结晶作用

Tanshinone deposited on the surface of the carrier in crystal form, and the size was obviously reduced. A lot of acerose crystals of tanshinone on the surface of the carrier occurred. No chemical reaction acted between tanshinone and carrier.

结果：溶剂沉积物明显提高了丹参酮的溶出度；丹参酮以结晶形式沉积于载体表面，结晶颗粒与沉积前相比明显减小，且出现大量针状微晶；丹参酮与载体间仅仅是物理作用。

Methods: 1. Male Sprague-Dawley rats were established renal calcium oxalate calculi model. 2. The different dose of LBP, medlar soak and apozem was given. The calcium oxalate crystallization, the renal cell apoptosis and the renal free radical level were detected. 3. The relationship of the renal cell apoptosis index, the renal free radical level and the calcium oxalate crystallization grade in the kidney tubule was determined.

1、给大鼠建立肾草酸钙结石模型；2、予以不同剂量的枸杞多糖，不同浓度的枸杞浸泡剂和煎剂灌喂，比较肾小管内草酸钙结晶的形成，测定肾小管上皮细胞的凋亡指数，自由基水平；3、分析结晶等级评分、细胞凋亡指数和自由基的相互关系，判断枸杞多糖预防肾草酸钙结石的作用机制和效果。

On the basis of the discovery, this paper presented that the Myanmar jadeitites crystallized in the aquiferous jadeitic melts and its formation, transportation, intrusion, and interaction with country rocks was under the deoxidized conditions.

在此基础之上，提出了缅甸帕敢硬玉岩的成因是由含水的组成上接近硬玉的熔体结晶而成，硬玉质熔体的形成、运移、侵位、结晶、与围岩的作用是含水与还原条件下进行的。

However, freezing also has some negative effects on the food quality because of crystallizing, recrystallizing and enzymic activity.

在贮藏和输运过程中，受结晶、再结晶及酶的活性等因素的作用，冻结食品的质量有不同程度的下降。。。。

The determination demonstrated that the anionic polymerization of ε-caprolactam under 230℃ leaded to a mesomorphous form of PA6; the EPDM had heterogeneous nucleation effect on the crystallization of dispersed PA6 phase; in situ polymerization could further reduce crystallization enthalpy of PA6 component on the level of reactive compatibilization.

研究表明，230℃下进行阴离子聚合得到的PA6为β-介晶型；EPDM对这种分散在橡胶相中的PA6的结晶具有异相成核作用；原位聚合可在反应增容的基础上使得共混物中PA6的结晶焓进一步降低。

The results show that nuclei make the microcrystalline structure and crystalline rate of PA1010 changed.

通过引入成核剂（Nd2O3）研究PA1010微晶结构的变化，以及对PA1010结晶行为的影响，也讨论了成核剂对结晶－非晶中间相的作用。

Studies on the crystallizing kinetics and micromeasurement explained that it speeded up the nucleation and avoided the aggregation of the crystals thus making the crystal product to be minimized.

对结晶动力学的研究和微观检测显示，控制一定的结晶工艺参数可减小二维晶核临界半径，加快晶核生成速度并避免了晶体的团聚作用，从而使产品趋于微晶化。

It is shown that solvents may be classified by its effect into the active solvent and unactive solvent, and then, according to change of cold crystal peak area, effects of unactive solvents on the PET may be classified into three types: unchanged, reduced behind time and quickly reduced.

同时，对于非反应性的作用，依冷结晶峰面积的变化，又可分为三种类型：冷结晶峰面积不变，经诱导期后下降，无诱导期而迅速下降。

XRD and NMR analyses showed that a type of semicrystalline structure existed in the precipitate. However, ether-based polymeric structure was uncrystallizable due to existence of the complex intermolecular hydrogen bonding interaction.

结合XRD和核磁共振分析结果推测：硫脲甲醛聚合产物中存在着一种氢键导向型结晶结构；分子中含有醚键的聚合产物因具有复杂的氢键作用没有结晶性。

Through a variety of resin filter, adsorption and elution conditions for the optimization, as well as decolorization, crystallization methods of research, this article eventually determine the strong acid cation resin HZ-001 which is at pH 3, 3BV / h, having the largest adsorption to the tryptophan; the fermentation broth were centrifuged to remove sediment,then treated with activated carbon to be decolored and then treated with strong acid cation resin HZ-001. After that,2mol/l amino acid were passed through the HZ-001 ion exchanging column,kept almost constants when the flow rate stayed 6 BV / h. At 60℃,it was condensed into the saturated state and then added Ethanol until its percentage reaching 30%. At 4 ℃ under 100rpm placed in the shaker 20h, the collection of L-tryptophan was dried up in vacuo.

本文通过对种树脂的筛选、吸附和洗脱条件的优化，以及对脱色、结晶方法的研究与摸索，最终确定强酸型阳离子树脂HZ-001在pH=3，3倍床体积流速，温度室温，对色氨酸有最大的吸附作用；将发酵液离心去沉淀并用活性炭脱色后通过HZ-001强酸型阳离子交换树脂柱，再用2mol/L的氨水6倍床体积流速在室温下进行洗脱，收集洗脱液，60℃浓缩为过饱和状态后加入30%无水乙醇，4℃下100rpm摇起晶20h，过滤搜集结晶并真空干燥得白色粉片状L-色氨酸晶体。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。