Search for dissertations about: "dpd"

Showing result 1 - 5 of 22 swedish dissertations containing the word dpd.

2. 1. Depressive Personality Disorder : Construct, measurement, clinical correlates, and treatment outcome

   Author : Rachel Maddux; Institutionen för psykologi; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; depression; personality disorder; treatment; DPD; Depressive Personality Disorder; psychometric;

   Abstract : Depression is a serious and potentially devastating health problem, impacting millions of individuals worldwide. Although advances have been made in depression research, there remain a number of outstanding questions as to why certain individuals experience depression and why some respond to treatment and others do not. READ MORE

4. 2. Characterization and Compensation of Hardware Impairments in Transmitters for Wireless Communications

   Author : Zain Ahmed Khan; Peter Händel; Magnus Isaksson; Mikko Valkama; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power amplifier; RF transmitters; SISO; MIMO; crosstalk; Volterra series; Volterra kernels; behavioral modeling; DPD; Ramanujan sums; multitone signals; I Q Imbalance; non-linearity; memory polynomial; density estimation; hardware impairments; Electrical Engineering; Elektro- och systemteknik;

   Abstract : Increasing demands for data rate, energy efficiency and reliability in wireless communications have resulted in the introduction of radio frequency (RF) multiple input multiple output (MIMO) transmitters. However, MIMO transmitters suffer from additional crosstalk impairments along with the power amplifier (PA) and I/Q imbalance distortions observed in single input single output (SISO) transmitters. READ MORE

5. 3. Digital Baseband Modeling and Correction of Radio Frequency Power Amplifiers

   Author : Per Landin; Peter Händel; Magnus Isaksson; Wendy Van Moer; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : Aspects related to behavioral modeling and correction of distortions for radio frequency (RF) power amplifiers (PAs) are treated in the thesis.    When evaluating the performance of a behavioral model it is important to, first of all, use an evaluation criterion, and second, make sure that the criterion actually tells something about the behavior one wishes to describe. READ MORE

6. 4. Estimating Effective Interactions from Particle Trajectories

   Author : Kolbjörn Tunström; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mori-Zwanzig projection; Force matching; United atoms; Multi-scale molecular dynamics; Coarse-graining; Molecular dynamics thermostat; Inverse Monte Carlo; Dissipative particle dynamics; Swarming;

   Abstract : The theoretical and practical understanding of molecular systems is strongly dependent on computer simulations. All-atom molecular dynamics techniques are capable of sim- ulating systems on the scale of millions of particles up to about 100 ns. READ MORE

7. 5. Deriving coarse grained descriptions of particle based simulations

   Author : Johan Nyström; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Coarse graining; Mori-Zwanzig projection; Dissipative particle dynamics;

   Abstract : In the field of molecular simulations, the long standing aim has been to study mechanisms that cannot easily be observed in experiments or understood in terms of more abstract models. Fully detailed molecular dynamics simulations can be extremely successful in many areas, but when applied to mesoscopic systems with a large number of molecules, the time and length scales on which important phenomena take place are often far beyond what is feasible to simulate with modern computers. READ MORE