1,720,956 research outputs found
THE SPECIFICATION OF HYDROLOGICAL MODEL REQUIREMENTS FOR BOG RESTORATION
Get PDFINTRODUCTION
Within the scope of biodiversity and sustainable ecosystem development, the restoration of a bog’s ecosystem is important because by reducing the drainage effect on the bog, the negative impact on adjacent intact or relatively intact raised bog and other wetland hydrological regimes is lowered. Degraded bogs are mires with a disturbed natural hydrological regime, or those partly exploited for peat extraction. However, the hydrological regime can be restored and peat formation is expected within 30 years. The restoration of a bog’s hydrological regime can be accelerated by filling up the drainage ditches.
In the course of researching scientific literature, the author has found no evidence of a system dynamics model developed to simulate tree cutting intensity in degraded bogs after filling the drainage ditches for the purpose of speeding up the restoration of the hydrological regime. Thus, this approach is an innovative way of solving the problem.
Bog hydrological systems are complex systems with many components, thus an interdisciplinary approach must be applied which combines hydrology, biology, geography and meteorology with computer sciences. Specification requirement technique is a useful tool for determining the elements that shape a bog’s hydrological system and interact with each other, thus providing the design for a simulation model.
MATERIAL AND METHODS
In the opinion of the author, the most suitable specification requirement tool to determine components forming the bog hydrological system is (OOAD), because it is applicable both in system dynamics and object modelling systems. Based on OOAD, it will be able to build system dynamics models in STELLA system dynamics and the GEOframe NewAGE modelling system, which is based on an object modelling system framework.
OOAD principles are fundamentally based on real world objects (Powell-Morse, 2017) - in this case, the elements forming a bog’s hydrological system.
OOAD combines all behaviours, characteristics and states into one analysis process, rather than splitting them up into separate stages, as many other methodologies would do (Powell-Morse, 2017).
OOAD can be divided in two parts – Object-Oriented Analysis (OOA), and Object-Oriented Design (OOD). The products of OOA serve as models from which we may start an object-oriented design; the products of OOD can then be used as blueprints for completely implementing a system using object-oriented programming methods (Booch, 1998).
In the study of the boundaries of the bog hydrological model, theoretical methods such as case study and content analysis were mainly used - specifically evaluative, explorative and instrumental review methods.
RESULTS
This study helped to understand complex interrelationships that exist between different elements within a bog’s hydrological system. The bog hydrological system boundaries were clarified, and the simulation model specification requirements were determined.
DISCUSSION
The next step is to develop simulation models in STELLA system dynamics and the GEOframe NewAGE modelling system and compare the performance.
These simulation models will be made to represent water movement in a bog’s hydrological system from water input by means of precipitation to water output through interception, sublimation, evaporation, transpiration, lake outflow and overland flow.
The input data will be loaded manually from the QGIS Open Source Geographic Information System and Excel databases. It will be possible to generate output data in the form of frequency tables, graphical analysis, review tables, GIS raster files and others.
CONCLUSION
The determination of tree thinning intensity in degraded bogs using modelling is a new innovative approach which should allow the water level of ecosystems to be restored faster and more efficiently, thus increasing natural diversity, improving the quality of life of local people and promoting bog recreational ability
METHODOLOGIES FOR CLIMATE NEUTRALITY ASSESSMENT. REVIEW
Get PDFUnder the research project Decision-making Support System for Achieving Climate Neutrality Goals simulation modelling is used as a method for assessing climate neutrality across six sectors. To see if simulation modelling is still widely used and learn from latest trends in climate neutrality assessment across sectors and scales, ten suitable studies from 2022 to 2025 were selected. Key metrics range from life cycle assessment boundaries and greenhouse gas accounting to scenario modelling, carbon intensity, and indicators of strategy and mitigation.
 
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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