Results 91 to 100 of about 40,291 (312)

Autoignition in nonpremixed flow [PDF]

open access: yes, 1993
The objective of this investigation has been to improve understanding of autoignition processes in nonpremixed flow fields of the types encountered in Diesel-engine ignition, through theoretical analyses that employ asymptotic methods of applied ...
Liñán Martínez, Amable   +1 more
core   +1 more source

Flame Instability and Transition to Detonation in Supersonic Reactive Flows

open access: yes, 2017
Multidimensional numerical simulations of a homogeneous, chemically reactive gas were used to study ignition, flame stability, and deflagration-to-detonation transition (DDT) in a supersonic combustor.
Center   +4 more
core   +1 more source

Oxides and oxide superconductors :

open access: yes, 1991
Using both measurements and modeling, the elastic and related properties of some oxides and oxide superconductors were studied. The polycrystal elastic constants were measured using a MHz-frequency pulse-echo method between 295 and 4 K and corrected to the void-free state by using a model for a composite material containing spherical particles.
Ming Lei, Hassel Ledbetter
openaire   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

Isolation, purification and characterization of an anaerobic methane oxidizer

open access: yes浙江大学学报. 农业与生命科学版, 2002
An anaerobic bacterial isolate capable of oxidizing methane anaerobically was isolated from a rice soil developed from coastal saline soil and was named Strain AMOB3.
MIN Hang   +4 more
doaj   +1 more source

Some experimental results on the L-star instability of metallized composite propellants [PDF]

open access: yes, 1975
Experimental results are reported on the Lstar instability characteristics of three AP I composite propellants. The metal content of the propellants is 2%, 16%, and 16%.
Kumar, R. N.
core  

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb   +6 more
wiley   +1 more source

Effects of Steam Addition to the Oxidizer on the Combustion Performance and Emissions of Coke Oven Gas: A Numerical Study

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi
This study investigates the effects of adding steam to the oxidizer on the combustion behavior of coke oven gas through numerical simulations. The analysis used the commercial computational fluid dynamics (CFD) software Ansys Fluent. The results obtained
Osman Kümük
doaj   +1 more source

Process for the leaching of AP from propellant [PDF]

open access: yes, 1980
A method for the recovery of ammonium perchlorate from waste solid rocket propellant is described wherein shredded particles of the propellant are leached with an aqueous leach solution containing a low concentration of surface active agent while ...
Mcintosh, M. J., Shaw, G. C.
core   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

open access: yesAdvanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy