minitab的使⽤教材
第⼀节计量值控制图应⽤案例
⼀、Xbar-R控制图应⽤案例
某公司SPC⼩组对A产品注塑过程的⼀个关键尺⼨的分布离散过⼤的问题进⾏改进,在控制阶段,他们选⽤了X-R控制图对该尺⼨进⾏监控,应⽤流程如下:1.确定需要控制的过程:
本例选定的需控制过程为A产品注塑成型过程。2.确定需控制的项⽬:
A产品的⼀个关键尺⼨规格为5.50+0.05mm
3.定义测量系统:
因为该过程采⽤3班⽣产,因此项⽬组确定的测量系统为3班各⼀位检验员,共⽤同⼀把卡尺,及各班⽣产的产品.4.量测系统分析:
经⼩组分析认为该测量系统可接受5.消除明显过程偏差
经过⼩组DMAI各阶段已将注塑成型过程的偏差降⾄最低6.确定抽样数及频率
每⼩时⼀次,每次5PCS
抽取样本数如下表:
表17.计算控制界限:
(1)计算X和Rbar
X=5.501 Rbar=0.031
(2)计算X bar图控制界限:
UCL=X+A2 R bar =5.501+0.58×0.031=5.519
LCL=X-A2 R bar =5.5.01-0.58×0.03=5.483
CL= X=5.501
(3)计算R图控制界限:
UCL=D4 R bar =2.11×0.031=0.065
LCL= D3 R bar (⽆)
CL=R bar =0.031
8.根据作图:
图,根据准则未发现异常.9.分析R
bar
10分析X
图:异常总结如下:bar
(1)第6、10、11、26、超过控制界限
(2)第3、7、27、28点排列呈⼀定的规律性，因为在这些点上，连续3个点中中⼼线⼀侧有2点超过2ó，即
靠近控制界限的点太多。11、计算过程能⼒：因为处于⾮受控状态，故⽆法计算过程能⼒。
12、Minitab在作X bar-R图中的运⽤：步骤如下：
第⼀步：将表中的数据输⼊Minitab⼯作表中如下图：（图1-1）
第⼆步：在minitab的下拉菜单中选择stat>control charts>Xbar-R,格⼯如下图
Protein
Purification
Handbook
18-1132-29
Edition ACProtein Purification –
Handbook
Antibody Purification
Handbook18-1037-46
The Recombinant Protein Handbook
Protein Amplification and Simple Purification18-1142-75
Protein Purification
Handbook18-1132-29
Ion Exchange Chromatography
Principles and Methods18-1114-21
Affinity Chromatography
Principles and Methods18-1022-29
Hydrophobic Interaction Chromatography
Principles and Methods18-1020-90
Gel Filtration
Principles and Methods18-1022-18Handbooks
from Amersham Biosciences
Reversed Phase Chromatography
Principles and Methods18-1134-16
Expanded Bed Adsorption
Principles and Methods18-1124-26
Chromatofocusing
with Polybuffer and PBE18-1009-07
Microcarrier cell culture
Principles and Methods18-1140-62Protein
Purification
HandbookContents
Introduction........................................................................................................5
HANDBOOK OF SNOW
PRINCIPLES, PROCESSES,
MANAGEMENT & USE
Edited by
D. M. Gray
D. H. Male
Division of Hydrology,
University of Saskatchewan,
Saskatoon, Canada.
PERGAMON PRESS
Toronto • Oxford • New York • Sydney • Paris • Frankfurt
CONTENTS
List of Contributors
Preface
PARTI
SNOW AND THE ENVIRONMENT
1 SNOW AND LIVING THINGS
Section 1: SNOW AND MAN - G.A. McKAY;
Section 2: SNOW: PLANTS AND ANIMALS - W.P. ADAMS
Snow and Man
Adapting to Snow
Vulnerability
Construction
Transportation
Resource use
Snow: Plants and Animals
Falling, Blowing and Intercepted Snow
Snowcover
Acknowledgements
References
2 SNOW AND CLIMATE - M.O. BERRY
Effects of Snowcover on the Atmosphere
Energy budget
Air mass formation and weather Systems
Global climate
Effects of snowcover on other weather elements
Snowcover and the Layer Below
Thermal regime of the ground
Frost and permafrost
Volume 1
Edited by: Zvi Griliches and Michael D. Intriligator
Preface - Zvi Griliches and Michael D. Intriligator
Part 1 - Mathematical and Statistical Methods in Econometrics
Chapters
1. Linear Algebra and Matrix Methods in Econometrics - Henri Theil
2. Statistical Theory and Econometrics - Arnold Zellner
Part 2 - Econometric Models
Chapters
3. Economic and Econometric Models - Michael D. Intriligator
4. Identification - Cheng Hsiao
5. Model Choice and Specification Analysis - Edward E. Leamer
Part 3 - Estimation and Computation
Chapters
6. Non-linear Regression Models - Takeshi Amemiya
7. Specification and Estimation of Simultaneous Equation Models - Jerry A. Hausman
8. Exact Small Sample Theory in the Simultaneous Equations Model - P. C. B. Phillips
9. Bayesian Analysis of Simultaneous Equation Systems - Jacques H. Drèze and Jean-François
