نتایج جستجو برای: 2 and 4 buffet
تعداد نتایج: 17336984 فیلتر نتایج به سال:
This paper presents transonic buffet simulations over a swept wing of supercritical airfoils with Unsteady Reynolds-Averaged Navier-Stokes (URANS) and Detached-Eddy Simulation (DES) methods. The NASA SC(2)-0714 airfoil is used as wing profile. Computations are conducted at free-stream Mach numbers from 0.72 to 0.84 for Reynolds number 45.0 × 10 based on aerodynamic chord length. Firstly, 2D NAS...
We show that the beta process is the de Finetti mixing distribution underlying the Indian buffet process of [2]. This result shows that the beta process plays the role for the Indian buffet process that the Dirichlet process plays for the Chinese restaurant process, a parallel that guides us in deriving analogs for the beta process of the many known extensions of the Dirichlet process. In parti...
The use of artificial neural networks (ANN) for predicting the empennage buffet pressures as a function of aircraft state has been investigated. The buffet loads prediction method which is developed depends on experimental data to train the ANN algorithm and is able to expand its knowledge base with additional data. The study confirmed that neural networks have a great potential as a method for...
Introduction & purpose: students spend important period of their life at school that coincided with their physical and mental growing. So health services including school environmental health has a positive impact on the health of students and, ultimately, society. Therefore according to the importance of the subject, the aim of this study is investigating the environmental health status among ...
This study investigates the quality and quantity of school foodstuff available to the students. The survey was conducted utilizing questionnaire for collecting data. The samples were 490 students at the last grade of daily elementary school, junior high school, and high school in cities of Bojnord, Esfarayen and Shirvan selected randomly. The findings indicate that about half of the students (5...
The aim of this present study was to determine the reliability of a buffet-type meal as a measure of spontaneous energy and macronutrient intake. In addition, we evaluated the short-term effects of diet on the composition of the substrate mix oxidized postprandially. Fourteen male subjects had ad libitum access to a variety of foods from a buffet-type meal offered in the laboratory during two i...
Previous cross-sectional studies have shown that sedentary males, unlike their active counterparts, are unable to compensate for previous energy intake (EI). The present study therefore investigated the effects of a 6-week moderate exercise programme (4 times per week, 65-75 % maximal heart rate) on appetite regulation in healthy sedentary volunteers using a longitudinal design. EI at a buffet ...
Abstract This experimental study investigates the possibility of controlling transonic buffet by means a trailing edge flap with an upward deflection (referred to as “upper flap”, or: UTEF). Different geometries (straight and serrated) dimensions UTEFs (with heights ranging between 1 2% chord) have been studied respect their impact on behavior. The effectiveness has investigated schlieren parti...
abstract the cr(iii) and zn(ii) complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl)benzoic acid as ligand have been prepared by reacting cr(no3) and zn(no3)2 and ligand in cloroform. the cr and zn complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl) were also prepared in chloroform and aceton solutions. the uv-visible and ft-ir spectra of...
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