查询词典 combinatorial

RNA secondary structure;recursion formula;loops;stacks;combinatorial enumeration

论文导师王天明，论文学位硕士，论文专业计算数学

A simplified activity model for polymer solutions is developed from the thermodynamic relation in this work.The model in- cludes not only a combinatorial term and a residual term but also a free volume one.

根据Gibbs-Helmholtz热力学基本关系式，结合溶液晶格模型推导出适合聚合物体系的活度系数模型，该模型方程含有结合项、剩余项和自由体积项。

This work is a research-level monograph whose goal is to develop a general combination, decomposition, and structure theory for branched coverings of the two-sphere to itself, regarded as the combinatorial and topological objects which arise in the classification of certain holomorphic dynamical systems on the Riemann sphere.

Combinations of Complex Dynamical Systems|复杂的动态系统的结合復雑なダイナミカルシステムの結合这工作那个目标是发展一一般结合，分解，和结构理论分开包括二领域给它自己的一研究水平专题著作，认为是组合和在Riemann 领域上在一定holomorphic动态系统的分类过程中出现的拓扑对象。

Calculating the satisfiable probability, besides being a combinatorial challenge, has appeared as a better way to understand the structure of random SAT problem.

计算可满足概率不仅仅是一个挑战性的组合问题，也是理解随机SAT问题结构的一种较好途径。

It is known that a production sequencing problem in mixed-model assembly line falls into NP-hard class of combinatorial optimization problem and thus a large-sized problem may be computationally intractable.

本文应用一种解大规模组合优化问题，特别是NP完全组合优化问题的有效近似算法——模拟退火算法，来求解混流生产线的投产排序问题，克服了上述缺点。

Poultry Line:Chickencoop washer,Chickencoop conveyor,Anchor chain type auto conveying line,Baths type electric numb machine,Fluffy machine for duck and goose,Air-blowing type Immersion Scalding Device,Percolation type Immersion Scalding Device,Chicken headfeather shedder,"A"type feather shedder,Vertical combinatorial Feather shedder,Wax dip device,Coldp edwax,Chicken pawfeather shedder,Automatic paw cutter,Auto unhooking device,Spiral p-cooler,Carcass draining machine,Subdividing conveying line,Chicken paw dehuller,Gizzards cutter,etc.

家禽线：鸡鸭鹅笼清洗机、鸡鸭鹅笼输送机、锚链式各类自动输送线、水浴电麻机、鸭鹅用松毛机、汽鼓式浸烫机、喷淋式浸烫机、鸡鸭鹅头脱羽机、A型粗脱羽机、立式粗脱羽机、浸蜡机、冷蜡机、鸡鸭鹅爪脱羽机、自动切爪机、自动脱钩装嚣、螺旋预冷机、白条沥水机、分割输送线、鸡打爪机、剥胗机等。

Poultry Line: Chickencoop washer , Chicken coop conveyor , Anchor chain type auto conveying line , Baths type electric numb machine, Fluffy machine for duck and goose, Air-blowing type Immersion Scalding Device , Percolation type Immersion Scalding Device, Chicken head feather shedder ,"A" type feather shedder , Vertical combinatorial Feather shedder , Wax dip device, Coldpre edwax , Chicken paw feather shedder , Automatic paw cutter, Auto unhooking device, Spiral pre-cooler, Carcass draining machine , Subdividing conveying line, Chicken paw dehuller, Gizzards cutter, etc.

家禽线：鸡鸭鹅笼清洗机、鸡鸭鹅笼输送机、锚链式各类自动输送线、水浴电麻机、鸭鹅用松毛机、汽鼓式浸烫机、喷淋式浸烫机、鸡鸭鹅头脱羽机、A型粗脱羽机、立式粗脱羽机、浸蜡机、冷蜡机、鸡鸭鹅爪脱羽机、自动切爪机、自动脱钩装嚣、螺旋预冷机、白条沥水机、分割输送线、鸡打爪机、剥胗机等。

Shortest path problem is a basic problem in the combinatorial optimization. The objective in the network is time-varying.

在组合优化过程中，往往需要获得从起点到终点之间的最短路，而其所考虑的目标可能是一个与时间相关的变量。

The author mainly studies the probabilistic representation of a special combinatorial number. Meanwhile, some special values of both kinds of Stirling numbers are obtained. Some new recurrence formulas and identities related to both kinds of Stirling numbers are found.

作者主要研究了一种特殊组合数的概率表示及其应用，得到了Stirling数的一个性质，推导出了其他有关Stirling数的递推公式并且发现了新的递推公式，并利用这些递推公式得到了几个恒等式，从而丰富发展了已有的一些结果。

Methods The operating astral lamp employs specially-designed LED as the main light source, and IC as the control circuit All the components are arranged in a combinatorial structure.

用特定的LED作为手术无影灯的主发光源，用IC作控制电路，各部件采用组合式结构。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。