نتایج جستجو برای: moisture measurement
تعداد نتایج: 478666 فیلتر نتایج به سال:
1 Department of Post Harvest Technology, Leibniz Institute of Agricultural Engineering Potsdam-Bornim (ATB) Max-Eyth-Allee 100, Potsdam, D-14469, Germany Tel.:+49 331 5699321 2 TEWS Elektronik, Sperberhorst 10, Hamburg, D-22459, Germany Tel. +49 405 55911-0 3 Department of Physics and Process Control, Szent Istvan University Gödöllö 2103 Gödöllö, Pater K. u. 1., Tel.: +36 28 522055, Fax: +36 28...
Low permeation measurements through polymer substrates is very critical and there is no definite commercial method for measuring a water vapor transmission rate of 10 gym yday at 39 8C and 95% RH at atmospheric pressure. A novel moisture y6 2 permeation measurement method and model was developed qualitatively and quantitatively with the ‘calcium degradation test’ method. It is well known that o...
Thermoplastic properties of extruded sugar beet pulp (SBP) are closely linked to water–polymer relationships. DSC analyses of water evaporation, water fusion and biopolymer relaxation according to SBP moisture content gave a more accurate estimation of SBP hydration steps than classical water adsorption isotherm. Three moisture contents (8%, 26%, 41% db) were then defined as limits of the diffe...
Soil moisture is a key variable in dryland ecosystems since it determines the occurrence and duration of vegetation water stress and affects the development of weather patterns including rainfall. However, the lack of ground observations of soil moisture and rainfall dynamics in many drylands has long been a major obstacle in understanding ecohydrological processes in these ecosystems. It is al...
This paper describes the development and investigation of a multi-spectral laser scanner for non destructive diagnosis of damages on building surfaces. The application of four semiconductor lasers as defined active light source, especially in infrared wavelengths, allows the detection of damages like moisture, salt blooming and biological covering. Different methods for the evaluation of multis...
[1] In this study we estimate a time series of regional groundwater anomalies by combining terrestrial water storage estimates from the Gravity Recovery and Climate Experiment (GRACE) satellite mission with in situ soil moisture observations from the Oklahoma Mesonet. Using supplementary data from the Department of Energy’s Atmospheric Radiation Measurement (DOE ARM) network, we develop an empi...
Soil moisture information is of critical importance to real-world applications such as agriculture, water resource management, flood, fire and landslide prediction, mobility, soil hydraulic parameter estimation etc. Many of these applications require soil moisture information at high resolution. While this may be estimated from land surface models, the predictions are often poor due to inadequa...
Real time and accurate measurement of sub-surface soil moisture and nutrients is critical for agricultural and environmental studies. This paper presents a novel on-board solution for a robust, accurate and self-calibrating soil moisture and nutrient sensor with inbuilt wireless transmission and reception capability that makes it ideally suited to act as a node in a network spread over a large ...
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