In Situ Methanation on Mars: A Process Concept Study on the Impact of H2/CO2 and Recycle Ratio
Chemie Ingenieur Technik, EarlyView.The rocket propellant methane can be produced on Mars by in situ resource utilization. The H2/CO2 ratio is decisive, and excess H2 is favored for providing sufficient propellant purity. The operation mode—with or without recycling of unreacted reactants—depends on the resource availability of the selected landing site. Abstract For return missions from
Franz Braun +4 more
wiley +1 more source
Ether and Electrons in Relativity Theory [PDF]
, 2018 This chapter discusses the roles of ether and electrons in relativity theory. One of the most radical moves made by Albert Einstein was to dismiss the ether from electrodynamics.
Walter, Scott A.
core
Optimization of 3D‐Printed Structured Packings—Current State and Future Developments
Chemie Ingenieur Technik, EarlyView.This paper gives an overview about structured packing development for distillation, surveying heuristic development cycles, computational fluid dynamics simulations, and additive manufacturing techniques. The emerging application of shape optimization to improve packings is emphasized, and its benefits, impact, and limitations are discussed.
Dennis Stucke +3 more
wiley +1 more source
Polemik des Wissens Raoul Hausmann liest Albert Einstein [PDF]
, 2006 Arndt Niebisch
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Detecção de mutações no gene KIT em leucemia mieloide aguda
Einstein (São Paulo), 2012 OBJETIVO: Descrever a metodologia para detecção de mutações nos éxons 8 e 17 do gene KIT em pacientes portadores de leucemia mieloide aguda, para implementação desse teste no laboratório clínico do Hospital Israelita Albert Einstein. MÉTODOS: Extração do
Luis Eduardo Silva Machado +6 more
doaj
Redução do custo em cirurgia de coluna em um centro especializado de tratamento
Einstein (São Paulo)OBJETIVO: Comparar o custo estimado do tratamento de patologias da coluna aos verificados para esse tratamento dentro de um centro especializado. MÉTODOS: Foi realizada a avaliação dos custos médios de tratamento de 399 pacientes encaminhados por uma ...
Dan Carai Maia Viola +6 more
doaj +1 more source
A new perspective on steady-state cosmology: from Einstein to Hoyle [PDF]
, 2015 We recently reported the discovery of an unpublished manuscript by Albert Einstein in which he attempted a 'steady-state' model of the universe, i.e., a cosmic model in which the expanding universe remains essentially unchanged due to a continuous ...
Mitton, Simon, O'Raifeartaigh, Cormac
core +1 more source
CHEMKON, EarlyView.Im Beitrag wird die Konstruktion eines low‐cost Muffelofens auf der Grundlage eines Espressokochers und einer Heizplatte vorgestellt. In diesem können die auf Kohlenstoff und Stickstoff basierenden polymeren Kohlenstoffnitride aus Harnstoff synthetisiert werden.
Malte Petersen +4 more
wiley +1 more source
Consideracions fonamentals sobre el postulat de relativitat [PDF]
, 2014 L'autor hi justifica la necessitat d'ampliar la teoria de la relativitat ...
Albert Einstein
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Hawking/Israel (Hrsg.): 300 Years of Gravitation/Jungnickel/McCormmach: Intellectual Mastery of Nature/Sugimoto: Albert Einstein/Schönwiese/Diekmann: Der Treibhauseffekt/Saslaw: Gravitational Physics of Stellar and Galactic Systems/McConnell: The Theory of Nuclear Magnetic Relaxation in Liquids/Bell: Speakable and Unspeakable in Quantum Mechanics [PDF]
, 1988 Jϋrgen Ehlers +6 more
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