Relevant bibliographies by topics / Potential flow. eng

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Potential flow. eng'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Potential flow. eng"

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Honório, Michelle da Silva, Roberta Vieira Nunes Pinheiro, Isabella Almeida Costa, and Paulo Sérgio Scalize. "Comparison of two methods for determining Q95 reference flow in the mouth of the surface catchment basin of the Meia Ponte river, state of Goiás, Brazil." Open Engineering 10, no. 1 (2020): 469–76. http://dx.doi.org/10.1515/eng-2020-0053.

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AbstractThe preferred data for analyzing water availability are those of historical flow series of the sources of interest; however, most Brazilian watersheds do not have sufficient fluviometric monitoring. Such cases require techniques for transposing data from one region to another, otherwise known as ‘flow regionalization’. The present work aimed to compare the method proposed by Secretaria de Meio Ambiente e Desenvolvimento Sustentável (SEMAD) of the state of Goiás with the traditional method of regionalization for determining reference flow at the mouth of the surface catchment basin of t
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Badano, Nicolás, Rodolfo Espina Valdés, and Eduardo Álvarez Álvarez. "Tidal current energy potential of Nalón river estuary assessment using a high precision flow model." Open Engineering 8, no. 1 (2018): 118–23. http://dx.doi.org/10.1515/eng-2018-0015.

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Abstract Obtaining energy from tide currents in onshore locations is of great interest due to the proximity to the points of consumption. This opens the door to the feasibility of new installations based on hydrokinetic microturbines even in zones of moderate speed. In this context, the accuracy of energy predictions based on hydrodynamic models is of paramount importance. This research presents a high precision methodology based on a multidimensional hydrodynamic model that is used to study the energetic potential in estuaries. Moreover, it is able to estimate the flow variations caused by mi
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Lai, W. Michael, Van C. Mow, Daniel D. Sun, and Gerard A. Ateshian. "On the Electric Potentials Inside a Charged Soft Hydrated Biological Tissue: Streaming Potential Versus Diffusion Potential." Journal of Biomechanical Engineering 122, no. 4 (2000): 336–46. http://dx.doi.org/10.1115/1.1286316.

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The main objective of this study is to determine the nature of electric fields inside articular cartilage while accounting for the effects of both streaming potential and diffusion potential. Specifically, we solve two tissue mechano-electrochemical problems using the triphasic theories developed by Lai et al. (1991, ASME J. Biomech Eng., 113, pp. 245–258) and Gu et al. (1998, ASME J. Biomech. Eng., 120, pp. 169–180) (1) the steady one-dimensional permeation problem; and (2) the transient one-dimensional ramped-displacement, confined-compression, stress-relaxation problem (both in an open circ
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Al-Mistarehi, Bara’ W., Ahmad H. Alomari, and Mohamad S. Al Zoubi. "Investigation of saturation flow rate using video camera at signalized intersections in Jordan." Open Engineering 11, no. 1 (2020): 216–26. http://dx.doi.org/10.1515/eng-2021-0021.

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AbstractThis study aimed to investigate a potential list of variables that may have an impact on the saturation flow rate (SFR) associated with different turning movements at signalized intersections in Jordan. Direct visits to locations were conducted, and a video camera was used. Highway capacity manual standard procedure was followed to collect the necessary traffic data. Multiple linear regression was performed to classify the factors that impact the SFR and to find the optimal model to foretell the SFR. Results showed that turning radius, presence of camera enforcement, and the speed limi
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Strohmandl, Jan, and Zdeněk Čujan. "Risk Minimisation in Integrated Supply Chains." Open Engineering 9, no. 1 (2019): 593–99. http://dx.doi.org/10.1515/eng-2019-0082.

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AbstractIntegrated supply chains, due to their complexity, are vulnerable in relation to various types of risks, especially in the present turbulent market environment, characterised by increased demand for effectiveness of the individual logistic activities, extended customer service and decreased cost. The supply chain risks are represented by any threatening event that may unexpectedly disrupt or restrict material flow, or directly stop the scheduled logistic or manufacturing activities. Supply chain risk management includes risk identification, analysis and implementation of measures again
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Chomiuk, Bartłomiej, and Janusz Skrzypacz. "Comparison of energy parameters of a centrifugal pump with a multi-piped impeller in cooperation either with an annular channel and a spiral channel." Open Engineering 8, no. 1 (2018): 513–22. http://dx.doi.org/10.1515/eng-2018-0063.

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Abstract The article presents results of numerical analyzes, which raise a subject of influence of the cooperation the multi-piped impeller with a rationalized flow geometry of annular casing and volute casing for liquid flow through centrifugal pump and their operating parameters in the extremely low specific speed nq<10. The multi-piped impeller (patented by authors) is a major alternative to classic vane impellers. The stator type is responsible for the conversion of the kinetic energy of the liquid by the impeller outlet into potential energy, which determines the overall efficiency of
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Scalize, Paulo Sergio, Samara Silva Soares, Andreia Cristina Fonseca Alves, et al. "Use of condensed water from air conditioning systems." Open Engineering 8, no. 1 (2018): 284–92. http://dx.doi.org/10.1515/eng-2018-0031.

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Abstract Facing the growing demand for water, discussions on environmental sustainability and conservation of this resource have become increasingly important. Among the possibilities for water conservation, air conditioning systems have potential applicability because, during their operation, water is generated via the condensation of air humidity, which is normally discarded. Thus, the objective of this work was to evaluate the water released by air conditioning equipment (condensed water) installed in the Laboratory of Water Analysis (LAnA) qualitatively and quantitatively, in order to veri
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Elad, D., R. D. Kamm, and A. H. Shapiro. "Mathematical simulation of forced expiration." Journal of Applied Physiology 65, no. 1 (1988): 14–25. http://dx.doi.org/10.1152/jappl.1988.65.1.14.

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Flow limitation during forced expiration is simulated by a mathematical model. This model draws on the pressure-area law obtained in the accompanying paper, and the methods of analysis for one-dimensional flow in collapsible tubes developed by Shapiro (Trans. ASME J. Biomech. Eng. 99: 126-147, 1977). These methods represent an improvement over previous models in that 1) the effects of changing lung volume and of parenchymal-bronchial interdependence are simulated; 2) a more realistic representation of collapsed airways is employed; 3) a solution is obtained mouthward of the flow-limiting site
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Mu-Mosley, Hong, Lauren B. Ostermann, Ran Zhao, et al. "Venetoclax Enhances Anti-Leukemia Activity of CD123-Specific BiTE-Secreting T-Cells in AML." Blood 136, Supplement 1 (2020): 12–13. http://dx.doi.org/10.1182/blood-2020-139625.

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Background: CD123 is frequently expressed in hematologic malignancies including AML. CD123 has been a potential immunotherapeutic target in AML due to its association with leukemic stem cells that play an essential role in disease progression and relapse. Our previous study using T-cells secreting CD123/CD3-bispecific T-cell engagers (BiTEs) (CD123-ENG T-cells) has shown activity in preclinical studies, recognizing and killing acute myeloid leukemia (AML) blasts in vitro and in vivo. CD123-ENG T-cells secrete bispecific molecules that recognize CD3 (T-cells) and CD123 (AML blasts), and are abl
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Ehrich, F. F., Z. S. Spakovszky, M. Martinez-Sanchez, et al. "Unsteady Flow and Whirl-Inducing Forces in Axial-Flow Compressors: Part II—Analysis." Journal of Turbomachinery 123, no. 3 (2000): 446–52. http://dx.doi.org/10.1115/1.1370165.

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An experimental and theoretical investigation was conducted to evaluate the effects seen in axial-flow compressors when the centerline of the rotor becomes displaced from the centerline of the static structure of the engine, thus creating circumferentially nonuniform rotor-tip clearances. This displacement produces unsteady flow and creates a system of destabilizing forces, which contribute significantly to rotor whirl instability in turbomachinery. These forces were first identified by Thomas (1958. Bull. AIM, 71, No. 11/12, pp. 1039–1063.) for turbines and by Alford (1965. J. Eng. Power, Oct
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Dissertations / Theses on the topic "Potential flow. eng"

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Souza, Luís Henrique Gazeta de. "Aplicação da transformada integral generalizada no escoamento potencial em contrações /." Ilha Solteira : [s.n.], 2009. http://hdl.handle.net/11449/88871.

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Orientador: João Batista Aparecido<br>Banca: Cassio Roberto Macedo Maia<br>Banca: Alcides Padilha<br>Resumo: Realiza-se a formulação matemática do escoamento potencial no interior de contrações bidimensionais usando sistemas de coordenadas cartesianas e cilíndricas. Para tal considera-se que as geometrias das contrações sejam bidimensionais no sistema de coordenadas cartesianas e bidimensionais com simetria axial no sistema de coordenadas cilíndricas. A formulação é adaptada a partir das equações tridimensionais de Euler em coordenadas cartesianas e cilíndricas, fazendo-se as hipóteses de bidi
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Xu, Guochang. "Substance flow analysis of rare earth elements and precious metals from end-of-life vehicles including next-generation vehicles." Kyoto University, 2019. http://hdl.handle.net/2433/243311.

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De, Kock Frederick Gideon. "The neuropsychological measure (EEG) of flow under conditions of peak performance." Thesis, 2014. http://hdl.handle.net/10500/14359.

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Flow is a mental state characterised by a feeling of energised focus, complete involvement and success when fully immersed in an activity. The dimensions of and the conditions required for flow to occur have been explored in a broad spectrum of situational contexts. The close relationship between flow and peak performance sparked an interest in ways to induce flow. However, any process of flow induction requires a measure to trace the degree to which flow is in fact occurring. Self-reports of the flow experience are subjective and provide ad hoc information. Psycho-physiological measures, such
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Books on the topic "Potential flow. eng"

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Jacobsen, Dean, and Olivier Dangles. Energy flow and species interactions at the edge. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198736868.003.0007.

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Chapter 7 elucidates the relationships between the structure and functioning of aquatic ecosystems at high altitude through the description of material cycles and food webs. Following the landscape continuum model, material cycling is profoundly influenced by the physical structure of the waterscape (e.g. vegetation cover); as a result a great diversity of energetic pathways characterize high altitude waterscapes, along an autotrophy–heterotrophy gradient. Similarly, high altitude aquatic food webs embrace a great diversity of trophic compartments, feeding strategies, and processes (trophic ca
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Michel, Christoph M., and Bin He. EEG Mapping and Source Imaging. Edited by Donald L. Schomer and Fernando H. Lopes da Silva. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190228484.003.0045.

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This chapter describes methods to analyze the scalp electric field recorded with multichannel electroencephalography (EEG). With advances in high-density EEG, systems now allow fast and easy recording from 64 to 256 channels simultaneously. Pattern-recognition algorithms can characterize the topography of scalp electric fields and detect changes in topography over time and between experimental or clinical conditions. Methods for estimating the sources underlying the recorded scalp potential maps have increased the spatial resolution of EEG. The use of anatomical information in EEG source recon
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Kortgen, Andreas, and Michael Bauer. Hepatic function in the critically ill. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0175.

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The liver with its parenchymal and non-parenchymal cells plays a key role in the organism with manifold functions of metabolism, synthesis, detoxification, excretion, and host response. This requires a portfolio of different tests to obtain an overview of hepatic function. In the critically ill hepatic dysfunction is common and potentially leading to extrahepatic organ dysfunctions culminating in multi-organ failure. Conventional laboratory measures are used to evaluate hepatocellular damage, cholestasis, or synthesis. They provide valuable (differential) diagnostic data and can yield prognost
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Fischer-Lichte, Erika. Only with Beauty Man Shall Play. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199651634.003.0003.

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Chapter 1, ‘Only with Beauty Man Shall Play. Goethe’s Production of Ion in Weimar (1802)’, proceeds from Goethe’s and Schiller’s responses to the French Revolution. While Goethe hailed the Bildung of the individual—that is, the development of his potential to the full—as the substitute for a revolution, Schiller believed that it was the aesthetic education of the individual that would finally result in a free state. The production of a Greek tragedy as an autonomous work of art that precluded the formation of empathy in the spectator (contrary to the domestic tragedy) was supposed to offer the
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Moreno-Lax, Violeta. Carrier Sanctions and ILOs: Anticipated Enforcement of Visa Requirements through ‘Imperfect Delegation’—Diverting Flows, Entrenching Unsafety. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198701002.003.0005.

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Member States started adopting carrier liability regulations from the mid-1980s, seemingly as a direct response to increasing numbers of asylum requests, with immigration liaison officer (ILO) schemes proliferating afterwards. Techniques of ‘remote control’ have now been communautarised, providing an additional layer of control. Both carriers and ILOs have privileged access to migrants bound to the EU already at the pre-entry phase. Making them responsible for the anticipated enforcement of visas has the potential to block lines of regular (and safe) access to those in need of international pr
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Hendrickx, Jan F. A., André van Zundert, and Andre De Wolf. Inhaled anaesthetics. Edited by Michel M. R. F. Struys. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199642045.003.0014.

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Inhaled anaesthetic drugs are administered via the lungs to provide ‘general anaesthesia’. They are considered complete anaesthetics because they in and by themselves can in most patients ensure all clinical end-points that are required for ‘general anaesthesia’ (unconsciousness, immobility, and haemodynamic stability). The dose–response curve of each clinical end-point is conveniently defined by its mid-point, the end-expired concentration Fa that ensures response suppression in 50 % of the patients (MACawake, MAC, and MACBAR). By understanding the dose–response curves and the factors that in
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Yusuf, Moeed. Brokering Peace in Nuclear Environments. Stanford University Press, 2018. http://dx.doi.org/10.11126/stanford/9781503604858.001.0001.

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This book is the first to theorize third party mediation in crises between regional nuclear powers. Its relevance flows from two of the most significant international developments since the end of the Cold War: the emergence of regional nuclear rivalries; and the shift from the Cold War’s bipolar context to today’s unipolar international setting. Moving away from the traditional bilateral deterrence models, the book conceptualizes crisis behavior as “brokered bargaining”: a three-way bargaining framework where the regional rivals and the ‘third party’ seek to influence each other to behave in
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Book chapters on the topic "Potential flow. eng"

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Heinonen, Jukka, and Juudit Ottelin. "Carbon Accounting for Regenerative Cities." In Future City. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71819-0_6.

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AbstractThe carbon budget for limiting global warming to the targeted 1.5 ° is running out. Cities have a central role in climate change mitigation, as the vast majority of all greenhouse gas emissions occur to satisfy the energy and material needs of cities and their residents. However, cities typically only account for their direct local emissions from transportation, industry, and energy production. This may lead to the so-called low-carbon illusion of cities following from producing little and reporting low emissions, while extensively relying on imported material and energy flows. Consumption-based accounting, or carbon footprinting, enables overcoming this problem by assigning the emissions to the end user regardless of the place of production. However, currently the carbon footprinting methods only capture the harm side, and not the potential positive effects, the restorative or regenerative impacts, caused by green infrastructure, reforestation, and carbon capture and storage, for example. These positive impacts are sometimes called “carbon handprint”. In this chapter, we create a handprint-extended carbon footprinting method to illustrate how restorative and regenerative impacts can be incorporated consistently in the carbon accounting of cities and carbon footprints of consumers. We also link the discussion on regenerative cities with the remaining carbon budgets.
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Furbish, David Jon. "Conservation of Energy." In Fluid Physics in Geology. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780195077018.003.0013.

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We briefly considered in Chapter 6 a geologically important class of flows—buoyancy driven flows—in which thermal effects hold an essential part in creating the forces that induce flow. We also should recall that fluid properties such as viscosity can vary with temperature. As fluids are heat-conducting media, taking into account the thermal energy conditions and heat flow within a fluid therefore is often an essential part of describing a flow field. Thermal energy, however, is not transported merely by conduction; in a moving fluid, thermal energy also is advected from position to position. In addition, recall that the thermal energy of a fluid, according to the first law of thermodynamics, is inextricably coupled with energy in the form of work performed between a fluid element and its surroundings. It is therefore important to consider the mechanical energy of a fluid when describing its thermal conditions. To this end, the developments below concern conservation of energy in both thermal and mechanical forms. Analogous to our treatment of conservation of mass, we will derive equations that describe a condition—conservation of energy—which must be satisfied at each coordinate position in a fluid. An important outcome of our development of expressions for conservation of energy is a set of dynamical equations for the special case of an ideal fluid. In component form, these are referred to as Euler’s equations, and arise from conservation of purely mechanical energy, neglecting thermal forms. (We will derive Euler’s equations again in Chapter 10 using an explicit treatment of the forces involved in fluid motion.) Conservation of energy also applies to flow in porous media; the relevant expressions are similar to those for purely fluid flow, but with several important differences that arise from the two-phase character (solid and fluid) of flow in porous media. In relation to this topic, we also will develop the idea of Hubbert’s potential, and the relation of this potential to piezometric head. This is a cornerstone of the theory of flow in porous media. Our objective is to illustrate how Hubbert’s potential, and head, are obtained from applying the idea of conservation of mechanical energy to a fluid.
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Gray, William G., and Michael A. Celia. "Incorporation of Interfacial Areas in Models of Two-Phase Flow." In Vadose Zone Hydrology. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780195109900.003.0006.

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The mathematical study of flow in porous media is typically based on the 1856 empirical result of Henri Darcy. This result, known as Darcy’s law, states that the velocity of a single-phase flow through a porous medium is proportional to the hydraulic gradient. The publication of Darcy’s work has been referred to as “the birth of groundwater hydrology as a quantitative science” (Freeze and Cherry, 1979). Although Darcy’s original equation was found to be valid for slow, steady, one-dimensional, single-phase flow through a homogeneous and isotropic sand, it has been applied in the succeeding 140 years to complex transient flows that involve multiple phases in heterogeneous media. To attain this generality, a modification has been made to the original formula, such that the constant of proportionality between flow and hydraulic gradient is allowed to be a spatially varying function of the system properties. The extended version of Darcy’s law is expressed in the following form: qα=-Kα . Jα (2.1) where qα is the volumetric flow rate per unit area vector of the α-phase fluid, Kα is the hydraulic conductivity tensor of the α-phase and is a function of the viscosity and saturation of the α-phase and of the solid matrix, and Jα is the vector hydraulic gradient that drives the flow. The quantities Jα and Kα account for pressure and gravitational effects as well as the interactions that occur between adjacent phases. Although this generalization is occasionally criticized for its shortcomings, equation (2.1) is considered today to be a fundamental principle in analysis of porous media flows (e.g., McWhorter and Sunada, 1977). If, indeed, Darcy’s experimental result is the birth of quantitative hydrology, a need still remains to build quantitative analysis of porous media flow on a strong theoretical foundation. The problem of unsaturated flow of water has been attacked using experimental and theoretical tools since the early part of this century. Sposito (1986) attributes the beginnings of the study of soil water flow as a subdiscipline of physics to the fundamental work of Buckingham (1907), which uses a saturation-dependent hydraulic conductivity and a capillary potential for the hydraulic gradient.
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"The growing development potential of other official flows." In Development Co-operation Report 2014. OECD, 2014. http://dx.doi.org/10.1787/dcr-2014-8-en.

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Geddes, Andrew. "The Normality of Crisis in the European Union." In Governing Migration Beyond the State. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198842750.003.0005.

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The European Union’s responses to migration have been powerfully influenced by understandings and representations of the potential for large-scale and potentially uncontrollable migration flows. These have had important effects on repertoires of migration governance and on what actors know how to do, as well as on their social expectations about role. A key conclusion is that while migration crises catch attention, it the understandings and representations of the normality of migration that have shaped European and EU migration governance. This normality is closely linked to concern about uncontrollable flows that have shaped EU cooperation since the end of the Cold War.
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Yapa Bandara, Kosala, Subhasis Thakur, and John G. Breslin. "End-to-End Tracing and Congestion in a Blockchain." In Advances in Data Mining and Database Management. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-6650-3.ch004.

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Modern supply chain applications are complex systems that play an important role in many different sectors. Supply chain management systems are implemented to handle increasing complexity and flows of goods. However, most of these systems are also increasing the complexity of providing trust and a global view of transactions in a distributed supply chain system. Blockchain technology introduces a new architectural style to support the traceability and trust of transactions performed by participants in a network. This chapter uses this emerging technology to realize a supply chain use case from JLP Meats in the UK with improved transparency, trust, and end-to-end querying while discussing potential challenges of realizing large-scale enterprise blockchain applications. The process of farm-to-fork is implemented and tested for traceability, item recall, block analysis, congestion enabling food safety, and sustainable agriculture. Potential challenges are highlighted in complex supply chains that need heterogeneous trade compliance and scalability.
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Shapiro, Howard M. "Fluorescent Probes." In Flow Cytometry for Biotechnology. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195183146.003.0006.

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In the jargon of cytometry, cellular characteristics, such as size, nucleic acid content, and membrane potential, are usually referred to as parameters, a term that is also used for the physical characteristics, such as absorption, light scattering, and fluorescence intensity, that are measured by cytometric instrumentation. Fluorescence, as a physical parameter, plays a key role in the detection of probes on beads for multiplexed analysis. Cellular parameters can be classed as intrinsic or extrinsic. Intrinsic cellular parameters are those that can be measured without the use of a reagent; measurement of extrinsic parameters requires the use of reagents, which are almost always referred to as probes, thereby occasioning confusion among molecular biologists new to cytometry. Cellular parameters are also characterized as structural or functional; DNA and RNA content and the presence and copy number of an antigen or nucleic acid sequence are structural parameters, whereas internal pH, membrane potential, and enzyme activity are functional parameters. The distinction between structural and functional parameters blurs at the edge, but the concept has been generally useful. Fluorescent probes allow measurement of the widest variety of extrinsic cellular parameters. For an atom or molecule to fluoresce, it must first absorb a photon, raising an electron to a higher energy level that is known as an excited state. Excitation by absorption requires only about a femtosecond. Fluorescence occurs when the electron loses all or some of the absorbed energy by emission of a photon. The fluorescence lifetime, that is, the period between excitation and emission, is typically on the order of a few nanoseconds for fluorescent organic materials but is notably longer (hundreds of microseconds) for some materials (e.g., lanthanide chelates). In almost all cases, some of the excitation energy is lost nonradiatively by transitions between different vibrational energy levels of the electronic excited state; this loss requires that the emitted energy be less than the energy absorbed, meaning that the fluorescence emission will be at a longer wavelength than the excitation. The difference between the principal excitation and emission maxima in the fluorescence spectrum is known as the Stokes shift, honoring George Stokes, who first described fluorescence in the mid-1800s. Typical Stokes shifts are no more than a few tens of nanometers.
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Nica, Ana Maria. "The Chinese Incoming Segment." In New Trends and Opportunities for Central and Eastern European Tourism. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1423-8.ch006.

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The tourism domain has represented, for a long time, one of the main sources of revenue for the different destinations that have awarded a special focus to its development and enrichment. Its types of impacts, whether economic, social, or environmental, bring both great benefits and pose a certain level of risk. Regardless of the latter, people will be always willing to travel to get to know new cultures, and there will always be competition between destinations at the time of attracting and maintaining tourism flows. The last decades have been marked by the emergence of a new tourist flow (i.e., the Chinese outbound segment), which brings great economic potential to the Central and Eastern Europe region. To this end, this chapter focuses on presenting the current situation of the presence of the Chinese segment within CEE and some of the specificities of their tourist consumer behavior.
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Reich, Simon, and Peter Dombrowski. "A Maritime Strategy of Primacy in the Persian Gulf." In The End of Grand Strategy. Cornell University Press, 2018. http://dx.doi.org/10.7591/cornell/9781501714627.003.0004.

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This chapter examines the unilateral American strategy of primacy in the Strait of Hormuz that borders Iran. It begins with a vignette about sea-basing. It notes the historic justification for the Navy’s presence (to ensure the flow of oil to the US and uninterrupted commercial shipping) and describes how American behavior has been, and remains, consistent with that strategy. Then is goes on to note the decline in the importance of those factors – and discusses (paradoxically) why the US continues the strategy (as potential leverage against China which still requires Gulf oil).
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Perera, Divaka, and Simon Redwood. "Percutaneous coronary intervention in patients with impaired left ventricular function." In Oxford Textbook of Interventional Cardiology. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780199569083.003.017.

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Changes in left ventricular (LV) function are an early manifestation of the ischaemic cascade and often precede the well-recognized markers of ischaemia, such as ST segment changes or chest pain. Decreased ventricular compliance, diminished regional and global contractility, and elevated end-diastolic pressure occur within a few seconds of interruption of coronary blood flow by balloon occlusion, whereas recovery of these parameters can lag several minutes behind balloon deflation, restoration of blood flow, and resolution of electrocardiogram (ECG) changes. Prolonged postischaemic myocardial dysfunction, or stunning, can occur following recurrent ischaemia, which may persist for several hours or days even when blood flow is restored. The impact of transient or repetitive coronary occlusion on LV function is rarely of clinical consequence when percutaneous coronary intervention (PCI) is performed in patients with preserved ventricular function, but is potentially hazardous in those who have LV impairment at the outset, particularly when there is a large amount of myocardium at risk. These patients have attenuated haemodynamic reserve and may recover incompletely from post-ischaemic stunning, which increases the risk of entering a deteriorating spiral of decreasing cardiac output and worsening ischaemia that could culminate in cardiogenic shock or ventricular arrhythmias. Furthermore, patients with impaired LV function tend to be older and have more advanced comorbidities, which are independently associated with an adverse outcome following any form of revascularization.
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Conference papers on the topic "Potential flow. eng"

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Shao, Yan-Lin, and Odd M. Faltinsen. "Towards Efficient Fully-Nonlinear Potential-Flow Solvers in Marine Hydrodynamics." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83319.

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Solving potential-flow problems using the Boundary Element Method (BEM) is a strong tradition in marine hydrodynamics. An early example of the application of BEM is by Bai &amp; Yeung [1]. The bottleneck of the conventional BEM in terms of CPU time and computer memory arises as the number of unknowns increases. Wu &amp; Eatock Taylor [2] suggested that the Finite Element Method (FEM) field solver is much faster than the BEM based on their comparisons in a wave making problem. In this paper, we aim to find a highly efficient method to solve fully-nonlinear wave-body interaction problems based o
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Lee, Youngbum, Mingyi Tan, Pandeli Temarel, and Shihua Miao. "Coupling Between Flexible Ship and Liquid Sloshing Using Potential Flow Analysis." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20787.

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The significant increase in demand for Liquefied Natural Gas (LNG) and the economic aspects of its transportation resulted in increases in the number and size of LNG carriers. One of the design issues for LNG carriers is the sloshing phenomenon because containment systems widely used nowadays have no internal structures. Furthermore, because the weights of ship and cargo are comparable and ship operators want more flexible operations allowing partial fillings in tanks, the coupling effect between ship motions and sloshing requires further investigation, including the effect of ship distortion.
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Shun, Kang, Liu Fengjun, and Wang Zhongqi. "A Method for Calculating Axial Turbomachine End Wall Turbulent Boundary Layers." In ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1989. http://dx.doi.org/10.1115/89-gt-15.

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Based on two families of relative stream-surface theory, the differential and integral equations of the endwall boundary layer in the S2 stream surface (hub to tip stream surface) have been established in the orthogonal curvilinear coordinate system in the present paper. By directly associating the blade force defects with the warping of S2 stream surface near the endwall, we have proposed a new method for predicting the endwall boundary layer. This method can be used to conduct the interactions of the end wall boundary layer with the S2 stream surface potentisl flow, in order to get the itera
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Kerboua, Y., A. A. Lakis, M. Thomas, L. Marcouiller, and M. H. Toorani. "Critical Velocity of Potential Flow in Interaction With a System of Plates." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-76059.

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The elastic structures subjected to flowing flow can undergo the excessive vibrations and consequently a considerable change in their dynamic behavior, and they may lose their stability. A fluid-solid finite element model is developed to model a set of plates subjected to flowing fluid under various boundary conditions, fluid level, and fluid velocity that strongly influence the dynamic behavior of the plates. A hybrid method, which combines the finite element approach with the classical theory of plates, is used to derive the dynamic equations of the coupled fluid-structure system. The membra
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Miao, X., Q. Zhang, C. Atkin, and Z. Sun. "End-Wall Secondary Flow Control Using Engineered Residual Surface Structure." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-57347.

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Residual surface roughness is often introduced in the manufacture process with ball-end or fillet-end milling. Instead of paying extra cost to remove these small-scale residual surface structures, there is a potential usage of them as flow control device. This numerical study therefore explores the ability of engineered surface structure in controlling the endwall secondary flow in turbomachinery. The CFD method is validated against the existing experimental data obtained for a 90 degree turning duct flow with a single rib fence placed on the end-wall. The working principle of the engineered s
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Zhang, Zexuan, and Ting Wang. "Investigation of Combustion and Thermal-Flow Inside a Petroleum Coke Rotary Calcining Kiln With Potential Energy Saving Considerations." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64643.

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Calcined coke is a competitive material for making carbon anodes for smelting of alumina to aluminum. Calcining is an energy intensive industry and a significant amount of heat is exhausted in the calcining process. Efficiently managing this energy resource is tied to the profit margin and survivability of a calcining plant. To help improve the energy efficiency and reduce natural gas consumption of the calcining process, a 3-D computational model is developed to gain insight of the thermal-flow and combustion behavior in the calciner. Comprehensive models are employed to simulate the moving p
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Athanassoulis, G. A., and K. A. Belibassakis. "A Unified Coupled-Mode Approach to Nonlinear Waves in Finite Depth: Potential Flow." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57366.

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A non-linear coupled-mode system of horizontal equations is presented, as derived from Luke’s (1967) variational principle, which models the evolution of nonlinear water waves in intermediate depth over a general bottom topography. The vertical structure of the wave field is represented by means of a complete local-mode series expansion of the wave potential. This series contains the usual propagating and evanescent modes, plus two additional terms, the free-surface mode and the sloping-bottom mode, enabling to consistently treat the non-vertical end-conditions at the free-surface and the bott
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Lin, Zaibin, Ling Qian, Wei Bai, Zhihua Ma, Hao Chen, and Jian-Guo Zhou. "Development of 3-Dimensional Fully Nonlinear Potential Flow Planar Wave Tank in Framework of OpenFOAM." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96098.

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Abstract A 3-Dimensional numerical wave tank based on the fully nonlinear potential flow theory has been developed in OpenFOAM, where the Laplace equation of velocity potential is discretized by Finite Volume Method. The water surface is tracked by the semi-Eulerian-Lagrangian method, where water particles on the free surface are allowed to move vertically only. The incident wave is generated by specifying velocity profiles at inlet boundary with a ramp function at the beginning of simulation to prevent initial transient disturbance. Additionally, an artificial damping zone is located at the e
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Mei, Fanghua, B. Lu, W. J. Meng, and S. Guo. "Fluid Flow and Heat Transfer Characteristics of Ethylene Glycol and Water in Copper-Based Microchannel Devices." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88328.

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Metal-based microchannel heat exchangers (MHEs) offer potential solutions to applications demanding high heat flux removal, such as cooling of high-performance microelectronic and energy-efficient lighting modules. Efficient fabrication of metal-based MHEs and quantitative flow and heat transfer measurements on them are critical for establishing the economic and technical feasibility of such devices. Adopting metal-based MHEs in many applications demands quantification of flow and heat transfer performance with application-relevant coolants, e.g. ethylene glycol (EG)/water mixtures rather than
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Alhadidi, Ali H., Amin Bibo, and Mohammed F. Daqaq. "Flow Energy Harvesters With a Nonlinear Restoring Force." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7445.

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This ppppaper examines the performance of a galloping energy harvester possessing a nonlinear restoring force. To achieve this goal, a flow energy harvester consisting of a piezoelectric cantilever beam augmented with a square-sectioned bluff body at the free end is considered. Two magnets located near the tip of the bluff body are used to introduce the nonlinearity which strength and nature can be altered by changing the distance between the magnets. A lumped-parameter aero-electromechanical model adopting the quasi-steady assumption for aerodynamic loading is presented and utilized to numeri
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Reports on the topic "Potential flow. eng"

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Cooper, Christopher, Jacob McDonald, and Eric Starkey. Wadeable stream habitat monitoring at Congaree National Park: 2018 baseline report. National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2286621.

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The Southeast Coast Network (SECN) Wadeable Stream Habitat Monitoring Protocol collects data to give park resource managers insight into the status of and trends in stream and near-channel habitat conditions (McDonald et al. 2018a). Wadeable stream monitoring is currently implemented at the five SECN inland parks with wadeable streams. These parks include Horseshoe Bend National Military Park (HOBE), Kennesaw Mountain National Battlefield Park (KEMO), Ocmulgee Mounds National Historical Park (OCMU), Chattahoochee River National Recreation Area (CHAT), and Congaree National Park (CONG). Streams
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