Fast topology optimization for transient mechanical problems

Topology optimization is increasingly used as a design tool in engineering. Within structural mechanics, most applications focus on statics. An extension to time-domain (transient) dynamics will have many useful applications, but this is currently hindered by high computational costs. The goal of this research is to reduce these costs by...

Structural Reliability of Seismic Design Methodologies for Shear Walls and Distributors in Reinforced Concrete Buildings

The intent of US design codes is to design buildings with uniform reliability regardless of the building type, location, or design approach. However, it is unlikely that risk-consistency is achieved for different design approaches, as differences and discrepancies between these design methodologies exist. This study focused on the structural...

Characterization of alteration and mineralization of Chimu Formation quartzite with near-infrared spectroscopy

The use of sensor based technology to distinguish in real-time between economic and sub-economic material could contribute to the optimization of the technology and economics behind mining operations. The goal of this study is to contribute to the development of a near-infrared sensor-based pre-sorting ore classification model. This study is...

Modelling nearshore currents driven by waves and set-up gradients

During the fall of 2003, an extensive measurement campaign called the “Nearshore Canyon Experiment” (NCEX) was set up along the coast of La Jolla, California. The project site covered an area in which two submarine canyons are located, respectively La Jolla and Scripps Submarine Canyon. Over 20 institutions collaborated on recording the...

Medium size shear box testing to determine the shear strength of Bremanger rock fill

Fieldwork coastal engineering: Preliminary design of a floating marina, Varna, Bulgaria

The beach in front of the hotel Sirius is suffering from a retreating coastline. Bathymetry and beach profiles were measured. With the data from previous years the long term evolution of the coast was analyzed. The main conclusions were that the beach in front of the Sirius hotel is still suffering from erosion and if this erosion trend...

Stability of single layer armour units on low-crested structures

Two dimensional physical model tests are executed with Xbloc armour units on low crested structures to answer the objective. On the basis of findings in the literature study it can be expected that the stability of the Xbloc elements on low-crested breakwaters is a function of crest freeboard and crest width. The crest freeboard (Rc/Dn) varied...

The Influence of Teleoperator Stiffness and Damping on Object Discrimination

Human task performance using teleoperator systems depends on the physical and controlled parameters of the system. Two teleoperated grasping tasks—size and stiffness discrimination—were studied to investigate how changes in system parameters influence human capabilities. The device characteristics altered were teleoperator stiffness (size and...

Akoestische aspecten in klaslokalen met betonkernactivering

Two-legged body

The invention relates to a two-legged body comprising at least two legs, an oscillation element and a connecting element for the mutual coupling of the legs and the oscillation element, wherein the legs are pivotable in relation to the connecting element and during operation undergo a reciprocating angular displacement in relation to the...

Silicofluoride-plant: Van fluorwasser tot eindprodukt

Numeriek model voor de ontwikkeling van vrije meanders in de Tana-rivier

Vrij meanderende rivieren veroorzaken grote problemen voor de aangrenzende gebieden, vanwege de vaak onvoorspelbare en onverwachte veranderingen in de oeverlijnen in betrekkelijk korte tijd. Een van die rivieren is de Tana-rivier in Kenia, waarvan de benedenloop door z'n sterk meanderende. karakter een bedreiging vormt voor diverse in cultuur...

Onderzoek naar de mogelijkheden van 2-baksduwvaart op de Gelderse IJssel: De bocht bij Gorssel

In dit rapport zal worden gekeken naar de mogelijkheden van 2-baksduwvaart op de Gelderse IJssel, waar op het ogenblik alléén éénbaksduwvaart plaatsvindt. Waar in lit. [1]slechts een beschouwing plaatsvond over duwvaart op de Gelderse IJssel tussen Westervoort en Zutphen zal hier worden gekeken naar een onderdeel van het traject Zutphen-Zwolle,...

An experimental study on the use of manganese oxide on (gamma)-alumina acceptors for flue gas desulfurization

Heerenveen centrum

Ontwerp rookgasontzwavelingsinstallatie

Document(en) uit de collectie Chemische Procestechnologie

Sapzuivering in een sulfitatiefabriek

Document(en) uit de collectie Chemische Procestechnologie.