Comparison of induced thermal change to climate chamber simulated environmental change in mosaic model by digital holographic speckle pattern interferometry (DHSPI)

2019 ◽  
Author(s):  
Antonina Chaban ◽  
Vivi Tornari ◽  
Michalis Andrianakis ◽  
Rita Deiana
Keyword(s):  
Environmental Change ◽  
Speckle Pattern ◽  
Climate Chamber ◽  
Thermal Change ◽  
Mosaic Model

Effect of Kaolin Ratio on the Durability of Phenol-Formaldehyde Adhesive Poplar Plywood

2011 ◽  
Vol 183-185 ◽  
pp. 1822-1826 ◽  
Author(s):  
Ying Jie Guo ◽  
Hai Qing Ren
Keyword(s):  
Environmental Change ◽  
Bonding Strength ◽  
Phenol Formaldehyde ◽  
Phenol Formaldehyde Resin ◽  
Filling Ratio ◽  
Formaldehyde Resin ◽  
Xenon Lamp ◽  
Climate Chamber ◽  
High Level ◽  
Main Factor

In order to search whether or not the kaolin ratio was one of the crucial reasons influenced on the durability of Poplar Plywood utilizing outdoor which was adhesive by phenol-formaldehyde resin. Xenon Lamp Climate Chamber process and ASTMD1037 Six-cycle method were evolved in this study to measure the durability of the plywood. There was no relativity between the kaolin ratio and the durability of the Poplar Plywood. The main factor impacting the endurance property of the Plywood was the degradations of veneer and Phenol-Formaldehyde resin caused by environmental change. The kaolin filling ratio of Phenol-Formaldehyde adhesive is not able to reduce the durability of the Poplar Plywood. Under the two method treatments, the bonding strength of the laminate wood still fulfills the Plywood GB/T17657-1999 National Stander even the ratio of kaolin is in high-level. Therefore, it is a preferable choice to adopt kaolin as filling in phenol-formaldehyde.

scholarly journals A Combined Non-Invasive Approach to the Study of A Mosaic Model: First Laboratory Experimental Results

2019 ◽  
Vol 5 (6) ◽  
pp. 58 ◽  
Author(s):  
Antonina Chaban ◽  
Vivi Tornari ◽  
Rita Deiana ◽  
Michalis Andrianakis ◽  
David Giovannacci ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Speckle Pattern ◽  
Experimental Results ◽  
Contact Method ◽  
Invasive Approach ◽  
Full Field ◽  
Non Invasive ◽  
Mosaic Model ◽  
Electromagnetic Methods ◽  
Micro Deformation

This paper presents first laboratory results of a combined approach carried out by the use of three different portable non-invasive electromagnetic methods: Digital holographic speckle pattern interferometry (DHSPI), stimulated infrared thermography (SIRT) and holographic subsurface radar (HSR), proposed for the analysis of a custom-built wall mosaic model. The model reproduces a series of defects (e.g., cracks, voids, detachments), simulating common deteriorated, restored or reshuffled areas in wall mosaics. DHSPI and SIRT, already well known in the field of non-destructive (NDT) methods, are full-field contactless techniques, providing complementary information on the subsurface hidden discontinuities. The use of DHSPI, based on optical imaging and interferometry, provides remote control and visualization of surface micro-deformation after induced thermal stress, while the use of SIRT allows visualization of thermal energy diffusion in the surface upon the induced thermal stress. DHSPI and SIRT data are complemented by the use of HSR, a contact method that provides localized information about the distribution of contrasts in dielectric permittivity and related possible anomalies. The experimental results, made by the combined use of these methods to the identification of the known anomalies in the mosaic model, are presented and discussed here as a contribution in the development of an efficient non-invasive approach to the in-situ subsurface analysis of ancient wall mosaics.

Device for calibration of electronic speckle pattern interferometers

2019 ◽  
pp. 27-32
Author(s):  
A.D. Ivanov ◽  
V.L. Minaev ◽  
G.N. Vishnyakov ◽  
G.G. Levin
Keyword(s):  
Speckle Pattern

An historical analysis of species references in American English

Corpora ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. 327-349
Author(s):  
Craig Frayne
Keyword(s):  
Environmental Change ◽  
Sentiment Analysis ◽  
Quantitative Methods ◽  
English Language ◽  
Language Use ◽  
American English ◽  
Historical Analysis ◽  
The Past ◽  
Corpus Studies ◽  
Google Books

This study uses the two largest available American English language corpora, Google Books and the Corpus of Historical American English (coha), to investigate relations between ecology and language. The paper introduces ecolinguistics as a promising theme for corpus research. While some previous ecolinguistic research has used corpus approaches, there is a case to be made for quantitative methods that draw on larger datasets. Building on other corpus studies that have made connections between language use and environmental change, this paper investigates whether linguistic references to other species have changed in the past two centuries and, if so, how. The methodology consists of two main parts: an examination of the frequency of common names of species followed by aspect-level sentiment analysis of concordance lines. Results point to both opportunities and challenges associated with applying corpus methods to ecolinguistc research.

Thermal change of the structure of FeCo-MgF nano-granular TMR films

2012 ◽  
Vol 36 (3) ◽  
pp. 209-212 ◽  
Author(s):  
N. Kobayashi ◽  
T. Tsurui ◽  
K. Ishida ◽  
T. Iwasa ◽  
K. I. Arai ◽  
...  
Keyword(s):  
Thermal Change
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