Linear and nonlinear modeling of cerebral flow autoregulation using principal dynamic modes [0.03%]
基于主动态模式的脑血流自调节的线性与非线性建模方法研究
Vz Marmarelis,Dc Shin,R Zhang
Vz Marmarelis
Cerebral Flow Autoregulation (CFA) is the dynamic process by which cerebral blood flow is maintained within physiologically acceptable bounds during fluctuations of cerebral perfusion pressure. The distinction is made with "static" flow aut...
Mathematical models based on transfer functions to estimate tissue temperature during RF cardiac ablation in real time [0.03%]
基于传递函数的数学模型实时估算射频心脏消融过程中组织温度
Jose Alba-Martínez,Macarena Trujillo,Ramon Blasco-Gimenez et al.
Jose Alba-Martínez et al.
Radiofrequency cardiac ablation (RFCA) has been used to treat certain types of cardiac arrhythmias by producing a thermal lesion. Even though a tissue temperature higher than 50ºC is required to destroy the target, thermal mapping is not c...
PEEK (Polyether-ether-ketone) Based Cervical Total Disc Arthroplasty: Contact Stress and Lubrication Analysis [0.03%]
聚醚醚酮(PEEK)材料的人工颈椎间盘置换体接触应力及润滑性能研究
H Xin,Det Shepherd,Kd Dearn
H Xin
This paper presents a theoretical analysis of the maximum contact stress and the lubrication regimes for PEEK (Polyether-ether-ketone) based self-mating cervical total disc arthroplasty. The NuNec(®) cervical disc arthroplasty system was c...
Computational knee ligament modeling using experimentally determined zero-load lengths [0.03%]
基于实验确定的零载长度的膝关节韧带计算模型
Katherine H Bloemker,Trent M Guess,Lorin Maletsky et al.
Katherine H Bloemker et al.
This study presents a subject-specific method of determining the zero-load lengths of the cruciate and collateral ligaments in computational knee modeling. Three cadaver knees were tested in a dynamic knee simulator. The cadaver knees also ...
Simulation of anterior cruciate ligament deficiency in a musculoskeletal model with anatomical knees [0.03%]
具有解剖学膝关节的肌骨模型中前交叉韧带缺损的模拟
Trent M Guess,Antonis Stylianou
Trent M Guess
Abnormal knee kinematics and meniscus injury resulting from anterior cruciate ligament (ACL) deficiency are often implicated in joint degeneration even though changes in tibio-femoral contact location after injury are small, typically only ...
Michael R Dawson,Farbod Fahimi,Jason P Carey
Michael R Dawson
The objective of above-elbow myoelectric prostheses is to reestablish the functionality of missing limbs and increase the quality of life of amputees. By using electromyography (EMG) electrodes attached to the surface of the skin, amputees ...
Ron Davis,Robert Malkin
Ron Davis
Biphasic defibrillation waveforms are now accepted as being more effective at terminating ventricular fibrillation (VF) than monophasic waveforms. If two phases are better than one, this naturally leads to the hypothesis that additional pha...
Observer-based state feedback for enhanced insulin control of type 'i' diabetic patients [0.03%]
基于观测器的状态反馈在1型糖尿病患者胰岛素控制中的应用
Ali Hariri,Le Yi Wang
Ali Hariri
During the past few decades, biomedical modeling techniques have been applied to improve performance of a wide variety of medical systems that require monitoring and control. Diabetes is one of the most important medical problems. This pape...
Prediction of bodyweight and energy expenditure using point pressure and foot acceleration measurements [0.03%]
基于点压强和足部加速度测量的体重预测及能量消耗估算
Nadezhda A Sazonova,Raymond Browning,Edward S Sazonov
Nadezhda A Sazonova
Bodyweight (BW) is an essential outcome measure for weight management and is also a major predictor in the estimation of daily energy expenditure (EE). Many individuals, particularly those who are overweight, tend to underreport their BW, p...
P S D Patel,E M Aspinwall,A J Fennell et al.
P S D Patel et al.
Pedicle screw (PS) malpositioning rates are high in spine surgery. This has resulted in the use of computed navigational aids to reduce the rate of malposition; but these are often expensive and limited in availability. A simple mechanical ...