نتایج جستجو برای: buried channels
تعداد نتایج: 150398 فیلتر نتایج به سال:
Buried pipes in the modern societies are considered as lifelines with a vital and essential role in the human life cycle. The performance of buried pipes is affected by many factors such as ground surface subsidence. In this paper, the effect of subsidence on pipelines is investigated using a three-dimensional numerical modeling developed in FLAC3D software for four types of most commonly used ...
مقدمه: نوکاردیا باکتریهای گرم مثبت، هوازی و اسید فاست نسبی هستند که طیف وسیعی از عفونتهای حاد و مزمن را در حیوانات و انسانها را ایجاد میکنند. خاک و سایر منابع محیطی خواستگاه طبیعی این گروه از باکتریها میباشد. گونههای نوکاردیا قادرند در منابع محیطی بیمارستانها باقیمانده و در میزبانان نقص سیستم ایمنی عفونتهای کشندهای را سبب شوند. هدف از این مطالعه، مقایسه و ارزیابی دو روش جداسازی نوکار...
Channels and cavities play important roles in macromolecular functions, serving as access/exit routes for substrates/products, cofactor and drug binding, catalytic sites, and ligand/protein. In addition, channels formed by transmembrane (TM) proteins serve as transporters and ion channels. MolAxis is a new sensitive and fast tool for the identification and classification of channels and cavitie...
Response analysis of the buried pipeline subjected to reverse fault displacement is very important for design, detection and protection of buried pipelines. This paper looks at the buckling behavior of a buried pipeline subjected to reverse fault displacement in the rock stratum. Effects of internal pressure, wall thickness, fault displacement and burial depth on the buckling mode and the axial...
Landslides often occur in land slopes, estuaries, fjords, and intertidal zones the marine environment, while landslides tidal channels have not been systematically reported. The Zhoushan sea area is dotted with islands crisscross channels, which a typical channel development area. data from coastal zone island survey, offshore engineering site selection, environmental survey show that are very ...
Occurrence and accommodation of charged amino acid residues in proteins that are structurally equivalent to buried non-polar residues in homologues have been investigated. Using a dataset of 1,852 homologous pairs of crystal structures of proteins available at 2A or better resolution, 14,024 examples of apolar residues in the structurally conserved regions replaced by charged residues in homolo...
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