Results 111 to 120 of about 37,649 (295)

Quantifying Viscoelastic Properties of Nylon-6,6 Actuators [PDF]

open access: yes, 2018
Orthostatic Hypotension (OH) is a prevalent condition affecting 52.1% of stroke patients, characterized by a drop in atrial blood pressure upon standing.
Tamma, Poornima
core   +1 more source

A Comparative Study Between NiTi and a New Flash Treated Superelastic Ti‐Zr‐Nb‐Sn Alloy for Cardiovascular Stents

open access: yesMaterials and Corrosion, EarlyView.
The findings presented in this manuscript recommend the Ti‐22Zr‐11Nb‐2Sn alloy as a possible alternative to Nitinol for use in biomedical devices, especially in the large‐scale manufacturing of self‐expandable vascular stents used in angioplasty. ABSTRACT Nowadays, for applications such as coronary stents, the most widely used materials are Nitinol or ...
Gaëtan Cabon   +6 more
wiley   +1 more source

Current Models of Transcatheter Aortic Valves: Comparative Analysis of Design, Clinical Outcomes and Development Prospects

open access: yesApplied Sciences
Objectives: Transcatheter aortic valve implantation (TAVI) has become the standard of care for severe aortic stenosis across all surgical risk categories. Continuous innovation in prosthesis technology necessitates a comprehensive and clinically oriented
Konstantin Kozyr   +7 more
doaj   +1 more source

Cyclical bi-directional rotary actuator [PDF]

open access: yes, 1977
A thermally powered rotary actuator is disclosed which is used for positioning a shaft in first and second positions which are disposed 180 deg apart. A pair of heat extensible springs are attached to the shaft and to the frame of the rotary actuator for
Stange, W. C.
core   +1 more source

Experimental Modal Analysis‐Driven Gaussian Process Regression Modeling of Rectangular Steel Beams With Various Hole Geometries

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Understanding the dynamic behavior of structural components is crucial for optimizing performance and ensuring structural integrity. This study presents a new method that combines a systematic experimental investigation of four distinct hole geometries (circular, square, compact rectangular, and long rectangular) with varying hole counts, all ...
Amir Hossein Rabiee   +3 more
wiley   +1 more source

Review of EDM-Based Machining of Nickel–Titanium Shape Memory Alloys

open access: yesQuantum Beam Science
Shape memory alloy (SMA) materials are valued for their shape memory effect, superelasticity, and biocompatibility, making them an ideal choice for applications in biomedical, aerospace, and actuator fields.
Sujeet Kumar Chaubey, Kapil Gupta
doaj   +1 more source

SUPREME DISTRACTER [PDF]

open access: yes, 2003
A fixation device for internally or externally fixing fractures comprising at least one nitinol wire having an S-shaped section and two ends wherein each of said two ends forms a hook for hooking into a bone section of a fractured bone.

core  

Nanomedicine Meets Immunotherapy: Transforming Chimeric Antigen Receptor T Cell Treatment for Solid Tumors

open access: yesSmall Science, EarlyView.
This review highlights recent advances in nanomedicine that enhance chimeric antigen receptor (CAR) T cell therapy against solid tumors. It discusses key barriers to CAR T cell efficacy and outlines nanotechnology‐based strategies to improve tumor targeting, remodel the immunosuppressive microenvironment, and integrate nanomaterials into CAR T cell ...
Stephen O’Rourke   +3 more
wiley   +1 more source

Compositional Influence on Martensitic Transformations in Ni-Ti Alloys by Molecular Dynamics [PDF]

open access: yesMaterials Research
Over the last decades, high-entropy refractory alloys with shape memory (SM) effect have been increasingly studied. However, identifying the optimal composition among the vast array of potential systems remains a significant challenge for the scientific ...
Luis César Rodríguez Aliaga   +3 more
doaj   +1 more source

Active control of buckling of flexible beams [PDF]

open access: yes
The feasibility of using the rapidly growing technology of the shape memory alloys actuators in actively controlling the buckling of large flexible structures is investigated.
Baz, A., Tampe, L.
core   +1 more source

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