Essays about: "acoustic emission"

Showing result 6 - 10 of 29 essays containing the words acoustic emission.

1. 6. Development and characterization of tissue-mimicking phantom materials for photoacoustic imaging

   University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Author : Chen Xu; [2019]
   Keywords : Physics and Astronomy;

   Abstract : Tissue-mimicking phantoms are of great interest in the development of bio-medical applications. Instead of applying to biological tissues directly, phantoms enable stable and easy accessibility to validate spectroscopy systems and measuring processes. This thesis project is centered on the development and characterization of phantoms. READ MORE

3. 7. High Temperature Tribology in Hot Stamping

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Evan Kurnia; [2019]
   Keywords : high temperature tribology; hot stamping; acoustic emission; condition monitoring; hardfacing;

   Abstract : Many automotive components are made of Al-Si coated ultra-high strength boron steel (UHSS) and are produced by hot stamping process. In this process, the workpiece is heated to an austenitizing temperature and is then formed and quenched simultaneously between the tools to achieve the desired shape and high strength. READ MORE

4. 8. A Linear, Wide-band, Low-Power Receiver for Narrowband- Internet of Things (NB-IoT)

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Rohan Raghunath; Ghanashyam Ravindranath Prabhu; [2018]
   Keywords : NB-IoT; FTNC; Harmonic rejection; N-path filtering; RX Front End; Low power; Wide-band; Passive mixer; Current mode; Technology and Engineering;

   Abstract : Advancement of technology with the aid of new application, wireless communication has grown rapidly in the past two decades. Recently, in the wireless communication industry, Narrowband- Internet of Things (NB-IoT) is being discussed by everyone, as the most important emerging technology of the day. READ MORE

5. 9. Hertz contact influence on acoustic emission signals originating in radial bearings : Test rig construction and experimental evaluation

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Joel Klippås; [2018]
   Keywords : Hertz contact; Acoustic emission; Radial bearings;

   Abstract : During the project a test rig was constructed in which experiments were performed on radial bearings to evaluate the acoustic emission amplitude and RMS value of the signal. The acoustic emission amplitude depends on the Hertz contact time, i.e. the time it takes for the Hertz contact to roll over its own contact length. READ MORE

6. 10. ThermoacousticInstabilities in a Gas Turbine Combustor

   University essay from KTH/MWL Marcus Wallenberg Laboratoriet

   Author : Karl Bengtsson; [2017]
   Keywords : ;

   Abstract : Stationary gas turbines are widely used today for power generation and mechanical drive applications. The introduction of new regulations on emissions in the last decades have led to extensive development and new technologies used within modern gas turbines. READ MORE