查询词典 alkali cellulose

The crystal structure of BC in dried and wet states is studied by FT-IR, X-ray diffractometry and CP/MAS solid-state^13C NMR The cellulose Ⅰ(subscript α) and crystallinity index of the bacterial cellulose in dried state are very high compared with the other native cellulose such as cotton and Valonia.

用傅立叶红外光谱、广角X射线衍射、交叉极化／魔角旋转固体核磁共振(CP/MAS^13CNMR)分析细菌纤维素在干态下和湿态下的晶体结构。

The specific properties of materials, such as the palate adhesion, dynamic cruor, anti-bacterial and the degradability of lysozyme, were studied, which provide valuable data for further application. The main creative ideas are listed as follows:(1) The water-retention chitosan/poly vinyl alcohol blend fiber was obtained by coagulating in 10％ NaOH/ethanol solution, and the blend and crosslink due to GA can enhance the mechanical properties of fiber;(2) The controlled degradable chitosan/gelatin blend fiber was obtained by solution filature, and the mechanical properties were improved;(3) The N-acylchitosan with the different degree of substitution were successfully prepared, and the relationship between structure and properties was estabilished;(4) By a new solvent system of 6％ NaOH/4％ urea for cellulose, the blood anti-coagulant function films were prepared by blending cellulose with chitin;(5) In the same solvent system above mentioned, the anti-bacterial blend films based on cellulose and carboxymethyl-chitosan were prepared, and the relationship of DS and the anti-bacterial property was concluded;(6) The controlled degradable chitosan films was obtained by the chemical crosslink.

本论文的主要创新点：（1）以NaOH水溶液／无水乙醇为凝固液，采用溶液纺丝法制备出保水性壳聚糖／聚乙烯醇纤维，共混和戊二醛交联极大提高了壳聚糖纤维力学性能；（2）用壳聚糖和明胶共混，以溶液纺丝法制备出可控降解的壳聚糖／明胶纤维，并大幅度提高了壳聚糖共混纤维的干、湿态抗张强度；（3）确立了不同取代度N-酰基壳聚糖的合成方法及其膜的结构与性能的关系；（4）利用纤维素新溶剂6％NaOH／4％尿素制备出抗凝血性纤维素／甲壳素共混膜；（5）利用上述纤维素新溶剂制备出抗菌性纤维素／羧甲基壳聚糖共混膜，揭示了羧甲基壳聚糖取代度与抗菌性能的关系；（6）制备出可控降解壳聚糖交联膜。

Compared the lignin and cellulose level of these two kinds of transgenic tobacco, we found that the cellulose content increased and the lignin content deduced in transgenic tobacco transformed with Amorpha fruticosa UGPA constructs, both the cellulose content and the lignin content increased in transgenic tobacco transformed with Acetobacter xylinum UGPA constructs.

结果表明，两种转基因烟草的尿苷二磷酸葡萄糖焦磷酸化酶的活性均有明显提高；转紫穗槐UGPA基因的烟草纤维素含量有所提高，木质素含量略有降低，纤维素与木质素含量之大连理工大学博士学位论文比提高；而转木醋酸菌来源的UGPase基因的烟草木质素含量和纤维素含量均显著提高。

Cellulose acetate butyrate with high or low degree of butyryl substitution was synthesized in heterogeneous system(butyric acid/ acetic acid/ butyric anhydride/ sulfuric acid) using the "free solvent" method. The effect of activation time, esterification time, the molecular weight of cellulose and the content of the organic acid or anhydride on the degree of acetyl and butyryl substitution of cellulose was discussed.

在非均相体系中进行酯化反应，采用&反应性溶剂&，以硫酸作为催化剂合成出从高丁酯含量到低丁酯含量的纤维素醋酸丁酸酯，研究有机酸以及酸酐的添加量、活化时间、酯化反应时间以及原料纤维素的分子量对酯化产物纤维素醋酸丁酸酯的影响。

Several of the bacteria (B2, Q1), fungi (W9) and action mycetes (H1), which were with the high activity of decomposition of cellulose ,were isolated from the rotten wood from secondary forest areas of the Yunnan-Guizhou Plateau and they were mixed with carboxy methyl cellulose-Na and filter paper etc to research the effect of the type of carbon and culturing time on the activity of the decomposition enzyme of cellulose.

方法］利用分离的几株来源于云贵高原地区次生林朽木中具有较高纤维素分解活性的细菌(B2、Q1)、真菌(W9)与放线菌(H1)分别和混合发酵纤维素羧甲基纤维素钠和滤纸等底物，研究碳源种类、培养时间对纤维素分解酶活的影响。

Grace Slim-cellulose capsule Breakthrough tradition thin body concept, Creates the thin body new times,Grace Slim-cellulose capsule Take the traditional keeping in good health idea as the basis, Union modern science metabolism balanced theory, Selects: Aloe distill, Spore farina, Spirulina powder, Vitamin, Chitin, The pure medicine food homology plant fine becomes, It includes the many kinds of amino acids, Vitamin, Meals cellulose, Human body essential trace element, Through slows down the fat synthesis, Balanced nutrition metabolism, Acceleration Steatolysis, Continues moderately to reduce the fat

雅姿丹塑形纤维素突破传统瘦身概念，创造瘦身新时代，雅姿丹塑形纤维素以传统养生理念为依据，结合现代科学的代谢平衡理论，选用芦荟提取物，灵芝孢子粉，螺旋藻，维生素，甲壳等纯正药食同源植物精致而成，。它含有多种氨基酸，，维生素，膳食纤维素及人体必需的微量元素，通过减缓脂肪合成，平衡营养代谢，加速脂肪分解，持续适度地减少脂肪。

Original materials used for preparing cellulose acetate are generally high quality celluloses with an a-cellulose content of more than 95%,therefore,cellulose materials capable of being used for preparing CA are usually cotton linters,as well as high-grade wood dissolving pulps,which are applied in commerce widely.

醋酸纤维素对纤维素的来源有较高的要求，其a-纤维素含量要高于95%，因而能够用于制备醋酸纤维素的原料通常是棉绒和高级木溶解浆，商业上广泛使用的是高级木溶解浆。

The degrading capability of a high-efficient complex microbial system to degrade cellulose and lindane was tested under different cultivating conditions. The results show that the complex microbial system can decompose filter paper, absorbent cotton, rice straw powder and sawdust effectively, especially has high degrading activity for the materials with higher native cellulose such as filter paper and absorbent cotton. The more cellulose was decomposed, the more lindane was degraded.

该论文作者对一组高效降解纤维素林丹的复合微生物菌系在不同培养条件下的降解能力进行了研究，结果表明，该复合菌系对滤纸、脱脂棉、稻秸粉和锯末等不同纤维素材料均有较强的降解能力，但相比之下对天然纤维素含量高的碳源降解效果更好。

The degrading capability of a high-efficient complex microbial system to degrade cellulose and lindane was tested under different cultivating conditions. The results showed that the complex microbial system can decompose filter paper, absorbent cotton, rice straw powder and sawdust effectively, especially has high degrading activity for the materials with higher native cellulose such as filter paper and absorbent cotton. The more cellulose was decomposed, the more lindane was degraded.

该试验对一组高效降解纤维素林丹的复合微生物菌系在不同培养条件下的降解能力进行了研究，结果表明，该复合菌系对滤纸、脱脂棉、稻秸粉和锯末等不同纤维素材料均有较强的降解能力，但相比之下对天然纤维素含量高的碳源降解效果更好。

The company mainly produces methyl cellulose, hydroxypropyl methyl cellulose, hydroxypropyl cellulose replace high and so on.

公司主要生产甲基纤维素、羟丙基甲基纤维素、高取代羟丙基纤维素等。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。