Spelling suggestions: "subject:"repositorio""
1 |
Laboratory characterization of some Permian rocks for the design of underground openingsAhmadi, Morteza January 1992 (has links)
No description available.
|
2 |
Studies on selected organic-metal interactions of importance in the environmentMason, Ian January 1995 (has links)
This research project investigated the interaction between natural organics acids and selected metal ions. The aim of the project was to provide quantitative data on the speciation of metal ions when placed in systems containing natural organic acids. It was envisaged that such data will assist in the risk assessment of the Drigg low level waste site in Cumbria. The formation and complexing ability of these natural organic acids is discussed and the classing of these acids into high molecular weight organic acids and low molecular weight organic acids. Initial investigations used a potentiometric technique to study the interaction between nickel and europium and selected low molecular weight organic acids which were thought to occur in significant concentrations in soils and groundwaters. These experiments confirmed existing critically assessed literature values, and provided an experimental methodology for further 'in-house' measurement of such values. In addition, studies were also performed on systems containing two competing organic acids. Studies of such systems showed no synergistic effect and that they could be modelled using individual stability constants. A comprehensive investigation was performed on the interaction of nickel and europium with humic acid. High Performance Size Exclusion Chromatography (HPSEC) was assessed for its applicability to study such systems and was found to be suitable. Stability constants were determined for europium and nickel with humic acid. All data was modelled using MINTEQA2, a geochemical speciation code. Further work on these systems was carried out by a column ion exchange technique which confirmed the HPSEC data. A comparison was then carried out between batch and column exchange with the conclusion that column gave lower metal bound to the humic at high concentrations due to competition from the resin. HPSEC was used to investigate systems of low molecular weight organic acids with humic acids. In these systems no evidence for mixed complexes was found and that there was good agreement between experimental data and model predictions. The role of humic acid at alkaline pH was also investigated. It was found that humic acid showed enhanced complexation with europium and that this was attributable to phenolic groups on the humic molecule. In conclusion, results have been generated which provide data for a number of important reactions that occur in the environment.
|
3 |
Digital preservation activities and attitudes in American and Canadian academic librariesMantooth, Jennifer M. January 1900 (has links) (PDF)
Thesis (M.Sc.)--University of North Carolina, 2009. / Title from pdf file main screen (viewed on May 26, 2010). A Master's paper submitted to the faculty of the School of Information and Library Science of the University of North Carolina at Chapel Hill in partial fulfillment of the requirements for the degree of Master of Science in Information Science, Chapel Hill, North Carolina. "April 2009." Includes bibliographical references.
|
4 |
Digital preservation activities and attitudes in American and Canadian academic librariesMantooth, Jennifer M. January 1900 (has links) (PDF)
Thesis (M.Sc.)--University of North Carolina, 2009. / Title from pdf file main screen (viewed on May 26, 2010). A Master's paper submitted to the faculty of the School of Information and Library Science of the University of North Carolina at Chapel Hill in partial fulfillment of the requirements for the degree of Master of Science in Information Science, Chapel Hill, North Carolina. "April 2009." Includes bibliographical references.
|
5 |
“Dspace @ SDMCET: A Real Treasure of Engineering Innovations”Bankapur (V M) 09 1900 (has links)
Conferencia realizado del 12 al 14 de setiembre en Lima, Peru del 2012 en el marco del 15º Simposio Internacional de Tesis y Disertaciones Electrónicas (ETD 2012). Evento aupiciado por la Universidad Nacional Mayor de San Marcos (UNMSM) y la Universidad Peruana de Ciencias Aplicadas (UPC). / Objectives: Bringing 33 year of Students Projects one common platform: Institutional
Repositories using Dspace software.
Methods: Open Source Software -Dspace software is being used for this purpose by
converting projects into e-formats.
Presentation: 20 minutes:
Results: it is a continues process the database of project will be an asset to the institution.
SDMCET is an autonomous institution which has more than 33 years of history in
engineering education in India. The enormous development in engineering education has
kindled the growth of technical innovations of young minds. These young minds are “tech
savvy” and bring in new ideas in the form of the projects. The knowledge centre has built
Institutional Repository using open source software, Dspace. This is popularly known as
“Dspace @ sdmcet.” Today there are more than 3000 students who are perusing their
engineering education. The history of database has thirty years of data of projects. These
student projects form a very important “innovativeness” of technical explorations which
add value to institution which is part of the course. This project is supported by the
institution and is a continuous process of archiving and preservation. The plans and
implementation is being described in this paper.
|
6 |
Electronic Theses and Dissertations in Peru: A Twelve-Year Experience and Its connections to “LA REFERENCIA”, a Latin American RepositoryHuaroto, Libio, Recavarren, Isabel 18 November 2015 (has links)
In June 2004, University of San Marcos (UNMSM, Lima, Peru) launched the first portal providing access to electronic theses and dissertations in Peru using the Cybertesis platform. This initiative marked the beginning of open access theses repositories in the country. It was followed by other higher education and research institutions, both public and private. Four years later, the Peruvian Network for Digital Theses was established. It was officially closed in December 2014. In June 2010, Red CLARA launched LA REFERENCIA, a project funded by Banco Interamericano de Desarrollo (BID). Eight regional countries were part of this initiative: Argentina, Brazil, Chile, Colombia, Ecuador, Mexico, Peru and Venezuela. El Salvador joined it recently. The aim of the project was to design a strategy for and an agreed framework on interoperability and scientific production management for Latin America. As of today, country members have developed national networks, each with its respective national repository portal. Repositories contain three (3) basic types of collections: master’s theses and doctoral dissertations; journal articles; and research projects. Participant institutions in LA REFERFENCIA are SNRD (Argentina), IBICT (Brazil), RRAAE (Ecuador), COLCIENCIAS, MEN, RENATA (Colombia), CONICYT, (Chile), CBUES (El Salvador), CONACYT, CUDI (México), RENARE (Peru), and CENIT, REACCIUN (Venezuela). Two events furthering open access to scientific research have been of key importance in Peru in the last two years; the first being the enacting of statute 30035 and its Regulations, by which the National Repository for Open Access Science and Technology was created. According to this legislation, all projects funded with public money will be openly accessible. The second event was the implementation of ALICIA (http://alicia.concytec.gob.pe), the aforementioned National Repository for Open Access Science and Technology. ALICIA is made up of 33 repositories – 13 of them are theses and dissertation repositories; 20 are institutional ones. ALICIA contains 34,567 registration records: 9,297 of them correspond to master’s theses, and 1,906 to doctoral dissertations (ALICIA has an additional 25,270 professional theses submitted by students after completing their undergraduate studies in order to obtain a professional license granted by the Peruvian state). LA REFERENCIA offers access to 88,599 doctoral dissertations and 202,798 master’s theses. Peruvian repositories for electronic theses and dissertations use DSpace, and have adopted the DRIVE 2.0 norms. Some institutions, like Universidad Peruana de Ciencias Aplicadas (UPC) have implemented Altmetrics indicators, showing social network activities connected to contents in theses, dissertations and journal articles.
|
7 |
Stewarding the Scholarly Record @ The University of ArizonaOxnam, Maliaca, Chapman, Kimberly, Frumkin, Jeremy 13 April 2015 (has links)
Project briefing presented at the CNI Spring 2015 Membership Meeting, April 13-14, 2015, Seattle, WA / The University of Arizona (UA) Libraries has an evolving strategy to steward the scholarly record of the institution. As a key component of this strategy the Libraries have a leadership role in implementing UA Vitae, a mandated online faculty activity reporting system with initial focus on supporting the faculty evaluation process. In partnership with the Office of the Provost and Campus Computing, the Libraries contribute expertise in support of this campus initiative. Leveraging the data from this effort to capture a more holistic view of the scholarly record provides opportunities for the Libraries to partner on approaches to utilizing, stewarding, and exposing the scholarly record. This presentation will describe the University and the Library’s evolving strategies in regard to defining and stewarding the scholarly record, our experiences with the build-out of the faculty activity reporting system, and next steps in bringing together information and systems that are transforming our University.
|
8 |
iSCSI performance over RDMA-enabled networkPallampati, Amarnath 07 1900 (has links)
With an increase in the amount of information being exchanged every day, there is a need for storage repositories and faster networks to retrieve data with a minimum amount of time delay. Keeping this in mind, inroads have been made in developing different types of storage network technologies including Direct Attached Storage (DAS), Network Attached Storage (NAS), and Storage Area Network (SAN). Developments have also been made in building faster and parallel Input/Output (I/O) peripheral interface systems such as the Small Computer System Interface (SCSI). With the help of SCSI high-speed bus systems that quickly transfer large amounts of data requested by the user have been made, which is a very important need in storage are networks. Internet SCSI (iSCSI) protocol is a Small Computer System Interface (SCSI) transport protocol developed by the Internet Engineering Task Force (IETF), which maps block-oriented storage data over Transmission Control Protocol/Internet Protocol (TCP/IP) networks. This iSCSI storage technology is a viable solution utilizing IP networks for low-cost implementation of managing storage networks. Unlike the file access mechanism provided by protocols such as Network File System (NFS), iSCSI implementation has a block access mechanism to provide better performance and throughput. Remote Direct Memory Access (RDMA) technology provided by Internet Wide Area RDMA Protocol (iWARP), which runs over TCP/IP networks provides efficient data transfers. RDMA protocol is primarily chosen because it efficiently uses storage I/O (Input/Output) systems by providing a Zero Copy transfer mechanism. Implementing iSCSI over RDMA-enabled network adapters exploits RDMA operations for efficient data transfers using the existing infrastructure. This thesis involves the implementation and performance evaluation of iSCSI over RDMA, a process that maps iSCSI This study analyzes, the performance of SAN storage devices, demonstrating that iSCSI over RDMA performs better than running only iSCSI. In addition, the low cost and ease with which an iSCSI over RDMA can be managed make it superior to iSCSI, considering the performance gained. The iSCSI target from iSCSI Enterprise Target (IET) installed in a Fedora Core 5 machine with a 2.6.16 kernel was used to evaluate the iSCSI. The Initiator, was built using a Fedora Core 5 source iSCSI Initiator in a Fedora Core 5 machine with a 2.6.16 kernel and Microsoft iSCSI Initiator in a Microsoft server 2003 machine [1] [2]. This research used RNICs developed by Ammasso Corporation, to directly place data into Initiator buffers using Zero Copy transfer. Hence, unnecessary multiple copying procedures are eliminated, there by memory bus utilization and improving performance, which definitely impacts the overall performance of a system when there is large amount of data being transferred as occurs with iSCSI. The iSCSI over RDMA protocol implementation gives high performance and low overhead for I/O storage. / Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Electrical and Computer Engineering. / "July 2006." / Includes bibliographic references (leaves 43-46)
|
9 |
The guise of deliberation : a rhetorical criticism of arguments in the Yucca Mountain site authorization controversy /Endres, Danielle. January 2005 (has links)
Thesis (Ph. D.)--University of Washington, 2005. / Vita. Includes bibliographical references (leaves 207-244).
|
10 |
Evaluation of the development and use of the institutional repository by staff and students at the University of Fort Hare in Eastern Cape, South AfricaKagoro, Kisemiire Christine January 2018 (has links)
This study sought to evaluate the development and use of Institutional Repository by staff and students at the University of Fort Hare (UFH) in Eastern Cape, South Africa. In this study, staff comprised of academic staff (lecturers) and library staff. The aim of this study was to investigate the development and use of Institutional Repository at UFH. To achieve the objectives, both qualitative and quantitative research methodologies were employed. Data was collected through questionnaires and face-to-face interviews. Purposive sampling technique was used to select the participants of the study. Qualitative data was analysed thematically while, quantitative data was analysed statically by help of SPSS software. The results showed that: library staff and management are aware and provide support for the development and use of the Institutional Repository at the UFH; awareness level of IR among lecturers and students is still low; the infrastructure available for the use of IR is not well developed; and lastly, library users which consist of students and academic staff face various barriers in the use and support of IR development. The study recommended for dynamic training, and marketing of IR through seminars and workshops should be started by expert affiliations and universities administration to advance the idea of IR among the University community. Low levels of awareness of the university repository, funding and shortage of library staff remains an issue and could be addressed by further investigating the effectiveness of different communication channels. It is pertinent that the findings of this study would be useful in various tertiary’s institutions of higher learning across the globe in order to embark on IR.
|
Page generated in 0.0708 seconds