Results 41 to 50 of about 560,047 (295)
Sufficient Conditions for Apparent Horizons in Spherically Symmetric Initial Data [PDF]
, 1997 We establish sufficient conditions for the appearance of apparent horizons in spherically symmetric initial data when spacetime is foliated extrinsically.
E. Malec +8 more
core +2 more sources
A Termite‐Inspired Alternative to Cement
Advanced Functional Materials, EarlyView.A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev +3 more
wiley +1 more source
Electroactive Liquid Crystal Elastomers as Soft Actuators
Advanced Functional Materials, EarlyView.Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley +1 more source
Experimental Research on Variable Stiffness Property of Hydraulic Ball Joint for Rail Vehicles
机车电传动, 2019 One hydraulic ball joint with variable stiffness characteristics for rail vehicles was proposed, which used hydraulic mechanism embedded in rubber elastomer to improve dynamic stiffness.
Xingwu DING +5 more
doaj
Optimizing simulation for lower limb motion during throwing in water polo
Mechanical Engineering Journal, 2015 The objective of this study was to clarify the optimized lower limb motion during throwing in water polo by the simulation. The flexion/extension angles of the hip joint around the ball release were optimized in order to maximize the ball velocity, which
Motomu NAKASHIMA +2 more
doaj +1 more source
Numerical simulation on welding residual stress and deformation of all-welded ball valves
You-qi chuyun, 2021 The characteristics of welding residual stresses are of great significance for the safe operation and the structural improvement of all-welded ball valves.
Bo HUANG +5 more
doaj +1 more source
The Controllable Ball Joint Mechanism
JSME International Journal Series C, 2006 A controllable ball joint mechanism with three rotational degrees of freedom is proposed in this paper. The mechanism is composed of three bevel gears, one of which rotates with respect to a fixed frame and the others rotate with respect to individual floating frames.
Yung Cheng TUNG +2 more
openaire +2 more sources
Flexible fastener allows thermal expansion [PDF]
, 1964 A flexible fastener permits thermal expansion of model skin sections which are rigidly attached to supporting structures in wind tunnel tests.
Crumpler, W. B.
core +1 more source
Coordination of reaching in children with spastic hemiparetic cerebral palsy under different task demands [PDF]
, 2005 Coordination of reaching with the impaired and non-impaired arm in 10 children with spastic hemiparetic cerebral palsy (SHCP) was examined in a stationary ball and moving ball context.
Bennett, S. +2 more
core +3 more sources
Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation
Advanced Functional Materials, EarlyView.A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah +9 more
wiley +1 more source