نتایج جستجو برای: moisture measurement

تعداد نتایج: 478666  

پایان نامه :0 1370

all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...

2009
J. P. Walker

The upcoming Soil Moisture and Ocean Salinity (SMOS) mission of the European Space Agency will be the first satellite dedicated to the measurement of soil moisture. It will measure soil moisture for the top 5 cm at a spatial resolution of 35 to 50 km. Comparison of the soil moisture data from SMOS with insitu monitoring network measurements across areas the size of a SMOS footprint will play a ...

1998
J. A. Yeakley W. T. Swank L. W. Swift

Soil moisture gradients along hillslopes in humid watersheds, although indicated by vegetation gradients and by studies using models, have been difficult to confirm empirically. While soil properties and topographic features are the two general physiographic factors controlling soil moisture on hillslopes, studies have shown conflicting results regarding which factor is more important. The rela...

Journal: :journal of agricultural science and technology 0
d. colovic institute of food technology, university of novi sad, bul. cara lazara 1, 21000 novi sad, serbia. r. colovic institute of food technology, university of novi sad, bul. cara lazara 1, 21000 novi sad, serbia. j. levic institute of food technology, university of novi sad, bul. cara lazara 1, 21000 novi sad, serbia. b. ikonic faculty of technology, university of novi sad, bul. cara lazara 1, 21000 novi sad, serbia. d. vukmirovic institute of food technology, university of novi sad, bul. cara lazara 1, 21000 novi sad, serbia. lj. levic faculty of technology, university of novi sad, bul. cara lazara 1, 21000 novi sad, serbia.

the presented study shows a simple way for optimization of extrusion process, which was used for deterioration of cyanogenic glycosides – antinutritive components of linseed, with minimum damage of essential alpha-linolenic acid (ala) at the same time. extrusion of the material was done on a laboratory single screw extruder. content of hydrogen cyanide (hcn) as a measurement of cyanogenic glyco...

2004
J. P. Kerekes

An experiment was performed in Northern Maine recently to evaluate the use of Synthetic Aperture Radar (SAR) data in the measurement of soil moisture content in small area plots with varying surface cover and at various subsurface depths. Ground preparation efforts involved defining six contiguous 30 m x 30 m plots with three surface cover conditions: bare tilled soil, short grass and forest. F...

2002
Jeffrey Walker Paul Houser

Knowledge of soil moisture content in the root zone is important throughout a wide range of environmental applications, yet adequate monitoring or modelling of this parameter, particularly at larger spatial scales, is difficult due to its high spatial and temporal variability. To overcome the land surface model limits on soil moisture estimation accuracy, point measurement spatial coverage limi...

2016
John Kerekes Steve Crocker

An experiment was performed in Northern Maine recently to evaluate the use of Synthetic Aperture Radar (SAR) data in the measurement of soil moisture content in small area plots with varying surface cover and at various subsurface depths. Ground preparation efforts involved defining six contiguous 30 m x 30 m plots with three surface cover conditions: bare tilled soil, short grass and forest. F...

2012
M. Zreda W. J. Shuttleworth X. Zeng

The newly-developed cosmic-ray method for measuring area-average soil moisture at the hectometer horizontal scale is being implemented in the COsmic-ray Soil Moisture Observing System (or the COSMOS). The stationary cosmic-ray soil moisture probe measures the neutrons that are generated by cosmic rays within air and soil and other materials, moderated by mainly hydrogen atoms located primarily ...

Journal: :IEEJ Transactions on Electronics, Information and Systems 2004

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید