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Updated: Jul 30, 2026

07:49
Development of an Experimental Setup for the Measurement of the Coefficient of Restitution under Vacuum Conditions
Published on: March 29, 2016
[Development of the coaxial-cylinders-type coagulometer]
Jun Wen1, Li-sheng Zhong, Xue-min Qu
1State Key Laboratory of Electrical Insulation for Power Equipment, Xi'an Jiaotong University.
Summary
This study introduces an automated instrument that measures blood shear stress to determine four key coagulation parameters. The device accurately tracks blood clotting processes with high repeatability for individual samples.
Area of Science:
- Biomedical Engineering
- Hematology
- Rheology
Context:
- Blood coagulation is a complex process vital for hemostasis.
- Accurate and automated measurement of coagulation parameters is crucial for clinical diagnostics.
- Existing methods may lack automation or comprehensive parameter analysis.
Purpose:
- To develop and validate an automated instrument for blood coagulation analysis.
- To determine four key coagulation parameters (t(r), delta tau/delta t, tau(max), S) through shear stress detection.
- To assess the instrument's performance in terms of accuracy and repeatability.
Summary:
- An instrument automatically detects changes in blood shear stress to quantify four coagulation parameters: t(r), delta tau/delta t, tau(max), and S.
- The device provides automated detection of the blood coagulation process, generating coagulation curves.
- Significant variations were observed between different blood samples, yet high repeatability was achieved for identical samples.
Impact:
- Enables rapid and automated assessment of blood coagulation.
- Provides a novel method for determining multiple coagulation parameters simultaneously.
- Potential for improved diagnostic accuracy and efficiency in coagulation testing.
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