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Spectroscopic ellipsometry of interfacial phase transitions in fluid metallic systems: KxKCl1-x and Ga1-xBix [online]

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ISBN: 3937300082 Year: DOI: 10.5445/KSP/812004 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Chemistry (General)
Added to DOAB on : 2019-07-30 20:01:59

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The investigation of the interfacial phase transitions in fluid systems with short-range intermetallic interactions are of great interest. The phenomena were studied in two systems exhibiting a liquid-liquid miscibility gap: at the fluid/wall interface in fluid KxKCl1-x and at the fluid/vacuum interface of the Ga1 xBix alloys. To characterize the interfacial changes of the ultra thin films (composition, thickness and their evolution with time) the spectroscopic ellipsometry was performed over a wide spectral range. Whereas in the experiments on KxKCl1-x an existing ellipsometer could be used, a completely new UHV-apparatus including the in-situ phase modulation ellipsometer had to be developed for Ga1 xBix alloys. For the KxKCl1-x system new results on complete wetting at solid-liquid coexistence as well as in the homogenous liquid phase (prewetting) are presented. The spectra show the typical F center absorption which indicates that the film is a salt-rich phase. The thickness strongly increases approaching the monotectic from 30 to 440 nm, which is in agreement with the tetra point wetting scenario. For this interpretation a quantitative description of the excess Gibbs energy has been developed. For the Ga1 xBix system the results on complete wetting, surface freezing and oscillatory interfacial instabilities are presented. The high-precision spectra have been recorded approaching the liquid-liquid miscibility. These spectra have been modeled using a Ga-Bi effective medium approximation for the substrate covered by a film of liquid Bi. The measurements give evidence of tetra point wetting in the Ga-Bi system. First ellipsometric study of the surface freezing in Ga-Bi has been performed. Within the miscibility gap a very interesting effect of surface and bulk oscillatory instability was observed. The details of this process at present are not well understood, but a qualitative description is given.

Integrierte Lagesensorik für ein adaptives mikrooptisches Ablenksystem

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Book Series: Schriften des Instituts für Mikrostrukturtechnik am Karlsruher Institut für Technologie / Hrsg.: Institut für Mikrostrukturtechnik ISSN: 18695183 ISBN: 9783866448292 Year: Volume: 11 Pages: VI, 132 p. DOI: 10.5445/KSP/1000027008 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:01
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In einem mikrooptischen Ablenksystem sollen die sensorischen Eigenschaften der ferromagnetischen Formgedächtnislegierung Ni-Mn-Ga untersucht werden. Dabei kommt ein elektro-thermisch aktivierbarer, durch einen Permanentmagneten vorausgelenkter Dünnfilm-Biegeaktor zur Strahlablenkung zum Einsatz. Die Untersuchung der Eignung des magnetoresistiven Materials zur Positionsermittlung ist Ziel dieser Arbeit. Zur vergleichenden Bewertung werden kapazitive und resistive Referenzsensoren herangezogen.

Entwicklung miniaturisierter Aktorsysteme basierend auf magnetischen Formgedächtnislegierungen

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Book Series: Schriften des Instituts für Mikrostrukturtechnik am Karlsruher Institut für Technologie / Hrsg.: Institut für Mikrostrukturtechnik ISSN: 18695183 ISBN: 9783731505006 Year: Volume: 33 Pages: XI, 203 p. DOI: 10.5445/KSP/1000053101 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:59
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In this work, the actuation principles of single-crystal Ni-Mn-Ga alloys based on the magnetic shape memory effect (MSM-effect) and the coupling between their magnetic, mechanical and thermal properties, are investigated. The MSM effect is generated by the magnetically induced reorientation of the crystal structure. Thereby, the magnetic strain up to 10 % can be reached.

Development of Microactuators Based on the Magnetic Shape Memory Effect

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Book Series: Schriften des Instituts für Mikrostrukturtechnik am Karlsruher Institut für Technologie / Hrsg.: Institut für Mikrostrukturtechnik ISSN: 18695183 ISBN: 9783731501251 Year: Volume: 21 Pages: X, 153 p. DOI: 10.5445/KSP/1000036883 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:58
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The giant magneto-strain effect in Ni-Mn-Ga alloys is particularly attractive for actuator applications. Two different approaches are being pursued to develop MSM microactuators. To observe large deflections of Ni-Mn-Ga microactuators, the material should be exhibiting low twinning stress and large magnetic anisotropy. In addition, design rules and boundary conditions for operating the Ni-Mn-Ga actuator material are having significant importance for evolution of performance characteristics.

Applications of Computational Intelligence to Power Systems

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ISBN: 9783039217601 9783039217618 Year: Pages: 116 DOI: 10.3390/books978-3-03921-761-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-11-08 11:31:56
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Electric power systems around the world are changing in terms of structure, operation, management and ownership due to technical, financial, and ideological reasons. Power systems keep on expanding in terms of geographical areas, asset additions, and the penetration of new technologies in generation, transmission, and distribution. The conventional methods for solving the power system design, planning, operation, and control problems have been extensively used for different applications, but these methods suffer from several difficulties, thus providing suboptimal solutions. Computationally intelligent methods can offer better solutions for several conditions and are being widely applied in electrical engineering applications. This Special Issue represents a thorough treatment of computational intelligence from an electrical power system engineer’s perspective. Thorough, well-organised, and up-to-date, it examines in detail some of the important aspects of this very exciting and rapidly emerging technology, including machine learning, particle swarm optimization, genetic algorithms, and deep learning systems. Written in a concise and flowing manner by experts in the area of electrical power systems who have experience in the application of computational intelligence for solving many complex and difficult power system problems, this Special Issue is ideal for professional engineers and postgraduate students entering this exciting field.

Symmetry in Graph Theory

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ISBN: 9783038976585 Year: Pages: 340 DOI: 10.3390/books978-3-03897-659-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Mathematics --- Science (General)
Added to DOAB on : 2019-03-21 15:50:41
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This book contains the successful invited submissions to a Special Issue of Symmetry on the subject of ""Graph Theory"". Although symmetry has always played an important role in Graph Theory, in recent years, this role has increased significantly in several branches of this field, including but not limited to Gromov hyperbolic graphs, the metric dimension of graphs, domination theory, and topological indices. This Special Issue includes contributions addressing new results on these topics, both from a theoretical and an applied point of view.

Plasma Catalysis

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ISBN: 9783038977506 Year: Pages: 246 DOI: 10.3390/books978-3-03897-751-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemical Engineering --- Technology (General)
Added to DOAB on : 2019-04-05 10:34:31
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Plasma catalysis is gaining increasing interest for various gas conversion applications, such as CO2 conversion into value-added chemicals and fuels, N2 fixation for the synthesis of NH3 or NOx, methane conversion into higher hydrocarbons or oxygenates. It is also widely used for air pollution control (e.g., VOC

Novel Methods and Applications for Mineral Exploration

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ISBN: 9783039289431 / 9783039289448 Year: Pages: 264 DOI: 10.3390/books978-3-03928-944-8 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Geology --- Earth Sciences
Added to DOAB on : 2020-06-09 16:38:57
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This special volume offers a snapshot of the latest developments in mineral exploration, in particular, geophysical, geochemical, and computational methods. It reflects the cutting-edge applications of geophysics and geochemistry, as well as novel technologies, such as in artificial intelligence and hyperspectral exploration, methods that have profoundly changed how exploration is conducted. This special volume is a representation of these cutting-edge and pioneering methods to consider and conduct exploration, and should serve both as a valuable compendium of the most innovative exploration methodologies available and as a foreshadowing of the form of future exploration. As such, this volume is of significant importance and would be useful to any exploration geologist and company

Religious Experience in the Hindu Tradition

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ISBN: 9783039210503 9783039210510 Year: Pages: 196 DOI: 10.3390/books978-3-03921-051-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Social Sciences --- Sociology
Added to DOAB on : 2019-08-28 11:21:27
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This Special Issue of Religions brings together a talented group of international scholars who have studied and written on the Hindu tradition. The topic of religious experience is much debated in the field of Religious Studies, and here, we present studies of the Hindu religious experience explored from a variety of regions and perspectives. Our intention is to show that the religious experience has long been an important part of Hinduism, and should not be dismissed or considered as irrelevant. As a body of scholarship, these articles refine our understanding of the range and variety of religious experience in Hinduism. In addition to their substantive contributions, the authors also show important new directions in the study of the third-largest religion in the world, with over one billion followers.

Keywords

Hinduism --- renunciation --- Nirguna Bhakti --- devotion --- performance --- Sadhus --- India --- Indian Religions --- religious experience --- Ethnography --- tantra --- yantra --- Srividya --- Bengali home --- sacred domesticity --- shankh --- conch --- Lakshmi --- Manasa --- shongshar --- Indian music --- sacred sound --- Hinduism --- K?rtan --- Bhajan --- N?da-Brahman --- Dhrupad --- Khayal --- Bhakti --- Rasa --- Sang?ta --- R?ga --- T?la --- religious experience --- Erfahrung --- Erlebnis --- seeing --- being seen --- I --- not I --- S??khya --- Yoga --- puru?a --- prak?ti --- puru??rtha --- religious experience --- bhakti --- Tukaram --- Mahipati --- Mariyamman --- ammai --- poxes --- affliction --- Tamil --- religious experience --- Hinduism --- rain --- agricultural field --- goddess --- Hinduism --- religious experience --- Ramakrishna --- Vedanta --- pluralism --- Santmat --- Sants --- religious experience --- divine light and sound --- medieval Sant tradition --- moral conduct --- modern gurus --- ??nti --- dhy?n --- guru --- William James --- Yoga --- G?yatr? mantra --- Bhagavad G?t? --- Patañjali --- S??khya philosophy --- Gandhi --- Bhakti --- Ved?nta --- Yoga S?tra --- religious experience --- creativity --- modern Hinduism --- ??kta tantra --- tantric s?dhan? --- yoga --- ku??alin? --- ?akti --- arts & religions --- Tantric Studies --- ?r? Vidy? --- India --- Hinduism --- yoga --- tantra --- devotion --- meditation --- prayer --- saints --- brahman --- bh?va --- mah?bh?va --- bhakti --- trance --- sam?dhi --- mok?a --- dar?an --- bhakti --- anta?kara?a --- Yogas?tras --- sa?yama --- possession --- Balaji --- Ganges --- pilgrimage

Physiological Responses to Abiotic and Biotic Stress in Forest Trees

Authors: ---
ISBN: 9783039215140 9783039215157 Year: Pages: 294 DOI: 10.3390/books978-3-03921-515-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Environmental Engineering
Added to DOAB on : 2019-12-09 11:49:15
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As sessile organisms, plants have to cope with a multitude of natural and anthropogenic forms of stress in their environment. Due to their longevity, this is of particular significance for trees. As a consequence, trees develop an orchestra of resilience and resistance mechanisms to biotic and abiotic stresses in order to support their growth and development in a constantly changing atmospheric and pedospheric environment. The objective of this Special Issue of Forests is to summarize state-of-art knowledge and report the current progress on the processes that determine the resilience and resistance of trees from different zonobiomes as well as all forms of biotic and abiotic stress from the molecular to the whole tree level.

Keywords

drought --- mid-term --- non-structural carbohydrate --- soluble sugar --- starch --- Pinus massoniana --- salinity --- Carpinus betulus --- morphological indices --- gas exchange --- osmotic adjustment substances --- antioxidant enzyme activity --- ion relationships --- Populus simonii Carr. (poplar) --- intrinsic water-use efficiency --- tree rings --- basal area increment --- long-term drought --- hydrophilic polymers --- Stockosorb --- Luquasorb --- Konjac glucomannan --- photosynthesis --- ion relation --- Fagus sylvatica L. --- Abies alba Mill. --- N nutrition --- mixed stands --- pure stands --- soil N --- water relations --- 24-epiBL application --- salt stress --- ion contents --- chloroplast ultrastructure --- photosynthesis --- Robinia pseudoacacia L. --- elevation gradient --- forest type --- growth --- leaf properties --- Pinus koraiensis Sieb. et Zucc. --- Heterobasidion parviporum --- Heterobasidion annosum --- Norway spruce --- disturbance --- water availability --- pathogen --- infection --- Carpinus turczaninowii --- salinity treatments --- ecophysiology --- photosynthetic responses --- organic osmolytes --- ion homeostasis --- antioxidant enzymes --- glutaredoxin --- subcellular localization --- expression --- tapping panel dryness --- defense response --- rubber tree --- Ca2+ signal --- drought stress --- living cell --- Moso Bamboo (Phyllostachys edulis) --- plasma membrane Ca2+ channels --- signal network --- Aleppo pine --- Greece --- photosynthesis --- water potential --- ?13C --- sap flow --- canopy conductance --- climate --- molecular cloning --- functional analysis --- TCP --- DELLA --- GA-signaling pathway --- Fraxinus mandshurica Rupr. --- wood formation --- abiotic stress --- nutrition --- gene regulation --- tree --- bamboo forest --- cold stress --- physiological response --- silicon fertilization --- plant tolerance --- reactive oxygen species --- antioxidant activity --- proline --- Populus euphratica --- salt stress --- salicylic acid --- malondialdehyde --- differentially expressed genes --- n/a

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