How to we can distinguish the smectic A,B and C LC phases by SAXS analysis in interdigitation type LC moleules/polymers in their smectic layer?

Actually in smectic A the layer spacing is equal to molecular length of the LC molecule, if the spacing is less than that we can give smectic X which is due to tilting of the molecule. At this...

11 December 2014 1,294 0 View

What is the importance of side chain functional polymers compared to the main chain polymers?

Actually, in literature, so many groups are concentrating on side chain liquid crystalline polymers than main chain LC polymers. What are the main advantages of side chain LC and functional...

11 December 2014 5,531 5 View

How can we distinguish the 1st and 2nd order phase transitions from DSC analysis?

Tg of the polymer material is a second order transition because it takes place some temperature range. But LC transitions like rubbery to smectic, smectic to nematic and nematic to isotropic...

11 December 2014 8,824 11 View

What is the reason for smectic LC textures are focal conic and nematic textures are threaded?

11 December 2014 7,454 2 View

Is liquid crystalline transition a 1st order or 2nd order transition?

Particularly in LC polymers, rubbery state to smectic, smc to nematic and LC to isotropic are always gives as peak type transitions in DSC (means that some enthalpy change takes place) accordingly...

11 December 2014 1,443 6 View

Which is better slolvent system for solution polymerization of acid group containing monomers?

I have tried with excess DMSO, DMF& THF+DMF GETget the poor yields.........how to i will get good yields

01 February 2012 6,716 1 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

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

Mediation path analysis - Can I run two seperate models?

I am wanting to run a serial mediation model with 2 x IVs, 2 x MVs, and 3 DPs (all continuous). Is it problematic to run 2 different models for each IV, keeping the MVs and DPs the same in each...

27 February 2021 5,681 3 View

Physical-chemical formation of stalactites/stalagmites. what promotes the formation/growth of these structures?

I know, or think I do, the basic idea behind these natural structures, as from what I know they form due to water dripping from the top leaving a salt deposit behind. But started to wonder about...

22 February 2021 1,400 4 View

Is there a suitable way to confine cell attachment area inside a multi-well plate?

Are there any types of cylindrical cell culture inserts that are designed to confine cell seeding area? Say, if I'm using a 12 well plate (3.5 cm^2/well), but only want to seed cells in the middle...

22 February 2021 7,127 4 View

Which are the most recent implications of ESL Academic Discourse in language teaching?

Language teachers at UTP (Language Department) are increasingly interested in the role of academic papers in the development of language (English) teaching practices. Research papers in Academic...

22 February 2021 1,388 4 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 a reference point be fixed to an attachment point in Abaqus?

I am currently trying to copy an assembly feature, that is present in an old version of the model I am using, onto a new model. The feature is a reference point that is fixed to an attachment...

16 February 2021 8,872 2 View

Can you suggest a good domain identification tool?

I am working on a project to identify sensitive information from text and I am looking into the below categories: -adult content -health -politics -crime Can someone suggest an open source tool...

16 February 2021 4,844 4 View

Are you looking for a quality online conference on teaching and learning technology?

This large international conference will be held online this year due to COVID. I am submitting a paper to the Technology Enhanced Language Learning track (8). It is about a topic I have never...

15 February 2021 1,975 15 View