效益

The mean generation interval of the flock is 5. 42 years of the current breeding scheme, and the ratio of input and output is 1∶11. 50, but the rate of mammitis will increase at the speed of 2%, at the same time, the number of daughters and sons of test bulls is not large enough for good accuracy for estimating test bull breeding value, so the breeding scheme in effect need to be improve.

D、在影响育种效益的诸因素中，单一的加大群体规模、育种群比例以及每年选留测验公牛数将在一定程度上提高育种效益和遗传进展，但随选留种子公牛数提高将降低育种效益和综合育种值遗传进展；在育种实践中应尽量扩大育种群规模和主动育种群比例。

The paper pointed out the essence of forest ecological benefits measuration assessment.

通过12种森林生态效益的资源背景非全程性的&有效面积系数&和&市场逼近系数&，构造出森林生态效益的经济的结构模型，实现森林生态效益的&内部化&和科学化基准。

Forest ecological benefits index system can divided into two kind from the conception of forest ecological benefits measuration, such as dependent variable of region and stand, independent variable.

本文从森林生态效益计量角度出发，阐述了森林生态效益的定义，指出它与森林资源的相关为第二类相关，并将森林的生态效益的指标体系划分为自变量（区域自变量和林分自变量）和因变量两类。

The research on FDI Evaluation System This paper decompounds the basic research question based on the characteristics and procedures of the FDI evaluation systems.

对外投资效益评价体系实施影响因素研究结合中国企业的特殊情况，本文讨论了研究对外投资效益评价体系影响因素的意义，以及在现有对外投资环境下，影响效益评价系统的主要因素及可以采取的对策。

Chapter 4 has firstly analyzed the direct influences, through increasing vegetable demand, and indirect influences, through improving the efficiency of resource utilization, ensuring the productive profit of farmers, enhancing the quality and safety of vegetable products, improving the diatheses of farmers and propelling the emergence of vegetable industrial cluster, of vegetable processing enterprises to vegetable productive profits.

第四章首先分析蔬菜加工对生产效益的直接和间接的影响，前者通过直接增加蔬菜需求提高生产效益，后者通过提高资源利用率、保障菜农收益、增强蔬菜质量安全、提高菜农素质、促进蔬菜产业集群产生而增加生产效益。

Tt was concluded that the management benefits of the 2008 Olympic gymnasium could be better if the sports micro developing strategy could be readjusted and the socialization, industrializes tion and marketization of sports could be realized. The key point was to promote the management of the sports gymnasiums. The basic was to train special gymnasium management and marketing talents.

结论认为，调整体育宏观发展战略，实现体育运动社会化、产业化和市场化，是提升2008年奥运体育场馆经营效益的基础；提高体育场馆经营管理水平，是提升 2008年奥运体育场馆经营效益的关键；努力培养体育场馆专业管理和营销人才，是提升2008年奥运体育场馆经营效益的根本。

Then, the expenditure and effectiveness are analyzed quantitatively, on the basis of analysis to character of environment and resource economy theory as well as green building cost effectiveness;and the full life-span cycle expenditure model is established;and the effectiveness of green building is monetized.

然后根据环境、资源经济学理论和绿色建筑费用效益分析的的特点，分别对费用和效益作定量化分析：建立了全寿命周期费用模型；将绿色建筑的效益货币化。

Cost-benefit analysis is a practical method used for deciding policy and analyzing. It is the compensation or balance which some measure and investment involve fund to output, expense to revenue, cost to benefit.

费用-效益分析是一种实用的决策分析方法，费用-效益分析就是某些措施或投资的经费对产量、支出对收入、成本对效益的补偿或平衡。

Think, CBD mainstream customer base for home ownership requirement is that the cost-effective, they are not very rational impulse, not only concerned about the material aspects of cost-effective, but also more concerned about the spiritual dimensions of cost-effective.

张宝全认为，生物多样性公约的主流客户群的置业要求是符合成本效益的，他们是不是很合理的冲动，不仅关注物质方面的成本效益，而且也更关心的精神层面的成本效益。

The sketch and specific design approaches of mid-block street crossing are generalized and three management and control modes are discussed. Based on extensive investigation and survey, the paper analysis the arriving laws in different land-use condition and the traffic characteristics of different crossing entities under different control modes. The initial characteristic, the speed and dispersion of the mobile flow are also intensive studied, as well as the effect of mid-block street crossing. Establish the linear planning models on the coordination between the signals of mid-block crossing and intersection. Finally the evaluation of the model output is carried out from time saving results, safety, economic results and social results. Set the example of Taiping north road in Nanjing, surveying the traffic situation, applying the method of signal coordination between the mid-block crossings and intersection to realize the south-to-north signal coordination design. The evaluation results show the coordination plan are more superior to the current signal plan.

本文首先阐述了行人过街物理设施的概略设计和详细设计方法，讨论了路段人行横道的三种交通管制方式的设计方法和实用条件；其次，在充分的实际调查基础上，详细分析了不同用地性质条件下的过街需求的到达特性和不同交通管制下不同过街实体的交通特性，分析了进入路段的机动车初始流特性，并对机动车在路段中的车速特征、离散性以及路段信号控制人行横道对机动车流的影响进行了研究；然后，根据以上分析的过街交通和机动车交通的交通特性，建立了路段行人过街信号与交叉口信号协调控制的线性规划模型；最后，对模型输出的协调控制方案进行了效益评价分析，从时间效益、安全性、经济效益和社会效益四个方面，定量和定性相结合地对其实施效果予以评价；以南京市太平北路路段为例，根据现状交通状况，应用行人过街信号与交叉口信号协调控制的方法，对该路段由南向北方向进行单向协调控制设计，并进行方案效益分析评价，提出了优于现状控制方案的人行过街信号与交叉口信号协调控制方案。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。