Through orthogonal experiment, the best extraction technological condition of persimmon carotenoids was: acetone as extraction solvent, solid-to-liquid ratio 1:20 g/mL , at 60 ℃ for 2.5 h and extracted twice.
In this paper,the technological condition of γ-Fe_2O_3 magnetic powder of surrounding co-balt type is investigated by the orthogonal experiment. CoFe-γ-Fe_2O_3 magnetic powder is ob-tained at IIc>700 oe.
The paper has reported the operation process of extracting Sarcandra glabra(Thunb)Nakai with CO2-SFE. and the best technological condition obtained on the two methods: CO2-SFE and CO2-SFE-Ethanol(as reagent smuggled).
Chitin was isolated from tachypleus tridentatus and its best technological condition was worked out. The tachypleus tridentatus shell was flushed soaked with 1 mol/L hydrochloric acid with water untill neutral. Then it was soaked with 2 mol/L sodium and hydroxide 1 mol/L hydrochloric acid, finally reacted for 3 hours with 2 mol/L sodium hydroxide at 80 °C .
In this paper, load type catalyst CuO/γ-Al2O3 was prepared by soakage. The technical conditions such as concentration of the soakage solution, soakage time, calcination temperature, calcination time, etc were optimized, and the optimum conditions was determined as follows: concentration of CuSO4 is 6%,soakage temperature is 30℃,soakage time is 6h, calcination temperature is 400℃,calcination time is 4h。
The optimal technical conditions of the later were that cuprous chloride and 1,10-phenanthroline were used as catalyzer, the molar proportion of catalyzer and 4,4′-diiodobiphenyl was 0.15:1, and the reaction mixture was refluxed for 7h in the solvent of xylene at 150℃.
After groping , reaches the best saponification technology condition: the saponification time is 4hours, the saponification temperature is 100 C, the ratio of alkali number consumed and the Waste edible oil's quality is 1: 2, and the density of sodium hydroxide is 30%.
The isolated technology condition had been worked out; flushed the tachypleus tridentatus shell with water till to neutral after it was soaked with hydrochloric acid at 1 mol/L. Then soaked it with sodium hydroxide at 2 mol/L,after that,soaded with hydrochloric acid at 1 mol/L,finally conducted reaction for 3 hours with sodium hydroxide at 2 mol/L under the temperature of 80 ℃?
Micro porous calcium metasilicate made from Denconite and calcium hydroxide was introduced in this paper. The technology condition of material ratio,reaction temperature and reaction time was confirmed by determining the false proportion and oil absorbed value of the product.
Prognostication of Technical Conditions for Low-Orbit Spacecraft with the Use of Neural Networks
These investigations can be used in developing diagnostic criteria for assessing technical conditions of thin-wall structures with the help of acoustic and fiber-optic methods.
People have shown great interest in how to make these huge glazed bricks at the ancient technical conditions, because it is very difficult to manufacture such huge bricks even with the modern technology.
Strict causality ensures determinacy under certain technical conditions, and delta-causality ensures the absence of Zeno conditions.
We show that, with some technical conditions, an Abelian monoidal category admits a monoidal embedding into the category of bimodules over a ring.