Search
Now showing items 181-190 of 201
Dissertation
Biases im Planungsprozess
(2023)
Die vorliegende Arbeit befasst sich mit der Frage nach der Relevanz und der Diagnostizierbarkeit kognitiver, motivationaler und gruppendynamischer Biases im Kontext organisationaler Planungsprozesse. Ziel der Arbeit war es, einen Fragebogen zu entwickeln, der die Anfälligkeit von Gruppen für derartige Biases erfasst und damit einen Indikator für die Qualität von Planungsprozessen darstellt.
Bezüglich des Problems der Diagnostizierbarkeit impliziter Biases zeigt sich in der Literatur, dass die Organisationskultur die ...
Teil eines Buches
Kulturen der Mündlichkeit
(Peter Lang, 2023-02-13)
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 ...
Video
DEL QHAPAQ ÑAN A LAS RUTAS COLONIALES
(2023-03-17)
En un mismo territorio se instalan primero el Tahuantinsuyo y luego el Virreinato del Perú, y, sobre la base de ambos, desde la Independencia, la República del Perú.
Los cambios estructurales en lo social, económico y político en el paso de una civilización autóctona a una economía y sociedad coloniales se expresan también en las diferentes estrategias de ocupación del territorio.
La presente conferencia esboza la gestación y transformación de la estructura vial peruana en sus momentos constitutivos como base y ...
Video
PIURA
(2023-03-31)
Desde su fundación española en 1532, el medio geográfico, las transformaciones económicas y una planificación insuficiente marcan una relación conflictiva entre la ciudad y su entorno, caracterizado por el bosque seco tropical renovado de modo cíclico por El Niño. Víctor Velezmoro presenta el devenir histórico de una ciudad que se sofoca ante la ausencia de un plan que permita enfrentar la dicotomía de su ubicación en el desierto y a la vez sujeta a inundaciones.
Víctor Velezmoro Montes
Licenciado en Arte por ...
Video
LA ARQUITECTURA DE AREQUIPA
(2023-04-14)
Los tiempos de la arquitectura de Arequipa responden, más que a clasificaciones historicistas estilísticas, a las frecuencias de los sismos. Entender esto exige aceptar persistencias y fragmentaciones en una misma obra, que en su conjunto adquiere, más allá de expresar un modo de vida, una compleja espacialidad, funcionalidad y construcción.
Resulta una arquitectura que según el sino de su tiempo sabe ser renacentista, manierista, barroca o neoclásica, integrando lo necesario para hacer posible la continuidad de la ...
Aufsatz
On the Monotonic and Cyclic Behavior of an Al-Mg-Zn-Cu-Si Compositionally Complex Alloy
(2023-08-03)
In present work, the monotonic and cyclic properties of a novel Al-Mg-Zn-Cu-Si compositionally complex alloy (CCA) are investigated. Microstructural studies reveal that a eutectic phase and fishbone-type structures are embedded in the Al-matrix. The mechanical properties of this CCA obtained under compressive loading are found to be promising. However, low ultimate strength and brittle behavior are seen under tension. The fatigue performance of the alloy in the low-cycle fatigue (LCF) regime is poor. Microstructural ...
Aufsatz
Hot Sheet Metal Forming Strategies for High-Strength Aluminum Alloys: A Review—Fundamentals and Applications
(2023-05-17)
In the past decade, aluminum alloys have become important structural materials in the automotive industry, thanks to their low density, high strength, high fracture toughness, and good fatigue performance. However, an important limitation of aluminum alloys is their poor formability at room temperature; as a result, numerous studies have been conducted with the aim of developing forming techniques to overcome this and facilitate the forming of more complex-shaped components. Following an overview on the metallurgical ...
Aufsatz
Experimental Analysis of the Stability of Retained Austenite in a Low-Alloy 42CrSi Steel after Different Quenching and Partitioning Heat Treatments
(2023-06-21)
Quenching and partitioning (Q&P) steels are characterized by an excellent combination of strength and ductility, opening up great potentials for advanced lightweight components. The Q&P treatment results in microstructures with a martensitic matrix being responsible for increased strength whereas interstitially enriched metastable retained austenite (RA) contributes to excellent ductility. Herein, a comprehensive experimental characterization of microstructure evolution and austenite stability is carried out on a ...
Aufsatz
Electron Beam Welding of Hot-Rolled Fe–Mn–Al–Ni Shape Memory Alloy Sheets
(2023-04-25)
The present study focuses on the weldability of hot-rolled Fe–Mn–Al–Ni shape memory alloy sheets by vacuum electron beam welding. Tailored process-specific welding parameters, such as preheating with electron beam or beam oscillation during welding, allowed defect-free joining with very thin weld seams and heat-affected zones. By applying a post-weld cyclic heat treatment, abnormal grain growth can be promoted across the weld seams. However, regardless of the selected welding parameters, some specimens are characterized ...