Quality Control of the Concrete of the Supporting Structure of Bridge Reg. No. 333-003 over the Elbe in Přelouč

2018 ◽  
Vol 760 ◽  
pp. 278-285
Author(s):  
Stanislav Řeháček ◽  
David Čítek ◽  
Jiří Kolísko
Keyword(s):  
Quality Control ◽  
Compression Strength ◽  
Visual Inspection ◽  
The State ◽  
Supporting Structure ◽  
Concrete Carbonation

This paper is introducing results of diagnostic survey of bridge reg. No. 333-003 over the Elbe in Přelouč [1], which included an evaluation of the previous reconstruction carried out in the 1990s [2, 3] and the quality control of the concrete used in the construction after more than 90 years of operation. Visual inspection, comparison of depth of concrete carbonation and thickness of top layer of reinforcement concrete and concrete compression strength are presented in this paper. This paper come into existence with cooperation with the state-funded organization Road Administration and Maintenance of the Pardubice Region.

Assessment of Concrete Quality of Load-Bearing Structure of the Bridge across Otava River No. 121-006 near Zvikov after Fifty Years of Operation in Severe Environmental Conditions

2016 ◽  
Vol 722 ◽  
pp. 72-78 ◽  
Author(s):  
Stanislav Rehacek ◽  
David Čítek ◽  
Jiri Kolisko ◽  
Petr Huňka
Keyword(s):  
Compression Strength ◽  
Environmental Conditions ◽  
Visual Inspection ◽  
Load Bearing ◽  
Concrete Carbonation ◽  
Concrete Mix ◽  
Concrete Quality ◽  
Bearing Structure

This paper is introducing results of diagnostic survey of bridge no. 121-006 across Otava river near Zvikov [1], focusing on assessment of quality of concrete mix used for load-bearing structure of the bridge after more than 50 years of operation and assessment of reconstruction works (monolithic assembly of central joints of main fields) executed in 1994 [2]. Visual inspection of monolithic assembly joints, comparison of depth of concrete carbonation and thickness of top layer of reinforcement concrete and concrete compression strength are presented in this paper.

Performance-based assessment of Nahr Al-Fidar bridge

2019 ◽  
Author(s):  
Nisrine Makhoul
Keyword(s):  
Quality Control ◽  
Service Life ◽  
Performance Indicators ◽  
Visual Inspection ◽  
Visual Assessment ◽  
Economic Losses ◽  
Performance Goals ◽  
Control Plan ◽  
Performance Based Assessment ◽  
Bridge Reconstruction

<p>Nahr Al-Fidar Bridge is in Fidar village, which is located near Byblos City, Lebanon. The bridge reconstruction was carried out swiftly during 2006-2007, due to its importance as a vital commercial artery. Indeed, no traffic disruption is allowed on the bridge, since it leads to great economic losses. At the time being, even though the bridge has only accomplished about 10 years of its service life, it is being overloaded.</p><p>The paper aims to assess the performance of Nahr Al-Fidar bridge. To that purpose, first, the case bridge is introduced, and a visual inspection took place to identify current the state of the bridge. Second, the performance indicators are evaluated for this bridge, by means of the visual assessment, and the key performance indicators are assessed. The aim is to check if the bridge meets the pre-specified performance goals. Finally, a quality control plan is implemented for Nahr Al-Fidar bridge.</p>

scholarly journals Using 5W-1H and 4M Methods to Analyse and Solve the Problem with the Visual Inspection Process - case study

2018 ◽  
Vol 183 ◽  
pp. 03006 ◽  
Author(s):  
Krzysztof Knop ◽  
Krzysztof Mielczarek
Keyword(s):  
Quality Control ◽  
Research Methodology ◽  
Visual Inspection ◽  
Problem Analysis ◽  
Effective Solution ◽  
Pragmatic Approach ◽  
Electric Device ◽  
Inspection Process

The article presents a case study on the use of specially prepared 5W-1H and 4M sheets for the analysis of the problem during the visual inspection process of the electric device, in order to solve it. The identified problem was related to inconsistent assessments during the visual (alternative) inspection of chamber gaps of the electric switch. The research methodology was presented the same as results confirming the effectiveness of the problem analysis in the area of quality control by using these two methods of Lean and WCM concepts. The article aimed to show that a skilful and pragmatic approach to the problem supported by appropriate tools can contribute to its effective solution.

Automated visual inspection stations for next-generation semiconductor package quality control

1996 ◽  
Author(s):  
Mark R. DeYong ◽  
Thomas C. Eskridge ◽  
John W. Grace ◽  
Jeff E. Newberry ◽  
J. H. Jones ◽  
...  
Keyword(s):  
Quality Control ◽  
Visual Inspection ◽  
Next Generation ◽  
Automated Visual Inspection

scholarly journals Visual QC Protocol for FreeSurfer Cortical Parcellations from Anatomical MRI

2020 ◽  
Author(s):  
Pradeep Reddy Raamana ◽  
Athena Theyers ◽  
Tharushan Selliah ◽  
Piali Bhati ◽  
Stephen R. Arnott ◽  
...  
Keyword(s):  
Quality Control ◽  
Open Source ◽  
Error Detection ◽  
Detection Rate ◽  
Visual Inspection ◽  
Visual Quality ◽  
Open Source Tool ◽  
Neuroimaging Data ◽  
Anatomical Mri ◽  
Error Detection Rate

AbstractQuality control of morphometric neuroimaging data is essential to improve reproducibility. Owing to the complexity of neuroimaging data and subsequently the interpretation of their results, visual inspection by trained raters is the most reliable way to perform quality control. Here, we present a protocol for visual quality control of the anatomical accuracy of FreeSurfer parcellations, based on an easy to use open source tool called VisualQC. We comprehensively evaluate its utility in terms of error detection rate and inter-rater reliability on two large multi-site datasets, and discuss site differences in error patterns. This evaluation shows that VisualQC is a practically viable protocol for community adoption.

scholarly journals QUALITY CONTROL OF CERAMIC TILES FOR ASSESSME NT OF THE STATE OF THE PRODUCTION PROCESS

2021 ◽  
Vol 57 (2) ◽  
pp. 137-143
Author(s):  
A.S. Nurbay ◽  
Keyword(s):  
Quality Control ◽  
Production Process ◽  
The State ◽  
Ceramic Tiles

Керамикалық еден плиткаларының сапасын зерттеу мәселесі әлі де ашық сұрақтардың бірі. Олардың беріктігі және нәтижесінде мүмкін болатын қолдану аясы керамикалық композиттің құрамына да, оның біркелкілік дәрежесіне де байланысты. Керамикалық плитка электр тоғын өткізбейді, химиялық заттармен байланыста болған кезде дерлік жойылуға жатпайды, күннің әсерінен түс өзгертпейді. Керамикалық плитка микробтардың ұзақ уақыт бойы өмір сүре алмайтын ең гигиеналық материалдардың бірі болып табылады. Плитканың беріктігін бақылау әдісі әртүрлі көлденең қималарда осы белгіні бағалауға негізделуі керек. Мұндай өлшеулер өте маңызды, өйткені олардың механикалық қасиеттері көбінесе бүкіл плита бетінде біркелкі болмайды. Стандартты бақылау сынақтары бұл талапқа сәйкес келмейді, өйткені олар тек орташа көлденең қимада бұзылатын беріктікке арналған сынақтарды ұсынады. Ультрадыбыстық әдісті қолдану керамикалық композиттің плиткадағы біркелкілігін оңай бағалауға мүмкіндік береді. Материалдың кедергісі бойынша тікелей нәтижелерді түрлендіру өлшеу құралын масштабтауды қажет етеді, бұл зерттеу саласын едәуір кеңейтеді, бірақ қарсылық параметрлері әрдайым қажет емес. Кілт сөздер: керамикалық плитка, ультрадыбыс, гигиеналық материал, композит

scholarly journals Food Science from the Perspective of the Nutrition Professional

2020 ◽  
Vol 8 (2) ◽  
pp. 160-166
Author(s):  
Luis Henrique Almeida Castro ◽  
Diego Bezerra de Souza ◽  
Geanlucas Mendes Monteiro ◽  
Gildiney Penaves de Alencar ◽  
João Vitor Alves dos Santos ◽  
...  
Keyword(s):  
Quality Control ◽  
Data Collection ◽  
Nutritional Value ◽  
The State ◽  
Environmental Knowledge ◽  
Raw Material ◽  
Food Science ◽  
Data Collection Tool ◽  
Mato Grosso ◽  
Mato Grosso Do Sul

This work had as thematic the study in analysis of foods from the perspective of the nutrition professional. The objective of the research was to seek the training of this professional for the then analysis of the performance in quality control and formulation of products, with the perspective of assistance to projects carried out on site. This research was conducted in a community cafeteria located in a university in the interior of the State of Mato Grosso do Sul - Brazil. As a data collection tool, preparation technical sheets were used in which costs were collected, the preparation order, and the nutritional value provided. Sensory observation was used as an analysis of the data in order to measure and analyze and interpret the reactions of food and material characteristics. It appears that with the identification, attributions and activities developed by a nutritionist in the area, it became possible to analyze the processing of raw material and industrialized food products, according to the needs presented by the site. As for the points not reached were not due to any other factors than those related to the specificities of the research site, which did not prevent the acquisition of theoretical, practical, scientific, social and environmental knowledge of the points concerning the area of action of the nutritionist professional within the field of food science.

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