4 research outputs found
Applicability of an integral design approach based on steering by aspect systems in the construction industry
No full textThe project leader of the design team controls and steers the design process in order to make a successful design with a balanced mix of aspects and has to adapt to complexity and the dynamic character of the design process. How should a design management approach based on steering by aspect systems be put into practice to improve coping with uncertainty, change and complexity in the design process of complex integral civil engineering projects?Construction Management and EngineeringBouwCivil Engineering and Geoscience
Thin plate buckling mitigation and reduction challenges for naval ships
No full textThin plate buckling or distortion on ship structures is an ongoing issue for shipbuilders. It has been identified that a significant number of factors can be put in place based on prior knowledge and good practice. Additionally, research work aimed at reducing thin plate distortion has been relatively prolific, particularly in the area of simulation modelling. However, the uptake in the research findings by industry has been relatively low. A number of these findings are discussed and their application considered. For any further reductions in thin plate distortion to be generated there is a clear need for better interaction between the research institutes and the industry
Commissioning status of the Virgo interferometer
No full textAn Erratum for this article has been published in 2010 Class. Quantum Grav. 27 149801 (The full author list for this article was omitted in error).International audienceThe Virgo interferometer is one of the big observatories aimed at detecting gravitational waves. This paper will describe the Virgo + upgrades and the commissioning work performed between the first Virgo science run (VSR1) and the second Virgo science run (VSR2). Some first results of VSR2 will be discussed, which was recently started with a good duty cycle and an inspiral range for the detection of binary neutron-star inspirals of 10 Mpc. To conclude, an outlook will be given on some future upgrades of the detector
Noise from scattered light in Virgo's second science run data
No full textVirgo is one of the large, ground-based interferometers aimed at detecting gravitational waves. One of the technical problems limiting its sensitivity is caused by light in the output beams which is backscattered by seismically excited surfaces and couples back into the main beam of the interferometer. The resulting noise was thoroughly studied, measured and mitigated before Virgo's second science run (VSR2). The residual noise during VSR2, which increases in periods with a large microseism activity, is accurately predicted by the theoretical model. The scattered light has been associated with transient events in the gravitational-wave signal of the interferometer
