How to make sure each cavity modes with same E-field distribution in COMSOL simulation?

In COMSOL Application Library, there is case about waveguide adapter. But there are some questions: 1) In boundary mode analysis, it just set to find only 1 mode and the S-parameter is...

12 January 2021 9,383 2 View

Where to get per-unit ecosystem services value coefficients for cities?

Per-unit ecosystem services value coefficients are wisely used in ecosystem services research, which is usually in the unit of "money per area for certain ecosystem type/services". The ecosystem...

06 January 2021 4,230 3 View

How to detect protein from dying cells?

Hello, experts. I have been struggling during my Western blot. Briefly, I transfected my gene into two different breast cancer cell lines. The introduction of my gene triggered cell death in one...

03 September 2020 8,799 3 View

What's the difference in antibodies used in ELISA,FACS and IHC?

Hello, I have a question about antibodies used in ELISA, FACS, and IHC. Assuming that an antibody is not labeled or conjugated, what's the difference among them? Can I treat those antibodies in...

27 July 2020 716 11 View

How can I generate Deek's funnel plot in R software, not in STATA?

I am conducting Diagnostic test accuracy meta-analysis. For publication bias, I want to conduct Deek's funnel plot test. I am using R software with mada ant meta packages. However, I found that...

16 May 2020 4,368 1 View

How to grow more BL21 auxothrophic strain cells?

Dear all, I have just purchased a BL21 auxothrophic strain (RF12) from Addgene. The cells come in the form of agar stab. I intend to grow more cells which will be ready to used for protein...

11 May 2020 8,384 3 View

Do you know a lipo battery that is smaller than 10mmX9mmX3mm??

Hi everyone, I'm looking for a small/tiny battery that can generate over 3.2V for biocompatible electronics. Currently, I'm using a 3.7V 12mAh Lipo battery and its size is 10mmX9mmX3mm (WLH). I...

08 March 2020 8,641 2 View

Does anybody know how to draw a pie chart with multiple layers?

I found this graph from literature and it's an excellent way to illustrate similar types of ideas in my opinion. I would like to draw this type of graph in my work but I couldn't find the proper...

14 February 2020 5,933 2 View

How to fit the Gaussian curve based on the moment of power spectrum?

I want to make a spectral correction curve of my light source to resemble the Gaussian spectrum. This literature said, ".. The dashed curve is a Gaussian fit with a center wavelength of 833 nm...

20 January 2020 8,950 2 View

Article of hierarchically structered porous nanofibers by electrospinning?

Hello folks I'm looking for the artice which shows difference of hierarchical structures between membranes and nanofibers. From introduction, I remember it kinda said: hierarchical membranes are...

15 September 2019 470 1 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

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 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

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

The procedure compute?

02 March 2021 5,204 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

How can I integrate a routing protocol in a tiny device (e.g. Raspberry Pi)?

Hi Community, I'm facing the issue of integration/compiling a new routing protocol in a WSN simulator. The final goal is to successfully add, configure this routing protocol in hardware devices...

01 March 2021 9,332 6 View