Πλοήγηση ανά Θέμα "numerical model"
Αποτελέσματα 21-40 από 54
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Factors associated with healthcare workers’ (HCWs) acceptance of COVID-19 vaccinations and indications of a role model towards population vaccinations from a cross-sectional survey in Greece, may 2021
(2021)A Knowledge, Attitudes and Practices (KAP) study was conducted at the end of May 2021 engaging 1456 healthcare workers (HCWs) from 20 hospitals throughout Greece. Acceptance of vaccination against coronavirus disease 2019 ... -
Fatigue resistance of welded steel tubular X-joints
(2020)High-cycle fatigue experiments are performed on welded tubular steel X-joints, with braces and chord of equal diameter. They are scaled-down joints, used extensively in offshore wind platforms. Three different welding ... -
Greenhouse microclimate and dehumidification effectiveness under different ventilator configurations
(2007)In this paper, the efficiency of two different greenhouse ventilation opening configurations on greenhouse microclimate during dehumidification process with simultaneously heating and ventilation was analysed by means of ... -
Groundwater modeling and management in a complex lake-aquifer system
(2007)In this paper, the hydrogeologic analysis and the development of a numerical model for the simulation of a complex system of aquifers in Northern Greece are presented. The study area faces a severe environmental danger as ... -
A homogenization model of the Voigt type for skeletal muscle
(2017)A three-dimensional constitutive model for skeletal muscle incorporating microstructural characteristics is developed and numerically implemented in a general purpose finite element program. The proposed model takes into ... -
Mathematical modeling of trophic state and nutrient flows of Lake Karla using the PCLake model
(2015)In the present article, we simulate Lake Karla, an important natural ecosystem under restoration in Greece, operating also as a reservoir. The lake trophic state is characterized as hypertrophic with the expected negative ... -
Measurement and evaluation of multi-function parallel network hierarchical DEA systems
(2022)Many organisations are composed of multiple departments connected either in series or in parallel, which may be further decomposed into a number of functions arranged in a hierarchical structure. Several researchers have ... -
Microclimate improvement of Inner-city urban areas in a Mediterranean coastal city
(2017)This paper investigates urban bioclimatic interventions in the central area of a coastal medium-sized city in Greece. Two urban blocks typical of the urban fabric of the city center and a neighborhood of 38 urban blocks ... -
Mobile vehicle emission inspection service optimization: a flow intercepting location model and application
(2020)Emission screening and control for motorized traffic is mandatory in most countries worldwide. However, there may be cases that periodic inspections in permanent establishments may be inefficient and fail to enforce emission ... -
Modelling of infiltration using artificial intelligence techniques in semi-arid Iran
(2019)Infiltration plays a fundamental role in streamflow, groundwater recharge, subsurface flow, and surface and subsurface water quality and quantity. In this study, adaptive neuro-fuzzy inference system (ANFIS), support vector ... -
Monitoring, modeling, and assessment of water quality and quantity in River Pinios, using ARIMA models
(2018)The purpose of this study is to analyze surface water quality and discharge data samples from River Pinios at Region of Thessaly, Central Greece. The statistical samples of each one of the variables consisted of a maximum ... -
Morphological and free amino acid profile variability, as a tool for stock identification among farmed rainbow trout Oncorhynchus mykiss of different origin
(2018)As a tool for stock identification the body morphology and the free amino acid (FAA) profile variability were determined among farmed rainbow trout Oncorhynchus mykiss (Walbaum 1792) from different geographical areas ... -
Numerical Evaluation of Pile Response Under Combined Lateral and Axial Loading
(2018)Piled foundations are frequently subjected to simultaneous axial and lateral loadings. However, the interaction effects of the one loading on the other are, in most cases, disregarded for the sake of simplicity. With the ... -
On-Farm Evaluation of Variable Rate Fertilizer Applications Using Yield-Based Mathematical Formulae in a Greek Apple Orchard
(2020)The objectives of this study were to compare variable rate and uniform fertilizer applications in apple (Malus domestica Borkh.) and its effect on production and economic return. In the study, 59.6% and 63.4% less fertilizer ... -
Optimal assignment of aircrew trainees to simulator and classroom training sessions subject to seniority and preference restrictions
(2017)We develop an integer programming model and an exact solution methodology for assigning aircrew members to training sessions which they need to attend in order to fulfill the requirements for renewal of their flight ... -
Optimal sensor placement for artificialA swimmers
(2019)Natural swimmers rely for their survival on sensors that gather information from the environment and guide their actions. The spatial organization of these sensors, such as the visual fish system and lateral line, suggests ... -
Optimum design of the entrance of a fishpond laterally to the main stream of an open channel
(2017)In this study, the optimum design of the entrance of a fishpond laterally to the main flow of an open channel was investigated numerically and experimentally. The flow characteristic measurements were realized with the PIV ... -
Permanent earthquake-induced actions in buried pipelines: Numerical modeling and experimental verification
(2018)Buried pipelines are often constructed in seismic and other geohazard areas, where severe ground deformations may induce severe strains in the pipeline. Calculation of those strains is essential for assessing pipeline ... -
Predicting the outcome of plans: Retrospect and prospects of the use of models in planning
(2010)A planner who claims the quality and assets of his or her plans must be able to justify or even prove their anticipated outcomes. In the midst of the conflicting and sometimes contrasting views of how planning should be ... -
Random forest, M5P and regression analysis to estimate the field unsaturated hydraulic conductivity
(2019)Hydraulic conductivity of soil reveals its influencing role in the studies related to management of surface and subsurface flow, e.g. irrigation and drainage projects, and solute mass transport models. Direct measurements ...