Browsing School of Applied Technology and Management by Issue Date
Now showing 1 - 20 of 139
Results Per Page
Item Open AccessTask allocation onto a hypercube by recursive mincut bipartitioning(Elsevier, 1990) Ercal, F.; Ramanujam, J.; Sadayappan, P.An efficient recursive task allocation scheme, based on the Kernighan-Lin mincut bisection heuristic, is proposed for the effective mapping of tasks of a parallel program onto a hypercube parallel computer. It is evaluated by comparison with an adaptive, scaled simulated annealing method. The recursive allocation scheme is shown to be effective on a number of large test task graphs-its solution quality is nearly as good as that produced by simulated annealing, and its computation time is several orders of magnitude less Item Open AccessStandard conformance test specification language TTCN(Elsevier, 1992) Sarikaya, B.; Wiles, A.The International Standards Organization (ISO) has defined a protocol test language called TTCN (Tree and Tabular Combined Notation) to specify abstract test suites for Open Systems Interconnection (OSI) protocols. TTCN combines a tree notation for dynamic behaviour description with a tabular representation of various language constructs. TTCN allows tabular constraints to enforce values on the Abstract Service Primitive (ASP) or Protocol Data Unit (PDU) parameters. For application layer protocols, Abstract Syntax Notation One (ASN.1) constraints are used. Dynamic behaviour description in TTCN is shown to address many important aspects of conformance testing such as modularity support in terms of test cases, steps and default behaviour tables and sophisticated timer management. TTCN has a machine processable form called TTCN-MP that defines all the TTCN syntax using BNF. Semantics of the tests specified in TTCN is operationally defined rendering TTCN almost a formal notation. © 1992. Item Open AccessAn animation system for rigid and deformable models(1993) Güdükbay, Uğur; Özgüç, B.; Tokad, Y.; Güdükbay, UğurWe describe a system for the animation of rigid and deformable models. The system uses the approaches from elasticity theory for animating the models. Two different formulations, namely the primal and the hybrid formulations, are implemented so that the user could select the suitable one for an animation depending on the rigidity of the models. Collision of the models with impenetrable obstacles and constraining model points to fixed positions in space are implemented for use in the animations. Item Open AccessComputer aided frequency planning for the radio and TV broadcasts(Institute of Electrical and Electronics Engineers, 1996-06) Altıntaş, Ayhan; Ocalı, O.; Topçu, Satılmış; Tanyer, S. G.; Köymen, Hayrettin; Altıntaş, Ayhan; Ocalı, O.; Topçu, Satılmış; Köymen, HayrettinThe frequency planning of the VHF and UHF broadcasts in Turkey is described. This planning is done with the aid of computer databases and digital terrain map. The frequency offset is applied whenever applicable to increase the channel capacity. The offset assignment is done through simulated annealing algorithm. The international rules and regulations concerning Turkey are also considered. Item Open AccessImpact of centralised istructional supervision on teachers: a case study of a private secondary school in Turkey(University of Malta * Faculty of Education, 2000) Collins, A. B.Examined implementation of centralized instructional supervision at a private Turkish secondary school, exploring administrators', department heads', and teachers' perceptions of this system's impact on all aspects of education. Results show that the system has deficiencies due to its judgmental, subjective nature and lack of adequate inspectors. It is considered an administrative assessment and does not provide formative support to teachers. Item Open AccessElectronic excited states of the CP29 antenna complex of green plants: a model based on exciton calculations(Springer / Kluwer Academic Publishers, 2000) İşerı, E. İ.; Albayrak, D.; Gülen, D.We have suggested a model for the electronic excited states of the minor plant antenna, CP29, by incorporating a considerable part of the current information offered by structure determination, site-directed mutagenesis, and spectroscopy in the modeling. We have assumed that the electronic excited states of the complex have been decided by the chlorophyll-chlorophyll (Chl) and Chl-protein interactions and have modeled the Coulombic interaction between a pair of Chls in the point-dipole approximation and the Chl-protein interactions are treated as empirical fit parameters. We have suggested the Qy dipole moment orientations and the site energies for all the chlorophylls in the complex through a simultaneous simulation of the absorption and linear dichroism spectra. The assignments proposed have been discussed to yield a satisfactory reproduction of all prominent features of the absorption, linear and circular dichroism spectra as well as the key spectral and temporal characteristics of the energy transfer processes among the chlorophylls. The orientations and the spectral assignments obtained by relatively simple exciton calculations have been necessary to provide a good point of departure for more detailed treatments of structure-function relationship in CP29. Moreover, it has been discussed that the CP29 model suggested can guide the studies for a better understanding of the structure-function relationship in the major plant antenna, LHCII. Item Open AccessLimits to community participation in the tourism development process in developing countries(Pergamon Press, 2000-12) Tosun, C.This study deals with a normative concept of participatory development approach, which originates in the developed world. In particular, it analyses and explains the limitations to the participatory tourism development approach in the context of developing countries. It was found that there are operational, structural and cultural limits to community participation in the TDP in many developing countries although they do not equally exist in every tourist destination. Moreover, while these limits tend to exhibit higher intensity and greater persistence in the developing world than in the developed world, they appear to be a reflection of prevailing socio-political, economic and cultural structure in many developing countries. On the other hand, it was also found that although these limitations may vary over time according to types, scale and levels of tourism development, the market served, and cultural attributes of local communities, forms and scale of tourism developed are beyond the control of local communities. It concludes that formulating and implementing the participatory tourism development approach requires a total change in socio-political, legal, administrative and economic structure of many developing countries, for which hard political choices and logical decisions based on cumbersome social, economic and environmental trade-offs are sine qua non alongside deliberate help, collaboration and co-operation of major international donor agencies, NGOs, international tour operators and multinational companies. (C) 2000 Elsevier Science Ltd. All rights reserved. Item Open AccessPay-back; can students evaluate their instructors: dilemmas and problems.(John Wiley & Sons, Inc., 2001) Collins, A. B. Item Open AccessGateway to the real world, industrial training: dilemmas and problems(Pergamon Press, 2001-02) Collins, A. B.In today's competitive society, students are faced with a selective job market which places premium on experience. Hands-on experience cannot be imparted through lectures. It can only be gained through direct activity, either laboratory or real world confrontation. Laboratory learning is clinical, whereas, real-world confrontation, known as industrial training or internship, affords students a first hand glimpse of reality. There is no substitution for the "sting of battle". This paper examines stakeholders' reactions to the university level "industrial training" program and its success in providing a realistic workplace experience. The study examined the structure of the "industrial training system" (ITS), its strengths and weaknesses, and what can be done to improve the system. (C) 2001 Elsevier Science Ltd. All rights reserved. Item Open AccessFocusing on evaluation of teacher development? a model for school-based supervision(Türk Eğitim Derneği İktisadi İşletmesi, 2002) Baş-Collins, Ayşe; Baş-Collins, Ayşell aspects of work, and even play, require an allusive entity called supervision. Supervision models vary from loosely organized structures, to strict activity overview. The 'instructional supervisory role" may be one or several individuals, working to assist school personnel to perform better. They may be from outside the school (ie. national inspection system) or the principal or department head or senior instructor. As in other countries, Turkey has private and state schools. Both are subject to regular inspection by a centralised National Inspection System. However, in order to overcome shortfalls of the National Inspection System, private schools have established their own teacher evaluation programs. This paper assesses current private school-based supervision practices. It is intended to provide a school-based supervision model, through which private secondary schools may improve their performance and accountability while enhancing teacher quality. Item Open AccessDoes a school make a difference? perceptions of an ‘effective school’(Sage Publications Ltd., 2002) Collins, A. B.This article examines perceptions of an effective school considering relevant literature, teachers’, administrators’ and students’ judgments. It discusses effectiveness as it applies to private school systems operating in Turkey. It gives abridged aspects of the current Turkish Education System: state; and private. This perception, Eastern European, Quasi-Mediterranean, draws commonalities with Western systems lying groundwork for comparisons of universal problems faced by educators. The study employed qualitative case study methods and procedures. Data were collected through interview schedules, document analysis and observation notes. Results show that the subjects perceive ‘effective school’ qualities as being school leadership, school culture/climate and quality human resources. Commonality can be found between the situation presented here and other developing school systems. Item Open AccessSchool-based supervision at a private Turkish school: a model for improving teacher evaluation(Taylor & Francis Inc., 2002) Collins, A. B.All aspects of work, and even play, require an allusive entity called supervision. Supervision models vary from loosely organized structures to strict activity overview. The `instructional supervisory role' may be performed by one or several individuals from within or without the school, all working to assist school personnel improve their performance (for example, employees from the National Inspection System). As in other countries, Turkey has private and state schools. Both are subject to regular inspection by a centralized National Inspection System. However, in order to overcome shortfalls of the National Inspection System, private schools have had to establish internal teacher evaluation programs. The purpose of this paper is to assess current school-based supervision practices in one private school. It is intended to provide a school-based supervision model through which private secondary schools may improve their performance, accountability, and enhance teacher quality. Item Open AccessÜniversite öğrencileri öğretim elemanlarının başarısını değerlendirebilir mi? ikilemler ve problemler(Ankara Üniversitesi Eğitim Bilimleri Fakültesi, 2002) Collins-Baş, Ayşe; Collins-Baş, AyşeÖğrencilerin öğretim elemanlarını değerlendirmesi (ÖÖED) üniversite düzeyinde bir eğitim kurumunun başarısının değerlendirilmesi alanında en yaygın ve etkin yöntemlerden birisidir (Seldin, 1984). ÖÖED yöntemi öğretim elemanlarının etkinliği konusunda öncelikli bir bilgi kaynağıdır ve bu bilgi eğitim kurumları tarafından hem “biçimlendirici” (formative-öğretim elemanının kendi performansını geliştirmesi) hem de “düzey belirleyici” (summative-öğretim elemanlarının bulundukları konumu korumaları, terfileri ve kıdemleri için) olarak kullanılabilir. Eğer bir üniversite sistemi profesyonel anlamda büyüyecek ise, ne değerlendirmeden kaçabilir ne de toplumun, kullanılan öğretim yöntem ve tekniklerini yargılamadan kabullenmesini bekleyebilir. İnsan öğesi söz konusu olunca belirsizlik kaçınılmazdır. Bu bağlamda kullanılan yöntemin aşamalı olarak gözden geçirilmesi “güvenilirlik” ve “geçerlilik” sağlar (Centra, 1993). Birkaç yöntemin bir arada kullanılması ve bu yöntemlerden birinin ÖÖED olması daha sağlıklıdır. Bu araştırmanın amacı ÖÖED sistemini üniversite ortamında öğrencilerin ve öğretim elemanlarının bakış açılarından incelemektir. Araştırmada hem “nicel” hem de “nitel” araştırma yöntemleri kullanılmıştır. Araştırmanın sonuçları, her ne kadar şu anda kullanılan ÖÖED sisteminin güçlü ve zayıf yanları olduğunu gösterse de, yeterli “ön bilgilendirme” ve “yönlendirme” ile sistemin üniversite, öğretim elemanları ve öğrenciler için daha “yapıcı” ve “etkin” hale gelebilecegini göstermektedir. Item Open AccessAre we teaching what we should? dilemmas and problems in tourism and hotel management education(Cognizant Communication Corporation, 2002) Collins, A. B.There is a growing demand for professionally educated and trained staff in the Tourism and Hotel Management (THM) sector as the whole industry attempts to meet expanded consumer wants and desires. This article examines the relevance of THM education from stakeholders' perspectives, namely, the THM sector, the current and graduate THM students. The following research questions were posed: 1) What are the sector representatives' perceptions regarding the effectiveness of tourism education? 2) What are the current and graduate students' perceptions regarding the effectiveness of tourism education? and 3) What recommendations can be made to improve the system? Both quantitative and qualitative methods were employed in the study. Results showed that there was an expanding need for university recognition of specialization due to new technologies and consumer maturation. Likewise, the need for an improved mix between the academic and practical experience and second language inadequacies were highlighted by joint concerns expressed by the sector representatives and the graduate students. Item Open AccessThe effect of incentives in web surveys: application and ethical considerations(Sage Publications Ltd., 2003) Cobanoglu, C.; Cobanoglu, N.Although researchers use internet-based surveys more often than ever in their research, there is little research on the effect of incentives on response rate, speed and cost. This study attempts to fill in some of the blanks by comparing the different incentives offered to respondents of web-based surveys. The results indicate that offering a luggage tag to each respondent and including them in a draw for a bigger value prize (a personal digital assistant) yields the highest response rate. In terms of response speed, there are no significant differences among each incentive group. The most expensive group in terms of costs was the combination of luggage tag and prize draw. Item Open AccessA method of systematic search for optimal multipliers in congruential random number generators(Springer Netherlands, 2004) Sezgin, F.This paper presents a method of systematic search for optimal multipliers for congruential random number generators. The word-size of computers is a limiting factor for development of random numbers. The generators for computers up to 32 bit word-size are already investigated in detail by several authors. Some partial works are also carried out for moduli of 248 and higher sizes. Rapid advances in computer technology introduced recently 64 bit architecture in computers. There are considerable efforts to provide appropriate parameters for 64 and 128 bit moduli. Although combined generators are equivalent to huge modulus linear congruential generators, for computational efficiency, it is still advisable to choose the maximum moduli for the component generators. Due to enormous computational price of present algorithms, there is a great need for guidelines and rules for systematic search techniques. Here we propose a search method which provides 'fertile' areas of multipliers of perfect quality for spectral test in two dimensions. The method may be generalized to higher dimensions. Since figures of merit are extremely variable in dimensions higher than two, it is possible to find similar intervals if the modulus is very large. Item Open AccessTeacher performance evaluation: a stressful experience from a private secondary school(Routledge, 2004) Collins, A. B.The study examines aspects of centralized and school-based supervision (SBS) as carried out at a private secondary school. Data were gathered from administrators, teachers and students through interviews, critical incidents and pertinent documentation. The study points out that a combination of the two supervision systems offers benefits that a single, stand-alone system cannot, while highlighting the problems and the dilemma teachers find themselves in when faced with two systems of a summative nature. The study concludes that centralized and SBS can co-exist. They, however, must complement each other, not duplicate functions. Item Open AccessThe relationship between destination performance, overall satisfaction, and behavioral intention for distinct segments(Routledge, 2004) Baloglu, S.; Pekcan, A.; Chen, S.; Santos, J.Destination performance, visitor satisfaction, and favorable future behavior of visitors are key determinants of destination competitiveness. Most empirical work, assuming that overall tourist population is homogenous, investigates the relationships among product performance, satisfaction, and/or behavioral intentions in an aggregated manner. This study investigates these linkages for different segments of Canadian visitors of Las Vegas. The findings confirmed the mediating role of overall satisfaction for both segments and aggregated sample, and revealed variations in linkages and explanatory power of the models. The study concludes that the segment-based approach is more pragmatic because it provides segment-specific implications for destination management and marketing.