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A 1.8-GHz CMOS VCO is presented, employing a monolithic transformer as an inductance with voltage-controlled value. The design was implemented in a standard digital 0.6 μm, 2-metal CMOS process and exhibits a 10% tuning range with a 2.7 V supply voltage and a 9 mA supply current. Phase noise measurements show a worst-case phase noise of about -112 dBc/Hz at 3 MHz offset from the carrier
The present paper reports on two different applications developed at ULUND. Both applications are designed to allow the user to interact with a haptic-auditory virtual environment. Common problems in both applications concern the design of tools for creat
This paper describes one approach to verification of governor response during normal operation. It is based on field tests carried out in four hydro power plants in the Sweden. The experiments were carried out in September 1976 but have not been published internationally until now. Additional analysis and simulations were carried out during the preparation of this paper in July 2002.
The understanding of how forests function with respect to carbon (C) balance and its interaction with the climate system is a fundamental question in climate change research. Another important question is how large the sink for CO2 is in northern forests and how it varies with forest type, management, stand age and with external factors, such as climate variability. According to the Kyoto Protocol
Föreliggande artikel söker presentera det vida området (re)habiliterings-teknisk forskning. Strukturen är allmän, men exemplen är många. Flertalet är hämtade från CERTEC, Centrum för Rehabiliteringsteknik, inom Tekniska Högskolan i Lund, där alla författarna är verksamma: Bodil Jönsson, universitetslektor och forskningsledare, Håkan Eftring, tekn lic och forskarstuderande inom robotteknik, Charlot
Porträtt över filmregissören Kathryn Bigelow med tyngdpunkt på hennes film The Hurt Locker.
Abstract in UndeterminedHeat has for long been utilised as a therapeutic tool in medicine. Tumour diseases and vascular malformations can be treated by elevating the temperature to cytotoxic levels. Laser-induced heat treatment relies on the conversion into heat of light absorbed in the tissue. Mathematical models were used to calculate the light absorption distribution and the subsequent temperat
