2 research outputs found
Current Profiling of Research on Donkeys and Its Implications in Global Studies Based on Bibliometric Analysis
No full textTremendous work has been conducted in equine medicine research, with special reference to donkeys. Our study surveyed applied studies on donkeys by 2023 in a quantitative manner. Data were retrieved from the Web of Science database. The points investigated addressed the general criteria of global donkey research. Statistical data were set for each studied item using VOSviewer software, with a focus on the top ten results for each item. A total of 2947 documents were extracted. results revealed that author Burden F.A. had the highest number of published papers (68, 2.30%), publications in 2020 (8.92%) were at the front. The Egyptian Knowledge Bank (EKB) had the highest number of papers (177, 6.01%), the National Natural Science Foundation of China (Nsfc) (91, 3.08%) was the top funding agency, USA was the top nation in publications (13.87 %), and the majority of publications were in English (2757, 93.55 %). The highest publications in WOS categories, were collected from Veterinary Sciences (1695, 57.51%). Research articles were the most abundant form (85.61 %). Dairy and Animal Sciences was at the top of citation topics (351, 11.91%). Elsevier had the highest publications (23.58%), Journal of Equine Veterinary Science was placed in the top journals (163, 5.53%). The data from the current study can be used to assess the situation of applied research on donkeys, helping to set possible future maps
Finite volumes and automatic di erentiation on elliptic problems associated with oil reservoir simulation
No full textThis paper deals with theoretical and computational aspects of flow equations in a porous media based on Darcy’s law. These are equations that include the basic structure of those used in reservoir simulation but do not include several phases and several components.
The motivation for this thesis comes from a research project supported by COLCIENCIAS which several professors at the Universidad Nacional de Colombia, both the Faculty of Mines and the Faculty of Sciences, are responsible. The project aims to study the oil production strategy called Enhanced Oil Recovery (EOR). Although the equations to shape EOR processes are more complex, those presented in this thesis are indispensable to be able to announce the general equations.
The results obtained in this proposal are related to the numerical method of discretization by finite volumes and to the computational procedure called automatic differentiation. The combination of these two techniques is of great interest to the reservoir simulation community.
This is a thesis in the field of numerical analysis, it contains theoretical results, for example consistency of a numerical scheme or existence and uniqueness of an equation and also contains eminently computational results.Este trabajo trata aspectos teóricos y computacionales de unas ecuaciones de flujo en medio poroso basadas en Ley de Darcy. Son ecuaciones que incluyen la estructura básica de las que se usan en simulación de yacimientos pero no incluyen varias fases ni varias componentes.
La motivación para el trabajo viene de un proyecto de investigación apoyado por COLCIENCIAS del que son responsables varios profesores de la Universidad Nacional de Colombia, tanto de la Facultad de Minas como de la Facultad de Ciencias. El proyecto tiene por objeto el estudio de la estrategia de producción de petróleo denominada Recobro Mejorado de Petróleo (Enhanced Oil Recovery EOR.) Aunque las ecuaciones para modelar procesos de EOR son más complejas, las que presentamos en esta tesis son indispensables para poder enunciar las ecuaciones generales.
Los resultados que se obtuvieron en esta tesis están relacionados con el método numérico de discretización por volúmenes finitos y con el procedimiento computacional denominado diferenciación automática. La combinación de estas dos técnicas es de mucho interés en la comunidad dedicada a la simulación de yacimientos.
Esta es una tesis en el campo del análisis numérico, contiene resultados teóricos, por ejemplo consistencia de un esquema numérico o existencia y unicidad de una ecuación y también contiene resultados eminentemente computaciones.Maestrí
