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1.
Infrared (IR) absorption spectra and X-ray powder diffraction (XRD) patterrns of sexpenfine cat's eye from Sichuan Province have been investigated, and infrared absorption bands of the serpentine have been assigned in this paper. The results indicate that the bands near 3 600 - 3 700 cm^-1 belong to the stretching absorption band VOH, the bands in 948 - 1 100 cm^-1 axe assigned to the stretching vibraling band Usvo, and the bands at 600 570 and 440 cm^-1 respectively belong to the bending vibration band VOH, δMg-O and δSi-O. The serpentine cat' s eye includes two types: chrysotile and antigorite. Chrysotile has a sharp and intensive band at 3 688 cm^-1 and a weak band at 3 643 cm^-1 , while antigorite has only one intensive band in the region. At vibration band VSi-O, chrysotile and antigorite have a similar feature at 1 071 cm^-1, but the band at 980 cm^-1 in anfigorite has been split into two bands in chrysotile - a strong one at 1 027 cm^-1 and a weak one at 949 cm^-1. In addition, antigorite has a characteristic bending vibrating band δMg-O at 570 cm^-1. Based on the analysis of the feature of crystal structure, their IR differences axe well explained.  相似文献   

2.
The translator, as the main body of a translation, has been in an invisible and ignored state for a long time. The position of the translator has been improved and the role of the translator has begun ...  相似文献   

3.
Cats is my favorite opera. It has been put on throughout the world and is loved by all the opera fans. I know much about the opera 1 . It has been performed more than 1,500 times up to now. In April 2004, it came to Beijing for the first time. The opera tells us that 2 . One day, they decided to choose a cat to go to paradise(乐园). So each of the cats introduced himself and showed himself. 3 . At last, a very old cat came out. She sang a song called Memory. She sang, "...Memory, all alone in the midnight. I can smell of the old days. Life was beautiful then. I remember the time I knew what happiness was. Let the memory live again..." From this song, we can know 4 . At the end of the opera, the cats chose the old cat to go to paradise. 5 . I like it very much.  相似文献   

4.
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   

5.
6.
吕婕 《海外英语》2013,(15):196-197
As the hero in Ernest Hemingway’s greatest masterpiece,The Old Man and the Sea,Santiago has always been considered as a perfect example of Hemingway’s stoical protagonists.Being one of the classic characters in the American literature,Santiago is noticed for his strength,wisdom,bravery,and above all,his unsurpassed endurance.Even though the prototype of Santia go in reality,as Hemingway once revealed in an interview,is an old Cuban fisherman who told him about his experience of catching a large marlin and losing it to the sharks in 1935[海],the spiritual prototype of the old man has been best interpreted in the Greek Mythology.To be more precise,Santiago’s spiritual prototype is the combination of Atlas,Prometheus and Sisyphus.  相似文献   

7.
郭梦雅 《海外英语》2013,(22):209-212
The purpose of this research is to identify the historical status of Song Dynasty of China.The historical status of Song Dynasty has been a controversial topic for a long time.Song Dynasty has been remembered in different ways in China and in the West at different times.This study will discuss the advantages and disadvantages of Song Dynasty and evaluate Song Dynasty real istically and fairly.  相似文献   

8.
Canberra     
Canberra is a picturesque 20th-entury concoction on the banks of Lake Burley Griffin ( 贝里哥里芬湖) that has struggled to establish itself as the focus of Australia's national identity. It has often been perceived as a "fat cat"(有权有势的 ) town of politicians and bureaucrats living off the rest of the country.  相似文献   

9.
阅读操练     
胡敏 《双语学习》2009,(6):23-23
A
A cat is sitting at the foot of a tree. An owl (猫头鹰) is standing in his home in the tree, They look like each other. Both the cat and the owl can see in the dark. They can catch mice, too, The owl has two wings but the cat hasn't.  相似文献   

10.
The undercooling and solidification of 150μm and 185μm droplets of Sn-5%Pb alloy prepared by the uniform droplet spray(UDS) process have been investigated.The enthalpy of the droplet has been measured by non-adiabatic calorimetric method as a function of the flight distance.A droplet solidification simulation model has been used to compare with the experimental data.The results show that the enthalpy released by the droplets in the calorimeter 11.88J/g and 22.29J/g less than the simulated values up to a certain flight distance at 0.485m and 0.460m for 150μm and 185μm droplets respectively,but agrees with the expected values at larger distance.The nucleation of the droplets takes place at the distance where the experimental and simulated enthalpy values agree.The droplets quenched before nucleation solidify into metastable supersaturated solid solution and have large undercooling.The formation of the metastable structure in the droplets has been verified metallographically and by calculations based on a thermodynamic model.  相似文献   

11.
There has been a severe lack of rain and snow on the East Coast of the United States. The amount of rain and snow that has fallen in the states from Maine (缅因州) to Florida has been far below normal. The lack rain or snow is called a drought. The East Coast states are suffering an unusual drought this winter. Some areasreceived only a small percentage of the rain they normally receive. And the drought has continued into the winter. Normally, drought conditions happen during hot summer weather. Ground water supplies usually increase in the winter and decrease in the spring and summer. Some officials worry  相似文献   

12.
Since the beginning of Chinese higher education expansion in 1999, higher education in terms of scale, speed and structure has been rapid development and beyond the bearing capacity of its ecological balance, input and output of the unbalanced phenomenon between higher education and social environment, the unbalanced phenomenon also appear in regional distribution, between quantity and quality, between structure and function. The status quo of Chinese higher education has been described in the paper, the unbalanced phenomenon has been analyzed, and the corresponding countermeasures has been proposed for the imbalance in Chinese higher education, it provide reference views for the reform of Chinese higher education.  相似文献   

13.
Chloride content and the pH value of the pore solution in the neighborhood of steel reinforcement are decisive parameters for initiation and rate of corrosion. The pore solution of cement mortar and hardened cement paste has been expressed from the pore space by high pressure in the investigation. The influence of the water-cement ratio, age, and addition of chloride to the fresh mix on chloride content in the pore solution has been determined by ion chromatography. At the same time the pH value of the pore solution has been determined. The dissolved chloride content decreases with increase in the water-cement ratio. The amount of bound chloride increases with time, but it decreases with decreasing content of dissolved chloride in the pore solution. A significant influence of carbonation on the dissolved chloride content of the pore solution has been observed. With complete carbonation, the dissolved chloride content in cement mortar and hardened cement paste increases by a factor between 2 and 12. The bound chloride decreases by 27%-4%. As expected, the pH value decreases from around 13.2 to as low as 8.0 due to carbonation. It can be concluded that carbonation not only lowers the pH value but liberates bound chloride. This is one obvious reason why the combined action of chloride penetration and carbonation accelerates steel corrosion and shortens the service life of reinforced concrete structures.  相似文献   

14.
Study on the Fuzzy COntrol Strategy of Automobile with CVT   总被引:3,自引:0,他引:3  
In order to study the dynamic characteristics of automobile with a CVT system, a bond graph analysis model of continuously variable transmission is established.On the base of the simulation state space equations that are established with bond graph theory,a fuzzy control strategy with an expert system of starting process has been introduced.Considering uncertain system parameters and exterior resistance disturbing,the effect of the profile of membership function and the defuzzification algorthm on the capacity of the fuzzy controller has been studied.The result of simulation proves that the proposed fuzzy controller is effective and feasible,Such controller has been employed in the actual control and has proved practicable.The study lays a foundation for design of the fuzzy controller for automobile with a CVT system.  相似文献   

15.
Application of BP NN and RBF NN in Modeling Activated Sludge System   总被引:6,自引:0,他引:6  
Based on the operation data from a certain wastewater treatment plant(WWTP) in northeast China,the models of back propagation neural network ( BP NN ) and radial basis function neural network ( RBF NN ) have been designed respectively and the ability of convergence and generalization has been analyzed separately.As for BP NN, the effects of numbers of layers and nodes have been studied ; as for RBF NN, the influences of the number of nodes and the RBF‘s width have been studied. It is concluded that BP NN has converged much slowly in comparison with RBF NN. The conclusion that the RBF NN is suitable for modeling activated sludge system has been drawn. An automatically optimum design program for RBF NN has been developed, through which the RBF NN model of traditional activated sludge system has been established.  相似文献   

16.
姜波 《海外英语》2012,(11):7-8
The ownership of the English language has always been a hot issue in the field of language studies.With the emergence of world Englishes,the position of British English and American English has been challenged.A few models have been examined to illustrate the relationship among British English,American English and world Englishes.And finally,the nature of English as an international Eng lish is also discussed.  相似文献   

17.
Language awareness   总被引:1,自引:0,他引:1  
Language awareness refers to the development in learners of an enhanced consciousness of and sensitivity to the forms and functions of language.The approach has been developed in contexts of both second and foreign language learming,and in mother-tongue language education,where the term"knowledge about langiage"has sometimes been preferred. The concept of language awarenes is not new.van Essen(1997) points to a long tradition in several European coun-  相似文献   

18.
The dynamic interaction between maglev vehicle and three-span continuous guideway is discussed. With the consideration of control system, the dynamic interaction model has been developed. Numerical simulation has been performed to study dynamic characteristics of the guideway. The results show that bending rigidity, vehicle speed, span ratio and primary frequency all have important influences on the dynamic characteristics of the guideway and there is no distinct trend towards resonance vibration when fl/(v/l) equals 1.0. The definite way is to control impact coefficient and acceleration of the guideway. The conclusions can serve the design of high-speed maglev three-span continuous guideway.  相似文献   

19.
卫娜 《海外英语》2015,(2):189-190
The translator, as the main body of a translation, has been in an invisible and ignored state for a long time. The position of the translator has been improved and the role of the translator has begun to be recognized since the field of translation studies multifaceted and deepened. In order to analyze the translator’s subjectivity better, the thesis states comprehensive definitions of the translator’s subjectivity and uses Wolf Totem as a case study, whose author is Jiang Rong and the translator is Howard Goldblatt, to show that how the translator Howard Goldblatt utilizes his subjectivity in the translation process.  相似文献   

20.
The troubled state of affairs in the Federally Administered Tribal Areas (FATA) of Pakistan portends serious repercussions and grave consequences, destined to affect education particularly higher education in the entire tribal belt. Ironically, no extensive study has been conducted, to investigate those dimensions of FATA higher education which have been adversely affected in the aftermath of 9/11. This exploratory study examines those areas which have been badly affected as a result of current turmoil. In fact, the higher education in FATA has its own peculiar dynamics. Inherently, the entire tribal region has very few well-maintained and properly equipped colleges. Lack of adequate educational facilities, multiplied poor security environment has aggravated the entire situation. Law and order situation in the region has undermined the already dilapidated monitoring mechanism of education department. This state of affairs provides breeding ground for extremist propensities and radical tendencies. In reality, very little attention has been devoted to reform the education system in tribal areas. The whole set up needs to be rehabilitated by taking recourse due to the proactive role of international community. The paper concludes with recommendations for policy makers besides offering new avenues for further research.  相似文献   

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