How to determine Fe(II) and Fe(III) molar concentration in Iron Ore Tailing extraction?

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The effect of mold, mandrel and matrix error in hydraulic press machine on lamination defect of oxide ceramics?

If we divide the factors causing lamination defects in zinc oxide ceramic parts into two categories of equipment and materials. How much is the share of each? Can the conditions of the mold,...

16 April 2024 1,926 0 View

When we use the GEB option in MCNPX code?

If I'm not wrong, the GEB option in the MCNPX code is related to the Gaussian Energy Broadening. When do we use the GEB option in the MCNPX code?

08 March 2024 9,375 0 View

CMOS circuit design?

Design of CMOS circuit to create the signal Vsig. The supply voltage is Vdd and t1 is a delay which is equal to 5ns. The picture is attached.

19 August 2023 8,893 1 View

What is the reason for the "No air pressure" error in the atomic absorption spectroscopy?

Our laboratory has a PerkinElmer (model: AAnalyst 800) atomic absorption spectroscopy. Recently, the performance of the device has encountered a problem. When the circuit breaker of the device...

22 June 2023 4,230 4 View

What are the advantages of counting photons over calculating energy they deposit in detector pixels?

What is the advantages of counting photons over calculating energy they deposit in detector pixels in dual high-energy X-Ray radiography?

13 June 2023 6,340 2 View

Low-power and ultra low-offset CMOS comparator?

I need a comparator with an offset of less than 5 mV. It is better to be designed in 0.18 um CMOS technology and the dimensions of MOSFETs should be clear. Thanks.

01 February 2022 4,640 2 View

How can the two parameters of electric current and wire feed rate be independent ?

I am optimizing the thermal spraying process by device parameters such as current, voltage, atmospheric pressure, nozzle type and wire feed rate. How can the two parameters of electric current and...

08 October 2021 2,943 0 View

What is the effect of furnace dimensions and volume on two samples with the same sintering process?

I am examining laboratory cases about the effect of furnace dimensions and volume. but I have no experience or data about that.

06 July 2021 7,503 1 View

What is the best lubricant and dispersant for SiC abrasive particles ?

I am examining laboratory cases about ZnO Based ceramic Lapping with SiC,Al2O3,CeO2 and SiO2 abrasive particles. but i have no experience about modifying SiC slurry lapping. Also,i use of double...

13 December 2020 4,524 4 View

Which type of resistor is used for high frequency applications?

This project is related to transient states. I want to study the behaviour of a circuit (like a current source) by suddenly increasing the resistance from one value (5 ohms) to another (10...

07 September 2020 6,878 28 View

Do you know best mines of western part of Afghanistan?

I want to know more about Mn deposits in west of Afghanistan.

07 August 2024 3,427 1 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

Why after performing site directed mutagenesis ,I don't see any colony after transformation?

I want to introduce a point mutation (change in one nucleotide) into my gene of interest (DNA binding domain) I have designed primers as recommended on the Data sheet of the kit : -Both primers...

05 August 2024 9,059 3 View

How to calculate the molar proportions of the oxides from the XRF analyses?

02 August 2024 2,565 2 View

Recovery rate after peptide desalting using Sep-pack C18 1 cc Vac Cartridge?

Recently I'm trying to use Sep-pack C18 1 cc Vac Cartridge (Waters: SKU: WAT054955) to desalt digested peptides. However, the recovery rate is usually 40-60%. What is the normal recovery rate?

31 July 2024 6,544 11 View

How to select target material for X-Ray generation?

Generally, the target material is Mo, Co, Cu, Fe, Cr, etc, so on what basis should we choose this material?

31 July 2024 5,824 0 View

I have no added any resarch paper yet but showing three paper? how to delete it?

I have not addede any paper yet but it has selected 3 papers which are not mine in my account. i want to delete that information. please help me

30 July 2024 3,743 0 View

What is the solubility of Iron (+3) in Bismuth Oxide?

Dear all: I am modifying Bismuth Tungstate with Hematite (Fe2O3), so I would like to know about how much Iron(+3) can form a solid solution in a Bismuth Oxide matrix. Best wishes Marco

29 July 2024 2,163 1 View

How to remove cell debris after tissue dissociation?

I'm facing issues with the tumor dissociation protocol for GBM. I use collagenase/dispase with DNase to dissociate my tumor sample. However, even after incubating it for 60mins, I do not get a...

22 July 2024 412 3 View

Is it true that there is a physico-statistical meaning to the constant π other than circular geometry but the iron guardians of the SE deny it?

We assume that there is a physico-statistical meaning to the constant π other than circular geometry, but the iron guardians of the Schrödinger equation deny this. The iron guardians of the...

22 July 2024 4,285 9 View