From Incident Light to Persistent and Regenerable Radicals of Urea-Assembled Benzophenone Frameworks: A Structural Investigation

As part of a program to develop iron particles for next generation recording disk medium, their structural properties were investigated using transmission electron microscopy and electron diffraction. Iron particles are a more desirable recording medium than iron oxide, the most widely used material in disk manufacturing, because they offer a higher magnetic output and a higher coercive force. The particles were prepared by a method described elsewhere. Because of their strong magnetic interaction, a method had to be developed to separate the particles on the electron microscope grids.

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Pyrolysis of a polyvinylsilazane, polymeric precursor for silicon carbonitride : structural investigation by 1H, 13C, 29Si, 15N and 14N nuclear magnetic resonance

Journal de Chimie Physique ◽

10.1051/jcp/1992890461 ◽

1992 ◽

Vol 89 ◽

pp. 461-467 ◽

Cited By ~ 10

Author(s):

C Gerardin ◽

F Taulelle ◽

J Livage

Keyword(s):

Nuclear Magnetic Resonance ◽

Magnetic Resonance ◽

Structural Investigation ◽

Silicon Carbonitride ◽

Polymeric Precursor ◽

Nuclear Magnetic

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Full-parallax 3D display using time-multiplexing projection technology

Electronic Imaging ◽

10.2352/issn.2470-1173.2020.2.sda-100 ◽

2020 ◽

Vol 2020 (2) ◽

pp. 100-1-100-6

Author(s):

Takuya Omura ◽

Hayato Watanabe ◽

Naoto Okaichi ◽

Hisayuki Sasaki ◽

Masahiro Kawakita

Keyword(s):

Incident Light ◽

Polarization State ◽

3D Image ◽

3D Display ◽

Time Division Multiplexing ◽

3D Images ◽

Polarization Gratings ◽

Light Rays ◽

Time Division

We enhanced the resolution characteristics of a threedimensional (3D) image using time-division multiplexing methods in a full-parallax multi-view 3D display. A time-division light-ray shifting (TDLS) method is proposed that uses two polarization gratings (PGs). As PG changes the diffraction direction of light rays according to the polarization state of the incident light, this method can shift light rays approximately 7 mm in a diagonal direction by switching the polarization state of incident light and adjusting the distance between the PGs. We verified the effect on the characteristics of 3D images based on the extent of the shift. As a result, the resolution of a 3D image with depth is improved by shifting half a pitch of a multi-view image using the TDLS method, and the resolution of the image displayed near the screen is improved by shifting half a pixel of each viewpoint image with a wobbling method. These methods can easily enhance 3D characteristics with a small number of projectors.

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Structural investigation of some native biodegradable packaging materials

Studia Universitatis Babeș-Bolyai Ambientum ◽

10.24193/subbambientum.2017.2.02 ◽

2017 ◽

Vol 62 (2) ◽

pp. 19-28

Author(s):

Onuc Cozar ◽

◽

Nicolae Cioica ◽

Elena Mihaela Nagy ◽

Constantin Coţa ◽

...

Keyword(s):

Structural Investigation ◽

Packaging Materials ◽

Biodegradable Packaging

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Effect of the structural changes on the mechanical properties of the sintered films

JOURNAL OF ADVANCES IN PHYSICS ◽

10.24297/jap.v12i1.168 ◽

2016 ◽

Vol 12 (1) ◽

pp. 4141-4144

Author(s):

Garima Jain

Keyword(s):

Crystallite Size ◽

Lattice Constant ◽

Structural Changes ◽

Structural Investigation ◽

Energy Gap ◽

Lattice Parameter ◽

Metal Chalcogenides ◽

Optical Energy Gap ◽

Tin Telluride ◽

Physical Quantities

Polycrystalline films of tin telluride were prepared by sintering technique. The structural investigation of the films with different thicknesses enables to determine lattice parameter, crystallite size and strain existing in the films. The XRD traces showed that strain was tensile in nature. The crystallite size increases with thickness while strain decreases. Higher the value of tensile strain, larger is the lattice constant. The optical energy gap shows a descending nature with increasing strain and so with the lattice constant. Such an attempt made to delve into interdependence of basic physical quantities helps to explore the properties of SnTe and utilize it as an alternative to heavy metal chalcogenides in various technological applications. Â

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COLOUR FILTERS APPLICATION FOR DIAGNOSTICS SOME PATHOLOGICAL PROCESS

Vestnik of the Russian agricultural science ◽

10.30850/vrsn/2018/3/44-49 ◽

1970 ◽

pp. 44-49

Author(s):

A. G. Belova ◽

E. V. Zimina ◽

N. P. Simbirtsev

Keyword(s):

Visual Analysis ◽

Color Change ◽

Incident Light ◽

Venous Blood ◽

Subjective Assessment ◽

Pathological Process ◽

Dark Spot ◽

High Reflectivity ◽

Arterial Blood ◽

Green Background

During a pathoanatomic autopsy, it is very important to correctly assess the color change of the organs. However, it is not always clear because the color depends on the spectrum of the incident light. There is also a subjective assessment of color. In addition, in animals with large amounts of circulating blood, for example, dogs, early imbibition occurs, which makes it difficult to assess the color of the organ and pathoanatomical diagnosis. We have proposed a simple and visual method of recognition of two pathological processes – inflammation and edema using colored filters. This technique also allows to accurately differentiate inflammation from postmortem imbibition, to recognize fibrin and hemorrhage well. Postmortem examination of different types of animals (predacious families of mustelids, canids, felids) was performed in accordance with Shore’s method in the prosectorium of the Pathonomy Department, K.I. Skryabin Moscow State Academy of Veterinary Medicine and Biotechnology visual analysis – under various artificial lights (fluorescent lamps with banded spectrum and halogen lamps). In the red filter are well identified the pathological processes associated with the venous blood presence in the tissues (venous hyperemia and pulmonary edema). The focus of venous hyperemia or edema in the red filter looks like a dark zone, and tissues, where arterial bloods predominated, aren’t detected in red filter. In the yellow – green filter the inflammation is clearly detected: the zone is brightly red and surrounding tissues become dark. Red colour filters have rather narrow band of transmittance from 600 to 700 nm. Yellow-green have a width zone – from 500 to 700 nm, including both red, and yellow-green part of spectrum. Oxidized hemoglobin in red part of spectrum absorbs ten time weaker, has more high reflectivity and looks red. Surrounding tissues reflect the red rays, which incident on them also red. Therefore, the zone of edema, venous hyperemia and hemorrhaging, containing venous blood, are detected the dark spot, and inflammation zone merges with the red background. Oxidized hemoglobin in the red spectrum part absorbs ten time weaker than reduced hemoglobin, has high reflectivity of the red spectrum part and looks brightly red, surrounding tissues reflect yellow-green spectrum part and look green. Therefore, the zones of inflammation, active hyperemia and hemorrhaging, containing arterial blood, sharp contrast with green background and are clearly visible. Diagnoses made with the help of color filters are confirmed by histological studies.

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