Evgenij LegotskojJuly 27, 2015, 3:32 a.m.

Data Transmission TechnologiesСampus network

Кампусные сети, корпоративная сеть, сеть отдела, сеть предприятия, сеть рабочей группы

Introduction

Corporate Network - a network whose primary purpose is to maintain the operation of a particular enterprise that owns this network. Corporate network users are the only employees of the company.

In contrast to the prodier networks, enterprise networks, …

Evgenij LegotskojJuly 27, 2015, 3:21 a.m.

Data Transmission TechnologiesStandardize Data Transfer Technology

Стандартизация, ЛВС, ШПД

Standardization and sources of standards

Universal argument about the benefits of standardization, which is valid for all industries, computer networks is of particular importance. The essence of the network - the connection of various equipment, and therefore there is a …

Evgenij LegotskojJuly 26, 2015, 10:12 a.m.

AndroidToast - Customization pop-up message on the Android

Android, Toast

Give customization of all applications under OS Android !!!

With the slogan I want to tell today about customization pop-up message (Toast) in the Android OS. In any application that is designed and developed with great care, the question may …

Evgenij LegotskojJuly 21, 2015, 9:55 a.m.

AndroidAndroid. Customization ListView

ListView, ListAdapter, Android

Customization ListView is common in developing applications for Android OS. ListView (List) allows you to display the same type of information in your application, for example, show the products with prices and features, if you develop applications for online sales. …

Evgenij LegotskojJuly 20, 2015, 2:57 a.m.

Data Transmission TechnologiesTopology data networks

иерархическая звезда, кольцевая топология, топология ЛВС, полносвязная топология, ячеистая топология

Under the topology of the network refers to the configuration of the graph, whose vertices correspond to the end nodes of the network (such as computers) and communications equipment (eg, routers), and the edges of the physical or informational communication …

Evgenij LegotskojJuly 20, 2015, 2:38 a.m.

Data Transmission TechnologiesArchitecture of data transmission networks

network, transmission

Decomposition of the tasks of networking

Network architecture - a view of the network as a system of interrelated elements, each of which is assigned a specific private function.

In addition, each of the network elements solves a common problem. …

Evgenij LegotskojJune 29, 2015, 3:47 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 004. Dispersion in the optical fiber

fiber, волс, модовая дисперсия

Distinguish mode dispersion, which is caused by a large number of modes in the optical fiber and the chromatic dispersion associated with the incoherence of light sources actually operating in a certain range of wavelengths.

Consider the propagation of the …

Evgenij LegotskojJune 29, 2015, 3:36 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 003. The attenuation in the optical fiber

fiber, волс, потери

The most important parameters are the optical fiber loss and attenuation of the transmitted energy. These parameters define the range of the FOC and on its effectiveness. Attenuation in optical fibers due to manifestation of the following losses:

α c …

Evgenij LegotskojJune 28, 2015, 9:22 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 002.The optical fiber and its types

fiber, волс, типы волс

Depending on the number of the operating frequency propagating waves (modes) of the fibers and is separated into one multimode. The number of modes is dependent on the ratio of the diameter of the fiber core and the wavelength for …

Evgenij LegotskojJune 28, 2015, 8:37 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 001. The optical fiber - operating principle

fiber, волс, апертурный угол

The optical fiber is a thin glass strand bilayer, each element (core and shell) has a different refractive index. The refractive index n of transparent material is the ratio of the velocity of light in vacuo (c - velocity of …

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C++ - Test 001. The first program and data types

  • Result:13points,
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M
  • Maks
  • Sept. 18, 2022, 7:04 a.m.

C ++ - Test 004. Pointers, Arrays and Loops

  • Result:70points,
  • Rating points1
PB

Qt - Test 001. Signals and slots

  • Result:78points,
  • Rating points2
Last comments

Qt/C++ - Lesson 035. Downloading files via HTTP with QNetworkAccessManager

Здравствуйте! Подскажите, пожалуйста, как сделать так, чтобы программа срабатыала без нажатия кнопки? Ну чисто при загрузке формы... Я так понимаю, надо что-то поменять в этой строчке con…
R5

Qt/C++ - Lesson 051. QMediaPlayer – simple audio player

Здравствуйте. Подскажите пожалуйста, как решить проблему multimedia модуль не распознается

Qt/C++ - Lesson 009. QTimer – How to work with timer?

Да, именно так. Но в коде без this написано - это ошибка в статье.
f

Qt/C++ - Lesson 009. QTimer – How to work with timer?

QTimer унаследован от QObject и ему передан this, идиома Qt предпологает что при вызове деструктора обьекта класса MyServer, обьект *timer тоже будет освобожден. Поправьте если ошибаюсь!

Qt/C++ - Lesson 009. QTimer – How to work with timer?

Потому что 7 лет назад я был бестолковее, чем сейчас.
Now discuss on the forum

Задать другой класс div-у

Добрый день. Попробуйте использовать Selenium. Это библиотека есть в виде Python модуля и она позволяет загружать страницу и манипулировать html элементами. Как я понимаю, в ней можно…
AB

Sorting the added QML elements in the ListModel

I am writing an alarm clock in QML, I am required to sort the alarms in ascending order (depending on the date or time (if there are several alarms on the same day). I've done the sorting …
ACh

Списки на QML

Вопрос решен с применением базы данных. Кому интересно, можете поюзать проект:) Отдельное спасибо Евгению за помощь)))Вход под админом Логин:1, пароль:1Вход под диспетчером Логин:22, пароль:2Вх…

Хочу переместить QMenuBar

Просто взять и заменить в пару строчек не получится. Qt предусматривает крайне ограниченный функционал по работе с обрамлением окон, к которому относится заголовок окна. Вообще это фу…

Django переводы фраз JavaScript файлов

Столкнулся с проблеммой некоторых библиотек javascript файлов. Мне нужно что бы переводы работали и в них. Выполнив инструкции из документации ничего не получаю. Помогите разобра…
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