Distinguishing cotton seed genotypes by means of vibrational spectroscopic methods (NIR and Raman) and chemometrics

Author(s):  
Mayara Macedo da Mata ◽  
Priscila Dantas Rocha ◽  
Ingrid Kelly Teles de Farias ◽  
Juliana Lima Brasil da Silva ◽  
Everaldo Paulo Medeiros: ◽  
...  
1880 ◽  
Vol 10 (243supp) ◽  
pp. 3874-3874
Author(s):  
Benjamin Nickels

Planta Medica ◽  
2015 ◽  
Vol 81 (05) ◽  
Author(s):  
V Shulaev ◽  
MD Jones ◽  
D Sturtevant ◽  
PJ Horn ◽  
J Crossley ◽  
...  

2003 ◽  
Vol 775 ◽  
Author(s):  
Sung-Hwa Oh ◽  
Ju-Myung Song ◽  
Joon-Seop Kim ◽  
Hyang-Rim Oh ◽  
Jeong-A Yu

AbstractSolution behaviors of poly(styrene-co-sodium methacrylate) were studied by fluorescence spectroscopic methods using pyrene as a probe. The mol% of methacrylate was in the range 3.6–9.4. Water and N,N-dimethylforamide(DMF) mixture was used as a solvent (DMF/water = 0.2 mol %). The critical micelle (or aggregation) concentrations of ionomers and the partition coefficients of pyrene were obtained the temperature range 10–80°C. At room temperature, the values of CMCs (or CACs) were in the range 4.7 ×10-6 5.3 ×10-6 g/mL and we could not find any notable effect of the content of ionic repeat units within the experimental errors. Unlike CMCs, as the ion content increased, partitioning of pyrene between the hydrophobic aggregates and an aqueous media decreased from 1.5 ×105 to 9.4 ×104. As the temperature increased from 10 to 80 °C, the values of CMCs increased less than one order of magnitude. While, the partition coefficients of pyrene decreased one order of magnitude and the effect of the ion content became negligible.


2019 ◽  
Vol 29 (2) ◽  
pp. 189 ◽  
Author(s):  
Tho Truong Nguyen ◽  
Thi Minh Cao ◽  
Hieu Van Le ◽  
Viet Van Pham

The black TiO\(_2\) with substantial Ti\(^3+\) and oxygen vacancies exhibit an excellent photoelectrochemical water-splitting performance due to the improved charge transport the extended visible light response. In this study, black TiO\(_2\) nanotube arrays synthesized by the anodization method, and then, they have been investigated some characterizations by spectroscopic methods such as UV-visible reflectance (UV-vis DRS), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, and photoluminescence spectrum. The results showed that some highlighted properties of the black TiO2 nanotube arrays and they could apply for water-splitting effect.


Author(s):  
L.A. Magadova ◽  
◽  
K.A. Poteshkina ◽  
M.M. Muchin ◽  
M.A. Silin ◽  
...  

2014 ◽  
pp. 87-92
Author(s):  
Thi Hoai Nguyen ◽  
Thi Van Thi Tran ◽  
Trung Hieu Le ◽  
Thi Mai Huong Vo

Background: There are many beneficial effects such as reducing the risk of obesity, diabetes, hyperlipidemia and hypercholesterolemia from Amorphophallus sp. This reports are research results of physicochemical properties of glucomannan flour from tubers of Amorphophallus paeoniifolius cultivated in Thua Thien Hue. Materials: Glucomannan flour from tubers of Amorphophallus paeoniifolius (Dennst) Nicolson – Araceae cultivated in Thua Thien Hue. Method: Identify the quantity and physicochemical properties by many methods such as using enzymes, chemistry, physical chemistry, spectroscopic methods, laser analysis. Results: Identified starch and glucomannan quantity, physicochemical properties and indicators of microbiological of glucomannan flour. Conclusion: From the achieved results set up quality standards of glucomannan flour from tubers of Amorphophallus paeoniifolius cultivated in Thua Thien Hue. Key words: Glucomannan, starch, β-amylase.


2019 ◽  
Vol 70 (8) ◽  
pp. 2747-2752
Author(s):  
Constantin Marutoiu ◽  
Ioan Bratu ◽  
Mircea Gelu Buta ◽  
Olivia Florena Nemes ◽  
Sergiu Petru Timbus(Monk Siluan) ◽  
...  

A two-sided wooden icon from a monastery in Transylvania was submitted for multidisciplinary investigations involving X-Ray Fluorescence, Radiographic Photographyand Fourier Transform Infrared Spectroscopy. The most important part of the icon is St. Nicholas wooden icon, painted over forty years ago. The spectroscopic methods used revealed the painting materials composition, the status of the wooden stage, and the presence of resins as varnish (Fourier Transform Infrared Spectroscopy). On one side, the St Nicholasicon was painted over an old icon, St. Arch. Michael, which was evidenced by X-Ray Photography. The obtained data can serve for the preservation and the restoration of these wooden icons.


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