Results 21 to 30 of about 9,677 (255)

Impacts of Backlash on Nonlinear Dynamic Characteristic of Encased Differential Planetary Gear Train

open access: yesShock and Vibration, 2019
A multifreedom tensional nonlinear dynamic equation of encased differential planetary gear train with multibacklash and time-varying mesh stiffness was developed in the present research.
Zengbao Zhu   +3 more
doaj   +1 more source

Digital Twin-Based Optimization for Ultraprecision Motion Systems With Backlash and Friction

open access: yesIEEE Access, 2019
A digital twin-based optimization procedure is presented for an ultraprecision motion system with a flexible shaft connecting the motor to the (elastic) load, which is subject to both backlash and friction.
Rodolfo Haber Guerra   +4 more
doaj   +1 more source

Cable-Driven Actuation for Highly Dynamic Robotic Systems

open access: yes, 2018
This paper presents design and experimental evaluations of an articulated robotic limb called Capler-Leg. The key element of Capler-Leg is its single-stage cable-pulley transmission combined with a high-gap radius motor.
Hutter, Marco   +3 more
core   +1 more source

Adaptive Neural Network Control for Missile Systems With Unknown Hysteresis Input

open access: yesIEEE Access, 2017
Most existing results do not take the effects of backlash hysteresis of actuators into account in a controller design of missile systems, but such hysteresis seems inevitable in practice.
Jian-Ping Cai   +3 more
doaj   +1 more source

Hexapod Design For All-Sky Sidereal Tracking [PDF]

open access: yes, 2016
In this paper we describe a hexapod-based telescope mount system intended to provide sidereal tracking for the Fly's Eye Camera project -- an upcoming moderate, 21"/pixel resolution all-sky survey. By exploiting such a kind of meter-sized telescope mount,
Csépány, Gergely   +6 more
core   +2 more sources

Explaining Why More Americans Have No Religious Preference: Political Backlash and Generational Succession, 1987-2012 [PDF]

open access: yesSociological Science, 2014
Twenty percent of American adults claimed no religious preference in 2012, compared to 7 percent twenty-five years earlier. Previous research identified a political backlash against the religious right and generational change as major factors in ...
Michael Hout, Claude S. Fischer
doaj   +1 more source

To Strike a Pose: No Stereotype Backlash for Power Posing Women

open access: yesFrontiers in Psychology, 2016
Power posing, the adoption of open and powerful postures, has effects that parallel those of actual social power. This study explored the social evaluation of adopting powerful versus powerless body postures in men and women regarding perceived warmth ...
Miriam Rennung   +2 more
doaj   +1 more source

Inhibition of CDK9 enhances AML cell death induced by combined venetoclax and azacitidine

open access: yesMolecular Oncology, EarlyView.
The CDK9 inhibitor AZD4573 downregulates c‐MYC and MCL‐1 to induce death of cytarabine (AraC)‐resistant AML cells. This enhances VEN + AZA‐induced cell death significantly more than any combination of two of the three drugs in AraC‐resistant AML cells.
Shuangshuang Wu   +18 more
wiley   +1 more source

Da emancipação ao autoritarismo: a teoria do pós-materialismo e o “cultural backlash”

open access: yesSociologias, 2021
Resumo Cultural Backlash: Trump, Brexit, and authoritarian populism é o mais recente livro de Pippa Norris e Ronald Inglehart. A obra busca analisar transformações recentes nas democracias mais consolidadas, ancorado no modelo teórico originalmente ...
Julian Borba   +1 more
doaj   +1 more source

Vibration-based methods for structural and machinery fault diagnosis based on nonlinear dynamics tools [PDF]

open access: yes, 2012
This study explains and demonstrates the utilisation of different nonlinear-dynamics-based procedures for the purposes of structural health monitoring as well as for monitoring of robot ...
Manoach, Emil, Trendafilova, Irina
core  

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