Essays about: "Free Mechanical thesis"

Showing result 21 - 25 of 39 essays containing the words Free Mechanical thesis.

1. 21. Analytical and Numerical Study of a Passive Self-Tuning Resonator

   University essay from Lunds universitet/Mekanik

   Author : Majeed al Tmizi; [2018]
   Keywords : Energy harvesting; mechanical vibrations; passive self-tuning; beam resonators; string resonators; sliding proof-mass; MEMS; actuators; Technology and Engineering;

   Abstract : Energy harvesting, from ambient vibrations, can be a very effective method for solving the problem with powering electronics were the need for constant power or regular battery replacements is a trouble or an inconvenience. But, since all energy harvesters, using mechanical vibrations, need to operate in resonance in order to generate maximal electrical output, and ambient vibrations usually do not have a constant vibration frequency, this results in the need for efficient self-tuning systems. READ MORE

3. 22. Influence of Nitrocarburization on Thermo-Mechanical Fatigue Properties : Material Characterization of Ductile Cast Iron for Exhaust Components

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Wännman Sofia; [2018]
   Keywords : Ductile cast iron; Nitrocarburizing; Thermo-mechanical fatigue;

   Abstract : The large number of vehicles operating on the roads cause high emissions and consequently a negative effect on the environment. When developing and optimizing internal combustion engines, certain requirements must be considered, which are environmental regulations, reduced fuel consumption and increased specific power. READ MORE

4. 23. OLD TO BECOME AS GOOD AS NEW : Pretreatment for gentle shredding

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Catherine Namuga; [2017]
   Keywords : recycling; mechanical recycling; shredding; interfibre friction; fibre length;

   Abstract : In today’s World, sustainability is not just a buzz word but should be the new quality. In order to live in a pollution free environment, there is an urgent need to move towards a circular economy. The rapidly increasing demand of textiles results in high amount of textile waste leading to pollution. READ MORE

5. 24. Micromechanical study of PFZ in aluminum alloys

   University essay from KTH/Hållfasthetslära (Inst.)

   Author : Hossein Shariati; [2016]
   Keywords : precipitate-free zones; strain gradient plasticity; mikromekanik;

   Abstract : There are a number of experiments showing that the ductility of aluminum alloys decreases during age-hardening heat treatment. Observing the grains of age-hardened aluminum alloys at the micron scale, one can notice that there are precipitate-free zones (PFZs) along the grain boundaries. READ MORE

6. 25. Silicon photonics based MEMS tunable polarization rotator for optical communications

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Sandipan Das; [2016]
   Keywords : Silicon photonics; MEMS; Tunable polarization rotator; Polarization beam splitter; Kiselfotonik; MEMS; Flytande polarisationsrotator; polarisationsstr°aldelare;

   Abstract : There has been a huge surge in data traffic all over the world due to the rise of streamingmedia services and connected devices. The current demand in data traffic has alreadypushed the optical fiber in the internet architecture to the network edges and the trend isto push it as close as possible, to the CPU. READ MORE