Results 121 to 130 of about 613,855 (290)

Update regarding opportunities for orthopaedic surgeons to contribute to postmarket surveillance of potential safety issues for orthopaedic medical devices marketed in the United States

Arthroplasty Today, 2017
Vincent J. Devlin, MD
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Proposal on Updating the Air Spring Standard for Rail Vehicle

机车电传动, 2011
Testing items, testing methods and criterion for air spring were analyzed according to domestic rail vehicle service condition. Rules for domestic rail vehicle air spring were provided to comply with the running performance and safety.
程海涛, 刘建勋, 陈灿辉, 王进
doaj  

Correction for restoring force in mass measurement using dead-zone relay feedback of displacement

Mechanical Engineering Journal
In a mass measurement system using relay feedback of displacement, an object to be measured was guided mechanically by leaf springs to restrict its motion to a single translation.
Takeshi MIZUNO, Reo TANAKA, Hironari KAI, Yuji ISHINO, Masaya TAKASAKI   +4 more
doaj   +1 more source

Cavitation activity induced by spring-loaded core needle biopsy devices

Scientific Reports
Abstract Core needle biopsy is a common medical procedure to obtain tissue samples with tissue architecture for pathological assessment. One prevalent method involves the use of spring-loaded core needle biopsy devices, or “biopsy guns”. Despite their intense motion dynamics when shot through tissue, possible cavitation activity has received ...
Jussi Kiviluoto, Maxime Fauconnier, Heikki J. Nieminen   +2 more
openaire   +4 more sources

Foot pedal operated fluid type exercising device [PDF]

, 1973
A foot pedal operated exercising device is reported that contains a dynamometer formed of a pair of cylinders each containing a piston. The pistons are linked to each other.
Crum, G. W., Sauter, R. J.
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Evaluation of the accuracy of different system torque limiting devices

BMC Oral Health
Background As evaluating the accuracy of friction and spring type mechanical torque limiting devices (MTLDs), no previous study has eliminated eliminated operator-related error.
Mesut Köksal, Murat Kurt, Fuat Altuncu
doaj   +1 more source

Locking mechanism for orthopedic braces [PDF]

A locking mechanism for orthopedic braces is described which automatically prevents or permits the relative pivotable movement between a lower brace member and an upper brace member.
Epps, C. H., Jr., I-Lechao, J.
core   +1 more source

J-hook latching device [PDF]

, 1992
Described here is a latching device for latching two items together that has a housing and a shaft mounted to one item such that rotation of the shaft by a sprocket causes the shaft to move longitudinally up and down.
Milam, Malcolm B.
core   +1 more source