2009 14th National Biomedical Engineering Meeting最新文献_第4页

Design and implementation of radio frequency glow discharge system 射频辉光放电系统的设计与实现

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130265

Erhan Ocak, H. A. Yucer, I. Kocum, Dilek Cokeliler

引用次数: 0

A device for functional and cosmetic treatment of the Lagophthalmos due to facial palsy 一种面瘫致Lagophthalmos的功能及美容治疗装置

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130267

M. Aşık, Burak Guclu

引用次数: 0

Production of HAP coating on 316L stainless steel substrates by sol-gel technique 溶胶-凝胶法制备316L不锈钢基板HAP涂层

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130326

F. Ak Azem, A. Cakir

引用次数: 3

Electrically stimulated breast model's thermal imaging simulations 电刺激乳房模型的热成像模拟

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130294

Feza Carlak, N. G. Gencer

{"title":"Electrically stimulated breast model's thermal imaging simulations","authors":"Feza Carlak, N. G. Gencer","doi":"10.1109/BIYOMUT.2009.5130294","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2009.5130294","url":null,"abstract":"Different tissues energy consuming values show differences from each other. Conductivity and metabolic heat source of the tissue alter whether it is healthy or not. The temperature differences of tissues take the thermal infrared imaging into very important and vital point. It was not possible to be able to detect these amounts of differences with the early instrumentation and technology. However, in recent years by the improvement of sensitivity of detectors and cameras it is now possible to sense these amounts of temperature differences. Infrared imaging has a limited performance for the breast cancer diagnosis which occurs especially due to patient moving. Nevertheless, this performance can be improved by applying low frequency currents in medical safety limits. By the help of current application, temperature differences of tissues which have different electrical and thermal properties can be increased and malignant tissue can be distinguished in the obtained thermal image. In this study, woman breast and cancerous tissue are two dimensionally modeled. By using realistic values for regular and cancerous tissue Pennes bio heat equation is solved with finite element method. Simulations are implemented for different tumor locations. Whenever malignant tissue approaches to the skin surface, higher temperature differences are obtained. Imaging performance is increased with current application and tumors can be sensed at 4.5 cm depth with the modern state-of-the-art thermal infrared imagers (possess approximately 10 °mK sensitivity).","PeriodicalId":119026,"journal":{"name":"2009 14th National Biomedical Engineering Meeting","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123867796","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

Detection of BIS stage levels via fuzzy clustering approach 利用模糊聚类方法检测BIS阶段水平

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130356

Gözde Ulutagay, E. Nasibov

引用次数: 1

Classification of microorganism species using Discriminant Analysis 用判别分析法对微生物种类进行分类

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130303

B. H. Aksebzeci, S. Kara, M. H. Asyali, Yasemin Kahraman, O. Er, E. Kaya, H. Ozbilge

{"title":"Classification of microorganism species using Discriminant Analysis","authors":"B. H. Aksebzeci, S. Kara, M. H. Asyali, Yasemin Kahraman, O. Er, E. Kaya, H. Ozbilge","doi":"10.1109/BIYOMUT.2009.5130303","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2009.5130303","url":null,"abstract":"Identification of microorganisms causing root canal infections is an important step in the treatment of these infections. Cultivating the microorganism involved is a relatively difficult and time consuming process. Therefore, clinicians prefer to follow a treatment method based on their prior experience, rather than identifying the related pathogen microorganism and choosing a treatment strategy accordingly. In this study, we have acquired odor data using an electronic-nose equipment with 32 carbon polymer sensors, from pure cultures of 7 microorganisms which are typical causes of root canals infections. We have worked on 28 specimens that are prepared at the Microbiology Laboratory of Pharmacy Faculty. Therefore, there were 4 odor data samples for each of the 7 microorganism types. We have then processed odor data using different pre-processing and dimensions reduction methods and obtained 18 different datasets. We have finally classified these datasets into 7 groups using Discriminant Analysis (DA) and investigated performance of several subtypes of DA algorithm, namely linear, Mahalanobis and quadratic. We have observed that the quadratic approach produces relatively better classification performance. Besides, we have figured out the impact of different pre-processing methods on the classification accuracy.","PeriodicalId":119026,"journal":{"name":"2009 14th National Biomedical Engineering Meeting","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129561820","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

The biomechanİcal properties of meniscus 半月板的biomechanİcal特性

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130364

H. Hasan, Cecen B. Berivan, B. Lutfu, Erduran D. Mehmet, Karakasli E. Ahmet

引用次数: 1

Interactive education system for medicine and engineering using three dimensional virtual environments 基于三维虚拟环境的医学与工程交互教育系统

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130329

Ugras Erdogan, A. Ozkurt, M. Ozgoren, C. Guzelis, Y. Abacioğlu, O. Dicle

{"title":"Interactive education system for medicine and engineering using three dimensional virtual environments","authors":"Ugras Erdogan, A. Ozkurt, M. Ozgoren, C. Guzelis, Y. Abacioğlu, O. Dicle","doi":"10.1109/BIYOMUT.2009.5130329","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2009.5130329","url":null,"abstract":"Three dimensional modeling and simulation software are becoming more widespread in many fields with the emphasis on engineering, military and medical applications. The main important features of these applications are fast prototyping, simulation of scientific and engineering problems under different conditions and interactive user interface. Therefore, an opportunity for a fast visual education course and understanding the physical and mathematical reasons lying under the problems is presented to engineers, military and scientific researches in the respective fields. The main requirements of these applications are high performance computer systems and user interfaces that feature an easier interaction. The fast developing computer architecture maintains the necessary architecture and enables the applications to improve. Considering above and the expectations of Dokuz Eylül University Faculty of Medicine, the development of a virtual environment software that will model the predefined medical processes with user interaction has been aimed. In this paper, the 1. section is reserved for basic concepts and field applications. The hardware and software infrastructure and algorithm development process we used are presented in the 2. section. The 3. section presents the completed stages and first results of our application. The final section which is the 4. section is reserved for the conclusion and future work.","PeriodicalId":119026,"journal":{"name":"2009 14th National Biomedical Engineering Meeting","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122628164","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

Diagnosis of Prostat Cancer using Artificial Neural Networks 应用人工神经网络诊断前列腺癌

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130296

M. Sinecen, Murat Çinar, Omer Karal, M. Engin, Y. Z. Atesçi, Metehan Makinaci, B. Cakmak

引用次数: 0

Shockwave simulation in electrohydrolic lithotripsy and wave performance optimization 电液碎石中的冲击波模拟及冲击波性能优化

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130284

E. Çiftçi, B. Yilmaz

{"title":"Shockwave simulation in electrohydrolic lithotripsy and wave performance optimization","authors":"E. Çiftçi, B. Yilmaz","doi":"10.1109/BIYOMUT.2009.5130284","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2009.5130284","url":null,"abstract":"Lithotripsy systems are commonly used to break kidney stones into fragments. Nowadays these systems are also used in orthopedic operations. There are several ongoing investigational studies on lithotripsy systems in the treatment of cancer and cardiovascular diseases. Because of these new application areas we need novel lithotripter designs for different kinds of treatment strategies. The best way to reduce design time and cost is to create a computational model of the lithotripsy system. In this study the finite difference time domain (FDTD) method were used while constructing the computational model of the lithotripsy system. While implementing the model, most of the physical system parameters were defined as an input and/or as a variable in the simulations. We tested several realistic parameters used in the simulations and compared the results with the expected outcomes and optimized our system accordingly. Finally, we studied the effects of changing the input parameters like ellipsoide reflector size, and focus point misalignment. In conclusion, to reduce design costs in various medical applications that use shockwave principle this computer-based simulation platform may be suitable.","PeriodicalId":119026,"journal":{"name":"2009 14th National Biomedical Engineering Meeting","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126367772","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