Data centers are becoming increasingly popular for their flexibility and processing capabilities in the modern computing environment. They are managed by a single entity (administrator) and allow dynamic resource provisioning, performance optimization as well as efficient utilization of available resources. Each data center consists of massive compute, network and storage resources connected wi...

Problem statement: The aim of this study is to create a GIS application for retail facilities planning in Saudi Arabia. Jeddah city has been selected as a case study representing a major commercial city in Saudi Arabia. Approach: The crated application covers several retail planning analysis issues. These issues are divided in to two major groups called the city scale retail planning and the re...

OBJECTIVES To find evidence, either corroborating or refuting, for many persisting beliefs regarding the feasibility of carrying out surgical randomised controlled trials with a placebo arm, with emphasis on the challenges related to recruitment, funding, anaesthesia or blinding. DESIGN Systematic review. DATA SOURCES AND STUDY SELECTION The analysis involved studies published between 1959 ...

Background & objectives: Health care centers are among the most important and essential centers that proper and timely access to them is one of the basic goals of social justice. The health of the individual and the community depends on the centers that provide primary health care. Rapid, timely, and inexpensive access to these centers is very important and necessary, in any community, especial...

This paper attempts to answer the question of whether or not “segregation”, or at least “differentiation”, takes place in commercial areas in terms of “spatial homophily”. Based on the 2010 Household Travel Survey data in the Seoul metropolitan area, we first identify Seoul’s top 20 destinations for weekend shopping and leisure trips. Then, using traveler information regarding gender, age, and ...

Commercial antisera for serotyping 22 heat-labile antigens of Campylobacter jejuni and Campylobacter coli were evaluated by using 66 isolates from human and nonhuman sources. Test results were compared with results of tests using antisera produced at the Centers for Disease Control (CDC), Atlanta, Ga. All strains (three isolates of each of the 22 serotypes) were typeable with the CDC antisera. ...

This paper is devoted to simulate the arc movement in the quenching chamber of the low-voltage circuit breaker. Based on a group of governing equations, a three-dimensional (3-D) arc model is built and solved by a modified commercial code. According to the simulated results, some phenomena such as a ‘bulge’ in front of the arc column, a tail in the rear of the arc column, arc shrinkage near the...

Discrete groups of isometries provide a rich class of groups for detailed study in an undergraduate course in abstract algebra. After developing some geometric tools, we illustrate several important ideas from group theory via symmetry groups. In particular, we consider conjugation, homomorphisms, normal and nonnormal subgroups, generators and relations, quotient groups and direct and semidirec...

Data produced by three dimensional MHD calculations are often difficult to visualize. Here we present a technique to view field lines of vector fields and one to display multiple isosurfaces of scalar fields. These methods do not rely on expensive commercial software and are general enough to be applied to other research sectors where visualization of 3D fields is important. Printed copies of t...