Discover the world's scientific knowledge

Both qualitative and quantitative research articles would be of my interest. If not for Polish, other eastern European migrant groups as Lithuanian, Hungarian, Slovakian and so forth would be welcome. Preferably in Irish and UK context (Western Europe as well). 

I've heard that the Polish director Jerzy Grotowski, when asked why he had adapted Christopher Marlowe's Dr. Faustus as he did, said something to the effect that he wanted to say something different to a 20th century audience than Marlowe had to a 15th century one. Does anyone know the source and the exact wording of this quote?

I'm looking for published works on interference errors (with focus on taxonomy) in the POLISH literature of the 21 century (Polish students learning English and other languages). Any information? Please, help.

Dear all,

we are intensively trying to prepare pure silver samples for synchrotron-based X-ray photoemission electron microscopy (XPEEM) which requires very smooth surfaces. We are working on Ag silver single crystals with (111) and (110) crystallographic orientations and polycrystalline Ag discs. Since we are struggling to get our surface reproducibly polished, I would like to ask you if you can share your experience with the metallographic preparation of pure Ag surfaces. I'm highly interested in the different steps involved with as many details as possible (e.g. kind of paper/polishing cloth, lubricant, abrasive particles and their size, rpm, time, pressures applied, etc.).

In addition to manual grinding and polishing (incl. OPS), we have also tried to use a vibratory polisher and an ion polisher to finish the surfaces. The only thing we have not dared to do yet is electrochemical polishing/edging since commonly hazardous chemicals (e.g. NaCN) are used, based on the literature I have screened so far.

I am grateful for any hint that could help us to better prepare the surfaces in the future.

Kevin

I am about using (0.5 mm thickness) Ni plate as substrate for electroplating. In the literature, it is written that Ni plate is polished with alumina powder to a mirror finish. What kind of alumina (alpha, gamma) shall I use? Do I have to mix the alumina powder with water to make a paste or a slurry?

Hello everyone,

In the literature, it's very clear that when preparing otoliths for trace element analysis by LA-ICP-MS, people who section (cut) their otoliths subsequently polish them.

I am trying to determine if the polishing step is actually necessary, given logistical constraints in a current project that I'm participating in. Our current lab setup allows us to very accurately section otoliths and expose their core.

Cons of polishing are: (1) it's very time & labour intensive, (2) it potentially introduces surface contamination, either from the polishing surface or from other otoliths.

Pros of polishing are: (1) it evens out the otolith surface, which may be rough from the cutting process, (2) it increases the clarity of otolith microstructures (e.g. increments), (3) it makes sure the core is exposed (which we can already do using our cutting method).

What are your thoughts on this?

Greetings,

I am currently working on 1,5 hour lecture about aforementioned topic for my seminars.

I have found some general Polish literature about adsorption and several other publications, both in Polish and English, but I yet failed to find anything specific which would be accessible to students and for educational purposes. 

I am interested in both process engineering and apparatus design, so if anybody knows some books/publications/other stuff, I would be very grateful.

Kind regards,

Krzysztof Skrzypek

Preferably involving Poland (in English or Polish) but literature on other countries in the region (in English) would be welcome.

I'm writing about the text analysis for the translations. It still is in the research faze but I wanted to combine the theory of literature with the theory of translations.

Any feedback is welcome (preferably something connected to either German or Polish).

Dear Colleagues,

We are trying to polish Ti surface and used 320, 400, 600, 800, 1200, 1500 and 2000 grit SiC abrasive papers. 

 I have attached the SEM image, post polishing. The surface is still not smooth with artifacts (I guess abrasives) embedded.

Kindly suggest if need to further polish using diamond, colloidal silica and alumina suspension in order to achieve smooth and minimum rough titanium surfaces.

In literature, some authors have achieved mirror surfaces just by SiC papers. 

Thank you in advance,