This project deals with design and realization of the spectrum analyser using double superheterodyne topology with frequency range up to 500MHz. This work solves hardware blocks like phase lock loops, intermediate frequency filters, saw filter, crystal filter, logarithmic detector. Content of work is also design description and tuning of spectrum analyzer parts.

This diploma thesis describes optimization of assembly working place of cylinder locks brand FAB company ASSA ABLOY Rychnov, s.r.o. Theoretical part deals with universal process for designing manufacturing systems and for description of selected analytical and engineered methods and ergonomics .The practical part shows evaluation of current situation and create new time standards. in accordance with are designed 3 variants of the solution for lay out working place. For each variant is created simulation model, which is explore especially working load and automatic filling machine. The various options are compared by weight valuation and the most optimal is determined by maximal work in process and optimal warehouse supply of input components.

Academic thesis, drawn up within the framework of engineering studies, presents a proposal optimal production of garage door lock striker. The part is manufactured from steel sheet S275JR of 1.5 mm thickness. By the analysis of its possible methods of production, with regard to the required annual series of 500,000 pieces, was chosen technology of manufacturing the part in the compound tool by blanking and bending processes. For these technologies was designed solution of the compound tool and automatic production line with the eccentric crank press SMERAL S160, where is the compound tool fixed. The measure of financial performance of manufacturing the part is economical assessing. In the current state is investment return in the production of 179,186 pieces of the parts.

Grunden till uppsatsen är Sveriges klimatpolitiska ramverk där följande mål satts upp: “senast år 2045 ska Sverige inte ha några nettoutsläpp av växthusgaser till atmosfären, för att därefter uppnå negativa utsläpp.” (Naturvårdsverket 2019b). Landsbygden är i fokus och relationen mellan stad respektive land beskrivs liksom attityder och beteenden kopplat till klimatfrågan. Uppsatsen berör därigenom historiska beslut, ojämlikheter och maktpositioner som ligger till grund för de förutsättningar som landsbygden har idag. Intervjuer med landsbygdskommuner har gjorts vilket syftar till att kunna studera möjligheter och hinder för landsbygden att bli fossilfri till senast år 2045. Genom en kvalitativ innehållsanalys lyfts för- och nackdelar inom sju teman som påverkar förutsättningar och därmed också möjligheter och hinder i landsbygdskommuner arbete i målet. För att kunna diskutera ämnet djupare beskrivs teorierna path dependency, ekologisk modernisering, risksamhället, politisk ekologi samt centrum/periferi-teorin. Uppsatsen diskuterar bland annat hur samarbete kan påverkas genom maktrelationer liksom förklarar hur landsbygden befinner sig i en inlåsning på grund av tidigare beslut som samhället har tagit. Beslut som lett till hinder i nuvarande och framtida arbete. Det belyses även hur viktigt det är med ett personligt engagemang när landsbygdskommunerna ska ta sig an klimatfrågan. / The essay is based on Sweden's climate policy framework where the following goals have been set: "by 2045, Sweden will have net zero carbon dioxide emission, in order to achieve negative emissions thereafter." (Naturvårdsverket 2019b). The countryside is the focus of the essay, where the relationship between city and countryside is described as well as attitudes and behaviors linked to climate change. The essay refers to historical decisions, inequalities and power, factors that shaped the rural areas and their conditions to work with climate mitigation and adaptation. Interviews with rural municipalities have been conducted, which aims to study the possibilities and barriers for the countryside to become fossil-free by the year 2045. A qualitative content analysis highlights the pros and cons of seven themes that affect the conditions both opportunities and obstacles in rural municipalities work to reach the target. To be able to discuss the topic more deeply, following theories are described; path dependency, ecological modernization, the risk society, political ecology and the center-/periphery theory. The essay discusses how cooperation can be affected by power and explains how the countryside is in lock-ups depending on historical decisions, which leads to obstacles in current and future work. It is also highlighted how important it is with a personal commitment when the rural municipalities work with climate mitigation and adaptation.

Especially important in developing improved cochlear implants is to develop a deeper understanding of the processing of sound in the central auditory nervous system, for both acoustic and electrical stimulation of the auditory system. This thesis contributes to this objective through cochlear implant psychoacoustic research and modelling of auditory system sound processing. The primary hypothesis of the thesis was that the same underlying mechanisms are responsible for sound perception in both electric and acoustic hearing. Thus, if appropriate models are created for normal acoustic hearing, they should be able to predict psychoacoustic data from electric hearing when the model input is changed from acoustic to electrical stimulation. A second hypothesis was that electrode interaction could be measured by gap detection and that predictions of current spread in the cochlea could be obtained from gap detection data. Measured gap detection thresholds in three cochlear implant users were a function of the physical separation of electrode pairs used for the two stimuli that bound the gap, resulting in a U-shaped "tuning curve" for this across-channel condition. Models of gap detection in acoustic and electric hearing were created to explain these U-shaped curves. A technique was developed to obtain estimates of cochlear current spread from gap detection data. Predictions of electrode discrimination were obtained from the current spread estimates, and these were compared to data measured in cochlear implant users. The model for acoustic hearing could predict the U -shaped curves found in acoustic hearing, and when the input spike train statistics were adapted appropriately, the same model could also predict gap detection data for electric hearing. Predictions of current spread exhibited current peaks close to the electrodes and had length constants between 0.5 mm and 3 mm, similar to measured data quoted in literature. Predictions of electrode discrimination correlated well with measured data in one subject, but not in two others. The primary conclusion from the modelling results is that if the mechanisms of central auditory nervous system signal processing of acoustic stimulation are understood, these same mechanisms may be applied to understand the signal processing in auditory electrical stimulation and to predict psychoacoustic data for electrical stimulation. A second conclusion is that spatial mechanisms, as opposed to temporal mechanisms, may determine gap detection thresholds in the across-channel condition. This is important in cochlear electrical stimulation, where spike trains are strongly phase-locked to the stimulus and temporal mechanisms cannot predict gap detection thresholds. A third conclusion is that gap detection can be used to measure channel interaction and to predict current distributions in the cochlea, although there is still uncertainty about the accuracy of these predictions. However, the gap detection data and predictions for current distributions indicate that electrodes are not discriminable when they are closer than 1.5 mm. The implication of these last two conclusions taken together is that research should focus on obtaining better spatial resolution in cochlear implants. / Thesis (PhD)--University of Pretoria, 2001. / Electrical, Electronic and Computer Engineering / Unrestricted

Many entrepreneurial research studies underline implicitly the positive evidence of a connection between the economic success and networks. However, any social relationship which an entrepreneur maintains does not necessarily have positive effects and consequently does not represent a capital to the new established organization. Dysfunctional effects result from the circumstance that the different actors have different, sometimes contrary requirements on networks. The aim of our article is to explore dilemmatic constellations within networks and to enable entrepreneurial founders or consultants to face the related challenges.

This essay compares the theory of human rights and human responsibility to the reality in the Swedish government. The aim is to understand what the            philosophers in this case study are saying about human rights and responsibility. The essay also asks how the philosopher’s theories compare to the reality in the Swedish State.  When comparing the theory of John Locke, Jean-Jacques Rousseau and Robert Nozick to the Swedish government and laws we understand that Rousseau is the most conservative and yet the one out of the three philosophers that are closest to  Swedish State reality. Locke is not very different from Rousseau and a lot of how the Swedish State works is compatible whit his thoughts. Nozick, being the one that is most liberal, is then the one that has ideas that are most different from the Swedish State 2021 even though Sweden is known to be one of the most liberal and equal states in the world.

The aim of this dissertation is to prepare a study of a small hydroelectric power plant as part of the Přelouč navigation level II. The preparation deals with one of the possible variants for the layout design of given constructions. The layout design of a weir with an adjacent lock chamber which secures navigability for the stretch of the Elbe River located between the river kilometers 949,23 and 951,20 near the city of Přelouč in the Pardubice District is also included in the study. The introduction chapter contains the assessment of the environment, which is followed by the specification of the exact placement of the constructions. In the following chapter, a particular type of the hydroelectric power plant machinery is designed based on the available hydrological information and gradient conditions. The final chapter contains the design of the constructional technological layout of an machine room in the form of a technical report and drawing documentation.

京都大学 / 0048 / 新制・課程博士 / 博士(工学) / 甲第18227号 / 工博第3819号 / 新制||工||1585(附属図書館) / 31085 / 京都大学大学院工学研究科電気工学専攻 / (主査)教授 小林 哲生, 教授 引原 隆士, 教授 小山田 耕二 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM

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