EDUCON

By the methods of mathematical modeling with computational experiment, research processes of liquid boiling in complete weightlessness are conducted with the aim to confirm the scientific hypothesis of the existence of non-gravitational mechanisms of a steam bubble separation from the surface of a heater. It is known that in the terrestrial conditions, and in the conditions of reduced intensity of the field of the mass forces, boiling crisis occurs when the intensity of vaporization is so high that the flow of steam impedes the liquid supply to the heater surface. This phenomenon is quantitatively well described by the Kutateladze formula or other formulas that connect critical heat flux with the value of the gravitational acceleration g. The basis of this connection is a Kelvin-Helmholtz instability mechanism (Zuber explanation) within the process of interaction of a vapor domain and a liquid flow, generated by the buoyancy force (the Rayleigh-Taylor instability). In weightlessness conditions Rayleigh-Taylor mechanism of liquid flow formation is absent and for the supply of liquid to the heater surface an inertial motion of liquid, generated by the vapor pressure in the bubble, and pulling the bubble away from the heating surface, becomes responsible. It is shown that in the reduced gravity conditions with a decrease in intensity of the field of the mass forces, the role of inertial forces caused by the vapor pressure of the bubble increases. Confirmation of the hypothesis opens the possibility of realization of bubble boiling condition in complete weightlessness and the possibility of an effective heat exchange devices for the space flight conditions, based on phase transitions, development.

In our present times the quality of service is beyond any doubt the most significant category in the banking sector. Focus on consumers, i.e. clients over the last few years is experiencing an expansion in the services oriented activities especially in banks. The needs of users of financial services have also experienced a dynamic change and it is necessary for the banks to develop their long-term business relationship with their clients, in order to satisfy their needs and render their own business profitable. In addition, a robust competition prevails on the banking market, and very often quality of service appears to be the competitive advantage of a bank. One of the ways to measure quality of service is also its mystery shopping. Mystery shopping is measuring the conduct of staff employed in an organisation. Bank employees are being judged during their service offering interaction. Staff employed is also the first link in the chain of communication between the client and the bank. The paper is based on the presentation of the manner in which the mystery shopping is conducted in banks, and also on the presentation of results of the mystery shopping in the major banks operating in Novi Sad. The objective of this research work is to present the significance that the mystery shopping has in banks, and the problem thus resolved is the quality of services offered in banks. Methodology applied was interviewing of the staff employed, and the research and analysis of the internal materials received from banks. We are pointing out, based on the result obtained from the research, at the ways in which mystery shopping is affecting satisfaction of clients, and the ways in which through mystery shopping the high quality of service can be achieved, the one that is beyond expectations in the banking sector. Emphasis is also made at the importance that the human factor has, i.e. staff employed as an important category in measuring quality of service offered in the banking sector. Research disclosed also the steps that should be applied in order to render mystery shopping more effective. Further research that could be conducted from the above mentioned are the financial indicators of the quality of service before the application of the mystery shopping tool and after its implementation.

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2002Determination of ground water salinity from time‐domain electromagnetic soundings, Hermosillo, MexicoAuthors: Jaime Ruíz ReyesCarlos Pita de La PazAlan T. HerringJaime Ruíz ReyesConsultores en Ingenieria Geofisica, Carlos Pita de La PazConsultores en Ingenieria Geofisica, and Alan T. HerringEDCONhttps://doi.org/10.1190/1.1816978 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1816978FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2002ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2002 Pages: 2478 publication data© 2002 Copyright © 2002 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 03 Jan 2005 CITATION INFORMATION Jaime Ruíz Reyes, Carlos Pita de La Paz, and Alan T. Herring, (2002), "Determination of ground water salinity from time‐domain electromagnetic soundings, Hermosillo, Mexico," SEG Technical Program Expanded Abstracts : 1602-1605. https://doi.org/10.1190/1.1816978 Plain-Language Summary PDF DownloadLoading ...