scholarly journals Design, construction and quality control of resistive-Micromegas anode boards for the ATLAS experiment

2018 ◽  
Vol 174 ◽  
pp. 01013
Author(s):  
F. Kuger ◽  
P. Iengo
Keyword(s):  
Quality Control ◽  
Mass Production ◽  
Full Scale ◽  
Atlas Detector ◽  
Atlas Experiment ◽  
Construction Methods ◽  
Large Size ◽  
Control Procedures ◽  
Design Construction ◽  
Design And Construction

For the upcoming upgrade of the forward muon stations of the ATLAS detector, 1280m2 of Micromegas chambers have to be constructed. The industrialization of anode board production is an essential precondition. Design and construction methods of these boards have been optimized towards mass production. In parallel quality control procedures have been developed and established. The first set of large size Micromegas anode boards has finally been produced in industries and demonstrates the feasibility of the project on full-scale.

scholarly journals Mass production for mass customization: application of digital fabrication techniques on tower renewal

2021 ◽  
Author(s):  
Pamela Love
Keyword(s):  
Mass Production ◽  
Digital Fabrication ◽  
Architectural Form ◽  
High Rise ◽  
Construction Methods ◽  
Repetitive Nature ◽  
Form Representation ◽  
The Impact ◽  
Modern Technologies ◽  
Design And Construction

The opportunity to regain the essence of art and customization in architecture presents itself in a variety of ways if industry becomes open-minded about the potentials our modern technologies bestow. Despite the impact of digital technologies on architectural form, representation, production, and drawing methods, there has been very little innovation in the general flattened rectilinear form of the high-rise due to material innovation and construction methods that evolved out of rationalized techniques and modes of mass production. This thesis investigates ways to re-appropriate surface depth, curvilinear form, variety, and the composition of the high rise cladding by looking at ways that the conventional high-rise envelopes construction and its materials and methods can be manipulated using new design and construction methodologies that have evolved through digital techniques of design and production. The repetitive nature of tower design and the industrial nature of the construction process create an ideal opportunity for the reassessment of this process using post-fordist design and construction methods.

scholarly journals Mass production for mass customization: application of digital fabrication techniques on tower renewal

2021 ◽  
Author(s):  
Pamela Love
Keyword(s):  
Mass Production ◽  
Digital Fabrication ◽  
Architectural Form ◽  
High Rise ◽  
Construction Methods ◽  
Repetitive Nature ◽  
Form Representation ◽  
The Impact ◽  
Modern Technologies ◽  
Design And Construction

The opportunity to regain the essence of art and customization in architecture presents itself in a variety of ways if industry becomes open-minded about the potentials our modern technologies bestow. Despite the impact of digital technologies on architectural form, representation, production, and drawing methods, there has been very little innovation in the general flattened rectilinear form of the high-rise due to material innovation and construction methods that evolved out of rationalized techniques and modes of mass production. This thesis investigates ways to re-appropriate surface depth, curvilinear form, variety, and the composition of the high rise cladding by looking at ways that the conventional high-rise envelopes construction and its materials and methods can be manipulated using new design and construction methodologies that have evolved through digital techniques of design and production. The repetitive nature of tower design and the industrial nature of the construction process create an ideal opportunity for the reassessment of this process using post-fordist design and construction methods.

Studies and Application of Auger Monitoring System for Quality Control and Assurance of Al Bondpads

2016 ◽  
Author(s):  
Hua Younan
Keyword(s):  
Quality Control ◽  
Sample Preparation ◽  
Monitoring System ◽  
Failure Mechanisms ◽  
Wafer Fabrication ◽  
Contamination Level ◽  
Auger Analysis ◽  
Low Level ◽  
Monitoring Frequency ◽  
Control Procedures

Abstract In wafer fabrication (Fab), Fluorine (F) based gases are used for Al bondpad opening process. Thus, even on a regular Al bondpad, there exists a low level of F contamination. However, the F level has to be controlled at a lower level. If the F level is higher than the control/spec limits, it could cause F-induced corrosion and Al-F defects, resulting in pad discoloration and NSOP problems. In our previous studies [1-5], the theories, characteristics, chemical and physical failure mechanisms and the root causes of the F-induced corrosion and Al-F defects on Al bondpads have been studied. In this paper, we further study F-induced corrosion and propose to establish an Auger monitoring system so as to monitor the F contamination level on Al bondpads in wafer fabrication. Auger monitoring frequency, sample preparation, wafer life, Auger analysis points, control/spec limits and OOC/OOS quality control procedures are also discussed.

Advantages and Disadvantages of Nephelometric Measurement of Serum Lipids

1974 ◽  
Vol 20 (4) ◽  
pp. 502-504 ◽  
Author(s):  
Daniel M Baer
Keyword(s):  
Quality Control ◽  
Serum Lipids ◽  
Serum Triglyceride ◽  
Chemical Methods ◽  
Unstable Material ◽  
Advantages And Disadvantages ◽  
Control Procedures ◽  
Frequent Problem

Abstract Several technical difficulties diminish the usefulness of serum triglyceride estimation by the method of Stone and Thorp [Clin. Chim. Acta 14, 812 (1966)]. An artificial and somewhat unstable material is used in the standardization. Falsely elevated readings caused by scratched cuvettes are a frequent problem. Conventional quality-control procedures cannot be used because stable preparations are not available. Specimen stability is a greater problem than with conventional chemical methods. In spite of these difficulties, the method can be useful, if its limitations are recognized, in measurements made on nonfasting individuals.

Accuracy Analysis of Stewart Parallel Manipulator Based on Uniform Experiment Design

2012 ◽  
Vol 500 ◽  
pp. 715-720
Author(s):  
Jian Guang Li ◽  
Jian Ding ◽  
Huai Jing Jing ◽  
Ying Xue Yao
Keyword(s):  
Quality Control ◽  
Parallel Manipulator ◽  
Experiment Design ◽  
Regression Equations ◽  
Accuracy Analysis ◽  
Assembly Quality ◽  
Planning Approach ◽  
Control Procedures ◽  
Area Planning

Accuracy of the Stewart parallel manipulator is utmost important in assembly quality control procedures, and it's also difficult to demonstrate the inner relations quantitatively between errors of pose and of actuators. A novel methodology is proposed in this paper. Firstly the experiment area planning approach is proposed according to the pose and strut symmetries of the manipulator, and the uniform experiment design is conducted to investigate indexes of accuracy sensitivity. The regression equations are established to analyze the significance of various factors according to experiment results.

Quality control procedures for the resting electrocardiogram in the multiple risk factor intervention trial

1986 ◽  
Vol 7 (3) ◽  
pp. 46-65 ◽  
Author(s):  
Pentti M. Rautaharju ◽  
Steven K. Broste ◽  
Ronald J. Prineas ◽  
William J. Eifler ◽  
Richard S. Crow ◽  
...  
Keyword(s):  
Quality Control ◽  
Risk Factor ◽  
Multiple Risk Factor ◽  
Intervention Trial ◽  
Control Procedures ◽  
Multiple Risk
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