A multi-factor integrated method of calculation unit delineation for hydrological modeling in large mountainous basins

2021 ◽  
pp. 126180
Author(s):  
Bu Li ◽  
Xing Zhou ◽  
Guangheng Ni ◽  
Xuejian Cao ◽  
Fuqiang Tian ◽  
...  
Keyword(s):  
Hydrological Modeling ◽  
Method Of Calculation ◽  
Integrated Method ◽  
Calculation Unit

scholarly journals Effects of Climate Change and Human Activities on Surface Runoff in the Luan River Basin

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Sidong Zeng ◽  
Chesheng Zhan ◽  
Fubao Sun ◽  
Hong Du ◽  
Feiyu Wang
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Human Activities ◽  
Surface Runoff ◽  
Hydrological Modeling ◽  
Assessment Tool ◽  
Integrated Method ◽  
Climate Elasticity ◽  
Runoff Change ◽  
Runoff Changes

Quantifying the effects of climate change and human activities on runoff changes is the focus of climate change and hydrological research. This paper presents an integrated method employing the Budyko-based Fu model, hydrological modeling, and climate elasticity approaches to separate the effects of the two driving factors on surface runoff in the Luan River basin, China. The Budyko-based Fu model and the double mass curve method are used to analyze runoff changes during the period 1958~2009. Then two types of hydrological models (the distributed Soil and Water Assessment Tool model and the lumped SIMHYD model) and seven climate elasticity methods (including a nonparametric method and six Budyko-based methods) are applied to estimate the contributions of climate change and human activities to runoff change. The results show that all quantification methods are effective, and the results obtained by the nine methods are generally consistent. During the study period, the effects of climate change on runoff change accounted for 28.3~46.8% while those of human activities contributed with 53.2~71.7%, indicating that both factors have significant effects on the runoff decline in the basin, and that the effects of human activities are relatively stronger than those of climate change.

387: The Optimal Timing, Cutoff and Method of Calculation of Preoperative PSA Velocity to Predict Relapse after Prostatectomy: A Report from Search

2007 ◽  
Vol 177 (4S) ◽  
pp. 128-129
Author(s):  
Christopher R. King ◽  
Stephen J. Freedland ◽  
Martha K. Terris ◽  
William J. Aronson ◽  
Christopher J. Kane ◽  
...  
Keyword(s):  
Optimal Timing ◽  
Method Of Calculation ◽  
Psa Velocity

ALTERNATIF PERHITUNGAN RETURN SHAHIBUL MAL PADA SKEMA MUDHARABAH BANK SYARIAH

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Refky Fielnanda
Keyword(s):  
Rapid Development ◽  
Islamic Banking ◽  
Islamic Banks ◽  
Theoretical Level ◽  
Method Of Calculation ◽  
Islamic Bank ◽  
Representative Office ◽  
Operational Practices ◽  
Computerized System ◽  
Practical Level

Abstract: The rapid development of the number of islamic banks should be balanced with the availability of infrastructure to carry out daily operational practices. The operational tools include hardware as like as representative office, computerized system, reliable human resources and software as like as method, culture and financial and islamic banking knowledge. In terms of development of Islamic finance is the paper "Alternative Calculation of Return Shahibul Mal on Mudharabah Scheme on Bank Syariah" was written. During this calculation of return shahibul mal has not been standardized in a formula, thus causing two serious effects. First, in the theoretical level, the formula has not yet created a difficulty. Secondly, in practical level, the formula is not impressive enough to recalculate the complexity of return calculations obtained by shahibul mall, causing laziness of the community using the services of islamic bank. This paper using mathematical and arithmetic equations with the help of modeling made by the author to refine and improve the method of calculation that has been available. The purpose of this paper is to create a standard formula that facilitates the calculation of return earned by a shahibul mal in a mudaraba scheme in a islamic bank.  

Daylight in Underground Spaces

2018 ◽  
pp. 156-161
Author(s):  
Alexei K. Solovyov
Keyword(s):  
Light Guide ◽  
Heat Losses ◽  
Internal Environment ◽  
Method Of Calculation ◽  
Natural Lighting ◽  
Different Depths ◽  
The Common ◽  
Different Diameters

Underground spaces in town centres present a big attraction for investors. However, they put special requirements to the internal environment. Those requirements can be fulfilled by means of daylighting. Examples of lighting of underground spaces are discussed. It is shown that the common systems of natural lighting are not always possible to use and cause big heat losses. Hollow light guide pipes allow avoid the shortcomings of common daylight systems. Method of calculation of daylight factors from hollow light guide pipes is shown. The results of calculation of daylight factors under the light guide pipes of different diameters in the different depths are presented.

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