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The origin of GCLs can be traced back to 1962 when Arthur G. Clem filed a patent for preformed moisture impervious panels which combined bentonite clay with corrugated paperboard. [2] In 1982, Arthur J. Clem filed a patent for a what would today be recognized as a GCL which combined bentonite clay, adhesive, and a geotextile. [ 3 ]
They consist of nubbed, dimpled or cuspated polymer sheets, three-dimensional networks of stiff polymer fibers in different configurations and perforated mini-pipes or spacers within geotextiles. Their design function is completely within the drainage area where they are used to convey liquids or gases of all types.
Location of the Philippines. The Philippines is a sovereign island country in Southeast Asia situated in the western Pacific Ocean. It is a founding member of the United Nations, World Trade Organization, Association of Southeast Asian Nations, the Asia-Pacific Economic Cooperation forum, and the East Asia Summit.
This list is based on the Forbes Global 2000, which ranks the world's 2,000 largest publicly traded companies. The Forbes list takes into account a multitude of factors, including the revenue, net profit, total assets and market value of each company; each factor is given a weighted rank in terms of importance when considering the overall ...
Manage and operate the market for the wholesale purchase of electricity and ancillary services in the Philippines (the Wholesale Electricity Spot Market) and engage in services related to the same, in accordance with Republic Act No. 9136 including its implementing rules and regulations, the rules promulgated to govern the operations of the ...
Puregold Price Club, Inc. or simply Puregold (stylized in all caps) is a chain of supermarkets in the Philippines trading goods such as consumer products (canned goods, housewares, toiletries, dry goods, and food products, among others) on a wholesale and retail basis. It currently has approximately more than 400 operating stores and over 20 ...
The following list of mines in the Philippines is subsidiary to the Lists of mines in Asia article and Lists of mines articles. This list contains working, defunct and future mines in the country and is organised by the primary mineral output(s) and province. For practical purposes stone, marble and other quarries may be
The Philippines enforced the Ramsar Convention in its whole territory on November 8, 1994. Since then, Ramsar has designated 10 Ramsar sites in the country. Two Ramsar sites in the Philippines have been declared by UNESCO as World Heritage Sites, namely Puerto Princesa Subterranean River National Park, and Tubbataha Reefs Natural Park. [2]