Quality Control of Spur Gears on the Basis of Simulating Their Production Processes

Author(s):  
M. Kane
2016 ◽  
Vol 19 (3) ◽  
pp. 77-83 ◽  
Author(s):  
Miroslav Prístavka ◽  
Martina Kotorová ◽  
Radovan Savov

AbstractThe tools for quality management are used for quality improvement throughout the whole Europe and developed countries. Simple statistics are considered one of the most basic methods. The goal was to apply the simple statistical methods to practice and to solve problems by using them. Selected methods are used for processing the list of internal discrepancies within the organization, and for identification of the root cause of the problem and its appropriate solution. Seven basic quality tools are simple graphical tools, but very effective in solving problems related to quality. They are called essential because they are suitable for people with at least basic knowledge in statistics; therefore, they can be used to solve the vast majority of problems.


2019 ◽  
Vol 11 (18) ◽  
pp. 2435-2442 ◽  
Author(s):  
Jinchun Xie ◽  
Hongfu Yuan ◽  
Chunfeng Song ◽  
Xiangjun Yan ◽  
Hao Yan ◽  
...  

Melt flow rate (MFR) and vinyl acetate content (VAC) are the target parameters for quality control of poly(ethylene vinyl acetate) (EVA) pellets in production processes.


2017 ◽  
Vol 29 (4) ◽  
pp. 623-642 ◽  
Author(s):  
Zhenlu Chen ◽  
Rong Pan ◽  
Lirong Cui

Author(s):  
Vesna Jevremovć ◽  
Atif Avdović

Contemporary development of Statistical quality control includes researches on different control charts, which could be easily implemented in production processes due to facilities offered by computers. New control charts give more information about production processes than the conventional ones, that's why there is a lot of investigation in this area of applied statistics. In this paper, we shall explain some new ideas concerning the construction of control charts based on quantiles, empirical distribution function and p-value.


Author(s):  
José Vivaldo Machado Fernandes Júnior ◽  
Napiê Galvê Araújo Silva

The agribusiness honey has grown considerably in recent years from the high demand of society for natural products. Thus, the present work aims to analyze the supply chain of honey in the Associação Comunitária dos Agricultores Familiares do Perímetro Irrigado e Adjacências (ACAFPA) - Pau dos Ferros / RN.The type of research used to achieve the study is framed as exploratory, descriptive, documentary and case study. Concerning the nature of the data, the methods are qualitative and quantitative. The universe of study sets up a total of 16 members who actively participate in the activities of ACAFPA, and the value of the sample is 13 people. Defined as the collection instruments structured form, a standardized interview and direct observation and treatment of these data were made using descriptive statistics and content analysis. As a result, it was pointed out the improvement of beekeeping production system, due to the intervention of ACAFPA to promote the development of beekeeping, but realize that there are still limitations in the production chain. Finally, viewing, among other factors, the need to improve the applicant partners through courses and that measures are taken to enable the standardization of production processes and quality control of honey.


1998 ◽  
Vol 40 (5) ◽  
pp. 295-299 ◽  
Author(s):  
Yeda L. NOGUEIRA

We evaluated the components of the Fuenzalida-Palacios antirabies vaccine, which is till used in most developing countries in human immunization for treatment and prophylaxis. This vaccine is prepared from newborn mouse brains at 1% concentration. Even though the vaccine is considered to have a low myelin content, it is not fully free of myelin or of other undesirable components that might trigger adverse effects after vaccination. The most severe effect is a post-vaccination neuroparalytic accident associated with Guillain-Barré syndrome. In the present study we demonstrate how the vaccines produced and distributed by different laboratories show different component patterns with different degrees of impurity and with varying protein concentrations, indicating that production processes can vary from one laboratory to another. These differences, which could be resolved using a better quality control process, may affect and impair immunization, with consequent risks and adverse effects after vaccination. We used crossed immunoelectrophoresis to evaluate and demonstrate the possibility of quality control in vaccine production, reducing the risk factors possibly involved in these immunizing products.


Sign in / Sign up

Export Citation Format

Share Document