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In this work, a picosecond-lidar system, using a Nd:YAG picosecond laser, a Newtonian telescope and a streak camera, was used for single-ended furnace diagnostics. The optical access of the furnace was obstructed by a sooty diffusion ethylene flame. It was demonstrated that, with proper optical arrangement, the elastic scattering of the flame can be mapped in one dimension simultaneously as temper
Hotspots and coldspots of concentration and biodegradation of polycyclic aromatic hydrocarbons (PAHs) marginally overlapped at the 0.5-100 m scale in a creosote contaminated soil in southern Sweden, suggesting that concentration and biodegradation had little spatial co-variation. Biodegradation was substantial and its spatial variability considerable and highly irregular, but it had no spatial aut
This master thesis aims to gain an understanding about how managers and members in an organization perceive observed employee silence (intentional withholding ideas at work) and attribute meanings to it. In addition, it aims to reveal, in what situations observers are not able to identify the intentional silence. Organizational culture, sensemaking and power relations and U-turn in criticism are t
Current market trends for industrial automation are the need for customizable production, shorter time to market, and powerful global competitive pressure. Based on these trends two challenges have been identified: 1) flexible production systems and 2) integration and utilization of devices and software. Applications from both process automation, manufacturing, and robotics have been considered.
The principle aim of the study is to describe, analyze and problemize the ways in which television science documentaries (within a public service context) discursively represent scientific theories, research results and conclusions about the origins of human nature and the causes of human behavior. The study covers 25 programs broadcasted by SVT and UR during a period of four years, 2002-2005, and
We report on measurements of the light absorption efficiency of InSb nanowires. The absorbed 70 fs light pulse generates carriers, which equilibrate with the lattice via electron-phonon coupling. The increase in lattice temperature is manifested as a strain that can be measured with X-ray diffraction. The diffracted X-ray signal from the excited sample was measured using a streak camera. The amoun
The torque capabilities of electrical machines are today limited by magnetic saturation and the ability to transfer thermal loads away from the machine. A solution to thermal management in power turbo-generators involves hollow conductors allowing direct cooling of the heat source thus increasing the power density significantly. The work done in this master thesis investigates the pos- sibilities
Idag kopplas allt fler enheter upp på Internet, vilket effektiviserar såväl enhetshantering som kommunikation mellan enheter. I hemmiljöer kan användare styra enheter genom att förse dem med beskrivande namn, som till exempel "högtalare vardagsrum". Så länge antalet enheter är begränsat är en sådan lösning ofta tillräcklig. I ett fall med ett stort antal enheter måste användaren dock hålToday, an increasing amount of physical devices are obtaining Internet connectivity for more efficient management and device communication. In home environments, users may manage devices by providing them descriptive names such as "living room speaker". For a limited set of devices such a solution is often sufficient. However, in a case where one wants to individually manage a very high
This study aimed to identify characteristics of workers experiencing health problems without a decline in labor productivity to address presenteeism. A cross-sectional analysis was conducted on 554 workers in Japan, with a median age of 43 years. Participants reported any health problems in the past month, along with job stressors, stress responses, social support, and job and life satisfaction us
Det ökande byggandet av stadsvägtunnlar, de alpina tunnelolyckorna runt millennieskiftet, och det efterföljande EU-direktiv (2004/54/EC) med minimikrav gällande brandsäkerhet har placerat brandsäkerhet i vägtunnlar högt på dagordningen. Samtidigt är moderna enkelriktade vägtunnlar ofta bland de säkraste delarna av vägsystemet. Har vi kommit till en punkt där resurserna används bättre någon annanstThis thesis can be described as a journey in performance-based fire safety design. Along the way questions such as what fire safety is, how it can be measured, whether we are posing the right questions, or engineer the best solutions, have arisen. The safety journey naturally started out with the traditional view, with fire safety engineering based on limit-based design. Using this paradigm the sa
A low-cost microstrip patch antenna array is proposed in this paper for automotive radar applications in ISM 24 GHz band. The elements of the center-fed array are connected in series to make a compact design with low complexity by obviating Wilkinson power divider. This approach also helps to reduce the dielectric losses of the array. A full-wave electromagnetics (EM) software EMPIRE XPU is used i
Aim: To describe the experience of distress in people with cancer of working age. Design: A cross-sectional study. Methods: In this cross-sectional study, patients (N = 168) with both ongoing (N = 56) and completed treatment (N = 105) completed the Distress Thermometer and the detailed problem list. Data were analysed by descriptive and analytical statistics. Results: A large proportion of patient
