Why does the fatigue cracks initiate from surface to interior as the stress level decreases?

It is well known that low-cycle and high-cycle fatigue cracks initiate from the surface, while ultra-high cycle fatigue cracks initiate from the inside. I am very curious why this transformation...

17 January 2021 9,633 6 View

How to understand the chemo-mechanical coupling?

Recently, I came into contact with a new discipline named chemo-mechanical coupling. I found that chemo-mechanical coupling phenomena exist in many research areas, ranging from development of...

17 December 2020 1,065 3 View

I am working on membrane distillation model in COMSOL and I have some problems coming in it?

I need to add a latent heat flux of evaporation to the hot side boundary, which is a function of the pressure difference between the cold side and the hot side boundary.However, the pressure at...

16 December 2020 9,890 1 View

How to spin coat thin film for PEC devices (improve viscosity)?

I am trying to repeat the fabrication of BiVO4 (BVO) using the metal-organic deposition method. This is a well-reported way to make BVO thin film on FTO. So basically, I just dissolve Bi(NO3)3...

18 March 2020 8,405 7 View

Why ecology system allows virus exsit?

27 February 2020 5,293 3 View

Reliable PGP9.5 antibody to visualize intraepidermal nerve fibres in rat paw skin?

Hi, I'm looking for a reliable PGP9.5 antibody that can visualize INEF in rat paw skin. Most publications with good image on rat paw uses Ultraclone or AbD Serotec's rabbit anti-human antibody...

19 February 2020 979 2 View

Differential Scanning Calorimetry (DSC) protein aggregation?

I am working on Differential Scanning Calorimetry (DSC) for my protein. Mainly I want to check its melting temperature and enthalpy changes. I first tried two standard proteins ( BSA and...

17 February 2020 1,733 3 View

Why does DAB staining not work, given that TSA on the same tissue works?

I am staining for c-fos in ferret brain sections using this antibody (https://www.cellsignal.com/products/primary-antibodies/c-fos-9f6-rabbit-mab/2250). The sequence of ferret c-fos is highly...

09 January 2020 4,671 1 View

What gas flow rate should I choose for calcinating CaCO3 in the air ?

A lot of papers talk about calcination temperature, but little of them mention the gas flow rate. I find gas flow has a strong influence of my catalyst... I am preparing an organic Calcium...

18 November 2019 2,879 1 View

How to perform GC manual headspace sampling?

Hi everyone. May I know is there an established method for GC-FID headspace sampling? I did triplicates for the same concentration of analyte via manual sampling technique (using a air-tight gas...

17 July 2019 3,428 3 View

Is there any rich, publicly available English literary corpus?

Hi everyone. I am looking for a rich corpus in English literature, a one which includes literary prose ( e.g., novels or short stories) . can anyone propose a good one? Best regards Fatemeh

01 March 2021 1,970 2 View

How do I collect online measures in a same-different task?

The same-different task requires to subjects to indicate whether a pair of stimuli seen or heard are the same (say AA or BB) or different (say AB or BA). Researchers often collect offline measures...

20 February 2021 9,226 2 View

Which database is the most suitable for checking English bigrams frequency?

Which database is the most suitable for checking English bigrams frequency? We want to assess the frequency of different English graphemes. Most of the databases that we have checked seem to...

18 February 2021 4,565 3 View

How can we assess applied digital skills and soft skills through online examinations during COVID-19 semester?

The final qualification assessment for major programs is a strict regimen that involves different stages - oral and written exams, final project viva, internal and external review. How are ICT...

16 February 2021 1,762 8 View

Which and How to use teaching strategies and procedures to effectively integrate the four skills while teaching English Language Online?

As an inexperienced teacher in the field of online teaching, I have the fear of unconsciously ignoring one of the skills while focusing on not ignoring the other! Therefore, I wish to make use of...

09 February 2021 5,101 4 View

Can anyone recommend a scale to measure Bloom's taxonomy of learning styles?

I am looking for recommendations of scales (in English or Spanish) to measure learning styles according to Bloom's taxonomy of learning. Thank you in advance!

09 February 2021 1,419 8 View

How many authors?

Hello, I'm currently finalizing my Ph.D. proposal in Research in English Literature. I still have to apply to universities abroad. My question is can I pick two authors for my research (for...

08 February 2021 6,858 12 View

How would I get a "certificate of English approve" ?

I need a "certificate of English approve" for my manuscript to be published in a reputed journal. It should be from a native speaker.

04 February 2021 1,331 3 View

Where can I get these scientific reports?

Friend, can I ask you a question? Please, can you help me with the search for these pdf files that are scientific publications made in China? 1. Fengxing, Z., Zhizhen, G., Peiheng, C., Jinhua, M.,...

02 February 2021 6,261 5 View

Participation in questionnaire for PhD Thesis, any English, Chinese or Spanish speakers?

Hello! I am looking for Spanish, English and Chinese native speakers to participate in my final survey for my PhD thesis. https://claudiomastrangelo4.wixsite.com/phdlinguist1/research This is...

01 February 2021 4,177 10 View