查询词典 uncertainty

In accordance with the method of silver nitrate titration of chloride in water,the sources of the uncertainty of measurement of chloride in water were analyzed and the uncertainty was evaluated.

根据硝酸银滴定法测定水中氯化物的含量，分析了该方法测量不确定度的来源，评定了水中氯化物的测量不确定度，在各不确定度中，以标准溶液配制与样品分析时滴定消耗的硝酸银体积引入的不确定度较大。

Results Uncertainty in the calibration curve and standard solution concentration were the main source of uncertainty in sample measurement.

结果 校正曲线不确定度和标准溶液浓度的不确定度是样品测量不确定度的主要来源。

It is mainly caused by the relatively larger uncertainty（4%） in the irradiance calibration of FEL standard lamp and uncertainty（4%--6%） in the measurements of the diffuser bidirectional reflectance distribution function.

在紫外波段，使用常规手段实现高精度的辐射定标是比较困难的，这主要是由于标准灯的定标不确定度约4％和漫反射板双向反射分布函数的测量不确定度4％-6％所致。

Considering the uncertainty of the estimating reliability in the model, the theory of Bayes disk decision is used to solve the problem. The expected utility function is used to measure the uncertainty of the estimating reliability, and the Bayes decision rule for stopping reliability growth test is defined. In the end, an example is given to validate the feasibility of this method.

考虑到可靠度估计的不确定性，采用贝叶斯风险决策技术，通过期望效用函数量化可靠度的不确定性，并定义了停止可靠性增长试验的贝叶斯决策规则，最后给出了一个应用实例验证了方法的可行性。

First, in the aspect of influence of knowledge transaction cost factors on the choice of knowledge transfer mechanisms,"task uncertainty","information completeness","information asymmetry", and "knowledge tacitness" had direct influence on knowledge buyers when they chose knowledge transfer mechanisms. While "trust","task uncertainty","information completeness","knowledge tacitness","knowledge asset specificity" had indirect influence on the choice of knowledge transfer mechanisms.

在知识交易成本因子对知识移转机制选择之影响方面，「任务不确定性」、「资讯完备性」、「资讯不对称性」与「知识内隐性」对组织内知识需求者知识移转机制选择有直接影响，而「信任」、「任务不确定性」、「资讯完备性」、「知识内隐性」与「知识资产特殊性」则是对知识移转机制选择有间接影响；2。

Studies the uncertainty of pipe flow and node pressure resulting from the uncertainty of pipeline impedance by means of the first order Taylor expansion.

利用一阶Taylor展开的方法分析了由于管道阻抗的不确定性所导致的热网中管段流量和节点压力的不确定性问题。

Methods According to Evaluation and Expression of Uncertainty in Measurement (JJF1059-1999), analysis of measure uncertainty of the chemical oxygen demand determined by acidic potassium permanganate titrate prescribed in Sanitary Standards for Drinking Water (2001) was conducted.

根据JJF 1059-1999《测量不确定度评定与表示》对《生活饮用水卫生规范》(2001)中耗氧量的酸性高锰酸钾滴定法的测量不确定度进行分析评定。结果水中耗氧量测定的A类相对标准不确定度为0.584%，B类不确定度为0.781%。

The value of reference solution is measured by gravimetric titrimetry in this paper. The process of evaluating uncertainty is established according to JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement.

本文应用质量滴定法为硝酸银标准溶液定值，按照国家颁布的国家计量技术规范《测量不确定度评定与表示》JJF1059——1999的规定建立了硝酸银标准溶液不确定度的评定步骤。

The global convergence of the algorithm is proven Simulation results show the algorithm is feasible 3 A robust adaptive control method is proposed for the robots with constructed and unconstructed uncertainty The feedback gain of the controller is updated according to the estimated value of a function of uncertainty bounds The resultant control torque is smooth signal so that the chattering problem is avoided.

三、对具有结构型和非结构型不确定性的机器人提出了一种鲁棒自适应控制方法，其特点是根据不确定性界的函数的估计值直接修正反馈增益，所导出的控制力矩始终是光滑的，既能满足指出的跟踪精度，又不存在抖动问题。

A neural-network-based robust compensating control method is proposed for the robots with constructed and unconstructed uncertainty The robust controller consists of a computed torque controller and add-on compensating controller The effective way using neural network to estimate the system uncertainty is also given.

四、对具有结构型和非结构型不确定性的机器人提出了一种基于神经网络补偿的鲁棒控制方法，控制器由一个计算力矩控制器和一个可切入的神经网络补偿控制器组成，给出一种利用神经网络学习机器人不确定性的有效途径。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。