Hướng dẫn sử dụng Photoshop CS5 - Phần 4: Các menu cơ bảnBài hướng dẫn này của Quản Trị Mạng sẽ có một cái nhìn tổng quát các menu, thông qua đó sẽ giúp bạn dễ dàng hơn trong việc tìm kiếm công cụ để chỉnh sửa ảnh phù hợp. Thanh Menu Đây là một thanh menu tổng quát các chức năng, nó nằm phía trên cùng cửa sổ làm việc của Photoshop. Mỗi một nút là một menu tổng quát, chúng ta sẽ lượt qua một loạt những ...
20 trang | Chia sẻ: tlsuongmuoi | Ngày: 17/01/2013 | Lượt xem: 2213 | Lượt tải: 1
Data SegmentationThe division of the transmission resources in the time domain usually causes segmentation of larger data units (e.g. IP packets) into smaller data units. This is necessary because the data has to fit into data segments carried by the time slots provided by a TDMA scheme. At the same time, the data segmentation ensures a finer granularity of the net...
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Convolution CodesIn the convolutional codes (also called trellis codes), the redundancy that must be added to allow error correction at the receiver is continuously distributed in the channel bit stream. Therefore, as opposed to the block codes, which operate on finite-length blocks of message bits, a convolutional encoder operates on continuous sequences of messag...
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Complex disturbance models for ofdm - Based systemsIn the consideration above, an on–off error model is defined describing the availability of a transmission channel. However, if a disturbance impulse occurs, it can affect a variable number of OFDM subcarrier frequencies depending on its characteristics, spectral power, origin, and so on. Therefore, the disturbances have to be modeled not only in t...
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Network SegmentationA PLC access network can be realized to include a whole low-voltage power supply network or to include only a part of a supply network. To reduce the number of users per PLC system and the network length, it is possible to divide the low-voltage network into several parts (e.g. one PLC system per network section). In this case, several PLC systems ...
29 trang | Chia sẻ: tlsuongmuoi | Ngày: 17/01/2013 | Lượt xem: 2242 | Lượt tải: 0
Creating a new panel pageThe list of items includes recent comments posted on the site, a list of new users who were recently added to the site (“Who’s new”), and a list of currently logged-in users (“Who’s online”). If you’ve installed contributed modules, you may find additional items that are enabled through the additional modules. Next, click on the Menus link in the l...
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Beginning drupal - Content typesThis page lists all of the fields that are associated with our content type, and provides the ability to define basic display attributes for the label and content for each of the fields. There are two sets of values that we can set: one for the Teaser view and the Full Node view. If you click on the select list for Labels, you will find that there ...
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Programming AutoCADOften you want to execute a procedure based on a certain condition. One way of doing this is with the IF statement, which does one thing if a statement is true and another thing if it is false. In other words, the operation is conditioned on the truth of a certain statement. Looping is an important part of programming. Frequently you want to execut...
133 trang | Chia sẻ: tlsuongmuoi | Ngày: 17/01/2013 | Lượt xem: 2158 | Lượt tải: 0
Rendering in 3D - Creating a SceneWorking with lists of materials Materials are saved in a file with the extension .mli (materials library). The default materials library is render.mli. The left side of the Materials Library dialog box represents materials in the current drawing. The right side of the dialog box represents the entire list of materials provided by AutoCAD. In the Cu...
132 trang | Chia sẻ: tlsuongmuoi | Ngày: 17/01/2013 | Lượt xem: 2160 | Lượt tải: 1
Drawing in Two Dimensions - Step - by - Step: Creating Text Styles1. Open ab13-b.dwg from your CD-ROM. 2. Save the file as ab13-03.dwg in your AutoCAD Bible folder. 3. Choose Format➪Text Style to open the Text Style dialog box. Click New. In the New Text Style dialog box, type Notes and click OK. 4. From the Font Name drop-down list, choose romans.shx. In the Height text box, change the height to 1/16". In t...
132 trang | Chia sẻ: tlsuongmuoi | Ngày: 17/01/2013 | Lượt xem: 2825 | Lượt tải: 0
