Best books to self study number theory and especially diophantine equations?

Hi, I'm an undergraduate math student. I've already passed linear and abstract algebra and recently passed a course in elementary number theory and I really enjoyed it. now I wanna self-study more...

25 January 2021 4,279 17 View

How Can I Synthesis Nano-Sized Fe3O4 Hollow Spheres?

I want to synthesis Hollow Fe3O4 Nano Spheres. May Sb help me? I want their size is in the range of Nano (Less than 100nm)

26 December 2020 5,968 8 View

Whic step is good in Abaqus to model the incremental load behaviour, Explicit or Static?

I am modelling Hydraulic plunger load on the pipeline. the load variation is linear over the time. I am using Explict step eith linear amplitude curve for a certain time period. The problem with...

20 December 2020 869 2 View

How to collect data for Regional Research Study?

08 October 2020 8,003 4 View

How the presence or absence of punctuation in a data set will affect the outcome of an argument mining task by deep learning?

Annotating a big data-set for an Argument Mining task which is going to be processed by deep learning made me wondered if the presence or absence of punctuation(final dotes or a comma)affects the...

14 August 2020 5,379 1 View

How many paragraphs (or any other milestone applicable to a data set e.g. words) for an argument mining task of deep learning is required?

I am supposed to annotate 80 papers of a specific genre (40 pages on average) which is TIME-CONSUMING; this data set will be processed by deep learning. I am wondering if someone could help me...

10 August 2020 6,085 3 View

Can '0' value be assigned to missing values, particularly where I am considering creating an index using PCA through some proxies?

Greetings from my side. I am working on a panel of Asian countries. However, the biggest hurdle I am facing is missing values/data for financial inclusion. In many papers of financial inclusion,...

25 July 2020 8,164 3 View

What should I do after data collection : first step, and then...?

recently I have collected data( survey) and I want to analyze the data so for that I am going to prepare my data, I need your useful suggestion that what should be the first step after data...

03 November 2019 7,797 8 View

Can electrolytic deposition of Zirconia by hydroxide precursors lead to fabrication of ZrO?

I have prepared zirconia electrolytic thin films on NiTi alloy by cathodic electrodeposition process in zirconyl nitrate solutions and the films were then heat treated at 450 degree Centigrade ....

03 September 2019 9,361 2 View

Is Pt-Ni-Co complex(Mof) is suitable for HQ and CC Sensing?

Is Pt-Ni-Co complex(Mof) is suitable for HQ and CC Sensing, if yes then which electrolyte should be use for it? and what is pH and other condition?

30 July 2019 7,843 5 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

How can I publish a manuscript in free or low cost journal with good H-Index?

Dear all I am going to publish my manuscript which is from my thesis in a good H-Index journal but I found them very expensive(I don't have financial support) based on the exchange currency of my...

28 February 2021 7,800 6 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Fractional impervious surface (FIS) map ?

Need Help Does anyone Know how to make a Fractional impervious surface (FIS) map from NDVI map, in ArcGIS environment? Thanks in advance

24 February 2021 8,455 2 View