Essays about: "Sigma phase"

Showing result 16 - 20 of 25 essays containing the words Sigma phase.

  1. 16. Design and Simulation of Miscellaneous Blocks of an All-Digital PLL for the 60 GHz Band

    University essay from Elektroniksystem; Tekniska högskolan

    Author : Hadiyah Butt; Manjularani Padala; [2013]
    Keywords : ADPLL; PLL; DCO; TDC;

    Abstract : A phase-locked loop commonly known as PLL is widely used in communication systems. A PLL is used in radio, telecommunications, modulation and demodulation. It can be used for clock generation, clock recovery from data signals, clock distribution and as a frequency synthesizer. Most electronic circuits encounter the problem of the clock skew. READ MORE

  3. 17. Phase Field modeling of sigma phase transformation in duplex stainless steels : Using FiPy-Finite Volume PDE solver

    University essay from KTH/Materialvetenskap

    Author : Venkata Sai Pavan Kumar Bhogireddy; [2013]
    Keywords : Phase field; Duplex Stainless steels; Sigma phase;

    Abstract : Duplex Stainless Steels (DSS) are used extensively in various industrial applications where the properties of both austenite and ferrite steels are required. Higher mechanical strength and superior corrosion resistance are the advantages of DSS. READ MORE

  4. 18. A MODEL FOR HOW TO DECREASE VARIATION IN A PRODUCTION PROCESS - A CASE STUDY

    University essay from Institutionen för teknik, TEK

    Author : Tony Sörensen; Niclas Freijd; [2012]
    Keywords : six sigma; Lean; improvement;

    Abstract : The purpose of this bachelor thesis is to develop a generic model to be applied on to a Swedish company. In order to reduce variations in quality, production time and work routines.  The study starts by investigation of the relevance of this thesis and continues with providing relevant theories on the subject. READ MORE

  5. 19. Investigation of Mechanisms for Spur Generation in Fractional-N Frequency Synthesizers

    University essay from Elektroniksystem; Tekniska högskolan

    Author : Sohail Imran Saeed; [2012]
    Keywords : DDSM; Digital Delta Sigma Modulator; EFM; Error Feedback Modulator; PLL Phase Locked Loop; Fractional N Frequency Synthesizer; Spur; Spurs;

    Abstract : With the advances in wireless communication technology over last two decades, the use of fractional-N frequency synthesizers has increased widely in modern wireless communication applications due to their high frequency resolution and fast settling time. The performance of a fractional-N frequency synthesizer is degraded due to the presence of unwanted spurious tones (spurs) in the output spectrum. READ MORE

  6. 20. Precipitation Study in a High Temperature Austenitic Stainless Steel using Low Voltage Energy Dispersive X-ray Spectroscopy

    University essay from KTH/Materialens processteknologi

    Author : Ali Gharehbaghi; [2012]
    Keywords : austenitic stainles steel; precipitation; EDS; low voltage EDS; micron-scale precipitates; sub-micron intragranular precipitates;

    Abstract : Precipitation of second phase particles is a key factor dominating the mechanical properties of high temperature alloys. In order to control and optimize the precipitation effect it is of great importance to study the role of alloying elements in the formation and stability of precipitates. READ MORE