Prüfanlagenqualifikation - on-line mit statistischen Methoden / Testing device qualification - on-line with statistical methods / Qualification des systéms d’essai - on-line avec méthodes statistique

Statistical methods of analysis are currently widely used to develop control and monitoring systems for different welding processes. These methods allow to obtain information about the process including effect of all factors on its results, which is often difficult to evaluate due to the complexity of the process. The authors made efforts to apply these methods to develop the system for monitoring the parameters of flash-butt welding in real-time mode. The paper gives brief information about the features of flash-butt welding of reinforcement bars and some basic limitation of this process application. The main reasons of formation of defects in welded joints are given as well as analysis of possibility of application of monitoring systems for their determination. The on-line monitoring system based on neural networks was developed for evaluation of process deviations. This system is believed to be adequate for determination of process violations resulting in disturbances of welding parameter and can be used for prediction of possible defects in the welded joints.

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Design and realization of on-line testing device of portable photoelectric tracking system

Journal of Applied Optics ◽

10.5768/jao201839.0201005 ◽

2018 ◽

Vol 39 (2) ◽

pp. 24-28

Author(s):

Zhang Baoyi ◽

Mu Wei ◽

Wang Hu ◽

Yao Linhai ◽

Liu Tong

Keyword(s):

Tracking System ◽

Testing Device ◽

On Line

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On-line firmness sensing of dates using a non-destructive impact testing device

Biosystems Engineering ◽

10.1016/j.biosystemseng.2014.10.012 ◽

2015 ◽

Vol 129 ◽

pp. 288-297 ◽

Cited By ~ 6

Author(s):

Seyed Ahmad Mireei ◽

Morteza Sadeghi ◽

Alireza Heidari ◽

Abbas Hemmat

Keyword(s):

Impact Testing ◽

Testing Device ◽

On Line ◽

Non Destructive

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Combination of neural network and statistical methods for sensory evalution of biological products: On-line beauty selection of flowers

New Trends in Neural Computation - Lecture Notes in Computer Science ◽

10.1007/3-540-56798-4_228 ◽

1993 ◽

pp. 726-731 ◽

Cited By ~ 1

Author(s):

F. Ros ◽

A. Brons ◽

F. Sevila ◽

G. Rabatel ◽

C. Touzet

Keyword(s):

Neural Network ◽

Statistical Methods ◽

Biological Products ◽

On Line ◽

Selection Of

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Training in-service teachers: study of questions and the organization of teachingFormation des enseignants en service: étude des questions et organisation de l'enseignement

Educação Matemática Pesquisa Revista do Programa de Estudos Pós-Graduados em Educação Matemática ◽

10.23925/1983-3156.2020v22i4p742-755 ◽

2020 ◽

Vol 22 (4) ◽

pp. 742-755

Author(s):

Maria Rita Otero ◽

Viviana Carolina Llanos ◽

Veronica Parra

Keyword(s):

Statistical Methods ◽

Training Study ◽

Didactique Des Mathématiques ◽

Written Texts ◽

On Line ◽

Teachers Training ◽

Didactics Of Mathematics

AbstractWe analyse the study and research carried out by N = 31 teachers in service during an on-line course in Didactics of Mathematics, about a question that could generate a Study and research path (SRP). The teachers studied the question individually and in groups. Then, they had to organize a possible teaching, adapted to an institution well known to them .The written texts produced by the teachers are analysed by means of two types of techniques: one qualitative and one based on lexicometric statistical methods. In the long term, the aim of this research is to understand the potential and difficulties of in-service teachers to organize teaching based on questions.Keywords: Teachers training; Study and research pathsRésuméNous analysons l'étude et la recherche menées par N = 31 enseignants en service lors d'un cours en ligne sur la didactique des mathématiques, autour d'une question qui pourrait générer un PER. Les enseignants étudient la question individuellement et en groupe, puis il est proposé d'organiser un possible enseignement adapté à une institution bien connue par les enseignants, sur la base de la question étudiée. Les textes écrits produits par les enseignants sont analysés en utilisant deux types de techniques: une qualitative et l'autre basée sur des méthodes statistiques lexico métriques. Dans le long terme, cette recherche essaie de comprendre le potentiel et les difficultés des enseignants pendant l'organisation d'un enseignement basé sur des questions.Mots clés: Formation des enseignants; Parcours d'études et de recherche.

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