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

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

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

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

I am conducting forest inventory in a tropical forest but I am not a botanist. Could anyone provide me the field guides for plant ID?

The inventory will focus on trees that has a diameter >5cm. Tropical Forest of Central America For example: Gentry's field guide to the families and genera of northern South America or any...

05 March 2020 865 3 View

Accuracy of land-use classification and uncertainties in land-use change assessment?

I am analyzing land-use change in 3 periods. For each period, one land-use map was derived from remote sensing technique along with accuracy of classification. I want to ask if there is any...

23 February 2020 8,063 5 View

How to design an exercise to enhance a psychological phenomenon such as self-compassion?

- What is the principle behind practicing/enhancing self-compassion? Or other words, how is self-compassion enhanced by practicing these exercises on Kristen Neff's website:...

04 November 2019 9,866 1 View

How can I synthesis Amine and Chlorine including fragment?

Hi, All I trying to synthesis peptide with Amine (NH2) and Chlorine including fragment. I tried second times. 1) just left peptide with amine & 4X chlorine 3h 2) peptide with amine & 4X...

04 September 2019 6,534 4 View

Why NiMH battery use CoOOH/Zn as conductor instead of carbon black?

Carbon black is much cheaper than CoOOH and has been widely used in Li-ion battery. Is there any specific reason that NiMH battery use the expensive CoOOH?

24 July 2019 1,456 4 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 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

Does any one know how i can prepare liver tissue with transmission electron microscope with good fixation?

i have problem in preparation of liver tissue with bad cell organelles and how i can adjust osmolarity

03 March 2021 8,890 1 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 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

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View