Maps of african eezs?

Hi Anyone! I need a public domain map of the EEZs of sub-Saharan Africa... any help??? Thanks!

13 January 2021 7,758 5 View

How to solve a non linear system?

Hi everybody, I have a non linear system of 9 equations: F=A(F)F+B(F)g(F) F is a 9x1 vector of the unknowns, A(F) and B(F) are 9x9 matrixes which depend on F ang g(F) is a 9x1 vector which...

12 November 2020 9,972 6 View

Why is 'Scale' considered a spatial continuum, but not a dimension of space?

Consider the books 'Cosmic View; The Universe in 40 Jumps' by Kees Boeke (1957 - the original inspiration for the others), 'Sizing Up the Universe: The Cosmos in Perspective' by Gott, J. Richard...

27 December 2019 1,030 1 View

What ARIMA model is indicated when, after taking first differences, the ACF and PACF both cut off after a significant first lag?

For my dissertation, I am looking at a time series of retail sales and want to identify an ARMA model to fit the data. I have differenced the original data series as it was non-stationary and now...

28 March 2019 3,815 7 View

What are some researchable PHD topics one would consider in digital finance for a finance students?

This for a thesis

05 February 2019 1,254 3 View

What is the appropriate statistical method to test a new DNA sequencing method?

Good Day All, I have new molecular-based diagnostic test which focuses on detecting SNPs in a 10 different genes. The DNA diagnostic test is actually probe based so it is looking at relatively...

22 May 2018 6,225 1 View

I am designing a microfluidics device for PCR. I am wanting to order PDMS for the substrate, however am unsure on which varitation of it to order?

There are many different terminations of PDMS , hydroxy, amine etc. Does this affect the final chip? Unless I plan on using the functional groups will it even make a difference?

19 February 2018 2,427 1 View

Scoring the PSSM questionnaire?

I am thinking of using the PSSM as a data source for my Action Research Dissertation. Is there a rubric for scoring the questionnaire? Thanks! Don

06 November 2017 2,411 2 View

How do you work with pseudoislets from cell lines?

10 July 2017 8,603 4 View

Best tissue type for DNA extraction from formalin fixed samples

I am about to attempt to get genomic DNA (for genotyping by sequencing) from frogs that were fixed in formalin and subsequently stored in EtOH, and I was wondering if anyone had recommendations on...

05 March 2017 9,525 1 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

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 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

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

Please. Could you help be in implementing Fractal Discrete Cosine Transform algorithm in Matlab?

I do need the Matlab code of Fractal Discrete Cosine Transform (FDCT). Can anyone who has already implement this code, help me with the implementation of this transform?

24 February 2021 5,602 2 View

Can I ask did any good platform or journals for learning the calcluation on the reference governors and command governor?

Recently I face some problems with the mathematical ( calculation) on the reference governor and command governor, so I need some help from you all to get which platform or journal can let me...

23 February 2021 7,746 2 View

Special issue on PLS-SEM in Mathematics. Are you interested?

21 February 2021 5,601 3 View

What is the better software for approximation of 3D surface with equations?

I have a massive of x, y, z coordinates of 2D surface in 3D space, which builded in Ansys HFSS or AutoCAD. How can I get the analitical aproximation of this surface by formulas?

21 February 2021 3,444 7 View

How to calculate the Atomic Polar Tensor using DFT ?

Dear friends, I am a beginner at DFT calculation. I have done a structure optimization using DFT- B3LYP/6-31G*, Nevertheless, I don't know How to calculate the Atomic Polar Tensor (APT) in...

17 February 2021 9,082 3 View

How can I obtain a sine function along a path with known equation?

I have a symmetric airfoil with known equation. Now a sine function passes along the airfoil equation like following figure. I want to find the sine function in (x,y) coordinate system.

17 February 2021 1,594 12 View