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Hi, I have a sample of carbon paper. There is no coating on the carbon paper and it is high graphitic and electrically conductive. From trying to fit a peaks in C 1s spectrum, I think I have...
06 June 2023 122 6 View
Hi all, I am using a CFBG with the following parameters: Center wavelength = 1035nm D = 0.372 ps/nm 3dB reflection bandwidth = 18nm For SMFs, D is given in the units of ps/nm.km, GDD is simply:...
06 June 2023 3,737 3 View
I'm working at PDMS spin coating. My protocol is A and B mix with ratio of 10:1, then dilute with xylene 3/4. After degasing 30 minutes, I spin coat with 3000 rpm in 40 seconds on...
27 May 2023 5,627 1 View
Hi guys!! I'm new to Lumerical FDTD, and I'm trying to simulate Euler, Bezier and Hybrid bends (90 and 180 deg) bent waveguide. I'm facing some issues and I'm unsure if I'm proceeding correctly....
26 May 2023 7,656 6 View
I synthesized a compound that has a minor derivative phase. While obtaining the lattice parameters of the major phase via PowderX, a mismatch between the hkl values obtained in PowderX and the...
23 May 2023 1,333 1 View
I have an in-solution polymer that I want to extract from a high boiling point solvent. I've tried to crash it out by putting it in the refrigerator, and by adding a non-polar solvent. But I...
17 May 2023 5,859 3 View
CFU statistical analysis
16 May 2023 948 3 View
What are some good resources to learn about Fraunhofer diffraction farfield analysis using MATLAB/python?
11 May 2023 2,906 2 View
We have Streptomyces bacteria that were last used about a year ago and they were growing okay. Now i cant subculture theme from glycerol stocks stored at -20°C. It has been 8 days now, but there...
10 May 2023 7,403 2 View
I've just begun working with DFTB+ and have a set of crystal geometry optimizations completed, but I'm having trouble obtaining the crystal lattice parameters (A, B, C, Alpha, Beta, Gamma) from...
08 May 2023 4,222 2 View
I need information on the history of Rwanda
01 May 2023 1,715 0 View
the voltage and the chemical composition of electrolyte and also the time, to reveal the secondary dendrite arm spacing.
27 April 2023 4,369 0 View
Let's say I've a host-guest complex. I've two sets of Uv-Vis data, one where the host concentration is constant and the guest is varied and in the other the guest's concentration is constant and...
27 April 2023 1,155 2 View
The peaks in EDS appears less then 20Kev
25 April 2023 3,911 3 View
In SmartPLS, what are the most appropriate criteria to evaluate the goodness of fit for a model with both reflective and formative constructs, and how can you address issues related to the...
22 April 2023 4,205 1 View
I am trying to clean/hydroxylate the surface of a blank silicon chip (with SiO2 layer on surface) by using piranha. I have freshly prepared a 2.5:1 solution of piranha solution (with new peroxide...
19 April 2023 2,677 2 View
I noticed this when I ask Chat GPT questions. It somehow gets stuck in cycles of answers and does not really integrate prior history to a great degree. I thought it would be great if he remembered...
16 April 2023 5,210 1 View
Does the coating thickness affect the XRD peak intensity?
15 April 2023 8,459 6 View
crystallite size is usually determined by X- ray diffraction. Can it be cross verified by transmission ebsd (t-ebsd)?
12 April 2023 8,904 1 View
We have a problem with the starting JSM 6510. Program SemMain does not start. We get a message Not found SEM. Any idea how to solve this problem.
11 April 2023 7,880 2 View
Iron based alloys are magnetic in nature. What the problems encountered in characterizing iron based samples by SEM/EBSD and how to mitigate them ?
10 April 2023 9,970 3 View
I want to learn about the controlled and diffusion for CV values from electrochemical analysis. Please send any video or any document regarding the calculation. It will be useful for my future work
10 April 2023 2,051 0 View
Whether it should be with respect to E (reference) or E (open circuit) ? And what is the potential value we need to put? Whether we should consider the onset potential from LSV or at 0V?
10 April 2023 2,160 6 View
Hello I'm studying about semiconductor's defect density. So, i did ESR analysis and caculate g-factor but I don't know how to calcualte Spin density. I can't find theisis about this. Thanks for...
08 April 2023 2,989 0 View