Refine
Year of publication
- 2009 (179) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (66)
- IfB - Institut für Bioengineering (29)
- Fachbereich Elektrotechnik und Informationstechnik (27)
- INB - Institut für Nano- und Biotechnologien (26)
- Fachbereich Luft- und Raumfahrttechnik (18)
- Fachbereich Chemie und Biotechnologie (16)
- Fachbereich Energietechnik (12)
- Solar-Institut Jülich (12)
- Fachbereich Maschinenbau und Mechatronik (8)
- Fachbereich Bauingenieurwesen (6)
Has Fulltext
- no (179) (remove)
Language
- English (179) (remove)
Document Type
- Article (121)
- Conference Proceeding (44)
- Part of a Book (7)
- Book (3)
- Conference: Meeting Abstract (1)
- Doctoral Thesis (1)
- Patent (1)
- Talk (1)
Keywords
- Papierkunst (3)
- Spacecraft (2)
- Aktionskunst (1)
- Business Engineering (1)
- EGG (1)
- Hybrid Propellants (1)
- Interplanetary flight (1)
- Larynx position (1)
- Next Generation Network (1)
- Reusable Rocket Engines (1)
- Studienarbeit (1)
- Telecommunication (1)
- Tomography (1)
- Transfer impedance (1)
- Voice assessment (1)
- avalanche (1)
- cardiac gating (1)
- cardiovascular MR imaging (1)
- electrocardiogram (1)
- high field MR imaging (1)
- phonocardiogram (1)
- snow (1)
- solar sails (1)
Next Generation Access Networks: Why is there a higher risk of investment and how to deal with it?
(2009)
Operator
(2009)
Solar-electric propulsion (SEP) is superior with
respect to payload capacity, flight time and
flexible launch window to the conventional
interplanetary transfer method using chemical
propulsion combined with gravity assists. This fact
results from the large exhaust velocities of electric
low–thrust propulsion and is favourable also for
missions to the giant planets, Kuiper-belt objects
and even for a heliopause probe (IHP) as shown in
three studies by the authors funded by DLR. They
dealt with a lander for Europa and a sample return
mission from a mainbelt asteroid [1], with the
TANDEM mission [2]; the third recent one
investigates electric propulsion for the transfer to
the edge of the solar system.
All studies are based on triple-junction solar arrays,
on rf-ion thrusters of the qualified RIT-22 type and
they use the intelligent trajectory optimization
program InTrance [3].
Physical layer specification of the L-band Digital Aeronautical Communications System (L-DACS1)
(2009)
Projection
(2009)
Risk factors for cardiovascular calcifications in non-diabetic Caucasian haemodialysis patients
(2009)
The monolithic scintillator block approach for gamma detection in the Positron Emission Tomography (PET) avoids estimating Depth of Interaction (DOI), reduces dead zones in detector and diminishes costs of detector production. Neural Networks (NN) are very efficient to determine the entrance point of a gamma incident on a scintillator block. This paper presents results on the robustness of the spatial resolution as a function of the random fraction in the data, temperature and HV fluctuations. This is important when implementing the method in a real scanner. Measurements were done with two Hamamatsu S8550 APD arrays, glued on a 20 Ã 20 Ã 10 mm3 monolithic LSO crystal block.
Self-Adjoint Operator
(2009)