نتایج جستجو برای: summation of hourly
تعداد نتایج: 21165113 فیلتر نتایج به سال:
abstract in recent years, automatic weather stations have been widely used for recording meteorological data in different time scales. therefore the accurate estimation of eto by combination equations can be evaluated using these set of short time scales data. daily eto can also be calculated by summation of hourly eto values. the purpose of this study is to compare the eto values estimated by ...
abstract potential evapotranspiration is one of basic parameter in hydrologic cycle that should be estimate in irrigation design and scheduling, watershed hydrology studies. many applications in diverse disciplines require estimates of evapotranspiration (et) at hourly or smaller time steps. the primary objectives of this study were to compare the american society of civil engineers (asce) and ...
Hourly solar radiation information is necessary to increase the effectiveness of photovoltaic (PV) energy systems. However, compared with daily average radiation, measurement hourly much less available. In this study, a multilayer perceptron artificial neural network based on proposed estimate amount radiation. The method also relies location PV system, hour when needed, and month needed. Two s...
Considering the effect of wave on marine activities in Chabahar, different factors influencing the wave height were considered in the present study. For this purpose, the daily data of the year 2007-2011 and hourly data consisting of two month data of the year 2006 were employed. The results of the proposed method were compared with the results of the fuzzy logic based on PSO algorithm. The Mon...
In this study, the Penman-Monteith methods proposed by the Food and Agriculture Organization (FAO-56) and American Society of Civil Engineers (ASCE) were used for hourly ETo estimation under the semiarid climate of Kerman, Iran. Hourly ETo estimations obtained from the proposed methods were compared with measured ETo values by using a large weighing electronic lysimeter during April to Septembe...
In secure multiparty computation (SMC), a group of users jointly and securely computes a mathematical function on their private inputs, such that the privacy of their private inputs will be preserved. One of the widely used applications of SMC is the secure multiparty summation which securely computes the summation value of the users’ private inputs. In this paper, we consider a secure multipar...
In recent years, more than 50 million advanced (smart) metering infrastructure units have been installed by the U.S electric utilities. Although, smart metering can provide hourly or sub-hourly customer load, it has failed to directly benefit and provide actionable information to consumers and engage them in energy savings. Using nonintrusive load monitoring techniques, the smart metering data ...
abstract evapotranspiration as one of the most important components of the hydrologic cycle, plays a key role in water resources management, crop yield simulation and irrigation scheduling. therefore, presenting a low cost and precision model is very essential for calculations of hourly eto. although, there are empirical formulas, their performances are not all satisfactory due to the complicat...
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