Results 61 to 70 of about 13,420 (264)

Bio‐Inspired Bidirectional Winding Origami With Programmable Modular Reconfigurability and Scalability

open access: yesAdvanced Science, EarlyView.
A bio‐inspired bidirectional‐winding origami platform enables scalable and programmable deployable structures. Double axial folding inspired by earwig hindwings and Flasher‐based hybridization create modular multilayer architectures with diverse attainable winding angles under fixed boundary conditions.
Wenyao Zhang   +5 more
wiley   +1 more source

Experimental investigation of the effect of sudden expansion on density current inertia and mixing hydrodynamics

open access: yesAin Shams Engineering Journal
This study examines how sudden expansions (ratios: 2.6, 1.56, 1.08) affect inertia and ambient water entrainment in density currents to evaluate their potential for flow control.
Pouya Ehdaei   +3 more
doaj   +1 more source

From Circuits to Symphonies: A Systems‐Engineering Blueprint for Multimicrobial Synthetic Biology

open access: yesAdvanced Science, EarlyView.
Engineering synthetic microbial consortia requires moving beyond intracellular genetic circuits toward coordinated multicellular design. A modular systems‐engineering framework is presented that integrates communication, temporal coordination, ecological structuring, and predictive modeling to guide application‐dependent consortium design ...
Miguel Fernández‐Niño   +9 more
wiley   +1 more source

Improved Direct Ink Writing of Liquid Metal Foams via Liquid Additives

open access: yesAdvanced Electronic Materials, EarlyView.
The ability to pattern liquid metal is useful for making soft electrical and thermal devices. Dispensing liquid metal from a nozzle naturally results in the formation of spheroidal droplets, making direct‐write printing challenging. Liquid metal foams containing pockets of air can extrude as filaments, albeit inconsistently.
Febby Krisnadi   +3 more
wiley   +1 more source

Flow characteristics and regime transitions in fluidization systems of Group C+ particles

open access: yesAIChE Journal, EarlyView.
Abstract Fine and ultrafine particles are attractive for fluidized bed reactors because their high surface area benefits catalytic processes, but their cohesive nature complicates regime characterization. Nanoparticle modulation improves the flowability of Group C powders, yet their bubbling to turbulent transition remains unclear.
Yue Song   +3 more
wiley   +1 more source

Thermodynamic Modelling of Supersonic Gas Ejector with Droplets

open access: yesEntropy, 2017
This study presents a thermodynamic model for determining the entrainment ratio and double choke limiting pressure of supersonic ejectors within the context of heat driven refrigeration cycles, with and without droplet injection, at the constant area ...
Sergio Croquer   +2 more
doaj   +1 more source

Segmented Therapeutic Delivery via Acoustic Microbubble Relay

open access: yesAdvanced Intelligent Systems, EarlyView.
An acoustically driven, modular segmented delivery system is presented to overcome mechanical limitations of conventional microcatheters. Oscillating microbubbles generate directional streaming that enables continuous, targeted transport across open, angled segments.
Lei Wang   +6 more
wiley   +1 more source

Numerical Study for the Effect of Secondary Fluid Inlet Geometrical Parameters on the Performance of Water-Steam Two-Phase Ejector used for Desalination System

open access: yesDiyala Journal of Engineering Sciences
This study investigates the effect of secondary fluid inlet geometrical parameters on the performance of a two-phase water-steam ejector operating in the subsonic flow regime.
Mustafa S. Mahdi, Akram W. Ezzat
doaj   +1 more source

Characterization of the Effects of Jet Radial Position on Entrainment Ratio in a Subsonic Ejector

open access: yes, 2022
The work investigated an ejector-based intake, the Atlantis Intake System (AIS), in static conditions. A control volume (CV) analysis was presented and used to estimate the entrainment ratios of the AIS. The CV analysis also estimated momentum loss due to the jet’s interaction with the mixing chamber walls.
openaire   +1 more source

The Risk of Cardiovascular Diseases for Shift Workers in the Prospective Heinz Nixdorf Recall Study

open access: yesAmerican Journal of Industrial Medicine, EarlyView.
ABSTRACT Background Shift work can disrupt circadian rhythms and is postulated to play a role in cardiovascular diseases (CVD). In the German prospective population‐based Heinz Nixdorf Recall Study, we analyzed longitudinal associations between shift work and night‐shift work with CVD.
Katharina Wichert   +7 more
wiley   +1 more source

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