查询词典 efficiency factor

Dredging grab is a very important component of dredger, the enhancement of its working efficiency, will be helpful to the dredging efficiency directly, and also will enhance the capability and working efficiency of the dredger, this is meaningful to the dredging industry.

作为挖泥船的重要组成部分之一疏浚抓斗的挖掘效率的提高，将从源头上影响挖掘的效率，提高挖泥船的工作能力和效率，这对于疏浚有着现实的意义。

Some conclusions are followed:(1)the reaction ratio of boron is 12% in primary combustion;(2)the degree of agglomeration can be decreased adopting boron coated with AP;(3)the content of oxygen is very important for afterburning efficiency;(4)the afterburning efficiency will be changed with different air-gas ratio;(5)the head distance of after-burning chamber is increasing, the circumfluence in the head of after-burning chamber is stronger and the distribution of fuel backward the after-burning chamber is more well-proportioned.(6)the combustion efficiency of DR will be improved by increasing the area of fuel nozzle.(7)the angle between dual air-inlets have complex influence with the combustion of DR.

通过本项研究，取得如下结论：（1）一次燃烧硼反应比例在12～15％之间；（2）AP包覆硼，可以降低硼结团度，有利于一次燃烧喷射效率的提高，也有利于硼在补燃室进行二次燃烧；（3）进气空气中的氧含量对二次燃烧非常重要；（4）对于一定配方的含硼富燃推进剂，不同的空燃比，二次燃烧效率不同；（5）补燃室头部距离的增加能增强补燃室头部回流以及提高燃料在补燃室后段分布的均匀性；（6）在一定范围内，增加一次燃气喷嘴面积能提高冲压发动机燃料的燃烧效率；（7）进气道夹角对补燃室内燃料的燃烧影响复杂。

The test results show that, the drag bar pull and efficiency coefficient is increasing with the wheel width and diameter. The draw bar pull increased with the rug height, but the efficiency coefficient reduces when the slip radio is bigger than 20%. The draw bar pull and efficiency coefficient will reduce with the rug distribution incereases when the rug distribution is more than 20%.

结果表明，当增大驱动轮宽度和直径时，其挂钩牵引力和效率系数都呈增大趋势；增大驱动轮的轮刺高度，挂钩牵引力增大；当滑转率小于20%时，效率系数随着轮刺高度的增大而增大，而当滑转率大于20%时，效率系数随着轮刺高度的增大而减小；增大驱动轮轮刺密度时，其挂钩牵引力和效率系数随之先增大后减小。

The left ventricular meets the optimal efficiency principle at systolic state,we utilize the differ-ential geometry and differentiable dynamics to analyse the model and inverts it to the linear space for optimal control theory solution of optimal efficiency of ejective blood-flow which meets the physiology of optimal efficiency.

结果 在左心室的收缩最优效率原则时候，可应用微分几何与微分动力学数学分析法，将模型转换为线性空间下最优控制理论求得射血流量。

A 3 factorial pot experiment, with 2 phosphorus levels, 3 soil water contents and 4 winter wheat cultivars was designed to compare the P efficiency, P uptake efficiency and P use efficiency of different cultivars at Olsen P 3 2 mg·kg 1 of soil, and as influenced by soil water content.

选用在土壤磷水平为 5～ 7mg P.kg- 1土的条件下筛选出来的不同磷效率的 4个冬小麦品种，采用盆栽试验研究了有效磷为 3.2 m g P.kg- 1土时的磷效率、磷吸收效率、磷利用效率及土壤水分对这些指标的影响。

Aimed at the low screening efficiency of Aiyou Coal Preparation Plant,some technical reforms were done,namely,proper coal feed rate,fitting position of feed trough and regular analysis of screening efficiency ,and the screening efficiency was obviously increased.

针对艾友矿选煤厂筛分效率低的问题，采取制定合理给煤量、合理布置筛网、合理布置给料溜槽和定期取样分析筛分效率等技术措施，使筛分效率得到明显提高。

This paper main research results were shown as follows:(1) We put forward Chinese Ports technical efficiency, cost efficiency and X efficiency measurement systems considering the influencing factors such as freightage quantity.

论文的主要研究成果如下：(1)构建了考虑货运量等影响的中国港口技术效率、成本效率和X—效率测度体系。

A new solution concept for multiobjective optimization and decision making──rel-ative efficiency and weak relative efficiency are proposed. Their relationships with the Pareto effi-ciency are discussed ,and the geometric meaning and economic interpretation for relative efficiency and the existance theorem for relative efficient solution are give.

就多目标优化与决策问题，本文提出了一种解的新概念──—相对有效性和弱相对有效性，并讨论了它们与Pareto有效性之间的关系，给出了相对有效性的几何意义与经济解释及相对有效解的存在性定理，根据这一新概念，设计了一种多目标决策分析方法──—相对有效性决策法。

Finally, it analyses the time complexity of the algorithm and researches how it is influenced by culture operator.3、The paper presents the evaluation standard of the GA's application capability. Basing on characters such as continuity, multi-peak, vibration, randomicity as well as large-scale, five functions are selected to test search ability and robustcity of co-evolution algorithm. Finally, it analyses the simulation result and researches the influence of algorithm brought by culture operators.4、Basing on the concept of collection overcast, it researches the task distribution issue and constitutes delaminated math model on task distribution issue. It puts out the co-evolution algorithm of subtask's decomposing. The experiment compare IGA、SGA to CN and validates the efficiency of co-evolution algorithm on the NP completeness issue.5、Being aim at the optimization issue of load of antenna near ground, it combines many GA strategies and puts forward strategic meme. And it puts out co-evolution algorithm of load of antenna design. And it emulates the optimization design of load of antenna near ground. Finally, it valuates the co-evolution algorithm's efficiency on the continuum search issues of multi-variable and multi-peak value.6、Being aiming at the knowledge of image model matching, it adopts single meme and real code. It puts out fast co-evolution matching algorithm strategy. Basing on NPROD resemble measurement, I emulate the indiscrimination model matching and discrimination model matching. Finally, it valuates the co-evolution algorithm's efficiency on the real code and real time search issue.

分析了算法的时间复杂度，研究了文化算子对算法时间复杂度的影响。3、提出了GA的应用性能评价标准，从连续性、多峰性、随机性、振荡性、广域性多个角度出发选择五个测试函数，对共同进化算法的搜索性能和鲁棒性作了函数优化的性能测试，分析了仿真结果，研究了文化算子对算法的影响。4、基于集覆盖的概念，研究了MAS中的任务分配问题，建立了任务分配问题的分层数学模型，给出了子任务分解共同进化算法，实验比较了IGA、SGA、CN，验证了共同进化算法对NP完全问题的有效性。5、针对近地天线加载优化设计问题，结合多种改进GA策略，提出了策略型拟子，给出天线加载设计的共同进化算法，对有耗半空间对称偶极子天线加载优化设计作了仿真实验，验证了共同进化算法对多变量多峰连续搜索问题上的有效性。6、针对图像模板匹配问题的领域知识，采用单类拟子和实数编码，给出快速共同进化匹配算法策略，基于NPROD相似度测度，仿真试验了无差别和有差别模板匹配，验证了共同进化算法对实数编码和实时性搜索问题上的有效性。

Illustrations are used to analyze the limitation of line sampling firstly. For linear limit state, the efficiency of LS is affected by the dispersion of the actual important direction from the optimal one, the bigger the dispersion is, the lower the efficiency is. For non-linear limit state, in case that the actual important direction deviates from the optimal one greatly, the efficiency and the precision of LS decrease seriously, even wrong results are obtained.

首先通过算例分析线抽样方法存在的问题，对于线性问题，线抽样法的效率受抽样重要方向与最优重要方向偏离程度的影响，这种偏离程度越大，效率越低；而对于非线性问题，当抽样重要方向与最优重要方向偏离较大时，线抽样的效率和精度均严重下降，甚至得出错误的计算结果。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。