Results 61 to 70 of about 23,597,316 (348)
Kinematic Equations for Front Motion and Spiral-Wave Nucleation
, 1997 We present a new set of kinematic equations for front motion in bistable media. The equations extend earlier kinematic approaches by coupling the front curvature with the order parameter associated with a parity breaking front bifurcation. In addition to
Aric Hagberg +17 more
core +1 more source
Multiple-fault detection methodology based on vibration and current analysis applied to bearings in induction motors and gearboxes on the kinematic chain [PDF]
, 2016 © 2016 Juan Jose Saucedo-Dorantes et al. Gearboxes and induction motors are important components in industrial applications and their monitoring condition is critical in the industrial sector so as to reduce costs and maintenance downtimes.
Delgado Prieto, Miquel +4 more
core +2 more sources
, 2018 Unifying the models for topology design and kinematic analysis has long been a desire for the research of parallel kinematic machines (PKMs). This requires that analytical description, formulation and operation for both finite and instantaneous motions ...
T. Sun, Shuofei Yang, Tian Huang, J. Dai
semanticscholar +1 more source
Nature Communications, 2017 Left–right asymmetry is a fundamental feature of body plans, but its formation mechanisms and roles in functional lateralization remain unclear. Accumulating evidence suggests that left–right asymmetry originates in the cellular chirality.
A. Tamada, M. Igarashi
semanticscholar +1 more source
Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami
Advanced Functional Materials, EarlyView.A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding +7 more
wiley +1 more source
Biomechanical Hand Prosthesis Design
Machines, 2023 There are various studies on the structural and functional constructions of hand prostheses inspired by human biomechanics, and there are different kinds of prostheses available on the market. This paper aims to present the relevant stages of designing a
Emilia Furdu Lunguţ +4 more
doaj +1 more source
Kinematic gait analysis in hemiplegic patients
Journal of Rehabilitation Medicine, 1993 Temporal-distance variables of gait were investigated in 8 female and 23 male hemiplegic patients in order to assess the distribution of these variables according to functional ambulation category and to evaluate their validity. Video-recording technique was used for obtaining the temporal-distance values.
OZGIRGIN, N +3 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou +8 more
wiley +1 more source
Research and Mechanism Design Analysis of Devices Based on Human Upper Limb Stretching
MachinesThe upper limb stretching device plays a key role in enhancing physical function. Current commercial upper limb stretching devices often suffer from limited functionality and are poorly aligned with the biomechanics of the human arm.
Ruijie Gu +5 more
doaj +1 more source
Kinematic Models and the Performance Level Index of a Picking-and-Placing Hybrid Robot
Machines, 2023 The mobile platform of the parallel robot designed for picking and placing operations is usually equipped with one or two extra degree(s) of freedom to enable flexible grasping orientations.
Qi Zou, Dan Zhang, Guanyu Huang
doaj +1 more source