Search results for "Turing"
showing 10 items of 2644 documents
Comparison of analytical methods and AI tools for material characterisation in hot forming
2002
Abstract Hot forming processes probably represent the most ancient of forming operations and what is more they are still today commonly used in modern mechanical industry in order to obtain sound parts, achieving large deformations with a limited required power. Hot metal forming operations are characterised by a large number of physical and thermal phenomena which have to be taken into account in order to model and design the processes themselves. Actually several thermally activated phenomena occur during the forming processes such as recovery, recrystallisation, grain growth, precipitation, allotropic transformations, etc. In this paper the comparison between an analytical method based o…
Advances in Design, Simulation and Manufacturing IV
2021
This book reports on topics at the interface between mechanical and chemical engineering, emphasizing design, simulation, and manufacturing. Specifically, it covers recent developments in the mechanics of solids and structures, numerical simulation of coupled problems, including fatigue, fluid behavior, particle movement, pressure distribution. Further, it reports on developments in chemical process technology, heat and mass transfer, energy-efficient technologies, and industrial ecology. Based on the 4th International Conference on Design, Simulation, Manufacturing: The Innovation Exchange (DSMIE-2021), held on June 8-11, 2021, in Lviv, Ukraine, this second volume of a 2-volume set provide…
Initial French language teacher education policy in Greece and curriculum evaluation among student teachers of FLE
2015
This paper presents initial language teacher education policy adopted in Greece and describes a study which examines student teachers’ of FLE (Français Langue Étrangère) perception of their initial teacher education and its contribution to their future professional life. The sample comprised 67 student teachers in their fourth year of studies for a bachelor degree in the department of French language and literature in the Aristotle University of Thessaloniki in Greece. Data were collected through questionnaires which included both a structured and an open-ended part. The questionnaire’s content was based on the European Profile for Language Teacher Education — a Frame of Reference (Kelly et…
Arc crossing minimization in graphs with GRASP
2001
Graphs are commonly used to represent information in many fields of science and engineering. Automatic drawing tools generate comprehensible graphs from data, taking into account a variety of properties, enabling users to see important relationships in the data. The goal of limiting the number of arc crossings is a well-admitted criterion for a good drawing. In this paper, we present a Greedy Randomized Adaptive Search Procedure (GRASP) for the problem of minimizing arc crossings in graphs. Computational experiments with 200 graphs with up to 350 vertices are presented to assess the merit of the method. We show that simple heuristics are very fast but result in inferior solutions, while hig…
Efficient microwave-assisted synthesis of glycerol monodecanoate
2017
International audience; Solvent-free microwave-assisted synthesis was carried out to prepare 2,3-dihydroxypropyl decanoate, by esterification of decanoic acid in the presence of two distinct glycerol derivatives, glycidol, and glycerol carbonate, respectively. The process described is based on microwaves heating source with electrical power in the range of 200–400 W, involving stoichiometric proportions of decanoic acid and glycerol derivatives, and using catalytic amounts of TBAI used as organocatalyst. Conversion and selectivity rates of esterification reactions were monitored by 1H and 13C{1H} NMR spectroscopy. The predominantly formed ester, 2,3-dihydroxypropyl decanoate was fully chara…
Extraction of thermal characteristics of surrounding geological layers of a geothermal heat exchanger by 3D numerical simulations
2016
Ground thermal conductivity and borehole thermal resistance are key parameters for the design of closed Ground-Source Heat Pump (GSHP) systems. The standard method to determine these parameters is the Thermal Response Test (TRT). This test analyses the ground thermal response to a constant heat power injection or extraction by measuring inlet and outlet temperatures of the fluid at the top of the borehole heat exchanger. These data are commonly evaluated by models considering the ground being homogeneous and isotropic. This approach estimates an effective ground thermal conductivity representing an average of the thermal conductivity of the different layers crossed by perforation. In order …
Efficiency improvement of a ground coupled heat pump system from energy management
2011
The installed capacity of an air conditioning system is usually higher than the average cooling or heating demand along the year. So, most of the time, the system is working under its actual capacity. In this contribution, we study the way to improve the efficiency of a ground coupled heat pump air conditioning system by adapting its produced thermal energy to the actual thermal demand. For this purpose, an air conditioning system composed by a ground coupled heat pump and a central fan coil linked to an office located in a cooling dominated area was simulated, and a new management strategy aiming to diminish electrical consumption was developed under the basic constraint that comfort requi…
Tierexperimentelle Untersuchungen zur Frage der Beeinflussung der Kaffeewirkung durch das Kofrosta-Behandlungsverfahren
1965
In Untersuchungen an Ratten and Mausen werden die Wirkungen eines unbehandelten und eines nach dem Kofrosta-Verfahren behandelten Kaffees vergleichend gepruft. 1. Diezentrale Erregbarkeit, welche an Ratten durch Krampfschwelleumessungen und an Mausen durch Registrierung der Spontanaktivitat im Zitterkafig festgestellt wurde, stieg nach Verabreichung der untersuchten Kaffeeproben deutlich an, wobei allerdings kein Unterschied zwischen einem unbehandelten and einem Kofrostabehandelten Kaffee nachgewiesen werden konnte. 2. Die beiden verglichenen Kaffeearten regten dieGalleausscheidung deutlich an. Auch hier war die Wirkung sowohl beziiglich des ausgeschiedenen Flussigkeits-volumens als auch d…
Über nichtenzymatische Bräunungsreaktionen und ihre physiologischen Folgen. II. Mitteilung. Methoden zur Erfassung von Veränderungen
1956
Es wurde uber die Anwendung verschiedener Methoden berichtet, die geeignet sind, bestimmte, durch-die nichtenzymatische Braunungsreaktion hervorgerufene Veranderungen an einzelnen Aminosauren und am Eiweis zu erfassen.
Die Bedeutung der Topinambur für die Ernährung des Menschen
1950
Das Topinambur als Gemuse in kleinen Mengen verzehrt werden kann, ist bekannt. Auch bei grosen Mengen von Topinambur, anstelle von Kartoffeln gegeben, ist die Ausnutzung im allgemeinen gut. Vereinzelt kann jedoch auch schlechte Ausnutzung beobachtet werden. Die Allgemeinerscheinungen, die nach dem Genus groser Mengen Topinambur beobachtet werden, lassen zunachst einen Genus von Topinambur in grosen Mengen nicht empfehlenswert erscheinen. Es soll versucht werden zu klaren, welche Bestandteile der Topinambur fur die mangelhafte Vertraglichkeit verantwortlich sind und ob durch geeignete Vorbehandlung eine Verbesserung zu erzielen ist, die auch den Genus von grosen Mengen zulast, ohne zu irgend…