نتایج جستجو برای: soil management equipment
تعداد نتایج: 1080471 فیلتر نتایج به سال:
the aim of designing the education spaces is to providing the required spatial relationships for education processes. it means that the spaces and equipment which are required in every field, how and by the which discipline thy have been arranged to offer the final aim of education in advance, is the achievements of providing the education spaces management. the purpose of study is to evaluate ...
Harvest traffic with heavy equipment causes damage to forest soils. Whereas increased soil damage has been reported with increasing harvest equipment traffic and on increasing slope gradients, it is unclear how much soil damage is caused by different directions of skidding. We examined the effects of traffic frequency, skid trail slope and skidding direction on the dry bulk density and total po...
Introduction: The importance of medical equipments in preventive, diagnostic, treatment, and medical education and also need to their development are evident. Evidences show that with no control and managing for equipments maintenance, leads to poor and ineffective performances. Control and management of medical equipment to accede the rising lifetime of medical equipment, decrease of cost cont...
This paper presents a very accurate sensor for the measurement of the moisture of undisturbed soil samples. The sensor relies on accurate estimation of the permittivity which is performed independently of the soil type, and a subsequent calibration. The sensor is designed as an upgrade of the conventional soil sampling equipment used in agriculture--the Kopecky cylinder. The detailed descriptio...
the present study aimed at investigating the relationship between iranian efl teachers’ classroom management orientations and their teaching styles. additionally, the difference between male and female teachers’ teaching styles and classroom management orientations and their relationship with experience and age were explored. three hundred efl teachers filled in attitudes and beliefs on classro...
Background: Air emergency medical services provide advanced medical care to patients and critically injured as soon as possible to reduce injuries and casualties. In this study, the status of the Medical Emergency and Accident Management Center in Yazd Province in terms of the necessary standards for air emergencies was investigated and compared with existing standards. Materials and Methods:...
Yield monitors are a recent development in agricultural machinery that allow grain producers to assess the effects of weather, soil properties, and management on grain production. They are a logical first step for those who want to begin practicing sitespecific crop management or “precision agriculture.” The accuracy of these devices depends on appropriate installation, calibration, and operati...
This paper applies an option-pricing model to analyze the impact of uncertainty about output prices and expectations of declining fixed costs on the optimal timing of investment in site-specific crop management (SSCM). It also analyzes the extent to which the level of spatial variability in soil conditions can mitigate the value of waiting to invest in SSCM and influence the optimal timing of a...
a major concern of farmers is deterioration of the soil and water resources. soil management is the most direct way for mankind to interfere with natural processes that may either intensify or hinder soil degradation. fractal geometry has been widely used to describe heterogeneity in a wide range of natural processes, including physical systems of soil. in this study, the effects of different m...
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