نتایج جستجو برای: flame holder

تعداد نتایج: 25024  

In this paper, by using a new concept of strong convexity, we obtain sufficient conditions for Holder continuity of the solution mapping for a parametric weak vector equilibrium problem in the case where the solution mapping is a general set-valued one. Without strong monotonicity assumptions, the Holder continuity for solution maps to parametric weak vector optimization problems is discussed.

Journal: :Nordisk administrativt tidsskrift 2021

Den stadige teknologiske udvikling skaber løbende nye muligheder for offentlige myndigheders brug af digital teknologi til at understøtte deres opgaveløsning, uden dette nødvendigvis er udtømmende reguleret i forvaltningsretlige retskilder som forvaltningslov og ombudsmandspraksis mv. I denne artikel kombinerer vi en retsvidenskabelig analyse med kvalitativ undersøgelse praksis hos danske myndi...

2012
Xianfeng Chen Ying Zhang

To reveal the inner mechanism of gas explosion dynamic behavior affected by gas equivalent concentration, a high speed Schlieren image system and flow field measurement technology was applied to record the gas explosion flame propagation and flame structure transition. The results show that a flame front structure transition occurs, followed by a flame accelerating propagation process. The lami...

2000
Janet Cahill

The Olympic flame and torch are significant symbols of the Olympic Games and are important in linking the general public with the festival. They are internationally recognized symbols, particularly important at the Opening and Closing Ceremonies. “It is through the opening and closing ceremonies and the torch relay that the Olympiad must distinguish itself from another series of world champions...

Journal: :Environmental pollution 2016
Sum Chi Lee Ed Sverko Tom Harner Karla Pozo Enzo Barresi JoAnne Schachtschneider Donna Zaruk Maryl DeJong Julie Narayan

A retrospective analysis was conducted on air samples that were collected in 2005 under the Global Atmospheric Passive Sampling (GAPS) Network around the time period when the Stockholm Convention on Persistent Organic Pollutants came into force. Results are presented for several new flame retardants, including hexabromocyclododecane (HBCD), which was recently listed under the Convention (2013)....

Journal: :Applied microbiology 1969
H Almgren

A device has been developed to increase and control the cell concentration in continuous culture fermentation reactors. This cell control device, used to study mixed culture methane fermentations, was developed because it is necessary to obtain cell concentrations much higher than can be obtained in a single stage reactor by adjustment of residence time or substrate concencentration. Designed a...

2011
A. J. Aspden J. B. Bell S. E. Woosley

In previous studies, we examined turbulence-flame interactions in carbonburning thermonuclear flames in Type Ia supernovae. In this study, we consider turbulence-flame interactions in the trailing oxygen flames. The two aims of the paper are to examine the response of the inductive oxygen flame to intense levels of turbulence, and to explore the possibility of transition to detonation in the ox...

2001
S. D. TSE L. HE C. K. LAW

A computational study has been conducted to determine the critical conditions for the transition from localized flame ignition and propagation to the establishment of a flame ball. Lean H2/air mixtures are investigated using a time-dependent, spherically symmetric code with detailed chemistry, transport, and radiation submodels. Results show that outwardly propagating spherical flames can be ig...

2002
Joseph F. Grcar

In this paper we study the behavior of a premixed turbulent methane flame in three dimensions using numerical simulation. The simulations are performed using an adaptive time-dependent low Mach number combustion algorithm based on a second-order projection formulation that conserves both species mass and total enthalpy. The species and enthalpy equations are treated using an operator-split appr...

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