Evgenij LegotskojJuly 29, 2015, 4:47 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 006. Installation of fiber-optic communication lines

fiber, волс, монтаж

Basic concepts and definitions

The most responsible operation in the process of construction of fiber-optic, predetermining the quality and range is the installation of optical fibers. Such a combination of fibers and installation cables are produced in the manufacturing process …

Evgenij LegotskojJuly 28, 2015, 3:56 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 005. Fiber-optic cables. Classification

ВОК, волс, fiber

Classification of fiber optic cables

Fiber-optic cables (FOC) - a cable products, containing a number of optical fibers and the reinforcing member enclosed in a common envelope, on top of which, depending on the operating conditions of the protective cover …

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 …

Fornex

Let me recommend you a great European Fornex hosting.

Fornex has proven itself to be a stable host over the years.

For Django projects I recommend VPS hosting

Following the link you will receive a 5% discount on shared hosting services, dedicated servers, VPS and VPN

View Hosting
JS

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

  • Result:50points,
  • Rating points-4
V

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

  • Result:50points,
  • Rating points-4
DK

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

  • Result:20points,
  • Rating points-10
Popular publications in the last 90 Days
Last comments

Qt/C++ - Lesson 005. QSqlRelationalTableModel - The work with relational tables

Хочу поделится, мы сделали свой вариант QSqlRelationalTableModel и заодно к нему новое развитие QTableView, и получилась готовая таблица PblTableDlg, у которой реализованы внешние связи, комбобо…
S

Qt WinAPI - Lesson 004. QtIFW - Automation WinDeployQt and build installers with Qt Installer Framework

Hello Evgenij, regarding the online installer, I've tried many times to use web host for the created repo after repogen step. I tried using github but I found people talking it is not …
  • juvf
  • Jan. 16, 2023, 10:18 p.m.

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

PS. Почти дописал плеер на QML. Уперся в ограничения QML. Переписываю плеер на с++/qt, а графика останится в qml. Нашел то, что мне надо, а именно индикатор звука. Qt может перехватывать аудиопо…

Qt/C++ - Lesson 039. How to paint stroke in QSqlTableModel by value in the column?

В этом случае вижу только какой-нибудь костыль в стиле перебора по всем индексам в заголовке с помощью методу headerData . То есть пройтись в for цикле пока не будет совпадения н…
a
  • avt
  • Dec. 12, 2022, 9:06 a.m.

Qt/C++ - Lesson 039. How to paint stroke in QSqlTableModel by value in the column?

Спасибо за ответ. Нет, дело не в читаемости кода, в разных таблицах у меня есть столбцы с одинаковым именем, но с разными индексами. Хотел сделать решение по имени столбца для всех таблиц сразу.…
Now discuss on the forum

django rest framework лишние символы

Покажите код сериализатора вашего.

Здравствуйте помогите с qml

нужно высчитывать координаты того, что должно двигаться, полагаю, что тот маленький круг, и в случае выхода за пределы круга менять переменную типа bool на true/false, которая в свою очередь буд…
  • BlinCT
  • Jan. 30, 2023, 11:59 a.m.

Обращение к сигналу из qml который реализован в другом потоке

Хотя есть мысль что я не правильно создаю реакцию на данный сигнал. Но вроде как правильно все.
VA

Как добавить виртуальную клавиатура с Т9 в своей проект на QML.

Добрый день. Прошу помочь, пишу небольше приложение в Qt. Добвил в свой проект виртуальную клавиатуру от Qt. Но как добавить в него возможность изменения Т9 никак не могу понять.
P
About
Services
© EVILEG 2015-2022
Recommend hosting TIMEWEB