РАДИОУГЛЕРОДНОЕ ДАТИРОВАНИЕ И ПОЖАРНАЯ ИСТОРИЯ РАННЕСРЕДНЕВЕКОВОГО ГОРОДА ДЖАНКЕНТ (Ю-В ПРИАРАЛЬЕ, КАЗАХСТАН)

Радиоуглерод в археологии и палеоэкологии: прошлое, настоящее, будущее. Материалы международной конференции, посвященной 80-летию старшего научного сотрудника ИИМК РАН, кандидата химических наук Ганны Ивановны Зайцевой ◽

10.31600/978-5-91867-213-6-17-18 ◽

2020 ◽

Author(s):

M. Bronnikova ◽

◽

A. Panin ◽

I. Arzhantseva ◽

H. Harke ◽

...

Keyword(s):

Core Drilling ◽

Non Destructive ◽

Marker Beds

A series of 63 14C dates were obtained from non-destructive core-drilling across the Dzhankent site (the early medie- val town located in Eastern Aral region), a second series – 58 dates from stratigraphic sections within excavated areas. Most of 14C dates are between the 7th and 10th centuries; clear up-section trends from older to younger ages may be seen. The analysed excavation sections are very well stratified. Stratigraphic units based on char-enriched marker beds could sometimes be traced for long distances. Extended thick char-enriched layers are considered to be traces of big fires, while small lenses of ash and charcoal are thought to be fireplaces.

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Commercial Concrete Quality Test

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.193-194.887 ◽

2012 ◽

Vol 193-194 ◽

pp. 887-890

Author(s):

Jin Yang Zhang

Keyword(s):

Structural Strength ◽

Concrete Strength ◽

Strength Test ◽

Quality Test ◽

Primary Analysis ◽

Core Drilling ◽

Destructive Test ◽

Reasonable Explanation ◽

Concrete Quality ◽

Non Destructive

The appearance of commercial concrete has heightened architectural construction level, improved construction civilization and offered the guarantee of the popularization and application of new tech significantly. Meanwhile, its popularization has brought the issues of structural solid concrete strength test and early plastic cracks. Currently, the solution for commercial concrete structural strength test is mainly done by means of method of non-destructive test of core-drilling correction. Merely the primary analysis can be done over the early plastic cracks to find no reasonable explanation toward those cracks, nor define the responsibilities of the related subjectival responsible parts that cause the cracks.

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Estimation of wood density by the core drilling technique

Holzforschung ◽

10.1515/hf-2018-0036 ◽

2018 ◽

Vol 72 (12) ◽

pp. 1051-1056 ◽

Cited By ~ 2

Author(s):

Ignacio Bobadilla ◽

Roberto D. Martínez ◽

Miguel Esteban ◽

Daniel F. Llana

Keyword(s):

Density Estimation ◽

Data Sets ◽

Species Determination ◽

Core Drilling ◽

The Core ◽

Hardwood Species ◽

Drilling Technique ◽

The Difference ◽

Non Destructive ◽

Destructive Methods

AbstractDensity estimation by non-destructive or semi-destructive methods is applied mainly on softwood species. The instruments are expensive, the methods are complicated and the determination coefficients are low. In the present study, the simple core hollow drilling approach is revisited. Data of 600 cores or cylindrical specimens from 300 pieces of 10 different softwood and hardwood species were evaluated in the density range from 350 to 975 kg m−3. The data were obtained from complete pieces and from the cores from core drilling, while the difference between the two data sets is 1.7%. At higher densities, the differences are greater. A model was proposed concerning the piece density estimation with a determination coefficient of 0.98. It is concluded that core drill is a cheap and reliable method for density estimation and the data are equally reliable for radial (R) or tangential (T) probing. The cylindrical cores obtained are suitable for moisture content (MC) and species determination.

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Analytical and numerical development of the incremental core-drilling method of non-destructive determination of in-situ stresses in concrete structures

The Journal of Strain Analysis for Engineering Design ◽

10.1177/030932471004500801 ◽

2010 ◽

Vol 45 (8) ◽

pp. 647-658 ◽

Cited By ~ 9

Author(s):

C Trautner ◽

M McGinnis ◽

S Pessiki

Keyword(s):

Concrete Structures ◽

Core Drilling ◽

Numerical Development ◽

In Situ Stresses ◽

Drilling Method ◽

Non Destructive

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Luminescence from individual dislocations in II-VI and III-V semiconductors

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100088488 ◽

1991 ◽

Vol 49 ◽

pp. 834-835

Author(s):

J W Steeds

Keyword(s):

Group Iv ◽

Luminescence Properties ◽

Carrier Recombination ◽

Transmission Electron ◽

Wide Range ◽

Basic Physics ◽

Semiconducting Compounds ◽

Diamond Group ◽

Non Destructive ◽

Technological Significance

There is a wide range of experimental results related to dislocations in diamond, group IV, II-VI, III-V semiconducting compounds, but few of these come from isolated, well-characterized individual dislocations. We are here concerned with only those results obtained in a transmission electron microscope so that the dislocations responsible were individually imaged. The luminescence properties of the dislocations were studied by cathodoluminescence performed at low temperatures (~30K) achieved by liquid helium cooling. Both spectra and monochromatic cathodoluminescence images have been obtained, in some cases as a function of temperature.There are two aspects of this work. One is mainly of technological significance. By understanding the luminescence properties of dislocations in epitaxial structures, future non-destructive evaluation will be enhanced. The second aim is to arrive at a good detailed understanding of the basic physics associated with carrier recombination near dislocations as revealed by local luminescence properties.

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Forensic Identifications Aided by Scanning Electron Microscopy of Silicone-Epoxy Microreplicas of Calcified and Cornified Structures

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100117017 ◽

1975 ◽

Vol 33 ◽

pp. 678-679 ◽

Cited By ~ 3

Author(s):

R.F. Sognnaes

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Forensic Science ◽

George Washington ◽

Epithelial Surface ◽

Extended Application ◽

Tissue Surfaces ◽

Non Destructive ◽

Scanning Electron ◽

Surface Changes

Sufficient experience has been gained during the past five years to suggest an extended application of microreplication and scanning electron microscopy to problems of forensic science. The author's research was originally initiated with a view to develop a non-destructive method for identification of materials that went into objects of art, notably ivory and ivories. This was followed by a very specific application to the identification and duplication of the kinds of materials from animal teeth and tusks which two centuries ago went into the fabrication of the ivory dentures of George Washington. Subsequently it became apparent that a similar method of microreplication and SEM examination offered promise for a whole series of problems pertinent to art, technology and science. Furthermore, what began primarily as an application to solid substances has turned out to be similarly applicable to soft tissue surfaces such as mucous membranes and skin, even in cases of acute, chronic and precancerous epithelial surface changes, and to post-mortem identification of specific structures pertinent to forensic science.

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