Results 81 to 90 of about 35,968 (203)

High Thermal Conductivity NARloy-Z-Diamond Composite Liner for Advanced Rocket Engines [PDF]

NARloy-Z (Cu-3Ag-0.5Zr) alloy is state-of-the-art combustion chamber liner material used in liquid propulsion engines such as the RS-68 and RS-25. The performance of future liquid propulsion systems can be improved significantly by increasing the heat ...
Bhat, Biliyar, Greene, Sandra
core   +1 more source

Internally stressed polymeric composite/metal cylinders: Manufacturing, testing and quality verifying by simplified procedure [PDF]

Scientific Technical Review, 2017
In this paper the details about manufacturing of multilayer cylinders consisting of metal liner (obtained by standard machining procedures) and polymeric composite material (produced by filament winding technology) are presented. For multilayer cylinders
Radulović Jovan, Žegarac Nikša
doaj  

Open Cell Conducting Foams for High Synchrotron Radiation Beam Liners

, 2014
The possible use of open-cell conductive foams in high synchrotron radiation particle accelerator beam liners is considered. Available materials and modeling tools are reviewed, potential pros and cons are discussed, and preliminary conclusions are drawn.
Petracca, Stefania, Stabile, Arturo
core   +2 more sources

A Comparison of Star Formation Rates by Different Tracers in Nearby Galaxies

The Astrophysical Journal Supplement Series
We utilize a large sample of ∼113,000 galaxies ( z < 0.3) from the Sloan Digital Sky Survey with high-quality data to compare star formation rates (SFRs) across multiple diagnostic methods and examine their connection to the strength of active galactic ...
Huynh Anh N. Le, Jong-Hak Woo, Yongquan Xue, Ashraf Ayubinia, Changseok Kim, Xiaozhi Lin   +5 more
doaj   +1 more source

Heat resistant protective hand covering [PDF]

, 1984
The heat resistant, protective glove is made up of first and second shell sections which define a palm side and a backside, respectively. The first shell section is made of a twill wave fabric of a temperature-resistant aromatic polyamide fiber.
Arons, I. J., Sidman, K. R.
core   +1 more source

3-year randomized clinical trial to evaluate the performance of posterior composite restorations lined with ion-releasing materials

Scientific Reports
To evaluate the impact of using ion-releasing liners on the 3-year clinical performance of posterior resin composite restorations after selective caries excavation with polymer burs. 20 patients were enrolled in this trial.
Basma Ahmed, Ramy Ahmed Wafaie, Hamdi H. Hamama, Salah Hasab Mahmoud   +3 more
doaj   +1 more source

Impact response of filament-wound structure with polymeric liner: Experimental and numerical investigation (Part-A)

Results in Engineering
Filament wound pipelines and Type IV composite pressure vessels (CPVs) constitute polymeric liners and are extensively used to transport and store petroleum products, hydrogen, and compressed natural gas (CNG).
Mohammad Azeem, Hamdan H. Ya, Mohammad Azad Alam, Masdi Muhammad, Salit M Sapuan, Mukesh Kumar, Lokman Gemi, Ammar Maziz, Ahmad Rasdan Ismail, Sanan H. Khan   +9 more
doaj   +1 more source

Recent advances in lightweight, filament-wound composite pressure vessel technology [PDF]

A review of recent advances is presented for lightweight, high performance composite pressure vessel technology that covers the areas of design concepts, fabrication procedures, applications, and performance of vessels subjected to single cycle burst and
Lark, R. F.
core   +1 more source

Vacuum jacketed composite propulsion feedlines for cryogenic launch and space vehicles, volume 1 [PDF]

Thin metallic liners that provide leak-free service in cryogenic propulsion systems are overwrapped with a glass-fiber composite that provides strength and protection from handling damage.
Dulaigh, D. E., Hall, C. A., Laintz, D. J., Spond, D. E.   +3 more
core   +1 more source

Weight Minimization of Type 2 Composite Pressure Vessel for Fuel Cell Electric Vehicles Considering Mechanical Safety with Kriging Metamodel

Machines
In recent years, increased sales of fuel cell electric vehicles (FCEVs) have required composite overwrapped pressure vessel (COPV) designs to be lightweight and allow safe high-pressure hydrogen storage.
Jaewook An, Hamin Lee, Chang-Wan Kim
doaj   +1 more source