Results 81 to 90 of about 176,448 (289)
Multi-use lunar telescopes [PDF]
The objective of multi-use telescopes is to reduce the initial and operational costs of space telescopes to the point where a fair number of telescopes, a dozen or so, would be affordable.
Boyd, Louis +7 more
core +1 more source
Catheterization and Cardiovascular Interventions, EarlyView.ABSTRACT Backgrounds Accurate stent positioning in aorto‐ostial lesions remains challenging due to complex three‐dimensional anatomy, lack of optimal fluoroscopic projections, and high rates of geographic miss. Stent overhang impairs guide catheter re‐engagement and complicates future revascularization.
Gregor Leibundgut +7 more
wiley +1 more source
Carbon Energy, EarlyView.Transition metal (TM) ions with empty eg orbitals induce single‐electron delocalization in Ni3+ to form the resonance structure of Ni─OO─TM through the high‐entropy effect. High‐nickel cathode materials with electron resonance structure have the advantages of improving thermodynamic stability, suppressing phase transitions, and mitigating lattice ...
Yi Li +8 more
wiley +1 more source
Telescopes and space exploration [PDF]
The necessity for different types of telescopes for astronomical investigations is discussed. Major findings in modern astronomy by ground-based and spaceborne telescopes are presented. Observations of the Crab Nebula, solar flares, interstellar gas, and
Brandt, J. C., Maran, S. P.
core +1 more source
Optimal model‐based design of experiments for parameter precision: Supercritical extraction case
The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study investigates the process of chamomile oil extraction from flowers. A parameter‐distributed model consisting of a set of partial differential equations is used to describe the governing mass transfer phenomena in a cylindrical packed bed with solid chamomile particles under supercritical conditions using carbon dioxide as a solvent ...
Oliwer Sliczniuk, Pekka Oinas
wiley +1 more source
ESC Heart Failure, Volume 12, Issue 2, Page 1455-1463, April 2025.Abstract Aims The extent of irreversible cardiomyocyte necrosis after acute myocardial infarction (AMI) is a major determinant of residual left ventricular (LV) function and clinical outcome. Cell therapy based on CD34+ cells has emerged as an option to help repair the myocardium and to improve outcomes.
Jerome Roncalli +17 more
wiley +1 more source
Spectroscopic Studies of Early-type Stars with the Kourovka 1.2-m Telescope
Open Astronomy, 2016 We briey describe the characteristics of the 1.2-m telescope of Kourovka Observatory of the Ural Federal University, equipped with a fiber-optic echelle spectrometer, and report the results of spectroscopic studies of several early-type stars (CC Cas ...
Gorda S. Yu. +4 more
doaj +1 more source
Near-Infrared-Spectroscopy with Extremely Large Telescopes: Integral-Field- versus Multi-Object-Instruments [PDF]
, 2000 Integral-field-spectroscopy and multi-object-spectroscopy provide the high multiplex gain required for efficient use of the upcoming generation of extremely large telescopes. We present instrument developments and designs for both concepts, and how these
Eisenhauer, F. +5 more
core +1 more source
European Journal of Organic Chemistry, EarlyView.Glycomimetics with triazoline and aziridine groups were synthesised via diastereoselective Huisgen cycloaddition from glycosyl azides. Density functional theory was applied to define the mechanism for BF3 promoted aziridine formation. Triazoline and aziridine derivatives were synthesised by diastereo‐ and regioselective Huisgen cycloaddition of 2,3,4,6‐
Aaron McCormack +4 more
wiley +1 more source
Continued monitoring of LMXBs with the Faulkes Telescopes [PDF]
, 2008 The Faulkes Telescope Project is an educational and research arm of the Las Cumbres Observatory Global Telescope Network (LCOGTN). It has two 2-metre robotic telescopes, located at Haleakala on Maui (FT North) and Siding Spring in Australia (FT South ...
Clark, James +4 more
core +1 more source