Lemaitre iron pyrite download

DTA is a potential alternative to quantify minerals [4] and offers a number of advantages over the more conventional methods. Being particularly interested in the quantification of small amounts of pyrite in ceramic raw materials to prevent the "black core" defect, in this study we explore the possibility of obtaining quantitative information on the oxidative decomposition of small amounts 0.

This information can be used as a guideline, in particular, for the ceramic tile industry. Background The oxidative thermal decomposition of pyrite is a complicated process and very difficult to reveal, often involving a series of overlapping reactions.

It has been extensively studied by thermal analysis techniques and, over a much wider set of experimental conditions, various mechanisms of reaction have been suggested [] From the four main components identified in the oxidized samples FeS2, FeSO4, Fe2 SO4 3 and Fe by different analytical techniques, many reactions may be assumed [6]. Using microprobe analysis and quantitative SEM,the authors of Ref.

Two possible routes, either through interaction between unreacted pyrite and sulphate [20, 21], or thermal decomposition of the sulphate [15, 18] have been proposed. Experimental 3. Materials E. Sapinks, Clay Company Inc. Their chemical compositions are shown in Table 1. TGA and DTA runs and elemental analysis, performed after this treatment, confirmed the absence of organic and sulphide compounds. Pyrite Fe, This resulted in a powder with a particle size less than 40 lain.

The powdered pyrite was then mixed with the calcined powders of the two clays in 0, 0. Each addition was mixed in a twin-shell blender for 60 min. Bandy Black SiO 2 Samples were weighed about mg directly into the nickel crucibles.

To increase the measurement sensitivity, the ends of thermocouples were placed in the sample and the reference material. All the thermal data were collected directly in an interfaced Hatary computer and the exothermic effects of the oxidative thermal decomposition of pyrite were also evalu- ated. Results and discussion 4.

Thermal behaviour of clays Figs. Some very similar features are present. The amount of water lost, smaller TGA curves of E. DTA curvesof E. K 1 and BandyBlack 2 clay. Thermal behaviour o f pyrite Literature data are very contradictory on the mechanism of pyrite oxidation because it depends on the type and amount of the investigated pyrite and on the experimental conditions.

As previously indicated, the thermo-chemical oxidation of pyrite is charac- terized by several basic steps and some general statements about oxidation under a dynamic heating regime have recently been suggested Ref. Apart from the specific oxidation mechanism, a total experimental weight loss of Considering these measurements it is impossible to obtain accurate information about the thermal oxidation of small amounts of pyrite in clay mixtures since the weight changes observed in the presence of 0.

The DTA curves shape and maximum peak position Figs. Although the proximity of the exothermic and endothermic events seems to make the course of the thermal oxidation and evaluating the amount of pyrite in clay mixes very complicated, accurate information can be acquired by concentrating on the first step of the pyrite oxidation process and measuring its area and evolved heat.

In Table 2, values of the oxidation heat evaluated in mixtures of the two clays containing different amounts of pyrite are shown.

Linear plots, obtained from values of the oxidation heat vs. Representative part of DTA curves of E. Bandy Black 0. Conclusions Thermo-analytical methods, used for the study of combustion and oxidation processes, can only give partial information about the course of an industrial oxidation process due to the impossibility of reproducing industrial heating conditions with instruments requiring very small amounts of sample.

Even in the presence of this restriction, DTA appears to have a great deal of potential for determining small amounts of pyrite in powdered ceramic raw materials containing clay minerals as prevalent components. The measurement can be carried out very easily, providing important information on the possible defects in ceramic pieces during fast-firing processes.

With this study, we demonstrated that proper use of the DTA technique can be favourably applied to solve this industrial problem. In this one, he explained what this fad about vintage-look photos is all about, how it started, it's effects and even it's possible future. It's quite a read for me but one thing sticked to me more that the other points of the essay; he said that all this vintage-y photos offer nostalgia for the present as well as authenticity.

I've never really thought of it that way before. All I know is that this image looks like it came from the s although the subject of the photo is clearly modern. A portrait looks vintage in it's colors but I know it was shot a few months back based from the description of the photographer. I never thought that I looked in to these kind of treated images and felt, these are authentic.

There is a point there, old images are regarded as authentic and real, because they stood the test of time, it captured a memory, all of those are the primary goals of photography, capturing a moment and preserving it. On top of my impression that such a photo looks creative, I may have viewed it as real and tactile like any printed photo even though I'm just looking at it from my laptop or my phone.

First is when the photographer snaps a shot in concept form , the other as a negative during processing and the last is as a print the one we hold and share to others. All of these made photos during the old times physically real. Compare it to todays way of sharing pictures, they are mostly on the web, displayed by screens either through the computers or through smaller ones in mobile phones.

It's not a bad thing, it's actually convenient, not bringing albums upon albums of photos from one's euro-trip or from a party by the beach.

But there is something to things that can be touched that makes it more authentic even though the images seen from the screens are as authentic as they are captured unless overly photoshopped, I'm talking about captured moments here. I guess Nathan is right. The appeal of the faux-vintage images comes from nostalgia and the effect of making an image seem more real just like prints. Maybe I still haven't printed that many images to appreciate the "look" of modern day photography showing the right colors, but for now, the vintage-y look works for me.

If I want to view the modern look, I go to px this website hosts the best of photography in the web, IMO. If I want the old look, I visit the blogs of my idol photographers or browse through DeviantArt or look through my feed in Instagram yes there are really good photos in there too, you just have to look.

In the end, the images are successful. Photos should either convey a message or invoke an emotion from the viewer, in a way, vintage-y images does that even though I haven't realized it before.

Even if the fad fades, and people go back to horrible HDRs or whatever it is next in line, I think I'll stick with faux-vintage photos, but it's not like those over-saturated treatments that I mostly see from apps rather the more less-contrast, sharp or sometimes not , pale look with a slight tint on the overall. My first playlist for is here with more genre of songs compared to the previous playlists! I'm sure you'll be pleasantly surprised when you hear them. All of them linked to their Youtube music videos and most of them to their respective band's page.

Lots of fantastic artists and just beautiful music for your listening pleasure. Lucia Remix Mr. I Love You! I was able to watch Potted Potter with Petite last Wednesday and boy was it a show. It's their 2nd time here in the Philippines as signified by "Returns to Manila" based on the posters and I'm glad they decided to come back. Yes, only 2 actors. Before I watched it, I checked some Youtube clips first and saw that it will be a fun show.

It was so fun that I was laughing most of the time and I know I'm not the only one because even the girl on my back was cracking up most of the show. The ad-libs and some modifications on the script to suit the country where they are performing was a good touch, it's a customized show! And that cake, which I'm sure is only on our show, hahaha laughing as I type this is something to remember.

Jesse talking to the audience before the show starts. We arrived just in time as the seats are getting filled and saw Jesse talking to some of the audience as we all wait for the show to start. I wasn't able to take a lot of photos because I was laughing on my seat the whole time and we were not allowed to do so anyway but I managed to sneak a few. As any kind of parody, it's mostly comedy as the characters goof around the stage while they try to tell the story of Harry Potter books.

They were able to summarize the whole story and managed to tell the plot twist on book 3 perfectly. Oh yeah, with comedy in between. Garry as the snitch There was also a Quiditch game that we all had a chance to participate in. Jesse divided the audience to two houses and we got to play with an inflatable ball as we try to shoot it through the hoops on the sides of the auditorium while the two chosen seekers dance on stage calling "where's the snitch.

One of those who volunteered, a small lady, whom I assume came from work, was shy because she can't do what Jesse was telling her to do, the jumping and bending and the voice. At one point, Jesse looks at her and tells her "Yes this is happening".

This is the part where I enjoyed the most because Garry was all gold, since he was the snitch, and as he exits the scene, he decided to dance the "Single Ladies" moves while blowing on the whistle that makes him sound like a snitch. It was so unexpected for me, and somewhat related to imgur jokes, that it made me laugh out loud.

Hahaha really funny! They poked fun at some of the characters from the book even on the last movies and had a couple of references from Les Miserables, Lord of the Rings and Twilight.

All in good fun. I highly recommend this show. If it comes to your place, be sure to catch it and have a fun time! You won't be disappointed, unless you're a super hardcore Harry Potter fan that don't like parodies. I won't mind watching it again because I'm sure there will be some new jokes in store for me. Hahaha because I remembered some of the jokes. That's the gist of this post. Starting the year with new toys just like when I was little.

I know it feels kinda shallow but I'm due some upgrades anyway and I had to jump in to the opportunity. For starters, I got myself some awesome running shoes last December. It's my first purchase of rubber shoes ever! I haven't bought any rubber shoes when I was little because I always had someone buy me a pair, and I'm not really that sporty to follow the trends on shoe design, so I never really have any idea what to look for.

I must say, it really made a difference to my morning runs since the shoes are designed for it. I was able to use it for 3 weeks before I had to set it aside for now because they are not meant for Insanity. Good thing with this pair is that the color and design can also be worn with casual clothes.

Though I don't really wear rubber shoes on casual days, at least now I have the option. The sole design is also on Lunargrands, just heard of these shoes the other week, though I really don't find it appealing. But hey, that kind of design is a one up for perfect casual shoes that can double as a quick running shoe. Meet my playlist maker, the iPod Touch! After a year, I finally got hold of another dedicated music player.

I was actually having a hard time deciding on what iPod to get, between the iPod Nano or another iPod Touch. I was considering the Nano since it's cheaper and smaller. But the storage size isn't ideal for me, 16GB is too little for my songs.

First load of songs, I already ate half of it, and we're just midway to January. But it really helped making my playlists, I'm no longer limited to listening only on my computer. Camera is that of the iPhone 4S so it's good and the whole device feels really really light. The case I bought for it made it more holdable and it's a clear case so that I can enjoy the looks of this new iPod.

Cool bonus too are the Coloud earphones I got from Vincent. It sounds OK and has a button and mic making my music listening experience easier since I don't need to unlock the iPod or press anything on it. I set the playlist I want to play in the morning, and viola, I can browse through the songs without hassle. I just unlock the iPod if I want to rate the current song playing, as a way for me to tag which songs goes to my playlist.

Because I haven't owned a white iOS device. After nearly half a decade, I'm retiring my still functioning Nokia phone and got myself an iPhone 5, my first smart phone.

Well, technically not my first smart phone, but I didn't use my old phone that way anyway. I'm enjoying the new experience with having an iPhone even though I'm familiar with the iOS environment, having the call and messaging features plus the mobile Internet on one device is just awesome. Battery life sucks though. I really wish the next technology to progress is battery technology. Well, what can I say about the phone? It's light, sexy, very responsive interface and a breeze to use.

Though I wish there are some more customizable options but were talking about Apple here so you get the idea. Syncs with iCloud so yeah, less hassle updating contacts and calendar schedules.

I wanted it to be naked but decided to have a back cover. Care to share some apps that you like? Productivity, photography, games, etc?

Not that I play on my phone that much anyway. Another change that happened on the start of the year is us moving to another building. Looks like a warehouse right? I like it BUT it doesn't have any windows! The building is nice, lots of food stalls on the first floor, but the way to get there is another story.

Our office is good to look at as the outside is as bad to walk through. Traffic, jeeps, crowd, fly over, pollution, noise. It's crazy irritating. All this on top of your regularly scheduled dope-ass programming. Enjoy the show! Blige Version Notorious B. Listen as PBJ and Errka review some of the best songs of ! The music for this episode was chosen to represent the best of in a wide variety of categories. Click here to donate to help pay the medical bills of Dylan from K Theory!

Flume feat. And the gift of beats, of course. Set 1: PBJ Rudimental feat. Jessie Ware - Confess To Me. Sugar - Party Killer. Exmag - Tilt Mode feat. Holy Ghost! Miguel - PrimeTime. Now reunited in the same city, Cake or Death has been resurrected in podcast form! Bondax - Just Smile For Me feat. Thu, 29 June Fever Dreams. Direct download: CoDJuly Prolly Not.

Hey everyone, long time to no see.