Which is the best material for an electromagnet core?

I need to build a continuous electromagnet, B=1-2 T, narrow hysteresis loop, good linearity (to have the flux density easily adjustable). Application - MeV electron beam deflection. I'll be...

27 April 2020 4,345 2 View

Why is RPP30 used as the reference gene for haploid genome copy number?

I heard from a colleague that RPP30 is a gene that is very rarely duplicated or deleted in cancer cells, but I haven't been able to find any reference for that. Does anyone know of any research...

16 December 2018 8,251 1 View

Has anyone got diagonal false positives in ddPCR?

Since some time I've been getting quite a few droplets in my NTCs that have high and similar ch1 and ch2 amplitude, i.e. they find themselves on the diagonal of 2D plots. It didn't used to happen...

24 January 2017 3,503 7 View

Can anyone suggest method of sample preparation for GC-MS determination of PAHs in soil?

13 July 2016 7,224 5 View

Is there possibility to obtain electronic copy of the 1897 G. Longchamps paper ?

01 June 2016 4,522 3 View

Why in soft agar transformation assay, are NIH 3T3 cells (which are not transfected) forming colonies?

I start to run soft agar colony formation assay. I used NIH 3T3 cells not transfected, transfected with few variants of LTK, empty vector as control and KRAS expression construct as positive...

06 April 2015 4,986 6 View

What do we know about Initial Singularity?

Assuming that the Big Bang theory reflects the actual chronology of "The Birth of the Universe", imposes the question of whether The Big Bang makes sense without existence of The Initial...

12 October 2013 9,192 85 View

No title

I am trying to estimate the most likely number ok K using MCMC (Markov Chain Monte-Carlo Inference Of Clusters From Genotype Data) function in Geneland R-package by Gilles Guillot et al. I am a...

01 January 1970 6,537 3 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 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

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

I need dataset for recommandation system?

Hi every body I need to collect datasets from different source to work on recommendation system algorithms, could you advise me how collect data?

27 February 2021 7,063 7 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View