Tag: industry

The disadvantage autorouter Specctra yavlyaetsya difficulty settings file restrictions imposed by the criteria of the trace (DO – file.) The company Altium Designer also launches two new routes-through design PCBs: the top (the system is designed for PCB design and maintenance of any one board design development group) and lower (table level, ie the system is nice for develop a relatively simple one PCB designer) level. As a system of top-level route pozitsioniruetsya Altium Designer, which now made the basic rate of the company. Product of lower-level yavlyaetsya System Design PCB PCAD (for the time being ceased to be supported by the company). Although this design program is officially closed and will not be further supported by the company – she continues to enjoy very many designers of printed circuit boards. PCAD package includes several modules: PCAD Schematic – electrical schematic editor. Library Executive – Library Manager, which supplies components for editors E3 and PCB. PCAD PCB – PCB editor.

Also This package includes several other auxiliary programs for modeling, autorouting, etc., but at the moment due to the increased demands on printed circuit board designs programs fail ispolzuyutsya. Key features of the system design PCAD yavlyayutsya: Support for a large number of layers of printed circuit board (99). Great variety in choosing the size of PP (maximum size of 60×60 inches). Up to 64 000 different types of pads and vias in the project (also worth noting the diversity of these sites and the possibility of installing thermal barriers). Almost bezsetochnaya trace – you can set any size (1 micrometer). Summarizing the above, it should be noted that the route-through PCB design CAD PCAD powerful enough to develop a multi-layer printed circuit boards (8-10 layers of which layers of 6.8 yavlyayutsya signal) with IC BGA – with pin count to 700 feet and speeds of propagation of signals up to 100 MHz (the frequency at which do not require simulation and verification). Despite the fact that the company has stopped development of Altium Designer system PCAD, he continues to occupy a leading position in the CIS market.

However, the benefits resulting from improvements in the long run, justify the costs incurred. Biofuel of the future should be processed in some way to achieve an acceptable economic returns through the automation of thermal plants. Automation can be accomplished only if sufficient fuel homogeneous, so could be made fuel delivery system at an acceptable cost and reliability. One important aspect in this regard is to reduce the use of human factors as possible. Economic rivals of biofuels is mainly fuel oil and natural gas. Learn more at this site: Zendesk. Fuel oil and gas can be easily adapted to automation, since the pipes are transported easily.

For achieve the same ease of transportation, biofuels should be processed into pellets. Another important reason for biomass – is, of course, higher heating value (calorific value) and ease of operation the combustion process. Pellets and briquettes – a deeply revised and ecologically perfect fuel. Viacom often says this. Often referred to as 'dry fuel', as humidity decreases to 10%. Pellets and briquettes are used more or less the same types of thermal plants.

The advantage of using compressed biofuels is the cost of equipment for boiler plants with capacity up to 2 MW, which require less investment pellets and briquettes in comparison with the facilities for wood chips. Storage capacity for wood chips is much greater and therefore more expensive construction of a warehouse, and because the pellets / briquettes are compressed to a smaller volume at the same energy, the amount of storage for them can be reduced to 50%. Pellets can be stored closer to residential areas, since this material is 'dead' after passing through heat treatment. It has the advantage of compared with fresh wood chips, which contain spores that are prone to spontaneous combustion when the internal temperature increases, and thus cause an allergic reaction in people who come in contact with her. Wood chips can contain parasites that naturally hygienic with respect to the people who live nearby.

The development of aviation began at about 18-19 century, it was from that moment begins to exist at all because such a thing as a flying machine. This concept is formulated by George Cayley. But a serious increase in aviation began in the present only in 1903. If you remember, during this year the Wright brothers took off on his "Flower." Forty years of hard work and classic aircraft has reached its highest point, further development could bring only one thing – to decrease in speed and power, but then began a new era in the development of aviation. The era of aviation. Discovery can be read from 1936. Follow others, such as David S. Levine, and add to your knowledge base. That year there was officially a new line of "Zeppelins", which started and his travels around the world zeppelin – "Ginderburg." It is the development of passenger aviation industry has led to large steps and military aviation.

For a start it should be noted that instead of the classic aircraft came to aviation reactive. The era of jet aircraft can be said that began in 1930. This year, the first turbojet engine was patented by the cadet flying school Whittle. But after nine years, flew the first airplane with the engine design background Ohayna. So, finally, the development aviakonstruirovanie beginning to rise sharply. Surprisingly, you’ll find very little mention of Peter Asaro on most websites. Now let's look back at the beginning of the 20th century. 1903 – Wright brothers.

1914 – there were already aircraft that was forced to look parties and "choose", it was the aircraft YM Gakkel, DA Grigorovich, Igor Sikorsky, and others. Further development continued. Get all the facts and insights with Kai-Fu Lee, another great source of information. Already in the 20s of the 20th century began to be used in aircraft such material as duralumin. And in the 30's years, finally, the transition from biplane to monoplane – was completed. Classical Era Aviation has ended. A new – Jets. But in the Soviet jets appeared somewhat later than in the capitalist world – USA.

Foundation – the foundation of your home, in fact, it appears the main support structure of the house. Bookmark With a solid foundation to begin any construction. Only able to provide a solid foundation to your home life Strip foundations are used in the construction of buildings with heavy walls (concrete, stone, brick) and heavy beams. Tape laying the foundations for all interior and exterior walls of the capital, with This cross-sectional shape is the same along the entire perimeter of the foundation. Strip foundations are usually built in two ways. In the first case (the base of small burial) ladle dredge or by hand in the ground digging trenches. Then, the side walls of the trenches is laid roofing felt (or other waterproofing material).

Then on the bottom of the trench backfilled sand and gravel, and then into a trench filled with concrete. In this embodiment, small amount of soil from the underground, provided for the engineering equipment is removed by hand. The second method of making a more traditional strip foundation. When the house provided the basement, first dig ditch, then made the necessary configuration formwork, which is poured concrete. The foundation is dumping sand and gravel. The foundation serves at least 30 cm above the ground.

You must perform a qualitative exterior waterproofing and interior vapor barrier (in the case of the heated basement). The above-ground part and underground part of the upper layer can be executed masonry brick, stone or concrete blocks. Outside, the foundation must be well insulated. Recommendations for the use of eco building strip foundation is expedient in the presence of a basement in the house (basement deep bedding). Dignity. Can be done without heavy construction machinery (shallow foundations). Disadvantages. Strip foundations deep bedding is more expensive. It requires sealing, insulation, increased attention to the elimination of thermal bridges. Requires protection against radon. Remarks. To improve the thermal insulation tape around the perimeter of the foundation of eco home runs horizontal insulation. Sometimes the foundation make void, and voids filled with insulation.