Interpretation of negative values when using Dekati ELPI+?

Hi, I am currently using an Electrical Low Pressure Impactor (ELPI+) manufactured by Dekati. While using it to measure the number of particles, sometime, I encounter negative value for number of...

10 November 2017 827 0 View

Is it possible to model Aerosols in Aspen?

Is it possible to model aerosols in an absorber column in aspen? If so, how can it be done My purpose is to model the interaction of sulphuric acid aerosols present in flue gas with a solvent (to...

08 September 2017 1,469 2 View

Drag Loss in Aircraft?

What is the percentage of aircraft speed that is lost due to drag experienced by it? Does the drag loss vary with respect to the altitude and speed of aircraft? How do you calculate the loss of...

08 September 2015 1,849 1 View

How do I calculate the temperature rise during friction?

I would like to know if there is a way to calculate the temperature rise and hence the wear rate of two bodies in sliding contact theoretically? The data I have are contact pressure, sliding...

31 December 2014 6,398 6 View

Which software should be used for contact dynamic analysis?

11 December 2014 5,172 17 View

What is the Shear Modulus and specific heat of Molybdenum Disulphide?

What is the Shear Modulus and specific heat of MoS2? Also I would like to know other important mechanical properties of MoS2

11 December 2014 6,077 4 View

Young's Modulus of Molybdenum Disulphide (MoS2)?

08 September 2014 7,149 3 View

What are the dimensions of the Total Knee Replacement Implant?

I would like to know the Dimensions of a TKR Implant with both the femoral and the tibial part. Also reference for creating a TKR Implant on either ProE or Solidworks or Catia?

08 September 2014 7,023 4 View

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

I want to simulate a system containing protein and heavy metals; which force field is most reliable for this purpose?

The protein I want to simulate has multiple heavy metals. I wanted to know which force-field I should use with GROMACS to achieve this. Most importantly, do the latest updates in the force-field...

16 February 2021 2,420 1 View

Do you know of an informal caregiver of a person who has recently received a bone marrow transplant?

We are conducting a pilot study of an intervention for informal caregivers of persons who have recently received a bone marrow transplant in the US. If you know of anyone who might be interested,...

13 February 2021 9,174 1 View

What can be use to mop up heavy metals from vegetables or soils in quarry mining site?

It has been established that quarry mining site polluted and contaminated it's environment with heavy metals, these affects the crops and vegetables planted in the area. The possible solutions to...

12 February 2021 1,155 5 View

Why stop the reaction in ice for the fluorescent probe FDA (fluorescein diacetate)?

Hi, In literature I noticed that who stains haemocytes with FDA for 30 min then stop the reaction in ice while this does not apply for 15 min incubation time (or maybe authors did not write this...

08 February 2021 3,366 3 View

Please how can i write a proposal on the methodolgies of AAS to determine heavy metalsin water?

Please I want to write a proposal on the methodologies of AAS to determine heavy metals in water. please any link can help.

08 February 2021 3,587 7 View

Why E1g mode (Molybdenum disulfide) is undetectable in Raman spectroscopy?

I synthesized 1T/2H hybrid phase MoS2 on a graphite foil surface by hydrothermal method, and then analyzed it by Raman spectroscopy. As a result, three new peaks correspond to the 1T phase were...

04 February 2021 6,580 2 View

How to calculate the Boiling point for metals at high vapor pressure?

In our experiment, some metal surfaces are exposed to radiation heat under high vapor gas pressure. I would like to ask if there is any way to calculate the boiling point for metals under high...

31 January 2021 249 4 View