May I use Minimal important difference (MID) in non-normal distribution?

MID is based on Standard deviation, consequently, I should not use it in non-normal distribution. Am I right? If yes, which test may replace MID?

13 December 2020 7,573 3 View

How to formulate interview questions for Turnover Intention?

Currently, I want to gather preliminary data about turnover intentions among employee of a company using interview method. My biggest concern is with the corona pandemic, possibly each of the...

14 May 2020 768 5 View

How to choose the best smooth algorithm for your data in Origin?

I have several curves of applied potential versus electric current with hundreds of points in each of them. I am trying to analyze their first and second derivatives, but they are too noisy to...

27 April 2020 5,932 2 View

Validation study: Can I join two samples from different regions of the same country?

I applied the same questionnaire in two samples (150 and 60 participants) from different regions from Brazil. I would like to join those samples, but I can not do measurement invariance (because...

10 March 2020 3,715 7 View

Is there any protocol for the lactic acid without the use of a kit?

protocol for colorimetric assay

17 February 2020 6,924 3 View

How can I check which constraints are violated (Concert - Cplex Studio 12.10 - C++)?

Currently, I am working on the implementation of a formulation for an optimization problem, at the moment I already have the MIP formulation implemented in C++ using Cplex studio 12.10 with the...

26 January 2020 7,887 1 View

Which is the best way to assess internal consistency in a non-normal data?

The sample coefficient alpha is affected by leptokurtic true score distributions, or skewed and/or kurtotic error score distributions. Therfore, I would like to found a alternative to Cronbach's...

05 March 2019 6,757 6 View

No title

31 October 2017 867 1 View

Using the Shiller PE Ratio (Cyclically Adjusted Price to Earnings - CAPE) on capital structure theory (trade-off, pecking order and market timing)?

Shiller PE Ratio seems to fit well as a proxy to test the Market Tiiming Theory along with the Market-to-Book (M/B). Since the M/B measures the managers 'perception of the company in the market in...

12 January 2017 4,941 2 View

How to reduce an Ester to aldehyde with no alcohol formation?

I'm using a procedure that uses morpholine and DIBAL-H. First I make the complex intermediate of the aluminum (1eq of DIBAL) with the morpholine (1eq) by stirring them for 3 hours. Then, I add my...

31 August 2016 5,531 21 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

How to determine solutionizing time for cast Al alloys?

For wrought alloys soaking time at solutionizing temperature is determined by thickness .Do we have such standards for cast Al alloys

23 February 2021 8,839 3 View

Which thermal conductivity test recommended for Ag-Cu nanofluid?

I have prepared Ag-Cu alloy with polymer coating upon it.... how can I measure thermal conductivity of it ?

22 February 2021 5,915 3 View

How to generate AA6061 alloy or any aluminium alloy crystal in material studio?

I need to carry out molecular dynamics simulation on Aluminium alloy. For this i need the crystal structure that which could be further replicated to form a structure.

22 February 2021 1,410 1 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

What are damage parameters for SMA while modelling on ABAQUS 2020?

I have given Elastic and Superelastic material properties, but I think we need to provide the damage parameters also. Please help me here.

16 February 2021 8,694 1 View

Are there alternatives to the Devarda alloy when estimating nitrogen?

Are there alternatives to the Devarda alloy when estimating nitrogen? devarda alloy is reducing the nitrate to ammonium

15 February 2021 8,838 3 View