发布求助
文献互助 智能选刊 最新文献

1993 IEEE Annual Northeast Bioengineering Conference最新文献

筛选
英文 中文
The effects of the systemic arterial system on coronary blood flow 全身动脉系统对冠状动脉血流的影响
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404436
D. S. Berger, J.K. Li
{"title":"The effects of the systemic arterial system on coronary blood flow","authors":"D. S. Berger, J.K. Li","doi":"10.1109/NEBC.1993.404436","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404436","url":null,"abstract":"The authors investigate the relationship between the arterial system load and coronary circulation with the aid of a closed-loop model of the circulation. Altering the arterial system parameters leads to the prediction that coronary perfusion is highly sensitive to the arterial load.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123287445","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: 2
Vascular autoregulation in a model using mechanosensory ion channels 利用机械感觉离子通道的血管自动调节模型
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404432
W. Craelius
{"title":"Vascular autoregulation in a model using mechanosensory ion channels","authors":"W. Craelius","doi":"10.1109/NEBC.1993.404432","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404432","url":null,"abstract":"Mechanosensory ion channels (MACs) are incorporated into a myogenic model, which states that blood flow is regulated, in part, through feedback regulation of vessel diameter, which is controlled by smooth muscles surrounding the afferent arterioles. Feedback to the smooth muscle effectors is provided by tension-dependent currents from MACs, consisting mainly of K/sup +/ efflux. Smooth muscles respond to depolarizing K/sup +/ currents by contraction. The model shows the ability of vascular beds to autoregulate flow in the presence of changing arterial pressures.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125156663","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: 0
Simulation of brain death for detection and diagnosis 模拟脑死亡的检测和诊断
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404403
L. Sarma, J. LaCourse, S. Selikowitz, S.H. Nain, M. Merris
{"title":"Simulation of brain death for detection and diagnosis","authors":"L. Sarma, J. LaCourse, S. Selikowitz, S.H. Nain, M. Merris","doi":"10.1109/NEBC.1993.404403","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404403","url":null,"abstract":"An electrical analog model of the arterial system of the upper extremities of a Yuvatan swine is presented. The model is used for studying the brain death conditions by measuring the intraoccular pressure (IOP). The data obtained with this model have been correlated to the biological data.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129469123","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: 0
A multicompartmental model for simulation of soluble gas exchange in the lungs 模拟肺部可溶气体交换的多室模型
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404407
A. Ritter, C. Varadhan, D. Kristol
{"title":"A multicompartmental model for simulation of soluble gas exchange in the lungs","authors":"A. Ritter, C. Varadhan, D. Kristol","doi":"10.1109/NEBC.1993.404407","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404407","url":null,"abstract":"A lung model for soluble gas exchange that will allow quantitative estimation of the pharmacokinetics of inhaled anesthetic agents is described. This lung model is coupled to a whole body hemodynamic model given by B. Pu/spl acute/ramic (M.S. thesis, New Jersey Inst. of Techn., 1992). The partial pressure of a soluble gas in the pulmonary artery (PPA), the integrated average pulmonary capillary pressure (PPC), and the partial pressure of gas in the pulmonary vein (PPV) system for one set of simulation values are shown. The partial pressures of the gas in the three lung capillary zones are also given.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130403601","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: 0
Recreating life-like motion in robotic limbs 在机械肢体中重现栩栩如生的动作
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404394
S. Wolpert, M. Cho
{"title":"Recreating life-like motion in robotic limbs","authors":"S. Wolpert, M. Cho","doi":"10.1109/NEBC.1993.404394","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404394","url":null,"abstract":"A study in which the motion of living limbs was characterized and formulated for the control of mechanical limbs is discussed. Trajectories of human elbow joints performing a blind reaching motion were digitized and smoothed using an A/D converter on a personal computer. Waveforms for position over time were recorded and velocity and acceleration waveforms derived from them. Trajectories were normalized with respect to time and amplitude and a polynomial curve and its first two derivatives fitted to them. Finally, the human trajectories were compared to that of a robotic arm controlled by a biologically based algorithm using artificial nerve cells.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116897339","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
Effect of the number of external markers in multimodal 3-D image registration 多模态三维图像配准中外部标记数的影响
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404368
A. Abche, G. Tzanakos, E. Micheli-Tzanakou
{"title":"Effect of the number of external markers in multimodal 3-D image registration","authors":"A. Abche, G. Tzanakos, E. Micheli-Tzanakou","doi":"10.1109/NEBC.1993.404368","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404368","url":null,"abstract":"The minimum number of external markers that is needed for a multimodal 3-D image registration is studied quantitatively by using Monte-Carlo techniques. Using computer simulation, test images are generated over the head in both modalities using a predefined transformation. The optimized transformation obtained from a set of matched external markers using the simplex minimization method followed by a variable metric method is applied to these images to study how good the registration is with a given number of markers. The authors studied the /spl chi//sup 2/ per degree of freedom and the residuals as a function of the number of external markers. It is found that the registration is optimum for 10 markers and above.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133093631","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: 3
Mid infrared spectroscopic absorption and whole blood cholesterol 中红外光谱吸收与全血胆固醇
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404427
N. Haq, M. Fox, A. Garton, R. Northrop
{"title":"Mid infrared spectroscopic absorption and whole blood cholesterol","authors":"N. Haq, M. Fox, A. Garton, R. Northrop","doi":"10.1109/NEBC.1993.404427","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404427","url":null,"abstract":"The application of mid-infrared spectroscopy to whole, unheparinized blood is discussed. The observed spectra are characteristic and reproducible. Furthermore, a direct correlation was observed between blood cholesterol levels and absorbance curves. Research is underway to precisely determine the cause and theory behind this effect. Near-IR, however, was found to be of no significance in single beam transmission studies.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131610327","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: 2
Multiresolution source localization using the wavelet transform 使用小波变换的多分辨率源定位
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404404
Mingui Sun, Fu-Chrang Tsui, R. Sclabassi
{"title":"Multiresolution source localization using the wavelet transform","authors":"Mingui Sun, Fu-Chrang Tsui, R. Sclabassi","doi":"10.1109/NEBC.1993.404404","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404404","url":null,"abstract":"The use of the wavelet transform to localize the current dipole sources from the multichannel electroencephalogram (EEG) is discussed. The wavelet approach automatically computes the critical time-slices at which the dipole sources are localized. Unlike the traditional approaches, where visually selected time-slices are used which represent only part of the information available in the data, the automatically computed time-slices are information-preserving. As a result, the EEG can be closely reconstructed using the parameters at each computed time-slice. In addition, the multiresolution framework of the wavelet transform provides a mathematical zoom lens which enables one to select major electrical sources at courser scale levels, and to observe the details at finer scale levels.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121551020","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: 5
Comparison of normal and amputee gait with added weight 体重增加时正常与截肢者步态的比较
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404349
W. Boda, T. Findley, W. Tapp, S. Reisman, M. Lacker, H. Chaudry, S. Sisto, D. Cordero, A. Davis
{"title":"Comparison of normal and amputee gait with added weight","authors":"W. Boda, T. Findley, W. Tapp, S. Reisman, M. Lacker, H. Chaudry, S. Sisto, D. Cordero, A. Davis","doi":"10.1109/NEBC.1993.404349","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404349","url":null,"abstract":"The area of prosthetic design has long focused on the lightest and presumably most energy efficient designs of prosthetics. Tests to measure energy efficiency are often time consuming or require expensive metabolic equipment. Therefore, it has been assumed that lighter designs are better than heavier ones. However, simple measures such as maximum ambulation time have been shown to be useful for determining functional status in clinical populations. In the study described, a 1-lb weight was attached to the ankle to simulate prosthetic design changes: specifically, to manipulate weight asymmetry between legs. Normal controls and amputees were analyzed with and without added weight during a maximum ambulation time test and during walking on a treadmill. In addition to metabolic data, kinematic data were analyzed to obtain biomechanical gait parameters.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125498222","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: 3
The effect of frequency on electric field induced surface force in red blood cell membrane 频率对电场诱导红细胞膜表面力的影响
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404405
S. Chang
{"title":"The effect of frequency on electric field induced surface force in red blood cell membrane","authors":"S. Chang","doi":"10.1109/NEBC.1993.404405","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404405","url":null,"abstract":"The use of electric field induced surface force acting on a red blood cell membrane to explain the observed sphering and hemolysis of the cell when exposed to the field is discussed. The frequency of the applied sinusoidal field inversely affects the field strengths at which sphering and hemolysis occur. Increase in frequency decreases the magnitude of the surface force. The effect appears to be the result of an /spl alpha/-dispersion of the dielectric property of the cell membrane.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120954894","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信