Is there an open source free software for text mining and sentiment analysis?

I am looking for a free software for text mining and sentiment analysis for my research on customer review mining (it involves calculating polarity of attributes,opinion oriented information...

25 February 2021 1,920 6 View

Interdendritic phase coarsens during homogenization?

Hello Is it possible for the micro-segregation (non-equilibrium phases) coarsen during the homogenization treatment? There is an obvious reduction in the quantity, but some of the phases remained...

19 September 2020 4,985 3 View

Could you please suggest me a good topic for my research paper (Tensor calculus with its applications in General relativity)??

i am currently working on topics in Tensor calculus with its applications in General relativity - im looking to write a research paper with whatever little background i have - Could you please...

18 September 2020 6,278 2 View

How many hypotheses should I write for my study?

For my experimental study I created a course material for the visually challenged and implemented it by designing a learning model. Both are unique. Should I write two hypotheses, one for the...

25 March 2019 7,687 6 View

Does Koops media supports the growth of Ammonia oxidizers alone?

Does koops media supports the growth of Ammonia oxidizing bacteria only? Or other heterotrophic microbes will also grow in the same media? Similarly Watson and Waterbury media supports only NOB...

18 March 2019 4,176 1 View

Where do I write about the Mnemonic Model I created and tested in an experimental study in the thesis? In Methodology section or a separate chapter?

The methodology section of the thesis tells about the details, stages and the tools used in the experimental study. If I have created a Model and tested the efficacy, in which chapter should I...

06 February 2019 4,391 2 View

Grid size in material diffusion simulation - Physical significance?

10 October 2018 8,213 1 View

Chemical mobility from Darken's equation?

19 June 2018 8,585 3 View

Why 002 reflections are absent in spinel oxides (FCC)?

For example, magnetite (Fe3O4) does not contain 002 reflections but contains 004 reflections, though it has FCC structure. Is it because of the structure factor? In my case, I have an oxide that...

29 April 2018 2,053 4 View

What does getting a negative value for Cronbach's alpha mean in a Multiple choice questionnaire with dichotomous result (correct/wrong)?

04 June 2017 7,078 4 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View

Why anti-CD20 or other antibodies are not used to label target cells in flow cytometry t-cell cytotoxicity assay?

New to the field of cell therapy. Why fluorescent-labeled antibodies to target cell antigens are not used for determining target cell count by flow cytometry in cytotoxicity assay (eg car-t)? Cell...

21 February 2021 3,278 3 View

How to calculate time-averaged fields from Ansys CFX solver?

I would appreciate any comments on the following problem. I need to calculate mean fields (e.g. pressure, velocity and vorticity), for which I activate Trn Stats tab in CFX-Pre. However, what I...

21 February 2021 8,548 7 View

Which software is best to analyse multi-phase fluid flows ?

Hello everyone, hope all is good. I want to analyse multi-phase fluid flow through pipe, which software is best to do so ?

21 February 2021 4,230 8 View

Can anyone help with an Accurate Diffuser Expansion Loss formula for rectangular shaped diffusers in turbulent flow regime?

I have tried Idelchik's Handbook of Hydraulic Resistance 4th Edition (2007 page 300) formulas and across some range the formulas are reported valid for, the law of conservation of energy is...

20 February 2021 2,504 1 View

Oil red O protocol for flow cytometry?

18 February 2021 4,214 3 View

How to read a flow cytometry graph detailing cell cycle?

Hello everyone, When determining cells in different stages of the cell cycle, cells are stain for Brdu and Propidium Iodide. I understand how PI can be used to discriminate between G1 and S/G2...

18 February 2021 3,920 3 View