How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 View

How to increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View

Why is my CFD problem (mini heat sink rectangular channel) not converging while having good quality mesh?

My CFD problem is having two interconnected rectangular channel, which is known as mini heat sink. I have already performed parallel flow inside of an interconnected mini heat sink. However, I...

19 February 2021 3,209 3 View

Polyelectrolyte complex ion pairing through IR?

Is it possible to observe ion pairing (contact ion or solvent separated ion) of polyelectrolyte complexes through liquid FTIR? Although the PECs have been widely studied in the last two decades, I...

12 November 2020 4,800 1 View

How can I get better picture for the attached TEM Image??

I used TEM equipped with tungsten gun to obtain attached image (several other too, like shown). Side blotting technique followed by negative staining (1% PTA for 30 sec) was used. I cannot get the...

31 October 2020 1,902 5 View

How can I get Nusselt number for mini rectangular channels using fluent?

I am validating my CFD mini rectangular channel model. For that purpose, I need to know how to get the Nu number accurately. For Calculating Nusselt no. from fluent post-processing as follows:...

24 October 2020 3,444 5 View

What is the possible biological explanation of the mutational pressure as a driving force on the evolution of particular species ?

In one analysis major role of mutation pressure was observed in codon usage bias of some species

19 October 2020 4,755 1 View

Do family demographic processes link socioeconomic status to men's physical health?

Previous literature suggests that lower socioeconomic status (SES) men through higher family sociodemographic pressure and lower capacity of stress control, compared to higher SES men, are more...

08 October 2020 2,740 1 View

Is poorer capital at home and at school linking minority children's lower SES to their underachievement?

14 September 2020 8,297 4 View

Which R package is better for Micro array gene expression data analysis?

I am trying to analyze the micro array gene expression data between control and treatment. I would like to use R programming package. Which package is better and how can i use. I want step by step...

23 August 2020 8,111 7 View

What are some alternatives to the Self-Directed Learning Readiness Scale (SDLRS) developed by Dr. Lucy L. Guglielmino?

The Self-Directed Learning Readiness Scale (SDLRS), also known as the Learning Preference Assessment (LPA), was developed by Dr. Lucy M. Guglielmino in 1977 to measure learners' attitudes of and...

15 February 2021 3,095 4 View

I'm doing research concerning teacher burnout and COVID-19. Can you please answer my questions (see description)?

Dear friends! I am holding a research on teacher burnout during the COVID-19 pandemic. Please answer my questions: 1. Country you come from 2. Years of working as a teacher 3. Have you experienced...

07 February 2021 8,325 10 View

How to calculate response rate if the number of eligible respondents is not available?

Hi All, I am carrying out an international research with clinicians (speech-language pathologists/ therapists). International professional associations will be distributing the questionnaire link...

02 February 2021 5,306 3 View

How is it possible to rank variables using Likert scale?

Hello Everyone, I have a questionnaire of a 3-point Likert scale for an overall evaluation for a service, and several detailed attributes evaluation of that service. For example: Overall...

31 January 2021 9,612 8 View

How do you multiple impute item scores and perform a linear regression on factor scores?

I am developing a questionnaire and first performing an exploratory factor analysis. After I have the final factor structure, I plan on regressing the factor scores on some demographic covariates....

18 January 2021 883 8 View

How do I access Domestic Violence Attitude Scales or find them for free?

Hi, I'm a postgraduate student currently starting up a research project on attitudes towards domestic violence (DV). The study will aim to compare cultural differences between attitudes and...

31 December 2020 781 3 View

What is the best Quality of Life questionnaire for chronic patients?

Hello! I am looking for a SHORT questionnaire/scale to measure Quality of Life in chronic patients (e.g. fibromyalgia, or multiple sclerosis). Ideally, validated for English and Spanish speakers....

22 December 2020 9,962 4 View

Is it always mandatory to report and test the validity and reliability of a newly developed questionnaire?

Hello everyone! Currently, I am doing an observational, cross-sectional study on knowledge, atittude, and practice towards thalassemia in Indonesia. My area of interest is in population studies....

16 December 2020 3,725 16 View

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 do Factor analysis for extracting items - side by side column questions ?

Hi everyone, I have side by side questions in the questionnaire. There are total 29 questions. Each question has more than 11 items and three side by side columns to capture different contexts...

02 December 2020 5,499 3 View