Essays about: "active vacuum"

Showing result 1 - 5 of 12 essays containing the words active vacuum.

  1. 1. The active phase of Pt(110) during catalytic CO oxidation

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

    Author : Hira Qazilbash; [2024]
    Keywords : Physics and Astronomy;

    Abstract : CO oxidation is an important topic in heterogeneous catalysis, due to its role in industrial processes such as pollution reduction in the auto industry, and ethanol or other fuel production. In the automotive catalytic converters CO oxidation reduces the poisonous CO to CO2 by reacting with O2. READ MORE

  3. 2. The evidence base of elevated vacuum and pin-lock suspension system in transtibial prosthetic users: A literature review with a systematic approach

    University essay from Jönköping University/HHJ. Ortopedteknisk plattform

    Author : Louise Dömstedt; Malin Stafås; [2022]
    Keywords : transtibial prosthetics; transtibial suspension method; elevated vacuum; active vacuum; pin-lock;

    Abstract : Aim: This review aims to describe the existing evidence base for using elevated vacuum suspension and pin-lock suspension systems in regards to fluctuations of limb volume, balance, effect on gait (spatial and temporal, kinematic, and kinetic data), and in-socket movement (pistoning and transverse forces). Background: There is a growing population with a TT amputation thus there is an increased demand for TT prosthetic solutions. READ MORE

  4. 3. Study of Environmental Effects on Photo-MultiplierTubes for the X-ray Polarimetry Mission XL-Calibur

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Jonathan Karlsson; Sebastian Alveteg; [2021]
    Keywords : ;

    Abstract : XL-Calibur is a balloon-borne hard X-ray polarimetry mission with goals to analyze celestial objects too small and distant to be imaged. A crucial part of XL-Calibur is the anti-coincidence shield which through active collimation reduces unwanted hits when gathering data. READ MORE

  5. 4. Exploring the mechanics of power in Swedish forest management : narratives by self-proclaimed critics’ and their understanding of the power dynamics transforming the Swedish forest landscape

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Max Whitman; [2020]
    Keywords : power; power relations; forest; forest industry; environmental goals; narratives; values;

    Abstract : The Swedish forest landscape is being transformed as more natural forests are replaced by production ones, increasing the number of threatened species. As a result, Sweden will neither fulfil its national nor its international environmental goals connected to the forest. READ MORE

  6. 5. Thermomechanical Design and Analysis of the Lisa Phase Measurement System

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Pablo Martinez Cano; [2019]
    Keywords : LISA; PCB; temperature; passive; aluminum; aluminium;

    Abstract : Gravitational Waves (GWs) are ripples in the curvature of spacetime that propagate as waves at the speed of light while travelling basically undisturbed from the moment of their creation by accelerated masses. GWs provide unique information about astrophysical sources, such as binary systems, allowing their exploration under a wide range of masses, mass ratios and physical states inaccessible otherwise and therefore opening a new window to observe the universe. READ MORE