نتایج جستجو برای: wetted perimeter
تعداد نتایج: 6763 فیلتر نتایج به سال:
Eolian transport of biomass from ephemerally wetted soils, associated with summer glacial meltwater runoffs and lake edges, to low-productivity areas of the Antarctic Dry Valleys (DV) has been postulated to be an important source of organic matter (fixed nitrogen and fixed carbon) to the entire DV ecosystem. However, descriptions and identification of the microbial members responsible for N(2) ...
To evaluate methods for detection of genital human papillomavirus (HPV) DNA in men, samples were obtained from 3 consecutive groups of 10 men attending a sexually transmitted disease clinic by use of (1) a saline-wetted Dacron swab alone, (2) a saline-wetted cytobrush, or (3) emery paper (600A-grit Wetordry Tri-M-ite; 3M) abrasion followed by a saline-wetted Dacron swab. By use of a polymerase ...
Adjuvants have been used to improve pesticide application efficiency and effectiveness for many years. However, knowledge on quantitative reactions of adjuvant-amended pesticide droplets on Article Request Page http://asae.frymulti.com/azdez.asp?JID=5&AID=29662&CID=pitt2010&T=1[12/28/2010 12:43:57 PM] foliage is lacking. Evaporation rate and wetted area of 500 μm droplets with four different ad...
In this paper, nanoscale wetting on groove-patterned surfaces is thoroughly studied using molecular dynamics simulations. The results are compared with Wenzel's and Cassie's predictions to determine whether these continuum theories are still valid at the nanoscale for both hydrophobic and hydrophilic types of surfaces when the droplet size is comparable to the groove size. A system with a liqui...
let e be the ellipse with major and minor radii a and b respectively, and pbe its perimeter, then p = lim 4 tan(p/n)(a + b + 2) σ a2 cos2 (2k-2)pi/n+ sin2 (2k-2)pi/n; where n = 2m. so without considering the limit, it gives a reasonable approxi-mation for p, it means that we can choose n large enough such that the amountof error be less than any given small number. on the other hand, the formul...
The main problem in the operation of irrigation systems is to ensure accuracy and reliability measuring hydrometric parameters managing water resources facilities. When operating with pumping stations, it becomes necessary measure a set technological parameters, which can be divided into following groups by type: hydraulic (flow rate, fluid pressure, flow channel), units, linear-angular (channe...
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