Can the crystallinity of a polymer be changed without adding nucleating agents ?

I was working on a project where I had to work with isotactic PP (Repsol isplen g3e 002) and extrude different films with different levels of cystallinity without using any nucleating agent. So I...

10 July 2019 6,147 3 View

How to estimate the potassium sulphate in the organic fertilizers ?

Dear Experts, kindly suggest me a best method to estimate the percentage of potassium sulphate in the organic fertilizers.

09 April 2018 1,656 12 View

What is the major difference among charcoal, graphite, graphene and activated carbon?

Graphite is 3D Graphene is 2D charcoal and activated carbon

04 April 2018 5,609 4 View

How can I prepare pure NiO oxide from Ni2O3 black nickle oxide??

Is there any simple heat treatment steps? or should I follow any chemical methods?

05 December 2017 2,453 4 View

Is there a way to make Copper- CNT Composite ?

I'm trying to increase the ampacity of copper by adding CNT. Is there a Way to make copper - CNT matrix

14 September 2016 2,120 3 View

Does it possible to prepare the metal sulfides thin films, particularly the substrate temperature fixed at 400 c?

28 August 2016 5,245 1 View

Epperndorf biospectrophotometer vs. Nanodrop?

Can someone tell me if epperndorf biospectrophotometer with micro cuvette is really better than Nanodrop in nucleic acids quantification, even for small concentrations?

16 March 2016 9,458 5 View

Any suggestions on HLS synthesis of MATLAB code ?

Can anyone refer me a good link for hardware synthesis from matlab programme.. How to genetae valid C code from MATLAB and use it to genrate RTL synthesis report using VIVADO HLS Tool.

17 February 2015 9,314 4 View

Is anyone working on AMC (Artifial Magnetic Conductor)?

I have just started to work on AMC In CST Microwave studio. Can anyone tell me how to simulate this structure in CST TOOLS for a single patch? Your answer or suggestions are most welcomed.

12 February 2014 3,547 1 View

Why does the PMC surface not allow phase reversal of an EM wave ?

I'm very confused about when the Perfect Magnetic Conductors EM waves hit the surface but the electric field does not change phase in reverse. I don't know what concepts is behind this. Could...

12 February 2014 7,083 1 View

How to use measure capacitance change in COMSOL time dependent study ?

I want to measure change of capacitance due to relative displacement between two parallel plates in COMSOL. Distance between two plates changes with time. So I'm using a time dependent study but...

26 February 2021 8,567 3 View

ANCOVA controlling baseline in RCT - how to perform power analysis and sample size estimation?

Hi, I have a simple question. I am hoping to perform a power analysis/sample size estimation for an RCT. We will be controlling for baseline symptoms, and using post-treatment or change scores as...

19 February 2021 2,648 23 View

How to find the capacitive response frequency from the impedance plot?

I have done electrochemical impedance by using cyclic voltammetry for one organic material. from that, I plotted bode diagram. but actually, I am very confused about how to find the capacitive...

18 February 2021 3,023 3 View

How to get better phase shift in C-V curves for ferroelectric devices?

I tried to sweep my ferroelectric devices from -2V to 2V and then from 2V to -2V and The two hysteresis peaks are off by several microFarads. Should i increase bias voltage? I am doing these...

16 February 2021 8,514 2 View

Solution of 2D convection diffusion heat equation using MATLAB ?

This is a polymer heating problem. Polymer enters at around 180C (x=0) in the barrel. Also barrel initial temperature is 180 (t=0). Some heat Is added along whole length of barrel q. We have to...

15 February 2021 3,887 1 View

Nuances in the digital twin concept. Opinions?

Hello everyone, I am currently working on the state of the art of the digital twin concept, and after seeing the categorization made by Kritzinger, W. et al. (2018) [Digital Twin in...

14 February 2021 2,107 3 View

Defining effective diffusivity in porous zone and non-porous zone?

Hi all, I am working on methanol steam reforming using packed bed for hydrogen generation. I am using FLUENT software for CFD simulation. In reference paper, authors mentioned that effective mass...

10 February 2021 6,104 1 View

How to match the XRD of a compound for which there is no JCPDS file ? Is there any other characterization to claim the synthesis of desired compound?

I have synthesized LiMgF3 using the starting precursors LiF and MgF2 via solid state diffusion method. Now I am looking for some characterization to claim the desired product, as there is no...

09 February 2021 921 3 View

Is it possible to have a diffusion of oxygen from the glass substrate (SiO2) into the absorbent layer during annealing process?

02 February 2021 382 7 View

How do you determine at what concentration of antimicrobial should you subject the pathogen to?

I am making an antimicrobial extract from fungal metabolite but the fungi are not known. So I don't know at what concentration I should subject them to but what I do know I will test them against...

07 January 2021 897 6 View