Effect of low‐temperature vacuum heating on physicochemical properties of sturgeon ( Acipenser gueldenstaedti ) fillets

2020 ◽  
Vol 100 (12) ◽  
pp. 4583-4591 ◽  
Author(s):  
Wen‐qiang Cai ◽  
Jian‐ling Wei ◽  
Yue‐wen Chen ◽  
Xiu‐ping Dong ◽  
Jing‐na Zhang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Physicochemical Properties ◽  
Vacuum Heating ◽  
Acipenser Gueldenstaedti

scholarly journals Structure and Physicochemical Properties of Water Treated under Methane with Low-Temperature Glow Plasma of Low Frequency

Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1638 ◽  
Author(s):  
Aleksandra Ciesielska ◽  
Wojciech Ciesielski ◽  
Karen Khachatryan ◽  
Henryk Koloczek ◽  
Damian Kulawik ◽  
...  
Keyword(s):  
Low Temperature ◽  
Physicochemical Properties ◽  
Treatment Time ◽  
Low Frequency ◽  
Aqueous Solubility ◽  
Physicochemical Characteristics ◽  
Scanning Calorimetry ◽  
Spin Resonance ◽  
Reflectance Ftir ◽  
Glow Plasma

Our former studies delivered a strong evidence that water indirectly treated with low-temperature, low-pressure glow plasma of low frequency (GP) changed its structure depending on the atmosphere in which such treatment was performed (air, ammonia, and nitrogen) and on the time of the treatment (0 to 120 min). In every case, water of different physicochemical characteristics and interesting biological functions was produced. Therefore, the relevant studies were extended to treating deionized water with GP under methane. The resulting samples were characterized by means of ultraviolet/visible (UV/VIS), Fourier transformation infrared-attenuated total reflectance (FTIR-ATR), electron spin resonance (ESR) and Raman spectroscopies, differential scanning calorimetry (DSC), thermogravimetry, pH, conductivity, and refractive index. The generated samples of water had entirely different physicochemical properties from those recorded for water treated with GP in the air and under both ammonia and nitrogen. The treatment of water with GP under methane did not produce clathrates hosting methane molecules. Thermogravimetry delivered an evidence that the treatment with GP increased the aqueous solubility of methane. That solubility non-linearly changed against the treatment time.

scholarly journals Physicochemical Properties of Circulating Red Blood Cells of Lethally X-irradiated Mice Treated with Rat Bone Marrow

Blood ◽  
1957 ◽  
Vol 12 (11) ◽  
pp. 984-992 ◽  
Author(s):  
TAKASHI MAKINODAN ◽  
NORMAN G. ANDERSON
Keyword(s):  
Bone Marrow ◽  
Low Temperature ◽  
Physicochemical Properties ◽  
Blood Cells ◽  
Hemoglobin Concentration ◽  
Temperature Dependency ◽  
Molecular Configuration ◽  
Electrophoretic Property ◽  
Osmotic Properties ◽  
Rat Bone

Abstract 1. Two months after injection of rat bone marrow into lethally X-irradiated mice (950 r-RBM mice), 100% of the circulating RBC were serologically of the rat type, indicating that the surface molecular configuration of RBC from these experimental mice are of the rat type. 2. The hemoglobin was found to be also very much like the rat type in its ease in crystallization, its alkali denaturation property, its electrophoretic property, and its tendency to form a paracrystalline state at low temperature. 3. These cells possessed dual osmotic properties; the relative hemoglobin concentration released when cells were lysed in water was more comparable to the rat type, but its temperature dependency was more comparable to the mouse type.

scholarly journals The Influence of Ce or Mn Doping on Cu-Based Catalysts for De-NOx with NH3-SCR

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Lei Jiang ◽  
Yixi Cai ◽  
Miaomiao Jin ◽  
Zengzan Zhu ◽  
Yinhuan Wang
Keyword(s):  
Low Temperature ◽  
Physicochemical Properties ◽  
Topological Structure ◽  
Zeolite Catalysts ◽  
Incipient Wetness Impregnation ◽  
Impregnation Method ◽  
Performance Tests ◽  
Nh3 Scr ◽  
Temperature Window ◽  
Different Doses

In this study, the de-NOx performance of Cu-based zeolite catalysts supported on topological structure (SSZ-13, BEA, ZSM-5) and loaded with different doses of copper (from 2 to 6 wt.%) was investigated. The preparation of copper-based catalysts adopted the incipient wetness impregnation method. To analyze the physicochemical properties of the catalysts, advanced techniques like BET, XRD, NH3-TPD, H2-TPR, and DRS UV-Vis were used. The performance tests suggested the 4Cu/SSZ-13 catalyst exhibited higher low-temperature activity and wider temperature window. Furthermore, compared with Mn-Cu/SSZ-13, the Ce-Cu/SSZ-13 catalysts exhibited better de-NOx performance.

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