What is the history of high-resolution mass spectrometry, especially magnetic sector?

I am interested in high-res MS history, especially with regards to the large magnetic sector instruments back in the 50's to 80's. I especially want to know what kind of resolution they could...

10 November 2017 3,338 6 View

Contrast Root Cause Analysis with discovery (non-trageted) analysis?

There are two distinct ways of attacking complex problems with adverse outcomes. One is top-down or hypothesis driven; in engineering it is called root cause corrective action (RCCA). A second...

10 November 2017 1,365 0 View

Does anyone have a good reference for using QQ-plots for imputing left censored data?

05 June 2016 3,021 7 View

Does anyone know of new articles that discuss the peer review process?

I have been trying to develop guidance for my group for doing thorough peer reviews. Would like to get some input from other groups

02 March 2013 651 13 View

Endogenously produced ethanol?

Is there a condition in humans wherein they generate endogenous ethanol at sufficient quantities to interfere with alcohol analyzers? I have heard of this as a defense for drunk driving, but it...

09 October 2012 6,784 6 View

How does zeolite based oxygen enrichment work?

There are methods for enriching oxygen from air by forward and reverse flushing of a zeolite bed - is it used in aircrafts? What is the mechanism that differentially retains N2 and passes O2?

06 July 2012 9,122 6 View

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 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

Open Source IoT Simulators supported by Machine Learning?

Dear Research Gaters, Let me first add context to the question. I am looking to simulate the waste management system and resources of a city. The hardware devices I need to simulate include,...

21 February 2021 2,333 4 View

How do you integrate the 'friction' variable Xi in the Nose - Hoover Thermostat in order to apply it to a molecular dynamics simulation?

Everything tells you the derivative of Xi, but not how integrate the value to implement it into a simulation. How do you do this?

21 February 2021 6,481 1 View

What type of pressure sensor are usually used in microfluidics?

My team is designing a dual channel microfluidic chip that runs air and water. I think we've decided on the NE1000 syringe pump for it's versatility and feedback control. We will be ordering the...

18 February 2021 9,928 2 View

How to realize refractive index values of 1 to 1.1?

Hello researchers! While studying the literature on refractive index sensors, most of the articles simulate their devices with a refractive index ranging from 1 to 1.1, with small steps in...

17 February 2021 1,578 4 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

What should a smart water system look like?

Our team is designing a smart water C&C dashboard for a smart city initiative. As we look into the current smart water system landscape, we couldn't reconcile to a definitive solution that...

16 February 2021 1,094 3 View

Receiving very less number of hits and events in acoustic emission tests?

I am doing a three point bend test with concrete specimen of dimension 280mm*90mm*90mm. I am putting 2 sensors near the notch with 3cms away from both the sides. the experiment ran for 20 mins but...

13 February 2021 2,990 1 View

How to increase coupling range (distance between reader and sensor coils) in LC resonance circuit?

Hello great researchers, I am working on a wireless pressure monitoring project where sensing part is actually an LC resonance sensor and I am using a planar coil as a reader to get wireless...

11 February 2021 4,148 5 View