130,916 research outputs found
Anvari, a master of obscene verse
No full textL’articolo descrive e analizza l’attitudine polemica di Anvari nel contesto dell’attività poetica che si svolgeva a corte. Vengono tradotti numerosi versi del poeta rivolti criticamente ai suoi interlocutori e si fornisce il relativo quadro critico e letterario
Developing an off-grid biomass gasification cogeneration system for Moroccan olive oil mills: Simulation, experimental validation, and 3E analysis
No full textApplying biomass gasification in combined heat and power systems (BCHPs) at olive oil mills is a sustainable
energy solution, which allows effectively managing waste, mitigating greenhouse gas emissions, and optimizing
investments by reducing biomass transportation costs. Morocco, a major global olive oil producer, has abundant
olive groves and mills generating substantial amounts of waste. However, limited research exists on utilizing
olive oil waste for BCHPs in Moroccan mills. This article proposes the construction of a BCHP in DARA mill,
Morocco, including studying residues from olive oil production, simulating the BCHP, validating the gasification
process through experiments, conducting energy, exergy and exergoeconomic analyses, and performing the
parametric study on system performance. In the experimental data, the equivalence ratio for olive cake and olive
pruning was obtained at 0.3 and 0.32, which agrees well with the simulated model by 0.31 and 0.315. The
energy analysis revealed that 30% of input energy is converted to useful energy, while 70% is wasted, resulting in
a 42% efficiency. From the exergy analysis, it was found that only 18% of the entered exergy is utilized as useful
exergy, while 68% is destroyed and 12% is lost, resulting in 19% efficiency Investment expenses contribute to
87% of system costs, with cost of exergy destruction accounting for the remaining 13%. The engine, gasifier, and
cleaning unit incur the highest exergy destruction and associated costs. Increasing both the air–fuel ratio (from
1.7 to 2) and water–fuel ratio (from 0.001 to 0.25) simultaneously leads to a 21% decrease in system exergy
efficiency, a 3% increase in investment costs, and a 10% increase in costs related to exergy destruction
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
MSO903474 Supplemental material - Supplemental material for High-dose vitamin D supplementation in multiple sclerosis – results from the randomized EVIDIMS (efficacy of vitamin D supplementation in multiple sclerosis) trial
No full textSupplemental material, MSO903474 Supplemental material for High-dose vitamin D supplementation in multiple sclerosis – results from the randomized EVIDIMS (efficacy of vitamin D supplementation in multiple sclerosis) trial by Jan Dörr Priscilla Bäcker-Koduah Klaus-Dieter Wernecke Elke Becker Frank Hoffmann Jürgen Faiss Bernd Brockmeier Olaf Hoffmann Kerstin Anvari Jens Wuerfel Sophie K Piper Judith Bellmann-Strobl Alexander U Brandt Friedemann Paul in Multiple Sclerosis Journal—Experimental, Translational and Clinical</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
The Impact of E-commerce and R&D on Economic Development in Some Selected Countries
No full textAbstractThis paper investigated the impact of e-commerce and R&D and two other variables on economy development in 21 selected countries. This study used panel data technique with Generalized Least Square Regression (GLS) method during the period of 2005 to 2013. The results showed that e-commerce and R&D had a positive and significant impact on GDP (Gross Domestic Product) per capita based on purchasing power parity, with e-commerce having a stronger development-enhancing effect in comparison to R&D. Health expenditure and government size as other dependent variables also had a positive influence on GDP per capita, which could be effective in improving and growing the economy
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Potential of wireless power transfer for dynamic charging of electric vehicles
No full textWireless Power Transfer (WPT) offers a viable means of charging Electric Vehicles (EV)’s whilst in a dynamic state (DWPT), mitigating issues concerning vehicle range, the size of on-board energy storage and the network distribution of static based charging systems. Such Charge While Driving (CWD) technology has the capability to accelerate EV market penetration through increasing user convenience, reducing EV costs and increasing driving range indefinitely, dependent upon sufficient charging infrastructure. This paper reviews current traction battery technologies, conductive and inductive charging processes, influential parameters specific to the dynamic charging state as well as highlighting notable work undertaken within the field of WPT charging systems. DWPT system requirements, specific to the driver, vehicle and infrastructure interaction environment are summarised and international standards highlighted in order to acknowledge the work that must be done within this area. It is important to recognise that the gap is not currently technological; instead, it is an implementation issue. Without the necessary standardisation, system architectures cannot be developed and implemented without fear of interoperability issues between countries or indeed systems. For successful deployment, the technologies impact should be maximised with the minimum quantity of infrastructure and technology use, deployment scenarios and locations are discussed that have the potential to bring this to fruition
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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