نتایج جستجو برای: moisture control

تعداد نتایج: 1364350  

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...

Journal: :Bioresource technology 2012
Lu Cai Ding Gao Tong-Bin Chen Hong-Tao Liu Guo-Di Zheng Qi-Wei Yang

The variation of moisture during sewage sludge bio-drying was investigated. In situ measurements were conducted to monitor the bulk moisture and water vapor, while the moisture content, water generation, water evaporation and aeration water input of the bio-drying bulk were calculated based on the water mass balance. The moisture in the sewage sludge bio-drying material decreased from 66% to 54...

2009
Doug Karcher Mike Richardson Aaron Patton

It is not clear how various wetting agent products affect moisture distribution throughout sand-based putting green rootzones. The objective of this research was to determine how localized dry spot (LDS) incidence, and soil moisture values and uniformity were affected by the application of five commercially available wetting agents. Wetting agents were applied during the 2008 growing season and...

2010
Haifeng Li Fanjiang Zeng Dongwei Gui Jiaqiang Lei

Cele Oasis on the southern edge of Tarim Basin was used to investigate the impact of human activity on the soil environment of the oasis–desert ecotone during the oasis expansion process. Since farmland is extending into the oasis–desert ecotone during oasis expansion, reclaimed farmland and control plots within the ecotone were investigated. The variations in soil moisture, soil nutrients and ...

2002
Paul W. Adams Alan L. Flint

Adams, P.W., Flint, A.L. and Fredriksen, R.L., 1991. Long-term patterns in soil moisture and revegetation after a clearcut of a Douglas-fir forest in Oregon. For. Ecol..~lanage., 41: 249-263. Soil moisture levels during 1960-1980 were compared for two areas within a 101 ha watershed in the Oregon Cascade Range. In winter 1962-1963, the old-growth Douglas-fir (Pseudotsuga rnenziesii (Mirb.) Fran...

2006
Minha Choi Jennifer M. Jacobs Michael H. Cosh

[1] This study identifies soil moisture spatial variability patterns using measurements across different extents (i.e., field, watershed, and basin) and depths (i.e., from surface to root zone profile) from 18 different soil moisture field experiments. The spatial variability patterns are well represented by negative exponential functions between the mean and the coefficient of variation of soi...

Journal: :Environmental Modelling and Software 2009
Yeonjeong Park Jeff S. Shamma Thomas C. Harmon

The capacity to adaptively manage irrigation and associated contaminant transport is desirable from the perspectives of water conservation, groundwater quality protection, and other concerns. This paper introduces the application of a feedback-control strategy known as Receding Horizon Control (RHC) to the problem of irrigation management. The RHC method incorporates sensor measurements, predic...

2007
Feike A. Dijkstra Weixin Cheng

While it is well known that soil moisture directly affects microbial activity and soil organic matter (SOM) decomposition, it is unclear if the presence of plants alters these effects through rhizosphere processes. We studied soil moisture effects on SOM decomposition with and without sunflower and soybean. Plants were grown in two different soil types with soil moisture contents of 45% and 85%...

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