Treatment Definition and 177 Threads

Error treatment on temperature~~ I recently did an experiment at school. I don't know how to calculate the error of temperature after changing the unit of temp. from degree celsius to kelvin. Here is the question. Let T=23 °C ± 0.5 What is the error after changing the unit to kelvin...

I just read this article in the New York Times, and I'm surprised it's not bigger news considering how important it could be if the treatment turns out to be as effective as it seems: http://www.nytimes.com/2011/09/13/health/13gene.html?pagewanted=1&_r=2 Later they mention it giving the...

I'm a physicist, but I'm not a specialist in the foundations of quantum mechanics. This month's Scientific American has an article by Vlatko Vedral about entanglement and decoherence. Paywalled article, with a brief summary...

Flame Treatment Machine, need help... I work for a automotive supplier company. I am needing to fabricate a Flame Treatment Machine to Flame Treat the Parts before applying a adhesive shim. The Flame Treatment Improves the Dynes of the parts for better adhersion of the shim. I am fabricating a...

Could anyone possibly explain how ferrofluid is used in cancer treatment? Is it via an electromagnet or an alternating current? Have Googled but am none the wiser. Is ferrofluid difficult to warm up? What sort of temperatures are we talking about? Many thanks

Newbie to the forum, so forgive me if I post this in the wrong place! If I heat steel (a bearing outer race to be exact) from room temperature to approx 200C, the hardness of the steel will reduce. If the temperature is then allowed to reduce back to room temperature, what will happen to the...

I've been playing around with some proofs and find myself relearning how I do my mathmatical thinking. Just a general question regarding how to handle something like this. 0<a<b So a and b must be positive a/2 <b I just divided one side by two instead of "dividing through" like you...

Hello, colleagues! I need your help. Now I*m interested in rare types of ectopic pregnancy and especially modern methods of treatment. I*d like to know about new methods of using methotrexate(scheme of treatment and additional treatment). If you can help, thank you!

Hi all, I recently read about the quantum graphity model that was proposed by Lee Smolin et. al. The model had some really nice features but can anyone tell me if a similar string based model has been proposed? I know that string net condensation does something similar but has a full model...

No matter how hard I tried, I could not find anything but the praise for Shankar's Principles of Quantum Mechanics, and not a single soul ever had any problems with this book... Hmm... Am I the only one who thinks that Shankar's explanations are at times a little... well, let's say...

Recently, my boss asked me about the calculation or formula to calculate the size of water filter vessel ( bullet shape ) which is suitable for a condominium. I fail to find any formula from the Internet, so can someone help me to find the formula? Much appreciation. From one of the...

What is it about some humans that allows them to treat animals as if they were mindless pieces of flesh grown in a test tube? http://news.yahoo.com/s/yblog_thelookout/20101217/ts_yblog_thelookout/undercover-investigation-of-smithfield-foods-reveals-factory-farm-horrors" . Please bear in...

Homework Statement Given the Hamiltonian for the harmonic oscillator H=\frac{p^2}{2m}+\frac{1}{2}m\omega^2 x^2 , and [x,p]=i\hbar . Define the operators a=\frac{ip+m\omega x}{\sqrt{2m\hbar \omega}} and a^+=\frac{-ip+m\omega x}{\sqrt{2m\hbar \omega}} (1) show that [a,a^+]=1 and that...

Hi, i was reading a book that said that the ionisation density in the body is directly proportional to the square of the charge and inversely proportional to the square of the speed and also that the range (for a particles of the same velocity) is is proportional to the mass, and inversely...

I am confused over how to work with errors and uncertainties. So far when dealing with a small number of measurements I have used the partial derivative method to calculate the final error in my result e.g. if my result is E=mgh \text{ then assuming no error in g my uncertainty is }...

This question might not even make sense but here goes, it's is about the particle nature of light. As I understand it we can take a sine wave extending throughout all space and add to it others of different wavelength, and we see the the phase differences causing the amplitude to decrease as we...

Why does the Brewster angle phenomena happen only when the electric field vector lies in the plane of incidence (the magnetic field vector is perpendicular to that plane) but not when the magnetic vector field lies in the plane of incidence (now the electric field is perpendicular to that plane)?

If a quantum system is subjected to a time dependent Hamiltonian with one parameter lambda, then its entropy does not change provided lambda is changed slowly enough between two values. How can this be proved rigorously? The http://en.wikipedia.org/wiki/Adiabatic_theorem" is not enough, since...

Does anyone know of any book that treats special relativity from a mathematical standpoint? I want to learn SR before starting to read Schutz/ Hartle/ Carrol.

Can someone please check this? Does this make sense? Homework Statement Determine the size (liters / hour) of a proportioning pump to feed ferric chloride for a .438 m^3/s water treatment plant. The optimum dose selected is 50mg/l. Ferric Chloride may be obtained in a liquid form that is...

I am designing a UV disinfection unit think: http://www.wedeco.com.au/www.australianultraviolet.com.au/animation2.gif I need to ensure an internal intensity/dose of 410 J/m.sq to all waters that pass though. (to comply with WHO guidelines) I am aware of The Beer-Lambert Law but will...

hello I'm studying industry and the environment as part of my chemistry A level course. Water and water treatment falls under this. I'm having trouble understanding what exactly is meant by a disinfectant residual in the treatment of water. Can someone please explain this. Also why are...

Hi forumer, I have 2 specimens that need to be done hardening and tempering. I have found some journals for it. But i don't understand the following statement. "10mins/cm of ruling section" ; and "1 hour per 25mm of section" If my specimens dimension are: A) 12.5mm X 12.5mm X...

Hello. I was wondering if anyone here could recommend a book on analog electronics that doesn't shy away from the math, but isn't too advanced for my level (electronics-wise, not math-wise). For reference, I've gone through Floyd's Electronics Fundamentals (although I don't necessarily...

Hello! I'm looking for some introductory materials on the Hamiltonian Treatment of General Relativity; can anybody help with some references?

I apologize if threads on this topic have been posted already. I don't frequent the medical sciences forum. My question is whether there are any rigorous scientific results published in peer-reviewed journals on the efficacy of what seems have been dubbed "low level laser therapy" (LLLT) as a...

Hi all, I'm looking for a rigorous (in a mathematical sense) treatment of statistical thermodynamics. I'm at the tail end of a class on stat thermo that used the book by Bowley and Sanchez. This book is not what I'm looking for. Does anyone have any suggestions?

Alright, this is a hypothetical problem for my math class, (but it seemed to fit here better than calculus help) and though I am allowed to site sources, I don't necessarily want the answer just given to me (I mean, I'd really like to figure it out). Homework Statement Treatment lasts...

Hello Everyone! I need help on this topic. Can anyone provide me some details on how to solve the problem? Thanks..

Homework Statement Barium chloride is a toxic compound used in waste water treatment and many manufacturing processes. A 20 mL solution of 0.200 M Na2SO4 is added to a 10.0 mL water sample containing an unknown concentration of BaCl2 that was concentrated by 100 fold after being taken from a...

Hi, please i'll like to get help with the appropriate range of solution heat treatment temperature during the precipitation hardenning of wrought ( heat treatable) aluminium alloy especially as it regards the particular range of soaking temperature required to hold in the single phase region...

can you rubber band external/prolapsed loose skin left over from hemmorhoids or does it only work on internal hemmoroids/loose skin? I'll ask my doctor but she wasnt very helpful before, I am not replacing professional health advice with this, just asking about it, thanks...

Hi all, I am studying ZnO and Al-doped ZnO (AZO) for transparent conductive thin film applications. I synthesized ZnO and AZO nanoparticles (NPs) by wet chemical method, then fabricated the thin film on glass substrate by spin-coating technique, and finally, annealed at high temperature...

Does using the TFAM protein like this solve the problem of oxidative DNA to the mitchondrial DNA? thanks why/why not? can anyone shed some light on this? thanks http://www.als.net/forum/post.asp?method=TopicQuote&TOPIC_ID=3963&FORUM_ID=7 An investigational protein that transformed normal...

Hey there. I'm trying to redo basic quantum chemistry with a lot more rigor. I'm currently using Pauling's "Introduction to Quantum Mechanics With Applications to Chemistry". Here is a copy of the page(s) I will be referring to...

Glycolic Acid possible treatment for scar tissue? I'm looking into possible treatments for scarred tissue. One substance I have come across is Glycolic Acid. It is used extensively in cosmetic creams and skin peels in a <10% concentration and is used for deep tissue skin peels by...

http://backspace.com/notes/links/2008/06/george-w-bush-memorial-wastewater-treatment.php

Welcome to the world of the "liberal" media in the US: http://www.iht.com/articles/2008/07/06/business/BUGLIOSI07.php

http://www.telegraph.co.uk/portal/main.jhtml?view=DETAILS&grid=&xml=/earth/2008/06/18/scicanc118.xml This is pretty exciting news. I wonder how they define "response" in response rate.

In high school we learn Coulomb's law for electrostatics, and later in University find that the correct version of this equation is in field form as part of maxwell's laws where the set of these equations together are lorentz invarient. In fact in "Principles of Electrodynamics" (Dover, by...

Tuberculosis patients are now routinely given two different antibiotics at the same time. Why might this approach be more effective that administering a different antibiotic only after bacteria develop resistance to the first? Is it because infections rapidly adapt through mutations?

Hi Friends, I'm looking for the Yield strength, Ultimate tensile strength, Young;s modulus and poisson's ratio of SAE 1055 material after heat treatment for my FE Analysis. The material undergoes the following heat treatment processes Through Hardened to 880 C for 2 hours and Oil...

Hiya. I'm revising for a classical mechanics first year exam, and the lecture notes on central forces are less then ideal. I'm looking for a fairly simple treatment of the subject with especial regard to circular motion, bound and unbound orbits, binary systems, kepler's laws, distance of...

Hi guys, I need some help here on heat treatment. I have a ASTM A182 GrF22 billet. I am just told i need to achieve a hardness of 220BHN. How do I go about precribing the heat treatment steps in order to achieve this hardness? I mean I know about age hardening, tempering, quenching, etc...

I am going to heat treat Al alloy ribbons of low thickness (about 0.01 to 0.025 in). Could you please suggest me the time needed for solutionising as well as aging treatment if my heat treatment cycle for thick sample is as follows? Solutionization – 540C for 16 hrs Quench – Room temperature...

http://www.bloomberg.com/apps/news?pid=20601087&sid=aIJ90qlEwzdg&refer=home What a strange situation. Employers can fire people for smoking cigs or drinking, but in the case of a prescribed medical treatment this seems rather odd. Of course this again gets back to the feds stepping on...

Homework Statement Using a theoretical treatment including \gamma (the ratio of cp to cv), determine the speed of sound in each of these gases: argon at 273 K, methane at 165 K, nitrogen at 600 K. Answer must be applicable to any gas at any temperature Homework Equations The...

We know about formation of (stellar mass) black hole under gravitational collapse in classical theory. But what is the result according to full quantum mechanical treatment? Can anybody tell? I have found one paper according to which, formation of trapping horizon can be questioned in...

Homework Statement I have a question relating to Griffith's treatment of spin. Griffiths shows, using the commutation relations for angular momentum, that L^2 has eigenvalues l(l+1), where l=0, 1/2, 1, 3/2, ... He also shows that the operator -\hbar^2 \left( \frac{1}{\sin(\theta)}...

Homework Statement A galvanized steel roof shows small brown stains indicating minor rust. There are no penetrations of the material. What would be the most appropriate treatment and why? Homework Equations N/A The Attempt at a Solution The brown stains indicate that the zinc has...