这一分析是分别在归一化重量分布和真实距离下做出的,并对其差异进行了比较。本文同时讨论了采用最小距离和最小距离系数进行误码率估计的方法,并指出这些参数可由子码的相应汉明参数得到。

关键词：陪集码误码译码编码调制

在线全文

学校读者我要写书评

暂无评论

新时代科技定名工作任重而需创新

科技术语研究 2000年第3期2卷 27-29页

作者：陈太一全国名词委信息科学新词审定组

处于我国新时代的科技术语的定名工作,由于下列因素而深感任务的重要性和迫切性.

关键词：科技术语定名工作创新定名释义

在线全文

学校读者我要写书评

暂无评论

李开先及其《中麓画品》著述范式

美术学报 2011年第3期 50-54页

作者：陈太一仲恺农业工程学院

中国美术史上的画学著作《中麓画品》,内容涉及明代绘画史、绘画鉴赏与批评等许多方面,是我们了解明代中期绘画的基本史料。本文试图从学术史角度对《中麓画品》进行梳理,主要探讨其写作问题。

关键词：中麓画品明代绘画李开先写作

Interaction Mechanism between Formation Process of Bank Collapse Disaster Chain and Territorial Space Utilization of Large Reservoirs

在线全文

学校读者我要写书评

暂无评论

Interaction Mechanism between Formation Process of Bank Coll...