Results 71 to 80 of about 17,843 (276)

Failure of Harmonic Gears During Verification of a Two-Axis Gimbal for the Mars Reconnaissance Orbiter Spacecraft [PDF]

open access: yes
The Mars Reconnaissance Orbiter (MRO) spacecraft has three two-axis gimbal assemblies that support and move the High Gain Antenna and two solar array wings.
Gehling, Russ   +2 more
core   +1 more source

A Methodological Pathway for Supporting the Transition From Theory to Practice in Action‐Oriented Research for Transformative Change

open access: yesSustainable Development, EarlyView.
ABSTRACT Over recent decades, action‐oriented research has gained prominence in co‐producing actionable knowledge to drive transformative change toward sustainability. However, further methodological developments are needed to support the transition to the application phase of such knowledge.
María D. López‐Rodríguez   +7 more
wiley   +1 more source

Actuators for a space manipulator [PDF]

open access: yes
The robotic manipulator can be decomposed into distinct subsytems. One particular area of interest of mechanical subsystems is electromechanical actuators (or drives). A drive is defined as a motor with an appropriate transmission.
Brunson, P., Chun, W.
core   +1 more source

Kinematic analysis of complex gear mechanisms [PDF]

open access: yes, 2010
This paper presents a general kinematic analysis method for complex gear mechanisms. This approach involves the null-space of the adjacency matrix associated with the graph of the mechanism weighted by complex coecients.
Alazard, Daniel, Penaud, Julie
core  

High‐Speed Rail and Spatial Equity: Unpacking the Sustainability Paradox of Land Use and Fiscal Pressure in County‐Level Cities

open access: yesSustainable Development, EarlyView.
ABSTRACT Infrastructure‐led development in rapidly urbanizing economies often generates accessibility gains that fail to translate into balanced urban outcomes, particularly when local fiscal institutions redirect those gains toward revenue‐generating land uses. Filling this gap, especially in fiscally constrained county‐level cities where land finance
Ming Xie, Xiaoxiao Liao, Zhenlin Xie
wiley   +1 more source

齿啮式谐波传动柔轮负载变形函数及齿形修正的研究

open access: yesJixie chuandong, 2011
Taking tooth-locked-output harmonic drive as research object,the harmonic drive theory kinematic model is established.Based on the no-load deformation function and meshing equation,the flexible gear tooth tooth profile is set to obtain the conjugate ...
董惠敏, 张春懋
doaj  

Low-cost active orthosis for gait assistance of subjects with spinal cord injury [PDF]

open access: yes, 2016
Postprint (published ...
Alonso Sánchez, Francisco Javier   +6 more
core  

Bridging Global Sustainability Objectives With Corporate Reporting Standards: Sustainable Development Goals Meet European Sustainability Reporting Standards

open access: yesSustainable Development, EarlyView.
ABSTRACT Given the complexity of the Sustainable Development Goals (SDGs), aligning corporate sustainability with them can be challenging. Drawing on systems thinking, this study examines how the European Sustainability Reporting Standards (ESRS) align with the SDGs and bridge macro‐level global goals with firm‐level metrics.
Chonlawan Thammaraksa   +3 more
wiley   +1 more source

Study on Establishing the Basic Engaging Equation of Harmonic Drive By the B Metrix Method

open access: yesJixie chuandong, 1996
The basic engaging equation of the Harmonic Drive is established by using the B metrix method Which is presented in the literature . The Harmonic Drive B Metrix is suitable for any wave Style.
辛洪兵, 谢金瑞, 何惠阳
doaj  

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

open access: yesSmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen   +12 more
wiley   +1 more source

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