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Related Concept Videos

Reducing Line Loss01:18

Reducing Line Loss

440
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss in...
440
Design Example01:23

Design Example

637
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
637
Block Diagram Reduction01:22

Block Diagram Reduction

619
The process of deriving the transfer function of a control system often involves reducing its block diagram to a single block. This simplification can be achieved through a series of strategic operations, including relocating branch points and comparators. These operations preserve the overall function of the system while allowing for easier manipulation and combination of blocks.
The first step in this process is the identification and relocation of a branch point. A branch point, where a...
619
Health Information Technology and Healthcare Information System01:30

Health Information Technology and Healthcare Information System

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Health Information Technology (HIT)
Health Information Technology, commonly called HIT, integrates advanced information systems and technology in healthcare settings. Its primary functions include:
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Downsampling01:20

Downsampling

767
When considering a sampled sequence with zero values between sampling instants, one can replace it by taking every N-th value of the sequence. At these integer multiples of N, the original and sampled sequences coincide. This process, known as decimation, involves extracting every N-th sample from a sequence, thereby creating a more efficient sequence.
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...
767
Pilot and Numeric Relaying01:21

Pilot and Numeric Relaying

528
Pilot relaying is a type of differential protection used in power systems. It compares electrical quantities at the terminals of equipment via a communication channel instead of direct relay interconnection. This method is essential for transmission lines where the terminals are far apart, typically up to 80 km for lines with 69 to 115 kV ratings. Four types of communication channels are used for pilot relaying:
528

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Related Experiment Video

Updated: Mar 23, 2026

Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization
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How streamlining telecommunications can cut IT expense.

Greg McIntyre

    Healthcare Financial Management : Journal of the Healthcare Financial Management Association
    |March 23, 2016
    PubMed
    Summary

    Hospitals can reduce IT costs by optimizing telecommunications expense management. This involves auditing infrastructure, verifying charges, and improving rates for ongoing savings.

    Area of Science:

    • Health Informatics
    • Information Technology Management

    Background:

    • Healthcare organizations face significant IT expenses.
    • Inefficient telecommunications management contributes to rising costs.

    Purpose of the Study:

    • To outline a telecommunications expense management strategy for hospitals.
    • To identify key steps for reducing IT expenditures in healthcare systems.

    Main Methods:

    • Inventory of existing telecommunications infrastructure.
    • Verification of all associated charges and billing.
    • Optimization of service rates and network design.

    Main Results:

    • Implementation of efficient processes leads to IT cost savings.
    • Systematic approach identifies areas for financial improvement.

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    Conclusions:

    • Effective telecommunications expense management is crucial for healthcare financial health.
    • A structured approach enables sustained IT cost reduction.