scholarly journals Review of Artificial Abrasion Test Methods for PV Module Technology

2016 ◽  
Author(s):  
David C. Miller ◽  
Matt T. Muller ◽  
Lin J. Simpson
Keyword(s):  
Test Methods ◽  
Abrasion Test ◽  
Pv Module

Experimental Study of Ice Friction and Abrasion Test Methods for Polar Paint

2019 ◽  
Vol 56 (6) ◽  
pp. 532-540 ◽  
Author(s):  
Seong-Rak Cho ◽  
Eun-Jin Oh ◽  
Cheol-Hee Kim ◽  
Jae-Man Lee ◽  
Sung-Pyo Kim
Keyword(s):  
Experimental Study ◽  
Test Methods ◽  
Abrasion Test ◽  
Ice Friction

Investigation into Laboratory Abrasion Test Methods for Pervious Concrete

2013 ◽  
Vol 25 (7) ◽  
pp. 886-892 ◽  
Author(s):  
Qiao Dong ◽  
Hao Wu ◽  
Baoshan Huang ◽  
Xiang Shu ◽  
Kejin Wang
Keyword(s):  
Test Methods ◽  
Pervious Concrete ◽  
Abrasion Test

Study on Turbine Blade Abrasion Mechanism and Abrasion Resistance Performance Testing Machine

2012 ◽  
Vol 621 ◽  
pp. 206-210
Author(s):  
Hao Ping Li ◽  
Feng Li ◽  
Zhi Fan Fang ◽  
Yong Qing Chen
Keyword(s):  
Testing Machine ◽  
Performance Testing ◽  
Test Methods ◽  
Design Parameters ◽  
Abrasion Test ◽  
Design Basis ◽  
Turbine Component ◽  
Indicator Data ◽  
Resistance Performance ◽  
Abrasion Testing

This paper studied the flow indicators affecting abrasion through turbine component surface, analyzed the indicator data of major rivers, which provided design parameters and design basis of the abrasion test equipment; and studied abrasion test methods of turbine overflow surface, determined the rotating-jet mode abrasion test principle and design parameters of the rotating-jet abrasion testing machine

Laboratory proficiency in susceptibility testing of Helicobacter pylori using agar dilution and E test methods

2001 ◽  
Vol 120 (5) ◽  
pp. A586-A587
Author(s):  
L BEST ◽  
S JO ◽  
V VANZANTEN ◽  
D HALDANE ◽  
V LOO ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Susceptibility Testing ◽  
Test Methods ◽  
Agar Dilution

Scientific and Standardization Committee Communications Comparison of Test Methods for the Lupus Anticoagulant: International Survey on Lupus Anticoagulants-I (ISLA-1)

1990 ◽  
Vol 64 (03) ◽  
pp. 478-484 ◽  
Author(s):  
Thomas Exner ◽  
Douglas A Triplett ◽  
David A Taberner ◽  
Margaret A Howard ◽  
E Nigel Harris
Keyword(s):  
Lupus Anticoagulant ◽  
Test Methods ◽  
Positive Sample ◽  
Direct Proportion ◽  
Clotting Time ◽  
Preliminary Screening ◽  
Activated Platelets ◽  
Tissue Thromboplastin ◽  
Kaolin Clotting Time ◽  
Induced Defects

SummarySix lyophilized plasma samples were sent to 20 “expert” laboratories for assessment of lupus anticoagulant (LA). Four samples contained pooled LA of graded potency mixed with aged normal plasma. One contained LA plus cephalin phospholipid and one contained a nonspecific venom anticoagulant. Sixteen methods were used overall with some participants using up to 8 methods. Results were scored in regard to the known potencies of LA in the samples and other known induced defects.Activated partial thromboplastin time (APTT) tests used by most participants for preliminary screening were relatively sensitive, but non-specific. Platelet or phospholipid neutralization procedures (PNP) appeared to be sensitive and specific but showed a non-linear response to increased LA content. Kaolin clotting time (KCT) tests showed the most sensitive response to increased LA content but the weaker LA were not scored as abnormal by most laboratories as the samples may have contained platelet fragments. Other commonly used tests such as the tissue thromboplastin inhibition (TTI) test and the dilute Russell’s viper venom test (DRVVT) were carried out somewhat inconsistently. The variability in performance of tests in different laboratories indicates that standardization of methodology is urgently required.Generally it seemed that most clotting tests were “bypassed” by the addition of phospholipid to a known LA-positive sample in apparently direct proportion to their sensitivity. Sample preparation, especially prevention of contamination with activated platelets is a vital preliminary part in the assay of LA.

A method for measuring the in-plane compressive strength and the compression behavior of coating layers

TAPPI Journal ◽  
2011 ◽  
Vol 10 (7) ◽  
pp. 29-34
Author(s):  
TEEMU PUHAKKA ◽  
ISKO KAJANTO ◽  
NINA PYKÄLÄINEN
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Calcium Carbonate ◽  
Coating Layer ◽  
Test Methods ◽  
Coating Films ◽  
Precipitated Calcium Carbonate ◽  
Coating Color ◽  
Mineral Coatings ◽  
Styrene Butadiene

Cracking at the fold is a quality defect sometimes observed in coated paper and board. Although tensile and compressive stresses occur during folding, test methods to measure the compressive strength of a coating have not been available. Our objective was to develop a method to measure the compressive strength of a coating layer and to investigate how different mineral coatings behave under compression. We used the short-span compressive strength test (SCT) to measure the in-plane compressive strength of a free coating layer. Unsupported free coating films were prepared for the measurements. Results indicate that the SCT method was suitable for measuring the in-plane compressive strength of a coating layer. Coating color formulations containing different kaolin and calcium carbonate minerals were used to study the effect of pigment particles’ shape on the compressive and tensile strengths of coatings. Latices having two different glass transition temperatures were used. Results showed that pigment particle shape influenced the strength of a coating layer. Platy clay gave better strength than spherical or needle-shaped carbonate pigments. Compressive and tensile strength decreased as a function of the amount of calcium carbonate in the coating color, particularly with precipitated calcium carbonate. We also assessed the influence of styrene-butadiene binder on the compressive strength of the coating layer, which increased with the binder level. The compressive strength of the coating layer was about three times the tensile strength.

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