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In Chapter 2 of this thesis, the kinetic equation of substrate reaction in presence of denaturant has been derived. A re-examination of the effect of high concentrations of guanidine hydrochloride on the inactivation of papain, taking into consideration the effect of high concentrations of guanidine hydrochloride on the Michaelis constant, showed that, for papain, the substrate gives no protection on its inactivation.

我们在第二章中推导了变性剂存在下的底物反应动力学方程,并在考虑了高浓度盐酸胍对酶催化反应米氏常数的影响的前提下,根据推导的动力学方程重新分析了盐酸胍存在下木瓜蛋白酶的失活动力学,结果表明底物对木瓜蛋白酶的失活没有保护作用。

The results showed that the different mass concentration of HPAM's absorbance decreases slightly when the PH value of the buffer solution is 5.0, but its reproducibility is better;In order to make the absorbance become more stable, the reaction time was identified adding proper quantities of bromine water, sodium formate and starch-cadmium iodide reagent to the solution separately; the mass concentration curve of the HPAM was draw, by means of the straight degree of the curves, the coincidence degree of the straight line about the concentration of every sampling point and so on , it shows that the mixer has good mixed effect compared with the standard curve.

如下是一些主要问题:1)文章的行文格式。文章没有按照一般科技论文的表述方式,如1是引言,2是常用方法,其实这都应该是第一部分引言里应该介绍的,引言中应扼要介绍文章的研究背景、目的,意义,采用的主要方法等。还有3是实验装置,4是实验步骤,应该这些都是第二部分,试验材料与方法。2)文章的内容。文章应主要介绍本研究的具体内容,但是本文没有,如3 实验装置部分,这个721分光光度计的原理与论文内容联系不大,根本没必要介绍,标准曲线的研究应该放在最前面等。3)文章的表述不清。如HPAM是何物,文章一直没有介绍,什么曲线的直线度、浓度与直线的重合度、什么加入溴水后的时间,应该是反应时间,总之表述不清! 4)文章的图表。图标绘制的很难看。如图2,应该纵坐标起始点从0.25开始,这样图形就会美观很多,图3又没有纵坐标标注,还多了一个纵坐标等。5)文章的结论。文章的结论中有些严格来说不是结论,而是实验中的现象与操作注意事项。

Bad man never fret the war, tell'em come general we have the stock, the mad fire burn I-ya, I against I, flesh of my flesh, and mind of my mind, two of a kind but one won't survive, my images reflect in the enemies eye, and his images reflect in mine the same time, I-ya, I-ya, I against I, flesh of my flesh, and mind of my mind, two of a kind but one won't survive, survive (x16) Reign supreme in your U-N-I, V-E-R-S-E with the sharpness, narrow row building no space for partners, no space for drivers, no space for walkers, no space regardless, your on my path then get off it, hardheaded and unresponsive, get they lives put on target with harshness, come with the canons sparkin' they darken, who am i?

坏男人从不烦恼战争, tell'em 来一般的我们有存货,疯狂的火燃烧我-ya,我反对我,我的肉肉,而且我的思想思想,类型中的二个除了一之外将不生还,我的图像在敌人眼睛中反映,而且他的图像在我的相同时间中反映,我-ya,我-ya,我反对我,我的肉肉,而且我的思想思想,类型中的二个除了一之外将不生还,生还(x16)当政你的 U-N 的至高-我,和锐利的 V-电子 R-S- E,狭窄部份排建筑提供合伙人的没有空间,提供驾驶者的没有空间,提供徒步者的没有空间,没有空间不管,你的然后在我的路径上离开它,冷静的和反应迟钝的,拿生命给他们用粗糙的事物穿上目标,带教会法规 sparkin 来'他们弄暗, i 是谁?

SiO〓 crystal transformation was improved by adding Na〓SO〓, alpha cristobalite but not tridymite was catalytic active support. C〓 selectivity was improved by adding W and P, and suppressed deep oxidation property of SiO〓. W-O in catalyst surface was not active species. The support combined with S, W, P show low activity and high C〓 selectivity.

Na〓SO〓的加入促进了SiO〓晶型的转化,α-方石英是催化活性载体成分,而鳞石英没有甲烷氧化偶联反应活性。W和P的加入改善了C〓烃的选择性,抑制了SiO〓的深度氧化特性;W-O物种不是催化活性物种;由S、W、P及SiO〓组成的载体反应活性较差,但选择性较好;同时S元素对C〓烃的选择性的贡献有限。

The test results indicate that the zincate catalyst systems can accelerate these reactions high-effectively, so its selectivity is up to 100% and TOF is 5472h -1, and the activity and the selectivity of the catalyst are kept in six times, and the catalyst system can be availab.

研究了离子液体助催化的各种无机盐催化剂体系用于二氧化碳和环氧化合物通过环加成反应制备环状碳酸酯,结果表明锌盐催化剂体系能够非常高效地催化该反应,最高得到了 5 472h- 1的催化转化频率和 10 0 %的选择性,催化剂使用六次以后没有发现催化活性和选择性的下降,并且该催化剂体系能够适用于各种结构的环氧化合物。

Significant loss of GEMs was not observed but strong growth activities, formation of biofilm and zoogloea on the surface of immobile particles were observed via scanning electron microscope. The mechanical stability of the particles remained unchanged after nearly two-month operation.

在整个反应过程中,没有出现大量工程菌流失的现象,同时在固定化颗粒的表面以及浅层均观察到了大量工程菌菌体,固定化颗粒的表面还出现了生物膜和菌胶团,反应结束时,颗粒形态完好,强度满足本工艺条件下长期使用的需求。

Sustained AF could be induced easily in all dogs during vagal nerve stimulation in vivo both before and after isolation of all PVs with encircling lesions created by a bipolar radiofrequency ablation clamp device. PV elimination had no effect on atrial effective refractory period or its responses to cholinergic stimulation. Autonomic ganglia were identified by bradycardic and/or tachycardic responses to high-frequency subthreshold local stimulation. Ablation of the autonomic ganglia overlying all PV ostia suppressed the effective refractory period-abbreviating and AF-promoting effects of cervical vagal stimulation, whereas ablation of only left- or right-sided PV ostial ganglia failed to suppress AF.

无论是在双极环状消融所有PV之前或之后,在体刺激颈迷走神经节过程中持续性房颤在所有犬均能轻易被诱导出,PV切除对心房肌的有效不应期或对胆碱的反应均没有影响,通过对高频的域下刺激发生快速或慢速反应来鉴定自主神经节,消融叠加于PV口部的自主神经节能抑制有效不应期的缩短、和刺激颈迷走神经诱发的房颤促进作用,而仅消融左或右侧PV口部的自主神经节却不能抑制房颤。

NO+NH3 temperature-programmed reaction runs over reduced catalyst samples pretreated with various oxidizing species showed that both NO2 and HNO3 were able to reoxidize the V catalyst at much lower temperature than gaseous O2: furthermore, they significantly enhanced the NO + NH3 reactivity below 250 C via the buildup of adsorbed nitrates, which act as a surface pool of oxidizing agents but are decomposed above that temperature.

不+NH3 温度-规划反应奔跑结束减少催化剂样品预先处理与各种不同的氧种表示两者的没有 2 和 HNO3 能够到再氧化 V 催化剂在非常低的温度超过气体的 O2:此外,他们重要地可提高的那不+ NH3 反应度在下面 250?C 经由组织吸附硝酸盐,哪一个行为当做一表面池氧代理人但是被分解上方哪一温度。

As a response, this seemed inadequate to the immensity of the balloon, the suddenness of its appearance over the city; on the other hand, in the absence of hysteria or other societally induced anxiety, it must be judged a calm,"mature" one.

作为一种反应,这态度对于气球的庞大无比以及它在城市上空的突然出现,似乎很不合适;另一方面,那些没有患歇斯底里症或者其他社会性人为忧郁症的人则毅然断言,这种反应是冷静的、&成熟的&。

Some related specilist point out ,the modernists dependent upon mobile phone more and more , the mobile phone is not the same as the common ionization radiation ,the wavelength of electronmagnetic wave emanated by the mobile phone is 900MHz to 1800MHz. Although, the DNA has not been damaged by it to certain degree yet , but this microwave can radiate to the depth of encephalic 4 to 6cm . stimulate the water molecules and cells moving ,result in the temperature of corresponding tissue raising 0.1c, induce the fever reflection such as the headache,disfunction of blood supply in brain, cauterized feeling on the skin of face ,ear as well as the skin around the ear etc .also induce the non-fever reflection such as the changing of sleeping style ,raising blood pressureand and disfunction of recognization etc.

0有关专家指出,现代人越来越离不开手机,但不同于普通的电离辐射,手机发射的电磁波波长为900MHz--1800MHz,虽然尚没有达到损伤DNA的程度,但此种微波可以辐射深度达颅内4--6cm,刺激水分子和细胞发生运动,导致相应组织温度上升0.1c,引发如头痛,脑供血障碍,面部皮肤烧灼感及耳部及耳周皮肤烧灼感等热反应,而且可以引起诸如睡眠方式的改变,血压升高,认知功能障碍等非热反应。

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She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

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