206 research outputs found
Assessment of Self-Archiving in Institutional Repositories: Depositorship and Full-Text Availability
No full textThis research evaluates the success of open access self-archiving in several well-known institutional repositories. Two assessment factors have been applied to examine the current practice of self-archiving: depositorship and the availability of full text. This research discovers that the rate of author self-archiving is low and that the majority of documents have been deposited by a librarian or administrative staff. Similarly, the rate of full-text availability is relatively low, except for Australian repositories. By identifying different practices of self-archiving, repository managers can create new strategies for the operation of their repositories and the development of archiving policies
Factors to Assess Self-Archiving in Institutional Repositories
No full textThis paper proposes a group of factors that may be used to assess the success of open access self-archiving. It concentrates on self-archiving in institutional repositories. The authors emphasize the importance of examining content materials, particularly the availability of full text versus abstracts and the deposits archived by authors versus by others.Peer reviewe
Competences and responsibilities of social science data librarians: an analysis of job descriptions
No full textThis study examines job announcements for social science data librarians and professionals to identify trends in the profession. A collection of 167 job postings in 2005–2012 from the International Association for Social Science Information Services &Technology website was analyzed on the frequencies of term occurrence and co-occurrence in job qualifications and responsibilities. The study verifies that employers valued non-technical skills as heavily as technical skills, and detects dissimilar emphases of data activities for data librarians and non-librarian professionals: the former on data discovery and collection, and the latter on data analysis and preservation. An increasing requirement of data management planning was also found for data librarians.Peer reviewe
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Personal name identification in the practices of digital repositories
No full textThis paper finds that the variations of authors' names have negatively affected the retrieval capability of digital repositories. Two possible solutions include using composite identifiers that combine author name, publication date, and author affiliation, and also asking authors to input the variants of their name, if any, at the time of depositing articles
The temporal and spatial fluctuation of the groundwater level along the Tarim Desert Highway
No full textIn this work, a groundwater monitor section along the Tarim Desert Highway was set up, and the groundwater level data were recorded. The temporal and spatial fluctuations of the groundwater level were analyzed based on the groundwater level measurements, hydrologic data, the groundwater/surface water interconversion theory and the groundwater dynamics. The spatial distribution of groundwater is mostly affected by sand dune height and landform variation. The four primary temporal influence factors of groundwater level can be ordered in decreasing significance as: shelterbelt pumping > vertical leakage > river flow change > runoff replenishment. The runoff replenishment has the biggest influence range, and the shelterbelt pumping has the smallest influence range. The groundwater level fluctuates annually in a natural pattern
Kinematic Analysis and Simulation of a Cross Axis of Single Spider Universal Joint
No full textThe kinematic analysis of a single spider universal joint is carried out,by using mathematical vector method,the transfer movement relationship of a single spider universal joint and the cross axis plane normal trajectory equation are obtained. By using the Solid Works Motion software,the kinematic trajectory of a single spider universal joint cross axis is simulated,comparing the simulated wave chart with the calculated theoretical equation,the correctness of the theoretical analysis results is verified,a theoretical basis for the single spider universal joint movement optimized design is provided. At the same time in space,a theoretical reference for the spatial arrangement of single spider universal joint steering system is provided
Study on the Influence Mechanism and Adjustment Path of Climate Risk on China’s High-Quality Economic Development
No full textThe quantitative analysis of the economic impact of climate risk is an effective means of understanding and taking reasonable preventative steps in relation to the climate-related economic crisis. This paper takes panel data from China’s 31 provinces for 2009 to 2021, combined with a regulating intermediary effect model, to determine the climate risk faced in China and its influence mechanism on high-quality economic development, in an attempt to determine how to adjust the path. The results show that, first, when using a different regression model, we see that climate risks pose a significantly inhibiting effect on high-quality economic development in China. Secondly, when the climate risk increases by 1%, high-quality economic development drops by 0.0115%. When the climate risk increases by 1%, this leads to a 14.9672% increase in the likelihood of natural disasters, causing high-quality economic development to be indirectly reduced by 0.1300%. Thirdly, green innovation has a multidimensional effect; it can both directly and indirectly impact the negative effects of inhibition, and indirect adjustment has a greater effect than direct adjustment. Such regulation has a greater effect on the input than on the output. Therefore, we should seek to more accurately understand the dangers of climate risk, effectively improve the five aspects of development, and strengthen the input of green innovation and thus the output of high-quality economic development in China
Ldentification of Perkinsus-like parasite in Manila clam;Ruditapes philippinarum using DNA molecular marker at ITS region
No full textCase studies of online control of energy storage system
No full textIn the Laboratory for Clean Energy Research (LaCER), a 5kVA bi-directional Lithium-ion energy storage battery system has been installed with the associated battery management software and a DC to three-phase 0.4kV inverter. The state of charge, abbreviated as “SOC”, is the essential battery parameter monitored in system to indicate the remained capacity of the battery pack. Especially in case of BMS (Battery Management System) implementation of balancing circuits, SOC will indicate when to charge or discharge the batteries connected in series. Therefore, an effective and accurate SOC estimating method would be very necessary to be proposed and developed.
The objective of this project is to develop a suitable SOC estimating method that can integrate with the current BMS to enhance the accuracy of SOC measuring. With the new methodology developed, the author will be required to design and implement case studies on BMS, which can take advantage of electricity price differences throughout a day by buying electricity during the low tariff period and selling electricity during the high tariff period.Bachelor of Engineerin
THE REFLECTIVITY OF THE MIXED CRYSTAL <font>AB</font><sub>1-x</sub><font>C</font><sub>x</sub>
No full text The properties of long wavelength optical phonons in mixed crystals AB 1-x C x is discussed by a model similar to Modified Random Element Isodisplacement (MREI). Using this method we investigate the frequencies, the dielectric functions, and the reflectivity of several mixed crystals. It is found that this model can be applied to the one-mode behavior, the two-mode behavior, and that of the third category. So the model provides a possible way to understand the optical character of the ternary mixed crystal. Based on it, we can discuss other problems similar to electron–phonon interaction and so on. </jats:p
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