Traveling Salesperson Problem Our branch-and-strategy splits a branch and bound solution into two Groups: one group including a particular arc and the other excluding this arc. 1.Each splitting incurs a lower bound and we shall traverse the searching tree with the "lower" lower bound. 2.If a constant subtracted from any row or any column of the cost matrix, an optimal solution does not change.
標(biāo)簽： branch-and-strategy Salesperson Traveling solution
上傳時間： 2013-12-29
上傳用戶：璇珠官人
Software-defined radios (SDRs) have been around for more than a decade. The first complete Global Positioning System (GPS) implementation was described by Dennis Akos in 1997. Since then several research Groups have presented their contributions.We therefore find it timely to publish an up-to-date text on the subject and at the same time include Galileo, the forthcoming European satellitebased navigation system. Both GPS and Galileo belong to the category of Global Navigation Satellite Systems (GNSS).
標(biāo)簽： Software-defined complete Global radios
上傳時間： 2017-06-08
上傳用戶：wkchong
C++ is widely used in the software industry. Some of its application domains include systems software, application software, device drivers, embedded software, high-performance server and client applications, and entertainment software such as video games. Several Groups provide both free and proprietary C++ compiler software, including the GNU Project, Microsoft, Intel, Borland and others.
標(biāo)簽： application industry software domains
上傳時間： 2013-12-23
上傳用戶：wanqunsheng
G UILLAIN-BARRéSYNDROME(GBS)is an uncommon disorder,but one whose impact is far out of proportion to its incidence.Despite a usually good prognosis,GBS is a particularly frightening and often life- altering experience for those diagnosed with the disorder.Many patients are acutely aware of the rapid loss of control of their muscular function, including vital functions such as breathing and swallowing,and fre- quently feel that they are dying.The experience is almost as unnerving for the families of affected individuals.During the acute phase of the ill- ness GBS patients experience the indignity of helplessness in addition to their fear of death or permanent disability.Prolonged disability is com- mon and some permanent residual effects are becoming increasingly recognized.It has been our experience in meeting patients at support Groups,that individuals who have been affected by GBS have a great desire for a better understanding of the disorder,even years after the acute experience.
標(biāo)簽： UILLAIN-BARR proportion SYNDROME disorder
上傳時間： 2017-07-11
上傳用戶：cuibaigao
Software-defined radios (SDRs) have been around for more than a decade. The first complete Global Positioning System (GPS) implementation was described by Dennis Akos in 1997. Since then several research Groups have presented their contributions.We therefore find it timely to publish an up-to-date text on the subject and at the same time include Galileo, the forthcoming European satellitebased navigation system. Both GPS and Galileo belong to the category of Global Navigation Satellite Systems (GNSS)
標(biāo)簽： Software-defined complete Global radios
上傳時間： 2013-12-16
上傳用戶：xauthu
第一節(jié)、samba是干什么的？它有什么用？ Samba（SMB是其縮寫） 是一個網(wǎng)絡(luò)服務(wù)器，它是Linux作為本地服務(wù)器最重要的一個服務(wù)，用于Linux和Windows共享文件之用；Samba可以用于Windows和 Linux之間的共享文件，也一樣用于Linux和Linux之間的共享文件；不過對于Linux和Linux之間共享文件有更好的網(wǎng)絡(luò)文件系統(tǒng) NFS，NFS也是需要架設(shè)服務(wù)器的； 2、安裝及服務(wù)操作命令 安裝samba程序非常簡單，使用rpm -q samba查看當(dāng)前系統(tǒng)是否已經(jīng)安裝了samba軟件。 如果沒有那就進入光盤，rpm -ivh *samba*.rpm即可。 仔細(xì)說下安裝的包： samba-common-3.0.28-0.el5.8 //samba服務(wù)器和客戶端中的最基本文件 samba-3.0.28-0.el5.8 //samba服務(wù)器核心軟件包 system-config-samba-1.2.39-1.el5 //samba圖形配置界面 samba-client-3.0.28-0.el5.8 //samba客戶端軟件 啟動、暫停和停止服務(wù)： /etc/init.d/smb start /etc/init.d/smb stop /etc/init.d/smb restart 或 service smb start service smb stop service smb restart 第二節(jié)、由最簡單的一個例子說起，匿名用戶可讀可寫的實現(xiàn) 第一步： 更改smb.conf 我們來實現(xiàn)一個最簡單的功能，讓所有用戶可以讀寫一個Samba 服務(wù)器共享的一個文件夾；我們要改動一下smb.conf ；首先您要備份一下smb.conf文件； [root@localhost ~]# cd /etc/samba [root@localhost samba]# cp smb.conf smb.conf.bak [root@localhost samba]# vi smb.conf 或geidt smb.conf & 然后我們把下面這段寫入smb.conf中: [global] workgroup = WORKGROUP netbios name = Liukai server string = Liukai's Samba Server security = share [test] path = /opt/test writeable = yes browseable = yes guest ok = yes 注解： [global]這段是全局配置，是必段寫的。其中有如下的幾行； workgroup 就是Windows中顯示的工作組；在這里我設(shè)置的是WORKGROUP （用大寫）； netbios name 就是在Windows中顯示出來的計算機名； server string 就是Samba服務(wù)器說明，可以自己來定義；這個不是什么重要的； security 這是驗證和登錄方式，這里我們用了share ；驗證方式有好多種，這是其中一種；另外一種常用的是user的驗證方式；如果用share呢，就是不用設(shè)置用戶和密碼了； [test] 這個在Windows中顯示出來是共享的目錄； path = 可以設(shè)置要共享的目錄放在哪里； writeable 是否可寫，這里我設(shè)置為可寫； browseable 是否可以瀏覽，可以；可以瀏覽意味著，我們在工作組下能看到共享文件夾。如果您不想顯示出來，那就設(shè)置為 browseable=no，guest ok 匿名用戶以guest身份是登錄； 第二步：建立相應(yīng)目錄并授權(quán) [root@localhost ~]# mkdir -p /opt/test [root@localhost ~]# id nobody uid=99(nobody) gid=99(nobody) Groups=99(nobody) [root@localhost ~]# chown -R nobody:nobody /opt/test 注釋：關(guān)于授權(quán)nobody，我們先用id命令查看了nobody用戶的信息，發(fā)現(xiàn)他的用戶組也是nobody，我們要以這個為準(zhǔn)。有些系統(tǒng)nobody用戶組并非是nobody ； 第三步：啟動服務(wù)器 第四步：訪問Samba 服務(wù)器的共享； 1、在Linux 中您可以用下面的命令來訪問； [root@localhost ~]# smbclient -L //liukai或 smbclient //192.168.0.94/test Password: 注：直接按回車 2、在Windows中，您可以用下面的辦法來訪問； \\liukai 或 \\192.168.0.94 3、說明：如果用了netbiosname，就可以用“\\主機名”來訪問，如果沒用netbiosname，就不能用主機名訪問。 第三節(jié)、簡單的密碼驗證服務(wù)器 修改smb.conf文件： security = user guest account = liukai encrypt passwords = yes smb passwd file = /etc/samba/smbpasswd 然后，建立一個新用戶 useradd liukai passwd liukai 成功后，cat /etc/passwd | mksmbpasswd.sh > /etc/samba/smbpasswd smbpasswd -a liukai 這就成功地添加了一個smb用戶。 重啟服務(wù)，使用這個用戶進行登錄即可。
上傳時間： 2015-05-13
上傳用戶：yangkang1192
Emergingmarketshaveseenanunprecedentedgrowthinthelastfewyears.Theoperatorfocus has been on giving complete coverage to all regions (urban to rural) and to subscription to all – people from the highest to the lowest income Groups. When the idea is taking coverage for the remotest of the regions and getting the ‘unconnected–connected’, technology and business modelling are two important focus areas.
標(biāo)簽： Technologies Cellular Emerging Markets for
上傳時間： 2020-05-26
上傳用戶：shancjb
Welcome to the third volume of the book entitled Technologies for the Wireless Future, which is produced by WWRF. The idea is to take the most important outputs from the working Groups and special-interest Groups that compose the Forum and bring them together in a series of one-volume surveys. The latest of these will give the reader a good overview of the WWRF approach to analyzing the future of wireless and mobile communications, as well as an insight into the trends themselves and the key technologies that will be deployed.
標(biāo)簽： Wireless Research Forum World
上傳時間： 2020-06-01
上傳用戶：shancjb
This book is based on a Ph.D. research that has been conducted at the Delft University of Technology in the Netherlands in collaboration with Dutch Electricity & Gas Distribution Network Operator, Stedin. This book was written as a result of wider interest that was shown by different industry Groups on this topic after its public defence. This inspired the author to modify and publish a practical version of the research for a greater international audience. Therefore, the content of this book is intended for a double audience, on the one hand for those interested in the organisational and management aspects of maintenance.
標(biāo)簽： Maintenance Electricity Risk-Based Network for
上傳時間： 2020-06-07
上傳用戶：shancjb
Software-defined radios (SDRs) have been around for more than a decade. The first complete Global Positioning System (GPS) implementation was described by Dennis Akos in 1997. Since then several research Groups have presented their contributions. We therefore find it timely to publish an up-to-date text on the sub- ject and at the same time include Galileo, the forthcoming European satellite- based navigation system. Both GPS and Galileo belong to the category of Global Navigation Satellite Systems (GNSS).
標(biāo)簽： A_Software-Defined_GPS_and_Galile o_Receiver
上傳時間： 2020-06-09
上傳用戶：shancjb
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