Search for dissertations about: "Grade system"

Showing result 1 - 5 of 242 swedish dissertations containing the words Grade system.

2. 1. Distributed Road Grade Estimation for Heavy Duty Vehicles

   Author : Per Sahlholm; Karl Henrik Johansson; Emilio Frazzoli; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automotive; estimation; distributed systems; automatic control; heavy duty vehicles; road grade; road maps; Automatic control; Reglerteknik;

   Abstract : An increasing need for goods and passenger transportation drives continued worldwide growth in traffic. As traffic increases environmental concerns, traffic safety, and cost efficiency become ever more important. Advancements in microelectronics open the possibility to address these issues through new advanced driver assistance systems. READ MORE

4. 2. Iterative Road Grade Estimation for Heavy Duty Vehicle Control

   Author : Per Sahlholm; Karl Henrik Johansson; Jonas Sjöberg; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; road grade; estimation; heavy duty vehicle; Kalman filter; automatic control; Automatic control; Reglerteknik;

   Abstract : This thesis presents a new method for iterative road grade estimation based on sensors that are commonplace in modern heavy duty vehicles. Estimates from multiple passes of the same road segment are merged together to form a road grade map, that is improved each time the vehicle revisits an already traveled route. READ MORE

5. 3. Hardware Distortion-Aware Beamforming for MIMO Systems

   Author : Yasaman Khorsandmanesh; Emil Björnson; Joakim Jaldén; Bo Göransson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Quantization-aware precoding; limited fronthaul capacity; sum rate maximization; millimeter wave mmWave ; beam coherence time; user equipment UE mobility.; Kvantiseringsmedveten förkodning; begränsad fronthaulkapacitet; summahastighetsmaximering; millimetervåg mmWave ; strålkoherens tid; användarutrustning UE mobilitet.; Informations- och kommunikationsteknik; Information and Communication Technology;

   Abstract : In the upcoming era of communication systems, there is an anticipated shift towards using lower-grade hardware components to optimize size, cost, and power consumption. This shift is particularly beneficial for multiple-input multiple-output (MIMO) systems and internet-of-things devices, which require numerous components and extended battery lifes. READ MORE

6. 4. The Auroral Large Imaging System : design, operation and scientific results

   Author : Urban Brändström; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Space and plasma physics; Aurora; Artificial airglow; HF-pump enhanced airglow; Multistation measurements; Polar Stratospheric clouds; Radio-Induced optical emissions; Spectroscopic imaging observations; Tomography; Rymd- och plasmafysik; Space physics; Rymdfysik; rymdfysik; Space Physics;

   Abstract : The Auroral Large Imaging System (ALIS) was proposed in 1989 by Åke Steen as a joint Scandinavian ground-based nework of automated auroral imaging stations. The primary scientic objective was in the field of auroral physics, but it was soon realised that ALIS could be used in other fields, for example, studies of Polar Stratospheric Clouds (PSC), meteors, as well as other atmospheric phenomena. READ MORE

7. 5. Gastroenteropancreatic Neuroendocrine Neoplasms Grade 3 : Biological and Clinical Aspects

   Author : Abir Salwa Ali; Malin Grönberg; Christoffer Juhlin; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Abstract : The aim of this thesis was to investigate biological and clinical aspects of G3 gastroenteropancreatic neuroendocrine neoplasms (G3 GEP-NENs).In our first study, the expression of the tumor suppressor p53 was investigated. In a cohort of G3 GEP-NENs we found the expression of p53 protein to be present in 39% of 124 cases. READ MORE