نتایج جستجو برای: 69 sensor in 5 moisture levels 21

تعداد نتایج: 17329672  

2013
Luzius Matile Roman Berger Daniel Wächter Rolf Krebs

Soil moisture sensors can help to reduce the amount of water needed for irrigation. In this paper we describe the PlantCare soil moisture sensor as a new type of heat dissipation sensor, its calibration and the correction for temperature changes. With the PlantCare sensor it is possible to measure the matric potential indirectly to monitor or control irrigation. This sensor is based on thermal ...

ژورنال: علوم آب و خاک 2006
مجید سلیمانی, , محمد شاهدی, ,

Isotherm curves are useful for the designing of dryer as well as controling of the seed moisture content during storage and drying process. To study the curves, this research was performed on the basis of two factorial experiments including three factors: (1) hybrid at two levels (Three Way Cross 647 and Single Cross 704) (2) temperature at 6 levels (from 5 to 55°C) and (3) Relative Humidity (R...

ژورنال: بوم شناسی آبزیان 2016

This study aimed to determine the fat requirement and effect of dietary fat levels on growth and body composition indices of Bester (Huso huso ♀ × Acipenser ruthenus ♂) juveniles( 200.3 ± 2 g) in winter feeding. Fish were fed by 5 isonitrogenous diets (40% crude protein) with different fat levels including 10, 13, 16, 19 and 22%, 3 times daily according to the satiation for 50 days. The results...

Journal: :ماشین های کشاورزی 0
علیرضا سالاری کیا محمدحسین آق خانی محمدحسین عباسپور فرد

pistachio has a special ranking among iranian agricultural products. iran is known as the largest producer and exporter of pistachio in the world. agricultural products are imposed under different thermal treatments during storage and processing. designing all these processes requires thermal parameters of the products such as specific heat capacity. regarding the importance of pistachio proces...

Journal: :مهندسی بیوسیستم ایران 0
محمدحسین کیانمهر دانشیار، پردیس ابوریحان سیدرضا حسن بیگی دانشیار، پردیس ابوریحان سید حبیب اله هاشمی فرد دهکردی دانشجوی کاشناسی ارشد، پردیس ابوریحان

to design the equipment and facilities for preservation, storage and processing of pomegranate, it is necessary to know the specific heat and thermal conductivity of the fruit components. the specific heat of exocarp, mesocarp and of seeds of pomegranate were assessed at three moisture content levels (30, 50 and 76% for seed and mesocarp; 15, 35 and 52% for exocarp) and at four temperature leve...

2001
Haowen Chan Adrian Perrig

S ensor networks offer economically viable solutions for a variety of applications. For example, current implementations monitor factory instrumentation, pollution levels, freeway traffic, and the structural integrity of buildings. Other applications include climate sensing and control in office buildings and home environmental sensing systems for temperature, light, moisture, and motion. Senso...

Journal: :Bautechnik 2021

BautechnikVolume 98, Issue 5 InhaltFree Access Inhalt: Bautechnik 5/21 First published: 11 May 2021 https://doi.org/10.1002/bate.202170502AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms and Conditions of Use check box below share version article.I have read accept the Wiley Online Library...

Journal: :پژوهش آب در کشاورزی 0

an experiment was conducted in 2011 to evaluate the effect of weed interference on sunflower yield in deficit irrigation and to study the grass and broadleaf weeds growth at different moisture condition. the experiment was arranged as factorial, randomized complete blocks with four replicates per treatment. treatments included different moisture conditions [40%, 60%, 80%, and 100 percent of cro...

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...

Journal: :Bautechnik 2021

BautechnikVolume 98, Issue 5 TitelbildFree Access Titelbild: Bautechnik 5/21 First published: 11 May 2021 https://doi.org/10.1002/bate.202170501AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms and Conditions of Use check box below share version article.I have read accept the Wiley Online L...

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