نتایج جستجو برای: moisture variation

تعداد نتایج: 333904  

2013
Y. Gao

Spatial and temporal variation in soil moisture plays a significant role in establishing efficient irrigation scheduling, climate change prediction, and sustainable land and water management. Passive microwave remote sensing at L-band is widely recognised as the preferred technique to measure surface soil moisture globally, with spatial resolution ranging from 40-100km. However, passive microwa...

Journal: :Poultry science 2001
M Qiao D L Fletcher D P Smith J K Northcutt

The relationship between broiler breast meat color and pH, moisture content, water-holding capacity (WHC), and emulsification capacity (EC) was investigated. In each of three replicate trials, fillets were collected from three different commercial processing plants according to breast meat lightness (L*) values as follows: lighter than normal (light, L* > 53), normal (48 < L* < 53), and darker ...

Journal: :Science 2004
Randal D Koster Paul A Dirmeyer Zhichang Guo Gordon Bonan Edmond Chan Peter Cox C T Gordon Shinjiro Kanae Eva Kowalczyk David Lawrence Ping Liu Cheng-Hsuan Lu Sergey Malyshev Bryant McAvaney Ken Mitchell David Mocko Taikan Oki Keith Oleson Andrew Pitman Y C Sud Christopher M Taylor Diana Verseghy Ratko Vasic Yongkang Xue Tomohito Yamada

Previous estimates of land-atmosphere interaction (the impact of soil moisture on precipitation) have been limited by a lack of observational data and by the model dependence of computational estimates. To counter the second limitation, a dozen climate-modeling groups have recently performed the same highly controlled numerical experiment as part of a coordinated comparison project. This allows...

2003
Chih-Huang Weng Pen-Chi Chiang

Bricks manufactured from dried sludge collected from an industrial wastewater treatment plant were investigated. Results of tests indicated that the sludge proportion and the firing temperature were the two key factors determining the brick quality. Increasing the sludge content results in a decrease of brick shrinkage, water absorption, and compressive strength. Results also showed that the br...

1999
MELANY C. FISK STEVEN K. SCHMIDT TIMOTHY R. SEASTEDT

Topography controls snowpack accumulation and hence growing-season length, soil water availability, and the distribution of plant communities in the Colorado Front Range alpine. Nutrient cycles in such an environment are likely to be regulated by interactions between topographically determined climate and plant species composition. We investigated variation in plant and soil components of inter...

Shahram Karimi-Googhari

Rainfall and evapotranspiration are the two most popular climatic factors which have crucial function on agricultural production. Rainfall can be directly measured easily in an area but evapotranspiration is estimated from weather data. In this study reference evapotranspiration ETo was estimated using Penman–Monteith equation. Monthly rainfall and evapotarnspiration were plotted and compared i...

1998
T. J. Siebenmorgen A. A. Perdon X. Chen A. Mauromoustakos

Cereal Chem. 75(1):129–136 Several varieties of rough rice that were either stored for an extended period of time or freshly harvested were conditioned to initial moisture contents ranging from 10 to 17%. After the individual kernel moisture content distributions were measured, the samples were soaked in water at temperatures ranging from 10 to 40°C. The samples were then dried and milled. The ...

Journal: :پژوهش های تولید گیاهی 0

in order to have a successful breeding program, it is important to determine the relationship among the traits. this study was conducted at research farm of isfahan university of technology to evaluate relationships among some of the agronomic and physiological traits and grain yield of ten bread wheat cultivars in optimum and stress moisture (irrigation after 70±3 and 130±3 mm evaporation from...

Journal: :مهندسی بیوسیستم ایران 0
سیداحمد میره ای استادیار، دانشکده کشاورزی، دانشگاه صنعتی اصفهان سیدسعید محتسبی استادیار، دانشکده کشاورزی، دانشگاه صنعتی اصفهان مرتضی صادقی استاد، دانشکده مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران شاهین رفیعی استاد، دانشکده مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

a non-destructive, rapid and low-cost determination of date fruit moisture content is one of the most determining factors in maturity assessment and processing of this valuable product. on the other hand, the potential of near infrared (nir) spectroscopy in nondestructive internal quality evaluation of agricultural products has been proved throughout several studies. in this research, three mod...

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