Acoustic shock wave from spark?

I'm working with an application where I'd like to detect a short sound from a distance up to 100 m. An ultrasonic chirp has been unreliable so far. I was contemplating the use of the snap of an...

30 September 2020 8,627 4 View

For what reason could a spike in backscatter occur from a cell growth quantifier when introducing hydrochloric acid to E. coli cultures?

As a part of my dissertation I am subjecting colonies of E. coli to varying pH levels using hydrochloric acid. The colonies are grown over cell growth quantifiers and six hours into growth, when...

18 March 2020 9,067 3 View

Systemic/social constructionist thinking about trauma?

I'm writing about trauma from a systemic/social constructionist perspective, and wanting to bring in ideas around the 'power threat, meaning framework' that challenge traditional bio-medical...

18 December 2018 2,235 7 View

How do heart-rate monitors work?

03 July 2017 1,651 8 View

Are Bode and Nyquist diagrams useful tools for digital controller analysis and design?

02 January 2016 666 4 View

Could you please help me with equiripple FIR filter design?

I would like to design a low-pass equiripple FIR filter, but I would also like to specify the (desired) group delay in the pass band; I would like to make this as low as feasibly possible, while...

24 October 2015 6,981 18 View

Does anyone have experience using Least-Mean-Squares (LMS), or some other recursive technique, for the estimation of a sinusoid's parameters?

23 September 2015 7,803 6 View

What are the main classes of techniques to estimate the time delay between (or cross correlate) two digital signals/channels?

02 August 2015 5,112 3 View

What values to assign undetectable HIV viral loads for statistical analysis?

I'm trying to analyse a paeds HIV cohort, and thinking of ways to describe the trend in HIV VL over time, and comparing average viral loads at the start and end of the study. Is there a...

05 August 2014 749 11 View

Is there a single design technique that can be used to derive the coefficients of digital IIR or FIR filters ?

01 January 1970 1,899 9 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What kind of intervention will be relevant to increase motivation among young sport trainees?

Any suggestion on what book to read is also welcome.

03 March 2021 1,646 4 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 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

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

Concrete compressive strength databases?

I am looking for datasets similar to this one: http://archive.ics.uci.edu/ml/datasets/Concrete+Compressive+Strength I am looking for concretes with different types of aggregates (Recycled,...

27 February 2021 6,801 3 View