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the criterion
相关语句
  准则
     General equations for the criterion of nucleate boiling are obtained: N_u= A(G_rP_r)~m[Eξ(P)]~n, N_u=AP_r~(m_1)R_c~(m_2)[Eξ(P)]~(m_3), which prove to be satisfactory when used to correlate experimental results.
     提出了泡状沸腾放热的对流汽化机理,获得了描述泡状沸腾放热的普遍准则方程式 N_u=A(G_rP_r)~m[Eξ(P)]~n; N_u=AP_r~(m_1)R_e~(m_2)[Eξ(P)]~(m_3)。
短句来源
     An electric supercharger is matched on CA6DF2- 24G diesel engine according to the criterion,and experimental research is carried out.
     按此准则对CA6DF2-24G型柴油机匹配了电动增压器,并进行了试验研究。
短句来源
     The criterion layer includes three factors composed of ecological adaptation(B_1), ecological function(B_2), landscape function(B_3).
     准则层包括生态适应性(B_1)、生态功能(B_2)、景观功能(B_3)3个因素。
短句来源
     3. SF-36 was used as the criterion to evaluate the criterion validity, the r=0.613(N=46), a= 0.01(two-sided),P=0.000;
     3.准则相关效度将患者的SAQ的总得分与SF一36总得分做相关分析,得出r=0.613N二46含0.01(双侧)片0.000:结构效度对19个条目进行因子分析。
短句来源
     The criterion for searching the optimum parameters of the ATMD/AMTMD is defined as the minimization of the variance of displacement or acceleration response of the structure with the ATMD/AMTMD.
     定义ATMD/AMTMD最优参数准则为:结构-ATMD/AMTMD系统的位移和加速度响应方差的最小化。
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  判据
     The criterion for liver and lung cancer diagnosis was estab-lished using the intensity at598nm,I 598 and the relative intensity,Tat615nm(T=(I 615 -I 598 )/I 598 ). If I 598 ≥4×10 6 ;
     根据598nm处的荧光强度I598和615nm处荧光峰的相对荧光强度T=(I615-I598)/I598建立了肝癌和肺癌诊断判据,即当I598≥4×106;
短句来源
     It is pointed out that the criterion of the equilibrium constant is lgKθ_ 298=16.935n(φ_1-0.561) and the criterion of changing potential under constant pressure and equal temperature as well as under the normal condition is ΔGθ_ 298=-(φ_1- 0.561)nF.
     标准条件下反应式恒压和等温电位变化的判据为ΔG2θ98=-(φ1-0.561)nF,平衡常数判据为lgK2θ98=16.935n(φ1-0.561)。
短句来源
     Experiment and Study on the Parameter of the Criterion G/R~(1/2) For Prediction the Formation of Porosity
     缩松预测判据G/R~(1/2)的试验研究
短句来源
     The criterion of the equilibrium: lgK 298 =16.935n( +0.128) is also given.
     同时也提出了硫代硫酸盐浸金的平衡常数判据:lgK_(298)~θ=16.935n(φ_1+0.128)。
短句来源
     According to liquid chromatography experiments and theory,the criterion (Δ_1=V_(R(1))-V_(R(CD_2D)))has been advanced in this paper.
     本文以液相色谱实验及理论为依据,提出了判据△_t(=V_R(1)—V_R(D_2o)).
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  该准则
     With a simple form, the criterion can reflect the concrete strength precisely not only under uniaxial stresses but also under multiaxial stresses.
     该准则的特点是:形式简单,不仅能正确反映混凝土单轴应力状态下的强度,而且能很好地反映多轴应力状态下混凝土的强度.
短句来源
     The criterion consists of the following:1)Define a combination parameter of maximum strain ε 1 on the plane of perpendicular to the radial direction of crack propagation and a polar vector to be principal strain factor 1 , the direction of the maximum value of 1 is one of the crack propagation ;
     该准则为 :1 )定义垂直于裂纹扩展径向平面上的主应变ε1及极径 r的组合量 2πrε1为主应变因子ε1,裂纹将沿主应变因子取得最大值的径向扩展 ;
短句来源
     According to the criterion, the optimum design can be achieved in the die which has both the minimum size and the uniform strength.
     按照该准则设计模具,可保证模具各部分的强度以最佳匹配方式满足使用要求,同时使模具尺寸达到最小,从而实现模具的最优化设计。
短句来源
     A yield point design criterion was pro-posed for the fatigue design of cylinder components withthick walls based on static yield points of materials throughexperiments,and the safety margin of fatigue design wasdiscussed with the criterion.
     通过实验研究,提出了按材料的静态屈服点进行厚壁圆筒形构件疲劳设计的屈服点设计准则,并讨论了按该准则进行疲劳设计的安全裕度。
短句来源
     A criterion for the positive definiteness of symmetric 3 × 3 block-matrix A is presented. Applying the criterion,we derive the necessary and sufficient conditions for that the matrix equation(AT XA,B TXB) =(C,D) has positive definite solution. The expression of the general solution is given.
     给出了一个3×3分块矩阵的正定性判别准则,应用该准则,导出了矩阵方程(AT XA,B TXB)=(C,D)有正定解的充要条件及一般表达式.
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  “the criterion”译为未确定词的双语例句
     On the Criterion Equation of Fluidization and Determination of Minimum Fluidizing Rate
     流态化准数方程及最小流化速度的确定
短句来源
     The Criterion Algorithm of Relation of Implication between Periodic Orbits(Ⅰ)
     周期轨间蕴含关系的判定算法(Ⅰ)
短句来源
     The Criterion of the G.K.S. Stability with the Double Boundaries Value Problems for the Hiperbolic Difference Approximation
     双曲型双边值差分逼近G.K.S.稳定条件的代数形式
短句来源
     A Method to Optimize the Criterion of Design Flood for Flood Prevention Projects
     防洪工程防洪设计标准的经济优化分析
短句来源
     The Criterion Algorithm of Relation of Implication between Periodic Orbits (Ⅱ)
     周期轨间蕴含关系的判定算法(Ⅱ)
短句来源
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  the criterion
The criterion is constructive and can be implemented.
      
The results can be applied to the well-known nonlinear oscillating equation ?+f(x)h(?)?+g(x)k(?)=0, and the criterion of the non-existence of periodic solutions associated with this equation is obtained.
      
The least redundancy coverage strategy (LRCS) strategy takes the smallest redundant coverage as the criterion whose goal is to maximize the lifetime of the sensor network.
      
With helix angle chosen as parameter, the criterion for the existence of meshing boundary line on the surface of TI worm gearing is derived.
      
The competition and selections of the PaS patterns induced by the presence of multiple topological symmetries of the network are studied in terms of the criterion.
      
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In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into...

In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the given final region of states. Some conclusions are obtained from the maximum principle by using transversal conditions of optimal trajectories in terminal points, and the particular properties of the stated problem are pointed out. The case of linear dif-ferential equations with integral quadratic functional criterion is investigated in detail.Further, in the second part the fundamental properties of isoloss regions, the rela-tions between the isoloss region and optimal control functions are indicated. As a direct result a partial differential equation determining the optimal loss-function J (x) is found and the connection between function J (x)and optimal vector control function u (x) is also stated. The methods proposed are practically the extension of the me-thods used by us for designing time optimal control systems as seen in [5, 6 ,7].Finally, an example is illustrated with optimal trajectories shown in phase plane.The necessary numerical data is calculated by an analog computer with high accuracy.

文中研究了具有公式(3)表示的一般正积分泛函的最优控制系统的综合问题.在第一部分中研究了具有控制参数的一阶微分方程组.控制系统的终点状态为n维相空间内的某一逐段光滑边界的闭性区域Ω.文中指出了根据极大值原理和轨道终点的横截条件寻找引到Ω的所有最优轨迹的方法.这里详细地研究了具有二次泛函和被积函数中不明显含有控制参数的质量指标泛函的线性方程情况.在文中第二部分研究了等损耗区的主要特性.指出了等损耗区与最优控制函数之间的关系.导出了求算最优损耗函数J(x)的偏微分方程,以及这一函数与最优控制函数u(x)的关系.上述方法是我们曾在文献[5,6,7]中用过的最优快速系统的综合方法的推广.文章最后举有例证.

The dependence of the entropy of a homogeneous system on the composition is investigated with the help of a reversible adiabatic process which allows the change of composition by means of a semipermeable wall. The conditions of equilibrinm for phase transition and for homogeneous chemical reaction are derived in a new way. Next the criterion of minimum energy for constant entropy and volume is derived from the principle of increase of entropy. This criterion is then applied to obtain the conditions...

The dependence of the entropy of a homogeneous system on the composition is investigated with the help of a reversible adiabatic process which allows the change of composition by means of a semipermeable wall. The conditions of equilibrinm for phase transition and for homogeneous chemical reaction are derived in a new way. Next the criterion of minimum energy for constant entropy and volume is derived from the principle of increase of entropy. This criterion is then applied to obtain the conditions of equilibrium and stability with the help of Lagrange's multipliers. The conditions of stability are expressed in several alternative forms. Next the equilibrium properties of a binary system arc considered, and some types of phase diagram are explained by means of equations. The theory is extended to the general heterogeneous equilibrium of a system consisting of any number of independent components. A system of equations for the change of temperature, pressure, and composition are obtained and are solved by means of determinants. Next Planck's theory of a binary solution is extended to a solution consisting of several solnte components, with the same conclusion regarding the lowering of freezing point as for a binary solution. Finally Planck's theory on the number of coexisting phases for aone-component system is extended to a system consisting of k components with the result that a state with, σ coexisting phases is more stable than one with σ-1 phases: where σ is an integer not greater than k + 2.

本文首述如何应用一半渗透之壁使一物体所包含各种分子之数改变,因之决定此物体之熵与其各种分子数之关系,由此关系极易推出一物体在改变其形态时,如汽化凝结等,所应适合之平衡条件。且若形态不变,而发生内部化学作用时,其平衡条件亦易推得。 次述如何由熵之增加原理推出能量最小之法则,然後应用此法则,辅以拉革兰氏之不定乘子,以求得一物体之普遍平衡与稳定之条件。其稳定之条件且以各种不同之形式表示之。 继讨论二元物体在平衡时之性质,随之以多元物体之性质,求得一组方程式以决定当此物体之性质改变时,其温度压力及各种分子之数如何改变。曾特别注意及溶液之性质,对於融点之降低与沸点之升高有一普遍之证明。 最後推广卜朗克氏关於并存形态之理论於多元物体,得与卜氏相似之结论。

The physical significance of criterion of similarity (ωd)/ν=idem (D) is that the regime of boundary layer around the moving sand particals in model is the same as that in prototype.While the physical significance of criterion (u_(*0)d)/ν=idem (B) is that the regime of boundary sub-layers on the movable bed in model is the same as that in prototype. The above two formulas play an important role in unifying the criteria of similarity for bed-load and suspendedload movement. According to the results...

The physical significance of criterion of similarity (ωd)/ν=idem (D) is that the regime of boundary layer around the moving sand particals in model is the same as that in prototype.While the physical significance of criterion (u_(*0)d)/ν=idem (B) is that the regime of boundary sub-layers on the movable bed in model is the same as that in prototype. The above two formulas play an important role in unifying the criteria of similarity for bed-load and suspendedload movement. According to the results of analysis in this paper,the criteria of similarity for bed- load movement and suspended particles are identical and may be summarized as follows: d_r=(H_r~2)/((ρ_s-ρ)_rL_r); (3-3) and d_r=l/((ρ_s-ρ)~(1/3)).(B)_2 The above conclusions apply to sand particles with diameters less than 2 mm.only. They apply to sand particles with diameters greater than 2 mm.also if the similarity of ripple formation must be ensured.

相似准则(ωD)/v=idem (D)是保证模型及原体内泥沙周围边界层流态相同的相似条件。而相似准则/v=idem (B)则是保证模型内床面边界层流态相同的相似条件。上述二相似条件在统一悬沙运动及底沙运动的相似律上,起有巨大的怍用。根据分析,底沙运动和悬沙运动的相似准则是可以统一的。这种相似准则是d_r=(H_r~2)/((ρ_s-ρ)_rL_r); (3-3)及d_r=1/((ρ_s-ρ)_r~(1/3)); (B)_2一般说来,上述讨论仅对粒径小于二毫米的细沙才有意义。但在考虑到沙波阻力的意义上,则它们对粒径大于二毫米的粗沙也是有意义的。

 
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