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 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

Help me to clear problem in frequency domain (COMSOL) ?

Hi all I have a problem with eigenfrequency and frequency domain, I hope someone can help me to clear I using PDE Coefficient form, and solve my problem in 2D, with independent variable (u) =...

08 September 2017 202 1 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

Which is the most convenient manufacturing software for Additive Manufacturing?

Which tools can be used to generate machine codes for additive manufacturing?

02 March 2021 7,220 2 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

No title

Does anyone have the experience of using Taq Man probes in the QIAGEN Rotar- Gene qPCR machine?

01 March 2021 5,311 1 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View