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Many analog systems need a stable power supply voltage that does not vary with temperature and time in order to operate properly. In a battery operated system the battery voltage is not stable, e.g. it decreases with decreasing temperature and with ageing.
This report presents an investigation of the possibilities to implement voice over IP (VoIP) in Sony Ericsson cellular phones. The results from this investigation show that it is partially possible to implement such a solution. The best option for doing so is
The focus of this thesis was to design an energy management system for Marsokhod, a six-wheeled Martian rover. The rover is designed with a distributed energy system, each wheel contains a battery, motor controller and H-bridge, while each battery provides power to
Cubic boron nitride (cBN) is a synthetic and an intrinsically super-hard material with the second highest hardness and thermal conductivity next to diamond. Cubic BN with its tetrahedral sp3 structure is isostructural and isoelectronic to diamond. Diamond is far the most extreme
Autonomous robots typically rely on internal representations of the environment, or maps, to plan and execute their tasks. Several types of maps have been proposed in the literature, and there is general consensus that different types have different advantages and limitations, and
The paper summarizes an investigzation into methods for treating sugar cane trash in preparation for combustion in a spreader stoker boiler designed for bagasse and supplementary fuel oil. Due to the herbaceaous nature of sugar cane trash, water leaching was proposed and
The present report is about the parameter analysis of creep models of Nanocomposites (Isotactic polypropylene and CaCo3).The parametric analysis of the nanocomposites under creep was carried out, and the parameters related to creep model are determined by comparing to the experimental results.
At the Iggesund mill there are several methods and equipments in laboratory scale that simulate the offset printing process in order to evaluate mottle tendency or ink tack for instance. However, it is not possible to study the effect of pre-damping prior
One of the most important issues in contemporary database application became processing of the large amount of data. Second problem is different characteristic of the data that are processed by the system. Those data are perceived as large continuous streams of elements
Imagine the following situation. You give your favorite robot, named Pippi, the task to fetch a parcel that just arrived at your front door. While pushing the parcel back to you, she must travel through a door opening. Unfortunately, the parcel she