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The main component of ramie glial was pectin, hemicellulose and lignin; The single factor on degumming of ramie test was respectively analyzed with a high vigorous of pectinase KDN and TZ-888 compound enzyme (mainly xylanase and mannanase on the pH value, bath ratio, dosage of enzyme, metal ions, temperature and time.The orthogonal test of L9(34 were done by bath ratio, dosage of enzyme, temperature and time. The results showed that the best compages of KDN pectinase on degumming was 1∶12 of bath ratio,pH 8.6,1 mmol/L Mg2+,300 IU/g of KDN pectinase,35℃、6 h;the best compages of TZ-888 compound enzyme on degumming was 1∶18 of bath ratio,pH 4.0,1 mmol/L Ca2+, 500 IU/g of TZ-888 compound enzyme,45 ℃,6 h.

摘 要:本研究根据苎麻胶质的主要成分为果胶、半纤维素和木质素,用高活性的KDN果胶酶和TZ-888复合酶(主要是木聚糖酶和甘露聚糖酶)从pH值、浴比、酶用量、金属离子、温度、脱胶时间等方面进行单因素试验,然后选取影响显著的浴比、酶用量、温度,时间进行四因素三水平的脱胶试验,结果表明鲜麻采用KDN果胶酶脱胶最佳组合为浴比1:18,pH 8.6, 1 mmoL/L Mg2+,酶用量300 IU/g,温度35 ℃、时间6 h时处理,TZ-888复合酶脱胶最佳组为浴比1:12,pH 4.0, 1 mmoL/L Ca2+,酶用量500 IU/g,温度45 ℃,时间6 h进行脱胶为优化的试验条件。

The main component of ramie glial was pectin, hemicellulose and lignin; The single factor on degumming of ramie test was respectively analyzed with a high vigorous of pectinase KDN and TZ-888 compound enzyme (mainly xylanase and mannanase on the pH value, bath ratio, dosage of enzyme, metal ions, temperature and time.The orthogonal test of L9(34 were done by bath ratio, dosage of enzyme, temperature and time. The results showed that the best compages of KDN pectinase on dry ramie degumming was 1∶12 of bath ratio,pH 8.6,1 mmol/L Mg2+,20 IU/g of KDN pectinase,4℃、4h;the best compages of TZ-888 compound enzyme on degumming was 1∶18 of bath ratio,pH 4.0,1 mmol/L Ca2+, 300 IU/g of TZ-888 compound enzyme,40 ℃,5 h.

摘 要:本研究根据苎麻胶质的主要成分为果胶、半纤维素和木质素,用高活性的KDN果胶酶和TZ-888复合酶(主要是木聚糖酶和甘露聚糖酶)从pH值、浴比、酶用量、金属离子、温度、脱胶时间等方面进行单因素试验,然后选取影响显著的浴比、酶用量、温度,时间进行四因素三水平的脱胶试验,结果表明干苎麻采用KDN果胶酶脱胶最佳组合为浴比1:12,pH 8.6, 1 mmoL/L Mg2+,酶用量200 IU/g,温度45 ℃、时间4 h时处理,TZ-888复合酶脱胶最佳组为浴比1:18,pH 4.0, 1 mmoL/L Ca2+,酶用量300 IU/g,温度40 ℃,时间5h进行脱胶为优化的试验条件。

On defining the conditional threshold of discretized density evolution, a method for designing the time-invariant quantized decoder with finite levels, which can approach the optimal time-varying one and hence the continuous decoding, is proposed.

应用Shannon率失真理论以及密度进化理论,阐述了最佳量化译码的时变特性,建立了离散密度进化的条件阈值概念,提出了二元输入对称信道上逼近最佳时变量化译码、进而接近连续译码的时不变量化译码设计方法,推导了量化和积算法与最小和算法的等价条件,从误码率性能、错误平层和平均迭代次数等三个指标全面衡量量化译码性能; 5。

After 7 days, conidiophore stretch, resembling the hyhae, straight or curved, septate, up to 800 μm long. The eonidia can germinate at 5—30℃ and the optimum temperature for conidia to germinat...

菌丝生长和孢子产生最适pH值为pH4—6,葡萄糖和木糖为最佳碳源,天门冬素为最佳氮源,维生素H和维生素B_1对孢子产生作用很大。

Numerical examples are studied to demonstrate the accuracy of the proposed method and to investigate the distribution of the optimal stiffness of the elastic restraints, the deformation of the elastic restraints and deflection of the stiffened plate for stiffened plate with different number of stiffeners, different cross section of stiffeners and different thickness of plate.

本研究利用牛顿法提出一个数值程序以求得使目标函数有最小值且满足拘束条件的弹性支承刚度,即求得最佳化的弹性支承刚度。本研究以数值例题探讨不同加劲板之最佳化的弹性支承刚度,弹性支承变形的分布及加劲板的最大挠度。

SSRs are very suitable for research on genetic diversity and phylogenetic relationship since they are more reliable, co-dominant in heritance large number of alleles per locus, and abundance in genomes.

对椰子SSR反应体系进行了优化,确立了最适宜的体系:在20μL反应体系中,Mg2+、引物和dNTP的最适浓度分别为2.5mmol/L、0.3μmol/L、0.2mmol/L;TaqDNA聚合的最佳使用量为1U,模板DNA应加入50ng,引物最佳退火温度比每对引物Tm值较小者小2-3℃。

The major results as the following: Medium MS+6-BA 2.0 mg·L-1 +2,4-D 0.5 mg·L-1 is optimum for callus induction of C.japonica "Naidong";The pH 5.5 is comparatively suitable for C.japonica "Naidong" callus induction;Using the leafstalk of C.japonica "Naidong" as the exp...

研究结果表明:MS+6-BA 2.0 mg.L-1+2,4-D 0.5 mg.L-1培养基是耐冬山茶愈伤组织诱导的最佳培养基;耐冬山茶愈伤组织诱导培养基pH值以5.5较为合适;耐冬山茶叶柄作为外植体,诱导率和生长状况最佳。

Complex flocculant PASS has the abilities of neutralizing electric charge and flocculating. The experimental results show: it is feasible that the emulsion wastewater can be treated into qualified discharging water. The dosage of flocculants and pH value have been optimized by coagulation experiments. In addition the mechanism for emulsion wastewater has been studied by using Perron timed complex colorimetric method and neutralization method. Aiming at characteristics of high concentration and high CODCr emulsion wastewater the technology that emphasized on coagulation-precipitation twice has been proposed in this paper.

本文采用复合型絮凝剂处理乳化液废水,研究结果表明,乳化液废水的处理过程包括凝聚脱稳及吸附絮凝,其中絮凝是决定混凝效果的关键性步骤,复合型絮凝剂聚硅酸硫酸铝是一种既具有较强的电中和能力,又具有优异的絮凝性能的无机混凝剂,通过对乳化液废水药剂筛选实验,实验结果表明聚硅酸硫酸铝对乳化液废水是比较合适的混凝剂,并确定了药剂的最佳投药量、最佳pH值条件等操作参数,针对乳化液废水的特点,综合国内外研究成果和经验,提出了二次混凝沉淀处理方案,该方案具有处理设备结构简单、运行管理简便等优点。

On the basis of the previous results and according to the central composite experimental design principles,the method of response surface method with 3 factors and 3 levels was adopted.then the factors influencing the technological parameters were determined by means of regression analysis.response surface and contour were finally graphed with the extraction rate as the response value.resultsthe optimum conditions of lycium barbarum polysaccharides extraction were as follows:the ratio of material to solvent of 1∶32,extraction temperature of 84℃ and extraction time of 2.3 h,one time extraction.conclusionthe yield of lycium barbarum polysaccharides is 11.10% under the optimum conditions.

方法在单因素实验基础上选取实验因素与水平,根据中心组合(box-benhnken)实验设计原理采用3因素水平的响应面分析法,依据回归分析确定各工艺条件的影响因子,以多糖提取率为响应值作响应面和等高线。结果在分析各个因素的显著性和交互作用后,得出枸杞多糖水浸提的最佳工艺条件为:料液比1∶32;浸提温度84℃;浸提时间2.3h;浸提1次。结论在最佳工艺条件下,枸杞多糖的实际提取率可达11.10%。

The optimal multicast interval, the optimal request threshold and server channel capacity requirements for the RMFS scheme are all analyzed.

分析了RMFS方案的最佳组播间隔、最佳请求阈值和最小服务器容量需求。

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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。

Store this product in a sealed, lightproof, dry and cool place.

密封,遮光,置阴凉干燥处。