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  Subjects -> ENGINEERING (Total: 2358 journals)
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    - ENGINEERING (1240 journals)
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ENGINEERING (1240 journals)                  1 2 3 4 5 6 7 | Last

Showing 1 - 200 of 1205 Journals sorted alphabetically
3 Biotech     Open Access   (Followers: 8)
3D Research     Hybrid Journal   (Followers: 20)
AAPG Bulletin     Hybrid Journal   (Followers: 8)
AASRI Procedia     Open Access   (Followers: 14)
Abstract and Applied Analysis     Open Access   (Followers: 3)
Aceh International Journal of Science and Technology     Open Access   (Followers: 2)
ACS Nano     Full-text available via subscription   (Followers: 266)
Acta Geotechnica     Hybrid Journal   (Followers: 7)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 6)
Acta Polytechnica : Journal of Advanced Engineering     Open Access   (Followers: 3)
Acta Scientiarum. Technology     Open Access   (Followers: 3)
Acta Universitatis Cibiniensis. Technical Series     Open Access  
Active and Passive Electronic Components     Open Access   (Followers: 7)
Adaptive Behavior     Hybrid Journal   (Followers: 11)
Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi     Open Access  
Adsorption     Hybrid Journal   (Followers: 4)
Advanced Engineering Forum     Full-text available via subscription   (Followers: 7)
Advanced Science     Open Access   (Followers: 5)
Advanced Science Focus     Free   (Followers: 5)
Advanced Science Letters     Full-text available via subscription   (Followers: 9)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 7)
Advanced Synthesis & Catalysis     Hybrid Journal   (Followers: 18)
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Advances in Complex Systems     Hybrid Journal   (Followers: 6)
Advances in Engineering Software     Hybrid Journal   (Followers: 27)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 15)
Advances in Fuzzy Systems     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 13)
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Advances in OptoElectronics     Open Access   (Followers: 5)
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Advances in Polymer Science     Hybrid Journal   (Followers: 43)
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Advances in Remote Sensing     Open Access   (Followers: 43)
Advances in Science and Research (ASR)     Open Access   (Followers: 4)
Aerobiologia     Hybrid Journal   (Followers: 2)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 6)
AIChE Journal     Hybrid Journal   (Followers: 35)
Ain Shams Engineering Journal     Open Access   (Followers: 5)
Akademik Platform Mühendislik ve Fen Bilimleri Dergisi     Open Access   (Followers: 1)
Alexandria Engineering Journal     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 26)
American Journal of Engineering and Applied Sciences     Open Access   (Followers: 10)
American Journal of Engineering Education     Open Access   (Followers: 9)
American Journal of Environmental Engineering     Open Access   (Followers: 16)
American Journal of Industrial and Business Management     Open Access   (Followers: 23)
Analele Universitatii Ovidius Constanta - Seria Chimie     Open Access  
Annals of Combinatorics     Hybrid Journal   (Followers: 3)
Annals of Pure and Applied Logic     Open Access   (Followers: 2)
Annals of Regional Science     Hybrid Journal   (Followers: 7)
Annals of Science     Hybrid Journal   (Followers: 7)
Antarctic Science     Hybrid Journal   (Followers: 1)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applicable Analysis: An International Journal     Hybrid Journal   (Followers: 1)
Applied Catalysis A: General     Hybrid Journal   (Followers: 6)
Applied Catalysis B: Environmental     Hybrid Journal   (Followers: 18)
Applied Clay Science     Hybrid Journal   (Followers: 5)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 11)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4)
Applied Nanoscience     Open Access   (Followers: 8)
Applied Network Science     Open Access   (Followers: 3)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Physics Research     Open Access   (Followers: 5)
Applied Sciences     Open Access   (Followers: 3)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4)
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 5)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5)
Archives of Foundry Engineering     Open Access  
Archives of Thermodynamics     Open Access   (Followers: 8)
Arkiv för Matematik     Hybrid Journal   (Followers: 1)
ASEE Prism     Full-text available via subscription   (Followers: 3)
Asia-Pacific Journal of Science and Technology     Open Access  
Asian Engineering Review     Open Access  
Asian Journal of Applied Science and Engineering     Open Access   (Followers: 1)
Asian Journal of Applied Sciences     Open Access   (Followers: 2)
Asian Journal of Biotechnology     Open Access   (Followers: 8)
Asian Journal of Control     Hybrid Journal  
Asian Journal of Current Engineering & Maths     Open Access  
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 8)
Assembly Automation     Hybrid Journal   (Followers: 2)
at - Automatisierungstechnik     Hybrid Journal   (Followers: 1)
ATZagenda     Hybrid Journal  
ATZextra worldwide     Hybrid Journal  
Australasian Physical & Engineering Sciences in Medicine     Hybrid Journal   (Followers: 1)
Australian Journal of Multi-Disciplinary Engineering     Full-text available via subscription   (Followers: 2)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 9)
Avances en Ciencias e Ingeniería     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 1)
Bangladesh Journal of Scientific and Industrial Research     Open Access  
Basin Research     Hybrid Journal   (Followers: 5)
Batteries     Open Access   (Followers: 6)
Bautechnik     Hybrid Journal   (Followers: 1)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 26)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 4)
BER : Manufacturing Survey : Full Survey     Full-text available via subscription   (Followers: 1)
BER : Motor Trade Survey     Full-text available via subscription  
BER : Retail Sector Survey     Full-text available via subscription   (Followers: 1)
BER : Retail Survey : Full Survey     Full-text available via subscription   (Followers: 1)
BER : Survey of Business Conditions in Manufacturing : An Executive Summary     Full-text available via subscription   (Followers: 2)
BER : Survey of Business Conditions in Retail : An Executive Summary     Full-text available via subscription   (Followers: 3)
Bhakti Persada : Jurnal Aplikasi IPTEKS     Open Access  
Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika (BVAAP)     Open Access   (Followers: 1)
Biofuels Engineering     Open Access   (Followers: 1)
Biointerphases     Open Access   (Followers: 1)
Biomaterials Science     Full-text available via subscription   (Followers: 10)
Biomedical Engineering     Hybrid Journal   (Followers: 15)
Biomedical Engineering and Computational Biology     Open Access   (Followers: 13)
Biomedical Engineering Letters     Hybrid Journal   (Followers: 5)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 19)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 35)
Biomedical Engineering: Applications, Basis and Communications     Hybrid Journal   (Followers: 5)
Biomedical Microdevices     Hybrid Journal   (Followers: 9)
Biomedical Science and Engineering     Open Access   (Followers: 4)
Biomedizinische Technik - Biomedical Engineering     Hybrid Journal  
Biomicrofluidics     Open Access   (Followers: 4)
BioNanoMaterials     Hybrid Journal   (Followers: 2)
Biotechnology Progress     Hybrid Journal   (Followers: 39)
Boletin Cientifico Tecnico INIMET     Open Access  
Botswana Journal of Technology     Full-text available via subscription   (Followers: 1)
Boundary Value Problems     Open Access   (Followers: 1)
Brazilian Journal of Science and Technology     Open Access   (Followers: 2)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 10)
Bulletin of Canadian Petroleum Geology     Full-text available via subscription   (Followers: 13)
Bulletin of Engineering Geology and the Environment     Hybrid Journal   (Followers: 14)
Bulletin of the Crimean Astrophysical Observatory     Hybrid Journal  
Cahiers, Droit, Sciences et Technologies     Open Access  
Calphad     Hybrid Journal  
Canadian Geotechnical Journal     Hybrid Journal   (Followers: 31)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 42)
Case Studies in Engineering Failure Analysis     Open Access   (Followers: 6)
Case Studies in Thermal Engineering     Open Access   (Followers: 5)
Catalysis Communications     Hybrid Journal   (Followers: 6)
Catalysis Letters     Hybrid Journal   (Followers: 2)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 7)
Catalysis Science and Technology     Free   (Followers: 8)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysis Today     Hybrid Journal   (Followers: 7)
CEAS Space Journal     Hybrid Journal   (Followers: 2)
Cellular and Molecular Neurobiology     Hybrid Journal   (Followers: 3)
Central European Journal of Engineering     Hybrid Journal  
CFD Letters     Open Access   (Followers: 6)
Chaos : An Interdisciplinary Journal of Nonlinear Science     Hybrid Journal   (Followers: 2)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Engineering     Open Access   (Followers: 2)
Chinese Science Bulletin     Open Access   (Followers: 1)
Ciencia e Ingenieria Neogranadina     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencias Holguin     Open Access   (Followers: 2)
CienciaUAT     Open Access   (Followers: 1)
Cientifica     Open Access  
CIRP Annals - Manufacturing Technology     Full-text available via subscription   (Followers: 11)
CIRP Journal of Manufacturing Science and Technology     Full-text available via subscription   (Followers: 13)
City, Culture and Society     Hybrid Journal   (Followers: 20)
Clay Minerals     Full-text available via subscription   (Followers: 10)
Clean Air Journal     Full-text available via subscription   (Followers: 1)
Coal Science and Technology     Full-text available via subscription   (Followers: 3)
Coastal Engineering     Hybrid Journal   (Followers: 11)
Coastal Engineering Journal     Hybrid Journal   (Followers: 5)
Coatings     Open Access   (Followers: 4)
Cogent Engineering     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 4)
Color Research & Application     Hybrid Journal   (Followers: 2)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 14)
Combustion, Explosion, and Shock Waves     Hybrid Journal   (Followers: 13)
Communications Engineer     Hybrid Journal   (Followers: 1)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 2)
Components, Packaging and Manufacturing Technology, IEEE Transactions on     Hybrid Journal   (Followers: 28)
Composite Interfaces     Hybrid Journal   (Followers: 7)
Composite Structures     Hybrid Journal   (Followers: 273)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 210)
Composites Part B : Engineering     Hybrid Journal   (Followers: 245)
Composites Science and Technology     Hybrid Journal   (Followers: 183)
Comptes Rendus Mécanique     Full-text available via subscription   (Followers: 2)
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Computational Geosciences     Hybrid Journal   (Followers: 15)
Computational Optimization and Applications     Hybrid Journal   (Followers: 7)
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Computer Applications in Engineering Education     Hybrid Journal   (Followers: 8)
Computer Science and Engineering     Open Access   (Followers: 19)
Computers & Geosciences     Hybrid Journal   (Followers: 30)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 8)
Computers and Electronics in Agriculture     Hybrid Journal   (Followers: 5)
Computers and Geotechnics     Hybrid Journal   (Followers: 11)
Computing and Visualization in Science     Hybrid Journal   (Followers: 6)
Computing in Science & Engineering     Full-text available via subscription   (Followers: 33)
Conciencia Tecnologica     Open Access  
Concurrent Engineering     Hybrid Journal   (Followers: 3)
Continuum Mechanics and Thermodynamics     Hybrid Journal   (Followers: 8)
Control and Dynamic Systems     Full-text available via subscription   (Followers: 9)
Control Engineering Practice     Hybrid Journal   (Followers: 43)
Control Theory and Informatics     Open Access   (Followers: 8)
Corrosion Science     Hybrid Journal   (Followers: 25)

        1 2 3 4 5 6 7 | Last

Journal Cover Biomedical Engineering: Applications, Basis and Communications
  [SJR: 0.165]   [H-I: 15]   [5 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1016-2372 - ISSN (Online) 1793-7132
   Published by World Scientific Homepage  [117 journals]
  • PROTOTYPE OF A 2.5D PERIAPICAL RADIOGRAPHY SYSTEM USING AN INTRAORAL
           COMPUTED TOMOSYNTHESIS APPROACH
    • Authors: Che-Wei Liao, Chia-Jui Hsieh, Heng-Li Huang, Lih-Jyh Fuh, Chih-Wei Kuo, Yu-bo Lin, Jyh-Cheng Chen, Jui-Ting Hsu
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Volume 30, Issue 01, February 2018.
      Digital periapical radiography is widely used in clinical dentistry because the technique is relatively simple and inexpensive. However, the main drawback of periapical radiography is that it represents a three-dimensional object in a two-dimensional film due to its inherent projection technique. The objective of this study was to develop a prototype intraoral computed tomosynthesis system, which can provide quasi-three-dimensional (so-called 2.5D) images. We developed a prototype intraoral computed tomosynthesis machine. Regular digital periapical radiography, computed tomosynthesis scanning, and computed tomography scanning of a human central incisor were performed. Then, reconstruction images obtained using computed tomosynthesis and computed tomography approaches were quantitatively evaluated using the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR). From the experimental results, compared with periapical radiographic images, reconstruction images obtained using the computed tomosynthesis approach revealed detailed microstructures in different depth sections. In addition, the SNR and CNR of reconstruction images obtained using the computed tomography approach was better than those of the images obtained using the computed tomosynthesis approach. However, the differences could not be clearly identified by the naked eye. The preliminary experimental results indicate that an intraoral computed tomosynthesis system may be useful for clinical dental diagnosis.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-23T06:44:13Z
      DOI: 10.4015/S1016237218500047
       
  • EDITORIAL
    • Authors: Hsin-Yi Kathy Cheng, Chih-Hsiu Cheng
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Volume 30, Issue 01, February 2018.

      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-23T06:44:08Z
      DOI: 10.4015/S1016237218020015
       
  • BIOMECHANICAL EVALUATION OF LOW-MODULUS BONE CEMENT FOR ENHANCING
           APPLICABILITY IN VERTEBROPLASTY — AN EXPERIMENTAL STUDY IN PORCINE MODEL
           
    • Authors: Mu-Yi Liu, Po-Liang Lai, Ching-Lung Tai
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Volume 30, Issue 01, February 2018.
      Polymethylmethacrylate (PMMA) bone cement has been widely used in vertebroplasty to treat osteoporotic vertebral compression fracture. However, the high compression stiffness of PMMA is suspected to induce adjacent vertebral fracture following vertebroplasty. In the current study, modified low-modulus cement was prepared by combining PMMA with castor oil to solve this problem. The percentage of height recovery and compression stiffness of vertebral bodies was compared after injection of standard PMMA or low-modulus cement. This study aims to investigate whether low-modulus cement is as effective as standard PMMA for storing the initial vertebral height; while lowering the compression stiffness in treatment of osteoporotic vertebral compression fractures. A total of 20 fresh porcine lumbar vertebrae were assigned into two groups (10 per group): standard and low-modulus. All specimens received a four-week decalcification to mimic human osteoporotic vertebrae. The standard and low-modulus groups received a simulated compression fracture followed by treatment of standard and low-modulus cement augmentation, respectively. The low-modulus cement was prepared by combining standard PMMA with 15% weight fractions of castor oil. For all the 20 specimens, vertebral compression fracture was created by reducing the vertebral height of 25% using a material testing machine. The compression stiffness determined from the creation of compression fracture was defined as the intact group (20 specimens). The fractured vertebrae were then treated with standard and low-modulus cement augmentation. The vertebral height was measured pre- and post-treatment, and the percentage of vertebral height recovery was compared between two cementing groups. Following cement augmentation, axial compression test was conducted to compare compression stiffness among three groups. The results indicated that there is no significant difference in percentage of vertebral height between standard (83.42[math][math][math]11.60%) and low-modulus (88.50[math][math][math]6.15%) groups ([math]). Moreover, the compression stiffnesses were 1166.49[math][math][math]392.91 N/mm, 1795.85[math][math][math]247.45[math]N/mm and 1362.57[math][math][math]236.92[math]N/mm for intact, standard and low-modulus groups, respectively. There is significant difference among three groups ([math]). We concluded that the modified low-modulus cement is as effective as standard PMMA for storing the initial vertebral height while lowering the compression stiffness in treatment of osteoporotic vertebral compression fractures. These reduce the risks of adjacent vertebral body fracture following vertebroplasty.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-23T06:44:04Z
      DOI: 10.4015/S1016237218500023
       
  • THE EFFECT OF LABORATORY-DEVELOPED VIDEO GAMES ON BALANCE PERFORMANCE IN
           CHILDREN WITH DEVELOPMENTAL COORDINATION DISORDER
    • Authors: Ya-Ju Ju, Yi-Chun Du, Ling-Yi Lin, Chou-Ru Hou, Pei-Yi Lin, Rong-Ju Cherng
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Volume 30, Issue 01, February 2018.
      Developmental coordination disorder (DCD) refers to the motor skill difficulty without any explainable medical conditions. The prevalence rate of DCD is estimated to be 5–12% in Taiwan. Balance deficit is one of the main characteristics of children with DCD. The aim of this study was to examine the effect of a self-developed balance training program on the balance performance in children with DCD. Twenty four children aged 5–10 years old with DCD and 12 age-matched typically developing (TD) children participated in the study. Children with DCD were randomly divided between an experimental group (DCD-exp) who received treatment with the iBalance training program and the control group (DCD-con) who did not received treatment. TD children also did not receive treatment as a comparison group. All the children were tested with the movement assessment battery for children-2nd edition (MABC-2) and iBalance assessment system before and after the intervention period. A significant improvement of the MABC-2 balance component score, time duration of one-leg standing and the number of success trials with dynamic balance tasks were noted in the children of DCD-exp but not in the children of DCD-con and TD. The results suggest that the iBalance training program is effective for a short time treatment effect for children with DCD. The long term effect and transfer effect need to be examined.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-23T06:43:59Z
      DOI: 10.4015/S1016237218500059
       
  • THE EFFECT OF MOTION CONTROL SHOES ON REDUCING THE FORCE AND PRESSURE IN
           INDIVIDUALS WITH PRONATED FEET DURING WALKING
    • Authors: Cheng-Chieh Lin, Ming-Tung Huang, Cheng-Feng Lin
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Volume 30, Issue 01, February 2018.
      Excessive foot pronation may alter the biomechanics of lower limbs during locomotion and is associated with a number of lower limb injuries. The motion control shoes have been found to be effective in reducing the foot pronation and peak pressure during running. However, differences in biomechanics exist between running and walking. The purpose of the present study is to investigate whether the force and pressure may be reduced while walking with motion control shoes. Thirty-five participants with unilateral pronated foot were recruited, and the motion control shoes with the possibility of adjusting its midsole hardness were prescribed. The participants walked with three shoes conditions: own shoes, motion control shoes with and without adjustments while the force and pressure were recorded via the in-shoe dynamic pressure measuring system. Better stability and decreased pain sensation were reported while walking with the motion control shoes compared with participants’ own shoes. Similarly, the decrease of both peak force and pressure was also observed while walking with motion control shoes. However, the adjustment of the midsole hardness did not provide additional effect in either force or peak pressure. Consistent to the previous findings in running, our findings suggest that the motion control shoes are effective in reducing force and pressure during walking. Future studies are needed to investigate the short- and long-term effect of the motion control shoes during walking.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-23T06:43:51Z
      DOI: 10.4015/S1016237218500138
       
  • INTRA- AND INTER-RATER RELIABILITY OF IN VIVO THREE-DIMENSIONAL
           MEASUREMENT OF THE SCAPULAR POSES USING A MARKER-BASED LOCATOR
    • Authors: Mei-Ying Kuo, Shih-Wun Hong, Jia-Da Li, Tung-Wu Lu, Horng-Chaung Hsu
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Volume 30, Issue 01, February 2018.
      The accurate measurement of three-dimensional scapular kinematics is essential for a better understanding of the mechanical interactions between the scapular and the other segments of the shoulder complex. The purposes of the study were (1) to develop a marker-based scapular locator for measuring scapular poses and (2) to determine the intra-rater and inter-rater reliability of the locator in terms of intra-class correlation (ICC). About 22 healthy volunteers without shoulder pathologies participated in the current study. Each subject was tested separately by two examiners using the marker-based scapular locator while performing static shoulder flexion at 20[math], 40[math], 60[math], 80[math], 100[math] and 120[math] in the sagittal plane. The reliability models, ICC[math] and ICC[math], were used to analyze the intra-rater and inter-rater reliability for scapular rotation and translation. Good to excellent intra-user reliability for both examiners was found for the scapular rotations (range: 0.81–0.97) and displacements (range: 0.88–0.99) for different shoulder flexion conditions. Excellent inter-rater reliability was found for scapular rotations (range: 0.92–0.99) and translations (range: 0.92–0.99) for all conditions. The results showed the high intra- and inter-examiner reliabilities for scapular rotations and translation using the marker-based scapular locator. The developed locator will be helpful for future clinical research of the shoulder complex.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-23T06:43:49Z
      DOI: 10.4015/S1016237218500011
       
  • THE APPLICATIONS OF SMART MOBILE DEVICE FOR DETECTING BALANCE DYSFUNCTION
           IN INDIVIDUALS WITH DOWN SYNDROME
    • Authors: Tsung-Hsun Hsieh, Chih-Wei Peng, Kai-Yun Chen, Ying-Zu Huang, Yi-Huang Lin, Wei-Zong Zhong, Jen-I Liang, Jingpu Zhao, Chun-Yu Cheng, Ya-Ju Chang, Chih-Hsiu Cheng, Yu-Fen Chuang
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Volume 30, Issue 01, February 2018.
      Falls are a major health concern leading cause of fatal and non-fatal injuries for neurological disorders. Balance dysfunction is one of the common factors to determine fall risk in neurological patients. Preventative measures may help to reduce the incidence and severity of falls for detecting balance function and fall risk factors. However, the objective measures for balance require expensive equipment with the assessment of clinical expertise. A main gap remains in the evaluation method to objectively characterize the balance functions in individuals with high risk of falling. With the development of wearable and mobile devices, recent advances in smart mobile devices may provide a potential opportunity to manage the gap in the detailed quantification of balance impairments. The purpose of this study is to identify whether the biomechanical data measured by the mobile device is reliable to characterize the posture stability in various balance test conditions. A total of 39 children with Down syndrome completed four balance-testing tasks under altered base of support and vision. Simultaneous biomechanical measurements were gathered from the iPod and force plate analysis system during functional balance testing. The force plate and mobile system provided similar patterns of stability across groups. Correlation ([math] between two systems for path length, 95% ellipse area, peak-to-peak, standard deviation and mean ranged from 0.60 to 0.99. We expect that the smart mobile device can provide reliable and accurate information to quantify the postural stability in individuals with elderly people or neurological disorders. The objectivity, portability and easy use of such mobile device make it ideal to apply in clinical environments for detecting balance functions and reducing the risk of falls in Down syndrome or other neurological patients.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-23T06:43:49Z
      DOI: 10.4015/S1016237218500072
       
  • IMMEDIATE EFFECT OF DIFFERENT FOREFOOT WEDGES ON STANDING STABILITY IN
           YOUNG ADULTS
    • Authors: Chu-Fen Chang, Hui-Ji Fan, Hung-Bin Chen, Houu-Wooi Lim, Hsiao-Yuan Lee, Kwan-Hwa Lin
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Volume 30, Issue 01, February 2018.
      The aim of this study was to investigate the immediate effect of wearing the functional insoles with different slopes of forefoot wedges on postural stability in young adults during quiet stance. In this study, the functional insole was composed of a forefoot wedge and a medial arch support. Twelve healthy young adults (six males and six females) participated. Each subject wore sneakers with and without functional insole and stood as still as possible on a force plate with feet together, arms by side and head facing ahead for 60[math]s, while eyes open and eyes closed, respectively. The functional insole was applied in the random sequence of no insole, wearing insole with a medial arch and a four-degree forefoot wedge, as well as wearing insole with a medial arch and an eight-degree forefoot wedge. The sway areas as well as the maximal excursions of the center of pressure (COP) in anterior–posterior (AP) and medial–lateral (ML) directions were used to evaluate the static postural stability. During stance with feet together and eyes closed, the sway area and maximal excursion of the COP in the AP direction were significantly decreased when wearing an eight-degree forefoot wedge functional insole. Since the reduced displacements of the COP indicated better postural control, it was suggested that the functional insole with an eight-degree forefoot wedge and a medial arch support might be beneficial to improve the postural stability in patients with impaired balance control, especially for whom having high risk of forward falls.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-23T06:43:49Z
      DOI: 10.4015/S101623721850014X
       
  • EVALUATION OF VARIOUS DEVICE DESIGNS FOR POSTERIOR LUMBAR INTERBODY FUSION
           SURGERY USING A T10–S1 MULTILEVEL SPINE MODEL
    • Authors: Minh-Thai Le, Ching-Chi Hsu, Kao-Shang Shih
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Volume 30, Issue 01, February 2018.
      A spinal fusion surgery has been the gold standard treatment for treating lumbar degenerative disc disease. Many clinical studies have demonstrated that adjacent segment degeneration was observed in patients over time. Different types of stabilization systems have been investigated using numerical approaches. However, numerical models developed in the past were simplified to reduce computational time. Additionally, it is quite difficult to compare different stabilization systems in clinical application due to variation in bone anatomy and density. The aim of this study is to evaluate and compare the biomechanical performances of different stabilization systems using a more realistic spine model. In this study, three-dimensional finite element models of the intact, injured and treated T10–S1 multilevel spines are developed. The intersegmental rotation, the maximum disc stress and the maximum implant stress are calculated. The results showed that the pedicle screw–rod system can provide better fixation stability and lower implant stress. The Coflex system (CFS) has an advantage on reducing the risk of adjacent segment degeneration. This study could provide useful information to surgeons understanding the effects of different stabilization systems on the biomechanical performances for the posterior lumbar interbody fusion surgery.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-23T06:43:42Z
      DOI: 10.4015/S1016237218500035
       
  • CLASSIFICATION OF SCHIZOPHRENIA USING SVM VIA fNIRS
    • Authors: Mehrdad Dadgostar, Seyed Kamaledin Setarehdan, Sohrab Shahzadi, Ata Akin
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Ahead of Print.
      In the present study, a classification of functional near-infrared spectroscopy (fNIRS) based on support vector machine (SVM) is presented. It is a non-invasive method monitoring human brain function by evaluating the concentration variation of oxy-hemoglobin and deoxy-hemoglobin. fNIRS is a functional optical imaging technology that measures the neural activities and hemodynamic responses in brain. The data were gathered from 11 healthy volunteers and 16 schizophrenia of the same average age by a 16-channel fNIRS (NIROXCOPE 301 system developed at the Neuro-Optical Imaging Laboratory, continuous-wave dual wavelength). Schizophrenia is a mental disorder that is characterized by mental processing collapse and weak emotional responses. This mental disorder is usually accompanied by a serious disturbance in social and occupational activities. The signals were initially preprocessed by DWT to remove any systemic physiological impediment. A preliminary examination by the genetic algorithm (GA) suggested that some channels of the recreated fNIRS signals required further investigation. The energy of these recreated channel signals was computed and utilized for signal arrangement. We used SVM-based classifier to determine the cases of schizophrenia. The result of six channels is higher than 16 channels. The results demonstrated a classification precision of about 87% in the discovery of schizophrenia in the healthy subjects.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-03-13T02:29:53Z
      DOI: 10.4015/S1016237218500084
       
  • WOUND HEALING ACTIVITY OF SHEEP’S BLADDER EXTRACELLULAR MATRIX IN
           DIABETIC RATS
    • Authors: Bahare Zihayat, Arash Khodadadi, Molook Torabi, Mohammad Mehdipour, Mohsen Basiri, Majid Asadi-Shekarri
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Ahead of Print.
      Diabetic ulcers (DUs) are a chronic, non-healing diabetes complication that leads to high hospital expenses and, in extreme cases, to amputation. Peripheral vascular diseases, diabetic neuropathy, abnormal cellular and cytokine activity are among the major factors that hinder diabetic wound healing. DUs represent an important challenge in the development of new and efficient wound dressings. The extracellular matrix (ECM) has been effectively used as a scaffold for constructive remodeling of multiple tissues in animal and human. Sheep’s urinary bladder matrix was evaluated for its wound healing activity in streptozotocin-induced diabetic rats using excision model. In this experiment, 48 male Sprague dawley rats weighing 220–250[math]g were divided into four equal groups of control, vaseline, [math] (10[math]mg/wound) and [math] (50[math]mg/wound). Diabetes was induced by intraperitoneal injection of streptozotocin (45[math]mg/kg B.W) solved in 0.05[math]M citrate buffer. Seven days after confirming diabetes statue, skin wounds were created on the back of each rat. Rate of wound healing and histological assay using hematoxylin and Eosin staining (H&E) were used for evaluation of the wound healing in different groups. ECM treated animals exhibited significant improvement in both wound area and rate of wound healing when compared to controls ([math]). The ECM treated wounds were found to epithelize faster as compared to controls. The sheep’s ECM promotes significant wound healing in male diabetic rats and further studies on this activity in animal models and humans are suggested.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-03-13T02:29:52Z
      DOI: 10.4015/S1016237218500151
       
  • ACQUISITION AND CHARACTERIZATION OF BOWEL SOUNDS USING LabVIEW SOFTWARE
    • Authors: Oinam Robita Chanu, V. Karthik Raj
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Ahead of Print.
      Bowel sounds (BSs) are defined as the sounds when contractions of the lower intestines propel forward. It is simple, but empirical and too subjective. Auscultation is the traditional technique for determining gastrointestinal functioning. The most physicians and nurses carry out a cursory listen for BS resulting in misinterpretation. The aim and objective of this project are to design a low-cost prototype of an electronic stethoscope to acquire the BSs and analyzing its characteristics using LabVIEW software. The developed prototype is interfaced with the software, and the BSs are recorded from the epigastric region and the umbilical region. The characteristics of recorded BSs are analyzed in the LabVIEW software with the available tool like signal analysis and sound analysis. For this study, a total number of 17 subjects are included. Around 1[math]min BS recordings are performed on 12 healthy subjects and 5 abnormal subjects. The result showed that the BSs are recorded from the designed prototype. The frequencies of detected BS vary for each person in different areas of the abdomen. Based on the frequency of detected BS for a particular subject, the classification of BS is made into hypoactive, hyperactive and absent (no sounds).
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-28T01:07:43Z
      DOI: 10.4015/S1016237218500060
       
  • IDENTIFYING DEEP BREATH EFFECT ON CARDIOVASCULAR SIGNALS USING CONDITIONAL
           ENTROPY: AN INFORMATION DOMAIN APPROACH
    • Authors: M. C. Helen Mary, Dilbag Singh, K. K. Deepak
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Ahead of Print.
      This quantitative study identifies the coupling changes occurring among cardiac (RR), vascular (SBP) and respiratory (RESP) signals during deep breathing. The deep breathing measures the dysfunction of the parasympathetic autonomic nervous system. The traditional methods based on cross-correlation and coherence analysis lack to measure nonlinear structures and unpredictability of physiological subsystems. Therefore, information domain coupling method based on conditional entropy is proposed to detect the coupling changes. Thirty healthy volunteers were examined for 5[math]min at normal breathing and 5[math]min during deep breathing (6[math]cycles/min). The reduction in respiration rate detects a significant increase in information flow from RESP to RR, RESP to SBP and SBP to RR. The increased interaction from RESP to RR and RESP to SBP at reduced respiration rate indicates the enhancement of respiratory sinus arrhythmia that results in the activation of the parasympathetic nervous system. Also, the balanced cardiovascular interaction observed on normal breathing from RR to SBP disappears, but interaction occurring in baroreflex direction (SBP to RR) increases that helps in the reduction of blood pressure during deep breathing. This detected direction of information flow helps in identifying the coupling changes occurring during parasympathetic nerve activity.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-28T01:07:42Z
      DOI: 10.4015/S1016237218500126
       
  • ASSESSMENT OF CARDIAC HEART FAILURE AND CARDIAC ARTERY DISEASE BY THE
           HIGHER ORDER SPECTRA
    • Authors: Ram Sewak Singh, Barjinder Singh Saini, Ramesh Kumar Sunkaria
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Ahead of Print.
      Cardiac diseases are major reason of death in the world populace and the numeral of cases is upsurging every year. Due to cardiac artery disease (CAD), the strength of heart muscles becomes weak and heart pumping is disturbed which may eventually lead to abnormal heart beat and heart failure. Therefore, the beginning stage detection of CAD and cardiac heart failure (CHF) are of prime importance. In this work, we have used a non-invasive diagnosis method as higher order spectra (HOS) for assessment of cardiac diseases. The method indicates whether or not a cardiac heart disease is present, by assessing the cardiac health of subjects using extracted features from heart rate variability (HRV) signals. This assessment is based on 10 spectra nonlinear features. These features were extracted from HRV signals by using the HOS method. For this study, the R-R interval data (i.e. HRV signals) were taken from the standard database of cardiac heart failure (CHF), CAD patients, healthy young (YNG) and Self recorded of healthy young (SELF_YNG) subjects. Statistical assessments were performed on the group of database sets as YNG-CAD, YNG-CHF, SELF_YNG-CAD and Self_YNG-CHF subjects. A Wilcoxon rank sum test ([math]-value) was used to statistically compare the features extracted by HOS for group of data sets. It indicates whether or not the same features of individual classes of HRV data sets are dissimilar. The results depicted that the all features are very significant ([math]) except the phase entropy (PHE) feature which is not significant for CAD-CHF, SELF_YNG-CAD and SELF_YNG-CHF group of subjects. While in the case of YNG-CAD group of subjects, features like first-order spectral moment of amplitudes of diagonal elements (H3), PHE and logarithmic amplitudes of diagonal elements (H2) are significant ([math]) and excluding these features, the remaining features are very significant except MM and H1 which are not significant. The results also depicted that the mean value of sum of logarithmic amplitude (H1), H2, normalized entropy (P1), normalized squared entropy (P2) and PHE features of healthy YNG subjects are having higher values than that of CAD and CHF patients. While weighted center of bi-spectrum (WCOB2) and FLAT spectrum features are lower than CAD and CHF patients compared to YNG subjects. In case of CAD and CHF patients, all the features of CAD patients are having higher values compared to CHF except P1, P2 and WCOB1.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-28T01:07:41Z
      DOI: 10.4015/S1016237218500163
       
  • EXPERIMENTAL STUDY ON THE EFFECT OF DRILL QUALITY ON BONE TEMPERATURE IN
           DRILLING
    • Authors: Khurshid Alam, Syed Husain Imran, Abdullah Al-Shabibi, Mojtaba Ghodsi, Vadim Silberschmidth
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Ahead of Print.
      Bone drilling is widely performed in orthopedics for fixation and reconstruction of bone. In bone drilling, a hard metallic drill penetrates into the bone tissue which may cause trauma. Shear deformation of the bone material and friction between the drill and bone may induce elevated temperature in bone tissue. Temperature above a certain level may seriously harm the tissue, leading to several postoperative complications. The purpose of the current study is to measure and compare temperature in bone drilling using sharp and worn drill. Drilling tests were performed on cortical bone obtained from femoral shaft of a cow. A parametric study was conducted to quantify bone temperature using a range of drilling speeds and feed rates using drills having sharp and worn cutting edges with and without cooling environment. The temperature was measured using thermocouples, and wear of the cutting edges of the drill was measured using a scanning profilometer. Experimental results demonstrated lower temperature in bone using a sharp drill compared with a worn drill for similar drilling conditions. The bone temperature was found to rise with drill rotational speed, rate of penetration and size of the drill with and without cooling. Blunt drills were found more crucial for inducing thermal necrosis in bone.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-28T01:07:41Z
      DOI: 10.4015/S1016237218500187
       
  • NON-INVASIVE BLOOD GLUCOSE ANALYSIS BASED ON GALVANIC SKIN RESPONSE FOR
           DIABETIC PATIENTS
    • Authors: U. Snekhalatha, T. Rajalakshmi, C. H. Vinitha Sri, G. Balachander, K. S. Shankar
      Abstract: Biomedical Engineering: Applications, Basis and Communications, Ahead of Print.
      Diabetes is a chronic disease due to the lack of production of hormone insulin by the beta cells in the islets of Langerhans. Many diabetic patients often draw a small amount of blood to measure the glucose level every day. This vital information is needed to control their daily food intake. One such method could cause infection and discomfort to the patient. Non-invasive glucose measurement techniques overcome these challenges to monitor blood glucose level continuously. The aim and objective of this study are as follows: (i) to correlate the skin resistance based on Galvanic skin response (GSR) and blood glucose level for diabetic and non-diabetic subject and (ii) to estimate the blood glucose value based on GSR voltage and resistance using stepwise linear regression model. About 50 diabetic and 50 non-diabetic subjects were included in this study. Blood glucose level is recorded using the minimally invasive device called accu-chek for all the subjects. GSR resistance and GSR voltage were recorded using the designed instrumentation setup. In diabetic subjects, the measured blood glucose level shows negative correlation with the GSR voltage ([math], [math]) and GSR resistance ([math], [math]). The estimated blood glucose level can be predicted with good sensitivity (94%) and accuracy (92%) using age and GSR voltage, or by the combination of age and GSR resistance in the evaluation of diabetic subjects.
      Citation: Biomedical Engineering: Applications, Basis and Communications
      PubDate: 2018-02-28T01:07:40Z
      DOI: 10.4015/S1016237218500096
       
 
 
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