查询词典 unknown number

In the problem, there are m persons who are to be assigned to do n jobs, and the number of the persons who are assigned to do the jth job is bj, where bj is an unknown positive integer number to be calculated such that djbjej, dj and ej are known positive integer number (j=1,2,…,n) such that ∑nj=1bj=m and m≥n.

考虑一类较一般的最优指派问题：欲指派m个人做n项工作，要求每个人只做一项工作，第j项工作可以由bj个人共同去做，其中bj是待求未知数，满足dj≤bj≤ej(即ej，dj为第j项工作所需人数的上下限)及∑nj=1bj=m，dj，ej为已知常数，j=1，…，n。

First scanning the known handwriting materials then number them ,In pretreatment, we convert the valid part of the image into a standard size, as images carries out duotone and go throw off chirp handling in order to achieve better effect.draw features from the known handwriting materials with the Co-occurence,especially,we divided a copy of handwriting into 25 little pieces with the size of 128*128 ,drawing features from every little piecese with four directions(0 degree, 45 degrees, 90 degrees as well as 135 degrees) and calculate the four major feature values( veins and the statistical quantity of veins contrast and the statistical quantity of veins consistency Shang the statistical quantity of statistical quantity as well as the veins correlation of gray scale ), preservation all the feature value that drawn from all known ma terials to the handwriting characteristic database,then input the unknown handwriting materials, also using the method of the Co-occurence to draw those features, recycling the minimum European Distance law match the unknown writing material feature value with the handwriting characteristic feature database, export the label of the known hand writing materials which is most similar to the unknown material with minimum European Distance, and then we can confirm who is the author of the unknown material.

首先将笔迹材料作为图象扫描输入，并对其进行编号。预处理部分可将笔迹图象的有效部分规范化到一个统一尺寸，接着对其进行二值化和去除噪声的处理，以便于更好的提取图像的特征。在此我们采用了灰度共生矩阵法提取手写笔迹材料的纹理特征，与以往有所不同的是，我们将一份手写材料分割成64块大小为80*80象素的子图象，每个小块都从四个方向（0度、45度、90度以及135度）来更全面的提取特征，并计算出四个最主要的特征值（纹理一致性的统计量、纹理反差的统计量、纹理熵的统计量以及纹理灰度相关性的统计量），将从所有已知材料提取的特征值保存到纹理特征库中，对于待检手写材料，同样采用灰度共生矩阵的方法提取其纹理特征，再利用最小欧氏距离分类法将从待检手写材料中提取的特征值与纹理特征库中的特征值进行比对，与欧氏距离比对值最小的相匹配，输出匹配成功的原材料的标号，进而识别出待检材料书写者的身份。

By the iterative functional equation we usually mean an equation containing at leastan n-th iterate〓of an unknown function.A relatively general form of it is〓(1)where〓is a given integer,J is a connected closed subset of the real number axis R,G is a given〓function from〓to R,and f is an unknown function to be solved.

迭代函数方程通常是指含有未知的函数并含有它的至少2次迭代的方程，它的一个比较广泛的形式是〓，对任〓，（1）其中〓是个给定的整数，J是实数轴R的一个连通闭子集，G是个给定从〓到R的〓映射，f是个未知而待求的函数。

" For a single unknown character or "* for any number of unknown characters.

"为一个单一的未知性质，或"*为任何数目的未知字符）。

The virus spread via Winny file-sharing software to an unknown number of computers when their users tried to view the anime file.

该病毒的传播途经的Winny文件共享软件，有数目不详的电脑时，其用户试图观看动画文件。

As an efficient 2-D capacitance extract method, ES-MEI can solve a multiconductor in multilayered dielectric media problem using the comparable unknown number like in the integral equation method as well as the sparse matrix like in FD.

作为进行二维电容参数提取的有效方法，使其能以与积分方程法相当的变量数以类似有限差分法的稀疏矩阵处理分层介质中多导体传输线的电容提取问题。

There were soft rugs, rich, upholstered chairs and divans, a grand piano, a marble carving of some unknown Venus by some unknown artist, and a number of small bronzes gathered from heaven knows where

房间里铺了柔软的地毯，还有华贵的沙发椅和长沙发，一架大钢琴，一座无名艺术家雕的维纳斯大理石雕像，一些不知道从哪里收集来的小铜器饰物摆设。

The death toll from mudslides and flash flooding on the Portuguese island of Madeira rose to 40 people Sunday as the government rushed emergency aid to the resort island, AP reported. More than 120 others were injured and an unknown number were missing, authorities said. Heavy rain lashed the island Saturday, turning some streets in the capital of Funchal into raging rivers of mud, water and debris.

据美联社报道，葡萄牙旅游胜地马德拉岛遭遇强降雨引发的泥石流和洪水，截至21日，死亡人数已升至40人，逾120人受伤，失踪人数难以确定，政府已在当地展开紧急救援行动。20日，暴风雨猛烈袭击马德拉岛，导致首府丰沙尔的许多道路被淹没，成为夹杂着沙石泥土的奔流。

Officials decided at the last minute to add an unknown number of track-and-field tickets that were to be sold Saturday and Sunday.

在最后一刻官方决定要增加一个地址不详的田径门票销售点，可以出售到周六和周日。

The UNHCR says 20 to 25 registered asylum seekers were moved to accommodations in Patras, while an unknown number of undocumented camp residents were arrested and taken to Patras police station.

难民署说，20至25注册寻求庇护者被转移到在帕特雷的住宿，而一无证难民营居民人数不详被逮捕，并被带到警察局帕特雷。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。