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Showing result 1 - 5 of 14 essays matching the above criteria.

  1. 1. The Role of Uni- and Multivariate Bias Adjustment Methods for Future Hydrological Projections and Subsequent Decision-Making

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Anna Merle Liebenehm-Axmann; [2024]
    Keywords : Bias adjustment methods; future hydrological climate projections; statistical analysis; future streamflow analysis; biasjusteringsmetoder; framtida hydrologiska projektioner; statistisk analys; framtida vattenförings analys;

    Abstract : Climate models are essential for generating future climate projections. However, due to simplifications, the models can produce systematic differences between output and reality, which is referred to as model bias. Bias adjustment methods aim to reduce this error, which is important for making future projections more reliable. READ MORE

  3. 2. A Digital Phase-Locked Loop for Frequency Synthesis using an Adaptive Pulse Shrinking TDC

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Viktor Lewin; [2023]
    Keywords : Phase-locked loop; PLL; DPLL; Frequency Synthesis; TDC; PFD; Technology and Engineering;

    Abstract : This thesis investigates a new type of Phase-Locked Loop (PLL) architecture which combines a phase/frequency detector (PFD) and a digital loop filter. The quantization is done by a time-to-digital converter which continuously shrinks the pulse coming from the PFD and registers how far it propagates. READ MORE

  4. 3. Empirical Verification of an Acoustic Estimation of a Rocket Engine : A Comparison Between Estimated and Measured Noise of a Rocket Engine

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

    Author : Elina Arvidsson; [2022]
    Keywords : Esrange Space Centre; Flame deflector; Acoustic estimation; Liquid rocket engine; Rocket Factory Augsburg; Jet acoustics; Esrange Space Centre; Flammdeflektor; Akustisk estimering; vätskedriven raketmotor; Rocket Factory Augsburg; strömningsakustik;

    Abstract : The noise of a rocket engine is a complex and complicated phenomenon which has been studied for more than half a century [1]. There are many sources to this noise, but due to its great potential impact to the surrounding structures, including the vehicle itself, it is important to have a model to estimate the acoustic environment the engine produces. READ MORE

  5. 4. Evaluation of a Minute Synthesis Irradiation Model for the Frequency Containment Reserve : Disturbance down-regulation market

    University essay from Högskolan Dalarna/Institutionen för information och teknik

    Author : Pablo Omar Luz Pedemonte; [2022]
    Keywords : Solar Energy; Photovoltaic; Irradiance variability; Synthetic solar irradiance; Ancillary services; Frequency regulation; Balancing market;

    Abstract : With the increase in energy demand, and therefore, in energy generation, new high voltage direct current export links and overseas connections of large amounts of power are being introduced. These new links are subject to possible malfunction or failures, which may causea substantial frequency increase in the power system. READ MORE

  6. 5. Ordering and inventory control at ARPS

    University essay from Lunds universitet/Teknisk logistik; Lunds universitet/Institutionen för teknisk ekonomi och logistik

    Author : Hedvig Orvenholt; Hedda Trönnberg; [2020]
    Keywords : Inventory control; order planning; production planning; cost-optimal; cost efficiency; quantity discounts; storage limitation; Technology and Engineering;

    Abstract : Abstract Title Ordering and inventory control of raw materials at AR Packaging Systems Authors Hedda Trönnberg and Hedvig Orvenholt Supervisors Ph.D. Jan Olhager, Lund University, Faculty of Engineering, Department of Industrial Management and Logistics Max Ivarsson, Supply Chain Specialist, AR Packaging Systems AB Examiner Ph.D. READ MORE