Results 61 to 70 of about 171,718 (354)

On the structure and stability of magnetic tower jets [PDF]

, 2012
Modern theoretical models of astrophysical jets combine accretion, rotation, and magnetic fields to launch and collimate supersonic flows from a central source. Near the source, magnetic field strengths must be large enough to collimate the jet requiring
A. Ciardi, A. Frank, Blackman, Blandford, Carroll-Nellenback, Ciardi, Cunningham, E. G. Blackman, Frank, Frank, Frank, Hardee, Hartigan, Hartigan, Hartigan, Huarte-Espinosa, J. P. Chittenden, Kato, Konigl, Krasnopolsky, Krasnopolsky, Lery, Li, Livio, Lovelace, Lynden-Bell, M. Huarte-Espinosa, Matt, Mohamed, Morsony, Nakamura, Ohsuga, Ohsuga, Ouyed, P. Hartigan, Pudritz, Reipurth, S. V. Lebedev, Shafranov, Shibata, Takeuchi, Ustyugova, Yirak   +42 more
core   +3 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Experimental study on the influence of the Buoyancy number on heat transfer in a pin-fins channel under rotational conditions

Case Studies in Thermal Engineering
The trailing edge of turbine blades poses a significant challenge for research in internal cooling technology. In previously published studies on heat transfer coefficient (HTC), the limitations of experimental testing techniques have hindered the ...
Xuejiao Zhang, Ruquan You, Haiwang Li, Changlin Pi, Song Liu   +4 more
doaj   +1 more source

Real-time simulation of jet engines with digital computer. 1: Fabrication and characteristics of the simulator [PDF]

The fabrication and performance of a real time jet engine simulator using a digital computer are discussed. The use of the simulator in developing the components and control system of a jet engine is described.
Hashimoto, T., Ichikawa, H., Koshinuma, T., Nishio, K., Ohata, T., Sugiyama, N.   +5 more
core   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source

Understanding the Chemical and Electronic Properties of Sub‐Monolayer TiO2 on High Surface Area Silica for Jet Fuel Synthesis Applications

Advanced Functional Materials, EarlyView.
Sub‐monolayer titania grafted onto mesoporous silica enables solvent‐free photocatalytic upgrading of furfural and cyclopentanone into jet fuel precursors. Advanced spectroscopic methods reveal tunable surface speciation, acidity, and bandgaps, enhancing catalytic efficiency.
Mark A. Isaacs, Charalampos Drivas, Arthur Graf, Sasha Kroon, Santosh Kumar, Junxi Liu, Antonio Torres‐Lopez, Cameron Price, Edward Garland, Ines Lezcano‐Gonzalez, Christopher. M. A. Parlett, Vannia C. dos Santos‐Durndell, Lee J. Durndell   +12 more
wiley   +1 more source

Characterization of Particle Emissions from GTM 400 Fueled with HEFA-SPK Blends

Energies
As aviation is a rapidly growing sector, many actions must be taken to significantly reduce the emission of harmful gases such as CO2, CO, HC, NOx, and particulate matter (PM).
Paula Kurzawska-Pietrowicz, Remigiusz Jasiński   +1 more
doaj   +1 more source

Sweeping jet impingement heat transfer on a simulated turbine vane leading edge

Journal of the Global Power and Propulsion Society, 2018
With the development of additive manufacturing technology, it is now possible to design complex and integrated internal cooling architecture for a gas turbine engine.
Mohammad A. Hossain, Lucas Agricola, Ali Ameri, James W. Gregory, Jeffrey P. Bons   +4 more
doaj   +1 more source

Jet Engines and Fuels

Journal of the Fuel Society of Japan, 1953
筆者は, まずジェット・エンヂンの利点, 往復エンヂンとの相蓮, 性能, 種類などについて説明せる後, その燃料について, 欧米の実用機使用燃料の規格, 燃焼特性, 高度による揮発性の差異, 流動性と濾過性, 始動性とカーボン附着性などについて述べ, わが国においてその規格範囲を決定する場合, 多くの基本的, 実用的研究炉必要であることを指摘した。
openaire   +2 more sources

Design, fabrication and testing of small scale turbine jet engine [PDF]

, 2012
A turbine jet engine comprises of four main parts, which are a compressor, a combustion chamber, a turbine and an exhaust nozzle. Turbine jet engine operates at an open cycle called a jet propulsion cycle.
Mohamad Ridhwan, Raja Mohd
core