How can I correctly model an impact on the soil in Abaqus?

I am modeling dynamic compaction in Abaqus. I model the impact of a tamper on the soil and the job completes successfully, but the result has some problems. The impact happens and after that, the...

11 June 2020 9,960 1 View

whats the best ultrasound power ,amplifier and frequencies for the best yield of edible oil extraction?

02 March 2020 1,491 1 View

Two dimentional liquid chromatography?

Can 2D-LC system be built by connecting two orthogonal columns with the use of two pumps and a switching valve? I want to build a tandem system myself. Is this practical?

17 February 2020 5,017 3 View

Is there anyone who silmulates the mechanical properties of graphene membrane?

Hello everyone, I want to simulate the mechanical response of graphene membrane on cavities after applying force but I am quite new working with comsol, Is there anyone that I cantact by email or...

31 January 2020 940 1 View

Why the Ansys Marco v.12 not running in the Ansys new versions?

I have Ansys Marco, this macro is not running in the Ansys new versions.

31 January 2020 9,094 2 View

What is the best way to find the location of an object in an image?

I need an accurate algorithm to find the location of objects (such as plate location in a car image, eyes location in a face image, etc.). Thanks in advance for your help.

27 August 2019 6,339 11 View

Hi, would you mind please guide me where or which site can I find the (m/z) data base to describe the UHPLC/QTOF-MS analysis results?

Hi, would you mind please guide me where or which site can I find the (m/z) data base to describe the UHPLC/QTOF-MS analysis results?

26 June 2019 4,037 3 View

Are there hartman personality test work ?

the test run on different situations on people?

04 February 2019 5,737 4 View

Is it possible to clone four different genes in a single expression vector (like pGEMT, pET) and to screen them successfully?

The first transgene will be easily screened by using marker gene analysis, but in case of second, 3rd and 4th genes it may give false results (positive results), then what alternative methods...

17 October 2018 3,934 3 View

Which ceramic material has excellent wear resistance properties when used as a coating (thermal sprayed) on a metallic substrate?

Ceramic coating is provided on the metal to improve its wear resistance. There are many ceramic materials are available and seems not easy to choose best one which can fulfill our requirement....

17 October 2018 4,666 10 View

What is role of toluene and stearic acid in ball milling for powder ? In what weight percent we should add this to powder?

I am doing ball milling operation of Aluminum and silicon carbide powder. I am pretty confused about what should be added as process control agent ? what is role of toluene as PCA and stearic...

12 February 2021 5,205 3 View

What is the reason for using Glass Impingers?

Impinger bottles are used at some applications, where the gas is cooled and the condensate is dissolved in a solvent contained in the impingers. I have always seen impingers made of glass. Why not...

03 February 2021 6,959 2 View

In order to simulate a DWC in steady state, how to put the unit operations in the flowsheet of any process simulator?

14 January 2021 3,938 6 View

Is it reliable to use toluene as a solvent in measuring density by liquid displacement method?

Hi all, I am working on pollen and want to examine the true density. No doubt, toluene does not swell the particles but it may dissolve the lipid materials and other organic molecules besides the...

07 January 2021 2,471 2 View

What is the best way to maintain constant concentration of a volatile organic liquid in an open experimental set-up?

The purpose is to keep a NAPL (eg Toluene) concentration constant in an open tank set-up.

27 December 2020 7,325 2 View

How to obtain a wet deposited film by spin coating method?

I tried to deposit some polystyrene thin films by the use of spin coating method. I should mention that the solvent which I used was toluene. The films which I obtained were totally dry. While I...

14 December 2020 4,655 5 View

Is there a solvent for polypropylene at room temperature?

I want to dissolve polypropylene for making a solution so as to make fibres at room temperature. I have tried toluene and xylene but without any success in dissolving.

06 December 2020 8,479 2 View

Do the anchoring condition at NP-LC interface changes in any particular solvent (i.e. toluene, ethanol etc) or remains the same ?????

For absorbance and emission measurements of nanoparticles dispersed nematic liquid crystal we dissolve sample into a particular solvent (like toluene, ethanol etc). do anchoring condition at...

04 December 2020 1,938 1 View

Why is my molecular rotor displaying a bathochromic shift in toluene compared to MeOH or EtOH?

Hello, I am studying the photophysical properties of a molecular rotor which unexcpectedly, shows a lambda(max, absorption) = 565 nm in toluene, but a lambda (max, absorption) = 540 nm in MeOH...

15 September 2020 7,830 3 View

Is it possible to reuse Toluene after PAH Extraction with soxhlet?

In my lab, we are using Toluene for extraction of PAH from biochar (byproduct of pyrolysis). There are numerous samples to measure. Therefore, to make it economic can we distill toluene from the...

03 September 2020 6,111 5 View