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 the exact mechanism of the antimicrobial effect of local anesthetics?

The antimicrobial effect of local anesthetics has been known for more than 50 years, but it still seems to have an unclear mechanism of action. which bacteria? which concentration? etc etc. ....

27 February 2021 4,450 2 View

Uncertianiny in using dry or wet basis in mixing a sediment with fuel oil?

Hello I'm currently working on a topic related to studying the anaerobic biodegradation of TPH in marine sediments. In this work, sediment should be mixed with fuel oil to a concentration of 20 g...

24 February 2021 9,839 3 View

Advice on growing lactobacillus species in the lab?

Hello everyone, For part of my PhD project, I'm hoping to grow some lactobacillus species in the lab so that I can create standard curves for a qPCR quantification of a faecal sample. However, I...

24 February 2021 3,157 6 View

What are the best cations for preparing competent cells, Ca2+ or Mg2+?

I have been reading various articles and most state that treatment with CaCl2 produces higher efficiency of transformation than MgCl2. Can anyone explain why Ca2+ is better than Mg2+ at...

16 February 2021 8,519 5 View

Access to supercomputer resources in India?

Hello everyone, I want to perform some gaussian calculations and want to use Materials studio for my research work. Can anyone guide me how to get access to supercomputer resources in India for...

15 February 2021 8,264 3 View

How we can correct the slide?

i am doing research on E.feacalis that is grown in dentin and after that, we did a gram stain for the sample my Q first does the gram stain consider as reliable tool for testing and seeing the...

14 February 2021 6,697 1 View

Can one use just 250 micron sieve & still get a good number of mycorrhizal spores from the soil?

In a situation where one cannot get the appropriate & separate levels of sieve for mycorrhizal survey work, can just one level of sieve give good results & spore counts?

13 February 2021 3,760 2 View

Would using an asRNA for repressing transcription of a high expression Listeria monocytogenes non-coding RNA harbored in a plasmid be a viable option?

Hello all, I am interested in deleting a highly expressed non-coding RNA located on a Listeria monocytogenes plasmid. Currently, there are not any optimized gene deletion methods for Listeria...

09 February 2021 4,994 1 View

Review Papers regarding transcriptional regulations & promoter types/classes in Gram positive bacteria?

Dear fellow researchers, Could you please suggest me excellent review papers discussing transcriptional regulations and/or promoter classes in Gram positive bacteria? Thank you so much for your help!

08 February 2021 6,909 3 View

Flexibility of RNAseq?

When you use RNAseq I understand that it must follow certain conditions when you use it. One of them is the insertion of a polyA tail. The insertion of the polyA must include then...

05 February 2021 3,770 4 View