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small systems
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  小系统
     To improve expert system's applicability, we choose the accident tree technique which can be used for both qualitative analysis and quantitative analysis, and for both small systems and super systems as the expert analysis method.
     为了提高专家系统的适用性,选用既能定性分析又能定量分析,既可用于小系统又可用于特大系统分析的事故树分析方法作为专家分析方法。
短句来源
     Considering the generator unit’s self-exciting, overvoltage of the no-load circuit in course of power transmission, the structure of network and load distribution situation in the area of Heilongjiang, the whole network is divided into four small systems: JingPo Lake, LianHua factory, FuEr factory and HarBin.
     结合“黑启动”机组所在区域的电网结构和负荷分布情况,并考虑机组的自励磁问题和送电过程中空载线路的过电压问题,将整个黑龙江电网划分为4 个小系统,即镜泊湖、莲花厂、富二厂和哈尔滨小系统
短句来源
     All small systems are arranged in parallel after they were recovered successfully, Thus the whole network structure is recovered.
     在4 个小系统恢复成功后,将各个小系统进行并列,即恢复了整个电网。
短句来源
     Finally,the design of small systems and the physical meaning of decentralized design are discussed in greater detail.
     最后,对小系统的设计和分散设计的物理意义进行了深入的讨论。
短句来源
     Composition of Petri nets is an efficient analysis method from the properties of small systems to those of large systems. Composition product nets of Petri nets are proposed in this paper.
     Petri网组合是由小系统的性质获得大系统性质的一种有效的分析方法 .
短句来源
  “small systems”译为未确定词的双语例句
     The potential for using the traditional technology of software Agents to exploit the Web-based social intelligence is obstructed, because this technology is only suited to closed and small systems, and no strong infrastructure is provided to support the management and control of social behavior of Agents.
     传统软件Agent技术在Web中的应用潜力严重受阻,原因在于该技术只适用于封闭的小规模系统,未提供强有力的基础结构去支持对于Agent社交行为的管理和控制(文中简称管控),不能适应Agent社会面临的由大量异质Agents参与的、开放的、动态变化的、并充满不确定因素的计算环境。
短句来源
     A simple but practical model for the melting and superheating of metallic nanocrystals was presented on the basis of Hill thermodynamic theory for small systems and our equivalent model for cohesive energy and corresponding melting thermodynamics.
     从Hill微系统热力学理论出发,根据已建立的金属纳米晶体结合能的等效模型与相应熔化热力学模型,建立了简单、实用的金属纳米晶体熔化与过热的等效模型.
短句来源
     The main contents of the thesis includes: 1) Setting up a parallel computation model for electromagnetic transients, to realize a real-time simulation in comparably small systems by network partition and paralleling computation techniques;
     论文工作主要包括:1)建立电磁暂态仿真的并行计算模型,利用网络分割和并行技术,实现较小规模系统的电磁暂态实时仿真;
短句来源
     As WEB becomes the fictitious place where people are engaged in the social activity --Social network based on WEB, how to develop the social intelligence based on WEB to become the important way to realize a new generation high-performance WEB The traditional technology of software agents are only suited to closed and small systems, and no strong infrastructure is provided to support the management and control of social behavior of agents.
     随着WEB成为人类从事社交活动的虚拟场所——基于WEB的社交网,如何开发基于WEB的社交智能正在成为实现新一代高性能WEB的重要方式。 传统软件Agent技术只适用于封闭的小规模系统,未提供强有力的基础结构去支持对于Agent社交行为的管理和控制,因此在开发基于WEB的社交智能中应用潜力严重受阻。
短句来源
     Agents are being used in an increasingly wide variety of applications, ranging from comparatively small systems such as email filters to large, open, complex critical systems such as air traffic control.
     智能主体技术正被广泛应用于各个应用领域,从相对小的系统如电子邮件过滤到大型的、复杂的、开放的系统如空中交通控制。
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  相似匹配句对
     Small.
     Small、为正品。
短句来源
     Propulsion Systems for Small Satellites
     小卫星的推进系统
短句来源
     COEXISTENCE OF COMPETITION SYSTEMS WITH SMALL DIFFUSION~*
     带小扩散系数的竞争系统的共存性(英文)
短句来源
     Board & Systems
     线路板与系统
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     Expert Systems
     专家系统
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  small systems
In particular, the simulation results indicate that, for small systems, the adaptive metrics can improve the success ratio by as much as an order of magnitude.
      
Very small systems show a wide range of different execution times.
      
The results of the present work obtained for a small one-dimensional model agree well with the results for two-dimensional small systems and are analogous to the behavior of three-dimensional systems.
      
The approximate methods, which are the only means available for large systems, are generally based on decomposition, and make use of the exact methods for small systems.
      
The exact methods are appropriate for small systems.
      
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First in this paper the mean 2-year mean winter and summer wind fields below 6kmover Tibetan Plateau and its surrounding are presented.In winter the main features on 1.5km(fig.1)and 3 km(fig.2)level are the splitting of the westlies over the plateau,the lineof convergence to the east of the plateau and the“dead-water”regions(characterized by calmwind and little disturbances,except small local vortices)respectively to the east and west of theplateau.On 6km(fig.4)the minor features disappear but the splitting...

First in this paper the mean 2-year mean winter and summer wind fields below 6kmover Tibetan Plateau and its surrounding are presented.In winter the main features on 1.5km(fig.1)and 3 km(fig.2)level are the splitting of the westlies over the plateau,the lineof convergence to the east of the plateau and the“dead-water”regions(characterized by calmwind and little disturbances,except small local vortices)respectively to the east and west of theplateau.On 6km(fig.4)the minor features disappear but the splitting is still evident.Insummer in the vicinity of the plateau low level wind blows cyclonically around it(fig.6—7).Surround this large cyclonic whirl are small systems.On 6km(fig.8)the wind blows anticy-clonically around the plateau.The center of the this anticyclone may be located at the SE cornerof the plateau.This kind of vertical structure of this wind field indicates that the temperatureover the plateau is higher than the surrounding.The region of high temperature is estimated toreach at least as high as 9 km.There is strong vertical motion in the vicinity of the plateau.In winter on its SE the motionis upward,while in the rest of the region the motion is in the main downward.In summer themean motion fundamentally upward velocity reaches about 1 cm/sec,on 6km.Mean advection and temperature gradient(fig.5 for winter and fig.9 for summer)between 3—6km are also calculated from the wind data under geostrophic assumption.Secondly the heat balance over the plateau is estimated from the calculation of short waveabsorption,codensation heating,long wave cooling,temperature advection,adiabatic cooling(or warming)due to vertical motion and turbulent heat transfer from the ground.From thiscalculation it is concluded that Tibetan Plateau is a heat source in summer,while in winter theresult is not very conclusive.Probably in winter the SE part of it plays a role of warm sourcewhile the rest of the plateau plays a role of cold source.

本文利用1954—1956年的高空及地面记录,作出了平均流场,并计算了垂直速度、冷暖平流及辐射等,得出下面几点结论:1)冬季在1.5千米及3千米的西风,在高原西边有明显的分支,东边有明显的会合,且在东西两边各有一“死水区”(风速很小),在高原北面形成了高压脊,而在其南面形成了低槽,到了6千米除了二个“死水区”消失以外,其余基本上没有变化。2)夏季1.5千米及3千米在高原附近的流线,绕高原作气旋性旋转,而到了6千米则相反而呈反气旋性旋转,其中心在高原西南部分,且随高度增加而向西偏。3)夏季在高原上基本上是上升运动,可能达到9千米;冬季在高原上估计可能是下沉运动(除西南角有部分上升运动)。4)夏季可以肯定高原是一个热源,而冬季除了西南角有—部分是热源外,其他地区可能是一冷源。

In this paper we invesigate the relative position of limit cycles of the system dx/dt=-y-y~2+mxy+dx,dy/dt=x(1+ax)(1)where α<0 and dm≠0. It is already known, that(1) can have limit cycles only when dm>0 and|d|<|m|. System (1)has four elementary critical points: O(0,0), M(0,-1), N'(-1/a,y_1'), R'(-a,y_2'), (y_1'>y_2'), where O and R' have index +1, M and N' have index -1. The main result in § 1 is the following: Theorem: (ⅰ)In case m>-a>0 and d>0 sufficiently small system, (1) has just two limit...

In this paper we invesigate the relative position of limit cycles of the system dx/dt=-y-y~2+mxy+dx,dy/dt=x(1+ax)(1)where α<0 and dm≠0. It is already known, that(1) can have limit cycles only when dm>0 and|d|<|m|. System (1)has four elementary critical points: O(0,0), M(0,-1), N'(-1/a,y_1'), R'(-a,y_2'), (y_1'>y_2'), where O and R' have index +1, M and N' have index -1. The main result in § 1 is the following: Theorem: (ⅰ)In case m>-a>0 and d>0 sufficiently small system, (1) has just two limit cycles, appearing separately in the neigh bourhood of 0 and R'. (ⅱ) In case-a>m>0, when d increases from zero, limit cycles appear first in the neighbourhood of O, and later also in the neighbourhood of R', they may exist at the same time. (ⅲ)In case 0>m>a and msystem (1) can have limit cycles in the neighbourhood of O or R', but ther can not exist at the same time. (ⅳ) In case a≥m, system (1) has no limit cycls in thg neighbourhood of R' for any d. In §2 we study the global topological structure of the trajectories of system (1)as well as the parity of the number of limit cycles which can appear in the neighbourhood of O or R'. It is interesting to nate that in cartain cases when |d|increases from zero to|m|, a semi-stable cycle suddently appears in the neighbourhood of R', and then breaks into (at least) two cycles, in which one is stable and the other is unstable.

本文考虑形如 dx/dt=-y+ny~2+mxy+dx,dy/dt=x(1+ax)(1)的第Ⅱ类方程的极限环的相对位置,方程(1)一般有四个初步奇点,两个指标+1的奇点,两个指标-1的奇点(即鞍点)。在§1中,我們給出两个指标+1的奇点附近存在极限环与不存在极限环的某些充分或必要的条件,且給出两个指标+1的奇点附近同时存在极限环与不可能同时存在极限环的充分条件。在§2中,我們分析了方程(1)的軌綫的全局拓扑結构,並分析了两个指标-1的鞍点产生分界环线的可能性,且由这些分界环线的稳定性确定指标+1的奇点附近出現极限环的个数的奇偶性。同时,我們发現了在某些情形,当|d|由零增加至|m|时,在奇点R′附近会突然跳出一个半稳定坏,然后分裂为至少一个稳定环和一个不稳定环。

It is shown through mathematical analysis that the regenerative utilization in industry must be put in the first place so as to effect secondary utilization of thermal energy. That the strengthening pf technological production and saving of fuel will decrease the thermal consumption per product has also been proved theoretically.The characteristics of closed regenerative utilization in flue gas recycle are discussed proving that the flue gas recycle can save fuel even when a small system is used or when...

It is shown through mathematical analysis that the regenerative utilization in industry must be put in the first place so as to effect secondary utilization of thermal energy. That the strengthening pf technological production and saving of fuel will decrease the thermal consumption per product has also been proved theoretically.The characteristics of closed regenerative utilization in flue gas recycle are discussed proving that the flue gas recycle can save fuel even when a small system is used or when the exchangers do not operate quite smoothly.To realize secondary thermal energy utilization by the waste heat boiler and waste heat power generation alone is not fully invulnerable theoretically.

本文通过数学解析的方法,阐述了在工业企业中开展二次热能利用必须把回热利用置于首位,以促使工艺生产的强化与燃料的更大节约.对降低企业按产品计算的热力消耗指标,也从理论上给予了证明.文中通过燃料节约与生产强化方面产生的单位产品燃料消耗率的降低,说明回热利用的重要性,并进一步叙述实行炉烟再循环的闭式回热利用方式的某些特性,明确炉烟再循环对小型机组或工业炉用换热器不尽完善时同样具有节约燃料的功能.本文旨在指出当前仅以余热锅炉、余热发电为主的工业企业二次热能利用工作,在理论上是不完全正确的,也就是说,真正大幅度地节约燃料与促进生产强化并不是动力利用,而是回热利用.

 
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