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1.
INTRODUCTION Recently, more and more investigations have been conducted on multilayer piezoelectric media. Kharouf and Heyliger (1994) and Heyliger and Ra- mirez (2000) dealt with the free vibration problems of laminated piezoelectric cylinders and discs, respec- tively. Chen (2000) considered the free vibration of (multilayer) nonhomogeneous piezoceramic hollow spheres by employing a separation formulation for displacements. Chen (2001) developed a state-space method for free vibration … 相似文献
2.
"The Harvard Law School faculty has voted unanimously(全体一致地) to overhaul(检查) its first-year curriculum by focusing more on complex problem-solving, international law, and modern law-making by government bodies and administrative agencies, marking a 相似文献
3.
Fast food, a mainstay of American eating for decades, may have reached a plateau in the United States as the maturing baby-boom generation looks for a more varied menu.Fast food still represents a $102 billion a year industry, but growth has turned sluggish recently amid tough competition from retail food stores and a more affluent (富裕的) population willing to try new things and spend more, analysts say.Signs of trouble in fast food include price-cutting by industry leaders, including efforts by McDonald's to attract customers with a 55-cent hamburger, and major players pulling out or selling. O'Pepsico, for example, is selling its fast-food restaurant division that includes Taco Bell, Pizza Hut and KFC. 相似文献
4.
雷玉勇 《重庆大学学报(英文版)》2003,2(1)
1. Introduction With the development of transportation, more and more road tunnels, especially the long tunnels, such as Erlangshan Tunnel (4176 m, China), Arlberg Tunnel (13972 m, Austria), Kan-etsu Tunnel (11055 m, South tube, Japan) and Laerdal Tunnel (24510m, Norway) have been built on the highway lines [1]. In a road tunnel, the exhaust gases given off by automobile engines, such as smoke, carbon monoxide (CO), oxynitride (NOx), hydrocarbon, etc., and dust produced by the passing a… 相似文献
5.
This study aims to investigate the use of amplifiers in term of gender and disciplinary groups in academic research arti cles,which is based on the British Academic Written English Corpus(BAWE).18 amplifiers were examined across two dimen sions:gender and disciplinary groups.The results show amplifiers are more common in males’ academic writings than in those of females in general,amplifiers are used more often in AH discipline.However,not all amplifiers show significant gender differ ences between men and women.Six words show a significant difference between male and female writers:pretty,by far,perfect ly,quite,a great deal,totally,which are used more often by males.However,the interesting is in LS discipline,most amplifiers are used more often by female than male writers and males tend to use by far more frequently than females. 相似文献
6.
Code-switching, a natural phenomenon that consists of alternating two or more languages in bilinguals’ discourse, has traditionally been examined in its oral production. For over three decades, much attention has been emphasized on its form,meaning, and grammatical patterns. However, very little research focuses on code-switching in short message form. Code switching is a quite common phenomenon. As cell phones become the communication tools used by people more frequently, short message language(SM) attracts more attention by people. Through analyzing the code switching in the SM language, it will help us understand more about its use and explore more information for our study. 相似文献
7.
王良华 《中学英语园地(高三版)》2007,(5)
Mr Smith was a boss of a butcher's shop(肉店). One day a hungry dog came to the shop. The dog wagged(摇动) its tail again and again. The boss gave it some meat to eat. So later on, the dog always stayed with the owner and looked upon him as its own master. When the people found that the boss was friendly(友好) to the dog, they thought Mr Smith could be trusted. As time passed by, more and more customers(顾客) came to buy fresh meat(鲜肉). And he was getting richer and richer. 相似文献
8.
Systemic Functional Linguistics is known to people by its special functionalism and social meaning. The study of Systemic Functional Linguistics is also accepted by more and more people. In addition, it means a lot to the learning of lexis, English writing and extensive reading. 相似文献
9.
Object-oriented model possesses inherent concurrency. Integration of concurrency and object-orientation is a promising new field. MPI is a message-passing standard and has been adopted by more and more systems. This paper proposes a novel approach to realize concurrent object-oriented programming based on Message-passing interface(MPI) in which future method communication is adopted between concurrent objects. A state behavior set is proposed to solve inheritance anomaly, and a bounded buffer is taken as an example to illustrate this proposal. The definition of ParaMPI class, which is the most important class in the concurrent class library,and implementation issues are briefly described. 相似文献
10.
Ultrafiltration (UF) technique is prospective asalternative for conventional processes such as coagula-tion, flocculation, sedimentation and/or flotation,rapid and slowsand filtration[1]. Recentdevelopmentsin reducing energy consumption by (semi) dead-endfiltration and prevention of membrane fouling by back-washing (combined with chemicals), make UF moreand more an interestingoption forthe treatmentof sur-face water on a large scale[2]. At present, UF full-scale applications are evenlyspread… 相似文献