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

Is there a recitation score bank system for fair evaluation and assessment of student recitation?

In actual and virtual class, even if there is rubric for recitation, students may still fail to receive fair grades or scores. Others are active in recitation and others are not or others may fail...

26 February 2021 8,387 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

The Role of Town Planners in CAV Use?

Colleagues and I are about to begin a project investigating the role of town planners and local authorities in establishing the introduction of connected and autonomous vehicles (CAVs). What...

21 February 2021 2,247 3 View

Why are the modelled and circuit system different in response for controlled buck converter?

[Images are attached at bottom] I am currently working on a buck converter controlled by two different control methods, Reinforcement learning applied to find PID values & a lead-lag...

16 February 2021 5,060 10 View

How can I interpret a ratio variable?

Dear colleagues, I am running a regression in which I have the following regression FoodExp = 67.04 DepRatio +.....e My interest is in the interpretation of the coefficient on the dependency...

16 February 2021 2,058 2 View

What is best technique to quantify necrotic cell death of specific cell populations?

I currently using FACS (Aurora Cytek) to quantify necrotic Gr1+ cell death from the spleens of immune competent mice. I target Gr1+ cells in the spleens of tumor-bearing mice using a photodynamic...

08 February 2021 733 6 View

Why do some full text requests not allow me to respond to the requesting person?

Over the last year, when I have clicked on 'View the Request' in the notifying e-mail for a full text request, I have been taken to the paper in question but there is no request visible and thus I...

16 January 2021 7,558 1 View

Spectrabase no longer has overlay function?

Hello, I am a quality control chemist and I test raw materials for a nutritional supplement company. I make heavy use of FTIR-ATR for identification. We are a small laboratory with a limited...

07 January 2021 8,850 2 View

Follow up tests to explore interaction effects in a multiple logistic regression: can someone help explain my contradictory results?

I am conducting a logistic regression in order to examine whether there is an interaction between the number of stressors participants were currently experiencing (between 0-9) and their current...

20 December 2020 1,043 9 View

Is there a plausible explanation for the increased frequency of severe hurricanes in the southwest Atlantic Ocean other than climate change?

The Southeastern region of the United States of America, including Florida, Georgia, South Carolina, North Carolina, and the Caribbean archipelagos are being devastated by a higher number of...

16 November 2020 9,463 20 View

How to distinguish CA1 pyramidal cell vs. interneuron using voltage-clamp?

I am doing voltage-clamp experiments in CA1 pyramidal cells (mEPSCs; AMPA-NMDA ratio; LTP; etc) from acute hippocampal slices in mice. I want to make sure I am only recording from excitatory...

29 October 2020 1,098 2 View

How can I incorporate theory of planned behavior in developing interview questions?

I am conducting a qualitative research on smoking among youths in rural Appalachia. How do I incorporate the theory of planned behavior in developing open ended questions?

12 March 2020 9,538 4 View

Has anyone using organotypic hippocampal slice culture models observed holes in their tissue specimens between 6-12 days in vitro?

Our lab has noticed that after several tissue preparations for organotypic hippocampal slice cultures, some of our tissue is developing what appears to be large holes between the CA1 and dentate...

03 March 2020 3,981 3 View

What stimulation electrode impedance is optimal to trigger hippocampal fPSP & LTP?

I need to induce LTP in hippocampal acute brain slices (rodent) and measure extracellular fPSPs. Different bipolar stimulation electrodes available on the market have different impedances (0.1...

23 January 2020 883 3 View

What stimulation electrode impedance is optimal to trigger hippocampal fPSP & LTP?

I need to induce LTP in hippocampal acute brain slices (rodent) and measure extracellular fPSPs. Different bipolar stimulation electrodes available on the market have different impedances (0.1...

31 December 2019 4,997 3 View

How much Indian immigrants contribute in conadian economy?

28 November 2019 6,294 4 View

What is the most appropriate method of selecting pseudo-absences for species distribution modelling?

I have a presence dataset that is composed of satellite tracking data, in-person observations, and verified citizen-science sightings. The presence points span across the entire Caribbean, but...

10 November 2019 6,619 4 View

What is the most appropriate method of selecting pseudo-absences for species distribution modelling?

I have a presence dataset that is composed of satellite tracking data, in-person observations, and verified citizen-science sightings. The presence points span across the entire Caribbean, but...

10 November 2019 952 4 View

Does anyone have a protocol for determining fibre length using MCID or ImageJ?

Hi! I am trying to measure fibre length in several of regions throughout hippocampus in sections stained for dopamine beta hydroxylase imaged in bright field at (20x, 40x, and 60x) and was...

10 November 2019 1,962 3 View