As a kind of tent-shaped structure that is characterized by its flexibility DeMar DeRozan USA Jersey , membrane structure has been frequently appearing in the city square, large park and many street spots since the beginning of 21st century, immediately attracting much attention from the public with its richness in shapes and flowing curves.
Combining the thin-film material of high-intensity flexibility and stretched system and forming a structure of a certain degree of rigidity, membrane structure is a high-tech engineering plastics which integrates architecture, structural mechanics DeAndre Jordan USA Jersey , fine chemical engineering and material science. It is widely used in those facilities of many fields such as sports and fitness, culture and entertainment and traffic and transportation, and the buildings of agriculture and industry and some landmarks.
Such membrane materials as PTFE and PVC are mostly used in the production of membrane structures. Ptfe film refers to a kind of composite material that is produced by applying Teflon resin onto the base cloth weaved with hairline fiberglass and is characterized by its high strength, well durability, fire and inflaming proof David Robinson USA Jersey , long service life, high light-admitting quality and less heat-absorption endowed by its 73% of solar reflectivity. Membrane material of PVC is another kind of composite material that is made by applying PVC resin onto the base cloth of polyester fiber. The membrane of PVC, whose service life is usually between 7 to 15 years, is inferior to that of Ptfe film on the intensity and fire-proof capacity.
In addition to some traditional requirements in functions, membrane structures possess the following salient advantages:
1. Economy. The cost of membrane structure is one third to a half of that of traditional structure. As the membrane structure is of the capacity in light transmission Clyde Drexler USA Jersey , the intensity and time of illumination will be largely reduced in daytime to save much energy, and there will be splendid scenery that is formed by transmission in night, which is a fine advertisement.
2. Short construction period. Compared with those traditional architectures, the construction project of membrane structures can at least shorten the construction period to half, and complete in two months while not affecting other projects in progress at the same period.
3. Large span. The membrane material used in membrane structures is light enough to overcome the difficulties that the traditional structures encounter in large-span (without support) architectures. In addition Christian Laettner USA Jersey , the widely visual space without any barrier that the membrane material creates well displays the effectively added space in usage.
4. It possesses the unique appearance, and represents the attractive visual effects of variously changeable aspects. Now its application has been spread from the architectures of gym and exhibition to those of houses and scenery and many other PTFE rod.
5. Self-cleanness: since the membrane material of protective coating is applied in the membrane structures, it is no wonder that they are can be washed by the rainfall falling onto the surface of architecture, whose service life is ensured in the same way.
Dentist - Know When To Go Health Articles | September 29, 2010 If you are leery of going to the dentist regularly Chris Paul USA Jersey , you should find out why it is important that you visit at least annually. Knowing when to go to the dental office near you is important for your oral health.
Some people do not see a need to go to the dentist regularly, which may cause them to only go when they are experiencing a painful problem. However, you should know that it is recommended that you go as a matter of routine, not just when you have a toothache. In fact, there are a few different reasons to head to the dentist that you should be aware of.
Most dentists recommend that you get a checkup every six months to a year Chris Mullin USA Jersey , though many adults do not abide by this schedule. Going to this kind of practitioner regularly will ensure that you avoid a sudden painful ache since any issues can usually be caught early on. The advantage of this, aside from having less pain to deal with, is that catching problems early usually means a smaller bill since major issues are usually the most expensive ones to fix.
Of course, you should get a cleaning when you go to your routine checkup. This practice can remove built up plaque from your gums, ensuring that your teeth are as healthy and clean as possible. While many people dread making this appointment Charles Barkley USA Jersey , they usually feel good at the end of it since they know their mouth is much cleaner than when they went in. While the appointment itself may not be fun, you should get excited about the results.
Unfortunately, many adults only go to the dentist when they are in pain, so this is one of the most common reasons to go. If you have sudden tooth pain that lasts for days, it is likely time to go in to find out what is wrong. You may need a filling or to have a tooth extracted Carmelo Anthony USA Jersey , or you may just need some pain medication while wisdom teeth come in. It may be scary to go in since you are probably worried about the expenses and treatments involved, but getting rid of the pain once and for all is worth it. Additionally, you may find that the problem is not as bad as you think it will be.