Results 61 to 70 of about 17,701 (214)

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

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  

Security Shaping Sustainability: The Difference Between Securitized and Community‐Based Conservation in Benin

open access: yesSustainable Development, EarlyView.
ABSTRACT As global conservation efforts intensify, balancing environmental protection with social sustainability has become increasingly urgent. This study employs a comparative case study approach to examine two natural resource management interventions in northern Benin: one led by African Parks in an insecure zone, and another by TMG Research in a ...
Ramoudane Orou Sannou   +1 more
wiley   +1 more source

Моделирование сборки волновой зубчатой передачи методом конечных элементов [PDF]

open access: yes, 2010
Розглянуто моделювання зборки хвильової зубчастої передачі (ХЗП), зокрема деформація гнучкого колеса, генератора хвиль та взаємодія зубців гнучкого та жорсткого коліс.
Нарыжный, А. Г.   +1 more
core  

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

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  

Dual drive actuators [PDF]

open access: yes, 1982
A new class of electromechanical actuators is described. These dual drive actuators were developed for the NASA-JPL Galileo Spacecraft. The dual drive actuators are fully redundant and therefore have high inherent reliability.
Packard, D. T.
core   +1 more source

Model‐Based Systems Engineering in Space Applications: A Comprehensive Literature Review

open access: yesSystems Engineering, EarlyView.
ABSTRACT The growing complexity of space engineering is driving the demand to embrace the adoption of Model‐Based Systems Engineering (MBSE). Although the MBSE is well‐practiced in the space industry, the level of effort and need required to obtain the benefits of MBSE vastly differ across enterprises; this disparity presents a significant challenge to
Rehobot Bekele Buruso   +4 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  

Corporate Social Responsibility and Firm Performance: Investigating the Role of Management Innovation Through Marketing Intensity

open access: yesThunderbird International Business Review, EarlyView.
ABSTRACT This study investigates the relationship between Corporate Social Responsibility (CSR) and firm performance using panel data from 716 Chinese firms listed on the Shanghai and Shenzhen Stock from 2013 to 2019. It further examines the role of management innovation, specifically marketing intensity, in moderating the CSR–financial performance ...
Freeman Brobbey Owusu   +4 more
wiley   +1 more source

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