Do hydrogen bonds in nanofibers affect the fiber’s filtration efficiency?

More Jung Seojin's questions See All

Can I calculate the average from the data which are collected every 30 minutes for ANOVA?

I artifically elevated the air temperature in the heated plot by 3-celsius degree compared to that in the control for 7 days. I want to figure out the effect of the temperature manipulation on...

21 January 2021 1,185 8 View

What is wrong with my western blot transfer system? (smearing is occured)?

I'm now doing western blotting for several proteins. but transfer is not perfectly happened. bands are looks like smeared or smudged. And it seems to the lower MW bands are more affected. what did...

06 December 2020 9,153 5 View

How to calculate bulk density, porosity, and void ratio of soil?

If the particle diameter is 2 mm and the particle density is 2.5 g/cm, what is the bulk density, porosity, and void ratio of this soil? I had known that the formula to calculate them. The...

11 October 2020 3,466 3 View

How can I check the deparaffinization during IHC protocol?

Hello. I am a beginner researcher experimenting with IHC for the first time. I would like to know how to make sure it is completely deparaffinized when it is fixed with paraffin and removed with...

22 March 2020 7,795 3 View

If the cofactor(NAD) concentration in 1mM and substrate is 10mM in enzyme reaction, the substrate become 9mM after reaction?

02 March 2020 3,982 6 View

How to make simulated body fluid using glycerol and ethanol?

Hi. I'm trying to find the method making simulated body fluid using gylcerol and ethanol, but I cannot find it. (I want to make the solution that has similar surface tension and viscosity of human...

05 November 2019 9,051 1 View

How many cells do I need to get a pure plasma membrane? Do you have a kit?

The purpose of this study is to obtain plasma membranes from adherent cells by means of ultracentrifuge. The problem with the experiment is that the yield is too low when obtaining plasma...

01 October 2019 3,375 3 View

What is the difference between PET film and biaxially oriented PET film?

Hi. I'm trying to make LIS(Liquid Impregnated Surfaces) using PET film, so I was looking for the appropriate film product. Then I found biaxially oriented PET film, and I want to know if there is...

22 July 2019 329 1 View

Can I use multilevel regression with skewed count data?

I am studying neighbourhood effects on antisocial behaviour using multilevel modelling. The dependent variable, antisocial behaviour is a count data which varies between 0 and 10 which is a skewed...

28 November 2018 8,633 7 View

In sandwich ELISA in human serum, how can I reduce matrix effects and background?

Hello, I'm setting sandwich ELISA to measure amount of target protein in human serum. I have recombinant protein and checked 2 kinds of antibodes(different epitope) were suitable to perform...

29 March 2018 8,728 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

Have you ever experiencing air vent trouble in fermentation process?

Dear all, My research group is currently working with a 12-litre fermenter. Somehow, if we do the fermentation for more than 20 hours, the process will be more prone to contamination. Our current...

23 February 2021 1,908 2 View

Help with assigning pressure boundary conditions in FLUENT on a large structure?

Hello, I created a very tall tower (>1000m) and applied pressure boundary conditions at the inlet (bottom) and outlet (top) that correspond to the pressure are their relative altitudes....

22 February 2021 9,972 4 View

What type of pressure sensor are usually used in microfluidics?

My team is designing a dual channel microfluidic chip that runs air and water. I think we've decided on the NE1000 syringe pump for it's versatility and feedback control. We will be ordering the...

18 February 2021 9,928 2 View

Not able to charge-discharge Li-ion coin cell at higher C rate ?

I am working on cathode material. I have made different Li-ion coin cell against Li metal using commercial available cathode materials such as LCO,LMO, LFP and NMC and also with the lab...

18 February 2021 1,450 3 View

How to find the air side pressure drop in a spiral fin tube bundle cross flow heat exchanger?

How to find the air side pressure drop in a spiral fin cross flow heat exchanger? The pressure difference at the inlet and outlet is very low compared to the experimental results, which I...

18 February 2021 1,109 2 View

Is it correct to identify an air mouvement by the Venturi effect in buildings ?

Knowing that the Venturi effect is used most in tubes (according to my basic knowledge in physics) to increase the speed of air or liquids by reducing the tube volume, my question is if we have...

17 February 2021 1,260 1 View

Trouble shooting with his tagged protein expression in E.Coli?

i have issues in expressing a chicken protein in BL21 cells with his tag. I do not see induction even at 18 degrees. Any suggestions

15 February 2021 8,939 3 View