scholarly journals Facemask quality measurement using AMG8833 multiarray thermal sensor

2021 ◽  
Vol 2107 (1) ◽  
pp. 012057
Author(s):  
Erdy Sulino Mohd Muslim Tan ◽  
Marni Azira Markom ◽  
A.M. Andrew ◽  
MHA Hamid ◽  
Muhammad Aiman Hakim Muhammad Izham ◽  
...  
Keyword(s):  
Quality Measurement ◽  
Face Mask ◽  
Maximum Distance ◽  
Thermal Sensor ◽  
The Face ◽  
Test Materials ◽  
The Way

Abstract Face masks have become a necessary thing that people need to wear daily. Even though some people might already be vaccinated, there is still a chance that the Covid-19 virus could still infect them. Hence, this paper presents a device developed to help determine the quality of face masks crucial in preventing the spread of the virus. These devices can calculate the temperature outside the face mask at a maximum distance of three meters. The way this device works is by measuring the temperature released out of the face mask. Here, the developments of the device with the ability to help determine the quality of face masks are explained and discussed. In the end, the device is perfectly functioning and definitely would assist in verifying the quality of the face masks being worn by someone. Two types of faces are used as test materials: the KN95 type face mask and the 3ply facemask used in Malaysia. Each facemask collected data from 30 minutes to 300 minutes for ten subjects over ten days. Studies that have been conducted show that the thermal value of the KN95 facemask increased to 30.27°C after 5 hours of use. At the same time, the 3ply type facemask offers a thermal value of up to 34.58oC after 5 hours of use. This shows a thermal value difference of up to 4.3PC for both facemasks after 5 hours of use.

scholarly journals Detection of Hidden Facial Surface Masking in Stored and Real Time Captured Images: A Deep Learning Perspective in Covid Time

2021 ◽  
Vol 38 (6) ◽  
pp. 1875-1885
Author(s):  
Ruchi Jayaswal ◽  
Manish Dixit
Keyword(s):  
Deep Learning ◽  
Real Time ◽  
Preventive Measure ◽  
Face Mask ◽  
Histogram Equalization ◽  
Test Accuracy ◽  
The Face ◽  
Novel Coronavirus ◽  
Face Detector

A novel coronavirus has spread over the world and has become an outbreak. This, according to a WHO report, is an infectious disease that aims to spread. As a consequence, taking precautions is the only method to avoid catching this virus. The most important preventive measure against COVID-19 is to wear a mask. In this paper, a framework is designed for face mask detection using a deep learning approach. This paper aims to predict a person having a mask or unmask and also presents a proposed dataset named RTFMD (Real-Time Face Mask Dataset) to accomplish this objective. We have also taken the RFMD dataset from the internet to analyze the performance of system. Contrast Limited Adaptive Histogram Equalization (CLAHE) technique is applied at the time of pre-processing to enhance the visual quality of images. Subsequently, Inceptionv3 model used to train the face mask images and SSD face detector model has been used for face detection. Therefore, this paper proposed a model CLAHE-SSD_IV3 to classify the mask or without mask images. The system is also tested at VGG16, VGG19, Xception, MobilenetV2 models at different hyperparameters values and analyze them. Furthermore, compared the result of the proposed dataset RTFMD with the RFMD dataset. Additionally, proposed approach is compared with the existing approach on Face Mask dataset and RTFMD dataset. The outcomes have obtained 98% test accuracy on this proposed dataset RTFMD while 97% accuracy on the RFMD dataset in real-time.

scholarly journals Face masks as layers of meaning in times of COVID-19

2020 ◽  
pp. 1354067X2095754
Author(s):  
Luca Tateo
Keyword(s):  
University Students ◽  
Everyday Life ◽  
Cultural Psychology ◽  
Meaning Making ◽  
Face Mask ◽  
The Other ◽  
Different Types ◽  
The Face ◽  
The Way

The pandemic of COVID-19 has brought to the front a particular object: the face mask. I have explored the way people make-meaning of an object generally associated with the medical context that, under exceptional circumstances, can become a presence in everyday life. Understanding how people make meaning of their use is important. Using cultural psychology, I analyse preferences toward different types of face masks people would wear in public. The study involved 2 groups, 44 Norwegian university students and 60 international academics. In particular, I have focused on the role of the mask in regulating people affective experience. The mask evokes safety and fear, it mediates in the auto-dialogue between “I” and “Me” through the “Other”, and in the hetero-dialogue between “I” and the “Other” through “Me” The dialogue is characterized by a certain ambivalence, as expected. Meaning-making is indeed the way to deal with the ambivalence of human existence.

scholarly journals Optical microscopic study of surface morphology and filtering efficiency of face masks

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7142 ◽  
Author(s):  
Bhanu Bhakta Neupane ◽  
Sangita Mainali ◽  
Amita Sharma ◽  
Basant Giri
Keyword(s):  
Pore Size ◽  
Low Cost ◽  
Public Awareness ◽  
Face Mask ◽  
Multiple Parameters ◽  
Governmental Agencies ◽  
Long Time ◽  
The Face ◽  
Filtering Efficiency

BackgroundLow-cost face masks made from different cloth materials are very common in developing countries. The cloth masks (CM) are usually double layered with stretchable ear loops. It is common practice to use such masks for months after multiple washing and drying cycles. If a CM is used for long time, the ear loops become stretched. The loop needs to be knotted to make the mask loop fit better on the face. It is not clear how washing and drying and stretching practices change the quality of a CM. The particulate matter (PM) filtering efficiency of a mask depends on multiple parameters, such as pore size, shape, clearance, and pore number density. It is important to understand the effect of these parameters on the filtering efficiency.MethodsWe characterized the surface of twenty different types of CMs using optical image analysis method. The filtering efficiency of selected cloth face masks was measured using the particle counting method. We also studied the effects of washing and drying and stretching on the quality of a mask.ResultsThe pore size of masks ranged from 80 to 500 μm, which was much bigger than particular matter having diameter of 2.5 μm or less (PM2.5) and 10 μm or less (PM10) size. The PM10filtering efficiency of four of the selected masks ranged from 63% to 84%. The poor filtering efficiency may have arisen from larger and open pores present in the masks. Interestingly, we found that efficiency dropped by 20% after the 4th washing and drying cycle. We observed a change in pore size and shape and a decrease in microfibers within the pores after washing. Stretching of CM surface also altered the pore size and potentially decreased the filtering efficiency. As compared to CMs, the less frequently used surgical/paper masks had complicated networks of fibers and much smaller pores in multiple layers in comparison to CMs, and therefore had better filtering efficiency. This study showed that the filtering efficiency of cloth face masks were relatively lower, and washing and drying practices deteriorated the efficiency. We believe that the findings of this study will be very helpful for increasing public awareness and help governmental agencies to make proper guidelines and policies for use of face mask.

The Problem of Crude Rubber

1940 ◽  
Vol 13 (3) ◽  
pp. 468-473
Author(s):  
A. Thomas
Keyword(s):  
Raw Material ◽  
Commercial Product ◽  
Intrinsic Properties ◽  
Regular Surface ◽  
Paradoxical Situation ◽  
Tremendous Progress ◽  
Different Types ◽  
The Face ◽  
The Way

Abstract In recent years, rubber manufacturers have made tremendous progress in compounding and in methods of manufacture, yet they continue, as they always have done, to regard smoked sheet and crepe from the plantations as the essential raw material of their industry. As a matter of fact, however, latex is the essential raw material, and the changes which it undergoes on the plantations are among the factors which influence the quality of the final rubber and therefore play a part in its possible uses. In the face of this, it seems like a paradox to say that the processing of latex on the plantations is based on arbitrary methods, without any consideration taken of their effects on the properties of the finished rubber, whereas mixing and vulcanizing operations are scrupulously controlled by manufacturers. For what reason does this paradoxical situation continue to prevail? Only because of the way by which the broker still evaluates rubber. The plantations are obliged to classify their commercial product into different types, according to color, superficial appearance, cleanness and the presence or absence of bubbles in sheet rubber, with complete disregard to its intrinsic properties, the latter not even being measured. To be regarded as the best quality, commercial rubber must be of a uniform color, must have a regular surface and must contain neither impurities nor bubbles.

scholarly journals Examining Resilience of Quality of Life in the Face of Health-Related and Psychosocial Adversity at Older Ages: What is "Right" About the Way We Age?

2009 ◽  
Vol 50 (1) ◽  
pp. 36-47 ◽  
Author(s):  
Z. Hildon ◽  
S. M. Montgomery ◽  
D. Blane ◽  
R. D. Wiggins ◽  
G. Netuveli
Keyword(s):  
Quality Of Life ◽  
Health Related ◽  
The Face ◽  
Psychosocial Adversity ◽  
The Way

Strategic threats to energy security as risks of quality of people's life

2020 ◽  
Vol 16 (4) ◽  
pp. 730-744
Author(s):  
V.I. Loktionov
Keyword(s):  
Quality Of Life ◽  
Energy Security ◽  
Well Being ◽  
Scientific Methods ◽  
Analysis And Synthesis ◽  
General Scientific ◽  
And Performance ◽  
Economic Well Being ◽  
The Way

Subject. The article reviews the way strategic threats to energy security influence the quality of people's life. Objectives. The study unfolds the theory of analyzing strategic threats to energy security by covering the matter of quality of people's life. Methods. To analyze the way strategic threats to energy security spread across cross-sectoral commodity and production chains and influences quality of people's living, I applied the factor analysis and general scientific methods of analysis and synthesis. Results. I suggest interpreting strategic threats to energy security as risks of people's quality of life due to a reduction in the volume of energy supply. I identified mechanisms reflecting how the fuel and energy complex and its development influence the quality of people's life. The article sets out the method to assess such quality-of-life risks arising from strategic threats to energy security. Conclusions and Relevance. In the current geopolitical situation, strategic threats to energy security cause long-standing adverse consequences for the quality of people's life. If strategic threats to energy security are further construed as risk of quality of people's life, this will facilitate the preparation and performance of a more effective governmental policy on energy, which will subsequently raise the economic well-being of people.

The way to improve the quality of the application of lime fertilizers

2020 ◽  
Vol 1 (1) ◽  
pp. 88-91
Author(s):  
A.N. Sedashkin ◽  
◽  
A.A. Kostrigin ◽  
E.A. Milyushina ◽  
◽  
...  
Keyword(s):  
The Way

Analysis and Interpretation of Test Beam Data

2018 ◽  
Author(s):  
Richard Wigmans
Keyword(s):  
Energy Resolution ◽  
Particle Physics ◽  
Particle Beam ◽  
Test Beam ◽  
Term Energy ◽  
The Many ◽  
Physics Experiment ◽  
The Way

This chapter describes some of the many pitfalls that may be encountered when developing the calorimeter system for a particle physics experiment. Several of the examples chosen for this chapter are based on the author’s own experience. Typically, the performance of a new calorimeter is tested in a particle beam provided by an accelerator. The potential pitfalls encountered in correctly assessing this performance both concern the analysis and the interpretation of the data collected in such tests. The analysis should be carried out with unbiased event samples. Several consequences of violating this principle are illustrated with practical examples. For the interpretation of the results, it is very important to realize that the conditions in a testbeam are fundamentally different than in practice. This has consequences for the meaning of the term “energy resolution”. It is shown that the way in which the results of beam tests are quoted may create a misleading impression of the quality of the tested instrument.

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