Results 21 to 30 of about 746,464 (231)

Hypoconstrained Jammed Packings of Nonspherical Hard Particles: Ellipses and Ellipsoids [PDF]

open access: yes, 2006
Continuing on recent computational and experimental work on jammed packings of hard ellipsoids [Donev et al., Science, vol. 303, 990-993] we consider jamming in packings of smooth strictly convex nonspherical hard particles.
Aleksandar Donev   +11 more
core   +1 more source

ASSESSMENT OF THE PARAMETERS OF THE INTEROCCLUSION RELATIONSHIP IN THE PROCESS OF MESIALIZATION OF THE LOWER MOLARS WITH THE USE OF T-SCAN

open access: yesУкраїнський стоматологічний альманах, 2020
The aim of the study. Conduct a digital analysis of the distribution of relative force occlusal load in the area of the second permanent mandibular molars before and after their mesialization. Research methods.
V.S. Melnyk   +4 more
doaj   +1 more source

Is There a Relationship Between Workload and Occurrence of Back Pain and Back Injuries in Athletes?

open access: yesFrontiers in Physiology, 2020
The back is subjected to a great deal of strain in many sports. Up to 20% of all sports injuries involve an injury to the lower back or neck. Repetitive or high impact loads (e.g., running, gymnastics, skiing) and weight loading (e.g., weightlifting ...
Erika Zemková   +4 more
doaj   +1 more source

Hybrid Fibres as Shear Reinforcement in High-Performance Concrete Beams with and without Openings

open access: yesApplied Sciences, 2018
The article presents the results of research work aimed at testing the use of hybrid steel-polypropylene fibre as a strengthening solution to upgrade reinforced high-performance concrete (HPC) beams with openings (BO1 ÷ BO3) and without (B1 ÷ ...
Piotr Smarzewski
doaj   +1 more source

Performance of a self-lifting linear air contact [PDF]

open access: yes, 2007
An investigation into the performance of a self-levitating linear air bearing that functions on the squeeze film principle was conducted and a detailed set of results describing its floating characteristics at various operating parameters is presented ...
Stolarski, T A, Woolliscroft, S P
core   +1 more source

Mechanical Wear and Friction Behavior of 30CrMnSiNi2A Steel Rocket Sled Sliders Under High-Speed and Heavy-Load Conditions: A Finite Element Analysis

open access: yesMetals
The rocket sled slider is a key connection component between the rocket sled and the track for support, guidance and load-bearing, ensuring the system’s safe and reliable operation. Wear of sliders under high—velocity and heavy—load conditions is crucial
Ye Hao   +10 more
doaj   +1 more source

Failure characteristics of all polyethylene cemented glenoid implants in total shoulder arthroplasty [PDF]

open access: yes, 2010
Total shoulder arthroplasty (TSA) still suffers today from mid-term and long-term complications such as glenoid implant loosening, wear, humeral head subluxation/dislocation and implant fracture. Unlike the hip and knee joint replacements, the artificial
Junaid, Sarah, Junaid, Sarah
core   +1 more source

Tribological Behavior of Very Thin Confined Films [PDF]

open access: yes, 2000
The tribological properties of two smooth surfaces in the presence of a thin confined film are investigated with a generic model for the interaction between two surfaces and with computer simulations.
Bloch, Anthony, Hussein, Islam I.
core   +2 more sources

Contact Pressure Distribution in Joints Formed by V-Band Clamps [PDF]

open access: yes, 2014
V-band clamps offer an efficient clamping solution in diverse applications including process equipment, exhaust systems and air handling. This paper studies the distribution of interface contact pressure between the V-band and flange when the coupling ...
Barrans, Simon   +2 more
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

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