Results 111 to 120 of about 25,796 (255)

Non‐Rigid 3D Shape Correspondences: From Foundations to Open Challenges and Opportunities

open access: yesComputer Graphics Forum, EarlyView.
Abstract Estimating correspondences between deformed shape instances is a long‐standing problem in computer graphics; numerous applications, from texture transfer to statistical modelling, rely on recovering an accurate correspondence map. Many methods have thus been proposed to tackle this challenging problem from varying perspectives, depending on ...
A. Zhuravlev   +14 more
wiley   +1 more source

Identification and proposed control of helicopter transmission noise at the source [PDF]

open access: yes
Helicopter cabin interiors require noise treatment which is expensive and adds weight. The gears inside the main power transmission are major sources of cabin noise.
Coy, John J.   +6 more
core   +2 more sources

Electromagnetic mirror drive system [PDF]

open access: yes, 1969
Oscillatory electromagnetic mirror drive system for horizon ...
Groom, N. J.   +2 more
core   +1 more source

Points vs. passes: A comparison between electric fishing techniques for sampling fish populations in upland headwater streams

open access: yesJournal of Fish Biology, EarlyView.
Abstract Point‐abundance sampling by electric fishing (PASE) was compared with single‐pass (DF1) and triple‐pass depletion sampling (DF3) electric fishing on the same reaches of four headwater streams sampled over multiple years in the Ribble catchment, UK. Juvenile salmonids, mostly brown trout Salmo trutta with some Atlantic salmon S.
Reagan H. Pearce   +3 more
wiley   +1 more source

Full-scale transmission testing to evaluate advanced lubricants [PDF]

open access: yes
Experimental tests were performed on the OH-58A helicopter main rotor transmission in the NASA Lewis 500 hp helicopter transmission test stand. The testing was part of a lubrication program. The objectives are to develop and show a separate lubricant for
Decker, Harry J.   +2 more
core   +1 more source

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 6, Page 3116-3130, June 2026.
ABSTRACT Purpose Echo‐Planar Imaging (EPI) is central to fMRI, diffusion MRI, and many dynamic clinical applications, yet rapid gradient switching induces strong mechanical vibrations, generates acoustic noise, and contributes to ghosting artifacts—effects that intensify at ultra‐high fields.
Amir Seginer   +6 more
wiley   +1 more source

Design of Bridged Ring Modulators in Coaxial Magnetic Gears

open access: yesJixie chuandong
In the design of coaxial magnetic gears, the bridged modulating ring is proved to be an effective strategy for reducing the manufacturing difficulty and enhancing the mechanical strength of the structure.
Li Dehao   +4 more
doaj  

Thermal mechanical analysis of sprag clutches [PDF]

open access: yes
Work done at Case Western Reserve University on the Thermal Mechanical analysis of sprag helicopter clutches is reported. The report is presented in two parts.
Kurniawan, Antonius S.   +2 more
core   +1 more source

A Cosmic Microwave Background Radiation Polarimeter Using Superconducting Bearings

open access: yes, 2003
Measurements of the polarization of the cosmic microwave background (CMB) radiation are expected to significantly increase our understanding of the early universe.
Hanany, S.   +5 more
core   +2 more sources

Effectiveness of Virtual Reality for Pain Relief in Procedures Related to Obstetrics and Gynaecology: A Systematic Review and Meta‐Analysis of Randomised Controlled Trials

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, Volume 133, Issue 7, Page 1358-1372, June 2026.
ABSTRACT Background Immersive virtual reality (VR) technology offers a non‐invasive, non‐pharmacological approach to reduce pain perception in patients undergoing diagnostic or interventional procedures. Objective To systematically evaluate the efficacy of immersive VR technology in reducing pain perception during obstetric and gynaecological ...
Jhia Jiat Teh   +5 more
wiley   +1 more source

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