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Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

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Статті в журналах з теми "Water resources development Computer simulation"

1

Wicaksono, Albert, Gimoon Jeong, and Doosun Kang. "Water, energy, and food nexus: review of global implementation and simulation model development." Water Policy 19, no. 3 (March 13, 2017): 440–62. http://dx.doi.org/10.2166/wp.2017.214.

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Анотація:
Water, energy, and food (WEF) have complex interconnections. Water is required to produce energy, while energy is needed for water extraction, treatment, and distribution. The food sector requires water and energy to produce food products, while fertilizer and pesticide from farmland have a negative impact on water quality; however, biomass is a potential alternative energy source. Understanding these interconnections will help determine the developmental framework that connects all of the elements. Some global regions have implemented a variety of sustainable management concepts to manage the natural resources, however, mainly for an individual resource. Furthermore, various computer models have been developed to estimate the interdependency of each resource and to quantify future requirements of WEF; the limitations of current models have opened opportunities for development through the addition of components and features such as feedback analysis, optimization, and visualization. We reviewed the literature to determine the present state of the WEF nexus, especially its global implementation and simulation model. We concluded that the involvement of stakeholders, integration of policies, and development of a nexus simulation model are required for successful implementation of the WEF nexus, which is an emerging issue for a sustainable resources' management.
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2

Lindenschmidt, K. E., F. B. Hesser, and M. Rode. "Integrating water quality models in the High Level Architecture (HLA) environment." Advances in Geosciences 4 (August 9, 2005): 51–56. http://dx.doi.org/10.5194/adgeo-4-51-2005.

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Abstract. HLA (High Level Architecture) is a computer architecture for constructing distributed simulations. It facilitates interoperability among different simulations and simulation types and promotes reuse of simulation software modules. The core of the HLA is the Run-Time Infrastructure (RTI) that provides services to start and stop a simulation execution, to transfer data between interoperating simulations, to control the amount and routing of data that is passed, and to co-ordinate the passage of simulated time among the simulations. The authors are not aware of any HLA applications in the field of water resources management. The development of such a system is underway at the UFZ -Centre for Environmental Research, Germany, in which the simulations of a hydrodynamic model (DYNHYD), eutrophication model (EUTRO) and sediment and micro-pollutant transport model (TOXI) are interlinked and co-ordinated by the HLA RTI environment. This configuration enables extensions such as (i) "cross-model" uncertainty analysis with Monte Carlo Analysis: time synchronisation allows EUTRO and TOXI simulations to be made after each successive simulation time step in DYNHYD, (ii) information transfer from EUTRO to TOXI to compute organic carbon fractions of particulate matter in TOXI, (iii) information transfer from TOXI to EUTRO to compute extinction coefficients in EUTRO and (iv) feedback from water quality simulations to the hydrodynamic modeling.
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3

Wicaksono, Albert, Gimoon Jeong, and Doosun Kang. "Water–Energy–Food Nexus Simulation: An Optimization Approach for Resource Security." Water 11, no. 4 (March 31, 2019): 667. http://dx.doi.org/10.3390/w11040667.

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Анотація:
The water–energy–food nexus (WEF nexus) concept is a novel approach to manage limited resources. Since 2011, a number of studies were conducted to develop computer simulation models quantifying the interlinkage among water, energy, and food sectors. Advancing a nationwide WEF nexus simulation model (WEFSiM) previously developed by the authors, this study proposes an optimization module (WEFSiM-opt) to assist stakeholders in making informed decisions concerning sustainable resource management. Both single- and multi-objective optimization modules were developed to maximize the user reliability index (URI) for water, energy, and food sectors by optimizing the priority index and water allocation decisions. In this study, the developed models were implemented in Korea to determine optimal resource allocation and management decisions under a plausible drought scenario. This study suggests that the optimization approach can advance WEF nexus simulation and provide better solutions for managing limited resources. It is anticipated that the proposed WEFSiM-opt can be utilized as a decision support tool for designing resource management plans.
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4

Balderama, Orlando F. "Development of a decision support system for small reservoir irrigation systems in rainfed and drought prone areas." Water Science and Technology 61, no. 11 (June 1, 2010): 2779–85. http://dx.doi.org/10.2166/wst.2010.193.

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Анотація:
An integrated computer program called Cropping System and Water Management Model (CSWM) with a three-step feature (expert system—simulation—optimization) was developed to address a range of decision support for rainfed farming, i.e. crop selection, scheduling and optimisation. The system was used for agricultural planning with emphasis on sustainable agriculture in the rainfed areas through the use of small farm reservoirs for increased production and resource conservation and management. The application of the model was carried out using crop, soil, and climate and water resource data from the Philippines. Primarily, four sets of data representing the different rainfall classification of the country were collected, analysed, and used as input in the model. Simulations were also done on date of planting, probabilities of wet and dry period and with various capacities of the water reservoir used for supplemental irrigation. Through the analysis, useful information was obtained to determine suitable crops in the region, cropping schedule and pattern appropriate to the specific climate conditions. In addition, optimisation of the use of the land and water resources can be achieved in areas partly irrigated by small reservoirs.
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5

Meng, Ying. "Evaluation of Water Resources Environment and Regional Agricultural Economic Development Based on SAR Imaging Algorithm." Mobile Information Systems 2022 (August 23, 2022): 1–11. http://dx.doi.org/10.1155/2022/9990603.

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Анотація:
Synthetic aperture radar (SAR) is a new high-tech radar that uses SAR principles and pulse compression technology to perform high-resolution imaging of ground targets. Because it is not affected by various factors such as location, time, and climate, it is widely used in the civilian and military fields, bringing huge social and economic benefits. Moreover, the environment of agricultural water resources and the development of regional agricultural economy can be studied using the SAR imaging algorithm. With the serious shortage of water resources and the increase of the world’s population, the use of water resources for agriculture must not only achieve the goal of saving water, but more importantly, achieve efficient production on the premise of saving water. However, the shortage of water resources in China has become a serious constraint on the development of agriculture and rural economy and has become an important factor restricting the sustainable development of agriculture and rural economy. Therefore, the development of efficient and sustainable use of water resources is very important to establish a water-saving society for the sustainable development of China’s economy and society. For the spaceborne SAR system, an azimuth-based multi-channel range ambiguity suppression method is proposed in this chapter. The simulation results show that after adopting the azimuth phase encoding technology, the azimuth spectrum of the signal in the ambiguous area can be moved to suppress the distance ambiguity.
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6

Ke, Wenlan, Yalin Lei, Jinghua Sha, Guofeng Zhang, Jingjing Yan, Xiaoyu Lin, and Xiping Pan. "Dynamic simulation of water resource management focused on water allocation and water reclamation in Chinese mining cities." Water Policy 18, no. 4 (January 5, 2016): 844–61. http://dx.doi.org/10.2166/wp.2016.085.

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Анотація:
Mining cities have undergone the process of extensive exploitation, which always results in a series of water issues. Integrated water resource management is necessary in improving water supply, allocation and quality without damaging economic development. This article constructs a linear optimization model including a ‘Top-Down’ socio-economic mode, and ‘Bottom-Up’ water quality control and water supply–demand modes with integrated water resource management focused on water allocation and water reclamation. Based on computer simulation, the model can propose a water resource management under the constraints of water supply–demand and water quality control, and the model can precisely predict the influences of water resource management on economic development, water utilization and water quality. Taking Ordos, a Chinese national resource city, as a case study, this model addresses a detailed water resource management, including a water allocation plan among industries and water reclamation plan with technologies, selection, arrangement and subsidies. The implementation of water resource management can fulfill multiple objectives on water quantity, water quality and sustainable economic development. This study indicates that water resource management with a comprehensive dynamic model can be a maneuverable approach to realize the sustainable development of economic growth and water resource utilization, as well as formulate the regional development plan.
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7

Ilich, Nesa. "Improvement of the return flow allocation in the Water Resources Management Model of Alberta Environment." Canadian Journal of Civil Engineering 20, no. 4 (August 1, 1993): 613–21. http://dx.doi.org/10.1139/l93-078.

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Анотація:
This paper describes recent developments related to a new return flow algorithm built into the Water Resources Management Model (WRMM) of Alberta Environmental Protection. An earlier return flow allocation method which was used in the WRMM did not always give satisfactory results. It was essential to fix this problem, since correct modelling of the return flows in overall river basin management is of crucial importance. The new return flow algorithm offers more reliable return flow allocation without detrimental effects on the overall model solution. This model is a major river basin planning tool in western Canada used to analyze responses of a river basin to varying operating policies or structural developments. It is a simulation model with a nested optimization subprogram. As a deterministic, steady state, and surface water allocation model, it normally relies on the estimates of natural flows and water demands throughout the river basin. The WRMM can provide quick simulations of any river basin with any number of components within a microcomputer environment. The model is used in ongoing river basin management studies in Alberta and other western provinces in Canada. Key words: water management, computer modelling, simulation, optimization, irrigation.
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8

Sánchez-Román, Rodrigo Máximo, Marcos Vinicius Folegatti, Alba María Guadalupe Orellana González, and Rogério Teixeira da Silva. "Dynamic systems approach assess and manage water resources in river basins." Scientia Agricola 66, no. 4 (August 2009): 427–35. http://dx.doi.org/10.1590/s0103-90162009000400001.

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Анотація:
The Piracicaba, Capivari and Jundiaí River Basins (RB-PCJ) are located in the States of Minas Gerais and São Paulo, Brazil. By 2005, 5.8% of Brazil's General National Product-GNP was produced there. Such economic development has created a huge demand for water resources. The availability of water resources was assessed by running a dynamic systems simulation model to manage these resources in the RB-PCJ (WRM-PCJ), considering five 50-year simulations. WRM-PCJ was developed as a tool to aid the RB-PCJ Watershed Committee. The model computes water supply, demands, and contamination load from several consumers. When considering a Business-as-Usual scenario, by 2054, water demands will have increased up to 76%, 39% of the available water will come from wastewater reuse, and the contamination load will have increased by 91%. The Falkenmark Index started at 1403 m³ person-1 year-1 in 2004, ending at 734 m³ P-1 yr-1 in 2054; the Xu Sustainability Index started at 0.44 and ended at 0.20; and Keller's River Basin Development Phases started as Phase II, and ended at final Phase III, of Augmentation. The three criteria used to evaluate water resources showed that RB-PCJ is at a crucial management turning point. The WRM-PCJ performed well, and proved to be an excellent tool to assess water resources availability.
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9

YANG, ZHIFENG, YONG ZENG, YANPENG CAI, and QIAN TAN. "AN INTEGRATED GAME-THEORY BASED MODEL FOR TRANS-BOUNDARY WATER RESOURCES MANAGEMENT IN NORTH CHINA: A CASE STUDY IN THE GUANTING RESERVOIR BASIN (GRB), BEIJING." International Journal of Software Engineering and Knowledge Engineering 18, no. 04 (June 2008): 461–83. http://dx.doi.org/10.1142/s021819400800374x.

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Анотація:
Water is a fundamental resource in our daily lives and for social development. Currently, water resources are under stressed conditions in north China due to the ongoing growth of demand for water and the frequent occurrences of natural disasters in this area. This problem is further intensified by the deterioration of water quality, which is a side effect of economic development, industrial expansion, and agricultural growth. These problems interconnect with each other, leading to a variety of conflicts over water resources. To resolve such conflicts, a two-person game-theory based model is developed for water resource management in the trans-boundary regions of a river basin. The model is tested on a river basin within this area of China in which water resources are contested. Through the developed model, potential policy alternatives can be generated for water resource management and pollution control within the context of a river basin. Cooperative and/or competitive mechanisms can thus be formulated through competition and cooperation over issues of water quantity and quality among different levels of jurisdictions in the same river basin. Then, Nash Solution is used to solve scenarios of competition and cooperation between the upstream and downstream based on the integration of optimization and simulation models. The developed model and the solution process is then applied to resolve water conflicts between Beijing and Hebei province, which are in the upstream and downstream of the Guanting Reservoir Basin (GRB), respectively, representing two major stakeholders in the contest over water quantity and quality. Non-cooperative and cooperative scenarios for the two-player game scenarios are developed to investigate and compare potential economic benefits of these scenarios. Results indicate that the developed model can be effectively and flexibly employed to resolve water conflicts between upstream and downstream stakeholders in the same river basin. The results can also be used to help formulate economic compensation mechanisms within these jurisdictions.
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10

Hwang, Su-jin, and Chul H. Jo. "Tidal Current Energy Resource Distribution in Korea." Energies 12, no. 22 (November 18, 2019): 4380. http://dx.doi.org/10.3390/en12224380.

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Анотація:
Korea is a very well-known country for having abundant tidal current energy resources. There are many attractive coastal areas for the tidal current power that have very strong currents due to the high tidal range and the acceleration through the narrow channels between islands in the west and south coasts of the Korean peninsula. Recently, the Korean government announced a plan that aims to increase the portion of electricity generated from renewable energy to 20% by 2030. Korea has abundant tidal current energy resources; however, as reliable resource assessment results of tidal current energy are not sufficient, the portion of tidal current power is very small in the plan. Therefore, a reliable resource assessment should be conducted in order to provide a basis for the development plan. This paper describes the resource assessment of tidal current energy in Korea based on the observational data provided by KHOA (Korean Hydrographic and Oceanographic Agency) and numerical simulation of water circulation. As the observational data were unable to present the detailed distribution of the complicated tidal current between islands, numerical simulation of water circulation was used to describe the detailed distribution of tidal current in Incheon-Gyeonggi and Jeollanam-do, where the tidal energy potentials are abundant. The west and south coastal areas of Korea were divided into seven regions according to the administrative district, and the theoretical tidal current potential was calculated using average power intercepted. The results of this research can provide the insight of the tidal current energy development plan in Korea.
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Більше джерел

Дисертації з теми "Water resources development Computer simulation"

1

Mounir, Adil. "Development of a Reservoir System Operation Model for Water Sustainability in the Yaqui River Basin." Ohio University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1513880139368117.

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2

Hu, Zhengyu, and D. Phillip Guertin. "The Effect of GIS Database Grid Size on Hydrologic Simulation Results." Arizona-Nevada Academy of Science, 1991. http://hdl.handle.net/10150/296461.

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Анотація:
From the Proceedings of the 1991 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 20, 1991, Northern Arizona University, Flagstaff, Arizona
The use of geographic information systems (GIS) for assessing the hydrologic effects of management is increasing. In the near future most of our spatial or "mapped" information will come from GIS. The direct linkage of hydrologic simulation models to GIS should make the assessment process more efficient and powerful, allowing managers to quickly evaluate different landscape designs. This study investigates the effect the resolution of GIS databases have on hydrological simulation results from an urban watershed. The hydrologic model used in the study was the Soil Conservation Service Curve Number Model which computes the volume of runoff from rainfall events. A GIS database was created for High School Wash, a urban watershed in Tucson, Arizona. Fifteen rainfall-runoff events were used to test the simulation results. Five different grid sizes, ranging from 25x25 square feet to 300x300 square feet were evaluated. The results indicate that the higher the resolution the better the simulation results. The average ratio of simulated over observed runoff volumes ranged from 0.98 for the 25x25 square feet case to 0.43 for the 300x300 square feet case.
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3

McMahon, Paul Christopher. "Simulation of corn yield by a water management model for a Coastal Plain soil in Virginia." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/53719.

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Анотація:
DRAINMOD, a water management simulation model for artificially-drained soils, was evaluated for a Virginia Coastal Plain soil by comparing predicted and measured water table depths from a subirrigation/controlled drainage site over a period of three years. Water table elevations predicted by the model were in good agreement with measured water table elevation data with an average deviation of 9.47 cm for the three years of record. The YIELD version of DRAINMOD was used to predict corn yield for the subirrigation/controlled drainage site. Average corn yield predictions by the model agreed reasonably well with the observed average corn yield data with relative errors of 19.2, 4.4, and 8.1 percent for 1984, 1985, and 1986, respectively. Additionally, corn yields predicted for a conventional drainage system were considerably lower than those predicted for subirrigation/controlled drainage, reaffirming the need for irrigation of corn in the Coastal Plain region of Virginia. Research results indicate that DRAINMOD is a powerful tool for the design and evaluation of subirrigation/controlled drainage practices in the Virginia Coastal Plain. Simulations were performed for a 20-year period to determine the effects of system design on corn yield. An economic analysis was performed to determine optimal system design for maximizing profits from corn production. A drain spacing of 21.3 m, a drain depth of 110 cm, and a 65 cm weir depth were the design parameters recommended as optimal for maximizing profits from subirrigation/controlled drainage of corn on a Myatt fine sandy loam soil in the Virginia Coastal Plain.
Master of Science
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4

Cadot, Paule-Darly 1960. "Development of a model for design of water harvesting systems in small scale rainfed agriculture." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277109.

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Анотація:
In arid and semi-arid regions, water harvesting systems can augment water supply for crop production purposes. The functioning of this type of system is controlled by three major factors: weather, crop and soil characteristics. In particular, the weather factors vary stochastiscally and thus, need to be predicted on the basis of their probability of occurrence. Furthermore, long-term historical data is scarce in the arid regions. Consequently, the simulation approach is a good alternative for designing the system. This study developed a micro-computer based model, SSWHS89.BAS, for design of small scale water harvesting systems for perennial crops. The model uses elements of a simulation computer program, CLIMATE.BAS (Woolhiser, 1988), to generate daily rainfall, maximum and minimum temperature and radiation data and predicts evapotranspiration and runoff data from a deterministic computer program, PENMNSCS.BAS for the location of interest. The model was used to determine the characteristics of a water harvesting system in a vineyard field at Sonoita, Az.
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5

Pioltine, Victor. "Análise do atendimento às demandas hídricas superficiais no reservatório da usina Bariri (SP) utilizando o simulador computacional Mike Basin." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-04122009-110435/.

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Анотація:
É indiscutível a importância da disponibilidade hídrica tanto quantitativa como qualitativa para o desenvolvimento adequado de determinada região inserida em bacias hidrográficas. Tal desenvolvimento deve ser planejado e administrado visando à minimização dos conflitos ocasionados pelos usos múltiplos da água, de modo que todas as demandas possam ter o máximo de confiabilidade em seus respectivos atendimentos e, também, possa haver a maximização dos benefícios sociais, econômicos e ambientais na região. Diante disso, este trabalho buscou analisar o atendimento às demandas hídricas superficiais para os diversos setores usuários localizados na área de drenagem do reservatório da usina Bariri (SP). Por meio da aplicação do simulador hidrológico MIKE BASIN foi analisado o desempenho do reservatório da usina Bariri em atender às demandas hídricas superficiais para o ano de 2008 e para cenários futuros com anos horizontes de 2010, 2025 e 2050. A partir deste estudo concluiu-se que há volume de água suficiente para atender às demandas hídricas superficiais na região de estudo e também para atender a produção energética na usina Bariri. O software Mike Basin mostrou-se ser uma ferramenta muito útil para a gestão dos recursos hídricos.
It is clear the importance of water availability both qualitative and quantitative for the development of a region inserted into a catchment area. This development must be planned and managed to the minimization of conflicts caused by multiple uses of water so that all demands have the maximum reliability in their care and also may be the maximization of social, economic and environmental in the region. Thus, this study, analyzed the surface water and its demands for different sectors users located in the drainage of the reservoir of the Bariri (SP) power plant. Through the application of hydrological simulation MIKE BASIN was examined system performance in meeting the demands for water current conditions (year 2008) and for future scenarios with years to 2010, 2025 and 2050. From this study, it is concluded that volume of water needed to meet the demands water surface in the region of study and energy production reached its goal in every period simulated.
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6

Ferreira, Antonio de Pádua Scott Alves. "Análise de conflitos de usos múltiplos da água auxiliada por simulação computacional: bacia do rio Sapucaí - Mirim/Grande." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-09062016-092814/.

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Анотація:
Na mesma proporção que fontes de água potável são reduzidas, a competição por elas tem aumentado, conseqüência imediata da expansão de áreas urbanas e de novas demandas agro-industriais. Os conflitos gerados por esta competição tendem a comprometer o desenvolvimento sustentável e o progresso de uma forma geral, uma vez que resultam em perda de eficácia para vultuosos investimentos públicos e privados e em prejuízos para os usuários menos estruturados. Considerando os fatos acima, o objeto deste trabalho é o estabelecimento de cenários de alocação das disponibilidades hídricas entre usuários de água da bacia do Sapucaí-Mirim/Grande, visando determinar a convivência harmoniosa das várias finalidades de uso provenientes do mesmo recurso hídrico. Tal meta poderá ser alcançada através da análise dos indicadores de desempenho - confiabilidade, vulnerabilidade e resiliência - do sistema os quais serão obtidos com o auxílio do modelo de simulação IRAS (Interactive River Aquifer Simulation).
In the same proportion that fresh water sources are been reduced, competition for its has grown, immediate consequence of urban areas expansion and new agroindustrial demands. Conflicts generated by this competition tend to affect the sustainable development and the progress as well, once this competitiveness situation means efficacy loss to large amounts of public and privy investments, and also injuries to less structured users. Considering above facts, the goal of this paperwork is to establish water availability allocation scenarios between Sapucai-Mirim/Grande basin\'s users, aiming to settle a balanced distribution of the several use finalities came from the same water resource. Such goal can be reached through system performance indicators analysis - reliability, vulnerability and resilience - which will be estimated through IRAS simulation model aid.
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7

Polynkin, A., L. Bai, J. F. T. Pittman, J. Sienz, Leigh Mulvaney-Johnson, Elaine C. Brown, A. Dawson, et al. "Water assisted injection moulding: development of insights and predictive capabilities through experiments on instrumented process in parallel with computer simulations." Maney Publishing, 2008. http://hdl.handle.net/10454/3511.

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Анотація:
Yes
An idealised model of core-out in water assisted injection moulding (WAIM) is set up to isolate the effect of cooling by the water on the deposited layer thickness. Based on simulations, this is investigated for a specific case as a function of Pearson number and power law index. It is found that cooling significantly reduces the layer thickness to the extent that a change in the flow regime ahead of the bubble, from bypass to recirculating flow, is possible. For shear thinning melts with high temperature coefficient of viscosity, the simulations show very low layer thickness, which may indicate unfavourable conditions for WAIM. Although in the real moulding situation, other effects will be superimposed on those found here, the results provide new insights into the fundamentals of WAIM. Investigation of other effects characterised by Fourier and Reynolds numbers will be reported subsequently. Some early process measurement results from an experimental WAIM mould are presented. Reductions in residual wall thickness are observed as the water injection set pressure is increased and the duration of water bubble penetration through the melt is determined experimentally. The formation of voids within the residual wall is noted and observed to reduce in severity with increasing water injection pressure. The presence of such voids can be detected by the signature from an infrared temperatures sensor.
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8

Zaini, Raafat Mahmoud. "Modeling Manifest and Latent Structures in a University: Understanding Resources and Dissent Dynamics." Digital WPI, 2017. https://digitalcommons.wpi.edu/etd-dissertations/435.

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Анотація:
Using modeling and computer simulation, this research focuses on studying two different views to organizational design and their implications for performance in the context of academic institutions. One view represents the manifest structure that includes resources (students, faculty, administration, facilities, finances, partners, donors, etc.); the other view represents the latent structure that focuses on dissent. The dissertation addresses the following two questions; 1. What are the tangible dynamic interdependencies constituting the manifest structure within academic institutions and their impact on performance? 2. What is the impact of the latent structures composed of intangible organizational processes, especially dissent, on performance? The dissertation proposes generic system dynamics simulation models untangling the complexity of the topic by tackling various slices of the problem in separate papers. The models are based on three different theoretical frameworks addressing resources and their composition, dissent, and stakeholder engagement. It is observed that while both the manifest and the latent parts of the university organization impact its performance, the latent part, being invisible, is often ignored. In the long run, the influence of the latent part of the organization can slowly but seriously compromise intangible performances components like quality, reputation, and attractiveness. When the manifest part of the organization is dysfunctional, its tangible performance rapidly suffers. The damage control policies will often impact the latent organizational performance leading the institution into a vicious cycle. The presence of time delays in this framework may create an oscillatory behavior that might modulate a growth or decline trend. Performance measures addressing intangible performance components must be factored into the organizational design since faculty, students, and other stakeholders are not only driven by financial rewards, but also by the organizational environment. The research, besides addressing the important question of the role of latent elements in organization design and demonstrating this can be done using system dynamics modeling and computer simulation, should also be of value to the design and management of higher education institutions.
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9

Lingen, Carl, and Nathan Buras. "Dynamic Management of a Surface and Groundwater System on Both Sides of the Lower Yellow River." Department of Hydrology and Water Resources, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/614178.

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This paper analyzes the management problem of the conjunctive use of surface and ground water in an irrigation system on both sides of the Lower Yellow River. For this purpose, a stochastic dynamic programming model is developed. In the model, the statistical characteristics of seasonal rainfall within 2 years are considered; groundwater level control is also emphasized in order to prevent soil salinity and waterlogging. Through computer calculations, optimal operation policies are obtained for efficient conjunctive use of surface and groundwater. These policies take into account the interactions between pumping groundwater by farmers, canal diversions by irrigation system managers, and the physical response of the stream- aquifer system, and minimize the total operation costs. In this paper, we take an irrigation district, the People's Victory Canal System, as an example to illustrate the development and solution of the model. At the same time, the effects of system parameters, including surface irrigation efficiency and rainfall recharge coefficient, on the optimal policies or total operation costs, are discussed. The analytical results in this example indicate that the variation in optimal operation costs caused by the proportion of rainfall infiltrated is small, but the effect of surface irrigation efficiency on the costs is significant. Hence, the surface irrigation efficiency must be increased as much as possible. Then, efficient conjunctive use of surface and groundwater can be attained with the optimal policies.
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Cardoso, Fernanda Armelinda. "Educação ambiental utilizando a temática recursos hídricos para sensibilizar professores do ensino básico." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1427.

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Esta pesquisa foi desenvolvida a partir de uma abordagem mista (quantitativa e qualitativa), utilizando os princípios metodológicos da pesquisa-ação, e teve como objetivo sensibilizar professores do ensino básico quanto às questões dos Recursos Hídricos (RH) e quanto à importância da inserção da Educação Ambiental (EA) em suas práticas pedagógicas. Para atender o objetivo foi ofertado um curso semipresencial, de “Educação Ambiental com ênfase em Recursos Hídricos”, para professores (6o ao 9o ano) da rede estadual de ensino do Paraná. O curso, com duração de 16 semanas, foi ministrado em três encontros presenciais e através do Ambiente Virtual de Aprendizagem (AVA), plataforma Moodle 2.5. No AVA foram disponibilizados textos, artigos, vídeos e reportagens. Para uma maior interação e troca de experiências entre os participantes foram conduzidos Fóruns de discussões acerca dos temas trabalhados. Os resultados foram obtidos através da avaliação dos questionários respondidos pelos participantes durante os encontros presenciais e no AVA, a partir de relatos dos participantes durante o curso, da análise das atividades no AVA e dos Projetos de Ação Ambiental (PAA) desenvolvidos pelas equipes de professores nas escolas. Inicialmente foi realizado um diagnóstico de conhecimento e percepção ambiental dos 82 participantes, sendo que algumas das questões dessa primeira coleta de dados nortearam a continuidade do curso. Considerando a avaliação do curso pelos participantes, a plataforma Moodle foi considerada fácil de trabalhar, os materiais postados nas Bibliotecas foram considerados enriquecedores e bem elaborados e o atendimento pela tutora adequado. As Tarefas foram consideradas bem elaboradas e importantes para facilitar a compreensão dos temas propostos. Dos recursos ofertados, os vídeos indicados se destacaram, pois além das várias visualizações, estes foram utilizados pelos professores em sala de aula. Quanto aos Fóruns, houve divergência de opiniões, onde uns consideraram proveitoso pela troca de experiências e outros sem aproveitamento ou sugeriram outras abordagens. Segundo os participantes, deveriam ter um maior número de encontros presenciais, pois estes ofereceram troca de experiências, palestras interessantes e um melhor entendimento dos temas abordados já que havia a possibilidade de interação em tempo real. O curso foi finalizado com a apresentação de 17 PAA executados pelos professores nas escolas, os quais envolveram o ambiente escolar e seu entorno, promovendo melhorias e o envolvimento da comunidade. A partir da pesquisa realizada é possível concluir que cursos de atualização ou de formação continuada podem ser uma das alternativas para reduzir as lacunas existentes na formação de professores e incentivá-los a trabalhar com a EA em suas práticas pedagógicas.
This work performed through both quantitative and qualitative approaches, using the methodological principles of action research. It has as objective to draw the attention of basic education teachers as far as the Hydric Resources (HR) are concerned, as well as to the importance of the insertion of Environmental Education (EE) in pedagogical practices. In order to attain this objective, a course, called “Environmental Education emphasizing Water Resources”, was offered to teachers from 6th to 9th grades from Parana’s public schools. The course, which lasted 16 weeks, performed both in three in-person meetings and through the Virtual Learning Environment (VLE), Moodle 2.5 platform. Texts, papers, videos and articles were available for the teachers in VLE. Forums about the studied themes also carried, so that participants could interact and exchange experiences. Data obtained through the analysis from the questionnaires answered by the attenders during both the in- person meetings and in VLE, and through attender’s reports during the course, VLE’s activities and Environment Action Projects (EAP) developed by teacher groups in schools. First, a diagnosis about the 82 attender’s environmental knowledge and perception was perform were. Some of the questions from this first data gathering guided the course’s following steps. The participants considered the Moodle platform easy to work with. More than that, they considered the materials published in the libraries enriching the tutor’s help adequate. The tasks considered well elaborated and important in aiding the comprehension of the proposed themes. Considering all offered resources, the videos received considerable attention, since they obtained several views and use were by the teachers in the classroom. As far as the forums are concerned, opinions diverged. Some considered the exchange of experiences very helpful, while others considered it not helpful or proposed other approaches. The course attenders also suggested that a higher number of in-person meetings would improve the quality of the course. Besides containing interesting talks, they favor the exchange of experiences and a better understanding of the themes in focus, since there is real time interaction. Finally, the course was finished with 17 EAP, which performed by participant teachers in schools. These EAPs involved the school environment and its surroundings, promoting improvements for the community. It is possible to conclude from this research that updating courses, as well as continuous formation courses, can act as an alternative to reduce existing gaps in teacher’s education and encourage them to work with Environmental Education and its pedagogical practices.
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Книги з теми "Water resources development Computer simulation"

1

Buyok, John P. Comparison of the WIRSOS and StateMod river basin models with respect to Wyoming modeling requirements. Ranchester, WY: John P. Buyok, 2005.

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2

Wurbs, Ralph Allen. Computer models for water resources planning and management. Alexandria, Va: The Institute, 1994.

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3

Wurbs, Ralph Allen. Computer models for water resources planning and management. Alexandria, Va: U.S. Army Corps of Engineers, Institute for Water Resources, Water Resources Support Center, 1994.

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4

Bourget, Lisa. Converging waters: Integrating collaborative modeling with participatory processes to make water resources decisions. Alexandria, VA: IWR Press, 2011.

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5

Hoekstra, Arjen Y. Perspectives on water: An integrated model-based exploration of the future. Utrecht, Netherlands: International Books, 1998.

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6

Driss, Ben Sari, Brebbia C. A, and Ouazar D, eds. Computer methods in water resources.: Proceedings of the second international conference, held in Marrakesh, Morocco, 20-22 February 1991. Southampton, [England]: Computational Mechanics Publications, 1991.

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7

Aragón, Carlos A. Development and testing of a semi-distributed watershed model: Case studies exploring the impact of climate variability and change in the Rio Salado. Las Cruces, N.M: New Mexico Water Resources Research Institute, New Mexico State University, 2008.

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Hromadka, Theodore V. Computer methods in water resources. Mission Viejo, CA: Lighthouse Publications, 1985.

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Schuster, Ronald J. Colorado River simulation system: Executive summary. Denver, CO: U.S. Dept. of the Interior, Bureau of Reclamation, 1987.

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Schuster, Ronald J. Colorado River simulation system: Executive summary. Denver, CO: U.S. Dept. of the Interior, Bureau of Reclamation, 1987.

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Частини книг з теми "Water resources development Computer simulation"

1

Mashayekhi, Ali N. "Water Resources Development Planning." In Computer-Based Management of Complex Systems, 641–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74946-9_70.

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Aziz, Nurhanani A., M. H. Zawawi, N. M. Zahari, Aizat Abas, and Aqil Azman. "Simulation of Homogeneous Particle Size in Fluid Flow by Using DPM-DEM." In Water Resources Development and Management, 549–55. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-1971-0_53.

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Rohde, F. G., M. Haase, and Ch Gitschel. "Computer Aided Generation and Operation of Hydrologic Simulation Models." In Computational Methods in Water Resources X, 1473–80. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-010-9204-3_178.

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Li, Wei, Jia-Hong Liu, Yu-fei Zhang, and Wei-Hua Xiao. "Research on Reservoir Water Temperature Simulation and Fish Response." In Sustainable Development of Water Resources and Hydraulic Engineering in China, 327–39. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-61630-8_28.

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Wibbeler, H., and U. Meissner. "Development and Application of Adaptive Fe-Models for the Simulation of Flow in Rubble Mound Breakwaters." In Computational Methods in Water Resources X, 123–30. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-010-9204-3_16.

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Garewal, Sahajpreet Kaur, and Avinash D. Vasudeo. "Tools in Decision-Making of Allocation of Non-Traditional Resources for Sustainable Water Development." In Modeling and Simulation of Environmental Systems, 83–96. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003203445-6.

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7

Xiao, Yong, Qichen Hao, Jingli Shao, Yali Cui, and Qiulan Zhang. "Numerical Simulation for Impacts of Mountainous Tunnel Drainage on Groundwater Environment." In Sustainable Development of Water Resources and Hydraulic Engineering in China, 219–26. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-61630-8_18.

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Luu, Duy Vu, Thi Ngoc Canh Doan, Khanh Le Nguyen, Ngoc Duong Vo, and Chau Van Truong. "Simulation of the Hydrodynamic Regime of Aquaculture Development Zones Within Binh Dinh, Vietnam." In Advances in Research on Water Resources and Environmental Systems, 65–76. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-17808-5_5.

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Haixia, Wu, Li Qingxue, and Sun Yuzhuang. "Applicability of Runoff Simulation in the Zhanghe Upstream Based on SWAT Model." In Sustainable Development of Water Resources and Hydraulic Engineering in China, 317–26. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-61630-8_27.

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Du, Fu-hui, Li Tao, Xin-mei Chen, and Huai-xian Yao. "Runoff Simulation Using SWAT Model in the Middle Reaches of the Dagu River Basin." In Sustainable Development of Water Resources and Hydraulic Engineering in China, 115–26. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-61630-8_10.

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Тези доповідей конференцій з теми "Water resources development Computer simulation"

1

Paul, Simon, Kadija Dyall, and Quinn Gabriel. "An Independent Analysis of the Performance Characteristics and Economic Outcomes of the Liza Phase 1 Development Offshore Guyana Using Public Domain Data." In SPE Trinidad and Tobago Section Energy Resources Conference. SPE, 2021. http://dx.doi.org/10.2118/200951-ms.

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Abstract An attempt was made to independently verify the proposed performance of the Liza 1 field using only data available in the public domain. The data used in modelling was sourced from news reports, company disclosures and the analogue Jubilee field in Ghana. Reservoir rock and fluid data from Jubilee Field was deemed an appropriate fit because of the corroboration provided by the Atlantic Drift Theory. A major challenge in creating the model, was determining the aerial extent of the field. According to Yang and Escalona (2011), the subsurface can be reasonably approximated using the surface topography which is possible via the use of GIS software. Google Earth Pro software was used to estimate the coordinates and areal extent of the Liza 1 reservoir. A scaled image of the field location showing the Guyana coastline was re-sized to fit the coastline in Google Pro and then the coordinates for the Liza field and wildcat well locations were estimated. This was used to create the isopach map and set reservoir boundaries to create the static and dynamic models in Schlumberger's Petrel E & P Software Platform (2017) and Computer Modelling Group IMEX Black Oil and Unconventional Simulator CMG IMEX (2016). The initialized model investigated the reservoir performance with and without pressure maintenance over a twenty (20) year period. The original oil in place (OOIP) estimated by the model was 7% larger than the OOIP estimated by ExxonMobil for Liza field. The model produced 35% of the OOIP compared to 50% of OOIP as forecasted by the operators. (See Table 1). The factors that strongly influenced this outcome were, the well positioning and the water injection rates. A significant percentage of the oil remained unproduced in the lower layers of the model after the 20-year period. Time did not permit further modelling to improve the performance of the model. Table 1 Comparison of The Created Model and ExxonMobil's Proposal for Liza. Property ExxonMobil's statement on Liza field Modelled field Result Original Oil in Place (MMbbl) 896 967 Oil Recovery Factor (%) 50 35 Gas production from the model would be used as gas injection from three injector wells and as fuel for the proposed 200 MW power plant for Guyana. Even so, significant volumes of natural gas remained unallocated and subsequently a valuable resource may have to be flared.
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Tang, S., P. Tse, and X. Wang. "The Revelation of Propagating Ultrasonic Guided Waves Through Simulation When They Encountered Defects in a Pipe." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86380.

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In Hong Kong, there are many gas and water pipelines buried under buildings and roads. A rupture of the water or gas pipeline may cause serious interruption to traffic and even human casualties. Therefore, a single-point based and easy-to-install pipeline inspection system is essential to Hong Kong daily living and crucial to public safety. One of the effective and convenient inspection methods for underground pipeline inspection is the ultrasonic-based guided waves. The success in pipe inspection relies on the emission of proper mode of guided waves to a particular type of pipe. To derive the necessary parameters in helping the selection of optimal mode of waves, one can use simulation or real experiments. The cost and difficulty in conducting live experiments on roads are too high, especially in a dense living area like Hong Kong. Hence, simulation is preferred to minimize the frequency and number of experiments necessary to be conducted. A finite element method (FEM) tool, called ANSYS, was selected to build the required dynamical models. However, several obstacles must be solved prior to the development of 3D models for pipes suffering from various defects. These obstacles include the complexity in simulating high frequency guided waves when they are propagating inside a pipeline, the requirements of huge memory space and intensive computational resources. In this paper, we present detailed descriptions on solving these obstacles. The methods to determine the optimal element size and time step are also reported so that the best trade-off can be achieved in terms of efficiency and computational intensity. To verify the accuracy in simulations, selected experiments were conducted for verification purpose. The results show good agreement between the results of simulations and experiments.
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Szeto, Kei, and Stefan Grochowalski. "Maneuvering Simulation Model Based oh Ship Design Parameters." In SNAME 22nd American Towing Tank Conference. SNAME, 1989. http://dx.doi.org/10.5957/attc-1989-057.

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The knowledge of maneuvering characteristics of ships under different conditions is paramount from the safety and operation point of view. The maneuvering characteristics can be predicted in a number of ways: model scale maneuvering test, numerical calculation using hydrodynamic theories and numerical simulation based on semispherical formulas. The first and second approaches require detailed information of the hull geometry and other particulars. The model test prediction is often costly since it requires model construction, specialized equipment and testing facilities, etc. The theoretical prediction is less expensive than the model test but it usually requires substantial amount of computer resources, and CPU time in particular. On the other hand, semiempirical prediction does not require detailed ship information or extensive use of computer facilities, and it is the least expensive. However, it can only predict the general maneuvering characteristics for a given combination of ship basic parameters – principle dimensions, rudder and propeller particulars. Such general maneuvering characteristics would be essential for applications in ship design, port planning and maritime policy making. Using the semiempirical prediction at the early stage of a ship design, the designer can optimize the ship basic parameters in relation to maneuverability and other mission requirements. The port authorities and regulatory agencies can consult the semiempirical prediction in their decision making process regarding port development, traffic control and navigational requirements for different classes of ships. Bearing this in mind, a hydrodynamic derivative-type maneuvering simulation model has been developed at the Institute for Marine Dynamics ( IMD) of the National Research Council Canada. The development of the model was based on published information. The simulation model can predict the maneuvering characteristics of a ship if its hydrodynamic derivatives, rudder and propeller geometry are known. In addition, it can also predict maneuvering characteristics of merchant ships based on its basic design parameters including: length, beam, draft, block and waterplane coefficients, displacement, rudder and propeller geometry, etc. The model allows continuous engine speed and rudder angle inputs for simulation of both standard and arbitrary maneuvers. The model can also predict the influence of different propulsion systems and operating conditions oo the maneuvering behavior. It incorporates the effect of a bow thruster and the different response characteristic of steam and diesel power plants. In addition, the effects of bank and channel, current, shallow water and wind on the maneuvering behavior are incorporated. The mathematical formulations of the basic maneuvering model, thruster, propulsion plants and various environmental effects are described in Section 2 and 3. A carputer software package has been developed according to the mathematical formulations described. The package utilizes the existing carputer facilities at IMD. It is designed to be user-friendly and operates interactively according to the instructions of the user. The structure and usage of the simulation software are described in Section 4. A discussion of the accuracy of the simulation model is based on comparisons with model scale and sea trial results and the conclusions are presented in section 5 and 6, respectively.
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4

Visarraga, D., B. Bush, S. P. Linger, and T. N. McPherson. "Development of a JAVA Based Water Distribution Simulation Capability for Infrastructure Interdependency Analyses." In World Water and Environmental Resources Congress 2005. Reston, VA: American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40792(173)14.

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Heineman, Mitchell C. "NetSTORM - A Computer Program for Rainfall-Runoff Simulation and Precipitation Analysis." In World Water and Environmental Resources Congress 2004. Reston, VA: American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40737(2004)395.

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Lai, Yong G. "Development and Verification of a Three-Dimensional Model for Flow Hydrodynamic and Sediment Transport Simulation." In World Environmental and Water Resources Congress 2018. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481424.003.

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Downer, Charles W., and Stacy E. Howington. "Development and Testing of Surface Water/Groundwater Interaction Simulation Capabilities for the Department of Defense." In World Water and Environmental Resources Congress 2001. Reston, VA: American Society of Civil Engineers, 2001. http://dx.doi.org/10.1061/40569(2001)55.

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Huang, Jianchun, Blair P. Greimann, and Chih Ted Yang. "Development and Validation of GSTARS-1D, A General Sediment Transport Model for Alluvial River Simulation - One Dimensional." In World Water and Environmental Resources Congress 2004. Reston, VA: American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40737(2004)319.

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Lal, M. Wasantha, Randy J. Van Zee, and Walter Wilcox. "Development of Analytical Solutions for Wave Propagation Characteristics along Rivers and for Verifying the Regional Simulation Model (RSM)." In World Environmental and Water Resources Congress 2018. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481400.030.

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Li, Yue, Yanlong Li, and Yang Yang. "The Relationship between Industrial Water Consumption and Economic Development---the Strictest Water Resources Management System." In 2016 International Conference on Education, Management and Computer Science. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icemc-16.2016.212.

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Звіти організацій з теми "Water resources development Computer simulation"

1

Shani, Uri, Lynn Dudley, Alon Ben-Gal, Menachem Moshelion, and Yajun Wu. Root Conductance, Root-soil Interface Water Potential, Water and Ion Channel Function, and Tissue Expression Profile as Affected by Environmental Conditions. United States Department of Agriculture, October 2007. http://dx.doi.org/10.32747/2007.7592119.bard.

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Constraints on water resources and the environment necessitate more efficient use of water. The key to efficient management is an understanding of the physical and physiological processes occurring in the soil-root hydraulic continuum.While both soil and plant leaf water potentials are well understood, modeled and measured, the root-soil interface where actual uptake processes occur has not been sufficiently studied. The water potential at the root-soil interface (yᵣₒₒₜ), determined by environmental conditions and by soil and plant hydraulic properties, serves as a boundary value in soil and plant uptake equations. In this work, we propose to 1) refine and implement a method for measuring yᵣₒₒₜ; 2) measure yᵣₒₒₜ, water uptake and root hydraulic conductivity for wild type tomato and Arabidopsis under varied q, K⁺, Na⁺ and Cl⁻ levels in the root zone; 3) verify the role of MIPs and ion channels response to q, K⁺ and Na⁺ levels in Arabidopsis and tomato; 4) study the relationships between yᵣₒₒₜ and root hydraulic conductivity for various crops representing important botanical and agricultural species, under conditions of varying soil types, water contents and salinity; and 5) integrate the above to water uptake term(s) to be implemented in models. We have made significant progress toward establishing the efficacy of the emittensiometer and on the molecular biology studies. We have added an additional method for measuring ψᵣₒₒₜ. High-frequency water application through the water source while the plant emerges and becomes established encourages roots to develop towards and into the water source itself. The yᵣₒₒₜ and yₛₒᵢₗ values reflected wetting and drying processes in the rhizosphere and in the bulk soil. Thus, yᵣₒₒₜ can be manipulated by changing irrigation level and frequency. An important and surprising finding resulting from the current research is the obtained yᵣₒₒₜ value. The yᵣₒₒₜ measured using the three different methods: emittensiometer, micro-tensiometer and MRI imaging in both sunflower, tomato and corn plants fell in the same range and were higher by one to three orders of magnitude from the values of -600 to -15,000 cm suggested in the literature. We have added additional information on the regulation of aquaporins and transporters at the transcript and protein levels, particularly under stress. Our preliminary results show that overexpression of one aquaporin gene in tomato dramatically increases its transpiration level (unpublished results). Based on this information, we started screening mutants for other aquaporin genes. During the feasibility testing year, we identified homozygous mutants for eight aquaporin genes, including six mutants for five of the PIP2 genes. Including the homozygous mutants directly available at the ABRC seed stock center, we now have mutants for 11 of the 19 aquaporin genes of interest. Currently, we are screening mutants for other aquaporin genes and ion transporter genes. Understanding plant water uptake under stress is essential for the further advancement of molecular plant stress tolerance work as well as for efficient use of water in agriculture. Virtually all of Israel’s agriculture and about 40% of US agriculture is made possible by irrigation. Both countries face increasing risk of water shortages as urban requirements grow. Both countries will have to find methods of protecting the soil resource while conserving water resources—goals that appear to be in direct conflict. The climate-plant-soil-water system is nonlinear with many feedback mechanisms. Conceptual plant uptake and growth models and mechanism-based computer-simulation models will be valuable tools in developing irrigation regimes and methods that maximize the efficiency of agricultural water. This proposal will contribute to the development of these models by providing critical information on water extraction by the plant that will result in improved predictions of both water requirements and crop yields. Plant water use and plant response to environmental conditions cannot possibly be understood by using the tools and language of a single scientific discipline. This proposal links the disciplines of soil physics and soil physical chemistry with plant physiology and molecular biology in order to correctly treat and understand the soil-plant interface in terms of integrated comprehension. Results from the project will contribute to a mechanistic understanding of the SPAC and will inspire continued multidisciplinary research.
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Semerikov, Serhiy, Viacheslav Osadchyi, and Olena Kuzminska. Proceedings of the 1st Symposium on Advances in Educational Technology - Volume 2: AET. SciTePress, 2022. http://dx.doi.org/10.31812/123456789/7011.

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Symposium on Advances in Educational Technology (AET) is a peer-reviewed international conference focusing on research advances and applications of combined use of computer hardware, software, and educational theory and practice to facilitate learning. Today, AET is the premier interdisciplinary forum for learning scientists, academicians, researchers, professionals, policymakers, postgraduate students, and practitioners to present their latest research results, ideas, developments, and applications. AET topics of interest are: • Artificial intelligence in education • Augmented reality in education • Cloud-based learning environments • Cloud technologies for mathematics learning • Cloud technologies for informatics learning • Computer simulation in science and mathematics learning • ICT in primary and secondary education • ICT in higher education • Learning environments • Learning technology • Professional training in the digital space • Massive open online courses • Methodology of informatization in education • Modelling systems in education • Psychological safety in the digital educational environment • Soft skills development • STEM education • Virtualization of learning This volume represents the proceedings of the Symposium on Advances in Educational Technology, held in Kyiv, Ukraine, on November 12-13, 2020. It comprises 110 contributed papers that were carefully peer-reviewed and selected from 282 submissions. Each submission was reviewed by at least 3, and on the average 3.1, program committee members. The accepted papers present a state-of-the-art overview of successful cases and provide guidelines for future research. We are thankful to all the authors who submitted papers and the delegates for their participation and their interest in AET as a platform to share their ideas and innovation. Also, we are also thankful to all the program committee members for providing continuous guidance and efforts taken by peer reviewers contributed to improve the quality of papers provided constructive critical comments, improvements and corrections to the authors are gratefully appreciated for their contribution to the success of the workshop. Moreover, we would like to thank the developers of HotCRP, who made it possible for us to use the resources of this excellent and comprehensive conference management system, from the call of papers and inviting reviewers, to handling paper submissions, communicating with the authors, and creating the volume of the workshop proceedings.
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