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Now showing items 951-960 of 1031
Working paper
Searching for a substitute: Algeria and Venezuela as energy security alternatives for Europe?
(2024-01-26)
• Venezuela und Algerien sind für die Europäische Union potenzielle, zukünftige Energiepartner.
• Die EU steht vor einer doppelten Herausforderung: Sie muss kurzfristige Alternativen für Gaslieferungen finden und sich langfristig
einem green deal verpflichten. Dies erfordert einen grundlegenden Wandel der Zusammenarbeit zwischen EU mit ihren
Energielieferländern.
• Algerien verfügt über großes Potenzial erneuerbarer Energien, es mangelt ihnen jedoch an Technologie und Kapital. Eine EUAlgerien
Energiepartnerschäft ...
Working paper
Les dynamiques socio-économiques du Hirak Algérien : un facteur souvent ignoré
(2023-09)
• In 2019, Algeria experienced one of the largest popular uprisings the country has ever seen in its post-independence history: the Hirak.
• The crisis had been looming for several years, as shifts in the political elite increased. The end of the financial boom exacerbated this process.
• Between 2015 and 2018, oil and gas export revenues declined by an average of 14% per year.
• Socioeconomic factors ultimately contributed to the outbreak of the Algerian hirak.
Habilitation
Twin Basic Quantum Calculus and its Applications
(2024)
We give in this work some results on twin basic quantum calculus. The (p,q)-derivative, the (p,q)-integral and some (p,q)-Taylor formula are discussed. Next, we introduce and provide several results about (p,q)-Gamma and (p,q)-Beta functions. Some (p,q)-Sturm Liouville problems are introduced and some (p,q)-hypergeometric solutions are obtained. The work ends with the introduction (p,q)-Appell polynomials and some (p,q)-Laplace transforms.
Aufsatz
Food security status and its determinants: A comparative study between farm households under government and non-government agricultural extension services in Bangladesh
(2024-02-29)
The ability to obtain food security is essential to human existence. Secure food access can have a variety of positive effects, such as economic expansion, the creation of jobs, and the eradication of poverty. This study assessed the food security status of farm households and its determinants in the Dinajpur district of Bangladesh. Efforts were also made to assess and compare the socio-economic demographics and item-wise calorie intake among households receiving government and non-government agricultural extension ...
Aufsatz
Development of deep-placement fertiliser applicator and modelling of loads arising in the process of its operation
(2023-12-28)
The article considers the method of minimum tillage, namely soil tillage, loosening the soil, and fertiliser application at a depth below the level of the main crop. This method allows you to minimize the number of operations used in the cultivation of row crops such as soybeans, wheat, and others. The research in the area of soil tillage, namely the mathematical calculation and static analysis performed with the CAD system, revealed the loads that appear directly in the places where the soil deepener is attached to ...
Dissertation
Reporting Power
(2024)
An eclectic genealogy (Foucault, 1977) that reconstructs the previous understanding and emergence of a ‘taken for granted’ global practice: the practice of suspicious activity reporting. A governance practice whereby financial institutions worldwide document and report the conduct of consumers deemed suspicious. At the center of this practice is a material artefact, a multipage fillable form called the Suspicious Activity Report. Following Actor-Network Theory (Latour, 1987), the form also serves as the centerpiece ...
Aufsatz
Influence of deep rolling at different temperatures on near-surface and mechanical properties of a Maraging C250 steel
(2024-04-27)
Due to an outstanding combination of high strength and fracture toughness Maraging steels are used in numerous industries, e.g., in the aerospace sector. The high strength can be attributed to precipitation strengthening by conventional age-hardening heat treatments. However, as many of the envisaged applications will suffer from cyclic loadings, the fatigue properties are of significant interest in terms of a reliable use. Generally, Maraging steels are characterized by a relatively low fatigue strength limiting the ...
Dissertation
Dynamics of Norms in Decision-Making
(2024-01)
So far, there is a lack of understanding how norms change. The aim of the present dissertation was twofold: (1) addressing differences between change processes of different types of norms and (2) focusing more particularly on how norms are internalized. To study norm dynamics, a multi-method approach was chosen, combining theory, social simulation, and experimental research. In the theoretical contribution, a psychologically grounded conceptual model of norm change and decision-making was presented. Based on a refined ...
Aufsatz
Parameter recommendation for injection molding based on similarity analysis of injection molded parts
(2023)
Injection molding is a widespread manufacturing process for producing complex plastic shapes. The process is controlled by a large number of parameters, which show interactions with each other. Thereby the determination of an optimal operating point during sampling is a resource-consuming and demanding task. The data, which is generated during sampling, is usually not used for subsequent sampling processes. In the context of Industry 4.0, manufacturing companies attempt to optimize production efficiency to save time ...
Aufsatz
Baumwolle als Faserverstärkung
(2023)
Jedes Jahr landen große Mengen Textilen auf Deponien oder in der thermischen Verwertung. Ein Teil dieser Abfälle könnte allerdings auch als Rohstoffe für Verbundwerkstoffe dienen. Baumwollfasern eignen sich etwa als Verstärkungsfasern, die die mechanischen Eigenschaften von biobasierten Kunststoffen steigern. Durch die Nutzung solcher Abfallströme können in Zukunft kostengünstig und biobasiert Materialien verstärkt werden.