Author: James WangPublisher:
ISBN:
Category : Microwaves
Languages : en
Pages : 44
Book Description
Dielectric Constants of Soils at Microwave Frequencies - II
Author: James WangPublisher:
ISBN:
Category : Microwaves
Languages : en
Pages : 44
Book Description
Dielectric Constants of Soils at Microwave Frequencies-2
Author: Dielectric Constants of Soils at Microwave Frequencies-2
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781726012447
Category :
Languages : en
Pages : 38
Book Description
The dielectric constants of several soil samples were measured at frequencies of 5 and 19 GHz using the infinite transmission line method. The results of these measurements are presented and discussed with respect to soil types and texture structures. A comparison is made with other measurements at 1.4 GHz. At all three frequencies, the dependence of dielectric constant on soil moisture can be approximated by two straight lines. At low moisture, the slope is less than at high moisture level. The intersection of the two lines is believed to be a function of soil texture. Wang, J. and Schmugge, T. and Williams, D. Goddard Space Flight Center NASA-TP-1238, G-7802-13 RTOP 177-51-41...
NASA Technical Paper
Author: Dielectric Properties of Agricultural Materials and their Applications
Author: Stuart NelsonPublisher: Academic Press
ISBN: 012802545X
Category : Science
Languages : en
Pages : 292
Book Description
Dielectric Properties of Agricultural Materials and Their Applications provides an understanding of the fundamental principles governing dielectric properties of materials, describes methods for measuring such properties, and discusses many applications explored for solving industry problems. The information in this reference stimulates new research for solving problems associated with production, handling, and processing of agricultural and food products. Anyone seeking a better understanding of dielectric properties of materials and application of radio-frequency and microwave electromagnetic energy for solution of problems in agriculture and related fields will find this an essential resource. - Presents applications of dielectric properties for sensing moisture in grain and seed and the use of such properties in radio-frequency and microwave dielectric heating of agricultural materials - Offers information for finding correlations between dielectric properties and quality attributes such as sweetness in melons, or other desired characteristics of agricultural products - Identifies conditions for selective dielectric heating of materials such as insects in grain or biological organisms in soils - Provides a solid understanding of dielectric properties and the variables that influence these properties
Modern Applications of Electrostatics and Dielectrics
Author: Dengming XiaoPublisher: BoD – Books on Demand
ISBN: 1838803017
Category : Science
Languages : en
Pages : 140
Book Description
Electrostatics and dielectric materials have important applications in modern society. As such, they require improved characteristics. More and more equipment needs to operate at high frequency, high voltage, high temperature, and other harsh conditions. This book presents an overview of modern applications of electrostatics and dielectrics as well as research progress in the field.
NASA Scientific and Technical Publications
Author: Encyclopedia of Remote Sensing
Author: Eni NjokuPublisher:
ISBN: 9781785396229
Category : Electronic books
Languages : en
Pages :
Book Description
This first encyclopaedic reference on remote sensing describes the concepts, techniques, instrumentation, data analysis, interpretation, and applications of remote sensing, both airborne and space-based. Scientists, engineers, academics, and students can quickly access answers to their reference questions and direction for further study.
Microwave Dielectric Behaviour of Wet Soils
Author: Jitendra BehariPublisher: Springer Science & Business Media
ISBN: 1402032889
Category : Science
Languages : en
Pages : 177
Book Description
This book offers detailed discussion of dielectric measurement and behaviour of wet soil, from theoretical and experiment points of view. The author describes numerous microwave measurement techniques and protocols, and shows how to evaluate and choose among them. The book is written primarily with the requirements of interdisciplinary researchers in agriculture and soil science in mind.
Fundamentals of Geoenvironmental Engineering
Author: Abdel-Mohsen O. MohamedPublisher: Butterworth-Heinemann
ISBN: 0128051450
Category : Technology & Engineering
Languages : en
Pages : 710
Book Description
Fundamentals of Geoenvironmental Engineering: Understanding Soil, Water, and Pollutant Interaction and Transport examines soil-water-pollutant interaction, including physico-chemical processes that occur when soil is exposed to various contaminants. Soil characteristics relevant to remedial techniques are explored, providing foundations for the correct process selection. Built upon the authors' extensive experience in research and practice, the book updates and expands the content to include current processes and pollutants. The book discusses propagation of soil pollution and soil characteristics relevant to remedial techniques. Practicing geotechnical and environmental engineers can apply the theory and case studies in the book directly to current projects. The book first discusses the stages of economic development and their connections to the sustainability of the environment. Subsequent chapters cover waste and its management, soil systems, soil-water and soil-pollutant interactions, subsurface transport of pollutants, role of groundwater, nano-, micro- and biologic pollutants, soil characteristics that impact pollution diffusion, and potential remediation processes like mechanical, electric, magnetic, hydraulic and dielectric permittivity of soils. - Presents a clear understanding of the propagation of pollutants in soils - Identifies the physico-chemical processes in soils - Covers emerging pollutants (nano-, micro- and biologic contaminants) - Features in-depth coverage of hydraulic, electrical, magnetic and dielectric permittivity characteristics of soils and their impact on remedial technologies