Results 131 to 140 of about 57,609 (169)
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In-Cylinder Equivalence Ratio Measurements in an EGR Equipped Engine
Journal of Engineering for Gas Turbines and Power, 2010A single-cylinder natural gas fueled engine equipped with an exhaust gas recirculation (EGR) system was ignited using a laser. The broadband emission from the spark kernel was spectrally resolved, and the peaks corresponding to Hα, N, and O atoms were measured for a range of conditions with global equivalence ratios ranging between 0.6 and 1.0 and for ...
Sreenath B. Gupta +3 more
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Equivalence ratio variation and combustion instability in hybrid rocket
Journal of Mechanical Science and Technology, 2019In this paper, a series of combustion tests using PMMA/O2 was conducted to examine the initiating characteristics of low frequency instability (LFI) in relation to the changes in both flow and combustion conditions. By selecting parameters such as the oxidizer mass flow rate, fuel grain length, and mixing ratio of mixture oxidizer composed of oxygen ...
Dong Eun Lee, Changjin Lee
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Equivalence ratio and constriction effects on RBCC thrust augmentation
Acta Astronautica, 2011Abstract A theoretical analysis of a variable area rocket based combined cycle engine with and without simultaneous mixing and combustion is presented. The flowfield is solved using a steady, quasi-one-dimensional, inviscid control volume formulation with combustion effects included via a generalized equilibrium calculation.
M. Koupriyanov, J. Etele
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Local effective length factor in the equivalent slenderness ratio
Canadian Journal of Civil Engineering, 1995The Canadian Standard S16.1 specifies an equivalent slenderness ratio to be used when determining the compressive resistance of a built-up member when buckling occurs about an axis perpendicular to the interconnectors. This equivalent slenderness ratio is the square root of the sum of the squares of the slenderness ratio of the built-up member acting ...
Murray C. Temple, Ghada Elmahdy
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Solving velocity ratio of different mechanisms for equivalent models
2010 International Conference on Mechanic Automation and Control Engineering, 2010Equivalent model is always used in single degree of freedom mechanism system, during analysis the dynamics or kinematics questions. Velocity ratio is the key question among the solving process. Three methods were introduced, based on the typical mechanism systems, such as linkage mechanism, gear mechanism and cam mechanism.
null Ani Luo +2 more
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Testing for equivalence of variances using Hartley's ratio
Canadian Journal of Statistics, 2010AbstractHartley's test for homogeneity of k normal‐distribution variances is based on the ratio between the maximum sample variance and the minimum sample variance. In this paper, the author uses the same statistic to test for equivalence of k variances.
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Equivalent Compression Curve for Clay–Sand Mixtures Using Equivalent Void-Ratio Concept
International Journal of Geomechanics, 2023Yiwen Zeng +3 more
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Potency ratio, clinical equivalence, and wasting ratio estimate of different glucocorticoids
Calcified Tissue International, 1991B, Imbimbo, S, Milani
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The Influence of Dosimetry on Earlier Damage Equivalence Ratios
IEEE Transactions on Nuclear Science, 1975Since it was first noted that the experimental damage equivalence ratios for different neutron spectra obtained from change in transistor parameter behavior did not agree with the calculated ratios based on damage to silicon, an explanation has been sought for this apparent discrepancy.
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Performance Score and Equivalent Ratio of Reserve Resources
2022 IEEE 5th International Electrical and Energy Conference (CIEEC), 2022Jing Zhou +4 more
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