What is the difference between the supplementary cementitious materials and alkali-activated concrete?

18 February 2021 9,188 3 View

Formulate model for one integer optimization?

I am working on one optimization problem. the model with two states, the transition between the two states based on one threshold value (L = 5, which L< 5 -> Normal state, L== 5 ->...

11 February 2021 4,045 3 View

Which journals accept the short papers in the field of civil engineering or in the field of corrosion?

I want to publish my pilot study about corrosion in RC structures in any journal. Please help me to find good options.

25 January 2021 6,413 3 View

How to calculate age-standardized prevalence ratio with 95%CI?

I need to calculate the prevalence ratios to show the trend of prevalence of a drug group used by pregnant women over the years (2001-2018). I would like to use the year 2001 with age distribution...

05 January 2021 7,986 5 View

How can I build one phylogenetic tree for an arthropod community when I had known their scientific names?

I am working on the phylogenetic analysis for communities of plants and arthropods. A standardized protocol of building phylogenetic tree for plant species list that was widely used in studies....

29 December 2020 181 3 View

How to test correlation for big sample size?

Hi, I have a dataset with 18k samples. I want to test the correlation between the variables of these samples and know their relations. The variables for correlations include: numeric*ordinal...

26 December 2020 8,753 14 View

How Nickel affect biological methane production ?

Soil fertility, plant nutrition

23 December 2020 7,301 5 View

How to calculate the energy reflection coefficients in LAMB wave edge reflection problem?

Hello everyone, Has anyone ever succeeded in calculating the energy reflection coefficients in LAMB wave edge reflection problem? Or any available code resources? I am a third-year master...

08 December 2020 1,151 3 View

How to export the standard XRD spectra of titanium alloy under different X-ray wavelength?

Hello all, which software can be used to export the standard XRD spectra of titanium alloy under different X-ray wavelength? How to operate? Such as 0.11 angstrom or 0.6887 angstrom (These X-ray...

07 December 2020 6,433 2 View

What is the effect of isothermal heat treatment on materials structure from room temperature?

Hi all I would like to study the microstructure evolution of semi-solid tin-lead alloy for an extruded sample during the isothermal heat-treatment process. Is there any difference if I heat up...

18 November 2020 9,087 7 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

How could I process data in RCT to include it in meta-analysis?

I'm in the process of doing a meta-analysis and have encountered some problems with the RCT data. One of my outcom is muscle strength. In one study, I have three different measurements of muscle...

25 February 2021 7,603 3 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

Satellite orbit estimation using Recurrent Neural Network - what should I use?

Hello, I am a master's student studying in Yonsei Univeristy, Korea. I am trying to estimate the state of satellite, using Neural Network. Below is a simple flow of my study. 1. Train (t0 ~ t1)...

23 February 2021 6,383 3 View

Any Differences in COVID-19 vaccines?

Are there any differences (outside of the clinical trials that led to their EUA) observed in the rate of infection among those who have received the Pfizer vs Moderna vaccine since the mass...

22 February 2021 9,727 6 View

How can I get the coding gene sequences of Hela and U2OS cell lines? Is mRNA sequence of Hsp90 alpha tissue specific??

I am looking for hsp90 mRNA sequence in Hela and U2OS cell lines, I have tried through ncbi but always the output is hsp90 in homo sapiens not in the specific cell line. Kindly, could any one...

22 February 2021 1,853 3 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View

Difficulty in debugging code to correct error - TypeError: '<' not supported ?

I am trying with a Unet code ontained from net ...in tensorflow. When trying to predict the segmentation result with the trained and saved model with metric " iou" using "CustomObjectScope"...

22 February 2021 5,254 1 View