Results 11 to 20 of about 24,551 (233)
Journal of Cardiovascular Magnetic Resonance, 2017 Background Cardiac catheterization is a common procedure in patients with congenital heart disease (CHD). Although cardiovascular magnetic resonance imaging (CMR) represents a promising alternative approach to fluoroscopy guidance, simultaneous high ...
Mari Nieves Velasco Forte +12 more
doaj +2 more sources
Synthesis of Amides from Amines and Esters Under Hydrothermal Conditions [PDF]
ChemistryOpenIn this study, we explore the amide synthesis under hydrothermal conditions, using amines and esters as the starting materials. Proposed major pathway starts with ester hydrolysis, followed by condensation between carboxylic acids and amines. The amide yield is dependent on the substrate structure, solution pH, and the presence of dissolved metal salts.
Brown P, Aspin A, Yang Z.
europepmc +2 more sources
High-Throughput Fabrication of Zero-Mode Waveguide Nanoaperture Arrays with Sol-Gel Nanoimprint Lithography for Enhanced Single Molecule Fluorescence Detection. [PDF]
SmallThe researchers developed a scalable and cost‐effective method to fabricate zero‐mode waveguide (ZMW) nanoapertures in metallic films using sol‐gel nanoimprint lithography and vapor‐phase etching. These nanostructures confine light to attoliter volumes, enhancing fluorescence brightness and enabling single‐molecule detection at micromolar ...
Khelidj H +6 more
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STUDIES IN ENGINEERING AND EXACT SCIENCES, 2023 The work presented in this paper is to study the impact of FACTS (flexible alternating current transmission system) on the power flow and power losses of a multi-machine electrical system.
Elbar Mohamed +4 more
semanticscholar +1 more source
Stability Improvement Of the (400kV) Iraqi Grid using the best FACTS Devices [PDF]
Engineering and Technology Journal, 2015 Electrical power system has become large and complicated, so it is subjected to sudden changes in load levels. Stability is an important concept which determines the stable operation of the power system.The modern trend is to employ by installing ...
Rashid H. Al-Rubayi +1 more
doaj +1 more source
Comparison of load flow analysis using PSAT and ETAP
IOP Conference Series: Materials Science and Engineering, 2021 Abstract The level of electrical quality has become a necessity in supporting human activities, especially in voltage stability. To support the calculation of voltage stability, various load flow methods have been developed. Load Flow Analysis is very important in planning and implementation in designing future power system expansion and
M Rif’an +3 more
openaire +1 more source
Research on Transient Stability for Wind Power System Based on PSAT
南方能源建设, 2020 [Introduction] The paper aims to study the transient stability of the wind power system and that how the injection of reactive power to the wind power system affects the stability.
XIN Wencheng +4 more
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Initiated Chemical Vapor Deposition Kinetics of Poly(4-aminostyrene)
Frontiers in Bioengineering and Biotechnology, 2021 Initiated Chemical Vapor Deposition (iCVD) is a free-radical polymerization technique used to synthesize functional polymer thin films. In the context of drug delivery, the conformality of iCVD coatings and the variety of functional chemical moieties ...
Alexandra Khlyustova, Rong Yang
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EFFECTIVENESS OF PSAT AND SAT BOOKLETS [PDF]
ETS Research Bulletin Series, 1966 ABSTRACTA questionnaire was developed and administered to about 450 12th grade students as a means of evaluating the booklet, Your College Board Scores: Scholastic Aptitude Test, Achievement Tests. In general, the booklet was found to communicate effectively.
Gerald Halpern, Masu Sasajima
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Endangered Species Research, 2021 We present evidence of predator interactions with 8 juvenile loggerhead sea turtles Caretta caretta equipped with pop-up satellite archival transmitting tags (PSATs) following incidental capture in the Northwest Atlantic.
KE Hall, MC James
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