后顶叶空间注意功能的跨颅骨磁刺激仪研究

目的 探讨后顶叶的空间注意功能。方法 使用跨颅骨磁刺激仪 (TMS)干扰后顶叶的活动 ,观察被试在Conjunc tion作业中反应时间的变化。结果 使用TMS干扰后顶叶的活动时 ,初试的被试反应时间明显增加 ,但是非初试被试的反应时间没有变化。结论 后顶叶的作用不是记忆 。

Calculation and Analysis of Valence Electron Structure of Mo_2C and V_4C_3 in Hot Working Die Steel

Taking the hot working die steel （HWDS） 4Cr3Mo2NbVNi as an example, the phase electron structures （PES） and the biphase interface electron structures （BIES） of Mo2C and V4 C3 , which are two kinds of important carbides precipitated during tempering in steel were calculated, on the basis of the empirical electron theory of solids and molecules and the improved TFD theory. The influence of Mo2 C and V4 C3 on the mechanical properties of HWDS has been analyzed at electron structure level, and the fundamental reason that the characteristic of the PES and the BIES of carbides decides the behavior of them has been revealed.

PHASE STRUCTURE FACTOR AND INTERFACE CONJUNCTION FACTOR OF CAST IRON AND ITS COMPOSITION DESIGN

Theempiricalelectrontheory of solidsand molecules( EET) and theimproved TFDtheory wereapplied tocalculatethe phasestructurefactorsand interfaceconjunction factorsofcom mon alloying elementsincastiron. Akind of Si- Mo- Cu ductileiron with rareearth Mg asnodularizer was designed accordingtothese valenceelectron structure parameters. Actual applicationtestsshow thatthelongevity of thisiron is 1.5 timesof thatof high manganesesteel. This accordance of theoretical results and actual effectsshows the composition design methodcan beused in othercastiron research.

英语篇章的主题连贯性和英语句子的移位转换

篇章连贯性(Text-coherence)是篇章语言学研究的重要课题.人们无论说话或写文章,都是根据话题和会话目的把句子通过一定的连接手段有机地结合起来.语言符号组装的线性特征规定了言者只能将语言单位在"时间线条"上进行线性的排列,构成言语链.话语中的句子如同这一链条上的环节,彼此都不是孤立的,而是首尾相顾,环环紧扣,体现了表达思想,传递信息的连续性和条理性.构成英语篇章连贯性的因素很多.Halliday在Cohesion in English 一书中把衔接手段分为五大类:照应(reference),替代(substitution),省略(ellipsis),连接词语(conjunction)。

SCATTERING OF PLANE SH-WAVE BY A CYLINDRICAL HILL OF ARBITRARY SHAPE

The problems of scattering of plane SH-wave by a cylindrical hill of arbitrary shape is studied based on the methods of conjunction and division of solution zone. The scattering wave function is given by using the complex variable and conformal mapping methods. The conjunction boundary conditions are satisfied. Furthermore appling orthogonal function expanding technique, the problems can finally be summarized into the solution of a series of infinite algebraic equations. At last, numerical results of surface displacements of a cylindrical arc hill and of a semi-ellipse hill are obtained. And those computational results are compared with the results of finite element method (FEM).

A Study of Planetary Theory in the Great Expansion System(Dayan li大衍历,727 CE):The Case of Mars

The planetary theory in the Great Expansion System(Dayan li大衍历,727 CE)is investigated,with a detailed example of Mars.In ancient Chinese astrology,the position of one planet and the relative positions of different planets had important astrological significance.Thus,planetary theory is an important part of Chinese mathematical astronomy.The Great Expansion System,which was compiled by Yixing一行of the Tang唐dynasty(618–907 CE),provided many innovations in planetary theory.Based on the extant Treatises on Mathematical Harmonics and Astronomy(Lüli zhi律历志)in Chinese official histories,the Great Expansion System was the first Chinese astronomical system to include tables of the planetary equation of center and procedures for correcting the influence of the planetary equation of center on the position of a planet.It was also the first Chinese system to design a table of the planetary phases of motion for calculating the mean position of a planet,which was the basis for calculating the true position of the planet.In addition,Yixing proposed the concept of the precession of planetary perihelion and gave the values of the precession of planetary perihelion for the first time in ancient China.The innovations of the Great Expansion System regarding planetary theory established its important position in the history of Chinese astronomical systems.Mars is taken as a case study to investigate the planetary theory in the Great Expansion System,including the astronomical constants related to Mars,two important astronomical tables,namely the table of the equation of center and the table of the phase motion of Mars in one synodic period,and the procedures for calculating the position of Mars on any given day using the planetary and solar equations of center.Two questions are addressed.First,how did Yixing correct the influence of the equation of center of Mars on the time of mean conjunction and the mean position of Mars?Second,how did Yixing calculate the true position of Mars on any given day?The original text of the Great Expansion System is analyzed to show how Yixing developed the planetary theory in the Sui and early Tang periods and constructed a complete method for predicting the true positions of planets using the planetary and solar equations of center.

The Path of Grammaticalization for Coordinate Conjunctions and its Universality

From the study of polysemy of coordinate conjunctions, it can be found that there are grammaticalization processes from coordination to transition and from coordination to succession. It is a general evolutionary process in connective structures to go from non-specific semantic relationship to specific semantic relationship. This was caused by the cognitive tendency of approximately substituting typical functions for atypical functions.

Research on the Occurrences of Causality Conjunctions in Korean Based on Corpus

Corpus is a kind of database that may contain texts in a single language(monolingual corpus)or text data in multiple languages(multilingual corpus).Most of the words can be involved in such a database,so it is provided with significant realistic meaning for language learners.Also,the use of causality conjunction in Korean plays a more important guiding role in listening,speaking,reading and writing of Korean.However,the status with regard to the application of causality conjunction in Korean is not optimistic and the problems such as the improper use of language,lack of knowledge about conjunction by learners,short of professional Korean teaching consciousness by teachers and others are being,thereby seriously hindering the learning interests of Korean learners and educational progress.Thus,in accordance with research status at home and abroad,this paper carries out indepth analysis on the basic theory of corpus and Korean conjunction as well as the application of causality conjunction in Korean based on the corpus.And it can be found that the research on the application of causality conjunction in Korean based on corpus is with important value for both the flexible use of language and the improvement of comprehensive application ability of language.

Conjunction and Teaching Reading Skills in English

Conjunction contributes to organizing and managing stretches of discourse, indicating the way the information is arranged. Successfully identifying these discourse markers is of great benefit to the reader to extract the required information from what he/she reads, especially for the candidates who are tested for their reading abilities in a given time, for these markers give clues to the reader and make the perception easier and save a lot of time. To teach students to explore reading skills and read su...

An Analysis of Cohesive Devise in an English Text from the Perspective of Discourse Analysis

This paper analyzes the cohesion in the text"Three Days to See"from the perspective of discourse analysis.It is analyzed by cohesive devises put forward by Halliday,that is,reference,substitution and ellipsis,conjunction and lexical cohesion.It is found that all those devises have been used in the text,therefore making the text textual or"be a text".

Cohesion and Its Comparison between English and Chinese

This article analyzes the three categories of cohesive relations divided by Halliday and Hasan in the book"Cohesion in English",and aims to compare the different and similar usage of cohesion between English and Chinese.

THE KARST IN XISHAN MOUNTAIN AREA OF BEIJING

GEOLOGY. CLIMATE AND HYDROLOGY The Xishan mountain area is located in the southwest of Beijing, and 50 km away from the capital city of China. The geotectonic background of the area is in the conjunction of Taihan Mountain relief zone. and the subsidence zone of Huabei plain, at the north of Huabel massif.

Recombinant Apo-2L induced apoptosis in glioma cell lines

Glioblastoma multiforme (GBM), the most commonprimary malignant brain tumor in adults is associated witha poor prognosis despite aggressive treatment withsurgical tumor debulking, radiation, and chemotherapy.Novel approaches including gene therapy provide newalternatives in the treatment of GBM. Apo-2 ligand(Apo-2L), a novel cytokine, is a member of the

Excellence in education and research Penn dental sumposium

In conjunction with the opening of the Penn Wharton China Center in Beijing,Penn Dental Medicine will present a one-day academic symposium on Sunday,March 8,2015.The symposium will focus on the essence of our teaching philosophy and advances in the dental specialties of restorative dentistry,periodontics and endodontics. The day will also feature scientific research on mesenchymal stem cells as it relates to pulp biology and regeneration. We anticipate the day will be an active exchange of ideas and discussions with professors from Chinese dental schools.

THE ESTABLISHMENT AND APPLICATION OF A YEAST STRAIN FOR MUTAGENICITY TEST

We have successfully established 2 newmodels of D7 and D61.M in a yeast strainof saccharomyces cerevisiae for mutage-nicity test.

On the conjunction practical stability and controllability of large-scale impulsive control systems

We studied the conjunction practical stability and controllability of large-scale impulsive control systems by using the comparison systems and vector Lyapunov fimctions. Then the less conservative sufficient conditions for conjunction practical stability and controllability of large-scale impulsive control system were obtained.

The 4th International Exhibition on Refractories, Industrial Ceramics and Furnaces(RCF Expo'2003)Beijing, China, April 15-17, 2003In conjunction with China Refractories Seminar' 2003-Technology and Markets

Organizers and Sponsors: China Association of Refractories Industry The Chinese Society for Metals The Chinese Ceramic Society

CALL FOR PAPERS Workshop on Intelligence and Security Informatics (WISI’06) in conjunction with the Pacific Asia Conference on Knowledge Discovery and Data Mining (PAKDD’06)

Important Dates Submission due November 15, 2005 Notification of acceptance December 30, 2005 Camera-ready copy due January 10, 2006 Workshop Scope Intelligence and Security Informatics (ISI) can be broadly defined as the study of the development and use of advanced information technologies and systems for national and international security-related applications. The First and Second Symposiums on ISI were held in Tucson,Arizona,in 2003 and 2004,respectively. In 2005,the IEEE International Conference on ISI was held in Atlanta,Georgia. These ISI conferences have brought together academic researchers,law enforcement and intelligence experts,information technology consultant and practitioners to discuss their research and practice related to various ISI topics including ISI data management,data and text mining for ISI applications,terrorism informatics,deception detection,terrorist and criminal social network analysis,crime analysis,monitoring and surveillance,policy studies and evaluation,information assurance,among others. We continue this stream of ISI conferences by organizing the Workshop on Intelligence and Security Informatics (WISI’06) in conjunction with the Pacific Asia Conference on Knowledge Discovery and Data Mining (PAKDD’06). WISI’06 will provide a stimulating forum for ISI researchers in Pacific Asia and other regions of the world to exchange ideas and report research progress. The workshop also welcomes contributions dealing with ISI challenges specific to the Pacific Asian region.

略论英语中表示时间关系的从属连词

Ⅰ小引连接词(conjunction)是英语词类的一种,在书面语(written English)和口头语(spoken Enghish)中都相当活跃;它在句中所起的作用相当重要。就连接词的词汇意义和句法作用而言,连接词可分为等立连接词(coordinating conjunction)和从属连接词(subordinating conjunction)两大类。从属连接词中的状语连接词(adverbial conjunction)可用以表示时间、地点、原因、结果、条件、让步、目的、

The Development of Successive Conjunctions of Chinese

The paper explored the development of successive conjunctions from Archaic Chinese to Contemporary Chinese from a macroscopic perspective.Data statistics and diachronic study method were adopted in this paper,and the results indicated that a quantity of new successive conjunctions have been produced both in Archaic Chinese and Mid-ancient Chinese,and at the same time a very large proportion of the old successive conjunctions were superseded by the new.Those which appeared in very few types of corpus and have low frequency of use are more likely to be eliminated.In Contemporary Chinese,the successive conjunction system tends to be stable and concise.