indicated hydrogen 中文意思是什麼
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Abstract : methanesulfonic acid method was used to prepare five acylated chitins. except heptanoyl chitin, four of them, i. e. acetyl chitin, propionyl chitin, butyryl chitin and hexanoyl chitin, had high degree of substitution ( from 1. 5 to 2. 0 ) and exhibited lyotropic liquid crystalline behavior and cholesteric phase. as the length of the side chain increased the critical concentration ( w / w ) somewhat increased from 0. 21 to 0. 26 because the chain rigidity dropped. the critical concentration values of all the four derivatives were much higher than that of chitin ( 0. 12 ) due to the decrease of intramolecular hydrogen bonds. the four acylated chitin can form typical banded texture after being sheared. there minimum concentrations to form banded texture of them were evidently different, varied from 0. 25 ( for acetyl chitin ) to 0. 37 ( for hexanoyl chitin ). these results further indicated that liquid crystallinity decreased while the length of flexible side substituents increased
文摘:四種羧酰化甲殼素即乙酰化、丙酰化、丁酰化和己酰化甲殼素在二氯乙酸溶液中均呈現膽甾型溶致液晶相.臨界濃度隨側基長度增加而略有增加，衍生物的臨界濃度明顯都比原甲殼素高許多，這些規律都可以用鏈剛性的變化來解釋.四種羧酰化甲殼素在剪切時均能形成條帶織構，而且能形成條帶織構的最低濃度有明顯差別，隨側基長度增加而提高，進一步表明側基較長，液晶性減少 -
Vegetable soil was treated with the 20ml / s mixed gas of hydrogen and air ( the ratio = 1 : 9 ) by the man - made analog equipment that can release hydrogen just like nodules, at the same time, control was made that treated with 20ml / s air flow. after three month, analysis the soil. which nutrition and how it changed were try to find. result indicated that nitrogen was changed but phosphorus and potassium had no evident change
採用人工模擬根瘤放氫裝置，一系列相關指標的變化，有效養分發生了何種變化及其可能機理。結果表明，土壤經氫處理后對氮素及其相關因子表現出較大影響，而對磷素和鉀素及其相關因子無明顯改變。 -
Some new laboratory studies of the manner in which deuterium gets exchanged between hydrogen gas and water vapor have indicated that the water vapor in the local region of the solar nebula would have had about the right proportion of deuterium to balance the excess deuterium seen in comets
最新的對于氫氣與水汽間氖交換方式的實驗室研究表明，處于太陽星雲里的水汽剛好有適當的氛含量來平衡彗星里所含的過多的氙。 -
First, mother materials were prepared by the technique, that mah - pp was interacted into the layers of montmorillonite by the force of hydrogen band and chemical force. then, pp and mother materials were mixed in two - screw machine. the results indicated that pp / mmt nanocomposites could be prepared successfully through two steps
首先用馬來酸酐接枝聚丙烯（ mah - pp ）進行插層處理，利用馬來酸酐接枝聚丙烯與有機蒙脫土片層之間產生的氫鍵和化學作用力，使mah - pp首先插層進入mmt層間，製成母料；然後，將母料與pp在雙螺桿擠出機上進行熔融共混。 -
The result indicated that the deposition reaction of amino - group doping was a kind of hydrogen escaping reaction, whose film was made from carbon, hydrogen and nitrogen
結果果表明本實驗中摻胺碳膜沉積反應為脫氫反應。薄膜由碳、氫、氮三種元素所組成。 -
Experiment of hydrogen evolution showed that the evolution hydrogen amount of current collector coated by mono - layer plating or double - layer plating was less than without them in 7. 0m koh solution with zinc power, and that of the double - layer plating of zn - in, sn - in was the least. cyclic voltammetry - indicated that there is an obvious reduction peak of hydrogen at the potential of about - 0. 8v vs
用動態析氫實驗表徵，發現沉積單、雙層金屬的集電體在含鋅粉的7 . 0m的氫氧化鉀溶液體系中的析氫量比無沉積層的銅集電體析氫量要小，其中，沉積鋅銦、錫銦雙層的析氫量最小。
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