Harvesting problem of critical depensation systems;
临界退偿系统的捕获问题
In this paper,we deal with the stability of equilibrium of critical depensation sys-tems and imply the conditions of aximum sustainable yield.
本文研究具有临界退偿特性生物种群的动力系统平衡点的稳定性，导出了获得最大持续产出的条件。
This paper discusses the development of linear critical depensation system to obtain optimal harvest effort and corresponding species level,and the method to get continuous maximum yields,analyzes the relationship between yield and effort,and elaborates the protection measure of this frail population.
讨论了线性捕获下临界退偿系统的开发,得到了最优捕获努力量和相应的种群水平以及如何获得最大可持续产量的方法,分析了产量-努力量关系,并阐述了对这一脆弱种群的保护措施。
Existence and Regularity of Nonnegative Solution of a Singular Quasi-linear Isotropic Elliptic Boundary Value Problem
具有奇性的拟线性边界退化椭圆边值问题正解的存在性及正则性
Doubly Degenerate Parabolic Equations with Nonlinear Inner Sources or Boundary Flux
具有非线性源或边界流的双重退化抛物型方程
Combination Boundary of Three Kinds of Risk Assets of Variance - Covariance Matrix Degeneration;
方差-协方差矩阵退化的三种风险资产的组合边界
Buckling and Post-Buckling Strength of Shear Panels Degraded by Near Border Cracks
边界裂纹导致的剪力墙板性能退化时的屈曲和后屈曲强度分析
With the retreat of this boundary the cohesive bonds gradually yield.
随着这种边界的后退，凝聚性结合逐渐屈服。
BVP for a Degenerate Parabolic Equation
一类退化抛物方程的边值问题(英文)
Study on Eco-environment Degradation in the Northeastern Margin of the Qinghai-Tibetan Plateau;
青藏高原东北边缘生态环境退化研究
Study on Boundary Layer Effect in Indirect Regular Boundary Element Analysis
间接规则化边界元分析中边界层效应的研究
Transforming Three Dimensional Magnetic Data on an Arbitrary Surface into a Plane and Boundary Correction With Boundary Element Method
边界单元法三维磁场曲化平及边界改正
Belabored from all sides, the Germans now made a general withdrawal toward their own frontiers.
德军在四面八方的痛击下，实行总撤退，直至德国本土边界。
Determinants of Firm Boundaries:"Internalization" and "Externalization"
企业边界的确定:“内部化”与“外部化”
"Centralization" and "Marginalization" of Interface between Campus and City
大学校园城市界面的“中心化”与“边缘化”
Boundary Value Problems of the Higher Order Singular Ordinary Differential Equations (Ⅰ)──the Non-Degenerative Case
高阶奇性常微分方程的边值问题（Ⅰ）──—非退化情形
THE NATURAL BOUNDARY REDUCTION FOR SOME ELLIPTIC BOUNDARY VALUE PROBLEMS WITH CONCAVE ANGLE DOMAINS
凹角型区域椭圆边值问题的自然边界归化
Trigonometric Wavelet Methods Based on Natural Boundary Reduction for Some Elliptic Boundary Value Problems;
椭圆边值问题基于自然边界归化的三角波方法
STUDY ON SLOPE STABILITY AND OPTIMIZATION OF BOUNDARY PARAMETERS UNDER CONDITION OF COMBINED OPEN-UNDERGROUND MINING
露井联采下边坡稳定性及其边界参数优化研究
There is a thin line between optimization and spamming and where this boundary should be.
有一个瘦小的界限,优化和滥发而这一边界应.
Existence of Boundary Value Problems of Solutions for a Class of Degenerate Parabolic Equations;
一类退化抛物型方程半无界问题解的存在性