What is the reason of weight gain in TGA curve of a HDPE polymer sample ?

HDPE samples were aged at higher temperatures in the presence of water and CO2 than the TGA test was performed in Nitrogen? Weight gain is seen in the curve? What could be the possible reason for...

16 January 2021 5,644 2 View

After extraction of essential oils from medicinal plants or plant parts, what are the possible ways to utilize the leftover?

If we extract the essential oil from a medicinal plant i.e., Ajwain seeds by hydro-distillation technique, it will yield about 2-3% essential oil. My question is about the remaining 97-98% portion...

16 December 2020 5,561 6 View

HOMER is used for optimal plant sizing and feasibility study across the globe, the optimal results are reliable?

Currently, solar installment at domestic level is at peak without any feasibility study. I used HOMER for an optimal plant size for green energy generation at community level. Please guide me...

15 November 2020 1,121 8 View

Why material with same structure and composition performs differently in RAMAN Spectroscopy?

I was carrying out RAMAN Spectroscopy for MOFs. I have been carried out the XRD and EDX analysis for three samples synthesized by a different protocol. The crystal structure and chemical...

13 September 2020 7,167 5 View

How can we determine doping concentration?

How can I find the exact doping concentration in a chemically synthesized material? As there is no possible reaction which produces the same doping concentration of initially added ratio in a...

02 September 2020 3,613 11 View

Why sample disappear during SEM imaging?

One of my colleagues is working on the synthesis of metal oxide nanoparticle. We got a surprising issue in SEM analysis. When we start SEM imaging the sample got disappear within few second while...

27 August 2020 1,949 6 View

How to get an XRD peak for 2nd coat (MgF2), which is coated on Cadmium Telluride glass substrate?

We coated Magnisum Fluoride (1.5 Molar) solution and Spin coated on Cadmium Telluride (CdTe) glass plate. Anealed (heated in oven) at 70*Celcius for 2 hours and then sent for XRD. But we got only...

19 August 2020 1,678 3 View

How to check number of publications and citations per year on a specific keywords?

Hi, Can somebody please explain how to collect the statics of number of publications and citations per year on a specific keyword? For example, I want to know the exact number of publications and...

22 July 2020 214 2 View

By reducing normal force the cofficient of friction COF increases in some cases. what is the main reason or reasons for this behaviour?

Tribology test conditions: Substrate thermoplastic, Counterpart steel ball. Using 1N normal force and 0.5N normal force, Speed 100 mm/s

21 July 2020 5,746 4 View

How to measure (or predict) health of a DC contactor or a DC relay ?

I need help in understanding the mechanism to measure/estimate health of DC contactors and DC relays used in industrial grade power systems. What are the mechanisms and tools used for this purpose...

10 May 2020 1,452 3 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

Ideas for Phd's Thesis on pricing (Marketing)?

Hi everyone, I'm studying Marketing and I would like to write my PhD thesis on the topic of pricing. Any specific ideas?

02 March 2021 9,706 5 View

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02 March 2021 3,060 3 View

How does one access the Cranet survey data on HRM practices?

Hello, The Cranet website does not provide any lead to the data obtained from their multinational survey on HRM practices. Any help on accessing the data would be most appreciated. Thank...

01 March 2021 9,536 3 View

Suggestions for occupational stress surveys?

I am currently writing a masters thesis on reasons for occupational stress in the early childhood classroom, and want to include a short survey assessing participants work-related stress levels. I...

24 February 2021 8,678 2 View

What is difference between In-line transmission (%) and Total transmission (%) value of optically transparent Ceramics?

I am working on transparent/translucent zirconia-based ceramics. In many papers, I have seen that they are reporting both In-line transmission (%) & Total transmission (%) value of...

20 February 2021 9,405 6 View

Can I do two kinds of mixed method in explanatory research?

Dear distinguish professors and scholars, I have a research in measuring two kinds: think tank capacity and research impact on policy. Can I do two kinds of mixed methods in order to find, "Is...

20 February 2021 6,897 1 View

Does qualitative research using closed and open ended survey and semi structured interviews qualify as triangulation?

I am using qualitative research to look at employee motivation. I will use a closed and open ended survey (for biodata information and general views to motivation) and semi structured interviews...

18 February 2021 436 11 View

Should I include less important items in con-joint survey experiment?

I plan to do a conjoint survey experiment in which I randomly change attributes of hypothetical job candidates and show two types of potential candidates with different attributes. Then, I ask...

16 February 2021 5,812 1 View

How can we measure the reliability and validity of our survey questionnaire?

We are conducting survey research on COVID-19 misinformation among students. How can we validate our survey for it to produce valid and reliable data? Also, what statistical tools can we use to...

16 February 2021 678 3 View