I'd like to welcome everyone that managed to get up that early after the cheese and wine party. Welcome to the talk from the website team. It's just me on the stage, but I will show you the people that are involved a bit later. I started back in 2000, 2001, and got involved in the German translation part. And since about two years, I'm a part of the webmaster team. The history of the website is a rather longish one. We had 13 years, the same website design with just minor tweaks, like the blueish logo or picture was just added some years ago, but it was more or less the same website design for well over 13 years, which is an extremely long time. A lot of people mailed us about having a redesigned on suggestions, but no one really actually made it happen. Most of the times there were accessibility issues involved. Some people wanted to push for JavaScript and things like that, which not really work for accessible devices. And yeah, people turned away because they wanted to get flesh on there and things moving and blinking and what else, but we have very strong requirements with respect to accessibility. We have blind users. We want to also support people who are handicapped vision. And also the translation is a very big part requirement issue. So it took 13 years to get a new web design online. This is the current new look of the website. We managed to get it done for the release of squeeze, but not only for the website, also for Planet TV and org for the wiki and some other systems, and this was a huge effort which took us at least two years of hard work, more or less hard work. There were a lot of people involved in getting this done. And yeah, we thought it didn't manage just to redesign the website once this year. We also did it a second time, thought that was only for a single day. I want to mention the people who are involved in the website team. Runa Sandvik started the ISC channel some years ago. She wanted to participate in Google some of code. Unfortunately, the project wasn't approved, but she stayed involved for a longer time. And I specifically want to mention the ISC channel because it's one of the most important resources these days, which managed to get the web team more active and more involved and in better contact with each other. It didn't work that well through the mailing list before, but the ISC channel is a very, very important resource for the current web team. Kalle Soderman did propose the new design. He worked on it for several years before it got really known and people started to give it a try. We didn't only work for getting it working for the main website, but also for the wiki and that was the reason that made me get interested in his approach and tried and that was the point two years ago where I started to fire up some test sites where we can get his patches applied and get it working and so that people can look at it and that we actually have a chance to work on problems that might appear before we roll it out to our real websites. Also Martin Sover-Hellers did put up one or two test sites, so it wasn't only me who did put up test sites, and there are several people who really did invest a lot of work here which I want to mention. I did mention them alphabetically. I don't want to put them in a specific order. Kalle is a longstanding translator and he's one of the first non-uploading Debian developers that we have. He invested, I can't really remember. We looked it up and he started working on translation after I got involved, but to me it felt like he was there all the time that I got involved in Debian, so it was just about time that he gets the appreciation and was becoming a Debian developer too. Please stand up. So the Danish translation of the website is almost completely just his work and since he became a Debian developer, he's now also part of the webmaster team. Madame Sue is working on the Italian translation. She is also very active in publicity work and Debian women and she does hell a lot of her work and the redesign wouldn't have been possible without Francesca's great work, so thank you. Simon Pella was also quite a lot involved, unfortunately he isn't here, he was at some other event and didn't want to travel yet again shortly after that. He did a lot of work also in that respect and is still very active within the webmaster team. Then there is Tafit, our French contributor from Martinique and he really invested also a lot of not only translation work and not only webmaster stuff but also cleaning up things all across the system. We have regular validation runs and tidy runs which check the HTML code and link links to external sites and he does a lot of cleaning up in that area too together with Francesca and he also is part of the webmaster team nowadays. I have put this into two groups, the first group are all part of the webmaster team, the second groups are not part of the webmaster team but also did a lot of work in that respect. UF, I'm not sure what his real name is, okay, thanks, Damian, Synergy, Ben Armstrong and Sover from with his DSA head on helped a lot and yes, these were more or less the people that made the redesign actually happen, who helped us along this path to get it working. I also have to mention Josip Rodin who is a long standing webmaster and allowed me to become a webmaster in the first place so a lot of thanks to him too. Yeah, I mentioned it before, the website is translated in well over 13 different languages. We have over 5,000 translatable pages, there are almost 100,000 commits through into the CVS system and the versioned history of the website goes back to July 1998, which is an extremely long history, there are not very many projects that go that far back, the kernel of course but lots of other projects don't are not that huge in size. We had this meeting last year in December in Vienna where we managed to get things prepared for the redesign. Unfortunately Francesca and Simon were not able to attend due to timing issues but this was a very productive and useful meeting to get things working. The second person on the right is Karle Södermann which did suggest the design and did most of the work which just put it into place and yes, I always welcome people get more involved in the website team, I would suggest you to get involved either on IOC on our mailing list, there are some complaints that usually come up, one of them is it's CVS, no one uses CVS nowadays, well it's not true we use it and it works extremely well for us and we don't see a real technically reason to move away from CVS, that doesn't mean that we are objecting to moving away from CVS but the options usually also have the problems like moving to SVN makes it really difficult for some areas to do commits over different trees when you don't have a full checkout, SVN obviously supports partial checkout which might be very useful so actually and it of course offers offline diffing which don't require server access which would be a quite nice addition but someone has to invest the work for Git it might be more a bit of a problem because subdirectory checkout is not supported in Git and the complete web tree is rather huge and if you have to transfer the complete history to your local system it might get troublesome for some translators who are not that well connected like most of us so this might be a problem when people try to move to Git but none of these are really hard objections there's just no one really willing to do the work and the people that usually complain about that we still use CVS are not willing to help out with getting it converted to some other version control system the second next complain is rather similar but it's using WML no one uses WML these days and it's it's not developed anymore yeah it's yeah that's one of the things that people claim there's not much of progress or development going on but it's still in maintenance state so yeah it works well for us and all the sort of modern CMS systems usually have also their merits especially with respect to translation work they often don't offer diff tools for getting things translated or if they do it's it's flaky and the result is put into place with a complete other way of content they don't support content negotiation which we use for translated pages but use some other system with where you have to more or less translate every single page otherwise you will get switched to English and be stuck with English when you browse from there and things like that so there's still no hard objection in that direction but it needs people to invest some efforts to get it working and yes wait for the microphone please and please stand up and say your name for the people on the stream mostly so hi yeah it works i'm max lebecker debian packageer for the wml stuff thank you my question is do we still have web mirrors because i think that was the hard objection against and anything dynamical we do still have web mirrors but all the web mirrors are on debian org machines so we are able to do whatever we want on them these days they are not mirrored through uh two boxes that we don't can uh change anything on them so currently we do have boxes all the all everything that is behind w3 uh debian org is is administrated by dsa and we can get changes done there there will be some talk in the buff later uh i'm i will be mentioning all the tracks that will be coming up which are related to web services um and we can talk there about these things maybe it will be covered by sobel in his talk so yes that's more or less the standing where we are we want to get more people involved we have a lot of active members within the webmaster team these days so we want to get more things back onto the website some things over the years uh got put into the wiki which more or less should belong on the website mostly for translation purposes but for making it more official um we will be working on improving navigation and some moving some parts around we are always welcoming input in that respect um so please get involved um with changing the website to a new design you more or less might have found out that the web team is still there or rather is again there and very active and get things done so please don't try to do things outside the web team come here get involved and help us out um like mentioned um there will be more tracks uh more talks in this track at three there will be tracking website users which is a tough topic that we understand um and this buff is about how to address the social and technical limitations like preserving privacy and everything that goes with it at four o'clock there will be the publicity buff at five uh i give a talk about backport improvements that we want to get applied um backports is an official service these days but it is still lacking in some areas and this buff is meant to address those to list them and to be able to work on them and then at six there will be the deviant wiki buff which is about the wiki itself all of the uh other talks within or buffs within this track will not happen this big auditorium but in the small round room um if you come into the venue on the main entrance go to the right to the round room yes so are there any questions you are always wanted to ask the web team but never dared to yes um i think to make the website a bit more attractive some more i'll not say dynamic content but um more changes of the content of the main site what might attract some more users nowadays we only have the debian news rss feed um topics there the rest of the content just is stale uh yes that's a very valid uh comment um we sort of should have get more uh we should have tried to maybe get the debconf more present on the website and we also have something like um debian project news so we could have an abstract on the on the top and then just a read more button which redirects to the to the debian project news website or or link to the identica page or um people behind debian this weekend debian are i think great things which could be the upcoming block debian orc sing yes um toughest can you note these things down please so it doesn't it doesn't get lost i mean it's on the stream but on goby debian or on irc um just note it down and we will put it together just give the microphone around hello um christian perrier i never i think i never did website translation in french so yeah sorry and i would like to ask you uh is has there been some work uh to use get text based translation for the website instead of w ml of course you tell me that it's a good improvement and it needs someone to do the work um well there are there is get text used for some parts like the navigation uh things and common parts which are used uh in in in some areas uh using get text for the whole website of course it would need someone to do it uh on the other hand i'm not that certain if uh there's the thing with get text like fuzzy translations and and that the thing would be what to do with them present the english an english paragraph within a french page um might work but uh for things like eggy a swedish page and someone who would prefer norwegian to english um would get an english paragraph within the swedish page if it's not translated and i'm not that totally convinced that this would be a step forward and would improve the thing so it's more or less a tricky issue which should be discussed or properly what to do with fuzzy paragraphs and if that is decided we might give it a try for maybe some some small sub directory see how it works out there and move on from that point i think my my main point was of course not to on technical value of this or that mostly to lower the entry barrier to work on translation uh for the website i feel like it the use of w ml makes it a little bit difficult for more difficult for people who want to get involved than just using p o files that's just a feeling of mine you know um well it's yeah historical perspective i see i think the challenges that the website is facing today are basically the same ones that it was facing 10 years ago and in more in general uh with the social whole issue what about the news what about what's happening now and what about the updated stuff uh it's the same challenge that the mailing lists have uh and have had uh 10 or 15 years ago uh things are happening on the front uh that's the public website public wiki public whatever and then there's things happening in the on at the back end uh but we require the users to delve into the back end to figure out what's new and what's updated and similarly uh we show people uh various languages and various you know we enable content negotiation when nobody did that and we have all these cool useful things but to actually edit them you have to delve into the back back end and learn how to use cvs and everything and uh it was interesting that always the user oriented user concentrated side of debian and the developer concentrated oriented side of debian conflict in this area uh notice how uh the common issues are why do we use cvs all of us know about the technical in in the uh deficiencies of cvs but um switching to a more advanced system this uh without a layer of user friendliness uh detracts from the basic goal and the basic goal is still serve the users and the web user is the most simplest form of user that we have sorry sorry that's that offends anyone but that's true uh why the internet is popular because the web is making things simple and uh so this is the the the same basically the same conundrum is always in place how to make things that are complicated how to make them more simple uh everything is basically the same idea and uh well obviously we are failing because everything would be like facebook if it were successful you know everybody would be using our website and uh seeing all the translations helping translate everything so uh but uh to answer the question uh about christians questions why don't we use one complicated technology over one another because nobody can really demonstrate uh the that the technical advantage or the user advantage of get text is so high that it would be worth spending time on it to implement it in the back end and then in the front end I think that's the answer because that's usually the answer to every question that we have yeah for me as a translator working on a p o file is not much more convenient than working on a file that I can create a diff from and see you know what files are yes of course you see you see the problem yeah we want uh people to translate without knowing that it goes into a file or in a database or in a I don't know what and I'm afraid you're not the average translator on that that's also very true yes do you have a wish list for a new cms to switch to um for features probably nothing that uh cms that is able to generate static pages and doesn't require php in the back end that's more or less the without losing all the translation we currently have because I think the php back end might get tricky to convince dsa to make it work but it really has to be I think they could become convinced but that would really mean uh that that we are moving forward and that it gets things better for for for the users in the end more questions no more questions maybe my opinion is biased too but uh I think that um change uh we WML is quite okay for the website if the problem is that is not um how to say um easy enough for for people to to enter it then maybe I think that it it would be um um um better use of our efforts to um help people understanding it such as doing what I've been done sometimes as IRC training sessions or a training session on some other channel or um uh trying to uh spend the energy is energies into into um learning people uh into helping people um switching to another cms to another um management system um I think it would require many many energies more than and would have um less uh results than trying to help people understanding it I just want to point out um again that the the things we mentioned are not a hard rejection and that we are open for discussions things just because we have an opinion and just because we are the webmasters doesn't mean we don't listen to reasoning so if you are able to come up with something convincing don't feel shy you you're allowed to have your own opinion yeah I just want to comment uh people sometimes don't realize what really is uh in our advanced what is advanced in our WML setup uh we have a system that uh allows all the translators to define how dates for example are printed on the on every page uh on debian that uses dates so for example uh the 6th of May 2011 uh the formatting of this string is common along uh everywhere on the on the website so uh typically a cms uh a typical cms software today advertises oh we make things easy to edit but uh a typical cms does not make uh make it easy to edit metadata such as this it doesn't make it really easy to um track history of things so you really need something really advanced to to to compete with WML that that's the problem I think more questions um someone suggested obviously icky wicky and it's quite popular these days actually it might work I haven't picked myself into it and if someone is willing to take a closer look I think icky wicky might be uh step forward here it depends on uh if there's still possible to just check out your own language in English um which might be troublesome doing it with gits uh but should be possible with sub modules which I personally know nothing about I just heard that it might be the way to go um but I'm doing things on the web and potentially offering some we we really need uh to offer people to just fetch the file on the web potentially just in the footer adding a link the source to this file translation for this file and going from there might might get more people involved in that area I actually just have a more comment no question it's just a very positive thing I just wanted to mention that I'm very happy that you are mentioning accessibility on your own so there is actually no need for the accessibility team to um to do anything in the website area uh because the site is just perfectly accessible since like eight years uh or since I started to use it so uh just wanted to say that's really great how it is from an accessibility standpoint it worked thank you I was just about I was just about asking that um question um is um when we switched to the new layout did anything chain uh did anything get worse for you or get got better no I didn't uh I didn't see any degradation so yes that was also one of the reasons why I got quite convinced that Carlos approach is a good one because I noticed that he spent a lot of time also on accessibility thoughts how to potentially also improve navigation and things like that so he really put a lot of work into it it's just great from my standpoint to see that people are thinking about these issues on their own so there's absolutely no need for me to I think we did some but we would still like to welcome you on the team yeah I'm subscribed and that's commit success but there was absolutely no need to do anything I think we did some last minute color adjustments um for the red green or lines I think yes I think that there was some issues with red green color blinds which which got a bit adapted in the in the last minutes before coming up with a new layout so if if we have persons with color blindness in here help us um to to get the colors better for you anyone in here yep any more questions no more no more questions and then enjoy the lunch


Hi, I'm Radho. I have completed Introduction to Data Analytics course. The course structure and the examination structure was fantastic. It was intuitive and it made us to analyze and answer each question rather than just compute or just fill up the blank. So it was a very innovative and an appreciable approach. Earlier I also took Introduction to Information Security course. That course was also wonderful and I feel the subsequent courses on the information security can be provided wherein during that course it was told that subsequent courses within the practical exposure would be given. So I would welcome those courses too. And of course for Introduction to Data Analytics I would welcome the subsequent higher level courses wherein I would be happy if we are allowed to use and explore data analysis tools like ARP and SAS and those kind of tools and the problems if you could answer them in a more industry-relevant way. So that we could readily use it in our organization wherever we work and that way it will be more practically feasible to use our technical knowledge in our courses. So thank you for... And I would like these courses, these data courses to continuously improve and to constantly request IIT to continuously take these courses further to further level. Thank you sir.


15 degrees out and we are heading to a call. We're driving on a stone road, which there ain't that many of them out here, but it definitely ain't normal. Let's go see what's going on. This heat pump is not running. I assume they've either got gas or electric as an auxiliary heat. Okay, well, we're looking at a fancy train unit. It's got all kinds of blinking lights down here. Look at all that. We've got some reds, some blues, some greens. We've got all kinds of dancing lights going on. So what this means here is, we've got to read through the manual and find out how it works. Just looking at this crappy solder joints. Somebody didn't know how to braise. Looks to me like they're leaking. Look at all the oil.  They're getting all sprung on plastic, aren't they? I think it's all things made out of plastic. It's all insulated, which is nice. Well, we better see if we can figure out what kind of codes are blinking here. Do we have anything written on the back side of that? Nope. Gotta love train. Hard to stop one. Even harder to get one going. Well, we have an EXV here. Let's find the most expensive unit we've got and then let's do a shitty job on installing it. I love it. And I'm not guaranteeing it probably ain't set up right. If you can't clean up their wiring for that, chances are they probably didn't start it right. Fan speeds aren't set correctly. Tonnage is probably not set correctly. It didn't braise and shut correctly. It's just sad. People pay good money for stuff and then people do a half-ass install. It's truly sad. It's not right. Guys, I'm not a train fan.  They got some nice things about them. I just, it's just like anything. You can have some of the best equipment on the market, but if you have an idiot installing it, it doesn't do you any good. Filter feels like it's plugged up pretty good. Yeah, it's not good at all. That's matted shut. Oh my God, that's nasty. Okay, you see what bright that baby is? Yeah. There's no airflow whatsoever. So my guess is this thing was probably blocking off the airflow so badly that it probably overheated the coil, which need a new filter for sure. We're gonna leave that out for now.  You got 80-bitty around on there. It's not a lot of return. Not a lot of return. If you're lucky, it's 14. The installer's guide here. I mean, we're just starting off. I mean, we've got, I'm gonna check for a leak. I mean, I bug guarantee right now we're low on refrigerant and we had an airflow issue. So there is test button, gas temperature sensor. Okay, nice thing is you can see that the condenser coil is right out there. So it's less than three foot, four foot from the unit. So I went ahead and read through it. They had the sequence operation, which I gotta say, this is pretty well laid out. Went through, seen how it runs, seen how the fan kicks up and down. Also told me where to find the codes at, which is in the service fact book. Told me which board was what. One's the expansion valve, one is the blower board. If it's low, we may end up just pulling the charge and weighing it back in because we may not have a whole lot of options. Okay, so these batteries do not like the 14 degree weather. They have to warm up. I'm not picking up any leaks on anything. I've already scanned all over. I've got nothing on these fittings at all. I've kind of scanned up and down all into there. Did it with this one just in case the other one's acting up because you know, it's kind of like, okay, I've been having a lot of leaks lately but I'm not finding and I'm not, not getting anything. I'm gonna grab the H10 just to make certain because that oil came from somewhere. I'm not getting anything with this thing at all. It's going all the way around it. Falling the pipe everywhere and first test vial unless there's no pressure on it. I haven't ran this thing for a while. This is what I love about it. I mean, this thing is a tank in a new Milwaukee battery pack. I can run this thing off of that. So if my battery goes dead, I can plug it into that. That's a God sent right there.  We're gonna skip the refrigerant issues. I'm gonna probably start this thing back up with a failure that's not completely plugged solid and see how she reacts. All right, so you're supposed to kill power. Within 30 seconds, press and hold the test button for one to two seconds. And if a fault occurs during the test mode, the LED will flash the code and continue to test. One, two, three, four, five, six, seven, eight, nine, 10, 11, 11 again. Electronic valve controls detective fault condition refer to the LED of the EVC, which back to the sensor. So let's see if we can find that sensor that they're claiming is problematic. See if we can check resistance on it. Okay, so we went ahead and tried resetting the board. Had to go out and grab my 87.5. This is my electronics meter. He's a for generators, super accurate, bench top style meter.  You can see that there's, you can't get a full size probe in there. So you've got to back probe it. If you go to the front, you're going to wallow out the pin and then it's not going to be tight on the control board. So you back probe it. There's something they taught us in the generators, you know, so anyhow, the sensors that they have on the coil is this orange one right here and this black one. We can turn on the light here to make it a little easier to see. They said gas, which would make sense because that hot gas or whether it's going to be cool gas, it's going to be gas and this is going to be liquid. So that's your orange one and your black one. It comes up to this prong here, which goes up to the electronic expansion valve board, which is going up to here and here is the charts. Well, one of the things they wanted you to do is verify you had five volts on the control board. We do have 4.8 volts on that board. Now we come over here to the chart to see what your thermistor value should be and we were right, I think 12,000 area and that puts us somewhere in that 66 degree mark on the orange one, but not on the black one. The black one doesn't have anything, which tells me it's open, but that's also measuring it back here. You've got this long wire that goes through all this stuff and eventually gets down to here. So what I'm going to do is I'm going to check it here at the sensor and see if it truly is the sensor or is it the wire. So we're going to go ahead and back probe that one and they've got little rubber car style plugs on there to keep the moisture out of it. So let me back probe that real quick. What I ended up doing was plugging back in the wiring harness. The black comes all the way down to here. I've got these probes that'll actually puncture it. I don't recommend this, but since we were out nothing, we are at 4.9 volts. We are getting into the wires there and I have links to these, should have links to these down in the section down below. Always have it in my toolbox area. You guys just need to look around a little bit down below there, all kinds of information. Spray it with big blue. Don't see anything on the suction line, but far as that there, we are getting voltage down there, which tells me that I am getting a good connection. We just have a bad sensor. Seems to be a 10K area sensor, which we'll just order one and get the right one. I was gonna swap the orange and the black here, but they put male and female. They did opposite so that you don't get those backwards. Otherwise, everything seems to be probably working fine. Unfortunately, it does not appear that the heat pump will run without that sensor. It's monitoring that. And there's not a whole lot I can do right now. We're gonna go ahead and just order the right one, get the model number and stuff off the unit. Should be good to go. Looks like everything I need's in this book here. There's those probes that I've got for back probing. I have probes here that you can pull apart, which makes it a lot easier. These here just plug into it. There's all kinds of different ones. I have the arc flash style probes here. So they're expensive, but so is hospital bills. Then I just keep it all down here, and then I will just stick them into the foam so they don't fly away. They've got heat, the auxiliary heat's working. You don't really wanna use these on high voltage, even though I do that sometimes with my generators. It's not safe. And also it can cause problems with the wires insulation. It can cause a rot out, stuff like that. Wrap it up for now. Hopefully we'll get back out. That was days later. We're back, I've got a new trimester here for this unit. And we got a new air filter. So we've got it setting right there. The carrier one fit just perfect, even though that one there is kind of a Linux, but it'll work just great. There was in very small amount of difference of each other, just clamped on there. Okay, so I had to go back through my videos to see what it was. They sent me the wrong one. They sent me the liquid sensor. I didn't need the liquid sensor, but because it's the same resistance as the gas sensor, I was able to put the gas sensor on with the old plug. So if it ever goes back again, they'll be able to just unhook it and change it. Use some of the 3M Scotch locks, what have you. That's got that dielectric grease type stuff in there to keep the moisture out. So we've got a good connection there. Phone company's been using these things for years. And guess what? We don't have a fault code number four anymore. That went away.  Now, the way to erase and clear the faults, that way we got a fresh start, press the test button for 10 to 12 seconds, release it, wait five seconds, cycle the power. Let's go ahead and put this back on regular heat. It's kind of interesting. I don't hear the fan running, but I can hear the condenser running. And you can see the fan running. So when you look at the thermostat, it says waiting, but first stage. I don't know if the waiting is for auxiliary heat, but that suction line, which, you know, hot gas is not very hot. So we might be on the right track, like I said originally, that it might be low on refrigerant. It's obviously got those sensors that they're using probably to help control fan speed, I'm assuming. But it's not all that hot.  That's nice. It's not very good weather out here. Not good weather for trying to get this set correctly. So we're gonna go ahead and get this thing valved up and see what's going on here. We're still in low, so we gotta wait for it to go up to high yet. I got it apart and you can see the capacitor's mushroom there. Also got a couple of wires there about ready to fall off, which is great. Cut corners, Charlie, and didn't put a disconnect box. So you gotta go inside and turn the power off the breaker box, wherever that's at. And like I said, we're about 20, 27 degrees out here and running about 275 on the head. That's in low. Can't really judge a whole lot. Gotta read back through this thing. It's been a year and a half since I worked on one of these by train, but I know you got to short some crap down here to get this thing into a test mode or charge mode, what have you. I think you just gotta hit that button here. It's been, like I said, but with that capacitor being bad like that, that ain't gonna make it run right. So we gotta get that replaced. You would think the electrical goes up here and across the ceiling, but I'm having a heck of a time finding it and no one's here to ask. Okay, so I've looked the whole farmhouse over and you know, everybody would put their breaker box behind this. There's your box. And to think it would've cost them $20, $15 to put a cheap disconnect box on that. All right, we got the capacitor in there. Got the breaker on. I went ahead and yanked out the charging facts and all that happy stuff. Anyhow, just like anything, when it's below 55 degrees, they want you to pull the charge and weigh it in. That's the only way they wanna do it. If you're gonna try to do it any other way with their manual charging method and all that crap, it's, there's no good way to do it, but they do give you a cheater chart in the back, which is never really accurate. We're going to see if we can get close to some of this. It's feeling a little better. We might be all right, I'm hoping. It's feeling better than it did before and that's probably because that capacitor, it sounded like the compressor was running, but definitely is gonna run better with the capacitor that's properly sized. It had a hard start on there, which probably got it going, but it probably wasn't pumping at full speed. I don't know. If something wasn't right, I know that and it's feeling better. As you can see, we've got the oval and still the round on there. It's all I had, but at least it was 440 and 25 microfarad. We're still in low. We're at 281 and 83. Normally you don't go by just pressures, but they need a whole lot more to pick from. So at 25, we should be somewhere around 250 to no more than about 300 on our high side and on our low side and first stage. We're gonna be somewhere right in that 60 to somewhere around 80. And we're looking good. So I'm gonna say we're fine. It still hasn't switched over yet. I don't wanna spend all day here. It's already 315 and everything's looking a lot better than what it was earlier. I would say what happened was that capacitor wasn't getting the compressor going like it should.  I don't know. As I've mentioned times before guys, I'm not a training guy, but all the equipment works the same.  But from what I'm seeing, everything seems to be fine. I'm gonna check the temperature rise on it yet and see what we got there. What, that's it? Where's the end of the video? Exactly, that's what I was looking for. I can't find it. So I'm just gonna go ahead and end it this way. The unit eventually came into second stage. It went right along with the charts of what we've seen there. Everything seemed to be working fine. The capacitor was our major issue along with the sensor. The sensor caused the system to shut down. That's the reason why it wasn't running. At the end there, we weren't getting a lot of heat. I think the compressor wasn't coming up to full speed. A lot of times start capacitors can get them going, but it just doesn't sustain it. So that's about it, guys. It's been at least four weeks. It's been running good ever since then. I haven't heard nothing back otherwise. So that's gonna wrap that one up. If you guys enjoyed the video and you wanna see more like it, if you would, please consider subscribing. Don't forget to hit the like button. Check out the links down below. You can find me on Instagram and Facebook both. And until next time, guys, we will catch you on the next one.


Good morning How's it going? My name is John Horgan. Thank you so much USIP and resolve Network for bringing me back We spoke a few months ago, and if I recall correctly used you asked me to Talk about everything. I think people ought to know about terrorist psychology and reset the priorities in seven minutes No problem. Here we go I Really thought carefully about this idea of resetting priorities and what it means and you know Because it's always a danger of of of saying well Why don't we just cast it all aside and move on and and and you know try to tell a different story? I think there's a great danger in that so it is critical to take a very careful look at where we've come from and to Get a sense of what we have achieved There are three major themes that I think have have have really cropped up time and time and time again in The last 50 years of research on terrorist psychology 48 years to be precise What do terrorists have in common? broadly What distinguishes them from? people who don't engage in terrorism and far more recently So what does all of that mean is There enough for us to pull from what we know about those questions so far For us to use that knowledge in any way that is realistic and Actionable and it's that final question that I really want to focus on for for most of what I want to present today This of course has been our bugbearer our obsession for the past 15 years Lots of definitions out there, but by and large this word refers to the process whereby people Change to such an extent that they are willing to become involved in Violent extremism Perhaps one of the most Concise if not elegant Summations of what we know from that research came from our Colleagues just around the corner from here at George Washington University's program on extremism and this quote really is Significant to me for a few reasons It's not just because it happens to support my own thesis But they say the profiles differ widely in race age social class education and family background And then here comes the understatement their motivations are equally diverse and defy easy analysis The significance of that quote for me is that it doesn't if this is not about terrorists writ large. It's not about Making the statement to apply to the variety of different kinds of groups out there this assertion Seamus and his colleagues were pointing to is evident even in Extremists who wanted to join ISIS from North America This diversity and complexity It is What we have found I've spoken to policy makers some policy makers Who feel that that this kind of statement? If it is an accurate reflection is a stunning indictment of us in the academic world Having not really made a lot of progress if that's the outcome then wow The other view is that well That's a very naive statement because the other view is no this is the outcome of some of the best research We have out there This is the reality and we just can't shy away from it. It is diverse It is complex that is the nature of terrorism and perhaps the true challenge then is to figure out How we channel that complexity into solutions? Easy peasy right Radicalization remains a hard problem for two reasons now I'm not the first person to point this out Heidi Ellis new I'm Ibu Hanna and a whole bunch of radicalization scholars have been here before Multifinality and equifinality aren't just two wonderful words to casually throw into dinner conversation every now and again But if you want to quickly quickly explain why radicalization it will always be a hard problem Use these two concepts. Okay The first multi-finality is where one factor can lead to several outcomes All of you study radicalization will know what I'm talking about here We're all worried about exposure to violent extremist content and what it might mean Yes, it might be a factor in leading someone down the road to terrorism unquestionably It also might lead to protest it also might lead to mobilizing someone into taking action against this kind of content It might lead to self-harm. It might lead to multiple different outcomes The second issue it might seem similar, but there's a key difference here And that's when the same outcome can come from multiple predictors And let's not even talk about terrorism for a second Let's talk about having radical views or having extremist views What are all of the kinds of things that might factor into that and fuel that? it is everything from Following a certain Twitter account to religious indoctrination to foreign occupation to you name it I Firmly believe that we are in the golden age of terrorism research I think we have come so far in the last 20 years that we are no longer searching for the drivers of Anti-extremism we have all of the pieces of the puzzle in front of us. We just don't know how they all fit together One of the greatest challenges for us in the research world is to figure out the nature of that sequence the sequence of radicalization And how those bits work Also faced with the dilemma that the sequence is not going to work The same way for every single person even within the same group It's far easier to answer the question of what terrorists have in common The problem here and to go back to a Michael and JM's presentation at the beginning is that we get so caught up in the Ideology the content of the ideology that we missed the bigger picture here.  This is what you have in common There is genuine legitimate Moral outrage at some injustice perceived or otherwise. It doesn't really make any difference in the eye of the believer So I'm you this this this should not be This should not be new to you Terrorists have to work hard to convince themselves and others that what they're doing is just it's necessary and it's urgent this is one of the Powerful features of ideology as a mobilizing power and I mean all kinds of ideologies. They provide an urgency to action talk of imminent invasion is very powerful in terms of Convincing someone that if we don't act now it will be too late and and and your way of life will be fundamentally at risk And the one thing that all terrorists have in common They all believe that their actions will help bring around or bring about a better future Again, this is this is across the spectrum of groups for for all of the time I've been studying terrorism I have been loathe to think about a sort of an overarching grand theory of terrorism But I think if we strip away the ideologies the content of the ideology We're onto something far more meaningful Now resetting priorities Well, look the reality is different forms of terrorism are going to come and go They go up they go down whatever metaphor whatever analogy waves or something else we want to use that's not going to change I'm not so naive as to think that especially in the policy world that there aren't going to be discussions around well What do we call our response? What do we what? How do we characterize our responses? Let's call it CVE. Well, let's not call it CVE. Let's call it something else now We'll call it perhaps PVE Perhaps we'll call it something else now again, you know terrorism to an academic. It doesn't really matter We're still going to have to address these issues. We're still going to have to come up with actionable solutions Where I think we really ought to be going is this and this is a this is uncomfortable ground for an academic because we're not used to I'm no shame in saying this. We're not used to speaking to policymakers. We are especially uncomfortable at offering Perfect information and in perfect knowledge if we think it's going to be used in some way And I think that's the thing that we struggle with and I think that that is one of the things We're going to have to somehow address through uncomfortable, but necessary and overdue conversations This issue of the radicalization process and its sequencing I mean, I don't know how long it's going to take us to crack that if at all, but we can't wait until we do So the question is what do we do in the meantime? I think it is well within our grasp to identify Intervention stages based on what current knowledge and and tools we have at our disposal a few years ago with some funding from the National Institute of Justice my colleague Mike, Mick Williams, and I found that those best Position to spot the signs of growing radicalization weren't Religious scholars. They weren't parents. They weren't teachers. They were the peers of people themselves So we spent two years talking to those peers to try to figure out well if your best position Why aren't you doing anything about it? And we found that well They're actually very very people are peers are very very reluctant to report concerns about radicalization. I Unfairly thought it was because well, maybe they just maybe they just hate cops Maybe they just hate law enforcement Wasn't that at all the overarching reality was that this was the reason for this bystander effect had to do with fear Now that to me seems to be a non ideological bipartisan grounds for thinking about CVE that addresses the problem in a far more practical way Then perhaps we have been alluding to in recent times And just a simple example that I just put out there to say that sometimes we do lose focus What we actually can do so thinking about Anonymous convenient solutions to reporting to reporting concerns But here's what I want to really leave you with today I'm all for resetting priorities. Don't get me wrong But before I simply you know give you a shopping list of look here's all the things I would really love to see funded in terrorism research for the next five ten years. I can do that trust me These are some of the bigger issues that I think are going to pose us pose much much bigger problems for us in the immediate future And I mean short to medium-term future I I'm going to disagree with my learning colleagues from this morning I see very little evidence that we're taking prevention effort seriously at all Certainly domestically. I think we're so far behind. We don't even know it We are in the midst of not just a national Epidemic of extreme right-wing Violence, this is we're seeing a global resurgence in with this And I don't think we have any clue of just how insidious this really is. I mean present company excluded, of course But this is this is not something that's going to go away This is something that is is is serious on levels that I don't think we have really grappled with yet There is decreasing Public faith in both government solutions to this and in scientific answers People don't want to hear that it's complex. I Can't tell I can't give you any other story other than it's complex because this is this is what I do Might mean that I need to go off and find a different line of work, but I can't Simplify the radicalization process in any other way It is complex and and that's the reality of it We're seeing increased polarization and nonviolent radicalization. I mean this is not again This is this is this is surely not news to you and more worryingly We are seeing a return to simplistic ways of thinking about terrorism So the question is what are we going to do about it? I'm going to I know I'm out of time I'm going to finish with what I started with I think terrorism research has never been in better shape There's a debate a number of years ago in academic circles It sort of seeped out a little bit about you know, whether it we've gone stagnant or not I completely disagree with that theory. I think it is better than ever before The evidence the evidence base is better. The quality of data is far far better than we've ever seen The question is now how do we move that research imperfect as it might be? Interactionable knowledge. I think that is the challenge Before us. Thank you so much


So cold outside, but that shouldn't stop you from enjoying some early spring outdoor activities. So let's talk about some ways to protect yourself from the cold. First, start by wearing a thin synthetic layer next to your skin. This will help wick away sweat as you perspire and help keep you warm. Also, be sure to always have gloves on. This will help prevent frostbite and your hands getting too cold. And remember to keep a hat on hand as well because this will help retain heat. Next, be sure to always carry sunglasses. That's right, sunglasses will help protect your eyes from the UV rays that reflect off of the snow and ice. Lastly, be sure to always stay properly hydrated. Even though you may not feel thirsty, you need to always have water on hand. And remember, don't forget your sunscreen.  I gotta go finish my run.


Namaste. Welcome to the session Mathematical Modelling of Mechanical Elements Translation Motion. At the end of this session, students will be able to describe mathematical equations of basic mechanical elements for translational motion. In control system, the important task is to develop a mathematical model of the process of interest. Once it is done, the analysis part of the system becomes easier. The analysis requires mathematical models of the processes in the system which is obtained through equations and formulae that can predict how the various devices will behave. So, what is mathematical model of a system? So, it is a set of mathematical equations describing the dynamic characteristics of a system. So, let us see mathematical modeling of a system. So, there are many methods to obtain a model of a system. Now, a set of differential equations are used to represent dynamic behavior of a system and these equations are based on the fundamental laws of physical system. For example, if it is a motion of mechanical system, we can use Newton's law of motion to find out the mathematical model equations. And if it is electrical system, then we can apply Kirchhoff's law to find out the equations which are representing mathematical model of a electrical system. So, modeling of a system can be done by input output representation using differential equations in terms of function of time. So, for the mechanical system which is having motion, we have to use Newton's law of motion. So, take a pause here and recall what are the Newton's laws of motion. So, there are three laws of motion. The first law, every object in a state of uniform motion will remain in that state of motion unless an external force acts on it. The second law is force equals mass times acceleration. So, it is given as F is equal to M into A. Third law says for every action, there is an equivalent opposite reaction. So, based on these Newton's laws of motion, we are going to find out mathematical model for mechanical system. So, let us see mechanical system and its basic elements. So, most of the control system contain mechanical or electrical or both types of elements and components. So, in the analysis of mechanical systems, three essential basic elements are mass, spring and dashpot which occurs in various ways. So, first is a mass. So, what is mass? The ideal mass element represents a particle of a mass of a body concentrated at the center of the mass and it has inertia. So, in the mathematical model of mechanical system, the mass is represented by this symbol. The second element is you can see here spring. So, a spring may be having different types like helical compression spring, helical extension spring, conical spring, torsion spring. Then, there are different types of springs. So, the elastic deformation of a body is represented by the ideal element known as spring. It stores energy during the variation of its shape due to elastic deformation resulting from the application of a force. The spring is represented by this symbol. Again, it is applied by force F and having displacement X. The third element you can observe here which is showing a shock absorber which is nothing but damper or a dashpot. So, friction exists in physical system whenever mechanical surfaces are operated in sliding contact. It has three types viscous, static and coulomb. In many situations, viscous friction dominates over other two types static and coulomb and viscous is generally considered. So, dampers are used to minimize the vibrations to improve the dynamics of the system. So, in the mathematical modeling of mechanical system, damper is represented by this symbol. Now, let us see translation motion in mechanical system. So, a mechanical system in which motion is taking place along the straight line is known as translation motion. These systems are characterized by displacement, linear velocity and linear acceleration.  So, when we are applying the force to the spring, there will be displacement. Let us consider a displacement here D. So, F k is directly proportional to displacement X. So, the equation F k is given as F k is equal to k into X, whereas F k is force in Newton. So, according to the Newton's law of motion, when you are applying force, there will be equivalent opposite force. So, here F k is nothing but reactive force generated by the spring. Here k is stiffness constant, X is displacement in M. So, F is equal to F k. So, we can write here as F k is k into X. So, the equation becomes F is equal to k into X. So, this is the equation for spring. Now, let us consider spring as displacement from both ends. So, as shown in diagram, the spring has displacement X 1 and X 2, then let us write equation for the force. So, according to the equation, F k is equal to k into X 1 minus X 2 as there are two displacements and according to the Newton's third law of motion, F is equal to F k. So, F becomes F is equal to k into X 1 minus X 2. Now, let us consider the second element damper or a dash pot. So, when force F is applied to the damper, it produces a reactive force F B, which is proportional to the velocity. Now, in this diagram, you can see here, the force is applied to the damper and therefore, it will be proportional to velocity. So, the reactive force is represented by F B is proportional to dx by dt. So, F B is equal to B into dx by dt, where B is viscous friction coefficient of a damper and according to Newton's third law of motion, F is equal to F B. So, F becomes F is equal to B into dx by dt. Now, let us consider when dash pot has displacement at both ends as shown in figure. So, the equation becomes here F B is equal to B into dx 1 by dt minus dx 2 by dt. So, again F is equal to F B. So, F becomes B into dx 1 by dt minus dx 2 by dt. Now, the third element is mass. So, when a force F is applied to a mechanical body of mass M, displacement takes place and a reactive force F M is generated, which is proportional to the acceleration. In this diagram, you can see a mass is forced by a person. So, when you are applying a force here, there will be acceleration. So, F M is proportional to acceleration and the same can be written as F M is equal to M into A. So, F M is equal to M into d square x by dt square and as we know that Newton's third law of motion F is equal to F M. So, hence F is equal to M into d square x by dt square. And suppose there are two displacements for a mass, then the equation will be same that is F is equal to M into d square x by dt square. Now, for a mathematical modeling of a mechanical system, one has to draw free body diagram. So, to obtain the mathematical model of a mechanical system, it is necessary to draw a free body diagram including the various forces acting on it. Now, let us see the procedure to draw free body diagram. The first step is to assume the direction of displacement of the mass as positive direction. In the next step, we are going to find out all the forces with the directions acting on the mass. And in the third step, we are using Newton's law of motion to express all the forces in terms of displacement or velocity of the mass. Now, let us have one example here. So, draw free body diagram for given mechanical translation system. So, step number n is considered the mass alone. So, from the given diagram, we are considering mass alone with the force F of t and displacement x. Then in the next step, we are drawing the free body with all the forces. So, here the forces acting on a mass are nothing, but due to the damper spring and mass itself. So, reactive forces are F m which is because of mass F b which is reactive force generated by the damper and F k which is reactive force generated by the spring. And in the next step, we are representing all the forces in the terms of displacement using Newton's law of motion in the form of equation. So, here the equation F of t becomes m into d square x by dt square plus b into dx by dt plus kx. So, in this way, we can find out mathematical modeling of a translational motion in mechanical system. These are references. Thank you.


Hello and welcome to the session I am Deepika here. Let's discuss a question which says two dice are thrown simultaneously if x denotes the number of sixes find the expectation of x. Let us first understand how to find the mean of our random variable. Let x be our random variable whose possible values x1, x2, x3, so on, xn occur with probabilities p1, p2, p3, so on, pn respectively. The mean of x denoted by mu is the number sigma xi pi i varying from 1 to n. Now the mean of our random variable x is also called the expectation of x and this is denoted by ex. So we have ex is equal to mu which is equal to sigma xi pi i varying from 1 to n. In other words the mean or expectation of our random variable x is the sum of the products of all possible values of x by their respective probabilities. So this is the key idea behind our question. We will take the help of this key idea to solve the above question. Now let's start the solution. Now according to the question two guys are thrown simultaneously. So when two guys are thrown the sample space of this experiment has 36 elements. Now the elements of this sample space are ordered pairs where the first digit shows the number on the first die and the second digit shows the number on the second die when two dies are thrown simultaneously. That is the sample space of the given experiment 36 elements. Again we are given if x denotes the number of sixes we have to find the expectation of x. So the random variable x that is the number of sixes on the two dies takes the values 0, 1 or 2 because in these ordered pairs either we have no sixes or we have one six or we have two sixes so the random variable x can take values 0, 1 or 2. So the probability distribution x is when x is 0 or in the sample space there are 25 ordered pairs which do not have any six so when x is 0 px is equal to 25 over 36. Now when x is 1 in the sample space there are 10 ordered pairs which have only one six so when x is 1 px is 10 over 36. Now when x is 2 there is only one pair which have two sixes so when x is 2 probability of x is 1 over 36 so according to our key idea the mean of a random variable x which is also called the expectation of x is equal to sigma xi pi i varying from 1 to 10 so this is equal to 0 into 25 over 36 plus 1 into 10 over 36 plus 2 into 1 over 36 and this is again equal to 0 plus 5 over 18 plus 1 over 18 and this is again equal to 6 over 18 which is equal to 1 over 3 so when two dies are thrown simultaneously if x denotes the number of sixes then the expectation of x is 1 over 3 so this is the answer for the above question this completes our session I hope the solution is clear to you bye and have a nice day.