各种活动

The theory of accretion disks are important for many astrophysical phenomena, including Quasars, active galatic nucleic, X-ray binary stars, and young stellar objects. The most important branch of accretion djsk theory is the stability properties of djsks. It is widely considered that the luminosity variations of various astronomical objects are associated with the instability of accretion disk. The viscosity plays an important role in the accretion disk theory, and magnetic field exists commonly in astronomical phenomena. A more realistic analysis of the stabihty of the accretion disk should include both the radjal and azimuthal perturbations because of the strong shear of viscous flow.In this paper, according to the luminosity Variations of Various astronomical objects, we study the radial-azimuthal instability of an isothermal with magnetic field. We find that the radial and azimuthal fields B〓,B〓 are mainly responsible for enhancing the instability of the magneto-acoustic modes and non-axisymmetric modes,and that pulsational oscillations are larger in the radial than in the Z direction. The model may be useful in explaining the periodic light variation of FU orionis and. T Tauri stars.

在许多天体物理现象中，例如活动星系核，X-射线双星和年青的恒星理论中，吸积盘理论起着重要的作用，而吸积盘理论中的一个重要分支是吸积盘的不稳定性理论，普遍认为活动天体的周期，准周期光变现象与吸积盘的不稳定性有关，在吸积盘理论中，粘滞起着重要的作用，而磁场是天体物理中普遍存在的现象，对于几何薄吸积盘不稳定性分析，由于强剪切流的缘故，应该包括径向和环向扰动两个方面，本文结合天体物理中的各种周期，准周期光变现象，研究了含磁场的等温薄吸积盘的径向-环向振荡不稳定性，结果表明：磁场的径向和环向分量对磁声模和非轴对称模的不稳定性的增加起着主要的作用，且径向振荡大于轴向振荡，所得结果有利于解释FU Orionis和T Tauri Stars的周期光变现象。

1St, foreword main point: A, about Earth's internal heat circulation as well as successional variation process three important times: Birth time, lifeless time, until has the life time; B, the earth interior stone fruits archery target thermonuclear reaction, causes the earth interior material convection and the Earth revolve production as well as terrestrial magnetic field production three between relations; C, also has in has the life time, the vital activity to the entire internal heat circulation influence as well as to the earth's atmosphere influence; D, has the life time, in the stratum the coal and the petroleum, the natural gas and so on the fixed energy storage which as a result of energies and so on zoology and botany absorption transformation sunlight forms, to Earth internal heat circulation influence as well as with earth's crust each kind of movement relation, such as: The plate movement, the volcanic earthquake, the orogenesis, the Earth moves the fierce degree the periodic phenomenon and so on.

前言要点： A 、关于地球的内热循环以及演变过程的三个重要时期：诞生时期，无生命时期，直至有生命时期； B 、地球内部核物质的热核反应，引起的地球内部物质对流与地球旋转的产生以及地球磁场的产生三者之间的关系； C 、还有在有生命时期，生命活动对整个内热循环的影响以及对地球大气的影响； D 、有生命时期，地层中煤与石油、天然气等由于动植物吸收转化太阳光等能量而形成的固定能量存储，对地球内热循环的影响以及与地壳各种运动的联系，诸如：板块运动，火山地震，造山运动，地球活动剧烈程度的周期性现象等。

In order to improve the recognition performance, a keyword recognition strategy with the dialogue context embedded in it is proposed, including the expected focus given by the dialogue manager, the active lexicon/rules determined by the understander, and the recognition automata passed to the recognizer to direct the keyword recognition.

针对目前的各种语音识别方法在对话系统中性能不佳的现实，为改善对话系统的整体性能，提出对话语境知识指导下的关键词识别策略：利用对话管理器给出期待焦点信息，确定对应焦点下的活动词表、活动规则集，生成相应的识别自动机，并用其来指导关键词识别。

Activities Department also has several sport teams. We will hold different types of sport matches aperiodically.

活动部下设各种体育运动队，不定期举办各种体育竞赛。

In 2008, the designer Jubi who is from Taiwan, invited 29 artists from worldwide to present "BUSHI GAKKI" and "Bushido" in various ways and styles,as well as enhancing the art activities in Taiwan.

2008年由台湾设计师Jubi所发起策划，邀请29位来自世界各地的艺术家，以各种方式、各种风格，来呈现&BUSHI GAKKI&与「武士道」，也希望藉此发扬台湾的艺术活动。

Lots of spearks from nations to nations give members sharings like Rocky Liang, Albert Hsu, Cindie Wang in memoring teaching and Sam in Negotiating class.

Rocky101 除了提供在网路上的学习平台之外，也不断的举办各种大小的活动，同时邀请各业界知名的老师前来演讲，培养大家持续学习成长的重要性，分享各种不同领域顶尖大师的成功信念。

Occasional Child Care offers developmentally appropriate programs, which provides for a range of experiences.

临时托儿提供适合儿童发展的多种活动，这些活动提供了各种体验。

The endophytic microorganisms found widely in many kinds of plants mediate various effects to theirs hosts.

植物内生菌广泛存在于各种植物中，对宿主的生命活动产生了各种影响。

Apart from Carnival, the many members counting Fanfare is famous for its comical acts and folkloristic dance group during loudly cheered and swirling performances: music festivals, street parades, jubilees, openings, trade shows and company festivities.

除了狂欢节，&青蛙乐团&喜剧化的表演和精彩的民俗舞蹈让他们成为各种热闹欢腾的庆典活动中的热门表演嘉宾，他们参与演出的活动包括：音乐节、街头游行、周年纪念、开幕仪式、贸易秀、公司节日等。

The Earth environment has its boundary,for its economical scope,it is worked as variousfactors of production limited and not substituted,and it can be divided into theappropriable natural resources and the inappropriable public environmental services.Activities of the economic subsystem are absolutely constrained in the environment.The environment shared by all human being,and acted as public goods too,theeconomic subsystem always tends to ignore the environment so that results inrent-free resources tragedy of the commons,and induces serious environmentalproblems.

人类处于地球宇宙飞船之中，地球环境有边界，它为人类生产活动所提供的各种生产要素——可分割的自然资源和不可分割的公共环境服务是有限并难以替代的，环境中的经济子系统活动必然受环境约束。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。