نتایج جستجو برای: based on annual averages
تعداد نتایج: 9171773 فیلتر نتایج به سال:
Desertification is currently a big problem in many countries, especially in developing countries, and includes natural processes and improper human activities. The present study was conducted to evaluate the potential of desertification with an emphasis on water, climate and soil criteria using IMDPA Model in Abbas plain, Ilam province with an area about 18028.8 hectare. Geometric averages for ...
Tropospheric methane (CH4) shows large inter-annual variability in its growth rates on top of decadal trends, which is usually interpreted as changes sources or sinks. The contribution the stratosphere-troposphere exchange (STE) often omitted such analyses. Here, we quantify annual anomalies CH4 fluxes using varied model- observation-based methods. Globally, (standard deviation) this flux durin...
A consistently processed annual global nighttime lights time series (2012–2019) was produced using monthly cloud-free radiance averages made from low light imaging day/night band (DNB) data collected by the NASA/NOAA Visible Infrared Imaging Radiometer Suite (VIIRS). The processing steps are modified original methods developed to produce products nightly data. Only two years of VIIRS (VNL) were...
In a recent pilot study, errors in forecasts of future returns showed little differences when arithmetic and geometric mean calculations served as the basis for the projections. Using annual returns on the DJIA and S&P for 1954 to 2007, 1-year-, 5-year-ahead, and 10-year-ahead forecasts were made based on 5-, 10-, 15-, and 20-year histories based on both arithmetic and geometric averages. This ...
the purpose of the present study was to investigate the effect of task-based instruction of vocabulary on the receptive and oral productive acquisition of english vocabulary and compare the results with those obtained from the traditional method. the method and procedure applied in this study was as follows: after the implementation of opt, a group of sixty female students were chosen. the stu...
the present study sought to examine whether a task-based approach could have an impact on raising awareness of collocations. moreover, it sought to investigate the facilitative role of consciousness-raising tasks of collocations in the communicative instances of use. to this end, 68 intermediate learners of english were selected via a placement test. the participants were taught with classroom ...
Abstract The issues of determining the quality wastewater are relevant for various countries within framework environmental regulation. methods used calculating standards discharged into reservoirs have different degrees justification and, thus, can cause systemic errors in analysis treated wastewater. Another reason possible inconsistencies is unrepresentativeness analytical studies and sampli...
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