نتایج جستجو برای: سطوح fcc
تعداد نتایج: 40374 فیلتر نتایج به سال:
AIM The aim of this study was to explore adult-trained perioperative nurses' practice of family-centered care (FCC). METHOD A qualitative research design with a hermeneutic phenomenological approach was used. In-depth interviews were conducted with six adult-trained perioperative nurses. Data analysis was guided by Colaizzi's seven-step framework, resulting in a composite description of perio...
We used mechanical alloying with a Spex 8000 mixer/mill to synthesize a series of Fe1002xNix alloys from x50 to x549. The Spex mill was modified so that it could also operate at a reduced milling intensity, and we compared the alloys synthesized after long times with the normal and reduced milling intensities. X-ray diffractometry and Mössbauer spectrometry were used to measure the volume fract...
0— +1— In August 1993 President Bill Clinton signed a historic law granting the U.S. Federal Communications Commission (FCC) the authority to auction spectrum licenses.1 The origin of this law dates back to Ronald Coase’s 1959 proposal to sell the radio spectrum. Congress gave the FCC until August 1994 to begin the fi rst auction. To someone inexperienced in the activities of large bureaucracie...
INTRODUCTION ................................................................................... 101 I. THE COMCAST ORDER’S VISION OF FCC INTERNET REGULATION ............................................................................ 106 A. A (Very) Little Communications Act Set-up ........................... 106 B. The Comcast Order ...............................................................
Ultra Wide-Band (UWB) communication techniques have received increasing attention since United States Federal Communications Commission (FCC) adopted a “First Report and Order” [1] in 2002. Unfortunately the regulations that appeared a few years latter didn't have the same level of commitment and had much tighter constraints. The FCC part. 15 power spectral density limitation is depicted in Fig...
The 3-dimensional (3D) atomic-scale structure of newly discovered face-centered cubic (fcc) and conventional hexagonal close packed (hcp) type ruthenium (Ru) nanoparticles (NPs) of 2.2 to 5.4 nm diameter were studied using X-ray pair distribution function (PDF) analysis and reverse Monte Carlo (RMC) modeling. Atomic PDF based high-energy X-ray diffraction measurements show highly diffuse X-ray ...
در این مطالعه، بررسی نظری جذب هیدروژن بر روی صفحات مختلف از ساختار شبکه مکعبی مرکز وجوه پر و همچنین خوشههای نانوساختاری فلز کبالت با استفاده از روش نظریه تابعی چگالی (dft) انجام شده است. همه محاسبات با استفاده از نرمافزار adf و با تابع revpbe-d3(bj) زیرشاخهای از gga-d و مجموعه پایه dz انجام گرفته است. برای دستیابی به این منظور، ابتدا ساختار شبکه مکعبی مرکز وجوه پر (fcc) فلز کبالت از لحاظ ان...
the conversion process of heavy hydrocarbons to the valuable products such as gasoline is an important operation in the oil refineries.one important process is the “fluidized catalytic cracking” (fcc).feed injection in fcc process has an important role in the selectivity and properties of the products.performance of the feed injection system is dependent on the atomizers.the size and contributi...
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