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1.
This paper describes a debate held in the author‘s medicine major freshmen in class. The activity is intended to encourage students‘ autonomy, and to train students how to acquire various skills in language learning and communication. Through this activity, the students can get enough space to exert their autonomy, and the author can obtain her desired goals too: The center of teaching and learning shifts from the teacher to the students, that is, the students-centered teaching; given autonomous learning environment, students can learn more effectively; and students can acquire relevant abilities.  相似文献   

2.
荡秋千     
How do you like to go up in a swing,Up in the air si blue?Oh,I do think it the pleasantest thingEven a child can do!Up in the air and over the wall,Till I can see so wide,Rivers and trees and cattle and allOver the countryside  相似文献   

3.
ctors can know the patients'body temperature,electrocardiogram,blood pressure and oxygen with the system.In addition,the patient and doctor can progress video dialogue with the system.ADSL;;telemedicine-monitoring;;virtual  相似文献   

4.
This paper presents an equalization algorithm for continuous phase modulation (CPM) over frequency-selective channels. A specific training sequence is first embedded in each data packet. By recursive least-squares (RLS) estimation, the channel information parameters can be acquired, and a fractionally spaced equalizer performs joint decoding and equalization. Simulation results show that the proposed algorithm can acquire the channel information parameters rapidly and accurately, and that the fractionally spaced equalizer can eliminate the intersymbol interference (ISI) effectively, and is not sensitive to timing inaccuracy, so this algorithm can be exploited for demodulation system in burst mode.  相似文献   

5.
The grisliness after-effects can be induced by explosion accident with the collapsing of the structures, the demolishing of the equipments and the casualty of the human beings. Isolation belt constructed between the blast point and the construction is one of the useful design schemes for blast resistance. The nonlinear procedure ANSYS/LSDYNA970 is used to simulate the contact detonation and the isolation belt of blast resistance filled with the air or water respectively. The results indicate that the maximal damage can be caused by the contact detonation, and the isolation belt of blast resistent filled with water can reduce the damage greatly.  相似文献   

6.
论外语教学行动研究的重要性   总被引:1,自引:0,他引:1  
This article mainly gives a brief introduction to the general idea of Action Research and the wayshow it can be applied in the foreign languages teaching. A very practical teaching approach can be derived fromthe study of Action Research,and so we can do something better to manage how to teach to learn and how tolearn to teach well in the real situation.  相似文献   

7.
This paper discusses the background and purpose, and reviews the current situation of the domestic and international cost control theory of real estate development projects, and introduces the research methods. The case study method is used.. The management idea is the summary of management practices, and case study can improve management theory, and in certain sense, can help combining theory with practice. The analysis of practical projects of real estate development, can help clarify theory, and is helpful for grasping theory in practical work and improve actual ability of the real estate development enterprise. Through the case study in Chongqing, the basic situations of real estate in Chongqing are introduced and relevant theory and procedure of cost control are used in the case study.  相似文献   

8.
Role-play is recommended as a useful method to solve the problem of oral English teaching. It’s much more than a performance and it can be considered as a way to vary the kinds of spoken interaction that learners can experience in the classroom of universities. Through the use of role-play, oral English teaching becomes more interesting and attractive; university students can gain more oral English skills in the mini society atmosphere, and the accuracy and fluency of their oral English will be improved.  相似文献   

9.
Prediction Model of Data Envelopment Analysis with Undesirable Outputs   总被引:3,自引:0,他引:3  
Data envelopment analysis (DEA) has become a standard non-parametric approach to productivity analysis, especially to relative efficiency analysis of decision making units (DMUs). Extended to the prediction field, it can solve the prediction problem with multiple inputs and outputs which can not be solved easily by the regression analysis method. But the traditional DEA models can not solve the problem with undesirable outputs,so in this paper the inherent relationship between goal programming and the DEA method based on the relationship between multiple goal programming and goal programming is explored, and a mixed DEA model which can make all factors of inputs and undesirable outputs decrease in different proportions is built. And at the same time,all the factors of desirable outputs increase in different proportions.  相似文献   

10.
With the advent of multi-media computing and the Internet, computers have gained more and more popularity in English language teaching, and they have become tremendously useful teaching tools for English teaching just because they can help users to process input quickly, they can integrate voice, music, video, pictures and text into lessons, and they can also be programmed to tailor teaching and tests for each of the individual students. This article will first focus on the advantages and limitations of applying multi-media software programs in language teaching with the evaluation of Issues in English followed.  相似文献   

11.
A precise aperture measuring system of small deep holes with capacitance sensors is presented. Based on the working principle of non-contact capacitance sensors, influence of the edge effect of gauge head is studied, and one capacitance sensor for measuring the aperture of the small blind holes or through holes is introduced. The system is composed of one positioning device, one aperture measuring capacitance sensor, one measuring circuit, and software. This system employs visual CCD and two-dimensional micro-adjusting mechanism to realize the precise positioning. By LabView software this system is controlled to run automatically, to carry out calibration and automatic data collection, and to make data import into the database directly. Experiments proved that the diameter measurement range of the system can be 1.8 mm—7 mm, the resolution can be up to 5 nm—10 nm, the repeatability measurement standard deviation can be 0.05 μm—0.1 μm, and the measurement uncertainty can achieve 0.15 μm—0.3 μm. So the measuring system can realize the nanometer-level measurement.  相似文献   

12.
The forests can keep air clean,can keep the water and soil not togo away.The forest also can stop the wind from blowing the dustaway. A lot of good land has gone.leaving only sand. So we mustprotect the forest.We should plant more trees. If we cut the trees often,the forests will be destroyed more and  相似文献   

13.
The Gaze Theory     
谢瑜娟 《海外英语》2012,(11):274-277
Gaze describes the relationship of the subject with the power and desire to look and awareness that one can be viewed.The gaze can be motivated by the subject’ s desire to control the object it sees,and an object that can likewise capture and hold the subject’ s eye.The term ’ gaze’ is often defined as looking long and intently with affection at a subject.A person who determines a sense of themselves as an individual element in the world makes up the idea of the gaze.The concept of the gaze is also a central part of theories looking within modernity.  相似文献   

14.
Astronomical cross-matching is a basic method for aggregating the observational data of different wavelengths. By data aggregation, the properties of astronomical objects can be understood comprehensively. Aiming at decreasing the time consumed on I/O operations, several improved methods are introduced, including a processing flow based on the boundary growing model, which can reduce the database query operations; a concept of the biggest growing block and its determination which can improve the performance of task partition and resolve data-sparse problem; and a fast bitwise algorithm to compute the index numbers of the neighboring blocks, which is a significant efficiency guarantee. Experiments show that the methods can effectively speed up cross-matching on both sparse datasets and high-density datasets.  相似文献   

15.
Motivation deals with the connection between word symbol and its sense. Motivated words are the words that can be described as motivated, that is, a direct connection between the symbol and its sense can be easily observed. Non-motivated words refer to the words that can't be explained as motivated, and there is no direct relation between the structure of a word and its mean-  相似文献   

16.
An Old Cat     
An old woman has a cat.The cat is now very old.She can not run fast(快),and she can not bite(咬). One day the old cat sees a mouse,she jumps and catches the mouse.But she can not bite it,so the mouse gets out of her mouth and runs away.  相似文献   

17.
Ce-ZrO2 and ZrO2/CePO4 ceramic system was joined in the green body by using mixed powder. Three kinds of systems are discussed. The microstructure and bending strengths of the joint were investigated and it is found that the Ce-ZrO2 and 30%CePO4/ZrO2 ceramics can be well joined in the green body. A joint with high mechanical property and good microstructure can be obtained after sintering without applied pressure. Complexly shaped ceramic components can be created by the technique of green state joining. A new way to produce them is provided and the cost is reduced due to the simplicity of the process.  相似文献   

18.
A DYNAMIC MODEL OF MULTIPLE PATH TRAFFIC ASSIGNMENT   总被引:1,自引:0,他引:1  
A “Random Shortest Path”traffic assignment model and its algorithm arepresented by simulating the trip-makers'route-choice characters,and the dynamic meth-od is introduced in the assignment model.It is a ideal multiple path assignment modelwhich can be carried out by the dynamic method and static method,can better reflect boththe shortest path factor and the random factor in the route-choice,and is of reasonableassignment volumes.Besides,both dynamic and static softwares particularly suited to thetraffic assignment of large and medium-sized transportation networks arc developed.  相似文献   

19.
1. Introduction In order to improve the driving operation performance, the front suspension of a vehicle is generally of McPherson independent style, which can simplify the structure, lighten the unsprung mass, and conveniently arrange the engine and steering system. Moreover, it can adapt to many types of springs and is of advantage to adjust the height of the vehicle. In such a system, the axis of the kingpin is the line between the upper damper end and the intersection of the transverse ar…  相似文献   

20.
The Parrot     
Maria and Jane have a little parrot (鹦鹉). The parrot looks verynice. They like it very much. Every day they teach it to say, "Hello! We can see you!" Soon the bird can fly in their room and it can say, "Hello! We can see you!" One day Maria and Jane went to a movie. Two thieves (小偷) stole into their room. They were taking away something expensive when the bird saw them, saying, "Hello! We can see you!" The thieves put down the things and rushed out of the room.  相似文献   

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