نتایج جستجو برای: system dynamics hydrological model

تعداد نتایج: 4129631  

This work investigates the effect of different inventory policies of a supply chain model using the system dynamics approach which belongs to the class of Vendor Managed Inventory (VMI), automatic pipeline, inventory and order based production control systems (VMI-APIOBPCS). This work helps management to investigate the effect of different policies such as adding the VMI system or third party l...

Journal: :Proceedings of the Japan Society of Civil Engineers 1982

2008
M. Fink P. Krause

The scientific sound definition of measures to achieve the goals of the EU water framework directive (WFD) acquires spatially distributed analyses of the water and substance dynamics in mesoto macro-scale catchments. For this purpose, modelling tools or systems are needed which are robust and fast enough to be applied on such scales, but which are also able to simulate the impact of changes on ...

Journal: :اکو هیدرولوژی 0
محمد رحمتی کارشناس ارشد مهندسی آبخیزداری، دانشکدة منابع طبیعی، دانشگاه تربیت مدرس، نور حمید رضا مرادی دانشیار دانشکدة منابع طبیعی، دانشگاه تربیت مدرس، نور حاجی کریمی دانشیار، دانشکدة کشاورزی، دانشگاه ایلام خلیل جلیلی دانشجوی دکتری مهندسی آبخیزداری، دانشکدة منابع طبیعی، دانشگاه تربیت مدرس، نور

abstract one of the importance groundwater resources in kermanshah province is karstic aquifer. this study aimed to investigate the role of development of karstic aquifer in karst springs hydrological properties have been conducted. the studies areas are two karst aquifers include the bistoon-parau and patagh mountain in kermanshah province. in the bistoon-parau region we used of bistoon, berke...

2014
D. D. Alexakis M. G. Grillakis A. G. Koutroulis A. Agapiou K. Themistocleous I. K. Tsanis S. Michaelides D. G. Hadjimitsis

Floods are one of the most common natural disasters worldwide, leading to economic losses and loss of human lives. This paper highlights the hydrological effects of multi-temporal land use changes in flood hazard within the Yialias catchment area, located in central Cyprus. A calibrated hydrological model was firstly developed to describe the hydrological processes and internal basin dynamics o...

ژورنال: بیمارستان 2019

Background: In service organizations such as hospitals, human resources (HR) play a key role in the quality of service delivery. Lack of a systemic attitude in terms of system dynamics, HR planning have been somewhat distant from reality. In order to solve such a problem, this study aimed to modeling the dynamics of human resources capacity management system in healthcare services.   Material...

2012
Valérie Soti Annelise Tran Pascal Degenne Véronique Chevalier Danny Lo Seen Yaya Thiongane Mawlouth Diallo Jean-François Guégan Didier Fontenille

BACKGROUND Rift Valley fever (RVF) is a vector-borne viral zoonosis of increasing global importance. RVF virus (RVFV) is transmitted either through exposure to infected animals or through bites from different species of infected mosquitoes, mainly of Aedes and Culex genera. These mosquitoes are very sensitive to environmental conditions, which may determine their presence, biology, and abundanc...

Journal: :Environmental Modelling and Software 2008
Rajesh Raj Shrestha Michael Rode

Multi-objective evaluation of distributed hydrological models enables an analysis of prediction behaviour of individual sub-systems within a catchment. The aim of this paper is to demonstrate an application of multi-response, multisite calibration strategy for a distributed hydrological model, so that model limitations can be identified and subsequently improved. The study was carried out for c...

Journal: :Water 2021

We describe how a bog hydrology simulation model, developed in the System Dynamics environment, predicts changes groundwater levels that result from drainage ditch closure and partial thinning of surrounding forest stand. Five plots were selected an area was subjected to such ecological restoration, observed compared with simulated ones. Across plots, mean difference between curves varied 0.88 ...

Journal: :journal of water sciences research 2010
n faghihi f kave h babazadeh

regarding to increased use of groundwater resources, it seems necessary to have more accurate knowledge of characteristics of aquifers in order to improved usage and accurate management of these resources. in this study, we simulated groundwater flow of qazvin aquifer usingvisual modflow model, collecting data and statistics, as well as using different studies. the simulation model has operated...

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