Results 61 to 70 of about 2,805,705 (290)

Numerical simulation of blowing ratio effects on film cooling on a gas turbine blade [PDF]

WIT Transactions on Modelling and Simulation, 2011
This article investigates the film cooling effectiveness and heat transfer in three regimes for a film-cooled gas turbine blade at the leading edge of the blade with 45 0 angle of injection. A Rolls Royce blade has been used in this study as a solid body with the blade cross section from Hub to Shroud varying with a degree of skewness.
Daud, H.A., Li, Q., Bég, O.A., Abdulghani, S.A.A.   +3 more
openaire   +2 more sources

Toward Pore‐Engineered 3D‐Printed Materials for Sorption Water Harvesting, Interfacial Evaporation, and Radiative Cooling

Advanced Materials, EarlyView.
Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski, Higgins M. Wilson, Abdallah Y. M. Ali, Jiaxing Xu, Ruzhu Wang, Primož Poredoš   +5 more
wiley   +1 more source

Inductively Expandable Supraparticles as Microscopic Force Generators for Remote Mechanical Actuation

Advanced Materials, EarlyView.
This study demonstrates the combination of magnetic nanoparticles and functional blowing agents into supraparticles. Upon induction heating, they actuate via rapid gas generation or extensive volume expansion. These supraparticles lift up to 25 000 times their own mass and rapidly open cured epoxy resins, providing a versatile strategy for fast micron ...
Leoni Luthardt, Stephan Müssig, Robert Luxenhofer, Karl Mandel   +3 more
wiley   +1 more source

Biohybrid Crawling Robot With Spiral‐Spring Backbone and Inclined Legs for Enhanced Locomotion

Advanced Materials, EarlyView.
We present a biohybrid crawling robot integrating a muscle ring with a flexible skeleton combining two complementary structural elements. The spiral‐spring backbone enables large‐amplitude bending without compromising axial stability, while outward‐inclined legs with unequal front–rear lengths effectively convert deformation into directional strides ...
Tomohiro Morita, Minghao Nie, Shoji Takeuchi   +2 more
wiley   +1 more source

Effect of blow moulding ratio on barrier properties of polylactide nanocomposite films

Polymer Testing, 2010
Abstract Results are presented of an investigation of the effect of blow moulding ratio of a nanocomposite polylactic acid (PLA) film, containing (i) a montmorillonite (MMT) nanofiller or (ii) MMT and poly(methyl methacrylate) (PMMA) as a modifier or (iii) MMT and poly(ethylene glycol) (PEG) as a plasticiser, on transmission of water vapour, oxygen ...
Marian Żenkiewicz, Józef Richert, Artur Różański   +2 more
openaire   +1 more source

Graphene Layers as Functional Biomaterials. From Fabrication and Characterization to Biological Applications

Advanced Materials Interfaces, EarlyView.
Graphene layers are fabricated on Cu foil and transferred onto glass substrates to form double‐ and multi‐layer G‐glass. Raman spectroscopy confirms structural integrity, while SEM and fluorescence microscopy reveal favorable adhesion and spreading of L‐929 fibroblast cells.
Mariana Mihaela Apostol, Issam Boukhoubza, Daniela Oprea, Iulia Corina Ciobotaru, Catalin Negrila, Ionut Enculescu, Ecaterina Andronescu, Teodor Adrian Enache, Elena Matei   +8 more
wiley   +1 more source

THE ECONOMIC AND BEHAVIORAL EFFECTS OF OFFERING FINANCIAL REWARDS FOR INTERNAL WHISTLE-BLOWING [PDF]

, 2013
I compare two approaches employers can use to induce workers to blow the whistle on internal misconduct such as co-worker theft. Employers can improve control over their resources and mitigate their substantial economic losses from internal misconduct ...
Stikeleather, Bryan
core  

Programmable Pneumatic Actuator System for a Bioinspired Artificial Colon

Advanced Materials Technologies, EarlyView.
A modular soft robotic colon simulator driven by programmable pneumatic actuation is developed to mimic physiological and pathological‐like motility patterns of the large intestine. Finite element–guided design and distributed control enable anatomically realistic deformation for peristalsis, segmentation, and mass movements, supporting capsule ...
Andrew Bickerdike, Bo Tian, Xizheng Fang, Zepeng Wang, Yang Liu, Lucy Adams, Shyam Prasad   +6 more
wiley   +1 more source

Active Flow Separation Control on a High-Lift Wing-Body Configuration - Part 1: Baseline Flow and Constant Blowing [PDF]

, 2011
This paper describes the influence of grid resolution and turbulence modeling for a 3D transport aircraft in high lift configuration with massive flap separation.
Breitenstein, Wiebke, Rudnik, Ralf, Kühn, Timo, Ciobaca, Vlad, Gölling, Burkhard   +4 more
core  

Biodegradable and Edible Milli‐Fluidic Logic Circuits

Advanced Materials Technologies, EarlyView.
Fully biodegradable and edible fluidic circuits are developed using gelatin‐based valves that operate at low pressure. Logic gates, a one‐bit memory, and a ring oscillator are demonstrated, showing that biodegradable materials can perform computation and control.
Shuhang Zhang, Bokeon Kwak, Özgün Ekrem, Dario Floreano   +3 more
wiley   +1 more source