cleaning Definition and 67 Threads

I am currently usig a dc magnetron system to produce thin films on various different ypes of substrate, my problem is, the main viewing port (around 8" diameter) keeps getting a build up of thin film on it, effectively turning it into a mirror; this happens every time a sputter making it...

I'm attempting to clean impulse noise from a wave file in matlab. the file is two channels, about 7 million points in each channel. What I wish to do is keep points, that are below my trigger levels, and delete points (in both channels simultaneously) that are above the trigger levels for either...

Homework Statement The idea of the problem is to find out how long it would take to flush the Great Lakes of pollution. They're set up as a series of five tanks and you are given inflow rates of clean water, inflow rates from the other tanks, and outflow rates. See attached figure...

A mate of mine who has a hobby involving digging up old bottles (and other items) from old rubbish dumps, came across instructions for cleaning the bottles with ultrasound. The instructions he showed me involved using a metal tank, signal generator set to 40kHz and a 'transducer'. I...

I made a cleaning solution that could clean anything. It was made from: -1L of 5% bleach (normal stuff at any store) -3L of 70% isopropyl alcohol -1/2 cup of dish soap -a dash of Comet -1 tablespoon of concentrated ammonia The solution would settle out as a cloudy yellow mixture. When...

I am doing a science project to determine what material is best at cleaning up an oil spill in the ocean. I plan to simulate the ocean and use motor oil. I am trying to do something similar to Exxon Valdes

I need help with the following problems: 1.Are there environmental concerns that arise as a result of the chemical process of cleaning?(if yes go into details) 2. Has the cleaning industry made any recent advances that have chemical foundations(if yes go into details) Websites, Answers...

I am in an on-line chemistry class and I am having trouble figuring out Chemical reactions upon which Cleaning relies on and the role that it plays in the cleaning industry?:confused: Can somebody please help me I think it is: Water Soaps Fats and Oils Alkali ...but I'm not really sure

Is there a way to chemically clean this type of exchanger from graphite impurities (tiny particles) ? is possible to chemically remove coke,soot,graphite at all? we clean it with xylene but that doesn't help tnx

I need to clean my laptop screen but I am not sure what to use. Any recommendations? thanks.

I have just got home from a sh** ty night, and i know i am a household klutz but i do like every thing to be clean and tidy, and every thing is covered in soot, even my lap top has soot on it, my chairs my electric fire every thing :cry: :cry: how the heck can i clean this lot up.

I've had this GE dishwasher for a couple of years, and things have been fine. A few months ago, it started leaving dishes dirty. I can't figure out why. By "dirty", I mean the dishes (mostly the glasses in the top rack) are coming out with crumbly gunk stuck to them (basically baked-on from...

Today I decided to open up my PC's case and de-dust it. I usually do it once every 4-5 months but I've been putting it off and before today I hadn't done it for over a year... :rolleyes: It took me about 20 minutes to clean all the dust out, starting with the main fan, the dust case around...

While washing my bathroom sink, I read that the main ingredient of the cleaner I used was none other than "sodium dichloro-s-triazinetrione dihydrate" Is the structure of this compound simply: -1,3,5 triazinetrione with two hydrogens replaced with chlorine, and the third hydrogen replaced...

Hi all. I have a very heavy 9" reflector but it is has spherical curve. It was made for a semiconductor projection aligner which was being scrapped and I saved the mirror from going into the trash bin. I saw an article in one of the rags about making a frame on the back of the mirror where...

I have a microsoft wireless mouse, now most of you would think that would be the problem lol, but seriously here is the problem: I have not used this mouse in a few months, because I could not find any batteries, but today, while looking at the mouse, I noticed that there seems to be some...

Can anyone tell of an additive that can be used in cleaning water and detergent, that will help prevent corrosion of electrical connections contacts etc, this may seem a strange question, as the obvious thing to do is not get them wet in the first case, but this impractical as the cost in...