Academic literature on the topic 'Tight designs'

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Journal articles on the topic "Tight designs"

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Nebe, G., and B. Venkov. "On tight spherical designs." St. Petersburg Mathematical Journal 24, no. 3 (2013): 485–91. http://dx.doi.org/10.1090/s1061-0022-2013-01249-0.

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Bannai, Eiichi, and Etsuko Bannai. "Tight Gaussian 4-Designs." Journal of Algebraic Combinatorics 22, no. 1 (2005): 39–63. http://dx.doi.org/10.1007/s10801-005-2505-3.

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Lyubich, Yu I. "On tight projective designs." Designs, Codes and Cryptography 51, no. 1 (2008): 21–31. http://dx.doi.org/10.1007/s10623-008-9240-4.

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Adamczak, Izabela, Donald L. Kreher, and Rolf S. Rees. "Tight incomplete block designs." Discrete Mathematics 284, no. 1-3 (2004): 11–20. http://dx.doi.org/10.1016/j.disc.2003.11.020.

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BANNAI, Eiichi, and Etsuko BANNAI. "On Euclidean tight 4-designs." Journal of the Mathematical Society of Japan 58, no. 3 (2006): 775–804. http://dx.doi.org/10.2969/jmsj/1156342038.

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Bannai, E., and S. G. Hoggar. "Tight t-Designs and Squarefree Integers." European Journal of Combinatorics 10, no. 2 (1989): 113–35. http://dx.doi.org/10.1016/s0195-6698(89)80040-x.

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Dukes, Peter, and Jesse Short-Gershman. "Nonexistence results for tight block designs." Journal of Algebraic Combinatorics 38, no. 1 (2012): 103–19. http://dx.doi.org/10.1007/s10801-012-0395-8.

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Xiang, Ziqing. "Nonexistence of nontrivial tight 8-designs." Journal of Algebraic Combinatorics 47, no. 2 (2017): 301–18. http://dx.doi.org/10.1007/s10801-017-0776-0.

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Hirao, Masatake, Masanori Sawa, and Yuanyuan Zhou. "Some remarks on Euclidean tight designs." Journal of Combinatorial Theory, Series A 118, no. 2 (2011): 634–40. http://dx.doi.org/10.1016/j.jcta.2010.03.012.

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Bannai, Eiichi, Etsuko Bannai, and Yan Zhu. "A Survey on Tight Euclidean t-Designs and Tight Relative t-Designs in Certain Association Schemes." Труды математического института им. Стеклова 288, no. 01 (2015): 209–23. http://dx.doi.org/10.1134/s0371968515010148.

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Dissertations / Theses on the topic "Tight designs"

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Zhao, Xingang Ph D. Massachusetts Institute of Technology. "Critical power characteristics of axially heterogeneous tight bundle designs." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103648.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 133-136).<br>Accurate prediction of the dryout critical power in fuel rod bundles is challenging and has important implications for the economy and safety of Boiling Water Reactors (BWRs). This is especially true for the tight bundle desig
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Gamachchige, Nirosh Tharaka Sandakelum Gangoda. "Double-Change Covering Designs with Block Size k = 4." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/dissertations/1423.

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A double-change covering design (dccd) is an ordered set of blocks with block size k is an ordered collection of b blocks, B = {B1,B2, · · · ,Bb}, each an unordered subset of k distinct elements from [v] = {1, 2, · · · , v}, which obey: (1) each block differs from the previous block by two elements, and, (2) every unordered pair of [v] appears in at least one block. The object is to minimize b for a fixed v and k. Tight designs are those in which each pair is covered exactly once. We present constructions of tight dccd’s for arbitrary v when k = 2 and minimal constructions for v <= 20 when k =
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Wu, Xiaobin. "Efficient, tight bounding volumes for subdivision surfaces." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011460.

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Swarna, Ravindra Babu Surveying &amp Spatial Information Systems Faculty of Engineering UNSW. "Ultra-tight integration of GPS/Pseudolites/INS: system design and performance analysis." Awarded by:University of New South Wales, 2006. http://handle.unsw.edu.au/1959.4/40075.

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The complementary advantages of GPS and INS have been the principle driving factor to integrate these two navigation systems as an integrated GPS/INS system in various architectural forms to provide robust positioning. Although the loosely coupled and tightly coupled GPS/INS systems have been in existence for over a decade or two and performed reasonably well, nevertheless, the tracking performance was still a concern in non-benign environments such as dynamic scenarios, indoor environments, urban areas, under foliages etc., where the GPS tracking loops lose lock due to the signals being weak
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Winter, Joerg. "Nanofiltration and tight ultrafiltration membranes for drinking water treatment – system design and operation." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62873.

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Nanofiltration (NF) and tight Ultrafiltration (UF) membranes represent a technology that is well suited for high quality drinking water production from source waters with high concentrations of natural organic matter (NOM) or other contaminants. However, the application of these membranes is limited, mainly because of the challenges related to fouling, concentration polarization (CP), system complexity and cost. The aim of the present study was to address these issues and to enable a more widespread application of this technology. Opportunities for simplifying NF and tight UF systems by, f
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Lebouachera, Seif El Islam. "Optimisation d'une formulation EOR chimique pour des réservoirs pétroliers conventionnels et Tight." Electronic Thesis or Diss., Pau, 2020. http://www.theses.fr/2020PAUU3016.

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Une des méthodes de récupération assistée du pétrole les plus utilisées est l'injection de polymères (polymer flooding). L’objectif principal des travaux est d’étudier de nouvelles formulations aqueuses basées sur des mélanges polymère/microparticules afin d’améliorer les comportements rhéologiques classiques de polymère décris dans la littérature en vue d’une application à la récupération assistée du pétrole (EOR) par la méthode chimique, dans des conditions de salinité et de température simulés à un réservoir pétrolier Algérien (6 g/L NaCl et 20-80 °C). L’ensemble des travaux basé sur de l’o
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Khan, Sajjad. "Tight smoothing of the squared distance functions and applications to computer-aided design and differential equations." Thesis, Swansea University, 2014. https://cronfa.swan.ac.uk/Record/cronfa42265.

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We study the quadratic lower compensated convex transform C[l lambda]dist2(x, K) of the squared distance function to a nonempty, non-convex closed set K &sub; R[n]. These transforms, introduced in [20], provide C[1,1]-smooth tight-approximations of the squared distance functions. We introduce a result to calculate explicit formulae for the lower transform of the squared distance functions. Our first main result is the geometric characterisation of critical points of the quadratic lower compensated convex transform Cllambda dist2(x,K), which shows that the geometric non-smooth critical points o
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Luyt, Ian Christiaan Berning. "A leak tight design methodology for large diameter flanges based on non-linear modelling and analysis." Diss., University of Pretoria, 2015. http://hdl.handle.net/2263/56085.

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There is currently a need for large diameter flanges for the supply of water in South Africa. These large diameter pipe flanges are required to accommodate pipes with nominal bores of up to 4 m and should successfully withstand internal pressures of up to 8 MPa. No current relevant standard / code contains prescribed design values for flanges which either operate at such high pressures or have such large diameters. Due to this an alternative method of design, by means of non-linear finite element modelling, is proposed. Three types of integral flange designs are considered, namely: flat f
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Nyawo, Talent. "Design of a rotary valve for pressurised steam." Thesis, KTH, Maskinkonstruktion (Inst.), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192859.

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Denna rapport är gjord på ett examensarbete som var utfört på uppdrag av det svenska företaget Ranotor AB. Syftet var att utveckla en konceptuell lösning för en rotationsventil som skall fungera i en miljö med hög temperatur och högt tryck. Ventilen skall arbeta under höga rotationshastigheter, vilket kräver korta öppettider.Tekniska hjälpmedel såsom SolidWorks, ANSYS och MATLAB användes för att modellera och analysera de konceptuella lösningarna. Slutlösningen valdes från ett flertal olika koncept, varpå detta vidareutvecklades och optimerades. Betydande material och gastätningslösningar iden
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Seiser, Bernhard Josef. "Topologically close-packed phase prediction in Ni-based superalloys : phenomenological structure maps and bond-order potential theory." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:4298ebde-4b32-4dcc-b294-649493f9146c.

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Single crystal nickel-based superalloys are used in modern gas turbines because of their remarkable resistance to creep deformation at elevated temperatures, which is ensured by the addition of significant amounts of refractory elements. Too high concentrations of refractory elements can lead to the formation of topologically-close packed (TCP) phases during exposure to conditions of high temperature and stress which result in the degradation of the creep properties. The traditional methods for predicting the occurrence of TCP phases in Ni-based superalloys have been based on the PHACOMP and n
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Books on the topic "Tight designs"

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Boddie, John. Crunch mode: Building effective systems on a tight schedule. Prentice-Hall, 1987.

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Dresden, Carrie. Interior Design: Top 10 Rules for Amazing Interior Designs Within a Tight Budget That Will Freshen Up Your Home. CreateSpace Independent Publishing Platform, 2016.

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Payne, David Andrew. The design of vertical hydraulic fracture simulations for tight gas reservoirs. 1986.

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(Contributor), Hussein Chalayan, ed. Skin Tight: The Sensibility Of The Flesh. Museum of Contemporary Art, Chicago, 2004.

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Knapp, Pat Matson. Designers in Handcuffs: How to Create Great Graphics When Time, Materials and Money Are Tight. How Design Books, 2003.

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Honig, Dan. Agents. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190672454.003.0003.

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This chapter discusses agent judgment and when relying on agents will be a more or less reliable strategy. The chapter explores agent motivation and why it is critical to successful Navigation by Judgment. Agent motivation is a function of both treatment and selection effects. Job design can play an important role in changing agent motivation for better or for worse (treatment); job design can also prompt differential exit and entry of motivated agents into international development organizations (IDOs) (selection). It argues that there may be different equilibria IDOs can meet, with a Theory
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Weinthal, Erika, Avner Vengosh, and Kate Neville. The Nexus of Energy and Water Quality. Edited by Ken Conca and Erika Weinthal. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199335084.013.26.

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While the literature on the water-energy nexus tends to focus on scarcity and security, scientific research is revealing increasing concerns with the impact of energy production on water quality. This chapter explores the politics of energy and water quality, with a focus on water contamination associated with coal and shale gas development. It presents evidence of the effects of fossil fuel exploration and production on water quality, noting the life cycle water quality impacts of the coal industry and emerging work on the effects of unconventional shale gas and tight oil associated with hydr
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Sikorski, Krzysztof A. Optimal Solution of Nonlinear Equations. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195106909.001.0001.

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Optimal Solution of Nonlinear Equations is a text/monograph designed to provide an overview of optimal computational methods for the solution of nonlinear equations, fixed points of contractive and noncontractive mapping, and for the computation of the topological degree. It is of interest to any reader working in the area of Information-Based Complexity. The worst-case settings are analyzed here. Several classes of functions are studied with special emphasis on tight complexity bounds and methods which are close to or achieve these bounds. Each chapter ends with exercises, including companies
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Publications, Pap Pap. Notebook: Boat Lovers Gift Design - I Run a Tight Shipwreck Black Lined College Ruled Journal - Writing Diary 120 Pages. Independently Published, 2020.

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Publications, Pap Pap. Notebook: Silhouette of Ship Design - I Run a Tight Shipwreck Gift Black Lined College Ruled Journal - Writing Diary 120 Pages. Independently Published, 2020.

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Book chapters on the topic "Tight designs"

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Weyer, Elke. "Research Design." In From Loose to Tight Management. Springer Fachmedien Wiesbaden, 2017. http://dx.doi.org/10.1007/978-3-658-19749-0_3.

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Ryken, Scott A., Philippa R. Payne, and Laurel L. Schafer. "Tight Bite AngleN,O-Chelates. Amidates, Ureates and Beyond." In Ligand Design in Metal Chemistry. John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781118839621.ch13.

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Beck, Travis. "The Struggle for Coexistence: On Competition and Assembling Tight Communities." In Principles of Ecological Landscape Design. Island Press/Center for Resource Economics, 2013. http://dx.doi.org/10.5822/978-1-61091-199-3_3.

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Behjat, Hamid, and Dimitri Van De Ville. "Spectral Design of Signal-Adapted Tight Frames on Graphs." In Signals and Communication Technology. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-03574-7_4.

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Fontaine, J. F., G. M. Yang, J. C. Coquille, and M. Lambertin. "Tight Fit Design Taking into Account form and Surface Defects." In Integrated Design and Manufacturing in Mechanical Engineering. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9966-5_22.

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Jin, Leroy. "Tight Money in 1988–9: A Case Study." In Monetary Policy and the Design of Financial Institutions in China, 1978–90. Palgrave Macmillan UK, 1994. http://dx.doi.org/10.1057/9780230380172_7.

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Lin, Ruilin. "The Research Design of the Pressure-Tight Palette for Oil Paintings." In Lecture Notes in Electrical Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21697-8_110.

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Mills, G. L. "Design and Development of a Leak Tight Helium II Valve with Low Thermal Impact." In Advances in Cryogenic Engineering. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3368-9_77.

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Matthews, David A., Cheryl A. Janson, and Ward W. Smith. "Inhibitor Binding to Thymidylate Synthase Is Mediated by Different Structural Determinants than Those That Promote Tight Binding to Dihydrofolate Reductase." In Crystallographic and Modeling Methods in Molecular Design. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4612-3374-9_1.

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Lo, Jih-Sheng, Kim C. K. Lee, and Shyh-Chour Huang. "Hugging Tight for Comfort: Innovative Design of Sitting Hug Machine for The Therapy of Autism." In Advances in Intelligent Systems and Computing. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8612-0_59.

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Conference papers on the topic "Tight designs"

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Fickus, Matthew, John Jasper, Dustin Mixon, and Jesse Peterson. "Quasi-symmetric designs and equiangular tight frames." In SPIE Optical Engineering + Applications, edited by Manos Papadakis, Vivek K. Goyal, and Dimitri Van De Ville. SPIE, 2015. http://dx.doi.org/10.1117/12.2189347.

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Merzari, Elia, and Paul Fischer. "Controlling Turbulence in Tight Rod Bundles." In ASME 2013 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fedsm2013-16393.

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The flow in rod bundles is of key importance in a variety of engineering fields. It is representative, for instance, of the flow in a nuclear reactor core and the flow in a tube and shell heat exchanger. For particularly tight rod bundles (pitch to diameter ratio lower than 1.1 in hexagonal arrays) the flow is subject to a Kelvin-Helmholtz instability that is present in both laminar and turbulent flows and is likely to influence transition. Such instability has been proven to exist in bare bundles and even in bundles containing spacing devices. In fact, rod bundles are typically separated by d
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Lei, Zhengdong, Xinping Yang, Xiaoshan Li, Die Hu, Yushu Wu, and Yan Peng. "Advanced Modeling of Horizontal Well Performance Under Different Re-fracturing Designs in Tight Oil Reservoir." In SPE Europec featured at 81st EAGE Conference and Exhibition. Society of Petroleum Engineers, 2019. http://dx.doi.org/10.2118/195483-ms.

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Mishra, Shubham, Christopher Fredd, Dean Wilberg, and Umur Yanbollu. "Novel Completion Designs in Horizontal Well with Transverse Hydraulic Fractures for Enhanced Recovery in Unconventional or Tight Reservoirs." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206368-ms.

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Abstract Low recovery, 2 to 15%, in unconventional plays (including tight reservoirs and source rocks) has long been recognized as a business deterrent. The industry applies enhanced oil recovery (EOR) techniques, along with hydraulic fractures in tight/unconventional plays, to improve the recovery. To maximize matrix sweep, the fractures are aligned in a face-to-face assembly. Such an arrangement can be achieved using vertical or longitudinal hydraulic fracture on horizontal wells, but these, generally, do not provide as effective reservoir contact (hydraulic fracture surface area) as horizon
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Merzari, Elia, Azizul Khakim, and Hisashi Ninokata. "Large Eddy Simulation of the Flow in Tight-Lattice Rod Bundles at Low Reynolds Number." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78471.

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Tightly packed rod-bundles are looked upon as possible configurations for the core of a nuclear reactor. Unfortunately the flow in such rod bundles is accompanied by oscillations and strong turbulent mixing. In particular it exhibits large scale coherent structures in the gap regions between the rods. In the present work we propose an LES, with Dynamic Smagorinsky modeling, in boundary fitted coordinates aimed at reproducing such flow features. The algorithm is based on the fractional-step framework. Time advancement is carried out through a second order scheme, while the convective term is di
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Harting, T. A., D. L. Cox, R. Murillo, T. L. Young, K. A. Adegbola, and D. Schupp. "Application of Mini-Falloff Test to Determine Reservoir Parameters and Optimize Fracture Designs in a Tight Gas Field." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 2004. http://dx.doi.org/10.2118/90455-ms.

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Wu, Tao, Hanzhi Fang, Hu Sun, et al. "A Data-Driven Approach to Evaluate Fracturing Practice in Tight Sandstone in Changqing Field." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21821-ms.

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Abstract Unconventional reservoirs such as shale and tight sandstones that with ultra-low permeability, are becoming increasingly significant in global energy structures (Pejman T, et al., 2017). For these reservoirs, successful hydraulic fracturing is the key to extract the hydrocarbon resources efficiently and economically. However, the intrinsic mechanisms of fracturing growth in the tight formations are still unclear. In practice, fracturing design mainly depends on hypothetical models and previous experience, which leads to difficulties in evaluating the performance of the fracturing jobs
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Farahani, Arash, and Peter Childs. "Validation and Comparison of Strip Seal Designs for Gas Turbine Engine Nozzle Guide Vanes." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68311.

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Strip seals are commonly used to prevent or limit leakage flows between nozzle guide vanes (NGV) and other gas turbine engine components that are assembled from individual segments. Leakage flow across, for example, a nozzle guide vane platform, leads to increased demands on the gas turbine engine internal flow system and a rise in specific fuel consumption (SFC). Careful attention to the flow characteristics of strip seals is therefore necessary. The very tight tolerances associated with strip seals provides a particular challenge to their characterisation. This paper reports the validation o
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Feng, Yi, Y. Wang, and C. Y. Huang. "Study on Copper Cold Plate Designs for Electronics Liquid Cooling System." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-16242.

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The increasing power consumption of microelectronic systems and the dense layout of semiconductor components leave very limited design spaces with tight constraints for the thermal solution. Conventional thermal management approaches, such as extrusion, fold-fin, and heat pipe heat sinks, are somehow reaching their performance limits, due to the geometry constraints. Currently, more studies have been carried out on the liquid cooling technologies, as the flexible tubing connection of liquid cooling system makes both the accommodation in constrained design space and the simultaneous cooling of
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Gabor, Theodore T., Hang-Eun Joe, Semih Akin, Martin Byung-Guk Jun, Kyung-Han Kim, and Jong-Kwon Park. "Numerical Investigation of Various Coaxial Nozzle Designs for Direct Laser Deposition." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8444.

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Abstract Direct Laser Deposition (DLD) is a form of metal-based additive manufacturing. The DLD process involves ejecting powder out of a nozzle by means of an compressed gas and irradiating a laser beam to heat up the powder and the substrate. During the powder spray ejection, tight focusing of the powder stream has the potential to improve the DLD process by reducing powder wastage. Thus, nozzle design and computational fluid dynamics (CFD) analysis of the design parameters become important. This study focuses on the numerical simulation of the gas-solid flow inside a coaxial DLD nozzle and
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Reports on the topic "Tight designs"

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Mukul Sharma and Kyle Friehauf. Design and Implementation of Energized Fracture Treatment in Tight Gas Sands. Office of Scientific and Technical Information (OSTI), 2009. http://dx.doi.org/10.2172/982246.

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