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Safety must be the first consideration when working on roofs or window washing on high-rise buildings Authentic Bobby Evans Jersey , so it is essential to be familiar with fall arrest anchors and window-washing equipment designed to prevent falling. There are many different types of safety equipment available. Some, such as tieback anchors, are attached to the structure as a permanent part of the building. Others, such as roof walks, are intended for temporary use, and are installed only for as long as it takes to complete the project.

Falling is the primary cause of death on construction sites throughout the United States, resulting in dozens of deaths annually. Accidents such as these are responsible for more than 100 Authentic David Long Jersey ,000 injuries on construction jobs every year. To address these issues, the Occupational Safety and Health Administration (OSHA) has established regulations for safety equipment that apply throughout the country. OSHA considers there to be a danger of accidental falls any time a worker is working four feet (1.2 meters) or more off the ground.

In addition to the OSHA regulations, with which compliance is required, recommendations for safe work site standards are made by ANSI (American National Standards Institute). The applicable ANSI recommendations are listed in ANSI Z359.

OSHA recently issued new standards governing fall arrest and window washing equipment. For builders and roofers working on residential properties that information is found under Title 29 Code of Federal Regulations (CFR)1926.501(b)(13). Construction companies must comply with the new rules no later than June 16, 2011. OSHA provides compliance literature, training materials, and webinars (seminars presented on the internet) for small businesses.

There are two approaches to dealing with construction site falling hazards: Either eliminate the hazard or provide appropriate protection. Sometimes eliminating the danger is not an option. The best alternative in such situations is to provide personal protection equipment. Every project and every work site is unique Authentic Darrell Henderson Jersey , so it is imperative to look at every possible means of preventing falls.

Fall arrest anchors or roof anchors are attached permanently to the roof. Anchor posts can be installed on a variety of roof types including wood, concrete, standing seam, membrane, built-up, and metal sheathing. It helps mitigate the danger by rotating in the direction of the fall to absorb and reduce the pull. It is useful for roof maintenance or inspection, especially for HVAC systems Authentic Taylor Rapp Jersey , vent fans, air conditioning, and solar panels; for cleaning skylights; for cleaning rain gutters; and for installing satellite dishes.

Personal protection equipment consists of body belts and full-body harnesses; a body belt is used with a full-body harness. Belts used by telephone or cable linemen may be fixed, semi-floating or free-floating.

The harness or belt is linked to a connecting device which can be a shock-absorbing lanyard, a retractable lifeline, or a tie-back lanyard, that connects the body harness or belt to the fall arrest anchor. It is essential to factor in the possible fall distance in deciding which connector to choose. That decision is determined by the type of work that is being done and the work environment at each individual work site.
?Blossom? is what underground uranium miners called the crystals forming on the tunnel walls. Because the ore was in contact with air inside an underground mine Authentic Cory Littleton Jersey , and as ground water moved slowly against the mine's walls, a visible crust of uranium crystals would precipitate, or blossom along those walls. Making the uranium soluble doesn't require a lot of oxygen and water because oxidization is a natural process. Adding more oxygen to the groundwater found in, and around, a uranium-mineralized orebody is the principle upon which present-day In Situ Leach (ISL) uranium mining is based.


Eons ago, the uranium was soluble and moved, on or below the surface Authentic Robert Woods Jersey , with the ground water. ?In roll front uranium deposits the uranium was transported into the area through the natural groundwater system and precipitated from solution due to some reducing environment,? explained Harry Anthony, Chief Operating Officer of Uranium Energy Corp. Often, the reducing agent was something organic, such as coal, deep-seated oil and gas deposits, or hydrogen sulfide gases. In its reduced form Authentic Jared Goff Jersey , the uranium crystals are insoluble. ?It will precipitate as a coating on the existing sand grains of the sandstone,? added Anthony. ?As more water containing uranium sweeps through this area, and encounters this reducing environment, more uranium is precipitated until there is a sufficient concentration to make it a commercial deposit.?


After the geological team has delineated a company's uranium ?roll front? deposit and determined it is of economic value, the company must turn to its ISL design engineers to complete the 'mining? process. While it takes stellar geologists such as David Miller of Strathmore Minerals, Bill Sheriff of Energy Metals, or William Boberg of UR-Energy to accumulate large Authentic Cooper Kupp Jersey , proven uranium-mineralized holdings, as they have done in Wyoming, New Mexico, Texas or elsewhere, each must turn to their engineers to extract the uranium from those sand grains and process them to produce an economic quantity of uranium oxide, or U3O8. The overwhelming majority of ISL facilities, designed in the United States Authentic Gerald Everett Jersey , were engineered by Harry Anthony, Doug Norris and Dennis Stover.


Trained as a mechanical engineer, Harry Anthony has been involved with more than ten ISL uranium operations from Union Carbide's Palangana in 1976 to Uranium Resources? Bruni, Benavides, North Platte, Kingsville Dome and Rosita ISL projects. Anthony's consulting work has taken him to ISL projects in Kazakhstan, Uzbekistan and the Czech Republic. Dennis Stover is best remembered for designing Smith Ranch in Wyoming Authentic Todd Gurley II Jersey , now owned by Cameco Corp. With a PhD in chemica.