Search results

1 – 10 of over 17000
To view the access options for this content please click here
Article
Publication date: 1 June 2000

George K. Chako

Briefly reviews previous literature by the author before presenting an original 12 step system integration protocol designed to ensure the success of companies or…

Abstract

Briefly reviews previous literature by the author before presenting an original 12 step system integration protocol designed to ensure the success of companies or countries in their efforts to develop and market new products. Looks at the issues from different strategic levels such as corporate, international, military and economic. Presents 31 case studies, including the success of Japan in microchips to the failure of Xerox to sell its invention of the Alto personal computer 3 years before Apple: from the success in DNA and Superconductor research to the success of Sunbeam in inventing and marketing food processors: and from the daring invention and production of atomic energy for survival to the successes of sewing machine inventor Howe in co‐operating on patents to compete in markets. Includes 306 questions and answers in order to qualify concepts introduced.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 12 no. 2/3
Type: Research Article
ISSN: 1355-5855

Keywords

To view the access options for this content please click here
Article
Publication date: 1 June 1994

Bill Greeves

Describes how radio telemetry can interface with process control systemssuch as supervisory control and data acquisition [SCADA] and distributedcontrol systems [DCS…

Abstract

Describes how radio telemetry can interface with process control systems such as supervisory control and data acquisition [SCADA] and distributed control systems [DCS] greatly increasing their power and efficiency. Outlines the basis of radio telemetry, the behaviour of electromagnetic waves, frequency and wavelengths. Uses the water industry as an example of the use of a large scale and sophisticated SCADA system to provide date collection and control links over a large area. Concludes that the versatility of radio telemetry coupled with its cost‐effectiveness means that this technology can help to expand and improve communications in an increasing number of industries.

Details

Sensor Review, vol. 14 no. 2
Type: Research Article
ISSN: 0260-2288

Keywords

To view the access options for this content please click here
Article
Publication date: 7 November 2008

Matthew L. Collins and Naim Kapucu

The aim of this research is to better inform public policy makers and the disaster management community about the use of early warning systems. The central research…

Abstract

Purpose

The aim of this research is to better inform public policy makers and the disaster management community about the use of early warning systems. The central research question of this article is how local governments should provide early warning to the citizenry of impending tornado danger.

Design/methodology/approach

The main objectives of the paper were achieved by reviewing the literature on early warning systems for tornadoes and by conducting a content analysis of news reports, from the Orlando Sentinel newspaper, which identified the most cost‐effective early warning system for tornadoes. The theoretical approach of the paper covered the responses, results, and recommendations themes from the disaster management early warning system literature.

Findings

The study concludes with a disaster management policy recommendation for an early warning system for tornadoes for local government. The paper's recommendation is to utilize the cost‐effective NOAA weather radios to alert the citizenry of impending tornado danger. This recommendation is also generalizable to early warning systems for hurricanes, flash flooding, terrorist attacks, and other major natural and man‐made disasters.

Research limitations/implications

A research limitation is that the paper focuses on Central Florida. Future research could begin with the paper's findings and generalize these findings to other areas internationally.

Practical implications

The paper will better inform governmental policy makers and members of the disaster management community about the early warning system alternatives available to warn the citizenry of impending tornado danger. It will hopefully begin a dialogue among disaster management practitioners and academics about early warning systems for tornadoes.

Originality/value

The paper fills a gap in the tornado early warning system literature. Heretofore, there has been little writing, which this paper reviews, that compares early warning systems for tornadoes. However, the original value of the paper is that it specifically focuses on the instrument of warning the citizenry of tornadoes, the time of day of the tornado event, and the life‐saving effects of tornado warnings. The value of the paper will be to public policy makers world‐wide and to the growing disaster management community.

Details

Disaster Prevention and Management: An International Journal, vol. 17 no. 5
Type: Research Article
ISSN: 0965-3562

Keywords

To view the access options for this content please click here
Article
Publication date: 1 December 2002

Kit‐Fai Pun, Kwai‐Sang Chin, Man‐Fai Chow and Henry C.W. Lau

This paper reviews the basic concepts of several maintenance approaches and discusses the increasing needs of effectiveness‐centred maintenance (ECM). It discusses the…

Abstract

This paper reviews the basic concepts of several maintenance approaches and discusses the increasing needs of effectiveness‐centred maintenance (ECM). It discusses the principles and relates them to the measurement of ECM performance. The development and implementation of the ECM approach is elaborated based on a pilot program in the radio unit of an electricity company in Hong Kong. Two ECM performance indices (i.e. individual system effectiveness (ISE) and overall system effectiveness (OSE)) were introduced to monitor the ECM process in the company. Being an integrated maintenance approach, ECM focuses on system functions and customer service, and may contribute to the continuous improvement of maintenance management practices in organizations irrespective of their business nature and size.

Details

Journal of Quality in Maintenance Engineering, vol. 8 no. 4
Type: Research Article
ISSN: 1355-2511

Keywords

To view the access options for this content please click here
Article
Publication date: 1 February 1988

Larry L. Learn

This article provides a broad overview of telecommunications and network‐related technologies. Topics covered include identification and review of network elements, analog…

Abstract

This article provides a broad overview of telecommunications and network‐related technologies. Topics covered include identification and review of network elements, analog and digital signals, synchronous and asynchronous transmission formats, transmission media and equipment, transmission techniques and characteristics, multiplexing, network types, access technologies, network architectures and topologies, local‐area network technologies and attributes, protocols and protocol issues, gateways, internetworking, local networking alternatives, equipment certification, and various aspects of network management. It is intended to provide the practicing professional in the field of library and information science with a broad, up‐to‐date technical review that might serve to support and facilitate further investigation of current developments in networks and networking. Although the broad range of topics is not treated in depth, numerous references are provided for further investigation.

Details

Library Hi Tech, vol. 6 no. 2
Type: Research Article
ISSN: 0737-8831

To view the access options for this content please click here
Article
Publication date: 1 February 2004

Chingiz Hajiyev and Remzi Saltoglu

In this study, the integrated navigation system, consisting of radio and inertial navigation system (INS) altimeters, is presented. INS and the radio altimeter have…

Abstract

In this study, the integrated navigation system, consisting of radio and inertial navigation system (INS) altimeters, is presented. INS and the radio altimeter have different benefits and drawbacks. The integration is achieved by using an indirect Kalman filter. Hereby, the error models of the navigators are used by the Kalman filter to estimate vertical channel parameters of the navigation system. In the open loop system, INS is the main source of information, and radio altimeter provides discrete aiding data to support the estimations. At the next step of the study, in case of abrupt faults, the performance of the integrated system is examined. The optimal Kalman filter reacts with abnormal estimates to this situation as expected. To recover such a possible malfunctioning, the robust Kalman filter algorithm is suggested.

Details

Aircraft Engineering and Aerospace Technology, vol. 76 no. 1
Type: Research Article
ISSN: 0002-2667

Keywords

To view the access options for this content please click here
Article
Publication date: 1 January 1962

K. Fearnside

AT the present day the operations of civil transport aeroplanes are severely restricted under conditions of poor visibility and not infrequently flights have to be…

Abstract

AT the present day the operations of civil transport aeroplanes are severely restricted under conditions of poor visibility and not infrequently flights have to be diverted or cancelled. The work of the Blind Landing Experimental Unit of the Ministry of Aviation in the development of a system of automatic landing for military aircraft has been described elsewhere.1 A flight control system is described in this paper, which given the necessary azimuth guidance signals from ground based installations, will extend the advantages of automatic landings into the civil field.

Details

Aircraft Engineering and Aerospace Technology, vol. 34 no. 1
Type: Research Article
ISSN: 0002-2667

To view the access options for this content please click here
Article
Publication date: 1 April 1993

Clifford Harkness

This paper will discuss the development of an information management system providing access to radio archive material. A formal television and radio archive agreement…

Abstract

This paper will discuss the development of an information management system providing access to radio archive material. A formal television and radio archive agreement between the BBC in Northern Ireland and the Ulster Folk and Transport Museum in 1989 led to the decision to use STATUS for the management of the radio archive. An example of the record structure is given and some details of ways of searching.

Details

Program, vol. 27 no. 4
Type: Research Article
ISSN: 0033-0337

To view the access options for this content please click here
Article
Publication date: 1 December 1999

Belarmino Adenso‐Díaz and Fernando Gascón

In spite of the wide experience already developed in the field of internal logistics using radio frequency, many companies are wary of its implantation due to the fact…

Abstract

In spite of the wide experience already developed in the field of internal logistics using radio frequency, many companies are wary of its implantation due to the fact that the benefits of this technology are not easily quantifiable in most cases. Develops a detailed discounted payback analysis of the cash flows associated with the implementation of radio frequency, presenting a table with the needed payback periods depending on the size of the warehouse.

Details

International Journal of Physical Distribution & Logistics Management, vol. 29 no. 10
Type: Research Article
ISSN: 0960-0035

Keywords

To view the access options for this content please click here
Article
Publication date: 16 October 2009

David Sanders

The purpose of this paper is to investigate the effect of time delay on the ability of a human operator to complete a task with a teleoperated mobile‐robot using two…

Abstract

Purpose

The purpose of this paper is to investigate the effect of time delay on the ability of a human operator to complete a task with a teleoperated mobile‐robot using two systems, two different ways of interacting with the mobile‐robots and several different environments.

Design/methodology/approach

Teleoperators are observed completing a series of tasks using a joystick to control a mobile‐robot while time delays are introduced to the system. They sit at a computer and view scenes remotely on a screen. Cameras are either mounted on the robot or mounted externally so that they view both the environment and robot. Teleoperators complete the tests both with and without sensors. One robot system uses an umbilical cable and one uses a radio link.

Findings

In simple environments, a teleoperator may perform better without a sensor system to assist them but as time delays are introduced then there are more failures. In more complicated environments or when time delays are longer, then teleoperators perform better with a sensor system to assist. Teleoperators may also tend to perform better with a radio link than with an umbilical connection.

Research limitations/implications

Teleoperated systems rely heavily on visual feedback and experienced operators. This paper investigates the effect of introducing a delay to the delivery of that visual feedback.

Practical implications

The paper suggests that in simple environments with short time delays then the amount of sensor support should be small but in more complicated environments or with longer delays then more sensor support needs to be provided.

Originality/value

Results from imposing time delays on a teleoperated mobile‐robot are presented. Effects on the task of different ways of viewing activity on a computer display are presented, that is with cameras mounted on the robot or cameras mounted externally to view both the environment and robot. Results from using sensors to assist teleoperators are presented. The paper suggests that the amount of sensor support should be varied depending on circumstances.

Details

Industrial Robot: An International Journal, vol. 36 no. 6
Type: Research Article
ISSN: 0143-991X

Keywords

1 – 10 of over 17000