Thematische Bibliographien / Partial phase change

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Auswahl der wissenschaftlichen Literatur zum Thema „Partial phase change“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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Zeitschriftenartikel zum Thema "Partial phase change"

Zálešák, Martin, Patrik Bouchal, Milan Ostrý, and Jiří Hejčík. "Experimental set up for the investigation of partial phase changes of phase change materials." EPJ Web of Conferences 264 (2022): 01049. http://dx.doi.org/10.1051/epjconf/202226401049.

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Thermal energy storage with phase change materials (PCMs) has attracted a lot of attention in the last several decades. Most PCMs do not change phase at a constant temperature but rather in a certain temperature range. It means that the PCM need to transit through its phase change temperature range to fully change phase from the solid state to the liquid state and vice-versa. The situation, in which the phase transition begins and/or ends within the phase change temperature range (in the mushy zone), is usually called a partial phase transition (or a partial phase change). The partial phase tr

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Gamisch, Sebastian, and Stefan Gschwander. "Modeling of phase change hysteresis during partial phase change with the “shift”-method." Journal of Physics: Conference Series 2766, no. 1 (2024): 012231. http://dx.doi.org/10.1088/1742-6596/2766/1/012231.

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Abstract For phase change materials (PCM) a difference between melting and crystallization temperature can occur, the so-called supercooling. For numerical modelling of this hysteresis effect, phenomenological approaches based on the experimentally determined enthalpy-temperature relations for melting and crystallization can be applied. It is challenging to model the behavior for partial phase transitions. The study presents a new phenomenological method, called the “shift”-method. It is derived especially but not only for PCMs with a multistage phase change during crystallization, like it can

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Zastawna-Rumin, Anna, Tomasz Kisilewicz, and Umberto Berardi. "Novel Simulation Algorithm for Modeling the Hysteresis of Phase Change Materials." Energies 13, no. 5 (2020): 1200. http://dx.doi.org/10.3390/en13051200.

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Latent heat thermal energy storage (LHTES) using phase change materials (PCM) is one of the most promising ways for thermal energy storage (TES), especially in lightweight buildings. However, accurate control of the phase transition of PCM is not easy to predict. For example, neglecting the hysteresis or the effect of the speed of phase change processes reduces the accuracy of simulations of TES. In this paper, the authors propose a new software module for EnergyPlus™ that aims to simulate the hysteresis of PCMs during the phase change. The new module is tested by comparing simulation results

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Braga, Stefania, Alessandro Sanasi, Alessandro Cabrini, and Guido Torelli. "Voltage-Driven Partial-RESET Multilevel Programming in Phase-Change Memories." IEEE Transactions on Electron Devices 57, no. 10 (2010): 2556–63. http://dx.doi.org/10.1109/ted.2010.2062185.

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GOUN, A. A., and B. YA ZEL'DOVICH. "CHANGE OF PARTIAL POLARIZATION OF A BEAM UNDER PHASE CONJUGATION." Journal of Nonlinear Optical Physics & Materials 10, no. 03 (2001): 371–75. http://dx.doi.org/10.1142/s0218863501000711.

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Possible change of the polarization state in the process of propagation is considered theoretically. We were able to suggest a mechanism that allows for a very unusual behavior of the Stokes parameters of the beam. Specially arranged phase conjugation procedure yields the decrease of only one (e.g. ∣ζ3∣∝∣(∣Ex∣2 - ∣Ey∣2)∣) Stokes component, while the degrees of 45%- and circular polarization, ζ1 and ζ2, are not changing at all.

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Su, Yifang, Yihang Zhang, Kaifeng Lin, et al. "Numerical Study on Resistance Change Characteristics of Phase Change Materials." Advances in Materials Science and Engineering 2021 (July 6, 2021): 1–12. http://dx.doi.org/10.1155/2021/7934173.

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Phase change materials are a type of emerging materials whose states will change under certain conditions, which then lead to changes in resistance. To study the characteristics of the phase change materials, a numerical simulation model of the resistive change unit based on the finite element method and the classic nucleation/growth theory is established, while the partial differential equations of electricity and heat conduction and the discrete formula of the finite element are also derived. According to the phase transition process of phase change materials, a crystalline-amorphous simulat

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Stern, Keren, Nicolas Wainstein, Yair Keller, et al. "Sub-Nanosecond Pulses Enable Partial Reset for Analog Phase Change Memory." IEEE Electron Device Letters 42, no. 9 (2021): 1291–94. http://dx.doi.org/10.1109/led.2021.3094765.

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Braga, Stefania, Alessandro Cabrini, and Guido Torelli. "Experimental Analysis of Partial-SET State Stability in Phase-Change Memories." IEEE Transactions on Electron Devices 58, no. 2 (2011): 517–22. http://dx.doi.org/10.1109/ted.2010.2090157.

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Braga, Stefania, Alessandro Cabrini, and Guido Torelli. "Transient effects in partial-RESET programming of phase-change memory cells." Solid-State Electronics 65-66 (November 2011): 250–55. http://dx.doi.org/10.1016/j.sse.2011.06.026.

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Pineda-Sanchez, Manuel, Ruben Puche-Panadero, Javier Martinez-Roman, Angel Sapena-Bano, Martin Riera-Guasp, and Juan Perez-Cruz. "Partial Inductance Model of Induction Machines for Fault Diagnosis." Sensors 18, no. 7 (2018): 2340. http://dx.doi.org/10.3390/s18072340.

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The development of advanced fault diagnostic systems for induction machines through the stator current requires accurate and fast models that can simulate the machine under faulty conditions, both in steady-state and in transient regime. These models are far more complex than the models used for healthy machines, because one of the effect of the faults is to change the winding configurations (broken bar faults, rotor asymmetries, and inter-turn short circuits) or the magnetic circuit (eccentricity and bearing faults). This produces a change of the self and mutual phase inductances, which induc

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Dissertationen zum Thema "Partial phase change"

Quinlan, Patrick Duane. "The development of a novel integrated collector storage solar water heater (ICSSWH) using phase change materials and partial evacuation." Thesis, Ulster University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.536464.

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The Integrated Collector Storage Solar Water Heater (ICSSWH) suffers significant ambient heat loss, especially during night-time and non-collection periods, due to its combined collection and storage function. A novel ICSSWH a Double Vessel Integrated Collector Storage (DVICS) comprised of two vertical concentric metal cylinders, with the resulting annulus filled with a Phase Change Material (PCM) and partial vacuum pressure, was designed to reduce thermal storage losses without compromising energy collection. The DVICS evolved through the development of 6 fabricated prototypes, including nove

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Petrášová, Anna. "Počítačové modelování teplotní hystereze při změně skupenství." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445463.

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This thesis deals with computer modeling of temperature hysteresis during phase change, namely complete and partial phase change. There is performed a review of methods for modeling temperature hysteresis based on the enthalpy method and the effective heat capacity method. In the case of complete phase change, there are several methods that use the effective heat capacity method, as well as the heat source method, which, on the contrary, is a certain analogy of the enthalpy method. The following are works dealing with modelling of partial phase change, the most interesting of which is due to t

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Ancellin, Matthieu. "Sur la modélisation physique et numérique du changement de phase interfacial lors d'impacts de vagues." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLN010/document.

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Dans le cadre du stockage de Gaz Naturel Liquéfié (GNL) dans des réservoirs flottants, tels que les méthaniers, les contraintes imposées à la cuve par le ballotement de la cargaison doivent être quantifiées. La plupart des études expérimentales ou numériques actuelles ne prennent pas en compte la possibilité de changement de phase entre le GNL et sa vapeur lors d'un impact du liquide sur la paroi. L'objectif de cette thèse est l'ajout de ce phénomène physique dans un code de mécanique des fluides numérique pour la simulation de l'impact d'une vague déferlante sur une paroi.Dans ce but, un état

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Kuravi, Sarada. "Numerical Study of Encapsulated Phase Change Material (EPCM) Slurry Flow in Microchannels." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4093.

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Heat transfer and flow characteristics of phase change material slurry flow in microchannels with constant heat flux at the base were investigated. The phase change process was included in the energy equation using the effective specific heat method. A parametric study was conducted numerically by varying the base fluid type, particle concentration, particle size, channel dimensions, inlet temperature, base heat flux and melting range of PCM. The particle distribution inside the microchannels was simulated using the diffusive flux model and its effect on the overall thermal performance of micr

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Delhorme, Maxime. "Thermodynamics and Structure of Plate-Like Particle Dispersions." Phd thesis, Université de Bourgogne, 2012. http://tel.archives-ouvertes.fr/tel-00818964.

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A considerable amount of mineral particles are found to have a plate-like shape. The work in this thesis concerns theoretical investigations, using a Monte Carlo method, of the properties of such particles in aqueous solutions. The objectives were first to create a model that could capture the essential physics of clay suspensions and also to understand the role of thermodynamics in certain chemical processes. For all investigations, the results are related to experimental studies. The acid-base behavior of clays have been studied, using the primitive model, and an excellent agreement between

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Li, Yaofa. "Experimental studies of Marangoni convection with buoyancy in simple and binary fluids." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53893.

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The flow in a layer of volatile fluid driven by a horizontal temperature gradient is a fundamental transport model for numerous evaporative passive cooling applications. When a thin film of a volatile liquid is subject to a horizontal temperature gradient, changes in the surface tension at the free surface lead to Marangoni stresses that drive the flow. In a thicker liquid layer, the flow is also affected by buoyancy. This thesis describes experimental studies of convection driven by a combined action of Marangoni stresses and buoyancy in simple and binary volatile liquid layers confined in a

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Reinhardt, Bruno. "Compréhension et évaluation du comportement des suspensions gaz-solide à forte charge dans les techniques de séparation aéraulique." Valenciennes, 1996. https://ged.uphf.fr/nuxeo/site/esupversions/a37df539-7e5e-4347-b8e6-7f15fd2cfb0f.

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L'optimisation du fonctionnement des cyclones peut être réalisée à partir d'études expérimentales sur maquettes. La première partie traite de la similitude: des caractérisations aérodynamiques (à vide) dans deux cyclones homothétiques mettent en évidence deux types d'écoulements et une similitude partielle. Dans une seconde partie, nous exposons les résultats des mesures de vitesse et de concentration qui permettent d'analyser la structure de l'écoulement. Nous présenterons dans la dernière partie les calculs réalisés à l'aide d'un code de simulation numérique.

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Tsafack, Chetsa Ghislain Landry. "System Profiling and Green Capabilities for Large Scale and Distributed Infrastructures." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2013. http://tel.archives-ouvertes.fr/tel-00946583.

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Nowadays, reducing the energy consumption of large scale and distributed infrastructures has truly become a challenge for both industry and academia. This is corroborated by the many efforts aiming to reduce the energy consumption of those systems. Initiatives for reducing the energy consumption of large scale and distributed infrastructures can without loss of generality be broken into hardware and software initiatives.Unlike their hardware counterpart, software solutions to the energy reduction problem in large scale and distributed infrastructures hardly result in real deployments. At the o

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BOUDJENANE, NASR EDDINE. "Ecoulement des melanges liquides-solides en conduites horizontale et verticale : perte de charge et reduction de frottement." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13148.

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Etude de la perte de charge et du mode d'ecoulement pour des melanges liquide solide en conduites horizontales et verticales. On met en evidence deux categories de particules : particules fines a ecoulement heterogene. On obtient une reduction de frottement de 45 % en ajoutant une quantite de particules fines au melange eau et grosses particules

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Nasani, Ahmad Muntaser. "Etude des phénomènes électrofluidodynamiques sur les gaz empoussiérés en écoulement turbulent : application au transport pneumatique." Poitiers, 1987. http://www.theses.fr/1987POIT2307.

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Analyse de l'influence de certains parametres sur le processus de tranfert de charges electriques au moment du contact d'une particule solide avec une plaque metallique. Etude de la charge d'impact en fonction de l'inclinaison de la plaque, de sa position et de sa charge initiale. Analyse theorique de l'ensemble des phenomenes d'ehd lies au transport pneumatique, en particulier des chutes de pression. Resultats experimentaux dans le cas de deux phases d'ecoulement : ecoulement en phase diluee et ecoulement en phase dense discontinue

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Bücher zum Thema "Partial phase change"

Sang-in, Chŏn, ред. Hanʼguk hyŏndaesa: Chinsil kwa haesŏk. Nanam Chʻulpʻan, 2005.

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Gupta, Joyeeta. Climate Change and the Future of International Order. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198828945.003.0003.

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On the basis of the scientific consensus on the dangers of climate change, this issue emerged as a partial order in the 1990s and was developed as an international regime in five phases. This chapter analyzes how the functional order evolved throughout the phases, and assesses the respective approaches, actors, and implications. Major steps for the development of the regime were the Kyoto Protocol (KP) and the Paris Agreement (PA) though the international agreements at times and the fight against climate change in general lack the full support from several key states like the USA, China, Japan

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Gomez Arana, Arantza. The first attempt to negotiate the association agreement. Manchester University Press, 2017. http://dx.doi.org/10.7228/manchester/9780719096945.003.0006.

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This chapter aims to explain the phase in EU-Mercosur relations which negotiated the association agreement without reaching a successful ending. Both parties developed those negotiations under the European Mercosur Interregional Cooperation Agreement (EMIFCA). It was agreed that this agreement would be carried out in two phases. The first phase related to the preparation of the ground for future negotiations by comparing standards, statistical systems, trade procedures, whilst the second phase focussed on trade liberalization. The second phase of this agreement was also focussed on the actual

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Epstein, Ben. Political Choice. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190698980.003.0004.

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Chapter 4 explains the concept of political choice, the second and most important phase of the political communication cycle (PCC). The political choice phase is the process in which political actors choose if and when to incorporate new information and communications technologies (ICTs) into their communication strategies. This chapter details the process that political actors or organizations go through when determining whether to innovate and helps to identify characteristics of those parties that are more likely to innovate earlier than others, known as innovativeness. Political choice is

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Iliopoulos, John, and Theodore N. Tomaras. Elementary Particle Physics. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780192844200.001.0001.

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Determining the nature of matter’s smallest constituents, and the interactions among them, is the subject of a branch of fundamental physics called “The Physics of Elementary Particles” – the subject of this book. During the last decades this field has gone through a phase transition. It culminated in the formulation of a new theoretical scheme, known as “The Standard Model”, which brought profound changes in our ways of thinking and understanding nature’s fundamental forces. Its agreement with experiment is impressive, to the extent that we should no longer talk about “The Standard Model” but

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Kumlin, Staffan, and Achim Goerres. Election Campaigns and Welfare State Change. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780198869214.001.0001.

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Abstract For over three decades, mature European welfare states have been on their way into an austerity phase marked by greater need and more insecure revenues. A number of reform pressures—including population ageing, unemployment, economic globalization, and increased migration—call into question the economic sustainability and normative underpinning of transfer systems and public services. And while welfare states long seemed resilient to growing challenges, it now seems clear that they are changing. This book examines how political leaders and the public respond to reform pressures at a p

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Aveyard, Bob. Surfactants. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198828600.001.0001.

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Characteristically, surfactants in aqueous solution adsorb at interfaces and form aggregates (micelles of various shapes and sizes, microemulsion droplets, and lyotropic liquid crystalline phases). This book is about the behaviour of surfactants in solution, at interfaces, and in colloidal dispersions. Adsorption at liquid/fluid and solid/liquid interfaces, and ways of characterizing the adsorbed surfactant films, are explained. Surfactant aggregation in systems containing only an aqueous phase and in systems with comparable volumes of water and nonpolar oil are each considered. In the latter

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Mitrović, Moreno. Configurational change in Indo-European coordinate constructions. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198747307.003.0002.

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This chapter presents a case study of word order change in coordinate constructions across a wide range of Indo-European languages. Early Indo-European languages had two available patterns of coordination at their disposal: one in which the coordinating particle was placed in first and another in which it was placed in the second position with respect to the second coordinand (‘Wackernagel effect’). Diachronically, the two competing configurations reduce to a single winning one, namely the head-initial one that all contemporary Indo-European languages retained. This is accounted for as the res

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Josefsson, Cecilia. Defending the Status Quo. Oxford University PressNew York, 2024. http://dx.doi.org/10.1093/oso/9780197788592.001.0001.

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Abstract Defending the Status Quo explores political elites’ resistance to electoral gender quota reforms—one of the most widespread electoral reforms of recent decades—to increase understanding of the significant variation in this policy and its impact. The book conceptualizes resistance and develops an original theoretical framework for studying resistance to gender-equality policy: the resistance stage framework. Anchored in feminist institutionalism and mapped onto the policy process, it outlines how status quo defenders adapt their resistance strategies to accommodate institutional and id

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Walsh, Bruce, and Michael Lynch. Using Molecular Data to Detect Selection: Signatures from Recent Single Events. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198830870.003.0009.

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Different types and phases of a selective sweep (hard, soft, partial, polygenic) generate different patterns of departures from neutrality, and hence require different tests. It is thus not surprising that a large number of tests have been proposed that use sequence information to detect ongoing, or very-recently completed, episodes of selection. This chapter critically reviews over 50 such tests, which use information on allele-frequency change, linkage disequilibrium patterns, spatial allele-frequency patterns, site-frequency spectrum data, allele-frequency spectrum data, and haplotype struc

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Buchteile zum Thema "Partial phase change"

Kumar, D., M. Alam, and J. Sanjayan. "A Novel Concrete Mix Design Methodology." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3330-3_46.

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AbstractConcrete mix design is the methodology for mixing binder, aggregate and water to achieve required physical, mechanical, and thermal properties. In particular, the physical properties depend on the volume fraction of each element in the concrete recipe. In this study we considered cement mortar, complying with ASTM C105, as the reference concrete with cement as the binder and silica sand as the aggregate. The reference mortar was denser with high thermal conductivity and compressive strength at given rheological properties. A denser concrete presents difficulty in material handling and

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Voigt, Immanuel, Axel Fickert, Hajo Wiemer, and Welf-Guntram Drossel. "Experimental Investigation of Passive Thermal Error Compensation Approach for Machine Tools." In Lecture Notes in Production Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34486-2_19.

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AbstractConventional approaches to counteract thermal issues in machine tools often require a significant amount of electrical energy input, such as in active cooling systems. An energy-efficient way for reducing thermal errors is to use passive components that redistribute heat introduced by feed drives and other internal heat sources. On the one hand, latent heat storage units can be integrated into the machine to enhance the thermal stability within the phase transition temperature range of the underlying phase change material. By using latent heat storage units, the impact of highly time-v

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Meyer, Gunter H. "The Numerical Solution of Phase Change Problems." In Structure and Dynamics of Partially Solidified Systems. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3587-7_10.

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Harikrishnan, S., and A. D. Dhass. "Effect of Particle Volume Concentration." In Thermal Transport Characteristics of Phase Change Materials and Nanofluids. CRC Press, 2022. http://dx.doi.org/10.1201/9781003163633-12.

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Steinbach, Ingo, and Hesham Salama. "Introduction." In Lectures on Phase Field. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-21171-3_1.

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AbstractThe chapter introduces the meaning of Phase Field from the aspect of thermodynamics on the one hand and numerics of moving boundary solutions on the other hand. A moving boundary solution here means the evolution, motion, of grain boundaries, phase boundaries or surfaces in multicrystalline materials as described by a set of partial differential equations. The thermodynamic aspect relates to the concept of an order parameter, identifying a phase, in thermodynamics in general. Here the interfaces, grain- or phase boundaries and surfaces, are described by a gradient contribution in the f

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Wollkind, D. J. "Nonlinear Analyses of Phase Change and Crystal Growth Phenomena." In Structure and Dynamics of Partially Solidified Systems. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3587-7_5.

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Joshi, C., A. Caldwell, P. Muggli, S. D. Holmes, and V. D. Shiltsev. "Outlook for the Future." In Particle Physics Reference Library. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-34245-6_12.

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AbstractThe charge separation between electrons and ions that exists within an electron plasma density wave can create large electric fields. In 1979 Tajima and Dawson first recognized that the longitudinal component of the field of a so-called “relativistic” wave (one propagating with a phase velocity close to c), could be used to accelerate charged particles to high energies in a short distance [1]. The accelerating gradient of such a plasma wave, Eo, can be approximated—assuming a total separation of electrons and ions in such a wave with wavelength λp = 2πc/ωp—as

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Bhattacharya, Rabi. "Phase Changes with Time and Multi-Scale Homogenizations of a Class of Anomalous Diffusions." In Probability and Partial Differential Equations in Modern Applied Mathematics. Springer New York, 2005. http://dx.doi.org/10.1007/978-0-387-29371-4_2.

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Robson, Robert E., Ronald D. White, and Malte Hildebrandt. "Basic Theoretical Concepts: Phase and Configuration Space." In Fundamentals of Charged Particle Transport in Gases and Condensed Matter. CRC Press, 2017. http://dx.doi.org/10.4324/9781315120935-2.

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Das, Moumita, Xingyu Tao, Yuqing Xu, and Jack C. P. Cheng. "A Blockchain-Based Secure Submission Management Framework for Design and Construction Phases." In CONVR 2023 - Proceedings of the 23rd International Conference on Construction Applications of Virtual Reality. Firenze University Press, 2023. http://dx.doi.org/10.36253/979-12-215-0289-3.32.

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AEC projects generate numerous versions of BIM models during the design and construction phases. This process is complicated by the sheer number of domains in large projects and the interlinkage of BIM deliverables (for example the structural BIM model follows the corresponding architectural BIM model). However, due to the generation of multiple versions and parallel design progress in different domains (especially in large projects), multi-domain delivery teams often fail to access and comply with the latest/required/approved design requirements during the progression of the design phase and

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Konferenzberichte zum Thema "Partial phase change"

Krishnamurthy, Ravi M., Rudolf H. Hausler, and Samarth (Sam) Tandon. "Implications of Using the Fugacity (Activity in the Gas Phase) of the Acid Gases in the Design of Qualification Testing of Oilfield Tubular Materials." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-12939.

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Abstract The transition from partial pressure to fugacity in the assessment of acid gas activity (concentration) for the design of qualification testing of metals to be used in sour service according to MR0175/ISO 151561,2,3 entails a number of important consequences. This transition came about in the wake of oil and gas production moving off-shore to ever higher pressures and temperatures. It was recognized that multiplying total pressure by the mol fraction of H2S in the “gas phase” could no longer reflect the physicochemical realities with respect to the reactions between H2S and the metal

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Jaeger, Paul, Luis F. Garfias-Mesias, and William H. Smyrl. "An Investigation into the Inhibition of Different VCIs for the Protection of Aluminum 2024 in the Presence of H2S and SO2." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98234.

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Abstract Aluminum was used to investigate the mass change associated with different Volatile Corrosion Inhibitors (VCIs) by using the Quartz Crystal Microbalance (QCM) and aluminum 2024 was characterized using a Scanning Electron Microscope (SEM). An atmosphere containing H2S, SO2, H2SO4, NH4Cl and KBr at a Critical Relative Humidity (CRH) of 80 and up to 100% and where temperatures were between 5 and 50°C was used to corrode the aluminum 2024. The SEM images of the uninhibited 2024 samples revealed a highly corroded surface, whereas the inhibited samples showed less attack after exposure to t

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Papavinasam, Sankara, Alex Doiron, and Tharani Panneerselvam. "Integration of Localized Internal Pitting Corrosion and Flow Models." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01262.

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Abstract A model was previously developed to predict internal pitting corrosion of oil and gas pipelines. The model considers the influence of temperature, total pressure, H2S partial pressure, CO2 partial pressure, the concentrations of sulphide, bicarbonate and chloride ions and the production rates of oil, gas, water, and solids. The model was based on experiments carried out in the laboratory at high pressure and high temperature under the operating conditions of the oil and gas pipelines and was validated by field trials and using field data. The model accounts for the statistical nature

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Hernandez Rueda, Javier, Lucas Mascaró-Burguera, Juan Ignacio Tomás Echavarría, et al. "Laser and pressure-induced phase-change transition in levitating single particle." In Ultrafast Phenomena and Nanophotonics XXIX, edited by Markus Betz and Abdulhakem Y. Elezzabi. SPIE, 2025. https://doi.org/10.1117/12.3040827.

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Braga, S., A. Sanasi, A. Cabrini, and G. Torelli. "Modeling of partial-RESET dynamics in Phase Change Memories." In ESSDERC 2010 - 40th European Solid State Device Research Conference. IEEE, 2010. http://dx.doi.org/10.1109/essderc.2010.5618176.

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Braga, Stefania, Alessand Cabrini, and Guido Torelli. "Data retention of partial-set states in phase change memories." In 2010 IEEE 3rd International Nanoelectronics Conference (INEC). IEEE, 2010. http://dx.doi.org/10.1109/inec.2010.5424897.

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Roday, Anand P., and Michael J. Kazmierczak. "Phase-Change in Finite Slabs With Time-Dependent Convective Boundary Conditions." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56734.

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The heat balance integral method is used to solve one-dimensional phase-change problem in a finite slab with time-dependent convective boundary condition, [T∞,1(t)], applied at the left face. The temperature, T∞,1(t), decreases linearly with time; the other face of the slab is subjected to a constant convective boundary condition with T∞,2 held fixed at the ambient temperature. Two initial conditions are investigated: temperature of the solid below the melting point (subcooled), and initially at the fusion temperature (Tf). The temperature, T∞,1(t) at time t = 0 is so chosen such that convecti

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Barz, Tilman, Aurelien Bres, and Johann Emhofer. "slPCMlib: A Modelica library for the prediction of effective thermal material properties of solid/liquid phase change materials (PCM)." In Asian Modelica Conference 2022, Tokyo, Japan, November 24-25, 2022. Linköping University Electronic Press, 2022. http://dx.doi.org/10.3384/ecp19356.

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slPCMlib predicts the effective thermal properties of solid/liquid phase change materials (PCM) showing a non-isothermal phase transition behavior. The effective properties are valid over the PCM functional temperature range where latent heat is absorbed and released. Different phenomenological phase transition models are implemented to account for temperature shifts in latent transition changes, e.g. due to multi-step transitions and thermal hysteresis. The library currently contains generic PCM and specific commercial paraffin-based and hydrated salt-based PCM (media). Its purpose is the ana

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Barz, Tilman, Aurelien Bres, and Johann Emhofer. "slPCMlib: A Modelica Library for the Prediction of Effective Thermal Material Properties of Solid/Liquid Phase Change Materials (PCM)." In Asian Modelica Conference 2022, Tokyo, Japan, November 24-25, 2022. Linköping University Electronic Press, 2022. http://dx.doi.org/10.3384/ecp19363.

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Zálešák, Martin, Pavel Charvát, Lubomír Klimeš, Ondřej Pech, and Patrik Bouchal. "Thermal Behavior of PCMs During Phase Transitions With Phase Change Hysteresis: Experimental Setup Development and Problems of Model Validation." In ASME 2023 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/imece2023-113269.

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Abstract Various models and approaches for phase transitions of phase change materials (PCMs) have been proposed in recent years. However, many of these models lack validation with experimental data, particularly the models for phase change hysteresis (PCH) and incomplete (partial) phase transitions. To address this issue, an experimental setup was designed, assembled and tested for potential validation of numerical models. The experiments involve monitoring of the heat flux and the temperature distribution in a PCM contained in a rectangular cavity with a heated/cooled wall. Peltier cells are

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Berichte der Organisationen zum Thema "Partial phase change"

Delwiche, Michael, Boaz Zion, Robert BonDurant, Judith Rishpon, Ephraim Maltz, and Miriam Rosenberg. Biosensors for On-Line Measurement of Reproductive Hormones and Milk Proteins to Improve Dairy Herd Management. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7573998.bard.

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The original objectives of this research project were to: (1) develop immunoassays, photometric sensors, and electrochemical sensors for real-time measurement of progesterone and estradiol in milk, (2) develop biosensors for measurement of caseins in milk, and (3) integrate and adapt these sensor technologies to create an automated electronic sensing system for operation in dairy parlors during milking. The overall direction of research was not changed, although the work was expanded to include other milk components such as urea and lactose. A second generation biosensor for on-line measuremen

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Choi, E., Y. I. Cho, and H. G. Lorsch. Effects of emulsifier on particle size of a phase change material in a mixture with water. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/6792238.

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Piot, Philippe. Phase-space tailoring and cooling of charged-particle beams for energy- and intensity-frontier applications. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/1887870.

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Choi, E., Y. I. Cho, and H. G. Lorsch. Effects of emulsifier on particle size of a phase change material in a mixture with water. Progress report, March 31, 1991--June 30, 1991. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/10148563.

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Lee, Wall, and Burch. PR-398-133719-R01 Inspection of Composite Repairs for Pipelines and Piping - Phase 2 NDE Trials. Pipeline Research Council International, Inc. (PRCI), 2014. http://dx.doi.org/10.55274/r0010557.

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The report reviews the research involved with Non-Destructive Examination (NDE) of composite repairs as applied to pipelines and piping. Four pipeline samples were evaluated each containing three repairs with an �open� training section and two �blind� sections (total of 12 repairs). Pipe defects included external corrosion wall loss and pitting represented by partial through-wall drilled holes. Application of the composite repairs, containing interlaminar defects and steel/composite debonding, was completed by four composite repair vendors. This included one carbon fiber and three glass fiber

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Belkin, Shimshon, Sylvia Daunert, and Mona Wells. Whole-Cell Biosensor Panel for Agricultural Endocrine Disruptors. United States Department of Agriculture, 2010. http://dx.doi.org/10.32747/2010.7696542.bard.

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Objectives: The overall objective as defined in the approved proposal was the development of a whole-cell sensor panel for the detection of endocrine disruption activities of agriculturally relevant chemicals. To achieve this goal several specific objectives were outlined: (a) The development of new genetically engineered wholecell sensor strains; (b) the combination of multiple strains into a single sensor panel to effect multiple response modes; (c) development of a computerized algorithm to analyze the panel responses; (d) laboratory testing and calibration; (e) field testing. In the course

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Sommer, Stefan, and Andrew W. Dale. Field-experiment to determine the short-term impact of bottom trawling on the benthic ecosystem in the German coastal Baltic Sea - Cruise No. AL616, 18.07. – 09.08.2024, Kiel (Germany) – Kiel (Germany), MGF-OSTSEE-2024. GEOMAR Helmholtz Centre for Ocean Research Kiel, 2025. https://doi.org/10.3289/cr_al616.

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Within the BMBF funded second phase of the DAM project „Ausschluss mobiler grund-berührender Fischerei (MGF) in marinen Schutzgebieten der Ostsee – Phase II (MGF-Ostsee-II)“ an experimental field study has been conducted to determine the effects of bottom trawling on the benthic ecosystem of the German coastal Baltic Sea. An area characterized with low fishing activity was selected in the Mecklenburger Bight ca. 5 km north of the town Kühlungsborn based on geo-acoustic and sedimentological criteria. In a part of this area referred to as High Impact area, high intensity trawling was simulated b

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Lupu, Noam. Weak Parties and the Inequality Trap in Latin America. Inter-American Development Bank, 2024. http://dx.doi.org/10.18235/0012891.

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Latin America is widely acknowledged as one of the most unequal regions of the world (Sánchez-Ancochea 2021). But it is also one of the most democratic, certainly as compared to other developing regions. These two facts seem difficult to reconcile. Both folk theories of democratic representation to borrow a phrase from (Achen and Bartels 2016) and canonical models in political economy would have us believe that democracies ought to reduce inequality through redistribution (e.g., Acemoglu and Robinson 2006; Meltzer and Richard 1981; Romer 1975). As inequality increases, the proportion of the po

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Queiroz, Cesar, Andrés Uribe, and Dennis Blumenfeld. Mechanisms for Financing Roads: A Review of International Practice. Inter-American Development Bank, 2016. http://dx.doi.org/10.18235/0009351.

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In the last two decades there has been an increased contribution of the private sector, through some form of public-private partnership (PPP), to finance transport infrastructure in general, and roads in particular, in both the developed and developing worlds. Such contribution has helped several countries to maintain, rehabilitate and expand their road networks, including the construction of new motorways, bridges and tunnels. Some governments have increased the public contribution to potential PPP road projects to make them attractive to private investors. Such support may take the form of g

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Wicker, Louise, and Nissim Garti. Entrapment and controlled release of nutraceuticals from double emulsions stabilized by pectin-protein hybrids. United States Department of Agriculture, 2004. http://dx.doi.org/10.32747/2004.7695864.bard.

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Original Objectives Specific objectives are to: (1) modify charge and hydrophobicity of pectins to improve emulsion stabilizing properties (2) develop emulsions that can be sterically stabilized using modified pectins and/or pectin/protein hybrids (3) obtain submicronal inner emulsion droplets (10-50 nanometers) with small and monodispersed double emulsion (1-2 μm) droplets with long-term stability (possibly by emulsified microemulsions) and (4) trigger and control the release at will. Background Methodology for encapsulation and controlled release of selected addenda, e.g. drugs, vitamins, ph

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