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1121
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1123
Experimental determination and computational fluid dynamics predictions of pressure loss in close-coupled elbows (RP-1682)
Published 2017“…The results of this study showed that the loss coefficient increased as a function of separation distance between the elbows in a Z-configuration and decreased in a U-configuration. …”
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1124
Electrochemical oxidation of ammonia (NH4+/NH3) ON synthesized nickel-cobalt oxide catalyst
Published 2021“…The reported Pgen were 0.55, 0.85, 1.1 and 0.0.93 mW/cm2 for Ni–C, Co10/Ni–C, Co20/Ni–C and Co40/Ni–C. A concentration of Co higher than 40% decreased cell potential (Vcell) and reduced the percentage removal of ammonia (%REAmm). …”
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1125
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1126
Simulation and experimental study of underwater dissimilar friction-stir welding between aluminium and steel
Published 2020“…Theeffects of processing parameters on the formation of intermetallic compounds (IMCs) atthe Al/St interface, microstructural characteristics, and mechanical property of dissimilarweldments were studied and addressed. By decreasing tool rotational speed (w), increas-ing traverse velocity (v), and employing cooling medium, peak temperature continuouslyreduced (down to ?…”
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1127
Long-Distance Vowel-to-Vowel Coarticulation in Arabic: Influences of Intervening Consonant Pharyngealization and Length
Published 2019“…Speakers of Egyptian Arabic were recorded saying sentences containing nonsense sequences of the form /baɁabaCV:/, where C was chosen from {/t/, /tˤ/, /t:/, /tˤ:/} and V was a long vowel /i:/, /a:/ or /u:/. Analysis of the first and second formants of the recorded vowels revealed that (a) vowel-to-vowel coarticulatory effects could sometimes extend to a distance of three vowels before the context vowel; (b) the consonant-to-vowel effects associated with pharyngealization were consistently seen at similar distances, while also decreasing in magnitude at greater distances from the triggering consonant; and (c) effects related to intervening consonant length were idiosyncratic, and in particular did not lead to consistent blocking of vowel-to-vowel effects. …”
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1128
Persistent viral infectivity after 27 days from COVID-19 symptoms onset
Published 2021“…The persistence of SARS-CoV- 2 in pharyngeal swabs belonging to patients affected by COVID-19 is not a rare occurrence. …”
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1129
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1130
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1131
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1132
Structural performance and moment redistribution of basalt FRC continuous beams reinforced with basalt FRP bars
Published 2021“…This study investigated the structural performance and moment redistribution of basalt fiber reinforced concrete (BFRC) continuous beams reinforced with basalt fiber reinforced polymers (BFRP) bars. A total of 10 reinforced concrete (RC) continuous beams over two equal spans of 1800 mm were tested under five-point loading until failure. …”
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1133
Selective adsorption of carbon dioxide, methane and nitrogen using resorcinol-formaldehyde-xerogel activated carbon
Published 2017“…Adsorption/desorption isotherms of CO2, CH4, and N2 gases onto RF-ACX adsorbent were measured gravimetrically by a magnetic suspension microbalance at five different temperatures (20, 30, 40, 50 and 60 °C) in the pressure range of 0–1 MPa. …”
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1134
Trends of use of SGLT2 inhibitors in Qatar
Published 2021“…Background: Type 2 diabetes mellitus (T2DM) represents a growing health challenge in Qatar and worldwide. …”
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1135
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1136
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1138
Influence of changing casing groove parameters on the performance of centrifugal compressors near stall condition
Published 2016“…Results showed that by increasing the number of grooves, the surge margin (SM) increases and the isentropic efficiency decreases, but the stall area at the shroud surface decreases in size and its location is shifted toward the blades trailing edge.…”
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1139
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1140