I can't understand that my modal analysis results about effective mass. Why does the effective mass in the direction of rot exceed the total mass?

hello, I'm student who study about modal analysis, I tried modal analysis to simple 1 floored model that have 4 legs. Total mass is almost 2kg. As a result of the analysis, the effective mass in...

31 March 2020 7,709 4 View

Why dose carbon of carbonic acid have a positive charge??

Dipole moment of carbonic acid is zero. However, when CO2 dissolves in water, (CO2+H2O->H2CO3) Carbon of CO2 is attacked by unshared eletron pair of H2O. Why????

07 March 2019 322 4 View

How to adjust p-values obtained by pairwise comparison of treatments, but I have multiple treatments?

My experiment have several treatments (e.g. A, B, and C). If I have interest in differentially expressed genes (DEGs) over all treatments, ANOVA will be good enough. However, my major focus is...

24 November 2017 9,855 4 View

How can I explain different effect of overexpression on exogenous end endogenous mRNA?

Recently, I've got very strange phenomena. When I transfected a plasmid expressing protein 'A' with a plasmid expressing reporter mRNAs, which harbor specific 3' UTR, into HeLa cells,...

25 November 2015 8,344 2 View

How can I extract nanorods from nanopores of anodic aluminum oxide?

i make nanorod in porous anodic aluminum oxide and then i removed Al2O3 to extract that rod. but, i found white precipitate after centrifuge which is not nanorod. how can i remove that?

13 April 2015 9,206 3 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

How to improve the adhesion between germanium and silicon monoxide thin film layers using EBEAM evaporation?

I want to deposit multilayer coating of germanium and silicon monoxide on silicon wafer using ebeam evaporation?

21 February 2021 2,141 3 View

How can I measure the thickness of thin layers deposited on textured glass susbtrates?

I want to measure the thickness of aluminum oxide and titanium oxide layers deposited on textured glass substates. The layer thicknesses are typically below 100nm.

21 February 2021 5,465 4 View

How do I calculate absorption coefficient of my thin film if I dont know the thickness? Or how can I calculate the thickness of my sample?

I have done Uv-vis characterisation of my thin film and have received absorbance and transmittance data. Now I want to calculate the absorption coefficient but I dont know the thickness of my...

21 February 2021 7,148 8 View

How to construct different filler shape in MD simulations?

Is there any way to construct different initial filler shapes like triangle, square, rectangle, pillar, and tube in any simulation software.

20 February 2021 1,750 1 View

Can fractal dimension of thin film surfaces affects the electrons energy states?

As fractal dimension of a thin film surface implies the irregularity in the surface. Is it possible that the energy states of the electrons are also affected by the fractal dimension?

19 February 2021 5,509 3 View

Is nanotechnology part of materials science? Is it possible to obtain Pico technology and move from hypothesis to application?

Pico-scale This is three orders of magnitude smaller than a nanometer (and thus most nanotechnology) and two orders of magnitude smaller than most chemistry transformations and measurements. Pico...

18 February 2021 4,540 5 View