Essays about: "bud"

Showing result 1 - 5 of 34 essays containing the word bud.

  1. 1. Vegetation phenology derived using the plant phenology index and the normalized difference vegetation index for the Balkan peninsula, south-eastern Europe

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Aleksandra Ivanova; [2019]
    Keywords : physical geography; ecosystem analysis; phenology; vegetation; climate change; remote sensing; plant phenology index; PPI; timesat; Balkan peninsula; Earth and Environmental Sciences;

    Abstract : This study analyses the performance of the satellite derived Plant Phenology Index (PPI) against the Normalized Difference Vegetation Index (NDVI) for estimating start of season (SOS) and end of season (EOS) of vegetation growth in part of the Balkan Peninsula, Southeastern Europe (2000 – 2016). Results revealed that PPI and NDVI differ considerably; SOS and EOS may diverge by more than one month between the two indices. READ MORE

  2. 2. Impact of environmental variables on tundra vegetation onset of flowering explained by survival modelling

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Hanna Jonsson; [2019]
    Keywords : Flowering; Phenology; Cox proportional hazard model; Tundra; International tundra experiment; Climate change; Physical Geography and Ecosystem analysis; Earth and Environmental Sciences;

    Abstract : Timing of phenological events are highly related to climate and is one of the first signs of ecosystem responses to the climate change. Timing of flowering phenology is an important trait influencing the distribution and fitness of plants species. READ MORE

  3. 3. Bidding models for bond market auctions

    University essay from KTH/Matematisk statistik

    Author : Kristofer Engman; [2019]
    Keywords : Auction; winner s curse; request for quote; RFQ; statistics; applied mathematics; financial mathematics; bond; e-auction; fixed income; skew exponential power; mifid II; pricing; Budgivning; winner s curse; request for quote; RFQ; statistik; tillämpad matematik; finansiell matematik; obligation; e-auktion; fixed income; skew exponential power; mifid II; prissättning;

    Abstract : In this study, we explore models for optimal bidding in auctions on the bond market using data gathered from the Bloomberg Fixed Income Trading platform and MIFID II reporting. We define models that aim to fulfill two purposes. The first is to hit the best competitor price, such that a dealer can win the trade with the lowest possible margin. READ MORE

  4. 4. Optimal Day-Ahead Scheduling and Bidding Strategy of Risk-Averse Electric Vehicle Aggregator : A Case Study of the Nordic Energy and Frequency Containment Reserve Markets

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

    Author : Jacob Dalton; [2018]
    Keywords : ;

    Abstract : The Nordic synchronous grid is facing a number of challenges. The ongoingphaseout of synchronous generation coupled with increased penetration ofintermittent renewable generation is leading to reduced system inertia. READ MORE

  5. 5. Deep Reinforcement Learning in Real-time Bidding

    University essay from Lunds universitet/Matematik LTH

    Author : Oskar Stigland; [2018]
    Keywords : Machine learning; reinforcement learning; markov decision process; neural network; deep Q-network; real-time bidding; online display advertisement; Mathematics and Statistics;

    Abstract : Real-time bidding is getting increasingly popular for buying and selling online display advertisement. This has spurred a research interest into how to design optimal bidding algorithms, with advances during the last two to three years focusing heavily on reinforcement learning. READ MORE