Vision-Based Inspection Approach Using a Projector-Camera System for Off-Site Quality Control in Modular Construction: Experimental Investigation on Operational Conditions

2021 ◽  
Vol 35 (5) ◽  
pp. 04021012
Author(s):  
JuHyeon Bae ◽  
SangUk Han
Keyword(s):  
Experimental Investigation ◽  
Quality Control ◽  
Site Quality ◽  
Modular Construction ◽  
Camera System ◽  
Operational Conditions

Field-Applied Computerized Tracking System: A Practical Approach to On-Site Quality Control

1991 ◽  
Vol 3 (05) ◽  
pp. 22-28
Author(s):  
D.L. Purvis ◽  
R.J. Novotny ◽  
B.T. Carlson
Keyword(s):  
Quality Control ◽  
Tracking System ◽  
Practical Approach ◽  
Site Quality ◽  
System A

scholarly journals On-site Quality Control of Photovoltaic Modules with the PV MOBILE LAB

2014 ◽  
Vol 57 ◽  
pp. 89-98 ◽  
Author(s):  
Jorge Coello ◽  
Leonardo Pérez ◽  
Francisco Domínguez ◽  
Miguel Navarrete
Keyword(s):  
Quality Control ◽  
Site Quality ◽  
Photovoltaic Modules

Water Quality Controls in Construction

2006 ◽  
Author(s):  
Claude J. Wookey
Keyword(s):  
Water Quality ◽  
Quality Control ◽  
Human Exposure ◽  
Water Discharge ◽  
The United States ◽  
Site Quality ◽  
Construction Sites ◽  
Water Quality Control ◽  
Preventative Measure ◽  
A Site

Water Quality control for construction sites is a requirement at any site within the United States. Erosion Controls are the first, and many times, last preventative measure for water discharge from a site. If these fail, streams, wetlands, or even off-site upland areas (yards, etc.) are adversely affected. Site quality is affected when valuable soil is lost and restoration requires replacement. Human exposure to contaminants, violation of governmental regulations, contractor reputation, and the overall economics involved in construction are at risk.

Experimental investigation of the quality control of fluidized beds

1986 ◽  
Vol 46 (1) ◽  
pp. 77-80 ◽  
Author(s):  
P.L. Lee ◽  
Yat-On Chong ◽  
L.S. Leung
Keyword(s):  
Experimental Investigation ◽  
Quality Control ◽  
Fluidized Beds

scholarly journals Colorimetric Point-of-Care Detection of Clostridium tyrobutyricum Spores in Milk Samples

Biosensors ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 293
Author(s):  
Paola Cecere ◽  
Francesca Gatto ◽  
Claudia Cortimiglia ◽  
Daniela Bassi ◽  
Franco Lucchini ◽  
...  
Keyword(s):  
Quality Control ◽  
Dna Extraction ◽  
Limit Of Detection ◽  
Point Of Care ◽  
Raw Milk ◽  
Site Quality ◽  
Contamination Level ◽  
Clostridium Tyrobutyricum ◽  
Milk Samples ◽  
Point Of Care Detection

Clostridium tyrobutyricum represents the main spoiling agent responsible for late blowing defects (LBD) in hard and semi-hard cheeses. Its spores are resistant to manufacturing procedures and can germinate during the long ripening process, causing the burst of the cheese paste with a consequent undesirable taste. The lower quality of blown cheeses leads to considerable financial losses for the producers. The early identification of spore contaminations in raw milk samples thus assumes a pivotal role in industrial quality control. Herein, we developed a point of care (POC) testing method for the sensitive detection of C. tyrobutyricum in milk samples, combining fast DNA extraction (with no purification steps) with a robust colorimetric loop-mediated isothermal amplification (LAMP) technique. Our approach allows for the sensitive and specific detection of C. tyrobutyricum spores (limit of detection, LoD: ~2 spores/mL), with the advantage of a clear naked-eye visualization of the results and a potential semi-quantitative discrimination of the contamination level. In addition, we demonstrated the feasibility of this strategy using a portable battery-operated device that allowed both DNA extraction and amplification steps, proving its potential for on-site quality control applications without the requirement of sophisticated instrumentation and trained personnel.

Electrochemical Defect Analysis (EC-D) of Additive Manufactured Components

2021 ◽  
Author(s):  
Florian Sous ◽  
Tim Herrig ◽  
Thomas Bergs ◽  
Florian Karges ◽  
Nicole Feiling ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Quality Control ◽  
Additive Manufacturing ◽  
Electrochemical Machining ◽  
Layer By Layer ◽  
Defect Analysis ◽  
Test Rig ◽  
Camera System ◽  
X Ray ◽  
Manufacturing Technologies

Abstract Due to more freedom in design and flexibility in production, parts produced by additive manufacturing technologies (AM) offer a huge potential for the manufacture of turbomachinery components. Because of the layer by layer built structure, internal defects like cracks or gaseous pores can occur. These defects considerably reduce the mechanical properties and increase the importance of quality control, especially in the field of turbomachinery. Therefore, in this study, an electrochemical defect analysis (EC-D) of additive manufactured components is introduced, performed and validated in comparison to a nondestructive X-ray testing of the same part. A test rig was developed, which allows an alternation between electrochemical machining and subsequent optical documentation of each removed layer. The documentation of the surface and the macroscopic defects in the AM-parts are captured by an integrated camera system.

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