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Comparative EMG classification of index finger 食指肌电图分类比较
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026365
Eda Capa, Y. Cotur, Caner Gumus, E. Kaplanoglu, M. Ozkan
{"title":"Comparative EMG classification of index finger","authors":"Eda Capa, Y. Cotur, Caner Gumus, E. Kaplanoglu, M. Ozkan","doi":"10.1109/BIYOMUT.2014.7026365","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026365","url":null,"abstract":"In this study electromyography (EMG) signals obtained from index finger movements are analysed and classified in two separated methods and results are compared as a pre-study of dexterous anthropomorphic prosthesis hand project. The index finger differs from other hand digits for its tendon structure and higher mobility capabilities. The relation between the EMG signal and movement of the index finger is a key to understanding how the finger performs the tasks such as grasping and postures. Signals are measured from two different muscle groups and classified by grasping and positions. Finite State Machine (FSM) and Artificial Neural Network (ANN) are used for classification. Also the study indicates the effects of signals from index finger motions on a myoelectric controlled prosthetic hand.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130990198","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
Gait measurement using Radial Basis Function Networks and comparison of its performance with analytical methods 基于径向基函数网络的步态测量及其与解析方法的性能比较
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026393
K. Akdogan, A. Yilmaz
{"title":"Gait measurement using Radial Basis Function Networks and comparison of its performance with analytical methods","authors":"K. Akdogan, A. Yilmaz","doi":"10.1109/BIYOMUT.2014.7026393","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026393","url":null,"abstract":"In this study, Radial Basis Function Networks (RBFN), a neural networks structure, is investigated to employ in sensor based motion measurement system of an electronic above knee prosthesis that ensures above knee amputees walk at varying speed. Having gait measurements of a custom designed image based measurement system as a reference, motion measurement performance of RBFN is compared with the performance of analytical methods on basis of knee angle measurements. Accuracy of knee angle estimations of RBFN is observed to be better than the accuracy of analytical methods using only accelerometers, other one using combination of accelerometer and gyroscope and another one called virtual sensor method. One advantage over analytical methods that RBFN offers is the possibility of decreasing number of sensors required to estimate knee angle. Even in case of single accelerometer attached on shank where lowest performance in knee angle estimation is observed, accuracy of RBFN is higher than the one analytical methods provide. From results of experiments, it is found that gyroscopes affects performance more than accelerometers do in knee angles estimation of RBFN.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121801154","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
Finite State Control of semi active knee joint with pneumatic damper 气动阻尼器半主动膝关节的有限状态控制
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026357
Tuna Orhanli, A. Yilmaz
{"title":"Finite State Control of semi active knee joint with pneumatic damper","authors":"Tuna Orhanli, A. Yilmaz","doi":"10.1109/BIYOMUT.2014.7026357","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026357","url":null,"abstract":"This study presents the semi active knee prosthesis with pneumatic cylinder performing under Finite State Control. For this purpose, the similarities between walks with the prosthesis and the normal gaits were examined morphologically. The finite state control of the prosthesis with pneumatic cylinder was developed under the basis of number of phases on the gait provided by direct measurement system. Associated gait phases and walking speeds were obtained from gyroscope signal and its derivatives, in a normalization algorithm. Stance and swing phase controlled prosthesis walking is the best control scenario for semi active-knee prosthesis with pneumatic cylinder than three phase and five phase control. In order to examine the performance of the prosthesis, the knee angle in degree has been considered as a comparison criterion. Associated performance tests were conducted both with image based motion measurement system and direct type motion measurement system.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115658680","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 feasibility study of communication with cold stimulations 冷刺激通信的可行性研究
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026337
E. Budak, M. Yıldız
{"title":"A feasibility study of communication with cold stimulations","authors":"E. Budak, M. Yıldız","doi":"10.1109/BIYOMUT.2014.7026337","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026337","url":null,"abstract":"Some part of available sytems which requires surgery (cohlear implant) for communication of completely deaf people, other parts just heal for one side hearing impaired people (soundbite technologies). Thus, there are lot of research of tactiles that are methods for communication through skin. However, existing communication systems's speed are too low, also devices couldn't move because, they working with electricity and have big massive. In this paper we have developed alternative communication method that the system uses cold stimulus for transfer characters through skin and also first tests have been done. We used peltiers for exist to cold stimuli and developed a computer based control system to transfer to peltiers via coding. We saw that subjects perceived two stimulus per second at one point of their forearms. But when we used more than one stimulus for coding characters, perception percent get low. Overall of results, we prove that communication with thermal way is alternative method that gives promise.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128801158","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
Temperature monitored low dose ICG-PDT treatment of neuroblastoma cell lines 温度监测下低剂量ICG-PDT治疗神经母细胞瘤细胞系
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026367
O. Kaya, Ayşe Ak, M. Gulsoy
{"title":"Temperature monitored low dose ICG-PDT treatment of neuroblastoma cell lines","authors":"O. Kaya, Ayşe Ak, M. Gulsoy","doi":"10.1109/BIYOMUT.2014.7026367","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026367","url":null,"abstract":"Photodynamic therapy (PDT) is a noninterventional technique used for cancer treatment. It makes use of a chemical agent sensitive to a specific wavelength of light and corresponding laser exposure. In our study, the effect of PDT with low concentration (5 μg/ml) indocyanine green (ICG) on the neuroblastoma cell lines (SH-SY5Y) was investigated. The cell lines (n = 7) were incubated for 24 hours after the administration of ther ICG. PDT was achieved with continuous wave laser irradiation (λ = 809 nm, 100 mW/cm2) for a dose of 60 J/cm2. An infrared thermocouple sensor was focused in one of the wells for thermal monitoring. Temperature increase was not observed in any group during the treatment. Cell viability was measured by XTT assay. Laser, ICG and ICG-PDT groups showed a statistically significant decrease in cell viability. The cell viability decrease in ICG-PDT group was determined as approximately 83% in comparison to the control group (p<;0.01). ICG-PDT treatment has cytotoxic effects on neuroblastoma cell lines. Further research on this subject should focus on determining the ideal ICG concentrations and laser parameters.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122941763","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 2.45 GHz electromagnetic radiation on evolution of lactobacillus rhamnosus 2.45 GHz电磁辐射对鼠李糖乳杆菌进化的影响
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026380
B. Yalcinkaya, A. Sofu, O. Coskun, S. Comlekci
{"title":"Effect of 2.45 GHz electromagnetic radiation on evolution of lactobacillus rhamnosus","authors":"B. Yalcinkaya, A. Sofu, O. Coskun, S. Comlekci","doi":"10.1109/BIYOMUT.2014.7026380","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026380","url":null,"abstract":"Nowadays, the use of a wireless network as well as all over the world has increased very quickly. Although WLAN system constitute an important part of our lives almost on a daily, even though there is clear evidence of harmful effects on health available. This idea of the present study was exposed to 2.45 GHz electromagnetic field L. rhamnosus studied on the development of bacteria. Bacterial culture is divided into 16 falcon tube with 15 ml of sterile conditions. During the test tubes were divided into the two groups, control groups (n = 8) and test groups (n = 8). 2.45 GHz half-wave dipole antenna is used as the source of the electromagnetic field, 1 watt maximum power density tubes were exposed to radiation. These two groups throughout the experiment samples were taken one-hour intervals for 8 hours. (experimental group and control group) Effect of pH eliminated at this stage, only time and was working on. Experiment lasted for 8 hours, and was made in sterile environments. Analyzing the results of the experiment the experimental group of L. rhamnosus bacteria grow in less than control group of L. rhamnosus bacteria. The experimental group reach the period of dead earlier than the control group, were found. As a result, the electromagnetic radiation which emitted by the dipole antenna was affected by bacteria of L. rhamnosus.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116922198","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
Analysis of heart diseases from ECG signal 从心电信号分析心脏病
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026342
Tugçe Kantar, Ovul Koseoglu, A. Erdamar
{"title":"Analysis of heart diseases from ECG signal","authors":"Tugçe Kantar, Ovul Koseoglu, A. Erdamar","doi":"10.1109/BIYOMUT.2014.7026342","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026342","url":null,"abstract":"At the present time, the main method used in the diagnosis of heart disease is the electrocardiography (ECG). The purpose of this study is design a decision support algorithm which automatically detect the normal sinus rhythm or other pathologies. The improved algorithm will provide support to the doctor can be also used for educational purposes. Within the scope of this study,with the design of the rule based algorithm which automatically detect a normal sinus rhythm and non normal sinüs rhythm, in total it can detect eight pathologies. In maincode there are thirteen functions that are used for diagnose eight different ECG pathology automatically. Higher success is being anticipated in future for the prediction power of the developed method with continuing research on the matter.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127201914","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
Design and implementation of a manually portable device to spectroscopically assess fruit quality 一种手动便携式水果品质光谱评估装置的设计与实现
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026361
A. Sarıkaş, Merve Dogruyol, I. Cilesiz
{"title":"Design and implementation of a manually portable device to spectroscopically assess fruit quality","authors":"A. Sarıkaş, Merve Dogruyol, I. Cilesiz","doi":"10.1109/BIYOMUT.2014.7026361","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026361","url":null,"abstract":"As they are directly related to people's health and social progress, food safety and quality are important issues in food industry. A rapid nondestructive sensing technique will be very useful to monitor and manage different working steps in horticultural production, at harvest as well as in pre-harvest and postharvest processing. Due to fast response, the influence of different external factors like geographical site, weather and soil conditions, nutrition status, and alike can be assessed early-on during plant development and the producer may take appropriate measures at an earlier date than conventional. External properties such as shape, color, size, firmness, and alike are indicators of internal properties, such as soluble solids content, acidity, vitamin content, sugar content, water content, and alike. Evaluating data obtained from preliminary laboratory studies by using a spectrophotometer, a prototype manually portable device which measures in 400 to 1100 nm wavelength range was developed. Thanks to LED light sources, thermal damage to the tested fruit tissue is prevented. Users can easily control the device and are able to monitor measurements with appropriate hardware and firmware interface. In addition, with measurement transmitted to a computer using Bluetooth technology, processing and assessment of data is easily managed.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123361433","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
Non-contact heart rate estimation in pediatric intensive care units 儿童重症监护病房的非接触心率估计
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026335
U. Bal, A. Bal
{"title":"Non-contact heart rate estimation in pediatric intensive care units","authors":"U. Bal, A. Bal","doi":"10.1109/BIYOMUT.2014.7026335","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026335","url":null,"abstract":"In this study, we proposed a method for computation of heart rate (HR) from digital color video recordings of the human face. In order to extract photoplethysmographic signals, two orthogonal vectors of RGB (Red Green Blue) color space are used. We used a dual tree complex wavelet transform based denoising algorithm to reduce artifacts (e.g. artificial lighting, movement, etc.). Most of the previous work on skin color based HR estimation performed experiments with healthy volunteers and focused to solve motion artifacts. In addition to healthy volunteers we performed experiments with child patients in pediatric intensive care units. In order to investigate the possible factors that affect the non-contact HR monitoring in a clinical environment, we studied the relation between hemoglobin levels and HR estimation errors. Low hemoglobin causes underestimation of HR. Nevertheless, based on our results, it was concluded that our method could provide acceptable accuracy to estimate mean HR of patients in a clinical environment, especially given that the measurements can be performed remotely.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116496088","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
Image-processing based determination of kinesiologic parameters of spasticity patients 基于图像处理的痉挛患者运动学参数测定
2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026387
Y. Albayrak, Mehmet Dağli, Ozcan Asilkan, A. Yardimci, S. Bilgin, H. Uysal
{"title":"Image-processing based determination of kinesiologic parameters of spasticity patients","authors":"Y. Albayrak, Mehmet Dağli, Ozcan Asilkan, A. Yardimci, S. Bilgin, H. Uysal","doi":"10.1109/BIYOMUT.2014.7026387","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026387","url":null,"abstract":"In this study, it is aimed to obtain Patella T-Reflex kinesiologic parameters on spasticity patients by using image processing methods and thereby extracting objective data for the evaluation of spasticity patients. For this reason, the movement of Patella T-reflex response to knee joint was recorded with the help of a camera after three LED markers placed on the knee joint. For the correctness of the pattern of the movements, data were compared with two-axis goniometer of Biometric Ltd company and thereby it was shown that the reflex patterns are identical. Thereon, using the software we have developed, the Patella T-reflex kinesiologic parameters were calculated and data were obtained for objective evaluation of the Spasticity patients.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126951774","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
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