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force numerical simulations: Topics by Science. gov Numerical Simulations for Distribution Characteristics of Internal Forces on Segments of Tunnel Linings NASA Astrophysics Data System (ADS) Li, Shouju; Shangguan, Zichang; Cao, Lijuan A procedure based on FEM is proposed to simulate interaction between concrete segments of tunnel linings and soils The beam element named as Beam 3 in ANSYS software was used to simulate segments The ground
mediante progesterona vaginal: Topics by Science. gov Vaginalprogesterone vs intramuscular 17α-hydroxyprogesterone caproate for prevention of recurrent spontaneous preterm birth in singleton gestations: systematic review and meta-analysis of randomized controlled trials
fluvial deposits northeastern: Topics by Science. gov The observed foraminiferal linings and dinocyst assemblages are typical for a (eutrophic) shallow marine environment, suggesting that the Pebas freshwater wetland system occasionally changed to (marginal) marine Although some reworked elements are found, a typical Neogene dinocyst taxon is commonly found supporting in situ deposition
proteins including serum: Topics by Science. gov Overall, 250 protein spots were analyzed, and 138 identified Compared with healthy sheep, serum protein profiles of animals with rhino-tracheo-bronchitis showed a significant decrease in protein spots identified as transthyretin, apolipoprotein A1 and a significant increase in spots identified as haptoglobin, endopin 1b and alpha1B glycoprotein
cleaning tank incident: Topics by Science. gov The Savannah River Site (SRS) has 49 high level waste (HLW) tanks that must be emptied, cleaned, and closed as required by the Federal Facilities Agreement The current method of chemical cleaning uses several hundred thousand gallons per tank of 8 weight percent (wt%) oxalic acid to partially dissolve and suspend residual waste and corrosion products such that the waste can be pumped out of
underwater sound absorption: Topics by Science. gov Underwater noise spectra, fish sounds and response to low frequencies of cutthroat trout Oncorhynchus clari with reference to orientation and The absorption of sound by perforated linings NASA Astrophysics Data System (ADS) Hughes, I J ; Dowling, A P 1990-09-01
nacelle acoustic lining: Topics by Science. gov The improvement possible in the areas of fuel consumption, flyover noise levels, airplane weight, manufacturing costs, and airplane operating cost were evaluated for short and long-duct nacelles Use of composite structures for acoustic duct linings in the fan inlet and exhaust ducts was considered as well as for other nacelle components
measuring surface contour: Topics by Science. gov Method and apparatus for measuring surface contour on parts with elevated temperatures DOEpatents Horvath, Mark S ; Nance, Roy A ; Cohen, George H ; Fodor, George 1991-01-01 The invention is directed to a method and apparatus for measuring the surface contour of a test piece, such as the bow of a radioactive fuel rod, which is completely immersed in water The invention utilizes ultrasonic
grasshopper omocestus viridulus: Topics by Science. gov White rhino is the most abundant vertebrate herbivore in our study site Other common mesoherbivores include buffalo, zebra and impala We hypothesized that white rhinos would have greater impact than mesoherbivores on grasshopper communities
baffles: Topics by Science. gov With the addition of cavity damping in the form of 25-mm foam linings, the insertion loss above 250 Hz of the resonant-cavity baffles was improved 2 to 7 db compared with the undamped baffles; the loss became equal to or greater than the insertion loss of comparable size fiberglass baffles at frequencies above 250 Hz