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Funktionella element som registreringshinder : en undersökning av tillämpningen av det absoluta registreringshindret i art. 7.1 e) ii) varumärkesförordningen och dess förhållande till hybridkännetecken / Functional elements as a ground for refusal : a study on the application of the absolute ground for refusal in art. 7.1 e) ii) of the Trade Mark Regulation and its relation to hybrid signsTibell, Emma January 2019 (has links)
Varumärkesrätten innefattar en bred definition av vilka kännetecken som kan konstituera ett varumärke, vilken inkluderar formen på en vara. När kännetecknet består av en varuform utgör således varan i sig kännetecknet och därmed varumärket. Vid en varumärkesregistrering ska bedömningen av olika kategorier av kännetecken inte skilja sig åt, men för varuformer finns ytterligare hinder vid registrering jämfört med andra typer av kännetecken. Ett sådant registreringshinder avser specifikt funktionella former. Många former tenderar att vara funktionella till viss grad, vilket aktualiserar art. 7.1 e) ii) VmF. Artikeln föreskriver ett absolut registreringshinder mot att registerna former som endast består av ”en varas form eller annan egenskap hos varan som krävs för att uppnå ett tekniskt resultat”. Om en varuform hindras registrering enligt artikeln, är uteslutningen från registrering permanent. Det innebär att registreringshindret inte kan övervinnas även om formen förvärvar särskiljningsförmåga på marknaden. EUD har uttalat att det inte vore skäligt att neka registrering av varuformer endast på grund av att de innehar några funktionella element. För att ett kännetecken ska falla inom ramen för artikeln behöver således en forms alla väsentliga särdrag falla inom ramen för bestämmelsen. Detta medför viss problematik när det kommer till hybridkännetecken vilka innehar vissa element som är funktionella, men även andra element som är icke-funktionella. Enligt gällande rätt kan hybridkännetecken registreras som varumärken om de innehar icke-funktionella särdrag som anses vara väsentliga. Hela formen av ett hybridkännetecken kan således registreras som ett varumärke under förutsättning att endast några av de väsentliga särdragen krävs för att uppnå den tekniska funktionen. Genom en undersökning av rättspraxis konstateras att EUD utför en fri och långtgående undersökning vid bedömning av vad som utgör en forms väsentliga särdrag och dessa särdrags eventuella funktion. EUD är inte bunden till vad som anges i varumärkesansökan, utan undersöker även den faktiska varan på marknaden för vilket kännetecknet är ämnat att användas. EUD verkar generellt vara restriktiv med att låta tredimensionella former registreras, inte minst när de innehåller funktionella element. Möjligen beror den negativa inställningen till att registrera hybridkännetecken på bristen av effektiva lösningar att tydligt undanta de funktionella elementen från registrering. Vid en registrering av hybridkännetecken uppstår även intressanta aspekter ur intrångssynpunkt eftersom formen är registrerad som en helhet, även om vissa väsentliga särdrag inte är ämnade att omfattas av ensamrätten. Vid analoga tillämpningar av rättspraxis framstår det som att dessa element, utan att det explicit framgår av exempelvis en disclaimer, ska vara undantagna från den ensamrätt som erhålls varumärkesinnehavaren. / The trade mark law includes a very broad definition of signs that can constitute a trade mark, which includes the shape of a product. When a sign consists of the shape of a product, the product itself becomes the sign and thus the trade mark. In the case of a trade mark registration, the assessment should not differ between different categories of signs. However, when it comes to registration for signs consisting of the shape of a product, there are further obstacles to overcome before protection can be granted compared to other types of signs. Many shapes tend to be functional to some extent, which brings relevance to the absolute ground for refusal found in art. 7.1 e) ii) EUTMR. The article prohibits registration of signs which consist exclusively of “the shape, or another characteristic, of goods which is necessary to obtain a technical result”. If the registration of a sign is prohibited by the article, the exclusion from registration is permanent. This means that the ground for refusal cannot be overcome even if the sign acquires distinctiveness on the market. The CJEU has stated that it would not be reasonable to deny a shape registration only on the sole ground that it has some functional elements. Therefore, in order for a sign to fall within the scope of the article, all the essential characteristics of a shape must fall within the scope of the provision. This causes certain difficulties when it comes to hybrid signs, which possess some elements that are functional, but also other elements that are non-functional. Under current law, hybrid signs can be registered as trade marks if the non-functional elements are considered as essential. The entire form of a hybrid sign can thus be registered as a trade mark only if some, but not all, essential characteristics are required to achieve the technical function. By examining case law, it can be stated that the CJEU carry out a free and extensive examination when assessing what constitutes the essential characteristics of a shape and the possible function of these elements. The CJEU is not bound to the trade mark application but also examines the actual goods for which the sign is intended to be used. The CJEU generally seems to be restrictive in allowing registration for three-dimensional shapes, especially in regard to those incorporating functional elements. This might be the case since there is no good way to clearly exclude the functional elements from the registration. However, when registering a hybrid sign, interesting aspects also arise from the infringement point of view since the shape is registered as a whole but contains certain essential features, which are not intended to be covered by the exclusive right granted. In analogous applications of case law, it appears that these elements, without being explicitly stated in e.g. a disclaimer, must be excluded from the exclusive right granted to the proprietor.
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Ultrafast Raman Loss Spectroscopy (URLS) : Understanding Resonant Excitation Response And Linewidth ChangesAdithya Lakshmanna, Y 11 1900 (has links) (PDF)
Raman spectroscopy involves change in the polarizability of the molecular system on excitation and is based on scattering process. Spontaneous Raman scattering is a two photon process, in which the input light initiates the excitation, which then leads to an emission of another photon due to scattering. It is extensively used to understand molecular properties. As spontaneous Raman scattering is a weak process, the detection of these weak Raman photons are rather difficult.
Alternatively, resonance Raman (RR) scattering is another technique where the excitation wavelength is chosen according to the material under study. The excitation wavelength is chosen to be within the absorption spectrum of the material under study. RR spectroscopy not only provides considerable improvement in the intensity of the Raman signal, but also provides mode specific information i.e. the modes which are Franck-Condon active in that transition can be observed. There are reports on RR studies of many systems using pulsed light as an excitation source. It is necessary to use at least two pulsed laser sources for carrying out the time resolved RR spectroscopy. A single pulse source for excitation would lead to compromise either with temporal or spectral resolution which is due to the uncertainty principle. If an excitation pulse has pulse width of ~100 femtoseconds then the spectral resolution will be ~ 150 cm-1. It is clear now that for improving the temporal and spectral resolution simultaneously, usage of single pulse for Raman experiments (spontaneous scattering) is not adequate. The usage of multiple laser pulses may provide the way out to improve the resolutions.
Nonlinear spectroscopy in a broad view helps in understanding the structural and dynamical properties of the molecular systems in a deeper manner. There are a number of techniques as a part of nonlinear spectroscopy that have emerged in due course to meet different requirements and to overcome some difficulties while understanding the molecular properties. Stimulated Raman (SRS) gain, coherent anti-Stokes Raman scattering (CARS) and the inverse Raman spectroscopy are a few to mention as third order nonlinear spectroscopic techniques which give the similar kind of information about the molecular systems. Stimulated Raman scattering is a more general process involved in nonlinear Raman processes. SRS involves at least two laser pulses and the difference in their frequencies should match with the vibrational frequency of the molecule. The polarization has to be matched between the Raman pump and the Raman probe pulses.
We have developed a new nonlinear Raman technique in our laboratory named as ultrafast Raman loss spectroscopy (URLS) using the principles of nonlinear Raman scattering. It involves the Raman pump (~ 1 picosecond (ps) or ~ 15 cm-1spectral resolution) and Raman probe as a white light continuum (100 fs) whose frequency components ranges from 400-900 nm. The laser system consists of Tsunami which is pumped by a Millennia laser and Spitfire-Pro, a regenerative amplifier which is pumped by an Empower laser. Tsunami provides a 100 fs, 780 nm centered, 80 MHz and ~6 nJ energy laser pulses. The Tsunami output is fed into Spitfire to amplify its energy and change the repetition rate to 1 KHz. The pulse length of the input pulse is preserved in amplification. The output of amplifier is split into two equal parts; one part is used to pump the Optical Parametric Amplifier (OPA) in order to generate wavelengths in the range 480-800 nm. The output of the OPA is utilized to generate Raman pump which has to be in ps in order to get the best spectral resolution. A small portion of the other part of amplifier output is utilized to generate white light source for the Raman probe. The remaining part of the amplifier output is used to pump TOPAS to generate wavelengths in the ultraviolet region.
URLS has been applied to many molecular systems which range from non-fluorescent to highly fluorescent. URLS has been demonstrated to be very sensitive and useful while dealing with highly fluorescent systems. URLS is a unique technique due to its high sensitivity and the Raman loss signal intensity is at least 1.5-2 times higher as compared to the Raman gain signal intensities. Cresyl violet perchlorate (CVP) is a highly fluorescent system. URLS has been applied to study CVP even at resonance excitation. Rhodamine B has also been studied using URLS. Spontaneous Raman scattering is very difficult to observe experimentally in such high quantum yield fluorescent systems. The variation in the lineshapes of the Raman bands for different RP excitation wavelengths in URLS spectra shows the mode dependent behavior of the absorption spectrum. The experimental observation of variation in the lineshape has been accounted using theoretical formalism.
The thesis is focused on discussing the development of the new nonlinear Raman spectroscopic technique URLS in detail and its applicability to molecular systems for better understanding. A theoretical formalism for accounting the uniqueness of URLS among the other nonlinear Raman techniques is developed and discussed in various pictorial representations i.e. ladder, Feynman and closed loop diagrams. A brief overview of nonlinear spectroscopy and nonlinear Raman spectroscopy is presented for demonstrating the difference between the URLS and the other nonlinear Raman techniques.
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LouLou : An exploration in the role of physical objects in the two-dimensional world of therapyMohammadi, Paria January 2020 (has links)
The world health organization has predicted that by 2030, depression will cause more early deaths and disability than cancer, stroke, or accidents. The number of burnouts has been increasing during the past years since we are so focused on our materialistic needs, educating ourselves in managing our devices. Meanwhile, we have not learned how to manage our own emotions. In our Swedish society today, we have people from different backgrounds and linguistic skills that find it difficult to talk about their emotional states and ask for help. At the same time, most of the methods used in therapy are done verbally or in writing that can be hard, even for those who speak the same language. In my project, I have interviewed psychotherapists and individuals who have attended therapy sessions. Speaking to a therapist, I realized the lack of physical objects in this field where almost everything is communicated verbally or on paper. During my process, I have learned about the importance of three-dimensional objects for a patient and how these objects can be used as aids to help one open up and express emotions. In this area, I have explored the following question: Whether or not emotions would abstract into forms? Can we describe our mixed emotions by using shapes, objects, and colors? What can I, as a designer, contribute to the two-dimensional world of therapy and mental health? Based on the results from several workshops and studying Robert Putchik’s theory of emotions, I created a set of tools. These aiding tools help the patient to open up about mixed feelings and break them down into primary emotions. These tools aim to help the patient to address and categorize emotions and easily communicate with the therapist. / Världshälsoorganisationen har förutspått att vid 2030 kommer depression att orsaka mer tidiga död och funktionshinder än cancer, stroke eller olyckor. Antalet utbrändhet har ökat under de senaste åren eftersom vi är så fokuserade på våra materialistiska behov, lär oss att hantera tekniken men vi har inte lärt oss hur vi ska hantera våra egna känslor. Detta är aktuell idag i det svenska samhället där folk med olika bakgrund som har språksvårigheter lyckas inte uttrycka deras känslomässiga tillstånd för att få det hjälp det behöver. Samtidigt, de flesta metoderna som används i terapi sker muntligt eller skriftligt, vilket kan vara svårt även för dem som pratar samma språk. I mitt projekt har intervjuat psykoterapeuter och individer som har varit på terapisessioner. Under processens gång har jag insett betydelsen som ett tredimensionellt objekt kan ha för patienten och hur detta kan användas som hjälpmedel och stöd. Inom detta område har jag bearbetat följande frågor: Huruvida skulle känslor abstraheras i former? Kan vi beskriva våra blandade känslor med hjälp av objekt? Vad kan jag som designer bidra till den tvådimensionella världen av terapi och psykisk hälsa?
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Operators for Multi-Resolution Morse and Cell Complexes / Оператори за мулти-резолуционе комплексе Морза и ћелијске комплексе / Operatori za multi-rezolucione komplekse Morza i ćelijske komplekseČomić Lidija 03 March 2014 (has links)
<p>The topic of the thesis is analysis of the topological structure of scalar fields and<br />shapes represented through Morse and cell complexes, respectively. This is<br />achieved by defining simplification and refinement operators on these<br />complexes. It is shown that the defined operators form a basis for the set of<br />operators that modify Morse and cell complexes. Based on the defined<br />operators, a multi-resolution model for Morse and cell complexes is constructed,<br />which contains a large number of representations at uniform and variable<br />resolution.</p> / <p>Тема дисертације је анализа тополошке структуре скаларних поља и<br />облика представљених у облику комплекса Морза и ћелијских комплекса,<br />редом. То се постиже дефинисањем оператора за симплификацију и<br />рафинацију тих комплекса. Показано је да дефинисани оператори чине<br />базу за скуп оператора на комплексима Морза и ћелијским комплексима.<br />На основу дефинисаних оператора конструисан је мулти-резолуциони<br />модел за комплексе Морза и ћелијске комплексе, који садржи велики број<br />репрезентација униформне и варијабилне резолуције.</p> / <p>Tema disertacije je analiza topološke strukture skalarnih polja i<br />oblika predstavljenih u obliku kompleksa Morza i ćelijskih kompleksa,<br />redom. To se postiže definisanjem operatora za simplifikaciju i<br />rafinaciju tih kompleksa. Pokazano je da definisani operatori čine<br />bazu za skup operatora na kompleksima Morza i ćelijskim kompleksima.<br />Na osnovu definisanih operatora konstruisan je multi-rezolucioni<br />model za komplekse Morza i ćelijske komplekse, koji sadrži veliki broj<br />reprezentacija uniformne i varijabilne rezolucije.</p>
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Structural Similarity: Applications to Object Recognition and ClusteringCurado, Manuel 03 September 2018 (has links)
In this thesis, we propose many developments in the context of Structural Similarity. We address both node (local) similarity and graph (global) similarity. Concerning node similarity, we focus on improving the diffusive process leading to compute this similarity (e.g. Commute Times) by means of modifying or rewiring the structure of the graph (Graph Densification), although some advances in Laplacian-based ranking are also included in this document. Graph Densification is a particular case of what we call graph rewiring, i.e. a novel field (similar to image processing) where input graphs are rewired to be better conditioned for the subsequent pattern recognition tasks (e.g. clustering). In the thesis, we contribute with an scalable an effective method driven by Dirichlet processes. We propose both a completely unsupervised and a semi-supervised approach for Dirichlet densification. We also contribute with new random walkers (Return Random Walks) that are useful structural filters as well as asymmetry detectors in directed brain networks used to make early predictions of Alzheimer's disease (AD). Graph similarity is addressed by means of designing structural information channels as a means of measuring the Mutual Information between graphs. To this end, we first embed the graphs by means of Commute Times. Commute times embeddings have good properties for Delaunay triangulations (the typical representation for Graph Matching in computer vision). This means that these embeddings can act as encoders in the channel as well as decoders (since they are invertible). Consequently, structural noise can be modelled by the deformation introduced in one of the manifolds to fit the other one. This methodology leads to a very high discriminative similarity measure, since the Mutual Information is measured on the manifolds (vectorial domain) through copulas and bypass entropy estimators. This is consistent with the methodology of decoupling the measurement of graph similarity in two steps: a) linearizing the Quadratic Assignment Problem (QAP) by means of the embedding trick, and b) measuring similarity in vector spaces. The QAP problem is also investigated in this thesis. More precisely, we analyze the behaviour of $m$-best Graph Matching methods. These methods usually start by a couple of best solutions and then expand locally the search space by excluding previous clamped variables. The next variable to clamp is usually selected randomly, but we show that this reduces the performance when structural noise arises (outliers). Alternatively, we propose several heuristics for spanning the search space and evaluate all of them, showing that they are usually better than random selection. These heuristics are particularly interesting because they exploit the structure of the affinity matrix. Efficiency is improved as well. Concerning the application domains explored in this thesis we focus on object recognition (graph similarity), clustering (rewiring), compression/decompression of graphs (links with Extremal Graph Theory), 3D shape simplification (sparsification) and early prediction of AD. / Ministerio de Economía, Industria y Competitividad (Referencia TIN2012-32839 BES-2013-064482)
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All-fiber pulsed coherent Doppler lidar system with multiple wavelength-channelsTöws, Albert 06 October 2021 (has links)
This work relates to the remote sensing technologies to determine wind velocity and its related phenomena. Laser-based pulsed systems with heterodyne detection allow a very sensitive measurement of particles’ velocity in the atmosphere. The heterodyne detection theory and the essential principles and properties of this technology are presented.
An all-fiber coherent Doppler lidar system in master-oscillator power-amplifier design with a novel multi-wavelength channel configuration was developed and introduced, characterized, and validated in this work. The fiber amplifier is a crucial component of multi-channel all-fiber systems and is therefore discussed with special emphasis on non-linear effects and pulse distortions. A novel feedback controlled pulse-shaping unit was developed to control pulse energy and the shape of the amplified pulses of each channel.
Each and every wavelength-channel creates an independent speckle pattern, which is demonstrated by hard targets with diffuse character and atmospheric single-shot measurements, and compared with theoretical results. Utilizing four channels, the precision of the measured wind velocity can be improved and this feature is demonstrated with measured atmospheric return signals. A correlation technique is presented, which enables the enhancement of the SNR at higher backscattered powers by utilizing multiple channels.
The multi-wavelength system was designed to work with four wavelength-channels, which also allow measurements along the same line-of-sight with different channel configurations. These channels can be different in pulse shape, pulse length, and pulse repetition frequency. In this work, the resulting benefits of using multiple channels are shown with atmospheric measurements and scientific discussion of these is presented.:1. Introduction to the subject
2. Introduction to pulsed coherent Doppler lidar
3. Methodology: Multi-channel coherent Doppler lidar system
4. Erbium-doped fiber amplifier in a multi-channel lidar
5. Correlation properties of a multi-channel lidar system
6. Benefits of a multi-channel coherent Doppler lidar
7. Conclusions
A. Wind measurement examples
B. Range gate weighting function for different pulse shapes / Diese Arbeit befasst sich mit der Fernerkundungstechnologie zur Erfassung der Windgeschwindigkeit und den damit verbundenen Phänomenen. Die heterodyne Detektion der laserbasierten gepulsten Systeme ermöglicht eine sehr sensitive Messung von Partikelgeschwindigkeiten in der Atmosphäre. Sowohl die Theorie der heterodynen Detektion als auch die wesentlichen Eigenschaften und Grundsätze werden in dieser Arbeit diskutiert.
Ein neuartiges faserbasiertes kohärentes Doppler Mehrkanal-Lidarsystem wurde entwickelt, vorgestellt, charakterisiert und validiert. Dabei ist der faserbasierte Verstärker eine wesentliche Komponente in diesem System und wird somit in Bezug auf Nichtlinearitäten und Impulsverzerrungen besonders analysiert. Eine neuartige geregelte Impulsformung wurde entwickelt, um die Impulsenergie und die Impulsform unabhängig für jeden Kanal zu stabilisieren.
Jeder einzelne Kanal erzeugt ein unabhängiges Specklebild, welches durch Messungen am festen Ziel und durch atmosphärische Messungen präsentiert und mit theoretischen Berechnungen verglichen wird. Somit wird unter der Verwendung aller vier Kanäle des Systems die Geschwindigkeitsgenauigkeit erhöht, welches durch atmosphärische Messungen dargelegt wird. Zudem wird eine Korrelationstechnik vorgestellt, die das SNR bei höherer Rückstreuintensität weiter erhöht.
Das Mehr-Wellenlängensystem wurde für vier Kanäle ausgelegt, welches eine Beobachtung der Atmosphäre entlang der Sichtlinie unter sonst gleichen Bedingungen ermöglicht. Diese Kanäle können sich sowohl in der Impulsform, in der Impulslänge als auch in der Pulsfolgefrequenz unterscheiden. Diese Arbeit zeigt die wesentlichen Vorteile eines solchen Mehrkanal-Lidarsystems mit atmosphärischen Messungen und wissenschaftlichen Ausarbeitungen.:1. Introduction to the subject
2. Introduction to pulsed coherent Doppler lidar
3. Methodology: Multi-channel coherent Doppler lidar system
4. Erbium-doped fiber amplifier in a multi-channel lidar
5. Correlation properties of a multi-channel lidar system
6. Benefits of a multi-channel coherent Doppler lidar
7. Conclusions
A. Wind measurement examples
B. Range gate weighting function for different pulse shapes
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Influence of mathematics vocabulary teaching on primary six learners’ performance in geometry in selected schools in the Greater Accra region of GhanaOrevaoghene, Ngozi Obiageli 12 1900 (has links)
The study investigated the strategies used in teaching geometry in primary six as well as the perception of teachers on geometry vocabulary teaching, how geometry vocabularies were taught and, lastly, how the teaching of geometry vocabulary influenced primary six learners’ performance in geometry. The Van Hiele Theory of geometrical thinking and the Constructivist Theory of learning guided the study. The study conveniently sampled 250 primary 6 learners and 7 primary 6 mathematics teachers from three privately-owned primary schools in the Greater Accra Region of Ghana. It combined quantitative and qualitative approaches, using O1–X–O2 design. Data collection instruments were 5-point Likert type scale questionnaires (one for teachers, one for learners), a pre-test and post-test of basic geometry, and a semi-structured one-on-one audio-recorded interview of a selected number of learners and all seven teachers. An intervention was carried out in-between the pre-test and post-test, where the researcher taught geometry vocabulary to participants. Quantitative data were analysed using tables, charts, and simple tests while the qualitative analysis involved the transcription of interviews that were coded, categorised and themed. The study found that geometry vocabularies were not taught and that the most commonly used strategy for teaching geometry was the drawing of 2-D shapes and models of 3-D objects on the board. The pre-test and post-test scores were analysed using a paired t-test and the results indicated that the intervention had a positive effect. The qualitative and quantitative results confirmed that the teaching of geometry vocabulary improved learners’ performance in geometry. The study developed a prototype lesson plan for teaching 3-D objects, a geometry vocabulary activity sheet, a sample assessment for prisms and pyramids and recommends a curricular reform to inculcate the teaching of geometry vocabulary in the curriculum with a geometry vocabulary list for learners in each year group, as contribution to knowledge in mathematics education. The study recommends further research to investigate the effect of geometry vocabulary teaching on learners’ performance in geometry across all year groups in the primary school. / Dyondzo a yi lavisisa maendlelo lawa ya tirhisiwaka ku dyondzisa geometry ya tidyondzo ta le hansi ta ka ntsevu, mavonelo ya vadyondzisi eka madyondziselo ya marito ya geometry, tindlela leti tirhisiweke ku dyondzisa marito ya geometry xikan’we ni ndlela leyi madyondziselo ya marito ya geometry ya khumbheke matirhelo ya vadyondzi va tidyondzo ta le hansi ta ka ntsevu. Dyondzo ya ndzavisiso yi leteriwile hi ehleketelelo ra Van Heile ra maehleketelelo ra ndlela ya geometry ni ndlela yo dyondzisa leyi pfumelelaka vadyondzi ku vumba vutivi ku nga ri ntsena ku teka vutivi ku suka eka mudyondzisi. Dyondzo ya vulavisisi yi hlawurile vana va 250 va tidyondzo ta le hansi ta ka ntsevu na 7 wa vadyondzisi va tnhlayo ta tidyondzo ta le hansi ta ka ntsevu kusuka eka swikolo swinharhu swo ka swi nga ri swa mfumo e Greater Accra etikweni ra Ghana. Yi hlanganisile qualitative na quantiutative aapproach, yi tirhisa O1–X–O2 design. Switirhisiwa swo hlengeleta data a swi ri swivutiso hi muxaka wa 5-point scale(yin’we ya vadyondizi, yin’we ya vadyondzi), xikambelwana xo rhanga na xo hetelela xa geometry ya masungulo, xikan’we na nkandziyiso wa mburisano wa vanhu vambirhi eka nhlayo ya vadyondzi ni vadzyondzisi hinkwavo va nkombo. Ntirho wo nghenelerisa wu endliwile exikarhi ka xikambelwana xo rhanga ni xo hetelela laha mulavisisi a nga dyondzisa marito ya geometry eka vanhu lava ngheneleleke. Quantitative data yi hleriwile hi ku tirhisa matafula, ti charts ni swikambelwana swo olova kasi vuhleri bya qualitative byi nghenise kutsariwa ka miburisano leyi hundzuluxiweke yi nyika tinhlamuselo leti tumbeleke. Leti vekiweke hi ku ya hi mintlawa ni maendlelo ya tona. Dyondzo ya ndzavisiso yi kume leswaku marito ya geometry a ya dyondzisiwanga ni leswaku maendlelo yo toloveleka ya ku dyondzisa geomeyry i ya drawing ya xivumbeko xa 2-D ni mfanekiso wa nchumu wa 3-D eka bodo. Mbuyelo wa Xikambelwana xo sungula na xo hetelela wu hleriwile hi ku tirhisa t-test (xikambelwana xa T) lexi hlanganisiweke naswona mbuyelo wu komba leswaku maendlelo himkwawo ya vile ni xiave lexinene. Mbuyelo wa Qualitative na Quantitative wu tiyisisile leswaku ku dyondzisiwa ka marito ya geometry swi antswisa matirhelo ya vadyondzi eka dyondzo ya geometry. Dyondzo ya vulavisisi yi antswisile kumbe ku kurisa prototype lesson plan ya ku dyondzisa 3-D objects, sheet ya migingiriko ya marito ya geometry na ku bumabumela circular reform ku dyondzisa madyondziselo ya marito ya geometry eka kharikhulamu leyi ng na nxaxamelo wa marito ya geometry ya vadyondzi eka ntlawa wa lembe na lembe, ta ni hi mpfuneto wa vutivi eka dyondzo ya tinhlayo. Dyondzo ya vulavisisi yi bumabumela leswaku vulavisisi byi ya emahlweni ku lavisisa xiave xa madyondziselo ya marito ya geometry eka matirhelo ya vadzyondzi eka geometry eka malembe ni mintlawa hinkwayo exikolweni xa le hansi. / Thuto ye e nyakisisitse ditsela tseo di somiswago go ruteng ga geometry go mphato wa bo tshelela, temogo ya barutisi go ruteng tlotlontsu ya geometry, tsela yeo ditlotlontsu tsa geometry di rutilwego ka gona go akaretswa le, sa mafelelo, ka mokgwa wo thuto ya tlotlontsu ya geometry e tutueditsego mabokgoni a barutwana ba mphato wa bo tshelela go dithuto tsa geometry. Thuto ya van Hiele ya geometrical thinking le ya constructivist theory of learning di hlahlile thuto ye. Thuto ye e somisitse ga bonolo mohlala wa barutwana ba 250 ba mphato wa 6 le barutisi ba dipalo ba supa ba go ruta mphato wa 6 go tswa dikolong tsa tlase tse tharo tsa go ikema seleteng sa Greater Accra Region of Ghana. Thuto ye e kopantse mekgwa ya bontsi/dipalopalo (quantitative) le boleng (qualitative), go somiswa tlhamo ya O1-X-O2. Didiriswa tsa kgobaketso ya boitsebiso e bile 5-point Likert Type Scale Questionnaire (ye tee ya barutisi, ye tee ya barutwana), moleko wa pele le moleko wa morago wa geometry ya motheo, le poledisano yeo e gatisitswego ya tlhamego ya sewelo (semi-structured) ya barutwana bao ba kgethilwego ga mmogo le barutisi ka moka ba supa. Thekgo e ile ya phethagatswa/fiwa magareng ga moleko wa pele le moleko wa morago moo monyakisisi a rutilego tlotlontsu ya geometry go batseakarolo. Boitsebiso bja bontsi (quantitative data) bo sekasekilwe ka go somisa ditafola, ditshate, le teko e bonolo mola ditshekatsheko tsa boleng (qualitative analysis) di akareditse go ngwalolla dipoledisano tseo di thulagantswego, tsa hlophiwa le go beakanywa ka sehlogo. Thuto ye e itullotse gore ditlotlontsu tsa geometry ga se tsa rutwa ebile mekgwana yeo e somisitswego ya setlwaedi go ruta geometry ebile go thala dibopego tsa 2-D le mehlala ya didiriswa tsa 3-D letlapeng. Dintlha tsa moleko wa pele le moleko wa bobedi di sekasekilwe ka go somisa mokgwa wa go phera moleko wa t (t-test). Dipoelo di supeditse gore thekgo yeo e filwego e bile le khuetso ye botse. Dipoelo tsa bontsi le boleng di netefaditse gore go ruta tlotlontsu ya geometry go kaonafatsa mabokgoni a barutwana dithutong tsa geometry. Nyakisiso ye e tsweleditse lenaneothuto la go dira diteko go ruteng didiritswa tsa 3-D le papetlatshomelo ya tlotlontsu ya geometry gape le go kgothaletsa mpshafatso ya lenaneo-thuto go tsenyeletsa thuto ya tlotlontsu ya geometry ka gare ga lenaneo-thuto gammogo le lelokelelo la tlotlontsu ya geometry ya barutwana go dihlopha tsa mengwageng ka moka. Se e tla ba e le tlaleletso ya tsebo go thuto ya dipalo. Thuto ye e kgothaletsa dinyakisiso tsa go ya pele go nyakolla mafelelo a go ruta tlotlontsu ya geometry go tiro ya, goba dipoelo tsa, barutwana go thuto ya geometry go dihlopha tsa mengwaga ka moka tsa sekolo sa tlase. / Mathematics Education / Ph. D. (Mathematics Education)
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Formes et acteurs du changement territorial dans les périphéries du monde : dynamiques urbaines et mutations rurales en Bolivie / Shapes and players of territorial change in the satellites territories of global world : urban dynamics and rural changing in BoliviaArreghini, Louis 23 March 2011 (has links)
Dans un monde globalisé, les territoires de la périphérie du monde entrent dans un processus de changement continuel sous les contraintes de multiples acteurs, transnationaux, étatiques et locaux. Cette thèse s’est fixée comme objectif de révéler la spatialité de ces changements ainsi que les jeux d’acteurs qui y contribuent dans le cas de la Bolivie. Les hypothèses, qui postulent un irréversible processus d’autonomisation des territoires, ont résisté à l’épreuve des faits : les bouleversements politiques et sociaux intervenus pendant la période de la réalisation de ce projet. La thèse présente d’abord un positionnement épistémologique qui propose d’articuler l’espace et ses acteurs dans une perspective modélisatrice. Elle expose ensuite un cadre systémique de mise en cohérence des éléments de structuration et de changement territorial qui place, au centre, un système idéel construit à partir des signaux échangés par les acteurs afin de maîtriser ce changement territorial : signaux de domination, de pression ou de séduction engendrant des relations d’exploitation, de conflits ou de coopération. Ce système idéel est relié à des sous-systèmes matérialisés (organisation politico-administrative, système de villes et espaces de l’économie) qui subissent l’impact des changements étudiés. En effet, les politiques territoriales sont les rétroactions d’un tel système. Le traitement de chaque sous-système matérialisé correspond à un changement d’échelle géographique. Les modèles spatiaux à base de chronochorèmes complètent l’étude dynamique du changement. Ces choix méthodologiques permettent une lecture géographique des résultats suivants : - L'efficacité des mouvements sociaux réside moins dans la matrice sectorielle et professionnelle que dans leur assise territoriale .-L'État concentre ses réformes sur le sous-système matérialisé de l'organisation politico-administrative car il semble n'avoir prise ni sur le système des villes, ni sur les espaces et territoires de l'économie. Il n'est jamais parvenu jusqu'à présent à un accord qui lui aurait permis d'équilibrer dépenses sociales et investissements productifs. Un consensus social devra également être trouvé pour rendre viable un État plurinational. L'État concentre sur lui la majorité des signaux et établit ses politiques territoriales en fonction de leur pression. - La toute puissance technologique et financière des acteurs transnationaux se heurtent à l’efficacité des mouvements sociaux. Toutefois, ces acteurs restent à terme des pièces importantes d’un jeu où , pourvoyeurs d’activité et d’emplois, ils continueront à produire de l’espace et à consommer des territoires / In a globalized world, satellite territories undergo continual change process constrained by multiple, transnational, public and local actors. This thesis aims to reveal the spatiality of these changes as well as the sets of actors who contributed to it in Bolivia. The assumptions, which assume an irreversible process of empowering territories, have withstood the proof of facts : political and social upheavals occurred during the period of the realization of this project. The thesis starts with epistemological considerations which propose to articulate space and its actors in a modeling approach. Then the thesis presents a systemic conceptual framework providing coherence within territorial structuration and changes which focus on a system built from the signals exchanged by the actors to control this territorial change : signals of domination, pressure or seduction, generating relation of exploitation, adversarial or cooperation. This conceptual system is connected to effective subsystems (politico-administrative organization, system of cities and territories of the economy) which undergo the impact of the studied changes. Indeed, territorial policies are the results of the feedbacks of such a system. Dealing with each effective subsystem needs to focus on different geographical scales. The spatial models containing chronochorèmes supplement the dynamic study of the change. This methodological approach allows a geographical reading of the following results : - Social movements’ efficiency is better explained by its territorial origin than the sectoral and professional matrix. - The government focuses its reforms on the politico-administrative sub-system because it seems not to have stranglehold either on the system of cities, or on economics territories. Until now, it never managed to achieve an agreement which would have enabled to balance welfare expenditures and productive investments. A social consensus will have also to be found to make viable a multinational nation. The nation concentrates the majority of the signals and establishes its territorial policies according to their pressure. - The technological and financial all-power of the transnational actors face up to the effectiveness of social movements. However, these actors remain in the long term important providers of activity and employment and will continue to produce space and to consume territories
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Ultrashort laser pulse shaping for novel light fields and experimental biophysicsRudhall, Andrew Peter January 2013 (has links)
Broadband spectral content is required to support ultrashort pulses. However this broadband content is subject to dispersion and hence the pulse duration of corresponding ultrashort pulses may be stretched accordingly. I used a commercially-available adaptive ultrashort pulse shaper featuring multiphoton intrapulse interference phase scan technology to characterise and compensate for the dispersion of the optical system in situ and conducted experimental and theoretical studies in various inter-linked topics relating to the light-matter interaction. Firstly, I examined the role of broadband ultrashort pulses in novel light-matter interacting systems involving optically co-trapped particle systems in which inter-particle light scattering occurs between optically-bound particles. Secondly, I delivered dispersion-compensated broadband ultrashort pulses in a dispersive microscope system to investigate the role of pulse duration in a biological light-matter interaction involving laser-induced cell membrane permeabilisation through linear and nonlinear optical absorption. Finally, I examined some of the propagation characteristics of broadband ultrashort pulse propagation using a computer-controlled spatial light modulator. The propagation characteristics of ultrashort pulses is of paramount importance for defining the light-matter interaction in systems. The ability to control ultrashort pulse propagation by using adaptive dispersion compensation enables chirp-free ultrashort pulses to be used in experiments requiring the shortest possible pulses for a specified spectral bandwidth. Ultrashort pulsed beams may be configured to provide high peak intensities over long propagation lengths, for example, using novel beam shapes such as Bessel-type beams, which has applications in biological light-matter interactions including phototransfection based on laser-induced cell membrane permeabilisation. The need for precise positioning of the beam focus on the cell membrane becomes less strenuous by virtue of the spatial properties of the Bessel beam. Dispersion compensation can be used to control the temporal properties of ultrashort pulses thus permitting, for example, a high peak intensity to be maintained along the length of a Bessel beam, thereby reducing the pulse energy required to permeabilise the cell membrane and potentially reduce damage therein.
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Linear Dynamic System Analyses with Creo Simulate – Theory & Application Examples, Capabilities, Limitations – / Lineare dynamische Systemanalysen mit Creo Simulate – Theorie & Anwendungsbeispiele, Programmfähigkeiten und Grenzen –Jakel, Roland 07 June 2017 (has links) (PDF)
1. Einführung in die Theorie dynamischer Analysen mit Creo Simulate
2. Modalanalysen (Standard und mit Vorspannung)
3. Dynamische Analysen einschließlich Klassifizierung der Analysen; einige einfache Beispiele für eigene Studien (eine Welle unter Unwuchtanregung und ein Ein-Massen-Schwinger) sowie etliche Beispiele größerer dynamischer Systemmodelle aus unterschiedlichsten Anwendungsbereichen
4. Feedback an den Softwareentwickler PTC (Verbesserungsvorschläge und Softwarefehler)
5. Referenzen / 1. Introduction to dynamic analysis theory in Creo Simulate
2. Modal analysis (standard and with prestress)
3. Dynamic analysis, including analysis classification, some simple examples for own self-studies (shaft under unbalance excitation and a one-mass-oscillator) and several real-world examples of bigger dynamic systems
4. Feedback to the software developer PTC (enhancement requests and code issues)
5. References
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