نتایج جستجو برای: rough bed

تعداد نتایج: 74612  

Journal: :Infection control and hospital epidemiology 2008
Leonard A Mermel John M Boyce Andreas Voss Benedetta Allegranzi Didier Pittet

patients in each unit were observed for 1 year in each branch of the crossover study. Twelve beds multiplied by 365 days is 4,380 bed-days; so they had 4,380 bed-days as a maximum (we do not know if the units were consistently fully occupied). Their reported infection rates are approximately 1 to 4 infections per 1,000 bed-days. This means that they observed approximately 4 to 16 infections ove...

2007
D. HURTHER U. LEMMIN E. A. TERRAY

Acoustic Doppler velocity profiler (ADVP) measurements of instantaneous threedimensional velocity profiles over the entire turbulent boundary layer height, δ, of rough-bed open-channel flows at moderate Reynolds numbers show the presence of large scale coherent shear stress structures (called LC3S herein) in the zones of uniformly retarded streamwise momentum. LC3S events over streamwise distan...

Journal: :Ocean Engineering 2021

There has been an increasing attention to the effect of hull roughness on ship resistance and powering. In conventional studies, surfaces have treated as uniform rough while real ships' hulls are exposed heterogeneous fouling accumulation. The work described here presents experimental investigation into resistance. A series towing tests were conducted using a model Wigley with various condition...

Journal: :Frontiers of Mechanical Engineering 2021

Abstract 3D metal printing process has attracted increasing attention in recent years due to advantages, such as flexibility and rapid prototyping. This study aims investigate the orientation effect of electropolishing characteristics on different surfaces 316L stainless steel fabricated by laser powder bed fusion (L-PBF), considering that rough surface printed parts is a key factor limiting it...

Journal: :bulletin of the iranian mathematical society 0
m. ali department of mathematics and statistics‎, ‎jordan university of science and technology‎, ‎irbid‎, ‎jordan.

‎in this paper‎, ‎we study the $l^p$ ($1

Fuzzy rough n-ary subhypergroups are introduced and characterized.

Journal: :International Journal of Engineering & Technology 2018

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده علوم 1388

در این تحقیق زیست چینه نگاری و سنگ چینه نگاری نهشته¬های پرمین بالایی در دو مقطع مجزا (بناریزه و همبست) در ناحیه آباده مورد مطالعه قرار گرفته است. مقطع بناریزه از آهک¬های نودولار مشکی همراه با براکیوپود، مرجان، بریوزوئر و فرامینیفر تشکیل شده است که سن وچیاپینگین معادل پرمین را نشان می¬دهد. مقطع همبست در قاعده از آهک¬های خاکستری رنگ نازک لایه همراه با ماکروفسیل¬های فراوانی به سن پرمین تشکیل شده ا...

Journal: :International Journal of Fatigue 2021

• Investigation of the directional fatigue behaviour PBF-LM/18Ni300. Proposal a new test methodology for evaluating up- and down-skin fatigue. The is influenced by specimen orientation. Fatigue initiation observed from surfaces. Surfaces metals produced additive manufacturing (AM) are known to be rough populated with defects, this is, in particular, true downward-facing (down-skin) When dealing...

Journal: :Proceedings of the American Mathematical Society 1983

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