Results 71 to 80 of about 2,852,031 (256)

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe‐Inspired Midrib and Cuticle

open access: yesAdvanced Materials, EarlyView.
An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee   +8 more
wiley   +1 more source

WATER-REPELLING (HYDROPHOBIC) COMPOSITION FOR HYDRAULIC STRUCTURES

open access: yesNauka ta progres transportu, 2009
In the article the issues of protection of build constructions from the action of water environment by means of use of hydrophobic composition ZhF-4 are considered.
V. M. Shastun   +2 more
doaj  

Engineering Strain‐Stiffening Granular Hydrogels for 3D‐Printed Tissue‐Mimicry

open access: yesAdvanced Materials, EarlyView.
A 3D‐printable strain‐stiffening double‐network granular hydrogel (SDGH) enables independent, region‐specific tuning of toe (EToe) and heel (EHeel) moduli through control of microgel packing and network composition. This platform replicates tissue‐like nonlinear mechanics and allows fabrication of high‐fidelity, multilayered aortic valves with ...
Hyeokju Chae   +9 more
wiley   +1 more source

Research on Modeling, Simulation and Performance Improvement of Mechanical Feedback Digital Hydraulic Drive System for Three-Degree-of-Freedom Crane

open access: yesMachines
To mitigate the inadequate performance of traditional hydraulic systems, mechanical feedback-based digital hydraulic technology is applied to a 3-degree-of-freedom (3-DOF) crane.
Shenyang Zhang   +2 more
doaj   +1 more source

Use of quick-setting substances in watertight elements for rock material dams [PDF]

open access: yesИнженерно-строительный журнал, 2012
The article deals with the application of rock material dams with watertight element in the form of a screen or core in hydraulic engineering construction.The authors developed a new technology of watertight element creation.
Balzannikov M.I., Mikhasek A.A.
doaj  

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

open access: yesAdvanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss   +4 more
wiley   +1 more source

Mimicking Human Perspiration: A Layered Microfluidic Skin Phantom With Tunable Hydrodynamics

open access: yesAdvanced Materials Interfaces, EarlyView.
A multilayer microfluidic skin phantom based on thermoplastic elastomers is developed to mimic human perspiration. Spatially controlled wettability enables capillary‐driven transport and controlled droplet formation at the surface, resembling sweat gland behavior.
Chunyu Yang   +5 more
wiley   +1 more source

Dynamic Abrasion Resistance and Fractal-Based Damage Quantification in Fiber Rubber Concrete for Hydraulic Structures

open access: yesBuildings
Hydraulic concrete is subject to severe durability challenges when abraded by the high-speed flow of sandy water. Conventional concrete frequently needs to be repaired because of its high brittleness and insufficient abrasion resistance, while granular ...
Zhantao Li, Shuangxi Li, Chunmeng Jiang
doaj   +1 more source

An effective method of explosive compaction of hydraulic structures foundations

open access: yesИнженерно-строительный журнал, 2014
If an explosive compaction method is used, there are two ways to blast charges in each turn: simultaneous and consecutive. This paper presents the results of theoretical studies, field trials and pilot sealing in production conditions, proving the ...
O.P. Minaev
doaj   +1 more source

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