05/24/2011

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Alexander Von Humboldt As a phenomenon that has accompanied mankind throughout its life, significant efforts have been made to understand them and everything has been done searched and searched, yet minimize their effects. The first explanations were associated with divinity and specifically to the discomfort of that, with the actions of men in consequence how to treat this event was not entirely technical. We know that earthquakes have historically caused, apart from the casualties, if they can leave out, destruction of their temples and most emblematic buildings which has led to doubts about the power of their gods, especially the effectiveness of the sacrifices or other forms of "shoveling" your anger, this is the case of the Colossus of Rhodes and also in some way the lighthouse of Alexandria (two of the wonders of the ancient world) Alexander Von Humboldt is the first to give a good approximation correspondent the origin of these phenomena, linking faults and earthquakes. As postulated a relationship between earthquakes and volcanoes deduction which came after a review of the Guagua Pichincha in the City of Quito (Ecuador), among other places saying quote: "Active volcanoes are as safety valves for the neighboring regions." The objectives of earthquake resistant design are very specific and relate to: Resist minor earthquakes without damage. Resist moderate earthquakes considering minor structural damage. To resist severe earthquakes with the possibility of major structural damage, preventing the collapse of the building. Generally there are many considerations regarding who can determine that a compliance with these conditions of safety, being grouped in soil type, symmetry of design, in which the upper floors are as light as possible, the need for proper selection and quantity quality of materials especially iron, which must be ductile, some steelworks rods recosen to obtain this condition, avoiding the embrittlement due to the...
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Vibration Reducing Soundproofing car. For what it's needed. Soundproofing car sometimes called soundproofing - a complex of measures to improve acoustic comfort in the cabin. Modern materials allow to achieve good Results for soundproofing the car. The important role played by the correct application of noise and vibration materials. It is believed that insulation is an option that more needed to domestic cars, but it is not. Any noise isolation can be divided into several types which use the following: noise vibration and skripoizoliruyuschie. Vibration isolation - can reduce the noise caused by vibration of the various units of automobiles. Vibration isolation is also necessary to install high-quality speaker system to remove unnecessary sounds and resonances of the elements that prevent the car listening to music. To do this, it is best to use the Vibration Reducing self-adhesive sheet material consisting of mastic adhesive layer on the rubber base and aluminum foil. - is the removal of the sounds associated with the "festivities" car body and its individual elements in the motion. As a result, "sound" plastic parts car - dash trim car doors, etc. To remove these sounds requires painstaking work on sizing the joints of plastic parts with a special material resembling foam on the adhesive base. Commonly used porous sound-absorbing special materials. Noise isolation - a distinctive feature of these materials is that they do not absorb moisture and have a "closed pore" what and provides isolation. Such materials are usually processed wheel arches compartment floor to wall to the engine compartment. Under the hood where temperature is usually quite high, using special non-combustible materials with a special heat-reflecting layer. For a layer of sound insulation is applied Isolon teip Isolon teip 3004 and 3008. Isolon grade pes - physically crosslinked penopoelitilen. Due to radiation crosslinking molecular structure of...

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