Results 61 to 70 of about 450,897 (302)

Imaging of solid flow in a gravity flow rig using infra-red tomography [PDF]

open access: yes, 2005
Information on flow regimes is vital in the analysis and measurement of industrial process flow. Almost all currently available method of measuring the flow of two-component mixtures in industrial pipelines endeavors to average a property of the flow ...
Md. Yunus, Mohd. Amri
core  

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

STUDY OF HORIZONTAL LIGHT PIPE WITH DYNAMIC REFLECTOR IN THE TROPICS

open access: yesDimensi: Journal of Architecture and Built Environment, 2022
Horizontal light pipe (HLP) is a sustainable strategy for improving daylighting quality in buildings. The reflector is one of the HLP elements that collect and direct the incoming light in the pipe.
Livia Hariyanto   +2 more
doaj   +1 more source

Archeo‐Inspiration from the Cultural History of Glass: Historic Accounts, Anecdotes and Hard Facts as Challenges to Modern Material Science

open access: yesAdvanced Materials, EarlyView.
Glass, historically valued for its purity and durability, has long inspired artists and societies. This article introduces the concept of “Archeo‐Inspiration”, drawing on cultural and historical contexts of glass to guide future material innovations.
Eva von Contzen   +3 more
wiley   +1 more source

Study on Monitoring Rock Burst through Drill Pipe Torque

open access: yesShock and Vibration, 2015
This paper presents a new method to identify the danger of rock burst from the response of drill pipe torque during drilling process to overcome many defects of the conventional volume of drilled coal rubble method.
Zhonghua Li   +3 more
doaj   +1 more source

Multi‐scale Engineered Vasculature and Hierarchical Porosity via Volumetric Bioprinting‐Guided Photopolymerization‐Induced Phase Separation

open access: yesAdvanced Materials, EarlyView.
Vascularization in bioprinted hydrogels is limited by nanoscale porosity in hydrogel bionks. Volumetric bioprinting of gelatin–norbornene phase‐separating hydrogels permits to create centimeter‐scale constructs featuring interconnected multi‐scale porosity. Light dose gradients result in spatially controlled pore dimensions. Capillary‐scale vessels are
Oksana Y. Dudaryeva   +8 more
wiley   +1 more source

Comparative study on the performance of butt fusion-welding processes for nuclear safety class large-diameter thick-walled PE pipes

open access: yesNuclear Engineering and Technology
New technologies in polymer synthesis and pipe extrusion equipment have led to the commercialization of high-performance, large-diameter, thick-wall high density polyethylene (HDPE) pipes.
Zhenchao Wang   +6 more
doaj   +1 more source

Advanced Optical Daylighting Systems: Light Shelves and Light Pipes [PDF]

open access: yesJournal of the Illuminating Engineering Society, 1997
We present two perimeter daylighting systems that passively redirect beam sunlight further from the window wall using special optical films, an optimized geometry, and a small glazing aperture. The objectives of these systems are (1) to increase daylight illuminance levels at 4.6-9.1 m (15-30 ft) from the window aperture with minimum solar heat gains ...
Beltran, Liliana   +2 more
openaire   +1 more source

A physiological measure of shifting connections in the Rana pipiens retinotectal system [PDF]

open access: yes, 1986
The retinotectal connections of developing Rana tadpoles and froglets have been studied using light-pipe techniques to directly assay the pattern of the projection from the retina to the tectum.
Fraser, Scott E., Hunt, R. Kevin
core  

Unscreened water-diversion pipes pose an entrainment risk to the threatened green sturgeon, Acipenser medirostris. [PDF]

open access: yes, 2014
Over 3,300 unscreened agricultural water diversion pipes line the levees and riverbanks of the Sacramento River (California) watershed, where the threatened Southern Distinct Population Segment of green sturgeon, Acipenser medirostris, spawn.
Bandeh, Hossein   +9 more
core   +4 more sources

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