Filtyp
This work details investigation of two-phase aqueous foam flow, which is applicable for developing energy-efficient heat exchangers. In such heat exchangers, heat transfer rates are enhanced due to the structure and properties of aqueous foam, namely gas bubbles separated by a thin liquid film. Aqueous foam is noted to have an especially large inter-phase contact surface and reduced surface tensio
Using the Cayley-Hamilton theorem and unique solubility of scalar Volterra convolution equations of the second kind, the inverse problem of determining the four time-dependent susceptibility dyadics of a linear, homogeneous, bianisotropic slab from generic scattering data at oblique incidence is shown to be well posed. An explicit formula for the crucial step is given.
In recent decades, information technology has enjoyed an ever-increasing degree of influence upon society. The use of technology has proliferated, bleeding into all human activities, and now extends into the most private activities of individuals. Unfortunately the perpetrators of serious crimes have not missed the revolution. Technology has marked off many working terrains including that of serio
Abstract in UndeterminedA method is described for assessing occupational exposures to chromium aerosols; it involves four procedures. The first, proton induced X-ray emission (PIXE), measures the total chromium,. The second, electron spectroscopy for chemical analysis (ESCA), measures the oxidation state of the particle surfaces, and the third, which uses sym-diphenylcarbazide (DPC), measures the
Följande är en pedagogisk utvecklingsplan för intermediala kulturstudier, delkurs tre av fyra på grundnivåutbildningen intermediala studier (IMS A11, 30 hp). Kursen ges fr.o.m. hösten 2009 även som fristående kurs på 7,5 hp (IMS A40), tillsammans med helterminsstudenterna och utan förkunskapskrav. Med detta uppstår ett pedagogiskt problem, då delkursen föregrips av två andra delkurser: intermedial
Highly excited P and D states in 87 Rb were examined using a two-step excitation procedure. A conventional rf lamp and a CW dye laser were used for the first and second step, respectively. The following results for the magnetic dipole interaction constant a , the electric quadrupole interaction constant b , the Landé g J factor, and the tensor polarizability α 2 were obtained in level-crossing an
The paper gives an overview of the planned orbit correc- tion system for the 3 GeV storage ring at the MAX IV lab- oratory, a light source facility currently under construction in Lund, Sweden[1, 2]. The ring will have a vertical beam size in the 1-4μm range in the insertion device (ID) straight sections depending on coupling[3], which places high re- quirements on the orbit stability. To meet thi
Model-based analysis of in-cylinder pressure sensor signals has been a key component for internal combustion engine research, diagnostics and controller development during the past decades. This analysis is often based on simple thermodynamic models of the in-cylinder processes. In order for the analysis to give accurate results, the models need to be sufficiently calibrated. This paper investigat
A blood treatment apparatus (2) comprising: a blood treatment unit (10); a blood line (20) configured to extract blood from a blood source (21), pass the blood through the blood treatment unit (10) and deliver treated blood to a target vessel (22); and a fluid line (30) configured pass treatment fluid through the blood treatment unit (10) and deliver used treatment fluid to a fluid sink (32). A fl
This dissertation investigates properties of rotating atomic nuclei. Studies are performed using the cranking model and in the particles + rotor model. Properties studied are energy spectra and electromagnetic transition probabilities. The thesis also investigates the use of different liquid drop models at high spin values and studies the use of the particle + rotor approximation for the descripti
Our previous measurements in the P and D series in 133 Cs have been extended to a number of higher lying levels, populated in a two-step excitation process involving an rf lamp and a CW dye laser. The D states were studied with the level-crossing technique, while the optical-double-resonance method was used for the investigation of the P states. For the magnetic dipole interaction constant a , the
A new approach to the numerical solution of optimal control problems with state-variable inequality constraints is presented. It is shown that the concept of constraining hyperplanes may be used to approximate the original problem with a problem where the constraints are of a mixed state-control variable type. The efficiency and the accuracy of the combination of constraining hyperplanes and a sec
