introduction: transtibial amputation is the most common amputation in lower limbs. volume loss of residual limb occurs during daily use of prostheses, which results in pistoning between residual limb and prosthetic socket. the goal of this study was to design and fabricate a pneumatic suspension system in transtibial supracondylar prostheses and to evaluate its effect on residual limb pistoning...

BACKGROUND Tympanometry and pneumatic otoscopy are recommended for diagnosis of otitis media, but are not frequently used by general practitioners (GPs). We examined how, after targeted short training, GP diagnosis and management of childhood ear disease was changed by the addition of these techniques to non-pneumatic otoscopy. We further explored factors influencing the uptake of these techniq...

background achalasia is the most recognized motor disorder of the esophagus.because it is an uncommon disease, most studies have reviewed small numbers of patients. here, we report demographic, clinical features and treatment outcomes in 700 achalasia patients. methods in all patients, diagnosis was established based on clinical, radiological, endoscopic and manometric criteria. a questionnaire...

Current conveyors are unity gain active elements exhibiting high linearity, wide dynamic range and high frequency performance than their voltage mode counterparts. The new current conveyor operating at low-voltage supplies high input impedance and low output impedance and consumes less power. In this study, a new low-voltage class AB second generation current conveyor (AB CCII) is presented whi...

We propose a novel adaptation of the Ant Colony Optimization (ACO) Technique for the resolution of analog sizing optimization problems. The paper details the proposed algorithm and highlights its performances using some mathematical test functions. This novel adaptation of the ACO technique is used for the optimal design of analog circuits, namely, a differential pair current conveyor and an in...

In this paper, a technique for realizing a floating capacitance multiplier based on the use of dual output current conveyors and grounded capacitance is proposed. Its multiplication factor can be tuned by changing the ratio of resistors. Moreover, the circuit is easily modified to electronically tunable floating capacitance multiplier by using current controlled conveyor. Simulation results are...

This paper describes the design of a current mode instrumentation amplifier using second generation current conveyor(CCII). The current mode approach offers several advantages such as high speed, better noise performance and lower power consumption as compared to conventional voltage mode approach. The design is implemented in standard 65 nm CMOS technology. Simulation is done in cadence enviro...