What make sulfur play a critical role to form most of significant ore deposits?

i read most of ore deposits related to magma origin the sulfur play a critical role to form these ore, first of all chemically what make S behave as former inside magma , as magma has a lot of...

06 July 2018 3,561 2 View

What is the source of carbon in magma to form diamond?

i am trying to figure out the source of carbon it is from magma or recycled from surface

03 April 2018 1,076 1 View

What means when USA withdrawal from paris agreement ?

i hear in news and some magazine that if america not deal any more with paris agreement will affect and increase global worming. could you please explain how , what that mean if they are not...

01 February 2018 5,116 0 View

Why some element has isotopes, others no?

i always read about isotopes and i want to know why some elements has 3 isotopes, others 2, 1, some no isotopes. which chemical action can perform that.

01 February 2018 854 2 View

How to differentiate between anhydrite and kaolin physically properties?

while drilling some wells always get confusion between kaolin an anhydrite as it came in same color. i consider as kaolin due to environment comes sometime with clastic rocks, which not agree by...

31 December 2017 839 1 View

Why there is no add references in research paper as project?

09 October 2017 4,678 1 View

Could i consider manganese(MN) content in travertine deposits as indication of alga existed?

if i check samples and it is hard to find out bacteria through microscope, could we use manganese content as geochemical evidence for bacteria in amount relatively

09 October 2017 1,553 5 View

What is the depositional environment of micaceous sandstone?

while we drill we face hard formation sandstone plenty of mica.

09 October 2017 4,922 10 View

IS there any software for sedimentary rocks modeling?

08 September 2017 7,072 4 View

How i can make an old paper for me as references of new paper which related to? i really can not add or cite mine..... any idea?

cite publication, references

08 September 2017 9,509 0 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

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

Can someone suggest a way to prepare slides to observe under confocal microscope for observing fluorescent tagged proteins??

I am growing the cells on coverslips and transfecting the fluorescent tagged protein directly on them. Then i want to observe these cells under confocal microscope. Currently i am just using...

01 March 2021 6,142 3 View

Why does intensity drops as concentration increases?

Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?

28 February 2021 3,653 4 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View