نتایج جستجو برای: congresses
تعداد نتایج: 1016 فیلتر نتایج به سال:
Massage therapists have unfortunately endured the position of the lower rungs on the cultural and educational ladder of the medical field despite our clinical experience successfully treating many physical conditions. A hierarchy of respect, credibility, and income has historically separated all the fields within the healing arts, not just our own. Physicians, surgeons, naturopaths, osteopaths,...
1. Abstract For the performance measure approach (PMA) of RBDO, a transformation between the input random variables and the standard normal random variables is required to carry out the inverse reliability analysis. Since the transformation uses the joint cumulative density function (CDF) of input variables, the joint CDF should be known before carrying out RBDO. In many industrial RBDO problem...
1. Abstract The aim of this paper is to show the calculation and optimization of a steel frame according to Eurocode 1 and 3 (parts 1.1 and 1.2). A comparison is made using square hollow section (SHS) columns and SHS or rectangular hollow section (RHS) for beams at a pressure vessel supporting frame (Figure 1). Optimizing for fire resistance for a given time it shows the prize of safety, the re...
Associate Professor, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Newmark Laboratory, 205 North Mathews Avenue, Urbana, IL 61801, USA Email: [email protected] Undergraduate Student, Department of Aeronautical Engineering, University of Illinois at Urbana-Champaign, Talbot Laboratory, Urbana, IL 61801, USA Email: [email protected] Associate Professo...
1. Abstract Work has been carried out to investigate some of the important design parameters and performance criteria that should be addressed when designing servo mechanisms and, subsequently, to put forward a computationally efficient design procedure. Emphasis is put on the handling of the discrete design variables. A two-stage approach is presented that uses dimensionless parameters that ma...
In this paper, an attempt is made to develop a structural health monitoring system that can adapt to the structural systems and environments, by introducing the learning ability. By introducing the learning ability, it is not necessary to prepare any previous knowledge and examination for the underlying structures and environment. In other words, it is not necessary to use the precise modeling ...
1. Abstract A novel boundary method for implementing design sensitivity analysis (DSA) by FEM is developed in shape optimization problems of an elastic body. A sensitivity formula is derived based on the continuum formulation in a boundary integral form, which consists of the boundary solutions and shape variation vectors. Though the boundary element method (BEM) has mainly been used to obtain ...
In sequential approximate optimization for general or complex structures, it seems to be ineffective due to the need of many numbers of structural analyses. It was, besides, more expensive to structural analysis than selection of experiment point, response surface approximation and optimization algorithm execution. So, it is necessary for distributed processing to reducing the time. Current com...
1. Abstract Evolutionary topology optimization using design space adjustment and refinement is proposed to deal with large-scale problems. Until now, parallel processing methods have been mainly employed, but they need special treatment in the analyses and algorithms. Design space optimization proposed in this paper is a new efficient method for large-scale topology optimization by virtue of tw...
3. Introduction Although existing SATCOM antennas provide broad pattern coverage, they are still too large (15”-30”), heavy and bulky and therefore not quite portable. The goal of this paper is to address the existing need of replacing bulky and often inefficient antennas currently used for satellite communications at UHF frequencies (224-317MHz) with a particular emphasis on the higher 290317M...
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