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GeoMeasurements by Pulsing TDR Cables and Probes examines Time Domain Reflectometry (TDR) research and provides information on its use as a robust, reliable, and economical production tool. Common uses for TDR technology include telecommunications and power industries, but the text examines applications such as measurement of moisture of unsaturated soils; detection of fluids for leak and pollution; measurement of water levels for hydrological purposes; measurement of water pressures beneath dams; and deformation and stability monitoring of mines, slopes, and structures. Chapters discuss: · basic physics of signal generation, transmission, and attenuation along the coaxial cable · probe designs and procedures for calibration as well as the variation in probe responses to changes in water content and soil mineralogy · variations in waveform characteristics associated with cable, deformation, cable calibration, and installation techniques for metallic cables in rock · several cases demonstrating the use of TDR cables in soil as well as weathered and soft rock · a rationale for the use of compliant cable in soil · the use of metallic cable (MTDR) and optical fiber (OTDR) to monitor response of structures · sensor/transducer components, connections from the sensors to the TDR pulser/sampler, and system control methods · available software for transmission and analysis of TDR signatures The diverse interest and terminology within the TDR community tends to obscure commonalities and the universal physical principles underlying the technology. The authors seek to crystallize the basic principles among the seemingly divergent specialties using TDR technology in geomaterials. By examining varied experiences, GeoMeasurements by Pulsing TDR Cables and Probes provides a synergistic text necessary to unify the field..
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While it is generally accepted that flood pulsing and disturbance dynamics are critical to wetland viability, there is as yet no consensus among those responsible for wetland restoration about how best to plan for those phenomena or even whether it is really necessary to do so at all. In this groundbreaking book, Dr. Beth Middleton draws upon the latest research from around the world to build a strong case for making flood pulsing and disturbance dynamics integral to the wetland restoration planning process.

While the initial chapters of the book are devoted to laying the conceptual foundations, most of the coverage is concerned with demonstrating the practical implications for wetland restoration and management of the latest ecological theory and research. It includes a fascinating case history section in which Dr. Middleton explores the restoration models used in five major North American, European, Australian, African, and Asian wetland projects, and analyzes their relative success from the perspective of flood pulsing and disturbance dynamics planning.

Wetland Restoration also features a wealth of practical information useful to all those involved in wetland restoration and management, including:
* A compendium of water level tolerances, seed germination, seedling recruitment, adult survival rates, and other key traits of wetland plant species
* A bibliography of 1,200 articles and monographs covering all aspects of wetland restoration
* A comprehensive directory of wetland restoration ftp sites worldwide
* An extensive glossary of essential terms


Wetland Restoration, Flood Pulsing, and Disturbance Dynamics is a valuable working resource for wetland restoration consultants, employees of government agencies, and professional land managers, as well as ecologists, foresters, and geologists involved with wetland restoration and management. It is also an excellent text for advanced courses in wetland restoration..
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This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Galveston Bay, Texas, is a large shallow estuary with a watershed that includes 60% of the major industrial facilities of Texas. However, the system exhibits low to moderate (2-20 @mg l^-^1) microalgal biomass with sporadic phytoplankton blooms. Both nitrogen (N) and phosphate (P) limitation of phytoplankton growth have been proposed for the estuary. However, shifts between N and P limitation of algae growth may occur due to annual fluctuations in nutrient concentrations. The primary goal of this work was to determine the primary limiting nutrient for phytoplankton in Galveston Bay. Nutrient addition bioassays were used to assess short-term (1-2 days) phytoplankton responses (both biomass and community composition) to potentially limiting nutrients. The experimental bioassays were conducted over an annual cycle using natural water collected from the center to lower part of the estuary. Total phytoplankton biomass increased in the nitrate (10 @mM) additions in 11 of the 13 bioassays, but no significant increases were detected in the phosphate (3 @mM)-only additions. Bioassay results suggest that the phytoplankton community was usually not phosphate limited. All major groups increased in biomass following nitrate additions but diatoms increased in biomass at a faster rate than other groups, shifting the community composition toward higher relative abundance of diatoms. The results of this study suggest that pulsed N input events preferentially favor increases in diatom biomass in this estuary. The broader implications of this study are that N pulsing events, primarily due to river discharge, play an important role in structuring the phytoplankton community in the Galveston Bay estuary. .
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This digital document is an article from Battery & EV Technology, published by Business Communications Company, Inc. on October 1, 2004. The length of the article is 393 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: Pulsing Avoids Charging Risks.
Publication:Battery & EV Technology (Newsletter)
Date: October 1, 2004
Publisher: Business Communications Company, Inc.
Volume: 29 Issue: 7 Page: NA

Distributed by Thomson Gale.
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The poems in Jennifer Martin’s Pulsing Elements are written simply, but they are far from simple either in thought or execution In what could serve as an epigraph for the collection, Martin writes: Search for the simple truth Without the gloss of literary concepts And you will be amazed And amazed we are. One of the best things about these poems is their freedom from just such extraneous gloss, allowing their simple yet provoking depth to shine through. Martin seeks the “simple truth” through a reflection on the four classical elements named by the Greek philosopher Empedocles as Fire, Earth, Wind, and Water. Her purpose, she states, is to “tug at the very soul of our existence,” but by this she means to tug at the elemental aspects of the human spirit, those emotions that connect us to the natural world rather than separate us from it. Martin’s poems acknowledge both destruction and creation and, when read slowly, reveal greater depths than their surface simplicity at first suggest. Her truth is indeed simple, but it is one that has struck the best minds from the beginning: that creation and destruction can coexist within the same things—earth, wind, water, fire. While not a new truth, it is worth revisiting, and in calling attention to it, Martin would have us be struck too. Ellen Tanner Marsh, New York Times Bestselling Author.
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