scholarly journals Recent Development of the XANES Spectral Analysis Methods for the Structure Characterization of Metal Complexes in Solution

2008 ◽  
Vol 24 (11) ◽  
pp. 1385-1392 ◽  
Author(s):  
Tsutomu KURISAKI ◽  
Shuji MATSUO ◽  
Imre TÓTH ◽  
Hisanobu WAKITA
Keyword(s):  
Spectral Analysis ◽  
Metal Complexes ◽  
Structure Characterization ◽  
Analysis Methods

Characterization of Asphalt Pavement Surface Texture

2012 ◽  
Vol 2295 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Timothy Miller ◽  
Daniel Swiertz ◽  
Laith Tashman ◽  
Nader Tabatabaee ◽  
Hussain U. Bahia
Keyword(s):  
Spectral Analysis ◽  
Surface Texture ◽  
Asphalt Pavement ◽  
Friction Characteristics ◽  
Frictional Properties ◽  
Pavement Surface ◽  
Analysis Methods ◽  
Texture Parameters ◽  
Laser Profiling

This paper presents improved analysis methods for characterizing asphalt pavement surface texture and focuses on the use of laser profiling techniques to estimate friction characteristics. Derived from signal processing theories, texture spectral analysis methods show promise for improving characterization of the tire–pavement interface. Texture parameters measured with spectral analysis techniques represent a means for quantifying surface properties. Current methods to analyze frictional properties rely on the mean profile depth (MPD) and mean texture depth (MTD) texture parameters. Although these parameters are used widely, they do not capture the range and distribution of surface asperities on the pavement surface. Knowing the distribution of surface asperities is critical for assessing friction characteristics. Thus, texture spectral analysis methods are anticipated to improve on the MPD and MTD parameters by capturing relevant texture-level distributions. This study investigates the applicability of laser profiling systems for measuring pavement surface texture and subsequent relationships to friction. Models accounting for aggregate and mixture properties are developed and related to texture parameters through analysis of constructed field sections and corresponding laboratory samples. Results indicate that stationary laser profiling systems can capture the microtexture and macrotexture spectrum and suggest that a comprehensive friction characterization of asphalt mixtures can be obtained in a laboratory setting. With this analysis system, it is believed that asphalt mixture designers will have an improved tool by which to estimate pavement surface texture and frictional properties.

scholarly journals Ureido Derivatives of Neoabietic Acid

Molbank ◽  
10.3390/m1033 ◽  
2018 ◽  
Vol 2018 (4) ◽  
pp. M1033
Author(s):  
Xinyu Gao ◽  
Niping Feng ◽  
Yuhan Zi ◽  
Jianguo Cao ◽  
Guozheng Huang
Keyword(s):  
Spectral Analysis ◽  
1H Nmr ◽  
13C Nmr ◽  
Structure Characterization ◽  
Curtius Rearrangement ◽  
Neoabietic Acid ◽  
Rearrangement Reaction ◽  
Derivatives Of

A series of ureido derivatives of neoabietic acid were synthesized by application of Curtius rearrangement reaction to neoabietic acid and amines. Structure characterization of these compounds was done by 1H-NMR, 13C-NMR and HRMS spectral analysis.

Color spectral analysis for spatial structure characterization of textures in IHLS color space

2010 ◽  
Vol 43 (3) ◽  
pp. 663-675 ◽  
Author(s):  
Imtnan-Ul-Haque Qazi ◽  
Olivier Alata ◽  
Jean-Christophe Burie ◽  
Christine Fernandez-Maloigne
Keyword(s):  
Spectral Analysis ◽  
Spatial Structure ◽  
Color Space ◽  
Structure Characterization

scholarly journals 3-(3,5-Difluorophenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde

Molbank ◽  
10.3390/m1011 ◽  
2018 ◽  
Vol 2018 (3) ◽  
pp. M1011 ◽  
Author(s):  
Naveen Kumar ◽  
Swamy Sreenivasa ◽  
Vasantha Kumar ◽  
Nadigar Mohan
Keyword(s):  
Spectral Analysis ◽  
1H Nmr ◽  
13C Nmr ◽  
High Purity ◽  
Title Compound ◽  
Good Yield ◽  
Phosphorus Oxychloride ◽  
Structure Characterization ◽  
Dimethyl Formamide

Vilsmeier–Haack reaction of (E)-1-[1-(3,5-difluorophenyl)ethylidene]-2-phenylhydrazine (1) using dimethyl formamide in excess of phosphorus oxychloride by conventional method, resulted in the synthesis of the title compound 3-(3,5-difluorophenyl)-1-phenyl-1H-pyrazole-4- carbaldehyde (2) in good yield and high purity. Structure characterization of the title compound was done by IR, 1H-NMR, 13C-NMR and HRMS spectral analysis.

scholarly journals 1-Methyl-3-{4-[(4-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)piperidin-1-yl)benzyl]}-2-phenylindole

Molbank ◽  
10.3390/m1023 ◽  
2018 ◽  
Vol 2018 (4) ◽  
pp. M1023 ◽  
Author(s):  
Jean Guillon ◽  
Solène Savrimoutou ◽  
Sandra Rubio ◽  
Vanessa Desplat
Keyword(s):  
Spectral Analysis ◽  
Cell Lines ◽  
13C Nmr ◽  
Title Compound ◽  
Indole Derivative ◽  
Leukemia Cell ◽  
Structure Characterization ◽  
Cytotoxic Potential ◽  
Leukemia Cell Lines

The 1-methyl-3-{4-[(4-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)piperidin-1-yl)benzyl]}-2-phenylindole compound has been successfully synthesized via a multistep pathway starting from 2-phenylindole. Structure characterization of this new indole derivative was done by FTIR, 1H-NMR, 13C-NMR, and HRMS spectral analysis. The title compound showed high cytotoxic potential against five leukemia cell lines (K562, HL60, U937, U266, and Jurkat cell lines).

scholarly journals 3-(3,5-Difluorophenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde

2018 ◽  
Author(s):  
Naveen Kumar ◽  
Swamy Sreenivasa ◽  
Vasantha Kumar ◽  
Nadigar Revansiddappa Mohan
Keyword(s):  
Spectral Analysis ◽  
13C Nmr ◽  
Title Compound ◽  
Structure Characterization ◽  
Dimethyl Formamide ◽  
The Novel ◽  
Mass Spectral Analysis ◽  
Mass Spectral ◽  
Phosphorous Oxychloride

Vilsmeier–Haack reaction of (E)-1-(1-(3,5-difluorophenyl)ethylidene)-2-phenylhydrazine (1) using dimethyl formamide in excess of phosphorous oxychloride by conventional method, resulted in the synthesis of title compound 3-(3,5-difluorophenyl)-1-phenyl-1H-pyrazole-4- carbaldehyde (2) in good yield and high purity. Structure characterization of the novel title compound was done by IR, 1H NMR, 13C NMR and mass spectral analysis.

Characterization of microwave-sintered ceramic composites

1993 ◽  
Vol 51 ◽  
pp. 1136-1137
Author(s):  
X. Zhang ◽  
Y. Pan ◽  
T.T. Meek
Keyword(s):  
Matrix Material ◽  
Maximum Output Power ◽  
Ceramic Matrix Composite ◽  
Ceramic Composites ◽  
Processing Technique ◽  
Structure Characterization ◽  
Alumina Powder ◽  
Maximum Output ◽  
Sintered Ceramic

Industrial microwave heating technology has emerged as a new ceramic processing technique. The unique advantages of fast sintering, high density, and improved materials properties makes it superior in certain respects to other processing methods. This work presents the structure characterization of a microwave sintered ceramic matrix composite.Commercial α-alumina powder A-16 (Alcoa) is chosen as the matrix material, β-silicon carbide whiskers (Third Millennium Technologies, Inc.) are used as the reinforcing element. The green samples consisted of 90 vol% Al2O3 powder and 10 vol% ultrasonically-dispersed SiC whiskers. The powder mixture is blended together, and then uniaxially pressed into a cylindrical pellet under a pressure of 230 MPa, which yields a 52% green density. The sintering experiments are carried out using an industry microwave system (Gober, Model S6F) which generates microwave radiation at 2.45 GHz with a maximum output power of 6 kW. The composites are sintered at two different temperatures (1550°C and 1650°C) with various isothermal processing time intervals ranging from 10 to 20 min.

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