60 Technik
Filtern
Erscheinungsjahr
Dokumenttyp
Volltext vorhanden
- ja (33)
Gehört zur Bibliographie
- nein (33)
Schlagworte
- Elektromobilität (3)
- Rapid Prototyping <Fertigung> (3)
- additive manufacturing (3)
- 3D-Druck (2)
- Biokatalyse (2)
- Biotechnik (2)
- CO2 (2)
- Dach (2)
- Elektrode (2)
- Elektrofahrzeug (2)
- Enzym (2)
- Flüssigkristalline Polymere (2)
- Fotovoltaik (2)
- Fused Deposition Modeling (2)
- Industrie 4.0 (2)
- Magnetabscheider (2)
- Magnetische Eigenschaft (2)
- Magnetisches Trennverfahren (2)
- Magnetisierung (2)
- Messung (2)
- Parkinson-Krankheit (2)
- Personenkraftwagen (2)
- Radar (2)
- Rauigkeit (2)
- Reinigungsverfahren (2)
- Thailand (2)
- biocatalysis (2)
- climate policy (2)
- efficiency trade-offs (2)
- electrode model (2)
- industry 4.0 (2)
- magnetic filtration (2)
- magnetic particles (2)
- surface roughness (2)
- 24 GHz FMCW radar (1)
- 24 GHz ISM-band (1)
- 2D-FFT (1)
- 3D printing (1)
- ALAN (1)
- Algorithmus (1)
- Arbeitssicherheit (1)
- Astrozyt (1)
- Atmung (1)
- Automation (1)
- BASF Ultrafuse (1)
- BEV (1)
- Bewegung (1)
- Bewegungsstörung (1)
- Biofilm (1)
- CO2 emissions (1)
- CO2-Bilanz (1)
- Carrier (1)
- Charpy impact energy (1)
- Cyanobakterien (1)
- Datenausgabe (1)
- Deere & Company (1)
- Depression (1)
- Dieselkraftstoff (1)
- Eckenverrundung (1)
- Elektrischer Leiter (1)
- Elektrisches Kabel (1)
- Elektroantrieb (1)
- Elektrokortikogramm (1)
- Elektrophysiologie (1)
- Energie (1)
- Energiemodell (1)
- Energiespeicher (1)
- Essenzieller Tremor (1)
- European diesel car boom (1)
- Evolventenverzahnung (1)
- Extruder (1)
- FMCW-Radar (1)
- Fertigung (1)
- Festigkeit (1)
- Finite-Elemente-Methode (1)
- Frequenzumsetzung (1)
- Frequenzverdopplung (1)
- GHG accounting and reporting (1)
- Ganganalyse (1)
- Gehen (1)
- Geometrie (1)
- Halbleiterlaser (1)
- Helix (1)
- Herz (1)
- Hirnstimulation (1)
- Hochfrequenz (1)
- Hochgeschwindigkeit (1)
- Hochverzahnung (1)
- ISM <Frequenzbereich> (1)
- Industrie (1)
- Industrieroboter (1)
- Insekten (1)
- K2Al2B2O7 (1)
- KABO (1)
- Klimaschutz (1)
- Klimaänderung (1)
- Koaxialkabel (1)
- Kohlendioxidemission (1)
- Konfokale Mikroskopie (1)
- Kopfkürzung (1)
- Kristall (1)
- Kunststoff (1)
- Kupfer (1)
- Landwirtschaft (1)
- Laser (1)
- Laser-Rastermikroskopie (1)
- Lasertechnologie (1)
- Latenzzeit <Informatik> (1)
- Leistung (1)
- Lichtverschmutzung (1)
- Logistik (1)
- MATLAB (1)
- MBBR (1)
- Magnetische Stimulation (1)
- Markforged (1)
- Maschinelles Sehen (1)
- Materialermüdung (1)
- Mensch-Maschine-Schnittstelle (1)
- Modul (1)
- Monte Carlo simulation (1)
- Monte-Carlo-Simulation (1)
- NLO crystals (1)
- NLO-Kristall (1)
- Nachhaltigkeit (1)
- Nervenkrankheit (1)
- Nichtlineare Optik (1)
- Nullemission (1)
- Numerische Strömungssimulation (1)
- OCT (1)
- OLED (1)
- OLED latency (1)
- Optische Kohärenztomografie (1)
- Organischer Stoff (1)
- PETG (1)
- PV system (1)
- Patient (1)
- Patientenüberwachung (1)
- Pedografie (1)
- Photoreaktor (1)
- Profilverschiebung (1)
- Psychometrie (1)
- Punktetransfer (1)
- RF attenuation (1)
- Reaktionszeit (1)
- Recycling (1)
- Reinigung (1)
- Robotik (1)
- Rotationsdispersion (1)
- Ruß (1)
- Schrägverzahnung (1)
- Selektives Laserschmelzen (1)
- Sensor (1)
- Signalverarbeitung (1)
- Sitzen (1)
- Stereokamera (1)
- Stirnrad (1)
- Synthetische Apertur (1)
- Tesselation (1)
- Tesselierung (1)
- Transkranielle magnetische Stimulation (1)
- Transporttechnik (1)
- Trennung (1)
- Trochoide (1)
- Universität (1)
- Verdrillung <Elektrotechnik> (1)
- Verschleißprüfung (1)
- Wassertiere (1)
- Wellenlänge (1)
- Windturbine (1)
- Wälzfräsen (1)
- X-ray microtomography (1)
- YAB (1)
- YAl3(BO3)4 (1)
- Zahnkopfspiel (1)
- Zahnrad (1)
- Zahnradherstellung (1)
- Zentralnervensystem (1)
- agriculture manufacturing (1)
- aquatic subsidies (1)
- astrocytes (1)
- battery electric vehicles (1)
- biocarrier (1)
- biofilm (1)
- black carbon (1)
- carbon footprinting (1)
- carbon offsetting (1)
- carrier (1)
- charge storage capacity (CSCc) (1)
- climate change mitigation (1)
- coaxial (1)
- cognitive performance assessment (1)
- computational fluid dynamics (1)
- computer vision (1)
- confocal microscopy (1)
- control systems (1)
- copper conductors (1)
- cortical electrical stimulation (1)
- cortical stimulation (1)
- cost-benefit analysis (1)
- cross-ecosystem (1)
- cyanobacteria (1)
- deep brain stimulation (1)
- diesel emissions (1)
- distributed-feedback (1)
- e-bikes (1)
- e-boards (1)
- electric cars (1)
- electric conversion (1)
- electric kick scooters (1)
- electric light commercial vehicles (1)
- electric motorcycles (1)
- electric three- and four-wheelers (1)
- electric trucks (1)
- electric vehicles (1)
- electrical drive (1)
- electricity (1)
- electrocorticogram (1)
- electrode impedance (1)
- electromobility (1)
- electroplating (1)
- energy (1)
- energy impacts (1)
- energy modeling (1)
- energy storage system (1)
- energy system (1)
- energy system modeling (1)
- environmental effect (1)
- enzyme (1)
- enzyme purification (1)
- far range measurement (1)
- fatigue properties (1)
- filament extruder (1)
- finite element method (1)
- foot pressure sensors (1)
- frequency back projection (FBP) (1)
- frequency conversion (1)
- fuel cell vehicles (1)
- fused deposition modeling (1)
- global warming potential (1)
- greenhouse gas emissions (1)
- heartbeat (1)
- heat (1)
- high speed (1)
- high-gradient magnetic separation (1)
- high-gradient magnetic separator (1)
- higher education institutions (1)
- human gait (1)
- human-machine interaction systems (1)
- hyperloop (1)
- in vivo two-photon laser-scanning microscopy (1)
- industrial development (1)
- insects (1)
- internal combustion engine vehicle (1)
- inversion twin (1)
- laser materials processing (1)
- lasers (1)
- life cycle assessment (1)
- light pollution (1)
- liquid crystal polymer electrodes (1)
- material extrusion (1)
- mechanical testing (1)
- mobility impacts (1)
- modeling (1)
- movement disorders (1)
- near range measurement (1)
- neuron-glia interaction (1)
- observation (1)
- optical activity (1)
- optical coherence tomography (1)
- optical rotatory dispersion (1)
- optimization (1)
- organic materials (1)
- output impedance (1)
- passenger cars (1)
- per capita carbon footprint (1)
- photobioreactor (1)
- plastics recycling (1)
- platinum (1)
- plug-in hybrid electric vehicle (1)
- pose estimation (1)
- power curve anomalies (1)
- power curve health value (1)
- predator-prey (1)
- pulsed current (1)
- radar (1)
- radiative forcing (1)
- ratepayer (1)
- reaction time measurement (1)
- real-world emissions (1)
- renewable energy (1)
- respiration rate (1)
- risk of falls (1)
- robots (1)
- rooftop (1)
- rooftop PV (1)
- seated patient (1)
- second harmonic generation (1)
- semiconductor lasers (1)
- sensitivity analysis (1)
- signal processing algorithm (1)
- spectral estimation (1)
- stereoscopic cameras (1)
- stimulator characterization (1)
- stimulator model (1)
- stl (1)
- strategy (1)
- sustainable mobility (1)
- sustainable road transport (1)
- synthetic aperture radar (SAR) (1)
- tensile strength (1)
- traffic emissions (1)
- transmission phase (1)
- transport (1)
- transport safe (1)
- transportation technology (1)
- tremor (1)
- twisted-pair (1)
- ultrasound (1)
- university carbon footprint (1)
- university sustainability (1)
- urban mobility (1)
- utility (1)
- vehicle mass (1)
- vehicle power (1)
- visible lasers (1)
- volume holographic gratings (1)
- wear-level monitoring (1)
- wearable motion sensors (1)
- wind turbine (1)
- zero emission university (1)
- µCT (1)
In this paper two simple synthetic aperture radar (SAR) methods are applied on data from a 24 GHz FMCW radar implemented on a linear drive for educational purposes. The data of near and far range measurements are evaluated using two different SAR signal processing algorithms featuring 2D-FFT and frequency back projection (FBP) method (Moreira et al., 2013). A comparison of these two algorithms is performed concerning runtime, image pixel size, azimuth and range resolution. The far range measurements are executed in a range of 60 to 135 m by monitoring cars in a parking lot. The near range measurement from 0 to 5 m are realised in a measuring chamber equipped with absorber foam and nearly ideal targets like corner reflectors. The comparison of 2D-FFT and FBP algorithm shows that both deliver good and similar results for the far range measurements but the runtime of the FBP algorithm is up to 150 times longer as the 2D-FFT runtime. In the near range measurements the FBP algorithm displays a very good azimuth resolution and targets which are very close to each other can be separated easily. In contrast to that the 2D-FFT algorithm has a lower azimuth resolution in the near range, thus targets which are very close to each other, merge together and cannot be separated.
Geometrieerzeugung von Evolventenzahntrieben: Profilverschobene schrägverzahnte Stirnzahnräder
(2022)
In dieser Arbeit wird die Zahnradgeometrie von Stirnrädern berechnet und formatiert, um sie in ein CAD-Programm zu übertragen. Dabei werden die Konturen der Evolvente und der Trochoide nach den gleichen Regel wie bei der Herstellung durch Wälzfräsen erzeugt. Der Anwender hat die Möglichkeit die Haupteigenschaften wie Modul, Zahnkopfspiel und Eckenverrundung einzugeben. Zusätzlich können auch schrägverzahnte, profilverschobene Stirnräder mit Hochverzahnung und Kopfkürzung erzeugt werden.
Per Datenausgabe werden die Koordinaten gespeichert und durch ein Makro in das CAD-Programm übertragen. Aus den beiden Konturzügen wird der 3D-Körper durch Austragen entlang der Helix erzeugt.
Zur Weiterverarbeitung wird die Zahnradgeometrie nach manueller Tesselierung in ein universales Dateiformat exportiert.
In this paper, the mechanical damage behavior is investigated based on the characteristic roughness on the surface and the orientation of superficial structures. The main goal is to explore the surface roughness on mechanically loaded copper conductors as a lifetime indicator. For this purpose, copper conductors are mechanically stressed in accordance with EN 50,396 and then examined metallographically and microscopically. The microstructure examination shows that the roughness is caused by material extrusion and cracks due to work hardening in the surface area. Using confocal microscopy, it is shown for the first time that significant formation of surface roughness takes place over the service life of copper conductors. The roughness increases monotonically, but not linearly with number of cycles, due to internal microstructural processes and can be divided into three sections. First inspections of the conductor surface over lifetime show a correlation between the intensity of structures orientated 45° to the loading direction and the roughness. This phenomenon, already known from microscopic slip lines, is thus also evident in macroscopic roughness formation and is well founded by the research theory on material extrusion along dislocation lines. In summary, a lifetime determination is possible based on its developing roughness which enables the utilization as a sensor element.