Essays about: "propagation in forests"

Showing result 1 - 5 of 6 essays containing the words propagation in forests.

  1. 1. Exploring patterns in risk factors for bark beetle attack during outbreaks triggered by drought stress with harvester data on attacked trees: A case study in Southeastern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Nikolaos Kouskoulis; [2023]
    Keywords : Geography; GIS; Geographic Information Science; Forest ecosystems; Bark beetle outbreak; Southeastern Sweden; Predisposing factors; Triggering factors; Drought stress; Earth and Environmental Sciences;

    Abstract : ABSTRACT Raising temperatures and climate variability have intensified extreme weather events worldwide. These extremes can enhance and trigger possible pest outbreaks. Bark beetle attacks have become a major concern in regions with extensive spruce forest areas. Southeastern Sweden has faced repeated outbreaks resulting in widespread tree loss. READ MORE

  3. 2. Contribution to the Understanding of the Effects of Propagation through the Ionosphere of P-band SAR Data

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

    Author : Johannes Samuel Erland Rönner; [2023]
    Keywords : Synthetic aperture radar; Ionosphere;

    Abstract : The BIOMASS mission from the European Space Agency (ESA) is designed to measurebiomass and carbon content in Earth’s forests. To account for phase changes caused byionospheric variations, a map-drift autofocus algorithm is developed, which utilises a phasescreen of the ionosphere to eliminate phase errors in the signal. READ MORE

  4. 3. Tree Species Impact on Forest Fire Spread Susceptibility in Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Sara Sharon Jones; [2023]
    Keywords : Geography; GIS; Physical Geography; Forest Fire; Forest Fire Susceptibility; Sweden; logistic regression modelling; Earth and Environmental Sciences;

    Abstract : Klimatförändringar förväntas leda till längre brandperioder och ökad brandrisk. I Sverige, där homogen produktionsskog utgör största delen av landskapet, finns ett behov av bättre förståelse för skogens mottaglighet för bränder för att kunna mildra risker. READ MORE

  5. 4. Remote Control of Forest Machinery Using WiFi

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Michal Tomaszuk; [2019]
    Keywords : WiFi; IEEE 802.11; propagation in forests; directional antennas; antenna alignment; WiFi; IEEE 802.11; strålning i skog; riktade antenner; antennorientering;

    Abstract : Automation of the forest industry has for over 30 years been an important subject of research, which could reduce the human workload and costs significantly. However, there are still many problems to be solved, such as enabling the communication between the heavy machinery in a forest and a remote base. READ MORE

  6. 5. BIOGAS DEVELOPMENT SCENARIOS TOWARDS 2020 IN RWANDA: The contribution to the energy sector and socio-economic and environmental impacts

    University essay from Akademin för teknik och miljö

    Author : JEAN DE LA CROIX SINARUGULIYE; JEAN BAPTISTE HATEGEKIMANA; [2013]
    Keywords : Anaerobic digestion; biogas; biomass; dissemination; scenario;

    Abstract : Access to modern energy is essential to achieve sustainable development and poverty reduction. However, with about 321 kWh per capita, Rwanda is ranked among the countries that have a lower consumption of primary energy in the world. READ MORE