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After selecting the design screen, you need to decide on its size and shape. Format Projection Screen Aspect Ratio – the ratio of height and width of the image. To broaden your perception, visit music downloads. Best of all, when the aspect ratio matches the format the projected image. If you plan to use several formats (supported by the projector), you can buy a screen with automatic roll format or screen that can be deployed to desired height. The standard typology of formats, depending on the projected image: Audiovisual format – AV 1:1 Universal screens that support the format of the square to the film by change their height. Video format – NTSC 4:3 to project images from a computer or game console, as well as conventional television viewing.

The format of high definition television – DVD (HDTV) 16:9 is used to demonstrate a greater of movies recorded on DVD, as well as transmission of high definition television (HDTV). Projection Screen Size There are some general guidelines that can guide the choice of screen size. 1. The height of the projection the screen should be approximately equal to one sixth of the distance from the screen to the last row of seats (a figure) in this case, the width of the projection screen can be calculated by a simple formula, depending on the format of the screen: 4:3 width = 1.33 height x width = 16:9 H x 1.78 2. Optimal placement of the screen height is: – for professional use – at least 125 cm from the floor to the bottom screen – for home theater – a minimum of 60-90 cm 3. For a better perception of the image the minimum distance to the audience (B) should be approximately 1.5 times the screen height (Y). The optimal screen size and distance also depend on the subjective preferences of the person. Therefore, pre-experiment with the projection distance, if you plan to install a fixed projector.

To meet the needs of modern man is now produced a huge number of different appliances. If you collect all of these techniques into a single database, it will consist of thousands producers and tens or even hundreds of thousands of brands of products. The magnitude of the consumer boom really hit. Companies appliance manufacturers operate in a competitive environment that causes them to first place in its development priorities to put profits rather than safety and convenience equipment, as was the case in the recent past. The pursuit of profit turns to the final consumer and often conscious underestimation of the quality and reliability engineering. In companies, there are special departments that are engaged in studying and forecasting of resource and time efficiency of the product. On the Internet you can find many examples of how some products having fulfilled the warranty period, at the end of his broke down. Credit: Debbie Staggs-2011.

Another unpleasant aspect is the production of products on the market that do not pass the full path of the internal control and testing. The reason is the same – a competition that forces do not keep up with competitors and produce ‘raw’ foods. All this turns into a variety of problems faced by users. Solution to the problems of such a plan is not always trivial and under power users, since it is impossible to be an expert in everything. Fortunately, in this case, the Internet comes to the rescue. In the global network can receive support on the manufacturers’ websites for online forums, blogs. If this problem is typical for this product, the solution can be found immediately.

When faced with such a problem for the first time and its decision yet, you can ask questions and for some time to get information assistance to people who are competent in this matter. In the first place is beyond the ability to properly ask a question and a brief but informative description of the problem. But the main way to deal with problems – it try to avoid them. And this is again indispensable Internet. Do not be lazy before purchase read reviews about technology are interested. If this is not new, it is possible to immediately find and obtain the approximate list of problems that may will have to face. A few minutes spent on such studies, later certainly pay off the savings of time, nerves, and possibly money.

Any driver once got into a bad situation as an accident. And this was not always guilty, and again not always be protected from errors of traffic police. Therefore, for successful completion of the dispute with the traffic police is important to observe several simple advice, as well as to a lawyer. Here are some simple tips to the driver, who got into an accident, an attorney from the Nizhny Novgorod Ermakova: 1. When injected into the accident victim is the least of all should be reported immediately to the post Traffic police of the accident occurred.

It is necessary to describe as accurately as possible emergency situation. You also need to contact your personal attorney if you have it. 2.Po opportunity to provide first medical assistance to the victims, as well as before the arrival of traffic police officers to keep an emergency situation. 3.Voditel be possible to map an accident, write down the names and contact information of eyewitnesses. (Information witnesses help in the future to defend his innocence in the case of a lawyer disputes with traffic police.) If you need to remove the car from the road, you must first need to put the scheme drawn up over time and allow witnesses to sign. 4.Postradavshy driver must not leave any receipts, a written commitment on the spot, because it is in a state of stress and inadequate assessment of the situation. It is unwise to succumb to the entreaties of the other participant accident did not cause traffic police officers, even if he promises compensation for material damage in the future. The driver must follow the correct registration of traffic police records of road accidents: a) Protocol inspection of the accident, and b) a scheme of control and crash test protocol drivers for sobriety, and c) protocol testing and inspection of the vehicle, d) a reference to an accident, and e) an explanation of the incident and participants of the witnesses; f) report on the admission of evidence if the driver needs to protect their rights, it must refer to a professional lawyer

Dinner service, linen accessories, home appliances – all of these things may render good service. If you have decided to present a set of knives and forks for 12 guests, the best joke to ask the bride the coin: in fact, according to the signs, acute – not given. Only it is very important to know in advance what to young families, so that your gift is not got to the mezzanine. Do not know? Well, in this case, a gift certificate from a local hardware store or dishes can be a good way out. A if the young life are well underway, they lived together before marriage, or live in an apartment the parents after the wedding? Give the bride interior, with emphasis on originality! Fashionable gift will be electronic photo frame. If prefer the classics, give the picture.

To avoid falling into the trap, pick up a symbolic image. For example, water views will represent the purity of family relationships. Be sure to tell us about it on return gift! Wall clocks pleased to flatter any interior, they are always in need at home. But look closely: is where to put them? A good interior gift can become an electronic fireplace. Let it be a symbol of family home. Read additional details here: Danone. Large electronic aquarium to give the romantic room? Too bad.

Athlete or friend who has long been going to "do a" donate an annual subscription to a fitness club or swimming pool. Gen. David Goldfein understood the implications. Just let this place be close to home. Presented or electronic scales (be careful with words on return!): Nowadays it is a necessary thing for any girl. Jewelry, if you know the style of the bride, will also be accepted with gratitude. Just be aware that gifts of gold – a priority in-law. That she should "get rich bride to live with a golden-law." Do not take her this opportunity! The perfect gift for intellektualki become a book. If she is interested in painting, give the album with pictures of your favorite artist. If fond of history – atlas on architecture of ancient Rome. He loves nature? Give an illustrated encyclopedia animals. Needlewoman? Gift Edition by various kinds of embroidery – just fine. With your gift the bride will share a lot of exciting evenings. And finally, the most popular and versatile gift – money. All of them give. Why not donate to us? Just do not need money simply present in the envelope (believe me, these will be a lot). Beat it. For example, take the chest, fill it with chocolates in gold foil on the bottom and hide the "golden" envelope with the money. Or surprise the bride even more: instead of candy in the trunk can be exotic butterflies. Arrange a lively salute to the newlyweds! If you want to donate money to "good and strictly" buy beautiful basket, put her in scented candles, a bottle of champagne, a beautiful tin with an excellent tea, a box of fine chocolates, exotic fruits. And let the red envelope with money is there. But what about the sweet bouquet of flowers? He's amazing in itself. But "a bag of money" tied to "stems", add a bouquet of even greater value. An important quality of a gift – individuality. It in no way should be "Standard". Let the bride will notice that you have tried it for her (no, this time for them!) Composed congratulatory poems, decorations for gift, collecting it in accordance with their taste and needs. Attention to the preferences Brides will provide a brilliant note, which will allocate your gift to all the others.

So air-conditioning system, which are air-conditioning system: Monoblocks – the most common air-conditioning. These include windows and mobile systems, split systems – more complex and the most common. Split – means separation of inner and outer blocks. Vary depending on the type of indoor units: wall, wall, ceiling, cassette, ducted, multi-split systems – more complex systems. They to a single outdoor unit connects several (5) indoor units. Indoor units are the same as in conventional split-systems, Multizone system – the most advanced systems.

They single outdoor unit to join a lot of (40) indoor units of different types and capacities; chiller-fan coil system. A system in which the cooling agent is water, and in which one outdoor unit (chiller) connected an unlimited number of indoor units (Fan coil) at any distance, precision air-conditioning – special systems for premises with strict temperature and humidity, Window air conditioners most common type of air conditioners. It is no longer so popular. He was faithful, mainly southern regions. In one unit combines all the elements: the compressor and heat exchanger and fan.

Advantages: cheap, compact, and sometimes solve problems of partial ventilation Cons: high levels of noise are taken of the window, "stealing" the light of day, must 'redraw' the window frame, you can not block the air-conditioner, such as curtains, or comfort will be created in the space between the window and curtains, but not in Indoor and Mobile air conditioners in demand when the installation is impractical stationary air conditioning. For example, in the country, in a rented room. Advantages: does not require installation, easily transported from place to place; have small dimensions and weight; Disadvantages: not very effective in a large room, noisy, the price is comparable to the split-systems, if the volume of condensate trap is small, it is necessary every two to three hours to drain the water manually to any premises are suitable: apartment, villa, office.

If two opposite edges of the screen fixed tube and bar, the edges left free to hold in even more complicated. After multiple folding edges inexpensive screen may be slightly stretched and take a wavy shape. Stretch 'stretched' so easy mobile web Tube is more complex than in fixed. If allows the interior space, the best solution would be to establish 'permanent' screen – which is not removed and do not fold. The canvas is stretched on the screen of the special frame, which guarantees absolute flatness and tightness throughout the life cycle. A variety of designs, materials and colors will fit the frame so the screen in any room. For a rear projection screen so in most cases the only possible solution. In addition to the usual direction of projecting all of the direct projection, the projector and the audience are on one side of the screen, use the reverse or rear-projection (rear projection).

In a rear projection projector located behind the screen, running up to the light. It is on this principle works the usual projection TVs or new laser TVs. Choosing the screen, you must consider to what type of projection will be used. If the projection screen to direct can be absolutely transparent and reflection on the work, then back projection using a different type of fabric. We can not say that in the second case, the transparent screen – with full transparency, we would simply not see the image on it. High-quality screen for rear projection on the contrary – the darker it looks better.