Simulation Modeling of the Impact of Four Major River Weir Opening for the Nature Recovery

2021 ◽  
Vol 22 (4) ◽  
pp. 5-24
Author(s):  
Mi-Ae Jung ◽  
Dae Uk Jeon
Keyword(s):  
Simulation Modeling ◽  
Major River ◽  
The Impact

Simulation Modeling of the Impact of Four Major River Weir Opening for the Nature Recovery

2021 ◽  
Vol 22 (3) ◽  
pp. 5-33
Author(s):  
Namhee Choi ◽  
Jinhyung Chon ◽  
Kihwan Song
Keyword(s):  
Simulation Modeling ◽  
Major River ◽  
The Impact

scholarly journals REVIEW AND ANALYSIS OF LESSONS LEARNED HANDWRITING EXPERTISE AS A WAY TO IDENTIFY PROBLEMS AND WAYS TO SOLVE THEM IN EXISTING METHODS OF HANDWRITING RESEARCH

2019 ◽  
pp. 29-44
Author(s):  
Vladlena Vyacheslavovna Lozben ◽  
Luybov Vadimovna Gajkova
Keyword(s):  
Information Security ◽  
Simulation Modeling ◽  
Lessons Learned ◽  
Comparative Characteristic ◽  
Scientific Methods ◽  
Biometric Systems ◽  
Analysis And Synthesis ◽  
The Impact ◽  
Constant Improvement ◽  
Handwriting Research

In today’s environment, information security needs constant improvement. Therefore, biometric technologies are becoming increasingly important as a key area of information protection, contributing to the widespread introduction of biometric systems across firms and organizations. Purpose: in the course of handwriting research, human participation is a prerequisite for handwriting expertise, which entails certain problems in the field of biometric expertise, the emphasis on which is contained in the article. Methodology: tools and methods are considered to reduce the impact of problems on the process of handwriting examination: popular scientific methods of phase and case analysis and synthesis; Mathematical and simulation modeling methods and tools. Results: in order to identify approaches to reducing subjectivity of expert’s conclusions, a review and analysis of existing solutions was carried out, as a result of which a comparative characteristic of approaches to solving the problem of handwriting examination was drawn up. Scope of results: the results of this study will help the organization’s leadership in information security.

scholarly journals Imaginary Worlds: The Status of Simulation Modeling in Claims for Cost-Effectiveness In Diabetes Mellitus

2016 ◽  
Vol 7 (2) ◽  
Author(s):  
Paul C Langley ◽  
Taeho Greg Rhee
Keyword(s):  
Diabetes Mellitus ◽  
Cost Effectiveness ◽  
Simulation Modeling ◽  
Decision Makers ◽  
The Past ◽  
The Status ◽  
The Impact

Over the past 20 years a number of simulations or models have been developed as a basis for tracking and evaluating the impact of pharmacological and other interventions in type 1 and type 2 diabetes mellitus. These models have typically tracked the natural course of these diseases generating long-term composite claims for cost-effectiveness. These claims can extend over the lifetime of the modeled patient cohort. Set against the standards of normal science, however, these claims lack credibility. The claims presented are all too often either immune to failure or are presented in a form that is non-testable. As such they fail to meet the key experimental requirements of falsification and replication. Unfortunately, there is a continuing belief that long-term or lifetime models are essential to decision-making. This is misplaced. The purpose of this review is to argue that there is a pressing need to reconsider the needs of health system decision makers and focus on modeled or simulated claims that are meaningful, testable, reportable and replicable in evaluating interventions in diabetes mellitus.   Type: Commentary

Assessing the impact of climate variability on maize using simulation modeling under semi-arid environment of Punjab, Pakistan

2018 ◽  
Vol 25 (28) ◽  
pp. 28413-28430 ◽  
Author(s):  
Ishfaq Ahmed ◽  
Muhammad Habib ur Rahman ◽  
Shakeel Ahmed ◽  
Jamshad Hussain ◽  
Asmat Ullah ◽  
...  
Keyword(s):  
Climate Variability ◽  
Simulation Modeling ◽  
Arid Environment ◽  
The Impact ◽  
Semi Arid

scholarly journals The Impact of Vaccination to Control COVID-19 Burden in the United States: A Simulation Modeling Approach

2021 ◽  
Author(s):  
Oguzhan Alagoz ◽  
Ajay K. Sethi ◽  
Brian W. Patterson ◽  
Matthew Churpek ◽  
Ghalib Alhanaee ◽  
...  
Keyword(s):  
New York ◽  
New York City ◽  
Simulation Modeling ◽  
Vaccine Coverage ◽  
The United States ◽  
Funding Source ◽  
Vaccination Programs ◽  
Agent Based ◽  
Nonpharmaceutical Interventions ◽  
The Impact

ABSTRACTIntroductionVaccination programs aim to control the COVID-19 pandemic. However, the relative impacts of vaccine coverage, effectiveness, and capacity in the context of nonpharmaceutical interventions such as mask use and physical distancing on the spread of SARS-CoV-2 are unclear. Our objective was to examine the impact of vaccination on the control of SARS-CoV-2 using our previously developed agent-based simulation model.MethodsWe applied our agent-based model to replicate COVID-19-related events in 1) Dane County, Wisconsin; 2) Milwaukee metropolitan area, Wisconsin; 3) New York City (NYC). We evaluated the impact of vaccination considering the proportion of the population vaccinated, probability that a vaccinated individual gains immunity, vaccination capacity, and adherence to nonpharmaceutical interventions. The primary outcomes were the number of confirmed COVID-19 cases and the timing of pandemic control, defined as the date after which only a small number of new cases occur. We also estimated the number of cases without vaccination.ResultsThe timing of pandemic control depends highly on vaccination coverage, effectiveness, and adherence to nonpharmaceutical interventions. In Dane County and Milwaukee, if 50% of the population is vaccinated with a daily vaccination capacity of 0.1% of the population, vaccine effectiveness of 90%, and the adherence to nonpharmaceutical interventions is 65%, controlled spread could be achieved by July 2021 and August 2021, respectively versus in March 2022 in both regions without vaccine. If adherence to nonpharmaceutical interventions increases to 70%, controlled spread could be achieved by May 2021 and April 2021 in Dane County and Milwaukee, respectively.DiscussionIn controlling the spread of SARS-CoV-2, the impact of vaccination varies widely depending not only on effectiveness and coverage, but also concurrent adherence to nonpharmaceutical interventions. The effect of SARS-CoV-2 variants was not considered.Primary Funding SourceNational Institute of Allergy and Infectious Diseases

Measuring the Impact of Additional Rail Traffic Using Highway and Railroad Metrics

2012 ◽  
Author(s):  
Samuel L. Sogin ◽  
Christopher P. L. Barkan ◽  
Yung-Cheng Lai ◽  
Mohd Rapik Saat
Keyword(s):  
North America ◽  
Case Studies ◽  
Simulation Modeling ◽  
Single Track ◽  
Economic Study ◽  
Utility Models ◽  
The Impact ◽  
Rail Traffic

Long term demand for freight movements in North America is expected to increase dramatically in the coming decades. The railroads are poised to take on this additional traffic assuming the capacity is available. Measuring the capacity of these rail lines is complicated by the interrelationships between asset utilization, reliability, and throughput. There is not a single metric that captures these intricacies. Capacity can be determined by delay-volume relationships, utility models, or economic study. For many case studies, railroads use parametric and simulation modeling to determine the train delay per 100 train miles. This metric does not tell the full story; especially when comparing different train types. The highway industry uses a different portfolio of metrics that can be adopted by railroad capacity planners. These metrics can be more sensitive to the worse performing trains. Additionally, these metrics can control for increased delay simply due to additional traffic. These concepts are illustrated by simulating the impact of additional 110 mph passenger service to a single track freight line.

Hydrological Risk Phenomena and Flood Analysis

2015 ◽  
pp. 284-311
Author(s):  
Constantin Buta ◽  
Ichinur Omer ◽  
Andreea Andronic
Keyword(s):  
Black Sea ◽  
The Other ◽  
The Black Sea ◽  
Theoretical Concepts ◽  
River Catchment ◽  
Catchment Size ◽  
Major River ◽  
Flood Analysis ◽  
The One ◽  
The Impact

This paper is one detailed research of the major river basins of the Romanian North Dobrogea, Taita River Catchment. The Taita River has a catchment size of about 591 km 2 and is flowing into the Black Sea through Topraichioi Lake after 57 km. Upstream it has an elevation about 240 m height and 0 m at downstream (the reference is the Black Sea). The complexity of this research study is given, on the one hand, by the descriptive side of the natural aspects (geological, morphological, climatic aspects, hydrology and the soil) and, on the other hand, by the practical side, boosted by the information system processing of data. This study presents the theoretical concepts concerning the hazards and the risk, which, for a better interpretation of the impact of these phenomena, are supplemented by the maps, graphs and photographs.

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