Dspace

يهدف البحث الى التعرف على اهمية المستودعات الرقمية، ودورها في مجال حفظ وتنظيم المحتوى الرقمي. فضلا عن التعرف على اهم المعايير العالمية لتقييم نظم بناء المستودعات الرقمية لاغراض المفاضلة بينها من اجل اعطاء فرصة لمؤسسات المعلومات لاختيار الملائم منها

Conferencia sobre el proceso de creación e implementación del Repositorio de Tesis, Portal de Revistas y el Repositorio Institucional. La conferencia fue presentada en la Universidad Nacional de Cajamarca, Universidad Católica de Santa María de Arequipa, Universidad Nacional de Trujillo, Universidad Católica Los Ángeles de Chimbote y la Universidad Nacional San Antonio Abad del Cusco como parte del evento 1er Seminario-Taller sobre Repositorios Institucionales.

The open access initiative had opened avenues to build up the concept 'digital library' and initiating digital libraries/repositories at institutional level and made the librarians involved in the process in a successive manner in Sri Lanka. Though the librarians are concerned about the bibliographic standards in attempting these initiatives there were many barriers and issues they had encountered in utilizing digital library methodologies and software. The DL landscape in Sri Lanka shows all these land marks of by gone decades and building blocks of new developments with emerging technologies. The article tries to gather the initiatives and developments taken place in affiliation with different academic / research institutions and coordinating bodies along the short history of DLs in Sri Lanka.

Dspace ‫على‬ ‫التشغيل‬ ‫نظام‬ ‫بيئة‬ ‫ويف‬ ‫احمللي‬ ‫اخلادم‬ Windows ‫االدلة‬ ‫سلسلة‬ ‫يف‬ ‫االول‬ ‫الدليل‬ ‫هذا‬ ‫ويعد‬ . ‫للنظام‬ ‫التعليمية‬ ‫املكتبات‬ ‫جمال‬ ‫يف‬ ‫للعاملني‬ ‫املعرفية‬ ‫املهارات‬ ‫زيادة‬ ‫منها‬ ‫يراد‬ ‫والتي‬ .. ‫املفتوح‬ ‫املصدر‬ ‫بربجميات‬ ‫واملعلومات‬ ‫بغداد‬ ‫المعلومات،‬ ‫لتكنولوجيا‬ ‫العراقية‬ ‫الجمعية‬ : 3102 [email protected] ( ‫رقم‬ ‫الشكل‬ 6 ‫التنصيب.‬ ‫بدأ‬ ‫شاشة‬ ) ‫نظام‬ ‫شاشة‬ ‫الى‬ ‫االنتقال‬ ‫يتم‬ ‫موافق‬ ‫على‬ ‫الضغط‬ ‫بعد‬ DOS ‫تبدو‬ ‫سوف‬ ‫والتي‬ ‫السوداء)‬ ‫(الشاشة‬ ‫الشكل‬ ‫في‬ ‫كما‬ ( ‫رقم‬ 16 .) ( ‫رقم‬ ‫الشكل‬ 16 ) ‫السطر‬ ‫عند‬ [C:\Documents and Setting>] ‫بشكل‬ ‫االتي‬ ‫اكتب‬ ‫اصدارات‬ ‫ارقام‬ ‫تظهر‬ ‫سوف‬ ‫مشاكل‬ ‫اي‬ ‫وجود‬ ‫عدم‬ ‫حالة‬ ‫في‬ ‫تتابعي‬ : ‫تنصيبها‬ ‫نجاح‬ ‫يعني‬ ‫وهذا‬ ‫البرمجيات‬ ‫هذه‬ ( ‫رقم‬ ‫الشكل‬ ‫في‬ ‫مبينة‬ ‫وكما‬ 15 ‫اكتب‬ ‫عندها‬ .) exit ‫في‬ ‫الشاشة.‬ ‫من‬ ‫للخروج‬ ‫السطر‬ ‫نهاية‬

Informe Profesional para optar el grado de Licenciada en Bibliotecología y Ciencias de la Información por la UNMSM. El informe evalúa a Cybertesis Perú, repositorio de tesis de la Universidad Nacional Mayor de San Marcos para determinar su visibilidad e interoperabilidad  mediante el análisis de las estadísticas obtenidas de las herramientas AWStats, Google Scholar y Ahrefs con la finalidad de plantear una propuesta para mejorar la calidad del repositorio.

Wichita State University Libraries recently upgraded its DSpace based institutional repository, Shocker Open Access Repository (SOAR), to the new version 1.6.2 with an XML-based interface “Manakin”. Manakin gives the possibility of creating different interfaces called “themes” and themes provide branding for various communities and new functions and visual effects for images and other collections.
This presentation will address the customization of Manakin and the implementation of new functions and features from an institution’s experience. It will discuss how we create the local theme, test the interfaces for different communities and an image gallery theme for image collections. It will address details including modifying page structures, customizing content, and adding new navigation menus (e.g. “Share” and “Information”). It will show how we use Firebug and IE8 Developer Tools to preview CSS changes, how we modify XSLT stylesheets and work in a unix environment. These experiences and techniques can be applied by other institutions which use DSpace. This presentation will also give some reflections on working with system and with a team from the perspective of a Metadata Catalog Librarian in a medium sized library.

We present an experiment of customized mapping and metadata transfer from DSpace/SOAR to OCLC to improve ETD work flow at Wichita State University Libraries. SOAR (Shocker Open Access Repository) is a DSpace based digital library platform to preserve intellectual output of university faculty and researchers. It includes the University theses and dissertations that are cataloged in SOAR and OCLC. Until early 2008, catalogers have been creating two records (Dublin Core and MARC) for the same title manually. The goal of the experiment is to automate the process of generating MARC records from Dublin Core metadata in SOAR and importing them to OCLC and Voyager.
This presentation will discuss how we harvest theses data from SOAR using MarcEdit developed by Terry Reese at Oregan State University Libraries, how we customize Library of Congress’s XSLT mapping to transfer Dublin Core metadata to MarcXML metadata and how we export MARC data to OCLC. The customization includes selective data transformation, metadata element positioning, field relationship definition, field indicator correction and validation and partial data extraction. This customized mapping and data transformation can eliminate the need of double entry in SOAR and OCLC, meet our local needs and significantly improve our ETD work flow.

In this paper, authors propose a new power multilevel converter topology that is very competitive compared to the existing ones. It consists of packed U cells (PUC). Each U cell consists of an arrangement of two power switches and one capacitor. It offers high-energy conversion quality using a small number of capacitors and power devices and consequently, has a very low production cost. An averaged model of the topology is detailed. The operating principle of the transformerless seven-level inverter is analyzed and detailed. The multilevel sinusoidal modulation has been adapted for use with the PUC-based structure. The control strategy has been designed to reduce the harmonic contents of the load voltage. With such converters, filters' rating is considerably reduced. A comparative study is performed to highlight the advantages of the new packed U cells topology. The operation of the proposed converter topology has been verified through simulation. Experimental validation was performed using DS1103 DSP of dSpace.

Various surveys are being conducted to rank business schools in India. They give importance to parameters like placements, brand value and intellectual capital. Intellectual capital of a business school is the sum of its human capital, structural capital and customer capital. The structural capital consists of the published scholarly material of its faculty and students. Use of technologies like institutional repositories for capturing the structural component of the intellectual capital and enabling knowledge sharing in Academic Institutions especially in developing countries like India are emerging.This paper explores creation of a pilot institutional repository at the Icfai Business School, Ahmedabad and discusses a survey conducted to ascertain different considerations for implementing an institutional repository, the current status and future scope.

Developing countries face serious problems on building and using digital libraries (DL) due to low computer and Internet penetration rates, lack of financial resources, etc. Thus, since mobile phones are much more used than computers in these countries, they might be a good alternative for accessing DL. Moreover, in the developed world there has been an exponential growth on the usage of mobile phones for data traffic, establishing a good ground for accessing DL on mobile devices. This paper presents a design proposal for making DSpace-based digital libraries accessible on mobile phones. Since DSpace is a popular free and open source DL system used around the world, making it accessible through mobile devices might contribute for improving the global accessibility of scientific and academic publications.

En el 2003, nace el Servicio de Difusión de la Creación Intelectual (SEDICI) como el repositorio institucional de la Universidad Nacional de La Plata (UNLP), con el objetivo prioritario de socializar el conocimiento generado en las diferentes áreas académicas de la Universidad, para devolver a la comunidad los esfuerzos destinados a la Universidad Pública, con el pasar de los años la plataforma de software de SEDICI (desarrollo propio) fue creciendo en funcionalidades por lo que el diseño, mantenimiento e implementación la convirtieron en una herramienta compleja. Por ello, se realizó una migración a la plataforma DSpace en el 2012, herramienta de software que mejor se adaptaba a las necesidades de SEDICI. DSpace, al igual que otras plataformas, presenta limitaciones en diferentes ámbitos tales como: procesos de depósitos, manejo de estadísticas y de las comunidades-colecciones-items, vocabularios controlados centrados en los autores, representación de los recursos, etc. De estas limitaciones, la representación de los recursosproceso de registrar en forma persistente un conjunto de datos de los recursos-fue uno de los principales problemas presentados en la transición a DSpace, ya que se migraron muchos recursos en forma separada e incluso se realizaron adaptaciones por incompatibilidad de ambos sistemas porque la representación de distintos recursos era muy variada. Por tanto, este trabajo se centrará en describir el problema de la representación de recursos dentro del repositorio institucional SEDICI. El trabajo se limita a la tipología de recursos: artículos de investigación, tesinas de grado y tesis de postgrado, libros, autores, instituciones, revistas y sus números, eventos y sus instancias.

This paper presents simulation and experimental results of anti-windup PI controller to improve induction machine speed control based on direct torque control (DTC) strategy. Problems like rollover can arise in conventional PI controller due to saturation effect. In order to avoid such problems anti-windup PI controller is presented. This controller is simple for implementation in practice. The proposed anti-windup PI controller demonstrates better dynamic step changes response in speed in terms of overshoots. All simulation work was done using Simulink in the MATLAB software. The experimental results were obtained by practical implementation on a dSPACE 1104 board for a 1.5 KW induction machine. Simulation and experimental results have proven a good performance and verified the validity of the presented control strategy.

In the paper presented below, the focus is directed
to the automation and control of an AC motor, as
well as obtaining its mathematical model (in the form
of transfer function) using DSPACE platform, which
facilitates the realization of real time testing that
is necessary to identify the process here presented.
Once the model is obtained, we proceed to develop
the design of a controller based on the Generalized
Predictive Control (GPC) methodology. Finally, the
controller designed was applied to the system coupled
to a simulated load by an electromagnetic break. As
it is known, the usage of these motors is widespread
in the industry, this work is aimed to controlling the
speed, its response to changes in set point and its
response to the presence of disturbances.

Institutional repositories (IR) are digital collections that capture, collect, manage, disseminate, and preserve scholarly work created by the constituent members in individual institutions. This paper presents the results of an effort to develop and design an IR of Anjuman-i-Islam 's Kalsekar Technical Campus (AIKTC), New Panvel, and India. The web performance of AIKTC institutional repositories is examined. Its performance in archiving and sharing based on the Ranking Web of Repositories (RWR) is also analysed. The main aim of ranking and registration is to promote the development of open access by providing timely information about the growth and status ofrepositories throughout the world. Open access to research maximizes research access and thereby also research impact, making research more productive and effective. The repository is web-enabled using DSpace Digital Library software and can be accessed online.

The open source software (OSS) makes source code available to users, who can change the software to modify it more closely to their own requirements. Now the OSS is available for library and information management Examples of such systems include GSDL, DSpace, NewGenlib, Fedora, and Ganesha digital library software, etc. The OSS is popular with technically sophisticated users, who are often also the software developers. The OSS is becoming an increasingly popular software development method. This paper highlights the comparison of features, functions and usability of OSS, i.e., GSDL, DSpace, E-Prints, Fedora, Ganesha, Invenio, XTS, Dienst, VuDL, and NewGenlib. Ranking of the software have been done based on the assigned points for each criteria. The GSDL scored maximum points, i.e., 47 and hence it is in rank first followed by VuDL which scored 43 points.

O repositório institucional (RI) representa proposta que amplia a visibilidade e acesso à produção científica, atuando como instrumento de ação política e assumindo relevante papel na discussão sobre direitos autorais e impactos na ciência e tecnologia. Alinha-se a dois movimentos internacionais – Open Archives Initiative e Open Access – que, em trabalho conjunto, asseguram acesso gratuito, livre e irrestrito à informação eletrônica. Focaliza-se a análise de RI em 27 instituições federais de ensino superior (IFES) brasileiras, cujas pesquisas devem ser disponibilizadas à sociedade, porquanto financiadas com recursos públicos. Os objetivos específicos referem-se à (ao): (1) revisão conceitual, objetivos e funções, evolução e tipologia dos repositórios; (2) análise de operacionalização, funcionamento, conteúdos e atualização dos RI; (3) confronto entre teoria e prática dos RI; (4) cotejo entre as regiões brasileiras no que concerne ao estágio dos repositórios; (5) constatação da relevância do RI como instrumento de política de informação das IFES. Para consecução do proposto, recorre-se à pesquisa bibliográfica e à pesquisa descritiva, que permitem delinear tanto o avanço efetivo dos RI no país como os impactos deles advindos. Afinal, os RI não constituem medida de fácil adoção. Além dos embates frente à reação dos editores comerciais, há entraves vinculados aos aspectos legais, a mecanismos de legitimação e de preservação digital e até mesmo a padrões para a citação de documentos eletrônicos em novas investigações. Ademais, qualquer que seja a região brasileira, ao tempo em que os resultados confirmam a importância das coleções institucionais para as universidades, apontam flagrante diversidade de procedimentos e de estágio de desenvolvimento entre os RI, justificando a apresentação de recomendações.

This document is associated with the short-term research internship the author have carried out at Chemnitz University of Technology in order to implement the control of an Isolated Wind Energy Conversion System. This internship has been developed  in the laboratory of the Department of Electrical Machines and Drives, belonging to the Faculty of Electrical Engineering, under the supervision of Professor Wilfried Hofmann.

In occasione dell'avvio del nuovo repository della ricerca di Ateneo (DSpace CRIS) il Centro di Ateneo per le Biblioteche (CAB) dell'Università della Tuscia organizza una giornata di studi su piattaforma Zoom destinata alla formazione di docenti, personale TA, studenti e dottorandi.

REGISTRAZIONE INTEGRALE DELLA GIORNATA:

https://www.youtube.com/watch?v=gT-szJM-n38&t=21552s

The creation of Digital Institutional Repositories for knowledge sharing and management in Academic Institutions in a developing country like India is a growing requirement. The paper briefly describes a study conducted to determine the need of an Institutional Repository and implementation using Open Source Digital Repository software, DSpace at a Management Institution in India to enable knowledge sharing.

Phase detection is an integral component of any grid-connected, renewable-energy inverter and errors in the phase detector can degrade inverter control performance. To reduce these errors, an improved phase detector based on the synchronous-reference frame phase-locked loop is developed and demonstrated. This method is especially useful in weak three-phase variable-frequency systems, where fast and robust phase detection is important to inverter synchronization, but may be more difficult to achieve due to the varying frequency. The original SRF-PLL must trade off noise rejection with fast tracking capabilities, but by modifying the SRF-PLL to include a feed-forward dynamic center frequency, it is shown that both noise rejection and fast tracking can be achieved. The proposed modification to the SRF-PLL is demonstrated in hardware using dSPACE and a DC-sourced voltage source inverter paralleled to a variable-speed synchronous generator. The reductions in phase error are evaluated based on the reactive power injected by the inverter.

The Brazilian flora, due the continental characteristics of the country, has revealed the interest of many researchers since the Brazilian discovery. It presents distinct biomes that feature various endemic specimens. Thus, the units of conservation and botanical gardens have shown an important role in the search, dissemination and cataloging new species, preservation of endangered species, among others benefits. In this context, the Brasilia Botanical Garden becomes a reference in regard to the Cerrado Biome, mainly by actions on the sense of the biome preservation, research and education of the community, in addition to maintaining a herbarium with a significant collection. The Braśılia Botanical Garden and the Brazilian Institute for Information in Science and Technology has been developing a project to implement a repository for the purpose of the preservation and dissemination of information concerning the herbarium collection. With that offering a system with many facilities i...

With the development of wind power generation in recent years, several studies have dealt with the active and reactive power control of wind power systems, along with the quality of energy produced and the connection to distribution networks. In this context, this research proposes a new contribution to the field. The major objective of this work is the development of a nonlinear adaptive backstepping control technique applied to a DFIG based wind system and an optimization technique that uses the rooted tree optimization (RTO) algorithm. The backstepping control strategy is based on the Lyapunov nonlinear technique to guarantee the stability of the system. It is applied to the two converters (i.e., machine and network sides) and subsequently improved with estimators to make the proposed system robust to parametric variation. The RTO technique is based on monitoring the behavior of the underlying foundation of trees in search of underground water in accordance with the level of unde...

This presentation will address WSU Libraries' implementation of external programming to enhance workflow in its institutional Repository, SOAR (Shocker Open Access Repository). It will discuss several cases including the batch import of archeology image collection, Graduate Research and Scholarly Papers, and some herbarium samples. It will describe the add-on code to facilitate DSpace batch import procedure and cover the processes involved, such as metadata preparation in Excel, program installation, program customization, metadata transformation, and data batch upload to the DSpace server. Each generated Submission Information Package includes a Dublin Core XML record, corresponding images and files, and a content list file. Batch processing can streamline and enhance the workflow and it is an important step in the development of SOAR. It can be applied to many other projects in the future.

Presented at the Kansas Library 2010 Conference, Wichita, KS, April 8, 2010.

El artículo presenta los principales resultados del proyecto de investigación científico-tecnológica "Hacia el desarrollo y utilización de Repositorios de Acceso Abierto para Objetos Digitales Educativos en el contexto de las universidades públicas de la región centro-este de Argentina". El objetivo de este proyecto interdisciplinario se centró en diseñar y proponer un primer modelo teórico, metodológico y tecnológico de carácter experimental de Repositorios Institucionales de Acceso Abierto para Objetos Digitales Educativos. En atención al marco teórico y metodológico del Dispositivo Hipermedial Dinámico, se adoptó un enfoque socio-tecnológico. Por lo tanto, se implementaron instrumentos y técnicas metodológicas cualitativas y de la Ingeniería del Software. A partir de datos diagnósticos sobre problemáticas de usabilidad de DSpace y en atención a las necesidades y prácticas de publicación en acceso abierto de la comunidad académica regional, se desarrolla la propuesta de un Primer Prototipo Experimental para Objetos Digitales Educativos con tecnología DSpace. Se explicitan las opciones de diseño en cuanto a la organización interna, la visibilidad y la usabilidad del prototipo. Respecto de la organización interna, se predeterminaron 12 colecciones de diversos tipos de Objetos Digitales Educativos. Se contempló la  definición de campos de metadatos obligatorios y optativos para cada colección combinando los estándares de metadatos Dublin Core y Learning Object Metadata. Sobre la usabilidad, se presentan las mejoras y evaluaciones del prototipo realizadas por académicos de las universidades participantes. Dichas evaluaciones muestran una mejora en las condiciones de autoarchivo y la posibilidad de avanzar hacia modelos de publicación más eficientes, integradores y abiertos.

The paper shows the main result of the scientific-technological investigation project “Towards the development and the use of Institutional Repositories of Open Access for Educational Digital Objects in the context of public universities belonging to the mid-east area of Argentina”. Its objective is to design and propose a prior theoretical, methodological and technological model, which is experimental, of Open Access Institutional Repositories for Educational Digital Objects. In view of the theoretical and methodological framework of Dynamic Hypermedial Device, a socio-technological approach was adopted. Therefore, qualitative and software engineering instruments and methodological techniques were implemented. Based on DSpace diagnostics data usability problems and viewing needs and publications practices in open access of the regional academic community, we develop a First Experimental Prototype for Educational Digital Objects with DSpace technology. Design options in terms of internal organization, visibility and usability of the prototype are explained. About the internal organization, 12 collections of various types of Educational Digital Objects were predetermined. Observing the definition of required and optional fields of metadata for each collection combining Dublin Core and Learning Object Metadata metadata standards. About usability, First Experimental Prototype improvement and assessments conducted by academics from the participating universities are presented. These evaluations show an improvement in self-archiving conditions and the possibility to create publication models more efficient, inclusive and open.

This paper presents Photodentro LOR, the Greek National Learning Object Repository (LOR) for primary and secondary education. Photodentro LOR hosts open learning objects: small, semantically and functionally autonomous, reusable, open educational resources, tagged with educational metadata. It is targeted to teachers and pupils and it constitutes a core part of the Greek Ministry of Education digital infrastructure for educational content for schools. The paper also discusses issues to be taken into account when designing a National Learning Object Repository for schools, and provides an overview of the Photodentro LOR design and implementation, including semantic interoperability and metadata issues, technical decisions, and workflows for content population. The big picture of the infrastructure that includes the Photodentro National Educational Content Aggregator is also given.

This paper presents Photodentro LOR, the Greek National Learning Object Repository (LOR) for primary and secondary education. Photodentro LOR hosts open learning objects: small, semantically and functionally autonomous, reusable, open educational resources, tagged with educational metadata. It is targeted to teachers and pupils and it constitutes a core part of the Greek Ministry of Education digital infrastructure for educational content for schools. The paper also discusses issues to be taken into account when designing a National Learning Object Repository for schools, and provides an overview of the Photodentro LOR design and implementation, including semantic interoperability and metadata issues, technical decisions, and workflows for content population. The big picture of the infrastructure that includes the Photodentro National Educational Content Aggregator is also given.

Resumo Refletindo acerca do papel da Ciência da Informação na produção, armazenamento e disseminação da informação científica, essa pesquisa visou o estudo de repositórios institucionais (RIs) das universidades federais brasileiras. Para o funcionamento adequado deste ambiente digital, uma condição fundamental é que as formas de representação e descrição dos recursos informacionais estejam padronizadas, a fim de permitir a interoperabilidade entre sistemas informacionais. Os metadados são apontados como ferramenta para a representação da informação em ambientes informacionais. Questiona-se em que medida ocorre a construção padronizada da representação de metadados em RIs, que garanta o acesso e a recuperação dos recursos informacionais armazenados. Propõe-se um conjunto de diretrizes funcionais que poderão ser utilizados na representação da informação, podendo ser um ponto de partida para a reflexão da construção padronizada da representação da informação em repositórios institucionais. Palavras-chave: Representação da Informação. Metadados. Repositórios Institucionais. Modelagem de dados. 1 INTRODUÇÃO Considerando o contexto tecnológico o qual tem se estabelecido a Ciência da Informação, marcado pelo uso intensivo das Tecnologias da Informação e Comunicação (TIC), essa pesquisa explora o crescente avanço científico atual brasileiro, propondo o estudo dos repositórios institucionais das universidades federais brasileiras. Nesse contexto, os repositórios institucionais aparecem como ambientes informacionais provedores de dados digitais, destinados a gerenciar, reunir, armazenar e a disseminar a produção científica de uma instituição, promovendo assim a preservação da memória científica institucional. Para adequado funcionamento e utilização deste ambiente digital, uma condição fundamental é que as formas de representação e de descrição dos recursos informacionais estejam padronizadas, a fim de permitir a recuperação da informação e a interoperabilidade entre os sistemas informacionais. Para isso, conta-se com a utilização dos metadados como ferramenta para a otimização da representação da informação na Web. Dessa forma, questiona-se em que medida existe a preocupação com a construção e a representação padronizada de metadados em repositórios institucionais, a fim de garantir o acesso e a recuperação aos recursos informacionais armazenados em diversas instâncias.

En  este  artículo  me  propongo  historizar  la conformación de la colección folklórica de la Reserva  Patrimonial  del  Museo  de Antropología de la Universidad Nacional de Córdoba,  Argentina,  y,  particularmente,  la sección  de  musicología:  las  políticas institucionales que encauzaron estas prácticas de recolección y conformación del acervo, los criterios teóricos y metodológicos implicados en la conformación de la sección musicológica y la trayectoria de esta sección como parte del proceso  de  puesta  en  valor  de  la  misma. Partiendo  del  caso  del  Instituto  de Antropología, Lingüística y Folklore (IALF), y su análisis, se busca aportar a la reflexión sobre la relación entre folklore y nación en el periodo comprendido entre 1941 y 1956.

this paper presents an application of a waveletbased multi-resolution PID controller, for sensorless control of PM synchronous motor (PMSM). The procedure uses highfrequency injection. In this proposed controller, the wavelet package is used to decompose the error signal between actual and command signals into different frequency ranges. Consequently, a better estimation of position and speed is obtained. Moreover, a significant decrease in the noise caused by high-frequency injection can achieved. The performance of this system was evaluated in both simulation and laboratory experiments. The complete control system including the proposed wavelet controller was implemented in real time using the dSpace along with a laboratory scale 250-W, 10-pole PMSM. For demonstration of the advantages of the proposed controller, results obtained from this method were compared with the conventional PI controller.

Nowhere are the 'growing pains' of Very Large-scale Digital Libraries more pronounced than in collections containing multimedia data. Not only do such collections contain large numbers of items, but they also push the boundaries of scale in terms of storage space and processing expense. In this paper we explore how applying parallel processing opensource libraries and techniques-previously developed for and applied to textual content-can be of benefit to multimedia digital libraries. We provide a real-world use case of ingesting video into the ReplayMe! system, an extension of the Greenstone digital library software, that simultaneously records and ingests all of the free-to-air television channels available in New Zealand. Current ingest of video in ReplayMe! is intentionally light due to processing time constraints on the single processor architecture it was developed on. The work reported here investigates how this system can be scaled up to include the conversion of the broadcast video transport format to a suitable a streaming format (MP4) and to automatically extract content analysis based keyframes, while still performing within real-time. By applying parallel processing, and utilizing a cluster of sixteen desktop computers, the paper shows how this processing time can be significantly reduced compared to the equivalent computation if conducted serially. We then generalize the work, and show how the same basic techniques can be applied to other common digital library software such as DSpace to provide similar advantages when dealing with processor intensive content.

Space complexity is the class of Computational complexity which deals which deals with the required space by the Turing machines while working on the input received through the input tap. Actual space complexity is combination of two spaces, input tap space and working tap space. We want to minimize the total space required by the Turing machine as much as possible. In the paper we are dealing with the two classes of the space complexity, deterministic and non deterministic space occupied by the Turing machines. The aim of this paper is to provide Basic knowledge about the space complexity.

The paper discusses the Open Source Software in digital preservation for digital repository and preservation system. The paper highlights the need and features of Open Source Software in Digital Preservation with the successful adoption of open source application for library and information management system in this global digital information environment. The paper also discusses some of the important Initiatives of Digital Preservation and Repository System using Open Source Software in India.