查询词典 zero set

Without considering testing error ,we set up a group testing model in the presence of zero observations and derive maximum likelihood estimator and method of moment estimator of parameters.

在不考虑检验误差的情形下，建立一个含零观测值的模型并得到参数的最大概似估计量与动差估计量。

In an Access database, you can only enter a zero-length string in a Text or Memo field whose AllowZeroLength field property is set to Yes.

在 Access 数据库中，只能在"允许零长度字符串"字段属性设为"是"的"文本"字段或"备注"字段中输入零长度字符串。

If this occurs, set the Randomness value to a small non-zero value.

如果要这样做，将随机值设置到非零的最小值。

When you give a 'reset' you can set the reference point of zero degree.

当你给一个"重置"你可以参考点的零度。

Segmentation and extraction of the target feature points from the unregistered, noisy data set of human body scanning and measuring are discussed. We have fitted the noise scanned data line with KS principal curve, which is based on the K-means theory. The crossing zero of curvature was used to segment and estimate the position of target feature points. And optimization scheme named variable fuzzy partition is also presented to improve the searching for local feature area.

使用基于K-means思想的KS主曲线算法，对国家人体尺寸测量工作中产生的带噪声扫描线数据集合进行非线性拟合，并依据曲率分布特征提出对目标特征点空间位置进行模糊分区估计的方法；同时提出了变量化模糊分区的优化策略，大幅度地提高了局部特征区域搜索的效率。

A general mathematic model of lifting subsystem and hydraulic balancing subsystem was set up by using correspond relation of the force and the displacement at the interface of lifting and hydraulic system, then the question that the principal diagonal elements of mass matrix were zero is resolved. Meanwhile the effect on the general dynamic characteristic of ellipticity of is considered.

通过卷扬系统与液压系统在界面耦合处的力和位移协调关系，建立诸如M〓+C〓+KX=F形式的机械卷扬-液压均衡系统综合数学模型，模型中考虑了卷筒椭圆度偏差以及直径偏差对整体动态性能的影响，解决了耦合后数学模型质量矩阵主对角线元素奇异的问题。

In order to efficiently handle multi-constraints, a vector function inner product is defined in the zero level set and a gradient projection method is constructed, and the necessary condition satisfied by the optimal solution is proved.

在这些研究的基础上，提出了适用于一般目标函数、多材料、多约束和多载荷工况的结构拓扑优化的水平集算法4.1，并给出了刚性结构、柔性机构和复合材料微结构设计算法5.1、6.1和7.1，以及大量的数值算例。

Second, Philips set up a team of professional services, in order to meet the production requirements Philips, in Suzhou established a transit warehouse, Philips orders requested by the production of finished products stored in the production base in Suzhou Philips Nearby, timely and accurate protection Philips production, and send well-trained professionals in the Philips production base to provide around-the-clock online service, and ensure implementation of the production of raw materials Philips zero inventory.

二、成立一支为飞利浦专业服务的队伍，为了适应飞利浦的生产要求，在苏州设立了一中转仓库，把飞利浦订单所要求生产的成品储存在苏州飞利浦生产基地的附近，及时准确地保障飞利浦的生产，同时派出训练有素的专业人员在飞利浦生产基地提供全天候的在线服务，保证飞利浦的生产实行原材料零库存。

In general under ideal perfect competitive environment, because of the replaceability the active output of a certain generating set will fall in vast scale while its bidding price is slightly raised, and the sensitivity index based on its own price will be a very small negative value; along with the increment of market power this index will gradually increase until sensitivity index becomes zero. This conclusion can be spread to the situation of multi-generating sets.

在理想的完全竞争环境中，由于可替代性，某台发电机组稍微提高投标价格一般会导致其有功输出的大量减少，基于自身价格的灵敏度指标为很小的负值，随着机组市场力的增加，该指标逐渐趋于增大，直至为零，此结论可推广至多台机组的情形。

By selecting appropriate parameters of the controller, the residual set will approach to zero.

通过选择合适的控制器参数，可使剩余集趋于0。

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。