Literature on snowflake aggregation?

I am looking for literature suggestions on the topic of snow aggregation. My main interest is on the aggregation process itself (rather than papers describing aggregate snowflakes characteristics)...

19 February 2021 2,197 3 View

ASTM or ISO standard test for duplex coatings?

Dear all, I would like to conduct scratch and linear reciprocating tribo-test on my magensium alloy, which has a plasma electrolytic oxide (PEO) layer of about 20 um and 10 - 20 um of Parylene...

25 January 2021 9,709 2 View

Does anyone know about a good article/book about the correlation between the water crisis and the macroeconomic decisions?

I'm writing a thesis about the macroeconomic issues to face during a water crisis

25 December 2020 6,321 1 View

Any data or studies available on wall thermal insulation with glass bottles?

I am searching for data and studies about thermal performances of walls insulated using recycled unbroken glass bottles, to be used as part of the structure itself, or as filling material of a...

29 November 2020 7,792 2 View

EDX sample preparation of a coating/metal cross section?

The sample is piece a magnesium alloy (dimension: length - 20mm, width - 9.7mm, thickness - 3.5mm), which is coated with epoxy and silicone coating on each side of the surface. The coatings do not...

05 January 2020 3,375 3 View

How to modify a plasmid DNA with a thiol group or any functional groups for coupling?

I am trying to conjugate a plasmid DNA with an -SH activated PEG. The thiol group modification is possible for linear single strand DNA. I wonder if it possible to introduce in a plasmid DNA, too.

03 August 2019 135 1 View

Cloudy debris in the middle of a flask??

Hi everybody, I've started to grow up bacteria in liquid medium in order to set up a growth curve but everytime I try to start it there is this cloud in the middle of the flask. The bacteria...

26 March 2018 4,656 2 View

What are the basics to maintain a micropipette in good working conditions?

26 November 2014 9,393 4 View

Does anybody know the difference between GISTIC 2.0 and ABSOLUTE algorithms, if there is any?

While reading the literature,it is not very clear to me the rationale of using one or the another.

22 June 2014 4,609 1 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

OpenBCI eeg--has anyone used them?

I'm looking to try out an off-the-shelf EEG set for some exploratory work. Curious if anyone has used the OpenBCI, and how much set-up work is required. I've heard they are more difficult to get...

01 March 2021 4,128 3 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

How to model the battery pack in PSIM or PSCAD?

Hello, I have simulated a single battery cell using Thevenin equivalent circuit. For a battery pack, I have a large number of cells connected in series and parallel connections. Is there any way...

28 February 2021 2,116 1 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 to prevent ANFIS Model from negative prediction values in MATLAB?

I have input and output data set for "ANFIS modeling in MATLAB", and I am getting some negative predicted values of output in testing. However, the predicted values of output in training are...

28 February 2021 3,459 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View