Sökning: "Complexity analysis"

Visar resultat 21 - 25 av 1457 avhandlingar innehållade orden Complexity analysis.

1. 21. Riqueza léxica y expresión escrita en aprendices suecos de ELE : Proficiencia general, competencia léxica pasiva, tipo y complejidad de la tarea

   Författare :Marco Berton; María Bernal; Laura Sánchez Pérez; Folkert Kuiken; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; lexical richness; foreign language writing; Spanish; linguistic complexity; TBLT; task-based; task complexity; vocabulary; second language acquisition; riqueza léxica; ELE; producción escrita; complejidad lingüística; enfoque por tareas; complejidad de la tarea; vocabulario; adquisición de segundas lenguas; romanska språk med inriktning mot spanska; Romance Languages; Specialisation in Spanish;

   Sammanfattning : The present study explored lexical richness in the written production of Swedish university students of Spanish as a foreign language. Two aspects of lexical richness were investigated in the study, i.e., diversity (the ability to use a varied lexical repertoire), and sophistication (the proportion of relatively infrequent words). LÄS MER

3. 22. Bandwidth-reduced Linear Models of Non-continuous Power System Components

   Författare :Jonas Persson; Lennart Söder; Liisa Haarla; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Linearization methods; frequency analysis; transient analysis; time-domain simulations; eigenvalues; linear analysis; TCSC; Electric power engineering; Elkraftteknik;

   Sammanfattning : Denna avhandling är fokuserad på modellering av elkraftsystemkomponenter och deras representation vid simuleringar av elkraftsystem. Avhandlingen jämför olika linjäriseringstekniker. Dessa tekniker är såväl numeriska som analytiska och används vid linjärisering av ett dynamiskt system. LÄS MER

4. 23. Förutsättningar för gymnasieelevers kunskapsbildning och för undervisning inom miljöområdet

   Författare :Birgit Hansson; Learning Lund; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; didaktik; Pedagogik; Pedagogy and didactics; environmental knowledge; Environmental education; complexity; holism; contextual analysis; upper secondary school;

   Sammanfattning : Conditions to promote students' knowledge and education about environment The objectives of this Study are: · To describe and analyse the development of students' knowledge about the environment · To elucidate the nature of student thinking about the environment and, from the findings, to suggest the potential of Environmental Education Environmental education is multi-disciplinary and complex. The theoretical background to this Study is based on an holistic approach and interrelationships and on ideas from Charles S. LÄS MER

5. 24. Baseband Processing for 5G and Beyond: Algorithms, VLSI Architectures, and Co-design

   Författare :Mojtaba Mahdavi; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VLSI Implementation; Hardware architectures; ASIC implementation; FPGA implementation; CMOS Technology; Baseband Processing; Massive MIMO; 5G New Radio; Beyond 5G; Co-Design; FFT processor; OFDM modulation; wireless communications; Massive MIMO Detection; Angular domain processing; Zero forcing; Systolic array; Non-linear detector; Channel Sparsity; Channel compression; Linear detector; Channel coding; Spatial coupling; Turbo-like codes; Spatially coupled serially concatenated codes; Threshold analysis; Decoder architecture; BCJR algorithm; MAP algorithm; Coupling memory; Window decoding; Complexity analysis; Performance Evaluation; Throughput; Decoding Latency; Silicon area; Design tradeoffs; Interleaver architecture; Memory requirements; Matrix multiplication; Channel state information CSI ; Cholesky decomposition; Tanner graph; Trellis codes; Convolutional encoder; Code design; Puncturing; Reordering circuit; wireless communication system; digital electronic;

   Sammanfattning : In recent years the number of connected devices and the demand for high data-rates have been significantly increased. This enormous growth is more pronounced by the introduction of the Internet of things (IoT) in which several devices are interconnected to exchange data for various applications like smart homes and smart cities. LÄS MER

7. 25. Numerical Complexity Analysis of Weak Approximation of Stochastic Differential Equations

   Författare :Raul Tempone Olariaga; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Adaptive methods; a posteriori error estimates; stochastic differential equations; weak approximation; Monte Carlo methods; Malliavin Calculus; HJM model; option price; bond market; stochastic elliptic equation; Karhunen-Loeve expansion; numerical co; Numerical analysis; Numerisk analys;

   Sammanfattning : The thesis consists of four papers on numerical complexityanalysis of weak approximation of ordinary and partialstochastic differential equations, including illustrativenumerical examples. Here by numerical complexity we mean thecomputational work needed by a numerical method to solve aproblem with a given accuracy. LÄS MER