Search for dissertations about: "lag effect"

Showing result 1 - 5 of 87 swedish dissertations containing the words lag effect.

2. 1. InP-based photonic crystals : Processing, Material properties and Dispersion effects

   Author : Audrey Berrier; Srinivasan Anand; Alfred Forchel; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Photonic crystals; indium phosphide; photonic bandgap; Bloch modes; slow light; dispersion; coupled cavity waveguides; chemically assisted ion beam etching; lag effect; cavities; optical losses; carrier transport; carrier lifetimes; negative refraction; photonic bandstructure; Physics; Fysik;

   Abstract : Photonic crystals (PhCs) are periodic dielectric structures that exhibit a photonic bandgap, i.e., a range of wavelength for which light propagation is forbidden. The special band structure related dispersion properties offer a realm of novel functionalities and interesting physical phenomena. READ MORE

4. 2. Study on electroabsorption modulators and grating couplers for optical interconnects

   Author : Yongbo Tang; Urban Westergren; Dries Van Thourhout; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Photonic integrated circuit; optical interconnect; transmission line; traveling-wave; electro-absorption modulator; hybrid silicon evanescent platform; grating coupler; vertical coupling scheme; optical antenna; lag effect; polarization beam splitter; Photonics; Fotonik; SRA - ICT; SRA - Informations- och kommunikationsteknik;

   Abstract : Decades of efforts have pushed the replacement of electrical interconnects by optical links to the interconnects between computers, racks and circuit boards. It may be expected that optical solutions will further be used for inter-chip and intra-chip interconnects with potential benefits in bandwidth, capacity, delay, power consumption and crosstalk. READ MORE

5. 3. A fixed-lag smoother for solving joint input and state estimation problems in structural dynamics

   Author : Ulrika Lagerblad; Artem Kulachenko; Thomas Abrahamsson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Joint input-state estimation; Fixed-lag smoother; Structural dynamics; Hållfasthetslära; Solid Mechanics;

   Abstract : In this thesis we have investigated different numerical filters for joint input and state estimation, with the aim of designing a robust algorithm capable of monitoring the continuous motion and loading in a truck chassis. The algorithm has to be able to use sparse measurements of the motion on different parts of the truck as it is excited by road induced vibrations, and transform this data into knowledge of the state in the entire system. READ MORE

6. 4. Bacterial and fungal growth in soil: The effect of temperature and substrate addition

   Author : Stephanie Reischke; MEMEG; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bacterial growth; Fungal growth; Respiration; Carbon loading; Glucose mineralisation; Temperature adaptation; Temperature sensitivity; Temperature dependence;

   Abstract : Bacteria and fungi are the main agents in decomposition of soil organic matter. Their activity is determined by the availability and quality of substrate, especially its content of carbon, but also nitrogen and phosphorus. Other environmental factors, which affect the activity of the microbial community in soil, are temperature, moisture and pH. READ MORE

7. 5. Effect of local food on lumefantrine bioavailability and population pharmacokinetics in Ugandan children with malaria

   Author : Norah Mwebaza; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Background. Artemether-lumefantrine (AL) is widely adopted as first-line treatment for uncomplicated malaria. Lumefantrine (LUM), the long acting partner drug is critical for cure by eliminating malaria parasites left after artemether exposure. READ MORE