查询词典 factors

Transcription factors can control the transcription of their target genes when they bind to the DNA-binding sites on their promotors. They can transfer the messages of growth factors and so on to those effective molecules. Core binding factor al is such a kind of transcription factor, which can control the differentiation of osteoblasts peculiarly. They can induce the pro-osteoblasts or non-osteoblasts to synthesize and secrete most mineralize related proteins such as ALP, OC, OPN, BSP and so on, in order to differentiate to osteoblasts finally.

转录因子是一类可以通过与下游靶DNA结合，从而调控下游基因转录的分子，它们接受来自生长因子等方面的信号，再将这些指令具体地传递给直接执行功能的蛋白分子。cbfal是一种成骨分化特异性转录因子，可以诱导成骨前体细胞合成和分泌ALP、OC、OPN、BSP等矿化相关蛋白，向成骨细胞分化。

These enterprises are the representatives of the advanced productive forces, including many functions the using, transferring, integration and ability to create knowledge, having creative ability is a key factors to determine the survival and development of enter prises, and the knowledge-based talents are key factors in these core elements.

这些企业是先进生产力的代表，具有运用、整合、传送和创造知识的功能，其中是否具有创新能力是决定高新科技企业生存和发展的关键性因素，而高新科技企业中的知识型人才则是其中的核心元素。

Detailed investigation have been made into the three important factors of part shape, deformation conditions and forming methods based on the overall analysis of influence of various factors on the forming accuracy of pressings.

本文在综合分析了各种因素对冲压件成形精度影响规律的基础上，对提高冲压件成形精度的三个重要因素包括零件形状、变形条件及冲压成形方法进行了详细的研究。

With the developing of sea ice researches, more new scientific questions are raised, such as the interaction between sea ice and the other factors of global climate system, the seasonal and regional distributions of Polar sea ice thickness, Polar sea ice boundary and area changing trend, sea ice growth, melt and its influencing factors, the role of the polynya and sea/air interactions.

海冰和全球气候系统其它要素之间的相互作用问题、极地海冰的厚度季节性区域性分布问题、极地海冰边界及范围变化趋势问题、生消关键过程及其影响因素问题、冰间湖的作用以及海气相互作用等将是未来重要的研究方向。

Study on effect factors of liquidation of potato flour;2. According to an enzymatic process for the manufacturing of high maltose syrup through orthogonal test, the factors affecting the liquidation process of potato starch were studied deeply in this paper with the raw material of potato starch.

以马铃薯淀粉为原料，利用酶制剂制备高麦芽糖浆，采用正交实验法，对马铃薯淀粉液化过程的影响因素进行了详细研究，得到液化工艺的最佳条件为：淀粉浆浓度40%、耐高温α-淀粉酶用量106U/g淀粉、液化温度94℃、液化时间10min，所得液化液的DE值为9。

Potato flour, soybean powder, FeSO_4 were screened out as the most suitable carbon source, nitrogen source and inorganic salt source, respectively. Based on these, screening methodology Plackett-Burman design was used to evaluate the effects of twelve factors related to amylase production and three statistically significant factors soybean powder, temperature, bran were selected.

酶对底物的作用方式表现出多样性，以表面扩散侵蚀的方式作用于马铃薯和木薯生淀粉，以表面扩散侵蚀和形成大侵蚀孔洞的方式同时作用于红薯淀粉。4、利用响应面法对菌株AF-1固态发酵产生淀粉酶的条件进行了优化。

It was found that electrical field strength and potential around the the sample changed less in the fully insulated chamber than in conducting material phytotron, so it is closer the real condition. Based on the design, the first fully insulated large artificial climate chamber in China, in which temperature , humidity, and atmospheric pressure can be regulated, has been built in our laboratory. The paper developed an insulation parameters automatic test system of high voltage capacitive equipment based on LabVIEW. In the chamber, On-line tanδmeasurements of the capacitive transformer bushings were completed. The effects of environmental factors on tanδwere analyzed, and the curves between the tanδand the environment parameters were acquired. Then, a grey relational model to analyze the effects of main environmental factors on tanδwas built, and the grey relational grade between them was gained in this paper.

完成的主要工作和取得的主要研究成果如下：提出了全绝缘型人工气候室设计方案，计算分析了气候室内悬挂绝缘子和套管时的空间电场分布情况，并和金属材质气候室相比较，论证了该方案的优越性，据此方案研制的全绝缘人工气候室可调节温度、湿度和压力等参数，满足了人工气候试验的要求；开发了基于虚拟仪器技术的高压电容型设备绝缘特性自动测试系统，完成了人工气候室内变压器套管tanδ的在线测量试验，以此为基础分析了环境因素对电容型设备tanδ的影响情况，获得了tanδ与环境参数的关系曲线，建立了环境因素对tanδ影响的灰关联分析模型，得到了主要环境参数与电容型设备tanδ的灰关联度。

According the survey on students life habits, I found that several factors like fastening no seat-belt while taking on car、buying snacks from pedlars ,playing while wielding stationery constitute the major factors of unintentional injury.

在回顾性调查显示意外伤害的发生率为7.94%，远远大于疾病预防控制中心得到报告发生率。家长调查中，父母亲的文化程度、婚姻状况与本次调查的行为有着一定的影响。

Results According the survey on students life habits,I found that several factors like fastening no seat-belt while taking on car、buying snacks from pedlars,playing while wielding stationer constitute the major factors of unintentional injury.The two skills,namely swimming and riding a bike also pose potential threat to students' health.

结果 对学生的生活习惯的调查发现，学生中曾乘车不系安全带、购买流动摊贩食品、课间拿文具嬉闹分别占着相当高的比例；对学生两项技能的调查发现，游泳和骑车中，学生中仍存在着不少危险因素。

In the end-to-end path capacity measurement based on packet pair algorithm, there are some inference factors with effects on the measurement result, such as cross traffic, packet pathology and clock precision. The influence of these inference factors was discussed based on theoretical analysis and experiment data.

在理论分析和实验数据的基础上深入研究了基于包对技术的端到端路径容量测量中背景流量、数据包异常和时钟精度等因素对测量结果的影响，并利用模拟和测量的方法对包对的行为特征进行了定量分析。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。