Essays about: "ATAS"

Showing result 1 - 5 of 7 essays containing the word ATAS.

  1. 1. Microscopic and Macroscopic Samples of Atoms in Superposition States Studied by Attosecond Pulses

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Axel Stenquist; [2021]
    Keywords : Mathematical physics; Theoretical physics; Atomic physics; Attosecond physics; Ultra-fast physics; Numerical simulations; Microscopic; Mesoscopic; Macroscopic; Superposition; Light matter interaction; Quantum mechanics; Electromagnetism; Semiclassical; Attosecond transient absorption spectroscopy; ATAS; Förster resonance; FRET; Two-atom model; Inter-atomic interaction; Dipole-dipole interaction; Many-atom model; Collective coherent effects; Time-dependent configuration-interaction singles; TDCIS; Physics and Astronomy;

    Abstract : In the present thesis, the interaction between atoms in superposition states and attosecond pulses is studied from the microscopic to the macroscopic regime. Using a semi-classical framework, three different models have been explored in order to investigate attosecond light--matter interaction processes. READ MORE

  3. 2. Trajectory and Pulse Optimization for Active Towed Array Sonar using MPC and Information Measures

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Fabian Ekdahl Filipsson; [2020]
    Keywords : Active Towed Array Sonar; ATAS; Extended Kalman filter; EKF; Unscented Kalman filter; UKF; Information measures; Model predictive control; MPC; Signal processing; Sensor management; Pulse forms; Route planning; Trace; Determinant; Frobenius norm;

    Abstract : In underwater tracking and surveillance, the active towed array sonar presents a way of discovering and tracking adversarial submerged targets that try to stay hidden. The configuration consist of listening and emitting hydrophones towed behind a ship. Moreover, it has inherent limitations, and the characteristics of sound in the ocean are complex. READ MORE

  4. 3. We own this power! : How a rural community in Indonesia uphold energy justice to harness a hybrid solar-wind energy plant and unlock capabilities.

    University essay from Lunds universitet/LUCSUS

    Author : Sarah Aon Abdullah; [2020]
    Keywords : community energy; renewable energy; energy justice; capabilities approach; energy transition; sustainability science; Social Sciences;

    Abstract : Indonesia, as per their stance on the Paris Agreement and social development goals (SDG), has been on a winding journey to meet their renewable energy targets. In providing the national electricity, the state electricity company (PLN) is still deriving more than 70% of its energy sources from coal and oil As per 2018, only up to 8% of on-grid power is generated from renewable energy sources, and this percentage has decreased by half between 2010 and 2018. READ MORE

  5. 4. Selected topics in the phonology and morphosyntaxof Laboya : A field study

    University essay from Stockholms universitet/Institutionen för lingvistik

    Author : Allahverdi Verdizade; [2019]
    Keywords : Austronesian languages; Indonesia; Sumba; Laboya; Lamboya; clitics; Austronesiska språk; Indonesien; Sumba; Laboja; Lamboja; klitikor; Bahasa Austronesia; Indonesia; Sumba; Lamboya; Laboya; klitik;

    Abstract : The present study investigates selected topics in the phonology and morpho-syntax of Laboya, a largely undescribed Austronesian language of Sumba island in eastern Indonesia. The study was carried out during nine weeks of field work. The language data is comprised by collected questionnaires and free narratives. READ MORE

  6. 5. Beyond Being Physically Active: Culturing the Ageing Body

    University essay from Lunds universitet/Avdelningen för etnologi

    Author : Yuanita Budiman; Kei Nilsson; [2018]
    Keywords : ageing body; active ageing; exercise; social interaction; elderly; embodiment; applied cultural analysis; medical anthropology; qualitative research; ethnography; MACA; Cultural Sciences; Medicine and Health Sciences; Social Sciences;

    Abstract : The aim of this thesis is to investigate how physical activity and social interaction assist in generating better performance of the ageing body. A multifaceted ethnographic material was collected from January to February 2018 at a health and training centre called Gerdahallen, located in Lund, Sweden. READ MORE