An experimental assessment of factors affecting the sink rates of spanish-rig longlines to minimize impacts on seabirds

2007 ◽  
Vol 17 (S1) ◽  
pp. S102-S121 ◽  
Author(s):  
Graham Robertson ◽  
Carlos A. Moreno ◽  
Julián Crujeiras ◽  
Barbara Wienecke ◽  
Patricia Gandini ◽  
...  
Keyword(s):  
Experimental Assessment ◽  
Factors Affecting

Factors affecting DNA barcoding classification accuracy for piscine prey: An experimental assessment with invasive lionfish

2022 ◽  
Vol 547 ◽  
pp. 151675
Author(s):  
Kristen A. Dahl ◽  
Andrew Fields ◽  
Alison Robertson ◽  
David S. Portnoy ◽  
Alex Grieme ◽  
...  
Keyword(s):  
Dna Barcoding ◽  
Classification Accuracy ◽  
Experimental Assessment ◽  
Factors Affecting ◽  
Invasive Lionfish

Experimental Assessment of Factors Affecting the Distribution of Adult Female Tree Lizards

Oikos ◽  
1990 ◽  
Vol 59 (2) ◽  
pp. 183
Author(s):  
Robert T. M'Closkey ◽  
Christopher P. Szpak ◽  
Richard J. Deslippe
Keyword(s):  
Adult Female ◽  
Experimental Assessment ◽  
Factors Affecting ◽  
Female Tree ◽  
Tree Lizards

Progress In The Practical Application Of Automated Image Analysis To Tem Negatives

1977 ◽  
Vol 35 ◽  
pp. 214-217
Author(s):  
F. A. Heckman ◽  
E. Redman ◽  
J.E. Connolly
Keyword(s):  
Image Analysis ◽  
Image Quality ◽  
Exposure Time ◽  
Image Contrast ◽  
Automated Image Analysis ◽  
Practical Application ◽  
Factors Affecting ◽  
High Image Quality ◽  
Qualitative Evidence ◽  
Comprehensive Study

In our initial publication on this subject1) we reported results demonstrating that contrast is the most important factor in producing the high image quality required for reliable image analysis. We also listed the factors which enhance contrast in order of the experimentally determined magnitude of their effect. The two most powerful factors affecting image contrast attainable with sheet film are beam intensity and KV. At that time we had only qualitative evidence for the ranking of enhancing factors. Later we carried out the densitometric measurements which led to the results outlined below.Meaningful evaluations of the cause-effect relationships among the considerable number of variables in preparing EM negatives depend on doing things in a systematic way, varying only one parameter at a time. Unless otherwise noted, we adhered to the following procedure evolved during our comprehensive study:Philips EM-300; 30μ objective aperature; magnification 7000- 12000X, exposure time 1 second, anti-contamination device operating.

Factors affecting microstructural scale in liquid crystalline polymers

1990 ◽  
Vol 48 (4) ◽  
pp. 220-221
Author(s):  
Christine M. Dannels ◽  
Christopher Viney
Keyword(s):  
Liquid Crystalline ◽  
Liquid Crystalline Polymers ◽  
Factors Affecting ◽  
Crystalline Polymers ◽  
Thermal Expansion Coefficients ◽  
Low Thermal Expansion ◽  
Lower Viscosity ◽  
Fine Microstructure ◽  
Planar Orientation ◽  
Strength And Stiffness

Processing polymers from the liquid crystalline state offers several advantages compared to processing from conventional fluids. These include: better axial strength and stiffness in fibers, better planar orientation in films, lower viscosity during processing, low solidification shrinkage of injection moldings (thermotropic processing), and low thermal expansion coefficients. However, the compressive strength of the solid is disappointing. Previous efforts to improve this property have focussed on synthesizing stiffer molecules. The effect of microstructural scale has been overlooked, even though its relevance to the mechanical and physical properties of more traditional materials is well established. By analogy with the behavior of metals and ceramics, one would expect a fine microstructure (i..e. a high density of orientational defects) to be desirable.Also, because much microstructural detail in liquid crystalline polymers occurs on a scale close to the wavelength of light, light is scattered on passing through these materials.

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