Developers Club geek daily blog

Free training for students for the end of April

3 years, 7 months ago


Since 2008 we carry out free IT courses for students. MAI and MIITA began with profile seminars for MGTU of Bauman. Now the training program is open for any with the student ID card in hands.

Each seminar? it is the capacious story about technology and the main steps in it, frequent errors. The practician having wide experience of work (and at least some finished projects) in this sphere tells. Task? to remove input threshold in technology. At the end the piece of paper which, perhaps, becomes good achivka for the employer or the teacher is given (but it has no legal value, if that).

Here the next:
  • April 22? Development: than it is possible to surprise the world?
  • April 23? Big Data. What to do with megavolume?
  • April 24? Modern TsOD: gradually about everything.
  • April 27? Cloud technologies. At new heights.
  • April 28? Creation of networks: from idea to implementation.
  • April 29? Modern robotics: as the fantasy becomes reality.
  • April 30? In step from success: practical guidance on job search for students.

Read more »


Than the boiler room in Central Akhtuba differs from data-center power node

3 years, 7 months ago

Coal boiler room (example, 4000 rubles for Gcal)


Normal boiler room (example, about 1500 rubles for Gcal)

In March of the 2014th in Central Akhtuba competition on new boiler room has begun. There, suddenly, have called our engineering team though the equipment for data-centers was our main profile always. We have applied all the constructions TSODOV received in years skills and have won competition. On August 25 the municipal contract has been signed.

In general, we build the trigeneratsionny power centers in recent years. These are such objects on gas from which the electricity, heat and cold on the next data-center or any important object of infrastructure is given. And now I will tell about in what difference between the settlement of city type on 50 thousand inhabitants and data-center.

Let's begin, perhaps, with that fact that servers, even very powerful, do not steal water. Still, when the data-center falls, the main thing do not show on the TV together with Shoygu. And still water in pipes on all city does not stop and does not freeze, breaking off nodes.

Read more »


RapidMiner – Data Mining and BigData at your place, quickly and without preparation (almost)

3 years, 7 months ago


While marketing specialists are covered with BigData and run in such type at press conferences, I just suggest to download the free tool with test data sets, templates of processes and to begin to work.

Downloading, installation and receipt of the first results — minutes 20 at most.

I speak about RapidMiner — the opensorsny environment which at all the free of charge did not turn sour "soils" commercial competitors. However, at once I will tell that developers all the same sell it, and in opensors give only penultimate versions. Houses can be tried because there are in general free assemblies with all logic with only two restrictions — the maximum volume of the used memory of 1 GB and work only with normal files (csv, xls, etc.) as data source. Naturally, in small business it is not a problem too.

Read more »


Green power for base stations and to only 2 KW — three years' experience with wind-driven generators, solar generation + geoprobe

3 years, 7 months ago

Mounting of the wind generator


The wind generator, the container with batteries, geoprobe and base station in Samara

About 3 years ago we have begun experiment on providing base stations with energy from sources on site. Already in half a year it became clear that geoprobe for base stations — very useful thing in midland, solar batteries of Zelenograd plant remarkably prove to be, but the main problem — not in obtaining energy, and in its conversions and accumulation.

I will tell about the broken wind-driven generators and that we have understood in three years, and unique geoprobe for cooling of rack with communication equipment.

Read more »


Not absolutely known solutions on protection of IT infrastructure of business

3 years, 7 months ago


Classical approach of the Russian business — is today installation of firewall, then after the first attempts of the directed attacks — systems of protection against invasions. Further to sleep peacefully. In practice it gives the good protection level only against skriptkidda, at any more or less serious threat (for example, from competitors or the attack from ill-wishers or directed to attack from foreign group of promshiponazh) needs something additional, in addition to classical means.

I already wrote about profile of the standard directed attack to the Russian civil enterprise. Now I will tell how protection strategy in general in our country, in particular, in connection with shift of vectors of attacks on 0-day and the implementations of static code analyzers connected with it directly in IDE changes in recent years.

Plus couple of examples on the sweet — you learn that can be created in the network which is completely isolated from the Internet and on perimeter of bank.

Read more »


3D - systems — selection of excellent ways to mess up with content

3 years, 8 months ago


The 3D - systems are used for visualization of engineering solutions (like training of operators of the NPP, monitoring in the same place), in oil and gas geological exploration (there are most expensive immersion systems), for demonstration of different goods (from custom designs of salons of cars to type of laying of goods in trucks), for training of repairmen (it is possible to disassemble the Boeing engine), in medicine for training, and also for working off of evacuations and emergency on different responsible objects.

The main problem of preparation of content — it that in the market is a lot of the companies which speak "We are able to do it", but have no iron upon. Without two-week testing, without clear understanding of restrictions of iron and simply knowledge special grabel — it not "we are able and we can", and "we want, but it will not turn out".

Read more »


— that you have passed the report with Integrated Systems Europe in technologies if have not got on ISE-2015

3 years, 8 months ago

The Interaktivy bar counter reacts to glasses and is able to show advertizing, for example, suggests to try something new

ISE is one of the world's largest exhibitions for AV specialists and system integrators. Here show new iron like screens, projectors, LED solutions and different other means of display and their components. ISE passes in the corresponding strange atmosphere of Amsterdam. There comes all Europe, plus it is a lot of our compatriots. For comparison – on same last American "Infokom" of Russians was about couple of tens, but not 2-3 hundred.

Well, go I will show that was remembered most of all in particular, the laser projectors which have recently left in release. Well and the TV which costs as the apartment.

Read more »


"Heavy" applied software: everyday life of development and deployment

3 years, 8 months ago


I will tell about features of "heavy" commercial applied software for the large companies and I will give couple of examples from Russia.

Come, I will show hell of the perfectionist.

Read more »


That the cool call center by IT part and what in general there are options has to be able

3 years, 8 months ago


About five-six years ago the autentifiktion on a voice in call center seemed a fantasy. Voice recognition in search of a key word to understand that there are before and after pauses more long 3 seconds was not less fantastic. Today it quite working solutions.

Ten years ago the system of automatic creation of schedules was in wonder. And today banks save just on installation of such system and still a lot of money – that encourage the best operators not with awards, and diagrams convenient to them.

Three years ago very few people considered addresses on paper (credit requests, for example), letters, normal calls, messages to twitter and posts to Facebook as the identical entities which are simply arriving on attendant workstation for the answer.

Read more »


All-Russian population census: as your data tossitsya

3 years, 9 months ago


I work with recognition and data handling of population censuses and agricultural censuses since two-thousand year. It is that case when you write more than a year software which has to fulfill once, but without errors.

Why? In the All-Russian population census in 2010 500 thousand people and 10 thousand more IT users participated in all territorial subjects of the Russian Federation. The scanner takes away 150 sheets a minute. Recognition in real time with approximately same speed. Multiply by the number of scanners over the country – and receive a data stream where any bug pulls down work of a huge number of people at once.

And the second moment – together with scientific research institute of Statistics we conduct research work on algorithms of data recovery.

Read more »