These: Étude de la formation et de la propagation de jets de plasma créés par un laser de puissan
Domaine: Physique, optique
Le contexte de cette thèse expérimentale est l'astrophysique de laboratoire. Le but des expériences réalisées à l'aide des lasers de puissance est l'étude de l'évolution des jets d'étoiles jeunes et leurs interactions avec le milieu interstellaire. L'existence des lois d'échelle permet de relier les résultats acquis en laboratoire aux problématiques astrophysiques via les nombres sans dimension. Ces paramètres assurent la similarité entre les deux doma

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Canon Formation - lecture handout
Canon Formation - lecture handout
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These: Mécanismes et modélisation mécanique de la déformation, de l'endommagement et de la ruptu
Domaine: Science des matériaux, mécanique, génie mécanique
ARKEMA s'intéresse à la conception de matériaux thermoplastiques renforcés au choc en incorporant des particules dans le polymère pur au moment de la mise en forme et à l'effet du vieillissement hydrolitique sur ces mêmes matériaux. L'ajout d'une seconde phase de type élastomère est une technique souvent utilisée dans le but d'améliorer la résilience d'un polymère, celle-ci étant testée par essais Charpy. La prése

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These: Compréhension des mécanismes de formation de dépôts en fond de première gorge de piston

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Habit Formation
In a paper published in the Oct 25 issue of the Proceedings of the National Academy of Sciences, a team of neuroscientists led by Institute Professor Ann Graybiel found that untrained monkeys performing a simple visual scanning task gradually developed efficient patterns that allowed them to minimize the time it took to receive their reward. The study shows that habit formation appears to be an innate ability that is fine-tuned by experience — specifically, the costs and rewards of cert
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Formation of a Spit
This Flash animated slide show is an illustration of spit formation. It shows how longshore currents pass headlands, slow, and deposit entrained sediment. It also shows how river mud is deposited behind the growing spit which is eventually only covered with water during high tide. Plants begin to grow and thus stabilize the mud. Homes or tourist facilities are often built on sand spits. The user can navigate backwards and forwards within the slide. This is one of several animations from the phys
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Animation Showing the Formation of an Arch
This Flash animation illustrates aeolian processes that form terrestrial arches. Erosion exploits tectonic fractures and results in thin sandstone walls that can be penetrated by near ground windblown sand grains. Over time, weathering and gravity causes arches to fall. Users can stop, play, fast forward and rewind the animation at any time. This visualization is one of several animations in a series developed as a component of Exploring Earth, a website that supports the textbook Earth Science.
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Earth System: El Niño's Influence on Hurricane Formation
This video segment adapted from NASA's Goddard Space Flight Center explains how hurricanes develop and why there are fewer hurricanes in the Atlantic Ocean in strong El Niño years.
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Cave Formation: Kane Cave
This video segment adapted from NOVA describes a simple experiment that confirmed the idea that microbes can accelerate the biogeochemical process of cave formation.
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Cave Formation: Biogeochemical Cycles
This video segment adapted from NOVA chronicles the discoveries that led to a radical new theory in which living organisms, not just geological processes, play an active role in cave formation.
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Ghosts, Witches and Portents in Early Modern Europe: Seminar 2.7: 'Visible Sermons': Portents and th
Ghosts, Witches and Portents in Early Modern Europe: Seminar 2.7: 'Visible Sermons': Portents and the Formation of Protestant Piety
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Product Formation and Percent Yield
In another tutorial, we considered the amount of reactant consumed by a chemical reaction. Here, we'll consider the amount of product formed by a reaction.
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Formation of Acetyl Co-enzyme A
This page explains the formation of Acetyl Co-enzyme A which is key to the synthesis of many organic molecules in cells. An acetyl group is a simple two-carbon-atom molecule which is sufficiently reactive to make it possible to use as a building block for larger carbon skeletons. A large number of molecules that are synthesised in cells are built from two-carbon acetyl groups. An acetyl group derives from ethanoate (acetate) and is named acetyl when it forms a group within a larger molecule. I
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Entrepreneurship and New Venture Formation
This course concentrates on the study of entrepreneurship, preparation of business plans, methods for evaluating new venture ideas, formulation and implementation of business strategies for new ventures, and the financing of new ventures. The course utilizes lecture, discussion, exercise, videotape, and case study as methods of learning. It integrates knowledge gained from the prior core business courses to sharpen the student's ability to "think entrepreneurially" and form new ventures.
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Cave Formation: Kane Cave
This video segment adapted from NOVA describes a simple experiment that confirmed the idea that microbes can accelerate the biogeochemical process of cave formation.
Author(s): WGBH Educational Foundation

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Cave Formation: Biogeochemical Cycles
This video segment adapted from NOVA chronicles the discoveries that led to a radical new theory in which living organisms, not just geological processes, play an active role in cave formation.
Author(s): WGBH Educational Foundation

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Georgian Britain - war and state formation
Georgian Britain - war and state formation
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Canon Formation - lecture handout
Canon Formation - lecture handout
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Guru Gobind Singh and the Formation of the Khalsa
Guru Gobind Singh and the Formation of the Khalsa
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Cavity formation in a tensile loaded alumina particulate composite
Horizontal stringers of fine oxide particles can be seen, parallel to the extrusion direction (horizontal). Under the tensile load, voids have nucleated at the interface between the matrix and the reinforcement particles, and some particle fracture has also occurred. Most voids form on planar faces normal to the tensile load (horizontal), and particularly where stringers of fine oxide particles also intersect the interface. These stringers provide interfacial flaws which may then be preferent
Author(s): DoITPoMS, University of Cambridge,Prof T W Clyne,

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