نتایج جستجو برای: rough bed
تعداد نتایج: 74612 فیلتر نتایج به سال:
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...
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...
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...
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...
in this paper, we study the $l^p$ ($1
Fuzzy rough n-ary subhypergroups are introduced and characterized.
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...
• 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...
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