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General

Ceramic Heaters

square. but in most cases do not meet safety, have a small share of work, a large mass and size, and energy-intensive inferior in almost all respects eloktronagrevateley with other insulators. If we consider that while they are still high cost, it makes them uncompetitive – see 'Ceramic Heaters – yesterday, industrial heating. " Electric heaters with ceramic insulators in the form of "dressing" spiraling to TSEs transfer heat heated object by conduction, have the maximum density heat flux of 15 W / cm. square.

but generally used for small objects, as in "daubing" spiraling to TSEs large diameter dramatically increases their size, weight and increasing energy consumption. Cost elektrogagrevateley with such great insulators. Electric heaters with insulators of mica materials transfer heat heated object by conduction, have the maximum density of the heat flow of up to 8,5 W / cm. square., of unlimited size of the object being heated, have high efficiency and low power consumption, long life operation and high reliability in the desired range of operating temperatures, can have high Ingress protection from the environment, small thickness, mass and thermal inertia, it is cheaper than electric heaters with ceramic insulators. However, the technical standard of electrical heaters is strongly dependent on the level of design and manufacturing technology. This is confirmed by the figures mentioned in the 'Map of the technical level. " As can be seen from the table, the maximum heat flux density in Depending on the supplier, ranging from 4 to below 8.5 W / cm.

Categories
General

Transmission of Knowledge

The volume of assimilated per unit time information has increased many times. But not quality. Mediator in the person of the teacher was almost completely excluded. And without him was not only difficult to estimate successful assimilation of the material, but also the ability to apply it in practice. For a complete, high-quality transmission of knowledge requires a personal touch. Therefore, there was the problem: to make education as interactive, in this case, without prompting from the virtual space, not to lose benefits already achieved in the speed, accessibility and convenience. Such a teacher returns became possible with the advent of technologies and tools for videovstrech-online and collaborate in real time via the Internet. Practical options for using such services are numerous: from distance learning in educational institutions to the organization intra-system of coaching.

Presentations, training, sales-meetings, meetings – all without leaving your desk. At a convenient time for everyone. Technology allows one or more speakers to reach an audience of a few people to several thousand. Where are all the participants – has not the slightest value. Importantly – access to the Internet.

In addition, as a rule, are recorded events. In fact, at the disposal of the customer is finished media products. Which it can use its discretion in the future: how to presentation material, as a training course. This tool is available to even the most insignificant market players. His service is much cheaper than traditional distance education system. The effectiveness of lecturers and selected material is visible at once. If the majority of participants found the lecture boring and unprofitable, then they always have the opportunity to immediately make this public. Accordingly, no need to wait until the whole course in order to assess the professionalism of invited experts. You can respond in a timely manner and adjust the educational process. In addition, the interactivity of the educational process significantly improves its quality. Students can ask additional questions to clarify what is not understood. Acquire knowledge on personal example of teachers. That is all very close to the living. *** In fact, the latest technology today to recreate the "classic" educational process. Virtual audience – with the teacher transmitting knowledge to personal example, with the ability to ask questions, check with the mechanism of absorption material. Everything, as in life, but with the advantages of virtual space. Objective of e-learning has all the advantages. But there is a broad target audience. People "do not have time" for progress. Their thinking is analog, not digital, not a network. But if trends continue, full-scale transition to digital – a question of time.