Results 181 to 190 of about 703,248 (356)

Potentials for fisheries in the Niger Delta: Another green light for self sufficiency in regional food production [PDF]

open access: yes, 1985
A discussion is presented on the potential for fishery development in the Niger Delta region, considering engineering activities and food production potentials of the freshwater zone and immediate hinterland, the brackishwater mangrove swamps and the ...
Nalaguo, C.A.
core  

Hydraulic Multi-Chamber Cylinders in Construction Machinery

open access: yes, 2015
Vehicular Research Program (FFI) in the Swedish Energy Agency under Grant [39367-1].
Heybroek, Kim, Norlin, Erik
openaire   +2 more sources

An Eyeball‐Movement‐Inspired Multi‐DOF Miniature Piezoelectric Actuator with Strong Load‐Driving Capability

open access: yesAdvanced Intelligent Systems, EarlyView.
Inspired by the eye movements of humans, a multi‐degree‐of‐freedom (multi‐DOF) miniature piezoelectric actuator with a square‐circular ring structure is proposed. The actuator demonstrates a well‐balanced performance in miniaturization, operational efficiency, actuation precision, and load‐driving capability.
Binbin Zhu, Yan Qing Wang
wiley   +1 more source

Poligromorph Materials: Shape Morphing Functional Polyvinyl Alcohol/Maleic Anhydride Ethylene‐Propylene/Carbon Composites in Aqueous and Hydrocarbon‐Based Media

open access: yesAdvanced Intelligent Systems, EarlyView.
Hygromorphic materials, such as pinecone scales, respond to humidity changes. This study presents poligromorphic composites—composed of carbon fibers (CFs), polyvinyl alcohol (PVA), and maleic anhydride ethylene‐propylene (MA‐EPR)—that react to water, humidity, and hydrocarbons.
Liia Buhhanevits   +4 more
wiley   +1 more source

Advances in 3D Printing Technologies for Fabricating Magnetic Soft Microrobots

open access: yesAdvanced Intelligent Systems, EarlyView.
This paper gives an in‐depth synopsis of various additive manufacturing technologies used to fabricate magnetic soft microrobots. The review covers the basics behind magnetism and the materials used. It then dives into three‐dimensional printing technologies including extrusion, photopolymerization, jetting, etc.
Kaitlyn Clancy   +2 more
wiley   +1 more source

A Fuzzy Risk Assessment Approach Based on Z‐Numbers for Enhancing Safety and Human‐Robot Collaboration in Automotive Sector

open access: yesAdvanced Intelligent Systems, EarlyView.
A novel risk assessment approach that integrates the fuzzy set theory and Z‐numbers with multicriteria decision‐making techniques (Delphi, decision‐making trial and evaluation laboratory, analytic network process, and VIseKriterijumska Optimizacija I Kompromisno Resenje) to manage uncertainty and prioritize human–robot collaboration risks. A real‐world
Emine Bozkus, İhsan Kaya
wiley   +1 more source

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