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TWO:"One of the curious places we saw was the Hall of Examinations. This is a large enclosed space, having rows on rows of little cells, where the candidates for the literary degree are examined once in every three years. There are eleven thousand of these cells, and each cell is just large enough for one man to occupy. The candidates are put in these cells, and each man is furnished with a sheet of paper and a pen. He must write on the paper any given page of the Chinese books called 'The Classics' without mistake or alteration, and he is not allowed to try a second time until the next examination comes round. There are men who keep on trying all their lives for the degree, and they tell of one man who succeeded after he was eighty years old. The candidates try all sorts of tricks to smuggle in copies of the books on which they are to be examined, and also extra sheets of paper; but they are carefully searched, and everything of the sort is taken away from them."She's my sweetheart," Arthur replied.

Membrane separation type solvent dehydration system

Great attention is recently being paid to global environmental issues, and it is now conceivable that companies will need to treat used solvents themselves. In consideration of this kind of social issue, we have developed a “membrane separation type solvent dehydration system,” which uses a polyimide membrane with superior dehydration properties developed by Ube Industries, Ltd. in combination with our own distillation and concentration technology that has resulted in solvents being more easily recovered.

THREE:"Oh, hang him and the horse! you've told me that three times; what of it?"
  • 1Under the distillation system, even in case of azeotropic solvent compositions, this system which remove water vapor by the polyimide membrane will easily dehydrate.
  • 2In comparison with the distillation system, it significantly saves on use of steam.
  • 3Dehydration can be performed through merely supplying evaporated vapor to the membrane module and maintaining the differential pressure between the permeable side and the impermeable side.
  • 4Solvent purity of 99.9% or more can be achieved by carrying out dehydration with a polyimide membrane only.
  • 5The polyimide membrane has superior heat and solvent resistance. Therefore, the vapor permeation system reduces contamination of the membrane and thus extends its life.
THREE:"I'm afraid you'll 'ave to make do," was the sharp rejoinder, for there was not much on the table, and the Doctor favoured a light supper. "There's watercress," she added, defensively.She laughed under her breath as if at hide-and-seek. Then we galloped, then trotted again, galloped, walked and trotted again. Two miles, three, four, we reckoned off, and slowed to a walk to come out cautiously upon the union Church and Fayette road. A sound brought us to a halt. From the right, out on the main road, it came; it was made by the wheels of a loaded wagon. I leaned sidewise until her hat-brim was over me and whispered "Yankee foragers;" but as I drew my revolver we heard voices, I breathed a sigh of relief, and with her locks touching mine we chuckled to each other in the dark. The passers were slaves escaping to the Federal camp.

The aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.

THREE:The church we went to was in Franklin, but the preacher was a man of note, a Vicksburg refugee. On the way back Gholson and I rode for a time near enough to Squire Sessions and Ned Ferry to know the sermon was being discussed by them, and something they said gave my companion occasion to murmur to me in a tone of eager censure that Ned Ferry's morals were better than his religion.
  • 1 Recovery of the detergent solvent Recovery of the cleaning solvent such as electronic parts industry, precision instrument industry.
  • 2Solvent recovery and the refinement Solvent recovery and the refinement such as chemical industry, an industry of medical supplies, food industry, the fermentation industry.
THREE:

Acetone, ethanol, methyl ethyl ketone, butanol, isopropyl alcohol, ethyl acetate, methyl isobutyl ketone, others (including hexane and toluene).