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… According to a two-layer model of the atmosphere one finds a shift in the frequency of baroclinic instability due to an increased temperature gradient caused by the increasing CO2. Baroclinic instability over the Atlantic Ocean is the main cause for frontal zone production …
… Recently there has been great concern due to increasing strength and frequency of El Niño-events and a possible influence from the greenhouse warming. However scientists do point to the fact that the series of contracted El Niños during the first half of the 1990´s not being …
ett exempel från Jämtgaveln
… one cubic meter of wood per year). Most areas in Jämtgaveln have a quite high frequency of forest fires throughout history. The period between forest fires have been 60 to 80 years at most (Linder 1988). Inspite of its peripheral location Jämtgaveln has been exploited for its …
I detta arbete studeras möjligheterna att använda s.k. "Frequency-Modulated Continuous Wave radar" (FMCW-radar) för att mäta avstånd och radiell hastighet till ett mål. Vidare undersöks möjligheten att använda en följd av sådana mätdata för att skatta banparametrar för ett mål …
… of electronic journals, how the library's choice of these journals affects the frequency of use and what the attitudes towards them are. A questionnaire was sent out to 2 400 employees; 477 replies were received. The result shows that 55% of the respondents use electronic …
… en avsevärd förbättring med avseende på mängden korrektöverförd data. Radio Frequency IDentification (RFID) är en teknologi inom AIDC-området som har börjat användas allt mer, vilket också IKEA uppmärksammat. IKEA är ett multinationellt företag som expanderar kraftigt samtidigt …
en intervjuundersökning
… whether they have any effect on the non-monetary factor or not. Only the frequency of visits to the forest property has significant effect on the non-monetary factor. This study has shown that non-monetary utility components are an important factor for the price making of forest …
Aspekter på förhållandet mellan teamkommunikations innehåll, frekvens och problem, och teamresultat, studerat i en militär flygsimulator för grupper
A study of communication content, frequency and problems was performed at the Swedish Air Force Air Combat Simulation Centre, FLSC. The purpose was to investigate the connection between team communication and performance variables, to study communication problems during air …
… does not need to be extremely fast or does not need to operate in a big frequency area. To have all the flexibility that is needed a full custom technique is used. When the mismatch is most unfavourable the total offset is 209.24 uV which is within the goal.
… obvious advantages over the heterodyne counterpart. Since the intermediate frequency (IF) is zero, the problem of image is circumvented. As a result, no front-end image reject filter is required and the channel selection requires only a low-pass filter, which makes it easy to …
… and significantly higher speed, up to 54 Mbps. 802.11a uses Orthogonal Frequency Division Multiplexing (OFDM) where modulation is performed by an IFFT and the demodulation by an FFT. After modeling the FFT in Matlab and C, the FFT implementation has been validated using a soft …
… for the ADC’s that converts the signals. In the digital part the sampling frequency is decimated by digital FIR filters in several stages down to 16 Hz. All the resulting data is temporarily stored in a SDRAM memory before being recovered by the HL-11 board that handles the …
… for the MPC design. The system and the model are analyzed in the time- and frequency domains and the model is both implemented and validated in a Saab 9-5. The work has been performed both at Saab Automobile Powertrain AB in Södertälje and in Vehicular Systems Dept. of …
en fältstudie för att bestämma lämplig undersökningsdag och frekvens på ultraljudsproben
… by the 7,5 MHz transducer compared to the 5 MHz transducer, since the higher frequency of the transducer gives less tissue penetration.
… three groups who were castrated vocalized significantly more in the >1000 Hz frequency range than the control piglets who were just restrained and washed. This however does not necessarily mean that the anaesthesia had no effect at all. There was a tendency that piglets who …
