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The purpose of this paper is to present an approach to design passive loop systems in order to reach good performances.

The optimization has been performed by means of the MATLAB optimization toolbox “Gatool” which solves the optimization problems with a genetic algorithm.

Several configurations have been analyzed by varying the number of loops from 2 to 15, whose geometry has been chosen by the genetic algorithm. Considering a five loops configuration, along the reference path it is possible to obtain a shielding factor almost constant and equal to 3.5.

The optimized configurations have been compared with a practical employed layout composed of 17 closed loops placed above and around the junction zone. The shielding factors obtained by the six loops configuration are comparable with the ones of the practical layout.

Induction motors (IMs) are considered one of the most important elements of the industrial process. However, in this environment, these machines are subject to electrical and mechanical faults, which may cause significant financial losses. Thus, the purpose of this paper is to propose an optimal identification of inter-turn insulation faults present in the random wound IM.

The design approach deals with a simple technique, using the effect of the inter-turn fault in modifying the high-frequency components of the applied pulse-width-modulated voltage.

The change in insulation strength between the turns affects the capacitive component of the stator line current. Resulting changes in wave shapes of the applied voltage have been studied with respect to both the distance of inter-turn faults from line end and reduction in the insulation strength, and hence in the insulation resistance value.

Studies have been conducted by using computer simulation and validated by experiments. There is ample evidence that an impending and progressing inter-turn fault can be identified in adjustable speed drives driven by frequency converters by studying line-end coil-voltage waveforms.

To find an easy and accurate method for evaluating the Pollaczek's integral in earth‐return path impedance calculation.

The Monte Carlo method of evaluating the Pollaczek's integral is introduced.

The Monte Carlo method is easy and accurate method for this computation.

Using proposed method in cases of earth stratification.

The proposed method can be used in power system transient software.

The proposed method introduces a computation method for calculation of Pollaczek's integral which is valuable for power engineers.

THIS article and that published last month taken together are, to some extent, an answer to the one by Mr. T. Kearns published in January, 1945; in which he raised a number of interesting points, some of which were, quite rightly, highly critical of aircraft electrical installations then still in production.

In 1988 the information technology consultancy, Eosys, undertook an extensive programme of research — workshops, case studies, interviews and a great deal of desk research by IT consultants, architects and building services engineers — in an attempt to raise the profile of cabling in the world of the building professional: the results were published in a series of articles in the Architects' Journal.

A chemical plant handling materials that produce corrosive and inflammable vapours is in the design stage. The electrical installation is being planned and advice is required on anti‐corrosion steps for this installation.

Over recent years the concept of structured cabling has become well established and is now being challenged by the requirements of the intelligent building. An intelligent building is one in which the building fabric, space, services and information systems can respond efficiently to the initial and changing demands of the owner, the occupier and the environment. A structured and holistic approach must be used to minimize the cost of ownership and to ensure that the building most aptly meets the needs of the company. Looks at the role of networked systems and cable systems in buildings and identifies the principal characteristics required of them. Discusses some of the latest thinking regarding the integration of these networks and shows a practical arrangement that will achieve this. Also discusses, with examples, the impact that communications infrastructures can have on the usability of a building.

The application of the finite element method for the design and analysis of fabric structures is discussed. The basic concepts are outlined, and illustrated with practical structures designed and analysed with the MARC General Purpose Finite Element Program. Difficulties associated with the strongly anisotropic nature of the fabric are considered and solutions to overcome these problems are offered.

The purpose of this paper is to present the development and implementation of a qualitative, code-compliance framework for property managers of student housing facilities.

The paper identified the fire safety code requirements for student housing facilities and arranged these requirements in the form of a checklist, which was further validated by professional experts. Additionally, the paper presented an IDEF₀ (Integrated Definition for Function Modeling) framework model that illustrates a stepwise process for the deployment of the checklist. A case study was conducted on three similar student housing facilities in a university campus to demonstrate the application of the framework. Furthermore, the findings from the case study were reported along with recommendations to improve the degree of compliance with the requirements of fire safety codes.

The developed framework was validated by professional experts and through a case study. Fire safety provisions were mostly found to be adequate in the case study building. The authors proposed several actions to improve the current status of fire safety in the building.

The paper serves to disseminate awareness about the occurrence of fires, their severe consequences and precautionary measures in student housing facilities. It also provides a standardized checklist for ease of use by property managers who may be unable to understand the technical terminologies found in fire safety codes and standards. Thus, the developed framework is of tangible value to property managers, building specialists and student housing administrators.