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Closely spaced local gate electrodes are used to electrically define a double quantum dot along an InAs nanowire crystal. By applying a periodic pulse sequence to two plunger gate electrodes controlling the double quantum dot charge configuration, the device is operated as a single electron pump. The authors find that within measurement accuracy, the pumping current equals one electron per cycle f
Abstract is not available
Popular Abstract in Swedish Infektiös hepatit eller gulsot kan orsakas av flera olika sorters virus. De har alla det gemensamt att de orsakar en inflammation av levern. Namnet gulsot kommer av att när leverns funktion nedsätts så ansamlas ett färgämne i kroppen och ger ögonvitorna och huden en synlig gulgrön färg. Efter hand som de olika gulsotsvirusen har upptäckts har de namngivits efter alfabetHepatitis B virus is a non-cytopathic virus with a small, circular, partially double-stranded DNA of 3.2 kb. It causes acute and chronic inflammatory liver disease and hepatocellular carcinoma (HCC). Retesting of stored sera from an outbreak of acute hepatitis in 1969-72 allowed identification of 126 cases of acute hepatitis B. No chronic carriers expressing hepatitis B surface antigen (HBsAg) cou
The history of information systems research is steeped in a quest for appropriate methodologies, rigueur within complexity and an evolution of approaches. Currently this evolutionary trend may be seen to culminate in a siding of IS research within critical frameworks. In this paper we will draw on a relationship between IS research and system analysis to use similarities and differences in an atte
Vehicle-to-vehicle (VTV) communications are of interest for applications within traffic safety and congestion avoidance, but the development of suitable communications systems requires accurate models for the VTV propagation channel. This paper presents a new wideband MIMO (multipleinput- multiple-output) channel model for VTV channels based on extensive MIMO channel measurements performed at 5.2
Thermo-mechanical fatigue crack propagation in Inconel 718 has been studied with different methods. In-situ observations with a scanning electron microscope (SEM) were performed, the crack propagation process was followed cycle by cycle and the influences from load, temperature, and microstructure on the crack growth were analyzed. To measure the displacements an image analysis technique was devel
Most embedded control systems have constrained computationalresources. This makes codesign of the control algorithms and thereal-time scheduling an interesting issue. There is also a strongtrend in the real-time community of moving away from the hardreal-time model. Hence, embedded controllers must be designed sothat they are aware of the resource constraints and timinguncertainty of the implement
Popular Abstract in Swedish Forskningsprojektet som rapporteras i denna avhandling har två övergripande mål. Det första målet är att utveckla testinstrument avsett för avancerade svenska inlärare av engelska, som genererar reliabla och valida testpoäng kopplat till receptiv kunskap avseende engelska kollokationer som en specifik förmåga. Med kollokationer avses konventionaliserade och frekvent förThe research reported in this thesis has two main aims. The first aim is to develop tests capable of yielding reliable and valid scores of receptive knowledge of English collocations as a single construct, for use with advanced L2 learners of English. Collocations are seen as conventionalized, recurring combinations of words, and the targeted types are adjective + NP and verb + NP. The second aim
Stream ciphers are cryptographic primitives that are used to ensure the privacy of a message that is sent over a digital communication channel. In this thesis we will present new cryptanalytic results for several stream ciphers. The thesis provides a general introduction to cryptology, explains the basic concepts, gives an overview of various cryptographic primitives and discusses a number of di
Boken behandlar de grundläggande delar av reglertekniken som används i processindustrin. Den är skriven på ett sådant sätt att den inte förutsätter några matematikkunskaper utöver grundskolenivå. Boken vänder sig framförallt till praktiskt verksamma operatörer, instrumenttekniker och instrument- och processingenjörer som vill fördjupa sina kunskaper i reglerteknik, men är även lämplig för teoreti
The paper describes a novel extraction procedure for lipopolysaccharides (LPS) from Salmonella enterica subsp. enterica (PCM 2266). Process parameters for the extraction of LPS from bacterial mass were optimized by carrying out a two-level fractional design experiment. Four parameters, namely temperature, CO, flow rate, pressure and co-solvent composition were analyzed. The best crude extract yiel
This dissertation seeks to describe, analyse and explain the contemporary poverty urban deprivation research and policies. By looking at the post-war planning policy of two specific urban neighbourhoods, the South Bank in London and the Leopold Quarter in Brussels, it seeks to demonstrate and clarify: 1) the growing political impotence of urban strategies, plans, policies and research projects tha
