Guidelines on the Use of Thermistor and Time Domain Reflectometry Instrumentation for Spring Thaw Road Management on Low-volume Asphalt Roads

Guidelines on the Use of Thermistor and Time Domain Reflectometry Instrumentation for Spring Thaw Road Management on Low-volume Asphalt Roads PDF Author: Gordon L. Hanek
Publisher:
ISBN:
Category : Low-volume roads
Languages : en
Pages : 52

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Engineering Field Notes

Engineering Field Notes PDF Author:
Publisher:
ISBN:
Category : Forestry engineering
Languages : en
Pages : 158

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Advances in Reflectometric Sensing for Industrial Applications

Advances in Reflectometric Sensing for Industrial Applications PDF Author: Andrea Cataldo
Publisher: Springer Nature
ISBN: 3031794974
Category : Technology & Engineering
Languages : en
Pages : 84

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Book Description
This book offers a comprehensive review of innovative measurement and monitoring solutions based on time domain reflectometry (TDR). This technique has numerous applications in several fields, ranging from the characterization of electronic devices to quality control of vegetable oils. However, most of the well-established TDR-based monitoring solutions rely on local or punctual probes; therefore, typically, to monitor large areas/volumes, a high number of probes must be employed, with the consequent maintenance and management requirements. On such bases, in the last few years, the authors have carried out extensive research on the use of diffused wire-like sensing elements to be used as probes for TDR measurements. The basic idea has been to extend the principles of punctual TDR-based monitoring to multi-purpose networks of diffused, sensing elements (SE's), embedded permanently within the systems to be monitored (STBM's). These SEs can be tens of meters long, and can follow any desired path inside the STBM.; in fact, they are inactive inside the STBM. Additionally, these SE's are passive (i.e., they do not require batteries) and their sensing ability is activated, by the TDR signal, when they are connected to the measurement instrument. In addition to this, these SE's are completely maintenance-free. Starting from these considerations, this book addresses the use of low-cost, passive, flexible, wire-like SE's to be used in conjunction with TDR. This book also provides several application test cases, with hints for practical implementation of the described monitoring systems.

Introduction to Environmental Soil Physics

Introduction to Environmental Soil Physics PDF Author: Daniel Hillel
Publisher: Elsevier
ISBN: 008049577X
Category : Technology & Engineering
Languages : en
Pages : 511

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Book Description
An abridged, student-oriented edition of Hillel's earlier published Environmental Soil Physics, Introduction to Environmental Soil Physics is a more succinct elucidation of the physical principles and processes governing the behavior of soil and the vital role it plays in both natural and managed ecosystems. The textbook is self-contained and self-explanatory, with numerous illustrations and sample problems. Based on sound fundamental theory, the textbook leads to a practical consideration of soil as a living system in nature and illustrates the influences of human activity upon soil structure and function. Students, as well as other readers, will better understand the importance of soils and the pivotal possition they occupy with respect to careful and knowledgeable conservation. - Written in an engaging and clear style, posing and resolving issues relevant to the terrestrial environment - Explores the gamut of the interactions among the phases in the soil and the dynamic interconnection of the soil with the subterranean and atmospheric domains - Reveals the salient ideas, approaches, and methods of environmental soil physics - Includes numerous illustrative exercises, which are explicitly solved - Designed to serve for classroom and laboratory instruction, for self-study, and for reference - Oriented toward practical problems in ecology, field-scale hydrology, agronomy, and civil engineering - Differs from earlier texts in its wider scope and holistic environmental conception

Guide for Industrial Waste Management

Guide for Industrial Waste Management PDF Author: Birute Vanatta
Publisher: DIANE Publishing
ISBN: 0756705703
Category :
Languages : en
Pages : 406

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Book Description
Designed to assist facility managers, state & tribal environmental managers, & the public to evaluate & choose protective practices for managing industrial waste in new landfills, waste piles, surface impoundments, & land application units. Identifies the components of a sound waste management system & the reasons why each is important. Also includes groundwater & air models, as well as other tools to help tailor waste management practices to a particular facility. This guidance reflects 4 underlying principles: protect human health & the environment; tailor management practices to risks; affirm state & tribal leadership; & foster a partnership.

Strategic Highway Research Program

Strategic Highway Research Program PDF Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 622

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Pavement Design for Seasonal Frost Conditions

Pavement Design for Seasonal Frost Conditions PDF Author:
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 88

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Sensing Issues in Civil Structural Health Monitoring

Sensing Issues in Civil Structural Health Monitoring PDF Author: Farhad Ansari
Publisher: Springer Science & Business Media
ISBN: 9781402036606
Category : Technology & Engineering
Languages : en
Pages : 552

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Book Description
Civil infrastructure systems are generally the most expensive assets in any country, and these systems are deteriorating at an alarming rate. In addition, these systems have a long service life in comparison to most other commercial products. As well, the introduction of intelligent materials and innovative design approaches in these systems is painfully slow due to heavy relianceon traditional construction and maintenance practices, and the conservative nature of design codes. Feedback on the "state of the health" of constructed systems is practically nonexistent. In the quest for lighter, stronger and corrosion-resistant structures, the replacement of ferrous materials by high-strength fibrous ones is being actively pursued in several countries around the world, both with respect to the design of new structures as well as for the rehabilitation and strengthening of existing ones. In North America, active research in the design of new highway bridges is focused on a number of specialty areas, including the replacement of steel reinforcing bars in concrete deck slabs by randomly distributed low-modulus fibers, and the replacement of steel prestressing cables for concrete components by tendons comprising super-strong fibers. Research is also being conducted on using FRPs to repair and strengthen existing structures.

Guide to Meteorological Instruments and Methods of Observation

Guide to Meteorological Instruments and Methods of Observation PDF Author: World Meteorological Organization
Publisher: World Meteorological Organization
ISBN:
Category : Science
Languages : en
Pages : 618

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Subsurface Characterization and Monitoring Techniques

Subsurface Characterization and Monitoring Techniques PDF Author: J. Russell Boulding
Publisher: DIANE Publishing
ISBN: 0788132040
Category :
Languages : en
Pages : 494

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Book Description
Provides information on where to go to find detailed guidance on how to use these techniques. Covers: remote sensing & surface geophysical methods; drilling & solids sampling methods; geophysical logging of boreholes; aquifer test methods; ground water sampling methods; Vadose Zone (VZ) hydrologic properties: water state, infiltration, conductivity, & flux; VZ water budget characterization methods; VZ soil-solute/gas sampling & monitoring methods; & chemical field screening & analytical methods. Charts, tables, graphs & drawings.