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In recent years, evolutionary and meta-heuristic algorithms have been extensively used as search and optimization tools in various problem domains, including science, commerce, and engineering. Ease of use, broad applicability, and global perspective may be considered as the primary reason for their success. The honey-bee mating process has been considered as a typical swarm-based approach to optimization, in which the search algorithm is inspired by the process of real honey-bee mating. In this paper, the honey-bee mating optimization (HBMO) algorithm is presented and tested with a nonlinear, continuous constrained problem with continuous decision and state variables to demonstrate the efficiency of the algorithm in handling the single reservoir operation optimization problems. It is shown that the performance of the model is quite comparable with the results of the well-developed traditional linear programming (LP) solvers such as LINGO 8.0. Results obtained are quite promising and compare well with the final results of the other approach. 相似文献
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Legislative activity and controversy concerning the issue ofhomosexual rights and practices has intensified in Britain overthe last decade. Despite this increase in intensity, however,the question of mass public opinion in relation to homosexualrights and practices has received little empirical investigation.In an effort to remedy this situation, this paper focuses onthe influence of party identification in determining publicattitudes towards homosexuals. Using data from the British SocialAttitudes Surveys, the results suggest that although party identificationexerts an independent and statistically significant effect onattitudes towards homosexuals, in all cases, however, theseeffects are both secondary and variable. Other equally, if notmore salient, determinants include: gender, education, age,occupation, and type of homosexual relationship. Of these varioussociodemographic variables, both age and education standout as having the strongest and most consistent effect. In otherwords, at least as far as current British society is concerned,anti-homosexual views are most prevalent among both older individualsas well as the lesser educated. 相似文献
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In this study, we investigated trunk coordination during rate-controlled bipedal vertical dance jumps. The aims of the study were to investigate the pattern of coordination and the magnitude of coordination variability within jump phases and relative to phase-defining events during the jump. Lumbar and thoracic kinematics were collected from seven dancers during a series of jumps at 95 beats per minute. The vector coding technique was used to quantify the pattern and variability of trunk coordination. Coordination was predominantly anti-phase during propulsion and landing. Mean coordination variability peaked just before the landing phase and at the transition from landing to propulsion phases, and was lowest during the propulsion phase just before toe-off. The results indicate that peaks in variability could be explained by task and phase-specific biomechanical demands. 相似文献
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The identity work engaged in by Indigenous teachers1 in school settings is highlighted in a study of Australian Indigenous teachers. The construction of identity in home and community relationships intersects with and can counteract the take up of a preferred identity in the workplace. In this paper we analyse data from interviews with Indigenous teachers, exploring the interplay between culture and identity. We foreground the binary nature of racial assignment in schools, demonstrate how this offers contradictory constructions of identity for Indigenous teachers, and note the effects of history, culture and location in the process of forming a teaching ‘self’. 相似文献
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A. Cristóvão P. Ferrão R. Madeira M.L. Tibério M.J. Raínho M.S. Teixeira 《The Journal of Agricultural Education and Extension》2013,19(2):191-203
Abstract
Purpose
Information technology (IT) has tremendous potential for fostering grassroots development and the Indian government has created various capital-intensive computer networks to promote agricultural development. However, research studies have shown that information technology investments are not always translated into productivity gains due to poor computer use by employees. In this context, a research investigation was conducted to develop a Computer Utilization Model that explains how individual and organizational factors influence computer utilization in extension organizations in India. 相似文献69.
This paper reports on an evaluation of a drama‐based Healthy Relationships programme on domestic violence delivered on a pilot basis to Year 8 pupils. The programme included a play delivered by a local theatre‐in‐education company followed by a series of weekly workshops. Eighty‐five pupils in a secondary school located in an area with high rates of social exclusion participated in the programme and the evaluation. Pupils completed questionnaires immediately before and after the programme and one year after the programme had finished. Thirteen pupils also took part in gendered discussion groups, which considered their views and opinions concerning the play and the workshops. The evaluation indicated that the programme was successful in enhancing pupils' understandings of domestic violence up to one year after delivery. Pupils responded well to the use of drama as a medium for learning, and some young people were able to demonstrate that they had developed positive ideas about healthy relationships. However, there was evidence of uncertainly for some young people with regard to the gendered nature of domestic violence following the programme. The discussion highlights this issue and identifies additional recommendations for both future research and future programmes. 相似文献
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