Results 201 to 210 of about 9,138,035 (263)

Methodological Pathways for Circular Economy in Energy and Environmental Studies: A Structured Review Toward Sustainable Development

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The circular economy (CE) has become a major focus in energy and environmental (E&E) research, as it helps advance sustainable development, improve resource efficiency and alleviate environmental pressure. Even so, the literature is still fragmented, particularly in the CE themes it explores, the levels of analysis it adopts and the methods ...
Jahira Debbarma   +2 more
wiley   +1 more source

A clavicular overuse injury in a teenage male gymnast: a rare case report. [PDF]

open access: yesFront Pediatr
Guedes Almeida T   +6 more
europepmc   +1 more source

BMAL1 modulates glutamine supply to control haematopoietic stem and progenitor cell expansion. [PDF]

open access: yesDevelopment
Petzold T   +10 more
europepmc   +1 more source

Long-term use of tDCS-clinical and ethical considerations. [PDF]

open access: yesFront Hum Neurosci
Malbois E   +3 more
europepmc   +1 more source
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Synthesis of Combined Geneva Mechanism with Cycloid Crank

2011 Second International Conference on Digital Manufacturing & Automation, 2011
When the slot number of the geneva is fixed, the kinematic coefficient of common geneva mechanism is a fixed value, too. Using the cycloid production mechanism as the drive crank of geneva is equal to the mechanism with a variable length, variable velocity and along the cycloid moving crank, which makes the kinematic coefficient of the geneva mechanism
Jiguang Han
exaly   +3 more sources

The pure-rolling cam-equivalent of the Geneva mechanism

Mechanism and Machine Theory, 2006
Abstract This paper deals with the kinematic synthesis of a pure-rolling cam mechanism kinematically equivalent to a conventional Geneva mechanism. This mechanism was designed as composed of a primary and a secondary mechanism, which work in parallel to produce an indexing motion on the driven link, identical to the wheel of the Geneva mechanism ...
Pierluigi Rea, Jorge Angeles
exaly   +4 more sources

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