TECHNOLOGY FOR PRODUCING LIQUID EXTRACT FROM THE PLANTS OF RHUS (RHUS TYPHINA L)

2021 ◽  
pp. 87-90
Author(s):  
Г.Б. Әбілжан ◽  
Қ.Қ. Қожанова ◽  
С.Е. Момбеков
Keyword(s):  
Ethyl Alcohol ◽  
Optimal Method ◽  
Percolation Method ◽  
Liquid Extract ◽  
Rhus Typhina

В данной статье предусмотрен технология получения жидкого экстракта из растений сумаха пушистого (rhus typhina l.). Для получения жидкого экстракта в качестве экстрагента использовали 70% этиловый спирт. В качестве эффективного и оптимального метода был использован метод перколяции. This article provides a technology for producing a liquid extract from the plants of rhus (rhus typhina l). To obtain a liquid extract, 70% ethyl alcohol was used as an extractant. The percolation method was used as an effective and optimal method.

scholarly journals Import-Substituting Food Additive E316 (Sodium Isoascorbate): Production Patterns

2019 ◽  
Vol 48 (4) ◽  
pp. 39-47
Author(s):  
Михаил Кукин ◽  
Mikhail Kukin
Keyword(s):  
Sodium Hydroxide ◽  
Ethyl Alcohol ◽  
Mass Fraction ◽  
Sodium Hydroxide Solution ◽  
Import Substitution ◽  
Oxidative Degradation ◽  
Temperature Limit ◽  
Target Product ◽  
Optimal Method ◽  
Isoascorbic Acid

Sodium isoascorbate is one of the most popular antioxidants in food industry. Russia imports it from abroad. Thus, import substitution requires a thorough research into the patterns of isoascorbate technology production and development. The mass fraction of the main substance in the solution and crystals of the target product was determined by iodometric titration. It was established that the rate of oxidative degradation of sodium isoascorbate solutions is from 0.01%/h at 25°C to 0.80%/h at 82°C, depending on the temperature and duration of the process, as well as contact with metal and oxygen of the air. The experiment substantiated the choice of metal equipment and the temperature limit of 60°C. The equivalent pH values during the interaction of isoascorbic acid solutions with sodium hydroxide, carbonate, and sodium bicarbonate solutions were 7.5, 7.0, and 5.6, respectively. The author also defined the influence of equilibrium concentrations of aqueous solutions of isoascorbic acid and sodium isoascorbate on temperature. The optimal method was to add a solution of sodium hydroxide into a solution of isoascorbic acid with a ratio between the masses of sodium hydroxide solution, crystalline isoascorbic acid, and prepared water, respectively, 1:2.11:6.13. The solution obtained at such ratios had a supersaturation coefficient of 1.05 at a temperature of 60°C. The experiment revealed the time required to establish equilibrium in the crystallizing system and the dependence of the solubility of sodium isoasorbate on the mass fraction of ethyl alcohol in solution. It was proposed to separate the target product from the solution by isohydric crystallization followed by isothermal crystallization, followed by washing the crystals with ethyl alcohol. According to the proposed technology, sodium isoascorbate was obtained with a mass fraction of the basic substance of at least 99.0%. The obtained data can be used in the development of industrial technology for the production of sodium isoascorbate.

The butterfly martensite nucleation in an iron and nickel alloy

1990 ◽  
Vol 48 (4) ◽  
pp. 906-907
Author(s):  
Q.Z. Chen ◽  
X.F. Wu ◽  
T. Ko
Keyword(s):  
Nickel Alloy ◽  
Ethyl Alcohol ◽  
Dislocation Structure ◽  
Martensite Transformation ◽  
Room Temperature ◽  
The Matrix

Some butterfly martensite nuclei were observed in an Fe-27.6Ni-0.89V-0.05C alloy. The alloy was austenitized at 1200°C for 1 hour. Some samples were aged at 850° C for 40 minutes and quenched in 10% brine at room temperature. All the samples were cooled in ethyl alcohol for martensite transformation.A nucleus in an unaged specimen is shown in Fig.1. The nucleus has certain contrast different from the matrix and is shaped like one wing of a butter fly martensite. The SADP of the circled region is measured to be: da=dh, and approximate to dγ(111) and dm(110) with ∠AOB = 55° . It is similar to [011]f.c.c and b patterns in the anglez ∠AOB and the ratio ra/rb, respectively. The SADP shows that the structure of the nucleus is between f.c.c and b.c.c. The dislocation structure within the nucleus is shown in Fig.2. Their Burgers vectors and line directions are also given in it. There are many long dislocations near it without dislocations piled up as shown in Fig.3.Long dislocations are closed at one end as an envelope.

Optimal design of a high homogeneous and small-size shim coil for atomic spin gyroscope based on 0-1 linear programming

2020 ◽  
Vol 64 (1-4) ◽  
pp. 165-172
Author(s):  
Dongge Deng ◽  
Mingzhi Zhu ◽  
Qiang Shu ◽  
Baoxu Wang ◽  
Fei Yang
Keyword(s):  
Linear Programming ◽  
Power Consumption ◽  
Low Power ◽  
Optimization Design ◽  
Structural Parameters ◽  
Axial Position ◽  
Low Power Consumption ◽  
Optimal Method ◽  
Atomic Spin ◽  
Shim Coil

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.

Optimal method of reconstruction in patients with pathology of the 1st segment of the subclavian artery

2020 ◽  
Vol 26 (2) ◽  
pp. 133
Author(s):  
A. N. Vachev ◽  
O. V. Dmitriev ◽  
E. A. Golovin ◽  
M. Iu. Stepanov
Keyword(s):  
Subclavian Artery ◽  
Optimal Method

Effects of Ethyl Alcohol on Retention in a Delayed-Response Test

1965 ◽  
Vol 26 (3) ◽  
pp. 384-392 ◽  
Author(s):  
Elizabeth K. Van Laer ◽  
Murray E. Jarvik ◽  
John Van Laer
Keyword(s):  
Ethyl Alcohol ◽  
Delayed Response ◽  
Response Test
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