查询词典 experiments

The optimal chitinase fermentation conditions of strain SWCH-6 were conformed by single-factor experiments and orthogonal experiments, they were colloidal chitin 25.0 g/L, tryptone 10.0 g/L, seawater 1 L, pH 8.5, 32℃, 150 r/min for 72 h.

采用单因素优化方法结合正交实验，得到菌株SWCH-6产几丁质酶的最佳发酵条件：胶体几丁质25.0 g/L，胰蛋白胨10.0 g/L，陈海水1.0 L， pH 8.5， 32℃， 150 r/min培养72 h；在该条件下酶活力达0.39 U/mL。

Based on the numeric monitoring and diagnosis system for 6L16/24 typemarine diesel engine, the instantaneous angular speed and the cylinder pressure areapplied to the monitoring and diagnosing of the marine diesel engine through theartificial faults experiments in laboratory. The experiments results show that theintegrated motheds both the instantaneous angular speed and the cylinder pressurecan effectively diagnose the underpower fault of single cylinder, and detects whichcylinder occurs.

5利用船舶柴油机数字化监测诊断系统平台，进行了船舶柴油机瞬时转速和示功图法监测诊断的故障模拟试验研究，研究结果表明：瞬时转速法和示功图法可有效诊断柴油机单缸功率不足的故障，并可定位到故障缸。

The following results were found in the experiments: in pot experiments the diurnal variation of net photosynthetic rateof Lianmeng and Duizhao presented a single-peak curve, and the maximum value occurred at about 12:30, the diurnal variation of net photosynthetic rate of Changlongjie was unregular, the photosynthetic capacity of three treatments from high to low was Lianmeng ＞ Duizhao＞ Changlongjie, heavy metals stress had an inhibitory effect on photosynthesis of plant; There was a significant positive correlation between stomatal conductance and transpiration rate during the diurnal variation(Lianmeng 0.981**, Changlongjie 0.829*, Duizhao 0.87*).

结果表明：在白玉兰盆栽试验中，联盟和对照的Pn日变化呈&单峰型&曲线，峰值都出现在12：30左右，长龙界的Pn日变化无规律，3个处理的光合能力为联盟＞对照＞长龙界，重金属胁迫对植物的光合有抑制作用。

For contrast experiments, k-means and DBSCAN algorithms are also implemented using Visual C++ 6. 0. We conducted a series of experiments, including the experiment of the correctness of clustering and outlier detection, the experiment of the precision of clustering and outlier detection. The experiment of the runtime, the experiment of the effect of clustering and outlier detection on parameters, the experiment of the impact of clustering and outlier detection precision by the order of data input, and the experiment of the effect of the algorithm validness by the density character of dataset.

本文使用Visual C++ 6.0实现了基于距离的聚类和孤立点检测算法、k-means算法和DBSCAN算法，做了大量的对比实验，包括聚类算法和孤立点检测正确性实验；聚类算法和孤立点检测精度实验；算法执行时间实验；参数对聚类和孤立点检测结果的影响实验；数据输入顺序对算法聚类和孤立点精度的影响实验；数据集密度对算法有效性的影响等。

Ground on the actual conditions of CAI, CSE and physical experiment teaching in our country, a new-style simulant physical experiment-teaching mode that based on independent instruments and components is offered in this paper. This mode is devised according to the essential CAI educational theory-the Constructivism also. The most distinct advantage of this mode is, with enough simulant instruments and components, students can not only implement experiments according to the textbooks, but also design and carry out new experiments by themselves. Students experiment interest can be activized and their creative thinking and competence can be improved.

本文在分析了我国计算机辅助教学、计算机仿真实验和物理实验教学现状的基础上，根据计算机辅助教学的基本教育理论-建构主义，提出了一种全新的仿真物理实验开发模式-基于仪器和元器件的开发模式，指出了其最突出的特点，即在提供充足的实验仪器和元器件的基础上，学生不仅可以按照教材上的实验方案，也可以自己设计实验方案进行实验，甚至还可以自己设计并实施新实验，从而充分调动学生的学习兴趣，并由对仿真实验的兴趣过渡到对实物实验的兴趣，以弥补我国学生实验条件差、实践机会少的缺陷，培养他们的动手能力和创新能力。

For preparing for the researches of text digital watermarking and advantaging other researchers" development when using the Chinese mathematical expression theory, this paper designs and realizes a development platform of Chinese mathematical expression. It has been proved by experiments that the platform"s function, execution speed and stability can satisfy the requirements of conversion and operation of enormous data.This research found out that the structure information of Chinese have plenty redundant information that can be used by the Chinese mathematical expression for the digital watermarking, the data embedded can possess better robustness. Based on this finding, this paper designs a kind of text digital watermarking method of embedding watermarking by using Chinese structure, and realizes the method by using the Chinese mathematical expression platform.Considering the watermarking embedding algorithms importance to the robustness of the text digital watermarking, this paper makes fully use of the advantage of the Chinese mathematical expression theory to design a kind of layered text method, which has being realized by using the Chinese mathematical expression platform. The layered text method can handle the text as a solid structure, and the embedding data havepreferable robustness.Finally, based on the researches of the text digital watermarking method and the text layered method, this paper integrates the method of making use of the Chinese structure embedding watermarking with the robust algorithm based on text layered, and realizes a brand-new text digital watermarking method. Proved by lots of experiments, this brand-new method has good robustness and better invisibility.

为了为研究工作做准备和方便其他使用汉字数学表达式理论体系的人进行开发，本文基于汉字数学表达式理论设计实现了一个汉字数学表达式平台，实现了Unicode汉字集中的汉字、汉字数学表达式、汉字的Unicode码之间的相互转化、依据汉字数学表达式提取汉字的结构信息、由汉字数学表达式在非中文平台上不依赖字库显示汉字的图像等功能，使用复合文档技术和流压缩技术进行数据的存储，使用对汉字数学表达式进行二叉树拆分来处理汉字数学表达式中包含的信息，使用自定义哈希函数来提高运行速度，实验证明，该平台功能、速度和稳定性完全能满足大量数据的转化和运算要求；通过研究表明汉字的结构信息中存在大量可使用汉字数学表达式理论加以利用的水印加载空间，加载在该空间的数据可以具有较好的鲁棒性，基于此，本文设计了一种利用汉字结构加载水印的文本数字水印方法，并使用汉字数学表达式平台将其实现；由于水印嵌入算法对于文本数字水印的鲁棒性至关重要，本文充分利用汉字数学表达式理论的优点，设计了一种文本分层的方法，并使用汉字数学表达式平台将其实现，使文本成为一个立体的空间，使嵌入在其中的数据具有更好的鲁棒性；最后在基于汉字数学表达式的文本数字水印嵌入方法的研究和基于汉字数学表达式的文本分层方法的研究的基础上，结合利用汉字结构嵌入水印的方法和基于文本分层的抗攻击文本水印嵌入算法实现了一种全新的文本数字水印方法，经实验证明，该方法有良好的鲁棒性和较好的隐蔽性。

The anatomizing extrudes experiments and error experiments make the experiment teaching not only remain a simple material processing, but also make the students further understand the extrude structure, principle and technique.

分析了原反应挤出实验的不足之处，通过增加解剖挤出机和错误实验，使实验教学不仅仅停留在简单的材料加工上，而且使学生对挤出机的结构、工作原理、工艺以及聚合物的改性有更深刻的理解，从而提高了学生的动手能力，创新能力和解决问题能力。

Seven experiments were conducted, including system setting, software parameters, hardware environment, tolerance noising, dynamic adjustment, spatial and temporal as well as other related experiments.

我们设计七大项实验包含「系统设定实验」、「软体参数实验」、「硬体环境实验」、「容错干扰实验」、「动态环境实验」、「时间与工作量实验」及「其他相关实验」。

This thesis mainly includes the following aspects: systematical introduction to environmental protection textile and garment products consciousness and opinions as well asstandards, and introduction and analysis of main environmental protection textile and garment products in the world at present; experiments on testing the wearing properties such as appearing shape, wet comfort, and wear-resistance and so on ,of various Tencel, Modal and cotton knitted fabrics and then analyzing and evaluating these wearing properties so as to get all factors influencing their wearing properties through contrasting different fabrics; by clustering analysis processing and analyzing data from experiments ,in order to evaluate wearing properties of Tencel and Modal fabrics and gain further conclusions; working out a detailed practical scheme for S company to develop environmental protection knitted garment products , analyzing the necessity and feasibility to develop such products, purling forward schemes in developing products and carrying out brand strategy and estimating their economic benefits.

为此，本文主要进行了以下工作：系统阐述了环保纺织服装产品的理念、标准并对目前国内外主要环保纺织服装产品进行评述和分析；实验测试不同种类的天丝、莫代尔和棉等针织物的外观形态、舒适性、耐用性等三方面的服用性能，对天丝和莫代尔针织织物的各项服用性能进行分析评价，并从不同织物性能差异的分析比较中得出影响该类织物服用性能的各项指标；采用数理统计中的聚类分析方法对实验测定的织物各项服用性能的数据结果进行处理和分析，将各项测试结果综合考虑，以评价天丝莫代尔织物的综合服用性能；对国内著名服装企业S公司开发该类环保面料的针织服装产品具体实施方案进行了研究，分析企业开发该类新型服装产品的必要性和可行性，初步设计提出了企业产品开发和品牌操作方案并对该方案的经济效益进行了预测分析。

The research shows that the percent recovery of natural gas and condensate oil in core experiments are larger than one in PVT experiments; the real relative permeability curves have a significant effect on the percent recovery;. retrograded condensate oil of lower condensate oil system can not second evaporate reciprocally in low permeability cores.

研究表明，岩心衰竭实验比PVT筒中凝析油、气采收率高；相渗曲线对凝析气藏的采收率影响较大；低凝析油含量体系在低渗岩心中凝析油析出后再蒸发困难。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。