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81.
A detail study involving flow visualization, Laser Doppler Velocimeter (LDV) measurements and numerical prediction is presented. The visualization experiments revealed striking results of a pulsatile motion in the separated flow region associated with the formation and passage of large eddy structures. Measurements of mean velocities and turbulence intensity profiles across the separated flow field, provided information about the separated shear layer development and the recirculating flow pattern. The numerical predictions, obtained with a two-layer turbulence model in conjunction with the SIMPLE algorithm, failed to reproduce the coherent eddies and the pulsatile motion, but the mean velocities are reasonably reproduced. 相似文献
82.
Thuy-Kieu Truong Ji Hyun Park MD Asiqur Rahman Martin Urbanski Eun Sung Kim Giusy Scalia Dongseok Suh 《Current Applied Physics》2019,19(2):162-167
The use of a highly aligned carbon nanotube (CNT) sheet as a multifunctional constituent for liquid crystal (LC) displays and electro-optic LC applications is assessed. The CNT sheet can perform a dual function: one is an alignment layer for LCs, replacing the commonly used rubbed polyimide film, and the other is a transparent conductive layer, taking the place of indium tin oxide. The hydrophobic treatment improved the adhesion quality between aligned CNT bundles and the glass substrate, which helps to preserve the inherently aligned nanogroove morphology of transparent CNT sheets. The test LC display cells, comprising 4-cyano-4′-pentylbiphenyl molecules sandwiched between CNT-sheet-on-glass substrates, demonstrate the operation characteristics comparable to that of the conventional cell under temperature variation and ac electric field of 1?kHz. The results offer a possibility of deploying multifunctional CNT-sheet alignment layers in LC-based devices, especially in the future flexible display applications. 相似文献
83.
84.
A nearlattice S is a meet semilattice together with the property that any two elements possessing a common upper bound have a supremum. Here the authors have introduced the notion of sectionally semicomplemented distributive nearlattices and given several characterizations of them. The skeleton SCon(S) of Con(S), the congruence lattice, consists of all those nearlattice congruences which are the pseudocomplements of members of Con(S). The relationship between skeletal congruences and kernel of skeletal congruences leads to numerous characterizations of sectionally semicomplemented distributive nearlattices and semiboolean algebras. For example we prove, for a distributive nearlattice S with 0, the following conditions are equivalent:
AMS Subject Classifications (1991): 06A12, 06A99, 06B10. 相似文献
(i) | S is sectionally semicomplemented |
(ii) | The map Θ Θ ̸ker Θ of SCon(S) onto KSCon(S) is one-to-one. |
(iii) | The map Θ Θ ̸ker Θ of SCon(S) onto KSCon(S) preserves finite joins. |
(iv) | The map Θ Θ ker ̸Θ is a lattice isomorphism of SCon(S) onto KSCon(S), whose inverse is the map J ̸ Θ(J)**. |
85.
Bowcock T Giles RT Hassard J Kinoshita K Pipkin FM Wilson R Wolinski J Xiao D Gentile T Haas P Hempstead M Jensen T Kagan H Kass R Behrends S Guida JM Guida JA Morrow F Poling R Thorndike EH Tipton P Alam MS Katayama N Kim IJ Sun CR Tanikella V Bortoletto D Chen A Garren L Goldberg M Holmes R Horwitz N Jawahery A Lubrano P Moneti GC Sharma V Csorna SE Mestayer MD Panvini RS Word GB Bean A Bobbink GJ Brock IC Engler A Ferguson T Kraemer RW Rippich C Vogel H Bebek C Berkelman K Blucher E 《Physical review letters》1987,58(4):307-310
86.
Alam MS Katayama N Kim IJ Li WC Lou XC Sun CR Tanikella V Bortoletto D Chen A Goldberg M Holmes R Horwitz N Jawahery A Lubrano P Moneti GC Sharma V Shipsey IP Thoma P Csorna SE Mestayer MD Panvini RS Word GB Bean A Bobbink GJ Brock IC Engler A Ferguson T Kraemer RW Rippich C Vogel H Bebek C Berkelman K Blucher E Cassel DG Copie T DeSalvo R DeWire JW Ehrlich R Galik RS Gilchriese MG Gittleman B Gray SW Halling AM Hartill DL Heltsley BK Holzner S Kandaswamy J Kowalewski R Kreinick DL Kubota Y 《Physical review letters》1987,59(1):22-25
87.
Behrends S Guida JM Guida JA Morrow F Poling R Thorndike EH Tipton P Alam MS Katayama N Kim IJ Li WC Lou XC Sun CR Tanikella V Bortoletto D Chen A Goldberg M Holmes R Horwitz N Jawahery A Lubrano P Moneti GC Sharma V Shipsey IP Thoma P Csorna SE Mestayer MD Panvini RS Word GB Bean A Bobbink GJ Brock IC Engler A Ferguson T Kraemer RW Rippich C Vogel H Bebek C Berkelman K Blucher E Cassel DG Copie T DeSalvo R DeWire JW Ehrlich R Galik RS Gilchriese MG Gittelman B Gray SW Halling AM Hartill DL 《Physical review letters》1987,59(4):407-410
88.
Alam MS Katayama N Kim IJ Sun CR Tanikella V Bortoletto D Chen A Goldberg M Holmes R Horwitz N Jawahery A Lubrano P Moneti GC Sharma V Thoma P Csorna SE Mestayer MD Panvini RS Word GB Bean A Bobbink GJ Brock IC Engler A Ferguson T Kraemer RW Rippich C Vogel H Bebek C Berkelman K Blucher E Cassel DG Copie T DeSalvo R DeWire JW Ehrlich R Galik RS Gilchriese MG Gittelman B Gray SW Halling AM Hartill DL Heltsley BK Holzner S Ito M Kandaswamy J Kowalewski R Kreinick DL Kubota Y Mistry NB Mueller J 《Physical review letters》1987,58(18):1814-1817
89.
Bortoletto D Goldberg M Horwitz N Mestayer MD Moneti GC Sharma V Shipsey IP Skwarnicki T Csorna SE Letson T Brock IC Ferguson T Alexander J Artuso M Bebek C Berkelman K Cassel DG Cheu E Coffman DM Crawford G DeWire JW Drell PS Ehrlich R Galik RS Gittelman B Gray SW Halling AM Hartill DL Heltsley BK Kandaswamy J Kowalewski R Kreinick DL Kubota Y Lewis JD Mistry NB Mueller J Namjoshi R Nandi S Nordberg E O'Grady C Peterson D Pisharody M Riley D Sapper M Silverman A Stone S Worden H Worris M 《Physical review letters》1989,63(16):1667-1670
90.
Bowcock T Kinoshita K Pipkin FM Procario M Wilson R Wolinski J Xiao D Haas P Hempstead M Jensen T Johnson DR Kagan H Kass R Morrow FM Baringer P McIlwain RL Miller DH Ng CR Shibata EI Poling R Alam MS Katayama N Kim IJ Li WC Lou XC Sun CR Tanikella V Bortoletto D Goldberg M Holmes R Horwitz N Jawahery A Lubrano P Moneti GC Sharma V Shipsey IP Csorna SE Mestayer MD Brock IC Ferguson T Vogel H Bebek C Berkelman K Blucher E Byrd J Cassel DG Coffman DM Copie T DeSalvo R DeWire JW Ehrlich R Galik RS 《Physical review D: Particles and fields》1989,40(5):1701