Prepolymer based on PPG and Pure MDI with about 30% of excess MDI. It changed from transparent to cloudy after 3-4 days ....
You can eliminate the problem with a little DBTDL catalyst. (0.01 - 0.05%)
I have 4 subgroups that each one includes 3 to 5 items.For three of them(Subgroups) the Cronbach Alpha is acceptable but for one of them not.According to some literature If our items are less than...
11 December 2019 1,626 6 View
I am dealing with vibration signals which were acquired from different systems. They are mostly non-stationary and in some cases cyclostationary. What are the less expensive methods for removing...
20 August 2019 5,879 7 View
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
I need to spin a 120um thick film. My current procedure consists of spinning the polymer (about 20um), uv exposure, plasma etch, and then spinning another 20um thick layer, uv again, plasma etch...
10 February 2021 2,055 6 View
I am looking for a glassy material that hardens between 500-650 C degrees and is transparent in color. I will make a coating on metal sheet with this material. This material will also provide...
04 February 2021 3,835 4 View
I 'm trying to extract polysacharides from Aloe leaf and tried ethanol percipitation, but after getting the pellet. I used the protocol from following reference following the steps, but I don't...
27 January 2021 7,049 5 View
What's the criteria of comolete lysis of E.coli when breaking them using ultrasonic? What phenomena can help to determine if the cell are broken completely? From smell, transparence of the lysis...
07 January 2021 1,911 3 View
Hi! I am getting a higher fluorescence value for a lower concentration Umblifero solution than compared to a higher concentration solution. I am using the 0.001, 0.0008, 0.0006,0.0004, and 0.0002...
07 January 2021 4,353 5 View
Are there any particular uses for transparent wood other than visual appeal? The transparent wood is really cool to see, but what are the practical uses? Please provide examples. Happy New Year!
31 December 2020 2,479 4 View
I have a problem in obtaining a transparent gel and glass in an aluminoborosilicate glass-ceramic, which is synthesized by the sol-gel method. In fact, my sol is homogenous and transparent, but...
22 November 2020 1,397 2 View
I have experienced that SF11 glass (coated with some metal) turns transparent black/grey once metal gets removed with piranha solution. Please state the reason and prevention. Thanks in advance :)
20 October 2020 5,129 3 View
Dear Ladies and Gentlemen Im doing a Systematic Literature Review for my thesis. I already identified the articles for my review through a database. However there are many articles that weren't...
04 October 2020 7,438 3 View