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Applied Bionics and Biomechanics

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https://www.readbyqxmd.com/read/27843284/studying-maximum-plantar-stress-per-insole-design-using-foot-ct-scan-images-of-hyperelastic-soft-tissues
#1
Ali Sarikhani, Abbas Motalebizadeh, Sasan Asiaei, Babak Kamali Doost Azad
The insole shape and the resulting plantar stress distribution have a pivotal impact on overall health. In this paper, by Finite Element Method, maximum stress value and stress distribution of plantar were studied for different insoles designs, which are the flat surface and the custom-molded (conformal) surface. Moreover, insole thickness, heel's height, and different materials were used to minimize the maximum stress and achieve the most uniform stress distribution. The foot shape and its details used in this paper were imported from online CT-Scan images...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27840572/recent-advances-in-biomedical-applications
#2
EDITORIAL
Alberto Borboni, Tadeusz Mikołajczyk, Vera Murgul
No abstract text is available yet for this article.
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27799727/parallel-robot-for-lower-limb-rehabilitation-exercises
#3
Alireza Rastegarpanah, Mozafar Saadat, Alberto Borboni
The aim of this study is to investigate the capability of a 6-DoF parallel robot to perform various rehabilitation exercises. The foot trajectories of twenty healthy participants have been measured by a Vicon system during the performing of four different exercises. Based on the kinematics and dynamics of a parallel robot, a MATLAB program was developed in order to calculate the length of the actuators, the actuators' forces, workspace, and singularity locus of the robot during the performing of the exercises...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27752220/drag-reduction-and-performance-improvement-of-hydraulic-torque-converters-with-multiple-biological-characteristics
#4
Liu Chunbao, Li Li, Lei Yulong, Liu Changsuo, Zhang Yubo
Fish-like, dolphin-like, and bionic nonsmooth surfaces were employed in a hydraulic torque converter to achieve drag reduction and performance improvement, which were aimed at reducing profile loss, impacting loss and friction loss, respectively. YJSW335, a twin turbine torque converter, was bionically designed delicately. The biological characteristics consisted of fish-like blades in all four wheels, dolphin-like structure in the first turbine and the stator, and nonsmooth surfaces in the pump. The prediction performance of bionic YJSW335, obtained by computational fluid dynamics simulation, was improved compared with that of the original model, and then it could be proved that drag reduction had been achieved...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27721648/lower-limb-rehabilitation-using-patient-data
#5
Alireza Rastegarpanah, Mozafar Saadat
The aim of this study is to investigate the performance of a 6-DoF parallel robot in tracking the movement of the foot trajectory of a paretic leg during a single stride. The foot trajectories of nine patients with a paretic leg including both males and females have been measured and analysed by a Vicon system in a gait laboratory. Based on kinematic and dynamic analysis of a 6-DoF UPS parallel robot, an algorithm was developed in MATLAB to calculate the length of the actuators and their required forces during all trajectories...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27688703/analysis-of-peristaltic-motion-of-a-nanofluid-with-wall-shear-stress-microrotation-and-thermal-radiation-effects
#6
C Dhanapal, J Kamalakkannan, J Prakash, M Kothandapani
This paper analyzes the peristaltic flow of an incompressible micropolar nanofluid in a tapered asymmetric channel in the presence of thermal radiation and heat sources parameters. The rotation of the nanoparticles is incorporated in the flow model. The equations governing the nanofluid flow are modeled and exact solutions are managed under long wavelength and flow Reynolds number and long wavelength approximations. Explicit expressions of axial velocity, stream function, microrotation, nanoparticle temperature, and concentration have been derived...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27597807/the-analysis-of-biomechanical-properties-of-proximal-femur-after-implant-removal
#7
Jae Hyuk Yang, Tae Gon Jung, Arjun Rupanagudi Honnurappa, Jae Min Cha, Chang Hwa Ham, Tae Yoon Kim, Seung Woo Suh
Introduction. To compare the biomechanical stability of the femur following the removal of proximal femoral nail antirotation (PFNA-II) and dynamic hip screw (DHS). Material and Methods. 56 paired cadaveric femurs were used as experimental and control groups. In the experimental group, PFNA-II and DHS were randomly inserted into femurs on both sides and then removed. Thereafter, compression load was applied until fracture occurred; biomechanical stability of the femurs and associated fracture patterns were studied...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27594781/a-critical-analysis-of-a-hand-orthosis-reverse-engineering-and-3d-printing-process
#8
Gabriele Baronio, Sami Harran, Alberto Signoroni
The possibility to realize highly customized orthoses is receiving boost thanks to the widespread diffusion of low-cost 3D printing technologies. However, rapid prototyping (RP) with 3D printers is only the final stage of patient personalized orthotics processes. A reverse engineering (RE) process is in fact essential before RP, to digitize the 3D anatomy of interest and to process the obtained surface with suitable modeling software, in order to produce the virtual solid model of the orthosis to be printed...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27594780/a-review-of-instrumented-equipment-to-investigate-head-impacts-in-sport
#9
REVIEW
Declan A Patton
Contact, collision, and combat sports have more head impacts as compared to noncontact sports; therefore, such sports are uniquely suited to the investigation of head impact biomechanics. Recent advances in technology have enabled the development of instrumented equipment, which can estimate the head impact kinematics of human subjects in vivo. Literature pertaining to head impact measurement devices was reviewed and usage, in terms of validation and field studies, of such devices was discussed. Over the past decade, instrumented equipment has recorded millions of impacts in the laboratory, on the field, in the ring, and on the ice...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27578961/sefre-semiexoskeleton-rehabilitation-system
#10
Winai Chonnaparamutt, Witsarut Supsi
SEFRE (Shoulder-Elbow-Forearm Robotics Economic) rehabilitation system is presented in this paper. SEFRE Rehab System is composed of a robotic manipulator and an exoskeleton, so-called Forearm Supportive Mechanism (FSM). The controller of the system is developed as the Master PC consisting of five modules, that is, Intelligent Control (IC), Patient Communication (PC), Training with Game (TG), Progress Monitoring (PM), and Patient Supervision (PS). These modules support a patient to exercise with SEFRE in six modes, that is, Passive, Passive Stretching, Passive Guiding, Initiating Active, Active Assisted, and Active Resisted...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27578960/design-concepts-of-polycarbonate-based-intervertebral-lumbar-cages-finite-element-analysis-and-compression-testing
#11
J Obedt Figueroa-Cavazos, Eduardo Flores-Villalba, José A Diaz-Elizondo, Oscar Martínez-Romero, Ciro A Rodríguez, Héctor R Siller
This work explores the viability of 3D printed intervertebral lumbar cages based on biocompatible polycarbonate (PC-ISO® material). Several design concepts are proposed for the generation of patient-specific intervertebral lumbar cages. The 3D printed material achieved compressive yield strength of 55 MPa under a specific combination of manufacturing parameters. The literature recommends a reference load of 4,000 N for design of intervertebral lumbar cages. Under compression testing conditions, the proposed design concepts withstand between 7,500 and 10,000 N of load before showing yielding...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27578959/numerical-analysis-of-hydrodynamics-for-bionic-oscillating-hydrofoil-based-on-panel-method
#12
Gang Xue, Yanjun Liu, Muqun Zhang, Hongpeng Ding
The kinematics model based on the Slender-Body theory is proposed from the bionic movement of real fish. The Panel method is applied to the hydrodynamic performance analysis innovatively, with the Gauss-Seidel method to solve the Navier-Stokes equations additionally, to evaluate the flexible deformation of fish in swimming accurately when satisfying the boundary conditions. A physical prototype to mimic the shape of tuna is developed with the revolutionized technology of rapid prototyping manufacturing. The hydrodynamic performance for rigid oscillating hydrofoil is analyzed with the proposed method, and it shows good coherence with the cases analyzed by the commercial software Fluent and the experimental data from robofish...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27578958/advances-in-rehabilitation-and-assistive-robots-for-restoring-limb-function-in-persons-with-movement-disorders
#13
Fan Gao, Guanglin Li, Huapeng Wu, Qining Wang, Jie Liu, Justin Keogh
No abstract text is available yet for this article.
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27528796/a-new-orthodontic-appliance-with-a-mini-screw-for-upper-molar-distalization
#14
Nurhat Ozkalayci, Mehmet Yetmez
The aim of this study is to present a new upper molar distalization appliance called Cise distalizer designed as intraoral device supported with orthodontic mini screw for upper permanent molar distalization. The new appliance consists of eight main components. In order to understand the optimum force level, the appliance under static loading is tested by using strain gage measurement techniques. Results show that one of the open coils produces approximately 300 gr distalization force. Cise distalizer can provide totally 600 gr distalization force...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27524881/functional-design-in-rehabilitation-modular-mechanisms-for-ankle-complex
#15
Francesco Aggogeri, Nicola Pellegrini, Riccardo Adamini
This paper is aimed at presenting an innovative ankle rehabilitation device based on a parallel mechanism. A functional analysis and design are described to obtain a device able to guarantee ankle movement while patient's body remains stationary. Human ankle is a challenging context where a series of joints are highly integrated. The proposed rehabilitation device permits a patient with walking defects to improve his or her gait. The research focuses on plantar-flexion-dorsiflexion movement. The robust design starts from an accurate modelling of ankle movements during walking, assessing motion data from healthy individuals and patients...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27524880/design-of-a-reconfigurable-robotic-system-for-flexoextension-fitted-to-hand-fingers-size
#16
J Felipe Aguilar-Pereyra, Eduardo Castillo-Castaneda
Due to the growing demand for assistance in rehabilitation therapies for hand movements, a robotic system is proposed to mobilize the hand fingers in flexion and extension exercises. The robotic system is composed by four, type slider-crank, mechanisms that have the ability to fit the user fingers length from the index to the little finger, through the adjustment of only one link for each mechanism. The trajectory developed by each mechanism corresponds to the natural flexoextension path of each finger. The amplitude of the rotations for metacarpophalangeal joint (MCP) and proximal interphalangeal joint (PIP) varies from 0 to 90° and the distal interphalangeal joint (DIP) varies from 0 to 60°; the joint rotations are coordinated naturally...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27516724/relationship-between-lower-limb-angular-kinematic-variables-and-the-effectiveness-of-sprinting-during-the-acceleration-phase
#17
Artur Struzik, Grzegorz Konieczny, Mateusz Stawarz, Kamila Grzesik, Sławomir Winiarski, Andrzej Rokita
The ability to reach a high running velocity over a short distance is essential to a high playing performance in team games. The aim of this study was to determine the relationship between running time over a 10-meter section of a 30-meter sprint along a straight line and changes in the angle and angular velocity that were observed in the ankle, knee, and hip joints. The possible presence may help to optimize motion efficiency during acceleration sprint phase. Eighteen girls involved in team sports were examined in the study...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27504072/microstructure-and-mechanical-properties-of-microwave-sintered-zro2-bioceramics-with-tio2-addition
#18
Hsien-Nan Kuo, Jyh-Horng Chou, Tung-Kuan Liu
The microwave sintered zirconia ceramics with 0, 1, 3, and 5 wt% TiO2 addition at a low sintering temperature of 1300°C and a short holding time of 1 hour were investigated. Effect of contents of TiO2 addition on microstructure and mechanical properties of microwave sintered zirconia bioceramics was reported. In the sintered samples, the main phase is monoclinic zirconia (m-ZrO2) phase and minor phase is tetragonal zirconia (t-ZrO2) phase. The grain sizes increased with increasing the TiO2 contents under the sintering temperature of 1300°C...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27478364/singular-value-decomposition-based-features-for-automatic-tumor-detection-in-wireless-capsule-endoscopy-images
#19
Vahid Faghih Dinevari, Ghader Karimian Khosroshahi, Mina Zolfy Lighvan
Wireless capsule endoscopy (WCE) is a new noninvasive instrument which allows direct observation of the gastrointestinal tract to diagnose its relative diseases. Because of the large number of images obtained from the capsule endoscopy per patient, doctors need too much time to investigate all of them. So, it would be worthwhile to design a system for detecting diseases automatically. In this paper, a new method is presented for automatic detection of tumors in the WCE images. This method will utilize the advantages of the discrete wavelet transform (DWT) and singular value decomposition (SVD) algorithms to extract features from different color channels of the WCE images...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27478363/fluid-dynamics-of-biomimetic-pectoral-fin-propulsion-using-immersed-boundary-method
#20
Ningyu Li, Yumin Su
Numerical simulations are carried out to study the fluid dynamics of a complex-shaped low-aspect-ratio pectoral fin that performs the labriform swimming. Simulations of flow around the fin are achieved by a developed immersed boundary (IB) method, in which we have proposed an efficient local flow reconstruction algorithm with enough robustness and a new numerical strategy with excellent adaptability to deal with complex moving boundaries involved in bionic flow simulations. The prescribed fin kinematics in each period consists of the power stroke and the recovery stroke, and the simulations indicate that the former is mainly used to provide the thrust while the latter is mainly used to provide the lift...
2016: Applied Bionics and Biomechanics
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