Is there a point of zero charge database for minerals?

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How to get Kd values from surface complexation parameters?

I have data on metal sorption to sediment surfaces that contain site densities and equilibrium constants (non-electrostatic general surface complexation models), but I would like to get general Kd...

03 April 2018 9,671 0 View

Double checking pCO2 to alkalinity conversions?

I needed to calculate mg/l CaCO3 values from partial CO2 pressures, but I'd like to double check with others to see if I did it correctly since the books aren't always clear on that. I used the...

04 October 2017 8,305 8 View

Can I calculate porosity from tracer breakthrough data in a soil column?

I ran a column experiment with a tritium tracer and am trying to find out the porosity of the soil. Unfortunately, I discarded the soil inside the column already without measuring the mass used....

01 February 2017 335 8 View

How do I calculate the calcite saturation index by hand

I have pH (6.5ish), [Ca] (~400 mg/l) and alkalinity (~360 mg/l), but when I try to do this with the formula that was given to me I get nonsense results.

22 January 2017 4,373 6 View

How can we differentiate between calcite, dolomite, siderite, magnesite and ankerite minerals in carbonatite rocks in thin section under op microscop?

How can we differentiate between calcite, dolomite, siderite, magnesite and ankerite minerals in carbonatite rocks in thin section under optical microscope?

07 August 2024 2,132 3 View

Is the mentioned CV graph a valid one as this graph have only one peak prominent (reduction)?

I have used Prussian blue nanoparticles as a redox couple. The PBNPs have been made using only one salt precursor. Also, during scan rate studies, a small oxidation peak can be consistently found...

31 July 2024 9,697 0 View

How Do Project Data Analytics and AI Advance Quality 4.0 in Construction Project Management?

As the construction industry advances, the integration of Project Data Analytics and Artificial Intelligence (AI) is becoming increasingly crucial in project management. These technologies are...

31 July 2024 6,484 1 View

Can a photocatalytic degradation of methylene blue from red mud be pseudo- zero order kinetics?

My photocatalyst from solid waste red med. Dye is methylene blue My all parameter study is showing zero order. How to prove it further that the reaction in zero order?

29 July 2024 7,404 1 View

How can I get old refernce in geomorphological mapping?

how can I read Waters, R. S. 1958. Morphological mapping. Geography 43 :10-17 from internet? note: not in google or resaearch gate

26 July 2024 7,813 3 View

How to determine method detection limit in an analytical method?

I know the difference between instrumental LOD and method LOD but my query is - in case of any sample whose concentration is zero or not detected by the instrumental LOD, is it possible to get...

24 July 2024 6,592 5 View

Radar Detection Probabilities using beta distributed Scattering Cross section?

Currently I need to calculate detection probabilities (PD) from radar cross section (RCS) data. Beta distribution parameters for this RCS data are calculated and will be used in Swerling0...

22 July 2024 868 0 View

What is the physical meaning of the magnetic scalar potential?

In cases where the rotational of the magnetic field H is zero, we can define this field as the gradient of a scalar function defined as the magnetic scalar potential (similar to the electric...

21 July 2024 9,633 4 View

How to draw photon-magnon coupling color plot in origin?

Please help me in plotting the photon-magnon coupling plot as shown below

14 July 2024 1,632 1 View

How to model a non-minimum phase system?

In deriving a model of an LTI dynamic system, the model of the system does have no RHP zeros, however, when inspecting the step response, it reveals a non-minimum phase system represented by a...

14 July 2024 6,355 2 View