Results 21 to 30 of about 115,932 (268)
Substrate and pH‐dependent homogeneous electrocatalysis using riboflavin for oxygen reduction
Electrochemical Science Advances, Volume 2, Issue 6, December 2022., 2022 The electrocatalytic oxygen reduction using natural riboflavin in homogeneous solutions at various different pH levels showed a substantial increase in H2O2 production. Three different carbon‐based electrode materials were used. Abstract Homogeneous, aqueous solutions of the natural compound riboflavin were investigated for their electrocatalytic ...
Elisabeth Leeb +3 more
wiley +1 more source
The accelerated Kepler problem [PDF]
Celestial Mechanics and Dynamical Astronomy, 2007 The accelerated Kepler problem is obtained by adding a constant acceleration to the classical two-body Kepler problem. This setting models the dynamics of a jet-sustaining accretion disk and its content of forming planets as the disk loses linear momentum through the asymmetric jet-counterjet system it powers.
NAMOUNI F, GUZZO, MASSIMILIANO
openaire +5 more sources
A 38 Million Year Old Neptune-sized Planet in the Kepler Field
The Astronomical Journal, 2022 Kepler 1627A is a G8V star previously known to host a 3.8 R _⊕ planet on a 7.2 day orbit. The star was observed by the Kepler space telescope because it is nearby ( d = 329 pc) and it resembles the Sun.
L. G. Bouma +14 more
doaj +1 more source
The Astronomical Journal, 2023 We present the latest and most precise characterization of the architecture for the ancient (≈11 Gyr) Kepler-444 system, which is composed of a K0 primary star (Kepler-444 A) hosting five transiting planets and a tight M-type spectroscopic binary (Kepler-
Zhoujian Zhang +13 more
doaj +1 more source
Molecular Genetics &Genomic Medicine, Volume 11, Issue 1, January 2023., 2023 This work describes our cross‐disciplinary experience identifying and evaluating 12 patients for clinical, biochemical, and familial features of Hypophosphatasia (HPP) from a retrospective database review of expanded carrier screening (ECS) results in our center.
Natalie M. Beck +9 more
wiley +1 more source
Macromolecular Reaction Engineering, Volume 16, Issue 6, December 2022., 2022 Chemical recycling of plastic waste has promise as a complementary technology to increase eco‐efficiency of plastics life cycles. Accumulation of impurities in feed streams can affect sensitive compounds such as the Ziegler–Natta catalysts. In a poison study, the influence of NO and N2O on the catalyst system in terms of kinetics, activity, and ...
Daniel C. Pernusch +3 more
wiley +1 more source
Experiencia estética y formulación científica: el caso del Harmonices Mundi de Johannes Kepler
Anuario Musical, 2013 La música como modelo explicativo del universo ha estado presente desde el mismo nacimiento de la reflexión filosófica. En el caso de Kepler, la música y la astronomía quedaban homologadas sobre la base de un único arquetipo geométrico, y por ello podían
Carlos Calderón Urreiztieta
doaj +1 more source
Polymer Engineering &Science, Volume 62, Issue 12, Page 3902-3922, December 2022., 2022 Workflow of the experimental study for validating non‐Newtonian co‐extrusion flow models: digital twin of the co‐extrusion process based on symbolic regression models, design of experiments, and error analysis Abstract In the co‐extrusion of plastics, pressure‐throughput behavior, layer distribution, and residence time are crucial parameters, modeling ...
Alexander Hammer +4 more
wiley +1 more source
Dalton Transactions, 2017 An impressive keplerate [Ce21] complex with a “Russian doll” structure has been isolated and characterized.
Angelos B. Canaj +5 more
openaire +5 more sources
Kepler-20: A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates [PDF]
, 2011 We present the discovery of the Kepler-20 planetary system, which we initially identified through the detection of five distinct periodic transit signals in the Kepler light curve of the host star 2MASSJ19104752+4220194.
+44 more
core +4 more sources