Results 71 to 80 of about 315,723 (336)

Feasibility and anteversion accuracy of a patient-specific instrument for femoral prosthesis implantation in total hip arthroplasty [PDF]

, 2023
Wei Zheng, Xuefeng Liu, Runhong Mei, Gaorong Deng, Zhipeng Li, Rongji Lin, Shui Xiong, Binghua Wu   +7 more
openalex   +1 more source

Near‐Sensor Analog Computing via Monolithic 3D Piezoelectric Sensor–FeFET for Tactile Sensing System

Advanced Functional Materials, EarlyView.
A monolithic 3D‐integrated tactile system combines a piezoelectric sensor and ferroelectric field‐effect transistor (FeFET) to process both static and dynamic pressure signals directly at the sensor node. The system enables in‐sensor analog noise filtering with multi‐level memory states, achieving high sensitivity and ultra‐low power operation (≈10 nW),
Woongjin Kim, Seungyeob Kim, Jinwook Ha, Taeseung Jung, Yunjeong Kim, Jinho Ahn, Sanghun Jeon   +6 more
wiley   +1 more source

Satisfaction of Veterans with Trans-Radial Amputations from Myoelectric Prosthesis and Prosthetic Services Referring to Kowsar Orthotics and Prosthetics Center in Tehran

طب جانباز, 2018
Aims: The war leads to a lot of physical damage. The most common level of amputation is the upper limb, cutting off at the below elbow. The aim of this study was to investigate satisfaction of veterans with trans-radial amputations from myoelectric ...
J. Heidari, Gh.R. Aminian, M. Bahramizadeh,   +3 more
doaj  

Transient elastohydrodynamic lubrication analysis of a novel metal-on-metal hip prosthesis with a non-spherical femoral bearing surface

, 2011
Effective lubrication performance of metal-on-metal hip implants only requires optimum conformity within the main loaded area, while it is advantageous to increase the clearance in the equatorial region.
Anissian H.L., Bergmann G., Calonius O., Catelas I., Dobbs H.S., Dowson D., Firkins P.J., Gao LM, Grubl A., Hu X.Q., Jacobs J.J., Lee R., Liu F., Meng Q.E., Meng QE, Rieker C., Skipor A.K., Tuke M.A., Venner C.H., Wang F.C., Yao J.Q.   +20 more
core   +1 more source

Revision rates after primary hip and knee replacement in England between 2003 and 2006 [PDF]

, 2008
<b>Background</b>: Hip and knee replacement are some of the most frequently performed surgical procedures in the world. Resurfacing of the hip and unicondylar knee replacement are increasingly being used.
Alex J MacGregor, Archibeck, Baker, Berger, Charnley, Coventry, Daniel, Griffin, Hardoon, Hardoon, Harri Sievanen, Huo, Jan H van der Meulen, Jim D Lewsey, Johnsen, Kalbfleisch, Keith Tucker, Koskinen, Lynn P Copley, Marker, Martin Pickford, Martyn Porter, Mick Borroff, Mont, Morshed, Newman, Nokuthaba Sibanda, Paul Gregg, Ranawat, Slover, Treacy   +30 more
core   +4 more sources

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

Artificial teeth obtained by additive manufacturing: Wear resistance aspects. A systematic review of in vitro studies

Heliyon
Wear resistance is one of the properties that must be considered for maintaining the long-term functionality of artificial teeth in dental prostheses. This property can be altered by the method of tooth fabrication, the material, the chewing force, and ...
Izabela Ferreira, João Vicente Calazans Neto, Andréa Cândido dos Reis   +2 more
doaj   +1 more source

The influence of double flask processing in occlusal plane when a couple of dentures are processed in occlusal position

Brazilian Journal of Oral Sciences, 2015
Equilibrate occlusion system is an important goal in oral rehabilitation. This occlusal scheme is established when the denture teeth are placed in the plane of orientation, and could be changed by alterations related to polymerization resin process.
Célia Marisa Rizzatti-Barbosa, Vicente de Paula Prisco da Cunha, Leonardo Marchini, Margarete Cristiane Ribeiro   +3 more
doaj   +1 more source

Calculation of wear (f.i. wear modulus) in the plastic cup of a hip joint prosthesis [PDF]

, 1975
The wear equation is applied to the wear process in a hip joint prosthesis and a wear modulus is defined. The sliding distance, wear modulus, wear volume, wear area, contact angle and the maximum normal stress were calculated and the theoretical ...
Ligterink, D.J.
core   +3 more sources

Mechanotransducing Organic Electrochemical Diode for Crosstalk‐Inhibited Artificial Skin

Advanced Functional Materials, EarlyView.
An innovative approach is presented to a stretchable mechanotransducing diode that unifies rectification and tactile‐sensing functionality. This approach enables to fabricate the diode that maintains a large rectification ratio (5 × 102) at a high operational frequency (100 Hz).
Taeyeong Kim, Seunggoo Baek, Garrett Lecroy, Hyeongseok Choi, Wonjeong Suh, Woosung Cho, Alberto Salleo, Unyong Jeong   +7 more
wiley   +1 more source