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- Jingryd, Ola
(författare)
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Impartial contract-engineeering in real estate transactions : :
- 2008
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Licentiatavhandling (övrigt vetenskapligt)abstract
- Even in the days of an ever closer European union, Europe contains no less than four different legal cultures with respect to real estate conveyances: the Latin-German notary system, the deregulated Dutch notary system, the lawyer/solicitor system, and the Scandinavian licensed real estate broker system. The latter is of particular interest in that Scandinavian brokers play a far larger role in real estate transactions than their European counterparts. This paper examines and compares the Swedish real estate broker and the Latin notary. The Swedish broker is required by law to act as an impartial intermediary, to provide counseling to both parties, and to assist in drawing up all contracts and other documents necessary for the transaction at hand. To that end, the broker must be active and observant of the particular needs of the parties to the present transaction, always striving to enable them to reach equitable and practical agreements so as to prevent future disputes. In other words, the broker is required to tailor the transaction to fit the needs of the buyer and seller. The Latin notary profession prevails in large parts of the world, particularly the Latin-German parts of continental Europe, and Latin America. While there are divergences in the notarial laws of all countries, the similarities are greater still, and it is correct to speak of a single profession throughout all these countries. The notary carries out several important functions, the nexus of which is the authentication of legal documents. In the preparation of these documents, the notary is required to provide impartial counseling in order to tailor the transaction at hand to fit the will and needs of the parties. To uphold the integra fama of the profession, and to safeguard the proper performance of the notarial functions, lawgivers in all countries emphasize the importance of impartiality and integrity. There are national divergences as to the specific rules of conduct related to impartiality, particularly those concerning what activities are considered incompatible with the notariat, but they rest on common principles. Most importantly, not only must the publica fides be honored, it must be seen in the eyes of the public to be honored. The organization and regulation of the notary profession raises important economic issues, particularly with regard to competition/monopoly and market failures. The discussion of the regulation or deregulation of the notariat is by no means settled. Comparing the two professions, it is striking to see the enormous similarities in the legal frameworks and their respective rationales. Two common features are of particular interest. Firstly, both the Swedish broker and the Latin notary are required to assist the contracting parties in the contract phase, drawing up any necessary documents and counseling the parties as to the implications of the transaction. In that respect, both professions function as tailors to the transaction. Secondly, both the broker and the notary are required to act impartially and independently – impartially visavi the contracting parties, and independently in order to preserve the public faith in the independence and integrity of the professions. The similarities can be summarized as a function on the real estate market: impartial counseling and contract-engineering. This function exists alongside other functions, such as the brokers’ traditional matchmaking, or the registration of property rights. This functional approach may prove very useful in all kinds of analyses of the real estate market, whether of political, legal, or economic nature. For instance, with respect to the merits and/or necessity of the Swedish impartiality rule, those wishing to amend the law and introduce a system of overtly partial brokers acting solely on behalf of their principal have to face the question of what is to become of counseling for the principal’s counterpart. Should the counterpart be forced to choose between hiring their own legal counsel or make do without? Further, those wishing to contest the mandatory notarial intervention in real estate transactions have to face the same question: what is to happen to impartial counseling, given not only to the client but also to the client’s counterpart? Both instances illustrate the common feature shared by the two examined professions: impartial contract-engineering and counseling. To complete the picture and cover the whole arena of real estate transactions, the next logical step is therefore to compare and analyze different systems for registration of property rights. Doing so will hopefully achieve a tool for examining the real estate market that will prove useful indeed, particularly in future discussions concerning European harmonization.
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| 2. |
- Bellander, Rickard
(författare)
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Testing large samples of PCM in water calorimeter and PCM used in room applications by night-air cooling
- 2005
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Licentiatavhandling (övrigt vetenskapligt)abstract
- The latent-heat-storage capacity in Phase-Change Materials can be used for storing or releasing energy within a small temperature interval. Upon the phase transition taking place in a narrow temperature span, the material takes up or releases more energy compared to sensible heat storage. For an ideal phase-change material, the transition temperature is a single value, but for the most common phase-change materials on the market, used in building applications, the transition temperature is distributed within a temperature range of several degrees.Integration of phase-change materials in building applications can be effected in several ways, for example by impregnating phase-change materials into porous building materials like concrete, wallboards, bricks or complements of the building structure. Integrating storages filled with phase-change materials makes other implementations, for instance accumulating tanks or envelopes as presented in this thesis, in an air heat exchanger. An appropriate phasetransition temperature of the supposed application is critical to the functionality of the material. For example, in cooling applications, the transition temperature of the material should be a few degrees lower than the requested comfort temperature in the building, and the opposite for heating applications.In order to assess the thermal properties and the durability of the material, a watercalorimetric equipment was developed and employed in an accelerated testing programme. The heat capacity of the material and in particular possible change in the heat capacity over time, after thermal cycling of the material, were measured. In the thermal cycling of the material from solid to liquid phase, the temperature rise and required energy supply were recorded. The testing programme was undertaken according to control procedures and documents. In order to be able to utilize the heat-storage capacity in the best way, it is necessary to gain knowledge about thermal properties of the material, especially the long-term behaviour of the material and the deterioration rates of the thermal properties.A semi-full-scale air heat exchanger based on phase-change material was developed and tested under real temperature conditions during the summer of 2004. The test results were used to compare and verify computer simulations made on a similar plant. The air heat exchanger utilises the ambient diurnal temperature swing to charge and discharge the phasechange material. The material tested in the calorimeter and in the air heat exchanger has an estimated phase-change temperature of about 24 °C.
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| 5. |
- Chilo, José
(författare)
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Filtering extracting features from infrasound data
- 2006
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Licentiatavhandling (övrigt vetenskapligt)abstract
- The goal of the research presented in this thesis is to extract features, to filter and get fingerprints from signals detected by infrasound, seismic and magnetic sensors. If this can be achieved in a real time system, then signals from various events can be detected and identified in an otherwise torrent data.Several approaches have been analyzed. Wavelet transform methods are used together with ampligram and time scale spectrum to analyze infrasound, seismic and magnetic data. The energy distribution in the frequency domain may be seen in wavelet scalograms. A scalogram displays the wavelet coefficients as a function of the time scale and of the elapsed time. The ampligram is a useful method of presentation of the physical properties of the time series. The ampligram demonstrate the amplitude and phase of components of the signal corresponding to different spectral densities. The ampligram may be considered as an analogy to signal decomposition into Fourier components. In that case different components correspond to different frequencies. In the present case different components correspond to different wavelet coefficient magnitudes, being equivalent to spectral densities. The time scale spectrum is a forward wavelet transform of each row (wavelet coefficient magnitude) in the ampligram. The time scale spectrum reveals individual signal components and indicates the statistical properties of each component: deterministic or stochastic.Next step is to distinguish between different sources of infrasound on-line. This will require signal classification after detection is made. The implementation of wavelet – neural network in hardware may be a first choice. In this work the Independent Component Analysis is presented to improve the quality of the infrasonic signals by removing background noise before the hardware classification. The implementation of the discrete wavelet transform in a Field Programmable Gate Array (FPGA) is also included in this thesis using Xilinx System Generator and Simulink software.A study of using infrasound recordings together with a miniature 3-axis fluxgate magnetometer to find meteorites as soon as possible after hitting the earth is also presented in this work.
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| 6. |
- Dejanovic, Slavko
(författare)
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Elastic interconnection micro contact stuctures-manufacture and characterisation
- 2004
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Licentiatavhandling (övrigt vetenskapligt)abstract
- ...The task that was put to the author of this thesis was to find solutions for manufacturing of single elastic micro bump contacts as well as complete elastic sockets and interconnections down to the carrier substrate. Use of more or less standard equipment and methods in electronic industry was a demand too. The casting mold was made in Si by anisotropic wet etching of Si wafers in KOH, and in order to manage and keep preferred distance between casting mold and the currier substrate small columns of SU 8 photo resist were made on the mold as well. For prevention of silicone elastomer sticking to the mold, Parylene was deposited on to the mold. Additionally, making of via holes is treated in this work. Two techniques were tried practically. Laser drilling has shown some potential but RIE of silicone elastomer was found to be more useful so far. Deposition of required metal layers was realized by sputtering and patterning was conducted by applying electro plated photo resist and exposing in a low divergence light mask aligner. Some limited characterization of manufactured elastic micro bump contacts by measuring their contact resistance is also reported. Some advantages of elastic micro bump contact based structures relative to already existing similar interconnection techniques is discussed. Some discussions concerning remaining technological problems and thin film contact resistance estimation issues are presented as well as the promising results, up to 45 000 contact points per cm2, achieved by scaling down the structures.
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| 7. |
- Filipovic, Mirjana, et al.
(författare)
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Evolution of artificial defects during shape rolling
- 2007
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Licentiatavhandling (övrigt vetenskapligt)abstract
- Very often defects are present in rolled products. For wire rods, defects are very deleterious since the wire rods are generally used directly in various applications. For this reason, the market nowadays requires wire rods to be completely defect-free. Any wire with defects must be rejected as scrap which is very costly for the production mill. Thus, it is very important to study the formation and evolution of defects during wire rod rolling in order to better understand and minimize the problem, at the same time improving quality of the wire rods and reducing production costs.The present work is focused on the evolution of artificial defects during rolling. Longitudinal surface defects are studied during shape rolling of an AISI M2 high speed steel and a longitudinal central inner defect is studied in an AISI 304L austenitic stainless steel during ultra-high-speed wire rod rolling. Experimental studies are carried out by rolling short rods prepared with arteficial defects. The evolution of the defects is characterised and compared to numerical analyses. The comparison shows that surface defects generally reduce quicker in the experiments than predicted by the simulations whereas a good agreement is generally obtained for the central defect.
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| 8. |
- Forsgren, Daniel
(författare)
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Robust scalable video multicast and performance issues in wireless LANs
- 2004
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Licentiatavhandling (övrigt vetenskapligt)abstract
- The successful deployment of multimedia streaming services, over a multiservice IP-based heterogeneous infrastructure, requires resource-efficient, scalable and reliable network transport. This can be achieved using end-to-end methods, e.g. adaptive application-level source and channel coding. Network assistance can also be employed, e.g. multicast routing and Quality of Service (QoS) provisioning mechanisms. Multicast transport in particular presents many challenges with respect to scalability, reliability and congestion control. Furthermore, with an increasing use of bandwidth-constrained and unreliable access networks such as Wireless LAN (WLAN) networks, implementing adaptive schemes which can utilize the scarce network resources is important. In this thesis, topics in the area of adaptive rate, congestion and error control schemes for video streaming applications over heterogeneous networks are studied. The contributions evaluate the end-to-end video quality gain from using a network-driven approach, based on router priority dropping and temporal video scalability. Furthermore, the end-to-end video quality gain from using a receiverdriven layered video multicast scheme is studied, using a dynamic Forward Error Correction (FEC) based error control scheme to enhance transport robustness. The scheme is evaluated in a WLAN infrastructure network setting. Finally, a model-based measurement study of WLAN access point forwarding behavior is included.
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| 10. |
- Fält, Susanna
(författare)
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Model Studies of Cellulose Fibers and Films and Their Relation to paper Strenght
- 2003
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Licentiatavhandling (övrigt vetenskapligt)abstract
- The objectives of this work were (i) to develop a new methodfor the preparation of thin cellulose model films, (ii) to usethese model films for swelling measurements and (iii) to relatethe swelling of fibers and films to the dry strength ofpaper.In the new film preparation method, NMMO(N-methylmorpholine-N-oxide) was used to dissolve cellulose andDMSO (dimethyl sulfoxide) was added to control the viscosity ofthe cellulose solution. A dilute solution of the cellulose wasspin-coated onto a silicon oxide wafer and the cellulose filmthus prepared was then precipitated in deionised water. Asaturated layer of glyoxalated-polyacrylamide was used toanchor the film onto the silicon oxide wafer. This proceduregave films with thicknesses in the range of 20-270 nm. Thefilms were cleaned in deionised water and were found by ESCAanalysis and contact angle measurements (θ<20°)to be free from solvents. Solid state NMR measurements onfibers spun from NMMO also indicated that the model filmconsisted of about 50% crystalline material and that thecrystalline structure was of the cellulose II type.Determination of the molecular weight distribution of thecellulose surface material showed that the NMMO treatmentcaused only a minor breakdown of the cellulose chains and thatlow molecular mass oligomers of glucose were not created.It was further shown that atomic force microscopy (AFM)measurements could be used to determine the thicknessof thecellulose films, in both the dry and wet states. The thicknesswas determined as the height difference between the top surfaceand the underlying silica wafer measured at a position where anincision had been made in the cellulose film. The cellulosesolutions were also directly spin-coated onto the crystal usedin the Quartz crystal microbalance (QCM-D), pre-treated withthe same type of anchoring polymer. With this application,these model surfaces were shown to be suitable for swellingmeasurements with the QCM-D. The extent of swelling and theswelling kinetics in the presence of electrolytes, such asNaCl, CaCl2 and Na2SO4, and at different pH were measured inthis way. The films were found to be very stable during thesemeasurements and the results were comparable to the swellingresults obtained for the corresponding pulps. The swelling ofboth fibers and films followed the general behavior ofpolyelectrolyte gels in the presence of electrolytes and was inaccordance with the Donnan equilibrium theory. The films havebeen shown to differ from fibers with regard to the absence ofa covalent interior network. This influences the evaluation ofthe deswelling effects measured on the model films. Theswelling effect seen with different electrolytes has also beenconsidered in relation to the tensile strength of paperprepared from a kraftliner-pulp. In this study, it was foundthat there was no direct relationship between the swelling ofthe fibers, measured as WRV, and the strength of the paper inthe presence of different electrolytes at pH 5.KEYWORDS:absorption, carboxymethyl cellulose,cellulose, cellulose fibers, dissolving pulps, donnanequilibrium, electrolytes, film, ion exchange, ionization,kinetics, liner boards, microscopy, spinning, surfaces,swelling, tensile strength, water, water retention value.
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