1,722,920 research outputs found
Water pot ping guo zun
No full textAn apple-shaped water pot or ping guo zun. There are two subtypes of pots: one without a neck and the other with a pressed-in short neck with its lower part below the shoulder. Since this neckless water pot has a small inverted mouth, it belongs to the first type. The surface is covered with a monochrome light apple-green glaze. The lip provides a good indication of how thick the glaze on this pot is because the inner rim of the lip has been left unglazed. There is a noticeable crackle when the pot is closely examined. The foot of the pot is not glazed; it is indented at the center of the bowl. A deeply impressed inscription on the base of the pot 'ko ming xiang zao' indicates that it was made by the ko ming xiang kiln. The Ko was a famous potter who imitated Chun ware of the Sung Dynasty. Most pots of this type are Official Wares, that bear a six-character mark in regular script and three vertical lines on the base.Attributed to the Ming dynast
Latent crack path and service life predictions for unnotched concrete under bending by digital speckle correlation method.
No full textSupplemental-revised – Supplemental material for Clinical Features and Endolymphatic Hydrops in Patients With MRI Evidence of Hydrops
No full textSupplemental material, Supplemental-revised for Clinical Features and Endolymphatic Hydrops in Patients With MRI Evidence of Hydrops by Suming Shi, Ping Guo, Li Wenquan and Wuqing Wang in Annals of Otology, Rhinology & Laryngology</p
Effect of Variation Consentration Ion Nd3+ on the Physical and Optical Properties of TZBN Glasses as a Host Material Glass Laser
Full text linkThis study aims to determine the effect of Nd ionconcentration on the physical and optical
properties of tellurite glass. Tellurite glass used is TZBN (Tellurium Zinc Bismuth Natrium
Oxide), with composition (mol%) 60TeO2-(35-x) ZnO-2Bi2O3-3Na2O, and x(Nd2O3) with
variation of x= 0.5; 1.0; 1.5; 2.0; 2.5 mol% as a doping. Fabrication is done by using the melt
quenching method. The physical properties of glass density was measured using pycnometer.
Absorption spectra of glass be learned using UV-VIS-NIR spectroscopy in the range 400 nm
to 1100 nm. Refractive index values were measured using the method of Brewster angle at a
wavelength of 632.8 nm and 532 nm. The result of characterization shows that the density
index, refractive index and the optical absorption increase as the Nd3+
ions concentration
doped to tellurite glasses.
Keywords : ion Nd3+
concentration , TZBN, glass densit
Measurement and analysis of defects in high-performance concrete with three-dimensional micro-computer tomography.
No full textSimulation of fatigue fracture propagation in concrete using a lattice model
No full textThe fracture propagation in concrete under fatigue loading is analysed using a two-dimensional lattice model. A regular triangular lattice model (formed by pin-joined truss elements) accounting for the actual multiphase structure (at the meso-scale level) of the material is developed (an automatic image processing procedure for phase detection is adopted). The properties of each truss in the lattice are assigned according to the phase (coarse aggregate, mortar matrix, air bubble, mortar-aggregate interface) the truss lies over. Under monotonic loading, the trusses are assumed to have a linear elastic behavior in compression, whereas in tension a linear elastic behavior up to a certain peak load is followed by a linear softening branch. Fatigue damage is accounted for by considering a suitable elastic stiffness degradation. Some numerical results related to high-performance concrete specimens under high-cycle bending loading are presented
Investigation on fatigue damage mechanism of modern concrete microstructure by lattice model
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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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