英语释义

• either positive or zero

片语

nonnegative integer[数] 非负整数

almost nonnegative几乎非负

positive正数；[摄] 正片

nonnegative constants非负常数

nonnegative irreducible非负不可约

plus（非正式）而且，另外；加

英汉例句

• All nonnegative energies are allowed.

  所有非负能量都是允许的。

• An algorithm with regularization constrains for nonnegative matrix factorization (RCNMF) is proposed.

  提出一种带有正则约束的非负矩阵分解算法(RCNMF)。

• In this paper, we present an algorithm to accurately compute the exponential of a triangular essentially nonnegative matrix.

  本文给出了一个计算本质非负三角阵的指数函数的高精度算法。

• By using an inequality relation between a scalar curvature and the length of the second fundamental form, it is proved that sectional curvatures of a submanifold must be nonnegative (or positive).

  利用数量曲率与第二基本形式长度之间的一个不等式关系，证明了其子流形的截面曲率一定非负(或者为正)，并将此应用到紧致子流形上，得到一些结果。

• We discuss the problem of portfolio investment with risk minimization subject to nonnegative investment proportional coefficient.

  研究非负投资比例系数约束条件下，实现风险最小化的组合证券投资问题。

• Its optimal solution is obtained by finding a nonnegative solution of compatible equations.

  其最优解是通过求一个相容方程组的非负解而得到。

• Inspired by the nonnegative matrix factorization algorithm, we put forward an fuzzy text clustering method based on nonnegative factor analysis.

  本文借助于非负矩阵分解算法，提出了一种基于非负因子分析的模糊文本聚类方法。

• The present paper studied the global existence of nonnegative solutions of one-dimensional Newtonian filtration equation with more general boundary fluxes term, reaction, diffusion and convection.

  讨论具有一般形式的对流项、扩散项、边界流项以及反应项的一维牛顿渗流方程初边值问题非负解的整体存在性。

• Because of the phenomenon that the negative self-scattering cross sections cause the negative probability sample, a nonnegative corrected method is put forward and validated by the benchmark problems.

  针对输运修正引起的自散射截面导致的负概率抽样现象，提出了一种非负修正方法，并用基準计算验证了该方法的正确性。

• The essential content of dissipative system is that a nonnegative energy function exists, which makes the energy consumption of the system is less than the energy provision.

  耗散性的实质内容就是存在一个非负的能量函数，使得系统能量损耗总是小于能量的供给率。

• One of well-known results is that the greatest eigenvalue of a nonnegative matrix lies between the smallest and the largest row sum.

  一个着名的结果是一个非负矩阵的最大特征值在它的最小行和与最大行和之间。

• The special matrices included inverse M-matrices, inverse Z-matrices, tridiagonal matrices and nonnegative irreducible matrices.

  其中重要的有特殊矩阵Z-矩阵、逆M-矩阵、三对角矩阵、非负不可约矩阵等。

• Besides, this paper gives a sufficient and necessary condition of the existence of normal process under the strictly nonnegative definiteness condition.

  此外本文还给出了严格非负定条件下实正态过程存在的一个充要条件。

• By using a direct analysis technique, the existence of nonnegative solutions was established for singular semi-positone problems with p-Laplacian.

  用纯分析的方法给出了一类单部件可修系统动态非负解的存在唯一性和单调稳定性证明。

• Returns a nonnegative random number less than the specified maximum.

  返回一个小于所指定最大值的非负随机数。

• Under the simple linear deteriorating, nonnegative start and stop lag deteriorating rates are introduced so as to combine jobs and construct composite jobs satisfying precedence relations.

  在作业加工时间简单线性恶化下，提出作业的非负开始和停止延迟恶化率，构造了满足约束条件的复合作业。

• We present a simple model of a network of sources competing for a Shared bandwidth based on nonnegative matrices theory.

  利用非负矩阵理论提出了一个多源竞争共享带宽的网络模型。

• A parameterization of the model based on first order B-splines provides nonnegative matrix of the linear systems.

  以一阶B样条将模型参数化，保证了线性化问题中系数矩阵的非负性。

• In this paper, we consider an independent random variable group's sequence with the value of the nonnegative integers set.

  在本文中，考虑一个独立取非负整值随机变量组列。

• The coefficient of friction can be set to any nonnegative value.

  可以设置摩擦系数成任何非负值。

• The dissipativity and global attracting set of a general class of neural networks with continuously distributed delays was studied by using nonnegative matrix and differential inequality technique.

  利用非负矩阵和微分不等式技巧，在一般的条件下，获得了关于此类系统解的耗散性的新判据，并估计出超球形全局吸引集的边界。

• The paper raises and proves an essential condition of volumetric property of nonnegative secondary estimation of deviation and variance in linear model.

  文中给出并证明了在椭球约束条件下线性模型中，误差方差的非负二次估计的可容许性问题的一个必要条件。

• This paper gives an effective algorithm for deciding of irreducibility and aperiodicity of nonnegative matrices.

  本文为非负方阵不可约性和非周期性的判定给出了实现算法。

• It is known that every irreducible doubly nonnegative matrix has a doubly stochastic pattern.

  已知任何一个不可约双非负矩阵都具有双随机型。

• Another simple algorithm of problems with nonnegative constraints is presented in this paper.

  本文给出了非负约束问题的另一个简便算法。

• Thus the large time behaviors of partial nonnegative solutions of P(1) are cleared up. As an application, some valuable results in Population Dynamics are obtained.

  由此弄清了部分P（1）非负解的渐近状态，作为应用，得到一些在生物群体运动中有参考价值的结果。