scholarly journals Entire product capability analysis chart with asymmetric tolerances index Spa

2020 ◽  
Vol 17 (6) ◽  
pp. 7605-7620
Author(s):  
Chun-Min Yu ◽  
◽  
Kun-Tzu Yu ◽  
Kuen-Suan Chen ◽  
◽  
...  
2020 ◽  
Vol 38 (6A) ◽  
pp. 910-916
Author(s):  
Sohaib Khlil ◽  
Huthaifa Al-Khazraji ◽  
Zina Alabacy

Process capability indices are a powerful tool used by quality control engineering to measure the degree to which the process is or is not meeting the requirements. This paper studies the application of process capability indices in the evaluation of a process with asymmetric tolerances. The analyzed collected data of the cleaning liquid “Zahi”, was used to investigate the ability of the filling process to meet the requested specifications. Matlab software was used to plot control charts, normal probability, and histogram of the data gathered from the production line and further performed statistical calculations. It was observed from the control charts that the filling process is under control. In addition, it was revealed by the process capability indices that the process of filling the cleaning liquid bottle is not fitted with the target value but it is adequate.


2012 ◽  
Vol 132 (8) ◽  
pp. 1376-1383 ◽  
Author(s):  
Kazuhiko Ogimoto ◽  
Kazuto Kataoka ◽  
Takashi Ikegami ◽  
Shunsuke Nonaka ◽  
Hitoshi Azuma ◽  
...  

2020 ◽  
Vol 855 ◽  
pp. 255-260
Author(s):  
Mukhtar Effendi ◽  
Efi Solihah ◽  
Candra Kurniawan ◽  
Wahyu Tri Cahyanto ◽  
Wahyu Widanarto

The synthesize of Nd3+-strontium hexaferrite magnetic material by the solid-state reaction method has been successfully carried out. This study aims to determine the effect of Nd3+ on the structure, magnetic properties, and microwave absorption capability of the material. Preparation of (1-x)SrO:xNd2O3:6Fe2O3 where x = 0, 10, 20, and 30 mol% using basic material in the form of SrCO3 powder, Nd2O3 powder and Fe3O4 from natural iron sand. The characterization includes the X-Ray Diffraction (XRD) examination to determine the crystal structure, the Scanning Electron Microscope (SEM) for exploring the surface morphology, Vibrating Sample Magnetometer (VSM) for the magnetic properties investigation of material, and Vector Network Analyzer (VNA) for microwave absorption capability analysis. The XRD results show that the addition of Nd3+ doping increases the number of SrNdFeO4 phases. The phase has a tetragonal crystal system that has cell parameters a = b = 3.846 Å, and c = 12.594 Å. The magnetic properties of the material showed that the addition of Nd3+ decreased the saturation and remanence magnetization values, whereas the value of the coercivity field increased. Meanwhile, the best microwave absorption occurs in samples with the addition of Nd3+ as much as 0.3 mol, which results in a reflection loss value of -18.9 dB with a frequency bandwidth of 3.9 GHz.


2010 ◽  
Vol 3 (S1) ◽  
pp. 531-534
Author(s):  
Maja Rujnić-Sokele ◽  
Mladen Šercer ◽  
Damir Godec

1979 ◽  
Vol 59 (4) ◽  
pp. 363-379 ◽  
Author(s):  
J. DUMANSKI ◽  
E. C. HUFFMAN ◽  
I. B. MARSHALL

A procedure is outlined for analyzing soil data for regional land use planning. Maps of basic land factor limitations are illustrated for the Ottawa urban fringe, and each map is evaluated for biological and nonbiological uses. The major land factors relative to urbanization are used along with other data to derive an urban "suitability" map. Results are compared to the regional development plan for the area.


2014 ◽  
Author(s):  
G Hepworth ◽  
◽  
K Slater ◽  
J Rodgers ◽  
S Harrison ◽  
...  

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