排序方式: 共有24条查询结果,搜索用时 15 毫秒
1.
For a determined mathematical model,it is not only necessary to obtain the estimates of parameters,but also their reliabilites.The present work deals with a sequential statistical design strategy for anexperimental program to obtain precise parameter estimetes for a nonlinear kinetic model.It aims at de-creasing the indeterminatness of the parameter estimates,in reducing the correlation between parameterestimates,and in inceasing the adequacy and accuracy of the model.The paper discusses the experimental design criterion for precise parameter estimates-the minimun vol-ume design criterion and the spherical shape design criterion,and the practical value of a sequential statis-tical design strategy.At last,an example was performed to precise estimate the parameters in the kinetic model of ammoniasynthesis reaction which was selected as being adequate in the previous work.Comparison of the results from the industrial unit and the corresponding values calculated with themodel using the estimates of parameters reveals the reasonable reliability of the model. 相似文献
2.
3.
4.
实验设计被誉为“工程师的钥匙”、“工程的催化剂”,近年来已愈来愈受到世界各国的重视。本文对实验设计与分析的基本原理及某些重要技术作扼要介绍。这些技术对于提高实验的有效性将具有一定的价值。 相似文献
5.
6.
7.
8.
9.
10.
<正> 随着社会生产力的发展,国际市场的商品竞争日益加剧,产品质量已引起人们的高度重视。产品质量成为衡量一个国家科学技术和经济发展水平的标志之一。提高产品质量是企业提高经济效益的关键。在保证和提高产品质量方面,质量技术得到迅速发展,质量工程已经发展成为一门新兴的学科,有一整套的理论和方法,其中质量控制图就是一种行之有效的科学方法。迄今为止,世界各国用得最广泛的质量控制图是休哈特(Shewhart)图。这种控制图 相似文献