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1
Lemonnier, Pascal. "Étude d'une architecture VLSI pour un algorithme d'estimation de mouvement bloc-récursif." Rennes 1, 1996. http://www.theses.fr/1996REN10061.
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Les algorithmes d'estimation de mouvement appartenant a la famille des methodes region-recursives constituent une alternative algorithmique aux techniques classiques par mise en correspondance de blocs, couramment employees dans les schemas de codage avec compensation de mouvement. L'algorithme considere, concu dans le projet temis a l'irisa, consiste en trois etapes: estimation, relaxation deterministe et decoupage en quadtree qui sont realisees de maniere iterative jusqu'a convergence. L'objet de cette these est l'etude d'une architecture specialisee realisant efficacement l'algorithme d'estimation de mouvement bloc-recursif, les regions sont ici des blocs de taille identique. L'etude traite a la fois des aspects algorithmiques, definition et identification des parametres de l'algorithme a implanter, et des aspects architecturaux visant a specifier l'architecture. La conception de cette architecture specialisee, a partir d'un algorithme concu dans un contexte sequentiel, a necessite de suivre une demarche de conception en quatre etapes: analyse, simulation, parallelisation et mise en uvre. L'analyse algorithmique a permis d'identifier le parallelisme intrinseque de l'algorithme et d'en recenser ses parametres. Leur influence, tant sur le plan de la qualite de l'estimation que des contraintes induites sur la mise en uvre, a ete mesuree a l'aide de simulations. Une architecture de base a ete definie a partir du parallelisme intrinseque de l'algorithme. Celle-ci consiste en un reseau lineaire de modules eux-memes constitues d'un reseau lineaire de cellules de calcul (pec) operant au niveau des pixels et d'un processeur (per) pour les calculs de haut-niveau sur l'ensemble du bloc. Les problemes souleves par cette architecture de base tels que l'acces aux donnees ou la gestion des entrees/sorties ont ete resolus a l'aide de mecanismes specifiques reutilisables dans d'autres applications. Enfin, la derniere etape de l'etude a consiste a specifier l'aarchitecture interne de chaque processeur (pec et per) des modules ainsi que leur programmation
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Lima, Léocarlos. "Architecture de décodage pour codes algébriques-géométriques basés sur des courbes d'Hermite." Paris, ENST, 2004. http://www.theses.fr/2004ENST0039.
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Cette thèse consiste en une description d'une architecture efficace pour un algorithme de décodage de codes algébriques-géométriques (AG) basés sur des courbes d'Hermite. Ce travail embrasse deux compétences complémentaires distinctes : l'étude des algorithmesde décodage pour des codes AG et le développement d'architectures pour l'implantation matérielle de ces décodeurs. L'algorithme objet de ce travail recherche itérativement les fonctions localisatrices et évaluatrices d'erreurs qui satisfont un critère d'équation clé. Une nouvelle architecture pour ce décodeur est proposée. Des opérateurs optimisés pour les calculs es plus fréquents dans le décodeur sont encore décrits. La description de l'architecture de ce décodeur suit la description des architectures pour les unités arithmétiques sur descorps finis de caractéristique 2, nécessaires à l'implantation de n'importe quel système de codage / décodage de canal en utilisant des codes de blocThis thesis consists on a description of an efficient architecture for a decoding algorithm of algebraic-geometric codes (AG codes) based on Hermitian curves. This work embraces two distinct complementing competences : the study of decoding algorithms for AG codes and the development of architectures for hardware implementation of these decoders. The algorithm, object of this work, searches error locator and evaluator functions iteratively that satisfy a key equation criterion. A new architecture is proposed for this decoder. Optimized operators to implement the most frequent calculations in the decoder are still proposed. The description of the architecture of this decoder follows the description of architectures for arithmetical units in finite fields of characteristic 2, necessary to implemente any channel coding / decoding system using block codes
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Braschi, Cécilia. "Espaces construits : abstraction et synthèse des arts au Brésil, autour des revues d'André Bloc (1930-1960)." Thesis, Paris 1, 2019. http://www.theses.fr/2019PA01H036.
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Cette thèse étudie les revues d’art et d’architecture en tant que lieux de construction discursive et instruments privilégiés de circulation transnationale. Elle prend comme cas d’étude les relations entre les scènes française et brésilienne dans la période 1930-1960, portant une attention particulière aux transformations qui suivent la fin de la Seconde Guerre mondiale, à la fois dans la production artistique et critique, dans la représentation réciproque des deux contextes culturels et dans la négociation de leur place dans le nouvel ordre géopolitique. Largement diffusées en Amérique du Sud, les revues fondées par André Bloc sont étroitement liées à son action militante en faveur de la synthèse des arts et de l’abstraction géométrique. Perçues en France, en époque de reconstruction, comme les moteurs d’un grand renouveau humaniste et universaliste, abstraction et synthèse des arts sont aussi au cœur des revues brésiliennes nées au début des années 1950, vouées à définir les qualités d’un art national authentique et moderne. Au gré des divers enjeux qui animent les deux scènes culturelles, une perspective décentrée et postoccidentaliste permet de mettre en lumière les acceptions différentes que le même vocabulaire théorique recouvre en Europe et en Amérique latine, contribuant à l’élaboration de récits de l’art et de l’architecture brésiliens divergents mais interdépendants. Espaces « construits », les revues se font ainsi le miroir de nouvelles cartographies, susceptibles de repenser les relations centre(s)-périphérie(s), là où les différents discours sur l’art et l’architecture préfigurent autant de modèles esthétiques, sociaux et politiquesThis dissertation investigates art and architecture journals as spaces of discursive construction and as privileged instruments of transnational circulation. Its focus are the relations between the Brazilian and French scenes from 1930 to 1960, with particular emphasis on the transformations undergone after the end of the Second World War, both in artistic and critical production, in the reciprocal representation of two different cultural contexts and in the negotiation of their places within the new geopolitical order. Widely distributed in South America, André Bloc’s journals are closely linked to his militancy in favour of the synthesis of the arts and of geometric abstraction. During post-war reconstruction in France, abstraction and synthesis of the arts are perceived as the driving forces of a great humanist and universalist renewal, and they are simultaneously at the core of the Brazilian journals launched in the early 1950s, which were engaged in defining the qualities of an authentic and modern national art. Following the various stakes at play in these two cultural scenes, a decentralized and post-Occidentalist perspective brings to light the different meanings attributed in Europe and in Latin America to the same theoretical vocabulary, contributing to the formulation of diverse but mutually dependent narratives concerning Brazilian art and architecture. As “constructed” spaces, the journals mirror new cartographies which furnish the basis for rethinking the relations between centre(s) and periphery(ies), while different discourses about art and architecture prefigure as many aesthetic, social and political models
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Сафін, Іван Рудольфович. "Створення статистичних сторінок моніторингу бібліометричних даних." Bachelor's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/44152.
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Мета роботи – створення застосунку, який являє собою систему моніторингу та пошуку бібліометричних даних. Для реалізації інтерфейсу була використана мова програмування Dart та технологія побудови UI «Flutter». Тестові дані були взяті з бібліометричної бази даних під назвою “Arxiv”. Для отримання даних у форматі метаданих від бази за допомогою REST API використовуються HTTP-запитиThe purpose of the work is to create an application that is a system for monitoring and retrieving bibliometric data. Dart programming language and UI "Flutter" construction technology were used to implement the interface. The test data were taken from a bibliometric database called "Arxiv". HTTP requests are used to obtain metadata data from the database using the REST API.
Цель работы - создать приложение, представляющее собой систему мониторинга и получения библиометрических данных. Для реализации интерфейса использовались язык программирования Dart и технология построения UI "Flutter". Данные теста были взяты из библиометрической базы данных под названием «Arxiv». HTTP-запросы используются для получения данных метаданных из базы данных с помощью REST API.
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Backert, Nicolas. "Interaction tectonique-sédimentation dans le rift de Corinthe, Grèce. Architecture stratigraphique et sédimentologie du Gilbert-delta de Kerinitis." Phd thesis, Institut National Polytechnique de Lorraine - INPL, 2009. http://tel.archives-ouvertes.fr/tel-00457060.
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La stratigraphie synrift du bloc de faille est divisée en trois groupes stratigraphiques, représentant une épaisseur de 1624 m. Le Groupe inférieur est composé de sédiments fluvio-lacustres, le Groupe moyen comporte les Gilbert-deltas géants et leurs faciès fins associés, le Groupe supérieur est formé de Gilbert-deltas récents à actuels ainsi que de formations superficielles. La discordance basale de l'Unité du prérift présente une paléotopographie. La phase d'extension précoce (Groupe inférieur) est caractérisée par une très faible subsidence assurée par l'activité précoce de la faille de Pirgaki et des failles mineures. La transition avec la phase d'extension principale (Groupe moyen) est marquée par un approfondissement du bassin ainsi que par une augmentation du taux de subsidence. La phase d'abandon et de soulèvement du bloc (Groupe supérieur) est caractérisée par des évènements de creusement-comblement. Le Gilbert-delta géant de Kerinitis se serait déposé dans la période Pléistocène inférieur-Pléistocène moyen, en milieu marin. L'étude de la sédimentologie de faciès a permis de mettre en évidence quatre associations de faciès : topset, foreset, bottomset, prodelta. L'architecture stratigraphique est composée de onze Unités Stratigraphiques (SU) séparées par onze Surfaces Stratigraphiques (KSS). Dans un contexte de création continue d'espace d'accommodation, les SU se déposent pendant les maxima et les périodes de chute du niveau marin. Les KSS se mettent en place pendant des périodes d'augmentation du niveau marin. Les quatres étapes de construction du Gilbert-delta de Kerinitis ont enregistré le début, le maximum et l'arrêt de l'activité du système de failles.
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Zmily, Ahmad Darweesh. "Block-aware instruction set architecture /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Kamell, Elizabeth N. (Elizabeth Natanya). "Building, block, street : residential block design." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/43285.
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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1996.Includes bibliographical references (leaves 75-76).
Late twentieth-century housing, formed by economic and internally generated functional problems rather than by limitations imposed by traditional street pattern and block size, is fundamentally anti-urban. Modern American housing of the post-World War II era, like any complex social phenomenon, was influenced by multiple forces. Among the most salient are single proprietary control of large parcels of urban land and pre-World War II stylistic trends / social ideals, both of which were reinforced by revisions to zoning regulations. The traditional relationship of the individual dwelling to the block and the street (as well as the individual to the community, as represented by a parallel, formal urban organization) is altered as a result of a changed urban housing configuration. Although the urban characteristics of traditional eighteenth- and nineteenth-century housing blocks remain viable, the dwellings of which they were composed were products of an economic and social structure whose housing requirements are no longer appropriate in contemporary culture. Modem housing, not limited by normative street and block configuration fulfills some of the economic and programmatic requirements of contemporary society, but because it is inherently anti-urban its presence is ultimately destructive of civic life. Analysis of traditional residential urban blocks in terms of quantifiable urban characteristics provides a tool with which to measure and generate programatically modern housing determined by traditional urban constraints.
by Elizabeth N. Kamell.
M.S.
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Shylichava, Lizaveta. "Everyday Urban Architecture : Urban blocks, building typology, architectural elements; reading into the urban form of Stockholm." Thesis, KTH, Urbana och regionala studier, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296221.
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With the growing role of cities, rapid urbanization, transformation under shifting economic, environmental, social and demographic conditions, the purpose of architecture is changing too. The legacy of the modernist decades left a broken urban fabric of isolated buildings from the urban landscapes of streets, plots, and blocks. In its aftermath, professionals sought to revive the traditional city fabric starting from the block, as the basic element. Although recent developments produce blocks, the livability of streets and other public spaces remains questionable. With a newfound focus into the block, as the fundamental structural element in planning, architectural typologies become the starting point to translate the qualities of urban life. The relationship between two scales, the urban and the architectural, will be examined in this thesis. Architectural elements and typologies have the ability to enhance public life, fostering positive social relations through meaningful design. The following research will explore architecture in Stockholm from the scale of an urban block, to the building typologies, and finally to the modest details within a single building. The fundamental idea is to extract building types and architectural elements that have an impact on the daily life of individuals in the city of Stockholm.
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Ding, Ke. "Architectures of DNA block copolymers." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=98214217X.
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Cai, Wenxin M. Arch Massachusetts Institute of Technology. "Collective urban block." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/121694.
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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Thesis: M. Arch., Massachusetts Institute of Technology, Department of Architecture, 2019
"February 2019." Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (page 92).
Since the economic reform in 1978, urban planning in China has shifted from spatial manifestation of economic planning to projective planning. This rapid mode of policy-driven urbanization has instrumentalized infrastructural development using the master plan as tools to promote urbanization for economic growth. The transformation of Beijing has epitomized how the master plan has replaced urban block as a spatial tool for the making of the city. The result of this practice is Le Corbusier's radiant city in a dystopian state: parallel blocks of residential towers enclosed in gated communities that are detached from the city. Currently, Beijing has a migrant population of 8 million, who called themselves "Bei Piao", literally translated as "floating in Beijing". The exclusive policy to cap population and exorbitant housing price further exclude migrants to live in the city. As Beijing continued to expand with the construction of new infrastructure, I will argue that development of infrastructure will not solve the problems of the city and make it more inclusive. Through the reading of the historical context of Beijing, the idea of collectivity is manifested, seen through historical urban forms of courtyard house and Hutong (alley). This thesis uses the vocabulary of historical neighborhood of Beijing, and investigates how collectivity can be formed through relational aspects of elements of architecture, such as courtyard, alley, window, balcony and terrace. This project intends to use key elements of architecture from the contextual reading to make a neighborhood of collective living in central Beijing. Rather than proposing a solution to reverse socio-spatial exclusiveness, the project intends to set up a framework, and imagine how it can be appropriated by future residents.
by Wenxin Cai.
M. Arch.
M.Arch. Massachusetts Institute of Technology, Department of Architecture
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Kivilinna, J. (Jussi). "Block Ciphers:fast Implementations on x86-64 Architecture." Master's thesis, University of Oulu, 2013. http://urn.fi/URN:NBN:fi:oulu-201305311409.
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Encryption is being used more than ever before. It is used to prevent eavesdropping on our communications over cell phone calls and Internet, securing network connections, making e-commerce and e-banking possible and generally hiding information from unwanted eyes. The performance of encryption functions is therefore important as slow working implementation increases costs. At server side faster implementation can reduce the required capacity and on client side it can lower the power usage. Block ciphers are a class of encryption functions that are typically used to encrypt large bulk data, and thus make them a subject of many studies when endeavoring greater performance. The x86-64 architecture is the most dominant processor architecture in server and desktop computers; it has numerous different instruction set extensions, which make the architecture a target of constant new research on fast software implementations. The examined block ciphers — Blowfish, AES, Camellia, Serpent and Twofish — are widely used in various applications and their different designs make them interesting objects of investigation.
Several optimization techniques to speed up implementations have been reported in previous research; such as the use of table look-ups, bit-slicing, byte-slicing and the utilization of “out-of-order” scheduling capabilities. We examine these different techniques and utilize them to construct new implementations of the selected block ciphers. Focus with these new implementations is in modes of operation which allow multiple blocks to be processed in parallel; such as the counter mode. The performance measurements of new implementations were carried out by using the System for Unified Performance Evaluation Related to Cryptographic Operations and Primitives (SUPERCOP) framework on four different processors: AMD K8, AMD K10, Intel Core2 and Intel Sandy-Bridge.
The parallel processing permitted by particular modes of operation can improve performance of a block cipher even with traditional table look-up optimization. Bit-slicing, byte-slicing and word-slicing can be used to parallelize block cipher processing in vector registers. These ‘sliced’ techniques can improve the throughput of block cipher implementations significantly compared to table look-up based approaches. Our byte-sliced AES-NI/AVX implementation of Camellia reaches the speed of 5.32 cycles per byte on Intel Sandy-Bridge processor, being 2.65 times faster than our two-way table look-up implementation and 3.96 times faster than the implementation found in the OpenSSL library.
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Urger, Mucip Ahmet. "Apartment Block As The Object Of The Generic City:ankara." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605548/index.pdf.
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Ankara has experienced a radical transformation after 1950s, in which the identity of the highly planned capital has been erased, emphasizing homogenization, blankness and similarity. The Apartment Block was the object of this condition and the subject of the transformation in the urban identity, both with its physical existence and with the mind-set it has radiated to the whole levels of the society. It has stripped out the identity of the city with its "endless reproduction."
This transformation has led the Apartment Block to be accused of transforming Turkish cities to deformed agglomerations, deprived of aesthetics. In this sense, architectural discipline has been criticized for its impotence to respond the economical, social and cultural conditions that traverse the urban setting. This criticism has questioned the generative role of architecture in the Early Republican period as a social engineering and discouraged any relation between architecture and the city, which has manifested the reduction of the architecture to a formal discipline. Ankara, with its dazzling transformation within few decades proposed its own urbanism and its own architecture, with the mutation of the Apartment Block first to a resilient frame than to a multi-programmed infrastructure. This study will consider this transformation as &
#8216
another&
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manifestation of a new kind of urbanism that was mainly declared by Rem Koolhaas and OMA, claming that the resilient and neutral objects are the dominant and extensive forms of the contemporary urbanism. Hence, the study presents a cross reading of the urban development of Ankara together with Rem Koolhaas&
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book Delirious New York and his essay The Generic City in SMLXL. The utmost goal is to explore a possible "
reciprocal relation"
between architecture and the city and to explore the limits of architectural intervention in the particular case of Ankara. Such an objective inevitably requires extending the limits of architectural thinking to the city scale. Thus, Ankara goes beyond a case study in an inquiry that aims to undertand the mechanisms of the building production in the contemporary urbanism.
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Bagheri, Hamid. "Prestressed hybrids of AAC and HPC : The BCE (Block Composed Element) building system. A conceptual study." Licentiate thesis, KTH, Architecture, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4598.
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There is an important potential for a development of a building system, if the present AACblock plants are completed with high performance concrete and pre-stressing technique. This can be done as a continuation of a present AAC production or in a site factory.
Hybrid cooperation between AAC and concrete is not a new technology. Traditionally, AAC is covered with rendering. The wetted material is first sprayed with cement slurry after which comes lime/cement-based rendering which strengthens the wall and supplies a mechanical protection. AAC blocks can be used as infill members in concrete deck plates and concrete framed walls (Hellers, 1993), in which the shrinkage of the surrounding concrete locks completely the cured blocks into a stable composite.
A good cooperation between AAC and concrete is a requirement for the pre-stressed hybrid. This combination has been investigated with reference to bond and moisture content. The interface must have sufficient bond to supply shear strength to the structural member. Also, the concrete should be suitable for pre-stressing which requires a minimum strength class K40. Here, K60 is applied in order to reduce creep and avoid creep failure of the AAC. A production layout for the purpose is suggested.
This research consists of three parts:
1- Hybrid concrete elements The principal formulation of hybrids, built on cooperation between two concrete materials, a weak AAC and a strong HPC poured on top, shows that this combination unites the most favourable qualities of the two concretes into a structural element with rational building technology.
Load-bearing capacity is good, and the fire protection is excellent. Through pre-stressing of the structural concrete, a crack-free behaviour is guaranteed up to the service limit, and deflection from dead weight (incl. floor covering and possibly half the service load) be eliminated. The most important structural elements needed in a building system could be taken as hybrids. In drawings, different members like floor- roof- and wall members, window and door lintels are shown.
2- Production system for hybrids AAC blocks form a bed containing the pre-stressing steel in slits and on which high performance concrete is poured. Pre-stressing brings the two concretes together. This is especially important for the shear capacity of a building member, by which extra dowels can be omitted. The pre-stressing force is anchored by plates directly against the cured AAC blocks. A special pre-stressing bed is not required. The production is arranged in such a way that necessary equipment (trays, form strips, wedges, locks) are circulated within twenty-four hours. The necessary manpower for this facility is analysed. Normally 8 men are needed per shift.
A detailed conceptual production layout for a hybrid production plant is included for discussion. See figure 6.2 (suggested production layout).
3- Application in building The hybrid members are united at joints and through seams. Continuity over connections is achieved by filling seams with mortar grout. Reinforcement may be included to achieve ductility. By a similar method, it is possible to make connections between horizontal and vertical building members. Common connection details are shown in the report. This building method replaces the equivalent method with concrete or AAC members, and it is in fact a coordination between these two.
The maximum span of floor members is up to 9 m. It makes the system suitable for modern residential house production, but also suitable for office buildings, industrial halls and other applications. See attached drawings, part 2 and part 3.
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Siddique, Nafiul Alam. "Spare Block Cache Architecture to Enable Low-Voltage Operation." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/216.
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Power consumption is a major concern for modern processors. Voltage scaling is one of the most effective mechanisms to reduce power consumption. However, voltage scaling is limited by large memory structures, such as caches, where many cells can fail at low voltage operation. As a result, voltage scaling is limited by a minimum voltage (Vccmin), below which the processor may not operate reliably. Researchers have proposed architectural mechanisms, error detection and correction techniques, and circuit solutions to allow the cache to operate reliably at low voltages. Architectural solutions reduce cache capacity at low voltages at the expense of logic complexity. Circuit solutions change the SRAM cell organization and have the disadvantage of reducing the cache capacity (for the same area) even when the system runs at a high voltage. Error detection and correction mechanisms use Error Correction Codes (ECC) codes to keep the cache operation reliable at low voltage, but have the disadvantage of increasing cache access time. In this thesis, we propose a novel architectural technique that uses spare cache blocks to back up a set-associative cache at low voltage. In our mechanism, we perform memory tests at low voltage to detect errors in all cache lines and tag them as faulty or fault-free. We have designed shifter and adder circuits for our architecture, and evaluated our design using the SimpleScalar simulator. We constructed a fault model for our design to find the cache set failure probability at low voltage. Our evaluation shows that, at 485mV, our designed cache operates with an equivalent bit failure probability to a conventional cache operating at 782mV. We have compared instructions per cycle (IPC), miss rates, and cache accesses of our design with a conventional cache operating at nominal voltage. We have also compared our cache performance with a cache using the previously proposed Bit-Fix mechanism. Our result show that our designed spare cache mechanism is 15% more area efficient compared to Bit-Fix. Our proposed approach provides a significant improvement in power and EPI (energy per instruction) over a conventional cache and Bit-Fix, at the expense of having lower performance at high voltage.
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Chi, Hsiang. "Flash memory boot block architecture for safe firmware updates." FIU Digital Commons, 1995. http://digitalcommons.fiu.edu/etd/2160.
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The most significant risk of updating embedded system code is the possible loss of system firmware during the update process. If the firmware is lost, the system will cease to operate, which can be very costly to the end user. This thesis is concerned with exploring alternate architectures which exploit the integration of flash memory technology in order to overcome this problem. Three design models and associated software techniques will be presented. These design models are described in detail in terms of the strategies they employ in order to prevent system lockup and the loss of firmware. The most important objective, which is addressed in the third model, is to ensure that the system can continue to process interrupts during the update. In addition, a portion of this research was aimed at providing the capability to perform updates remotely, and at maximizing system code memory space and available system RAM.
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Turner, Simon C. "Architectural effects of block copolymer phase behaviour." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340142.
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Haynes, Simon Dominic. "Reconfigurable architectures for video image processing." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322797.
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Wuttig, Mark Oliver. "Future perfect : reintegrating housing and production in the Berlin Block/." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/63058.
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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2011.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 142-145).
The beginning of the 21st century has been marked by an apparently ubiquitous state of crisis, which transcends national boundaries and is reshaping global relationships. Financial meltdowns, the lack of affordable housing, the decline of manufacturing, resource scarcity and global warming - we seem to be immersed in a state of constant emergency, which offers opportunity for design. Architecture has the ability to play a critical role in the reimagination of an alternate future explored through the discourse of Utopia. Investigating mixed-use strategies of both, the past and present, this thesis proposes a new block typology that intrinsically links the production of goods with issues of resource scarcity and the need for affordable housing as a counter-proposition to the planned Media-Spree Development in Berlin. Reconsidering the history of the urban block in relation to the rise and fall of industrial manufacturing in Kreuzberg, Berlin the project excavates parts of its archaic typologies as a possible way to move forward in the future.
by Mark Oliver Wuttig.
M.Arch.
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Treadway, Joshua Holden. "The Civic Life of the City Block." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78248.
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Town planning and political interaction of citizens are the main factors that affect civilizations on the most basic level. My study comes from an understanding of a need for a society to develop politically active citizens that are ascetic in nature, less they wish for a more despotic government. This study makes an attempt at understanding the basic elements that make civic structure of a city at the scale of a block. These elements are broken down into: Site, Boundary, Axis, Residence, Commerce, and Civic. The major focus being on Civic and the engagement of making a virtuous citizen through the study of the self and the formal decisions that make the Architecture. Civic structure comes after the forming of the city and its managerial needs, so before civic can reside within a city other formal decisions must be made to create structure for the greater need of the civilization. I will attempt to layout the structure needed and my projection of this structure and the preceding Civic Life that comes from this architectural study.Master of Architecture
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Burešová, Karolína. "Stavba - prostor - město Dostavba městského bloku." Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2019. http://www.nusl.cz/ntk/nusl-400675.
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Based on a regulatory plan, I chose a plot of the city corner for my diploma thesis, which is an introduction to Francouzská Street. At present, this plot is used only as a parking lot, but it is located in an interesting busy place in the mouth of the five roads. Based on the new regulatory plan, the plot is located on the dominant site of the city piazzetta with a function full of people and commercial partners. My goal is to create a significant city corner, which will be a local dominant of the nearby area. The filling of the house is commercial, administrative, and residential. The proposal will allow fluctuations in the ratio between these functions due to the variability of market demand. With the statue of a staircase, I want to create a communication space for the residents of the house, where PROMENADE will be created and at the same time will serve as an interesting backdrop for the parterre.
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Silver, Jay (Jay Saul). "Lens x block : World as construction kit." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/95590.
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Thesis: Ph. D., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2014.Cataloged from PDF version of thesis. Vita.
Purpose and meaning of the physical world can be re-assigned and re-made by individuals as they go rather than being pre-fixed by people who came before them. But this mindset is more rare than it should be if we want an empowered population full of creative powerful beings. So can we make special tools that by design help people to put into practice the mindset and actionable behavior that: The World is a Construction Kit? We can, and in fact people have already done so with some existing tools which I will present. Then, I will present several new digital construction kits with a focus on two, Drawdio and Makey Makey, that are designed to focus attention on the world as the construction kit. Rather than combining kit-parts that come in a box, participants take pieces of the world they live in and re-purpose and re-combine these everyday objects from their life. I formalize this type of construction kit, explaining how it takes the constructive aspect of a traditional wooden block, and the world-transforming multiplicative aspect of the traditional looking glass lens, to make a block-and-lens-in-one, which I call a Constructive Lens. I consider traditional construction kits like LEGO, or kits that aren't necessarily thought of as "construction kits" per se, like Painting Kits: Brush/Paint/Canvas, and show how to transform these traditional construction kits, which offer their own pre-fixed components, to the realm where the world, that is the everyday objects in one's life, is instead acting as the components of the kit. The ultimate goal of the thesis is to show how we can we make tools and activities, "Constructive Lenses," that, by design, catalyze: re-seeing (lens) the everyday world as something we can re-make (block) The thesis approaches this goal through a rich narrative with thick description of design studies and case studies, intended to experientially model the process of motivating, making, and deploying Constructive Lenses to hundreds of thousands of people.
by Jay Silver.
Ph. D.
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Chandrakar, Shant. "Memory Architecture Template for Fast Block Matching Algorithms on Field Programmable Gate Arrays." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/495.
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Fast Block Matching (FBM) algorithms for video compression are well suited for acceleration using parallel data-path architectures on Field Programmable Gate Arrays (FPGAs). However, designing an efficient on-chip memory subsystem to provide the required throughput to this parallel data-path architecture is a complex problem. This thesis presents a memory architecture template that can be parameterized for a given FBM algorithm, number of parallel Processing Elements (PEs), and block size. The template can be parameterized with well known exploration techniques to design efficient on-chip memory subsystems. The memory subsystems are derived for two existing FBM algorithms and are implemented on a Xilinx Virtex 4 family of FPGAs. Results show that the derived memory subsystem in the best case supports up to 27 more parallel PEs than the three existing subsystems and processes integer pixels in a 1080p video sequence up to a rate of 73 frames per second. The speculative execution of an FBM algorithm for the same number of PEs increases the number of frames processed per second by 49%.
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Ruzette, Anne-Valérie G. (Anne-Valérie Geneviève). "Molecular design of ordering transitions in block copolymers." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/55062.
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Thesis (Ph.D.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2000.Vita.
Includes bibliographical references (p. 201-216).
The tendency of block copolymers (BCP's) to microphase separate at the molecular level, producing a wide array of ordered nanostructures, is of particular interest from an engineering standpoint due to the unique mechanical, optical or electrical properties that ensue. Upon considering the potential applications of these materials, however, one limitation arises from the lack of control over bulk thermodynamics and the appearance of order/disorder (solid-like/liquid-like) transitions in these materials. To address this problem, this thesis aims to, firstly, develop a more quantifiable understanding of the molecular factors governing BCP phase behavior, and, secondly, use that knowledge to molecularly engineer new BCP's with enhanced processibility. While most BCP's microphase separate upon cooling through an upper disorder-to-order transition (UDOT), polystyrene-block-poly n-butyl methacrylate, PS-b-PBMA, undergoes ordering upon heating through a lower disorder-to-order transition (LDOT). Preliminary studies on this material revealed a unique pressure sensitivity of this ordering transition. By applying pressure, this material could be forced into the segmentally mixed liquid state, implying "baroplasticity", a highly attractive property from a processing standpoint. To better understand the molecular origin of this behavior, the bulk thermodynamics of a family of BCPs formed from styrene and a homologous series of n-alkyl methacrylates (PS-b-PnAMA, n ranging from 1 to 12) was investigated, both as a function of pressure and temperature. The results of this study reveal an unexpected, though systematic, dependence of the phase behavior of these BCP's on monomer architecture. In short, over a certain range of alkyl side chain length, PS-b-PnAMA block copolymers are marginally compatible and exhibit unexpectedly large pressure coefficients for the ordering transition, ranging from 60 to 150°C/kbar. In an attempt to identify molecular parameters responsible for these thermodynamic trends, as well as those displayed by other systems reported in the literature, combined group contribution/lattice fluid model calculations of the cohesive properties of the corresponding homopolymers are performed. Based on this analysis, the homopolymer mass density is proposed as a macroscopic parameter that appears to govern phase behavior in weakly interacting block copolymers or polymer blends. Using this new criterion, a simple tool for the molecular design of phase behavior into weakly interacting BCP's is identified, which is successfully used to engineer "baroplastic" behavior into several new systems of commercial relevance, including elastomers and adhesives based on styrene and low Tg acrylates. In light of the improved understanding of BCP phase behavior emerging from these studies, a simple phenomenological free energy expression is proposed for compressible polymer mixtures, that can be extended to block copolymers. Its ability to predict qualitative phase diagrams for the systems investigated in this thesis as well as many other polymer pairs is demonstrated. Using this expression, basic principles regarding polymer thermodynamics are outlined.
by Anne-Valérie G. Ruzette.
Ph.D.
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Anderson, E. (Emett). "New Urbanism, the public realm in neighborhood planning in Liminka, Finland:the street, the block and the building." Master's thesis, University of Oulu, 2015. http://urn.fi/URN:NBN:fi:oulu-201505231626.
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This thesis is structured in two parts. The first part is an explanation of New Urbanism, its sister organizations in Europe, and their planning philosophies, followed by three examples of projects which embody the philosophy. The second part is a new design for a neighborhood core in Liminka, Northern Finland. The design follows the basic planning philosophies of the New Urbanist movement and intends to re-establish the pedestrian as the foremost consideration in urban planning.
Liminka has experienced a great deal of growth in the past 15 years and is beginning to suffer from suburban sprawl and is developing an auto-dependent population and was thus chosen as the location for the implementation of this design concept.
The design focuses on the three main physical elements of a neighborhood: the block, the street and the building, and uses definitions of these elements laid out by the New Urbanism to guide their design.
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Saito, Tomonori. "Synthesis and Characterization of Multiphase Block Copolymers: Influence of Functional Groups on Macromolecular Architecture." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/27440.
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Low molecular weight liquid polybutadienes (1000 â 2000 g/mol) consisting of 60 mol% 1,2-polybutadiene repeating units were synthesized via anionic telomerization and conventional anionic polymerization. Maintaining the initiation and reaction temperature less than 70 °C minimized chain transfer and enabled the telomerization to occur in a living fashion, which resulted in well-controlled molecular weights and narrow polydispersity indices. MALDI-TOF mass spectrometry confirmed that the liquid polybutadienes synthesized via anionic telomerization contained one benzyl end and one protonated end.
Subsequently, 2-ureido-4[1H]-pyrimidone (UPy) quadruple hydrogen-bonding was introduced to telechelic poly(ethylene-co-propylene), and mechanical characterization of the composites with UPy-functionalized carbon nanotubes was performed. The composites enhanced the mechanical properties and the UPy-UPy association between the matrix polymer and carbon nanotubes prevented the decrease of an elongation at break. The matrix polymer was also reinforced without sacrificing the processability. Additionally, UPy groups were introduced to styrene-butadiene rubbers (SBRs). Introducing UPy groups to SBRs drastically changed the physical properties of these materials. Specifically, the SCMHB networks served as mechanically effective crosslinks, which raised Tg and enhanced the mechanical performance of the SBRs.
Novel site-specific sulfonated graft copolymers, poly(methyl methacrylate)-g-(poly(sulfonic acid styrene)-b-poly(tert-butyl styrene)), poly(methyl methacrylate)-g-(poly(tert-butyl styrene)-b-poly(sulfonic acid styrene)), and the corresponding sodium sulfonate salts were successfully synthesized via living anionic polymerization, free radical graft copolymerization, and post-sulfonation strategies. The graft copolymers contained approximately 9 â 10 branches on average and 4 wt% of sulfonic acid or sodium sulfonate blocks adjacent to the backbone or at the branch terminus. The mobility of the sulfonated blocks located at the branch termini enabled the sulfonated blocks to more readily interact and form ionic aggregates. The glass transition temperatures (Tg) of the sulfonated graft copolymers with sulfonated blocks at the branch termini were higher than that of copolymers with sulfonated blocks adjacent to the backbone. More facile aggregation of sulfonated blocks at the branch termini resulted in the appearance of ionomer peaks in SAXS whereas ionomer peaks were not observed in sulfonated graft copolymers with sulfonated blocks adjacent to the backbone.
In addition, similar analogues, novel site-specific sulfonated graft copolymers, poly(methyl methacrylate)-g-(poly(sulfonic acid styrene)-b-poly(ethylene-co-propylene)) (PMMA-g-SPS-b-PEP), poly(methyl methacrylate)-g-(poly(ethylene-co-propylene)-b-poly(sulfonic acid styrene)) (PMMA-g-PEP-b-SPS), and the corresponding sodium sulfonate salts were successfully synthesized. Estimated ï £N values predicted the phase separation of each block and differential scanning calorimetry (DSC) and dynamic mechanical analysis confirmed the phase separation of each block component of the graft copolymers. The aggregation of sulfonic acid or sodium sulfonate groups at the branch termini restricted the glass transition of the PEP block. This lack of the glass transition of the PEP block resulted in higher storage modulus than a sulfonated graft copolymer with sulfonated blocks adjacent to the backbone. The location of sulfonated blocks in both sulfonic acid and sodium sulfonate graft copolymers significantly affected the thermal, mechanical and morphological properties.
Lastly, symmetric (16000 g/mol for each block) and asymmetric (14000 g/mol and 10000 g/mol for each block) poly(ethylene-co-propylene)-b-poly(dimehtylsiloxane) (PEP-b-PDMS) were synthesized using living anionic polymerization and subsequent hydrogenation. The onset of thermal degradation for the PEP-b-PDMS diblock copolymer was higher than 300 ºC and PEP-b-PDMS was more thermally stable than the precursor diblock copolymer, polyisoprene-b-PDMS. DSC analysis of PEP-b-PDMS provided Tg of PDMS -125 ºC, Tg of PEP -60 ºC, Tc of PDMS -90 ºC, and Tm of PDMS -46 and -38 ºC, respectively. Appearance of thermal transitions of each PEP and PDMS block revealed the formation of phase separation. Estimated Ï N also supported the phase separation.Ph. D.
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von, Martens David. "Disrupting linear street life." Thesis, KTH, Arkitektur, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-229921.
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Kan den lokala gatan och omkringliggande arkitektur och urban design bli utmanad med nya sätt att se på kvartersbildning, gatumönster, publika funktioner och eventuella nya funktioner? Den första delen av projektet inkluderade litteraturstudier om staden och livet i staden, undersökningar av typiska och inspirerande urbana miljöer, kvarter och gatumiljöer, och även referensstudier över andra intressanta publika miljöer. Mitt examensprojekt avslutades med framtagandet av ett nytt designförslag för kvartersbildning, gatumönster och bebyggelse för ett område i Sickla öster om Stockholm. Förslaget inkluderar gatumönster, dagvattensystem, kvartersbildning och några kollektiva byggnader, men även stadsbyggnadsregler för bebyggelsen inom området. En mixad bebyggelse av både kommersiella lokaler och bostäder föreslås. Målet för min design är att skapa en stadsmiljö som har följande kvalitéter: - Barn- och lekvänliga gator - Låg till medelhög tät bebyggelse - En stark visuell och fysisk koppling mellan inomhusmiljöer och utemiljöer. - Väldefinierade privata utomhuszoner mellan privata byggnader och publika gator och torg. - En finmaskig gatustruktur med genvägar och diagonala kopplingar som ökar gångbarheten inte bara över gatan, utan även mellan olika kvarter. - Ett dela-med-dig-system, där varje mini-kvarter bidrar med en publik, eller semi-publik, funktion till området. - En grönytestrategi där en stor del av de grönytor som bebyggs ersätts med grönytor på andra ytor som tak och mellan hus.Can the standard local street and its surrounding architecture be challenged with disrupting architecture, reconstructions of the block and displacements of new and old functions, as well as adding imagined new features? The first half of the project included literature studies of the life in the city, research of typical and inspiring urban environments, block pattern and spatial street conditons, as well as other reference studies of interesting public architecture and urban design. My thesis project ended with a design proposal for a new street and block pattern for a site in Sickla East of Stockholm. The proposal includes street, daywater, block and some shared buildings, as well as urban design rules for the construction of the mixed commercial and residental buildings at the site. The aim for my design is to create a street and block structure that have key qualities like: - Child- and play-friendly streets - Low-rise but dense urban blocks - A strong visual and physical connection between the inside of buildings and public outdoor spaces - Well-defined but soft transition zones from the private inside of buildings to the public parts of the streets. - A fine-meshed street-structure with shortcuts and diagonal connections improving walkability and interrelations. - A contribution system where each block contribute with a public or semi-public function, and in return have access to other blocks special functions. - A good green area swap replacing the existing green area being occupied by buildings and streets to other possible surfaces.
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Moussette, Michel. "The Block as Seized (by Friction)- A study oin five parts on Le Corbusier, La Tourete and Architect." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95589.
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The Monastery of Sainte-Marie-de-Ia-Tourette was built for the Dominicans between 1952 and 1960 in Eveux, near Lyon, by the French architect Le Corbusier. It is a massive, imposing, rough, sharp, geometrical, complex, beautiful, dark, surprising, calm and profoundly human building. The aim of this study is to explore, through words written on sheets of paper, the spaceopened by what the monastery has to say. This exploration is particularly relevant to our contemporary world with regard to questions concerning the uses and misuses of technology, the consequences of the hegemony of vision and the difficulties involved in engaging chaos properly.Le monastère dominicain de La Tourette est l'œuvre de l'architecte français Le Corbusier. Il s’agit d'un bâtiment massif, imposant, brutal, aiguisé, mathématique, complexe, tendu, sombre, étonnant, calme et en bout de ligne profondément humain. À travers l'écriture, la présente étude se propose d'explorer l'espace ouvert par ce que dit le monastère. Cette exploration tente de saisir certaines problématiques bien contemporaines tout en offrant l'esquisse d'une réponse à certaines questions plus spécifiquement architecturales . fr
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Brask, Justin Kirkegaard. "Syntheses and molecular architectures of s-block metal derivatives of polyimido and imido/oxo anions with p-block element centers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0028/NQ49483.pdf.
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Al-aqeeli, Abulqadir. "Reconfigurable wavelet-based architecture for pattern recognition applications using a field programmable gate array." Ohio University / OhioLINK, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1177008904.
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Williams, Rachel Ione. "Live Work Studios: A Continuation of Cady's Alley." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/85687.
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The boundary between public and private dwelling presents a complex architectural problem in that it must provide separation and transition, exposure and closure, privacy and interaction, and embodiment and orientation. This thesis explores this boundary and its role in developing a sense of community in the context of artist live/work studios in a dense urban block.Master of Architecture
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Adhikari, Rameshwar. "Correlations between molecular architecture, morphology and deformation behaviour of styrene, butadiene block copolymers and blends." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=964298635.
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Mak, Chung-kit Lawrence. "The hyperdensity block : single occupancy urban dwelling." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25947916.
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Abdelhadi, Ameer M. S. "Architecture of block-RAM-based massively parallel memory structures : multi-ported memories and content-addressable memories." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/59146.
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Since they were first introduced three decades ago, Field-Programmable Gate Arrays (FPGAs) have evolved from being merely used as glue-logic to implementing entire compute accelerators. These massively parallel systems demand highly parallel memory structures to keep pace with their concurrent nature since memories are usually the bottleneck of computation performance. However, the vast majority of FPGA devices provide dual-ported SRAM blocks only. In this dissertation, we propose new ways to build area-efficient, high-performance SRAM-based parallel memory structures in FPGAs, specifically Multi-Ported Random Access Memory and Content-Addressable Memory (CAM). While parallel computation demands more RAM ports, leading Multi-Ported Random Access Memory techniques in FPGAs have relatively large overhead in resource usage. As a result, we have produced new design techniques that are near-optimal in resource overhead and have several practical advantages. The suggested method reduces RAM usage by over 44% and improves clock speed by over 76% compared to the best of previous approaches. Furthermore, we propose a novel switched-ports technique that allows further area reduction if some RAM ports are not simultaneously active. A memory compiler is proposed to generalize the previous approach and allow generating Multi-Switched-Ports Random Access Memory. Content-Addressable Memories (CAMs), the hardware implementation of associative arrays, are capable of searching the entire memory space for a specific value within a single clock cycle. CAMs are massively parallel search engines accessing all memory content to compare with the searched pattern simultaneously. CAMs are used in a variety of scientific fields requiring high-speed associative searches. Despite their importance, FPGAs lack an area-efficient CAM implementation. We propose a series of scalable, area-efficient, and high-performance Binary Content-Addressable Memories (BCAMs) based on hierarchical search and data compression methods. Compared to current RAM-based BCAM architectures, our BCAMs require a maximum of 18% the RAM storage while enhancing clock speed by 45% on average, hence exhibiting a superior single-cycle search rate. As a result, we can build faster and more cost-effective accelerators to solve some of the most important computational problems.Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
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Stokes, Emily C. "Amphiphilic ligand architectures for s-, d- and f-block metallosurfactants towards micellar systems and microemulsions." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/106671/.
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The design, synthesis and characterisation of a range of surfactant-based ligand architectures is presented. The amphiphilic ligands have been shown to form metallosurfactants with a wide range of s-, d- and f-block metals as well as being able to form stable micellar systems either through self-assembly or via doping into a carrier microemulsion. The overall aim of this work was to produce surfactant ligands capable of sequestering metal ions and localising them on the surface of micellar droplets within an oil-in-water microemulsion. Chapter Two investigates the formulation and characterisation of a 1-alkyl-3-methyl imidazolium based micellar system capable of forming stable microemulsions with extremely high oil loadings as well as acting as a carrier for more complex surfactants. This chapter also describes the synthesis and characterisation two novel macrocyclic ligand architectures designed to coordinate a range of s-, d- and f-block metals to form a series of metallosurfactants capable of aggregation in aqueous media. Chapter Three explores an array of acyclic surfactant ligands synthesised from ethylene diamine and diethylene triamine precursors and functionalised with poly-alcohol arms. These amphiphilic ligands were coordinated to Ni(II) and Cu(II) in order to gain insight into their coordination geometries via photophysical studies. Tensiometric investigations of the free ligands and their Sr(II) and Y(III) metallosurfactants assessed their microemulsion compatibility as alternatives to macrocyclic architectures. Chapter Four presents a series of cationic bis-cyclometallated Ir(IIII) complexes where the diimine ligand is a bipyridine species functionalised with a lipophilic alkyl chain and the cyclometallating ligands contain ethyl ester moieties which, upon deprotection, afford water soluble complexes. Combined tensiometric and photophysical studies found these species to be dual emissive as free complexes in solution, with emission arising from both ligand-centred and metal-to-ligand charge transfer mechanisms. Upon aggregation into micelles however, either a quenching of the ligand-centred emission or an enhancement of the metal-to-ligand charge transfer rendered the complexes mono-emissive. Chapter Five reports the synthesis and characterisation of three novel DO3A-based surfactant ligands incorporating pendent chromophores as antennae for near-IR sensitised emission from a range of Ln(II) ions. Luminescent lifetime studies determined that the ligands form 8-coordinate complexes with hydration states suggesting the presence of 0-1 inner sphere water molecules. Combined tensiometric and photophysical studies proved the metallosurfactants to be capable of self-assembly into micelles in aqueous media and found aggregation to have a notable effect on the local environment of the Ln(III) ions.
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Guillemet, Baptiste. "Synthesis of novel double hydrophilic block copoplymer architectures and their applications as crystal growth modifiers." Bordeaux 1, 2005. http://www.theses.fr/2005BOR13033.
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L'objectif de cette étude est de démontrer l'influence de différentes architectures de copolymères à bloc doubles hydrophiles (DHBCs) sur le contrôle de la minéralisation de matériaux inorganiques en milieux aqueux. Une série de copolymères à bloc adaptés à l'étude en minéralisation, basés sur le PEO et le PAA, a tout d'abord été synthétisée (linéaires, triblocs et étoiles). Ensuite, l'étude systématique envisagée sur l'oxyde de zinc (ZnO) s'est avérée limitée pour des raisons expérimentales et seuls certains copolymères ont montré un incroyable contrôle sur ce système. Les conditions de précipitation du carbonate de calcium (CaCO3) étant mieux adaptées à nos additifs, une étude systématique de l'influence à la fois de l'architecture, de la longueur des blocs et de la masse molaire globale a été menée, prenant en compte l'analyse détaillée des caractéristiques intrinsèques des cristaux obtenus. La principale différence entre nos différentes architectures réside dans l'obtention d'effets binaires pour les linéaires et progressifs pour les étoiles, les triblocs servant de systèmes intermédiaires. De plus, cette étude nous a permis d'établir des modèles de mécanismes pour interpréter nous résultats ainsi que les conditions optimales d'utilisation de ce genre d'additif. Enfin, une étude préliminaire a été consacrée à l'étude de la stabilisation du carbonate de calcium sous sa forme amorphe par nos DHBCs. Les informations tirées de ces différentes études apportent quelques réponses quant au mécanisme global de biominéralisation.
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Bittencourt, Leonard Salazar. "Ventilation as a cooling resource for warm-humid climates : an investigation on perforated block wall geometry to improve ventilation inside low-rise buildings." Thesis, Open University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335192.
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Gevaert, Dorine. "Methodology for generic architecture definition for current mode converters including automated building block characterisation and mismatch modelling." Thesis, Leeds Beckett University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485478.
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The challenges for the next generation of integrated circuit (IC) design of analogue and mixed-signal building blocks in standard CMOS technologies for moderate signal conversion in broadband applications, demand research progr~ss in the emerging scientific fields of device physics and modelling, converter architectures, correction algorithms, design automation, technology development, quality assurance and cost factor analysis. The contribution of this thesis to converter architectures is in new topological reusable bUilding blocks for analogue-to-digital (ADC) current converters and improved switching techniques for digital-to-ana.'tlgue (DAC) current converters. A generic compiler for the current folding and interpolating ADC and current steering DAC converter architectures, which take into account the fast technological CMOS changes in an automated down-link towards the basic building blocks, reduces the design time considerably. The new current converter architectures have been realized for 12-bit accuracy in standard CMOS technology. The generic compiler allows fast architectural exploration for other converter specification and the impact on the sizing of the transistors at basic building blocks level for a certain quality specification to be determined. The contributions to modelling, quality assurance and cost factor are the total new concepts in deriving design curves to reduce the design time and to reduce the total chip area of the current converters. For each new technology design curves for standardized transistor sizes for noise level, threshold voltage, I-V curves, overdrive voltage versus lambda and mismatch error modeling of the standard deviation of the drain current for the target operation condition, are automatically derived. For other transistor sizes the values are calculated in an automated procedure. These new design concepts reduce the over-sizing of the transistors, compared to the existing methods, with 15 to 20% for the same quality specification. Besides the reduction of the silicon cost also the design time cost is reduced considerably.
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Bandyopadhyay, Abhishek. "Matrix transform imager architecture for on-chip low-power image processing." Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-08192004-133909/unrestricted/bandyopadhyay%5Fabhishek%5F200412%5Fphd.pdf.
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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2005.Smith, Mark, Committee Member ; DeWeerth, Steve, Committee Member ; Jackson, Joel, Committee Member ; David Anderson, Committee Member ; Hasler, Paul, Committee Chair. Includes bibliographical references.
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Kuacharoen, Pramote. "Embedded Software Streaming via Block Streaming." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5252.
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Downloading software from a server usually takes a noticeable amount of time, that is, noticeable to the user who wants to run the program. However, this issue can be mitigated by the use of streaming software. Software steaming is a means by which software can begin execution even while transmission of the full software program may still be in progress. Therefore, the application load time (i.e., the amount of time from when an application is selected for download to when the application can be executed) observed by the user can be significantly reduced. Moreover, unneeded software components might not be downloaded to the device, lowering memory and bandwidth usages. As a result, resource utilization such as memory and bandwidth usage may also be more efficient. Using our streaming method, an embedded device can support a wide range of applications which can be run on demand. Software streaming also enables small memory footprint devices to run applications larger than the physical memory by using our memory management technique.
In this dissertation, we present a streaming method we call block streaming to transmit stream-enabled applications, including stream-enabled file I/O. We implemented a tool to partition software into blocks which can be transmitted (streamed) to the embedded device. Our streaming method was implemented and simulated on an MBX860 board and on a hardware/software co-simulation platform in which we used the PowerPC architecture. We show a robotics application that, with our software streaming method, is able to meet its deadline. The application load time for this application also improves by a factor of more than 10X when compared to downloading the entire application before running it. The experimental results also show that our implementation improves file I/O operation latency; in our examples, the performance improves up to 55.83X when compared with direct download. Finally, we show a stream-enabled game application combined with stream-enabled file I/O for which the user can start playing the game 3.18X more quickly than using only the stream-enabled game program file alone.
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Ludwig, Fernando José. "A Arquitetura de Paz na América do Sul: A projeção regional e internacional do Brasil na consolidação da paz." Doctoral thesis, 2015. http://hdl.handle.net/10316/28845.
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Tese de doutoramento em Relações Internacionais, na especialidade de Política Internacional e Resolução de Conflitos, apresentada à Faculdade de Economia da Universidade de CoimbraA atual conjuntura da América do Sul presenta-se enquanto um desafio no que se refere a construção da paz regional. A paz, portanto, na região é entendida, pelos académicos, enquanto anómala, referente ao número relativamente baixo de conflitos interestatais na região. Sob esta égide, embora os países Sul-americanos não entrem em conflitos diretos, verifica-se um alto índice de problemas estruturais, que resultam na consolidação de uma paz negativa (Galtung, 1969). Neste sentido, a presente tese de doutoramento visa compreender a singularidade da construção da paz na América do Sul, tendo em consideração o papel da projeção regional e internacional do Brasil nesta configuração. Assim, para entender esta projeção brasileira em prol de uma política a favor da manutenção da paz (negativa), utiliza-se a construção metodológica de Gramsci (1971) acerca da conceptualização do Bloco Histórico e Hegemonia, bem como suas possíveis (re)interpretações e transposições para o cenário internacional, mais especificamente em casos de regionalismo (MERCOSUL e UNASUL). Em última análise, busca-se uma releitura, a partir de uma perspetiva neogramsciana, da conceção de paz que, devido aos caminhos epistemológicos da presente tese, passa por reinterpretar também os conceitos arraigados ao regionalismo.
The present configuration of South America’s conjecture presents itself a challenge regarding the conceptualization and construction of a regional peace. Therefore, South America’s peace is considered, among scholar, as being an anomaly, due its low level of regional interstate conflicts. In spite of this, albeit the fact that South American’s countries do not engage in direct conflicts, its high level of structural problems leads to a consolidation of a negative peace (Galtung, 1969). In this regard, the present doctoral thesis aims to comprehend the singularity of such construction of peace in South America, bearing in mind the role of Brazil’s projection in both levels, regionally and internationally. Thus, in order to understand the role of Brazilian foreign policy in favour of the maintenance and/or consolidation of such (negative) peace in South America, this thesis appropriates Gramsci’s (1971) thought and methodology about his conceptualization of historical bloc and hegemony. As well as its possibility to (re)interpretations and transposition to the international scenario, more specifically towards the South American regionalism (MERCOSUR and UNASUR). In sum, the main goal is to reevaluate, from a neogramscian perspective, the concept of peace that, due the epistemological path taken by this doctoral thesis, also reevaluates concepts rooted on regionalism.
FCT - SFRH / BD / 64916 / 2009
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Tzeng, Chao-Feng, and 曾照峰. "Efficient Embedded Block Coding Architecture For JPEG2000." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/06153697579765648578.
Full textAbstract:
碩士國立成功大學
電機工程學系碩博士班
95
JPEG2000 is the new international standard for still image compression. It provides superior performance in terms of visual quality and PSNR compared to JPEG. However, the computational complexity of JPEG2000 is much higher than JPEG. In this thesis, we present a efficient embedded block coding architecture for JPEG2000. For the fractional bit-plane coding, the most complicated part of JPEG2000, the architecture can process a bit-plane within one scan. This greatly improve the processing rate. Moreover, The gate counts and memory requirement are also reduced for hardware implementation.
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Jong, Her-Ming, and 鍾和明. "Architecture design for hierarchical block-matching algorithms." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/01032876308998167621.
Full textAbstract:
博士國立臺灣大學
電機工程研究所
82
This dissertation presents issues and novel contributions to algorithms and VLSI architecture design of block-matching motion estimation algorithm, the most critical component in a real-time video coding system. Traditionally, parallel architecture design of block-matching are feasible for only full search method because of its extreme operation regularity. The approach of this dissertation is to propose efficient parallel architectures for well-known fast block-matching algorithms to utilize their advantage of low computation complexity. First, three improvements to the 3-step hierarchical search block-matching algorithm are then presented: a multiple-winner search that enhances the estimation accuracy, a method of subsampling that reduces computation and input data amount, and an overlapping strategy that improves the accuracy of large-area search. Experimental results show that combining these techniques provides high- speed and high-precision motion estimators with reduced on-chip buffers and lowered input bandwidth requirements. Then, to implement the 3-step search algorithm efficiently, parallel VLSI architectures with intelligent data arrangement and memory configuration are designed and verified. Techniques for reducing interconnections and external memory accesses are also presented. Because of their low costs, high speeds, and low memory bandwidth requirements, the proposed 3-PE, 9-PE, and 27-PE architectures provide efficient solutions for real-time motion estimations required for video applications of various data rates , from low bit-rate video to HDTV systems.
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Leblanc, Luc. "Modélisation procédurale par composants." Thèse, 2011. http://hdl.handle.net/1866/6159.
Full textAbstract:
Le réalisme des images en infographie exige de créer des objets (ou des scènes) de plus en plus complexes, ce qui entraîne des coûts considérables. La modélisation procédurale peut aider à automatiser le processus de création, à simplifier le processus de modification ou à générer de multiples variantes d'une instance d'objet. Cependant même si plusieurs méthodes procédurales existent, aucune méthode unique permet de créer tous les types d'objets complexes, dont en particulier un édifice complet. Les travaux réalisés dans le cadre de cette thèse proposent deux solutions au problème de la modélisation
procédurale: une solution au niveau de la géométrie de base, et l’autre sous forme d'un système général adapté à la modélisation des objets complexes.
Premièrement, nous présentons le bloc, une nouvelle primitive de modélisation simple et générale, basée sur une forme cubique généralisée. Les blocs sont disposés et connectés entre eux pour constituer la forme de base des objets, à partir de laquelle est extrait un maillage de contrôle pouvant produire des arêtes lisses et vives. La nature volumétrique des blocs permet une spécification simple de la topologie, ainsi que le support des opérations de CSG entre les blocs. La paramétrisation de la surface, héritée des faces des blocs, fournit un soutien pour les textures et les fonctions de déplacements afin d'appliquer des détails de surface. Une variété d'exemples illustrent la généralité des blocs dans des contextes de modélisation à la fois interactive et procédurale.
Deuxièmement, nous présentons un nouveau système de modélisation procédurale qui unifie diverses techniques dans un cadre commun. Notre système repose sur le concept de composants pour définir spatialement et sémantiquement divers éléments. À travers une série de déclarations successives exécutées sur un sous-ensemble de composants obtenus à l'aide de requêtes, nous créons un arbre de composants définissant ultimement un objet dont la géométrie est générée à l'aide des blocs.
Nous avons appliqué notre concept de modélisation par composants à la génération d'édifices complets, avec intérieurs et extérieurs cohérents. Ce nouveau système s'avère général et bien adapté pour le partionnement des espaces, l'insertion d'ouvertures (portes et fenêtres), l'intégration d'escaliers, la décoration de façades et de murs, l'agencement de meubles, et diverses autres opérations nécessaires lors de la construction d'un édifice complet.The realism of computer graphics images requires the creation of objects (or scenes) of increasing complexity, which leads to considerable costs. Procedural modeling can help to automate the creation process, to simplify the modification process or to generate multiple variations of an object instance. However although several procedural methods exist, no single method allows the creation of all types of complex objects, including in particular a complete building. This thesis proposes two solutions to the problem of procedural modeling: one solution addressing the geometry level, and the other introducing a general system suitable for complex object modeling. First, we present a simple and general modeling primitive, called a block, based on a generalized cuboid shape. Blocks are laid out and connected together to constitute the base shape of complex objects, from which is extracted a control mesh that can contain both smooth and sharp edges. The volumetric nature of the blocks allows for easy topology specification, as well as CSG operations between blocks. The surface parameterization inherited from the block faces provides support for texturing and displacement functions to apply surface details. A variety of examples illustrate the generality of our blocks in both interactive and procedural modeling contexts. Second, we present a novel procedural modeling system which unifies some techniques into a common framework. Our system relies on the concept of components to spatially and semantically define various elements. Through a series of successive statements executed on a subset of queried components, we grow a tree of components ultimately defining an object whose geometry is made from blocks. We applied our concept and representation of components to the generation of complete buildings, with coherent interiors and exteriors. It proves general and well adapted to support partitioning of spaces, insertion of openings (doors and windows), embedding of staircases, decoration of façades and walls, layout of furniture, and various other operations required when constructing a complete building.
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james and 陳建中. "A Study on the Hardware Architecture of Block Cipher." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/87477679670966663159.
Full textAbstract:
碩士中華技術學院
電子工程研究所碩士班
97
At present, the common hardware construction design research of the block cipher, has been pipeline and Feedback, but when these composition implement to chip,the datarate、chip area and chip power Consumption will influence each other, in order to consider the question that Equilibrate the hardware design, this thesis design a 「n-Pipeline and Feedback」construction,it’s integrated the advantage og pipeline and feedback. Offer the good improvement way of the hardware efficiency. The 「n-Pipeline and Feedback」construction suitable for the block cipher algorithms that based on Round. This research takes Triple-DES as an example, Using FPGA hardware to implement this construction and assess the relevant parameters of the hardware. In different n value, the datarate、chip area and chip power Consumption really influence each other, This thesis presentation the way in performance assesses to make better n value, From the appearing of the performance,regarding the datarate、chip area and chip power consumption,can effective choice n value in realizes hardware's demand, achieves the better hardware combination and equilibrate the hardware structure of performance. Also can combine the embedded system, uses the hardware to totally protect and random protect ,protect the image file in grades.
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Lee, Chen-Yi, and 李宸奕. "Semantic Blog Architecture Supporting Lessons Learned in Project Management." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/03506892386885552807.
Full textAbstract:
碩士大同大學
資訊工程學系(所)
94
Problem and Aim Knowledge is power, and history repeats itself. We inject lessons learned that we earned from projects with metadata format according as our designed ontology model by a Semantic blog architecture system. Project management processes can be organized into five groups of one or more processes, included Initiating, Planning, Executing, Controlling, and Closing. At the Controlling processes, we must ensuring that project objectives are met by monitoring and measuring progress regularly to identify variances from plan so that corrective action can be taken when necessary. Then we need to record these corrective actions and why we chose the corrective action but not the others, for a later activity or project to refer and not to cause a same failure. These records are valuable knowledge asset and will be the lessons learned knowledge base. The ability of Project Management Information System (PMIS) or Knowledge Management Information System (KMIS) now we have is only could store data and query data by string mapping on indexed columns, but these data ware only understood by human but not Information System. The limitation is depressing whole capability that Information System could provide on the basis. For example, we know how difficult to locate the information that we need now. However, if there’s a way to make Information System to understand more on those stored data, then we could have a chance to improve the reusability of this information, and even derive more information based on original information with some rules that we defined. From the project management point of view, there’s another need for knowledge management, it about the range of information that have been stored. Currently PMIS or KMIS that we are using were only store results of processes output. But if we only store output results but not include those pieces of information that conduct the progressing of processes, then we could hardly know why we have to make these decisions and to caused those results. However, the most important and valuable knowledge asset are these strategies, and information about how we developed it and based on what events or conditions, for easily have a formal review of what we have done. Which give us opportunities to refine current processes based on historical experience, and not to repeat a failure. Goal and Targets Our goal for this system is to complete a core platform with a small model, and will have several targets listed below : 1. Core platform design and implementation. 2. Project’s lessons learned centrically OWL’s Ontology model design and creation. 3. Integrating Blog system with targets 1, 2. 4. Integrating annotation tools with target 1, 2, 3. Developing semantic enabled functions to improving Knowledge Management System in Project Management Domain. Research Methodology Because we are performing a knowledge engineering process that successful technical work is only possible if it is properly situated within the wider organizational context. So a knowledge engineering methodology will greatly help for not just on knowledge management, but also very useful on requirement engineering, enterprise modeling. The CommonKADS Methodology is an Analysis-oriented modeling : The modeler uses a set of related descriptors that enables a structured representation of an organization’s salient features, but that excludes simulation of the organization’s behavior. The emphasis is on analysis and diagnosis. Its advantage lies in the relative ease and speed with which somewhat inexperienced people can apply it. The CommonKADS model suite are composed by totally six models, as listed below : 1. Organization Model (OM) : Supports the analysis of the major features of an organization, in order to discover problems and opportunities for knowledge systems, establish their feasibility, and assess the impacts on the organization of intended knowledge actions. 2. Task Model (TM) : The relevant subparts of a business process. 3. Agent Model (AM) : Agents are executors of a task. 4. Knowledge Model (KM) : To explicate in detail the types and structures of the knowledge used in performing a task. 5. Communication Model (CM) : To model the communicative transactions between the agents involved. 6. Design Model (DM) : The above CommonKADS models together can be seen as constituting the requirements specification for the knowledge system, broken down in different aspects. Based on these requirements, the design model gives the technical system specification in terms of architecture, implementation platform, software modules, representational constructs, and computational mechanisms needed to implement the functions laid down in the knowledge and communication models. Conclusion We have provided some creative applications on Project Management Domain here, especially aim at team collaboration and conversation, at the Knowledge Management point of view : 1. Semantic Blog metadata extraction with links to original file and locations �� (a) Provide easy to used tool for annotation �� (b) Could fill in these metadata with lessons learned ontology 2. Semantic Blog navigation for lessons learned �� (a) Scheme based browsing view �� (b) Multi-facets browsing view 3. Semantic query for lessons learned �� (a) A schema driven query window and query by entries �� (b) Get retrieved metadata with full content of blog entries or documents
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Hsiao, Yun Tai, and 蕭允泰. "The Architecture Design of Embedded Block Coding in JPEG 2000." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/26106863875909286270.
Full textAbstract:
碩士國立交通大學
電子工程系
89
The current state of JPEG 2000 Part 1 is International Standard. It adopts the novel image compression techniques and provides the richest set of features that are not served by current standards. However, the bit-level computations of the embedded block coding operations make JPEG 2000 hard to be efficiently executed on the general-purpose CPU architectures. One of the viable solutions is through an ASIC design. The objective of this thesis is to design a dedicated hardware for the embedded block coding algorithm in JPEG 2000. In order to reduce the memory requirement problem of the embedded block coding algorithm, we propose the novel memory-saving algorithm, which can achieve 20% reduction in on-chip memory. Four different levels of parallelisms in block coding algorithm are described, and we use the pixel-skipping method to exploit the pixel-level parallelism for accelerating the encoding time. Besides, we propose the variable-cycle code register renormalization method and multi-cycles FLUSH procedure in our pipelined MQ Coder architecture, such that the clock rate can be enhanced up to 142MHz (at post-layout simulation). Based on the methods we proposed and adopted, the prototyping chip is implemented with the area 3.345x3.313 mm2. We expect the chip can run at 100 MHz although it achieves 142 MHz clock rate at post-layout simulation. With the expected frequency (100MHz), it takes about 503.42 ms to encode 30 frames with 4:4:4 format, 256x256 images or about 0.92 s to encode 30 frames with 4:2:0 format, 512x512 images. Therefore, it can support some popular applications such as the forthcoming Motion JPEG 2000.
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Yang, Lizhang. "Miktoarm star block copolymers: Effects of molecular architecture over morphology." 2002. https://scholarworks.umass.edu/dissertations/AAI3039404.
Full textAbstract:
Three aspects of the effects of molecular architecture on block copolymer and block copolymer/homopolymer blends morphological behavior have been investigated. In the Chapter 2 and 3, the morphological behaviors of “Model” graft block copolymer/homopolymer blends was discussed. The morphological behaviors for two distinct types of graft architectures were investigated. The first type, I2S block copolymers, which have 2 low polydispersity (PDI) polyisoprene arms and one low PDI polystyrene arm joint at a single junction point, has an asymmetry, non-linear molecular architecture. The second type, I2S2 block copolymers, which have 2 low PDI polyisoprene arms and two low PDI polystyrene arms joint at a single junction point, has a symmetry, non-linear molecular architecture. In the blend study, a slow co-casting procedure was developed to get single crystal structure of Gyroid morphology. The amazing scattering patterns of this sample provide the best evidence for Gyroid morphology observed so far. In Chapter 4, morphological behavior of I5S block copolymers was studied to investigate the systematic discrepancies between the theoretical predicated miktoarm star block copolymer morphology and the experimental observations. The current results indicate that geometrical packing constraints prevent the formation of morphologies such as spheres and cylinders in highly asymmetric miktoarm stars in which the minor volume fraction component would need to occupy the matrix phase. Unusual broken chevron tilt grain boundary morphologies were also observed in a lamellar I5 S material. We attribute these new structures to the asymmetric energy penalties for interfacial bending which result from the molecular asymmetry of the miktoarm stars. Finally, irreversible morphology transformation from lamella to cylinder was investigated using selective solvent approach. Selective solvent can preferentially swell one of the components of block copolymers, increase the effective volume fraction of that component during solvent casting and thus affect the resulting block copolymer morphology. During the subsequent annealing, the kinetically trapped unstable morphology will transform to its stable morphology. By controlling the annealing temperature and the length of annealing time, we will be able to tract the detailed information about the morphology transformations.
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Ku, Hsien-Chun, and 顧賢俊. "An Architecture of Decoder for Reed-Solomon Block Turbo Code." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/82810967468479543019.
Full textAbstract:
碩士中華大學
電機工程學系碩士班
98
In the last few years, error correcting codes have been investigated because of the rapid development of wireless communications. Reed-Solomon code is one of error correcting codes with a wide range of applications in digital communications and storage. Recently, block turbo codes using Reed-Solomon component codes have been investigated. This was motivated by the higher code rate property of Reed-Solomon codes and their efficiency for burst error correction. For the next generation wireless technologies, Reed-Solomon block turbo codes can offer a good trade-off between complexity and performance for ultra-high throughputs. In fact, the main advantage of Reed-Solomon block turbo codes is for high code rate application. In this thesis, Reed-Solomon block turbo codes will be investigated and a decoder architecture for (31,29)2 Reed-Solomon block turbo codes using step-by-step Reed-Solomon decoder will be proposed.
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Ding, Ke [Verfasser]. "Architectures of DNA block copolymers / vorgelegt von Ke Ding." 2006. http://d-nb.info/98214217X/34.
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Maher, Bertrand Allen. "Atomic block formation for explicit data graph execution architectures." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-08-1904.
Full textAbstract:
Limits on power consumption, complexity, and on-chip latency have
focused computer architects on power-efficient designs that exploit
parallelism. One approach divides programs into atomic blocks of
operations that execute semi-independently, which efficiently creates
a large window of potentially concurrent operations. This
dissertation studies the intertwined roles of the compiler,
architecture, and microarchitecture in achieving efficiency and high
performance with a block-atomic architecture.
For such an architecture to achieve high performance the compiler must
form blocks effectively. The compiler must create large blocks of
instructions to amortize the per-block overhead, but control flow and
content restrictions limit the compiler's options. Block formation
should consider factors such of frequency of execution, block size
such as selecting control-flow paths that are frequently executed, and
exploiting locality of computations to reduce communication overheads.
This dissertation determines what characteristics of programs
influence block formation and proposes techniques to generate
effective blocks. The first contribution is a method for solving
phase-ordering problems inherent to block formation, mitigating the
tension between block-enlarging optimizations---if-conversion, tail
duplication, loop unrolling, and loop peeling---as well as scalar
optimizations. Given these optimizations, analysis shows that the
remaining obstacles to creating larger blocks are inherent in the
control flow structure of applications, and furthermore that any fixed
block size entails a sizable amount of wasted space. To eliminate
this overhead, this dissertation proposes an architectural
implementation of variable-size blocks that allow the compiler to
dramatically improve block efficiency.
We use these mechanisms to develop policies for block formation that
achieve high performance on a range of applications and processor
configurations. We find that the best policies differ significantly
depending on the number of participating cores. Using machine
learning, we discover generalized policies for particular hardware
configurations and find that the best policy varies significantly
between applications and based on the number of parallel resources
available in the microarchitecture. These results show that effective
and efficient block-atomic execution is possible when the compiler and
microarchitecture are designed cooperatively.text