Hydrogen fuel cells to power electric cars and locomotives?

More Bernard Schaffler's questions See All

What is the significance of deeper energy bands?

Most of the literature that I have come across mainly describes about the importance or impacts of states around the Fermi level in the E-K diagram (energy band diagram). But I have come across...

25 January 2024 6,529 1 View

which syntax to search : alpha AND beta ?

research functions: which syntax to search : alpha AND beta

02 January 2024 9,050 0 View

Why can I not see requests for full texts of articles?

Hi, I have received a number of requests for full texts of articles but when I click on the link in the notifying email I cannot see the request. I have asked ResearchGate about this but not yet...

26 October 2023 5,901 14 View

Indirect to direct band gap transition in SUPERCELLS?

My compound under investigation are cubic and construct corresponding 2x2x2 supercell. Properties like optical and mechanical seems to be correct as expected. But problem arises in their...

04 September 2023 8,281 6 View

Will ChatGBT impact academic research?

The current tread of academic research is being enhanced using ChatGBT so am wondering whether going forward in the academia, researcher would even skew towards the use of any search engine apart...

06 August 2023 429 7 View

Why DFT sometimes approach for real space instead of reciprocal space?

I have found some discussions suggesting real space approach instead of reciprocal space for large systems. What is the logic behind this real space approach? Dosen't DFT approach always only...

07 May 2023 4,705 8 View

Why surface tends to be metallic in DFT calculations?

The current study of certain compounds are semi conducting in their bulk but transits to metallic of half metallic when surfaces are built from corresponding bulk structure. Although I have a...

17 April 2023 3,969 1 View

How do I calculate surface energy of certain thickness in DFT?

I have come across many articles and publications that calculates their surface energies for certain compounds. The most general and perhaps the common formula used is Esurface=1/2A(Etot-N*Ebulk)...

15 February 2023 6,961 11 View

Can half metallic compounds have optical band gaps?

My interested thin film compound of study are reported to have optical band gaps from experiments; while my DFT calculations shows half metallic properties. My DFT Optical properties calculations...

01 February 2023 3,479 2 View

Does anybody know a good measure of cultural competence for children (7-9-year-old)?

I am looking for a measure/scale suitable for assessment in classrooms to measure cultural competences (cultural sensitivity and self-awareness)? I will be grateful for any advice :) Best...

02 January 2023 1,268 2 View

Why Do TDS and EC Increase with Larger Wastewater Volumes, While BOD and COD Decrease?

I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...

09 August 2024 9,621 0 View

Is there any way to quantify bacterial and fungal cells in their mixed culture?

I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...

07 August 2024 7,535 4 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

How much total RNA concentration to be extracted from sorted plasma cells from bone marrow of C57BL/6 mice for RT-PCR ?

i have sorted anti-NP specific plasma cells from bone marrow of C57BL/6 mice at certain times after immunization with variable counts and isolated total RNA using TRIZOL method for RT-PCR using...

05 August 2024 8,835 1 View

How to use Density Functional Theory to calculate carrier mobilities of solid system?

Hello, everyone. I have tried to determine carrier motilities of some materials, by Density Functional Theory, using Quantum ESPRESSO. There are a few methods to do it, like a package called...

04 August 2024 8,894 1 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

Does long-term culture of murine Monocytes result in macrophage differentiation?

Hi, I am isolating monocytes from the bone marrow using the Mouse Monocyte EasySep kit. I want to treat these cells and monitor expression of specific markers over the course of 10 days. I will...

04 August 2024 7,282 2 View

How to Transform my handy-wavy explanation of why group I/II metals oxides in aqueous solution are basic into a rigorous argument?

I heard an explanation about something being a better proton acceptor or lone pair donor but that doesn't make sense. I couldn't explain in in terms of acid-base theory. The hand-waving way I saw...

03 August 2024 9,918 0 View

What is the ionic radius of Hydrogen anion? And how to know the exact ionic radii of the elements?

I'm trying to calculate the tolerance factors of the hydride perovskite and the value calculated by me and the reported values are contradictory. Need more clarity in using the correct ionic radii...

01 August 2024 2,614 1 View

How can I get my Granzyme B flow cytometry stain to be consistent?

I have used PE and PE-Dazzle 594 fluorochromes and have managed to get NK cells to properly show GranzymeB expression after 4 hr PMA/ionomycin stimulaton, but for some reason my CD8 cells in the...

01 August 2024 7,677 2 View

Hakan Lane

Bernard Schaffler you have a profile anywhere else, need verify who you are before we could help you?

Bernard Schaffler

Hakan I would like to send my PhD thesis to you. Pleasesend me you email address. My address is [email protected].

I need a university to accept my development. I was expelled from Queensland University of Technology in 2012 but Researchgate will not remove this information. I live in Sydney Australia. Kind regards.@