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Extracting topographic structure from digital elevation data for geographic information system analysis. Photogrammetric Engineering and Remote
- Sensing
, 1988
"... ABSTRACT: Software tools have been developed at the U.S. Geological Survey’s EROS Data Center to extract topographic structure and to delineate watersheds and overland flow paths from digital elevation models. The tools are special purpose FORTRAN programs interfaced with general-purpose raster and ..."
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Cited by 235 (0 self)
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receives a value equal to the number of cells that drain to it. The original DEM and these three derivative data sets can then be processed in a variety of ways to optionally delineate drainage networks, overland paths, watersheds for user-specified locations, sub-watersheds for the major tributaries of a
Foam drainage in two dimensions
- Colloids and Surfaces A: Physicochemical Engineering Aspects
, 2005
"... A two-dimensional foam between glass plates is subjected to a forced drainage experiment. The propagation of the surfactant solution into the foam is measured and compared with computer simulations of a foam drainage equation. The spread of liquid both vertically, due to gravity, and horizontally, d ..."
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Cited by 1 (1 self)
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A two-dimensional foam between glass plates is subjected to a forced drainage experiment. The propagation of the surfactant solution into the foam is measured and compared with computer simulations of a foam drainage equation. The spread of liquid both vertically, due to gravity, and horizontally
Cladding Drainage Backup
"... Note 1: If insulation is low permeance the air barrier can be permeable. Verify via hygrothermal analysis. Note 2: For specialty buildings, such as natatoriums, humidified museums, libraries, laboratories, etc., consult with a building enclosure consultant. Barrier Wall Systems Vapor retarder except ..."
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to outside at vertical joint. Ignore this for other wall types. Transition membrane adhered to precast at joints with a bellows to allow movement Termination bars Interior air barrier if conditions warrant Preferred insulation; closed-cell spray polyurethane foam with a fireproof coating (review
The antibody response of rats depleted of lymphocytes by chronic drainage from the thoracic duct
, 1963
"... Experimental procedures which deplete lymphoid tissue of small lymphocytes have provided circumstantial evidence that small lymphocytes play a part in primary immune responses. Thus, the primary antibody response of animals can be depressed or abolished by agents which damage lymphoid tissue in vivo ..."
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Cited by 29 (3 self)
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to a lack of small lymphocytes would be greatly strengthened if the unresponsiveness could be corrected by injections of small lymphocytes from normal animals. Adult rats can be depleted of small lymphocytes by the chronic drainage of cells from a thoracic duct fistula, and they will still give a
A STUDY ON THE BEHAVIOUR OF ALTERNATIVE DRAINAGE SYSTEMS IN
, 2007
"... SUMMARY: Drainage and liquid collection systems are components of fundamental importance in landfills and waste disposal areas. Sand, gravels and geosynthetics are materials commonly used as filters and draining media in landfill drainage systems. However, the waste itself contains elements that cou ..."
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that could be employed as drainage material. This paper presents an investigation on the use of recycled rubble and tires (whole and shreds) as drainage materials of domestic waste disposal areas in combination with geotextile filters. Two large experimental cells and two metallic containers were employed
BIOGRAPHICAL SKETCH Susan Jenson is a Senior Applications Scientist at the U.S. Geological Survey's EROS Data Center in Sioux Falls,
"... Digital elevation model (DEM) data in a raster format can be used to automatically derive the drainage character istics of an area. A procedure has been designed that is capable of operating on matrices of elevation data having no algorithmically imposed size limit, while performing within the resol ..."
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the resolution and accuracy tolerances of the DEM data. Each cell is processed as the center of a 3- by 3-cell spatial window in the raster elevation data. If a cell is a local minimum in comparison with two of its non-adjacent neighbors, it is labeled as a drainage cell. The linkages of the drainage cells
1 THE ROLE OF MICROORGANISMS IN ACID ROCK DRAINAGE
"... Microorganisms are directly or indirectly involved in many chemical alterations and in the decomposition of minerals required for their growth. Microbial dissolution of sulfide minerals under acidic conditions can produce over 1,000 times more Acid Rock Drainage (ARD) than chemical action alone. Mic ..."
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Microorganisms are directly or indirectly involved in many chemical alterations and in the decomposition of minerals required for their growth. Microbial dissolution of sulfide minerals under acidic conditions can produce over 1,000 times more Acid Rock Drainage (ARD) than chemical action alone
Fibronectin in Human Trabecular Drainage Channels Materials and Methods
"... Fibronectin, an extracellular glycoprotein, has been shown to be produced by human trabecular cells in culture by our group as well as Polansky and co-investigators. Studies of Rodrigues et al suggested that fibronectin may be one of several glycoproteins found in increased amounts in the corneoscl ..."
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Fibronectin, an extracellular glycoprotein, has been shown to be produced by human trabecular cells in culture by our group as well as Polansky and co-investigators. Studies of Rodrigues et al suggested that fibronectin may be one of several glycoproteins found in increased amounts
The Frontal Sinus Drainage Pathway and Related Structures
"... The purpose of this pictorial essay is to provide a visual guide to the frontal sinus drainage pathway (FSDP), associated anatomic structures, and normal variations in sinus anatomy (Figs 1–9). Suggested readings provide more detailed descriptions of para-nasal sinus anatomy and terminology for furt ..."
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for further study (1–9). Sinus nomenclature may be both redundant and confusing (10, 11). Originally, the terms sinus, antrum, and recess all referred to a cavity, then a cavity within a bone. Now an osseous recess is an air space with more than one drainage ostium (as distinct from an osseous air cell, which
EXTERNAL FULL-TIME VACUUM LYSIMETER DRAINAGE SYSTEM
"... ABSTRACT. Low-cost weighing lysimeters have been demonstrated with accuracies better than 0.1 mm. However, these low-cost lysimeters lack full-time vacuum drainage systems; and they lack access to the lysimeter tank for installation and maintenance of a vacuum system. Without frequent manual drainag ..."
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consists of a buried vertical cylindrical vacuum chamber, inside of which a drainage collection tank is suspended from a load cell. A small enclosure containing a vacuum pump, vacuum sensor, and ports for accessing the drainage chamber is situated above the vacuum chamber and level with the field surface
Results 1 - 10
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445
