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Related Concept Videos

Stress: General Loading Conditions01:15

Stress: General Loading Conditions

To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
Exercise Stress Test01:26

Exercise Stress Test

Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Applications of Stress01:04

Applications of Stress

Consider a structure made of a boom and a rod designed to support a load. These two components are connected by a pin and stabilized by brackets and pins. The boom and the rod are detached from their supports to assess the different stresses imposed on this structure, and a free-body diagram is drawn. Then, all the forces applied, including the load acting on the structure, are identified. The reaction forces exerted on both the boom and the rod are computed using the equilibrium equations.
The...
Nursing Clinical Information System01:27

Nursing Clinical Information System

Nursing Clinical Information System (NCIS)
A Nursing Clinical Information System (NCIS) is a specialized type of healthcare information system tailored to meet the unique needs of nursing practice. It incorporates the principles of nursing informatics to streamline information management and improve the quality of care delivery.
Critical attributes of NCIS include:
Stress Concentrations01:13

Stress Concentrations

The concept of stress concentration is crucial for understanding how materials respond under bending stresses, particularly when there are irregularities or discontinuities in the material's geometry. Normally, stress in a symmetric member subjected to pure bending is assumed to be uniformly distributed across the entire cross-section. However, this assumption does not hold when there are variations in the cross-sectional geometry or the presence of notches and holes.
The stress concentration...
Stress Concentrations01:24

Stress Concentrations

Stress concentration is when stress intensifies near discontinuities such as holes or abrupt cross-sectional changes in a structural member. This localized stress can often surpass the average stress within the member. The stress distribution in flat bars, either with a circular hole or varying widths connected by fillets, can be determined experimentally using a photoelastic method. The results are based on ratios of geometric parameters like the ratio of the hole's radius to the smaller width...

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Scenario-based stress testing of an electronic patient record system in a thin-client computing implementation.

Kei Teramoto1, Shigeki Kuwata, Andre W Kushniruk

  • 1Division of Medical Informatics, Tottori University Hospital, Yonago, Tottori, Japan. kei-tera@umin.net

Studies in Health Technology and Informatics
|February 22, 2011
PubMed
Summary

Implementing thin-client computing (TCC) requires accurate server sizing. Stress testing server sizing methods for electronic patient records showed potential for steady system operation, but scenarios need refinement for better performance estimation.

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Area of Science:

  • Health Informatics
  • Computer Science
  • Systems Engineering

Background:

  • Thin-client computing (TCC) implementation necessitates precise centralized server specification (server sizing).
  • Accurate server sizing is crucial for the stable performance of TCC systems, especially in healthcare settings.
  • Electronic patient record (EPR) systems are increasingly deployed using TCC.

Purpose of the Study:

  • To evaluate the effectiveness of server sizing methodologies for TCC systems.
  • To assess the practical utility of server sizing methods in the context of an electronic patient record system.
  • To identify areas for improvement in server sizing scenarios for TCC.

Main Methods:

  • Development of eight distinct scenarios based on practical EPR usage.
  • Implementation of TCC in a hospital setting utilizing the defined server sizing methods.
  • Stress testing of the server sizing methods to evaluate system performance.

Main Results:

  • Stress testing of one server sizing method supported consistent system operation.
  • The study identified that current scenarios require enhancement to mirror real-world workflows.
  • A more precise estimation of centralized server performance in TCC is achievable with improved scenarios.

Conclusions:

  • Server sizing methods show promise for TCC stability, particularly with stress testing.
  • Refining scenarios to better reflect practical clinical workflows is essential for accurate server performance prediction.
  • Further research into scenario optimization can enhance the reliability of TCC deployments in healthcare.