96 research outputs found
The physical geology and geography of Great Britain
No full textby A. C. RamsayHandschriftliches Geschenkexlibris: "From the author" 002320250_0001 Exemplar der ETH-BIBGeschenkexlibris-Etikette: "Legat von Herrn Professor Oswald Heer" 002320143_0002 Exemplar der ETH-BI
Principles of animal mechanics
No full textby Samuel HaughtonExlibrisetikette: "Legat von Herrn Professor Oswald Heer" 002320143_0002 Exemplar der ETH-BIBHandschriftliches Geschenkexlibris: "Professor Oswald Heer with the kind regards and best wishes of the author" 002320103_0001 Exemplar der ETH-BI
Catalogue of the Orthoptera of North America : described previous to 1867
No full textprepared for The Smithsonian Institution by Samuel H. ScudderExlibrisetikette: "Legat von Herrn Professor Oswald Heer" 002320143_0002 Exemplar der ETH-BIB, Rar 30425Handschriftliches Geschenkexlibris: "Prof. Dr. Oswald Heer from the author" Exemplar der ETH-BIB, Rar 3042
Observations of comets : from 611 B.C. to A.D.1640 : extracted from the Chinese annals
No full texttranslated, with introductory remarks and an appendix comprising the tables necessary for reducing Chinese time to European reckoning, and a Chinese celestial atlas by John WilliamsGeschenkexlibris-Etikette: "Legat von Herrn Prof. Dr. R. Wolf." 002281405_0001 Exemplar der ETH-BI
Memoir of the life and labours of the Rev. Jeremiah Horrox : author of "the transit of Venus over the sun" November 24th, 1639
No full textArundell Blount WhattonExlibrisetikette: "Buchhandlung Meyer & Zeller Rathhausplatz Zürich" 990021937500205503_0001 Exemplar der ETH-BIBGeschenkexlibris-Etikette: "Legat von Herrn Prof. Dr. R. Wolf" 002281405_0001 Exemplar der ETH-BI
Collapse dynamics of two-dimensional dry and immersed granular columns of elongated grains
No full textThe collapse dynamics and runout of columns of elongated grains in two dimensions are numerically investigated in dry and immersed conditions, by means of an unresolved finite elements/discrete elements model. The elongated grains are modeled as rigid aggregates of disks. The column aspect ratio is systematically varied from 0.125 to 16 in order to span short and tall columns. To analyze the effect of the initial grain orientation, columns with an initial grain orientation that is either random or aligned with a given direction are both considered. Collapse dynamics, both in dry and immersed cases, are found analogous to that previously observed for circular grain columns, particularly with respect to the power law dependency for the runout as a function of the column aspect ratio. The effect of the fluid mainly results in a decrease of the runout distance. Interestingly, the collapse dynamics and runout are not significantly affected by the initial orientation of the grains, except maybe in the extreme case where the grains are all horizontally oriented, which geometrically prevents the collapse. Finally, a scaling based on the front propagation energy is proposed allowing one to unify the runout of short to tall and dry to immersed columns in a single description, regardless of the initial grain orientation.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Geo-engineerin
Tensions and challenges resulting from the impact of the online gaming environment including its open innovation culture on the traditional regulated gambling and casino industry
No full textThe traditional gambling industry has been and still is currently under disruption caused by the more and more influential, regulated and commercially still fast increasing phenomena: online gambling. This trend has been even strengthened due to the Covid crisis, as soon as offline casino and gambling operators had to close their terrestrial venues. Not only traditional gambling operators, like casinos and/or slot arcades operators are facing this significant competition today, although gaming regulators, legislators and gambling technology providers, have to adopted permanently to this new situation. The online gambling segment has therefore nowadays a strong influence on the general players demands and behaviors, the product and game life cycles and also impact to and in terms of the innovation cultures of the traditional gambling technology providers. Technology casino and gambling providers are more or less having traditionally a closed innovation culture and environment. This master thesis objective is in particular, to find out and describe potential innovation related tensions and challenges,which are resulting from the effects and influence of the online gaming environment to the traditional gambling and casino industry. Furthermore, to see how the theoretical research results and its conclusions, do or do not match with the practical research conducted within that master thesis. On the practical part, a qualitative and inductive case study related to the objective has been conducted, with the aim to establish a grounded theory based in particularon the Gioia-methodology. The interviews were held mainly with stakeholders from an integrated global gambling industry giant, having actively both business segments, meaning the online and the offline part of the industry (B2B and B2C), within its group. The case study and its grounded theory shows, that most of the challenges and tensions resulting from the“clash” of cultures within the gambling industry and the case study example, are mainly placed within the internal space and therefore to be potentially solved primarily internally. The author proposes specific and concrete situative solutions for the challenges of the respective industry and company, in which the case study was conducted and outlines further, certain academic research topics, in particular when it comes to questions concerning business and innovation strategies and innovation matters related to acquisitions and mergers of traditional gambling operators/technology providers with online gaming actors and other entertainment corporations
Geometric control of hybrid systems
No full textsponsorship: The first author is a post -doctoral fellow of the Belgian American Educational Foundation. His work is partially supported by the National Science Foundation, USA under Grant No. OAC-1835443. The second author is a FNRS honorary Research Associate. This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme under grant agreement No 864017-L2C. RJ is also supported by the Innoviris Foundation and the FNRS, Belgium (Chist-Era Druid -net) . (National Science Foundation, USA|OAC-1835443, European Research Council (ERC) under the European Union|864017-L2C, Innoviris Foundation, FNRS, Belgium)status: Published onlin
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