Requirements to it were dictated more by practical considerations – 'bandwidth' of sunlight and maximum protection shelter from the cold. As technology and communications have moved away from the windows of their former counterparts, not only on the material. Requirements for them has increased dramatically – here and durability, and good ventilation properties, and the exclusion of the draft, a good sound and heat insulation, easy to use and maintain. Besides structural and operational features, to the window and assigned an aesthetic function – it must be in harmony with the whole room, make color and style unity. Suffice it to say that the cornerstone of a wooden windows – glass – for its diversity in the market has reached a range which would not even dream of our ancestors. In insulating glass units are now used various types of glass: colorless polished, tinted, patterned, tempered, laminated glass (laminated), mirror, bulletproof. There was a special energy-efficient K-glass, which, thanks to a special coating provides a smooth passage into the room short-wave sunlight, but delays the exit from her long-wave heat radiation. This heat saving property could not be more true for the Russian winters.
The choice of window designs and rich – and single- Two masts, all colors, shapes and sizes. They vary in design – opened in different ways by different types of wings – a simple, sliding, povortnye, swing-out. There were windows – Sealed design for high levels of thermal insulation and noise absorption. They do not freeze and do not mist over even at temperatures up to – 45 degrees Celsius.
Modern business requires automation of accounting and inventory control, invoicing and receipt, send messages electronically to suppliers and customers. To accomplish all of the above functions require a connection between the computers of staff, need a local area network (LAN). In a small office install a server, workstations, network printers, modems, internal PBX. In office local networks as the transmission medium used unshielded twisted pair category 5 (UTP). Approaches to the development of cable systems.
The compound of the above, the local network does not usually cause problems, so Many firms are trying to save by implementing a local network by laying its expertise, not really protrude into the intricacies of installation and configuration of LANs. In the geographical center of the hub office is established for the necessary number of ports (8, 16, 24). From him hold the cables to the workstations, sometimes without power outlets directly to the network card on your computer. The cable is usually laid in a box, but sometimes that is bad, the cable is laid along walls or attached to the plinth means at hand and becomes subject to the risk of being broken down staff or legs of chairs. No less important is telephone communications. For laying telephone lines are usually invited professionals who are paving and line of communication, which will eventually dot the walls of the likeness of a web. It is better to lay phone lines to those places where at the moment must be phones.
As a general rule, telephone lines laid before the local network. Obtain predictable results. Consider a rational approach and its benefits. A rational approach involves planning a cable system, taking into account the requirements and standards structured cabling systems (SCS). At every workplace network established network and a telephone socket, socket set every 5-10 m2; active network (hub or switch) and passive jumper (patch panel), the equipment is installed in one place – closet. PBX is better to put in the control cabinet or close to it, it will reduce the length of the telephone lines. For more specific information, check out Pete Cashmore. No the need for laying telephone lines with separate cables. It is better to do this through the same cable used to connect computers to the network, since UTP cable category 5 contains 4 twisted pairs, two for signaling network, two as a telephone. When adding new users will not need to lay new cables. Take a spare telephone socket and connect an additional user to network using the same unused pairs in the cable. If you need to lay new cable, it is still at the same time we have telephone and LAN lines. I should add that the implementation of SCS is to follow the recommendations standards, cabling instruct experienced professionals who have undergone special training. Technical solutions based on structuring the cable system – the need for the day. Let you in laying the JCB pay a little more, but believe me, you will save much later. The life cycle of high-quality cable system several times over the life cycle of computer equipment.
High rates of the national project "Education" and the growth of consumption of the information required by educational institutions and require the development of the backbone transport network faster pace. The company "RTComm", part of the telecommunications holding "Synterra", was defined in 2007 by the Executive of the state contract for the national project "Education", under which 52 940 educational institutions in the country connected to the Internet. Performing this task in the Volga Federal District provides for construction of fiber-optic communication lines that pass through the territory of the Nizhny Novgorod region. One of these lines is FOCL "Nizhny Novgorod – Bor", which provides for the construction of a hidden passage through p. Volga. Tender for execution of the object was won trust "Svyazstroy-4" – the leading and largest company in the construction of communication facilities in the Volga Federal District. Specialists of JSC "Svyazstroy-4" were identified and agreed with the customer place the transition cable FOCL "Nizhny Novgorod – Bor" in p. Volga at 909.4 km (Atlas UGSS eq RF).
Coordinates lie in the transition area rowing canal in Nizhny Novgorod. The distance between the two sides of the natural channel of the Volga River in this area about 1400 meters (including approximately 100 m – width of the island Caves Sands), and with the artificial rowing canal overall width of a water hazard was 1750 m. The Professionals "Svyazstroy-4", which were made by developers and implementers of the project, it was clear that, given the performance technology company GNB Ditch Witch , available in the trust, so essential obstacle can be overcome only by a few steps.
Technology is constantly improving, the potential of technology is so high that it allows you to pour not only metals and alloys, but also composites, which have increased by several times (on Compared with simple alloys) of office properties, for example, tribological. These new alloy materials and technologies give significant reduction in metal consumption and production costs, which focuses on modern engineering. The practice of organized industries shows that the low material costs (consumption per 1 ton of suitable casting consists of four model-forming materials: quartz sand – 50 kg., antipenetration coverage – 25 kg., Styrofoam – 6 kg. and polyethylene film – 10 meters, does not apply to sand binder) save at least $ 100 per ton of casting, casting and placement of the entire volume of the container reduces consumption of the metal mixture at 150 … 250 lbs., electricity is 100 … 150 kW. am casting technology for penomodelyam has the following technical and economic indicators, compares favorably to the traditional sand casting flask form: coefficient of metal utilization 80-98% 65-80% yield increase in the mechanical properties of the material casts a 10-15% reduction in weight of castings in the 15-25% reduction in consumption of charge materials and alloys by 15-25% reduction in consumption molding and core materials at 80 -90% reduction in capital costs, decrease time 2-2.5 manufacturing facilities, labor costs decrease 3.4 times by 30-50% Effort finishing operations is reduced by 10 …
20% for single and 40 … 60 % at mass production. Particularly large savings in molding complex castings from the wear-resistant steel (screws for brick-making machines, beat, hammer mills and details), since greatly reduced the cost of machining.