Extraction Definition and 78 Threads

TL;DR Summary: I have to do a project for my school, and I want to know how it works, because I just can't get any useful information of the internat alone. I have a project for school, I want to analyse and compare the protein contents of some different species of fish. The problem I'm stuck...

Hi, I have been using diesel fuel and gasoline to rinse out surplus 5gal epoxy resin jugs. They are great for projects. The resin seems to dissolve or at least emulsify into the diesel. I'm wondering if there is a way to extract/separate the diesel from the resin. The resin is not soluble in...

Hello i have NPK fertilizer 20-20-20 and i want to extract potassium nitrate crystal from it is that possible and if so how can I do it??

Theorem: The columns of A which correspond to leading ones in the reduced row echelon form of A form a basis for Col(A). Moreover, dimCol(A)=rank(A).

I am performing extraction flash calculations for 4 component and 2 phase system. For anyone somewhat shaky with what extraction flash calculation is; extraction is performed, feed composition is known and we are calculating compositions of both phases at equilibrium, mole fraction of every...

Hi, Is it possible to charge a capacitor, and then extract or isolate the part of the capacitor that has been charged with electrons? Thanks.

Hello everyone! I'm trying to implement a quantum circuit that yields a superposition state $$\frac{1}{\sqrt{2}} (|01 \rangle + |10 \rangle)$$ I'm using parameterized gates to achieve this. I have been able to create the state $$\frac{1}{\sqrt{2}}(|01\rangle + e^{i\phi} |10 \rangle)$$ Is there...

Hi all! The distribution constant of stearic acid between n-heptane and acetic acid is 4.95 at 25 ° C. Determine the number of extractions from a solution of stearic acid in acid acetic acid, with successive portions of n-heptane of equal volume to the solution, necessary to reduce the residual...

I've been doing some spectrum extractions in IRAF, stellar and galactic, and I was wondering if anyone here had any ideas on how to tell if the extraction/calibration/etc went well? I have a bunch of finished projects but I'm not sure about how to tell if they're any good or not. Let me know if...

i was doing a research on active power filters and i read about Iref ( the cancelation waveform) extraction algorithm, and they are using complicated algorithms like FFT or DFT in frequency domain or the park transform and clark transform in time domain, i was wondering, why isn't there any...

The question I have been given: Draw the dominant forms of each of the compounds below and state which, if any, would be expected to extract from aqueous solution into hexane at (a) pH 12 and (b) pH 2. CH3CH2COOH CH3CH2NH2 CH3CH2CH2OH H2NCH2CH2COOH From my understanding, I can tell what the...

At a sufficient resolution, such as mapping every knowing prime gap... Could a fractal equation created to perfectly describe this (at max possible res.): http://techn.ology.net/the-density-plot-of-the-prime-gaps-is-a-fractal/ Likewise clear a path to a nth-dimensional fractal for prime gaps...

Good job guys I will like to know how to extract the digestive enzymes from the followings: 1.PROTEASE FROM GUAVA,GINGERROOT,PAPAYA AND PINAPLE. 2.AMYLASE FROM BANANA,SWEET POTATO,EGG,SUGAR CANE AND CORN. 3.LIPASE FROM COCONUT, AVOCADO AND CORN. 4.CELLULSE FROM AVOCADO. 5.MALTASE FROM...

Hello friends, how are you ? Today's question is: How do i choose the data i want to extract from a file in c++ ? I have this data file in columns format, something like: x y z 1 2 3 4 5 6 7 8 9 I know there is the command file.getline() , and this...

I thought about a solar furnace prototype. It is like this: light from the Sun is concentrated with a system of parabolic and plane mirrors on the surface of a rock, which is contained inside a vessel. The light and heat is not meant to reach the vessel, only the rock; the vessel could be...

No mention of this here so far that I see so I would like to see what the experts know about this. A Univeristy of Saskatchewan professor claims he has invented a solution, "acetic acid combined with very small amounts of an oxidant and another acid", that can rapidly remove plated gold from...

I have been working with some Herschel images and I am finding it difficult to extract the astronomical sources from the image. The image background is extremely non uniform so i am not able to differentiate between the background and the source. I used some tasks in HIPE like source extractor...

People seem to use DCM (dichloromethane) for this, but I was wondering if trichlroroethylene would also work.

i just choose this topic for my final year project where i need to search and conducting an experiment to determine its effectiveness. But since i am so lack of knowledge for this particular scientific experiment, i would like maybe a further explanatory here. Any thoughts or ideas about this...

Hi, I'm trying to understand the argument between eqns 4.117 and 4.119 in this paper http://arxiv.org/abs/1501.06570 as to why the penrose process is not possible for a boosted black string. I understand the basic idea is to show using an argument similar to 4.33 that |E| < |p_z| (see 4.118)...

I have a question I've found asked, but never found answered. I'm an EE, but I have a car as a hobby. I changed from a belt drive inlet air compressor (supercharger) to a turbocharger. People commonly say the turbo is "much more efficient" because it "runs free on otherwise wasted exhaust...

Hi, I’m new here and come to ask you for some help. I would like to ask you to give me a few examples of automated sample extraction from laboratory oven for mechanical properties testing. It could be in form of scientific articles, videos or anything else, where something like that might be...

And what are the methods? This was stimulated by This question could be rephrased as "use the method for finding square roots you were taught in school to find √7 to 6 decimal places". If you were taught at school. If you were not taught at school you were luckier than me, I was. It has had...

Hi all, I want to measure the concentration of benzene or toluene, in water with a GC, FID detectors. I put benzene in water with an adsorbent and after hours I've to test the concentration of benzene. In the lab we've already methanol and toluene, so I'm thinking to use toluene as pollutant...

My challenge is to provide a low-tech (DIY) way to purify the glycerol produced from soapmaking or biodiesel production. Simple distillation is out because the boiling point for glycerol is above its smoke point. Vacuum distillation and electrolysis do not count as low-tech. :) The input...

I sort of wandered in from the Science Fiction Forum before anyone could stop me. I have a thought that I simply lack the expertise to make use of, and I thought I would drop it in the laps of people who do have the expertise to make use of it. What would be involved to pull carbon directly...

Hey! I'm doing a lab assignment and need some guidance. i have measurement with L=1μmeter and w=10μmeter, but the id data is normalized to w=1μmeter, what does it mean? do I need to get Ids "un-normalized" for extraction, like Ids*1e-6= new Ids the second question is about low-field...

I am wondering what is the best method to use to extract a compound that is separated by TLC by the liquid extraction method following spot isolation (visualization using UV and scraping absorbent silica from plate) for identification by UV spectroscopy. I originally used methanol for...

Hello everyone. I'm sure there is a really good reason as to why this hasn't been done yet but I just wanted to ask and see if it could be done. Why can't we make a mouth piece that basically takes in water, filters out the oxygen and then expels the water back into the ocean, then takes in...

Homework Statement The actual efficiency of a geothermal power plant using a 200 C geothermal resource is only about 7%. Take this value as typical of California's Geysers geothermal field, which produces 900 MW of electric power. a) Find the actual rate of geothermal heat extraction at...

Homework Statement During an experiment using Soxhlet Method to extract cholesterol from egg yolk, also using dicloromethane as a reagent, we crush half boiled egg yolk and put 80 cm3 of dicloromethane. Homework Equations Then comes a question which is assuming the maximum of absorption of...

How to I get the fool's gold out of rocks as to have the gold in one pile the rock in the other? John

Hi, I have been working on molecular formula determination for biojet fuels. Can someone help me here please. I need to find out the molecular formula of Neat Algae jet fuel. I have been provided with the carbon-type (n and iso types) mass fractions for blended jatropha/algae fuel and neat...

Hi, I am looking for information on how to extract circuit parameters. I have a system, and I can experimentally perform current and voltage measurements. For example, I can measure the voltage response of the system as a function of a given input pulse. In addition, I also have an...

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Hi guys, I think this is a simple question for mathematica experts. How can I maximize the extracted value from a list given a index that has to respect some constrains? For example: S = {4,2,3,5} Maximize[{Extract[S,x], x<= 3, x>=1},{x}] I would like 4 is returned instead of...

Homework Statement We have a 100 mL of 10 mM Tris-HCl, 1 mM EDTA, pH = 7.4 We're supposed to add PMSF to a final concentration of 1 mM and 2-mercaptoethanol to a final concentration of 1 mM. The stock solution of PMSF is .10 M PMSF in absolute ethanol. The 2-mercaptoethanol is also in the...

The purpose of this thread is to spark discussion of how to generate energy from Inertial Confinement Fusion. I have a few questions about the process, so hopefully someone who's more in-the-know will have the time and the inclination to answer them. (I would appreciate it greatly) With...

A gas composed of nuclear fuel is undergoing fission, producing fast moving positive ions that I wish to remove from the system by use of a magnetic mirror. What field strength is needed to ensure the fragments follow the trajectory I need, and not interact with the surrounding material?

Homework Statement Show that using small volumes of ether solvent in an extraction from aqueous phase is better than using larger volumes. The total volume of organic solvent, amount of material to extract, aqueous volume and distribution constant are the same. You can do this with an...

Homework Statement Why is it possible to use dimethyl ether as a solvent for extraction of benzoic acid and not dioxane? Homework Equations The Attempt at a Solution I'm thinking that it's because dioxane has more of a hydrophobic character since it has many carbons, but then...

I wanted to perform some experiments on enzyme rates and chose amylase as it is easy to obtain. However, I wanted it in pure form so that I can perform mass/concentration-based calculations as well. Is there any way to extract alpha-amylase from human saliva? Thank you.

I'm confused as to what the theory behind this is, I've checked on wikipedia, but it gives a rather convoluted explanation, can anyone clear this up for me? http://en.wikipedia.org/wiki/Acid-base_extraction What is this method trying to isolate, only salts? Or is this a valid method for...

Hi Please look at this link. It is only very brief. It describes how to extract iron from iron oxide on a match head. My questions are: where does the carbon come from in this equation Iron(III) oxide + carbon → iron + carbon dioxide 2Fe2O3(s) + 3C(s) → 4Fe(s) + 3CO2(g) Is it...

Homework Statement In O-Chem lab, after the reaction is complete, NaHC03 and NaCl solutions are added. Then BME is added and aqueous layer removed. Why do you extract the mixture with salts, and what role does each one play?Homework Equations Ester synthesis trans cinnamic acid + methanol...

In the backdrop of my final year project i have a MATLAB question to ask you. Suppose we have text file placed in the workspace of matlab. In the text file is written the address of a person. From that address i have to extract the city name that is supposed to be writtent in the end. I can...

You want to think about technology you can patent? Come up with a way to extract frozen water ice in the shadowed craters on the Moon, which are at temperatures approaching absolute zero. He who controls the lunar water, controls the future of human colonization on the Moon. Given that this...

first of all, i not sure whether this question should be posted here. seem the soil is more related to chemistry. :confused: Is Fe the highest concentration in the experiment extraction of heavy metal from organic oxidation phase (OO phase)? If so, why? thanks for helping ya.:smile:

Hello, I heard someone talking about something that our voice is stored somewhere in the atmosphere? Is this true? Regards

I was wondering if we could create a device that could interact with neutrinos and extract their energy to some considerable percentage, would this allow for an almost undirectional and free power source? I'm unable to do a rough estimate of the power per square meter as it seems tying to find...