Results 21 to 30 of about 293,941 (274)
Strategic Management Journal, EarlyView., 2023 Abstract Research Summary Using detailed plant‐ and individual‐level data from a major Japanese cotton spinning company in the early 20th century, we examine the within‐firm allocation of skilled human capital in conjunction with investment in physical capital, accompanying the firm's evolving strategic priorities.
Shotaro Yamaguchi +3 more
wiley +1 more source
Experimental Study of Coflow Propane—Air Laminar Diffusion Flames at Subatmospheric Pressures
Applied Sciences, 2021 The effect of pressure on the flame’s physical structure and soot formation of the coflow propane—air laminar diffusion flames was studied experimentally at subatmospheric pressures from 30 to 101 kPa.
Jiajie Yao, Jiahao Liu, Jian Wang
doaj +1 more source
Measurements of Soot Particulate Emissions of Ammonia-Ethylene Flames Using Laser Extinction Method
Energies, 2022 Ammonia (NH3) has emerged as an attractive carbonless fuel that can be co-fired with hydrocarbon fuel to reduce carbon dioxide emissions. To understand the influence of NH3 on soot formation when co-fired with hydrocarbons, the soot formation propensity ...
Cheng Tung Chong +3 more
doaj +1 more source
IEEE Photonics Journal, 2019 An optical method for measuring soot volume fraction, flame temperature, and concentration of combustion products in a diffusion flame based on time-division multiplexed tunable diode laser absorption spectroscopy technique is presented in this article ...
Haibin Cui +4 more
doaj +1 more source
Conditional moment closure modelling of soot formation in turbulent, non-premixed methane and propane flames [PDF]
, 2009 Presented are results obtained from the incorporation of a semi-empirical soot model into a first-order conditional moment closure (CMC) approach to modelling turbulent, non-premixed methane–air and propane–air flames.
Fairweather, M. +2 more
core +1 more source
Kinetic modeling of soot formation in premixed burner-stabilized stagnation ethylene flames at heavily sooting condition [PDF]
, 2018 A detailed kinetic mechanism of soot formation and oxidation is revised and extended to include temperature-dependent collision efficiencies. The collision efficiency for various particle size is studied and compared with experimental data and molecular ...
Faravelli, Tiziano +3 more
core +1 more source
A simultaneous measurement technique for soot temperature and volume fraction of sooting flames considering self-absorption through hyperspectral imaging [PDF]
Optics and Lasers in Engineering, 2022 Due to the complex optical properties of sooting flames, the accuracy of flame emission-based measurement techniques depends on an appropriate self-absorption correction strategy. Thus, this paper presents a novel iterative procedure to retrieve the soot temperature and volume fraction of sooting flames along with a self-absorption correction strategy ...
Yizhi Huang +5 more
openaire +1 more source
Energies, 2021 This article presents the results of computations on pilot-based turbulent methane/air co-flow diffusion flames under the influence of the preheated oxidizer temperature ranging from 293 to 723 K at two operating pressures of 1 and 3 atm. The focus is on
Subrat Garnayak +4 more
doaj +1 more source
Soot measurement in diluted methane diffusion flames by multi-pass extinction and laser-induced incandescence [PDF]
, 2018 Multi-pass cavity line-of-sight extinction (MPC-LOSE) and laser- induced incandescence (LII) techniques are deployed to measure the soot volume fraction in a series of nitrogen-diluted flames, which produce only ppm volume mass fractions of soot.
Gao, Y, Hochgreb, S, Tian, B, Zhang, C
core +1 more source