Performance of television ghost cancelling systems under field test conditions

1992 ◽  
Vol 38 (3) ◽  
pp. XVIII-XVXXV
Author(s):  
V. Tawil ◽  
L.D. Claudy
Keyword(s):  
Field Test ◽  
Test Conditions

Study on Mathematical Simulation of Nitrogen Oxides (NOx) Formation of Coal-Fired Boiler

2011 ◽  
Vol 354-355 ◽  
pp. 319-324
Author(s):  
Li Jun Heng ◽  
Kun Jie Duan ◽  
Chang Zheng He
Keyword(s):  
Nitrogen Oxides ◽  
Mathematical Models ◽  
Mathematical Simulation ◽  
Field Test ◽  
Theoretical Basis ◽  
Influence Factors ◽  
Field Tests ◽  
Test Conditions ◽  
Fluent Software ◽  
Simulation Results

There exist certain limitations to research the law and influence factors of the nitrogen oxides formation only with the help of field tests, because the nitrogen oxides formation of the boiler is influenced by various factors. The flow, combustion mathematical models interrelated and so on are established taking the 410t/h boiler fired tangentially as a prototype by the use of the fluent software. All the mathematical models are verified and modified with the aid of routine field test data, and the accuracy and reliability of the mathematical models are improved. Then NOx formation performance is stimulated in allusion to the influence factors without field test conditions. The mathematical simulation results show that mathematical models can provide a sufficient theoretical basis to analyze accurately combustion and NOx formation law in furnace, and the deficiencies of field tests have been made up.

Immunization of Pacific Salmon: Comparison of Intraperitoneal Injection and Hyperosmotic Infiltration of Vibrio anguillarum and Aeromonas salmonicida Bacterins

1977 ◽  
Vol 34 (2) ◽  
pp. 203-208 ◽  
Author(s):  
Ross Antipa ◽  
Donald F. Amend
Keyword(s):  
Field Test ◽  
Growth Rates ◽  
Chinook Salmon ◽  
Coho Salmon ◽  
Pacific Salmon ◽  
Vibrio Anguillarum ◽  
Oncorhynchus Kisutch ◽  
Aeromonas Salmonicida ◽  
Significant Protection ◽  
Test Conditions

Two methods of immunizing fish, intraperitoneal (i.p.) injection and hyperosmotic infiltration, were compared for control of vibriosis and furunculosis in pen-reared coho salmon (Oncorhynchus kisutch) and chinook salmon (O. tshawytscha). Both methods provided significant protection against vibriosis under field test conditions. In coho salmon, hyperosmotic infiltration provided the best protection and fastest rise in antibody titer of seven treatments tested. In chinook salmon, hyperosmotic infiltration of Vibrio anguillarum and Aeromonas salmonicida vaccines resulted in 83.3% survival in comparison with 28.7% survival in controls. Both i.p. injection and hyperosmotic infiltration of V. anguillarum and A. salmonicida bacterins resulted in production of serum antibodies specific for each respective pathogen. Vaccination with bivalent V. anguillarum–A. salmonicida vaccines produced antibodies to both pathogens, and provided protection against vibriosis. Growth rates of vaccinated coho salmon were not significantly different from controls.

Structural Analysis of Wendelstein 7-X Nonplanar Coil Type 1 in Self-Field Test Conditions

2017 ◽  
Vol 73 (1) ◽  
pp. 43-49
Author(s):  
Shanwen Zhang ◽  
Yuntao Song ◽  
Zhongwei Wang ◽  
Xuebing Peng ◽  
Jianfeng Zhang ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Field Test ◽  
Test Conditions

Laboratory vs. Field Experimentation in Human Factors—An Evaluation of an Experimental Self-Service Airline Ticket Vendor

1971 ◽  
Vol 13 (6) ◽  
pp. 521-531 ◽  
Author(s):  
Robert L. Erdmann ◽  
Alan S. Neal
Keyword(s):  
Consumer Behavior ◽  
Laboratory Test ◽  
Human Factors ◽  
Field Test ◽  
Response Times ◽  
Human Response ◽  
Test Conditions ◽  
Self Service ◽  
Field Experimentation ◽  
Airline Ticket

Human response times in the experimental Automatic Ticket Vendor (ATV) system were studied first in a laboratory test with simulated operation of some parts of the system and then in a field test at the O'Hare airport in Chicago. Results for human response times were comparable in the two tests, but the field test answered other questions about consumer behavior and subjective reactions that could not be studied in the laboratory. This paper compares the test conditions and results and discusses the relative advantages of the two methods of testing for various purposes.

Effects of Fundamental Frequency Contours on Sentence Recognition in Mandarin-Speaking Children With Cochlear Implants

2020 ◽  
Vol 63 (11) ◽  
pp. 3855-3864
Author(s):  
Wanting Huang ◽  
Lena L. N. Wong ◽  
Fei Chen ◽  
Haihong Liu ◽  
Wei Liang
Keyword(s):  
Cochlear Implants ◽  
Fundamental Frequency ◽  
Signal To Noise Ratio ◽  
Lexical Tone ◽  
Signal To Noise ◽  
Sentence Recognition ◽  
Test Conditions ◽  
Age Appropriate ◽  
F0 Contour ◽  
Appropriate Sentences

Purpose Fundamental frequency (F0) is the primary acoustic cue for lexical tone perception in tonal languages but is processed in a limited way in cochlear implant (CI) systems. The aim of this study was to evaluate the importance of F0 contours in sentence recognition in Mandarin-speaking children with CIs and find out whether it is similar to/different from that in age-matched normal-hearing (NH) peers. Method Age-appropriate sentences, with F0 contours manipulated to be either natural or flattened, were randomly presented to preschool children with CIs and their age-matched peers with NH under three test conditions: in quiet, in white noise, and with competing sentences at 0 dB signal-to-noise ratio. Results The neutralization of F0 contours resulted in a significant reduction in sentence recognition. While this was seen only in noise conditions among NH children, it was observed throughout all test conditions among children with CIs. Moreover, the F0 contour-induced accuracy reduction ratios (i.e., the reduction in sentence recognition resulting from the neutralization of F0 contours compared to the normal F0 condition) were significantly greater in children with CIs than in NH children in all test conditions. Conclusions F0 contours play a major role in sentence recognition in both quiet and noise among pediatric implantees, and the contribution of the F0 contour is even more salient than that in age-matched NH children. These results also suggest that there may be differences between children with CIs and NH children in how F0 contours are processed.

Field test for environmental correlates of dispersal in hedgehogs Erinaceus europaeus

2001 ◽  
Vol 70 (1) ◽  
pp. 33-46 ◽  
Author(s):  
Doncaster C. Patrick ◽  
Rondinini Carlo ◽  
Johnson Paul C. D.
Keyword(s):  
Field Test ◽  
Erinaceus Europaeus ◽  
Environmental Correlates
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