查询词典 on the threshold

Objective To study the effects of liquid oxygen inhaling on anaerobic threshold in high altitude migrants.

目的 探讨在高原吸入液态氧对移居青年通气无氧阈值的影响。

A threshold signature scheme based on the bilinear mapping tool was proposed.

使用双线性映射工具，提出基于双线性对的门限签名方案。

Through the design of AGP-test equipments and methods which could simulate the impact of input of exogenous nutrients on eutrophication, the evolution of algae and aquatic species extinction process in Miyun Reservoir under different environmental and nutritional conditions are simulated. Then the ratio growth rate in the three simulation stages are simulated and analyzed combining the numerical analysis software MATLAB 7.0. At last, the conclusion that in the three designed stage, the total phosphorus threshold which leads to a water bloom in Miyun is respctively 0.053mg/L, 0.062mg/L, 0.064 mg/L is educed. Based on the regression relationship of total phosphorus,chlorophyll-a, total nitrogen, and the transparency,we compartmentalized the evaluation standard level of eutrophication in Miyun Reservoir.

通过设计模拟外源输入对富营养化作用的AGP试验装置和方法，模拟了不同环境条件、营养条件下密云水库优势藻种演变和富营养化过程，结合使用MATLAB 7.0数值分析软件，对3期模拟时段的比增长率进行拟合分析，得出3期设计阶段密云富营养化发生的总磷阈值为0.053mg/L、0.062 mg/L、0.064 mg/L，再根据总磷与叶绿素a、总氮、透明度之间的回归关系，划分了密云水库富营养化的评价标准级别。

Grounding on the purpose of industrialization of laser, based on the thought of astigmatism compensation and thermal stability of the cavity, we employed high power LD to pump Nd:YVO4 crystal and used the introcavity frequency doubling with type 1 noncritical phase-match LBO crystal, which has high damage threshold. The cavity parameters are optimized by the use of ABCD theory and the resonatorstructure CAD software.

立足于激光器的产品化，基于谐振腔的像散补偿和热稳定性的设计思想，采用大功率LD单端泵浦Nd：YVO_4晶体，具有高光损伤阈值的Ⅰ类非临界相位匹配LBO晶体腔内倍频方案，应用ABCD定律和腔结构模拟软件CDA设计并优化了一组腔参数。

The decreased threshold shear velocity and unsaturated sand flows at the stoss slope of the dunes resulted the erosion at the toe of the dune. Under the medium and low drifting-sand winds the sands being transported have divergence with that on the surface, the mean grain size of transported sands is lower than that on the surface and the sand transporting is a stochastic process.

起动剪切速度减小与不饱和风沙流是沙物质在横向沙丘迎风坡坡脚不能产生沉积的主要原因；再者，平均风速并不能完全反映野外实际状态下气流的性质，在低－中强度的风沙活动过程中，被输送的沙物质的粒度组成与下垫面物质有明显的差异。

the study aims at the actual network status of one work section in daqing oil field,makes a network analysis and planning for the new mixed model of this work section,expends wireless network for the work section on the basis of existing network,and conjoins wire and wireless network together to form an integrated oil field information transfer system.at the same time,using opnet modeler simulation flat roof to structure simulation models (network models,node models and a process model),and analyzing the functions and work mechanism of the major modules for related models,making a simulation for the structured network models,then according to the different parameters,analyzing the individual statistics comparatively such as delay,data dropped and so on,the effects of data packet,data rate and fragmentation threshold to the network performance are gained.after all these,the best structure network scheme for this improved section is determined.

摘 要：此项研究主要针对大庆油田某作业区的实际网络现状，对该作业区进行网络分析和规划，在该作业区现有的有线网络基础上扩充无线网络，实现有线网与无线网的综合，构成一个完整的油田传输信息体系。同时利用opnet modeler仿真平台为该作业区新建混合网络建立仿真模型(网络模型、节点模型和进程模型)，分析相关模型中主要模块的作用和工作机理，对已建立的网络模型进行仿真，在不同的参数设置下，通过对比分析时间延迟、丢包率等统计特性，得出数据包分组、数据率和拆分门限对网络性能的影响，最终决定改进网络的最佳组网方案。

In the second chapter, the operating principle of solid-state laser is analyzed. Based on the model of four-level system and with the space-related rate equations, the space distribution of laser beam and pump beam, the threshold pump power, the output power, the slope efficiency, the input-output characteristic and the effect of space variables on the output character are studied. Also, the introcavity second harmonic generation theory is discussed.

第二章分析了固体激光器的工作原理，以四能级系统为模型，从与空间相关的速率方程出发，研究了泵浦激光和振荡激光的空间分布、阈值功率、输出功率与斜效率、LD端面泵浦固体激光器的输入输出特性及各空间变量对输出特性的影响，并讨论了腔内二次谐波产生理论。

In the traditional AdaBoost method,the weights are updated based on the weak classifier's overall error rate, this article proposes one kind of the method which unifies the level of difference between the threshold and the feature value of the weak classifier with the weak classifier's overall error rate. Compared to the method which only based on the overall classification error rate to update the weights,this method can achieve higher detection rate while reduces the mistaken-detection rate.

在传统AdaBoost方法中，权重是根据弱分类器的整体错误率来更新的，本文提出了一种将弱分类器的阈值与特征值相差程度和弱分类器的整体错误率相结合来更新样本权重的方法，相比较只根据整体分类错误率来进行权重更新的方法，这种方法可以在降低误检率的同时达到较高的检测率。

Fang, the construction side while hanging out of such a notice, but the whole has been slow lane Weidang up, while the slow lane if the route through the sidewalk when there is a threshold to go on, therefore, Basically, more than 90 percent ride a bicycle, electric cars and motorcycles who will route through the fast lane on the way, thus causing horrible disaster.

一位经常路过浦珠路的居民方先生称，施工方虽然挂出了这样的告示，但整个慢车道被围挡起来，而慢车道如果借道人行道时，还有一个坎要过，因此，基本上百分之九十以上骑自行车、电动车及摩托车的人，都会借道快车道上，以致酿成惨祸。

The author discovered in the exploration, firstly, in Zhu Xi"s reading view both pays great attention the reader to text"s assurance, causes the reader as not to be separated from the text so as to do surpasses the text threshold the understanding, and pays great attention the reader individual experiences seepage to the influence of the reading result which causes the reader not only book not on only, displays the reader individuality fully; Next, Zhu Xi's opinions pays attention to the familiarity with fine thinking, thought that is familiar with fine thinking is the understanding foundation, thinking in reading, reading in thinking, can have a feeling to become aware, also pays great attention to fulfilling experience, thought that the reader wants to experience attentively at the same time, pursues internal conjunction of the reader's and the author's mind, pursues a kind of communication of mind, on the other hand we must use the practice to experience, and to pursue the reader's reading result and the life exchange, only then such reading result can penetrate thoroughly; Finally, Zhu Xi's view also pays great attention the knowledge that soaks thoroughly the penetration. It is thought that the reader must proceed in an orderly way, neither anxiously nor slow, work carefully and make steady progress from the easy to the difficult, and using analogy to make the knowledge interpenetration, learn with a lively mind, and increase reader's ability for the next reading .

在探索中笔者发现，首先，朱熹的阅读观中既注重读者对文本本身的把握，使读者不至于脱离文本做超出文本阈限的理解，又注重读者个性经验的渗透对阅读结果的影响，使读者不唯书不唯上，充分发挥读者个性；其次，朱熹阅读观还注重熟读精思的重要性，认为熟读精思是理解的基础，在读中思，于思中读，才能有所感悟，又注重体验践行，认为读者一方面要用心体验，追求读者与作者心灵内部的契合，追求一种心灵的对话，另一方面要用实践去体验，追求读者阅读结果与生活之间的交流融通，只有这样的阅读结果才能深入透彻；最后，朱熹阅读观还注重知识的浃洽贯通，认为读者读书要循序渐进，不急不缓，由易到难一步一个脚印去做，并运用类推的方法使知识相互贯通，活学活用，使读者的下次阅读受益。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。