Financial Crisis

Financial crisis started from America and soon spread all over the world.How did this happen? What government has done to rescue the economy and what should we do to help? Is financial crisis inevitable? These questions have bothered me for a long time.However,if we use a macroeconomist eye to view the world,all the questions seemed clear and crystal.     

可重构星球探测机器人跨越壕沟能力研究

1 Introduction The main advantage of reconfigurable robots is thatthey can change structures and shapes autonomouslyaccording to the external environment or practical taskdemands . This makes themrobust and flexible to suitthe tasks and the environment in order to work well inmany unstructured environments such as aviation,planetary exploration, military reconnaissance andattacks ,rescue ,etc. Many researches have been con-ducted in recent years[1-5],and there has been increa-sing research int…     

The Critical Discussion of the Second Language Learning in the Classroom in China

Over the past decades,Chinese students have employed various methods with a large amount of time and enormous efforts on learning English.However,the result is still far from satisfaction.Therefore,how to learn English more effectively in the classroom has become a major concern not only for students,but also for teachers and linguists.This paper consists of two sections,and each section has the same three topics,exploring the second language learning issues according to the literature review and my personal English learning context in China.Hopefully,it can help Chinese students and teachers to have a better understanding of some common issues related to the second language learning.     

Nonlinear analysis of consolidation with variable compressibility and permeability

INTRODUCTION Since the development of the conventionalconsolidation theory by Terzaghi (1943) in 1923,many attempts have been made to present some solu-tions for the problems considering more realistic as-sumptions on the practical geotechnical engineering.Some efforts have been made to avoid limitation ofthe assumptions in the Terzaghi’s theory. During theconsolidation of soil, it is obvious that the coefficientof volume compressibility mv and the coefficient ofpermeability kv ar…     

Numerical simulations on rock damage and fragmentation by blasting

1. Introduction In order to study rock damage and fragmentation during blasting, many numerical models have been developed. These efforts have varied from semi-empirical [1,2] to formulations based on shock wave physics [3,4]. Numerical modeling of blasting has been focusing on the complexity of the blasting process. This complexity requires that numerical models be developed in a highly systematic fashion in close coordination with controlled field and laboratory experimentation. This work d…     

Ozone forming potential and sulfur effects on in-use vehicles of the metropolitan area of Mexico City

INTRODUCTION Motor vehicles continue to be the dominant source of air pollution, despite tremendous advances in engine technology and pollution control. Vehicles are significant sources of CO, HC, and PM and comprise one of the most important sources of NOx, which along with HC, are the essential precursors of ground-level ozone. In view of emissions harm to human health, major efforts to control them have been made, both through improved emission control technologies and through gasol…     

Joint rate control and scheduling for wireless uplink video streaming

INTRODUCTION Video streaming is becoming one of the major driving forces of next generation wireless networks. For the currently deployed cellular networks, the practical data rates are not enough to support full rate, high quality video applications. As a result, many research efforts have been devoted to adapting video content to reconcile the conflict between the high demand of video quality and the limited wireless communication resources among users. A large body of literature utiliz…     

Frequency domain stability criteria for fractional-order control systems

1 Introduction Systems in reality are more or less affected by non-integer orders. Some kinds of systems such as materials having memory and hereditary effects and dynamical processes including mass diffusion and heat conduction, etc [1], need fractional-order models to obtain more precise math models and content control performances. [2].It has been gradually attach importance to this field. In the last two decades, great efforts have been made to try to bring fractional-order control systems…     

A hybrid neural network system for prediction and recognition of promoter regions in human genome

INTRODUCTION The publication and preliminary analysis of thehuman genome sequence (Lander et al., 2001; Venteret al., 2001) marks a significant milestone in the fieldof molecular biology. One of the main goals of theHuman Genome Project is the characterization, an-notation?recognition and categorization of genesfrom human genome to serve as a periodic table forbiomedical research (Lander, 1996). In the past fewyears, many efforts have been devoted to gene anno-tations. The Nation…     

EVA based model to estimate the Chinese listed company’s intrinsic value

1 Introduction a Evaluation and measurement of the value of an enterprise is still a puzzle in accounting circle. Many efforts have been directed in the past years to theoretical and empirical research on this problem. Economic value added (EVA) is one of the hot issues. Briefly speaking, the EVA is balance between company’s after-tax operation profit and capital cost; it is an economic profit concept after considering opportunity cost, not simply the accounting profit concept; it is the t…     

A Comparison between Chinese and Western Cultures

Cultural awareness, which plays a big part in our efforts of culture development, comes from active comparison and contrast of different cultures, especially between the domestic and foreign cultures. Though the Chinese culture and the western cultures have much in common, they differ in value and morality concepts, Social customs, etiquette, relations, the spirit of individuality and so on. We should bear in mind this cultural awareness when making cultural policies, or having cross-cultural communications, which enables us to become more active in culture development.     

Key Middle School

Shanghai is to abolish key junior middle school in an effort to make school more mixed and make sure of an overall level of education. This year, graduates from primary schools will go to junior middle school close to their homes. Key middle schools came into being as a result of college entrance examina-tions after 1977. In the recent years, pupils in ordinary Shanghai schools have developed an inferiority complex, and many ceased to make much efforts in their studies. The decisi…     

A Study on the Teachers’Code-switching in Vocational College Non-Eng lish Majors’English Instruction

This paper is designed to investigate the teachers’code-switching used in English instruction in vocational colleges and wants to make some efforts to the better understanding and use of code-switching and develop a positive attitude towards the code-switching in English teaching classroom.     

Teacher and Student Roles in Chinese Culture

Nowaday, going abroad to further education has gained the greatest popularity among chinese students. Majority of these oversea students may suffer from some problems in their cross-cultural classrooms, even though they are excellent in their own country. Chinese learners are frequently labeled as"passive learners", compared with other foreign learners. The teachers in foreign countries may also play a sharply different role in teaching. These problems have already attracted some education experts and researchers’attention and a few research programs and experiments have been conducted. This paper will adopt Tweed and Lehman (2002)’s Confucian-Socratic framework to systematically analyze student and teacher roles in Chinese culture and communicative norms of the students and teachers in Chinese contexts. A better cross-clutural classroom will be built on the basis of foreign teachers and chinese students’mutual efforts on understanding each other’s culture background.     

Han Geng Struggles Hard in Entertainment Circle

Han Geng(韩庚) is a pretty,simple and honest Chinese boy.As a member of Super Junior,a Korean boy band popular throughout Asia,he is the first Chinese artist who has ever become successful in the mainstream artistic community in South Korea.With four years' consistent efforts,he has established himself in the entertainment circle(娱乐圈).Last year,Super Junior won many awards such as the Best New Player and the Most Popular Group of the year.Because of this,people have begun to pay their attention to this smiling Chinese boy,and wonder how he has survived from the fierce competition in this field.     

稳健图像Hash研究进展

The easy generation, storage, transmission and reproduction of digital images have caused serious abuse and security problems. Assurance of the rightful ownership, integrity, and authenticity is a major concern to the academia as well as the industry. On the other hand, efficient search of the huge amount of images has become a great challenge. Image hashing is a technique suitable for use in image authentication and content based image retrieval （CBIR）. In this article, we review some representative image hashing techniques proposed in the recent years, with emphases on how to meet the conflicting requirements of perceptual robustness and security. Following a brief introduction to some earlier methods, we focus on a typical two-stage structure and some geometric-distortion resilient techniques. We then introduce two image hashing approaches developed in our own research, and reveal security problems in some existing methods due to the absence of secret keys in certain stage of the image feature extraction, or availability of a large quantity of images, keys, or the hash function to the adversary. More research efforts are needed in developing truly robust and secure image hashing techniques.     

Particle Swarm Optimization based predictive control of Proton Exchange Membrane Fuel Cell （PEMFC）

INTRODUCTION Fuel cells have attracted more attention in the last few years due to scarcity of the world energy source. The Proton Exchange Membrane Fuel Cell (PEMFC) is the focus of current development efforts because it is capable of higher power density and faster start-up than other fuel cells (Zhang et al., 2004). Research emphasis is on high power density with adequate energy conversion efficiency. PEMFC performance is related to many factors, among which electrolyte membrane …     

WHAT A LUCK

Luckily Jack Sykes said a big thank you yesterday to the doctor whosaved his life with a penknife operation five miles up in a jet. Quick—thinking Charles Plokin dashed to the rescue when 88-year-oldJack fell down unconscious(失去知觉的)—a piece of chicken stuck in histhroat.If the doctor hadn’t operated,Jack would have died.     

Quantum entropies of electromagnetic and gravitational fields on Taub-NUT black hole background

1 Introduction a In theoretical physics, the problem of calculating the quantum entropy on black hole background is a hotspot. Much efforts have been devoted to study the quantum entropy via brick-wall model [1] in the last 20 years, and most conclusions [2-6] are the quantum entropy according with Bekenstein-Hawking equation, i.e. S = Ah / 4 where S is the quantum entropy; and Ah is the area of the black hole horizon. But recent research [7,8] shows that the quantum entropy also has the log…     

Strategies for Subtitle Translation of Reality Show under the Guidance of Relevance Theory

Relevance Theory mainly emphasizes the transmission,utterance and inference of the communicative target.In this process,the communicators should create the best communication context according to communicative target and purpose to achieve the optimal relevance between the communication content and the background information of communicators.The basic conclusion to be drawn from this thesis is that the subtitle translator’s task is to guarantee the target-language audience able to enjoy the original dramatic experience as the source-language audience with the least processing efforts.