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有限系统
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  limited system
     In this paper, we studied schematic and circuits of cyclic code by taking BCH as an example, then put forward that th e limited system resources can be dynamically used with the error correcting cod e reconfigurable circuit.
     文中以 BCH[7,4 ,3]码为例 ,研究了循环纠错码的构造原理和电路结构 ,提出纠错码电路可以建立在纠错码基核单元的基础上 ,重构纠错码电路来实现有限系统资源的动态再利用。
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  finite system
     THE Q-MATRIX PROBLEM OF FINITE SYSTEM
     有限系统Q-矩阵问题
短句来源
     In this paper, the author studies a method which reduces the Q-matrix problem of finite system to one-dementional Q-matrix. By this method, some sufficient conditions which are much more practical for the uniqueness, recurrency and ergodicity of finite system Q-process are obtained. At last.
     本文研究了一种将有限系统Q-矩阵化成一维Q-矩阵的方法,得到了有限系统Q-过程的唯一性、常返性、正常返性的充分条件,并将它们应用于几类有限系统
短句来源
     The relationship among the theory of multiple scattering and the theory of energy band usually adopted in the extended system as well as the approach of one-electron molecular orbits in the finite system is also shown.
     同时,也揭示多重散射理论与广延系统中通常采用的能带结构理论以及有限系统中的单电子的分子轨道方法之间的关系。
短句来源
     According to the special requirements of dealing with the spatial data,indicating the dynamical direction,stacking and splicing figure layers,and the finite system resource of the port in GPS vehicle navigating system,this paper studied the path topology and integration which fit the integrated scheme of GPS system and put them in practice.
     针对GPS车载导航系统对空间数据的处理、动态方向指示、图层叠加拼接、及车载端口有限系统资源等特定的要求,研究并实施了适应于跨平台的“GPS”系统集成方案的路径拓扑和构架。
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  finite systems
     Real-space renormalization-group transformation of Heisenberg Model for finite systems
     有限系统海森堡模型的实空间重正化群变换
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     ONE-DIMENSIONAL SPIN SYSTEMS (FINITE SYSTEMS)
     一维自旋系统(有限系统)
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     A STUDY OF DENSITY OF ELECTRON STATES FOR FINITE SYSTEMS
     有限系统的电子结构研究
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     Combining our theoretical analysis , we extend Lieb and Mattis's approaches for finite systems. Moreover, the effect of the ground-state degeneracy on the spin status and physical properties are investigated and discussed.
     结合理论分析,我们把Lieb和Mattis的定理发展到有限系统,并在此基础上分析了基态的简并对自旋位形和物理性质的影响。
短句来源
     This result is more accurate than the previous data by analytical approximations and scaling analysis based on finite systems.
     这一结果比以前的解析近似研究和有限系统标度分析的结果更为精确 .
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  “有限系统”译为未确定词的双语例句
     Secondly, aiming at the limitation of Linux kernel in real-time and coarse timing granularity, discussed its timing scheme and interrupt scheme, then realized a High-Resolution-Timer (HRT) which has microsecond timing granularity.
     其次,针对Linux的实时能力有限,系统固有时钟粒度过于粗糙的缺点,本文在讨论比较了两种时钟粒度细化方案的基础上,结合国内外相关领域的研究方案,设计实现具有微秒级定时粒度的高精度定时器(HRT),进一步提高了系统的实时性。
短句来源
     PHASE OPERATOR AND PHASE STATES FOR FINITE ENERGY SYSTEM
     能量有限系统的相位算符与相位本征态
短句来源
     In the paper, the two-dimensional finite compound lattice are taken as the model of clusters. Under conditions of taking interchain coupling and chain terminal effect into account, the tight-binding approximation is used to calculate the energy spectra and the densities of states for the nearest neighbor and the second-neighbor hopping of π electron when the number of site atoms is 16,32,64 and 128, respectively.
     以二维复式晶格作为有限系统的集团模型 ,利用紧束缚近似 ,在考虑链间耦合及链端效应的情况下 ,计算了格点数分别为 16、32、6 4、12 8时π电子在最近邻及次近邻跳跃集团的能谱和态密度。
短句来源
     Based on the theory of mathematical statistics, the widely applied empirical equation method of van Everdingen-Hurst dimensionless water influx rate calculation for infinite radial water drive and finite natural water domain is evaluated. And a new method for calculation of finite confining natural waters' dimensionless water influx rate is then proposed in this paper.
     基于数理统计的原理,评价了目前广泛应用的计算径向水驱无限大及有限系统天然水域vanEverdingen-Hurst无因次水侵量的经验公式方法,进而提出了计算有限封闭天然水域无因次水侵量的新方法。
短句来源
     In ad dition,this approach is not limited to specific source -channel coder pairs,but is truly general to perform well with a wide range of source -channel coder pairs sharing some system resources that are limited.
     并且,该方法并不仅局限于特定的信源-信道编码器对,可适用于任何一种信源-信道编码器对共享有限系统资源的情况,具有很好的通用性。
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  limited system
One-electron states of a 2D spatially limited system
      
In addition, pH rose up to 9.31 after 4 d of decolorization, which was caused by bacterial contamination in the carbon-limited system.
      
We examined offspring demand and parental care in such a benefit-limited system in herring gulls (Larus argentatus).
      
Furthermore, the presence of ppGpp or GDPCP in a Phe-limited system leads to an accumulation of Phe-tRNA, while a Phe-limited system that contains only GTP has negligibly small concentrations of Phe-tRNA.
      
Thus P, and to a lesser extent N, provide a much more sensitive measure of the relative cost of reproduction than C in this nutrient-limited system.
      
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  finite system
A finite system of equations for the approximate filter is derived as the optimal Stratonovich-Kushner filter for a system with finite Peano series.
      
In the given mathematical model of turbulence (in contrast to other models of finite dimensions), the accurate hydrodynamic equation is not replaced by a finite system of coupled ordinary differential equations, and singular initial data are used.
      
The finiteness of the set of limit points obtained by successive projection of an element of Rn on the boundary of the furthest half-space of a finite system of half-spaces with no common points is investigated.
      
We investigate the possibility of obtaining a function which depends essentially on an arbitrary number of arguments from the functions of some finite system in Pk.
      
We introduce a characteristic of the initial finite system, by means of which we express the complexity of obtaining the simplest function of the given number of variables.
      
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  finite systems
Two independent random sets are formed by finite systems of independent random variables uniformly distributed on the unit circle.
      
Spin correlations for various degrees of doping δ=n-1 are in good agreement with the results of exact calculations for finite systems.
      
Experimental investigation of the behavior of the specific heat in finite systems in the vicinity of the critical mixing point
      
Such a regime takes place in numerical simulation, in essentially finite systems, etc.
      
However, the indicated boundaries are " spread" (toward the expansion), because the expansion coefficients for the fields are determined with the use of the reduced (i.e., finite) systems.
      
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The autumnal incidence of the downy mildew of Chinese cabbage in North China occa-sionally caused a serious damage.Overwintered as well as oversummered oospores were con-sidered to be the most important primary source of infection of this disease in Peking,Tien-tsin and other localities of North China.A large amount of oospores was found in the dis-eased leaf-tissues collected from both spring and autumn Chinese cabbage crops.Seedling in-fection by soil-borne oospores from the previous crop had been demonstrated.However,seed-ling...

The autumnal incidence of the downy mildew of Chinese cabbage in North China occa-sionally caused a serious damage.Overwintered as well as oversummered oospores were con-sidered to be the most important primary source of infection of this disease in Peking,Tien-tsin and other localities of North China.A large amount of oospores was found in the dis-eased leaf-tissues collected from both spring and autumn Chinese cabbage crops.Seedling in-fection by soil-borne oospores from the previous crop had been demonstrated.However,seed-ling infection by seed-borne oospores or mycelium was precarious.Some seed samples of theChinese cabbage variety“Chiaochowpai”obtained from Shantung province were contaminatedwith oospores.Apparently such seeds were produced from heavily attacked seedplants.Never-theless,oospores had never been detected in seed samples of various varieties collected fromPeking and Tientsin during 1961-1962.Mycelium was detected to hibernate in seed coats ofsome samples collected from the infected capsules of late grown seed-plants.The phenomenon of the limited systemic infection of the downy mildew of Chinese cabbageseedlings was reported for the first time.This pathogen was revealed to penetrate thehypocotyl,spread upward,pass the cotyledons and finally enter the first pair of true leaves,but never the second pair.The writers were of the opinion that the limited systemic infec-tion of the seedlings constitutes the initial stage of epiphytotics of this disease.

在北京和天津等地调查研究了大白菜霜霉病的初侵染来源问题,并对幼苗的有限系统侵染现象进行了研究。卵孢子是初侵染的重要来源,华北和东北各主要白菜产区的白菜病叶和菜田土壤中存在有大量霜霉病菌的卵孢子。这些卵孢子可以侵染幼苗而引起发病,在田间形成初发病株成为再侵染的来源。田间卵孢子一年不止形成一次,春菜上形成的卵孢子到秋季即可侵染。种子带菌情况因地区而异。山东“胶州白”因种株上易罹病害,莢果组织中的卵孢子可以夹在种子间传播。1961—1962年在京津两地收集的种子上未检查到卵孢子。唯在部分春播采种的种子上,病菌菌丝可潛伏于种皮中并产生孢子囊。以菌丝在留种株上潛伏而在次年带到田间成为春菜初侵染来源的可能性仍需进一步研究。首次报导了大白菜幼苗上 Peronospora parasitica 的有限系统侵染可以达到第一对真叶。病菌从茎基部侵入后,菌丝向上扩展进入子叶和第一对真叶,但不进入第二对真叶。田间最早发生的病株大多是有限系统侵染的。这一发现对了解病害流行起点是有帮助的。

The downy mildew caused by Peronospora parasitica(Pers.ex Fr.) Fr.is a serious disease of Chinese cabbage in North—eastern China.The results of three years study showed that the primary infection of the dis- ease came from the oospores in overwintering leaves and the seeds pro- duced by infected plants.It was demonstrated,through artificial inoculation of cabbage growing on soil with counted oospores,or through raising seed- lings from infected seeds,that systemic invasion of hypocotyls and cotyle- dons took...

The downy mildew caused by Peronospora parasitica(Pers.ex Fr.) Fr.is a serious disease of Chinese cabbage in North—eastern China.The results of three years study showed that the primary infection of the dis- ease came from the oospores in overwintering leaves and the seeds pro- duced by infected plants.It was demonstrated,through artificial inoculation of cabbage growing on soil with counted oospores,or through raising seed- lings from infected seeds,that systemic invasion of hypocotyls and cotyle- dons took place.The mycelia were intercellular in the host tissue,with intracellular haustoria being observed.It was assumed that perennial my- celia were inside the seeds.The percentage of seed transmission of suscep- tible cultivars was rather high. In laboratory tests,oospores germinated successfully at 25℃.The oos- pores had to be washed with running water 7-9 days before germination took place,and contamination was controlled in the incubation period by furaldehyde(100μl/1). When the leaf was inoculated with conidia and cultured in vitro for infection process observation,intercellular hyphae and haustoria were also clearly witnessed.“Culture in vitro”method was effective in maintain- ing pathogens up to 20 days.

1981至1983年进行了白菜霜霉病的初次侵染来源与侵染过程的研究。试验证实,该病的初次侵染来源来自病叶内的卵孢子和带病种子。接种试验表明,病叶内卵孢子经室内保存及冰箱处理或室外越冬后分别进行定量接种,结果幼苗均易发病,并表现有限系统侵染,与播种带病种子出现的病苗症状相同。经组织解剖均发现病子叶与病茎内有大量菌丝和吸器,说明病种子内存在潜伏菌丝,一般感病品种带菌率较高。室内卵孢子发芽试验亦获得成功,卵孢子发芽前用流水冲洗7~9天,发芽适温25℃,用糠醛(100微升/升)可控制污染。用病菌孢子囊接种离体叶和幼苗进行侵染过程观察,同样发现在细胞间隙发育的菌丝,并产生吸器。离体叶培养也是保存菌源的较好方法,保存时间可达15~20天。

In this paper, the author studies a method which reduces the Q-matrix problem of finite system to one-dementional Q-matrix. By this method, some sufficient conditions which are much more practical for the uniqueness, recurrency and ergodicity of finite system Q-process are obtained. At last. we use this method to some finite systems.

本文研究了一种将有限系统Q-矩阵化成一维Q-矩阵的方法,得到了有限系统Q-过程的唯一性、常返性、正常返性的充分条件,并将它们应用于几类有限系统

 
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