Should I normalise data when measuring fluorescence intensity ?

I'm measuring fluorescence intensity of the product in an enzyme reaction in 37 celsius degree. I set a kinetic measurement in 1 hour. The fluorescence intensity of the BLANK ( contains only...

03 January 2021 5,554 5 View

What if the assumption of homogeneity of slope is violated in ANCOVA?

Dear everyone, I implemented a quasi experiment pre and post test design. A new teaching intervention in class. as other researchers did, I used pre test as covariance and run ANCOVA to see...

24 November 2020 6,869 5 View

Plaxis V20 water load apply error in analyses?

Recently I have been working in some embankment project and plaxis V20 is the FEM software I am using to calculate. But by the time I am working, I figured out the water load sometimes applied to...

27 October 2020 7,835 1 View

Rotation matrix - 3D dimension to 2D dimension?

22 October 2020 9,354 4 View

How to combine items to corresponding components in questionnaire?

Dear senior researchers, I am a master student. I am analyzing data that I collected for my master thesis. One of my research question is What are students' attitude toward Concept map as a...

21 June 2020 5,476 3 View

Why is GC-MS vacuum not stable?

When the vacuum status was attained and the GS-MS was running the sequence, it lost the vacuum and turn to the pumping down process. I tried to make sure that the screws are tightened, and there...

24 May 2020 978 9 View

Which experiments could clearly show the immune-enhanced diseases in SARS-CoV-2 vaccine study ?

Now there are many studies of SARS-CoV-2 vaccines in animals and human. One of the concerns relating to safety of vaccine is the immune-enhanced disease. But I wonder which animal experiments...

14 May 2020 5,179 10 View

Effective MCMC sample size vs effective population size?

Dear Colleagues. Does anyone has knowledge in running Migrate-N software? As the software introduction says it estimate effective population size (Ne) but the output I got only for effective...

28 July 2019 4,771 3 View

What the best soltion has good adhesion to CdS thin film?

I'm trying to find a solution to dissolve particles CZTS- about 15nm.This solution has to have great adhesion to CdS layer. Recently, I have tried toluen and hexanthiol but I still can control...

15 March 2019 5,444 2 View

Which is best way to convert median to mean in meta-analysis?

I'm conducting a meta-analysis, but I got a trouble in several articles that provided Median, Q1, Q3, and sample size. I have used several ways to convert Median to Mean and estimate SD, but I'm...

15 September 2018 5,824 7 View

What are the most reliable approaches to extract key continuous frames from a video, with complete automation?

I have an input video, of skin (from a microscope that means it is magnified such that blood capillaries are visible). The idea is to extract 15 sec of continuous frames from a video of 1 min,...

02 March 2021 2,735 2 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

01 March 2021 736 3 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

How to assign different material properties to each element in Abaqus ?

Hello, I am writing a python script to generate my model and write the input file. The problem is I have 1000 elements in my mesh and I want to assign different material properties to each...

01 March 2021 9,511 3 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View