scholarly journals Experimental characterization of particle distribution during the process of reducing the air supply volume in an electronic industry cleanroom

2021 ◽  
pp. 103594
Author(s):  
Xiaoliang Shao ◽  
Yunfeng Hao ◽  
Shukui Liang ◽  
Huan Wang ◽  
Yu Liu ◽  
...  
Keyword(s):  
Particle Distribution ◽  
Experimental Characterization ◽  
Electronic Industry ◽  
Air Supply

scholarly journals Implementation of a Ventilation Protocol for SARS-CoV-2 in a Higher Educational Centre

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6172
Author(s):  
Alberto Meiss ◽  
Irene Poza-Casado ◽  
Alfredo Llorente-Álvarez ◽  
Héctor Jimeno-Merino ◽  
Miguel Ángel Padilla-Marcos
Keyword(s):  
Natural Ventilation ◽  
Co2 Concentration ◽  
Dominant Mode ◽  
Experimental Characterization ◽  
Air Conditioning System ◽  
Face To Face ◽  
Interior Spaces ◽  
Air Supply ◽  
Maximum Contribution

The most recent research confirms that airborne transmission may be the dominant mode of SARS-CoV-2 virus spread in the interior spaces of buildings. Consequently, based on some prescriptions that implemented natural ventilation during face-to-face lessons in a university centre, an experimental characterization of several complementary options aimed at reinforcing the prevention and safety of the occupants was carried out. The action protocol adopted was based on the combination of mandatory natural ventilation, a maximum contribution of outdoor air supply in the air conditioning system, and the use of filtering devices located inside the classroom. All the strategies were incorporated concomitantly with necessary compliance with the basic conditions of social distance, occupation, use of masks and guidelines for use and cleaning within educational buildings. The suitability of this protocol was further evaluated throughout the teaching day with students and teachers by measuring the CO2 concentration. The results showed that the measures implemented successfully removed the possible pollutants generated inside.

Experimental Characterization of the Reliability of 3-Terminal Dual-Damascene Copper Interconnect Trees

2002 ◽  
Vol 716 ◽  
Author(s):  
C. L. Gan ◽  
C. V. Thompson ◽  
K. L. Pey ◽  
W. K. Choi ◽  
F. Wei ◽  
...  
Keyword(s):  
Stress Conditions ◽  
Experimental Characterization ◽  
Contact Lines ◽  
Tree Structures ◽  
Similar Test ◽  
Dual Damascene ◽  
Copper Interconnect ◽  
Test Conditions

AbstractElectromigration experiments have been carried out on simple Cu dual-damascene interconnect tree structures consisting of straight via-to-via (or contact-to-contact) lines with an extra via in the middle of the line. As with Al-based interconnects, the reliability of a segment in this tree strongly depends on the stress conditions of the connected segment. Beyond this, there are important differences in the results obtained under similar test conditions for Al-based and Cu-based interconnect trees. These differences are thought to be associated with variations in the architectural schemes of the two metallizations. The absence of a conducting electromigrationresistant overlayer in Cu technology, and the possibility of liner rupture at stressed vias lead to significant differences in tree reliabilities in Cu compared to Al.

Experimental Characterization of Mechanical Behavior of Cord-Rubber Composites

1982 ◽  
Vol 10 (1) ◽  
pp. 37-54 ◽  
Author(s):  
M. Kumar ◽  
C. W. Bert
Keyword(s):  
Response Characteristic ◽  
Cord Compression ◽  
Complete Characterization ◽  
Strain Response ◽  
Strain Gages ◽  
Experimental Characterization ◽  
Rubber Composites ◽  
Stress Strain ◽  
Strain Data

Abstract Unidirectional cord-rubber specimens in the form of tensile coupons and sandwich beams were used. Using specimens with the cords oriented at 0°, 45°, and 90° to the loading direction and appropriate data reduction, we were able to obtain complete characterization for the in-plane stress-strain response of single-ply, unidirectional cord-rubber composites. All strains were measured by means of liquid mercury strain gages, for which the nonlinear strain response characteristic was obtained by calibration. Stress-strain data were obtained for the cases of both cord tension and cord compression. Materials investigated were aramid-rubber, polyester-rubber, and steel-rubber.

Turbulence ingestion noise. I - Experimental characterization of grid-generated turbulence

AIAA Journal ◽  
2002 ◽  
Vol 40 ◽  
pp. 16-25
Author(s):  
J. P. Wojno ◽  
T. J. Mueller ◽  
W. K. Blake
Keyword(s):  
Experimental Characterization
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