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Articles 481 - 482 of 482
Full-Text Articles in Entire DC Network
Analysis Of The Utility Of A Normalized Difference Vegetation Index For Inventorying Urban Greenspace, Thomas J. Dobbs
Analysis Of The Utility Of A Normalized Difference Vegetation Index For Inventorying Urban Greenspace, Thomas J. Dobbs
Electronic Theses and Dissertations 1990 - 1999
Satellite derived vegetative data of urban areas is normally classified into several classes of trees, fields, grass and bare soil using unsupervised and supervised classification methods. Normalized Difference Vegetation Indexes (NDVI) have traditionally been applied to agricultural satellite images to assess the health and maturity of commercial crops. When a NDVI is used to examine urban vegetation, many discrete data values are generated which can be differentiated into meaningful vegetation classes.
Behavior Of Eccentrically Loaded Slender Concrete Columns Reinforced With Cfrp Bars, Wei. Xia
Behavior Of Eccentrically Loaded Slender Concrete Columns Reinforced With Cfrp Bars, Wei. Xia
Electronic Theses and Dissertations 1990 - 1999
In a highly corrosive environment, corrosion is the main factor leading to deterioration and eventual failure of conventional reinforced or prestressed concrete structures. Carbon Fiber Reinforced Plastics (CFRP) are considered as an alternative to steel reinforcement due to its excellent corrosion resistance. This investigation was conducted to establish the feasibility of using CFRP cables as reinforcing elements in reinforced concrete columns. Besides investigating durability of CFRP cables in adverse environments (alkali and sea water) experimental and theoretical studies were carried out to study the behavior of CFRP reinforced concrete slender columns under combined axial load and bending moment. Exposure to …