Essays about: "Vibration"

Showing result 1 - 5 of 344 essays containing the word Vibration.

  1. 1. Hi-Vision - en arbetsmiljöstudie

    University essay from SLU/School for Forest Management

    Author : Mikael Dahlquist; [2019]
    Keywords : virtual reality; timmerlasbilar; helkroppsvibrationer;

    Abstract : Ever since the chainsaw was introduced on a broad market during the 1950s, the effects of new technology on efficiency and work environment has been studied. Today we stand before a paradigm shift of how we operate logging cranes on timber trucks. READ MORE

  2. 2. Micro-Shivering Detection : Detection of human micro-shivering using a 77 GHz radar

    University essay from Högskolan i Halmstad/Akademin för informationsteknologi; Högskolan i Halmstad/Akademin för informationsteknologi

    Author : Elyas Razzaghi; Arno Van Hoek; [2019]
    Keywords : micro-shivering; vibration; vital signs; mmwave radar; fmcw radar; chirp signal; snr; phase accuracy;

    Abstract : Radars have been under steady development to track, identify, image, and classify targets. Modern radar systems, with the help of embedded systems, have additional comprehensive signal processing capabilities. They can extract useful information from very noisy data, e.g. READ MORE

  3. 3. Vibration analysis for condition monitoring of mechanical presses

    University essay from Lunds universitet/Industriell Produktion

    Author : Julia Runesson; [2019]
    Keywords : Vibration analysis; Predictive maintenance; Condition monitoring; Mechanical press; Press maintenance; PSD; DFT FFT; RMS; Kurtosis; Technology and Engineering;

    Abstract : In a world where the concept of just-in-time has been lifted outside of the manu-facturing world and onto the market, the increasing demand of luxury wares like cars is accompanied only by tougher industrial conditions and no room for error. Loss of productivity and decrease in efficiency can be devastating to any manufac-turing company in today’s market climate. READ MORE

  4. 4. Charge transport in a Hubbard-Holstein junction: Preliminary results from a DFT approach.

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Eric Ceccarelli; [2019]
    Keywords : Density functional theory; DFT; Hubbard-Holstein; Hubbard-Holstein model; HH; Quantum transport; Physics and Astronomy;

    Abstract : Many-body systems are extremely complicated to describe due to mutual interactions between the constituent particles. This is for example the case of systems with electron-electron (e-e) and electron-phonon (e-ph) interactions. READ MORE

  5. 5. Remote control of mechanical rat traps based on vibration and audio sensors

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Denis Solak; Amin Storani; [2019]
    Keywords : Technology and Engineering;

    Abstract : The main aim with this master’s thesis was to study the possibilities of detecting an event (rat trap going off) by analyzing audio streams from a MEMS (micro-electromechanical systems) microphone or movement patterns from a MEMS accelerometer. To achieve this goal, a small, power efficient and cost efficient embedded system was built with the help of a development board, a MEMS accelerometer, a MEMS microphone and a metal box where the equipment and the rat traps were placed and positioned. READ MORE