7 research outputs found
Putting Socrates back in Socratic method: Theory‐based debriefing in the nursing classroom
No full textThe Effect of Cognitive Behavioral Therapy and Nicotine Replacement Therapy Centered Smoking Intervention and Abstention Factors
No full textAnterior pallidal deep brain stimulation for Tourette's syndrome: a randomised, double-blind, controlled trial
No full textInternational audienc
Body Mass Index, Perceived Health, and Happiness: Their Determinants and Structural Relationships
No full textIn-orbit performance of Herschel-HIFI
Get PDFAims: In this paper the calibration and in-orbit performance of the Heterodyne Instrument for the Far-Infrared (HIFI) is described. Methods: The calibration of HIFI is based on a combination of ground and in-flight tests. Dedicated ground tests to determine those instrument parameters that can only be measured accurately using controlled laboratory stimuli were carried out in the instrument level test (ILT) campaign. Special in-flight tests during the commissioning phase (CoP) and performance verification (PV) allowed the determination of the remaining instrument parameters. The various instrument observing modes, as specified in astronomical observation templates (AOTs), were validated in parallel during PV by observing selected celestial sources. Results: The initial calibration and in-orbit performance of HIFI has been established. A first estimate of the calibration budget is given. The overall in-flight instrument performance agrees with the original specification. Issues remain at only a few frequencies. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA
