Why can I not use mathematic expression with "j" ( complex number) in MathCAD ?

10 November 2018 4,907 1 View

Which is type of "selective switch valve" for microfluidic application ?

Hi all experienced scientists I am doing a sensing measurement based on microfluidic device. As I sketched in my attached file, I have one buffer solution (PBS) and nearly 8 bacteria samples....

07 August 2018 7,478 0 View

Is N-methacryloyl l-histidine methylester (MAH) still available ?

Hi all scientist I am doing my research work related to polymer, so I need to use N-methacryloyl l-histidine methylester (MAH) chemical. Unfortunately, I can not find any supplier for it. Does...

05 June 2018 8,348 0 View

Why the MIP layer was cracked under UV-exposing ?

Hi everyone I am doing with MIP technique now and, I tried to following to attached paper for MIP chemicals and protocols. To practice MIP, I tried to coat a thin layer of polymer solution on a...

02 March 2018 4,816 0 View

Etching AT-cut type of Quartz Wafer ?

Hi all scientists I am gonna do a etching process with AT-cut Quartz wafer for my QCM sensor. My plate thickness is 160um, and its shape is 200 x 200 mm. Etching area will be circular shape with...

11 December 2017 9,409 0 View

How to double-side mask aligment for 1 inch wafer ?

Hi all I need to fabricate my device on quartz wafer with 1 inch in diameter and both electrodes on top and bottom side must be high concentric. So I need do this work on double-side mask...

09 October 2017 181 0 View

How to define the Quartz material in ANSYS ?

Hi Scientists I gonna do a simulation for my device ( with Quartz material, AT-cut type), using ANSYS. But I dont know how to create or define this material in ANSYS ? Hence, I post this my...

09 October 2017 5,644 0 View

Implementation of PDE equation in COMSOL ?

08 September 2017 6,808 0 View

Can I apply Matthieu equation for the rectangular plate?

Hi Scientist I am doing a design my sensor based on the rectangular quartz plate. I reviewed some paper about introduced Mathieu equation for analysing the vibration of the plate, but all plate in...

08 September 2017 3,890 0 View

Which type of OTA have "negative transconductance " ?

08 September 2017 7,803 11 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

Adherance of Polyaniline coating over stainless steel?

Is the electropolymerisation of polyaniline coating over stainless steel (SS) via Cyclic voltammetry technique is really adherant? Else how to improve the adhesion of the coating, whether any...

01 March 2021 8,220 2 View