HARDNESS AND FRICTIONAL BEHAVIOUR OF DENTAL HYBRID COMPOSITE RESIN FILLED BY SILICON CARBIDE NANOFIBERS [PDF]
Journal of the Egyptian Society of Tribology, 2022 The objectives of the present investigation is to determine the effect of light curing time on the hardness and friction coefficient of composite resin filled with (SiC NFs). The materials used are hybrid composite resin and SiC NFs.
A. K. Ameer +3 more
doaj +1 more source
The minimum water curing recovery time after burning of aluminium fiber light weight concrete (with alwa as coarse aggregate) modulus elasticity [PDF]
AIP Conference Proceedings, 2019 The research concerns on the strength of light weight concrete with aluminum fiber as micro-reinforcement by environmental load especially burning and water curing. The purpose of this study was to determine the minimum time of water curing required to obtain full recovery of modulus elasticity.
Antonius Mediyanto +3 more
openaire +1 more source
Clumpy dust clouds and extended atmosphere of the AGB star W Hydrae revealed with VLT/SPHERE-ZIMPOL and VLTI/AMBER [PDF]
Astronomy & Astrophysics, 2016 14 pages, 9 figures, accepted for publication in Astronomy and ...
Ohnaka, K., Weigelt, G., Hofmann, K.
openaire +3 more sources
REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE [PDF]
Journal of Astronomy and Space Sciences, 2002 Observations of times of minimum lights of the eclipsing binary V65l Cas were carried out on the three nights from November 21-23, 2000. From our observations a total of seven new times of minimum lights was obtained.
Chun-Hwey Kim +4 more
doaj +1 more source
A Photometric Study of Near-Contact Binary ZZ Aur [PDF]
Journal of Astronomy and Space Sciences, 2002 The BVR CCD full light curves of ZZ Aur were obtained as one of the near-contact binary observing programs at the Sobaek Mt. Observatory during Feb. 2000 - Feb. 2001. From the present observations, three primary and seven secondary times of minimum light
Kyu-Dong Oh +3 more
doaj +1 more source
Apsidal Motion Study of Close Binary System CW Cephei [PDF]
Journal of Astronomy and Space Sciences, 2015 New observations for the times of minimum lights of a well-known apsidal motion star CW Cephei were made using a 0.6 m wide field telescope at Jincheon station of Chungbuk National University Observatory, Korea during the 2015 observational season.
Wonyong Han +5 more
doaj +1 more source
WASP light curve of the eclipsing binary VZ CVn [PDF]
Serbian Astronomical Journal, 2012 The WASP light curve of the eclipsing binary VZ CVn, consisting of more than 14000 individual observations, is analyzed for photometric elements using the modeling code of Đurašević (1992).
Latković O.
doaj +1 more source
The BV Photometry of the RR Lyrae Star, BH Ursae Majoris: Light Curves and Period Study [PDF]
Journal of Astronomy and Space Sciences, 2011 The first presented BV light curves of BH UMa confirmed Krajci’s (2005) result that BH UMa is an RR Lyr star that belongs to the RRc subgroup. The light curves showed a slight asymmetry of D = 0.453 with an amplitude of about 0.m58 in B, 0.m47 in V ...
Chun-Hwey Kim, Jang Hae Jeong
doaj +1 more source
A Modified Kwee–Van Woerden Method for Eclipse Minimum Timing with Reliable Error Estimates
Galaxies, 2020 The Kwee–van Woerden (KvW) method used for the determination of eclipse minimum times has been a staple in eclipsing binary research for decades, due its simplicity and the independence of external input parameters, which also makes it well-suited to ...
Hans J. Deeg
doaj +1 more source
Photometric Study of a W UMa Type Contact Binary AH CNC [PDF]
Journal of Astronomy and Space Sciences, 2003 CCD photometric observations of a W UMa type contact binary AH Cnc were performed for ten nights from December 1998 to May 1999 using a PM512 CCD camera and BVI filters attached to the 61cm reflector at Sobaeksan Optical Astronomy Observatory.
Jae-Hyuck Youn +6 more
doaj +1 more source