Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference最新文献_第4页

Changes in trunk and spine biomechanics during repetitive fatiguing exertions 重复疲劳运动时躯干和脊柱生物力学的变化

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493270

K. Granata, W. Marras

引用次数: 5

Analysis of sympathetic nerve activity by power spectrum of arterial pressure fluctuations: effects of salt-induced hypertension and calcium supplementation in rats 用动脉压波动功率谱分析交感神经活动:盐致高血压和补钙对大鼠的影响

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493264

K. Ju, T. Kuwaki, A. Ono, T. Tujita, M. Kumada

引用次数: 0

Digital image processing for detection of wooden foreign bodies in plain radiographs of chicken thighs 鸡大腿平片中木质异物检测的数字图像处理

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493137

J. Hoffmeister, G.J. Reese, R. Ten Eyck, F. Smeeks

引用次数: 0

Preparation of granulated materials on the hydroxylapatite base 羟基磷灰石基颗粒状材料的制备

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493282

A. P. Arsenjev, P. A. Arsenjev, N. Saratovskaja, M. J. Sheinin

{"title":"Preparation of granulated materials on the hydroxylapatite base","authors":"A. P. Arsenjev, P. A. Arsenjev, N. Saratovskaja, M. J. Sheinin","doi":"10.1109/SBEC.1996.493282","DOIUrl":"https://doi.org/10.1109/SBEC.1996.493282","url":null,"abstract":"In various areas of implantology granulated hydroxylapatite (HA) is used successfully for restoration of different bone defects in the human skeleton. In the present work when speaking about granulated HA the authors mean pure stoichiometrical HA, in which phase and chemical composition correspond to the USA standard. For control purposes the authors used X-ray diffraction analysis and infra-red spectroscopy. The techniques used by the authors for granulation exclude a possibility of preparing amorphous materials. Therefore in all cases granules represent polycrystalline bodies. In terms of sizes of granules there are 4 groups of materials in the authors' experience: 1) The micron size particles (1-50 microns) or powder, in which dispersion can be adjusted by synthesis conditions (the problem of the preparation of these materials is considered separately). 2) Particles with a size of 0.25-0.5 mm. 3) Particles with a size of 0.5-1.0 mm. 4) Particles with a size of 1.0-2.0 mm. The present work is devoted to manufacturing the last 3 groups of granules. The preparation of these materials is possible by many methods, including rolling, pressing, extrusion and crushing HA ceramic blocks with subsequent fractionation. The authors successfully applied two technologies to make granulated HA: 1) Milling of sintered compact HA with subsequent sieving on fractionation. 2) Rolling in a plate-type teflon granulator.","PeriodicalId":294120,"journal":{"name":"Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115658396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Estimation of conduction velocity of A/spl delta/ fibers using heat-pain related somatosensory evoked potentials in humans 利用人体热痛相关体感诱发电位估计A/spl δ /纤维的传导速度

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493166

A. Roy, S. Harkins

引用次数: 0

Interactions between bone and hydroxyapatite filled 4 META/MMA-TBB adhesive cement in vitro and in physiological environment 羟基磷灰石填充4 META/MMA-TBB胶粘剂水泥与骨的相互作用

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493103

R. Lee, M. Ogiso, A. Watanabe, N. Nakabayashi

引用次数: 1

Calcium hydroxylapatite synthesis 羟基磷灰石钙合成

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493281

A. P. Arsenjev, P. A. Arsenjev, N. Saratovskaja, M. J. Sheinin

引用次数: 0

Studies on contact activation after heparin application on patients undergoing end-prosthetic hip implantation and hip replacement 肝素应用于人工髋关节末端置换术后接触活化的研究

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493288

W. Heller, H. Wendel

引用次数: 0

Neural network classification of spatio-temporal EEG readiness potentials 时空脑电准备电位的神经网络分类

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493116

A. Barreto, A. Taberner, L.M. Vicente

引用次数: 7

Determination of the ligamentous and contact forces in the human tibio-femoral joint using a three-dimensional dynamic anatomical model 利用三维动态解剖模型测定人体胫骨-股骨关节的韧带和接触力

Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference Pub Date : 1996-03-29 DOI: 10.1109/SBEC.1996.493229

E. Abdel-Rahman, M. S. Hefzy, T. Cooke

{"title":"Determination of the ligamentous and contact forces in the human tibio-femoral joint using a three-dimensional dynamic anatomical model","authors":"E. Abdel-Rahman, M. S. Hefzy, T. Cooke","doi":"10.1109/SBEC.1996.493229","DOIUrl":"https://doi.org/10.1109/SBEC.1996.493229","url":null,"abstract":"This paper describes for the first time the three-dimensional dynamic response of the tibio-femoral joint when subjected to sudden external loads utilizing a three-dimensional dynamic anatomical model. This model consists of two body segments in contact (the femur and the tibia) executing a general three-dimensional dynamic motion within the constraints of the ligamentous structures. Each of the articular surfaces at the tibio-femoral joint was represented by a separate mathematical function. The joint ligaments were modeled as nonlinear elastic springs. The six-degrees-of-freedom joint motions were characterized using six kinematic parameters and ligamentous forces were expressed in terms of these six parameters. Model equations consist of nonlinear second order ordinary differential equations coupled with nonlinear algebraic constraints. An algorithm was developed to solve this Differential-Algebraic Equations (DAE) system employing a DAE solver, namely the Differential/Algebraic System Solver (DASSL) developed at Lawrence Livermore National Laboratory. Model calculations show that as the knee was flexed from 15/spl deg/ to 90/spl deg/, it underwent internal tibial rotation. However, in the first 15 degrees of knee flexion, this trend was reversed: the tibia rotated internally as the knee was extended from 15/spl deg/ to full extension. This finding is important since it is in agreement with the emerging thought of the need to re-evaluate the so called \"screw-home mechanism\".","PeriodicalId":294120,"journal":{"name":"Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115393420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1