scholarly journals Examination of fecal pellet physical characteristics of an invasive drywood termite, Cryptotermes dudleyi (Isoptera: Kalotermitidae): A potential approach for species marker and non-destructive monitoring method

2020 ◽  
Vol 935 ◽  
pp. 012050
Author(s):  
S L D Zega ◽  
A Fajar ◽  
S K Himmi ◽  
D S Adi ◽  
D Tarmadi ◽  
...  
Keyword(s):  
Fecal Pellet ◽  
Physical Characteristics ◽  
Monitoring Method ◽  
Potential Approach ◽  
Non Destructive

scholarly journals Non-Destructive Photon Activation Analysis in Paleontology

Proceedings ◽  
2018 ◽  
Vol 2 (10) ◽  
pp. 564
Author(s):  
Tyler C. Borgwardt
Keyword(s):  
Activation Analysis ◽  
Trace Element Analysis ◽  
Photon Activation Analysis ◽  
Physical Characteristics ◽  
Analysis Tool ◽  
Photon Activation ◽  
Sample Type ◽  
Element Analysis ◽  
Non Destructive ◽  
Destructive Methods

Paleontological samples are rare and non-renewable, which makes the study of their chemical or physical characteristics require non-destructive methods. Physical characteristics are routinely studied with non-destructive methods; however, chemical studies tend to require destructive methods unless samples are very small or only the surface compositions are of interest. One potential technique for non-destructive elemental analysis is photon activation analysis (PAA). PAA is a versatile, broad-spectrum, multi-element analysis tool with low sensitivities, capable of analyzing large samples without any alteration, preserving the physical characteristics. Recent work has applied PAA to fossils and their source matrices in an attempt to correlate provenance through trace element analysis. PAA was shown to be non-consumptive and able to identify 20+ elements in samples with sub-ppm sensitivities. From that work, several lessons were learned and the non-destructivity of the technique was better characterized. PAA doesn’t have one standardized methodology, as it varies depending on the sample type. As such, from the lessons learned from the previous research, a standard method of applying PAA non-destructively to paleontological samples has been developed and will be presented in the following paper.

scholarly journals OPTO-TECHNICAL MONITORING – A STANDARDIZED METHODOLOGY TO ASSESS THE TREATMENT OF HISTORICAL STONE SURFACES

2018 ◽  
Vol XLII-2 ◽  
pp. 945-952
Author(s):  
M. Rahrig ◽  
R. Drewello ◽  
A. Lazzeri
Keyword(s):  
Near Field ◽  
Three Dimensional ◽  
Non Destructive Testing ◽  
New Materials ◽  
Testing Methods ◽  
Destructive Testing ◽  
Monitoring Method ◽  
Horizon 2020 ◽  
Research And Innovation ◽  
Non Destructive

Monitoring is an essential requirement for the planning, assessment and evaluation of conservation measures. It should be based on a standardized and reproducible observation of the historical surface. For many areas and materials suitable methods for long-term monitoring already exist. But hardly any non-destructive testing methods have been used to test new materials for conservation of damaged stone surfaces. The Nano-Cathedral project, funded by the European Union's Horizon 2020 research and innovation program, is developing new materials and technologies for preserving damaged stone surfaces of built heritage. The prototypes developed are adjusted to the needs and problems of a total of six major cultural monuments in Europe. In addition to the testing of the materials under controlled laboratory conditions, the products have been applied to trial areas on the original stone surfaces. For a location-independent standardized assessment of surface changes of the entire trial areas a monitoring method based on opto-technical, non-contact and non-destructive testing methods has been developed. This method involves a three-dimensional measurement of the surface topography using Structured-Light-Scanning and the analysis of the surfaces in different light ranges using high resolution VIS photography, as well as UV-A-fluorescence photography and reflected near-field IR photography.<br> The paper will show the workflow of this methodology, including a detailed description of the equipment used data processing and the advantages for monitoring highly valuable stone surfaces. Alongside the theoretical discussion, the results of two measuring campaigns on trial areas of the Nano-Cathedral project will be shown.

scholarly journals EDXRF study of Tupi-Guarani archaeological ceramics.

2003 ◽  
pp. 199 ◽  
Author(s):  
Fernando R. Espinoza Quiñones ◽  
Carlos R. Appoloni ◽  
Adenilson O. dos Santos ◽  
Luzeli M. da Silva ◽  
Paulo F. Barbieri ◽  
...  
Keyword(s):  
Compositional Data ◽  
Physical Characteristics ◽  
Intensity Data ◽  
Archaeological Ceramics ◽  
X Ray ◽  
Xrf Analysis ◽  
The North ◽  
Ceramic Paste ◽  
Representation Method ◽  
Non Destructive

A set of indian Brazilian pottery fragments belonging to Tupi-Guarani tradition has been studied by an archaeometric non-destructive technique. The pottery fragments were accidentally discovered in the Santa Dalmacia farm, sited near Cambé city at the north of Paraná Brazilian state. Each one of these fragments came from different ceramic recipients and their physical characteristics are very similar. The EDXRF measurements were performed employing both an X-ray tube and three radioisotope sources (Fe, Cd and Pu). The compositional data of the ceramics paste and pigments is investigated. For detection of the elements within the ceramic paste, the fragments were irradiated at the center of the lateral section, while several superficial areas with remaining plastic decoration were also chosen and irradiated at the convex and concave sides of each fragment. A paste-subtracted compositional data of the remaining pigments was statically extracted from the XRF analysis of each area. A program based on the graphic polygonal representation method was developed and used to correlate the representative intensity data of each fragment.

scholarly journals WSMS: Wearable Stress Monitoring System based on IoT Multi-Sensor Platform for Living Sheep Transportation

Electronics ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 441 ◽  
Author(s):  
Cui ◽  
Zhang ◽  
Li ◽  
Luo ◽  
Zhang ◽  
...  
Keyword(s):  
Monitoring System ◽  
Stress Monitoring ◽  
Monitoring Method ◽  
Inertial Measurement ◽  
Non Invasive ◽  
Sensing Platform ◽  
Sensor Platform ◽  
Measurement Units ◽  
Infrared Temperature Measurement ◽  
Non Destructive

Farming herdsmen, sheep dealers, and veterinarians are increasingly interested in continuously monitoring sheep basic physiological characteristics (such as the heart rate and skin temperature) outside the laboratory environment, with the aim of identifying the physiological links between stress, uncomfortable, excitement, and other pathological states. This paper proposes a non-invasive Wearable Stress Monitoring System (WSMS) with PhotoPlethysmoGram (PPG), Infrared Temperature Measurement (ITM), and Inertial Measurement Units (IMU) that aimed to remotely and continuously monitor the stress signs of sheep during transportation. The purpose of this study was implemented by following the multi-dimensional sensing platform to identify more pressure information. The designed WSMS showed sufficient robustness in recording and transmitting sensing data of physiology and environment during transport. The non-contact and non-destructive monitoring method that was proposed in this paper was helpful in minimizing the effects of sheep stress load.

scholarly journals Non-Destructive Identification of Spherical Inclusions

2000 ◽  
Vol 9 (1) ◽  
pp. 096369350000900
Author(s):  
Maria Hadjinicolaou
Keyword(s):  
Density Ratio ◽  
Low Frequency ◽  
Physical Characteristics ◽  
Physical Parameters ◽  
Wave Excitation ◽  
The Core ◽  
Spherical Inclusions ◽  
Coated Spheres ◽  
Non Destructive ◽  
Fundamental Units

Small coated particles and especially small coated spheres, are fundamental units in a particular class of composite materials. The physical characteristics of the core of a particle can be identified through low frequency inverse scattering techniques, in a completely non-destructive manner. Using point source, as well as, plane wave excitation, it can be identified whether the core is consisted of an acoustically soft, hard, or resistive kernel, or if it is a penetrable body having different physical characteristics from that of the coating material. Furthermore, the thickness of the shell can be evaluated assuming the physical parameters (two different densities of the two spheres) are known. Otherwise, if the thickness of the shell is known, the density ratio of the two media can be obtained from one single measurement. Consequently, the density of the core can be found when the density of the shell is known and vice versa.

scholarly journals Applied Research of the Hygrothermal Behaviour of an Internally Insulated Historic Wall without Vapour Barrier: In Situ Measurements and Dynamic Simulations

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3362 ◽  
Author(s):  
Mirco Andreotti ◽  
Dario Bottino-Leone ◽  
Marta Calzolari ◽  
Pietromaria Davoli ◽  
Luisa Dias Pereira ◽  
...  
Keyword(s):  
Frost Damage ◽  
Masonry Wall ◽  
Insulation Material ◽  
Dynamic Simulations ◽  
Monitoring Method ◽  
Hygrothermal Simulation ◽  
U Value ◽  
Non Destructive ◽  
Hygrothermal Behaviour

The hygrothermal behaviour of an internally insulated historic wall is still hard to predict, mainly because the physical characteristics of the materials composing the historic wall are unknown. In this study, the hygrothermal assessment of an internally thermal insulated masonry wall of an historic palace located in Ferrara, in Italy, is shown. In situ non-destructive monitoring method is combined with a hygrothermal simulation tool, aiming to better analyse and discuss future refurbishment scenarios. In this context, the original U-value of the wall (not refurbished) is decreased from 1.44 W/m2K to 0.26 W/m2K (10 cm stone wool). Under the site specific conditions of this wall, not reached by the sun or rain, it was verified that even in the absence of vapour barrier, no frost damage is likely to occur and the condensation risk is very limited. Authors proposed further discussion based on simulation. The results showed that the introduction of a second gypsum board to the studied technology compensated such absence, while the reduction of the insulation material thickness provides a reduction of RH peaks in the interstitial area by 1%; this second solution proved to be more efficient, providing a 3% RH reduction and the avoidance of further thermal losses.

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

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.

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

1975 ◽  
Vol 33 ◽  
pp. 678-679 ◽  
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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