scholarly journals A source-independent empirical correction procedure for the fast mobility and engine exhaust particle sizers

2015 ◽  
Vol 100 ◽  
pp. 178-184 ◽  
Author(s):  
Naomi Zimmerman ◽  
Cheol-Heon Jeong ◽  
Jonathan M. Wang ◽  
Manuel Ramos ◽  
James S. Wallace ◽  
...  
Keyword(s):  
Correction Procedure ◽  
Engine Exhaust ◽  
Empirical Correction

Lateral resolution of the electron microbeam analysis

1978 ◽  
Vol 36 (1) ◽  
pp. 542-543
Author(s):  
H.J. Dudek
Keyword(s):  
Quantitative Analysis ◽  
Depth Resolution ◽  
Lateral Resolution ◽  
Cylindrical Particle ◽  
Correction Procedure ◽  
X Ray ◽  
Element Concentrations ◽  
Microbeam Analysis ◽  
The Matrix

The chemical inhomogenities in modern materials such as fibers, phases and inclusions, often have diameters in the region of one micrometer. Using electron microbeam analysis for the determination of the element concentrations one has to know the smallest possible diameter of such regions for a given accuracy of the quantitative analysis.In th is paper the correction procedure for the quantitative electron microbeam analysis is extended to a spacial problem to determine the smallest possible measurements of a cylindrical particle P of high D (depth resolution) and diameter L (lateral resolution) embeded in a matrix M and which has to be analysed quantitative with the accuracy q. The mathematical accounts lead to the following form of the characteristic x-ray intens ity of the element i of a particle P embeded in the matrix M in relation to the intensity of a standard S

Bence-albee after 25 years: A new superior α-factor correction procedure for the quantitative analysis of oxides and silicates

1992 ◽  
Vol 50 (2) ◽  
pp. 1744-1745
Author(s):  
John T. Armstrong
Keyword(s):  
Quantitative Analysis ◽  
Electron Microprobe ◽  
Binary Systems ◽  
Correction Procedure ◽  
Geological Samples ◽  
The Past ◽  
Large Matrix ◽  
Computational Speed ◽  
Microprobe Data ◽  
Geological Sciences

One of the most cited papers in the geological sciences has been that of Albee and Bence on the use of empirical " α -factors" to correct quantitative electron microprobe data. During the past 25 years this method has remained the most commonly used correction for geological samples, despite the facts that few investigators have actually determined empirical α-factors, but instead employ tables of calculated α-factors using one of the conventional "ZAF" correction programs; a number of investigators have shown that the assumption that an α-factor is constant in binary systems where there are large matrix corrections is incorrect (e.g, 2-3); and the procedure’s desirability in terms of program size and computational speed is much less important today because of developments in computing capabilities. The question thus exists whether it is time to honorably retire the Bence-Albee procedure and turn to more modern, robust correction methods. This paper proposes that, although it is perhaps time to retire the original Bence-Albee procedure, it should be replaced by a similar method based on compositiondependent polynomial α-factor expressions.

CRUCIBLE 347

Alloy Digest ◽  
1983 ◽  
Vol 32 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Aircraft Engine ◽  
Heat Treating ◽  
Nickel Steel ◽  
Annealed Condition ◽  
Engine Exhaust ◽  
Cold Worked ◽  
Specialty Metals

Abstract CRUCIBLE F347 is a non-hardenable austenitic chromium-nickel steel that is particularly adaptable for use at temperatures between 800 and 1650 F. It is non-magnetic in the annealed condition but is slightly magnetic in the cold-worked condition. Among its many applications are aircraft-engine exhaust manifolds, boiler shells and high-temperature handling equipment. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-436. Producer or source: Crucible Specialty Metals Division, Colt Industries.

CRUCIBLE 321

Alloy Digest ◽  
1983 ◽  
Vol 32 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Aircraft Engine ◽  
Heat Treating ◽  
Nickel Steel ◽  
Annealed Condition ◽  
Engine Exhaust ◽  
Expansion Joints ◽  
Temperature Performance ◽  
Cold Worked ◽  
Specialty Metals

Abstract CRUCIBLE 321 is a non-hardenable austenitic chromium-nickel steel which is particularly adaptable for parts fabricated by welding without postweld annealing for use at temperatures between 800 and 1500 F. This grade is non-magnetic in the annealed condition but is slightly magnetic when cold worked. Among its many applications are aircraft-engine exhaust manifolds, furnace parts and expansion joints. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-426. Producer or source: Crucible Specialty Metals Division, Colt Industries.

FLAMMABLE VAPOR IGNITION BY ENGINE EXHAUST SYSTEMS

2002 ◽  
Vol 11 (4) ◽  
pp. 335-348
Author(s):  
GREGORY J. HAUSSMANN ◽  
LAWRENCE M. MATTA
Keyword(s):  
Engine Exhaust ◽  
Exhaust Systems

Career fire hall exposures to diesel engine exhaust in Ontario, Canada

2019 ◽  
Vol 17 (1) ◽  
pp. 38-46 ◽  
Author(s):  
JuWon Chung ◽  
Paul A. Demers ◽  
Sheila Kalenge ◽  
Tracy L. Kirkham
Keyword(s):  
Diesel Engine ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust
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