Results 61 to 70 of about 8,693,127 (299)

Research on Cavitation Performance of Bidirectional Integrated Pump Gate

open access: yesEnergies, 2023
A pump gate is a device that controls the flow of water. It can stop the flood when it comes, drain the ponding gathered in the city, and improve the water circulation of the city.
Huahuang Lai   +4 more
doaj   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials

open access: yesAdvanced Functional Materials, EarlyView.
Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni   +4 more
wiley   +1 more source

PDC Bit Optimization and Application in Panyu Oilfield of the South China Sea

open access: yesShiyou jixie, 2016
Panyu Oilfield of the South China Sea is subject to several technical problems.For example, soft and hard formations are repeatedly staggered to possibly damage drill bits and tools; plastic soft clay is prone to bit balling; high requirements are raised
Tian Zhixin, Liu Jun
doaj  

Optimizing Geometrical Parameters of the Flow Channel in the Root-irrigation Emitters

open access: yesGuan'gai paishui xuebao, 2022
【Objective】 The study is to present a new root-zone irrigation emitter and investigate the influence of the geometrical parameter of its spiral-hedge flow channel on hydraulic performance of the emitter.
ZHANG Jun, LI Lin
doaj   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

open access: yesAdvanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari   +4 more
wiley   +1 more source

HYDRAULIC CIRCULATION PERFORMANCE OF A CURVILINEAR MARINA

open access: yesCoastal Engineering Proceedings, 1980
An innovative coastal engineering concept has been developed to maximize the hydraulic circulation and water quality of dredged backshore harbors and boat basins. The concept represents a radical departure from the hydraulic design of existing artificial boat basins in that the basin geometry and entrance channel are primarily sized for hydraulic ...
openaire   +2 more sources

Microscale Patterning of Ultrahigh‐Viscosity Metallic‐Polymer Composites via Embedded Droplet Writing

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon   +4 more
wiley   +1 more source

Engineering & Performance of DuoTurbo: Microturbine with Counter-Rotating Runners [PDF]

open access: yes
Considering the nuclear phase-out strategy of several European countries and the future tendency to promote renewable energies, the exploitation of small hydropower sites (
Chevailler, S   +7 more
core   +2 more sources

Upcycling Keratin‐Based Textile Waste Into High‐Performance Hybrid Fibers Via Tuning the Interfacial Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai   +6 more
wiley   +1 more source

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