Results 131 to 140 of about 33,641 (337)
The linear boom actuator designed for the Galileo spacecraft [PDF]
, 1983 Because the linear boom actuator is to be used on a flight spacecraft, as opposed to a ground based application, there is a comprehensive set of requirements. First, of course, the actuator must be capable of positioning and holding the load.
Koch, E. F.
core +1 more source
Out There No One Has a Right to Die
Bioethics, EarlyView.ABSTRACT The eventual goal of space exploration is to colonize exoplanets and their moons outside our solar system. This is a dangerous and immoral endeavour. The extraterrestrial life forms encountered would be hostile, vulnerable or both, and the descendants of the original pioneers would be involuntarily exposed to hazardous conditions and ...
Matti Häyry
wiley +1 more source
Jixie chuandong, 2015 The load sharing planetary gear speed-growth train for wind power generator is studied,which is composed of two stage planetary gear and one stage plane gear.The influence of external load excitation and time varying mesh stiffness is considered,and the ...
Wang Chunguang
doaj
Mechanical planetary compensating drive system [PDF]
, 1973 Drive enables two concentric output shafts to be controlled independently or rotated as a unit. Possible uses are pointing and tracking devices, rotary camera shutters with variable light control, gimbal systems with yaw and pitch movement, spectrometer ...
Gerdts, J. C., Jr., Zeiger, R. J.
core +1 more source
Enhancing data justice in community‐led conservation: A case study from Indonesian Borneo
Conservation Science and Practice, EarlyView.Abstract Biodiversity conservation is undergoing a process of datafication, driven by calls for evidence‐based conservation and rapid technological advances. These developments promise to enhance conservation efforts, but they also raise ethical questions.
Paul Hasan Thung +4 more
wiley +1 more source
Contemporary Methods for Capturing Juvenile Salmonids in the Marine Environment
Fish and Fisheries, EarlyView.ABSTRACT Anadromous salmonids play vital roles in marine and freshwater ecosystems. The most abundant of these fishes—Pacific salmon (Oncorhynchus spp.)—are integral to coastal ecosystems and communities across the North Pacific Rim, but numerous populations are experiencing dramatic declines, particularly towards the south of their range.
Sean C. Godwin +6 more
wiley +1 more source
Multi-Spoked Wheel Assembly [PDF]
A robust ground traction (drive) assembly for remotely controlled vehicles, which not only operates smoothly on surfaces that are flat, but also upon surfaces that include rugged terrain, snow, mud, and sand, is provided. The assembly includes a sun gear
Greer, Lawrence, Krasowski, Michael
core +1 more source
Vibration of a Helicopter Planetary Gear: Experiments and Analytical Simulation [PDF]
, 2011 Engineering: 1st Place (The Ohio State University Edward F. Hayes Graduate Research Forum)Planetary gear vibration is a major source of noise and may lead to fatigue-induced failures in bearings or other drivetrain components.
Ericson, Tristan
core
The Tooth Contact Analysis of a Heavy-load Planetary Gearing [PDF]
, 2015 Xin Tan
openalex +1 more source
Fish and Fisheries, EarlyView.ABSTRACT Sustainable fisheries are often undermined by illegal, unreported and, in some cases, unregulated fishing (collectively, IUU fishing). As such, it is critical to ensure that current research effectively informs practical fisheries management interventions.
Brittany Bartlett +10 more
wiley +1 more source