Relevant bibliographies by topics / The separation thesis

Contents

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

Academic literature on the topic 'The separation thesis'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

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Journal articles on the topic "The separation thesis"

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Nomer, Nedim. "Fichte's Separation Thesis." Philosophical Forum 44, no. 3 (2013): 233–54. http://dx.doi.org/10.1111/phil.12012.

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Sandberg, Joakim. "Understanding the Separation Thesis." Business Ethics Quarterly 18, no. 2 (2008): 213–32. http://dx.doi.org/10.5840/beq200818216.

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Many writers in the field of business ethics seem to have accepted R. Edward Freeman’s argument to the effect that what he calls “the separation thesis,” or the idea that business and morality can be separated in certain ways, should be rejected. In this paper, I discuss how this argument should be understood more exactly, and what position “the separation thesis” refers to. I suggest that there are actually many interpretations (or versions) of the separation thesis going around, ranging from semantic, empirical and reformative to some which are straightforwardly normative. While it is generally agreed that the separation thesis should be rejected, then, there is not as much agreement on what this thesis actually says. I suggest that whether or not we should reject the separation thesis, however, ultimately must depend on how we understand it more exactly—on certain interpretations, the thesis comes out as more or less trivially false, but we should demand more evidence or argument to reject it on certain other interpretations. This result presents a challenge for all those writers who are committed to the rejection of the separation thesis.
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Wicks, Andrew C. "Overcoming the Separation Thesis." Business & Society 35, no. 1 (1996): 89–118. http://dx.doi.org/10.1177/000765039603500108.

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Abela, Andrew. "Adam Smith and the Separation Thesis." Business and Society Review 106, no. 3 (2001): 187–99. http://dx.doi.org/10.1111/0045-3609.00111.

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Carr, Adrian N. "The `Separation Thesis' of Self and Other." Theory & Psychology 13, no. 1 (2003): 117–38. http://dx.doi.org/10.1177/0959354303013001724.

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Stankovic, Dejan. "Law and morality in contemporary philosophy of law." Filozofija i drustvo, no. 19-20 (2002): 203–12. http://dx.doi.org/10.2298/fid0209203s.

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In this paper, author tries to analyze complex character of the relation between law and morality in contemporary law philosophy. There are three approaches to the issue of relation between law and morality: natural law theory (identity thesis), positivist (separation thesis) and Anglo-American analytical jurisprudence (polarity thesis). The identity thesis-law and morality are basically identical, although basic principles of morality are subordinated to the positive legal rules; the separation thesis-law and morality are quite different system of norms: positive legal rules are completely deprived of any moral content; Polarity thesis - law and morality are different systems of norms which complement to each other. The polarity thesis is exemplified in theories of Herbert Hart and Ronald Dworkin's. At the logical level, polarity thesis overcomes and specifically synthesizes abstract character and reductionism of identity and separation thesis. At the socio-historical level, the polarity thesis is result of historical development of legal and political institutions.
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Dienhart, John W. "The Separation Thesis: Perhaps Nine Lives are Enough." Business Ethics Quarterly 18, no. 4 (2008): 555–59. http://dx.doi.org/10.5840/beq200818439.

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Is business intimately related to ethics or can the two be separated? I argue that examining this question by focusing on how the two areas might be separated is logically flawed. Examining how business and ethics are connected, however, can bear fruit. This examination shows that business is a proper subset of ethics. Understanding this intimate connection has two practical benefits. It removes the seemingly incommensurable conflict between financial and ethical responsibilities of managers and it gives us new and positive insights into Milton Friedman’s view that the social responsibility of business is to increase its profits.
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Marmor, Andrei. "The Separation Thesis and the Limits of Interpretation." Canadian Journal of Law & Jurisprudence 12, no. 1 (1999): 135–50. http://dx.doi.org/10.1017/s0841820900002174.

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There are many versions of legal positivism; perhaps as many as there are legal positivists around. All the versions of legal positivism, however, subscribe to the so-called Separation Thesis. This thesis basically maintains that detenriining what the law is, does not necessarily, or conceptually, depend on moral or other evaluative considerations about what it ought to be in the relevant circumstances. Legal positivists differ, however, and quite substantially, over the appropriate interpretation of this thesis. The so-called ‘strong’, or ‘exclusive’ version of legal positivism maintains that moral considerations never determine the legal validity of norms. ‘Soft’ positivists, on the other hand, do maintain that there is a close relation between legal validity and morality, but they hold that this relation is, at best, a contingent matter; it does not derive from the nature of law or legal reasoning as such. Soft-positivists claim that moral considerations determine legal validity only in certain cases, namely, in those cases which follow from the rules of recognition that happen to prevail in a given legal system.
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Hartman, Edwin M. "Virtue, Profit, and the Separation Thesis: An Aristotelian View." Journal of Business Ethics 99, no. 1 (2011): 5–17. http://dx.doi.org/10.1007/s10551-011-0745-9.

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Sandberg, Joakim. "The Tide is Turning on the Separation Thesis?: A Response to Commentators." Business Ethics Quarterly 18, no. 4 (2008): 561–65. http://dx.doi.org/10.5840/beq200818440.

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In my article “Understanding the Separation Thesis” I noted that most scholars in the business ethics field seemed to have accepted R. Edward Freeman’s argument to the effect that what he calls “the separation thesis” should be rejected. I argue, however, that they seemed to understand this thesis (and its rejection) in quite different ways. This volume contains three responses to my article which, interestingly enough, can be taken to corroborate my original argument. I here make some brief comments on these responses.
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Dissertations / Theses on the topic "The separation thesis"

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Atkey, Robert. "Substructural simple type theories for separation and in-place update." Thesis, University of Edinburgh, 2006. http://hdl.handle.net/1842/892.

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This thesis studies two substructural simple type theories, extending the "separation" and "number-of-uses" readings of the basic substructural simply typed lambda-calculus with exchange. The first calculus, lambda_sep, extends the alpha lambda-calculus of O'Hearn and Pym by directly considering the representation of separation in a type system. We define type contexts with separation relations and introduce new type constructors of separated products and separated functions. We describe the basic metatheory of the calculus, including a sound and complete type-checking algorithm. We then give new categorical structure for interpreting the type judgements, and prove that it coherently, soundly and completely interprets the type theory. To show how the structure models separation we extend Day's construction of closed symmetric monoidal structure on functor categories to our categorical structure, and describe two instances dealing with the global and local separation. The second system, lambda_inplc, is a re-presentation of substructural calculus for in-place update with linear and non-linear values, based on Wadler's Linear typed system with non-linear types and Hofmann's LFPL. We identify some problems with the metatheory of the calculus, in particular the failure of the substitution rule to hold due to the call-by-value interpretation inherent in the type rules. To resolve this issue, we turn to categorical models of call-by-value computation, namely Moggi's Computational Monads and Power and Robinson's Freyd-Categories. We extend both of these to include additional information about the current state of the computation, defining Parameterised Freyd-categories and Parameterised Strong Monads. These definitions are equivalent in the closed case. We prove that by adding a commutativity condition they are a sound class of models for lambda_inplc. To obtain a complete class of models for lambda_inplc we refine the structure to better match the syntax. We also give a direct syntactic presentation of Parameterised Freyd-categories and prove that it is soundly and completely modelled by the syntax. We give a concrete model based on Day's construction, demonstrating how the categorical structure can be used to model call-by-value computation with in-place update and bounded heaps.
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Manduva, Prithvi. "Implementation of location identifier separation protocol (LISP) routing protocol in network simulator 2." Thesis, Wichita State University, 2014. http://hdl.handle.net/10057/10968.

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The Internet, which has had an impact on almost every facet of our lives. It has grown at a rapid pace and devices connecting to in direct proportion, in turn increasing the routing tables. The Location Identifier Separation Protocol (LISP) helps to reduce the burden in both enterprise routers and Internet routers without changing the hardware, which could cost more than implementing a new routing protocol. The LISP helps in reducing Border Gateway Protocol (BGP) routes as well as keeping devices connected to the Internet or network with less downtime. Implementation of the LISP in a simulator helps network engineers learn the upcoming protocol and design, and test the network.<br>Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Electrical Engineering and Computer Science
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Wegener, Jeffrey Lewis. "Experiments and modeling of shear-driven film separation." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Wegener_09007dcc80605416.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2009.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed March 18, 2009) Includes bibliographical references (p. 153-156).
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Fortin, Jennifer Kay. "Niche separation amongst sympatric ursids relative to salmon use." Online access for everyone, 2006. http://www.dissertations.wsu.edu/Thesis/Summer2006/j%5Ffortin%5F053106.pdf.

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Haupt, Petronella. "Effective solvent extraction of coal and subsequent separation processes." Diss., Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-08282007-113611.

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Thesis (M. Eng.)(Chemical Engineering)--University of Pretoria, 2006.<br>Accompanied by a CD-ROM containing Matlab programs. Includes bibliographical references. Available on the Internet via the World Wide Web.
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Radhakrishnan, Nitin. "Stressed-eye analysis and jitter separation for high-speed serial links." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Radhakrishnan_09007dcc80704638.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2009.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed November 17, 2009) Includes bibliographical references (p. 61-62).
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Friedrich, Mark Allan. "A separation criterion and non-intrusive thickness measurement technique for shear-driven films." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/mafxt5_09007dcc804f57cf.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2008.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 7, 2008) Includes bibliographical references.
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Stayton, Isaac Alexander. "Investigation of the interactions between selected nanoparticles and human lung carcinoma cells at the single cell and single particle level." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Stayton_09007dcc8065344d.pdf.

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Thesis (Ph. D.)--Missouri University of Science and Technology, 2009.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 29, 2009) Includes bibliographical references.
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Kruger, Theunis Johannes. "A generic framework for continuous energy management at cryogenic air separation plants." Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-05272005-165835/.

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Willems, Fabian. "GhostBuy: An All-Steps Anonymous Purchase Platform (ASAPP) Based on Separation of Data." Thesis, Université d'Ottawa / University of Ottawa, 2005. http://hdl.handle.net/10393/42161.

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In recent years – and especially since the beginning of the COVID-19 pandemic – online shopping has become a part of everyday life for many people. Yet, in contrast to buying at a traditional retail store, staying anonymous is at least difficult if not impossible when shopping online – in particular, when physical goods are to be delivered. From the customer perspective, reasons for seeking anonymity when shopping online can be manifold, for example some do not want anyone to know about their purchases, others do not want their data to be used by Big Data-enabled online retailers. From the point of view of online retailers, the prospect of anonymous online shopping should therefore not only be seen as a threat to their data-driven business models, but also as an opportunity to attract new customers. In this thesis we search and find support in the literature regarding the question whether there is indeed a demand for anonymous online shopping, and we discuss system architecture designs that were proposed by other authors for potentially realizing what we call All-Steps Anonymous Purchase Platforms (ASAPP). We propose a new architecture design that improves earlier work by realizing the concept of Separation of Data within a single platform: GhostBuy. We implement a working prototype of this platform that demonstrates not only the fundamental feasibility of the architecture but also that such a platform can be realized with a look-and-feel similar to that of common online shops. We also propose solutions for certain related aspects that are particularly important in the context of such a platform, as for example a guaranteed use of secure user passwords or application-level database encryption. We evaluate to what extent the proposed architecture and prototype preserve the customers’ anonymity/privacy, showing that the prototype provides it to the maximum possible extent that can be achieved based on the proposed architecture. We also show that the system provides 256-bit security against all but one considered cryptographic and mis-authentication attack vectors and discuss how this can also be achieved for the remaining attack vector. Closing our evaluation, we show how well the platform could presumably be deployed in the real world. Finally, limitations, possible improvements, and potential further future work are discussed and proposed.
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Books on the topic "The separation thesis"

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Dalton, Heather, ed. Keeping Family in an Age of Long Distance Trade, Imperial Expansion, and Exile, 1550-1850. Amsterdam University Press, 2020. http://dx.doi.org/10.5117/9789463722315.

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Keeping Family in an Age of Long Distance Trade, Imperial Expansion, and Exile, 1550--1850 brings together eleven original essays by an international group of scholars, each investigating how family, or the idea of family, was maintained or reinvented when husbands, wives, children, apprentices, servants or slaves separated, or faced separation, from their household. The result is a fresh and geographically wide-ranging discussion about the nature of family and its intersection with travel over three hundred years -- a period during which roles and relationships, within and between households, were increasingly affected by trade, settlement, and empire building. The imperial project may have influenced different regions in different ways at different times yet, as this collection reveals, families, especially those transcending national ties and traditional boundaries, were central to its progress. Together, these essays bring new understandings of the foundations of our interconnected world and of the people who contributed to it.
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Kauderer, Herb. Lines of separation: A thesis in English. 2000.

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Keem, Robert F. Separation of benzo[a]pyrene and its metabolites using packed column supercritical fluid chromatography: A thesis in chemistry. 1998.

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Rogers, Timothy McKenzie. Domain growth and dynamical scaling during the late stages of phase separation. 1989.

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Tomski, Ilia. A Study of Electron Charge Transfer Reactions for Atomic Isobar Separation in Mass Spectrometry. 2002.

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Samuels, David. Separation of Powers. Edited by Carles Boix and Susan C. Stokes. Oxford University Press, 2009. http://dx.doi.org/10.1093/oxfordhb/9780199566020.003.0029.

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This article tries to answer the question ‘what difference does the separation of powers make?’. It begins by defining the differences between democratic regimes, and moves on to study four key questions about the extent to which the separation of powers ‘matters’. The discussion concentrates on these questions because they address the central theoretical and empirical concerns of comparativists, which are the ‘big issues’ in the study of politics.
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Elder, Kenneth Ross. Early time dynamics in phase separating systems with a conserved order parameter. 1989.

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Lopes, Dominic McIver. Six Degrees of Separation. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198827214.003.0005.

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The main argument for the network theory of aesthetic value is that it better explains six facts about aesthetic activity than does its rival, aesthetic hedonism. The chapter indicates why aesthetic hedonism does not predict how aesthetic experts disperse into almost all demographic niches, how they jointly inhabit the whole aesthetic universe, how they specialize by aesthetic domain, how they specialize by type of activity, how they specialize by activity and domain interact, or how their expertise comes to be relatively stable. In addition, the account of the normativity of aesthetic reasons has some revealing flaws. The account has trouble with the plasticity of pleasure, the bounded rationality of aesthetic agents, the importance of aesthetic personality, and the possibility of the alienation of aesthetic reasons from desires.
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Kyritsis, Dimitrios. Dynamic Separation of Powers. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199672257.003.0009.

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This book argues that constitutional review is an aspect of the separation of powers. In determining its scope, though, we do not only look to history. We look ahead as well, to the challenges our political order faces now and in the future. These challenges sometimes expose the deficiencies in the extant separation of powers and the need to update it so that it can sustain its legitimacy. Updating the constitution is a matter of a higher-order separation of powers and thus also governed by political morality. Political morality assigns constitutional authorship more liberally than we tend to think. Sometimes, it assigns constitutional authorship to actors and procedures beyond those specified in the amendment provisions of the original constitution, including courts themselves.
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Rivers, Larry Eugene. In Search of Kinfolk and Loved Ones. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252036910.003.0008.

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This chapter analyzes one of slavery′s most unfortunate aspects, the separation of family and kinfolk. In their dream to regain what they had lost in the Upper South, elite planter families and less well-to-do farmers sought honor, independence, and wealth by forcibly uprooting their bondservants and moving them to the Lower South, where cheap, fertile land could be found in which to grow cotton and other cash crops. By separating family members and destroying the slave family in order to realize their own dreams and hopes, however, Florida slaveholders set the stage for bondservant flight aimed at reunion with kinfolk and loved ones. It is worth noting that relocation involving separation of loved ones and kinfolk did not touch enslaved Floridians only at the outset of the territorial era in 1821 and the years immediately following.
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Book chapters on the topic "The separation thesis"

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Pagel, Jens, and Florian Zuleger. "Strong-Separation Logic." In Programming Languages and Systems. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72019-3_24.

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AbstractMost automated verifiers for separation logic are based on the symbolic-heap fragment, which disallows both the magic-wand operator and the application of classical Boolean operators to spatial formulas. This is not surprising, as support for the magic wand quickly leads to undecidability, especially when combined with inductive predicates for reasoning about data structures. To circumvent these undecidability results, we propose assigning a more restrictive semantics to the separating conjunction. We argue that the resulting logic, strong-separation logic, can be used for symbolic execution and abductive reasoning just like “standard” separation logic, while remaining decidable even in the presence of both the magic wand and the list-segment predicate—a combination of features that leads to undecidability for the standard semantics.
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Hasegawa, George. "Application of Hierarchically Porous Titania Monoliths to Chromatographic Separation Media." In Springer Theses. Springer Japan, 2012. http://dx.doi.org/10.1007/978-4-431-54198-1_9.

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Tan, Shu Fen. "Self-Assembly of Silver Nanoparticles with Sub-nanometer Separations." In Springer Theses. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8803-2_3.

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Wei, Huibin. "Microfluidic Device with Integrated Porous Membrane for Cell Sorting and Separation." In Springer Theses. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-32359-1_4.

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Li, Xiao. "Synthesis, Separation, Transfer, and Structural Characterization of Graphene-Based Woven Fabric." In Springer Theses. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-47203-3_2.

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Nicolson, Paula. "Attachment, separation and loss: themes in HGD." In A Critical Approach to Human Growth and Development. Macmillan Education UK, 2014. http://dx.doi.org/10.1007/978-1-137-01548-8_6.

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Li, Guoqiang. "Micropore-Arrayed Ultrathin Aluminum Foil for Oil/Water Separation and Particle Filtration." In Springer Theses. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0359-3_8.

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Nustad, K., S. Funderud, T. Ellingsen, A. Berge, and J. Ugelstad. "Immunomagnetic Cell Separation." In Scientific Methods for the Study of Polymer Colloids and Their Applications. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-1950-1_25.

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Wang, Fangjun. "Online Sample Injection and Multidimensional Chromatography Separation by Using Strong-Cation Exchange Monolithic Column." In Springer Theses. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-42008-5_2.

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Zhuang, Tao-Tao. "Integration of Sulfides Enables Enhanced Full-Spectrum Solar Energy Absorption and Efficient Charge Separation." In Springer Theses. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0188-9_5.

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Conference papers on the topic "The separation thesis"

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Han, Chungmin, and Jaesung Park. "Size Based Particle Separation Method by Zero Diffusivity." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53393.

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Separation is one of the most basic and frequently using techniques for biological research. Researchers have been using gel-electrophoresis for DNA separation and also using various chromatography techniques for protein and bio-molecule separations. Recently, as micro and nano fabrication techniques have developed, interest in miniaturized micro scale biology research tools has also increased. According to this trend, micro scale devices for separating various sized of particles such as cells, organelles, proteins, lipids and vesicles play an important role in a total system. Therefore, separation devices based on various methods are suggested. Widely used separation methods for micro devices are electro-kinetics with special channel geometries and laminar flow control. In electro-kinetic methods, micro channel electrophoresis and DEP (dielectrophoresis) are commonly used.[1] These separation methods, however, can only be used in very narrow range because their working conditions, high voltage and charge dependence, are not compatible with many biomaterials.
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Hersberger, Carsten, Elias Waldvogel, Joshua Bopp, and Beat Ribi. "Design of an Innovative Moisture Separator Technology for Use in Nuclear Power Plants: Experimental Validation — Part 2." In 2020 International Conference on Nuclear Engineering collocated with the ASME 2020 Power Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/icone2020-16550.

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Abstract The Moisture Separator Reheater (MSR) is a key component of Nuclear Power Plants (NPP), both in terms of performance and prevention of erosion/corrosion. Wet steam is usually dried in a MSR by inertial separation of the liquid water using separator elements. Depending on the design of the MSR, the technology of the separator elements contributes significantly to its size and performance. An innovative concept of separator panels was conceived by means of aerodynamic principles as outlined in part 1 of this paper [1]. Computational Fluid Dynamics (CFD) has been used to understand the working principles of various moisture separating devices. The investigated separator panels are designed to capture the water droplets in a region of flow separation (invisible pockets) within the separator channels. To characterize the separation performance of these separator panels, a test rig has been developed and built at the University of Applied Sciences Northwestern Switzerland (FHNW). This test rig was then operated at typical MSR operating conditions. To meet the required moisture content and flow conditions, preheated water was injected into the saturated steam flow. In order to measure the residual moisture content after the separation the throttling calorimeter methodology has been adopted. The newly designed panels have shown very good separation performance. According to the measurements carried out, a residual moisture content of less than 0.1 % can be guaranteed. The innovative technology, which clearly differentiates the OEM, for who this research was carried out, from its competitors, will allow considerable size and cost reduction as well as opportunities to retrofit existing MSRs.
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Zhao, Lixin, Zhengrong Hua, Yue Wang, Yanqing Hu, and Zhanzhao Ma. "Centrifugal Separators Used for Oilfield Multi-Phase Separation." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57965.

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The development of centrifugal separators used for oilfield multi-phase separation is introduced. The structural types and functional principles of the separators, which include static, adjustable, rotary and dynamic hydrocyclones, spiral separator, gas-liquid cylindrical cyclone, and spiral tube separator, etc., are described. The main characteristics, advantages, disadvantages, separating effect of the separators are analyzed respectively. The application condition of each type is introduced as well. The research state-of-the-art of the separators and some of their applications are also described. The right way for selecting an efficient separator is based on the actual operating condition in order to obtain satisfactory treating result. This paper would be beneficial for the selection, design, and application of different separators in oilfields, especially for offshore applications.
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Snyder, Philip H., Dominic Barone, and Eric Loth. "Unsteady Flow Dynamics Within an Inertial Particle Separator." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43783.

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Inertial Particle Separators are utilized in the inlet of a gas turbine engine to remove a significant fraction of the damaging sand and dust particulate ingested by the engine. In gas turbine propulsion applications these devices have pressure loss, space claim, and maintainability characteristics that are more favorable than other types of particle separating devices. Maximizing the particle separation efficient of such devices is the subject of continuing importance. A more complete understanding of the underlying fluid and particulate flow mechanisms present has been undertaken. This study focuses on the how particulate is affected by the unsteady flow dynamics within the inertial particle separator (IPS). The work utilized a particle separator test rig with flow path scale and airflow velocities relevant to that used in current production designs. The techniques of surface flow visualization, net separation efficiency measurement, specific geometry changes, traditional Particle Image Velocimetry (PIV), Multi-Phase PIV (MP-PIV), and high speed video were each applied to examine the fundamental flow physics of the fluid flow field and the particle motion created by the IPS geometries.
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Dawkins, Ivo, James Taylor, Xavier Ottavy, and Rob Miller. "The Unsteady Topology of Corner Separations." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-58730.

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Abstract As a compressor is throttled three-dimensional separations develop in the corners between the blades and annulus endwall. Surprisingly, little is understood about the unsteady topology of these separations. One of the problems with studying corner separations is that it is often difficult to understand whether a particular flow structure in the separation is inherent to the separation itself, or due to the response of the separation to changes in the inlet flow. In this paper a novel experimental approach is taken with the aim of isolating the corner separation from external influences. A cascade is designed with the specific aim of precisely controlling the inlet flow. Contrary to previous work, it is shown that the key saddle and focus pair, which describes the time-mean topology of the corner separation on the endwall, moves smoothly and continuously as the incidence of the flow is raised. This behavior is shown to be the result of the time-resolved topology of the flow field, which comprises numerous saddle and focus pairs which are produced stochastically in regions of high shear strain rate. Most importantly, the separation is shown to exhibit an extremely low frequency behavior, changing in topology over timescales which are approximately 80 times the convection time through the blade passage. The behavior is shown to be intrinsic to the separation and causes the separation, for periods, to completely disappear from the endwall. This underlying unsteady structure of the separation is shown to have implications for the ability of RANS-based design codes to be able to accurately predict corner separations.
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Zhao, Lixin, Baojun Zhu, and Yong Zhang. "Flow Field Characteristic Analysis and Structural Optimization of a Centrifugal Gas-Liquid Separator." In ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2007. http://dx.doi.org/10.1115/omae2007-29012.

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Based on computational fluid dynamic (CFD) method, the simulation of a normal vertical-vessel type centrifugal gas-liquid separator was carried out, by using Gambit and FLUENT soft packs. It is found that the axial symmetry of the flow field is bad, the gas-content near underflow outlet is higher, which indicates the separating effect of the separator is not satisfied. Through structural optimization, including changing the underflow outlet from side to bottom, designing double inlets, reducing the vessel diameter, extending the overflow tube to the bottom of inlet tube, changing the bottom part of the separator from cylindrical to conical structure, etc., so as to improve the axial symmetry of the separator flow field, including gas phase distribution, then to enhance its separation effect. CFD analysis result of velocity distribution is in accordance with Laser Doppler Anemometer (LDA) result qualitatively. All of these will provide some reference on structural optimization. It is concluded that CFD aided optimization design is very helpful for fluid machinery design, which can guide experimental work and decrease the experimental time and cost to a great extent.
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Zhao, Fulong, Chenru Zhao, Hanliang Bo, and Ying Liu. "Influence of Working Pressure and Pressure Difference on Static Droplet Evaporation Characteristics." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66039.

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The function of steam separator is to remove the small droplets carried by the vapor stream and to provide qualified saturated vapor for the steam turbine in the nuclear power station. The separating characteristics of the steam-water separation plant are of vital importance to the safe operation, economy as well as reliability of the power station. In order to satisfy the requirement of power increase of large nuclear power station as well as space compaction of the vessel power plant, the steam vapor quality must be improved, which requires that the steam-water separator has better separating function to make sure that it can provide the qualified steam on the condition of higher steam pressure, power load as well as circulating ratio. There are many complex phenomena when the droplet moves in the steam-water separating plant, including the droplet emergence, the droplet moving with steam vapor, the collision between droplets and with solid wall, evaporation. It is a good way to study the steam-water separating characteristics for the microcosmic behavior of the droplet. Thus, in order to know the droplet evaporation characteristics in the steam-water separator, the static droplets phase transformation model under the pressure variation condition is built according to the physical phenomenon description and mechanism comprehension when the droplet moves with the steam vapor in the steam-water separation plants. This model is solved by the typical four steps Runge-Kutta method and validated by comparing with the experimental results. Then, the influence of working pressure as well as pressure difference between the droplet surface and the environment on the static droplet evaporation characteristics is conducted. The simulation results show that the working pressure and pressure difference have great impact on the static droplet evaporation characteristics. With the increase of the working pressure, the droplet evaporation rate becomes slower, that is because the physical property parameters of the water vapor and water become closer to each other and the self-diffusion coefficient of the water vapor as well as the evaporation condensation coefficient become smaller, which results in the droplet evaporation rate becomes slower. When the pressure difference between the droplet surface and the environment rises, the droplet evaporates faster, that is because the vapor velocity around the droplet becomes larger and the droplet evaporates faster. These results of the simulation can lay the foundation for subsequent study of the droplet evaporation characteristics when the droplet moving in the separating plants and for the droplet fast evaporation characteristics when the environment pressure changes fast.
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Gbadebo, Semiu A., Nicholas A. Cumpsty, and Tom P. Hynes. "Three-Dimensional Separations in Axial Compressors." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53617.

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Flow separations in the corner regions of blade passages are common. The separations are three dimensional and have quite different properties from the two-dimensional separations that are considered in elementary courses of fluid mechanics. In particular the consequences for the flow may be less severe than the two-dimensional separation. This paper describes the nature of three-dimensional separation and addresses the way in which topological rules, based on a linear treatment of the Navier-Stokes equations, can predict properties of the limiting streamlines, including the singularities which form. The paper shows measurements of the flow field in a linear cascade of compressor blades and compares these with the results of 3D CFD. For corners without tip clearance, the presence of three-dimensional separation appears to be universal and the challenge for the designer is to limit the loss and blockage produced. The CFD appears capable of predicting this.
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Jimenez, Edgardo, Lin Hua, Michelle Monear, and Kevin Nilson. "Root Cause of Undesired Hose Separations and a Solution." In ASME 2009 Rail Transportation Division Fall Technical Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/rtdf2009-18024.

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Hose separations remain a significant problem for the class 1 railroads. They average about six thousand undesired hose separations a year. There are a lot of facts that the railroads are aware of, but lack good explanations. Why do more separations happen in the winter than in the summer? Why are old end hoses more prone to separation? Why does replacing the gaskets more frequently lead to a lower separation rate? Substantial research has been done to figure out the root cause of the undesired separation problem and to answer the above questions. The data analyzed from the class 1’s has shown that the trolley arrangement accounts for 52% of the undesired separations. The force to move the end hose in a cushioned car trolley arrangement is sometimes greater than the force required to pull apart the gladhands. It is probable that misalignment of the gladhands, coupled with an end of car (EOC) cushioning arrangement that hinders smooth movement of the end hose, will lead to an undesired hose separation. Research points to the fact that if there is a way that the force required to pull apart the end hose connections is kept greater than the force required to move the shackle on a trolley, then this will lower the frequency of undesired hose separations. By changing various characteristics of the gladhand gasket, it can be ensured that the pull-apart force is always around the 600lb range. These changes have been incorporated into the design of a double wide lip gasket and are currently in field testing. By reducing the occurrence of undesired emergency (UDEs) separations, the amount of time a train is stopped can be greatly reduced.
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Jang, Seongil, Joon Ahn, and Si Hyung Lim. "Performance of Oil Separator According to the Depth of the Outlet Tube." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-03408.

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Recent years have witnessed a growing concern over saving energy because of global warming issues and energy price hikes caused by increased oil prices. The need to improve energy efficiency to reduce energy consumption has been raised. Refrigeration systems are also expected to have their energy efficiency improved. A refrigeration system’s the compressor uses lubricating oil. Lubricating oil, along with refrigerant, circulates in a refrigeration system. During this process, the pressure drop increases, and the heat transfer coefficient decreases. Moreover, insufficient lubricant may incur a decrease in performance and damage to a compressor. Therefore, an oil separator is used to separate the lubricant and return it to the compressor. Since an oil separator causes an additional pressure drop, energy consumption should be decreased by increasing the oil separator’s separation efficiency and decreasing the pressure drop. The recent increase in development of large-scale buildings such as skyscrapers and large supermarkets has also increased the demand for large refrigeration machines. At the same time, refrigeration piping is becoming longer, and refrigerant must circulate up to the highest points. A high-pressure head and long piping configuration inevitably increase the quantity of lubricant left on the pipe wall, which in turn increases the loss of lubricants. The increased length and fall height for lubricants to circulate with refrigerant increase the related energy loss. In order to use a compressor in a high-head long-piping refrigeration system, the separation efficiency of the oil separator must be improved. Doing so will also reduce energy losses. Even with an improved separation efficiency, however, an increased pressure drop means additional energy losses. Thus, an oil separator with high separation efficiency and low pressure drop should be designed. So using the Numerical analysis, designed a new oil separator. A series of numerical simulation has been carried out to study peformance of a cyclone type oil separator, which is designed for the compressor of a refrigeration system. Working fluid is R22, which is a typical refrigerant, and mineral oil droplet is supplied. Depending on the outlet tube length, separation efficiency varies from 98.74 to 99.25%. Considering both of the separation efficiency, outlet tube length of the separator has been designed as 158 mm and oil separator length is 310mm.
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Reports on the topic "The separation thesis"

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Chandra, Shailesh, Mehran Rahmani, Timothy Thai, Vivek Mishra, and Jacqueline Camacho. Evaluating Financing Mechanisms and Economic Benefits to Fund Grade Separation Projects. Mineta Transportation Institute, 2021. http://dx.doi.org/10.31979/mti.2020.1926.

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Investment in transportation infrastructure projects generates benefits, both direct and indirect. While emissions reductions, crash reductions, and travel time savings are prominent direct benefits, there are indirect benefits in the form of real estate enhancements that could pay off debt or loan incurred in the improvement of the infrastructure itself. Studies have shown that improvements associated with rail transportation (such as station upgrades) trigger an increase in the surrounding real estate values, increasing both the opportunity for monetary gains and, ultimately, property tax collections. There is plenty of available guidance that provides blueprints for benefits calculations for operational improvements in rail transportation. However, resources are quite limited in the analysis of benefits that accrue from the separation of railroad at-grade crossings. Understanding the impact of separation in a neighborhood with high employment or population could generate revenues through increased tax collections. In California, the research need is further amplified by a lack of guidance from the California Public Utilities Commission (CPUC) on at-grade crossing for separation based on revenue generated. There is a critical need to understand whether grade separation projects could impact neighboring real estate values that could potentially be used to fund such separations. With COVID-19, as current infrastructure spending in California is experiencing a reboot, an approach more oriented to benefits and costs for railroad at-grade separation should be explored. Thus, this research uses a robust benefits-to-cost analysis (BCA) to probe the economic impacts of railroad at-grade separation projects. The investigation is carried out across twelve railroad-highway at-grade crossings in California. These crossings are located at Francisquito Ave., Willowbrook/Rosa Parks Station, Sassafras St., Palm St., Civic Center Dr., L St., Spring St. (North), J St., E St., H St., Parkmoor West, and Nursery Ave. The authors found that a majority of the selected at-grade crossings analyzed accrue high benefits-to-cost (BC) ratios from travel time savings, safety improvements, emissions reductions, and potential revenue generated if property taxes are collected and used to fund such separation projects. The analysis shows that with the estimated BC ratios, the railroad crossing at Nursery Ave. in Fremont, Palm St. in San Diego, and H St. in Chula Vista could be ideal candidates for separation. The methodology presented in this research could serve as a handy reference for decision-makers selecting one or more at-grade crossings for the separation considering economic outputs and costs.
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Carlsson, Mikael, Julián Messina, and Oskar Nordström Skans. Firm-Level Shocks and Labor Flows. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003002.

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This paper analyzes how labor ows respond to permanent idiosyncratic shifts in rm-level production functions and demand curves using very detailed Swedish micro data. Shocks to rms physical productivity have only modest eects on rm-level employment decisions. In contrast, the paper documents rapid and substantial employment adjustments through hires and separations in response to rm-level demand shocks. The choice of adjustment margin depends on the sign of the shock: rms adjust through increased hires if these shocks are positive and through increased separations if the shocks are negative.
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Carlsson, Mikael, Julián Messina, and Oskar Nordström Skans. Firm-Level Shocks and Labor Flows. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003002.

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This paper analyzes how labor ows respond to permanent idiosyncratic shifts in rm-level production functions and demand curves using very detailed Swedish micro data. Shocks to rms physical productivity have only modest eects on rm-level employment decisions. In contrast, the paper documents rapid and substantial employment adjustments through hires and separations in response to rm-level demand shocks. The choice of adjustment margin depends on the sign of the shock: rms adjust through increased hires if these shocks are positive and through increased separations if the shocks are negative.
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Tyburczy, James A. :. Chorover, John, and Peggy O'Day. Caustic Waste-Soil Weathering Reactions and Their Impacts on Trace Contaminant Migration & Separation - Final Report. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/862192.

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Kootstra, A. M. J., and S. Huurman. Protein extraction from spinach juice using vacuum explosion and their separation by active carbon, heat, and CaCl2. ACRRES, Wageningen University & Research, 2016. http://dx.doi.org/10.18174/440331.

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Crouch, Rebecca, Jared Smith, Bobbi Stromer, et al. Preparative, extraction, and analytical methods for simultaneous determination of legacy and insensitive munition (IM) constituents in aqueous, soil or sediment, and tissue matrices. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41480.

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No standard method exists for determining levels of insensitive munition (IM) compounds in environmental matrices. This project resulted in new methods of extraction, analytical separation and quantitation of 17 legacy and 7 IM compounds, daughter products of IM, and other munition compounds absent from USEPA Method 8330B. Extraction methods were developed for aqueous (direct-injection and solid-phase extraction [SPE]), soil, sediment, and tissue samples using laboratory-spiked samples. Aqueous methods were tested on 5 water sources, with 23 of 24 compounds recovered within DoD QSM Ver5.2 limits. New solvent extraction (SE) methods enabled recovery of all 24 compounds from 6 soils within QSM limits, and a majority of the 24 compounds were recovered at acceptable levels from 4 tissues types. A modified chromatographic treatment method removed analytical interferences from tissue extracts. Two orthogonal high-performance liquid chromatography-ultraviolet (HPLC-UV) separation methods, along with an HPLC–mass spectrometric (HPLC-MS) method, were developed. Implementing these new methods should reduce labor and supply costs by approximately 50%, requiring a single extraction and sample preparation, and 2 analyses rather than 4. These new methods will support environmental monitoring of IM and facilitate execution of risk-related studies to determine long-term effects of IM compounds.
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Willis, Craig. Why Scottish and Welsh Speakers Will Miss European Structural Funds. European Centre for Minority Issues, 2021. http://dx.doi.org/10.53779/jkwo3330.

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In this blog piece Craig Willis investigates the contribution of European Structural and Investment Funds projects in the period between 2007-2013 and 2014-2020, in order to ascertain direct and indirect links to the four Celtic languages, following the separation of cultural funds from the ESIF into Creative Europe and Erasmus Plus from 2007. He shows that, given that the speakers of such languages often reside in economically peripheral areas (at least in higher percentage terms), their livelihoods and everyday culture in the traditional speaking areas (even for non-speakers) are affected by availability of structural funds.
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Qamhia, Issam, and Erol Tutumluer. Evaluation of Geosynthetics Use in Pavement Foundation Layers and Their Effects on Design Methods. Illinois Center for Transportation, 2021. http://dx.doi.org/10.36501/0197-9191/21-025.

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This report presents findings of a research effort aimed at reviewing and updating existing Illinois Department of Transportation (IDOT) specifications and manuals regarding the use of geosynthetic materials in pavements. The project consisted of three tasks: evaluate current IDOT practice related to the use of geosynthetics; review research and state of the practice on geosynthetics applications, available products, design methods, and specifications; and propose recommendations for geosynthetic solutions in pavements to modernize IDOT’s practices and manuals. The review of IDOT specifications revealed that geotextiles are the most used geosynthetic product in Illinois, followed by geogrids. Several of IDOT’s manuals have comprehensive guidelines to properly design and construct pavements with geosynthetics, but several knowledge gaps and potential areas for modernization and adoption of new specifications still exist. Based on the review of the available design methods and the most relevant geosynthetic properties and characterization methods linked to field performance, several updates to IDOT’s practice were proposed. Areas of improvement are listed as follows. First, establish proper mechanisms for using geogrids, geocells, and geotextiles in subgrade restraint and base stabilization applications. This includes using shear wave transducers, i.e., bender elements, to quantify local stiffness enhancements and adopting the Giroud and Han design method for subgrade restraint applications. Second, update IDOT’s Subgrade Stability Manual to include property requirements for geogrids, geotextiles, and geocells suitable for subgrade restraint applications. Third, establish proper standards on stabilization, separation, and pumping resistance for geotextiles by incorporating recent research findings on geotextile clogging and permeability criteria. Fourth, promote the use of modern geosynthetic products, such as geotextiles with enhanced lateral drainage, and fifth, elaborate on proper methods for construction/quality control measures for pavements with geosynthetics.
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Gharibyan, N. New Routes for the Production of Fission Products and Their Separation from the Source Material for the Development of Realistic Nuclear Forensic Debris. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1240989.

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de Caritat, Patrice, Brent McInnes, and Stephen Rowins. Towards a heavy mineral map of the Australian continent: a feasibility study. Geoscience Australia, 2020. http://dx.doi.org/10.11636/record.2020.031.

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Heavy minerals (HMs) are minerals with a specific gravity greater than 2.9 g/cm3. They are commonly highly resistant to physical and chemical weathering, and therefore persist in sediments as lasting indicators of the (former) presence of the rocks they formed in. The presence/absence of certain HMs, their associations with other HMs, their concentration levels, and the geochemical patterns they form in maps or 3D models can be indicative of geological processes that contributed to their formation. Furthermore trace element and isotopic analyses of HMs have been used to vector to mineralisation or constrain timing of geological processes. The positive role of HMs in mineral exploration is well established in other countries, but comparatively little understood in Australia. Here we present the results of a pilot project that was designed to establish, test and assess a workflow to produce a HM map (or atlas of maps) and dataset for Australia. This would represent a critical step in the ability to detect anomalous HM patterns as it would establish the background HM characteristics (i.e., unrelated to mineralisation). Further the extremely rich dataset produced would be a valuable input into any future machine learning/big data-based prospectivity analysis. The pilot project consisted in selecting ten sites from the National Geochemical Survey of Australia (NGSA) and separating and analysing the HM contents from the 75-430 µm grain-size fraction of the top (0-10 cm depth) sediment samples. A workflow was established and tested based on the density separation of the HM-rich phase by combining a shake table and the use of dense liquids. The automated mineralogy quantification was performed on a TESCAN® Integrated Mineral Analyser (TIMA) that identified and mapped thousands of grains in a matter of minutes for each sample. The results indicated that: (1) the NGSA samples are appropriate for HM analysis; (2) over 40 HMs were effectively identified and quantified using TIMA automated quantitative mineralogy; (3) the resultant HMs’ mineralogy is consistent with the samples’ bulk geochemistry and regional geological setting; and (4) the HM makeup of the NGSA samples varied across the country, as shown by the mineral mounts and preliminary maps. Based on these observations, HM mapping of the continent using NGSA samples will likely result in coherent and interpretable geological patterns relating to bedrock lithology, metamorphic grade, degree of alteration and mineralisation. It could assist in geological investigations especially where outcrop is minimal, challenging to correctly attribute due to extensive weathering, or simply difficult to access. It is believed that a continental-scale HM atlas for Australia could assist in derisking mineral exploration and lead to investment, e.g., via tenement uptake, exploration, discovery and ultimately exploitation. As some HMs are hosts for technology critical elements such as rare earth elements, their systematic and internally consistent quantification and mapping could lead to resource discovery essential for a more sustainable, lower-carbon economy.
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