3D Printed Mask Frames Improve the Inward Protection Efficiency of a Cloth Mask
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چکیده
منابع مشابه
Pinhole Mask Sensor a Pinhole Mask Sensor
Figure 1 shows an example of a light field camera with a pinhole mask in front of the sensor. If we look at the sensor in 1D and assume an total x-resolution of 900 pixels and a Θ resolution of 9, the local x resolution is 100. The disadvantages are therefore a loss in resolution and a loss of light, as most of the light gets blocked by the mask. Therefore, while this model is very clean on a t...
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The mathematical problem discussed is important for generating test cases in order to debug floating point adders designs. Floating point numbers are assumed to be written as strings of {0, 1} bits, in a format compatible with IEEE standard 754. A mask is a string of characters, composed of {′0′,′ 1′,′ x′}. A number and a mask are compatible if they have the same length and each numerical chara...
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We have developed and implemented a method which given a three-dimensional object can infer from topology the two-dimensional masks needed to produce that object with surface micromachining. The masks produced by this design tool can be generic, process independent masks, or if given process constraints, specific for a target process. This design tool calculates the two-dimensional mask set req...
متن کاملThe clinical evaluation of the Respi-check mask: a new oxygen mask incorporating a breathing indicator.
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Background and Aim: Electrospun nanofibers can be used to produce filter media in personal protective equipment for the military. The present study aimed to optimize the electrospinning process used to create polyurethane nanofiber substrates and compare the optimum substrate filtration performance with a typical commercial substrate used in the structure of N95 respirators. Methods: In this ex...
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ژورنال
عنوان ژورنال: ACS ES&T Engineering
سال: 2021
ISSN: 2690-0645
DOI: 10.1021/acsestengg.1c00028