How to prepare OH- terminated Si Wafer?

Hi, Folks. I am working on the ALD project to deposit Al2O3 on the Si wafer from TMA and Water. I have struggled with the preparation of OH- terminated Si wafer. I have both Si(1 0 0) and...

08 February 2021 8,792 2 View

Why does the fatigue cracks initiate from surface to interior as the stress level decreases?

It is well known that low-cycle and high-cycle fatigue cracks initiate from the surface, while ultra-high cycle fatigue cracks initiate from the inside. I am very curious why this transformation...

17 January 2021 9,633 6 View

Real Time PCR: What is the justification for acceptable variance within 3 Ct? Is there any publication on this variance?

Hi all, I was not able to find any source with evidential justification for why the acceptable variance for internal control should be within 3 Ct and not other numbers of cycle of amplification....

17 December 2020 9,481 1 View

How to understand the chemo-mechanical coupling?

Recently, I came into contact with a new discipline named chemo-mechanical coupling. I found that chemo-mechanical coupling phenomena exist in many research areas, ranging from development of...

17 December 2020 1,065 3 View

I am working on membrane distillation model in COMSOL and I have some problems coming in it?

I need to add a latent heat flux of evaporation to the hot side boundary, which is a function of the pressure difference between the cold side and the hot side boundary.However, the pressure at...

16 December 2020 9,890 1 View

Methods for multivariate discrete-time time series clustering?

Can somebody suggest a popular method for clustering multivariate discrete-time time-series data ? My dataset is about water quality parameters taken in 6 stations by seasons in 5 years . Thank...

09 December 2020 6,933 12 View

In Multivariable linear regression model, results should be presented in standardized beta coefficient OR non standardized beta coefficient?

In the Multivariable linear regression model, results should be presented in a standardized beta coefficient OR non-standardized beta coefficient? I presented a standardized beta coefficient in...

16 October 2020 6,494 5 View

Can you help complete a survey, if you know/ have used LPWAN technology in smart cities/transportation applications?

IoT/LPWAN User Survey Link: https://lnkd.in/dVdK-ea ----------------- Dear Sir/Madam, We are surveying the use of Low-Power Wide-Area Network (LPWAN) technologies (e.g., LoRa, SigFox, NB-IoT) for...

05 August 2020 9,001 3 View

How can I get the correct J-integral during crack propagation?

Hi. I'm learning GTN fracture mechanics in Abaqus/Explicit. But I can't get J-integral during crack propagation. Please, help me.

07 May 2020 6,589 3 View

What Could Humanities & Social Sciences Possibly Teach Us in a Time Such as the Corona Crisis?

In this post-millennial world of cosmopolitanism, globalisation, and world literature, one wonders if the present moment isn't the perfect opportunity to take stock of where our interests and...

26 April 2020 5,842 0 View

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 3 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

What is the ideal value of UACI for image encryption scheme?

UACI - Unified Averaged Changed Intensity between cipher images. Why some papers refer ideal value to be 33.33 and some refer it to be 33.46? Which is the correct value? (In reference to image...

11 February 2021 9,562 2 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

What are different ways to compare the histogram of cipher images from various encryption schemes?

Is there a metric to find if one histogram of cipher image is better than other? I tried calculating the variance of the image but couldn't get the intended results. Are there ways to compare...

28 January 2021 479 3 View

Who knows some kind of legal scheme for renewable energy certificates (REC, iREC, GO) integration requirements?

Who is a "central body" for renewable energy source certification and process implementation? Are REC, iREC, GO securities or there is another legal scheme? Is it possible to trade them outside...

21 January 2021 4,179 3 View

What type of stimulation signals (fequency, power, amplitude, etc.) are used in miostimulation?

I am making electrical circuit and need to understand if everything is good in scheme. So I need: 1. To make sure if I use correct transformer for amplification 2. If I have make correct type of...

07 January 2021 4,904 4 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