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The development of mechanical timepieces spurred the regulate search for more accurate sundials with which to regulate them.

机械计时器的发展促使人们寻求更精确的日晷机械计时器的发展促使人们寻求更精确的日晷, 16。

The regulation of gene expression is to have relations to the assembly of the DNA binding proteins which bind to DNA to initiate the transcription. Some of these proteins have the ability to promote bending or looping of DNA. The FIS protein regulates gene expression in Escherichia coli by this property of bending DNA. There are many researches to discover the mechanism of FIS protein binds to DNA. However the experiment data only show the supposititious results and figure out the model of FIS-DNA complex structure. This research uses molecular dynamics simulation to compute the detail of the interaction between FIS and DNA. We observed FIS prominently affects the DNA bending by the type of local bending. Analyzing the DNA structure properties, roll and slide, also demonstrates the local bending type and region. The hydrogen bonds between FIS and DNA are analyzed to compare with the experiment data. Finally we compute the binding free energy between FIS and DNA to estimate the result of simulation and compare with the value of λ-repressor-DNA complex.

基因的表现与结合於DNA促使DNA转录作用起始的DNA结合蛋白组装有关,一些这类的蛋白质具有促使DNA扭曲或将DNA形成环状的能力,FIS蛋白质即是藉由扭曲DNA的特性调控大肠杆菌基因的表现,目前已有很多的研究发现FIS与DNA结合的机转,然而这些实验的数据仅能显示推测性的结果,进而利用这些结果推论出FIS与DNA聚合体结构的模型,本研究利用分子动态模拟的方式计算FIS与DNA交互作用的细节,我们观察到FIS主要影响DNA的扭曲方式为DNA区域扭曲的类型,并且分析DNA结构特性roll与slide也指出扭曲方式为区域扭曲与其扭曲的区域,我们也分析FIS与DNA之间的氢键,并且与实验的资料作比较,最后我们计算FIS与DNA之间的结合自由能评估模拟的结果,并且计算出的值和λ-repressor与DNA聚合体结构的实验值作比较。

The demand for salted herring in china, in conjunction with huge catches being brought in by the fishing fleet, spurred Yip Sang to build a fish packing plant in Nanaimo.

对中国咸鲱鱼的大量需求,再加上渔船船队带回来的巨大捕获量,促使阿寿在南奈莫建立了鱼片加工厂。这个厂的成功又促使他不久就在温哥华岛开了第二家。

The results suggest that clinical pathway the patient during period of hospitalization of surgical operation of panhysterectomy enable medical staff to fulfill intensive care, medical diagnosis and therapy in time, enable recourses to be used more efficiently, and help patients meet expected outcomes with a shorter hospital stay and in-hospital charges.

子宫肌瘤全子宫切除手术病人住院期间临床路径的实施可促使医护人员及时完成监护诊疗工作,提高医疗护理质量,缩短住院时间和住院费用,有效利用卫生资源;临床路径实施为病人治疗护理提供一标准化模式,促使医患双方共同促进病人的术后康复进程,最终达到提高病人满意度的目的。

Finally, we phenomenologically separate phase according to magnetic fields, the results is consistent with our new idea where we use the Hamiltonian with curved surface to analyze XY model. In chapter Ⅳ, we make two hypotheses: the system has one-step time correlation and two-step time correlation. We find the effect of Ratchet potential is similar to OSTC which changes the system's relaxation. TSTC may facilitate the system to move forward or backward along the nonlinear wave of the thermal fluctuation.

第四章,我们进一步作了两个唯象的假设:体系有一步和两步时间关联;发现Ratchet势与一步时间关联有相似效果——改变了体系对热噪声的驰豫;而两步时间关联项则能够促使体系在热噪声的非线性波形上定向&冲浪&,或者促使体系躲避热噪声的扰动保持在势阱底部。

The experimental results denoted that the finer pearlite along the austenite boundaries in the as-cast Cr30Ni20NRE steel disappeared first under long-term and high-temperature service condition, and that an umber of Cr- richened carbides were formed due to unila-teral carburizing at long-term and high- temperature, consequently causing Ni to concentrate, bulging and calalyzing decomposition of the carburizing gas.

试验结果表明,长期在高温条件下服役,铸态Cr30Ni20NRE耐热钢中沿奥氏体晶界的珠光首先融入奥氏体,长期高温单边渗碳形成大量富铬碳化物,促使镍富集并起泡形成瘤状物,催化含碳气体的分解;表层瘤状物使辐射管表层疏松,表面积扩张,加快了碳向基体的渗入,提供了碳化物持续长大的条件,并引起沿碳化物周边开裂和奥氏体基体严重萎缩;合金元素的重新分布造成主合金元素铬和镍产生两极分化,镍和硅的富集促使石墨化,与侵入的氧形成内部氧化空洞和膨胀疏松,最终导致构件穿孔失效。

The coagulating effect of the two proteinases and their mixtureon 7S and 11S was compared. Results indicated that two proteinases interacted witheach other during the coagulating process. 11S gel induced by mixture of twoproteinases was more elastic, and 7S gel induced by separated proteinase was moreelastic.

然后采用SP-sepharose阳离子交换剂从木瓜蛋白酶分离出2种蛋白酶组分,对比它们单独作用和复合作用于7S和11S蛋白的促凝能力,结果表明木瓜蛋白酶中两种组分对7S和11S蛋白的促凝过程中存在协同作用,复合作用可以促使11S蛋白形成弹性更强的凝胶,而单独作用可以促使7S蛋白形成弹性更强的凝胶。

Previous studies showed that CpG ODNs can induce trout head kidney cells to produce proliferation inducing factors, and then result in cell proliferation.

CpG ODNs可以诱导鳟鱼头肾细胞增生及促使头肾细胞产生细胞增生因子,进而促使细胞增生。

The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them.

机械计时器的发展促使人们寻求更精确机械计时器的发展促使人们寻求更精确的日晷,以便校准机械计时器。

And once water is properly priced, trade will encourage well-watered countries to make water-intensive goods, and arid ones to make those that are water-light.

而且一旦水价合理,贸易就会促使富水的国家制造富水的商品,促使缺水的国家制造用水少的商品。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。