... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies最新文献
In telemedicine, the transmission of the cardiac signal or for the diagnosis of an automatic Holter, it is important to model the heartbeat. Our aim in this work is the modeling of the ECG data by neural networks using Radial Base Function RBF. The treatment and cutting of ECG Holter helped us to find the best linear combination of five Gaussians that realizes this model. With a bank of Gaussian functions and using the algorithm Orthogonal Regressive Forward, we achieved an error of 10-4 in the initialization step. The optimization of this modeling is performed by the gradient algorithm.
{"title":"Treatment of cardiac signal for a modeling by RBF","authors":"M. Kedir-Talha, S. Ould-Slimane","doi":"10.1145/2093698.2093757","DOIUrl":"https://doi.org/10.1145/2093698.2093757","url":null,"abstract":"In telemedicine, the transmission of the cardiac signal or for the diagnosis of an automatic Holter, it is important to model the heartbeat. Our aim in this work is the modeling of the ECG data by neural networks using Radial Base Function RBF. The treatment and cutting of ECG Holter helped us to find the best linear combination of five Gaussians that realizes this model. With a bank of Gaussian functions and using the algorithm Orthogonal Regressive Forward, we achieved an error of 10-4 in the initialization step. The optimization of this modeling is performed by the gradient algorithm.","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79134550","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}
Evermore people are suffering from multi-morbidity, an accumulation of different afflictions that mutually affect each other. Simultaneously treatments which were previously conducted stationary are nowadays carried out in home settings. Therefore more and more ICT is employed to support such treatments. However, most of these systems are isolated and not accounting for technical interoperability or the determining factor that different treatments influence each other. An approach for an integrated system to treat multi-morbid patients is presented within this paper. It aims to join various means of monitoring, health data storage and telemedicine into a holistic system to account for the needs of such patients. Already implemented subsystems are presented and considerable advantages of the system under construction are illustrated by a use-case for its application.
{"title":"Intelligent environments supporting the care of multi-morbid patients: a concept for patient-centered information management and therapy","authors":"Lukas Pielawa, A. Helmer, M. Brell, A. Hein","doi":"10.1145/2093698.2093713","DOIUrl":"https://doi.org/10.1145/2093698.2093713","url":null,"abstract":"Evermore people are suffering from multi-morbidity, an accumulation of different afflictions that mutually affect each other. Simultaneously treatments which were previously conducted stationary are nowadays carried out in home settings. Therefore more and more ICT is employed to support such treatments. However, most of these systems are isolated and not accounting for technical interoperability or the determining factor that different treatments influence each other.\u0000 An approach for an integrated system to treat multi-morbid patients is presented within this paper. It aims to join various means of monitoring, health data storage and telemedicine into a holistic system to account for the needs of such patients. Already implemented subsystems are presented and considerable advantages of the system under construction are illustrated by a use-case for its application.","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77497174","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}
In this paper, we describe two cutting-edge technologies for the emerging wearable healthcare applications: application specific integrated circuit (ASIC) and printed electronics on a flexible paper substrate. The ASIC enables a compact integration of active circuit blocks on a chip. Due to its tiny size, the ASIC makes the wearable unit unobtrusive and maximizes the wearer's comfort. The electrical performance of a paper based inkjet printed flexible cable is also exhibited. Combining the two technologies together, an example of electrocardiogram (ECG) signal recording is presented.
{"title":"Bio-chip ASIC and printed flexible cable on paper substrate for wearable healthcare applications","authors":"Geng Yang, Qiansu Wan, Lirong Zheng","doi":"10.1145/2093698.2093774","DOIUrl":"https://doi.org/10.1145/2093698.2093774","url":null,"abstract":"In this paper, we describe two cutting-edge technologies for the emerging wearable healthcare applications: application specific integrated circuit (ASIC) and printed electronics on a flexible paper substrate. The ASIC enables a compact integration of active circuit blocks on a chip. Due to its tiny size, the ASIC makes the wearable unit unobtrusive and maximizes the wearer's comfort. The electrical performance of a paper based inkjet printed flexible cable is also exhibited. Combining the two technologies together, an example of electrocardiogram (ECG) signal recording is presented.","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86212262","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}
In this paper, a novel practical neurocomputing algorithm is introduced and elaborated in order to design and implement a nano-communication network for various applications such as medical and industrial signal processing. Firstly, the idea of artificial neural network (ANN) for data processing is explained and feasibility of modeling a nano-scale network by an optimized neurocomputing algorithm is discussed using binary neuro-modeling. Moreover, it is stressed how nano-scaling increases the complexity of the communication network considering the existing constraints on computation resources, and accuracy of the proposed networking algorithm, either for communication or computation. Furthermore, the developed nano-scale networking technique is more optimized in order to assist the so-called neural nano-machines, to conduct the simple nano-nodes working more effectively and collaboratively. To experiment the performance of the presented bio-inspired nano-network, a practical test scenario is implemented on Imote2 sensor nodes to compare the accuracy of data processing techniques, showing how a large-scale network is replaced by an efficient nano-scale networking algorithm. Finally, the obtained results are illustrated and more elaborated to provide a complete procedure for future developments of the bio-inspired networking in nano-scale.
{"title":"Modeling nano-communication networks using neurocomputing algorithm","authors":"Amir Jabbari, I. Balasingham","doi":"10.1145/2093698.2093801","DOIUrl":"https://doi.org/10.1145/2093698.2093801","url":null,"abstract":"In this paper, a novel practical neurocomputing algorithm is introduced and elaborated in order to design and implement a nano-communication network for various applications such as medical and industrial signal processing. Firstly, the idea of artificial neural network (ANN) for data processing is explained and feasibility of modeling a nano-scale network by an optimized neurocomputing algorithm is discussed using binary neuro-modeling. Moreover, it is stressed how nano-scaling increases the complexity of the communication network considering the existing constraints on computation resources, and accuracy of the proposed networking algorithm, either for communication or computation. Furthermore, the developed nano-scale networking technique is more optimized in order to assist the so-called neural nano-machines, to conduct the simple nano-nodes working more effectively and collaboratively. To experiment the performance of the presented bio-inspired nano-network, a practical test scenario is implemented on Imote2 sensor nodes to compare the accuracy of data processing techniques, showing how a large-scale network is replaced by an efficient nano-scale networking algorithm. Finally, the obtained results are illustrated and more elaborated to provide a complete procedure for future developments of the bio-inspired networking in nano-scale.","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87743800","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}
A three-dimensional (3D) dynamic upper limb model was developed to simulate muscle forces in slightly restricted point-to-point movements. Healthy subjects performed point-to-point movements repetitively with an object held in the hand. The object was either a very light (0.06kg) or a heavier one (2kg). Joint coordinates were recorded. Using joint coordinates, and muscle attachment sites taken from the literature, virtual muscle forces acted during the execution of the movement were calculated for 4 arm muscles. Variances of hand position trajectories, joint configuration trajectories and muscle activities (measured EMG and muscle forces of biceps, triceps, delta anterior and delta posterior) were calculated for both object conditions. There were no significant differences for hand position and arm configuration variances considering the two object conditions while muscle activity variances (for all muscles except deltoid posterior) increased significantly by executing the movement with heavier object. Since high muscle activity variances didn't result equally high increments in kinematic variances we suggest that the stabilization of the outer descriptors (kinematic properties) of the arm is resulted by the enhanced muscle cooperation through synergies when the motor task was performed with heavier object in the hand.
{"title":"The effect of load on variances of object replacing arm movements","authors":"R. Tibold, J. Laczko","doi":"10.1145/2093698.2093882","DOIUrl":"https://doi.org/10.1145/2093698.2093882","url":null,"abstract":"A three-dimensional (3D) dynamic upper limb model was developed to simulate muscle forces in slightly restricted point-to-point movements. Healthy subjects performed point-to-point movements repetitively with an object held in the hand. The object was either a very light (0.06kg) or a heavier one (2kg). Joint coordinates were recorded. Using joint coordinates, and muscle attachment sites taken from the literature, virtual muscle forces acted during the execution of the movement were calculated for 4 arm muscles. Variances of hand position trajectories, joint configuration trajectories and muscle activities (measured EMG and muscle forces of biceps, triceps, delta anterior and delta posterior) were calculated for both object conditions. There were no significant differences for hand position and arm configuration variances considering the two object conditions while muscle activity variances (for all muscles except deltoid posterior) increased significantly by executing the movement with heavier object. Since high muscle activity variances didn't result equally high increments in kinematic variances we suggest that the stabilization of the outer descriptors (kinematic properties) of the arm is resulted by the enhanced muscle cooperation through synergies when the motor task was performed with heavier object in the hand.","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87019366","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}
Metamaterials are complex materials with artificial structure which have special features. These features attract many scientists to use metamaterial structure in many research areas [1]. The metamaterials can enhance properties of microwave and optical passive and active components and also to exceed some limitation of devices used in technical practice [1]. Examples of scientific and technical fields which are concerned are electrical engineering, micro- and nanotechnology, microwave engineering, optics, optoelectronics, and semiconductor technologies, biomedical engineering [1]. In plasmonics, the interplay between propagating electromagnetic waves and free-electron oscillations in materials are exploited to create new components and applications [1]. On the other hand, metamaterials refer to artificial composites in which small artificial elements, through their collective interaction, create a desired and unexpected macroscopic response function that is not present in the constituent materials [1].
{"title":"Metamaterials applications in radiocommunication and biomedical engineering","authors":"D. Faktorova","doi":"10.1145/2093698.2093867","DOIUrl":"https://doi.org/10.1145/2093698.2093867","url":null,"abstract":"Metamaterials are complex materials with artificial structure which have special features. These features attract many scientists to use metamaterial structure in many research areas [1]. The metamaterials can enhance properties of microwave and optical passive and active components and also to exceed some limitation of devices used in technical practice [1]. Examples of scientific and technical fields which are concerned are electrical engineering, micro- and nanotechnology, microwave engineering, optics, optoelectronics, and semiconductor technologies, biomedical engineering [1]. In plasmonics, the interplay between propagating electromagnetic waves and free-electron oscillations in materials are exploited to create new components and applications [1]. On the other hand, metamaterials refer to artificial composites in which small artificial elements, through their collective interaction, create a desired and unexpected macroscopic response function that is not present in the constituent materials [1].","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91156766","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}
In multi-hop routing protocols within Wireless Ad-hoc Networks (MANET), all the nodes are assumed to be cooperative. However, this assumption might not hold especially when the nodes behave selfishly to reduce their own resource utilization or there exist intentional attackers. Therefore, how to enforce the cooperative behavior is an important issue in MANET. In this paper, we propose a Reputation-Aware Multi-hop routing Protocol (RAMP) to enforce node cooperation. We take advantage of congestion control from Transmission Control Protocol (TCP) to quantify the reputation/trust value of each node, which makes the selfish behaviors not attractive in MANET. To the best of our knowledge, we are the first to integrate the congestion control from TCP for the reputation-based system design. In addition, the respective simulation in NS2 shows RAMP could achieve 10--15% less packet loss than the existing reputation-based scheme such as CONFIDANT and RAMP could outperform CONFIDANT by up to 20% in goodput with the presence of the compromised/selfish nodes.
{"title":"RAMP: a reputation-aware multi-hop routing protocol in wireless ad-hoc networks","authors":"Hailun Tan","doi":"10.1145/2093698.2093758","DOIUrl":"https://doi.org/10.1145/2093698.2093758","url":null,"abstract":"In multi-hop routing protocols within Wireless Ad-hoc Networks (MANET), all the nodes are assumed to be cooperative. However, this assumption might not hold especially when the nodes behave selfishly to reduce their own resource utilization or there exist intentional attackers. Therefore, how to enforce the cooperative behavior is an important issue in MANET. In this paper, we propose a Reputation-Aware Multi-hop routing Protocol (RAMP) to enforce node cooperation. We take advantage of congestion control from Transmission Control Protocol (TCP) to quantify the reputation/trust value of each node, which makes the selfish behaviors not attractive in MANET. To the best of our knowledge, we are the first to integrate the congestion control from TCP for the reputation-based system design. In addition, the respective simulation in NS2 shows RAMP could achieve 10--15% less packet loss than the existing reputation-based scheme such as CONFIDANT and RAMP could outperform CONFIDANT by up to 20% in goodput with the presence of the compromised/selfish nodes.","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86046553","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}
Recent progresses in the design of wearable RFID tag antennas stimulate the idea of passive body centric systems wherein the required power to drive the wearable tags is directly scavenged from the interrogation signal emitted by the reader unit. While active body-centric links have been extensively investigated, the feasibility of passive systems is still questionable due to the poor sensitivity of the tags and to the modest read distances. This paper describes an articulated measurement campaign with textile wearable low-profile tags in the UHF RFID band. It is demonstrated that both on-body and off-body links are feasible with a power budget fully compliant with the available technology. The experiments permits to identify the most efficient tag placements and to propose some quantitative and general guidelines useful to characterize and design this kind of new systems.
{"title":"Body-centric RFID systems","authors":"S. Manzari, C. Occhiuzzi, G. Marrocco","doi":"10.1145/2093698.2093799","DOIUrl":"https://doi.org/10.1145/2093698.2093799","url":null,"abstract":"Recent progresses in the design of wearable RFID tag antennas stimulate the idea of passive body centric systems wherein the required power to drive the wearable tags is directly scavenged from the interrogation signal emitted by the reader unit. While active body-centric links have been extensively investigated, the feasibility of passive systems is still questionable due to the poor sensitivity of the tags and to the modest read distances. This paper describes an articulated measurement campaign with textile wearable low-profile tags in the UHF RFID band. It is demonstrated that both on-body and off-body links are feasible with a power budget fully compliant with the available technology. The experiments permits to identify the most efficient tag placements and to propose some quantitative and general guidelines useful to characterize and design this kind of new systems.","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86049215","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}
M. Jofre, F. Steinlechner, G. Anzolin, J. Torres, M. Mitchell, V. Pruneri, M. Curty
We have developed optical sources for high bit rate Quantum Communications (QC) using active elements as well as passive schemes. These sources allow achieving 100 Mbps free space Quantum Key Distribution (QKD) with improved security and use components space qualifiable, the latter being an essential aspect for their deployment in space missions.
{"title":"Compact optical sources for quantum communications","authors":"M. Jofre, F. Steinlechner, G. Anzolin, J. Torres, M. Mitchell, V. Pruneri, M. Curty","doi":"10.1145/2093698.2093886","DOIUrl":"https://doi.org/10.1145/2093698.2093886","url":null,"abstract":"We have developed optical sources for high bit rate Quantum Communications (QC) using active elements as well as passive schemes. These sources allow achieving 100 Mbps free space Quantum Key Distribution (QKD) with improved security and use components space qualifiable, the latter being an essential aspect for their deployment in space missions.","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87109470","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}
J. Järvinen, Ronald Borra, J. Kulmala, H. Aronen, A. Korvenoja, E. Salli
In this article, we present a novel approach to create single subject fMRI (functional magnetic resonance imaging) activation maps by utilizing the group data of several subjects on the individual level. Classification of a voxel as either activated or non-activated is based on its z-value and classification in the neighborhood. We defined the neighborhood of a voxel to consist of corresponding and neighboring voxels in two subjects in addition to the neighbourhood voxels within the subject itself. Determination of the two neighboring subjects was based on kappa-statistics between single subject activation maps calculated without data from other subjects. This approach was taken using multi-subject contextual clustering. Both fully simulated and real subject null data with simulated activations were used. ROC (receiver operator characteristics) analysis showed increased classification accuracy of activated and non-activated voxels when using the described approach.
{"title":"A contextual analysis method for multi-subject fMRI data","authors":"J. Järvinen, Ronald Borra, J. Kulmala, H. Aronen, A. Korvenoja, E. Salli","doi":"10.1145/2093698.2093720","DOIUrl":"https://doi.org/10.1145/2093698.2093720","url":null,"abstract":"In this article, we present a novel approach to create single subject fMRI (functional magnetic resonance imaging) activation maps by utilizing the group data of several subjects on the individual level. Classification of a voxel as either activated or non-activated is based on its z-value and classification in the neighborhood. We defined the neighborhood of a voxel to consist of corresponding and neighboring voxels in two subjects in addition to the neighbourhood voxels within the subject itself. Determination of the two neighboring subjects was based on kappa-statistics between single subject activation maps calculated without data from other subjects. This approach was taken using multi-subject contextual clustering. Both fully simulated and real subject null data with simulated activations were used. ROC (receiver operator characteristics) analysis showed increased classification accuracy of activated and non-activated voxels when using the described approach.","PeriodicalId":91990,"journal":{"name":"... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85744396","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}
... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies
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