Results 91 to 100 of about 4,479,330 (277)

Dynamic Modeling and Simulation Control of 3-DOF Bionic Shoulder Joint

open access: yesJixie chuandong, 2017
According to the characteristics of shoulder joint,a decoupling parallel bionic shoulder joint driven by pneumatic muscle actuators( PMAs) is presented. Based on screw theory,the freedoms of 3-DOF parallel mechanism are analyzed.
Li Fang, Xu Jiaqi, Liu Kai, Wu Yang
doaj  

Reverse logistics - a framework [PDF]

open access: yes
In this paper we define and compare Reverse Logistics definitions. We start by giving an understanding framework of Reverse Logistics: the why-what-how.
Dekker, R., Brito, M.P. de
core  

Spatial resolution and receptive field height of motion sensors in human vision [PDF]

open access: yes, 2000
We estimated the length of motion-detecting receptive fields in human vision by measuring direction discrimination for three novel stimuli. The motion sequences contained either (i) alternate frames of two differently oriented sinusoidal gratings; (ii ...
Scott-Samuel, NE   +5 more
core   +1 more source

ADP‐ribosylation: An emerging regulator of the epigenome

open access: yesMolecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho   +2 more
wiley   +1 more source

Dynamics and Power Analysis of 2–UPR&2–RPU Redundant Parallel Mechanism

open access: yes工程科学与技术, 2021
A novel 2–UPR&2–RPU parallel mechanism with redundance structure was proposed, which has two rotations and one movement (2R1T) degree of freedom.
Guangchun LIN   +3 more
doaj  

Preliminary earthquake focal mechanism forecasts for the Amatrice sequence (central Italy)

open access: yesAnnals of Geophysics, 2016
We place the Amatrice (central Italy) seismic sequence and the related epicentral area in a contest of Probabilistic Seismic Hazard Analysis (PSHA). We apply a procedure to compute the probability to observe in the future a normal, reverse or strike-slip
Pamela Roselli, Maria Teresa Mariucci
doaj   +1 more source

Divergent mechanisms of perceptual reversals in spinning and wobbling structure-from-motion stimuli

open access: yesPLOS ONE
This study explores the visual phenomenon of random dot structure-from-motion (SFM), where the brain perceives 3D shapes from the coordinated 2D motion of dots. Observing SFM may lead to ambiguous depth relations that reverse back and forth during prolonged viewing.
openaire   +4 more sources

Reciprocal Interactions Between Motion and Form Perception [PDF]

open access: yes, 1994
The processes underlying the perceptual analysis of visual form are believed to have minimal interaction with those subserving the perception of visual motion (Livingstone and Hubel, 1987; Victor and Conte, 1990).
Sinha, Pawan, Pawan Sinha
core   +1 more source

Castration‐resistant prostate cancer cells are addicted to the high activity of cyclin‐dependent kinase 2

open access: yesMolecular Oncology, EarlyView.
We show that emergence of castration‐resistant prostate (CRPC) is associated with significant upregulation of cyclins that positively regulate cyclin‐dependent kinase 2 (CDK2) and concomitant downregulation of CDK4 cyclins. This renders CRPC cells dependent on the high activity of CDK2, and CDK2 inhibitors synergistically sensitize CRPC cells to both ...
Joyeeta Chatterjee   +3 more
wiley   +1 more source

Innovative design and experimental verification of cam shedding for high-speed looms

open access: yesAlexandria Engineering Journal
For overcoming space limitations and load-bearing defects of traditional conjugate cam shedding on looms, a novel cam shedding system with double-shaft was developed by incorporating mechanism analysis, theoretical calculations, modeling and simulation ...
Haifei Qiu   +3 more
doaj   +1 more source

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