用策略

In addition, access control policies of aggregated resources can be formulated as expressions of the algebra. Several algebraic properties of policy expressions are discussed. It shows that the algebraic properties of policy expressions can be used to verify whether policy composition results meet the protection needs of each party.

用代数表达式形式化地描述聚合资源的访问控制策略，讨论了策略表达式的若干代数性质，说明可借助策略表达式的代数性质去验证策略合成结果是否符合各方对聚合资源的保护性需求。

In order to explore the relationship between the Artemisia frigida Wild. and the intake mass, this reaserch took sheep as reaserch object, using mixture of pasture containing A. frigida in different scales to feed sheep, to analyse the intake mass of the sheep, intake behavior and diet selection strategy, combined with Thermal-desorption Cold Trap/Gas Chromatography/Mass Spectrum to analyse the VOCs from the overground part of A. frigida in July and to identify the compoments; and its major components cineole,α-terpinol ,α-pinene andβ-pinene were added to the sheep feed, to analyse the effects of different monomers of VOCs from A.

为了探讨冷蒿与家畜采食量的关系，本实验以绵羊为研究对象，用含有不同比例冷蒿的混合牧草饲喂绵羊，分析了绵羊的采食量、采食行为及食性选择策略，结合热脱附―气相色谱―质谱联用技术对冷蒿地上部分7月份释放气体进行了组分分析和鉴定；并将其主要成分桉树脑、α-萜品醇、α-蒎烯和β-蒎烯添加到绵羊的饲料里，进一步分析了不同冷蒿挥发物单体对绵羊采食量、采食行为及食性选择策略的影响。

First, we give a differential game model;then we identify a no cooperative equilibrium of a differential game played with Markovian strategy and analyze the strategy .

首先，文章建立了微分对策模型，然后，用马尔可夫策略求解了非合作微分对策，求得了马尔可夫静态策略，同时对策略的结果进行了分析和综合。

A fine-grained genetic algorithm based algorithm which is for the parameters optimization problem of agent model is proposed. The fine-grained genetic algorithm is used to solve the parameters optimization problem of agent model. As to the parameters optimization problem of the agents colony model, the first step is to define the concept of "the parameters mode of the combat agents colony" to describe the parameters of the combat agent colony model. Then the genetic algorithm is used to solve the optimization problem with the parameters mode of the combat agent colony model as the genetic individual. Besides the algorithm, the algorithm dispatch tactic is also considered. And the two level sequence dispatch tactic and the two level nesting dispatch tactic are put forward for those complex parameters optimization problem. At last, the model parameters optimization under antagonism codition is studied. The means to solve this problem is to translate it into a kind of antagonism problem, then use the competitive co-evolutionary genetic algorithms to solve it.

其中：提出了一种基于细粒度模型的作战智能体模型参数优化求解算法，用细粒度模型遗传算法求解作战智能体模型参数优化问题；提出了"作战智能体群体参数模式"的概念，对作战智能体群体模型参数进行形式化描述，再以作战智能体群体参数模式为遗传个体，应用遗传算法求解作战智能体群体模型参数的优化问题；研究了上述优化问题求解算法的调度策略，提出了分层模型参数优化算法的双层顺序调度策略和双层嵌套调度策略，解决复杂的模型参数优化问题；将对抗条件下作战模型参数的优化问题转化为一种对抗性问题，应用竞争性共同进化遗传算法，进行求解。

Undifferentiated marketing strategy: A firm might decide to ignore market segment differences and go after the whole market with one offer.

无差异市场营销策略：无差异市场营销策略是指企业不考虑细分市场间的差异，把市场视为同质市场，用单一产品、单一营销组合方案开展市场营销活动的营销策略。

This dissertation describes stochastic dynamic demand using Wiener process, builds up an optimal control model of pricing, and proposes the benchmark of estimating and adjusting price for maximizing total profit during product life cycle.

本文用Wiener过程描述随机需求的动态过程，建立了定价策略的随机最优控制模型，采用动态规划法，给出了以产品全寿命期总利润最大化为目标的价格策略模型，并在此基础上给出了价格调整策略判断依据。

Simulation results are included to show that the optimal policy given by this method can well approach to the accurate one given by value iterative method on the case of having complete information, and the constringent rate of policy is quickly than others.

仿真表明，该算法所求解的控制策略与用值迭代法在模型已知的情况下，所求得的最优策略非常逼近，且该算法使得策略的收敛速度大大地加快了。

Chapter three conducts the concrete analysis of the strategic employment of presupposition in courtroom cross-examination generalized from the transcripts of courtroom recordings collected. The strategies detected are presupposition triggers, such as definite descriptions, factive verbs, attributive clauses, adverbial clauses of time, questions, etc, and sham pragmatic presupposition (especially intentional sham pragmatic presupposition).

第三章对预设策略在法庭交叉询问中的应用作了具体的分析，其策略主要包括前提触发语(确定性描述、定语丛菊等)和虚假语用预设(尤其是故意的虚假语用预设)。

The author analyzes the obstacles barricading the market ing of the handicrafts of Yunnan minority women and discusses the government policies,the development policies in other places,their practical value and market-related aesthetics. The author hopes this analysis will help the development of the tourism resources in the minority areas and the adjustment of the industrial structure in the countryside,and offer more job opportunities for developing Yunnan into a prosperous tourism province.

对云南少数民族妇女手工艺品进入市场的阻碍因素进行梳理，有针对性地在政府政策介入策略、异地开发策略、器用价值与市场审美观结合策略、宣扬少数民族妇女手工艺品的文化内涵策略等方面进行研究，将有助于少数民族地区文化旅游资源的开发、农村产业结构的调整和非正规农村就业群体的建立，也将为云南建设旅游文化大省提供有益的参考。

In the energy-utilization analysis stage, based on the improved shiftwork targeting method, the top-level analysis of lowtemperature process system and the overall energy integration strategy of lowtemperature separation process are used to analyze, diagnose and improve the energy-utilization of low-temperature process system, specially the lowtemperature separation system.

在用能分析阶段，结合低温过程系统顶层分析方法和低温分离过程系统整体能量集成策略，以减少冷冻系统轴功为目标，并辅以经济性分析，侧重于低温分离过程系统的能量集成进行低温过程系统用能的分析、诊断和调优；在复合式方法的用能优化阶段，则根据用能分析阶段所得调优结果，采用分层—逐级式低温换热网络与冷冻系统集成优化方法，以换热网络与冷冻系统总费用最小为优化目标，对低温换热网络与冷冻系统进行集成优化。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。