Results 101 to 110 of about 48,334 (266)

Downsizing of Electric Motors by Utilizing Differential Gear for Traction and Hydraulic Pump of Heavy Mobile Machine

open access: yesIEEE Access
Heavy mobile machines should be productive and energy efficient. Electrification drives and enables the design of new solutions that can outperform older technologies.
Topias Tyni, Jari Vepsalainen
doaj   +1 more source

On the optimization of the Space Physics Research Laboratory ultrahigh vacuum system [PDF]

open access: yes
Mathematical model for cost estimates and optimal control of ultrahigh vacuum ...
Eltimsahy, A.
core   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone   +3 more
wiley   +1 more source

Conceptual design study of an improved automotive gas turbine powertrain [PDF]

open access: yes
Automotive gas turbine concepts with significant technological advantages over the spark ignition (SI) engine were assessed. Possible design concepts were rated with respect to fuel economy and near-term application.
Pampreen, R. C., Wagner, C. E.
core   +1 more source

Three-dimensional tracking solar energy concentrator and method for making same [PDF]

open access: yes, 1977
A three dimensional tracking solar energy concentrator, consisting of a stretched aluminized polymeric membrane supported by a hoop, was presented. The system is sturdy enough to withstand expected windage forces and precipitation.
Miller, C. G., Pohl, J. G.
core   +1 more source

Incorporating environmental DNA metabarcoding for improved benthic biodiversity and habitat mapping

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Seafloor imagery is commonly used to collect information about the distribution of benthic organisms in order to generate habitat and biodiversity maps. Recent advances in genomics (e.g., environmental DNA; eDNA) show potential to complement video surveys for habitat mapping, but there have been few examples testing this.
Rylan J. Command   +8 more
wiley   +1 more source

Thermal mechanical analysis of sprag clutches [PDF]

open access: yes
Work done at Case Western Reserve University on the Thermal Mechanical analysis of sprag helicopter clutches is reported. The report is presented in two parts.
Kurniawan, Antonius S.   +2 more
core   +1 more source

Advancing Sustainable Development Through Exports of Clean Energy Products From Emerging Asian Economies: A Poisson Pseudo Maximum Likelihood Estimation Approach

open access: yesSustainable Development, EarlyView.
ABSTRACT The promotion of clean energy is critical to achieving sustainable development. This study investigates the factors that affect the exports, trade potential, and revealed comparative advantage (RCA) of clean energy products (CEPs) in the emerging Asian economies (EAEs).
Arvind Goswami   +2 more
wiley   +1 more source

Advanced continuously variable transmissions for electric and hybrid vehicles [PDF]

open access: yes
A brief survey of past and present continuously variable transmissions (CVT) which are potentially suitable for application with electric and hybrid vehicles is presented. Discussion of general transmission requirements and benefits attainable with a CVT
Loewenthal, S. H.
core   +1 more source

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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