Electric pulp test threshold responses in healthy incisors, canines, premolars and molars

2017 ◽  
Vol 44 (1) ◽  
pp. 54-59
Author(s):  
Marija Šimović ◽  
Ivan Pavušek ◽  
Ana Ivanišević Malčić ◽  
Silvana Jukić ◽  
Goranka Prpić Mehičić ◽  
...  
Keyword(s):  
Test Threshold

Effects of inducer duration and separation on test threshold

1974 ◽  
Vol 14 (1) ◽  
pp. 83-87 ◽  
Author(s):  
Rockefeller S.L. Young ◽  
A.L. Diamond ◽  
Robert E. Cole
Keyword(s):  
Test Threshold

scholarly journals Optimization of 13 C-urea breath test threshold levels for the detection of Helicobacter pylori infection in a national referral laboratory

2018 ◽  
Vol 33 (2) ◽  
pp. e22674 ◽  
Author(s):  
Tsachi Tsadok Perets ◽  
Rachel Gingold-Belfer ◽  
Haim Leibovitzh ◽  
David Itskoviz ◽  
Hemda Schmilovitz-Weiss ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Breath Test ◽  
Urea Breath Test ◽  
Helicobacter Pylori Infection ◽  
Threshold Levels ◽  
Test Threshold

Effects of Inducing Luminance and Area on Test-Threshold Luminance

1965 ◽  
Vol 21 (3) ◽  
pp. 779-782 ◽  
Author(s):  
Shuko Torii ◽  
Yasuko Uemura
Keyword(s):  
Test Field ◽  
Test Threshold

Results for 2 Ss showed that threshold luminance of a discshaped test-field increased with increase in the inducing luminance and was slightly altered by larger area of the inducing field.

Field facility for research and demonstration of CSO treatment technologies

1997 ◽  
Vol 36 (8-9) ◽  
pp. 391-396
Author(s):  
D. Averill ◽  
D. Mack-Mumford ◽  
J. Marsalek ◽  
R. Andoh ◽  
D. Weatherbe
Keyword(s):  
Pilot Scale ◽  
High Rate ◽  
Uv Disinfection ◽  
Combined Sewer Overflows ◽  
Combined Sewer ◽  
Treatment Technologies ◽  
Test Threshold ◽  
Vortex Separator ◽  
Solid Liquid ◽  
Solid Liquid Separation

A pilot scale study of options for the treatment combined sewer overflows is being conducted in Ontario, Canada. The objective is to achieve primary clarification equivalency in simple, high-rate satellite treatment systems. Effluent disinfection will also be required where bathing beaches are to be protected. Long column settling tests conducted with CSO suspensions indicated that approximately 40% of the suspended solids was non-settleable at the test threshold of 0.3 m/h. The use of a cationic polymer as the sole coagulant in a three metre diameter vortex separator achieved at least 50% TSS removal at surface loads up to approximately 40 m/h. The effluents from solid/liquid separation operations using the polymer coagulation strategy were more amenable to UV disinfection than those produced with metal-based coagulants. This document has been updated to include experimental results to mid-1997.

Validation of Performance-Based Specifications for Surface Asphalt Mixtures in Virginia

2021 ◽  
pp. 036119812110566
Author(s):  
Jhony Habbouche ◽  
Ilker Boz ◽  
Stacey D. Diefenderfer
Keyword(s):  
Field Performance ◽  
Performance Criteria ◽  
Mix Design ◽  
Asphalt Mixes ◽  
Performance Predictions ◽  
Asphalt Mix ◽  
Current Threshold ◽  
Test Threshold ◽  
Virginia Department ◽  
Threshold Criteria

The Virginia Department of Transportation (VDOT), like many owner agencies, is interested in ways to facilitate the increased durability of asphalt mixes in an effort to make its roadway network more sustainable, longer lasting, and more economical. The balanced mix design (BMD) method proposes to address this through the incorporation of performance criteria into mix design and acceptance. VDOT has committed to the implementation of the BMD method in an effort to improve asphalt mix performance. The purpose of this study was to continue advancing efforts toward implementation of BMD through the evaluation of 13 asphalt mixes using performance-indicating laboratory tests, validation of the initial performance tests selected for BMD use, and validation of the initial test threshold criteria. Based on the results, the asphalt pavement analyzer (APA) rut test, indirect tensile cracking test (IDT-CT), and Cantabro test were found suitable for continued use in BMD. The current threshold criteria for all three tests were found reasonable based on additional mix testing. The study recommends that APA rut test and IDT-CT results should be compared and correlated to fundamental rutting and cracking tests, respectively, as well as to performance predictions obtained from mechanistic-empirical pavement design simulations, and to field performance for full assurance that test threshold values are appropriate. It was further recommended to evaluate the Cantabro, IDT-CT, and APA rut tests to determine acceptable variability and establish precision statements.

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