I have wondered if there is any procedure with nanotechnology that improves the virucidal action of the fibers of masks, gloves, gowns, etc.
I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...
28 February 2021 298 3 View
I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...
25 February 2021 2,615 3 View
My baseline increases without any explanation, it is only fixed by changing the solution B, will it be the column? Reagents? Bomb? Detector? Solution A: H3PO4 0.01% IN WATER Solution B: H3PO4...
21 February 2021 5,656 3 View
I've got this 5 year Direct Normal Irradiance data I downloaded from https://re.jrc.ec.europa.eu/. I ordered this by year and by every 24 hours because I need the DNI curve by max in summer, min...
17 February 2021 2,777 5 View
Hello everyone I would like to improve the buffer capacity of seawater (pH ~8) in order to dissolve as much CO2 as possible without dropping the pH below 7.5 (a range between 7 - 7.5 is...
17 February 2021 2,797 2 View
I am looking for a copy of the resume book of UEP2013 Asian Edition (Urban Environmental Pollution 2013 Asian Edition) held in Beijing. If somebody has it, please I would like to obtain an...
11 February 2021 2,247 2 View
I am exploring up-to-date books on air pollution and air quality, and I would like to know which books do you recommend for environmental engineering students.
25 January 2021 3,972 7 View
Surely they will want to avoid contact with air/moisture, so what is the procedure for this?
23 January 2021 428 2 View
I need information concerning the penetration and reflection capacity of ultraviolet and infrared radiation wavelengths on different most common materials. Edit. Can somebody recommend a book to...
16 January 2021 8,051 6 View
Hi. I am doing an agarose gel electrophoresis. After running PCR samples in a 2% agarose gel at 90V x 45' I obtained the results in the image. The ladder bands are not properly stained. For...
14 January 2021 2,316 4 View
Any idea on how to get the volumic ratio of glass fiber in a gypsum board ? Thank you for your help !
01 March 2021 2,501 3 View
We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...
25 February 2021 568 1 View
I'm doing a cfx simulation of a multiphase flow in pultrusion and i set the Interfacial Area density in the heat exchange of a porous medium in this way IAD=Total fiber lateral surface of fiber...
23 February 2021 6,043 1 View
I need to make an injection molding machine in which short fibers are to be introduced. Short fiber length and material properties are to be determined and also the material strength are to be...
22 February 2021 4,290 1 View
A the world find means to control covid 19 by vaccination ,new variants came to spread and make the world in fear and danger, to understand the conduct of these variants, es constantly change...
21 February 2021 3,080 6 View
does anyone know the best method to differentiate and quantify rapid fatiguing and fatigue resistant muscle fibers? the old method form the 1980's uses ATP staining which is quite labor intense?
21 February 2021 6,483 3 View
I obtained a XRD diffractogram with significant broad band at low 2theta levels, also around 30 2theta another smaller broad band appears. It all points out to the existence of an amorphous phase....
19 February 2021 8,414 4 View
Pico-scale This is three orders of magnitude smaller than a nanometer (and thus most nanotechnology) and two orders of magnitude smaller than most chemistry transformations and measurements. Pico...
18 February 2021 4,540 5 View
Hello, I am performing a western blot of my SARS-CoV-2 Spike-pseudotyped lentiviral particles. I denature my virus by adding concentrated virus to 2X Laemmli buffer at 1:1, then boiling for...
17 February 2021 4,844 4 View
Hi guys, I am facing problems to interpret a DMA results. Material: Composite Bisphenol A + curaua fiber What is being tested: the influence of fiber volume on the composites properties...
12 February 2021 174 7 View