查询词典 browning solution

Necessary and sufficient conditions for the existence and the expressions of selfconjugate solution, perselfconjugate solution, centrosymmetric solution, bisymmetric solution, skewselfconjugate solution, skewperselfconjugate solution, skewcentrosymmetric solution, and skewbisymmetric solution to 4 kinds of systems of linear matrix equations over a regular ring with an involutorial antiautomorphism are given.

利用矩阵技巧和所建立的矩阵理论，给出了正则环上五类矩阵方程组有解的若干充要条件和一般解的表达公式。这些矩阵方程组除了它们在理论上有重要的意义外，还有重要的应用价值。在具有对合反自同构的正则环上，给出了四类矩阵方程组有双对称解，中心对称解，斜中心对称解，广自共轭解，斜广自共轭解，自共轭解以及斜自共轭解的充要条件及其这些解的具体表达式。

By using constructive methods and complicated techniques of matrices, necessary and sufficient conditions for the existence of selfconjugate solution, perselfconjugate solution, centrosymmetric solution, bisymmetric solution, skewselfconjugate solution, skewperselfconjugate solution, skewcentrosymmetric solution, skewbisymmetric solution and various interlaced solutions over a finite central algebra Ω to systems of generalized Sylvester matrix equations overΩ are presented.

利用构造方法和复杂的矩阵技巧，研究了有限维中心代数上的多项式环Ω上的广义Sylvester矩阵方程组在Ω上有自共轭解，斜自共轭解，广自共轭解，斜广自共轭解，中心对称解，斜中心对称解，双对称解，斜双对称解及其各种交错解的充要条件。

Meanwhile, the experiment of three factors and three levels,whose influential factors are the kind and concentration of reagent for controlling nonenzymatic browning and the soaking time,is carried out and the results show that the optimal technological condition for controlling nonenzymatic browning is to soak the material in 2% edible citrin solution for 45 min before the material is blanched.

同时以抑制剂种类、浸泡液质量分数及浸泡时间为影响因素，进行了三因素三水平试验。结果表明，将原料在灭酶前用2%的食用柠檬酸溶液浸泡45 min为抑制非酶促褐变的最佳工艺条件。

Wherein, the chemical formula of said compound is γ-HaKbNac(H2O)dNixM1-XO2 and the method comprises that mixing the nickel salt solution and at least one metal salt solution to attain the solution A; preparing caustic soda or caustic potash solution and adding sodium carbonate or potassium carbonate to attain the solution B; preparing the ammonia solution C; reacting the A, B, and C, processing the solid-liquid separation to attain the ball α nickel hydroxide; reacting with the oxidant in the solution of caustic soda or caustic potash to attain the black solid-liquid mixture and processing the solid-liquid separation to attain the ball γ hydroxyl nickel oxide.

其化学表达式为γ-HaKbNac(H2O)dNixM1-XO2，将镍盐溶液与至少一种金属盐溶液混合得溶液A，配制氢氧化钠或氢氧化钾溶液，加入碳酸钠或碳酸钾得溶液B；配制氨水溶液C；将A、B、C反应，固液分离，得球形α氢氧化镍；在氢氧化钠或氢氧化钾溶液中与氧化剂反应，得黑色固液混合物，再固液分离，得球形γ羟基氧化镍。

Firstly, the existence and uniqueness of the solution for neutral stochastic functional differential equations with infinite delay under the uniformly Lipschitz condition, linear grown condition and contractive condition can be directly derived; And the moment estimate of the solution and the estimate for error between the approximate solution and the accurate solution can be both given; If the uniformly Lipschitz condition is replaced by the local Lipschitz condition, the existence and uniqueness theorem can be gained; Meanwhile, the existence and uniqueness of the global solution in the interval 0,+∞ can also be obtained; Secondly, L~p-exponential estimate of the solution for neutral stochastic functional differential equations with infinite delay can be studied; At length, the theorem of the local solution about neutral stochastic functional differential equations with infinite delay only under the local Lipschitz condition and the contractive condition can be established.

首先，在一致Lipschitz条件，线性增长条件和压缩性条件下，直接得到了具无限时滞中立型随机泛函微分方程解的存在惟一性，并给出了解的矩估计，近似解与精确解之间的误差估计；将一致Lipschitz条件替换为局部Lipschitz条件，也得到了具无限时滞中立型随机泛函微分方程解的存在惟—性，同时，也给出了在整个区间0，+∞上具无限时滞中立型随机泛函微分方程解的存在惟一性定理；其次，也讨论了具无限时滞中立型随机泛函微分方程解的L~p指数估计；最后，在局部Lipschitz条件和压缩性条件下，建立了具无限时滞中立型随机泛函微分方程局部解的存在惟一性定理。

A preparation method of the visible-light photocatalyst Bi2WO6 nano-powder is characterized by comprising the steps as follows:(1) the selection of raw materials;(2) bismuth nitrate Bi(NO33 question mark 5H2O is added into a citric acid solution to obtain the citric acid solution containing white sediment;(3) EDTA is added into ammonia water which is then added dropwise with the citric acid solution containing the Bi(NO3)3 question mark 5H2O so to obtain a solution of bismuth;(4) the solution of bismuth is added with (NH4)6W7O24 question mark 6H2O solution to form a precursor solution which is then stirred, dried, coked, cooled and ground to obtain decarburized powder;(5) the decarburized powder is roasted for 2h to 4h under 450 DEG C to 550 DEG C to obtain the visible-light photocatalyst Bi2WO6 nano-powder.

可见光催化剂Bi 2 WO 6 纳米粉体的制备方法，其特征在于它包括如下步骤：1原料的选取；2将Bi(NO 3 ) 3 5H 2 O加到柠檬酸溶液中，得到含有白色沉淀的柠檬酸溶液；3将乙二胺四乙酸加到氨水中，并缓慢滴加入含有Bi(NO 3 ) 3 5H 2 O的柠檬酸溶液中，得铋的溶液；4将(NH 4 ) 6 W 7 O 24 6H 2 O溶液加入上述铋的溶液中，组成前驱液；搅拌，干燥，焦化，冷却后，研磨，得去碳的粉体；5将去碳的粉体在450～550℃下焙烧2～4h后，得到可见光催化剂Bi 2 WO 6 纳米粉体。

The results showed that 4-HR combined preventing browning reagent has good controling browning effects on the above four kinds of materials. The best combination to apple-slice is A2B2C1, namely 0.02% 4-HR, 0.03% antiscorbutic acid and 0.5% citric acid; the best combination to banana-slice is A2B2C2, namely 0.02% 4-HR, 0.03% antiscorbutic acid and 0.75% citric acid; the best combina...

实验结果表明4-HR组合防褐试剂对上述四种材料均表现良好的护色效果，其中对苹果切片的最佳组合是A2B2C1，即0.02%4-HR、0.03%抗坏血酸、0.5%柠檬酸；香蕉最佳组合是A2B2C2，即0.02%4-HR、0.03%抗坏血酸、0.75%柠檬酸；马铃薯切片和莲藕汁的最佳组合都是A1B1C2，即0.01%4-HR、0.02%抗坏血酸、0.75%柠檬酸。

Content of flavone is the hightest in browning callus. It is supposed, that suppose which the last pace of synthesize flavone is in brovwing callus. SDS-PAGE cataphoresis electrophoresis show protein has big change from differentiating callus to browning callus. The change may has relation with change of enzymire activiation of control flavone synthesize.

黄酮含量的变化以褐化愈伤组织中含量最高，因此我们推测：黄酮合成的最后几步，可能发生在褐化愈伤组织中，从可溶性蛋白质的 SDS-PAGE 平板电泳结果表明，分化愈伤组织与褐化愈伤组织相比蛋白质谱带发生了明显的变化，这可能与控制黄酮合成的有关酶的活性变化有关。

Results show that treating the pear juice with FPC-21 resin can reduced pH value, formol index and browning index. Reduction of pH value enhence the decolor ability of XAD-16 resin on pear juice. Reduction of pH value and formol index can control the browning rate of PJC during storage.

结果显示，阳离子树脂处理可降低酥梨汁的pH值、氨基态氮和褐变指数；降低pH值可提高吸附树脂对酥梨汁的脱色能力；降低pH值、氨基态氮可控制70 °Brix浓缩酥梨汁贮存中褐变速度。

Several non-enzymatic types of browning reactions that might possibly occur in citrus juice during storage were also discussed, the result indicated that degradation of Vc was the main cause of browning, whereas the possibility for Maillard reaction, Caramelization, Polyphenol oxidation and condensation to take place in juice was little.

在贮藏过程中，还对橙汁中可能发生的几种非酶褐变类型进行了探讨，发现Vc的降解反应是橙汁褐变的主要原因，而美拉德反应、焦糖化反应或酚类化合物的氧化缩合反应在橙汁中发生的可能性都很小。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。