Essays about: "högfrekvens"

Found 3 essays containing the word högfrekvens.

  1. 1. Niobium Ohmic Contacts for Cryogenic Indium Phosphide High-Electron-Mobility Transistors

    University essay from KTH/Tillämpad fysik

    Author : Linnéa Bendrot; [2022]
    Keywords : Ohmic contacts; high-electron-mobility transistor; InP; Nb films; cryogenic electronics; low-noise amplifier; quantum computing; transfer length method; superconductivity; contact barrier resistance; Ohmska kontakter; högelektronmobilitetstransistorer; indiumfosfid; niob; tunnfilm; kryogen elektronik; lågbrusförstärkare; kvantdatorer; Transfer Length-metod; supraledning; kontakt- barriärresistans;

    Abstract : Ohmic contacts are crucial components in semiconductor devices such as transistors and diodes, and lowering their contact resistance is an important factor in device performance enhancement. This is especially important for low-noise amplifiers (LNAs) where device noise temperature decreases both directly and indirectly with decreasing contact resistance. READ MORE

  3. 2. High frequency rainfall data disaggregation with a random cascade model : Identifying regional differences in hyetographs in Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Louis Rulewski Stenberg; [2021]
    Keywords : Random cascade model; disaggregation; high frequency; rainfall data; hyetograph; spatial transferability; regional differences; Swedish climate; clustering; Slumpmässig kaskadmodell; disaggregering; högfrekvens; regndata; hyetograf; rumslig överförbarhet; regionala skillnader; Sveriges klimat; klustring;

    Abstract : The field of urban hydrology is in need of high temporal resolution data series in order to effectively model and analyse existing and future trends in extreme precipitation. When high resolution data sets are, for any number of reasons, not available for a given location, the technique of disaggregation using a random cascade model can be applied. READ MORE

  4. 3. Evaluation of quantification methods for inclusion distribution in clean steel

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Felicia Fröjd; [2019]
    Keywords : Large area scanning; high frequency ultrasonic testing; light optical evaluation; inclusion distribution;

    Abstract : Ovako products are in many cases used in high fatigue applications. Currently Ovako use ultrasonic evaluation at 10 MHz as a volumetric method for inclusion control. This study intends to investigate two new methods for quantification of micro inclusions. READ MORE