100,486 research outputs found
A novel three-phase UPS system with a single-phase resonant HF link
No full textThis paper presents a new three-phase uninterruptible power supply (UPS) system based on a single-phase resonant high frequency (HF) link and a single-phase transformer. The three-phase output voltage is constructed and regulated from a three-phase cycloconverter fed from the constant amplitude, constant frequency link voltage. The generation of a novel switching stategy for the three-phase cycloconverter is presented. The simulation of the proposed system is carried out and verified with experimental results
Joshua Davis: Author of Spare Parts
No full textCitation: K-State First (2016). Joshua Davis: Author of Spare Parts [Flier]. Manhattan, Kansas: K-State First.Flyer advertising Joshua Davis's author talk at Kansas State University
Steven Johnson Author Talk Poster
No full textK-State Book NetworkA poster advertising an author talk by Steven Johnson at Kansas State University on September 3, 2014. Steven Johnson's book "The Ghost Map" was the 2014-2015 common book
Convective schemes for capturing interfaces of free-surface flows on unstructured grids
No full textIn this article, the general methodology used in constructing interface-capturing schemes is clarified and concisely described. Moreover, a new interface-capturing scheme, denoted STACS and based on a switching strategy, is developed. The accuracy of the new scheme is compared to the well-known CICSAM and HRIC schemes by solving four pure advection test problems. Results, displayed in the form of interface contours for the various schemes, reveal deterioration in the accuracy of the CICSAM and HRIC schemes, with their performance approaching that of the UPWIND scheme as the Courant number increases. On the other hand, predictions obtained with the new STACS scheme are by far more accurate and less diffusive, preserving interface sharpness and boundedness at all Courant number values considered.BRACKBILL JU, 1992, J COMPUT PHYS, V100, P335, DOI 10.1016-0021-9991(92)90240-Y; BRANDT A, 1977, MATH COMPUT, V31, P333; Cleary PW, 2000, INT J CAST METAL RES, V12, P357; Darwish M, 1996, COMPUT METHOD APPL M, V129, P221, DOI 10.1016-0045-7825(95)00881-0; Darwish M, 2001, NUMER HEAT TR B-FUND, V40, P99; Darwish M, 2000, NUMER HEAT TR B-FUND, V37, P227; DARWISH M, 2000, P 36 AIAA ASME SAE A; DARWISH M, 2002, P IASTED INT C APPL; Darwish MS, 1998, NUMER HEAT TR B-FUND, V34, P191, DOI 10.1080-10407799808915054; Darwish MS, 2003, INT J HEAT MASS TRAN, V46, P599, DOI 10.1016-S0017-9310(02)00330-7; DARWISH MS, 1993, NUMER HEAT TR B-FUND, V24, P353, DOI 10.1080-10407799308955898; Ha J., 1999, P 2 INT C CFD MIN PR; HARLOW FH, 1971, LA4700 LASA; Harvie DJE, 2001, INT J NUMER METH FL, V35, P151, DOI 10.1002-1097-0363(20010130)35:2151::AID-FLD873.0.CO;2-4; HIRT CW, 1981, J COMPUT PHYS, V39, P201, DOI 10.1016-0021-9991(81)90145-5; Jasak H, 1996, THESIS TECHNOLOGY ME; Kothe D B, 1999, P 3 ASME JSME JOINT; KOTHE DB, 1992, AIAA J, V30, P2694, DOI 10.2514-3.11286; LAFAURIE B, 1994, J COMPUT PHYS, V113, P134, DOI 10.1006-jcph.1994.1123; LEONARD BP, 1990, COMPUT METH APPL MEC, P59; LEONARD BP, 1991, COMPUT FLUIDS, V19, P141, DOI 10.1016-0045-7930(91)90011-6; LEONARD BP, 1990, INT J NUMER METH ENG, V30, P729, DOI 10.1002-nme.1620300412; LEONARD BP, 1991, COMPUT METHOD APPL M, V88, P17, DOI 10.1016-0045-7825(91)90232-U; Maronnier V, 1999, J COMPUT PHYS, V155, P439, DOI 10.1006-jcph.1999.6346; Darwish M, 2003, INT J NUMER METH FL, V41, P1221, DOI 10.1002-fld.490; MOUKALLED F, 1996, NUMER HEAT TRANSFE B, V31, P91; Moukalled F, 2001, J COMPUT PHYS, V168, P101, DOI 10.1006-jcph.2000.6683; Moukrim A, 2003, RAIRO-OPER RES, V37, P1, DOI 10.1051-ro:2003011; Muzaferija S, 1998, P 22 S NAV HYDR WASH, P638; Muzaferija S, 1998, NONLINEAR WATER WAVE, P59; Nichols B., 1980, LA8355; Nichols B.D., 1975, P 1 INT C NUM SHIP H; Noh W. F., 1976, LECTURE NOTES PHYSIC, V59, P330; OSHER S, 1983, J COMPUT PHYS, V50, P447, DOI 10.1016-0021-9991(83)90106-7; Puckett EG, 1991, P 4 INT S COMP FLUID, P933; RAMSHAW JD, 1976, J COMPUT PHYS, V21, P438, DOI 10.1016-0021-9991(76)90039-5; Renardy Y, 2002, J COMPUT PHYS, V183, P400, DOI 10.1006-jcph.2002.7190; Rhie C.M., 1986, 860207 AIAA; Rider WJ, 1998, J COMPUT PHYS, V141, P112, DOI 10.1006-jcph.1998.5906; RIDER WJ, 1995, P 12 AIAA CFD C SAN; Rudman M, 1997, INT J NUMER METH FL, V24, P671, DOI 10.1002-(SICI)1097-0363(19970415)24:7671::AID-FLD5083.0.CO;2-9; SHYY W, 1988, 883566CP AIAA; SHYY W, 1992, AIAA J, V30, P2660, DOI 10.2514-3.11282; Ubbink O, 1999, J COMPUT PHYS, V153, P26, DOI 10.1006-jcph.1999.6276; UNVERDI SO, 1992, J COMPUT PHYS, V100, P25, DOI 10.1016-0021-9991(92)90307-K; YOUNGS DL, 1984, 449235 AT WEAP RES E; ZALESAK ST, 1979, J COMPUT PHYS, V31, P335, DOI 10.1016-0021-9991(79)90051-223252
A fully coupled navier-stokes solver for fluid flow at all speeds
No full textThis article deals with the formulation and testing of a newly developed, fully coupled, pressure-based algorithm for the solution of fluid flow at all speeds. The new algorithm is an extension into compressible flows of a fully coupled algorithm developed by the authors for laminar incompressible flows. The implicit velocity-pressure-density coupling is resolved by deriving a pressure equation following a procedure similar to a segregated SIMPLE algorithm using the Rhie-Chow interpolation technique. The coefficients of the momentum and continuity equations are assembled into one matrix and solved simultaneously, with their convergence accelerated via an algebraic multigrid method. The performance of the coupled solver is assessed by solving a number of two-dimensional problems in the subsonic, transsonic, supersonic, and hypersonic regimes over several grid systems of increasing sizes. For a desired level of convergence, results for each problem are presented in the form of convergence history plots, tabulated values of the maximum number of required iterations, the total CPU time, and the CPU time per control volume. © 2014 Taylor and Francis Group, LLC.Abbasi R, 2013, COMPUT FLUIDS, V81, P68, DOI 10.1016-j.compfluid.2013.03.014; Acharya S, 2007, J HEAT TRANS-T ASME, V129, P407, DOI 10.1115-1.2716419; Anderson Jr J.D., 1982, MODERN COMPRESSIBLE; Anjorin V. A. O., 2001, INT J FLUID DYNAM, V5, P59; Barton IE, 1998, INT J NUMER METH FL, V26, P459, DOI 10.1002-(SICI)1097-0363(19980228)26:4459::AID-FLD6453.0.CO;2-U; BATINA JT, 1991, AIAA J, V29, P1836, DOI 10.2514-3.10808; Blokhin AM, 2009, SB MATH+, V200, P157, DOI 10.1070-SM2009v200n02ABEH003990; Cabboussat A., 2005, J COMPUT PHYS, V203, P626; Caretto L. S., 1972, Computer Methods in Applied Mechanics and Engineering, V1, DOI 10.1016-0045-7825(72)90020-5; Darwish M, 2001, NUMER HEAT TR B-FUND, V40, P99; Darwish M, 2007, NUMER HEAT TR B-FUND, V52, P353, DOI 10.1080-10407790701372785; Darwish M, 2004, NUMER HEAT TR B-FUND, V45, P49, DOI 10.1080-1040779049025487; Darwish M, 2009, J COMPUT PHYS, V228, P180, DOI 10.1016-j.jcp.2008.08.027; DEMIRDZIC I, 1993, INT J NUMER METH FL, V16, P1029, DOI 10.1002-fld.1650161202; Deng GB, 2001, COMPUT FLUIDS, V30, P445, DOI 10.1016-S0045-7930(00)00025-6; Dettmer W, 2006, COMPUT METHOD APPL M, V195, P3038, DOI 10.1016-j.cma.2004.07.057; Elling V, 2008, COMMUN PUR APPL MATH, V61, P1347, DOI 10.1002-cpa.20231; Favini B, 1996, INT J NUMER METH FL, V23, P589, DOI 10.1002-(SICI)1097-0363(19960930)23:6589::AID-FLD4443.3.CO;2-R; Grismer M. J., 1994, THESIS NOTRE DAME U; Hirsch C., 1990, NUMERICAL COMPUTATIO; HWANG CJ, 1993, AIAA J, V31, P61, DOI 10.2514-3.11319; Karlci K. C., 1986, THESIS U MINNESOTA; Khalid M. S., 2009, P WORLD C ENG 2009 W; Kissling K., 2010, 5 EUR C COMP FLUID D; Langtry RB, 2005, 2005522 AIAA; LIEN FS, 1993, J FLUID ENG-T ASME, V115, P717, DOI 10.1115-1.2910204; LIEN FS, 1994, COMPUT METHOD APPL M, V114, P123, DOI 10.1016-0045-7825(94)90165-1; MARCHI CH, 1994, NUMER HEAT TR B-FUND, V26, P293, DOI 10.1080-10407799408914931; Menter F, 2003, TURBULENCE HEAT MASS, V4, P2003; Modesto-Madera N. A., 2010, THESIS RENSSELAER PO; Moguen Y, 2013, J COMPUT APPL MATH, V246, P136, DOI 10.1016-j.cam.2012.10.029; Montero R. S., 2000, 200027 NASA ICASE; Moukalled F, 2003, J COMPUT PHYS, V190, P550, DOI 10.1016-S0021-9991(03)00297-3; Moukalled F, 2004, NUMER HEAT TR B-FUND, V45, P343, DOI 10.1080-10407790490268841; Darwish M, 2003, INT J NUMER METH FL, V41, P1221, DOI 10.1002-fld.490; Moukalled F, 2000, NUMER HEAT TR B-FUND, V37, P103; Moukalled F, 2002, NUMER HEAT TR B-FUND, V42, P259, DOI 10.1080-10407790190053941; Moukalled F, 2001, J COMPUT PHYS, V168, P101, DOI 10.1006-jcph.2000.6683; Muzaferija S, 1997, J COMPUT PHYS, V138, P766, DOI 10.1006-jcph.1997.5853; PATANKAR SV, 1972, INT J HEAT MASS TRAN, V15, P1787, DOI 10.1016-0017-9310(72)90054-3; Rhie C., 1983, AIAA J, V17, P1525; Rispoli F., 2009, ASME J APPL MECH, V76, DOI [10.1115-1.3062969, DOI 10.1115-1.3062969]; Rossow CC, 2007, J COMPUT PHYS, V220, P879, DOI 10.1016-j.jcp.2006.05.034; Shapiro A. H., 1953, DYNAMICS THERMODYNAM; Shapiro E, 2005, J COMPUT PHYS, V210, P584, DOI 10.1016-j.jcp.2005.05.001; Shterev KS, 2010, J COMPUT PHYS, V229, P461, DOI 10.1016-j.jcp.2009.09.042; Tao WQ, 2004, NUMER HEAT TR B-FUND, V45, P1, DOI 10.1080-1040779049025485; Tezduyar TE, 2006, COMPUT MECH, V38, P469, DOI 10.1007-s00466-005-0025-6; VANDOORMAAL JP, 1984, NUMER HEAT TRANSFER, V7, P147, DOI 10.1080-10407798408546946; van Wachem B. G. M., 2006, EUR C COMP FLUID DYN; van Wachem B. G. M., 2007, 6 INT C MULT FLOW IC; Yaldin Y., 1991, AIAA J, V29, P712; Yang JY, 2001, AIAA J, V39, P2082, DOI 10.2514-2.1231; ZHANG LX, 2011, J HYDRODYN, V23, P421
Ruang Ketiga dan Konstruksi Identitas: Hibriditas dalam Karya Mahmoud Darwish
No full textThis paper discusses how identity was constructed in Mahmoud Darwish's literary works. Mahmoud Darwish is a symbol of Palestine both poetically and politically. Darwish's life as a refugee and exile greatly influenced his works and attitude towards Israeli-Palestinian peace. This research is qualitative research using literary methods. The data in this study were taken from Mahmoud Darwish’s literary works such as Awraq al-Zaytun (Leaves of Olives), Yawmiyyat Jurh Filastini (Diary of a Palestinian Wound), Muhawalah Raqm 7 (Attempt Number 7), Kazahri al-Lawz aw Ab’ad (Like Almond Flower and Further), Shai’on ‘an al-Wathan (Something about the Homeland) and Dhakirah li-al-Nisyan (Memory for Forgetfulness). In this study, Mahmoud Darwish's works were analyzed using Homi K. Bhabha's post-colonialism theory. Bhabha's idea of hybridity and the third space was used to explain how the homeland was conceived, and identity was constructed in Darwish’s works. The results of this study indicate that the homeland for Darwish is a symbolic and effective one. It can be imagined, but cannot be possessed. Darwish identity was constructed in the third space; a hybrid place where the colonizer and the colonized coexist in the same space
AL USLUB AL LUGHAWI FI QASIDATAIN "MATARUN" WA QAMAR AL SYTAI LI MAHMUD DARWISH
No full textPenelitian ini merupakan penelitian kepustakaan (library research) yang dilakukan untuk mengungkapkan dinamika yang tersembunyi di balik kata-kata, yang terdapat dalam puisi maṭarun dan qamarun asy-sytāi karya Mahmud Darwish. Teori yang digunakan adalah analisis stilistika. Sumber data penelitian ini merupakan teks puisi maṭarun dan qamarun asy-sytāi dalam antologi Mahmud Darwish Asiq min Palestin. Puisi pertama yaitu maṭarun terdiri dari 4 bait dan menggambarkan nostalgia akan warisan dan alam, melalui berbagai simbol dan metafora seperti gambaran hujan, bunga lili, dan tanah yang dahaga. Dan secara keseluruhan makna-makna yang didapati merupakan gambaran pesan tentang untuk merenungkan siklus kehidupan, kehilangan, dan harapan akan kebahagiaan. Untuk puisi kedua yaitu qamarun asy-sytāi terdiri dari 5 bait, yang menggambarkan rasa kecewa dan amarah penyair atas pengkhianatan yang dirasakannya. Dan untuk keseluruhan, makna-makna yang didapati merupakan gambaran pesan tentang kekecewaan, pengkhianatan dan kehilangan.
Dengan pendekatan analisis stilistika, penelitian ini menunjukkan bahwa dalam puisi maṭarun, Darwish menggunakan konsonan "Ra" yang merupakan sawamit mukarrarah (getar) secara dominan, menciptakan efek ritmis dan emosional yang mencerminkan perjuangan Palestina. Vokal juga berperan penting: vokal "a" memberikan nuansa mendalam, "i" menambah kehalusan, dan "u" memberikan kekuatan pada teks. Sebaliknya, dalam puisi qamarun asy-sytāi, Darwish memanfaatkan konsonan dan vokal seperti /s/, /k/, /b/, /t/, dan /m/ untuk membentuk aliran, kekuatan, dan kehangatan, sementara vokal "a" yang berbaris mati menambah intensitas emosional. Efek fonologis ini mencerminkan perjuangan bangsa Palestina dan memperkuat pesan puisi. Analisis morfologi kedua puisi mengungkapkan penggunaan gaya bahasa (isim mustaq) seperti isim masdar dan mabni lil majhul yang memperkaya ekspresi penyair. Sintaksis juga berperan penting, dengan Darwish menggunakan uslub al-fi’li dan uslubul isim untuk menekankan makna dan menciptakan efek dramatis dalam bait-baitnya.
Selain itu, kedua puisi ini menunjukkan penggunaan perangkat majaz seperti antonim, sinonim, tasybih, tikrar, personifikasi, dan kinayah untuk memperdalam makna dan citra yang disampaikan. Darwish dengan cermat menyajikan gambaran yang kaya dan mendalam tentang realitas Palestina melalui struktur fonologis, morfologis, sintaksis, dan gaya bahasa yang khas dalam karyanya
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Comparative human resource management
No full textThis chapter focuses on comparative human resource management (HRM). It explores the differences between nations in the way that they manage their human resources. Within a context of increasing globalisation, the chapter highlights how context matters to HRM. Fundamental to understanding these differences between countries are two concepts: the notions of cultural and institutional differences, and the notions of convergence and divergence. The chapter contributes to a better understanding of the main concepts and theories relevant to comparative HRM. First, this chapter shows that cultural and institutional explanations are valuable to the comparative HRM approach. Further, it argues that convergence of trends is apparent, but final convergence remains unrealistic. Finally, it outlines some of the key theoretical, empirical and practical challenges posed by a comparative approach to HRM
A new configuration for shunt active power filters
No full textThis thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis presents a new power circuit configuration to be used in shunt active power filters. A new control algorithm based on the linear voltage control suitable for the proposed circuit is introduced. The system is analysed both in time and frequency domains. The practical implementation of the system proves its suitability for the proposed task. The switching frequency of the proposed circuit is much lower than that in other active filters. The switching losses are then considerably reduced, in addition to the fact that the switching devices can withstand larger values of currents being switched on and off at lower frequencies which is an advantage to this circuit. The component sizes (capacitors and inductors) in the proposed circuit are also much smaller than those in other filter configurations.
In addition, the thesis presents a new method for categorising the active filter systems proposed in the surveyed literature. The survey includes a comparison of these techniques showing their respective merits and drawbacks. The thesis also includes an implementation of a reference current generator that is suitable for single-phase applications without the need for excessive computations. The technique involves a modified Fourier analysis, which is suitable for active filtering applications
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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