Simulation results are presented to study the performance of improved emitter transit time using AlGaAs-GaInP composite emitter heterojunction bipolar transistor (HBT). This composite emitter HBT shows significant reduction of emitter- base capacitance CBE and improved high frequency performance. In our simulation we use Medici (2-D simulator) as a simulator. The composite emitter HBT has been compared with the conventional HBT. Results show superior performance of the composite emitter design over conventional one in terms of reduced CBE. The CBE achieved with the composite emitter design was 55% lower compared to conventional designs. However, there are no variations with the collector current which provides enhanced frequency response for a composite emitter design.
We have proposed the combining evaluation method of grey relational analysis and AHP method, and apply it to the destruction evaluation of airport target. It uses reciprocal judgment matrix to confirm the element weight of scheme measure hierarchy and introduce the triangular fuzzy number complementary judgment matrix to confirm the element weight of rule hierarchy. The evaluation and comprehensive computation results show that the combining scheme is feasible.
Subject choice, work overload and work stress influence personal and professional lives of higher education teachers. Though the majority of higher education teachers in the Gulf Cooperation Council (GCC) countries are expatriates, yet research on expatriate higher education teachers working in the GCC countries is limited. This paper presents one part of the work life balance survey and focuses on the influence of subject choice, work overload and work stress on higher education teachers in the GCC countries.
The issue of sexist language has been debated within feminist circles since the 1960s. The concern to change language which discriminated against women has been a key concern for feminist theorists and activists, trying to change the way women were represented in different Medias like TV, advertisements, newspapers and magazines, or in literature and also the way that they were named and addressed in texts and in interaction. Sexism is still a form of language use which affects conversations, one’s views of other people and one’s own place within society. In this article, I am concerned with the description of structures in language which seem to determine that terms associated with gender will acquire particular types of meanings in such a way that those terms associated with women will take on a range of clearly identifiable connotations. Social labeling practices offer a window on the construction of gendered identities and social relations. I will examine metaphor and metonymy as two dominant figures in construction of gender through language.
This study was carried out to investigate the ameliorative effect of vitamin C on serum liver enzymes in lead-induced toxicity in wistar rats. Twenty (20) male rats were used for the experiment. Group 1 was administered distilled water , Group II was administered vitamin C 100mg/kg b w, Group III was administered lead 250mg/kg b w, Group IV was administered vitamin (100mg/kg) and 30minutes later was administered lead (250mg/kg). Animals were exposed to treatments once daily for 28 days. After the last day of treatment animals were sacrificed and blood samples collected by cardiac puncture and serum separated for serum liver enzymes analysis. Results obtained in this present study revealed no statistically significant change (p>0.05) on the weight of the liver tissue treated with lead only and lead and vitamin C treated groups when compared to normal saline and vitamin C treated group. The result also showed a significantly reduced serum concentration of aspartate aminotransferase, alanine transferase and alkaline phosphatise in groups treated with lead only when compared to normal and vitamin C treated only. However, co-administration of lead and vitamin C resulted to a significantly elevation of these enzymes. It is concluded that the decrease in ALT, AST and ALP were ameliorated by the administration of vitamin C which may be due to its antioxidant properties
In this paper we propose novel technique to solve the ill-conditioned system of linear equations Ax = b. For given a matrix, we find two invertible diagonal matrices and by Simulated Annealing method, such that
( denoting the set of all diagonal matrices) relative to a given matrix norm. With this step carried out, the solution of the system is effected by solving the system and then calculating .
Exploration of the Gap between Business Management Curriculum and Employability Requirements: A Study of Curriculum Designers and Recruiters’ Perceptions
Abstract – This paper aims to explore the perceptions of curriculum designers and recruiters toward why the gap exists between business management curriculum at university and employability requirements of banking industry in Cambodia. Qualitative approach with specific design of exploratory case study was employed to investigate the problem. Data was extracted from documents, observations and structure interviews with 6 respondents (2 curriculum designers, 4 recruiters). Data was classified into categories (1) perception of curriculum designers and (2) perception of recruiters, and directly analyzed followed a model of Creswell (2007). This study identified the gap exists due to four main factors (1) loose enforcement of educational policy and law on nurturing relationship between university and industry in developing curriculum, (2) misperception among university and industry toward skills development, (3) scarcity of resources in implementing business management curriculum, and (4) information gap between university and industry to develop and update business management curriculum. With such obvious evidences, several implications and suggestions have been made to the government, line ministries, universities, industries and students for further study of business management curriculum and its challenges so that they can design compatible curriculum to develop knowledge and skills for the national, regional and global skill standards.
Key Words: Gap, Business Management Curriculum, Employability Requirement, Industry
The generation extinction time and the estimation of the mean using Monte Carlo method in Galton-Watson geometric offspring distribution
One of interesting matter issues in branching process is the computation of probability and the time of process generation extinction. In this article we initially obtain the time of process extinction with this assumption that the offspring distribution is geometric. Since this distribution depends on the mean of offspring, eventually we represent estimation for the mean by Monte-Carlo Method.