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Found 5 essays matching the above criteria.

  1. 1. Optimizing nitrogen fertilization in ley : Evaluating the usage of N-sensor and other tools for optimized nitrogen fertilization

    University essay from SLU/Dept. of Soil and Environment

    Author : Johan Johnsson; [2023]
    Keywords : nitrogen efficiency; optimized fertilization; SN value; unfertilized area; Yara N-sensor;

    Abstract : Nitrogen is an essential nutrient for plant growth. It has several functions in the plant and a lack of nitrogen can cause severe yield losses. READ MORE

  3. 2. Model based optimization of flow sensor locations in drinking water networks

    University essay from

    Author : Stedt Cristopher; [2020]
    Keywords : Leakage optimization sensor;

    Abstract : This thesis uses a model-based approach to finding optimal positions of flow datasensors in a water distribution network (WDN). Flow data sensors can be used toidentify and localize leaks in a network that lead to significant losses of both water and energy. READ MORE

  4. 3. Machine learning for condition monitoring in hydropower plants using a neural network

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Tina Stark; [2019]
    Keywords : Machine learning; hydropower; condition monitoring; neural network; Kaplan; turbine; feedforwardnet;

    Abstract : The hydro power industry stands for new challenges due to a more fluctuating production fromwind and solar power. This requires more regulation of the production in the hydro powerstations, which increases maintenance demands. An oil leakage has not only consequencessuch as downtimes and maintenance costs, but also an environmental impact. READ MORE

  5. 4. Optimization of pneumatic activity sensor : Development of a low friction seal

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

    Author : Rickard Nilsson; [2019]
    Keywords : ;

    Abstract : In this thesis, the development of a new type of seal is presented along with the steps taken to attain the conclusive design. The results are presented in this paper as a cross-sectioned CAD-model along with the selection of materials and suggestions for future work. READ MORE

  6. 5. Finite Element Analysis of PZT-based Air Flow Sensor

    University essay from Mittuniversitetet/Avdelningen för elektronikkonstruktion

    Author : Xie Chuanliang; [2017]
    Keywords : Air Velocity; PZT; FEA; COMSOL Multiphysics; Bilayer Cantilever;

    Abstract : This thesis proposes a novel air flow sensor based on PZT material which is used to measure air velocity in an experimental tunnel or indoor ventilation. The work focuses on designing and verifying the sensor model through finite element analysis (FEA) simulation using COMSOL Multiphysics software. READ MORE