نتایج جستجو برای: underground dam

تعداد نتایج: 27427  

Journal: :Theory and building practice 2021

According to the General Plan of city's perspective development, it is planned develop territories irrigation fields and adjoining dam. The article details engineering tasks erecting foundation-basement construction underground structures considering geological hydrogeological conditions low-lying area Odessa region. Features occurrence genesis part sites have been elaborated. paper also elucid...

Journal: :Geofluids 2022

Coal mine underground reservoir water storage technology is an effective technical way to achieve high efficiency of coal mining and protection resources. The stability pillar dam plays a decisive role in the safe stable operation reservoirs. Mining adjacent working faces long-term erosion are main influencing factors dam. In this paper, fluid-solid coupling calculation model for deformation ev...

Journal: :Science 2003
Jianguo Wu Jianhui Huang Xingguo Han Zongqiang Xie Xianming Gao

Habitat fragmentation is the primary cause of the loss of biodiversity and ecosystem services, but its underlying processes and mechanisms remain poorly understood. Studies of islands and insular terrestrial habitats are essential for improving our understanding of habitat fragmentation. We argue that the Three-Gorges Dam, the largest that humans have ever created, presents a unique grand-scale...

Journal: :Journal of environmental management 2009
Denine Schmitz Matt Blank Selita Ammondt Duncan T Patten

The restorative potential of dam removal on ecosystem function depends on the reversibility of dam effects and its operations. While dam removal is an established engineering practice, the need for an understanding of the ecological response remains. We used paleoflood hydrology, hydrologic modeling, and aerial photo interpretation to investigate the long-term ecologic responses to dam failure ...

Journal: :Microbiology 2005
Stefan Fälker M Alexander Schmidt Gerhard Heusipp

DNA adenine methyltransferase (Dam) plays an important role in physiological processes of Gram-negative bacteria such as mismatch repair and replication. In addition, Dam regulates the expression of virulence genes in various species. The authors cloned the dam gene of Yersinia enterocolitica and showed that Dam is essential for viability. Dam overproduction in Y. enterocolitica resulted in an ...

2011
Yi Xiong

This paper firstly described the dam break in the aspects of theories and models. Break parameters prediction, the understanding of dam break mechanics, peak outflow prediction were shown as the essential for the dam break analysis, and eventually determined the loss of the damages. Secondly, as an application example, Foster Joseph Sayers Dam break was further modeled and analyzed using USACE ...

2015
Alexander Kuhlmann Marina Treskova Sebastian Braun J-Matthias Graf von der Schulenburg

BACKGROUND Decision-analytic modelling (DAM) has become a widespread method in health technology assessments (HTA), but the extent to which modelling is used differs among international HTA institutions. In Germany, the use of DAM is optional within HTAs of the German Institute of Medical Documentation and Information (DIMDI). Our study examines the use of DAM in DIMDI HTA reports and its effec...

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