How does SEA software normally number subsystems?

Dear colleagues, What is the common subsystem numbering system in SEA modelling software (i.e. VA One, AutoSEA2)? Cheers, Feng

27 February 2021 7,073 3 View

Can a Golgi-stained dendritic spines picture processed by Image J be directly used for publication?

24 February 2021 3,348 2 View

Not able to charge-discharge Li-ion coin cell at higher C rate ?

I am working on cathode material. I have made different Li-ion coin cell against Li metal using commercial available cathode materials such as LCO,LMO, LFP and NMC and also with the lab...

18 February 2021 1,450 3 View

How can I calculate convective heat transfer coefficient from turbulent boundary layer properties?

I know many textbooks include empirical relations between Nu, Re_x, and Pr inside a turbulent boundary layer on a flat wall. However, I want to directly calculate h from known boundary layer...

19 January 2021 1,294 3 View

Can any one suggest the name of Litchi insect/predator?

Is it a type of Ambush bug or what? Thanks

14 January 2021 9,381 3 View

How can I produce Alpha-monopropionin and Alpha-monobutyrin in lab scale?

I understand that glycerol should be reacted with propaoiocic acid to produce monopropionin and with butyric acid to produce monobutyrin , if you can help with the reaction conditions based on 1...

13 January 2021 1,151 4 View

How to extract dry soils such as rocks and Debris from Sentinel-2 images using Google Earth Engine?

How to extract dry soils such as rocks and Debris from Sentinel-2 images using Google Earth Engine?

17 December 2020 6,600 2 View

Can i get help about Buffer composition in BN PAGE ?

Hi guys, I'm planning to do Blue Native PAGE. Are there any problems when i use buffer composition bellow ? Electrophoresis Buffer (1L) 3.0g Tris 14.4g Glycine 5x Sample Buffer...

09 December 2020 169 3 View

Is there any method to estimate scale of eddy viscosity?

Hi, I am currently studying turbulence theory, and eddy viscosity keeps bothering me. Is there any way to estimate scale of eddy viscosity? For example, textbook proposes \nu_T ~ ul, in which u...

02 December 2020 616 6 View

Any useful source to be prepared for a system engineer/instrumentation engineer role in a X-ray vendor company like Rigaku?

Hi, I'm a graduated Ph.D. trying to land a system engineer/instrumentation engineer position at an X-ray vendor company such as Rigaku and I have some questions about this: 1. How to standardize...

25 October 2020 7,673 4 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 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

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

How to interpolate from a time-series database ?

Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...

24 February 2021 9,105 2 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View

Helix antenna coupling problem?

Dealing with a helix antenna, made with flexible material and not rigid like using a PCB board or wire. At the beginning of the helix is too close to the ground plane, causing coupling. How can I...

21 February 2021 4,453 3 View

How to calculate the Atomic Polar Tensor using DFT ?

Dear friends, I am a beginner at DFT calculation. I have done a structure optimization using DFT- B3LYP/6-31G*, Nevertheless, I don't know How to calculate the Atomic Polar Tensor (APT) in...

17 February 2021 9,082 3 View