Comparing the Recommendations of Buyers of Energy-Efficient and Inefficient Vacuum Cleaners

Although environmental awareness is increasing every year, and most people say they prefer to buy more sustainable products, many still do not act on their promise at the cash counter. Sustainable products are often still perceived to have lower quality or reduced performance. Recom- mendations of sustainable buyers might reduce this perceived...

Application of in-situ liquid cell transmission electron microscopy in corrosion studies: a critical review of challenges and achievements

Identifying corrosion initiation events in metals and alloys demands techniques that can provide temporal and spatial resolution simultaneously. Transmission electron microscopy (TEM) enables one to obtain microstructural and chemical descriptors of materials at atomic/nanoscopic level and has been used in corrosion studies of many metal...

Optical Spectroscopy for Biofuel Composition Sensing

The optical absorption of water-containing bio-fuel is investigated as a parameter to determine the gasoline content of this fuel. Optical measurements reveal that gasoline shows an interesting and useful spectrum with typical absorption behavior in the UV range between 230 and 300 nm. This result indicates that significant information can be...

Analyse van een Veilige en Vlotte Doorvaart voor Rondvaartboten in Amsterdam

Unifying and Generalizing Relations in Role-Based Data Modeling and Navigation

Object-oriented programming languages support concise navigation of relations represented by references. However, relations are not first-class citizens and bidirectional navigation is not supported. The relational paradigm provides first-class relations, but with bidirectional navigation through verbose queries. We present a systematic analysis...

Domain-Specific Languages for Composable Editor Plugins

This paper is a pre-print of: Lennart C. L. Kats, Karl T. Kalleberg, Eelco Visser. Domain-Specific Languages for Composable Editor Plugins. In T. Ekman and J. Vinju, editors, Proceedings of the Ninth Workshop on Language Descriptions, Tools, and Applications (LDTA’09), Electronic Notes in Theoretical Computer Science. York, United Kingdom, March...

Advances in one-dimensional numerical breach modeling of sand barriers

A hydrodynamic numerical model is formulated to describe the breach erosion process of sandy barriers. The breach flow is based on the system of unsteady shallow water equations, which is solved using a robust upwind numerical approach in conjunction with the Finite Volume Method (FVM). The hydraulic jump is considered as part of the breach flow...

Cassettes in Roll-on Roll-off transport

Guidelines for the Man-Machine Interface design of the crew workstation in Columbus

In the future Columbus in-space facility, the communication between the crew and the various system elements will mainly take place via the so called Crew Workstation (CWS). The CWS hardware will comprise a versatile set of I/O devices which enable the clear and unequivocal presentation of information to, and the easy issue of commands by crew...