1.Three-dimensional Finite Element Analysis of Lumbar Ligaments
Liyang DAI ; Kaiyuan TU ; Yinkan XU ; Wenming ZHANG ; Peilai CHENG
Academic Journal of Second Military Medical University 1982;0(02):-
The lumber ligaments play an important role in spinal bsomechanics. The results of three-dimensional finite element analysis showed that one of functions of lumbar ligaments is transmission of the tensile load between the lumbar vertebrae. The anterior longitudinal ligament is loaded in extension of lumbar spine and the resistance to the tensile load in flexion is provided by other ligaments. These ligaments are subject to much more tension with degsneration of the intervertebral disc so that a series of pathological changes occur. Relevant significance in clinical aspect is also discussed.
2.Discussion Oil innovation and applicationy of"four separated management of goods" in hospital
Peilai HAO ; Yan WU ; Jialun HUANG ; Zhigang ZHANG ; Yingen LIU ; Tongwei XU ; Xiuzheng ZHAO
Chinese Journal of Medical Science Research Management 2008;21(5):271-273,275
We originally created the theory of "four separated" management of goods, by which we achieved the effective administration in the aspects of check and approval, purchase, safekeeping and usage of materials in our hospital. Combining with practical work of our hospital, this article analyzed and summarized the theory, application, effect and significance of the "four separated" management of the goods.
3.Three-dimensional localization system for intra-body microcapsule based on alternating magnetic field.
Peilai ZHANG ; Guozheng YAN ; Pingping JIANG ; Wenxing WANG
Journal of Biomedical Engineering 2010;27(2):245-248
In order to determine the position of an intra-body microcapsule, the system based on alternating magnetic field has been promoted. According to the theory of three-dimensional localization system, the mathematical model has been ratiocinated. Composing and software design of the system are given. The result of the experiment has demonstrated that the system is feasible and it performs with high precision. The position error is less than 3 cm when the range is between 3 and 30cm. And the system has good anti-interference ability.
Algorithms
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Capsule Endoscopy
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Electromagnetic Fields
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Humans
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Imaging, Three-Dimensional
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instrumentation
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Magnetics
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instrumentation
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Models, Theoretical
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Phantoms, Imaging
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Software