Ein Ampelphasenassistent ist eine Funktion mit einer großen Nutzerakzeptanz und Kaufbereitschaft durch Verkehrsteilnehmer. Durch eine zunehmende Nutzung von Ampelphasenassistenten wird ein energieeffizienter und damit emissionsarmer städtischer Verkehrsablauf verbunden mit einer Reduktion von Unfällen erwartet. Im Testfeld Kassel des Forschungsprojektes UR:BAN wird deshalb die praktische Umsetz...

Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, United Kingdom (C.N., J.F., H.D.J., C.S., T.K.P., M.D.W., R.A.C.M., P.R.S.); School of Biological Sciences, University of Reading, Whiteknights, Reading, Berkshire RG6 6AH, United Kingdom (J.D.); Swedish University of Agricultural Sciences, SE–750 07 Uppsala, Sweden (A.A.M.A., P.A.); and INRA, UR 1268 Biopolymères, Interactions et Assemblag...

BACKGROUND AND PURPOSE Metal artifacts from dental fillings and other devices degrade image quality and may compromise the detection and evaluation of lesions in the oral cavity and oropharynx by CT. The aim of this study was to evaluate the effect of iterative metal artifact reduction on CT of the oral cavity and oropharynx. MATERIALS AND METHODS Data from 50 consecutive patients with metal ...

For decades, computed tomography (CT) images have been widely used to discover valuable anatomical information. Metallic implants such as dental fillings cause severe streaking artifacts which significantly degrade the quality of CT images. In this paper, we propose a new method for metal-artifact reduction using complementary magnetic resonance (MR) images. The method exploits the possibilitie...

Subject was to evaluate techniques for the reduction of metal artifacts in X-ray computed tomographies (CT). Compared to simulated CT projection data, real measurements allowed less improvements in image quality. Neither could metal artifacts be eliminated completely, nor was there a signiicant gain regarding the presentation of anatomical structures in the immediate neighbourhood of metal obje...

Spectroscopy of cervical diskectomy specimens obtained from sheep demonstrated that metallic susceptibility artifacts are produced by microscopic amounts of nickel, copper, and zinc. Sufficient quantities of metals to produce artifacts are deposited only by contact of metal drill bits and suction tips. If these instruments do not come in contact during surgery, susceptibility artifacts are not ...

State Key Laboratory of Crop Genetics and Germplasm Enhancement, Horticultural College, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China (D.X., X.H.); Wageningen UR Plant Breeding (D.X., R.K.B., K.L., G.B.) and Biometris (H.W.), Wageningen University and Research Centre, Wageningen 6700AJ, The Netherlands; Horticultural College, Hebei Agricultural University, Baoding 071001, Chin...

Under the standard approach to UR discovery (Chomsky and Halle 1968; Kenstowicz and Kisseberth 1977), it is assumed that whenever possible, surface contrasts should be derived in a lawful way from underlying distinctions. In other words, if a surface contrast ([A] vs. [B]) can be distinguished using an underlying difference (/A/ vs. /B/), this is preferable to using some other technique, such a...