What is the accepted recovery rate range for an acid digestion(HCl:HNO3), followed by an AES analysis?

I'm doing a heavy metal analysis by digesting bird feathers using acids. And in order to verify whether the method i use and the instrument i use give accurate results i was planning to do a...

22 September 2020 4,129 3 View

If I dissolve 35 g of NaCl in 100 ml, what will be the approximate specific gravity?

If I dissolve 35 g of NaCl in 100 ml, what will be the approximate specific gravity?. Is it 1.35? or is there some trick? I read that saturated NaCl soltion has specific gravity of 1.2. Also...

13 May 2020 5,065 2 View

How to avoid uneven (intensity) bands during Western Blotting?

I've uneven bands (size, intensity, and staining) when doing Western Blotting and I'm wondering what the problem could be. The protocol: -10% separating gel (0.375M Tris pH8.8; 0.1% SDS; 10%...

14 July 2019 6,577 8 View

How to ask a good question in RG? and get many responses?

Do we need to be specific? Sometime I feel that if we become specific with more details when we ask the questions, we loose some potential researchers from other fields. So the number of answers...

27 May 2019 3,627 24 View

Hello.. Is it possible to analyse the cross sectional area propagation of a flame by using mesh free method ?

18 January 2017 9,363 1 View

How to dissolve PEI (polyethylenimine)?

20 April 2016 2,880 22 View

Is there any possibility that tofu protein recovery can achieve more than 100%?

I make tofu from vegetable soybean (edamame). Water to bean ratio for tofu making is 1:12 and CaSO4.2H2O as coagulants. Vegetable soybean has moisture content 64% (wet basis) and protein 5% (wet...

16 October 2015 3,816 12 View

Could someone help me with some Neuronal Tissue Co-IP issues?

I have been doing co-immunoprecipitations for a while now using my own buffers (CHAPS lysis buffer + protease & phosphatase inhibitors) and Dynabeads protein G beads. Useful information: -The...

21 January 2014 5,209 3 View

Evaluation of extraction socket healing

How to evaluate extraction socket healing (when the wound is primarily sutured)? Most of the studies use Landry and Turnbull Healing Index. There is also the H2O2 bubbling test. Do you have any...

01 January 1970 2,794 2 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 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

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View

How to design a boost converter for a mppt controller?

I have a doubt on how to select the inductor and capacitor value when I want to implement MPPT controller. This is because we always take a maximum output voltage and current but in this case, we...

28 February 2021 3,637 2 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 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

How to sample data to increase presence of solar panels in the images?

I am working on creating deep neural network on geospatial dataset and wanted to know how to do the sampling so that I can increase the presence of solar panels in the images. I cannot use entire...

25 February 2021 3,936 6 View