Multiple external network access switches

This article shows you how to create and configure your virtual switch using Hyper-V Manager or PowerShell. A virtual switch allows virtual machines created on Hyper-V hosts to communicate with other co. [PDF]

Design Based on Passive Optical Network Technology

For TDM-PON, a passive optical splitter is used in the optical distribution network. In the upstream direction, each ONU (optical network units) or ONT (optical network terminal) burst transmits for an assigned time-slot (multiplexed in the time domain). In this way, the OLT is receiving signals from only one ONU or ONT at any point in time. In the downstream direction, the OLT (usually) continuously transmits (or may burst transmit). ONUs or ONTs see their own data through the address labels embe. [PDF]

Spectrophotometric Analyzer

Spectrophotometry is a tool that hinges on the quantitative analysis of molecules depending on how much light is absorbed by colored compounds. Important features of spectrophotometers are spectral bandwidth (the range of colors it can transmit through the test sample), the percentage of sample transmission, the logarithmic range of sample absorption, and sometimes a percentage of reflect. SummarySpectrophotometry is a branch of concerned with the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. Spectropho. Invented by in 1940 , the spectrophotometer was created with the aid of his colleagues at his company National Technical Laboratories founded in 1935 which would become Beckman Instrument Company a. There are two major classes of devices: single-beam and double-beam. A double-beam spectrophotometer compares the light intensity between two light paths, one path containing a reference sample and the other the te. [PDF]