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Membrane distillation (MD) is a relatively new thermal membrane process which is attracting significant interest as a potential low cost and energy saving alternative to conventional separation processes such as distillation and reverse osmosis (RO). Its main advantages are the possibility to exploit waste grade heat and low grade heat for operation, and the production of high-purity distillate which is almost independent of feed concentration. Other benefits include the theoretically complete rejection of non-volatile solutes, the relative operating pressure and membrane-fouling problem. On the contrary, wetting and temperature polarization are its main drawbacks. The Special Issue covers developments at various forefronts of MD, including membrane preparation, fouling and scaling issues, process improvements and applications.
Membrane distillation. --- Membrane evaporation --- Thermopervaporation --- Transmembrane evaporation --- Distillation
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This work presents the different stages in mango processing, from fruit delivery to dried mango marketing. It includes a detailed analysis of each operation: theoretical principles, equipment required, good practice in terms of usage and hygiene, quality management, "material" yields and energy consumption, labour requirements, etc. In addition to technical advice notes, readers will find a diagram of a mango drying unit, designs for a ventilated dryer, and a production manual for use in preparing for, monitoring and assessing drying campaigns. The guide is intended for managers of small- and medium- scale firms keen to improve operations at their production units, and entrepreneurs and project leaders interested in setting up mango drying units.
Mango --- Fruit --- Drying of fruit --- Evaporation of fruit --- Mangifera indica --- Mango tree --- Mangifera --- Drying. --- Evaporation --- Preservation --- fruit --- technical processing --- technical preservation
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Evapotranspiration is a very complex phenomenon, comprising different aspects and processes (hydrological, meteorological, physiological, soil, plant and others). Farmers, agriculture advisers, extension services, hydrologists, agrometeorologists, water management specialists and many others are facing the problem of evapotranspiration. This book is dedicated to further understanding of the evapotranspiration problems, presenting a broad body of experience, by reporting different views of the authors and the results of their studies. It covers aspects from understandings and concepts of evapotranspiration, through methodology of calculating and measuring, to applications in different fields, in which evapotranspiration is an important factor. The book will be of benefit to scientists, engineers and managers involved in problems related to meteorology, climatology, hydrology, geography, agronomy and agricultural water management. We hope they will find useful material in this collection of papers.
Evapotranspiration. --- Consumptive use --- Water-supply --- Evaporation (Meteorology) --- Plants --- Transpiration --- Water requirements --- Agricultural engineering & machinery
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This book represents an overview of the direct measurement techniques of evapotranspiration with related applications to the water use optimization in the agricultural practice and to the ecosystems study. Different measuring techniques at leaf level (porometry), plant-level (sap-flow, lysimetry) and agro-ecosystem level (Surface Renewal, Eddy Covariance, Multi layer BREB), are presented with detailed explanations and examples. For the optimization of the water use in agriculture, detailed measurements on transpiration demands of crops and different cultivars, as well as results of different irrigation schemes and techniques (i.e. subsurface drip) in semi-arid areas for open-field, greenhouse and potted grown plants are presented. Aspects on ET of crops in saline environments, effects of ET on groundwater quality in xeric environments as well as the application of ET to climatic classification are also depicted. The book provides an excellent overview for both, researchers and student,s who intend to address these issues.
Evapotranspiration. --- Consumptive use --- Water-supply --- Evaporation (Meteorology) --- Plants --- Transpiration --- Water requirements --- Agricultural engineering & machinery
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Evapotranspiration - An Overview contains recent advances in the physics of evaporation and transpiration from a typical experimental site to large scale areas. It incorporates many years of authors experience with the latest research on the methods and the models used worldwide, engaging advanced technology and modern instrumentation. The reader benefits from the in-depth analysis and the diverse sites and settings, where the models, applications and methods are tested. Weather conditions, soil moisture, geology, climatic systems are examined for their role and influence on the theoretical and actual water demand by the atmosphere in the earth's ecosystem. This book not only provides students and scientists with the information to improve the procedures for estimating evapotranspiration, but will also help them to manage and evaluate the observed data.
Evapotranspiration. --- Consumptive use --- Water-supply --- Evaporation (Meteorology) --- Plants --- Transpiration --- Water requirements --- Hydrology & the hydrosphere
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A new measurement concept was developed to determine the amount, variability and governing factors of evaporation from the Dead Sea. Additionally, a suitable indirect method to calculate evaporation is presented. Results show that vapour pressure deficit and wind speed are governing evaporation and that the diurnal cycle is determined by three distinct diurnal wind systems. The occurrence frequency and intensity of the wind systems are determined by local differential cooling and heating.
Measurements --- Messungen --- Verdunstung --- Energiebilanz --- periodische Windsysteme --- Energy Balance --- Periodic Wind Systems --- Evaporation
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Evapotranspiration is the largest outgoing water flux from the Earth's surface; its accurate quantification is critical for the crop development in conditions of the climate changes from recent decades, and it can contribute to a greater understanding of a range of agricultural ecosystem processes. To evaluate the hydric requirements of the crops, it was agreed that they should be reported to a maximum global evapotranspiration called potential evapotranspiration. To estimate this variable, a variety of methods were developed, each with its benefits as well as trade-offs. Their use, however, is laborious due to their complexity and of the large number of parameters required. In this book, specialists' concerns worldwide to develop simple but reliable methodologies - with less data requirement - which will give accurate and appropriate results - are presented. In addition, a study of the physics of the moisture evaporation process from porous media to elucidate what are the mechanisms of moisture migration from granular biopesticides is presented in the last chapter.
Evapotranspiration. --- Consumptive use --- Water-supply --- Evaporation (Meteorology) --- Plants --- Transpiration --- Water requirements --- Life Sciences --- Earth Science --- Climatology --- Environmental Sciences
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Since the beginning of its formation approximately three billion years ago, the hydrosphere - as an envelope of the terrestrial ellipsoid - has remained constant from a quantitative point of view. The hydrosphere modifies only the ratio of the stretches of the planetary ocean and land, including the proportion of the states of water aggregation: gaseous, liquid, and solid.The hydrological cycle transports only a portion of the hydrosphere, repeats itself annually, and presents itself as a huge planetary plant that for billions of years has operated uninterruptedly on the basis of solar energy and gravity, providing freshwater resources for the maintenance and perpetuation of life beyond the planetary ocean.Water resources are highly influenced by the hydrologic cycle and play a role in agricultural economic development. However, as is shown by the Intergovernmental Panel on Climate Change report, the phenomena of changing climate and land use are set to exacerbate an already serious situation of water supply for various users. In this context, scientific investigations into the issue of the sustainable use of water are timely and important. Improvement of water management involves the accurate estimation of consumptive uses. The purpose of this book is to show the achievements of scientists and academicians all over the world in promoting and sharing new issues on various topics related to evapotranspiration.
Evapotranspiration. --- Consumptive use --- Water-supply --- Evaporation (Meteorology) --- Plants --- Transpiration --- Water requirements --- Life Sciences --- Earth Science --- Hydrology --- Environmental Sciences
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This edition of Evapotranspiration - Remote Sensing and Modeling contains 23 chapters related to the modeling and simulation of evapotranspiration (ET) and remote sensing-based energy balance determination of ET. These areas are at the forefront of technologies that quantify the highly spatial ET from the Earth's surface. The topics describe mechanics of ET simulation from partially vegetated surfaces and stomatal conductance behavior of natural and agricultural ecosystems. Estimation methods that use weather based methods, soil water balance, the Complementary Relationship, the Hargreaves and other temperature-radiation based methods, and Fuzzy-Probabilistic calculations are described. A critical review describes methods used in hydrological models. Applications describe ET patterns in alpine catchments, under water shortage, for irrigated systems, under climate change, and for grasslands and pastures. Remote sensing based approaches include Landsat and MODIS satellite-based energy balance, and the common process models SEBAL, METRIC and S-SEBS. Recommended guidelines for applying operational satellite-based energy balance models and for overcoming common challenges are made.
Evapotranspiration --- Hydrologic models. --- Remote sensing. --- Consumptive use --- Water-supply --- Evaporation (Meteorology) --- Plants --- Hydrological modeling --- Hydrological models --- Hydrology --- Hydrology models --- Models and modelmaking --- Transpiration --- Water requirements --- Models --- Hydrology & the hydrosphere
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The importance of evapotranspiration is well-established in different disciplines such as hydrology, agronomy, climatology, and other geosciences. Reliable estimates of evapotranspiration are also vital to develop criteria for in-season irrigation management, water resource allocation, long-term estimates of water supply, demand and use, design and management of water resources infrastructure, and evaluation of the effect of land use and management changes on the water balance. The objective of this Special Issue is to define and discuss several ET terms, including potential, reference, and actual (crop) ET, and present a wide spectrum of innovative research papers and case studies.
evapotranspiration --- machine learning --- local --- spatial --- subhumid climate --- agricultural drought --- drought characteristics --- evapotranspiration deficit index --- parameter sensitivity --- temporal scale sensitivity --- water stress anomaly --- interception --- linear storage model --- evaporation --- cover crop --- water balance --- faba bean --- GK2A/AMI --- artificial neural network --- Korean Peninsula --- CWSI --- UAV --- remote sensing --- micrometeorological data --- spatial IRT measurements --- crop irrigation scheduling and management --- infrared radiometer sensors --- real-time data analysis --- water reservoir --- regression --- observed data --- ERA5-Land data --- R language --- precipitation --- drought --- Mann–Kendall --- trend analysis --- actual evapotranspiration --- potential evapotranspiration --- reference evapotranspiration --- evaporation paradox --- global dimming --- wind stilling --- forest fires --- groundwater --- stochastic simulation --- marginal structure --- long-range dependence --- Hurst–Kolmogorov dynamics --- RASPOTION --- parametric model --- hydrological calibration --- evapotranspiration estimation --- urban rain gardens --- lysimeters --- evapotranspiration models --- n/a --- Mann-Kendall --- Hurst-Kolmogorov dynamics
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