Deformation and Failure of Laser Coat under Impact Loadswith Multishocks

In applying impact loads with multishocks to perform shock experiments for laser cladded cobalt-base and nickel-base alloy coats on the surface of mild carbon steel or austenitic stainless steel, it is found that, under an impact force that is 11%-43% of the static yield limit of the material, micro-plastic deformation is generated both in the coat and upper part of the base. Repeated trials will cause cumulated macro-plastic deformation. After a total of 250,000 impacts, relative deformation rates of 2.2% and 8.9% result in the coat and base, respectively. Moreover, there is a rigidification phenomenon both in the coat and upper part of the base. When the coat covers the entire base, under impact loads with multishocks, the final stress is less than that when the base is only partly covered, and the life is longer.There is intense deformative rigidification and material floating effect on the lower part of the edge of the covering coat. Meanwhile, cracks are likely to occur and spread in this part.     

The Teachability of Learner Strategies

This paper will mainly address the rather controversy question in the study of learner strategies,that is,if learner strategies are teachable or not.I say it is controversy be- cause there are many pros and cons to this problem.Investigations from professionals in the field of strategies training have received many mixed results.In this article I shall try to argue that strategies should be teachable. In the first part of the essay,I shall give a brief literature review relating to this issue of the teachability of learner strategies.In this part the definition and different taxonomle8 of learner strategies should be mentioned.In the second part of the essay,I shall try to argue at first that learner strategies are teachable in general.In the third part of the essay I plan to discuss the vaiue of teaching strategies to students.     

A Study of Lesson’s Application of Input Hypothesis

This essay aims to analyse the Input Hypothesis and its application in a Chinese college reading class.The first part will briefly introduce the main concepts and effectiveness of the Input Hypothesis and elaborate on its implication for practice.The second part will analyse and reflect the hypothesis in a reading class at university level according to the implication of the Input Hypothesis.     

Laser Shock Processing of Surface Copperize on Arc-Meshes Gear

This paper presents surface modifications of aluminum-alloy induced by laser-shock processing (LSP). In the first part, the basic principles are discussed to provide an overview of the physical processes involved in laser shock processing, and to introduce pressure loadings generated by different laser generators. In the second part, emphases are given to the effects of laser intensity, target material, laser pulse duration and laser wavelength, and uniform and localized modeling of fatigue behavior after LSP. In the third part,experimental results are given to show the laser-induced pure mechanical effects on aluminum-alloy by using LSP.     

On the Cultivation of the Sense of Independence

The sense of independence is the ability to stand by yourself, to do things on your own. You trust yourself. You know you are the necessary part, the important part that makes up1 the world. 　Sometimes you may say to yourself, "Why, I can't stand on mys…     

Correlation and Regression Analyses on the Washback effects of Achievement Oral Test on College English Learning

The purpose of this study was to investigate how washback effect of a reformed test influenced students’perspectives in their spoken English learning. This study was expected to enrich the existing literature in testing washback in English as a foreign language context.Findings indicate that the adding of oral part in achievement test does have a positive washback effect on students’learning. However, such a washback effect on students’learning is quite superficial and limited.     

The Special Froms of Disjunctive Questions

Disjunctive question is also called tag question.This form of the sentence is made up of twoparts.One is declarative sentence.The other is the disjunctive question.What's so called disjunctivequestion means to put up interrogation to the declarative sentence.Generally it is adopted the oppositeform with predicate of declarative part——if it is affirmative form in declarative sentence.in thesecond part we must use simply elliptical form of interrogative sentences in the negative.Comperatively speaking,if it is the negative form in the declarative sentence.in the second part wemust use simply elliptical form of interrogative senterces in the affirmative, In regular form, thegrammatical form in the second part of disjunctive questions is opposite to the grammatical form in thedeclarative sentence.Moreover,the subject and the predict forms of the two parts must be identical.For example: 1〉The students are not having a class,are they?     

Computation of rolling resistance caused by rubber hysteresis of truck radial tire

Applying the results of stress and strain calculated by 3D finite element model of truck radial tire 11.00R20, a MATLAB program used to compute rolling resistance of the tire caused by hysteresis rolling resistance (HRR) is worked out. The HRR distribution on different part of tire section, and the effects of speed, load, internal pressure and the width of the rim on HRR are analyzed. The analysis results showed that energy loss produced by tread rubber contributes the most part to HRR of the whole tire, and that to decrease the HRR, the hysteresis factor of the tread rubber should be reduced, and the distribution of the stress and strain on the section be optimized.     

The English Translation Strategies and Techniques of the Names of Tour-ist Attractions in Xi’an

In the translation of tourist materials, the translation of the names is the primary part. This paper aims to analyze the translation strategies and translation techniques of the names of tourist attra...     

Healing the Trauma of Sethe:A Psychological Study on Toni Morrison’s Beloved

Beloved is one of Toni Morrison’s most famous novels and attracts much attention from the public.This essay aims to ana?lyze the healing process of Sethe’s trauma from the perspective of psychological analysis. There are four parts. First, it introduces the plot of the story and the theory. The second part analyzes the forming of Sethe’s trauma and the third part discusses the healing process. The last part reaches the conclusion. By analyzing Sethe’s trauma from psychoanalysis, this paper aims to help these black people to reconstruct their identity and achieve renascence.     

The Study of the Rewriting Identity of“Otherness” in Cartoon Figure MuLan

Since the birth of Disney films,the subject of"otherness"represented in Disney films has been scarcely touched by the scholars.For these decades,the Disney films are invariably received as a purified and exorcized form of art which perpetuates and validates universal values and truths that transcend time and space.However,we can perceive the white supremacist capitalist patriarchy in them.This thesis intends to explore how the western ethnocentrism is related to Disney representation of Otherness by choosing one typical film"Mulan".Structurally,the article is divided into 3 parts.The first part introduces the concept of"otherness"and tries to decode the"otherness"in orient.The second part gives us a general view of the Disney’s producing formula.The third part analyses the rewritten"otherness"identity of Mulan in Disney film.Thus the identity of the native culture has been rewritten.     

Small-World Effect of Complex Network and Its Application toProtein Folding

The famous “six letters“ experiment carried out by Milgram demonstrated the existence of small-world effect in a complex network. One vertex tends to be connected to another by a shortest path through network because of the small-world effect. This paper uses the small-world effect to study protein folding pathway.     

The Writing Reflects the Thinking Pattern from Intercultural Perspective

The language is a play of signs. However, behind the signs is the culture manipulates the signs. The sign is the surface structure; while under the surface is that the thinking pattern matters, which is the only small part of the culture. The culture difference always exists. I would like to study it in terms of the problems which the essay reveals. The first part is to list examples, and the second part tries to analyze it in terms of thinking patterns. The last part is the concluding part. It intends to find solutions to avoid that problem.     

Credibility and Security of Weighing System for Large Structure Object

The weighing system designed for large structure object is mainly composed of three parts. The part of hydraulic system is made up of hydraulic cylinders, high pressure hydraulic hoses and electric pumps; the part of computer controlling system comprises pressure sensors, displacement sensors, data acquisitions, RS 485 network and the computer controlling model; the part of loading system is composed of the fulcrum structure and the concrete girder. The measurement principle and composition of the weighing system are discussed in this paper. Credibility and security of the weighing system are fully considered during the design phase. The hydraulic system is controlled by pilot operated check valves in case of the sudden loss of system pressure. The states of all gauges and RS485 network are monitored by computer controlling system functioning in different modules. When the system is running incorrectly, it will be switched to manual mode and give alarm. The finite element method is employed to analyze fulcrum structure so that the system has enough intensity to be lifted. Hence the reliability of the whole system is enhanced.     

On Interactions of Microwave with Lightwave

This paper addresses interactions of lightwave with microwave,and is divided into two parts.In part one,the background and the main topics of the research filed are introduced.In part two,some research activities at Shanghai University are reviewed,These include optical control of microwave devices,photoinduced electromagnetic radiation,lightwave interaction with superconductors,microwave control of lightwave,and the microwave approach to highly irregular fiber optics.     

Schlieren Visualization of Marangoni Effect in Gas-Liquid Systems

This paper is focused on the Marangoni effect in the gas-liquid mass transfer systems. A series of experiments were conducted to observe Marangoni effect by a laser Schlieren system. Experimental investigations of the occurrence of Marangoni convection were presented. The typical polygonal patterns and even the reaching of chaotic interfacial flow were observed. The visual evidences were discussed and the characteristic time and scale of Marangoni convection were obtained approximately as 0.5 s and 1 mm according to the Schlieren images. From the perspective of hydrodynamic instability, the mechanism of the Marangoni convection was investigated. Though many external factors have influence on the interfacial instability, the local surface-tension gradient is the primary reason for the Marangoni convection. The small-scale interfacial flow increases the surface renewal rate. Consequently, due to the occurrence of the Marangoni effect, the mass transfer rate can be significantly enhanced.     

The English Translation Strategies and Techniques of the Names of Tourist Attractions in Xi’an

In the translation of tourist materials, the translation of the names is the primary part. This paper aims to analyze the translation strategies and translation techniques of the names of tourist attractions. At the same time, it is aimed at awakening the cross-cultural awareness of translators and spread the distinctive culture of Xi’an.     

Cultural Differences and Pragmatic Failure

Language is not only a tool for communication but a part of culture as well.If the understanding of different culture background is neglected in communication,pragmatic failure must easily be produced.According to pragmatic theories,this article analyses various kinds of pragmatic failure in communication because of cultural differences with simple examples.Moreover,it probes into the influence of language pragmatic failure on the effect of communication.     

The Consult Model of Human Resource Supply Chain Based on Higher Education as Core

This paper analyzes the main workflow of our higher education. We introduce the Supply Chain Management （SCM） to describe our Human Resource Supply Chain Management （HRSCM） which takes the higher education as the core. We set up the consult model （HRSCMCM） of it. The model takes the higher education as the core, connects the secondary education and satisfies the social demands. It is also an important part to join the multinational education. It is an acculturation and globalization. Because of uncertain information and the delay demands of Human Resource market, the HRSCM also has its bullwhip effect that the demand and supply can not meet and a large number of graduates can not find jobs. As the resolutions, we set up our model including information sharing, flexible education and forecast-demand double drivers. We hope this model can give some elicitations on our national human resource construction micro-mechanism.     

An Analysis of Teacher Talk in College English Classroom

As an indispensable part of college English class,teacher talk has a great influence on the effect of the language teaching.By analyzing teacher talk from four aspects of dominance of teacher talk,teacher’s questions,teacher’s directives and code-switching,a conclusion is drawn:teachers should employ teacher talk appropriately in college English class in order to improve the quality of language teaching.