1,721,010 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
A CONCEPTUAL ENERGY DESIGN FOR O’HARE INTERNATIONAL AIRPORT USING WIND AND BUILDING INTEGRATED PHOTOVOLTAIC SYSTEMS
No full textCommercial buildings account for approximately 18% of the total energy use in the United States, although only 7% of this consumption is currently supplied by renewable energy sources, including hydropower, biomass, geothermal, wind, and solar heat and photovoltaics. This is a low percentage and it is imperative to explore potentials for using a combination of renewable energy systems to increase this percentage, particularly for large establishments with large land areas and existing facilities that can support large amounts of renewable energy technologies, such as airports. O’Hare International Airport (ORD), located in Chicago (Illinois), has been selected for this research, with the main purpose of supplying the maximum possible amount of the airport energy demand by a proposed wind and solar hybrid system. The first part of this research includes a wind energy system design performed using wind speed data at ORD locations and determining a suitable number and type of turbines loacted within the airport premises. Special considerations are made for for height, turbine locations, and prevailing wind directions. The second part of the study involves design of solar photovoltaic panel arrays both for existing terminals as well as for a proposed new terminal. The design of the arrays includes considerations for optimal energy production with varying installation angles as well as the number of sunny days useful for sun energy harvesting. Finally, the total electricity output from the hybrid system is estimated and compared with the total and monthly electricity demand at ORD. Results show that a considerable percentage of the electricity demand at ORD can be obtained through the wind and solar hybrid system. Specifically, if the airport authority decides on a new terminal, the integration of PV panels with the new terminal structure can be optimized such that the pecentage of total electricty demand at ORD could be met by more than 50% on-site renewable energy sources. An analysis of potential return in investment reveals that economically such a design is viable and can result in sizeable annual savings over a 20-year investment period.M.S. in Civil, Architectural and Environmental Engineering, December 201
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
OPEN SOURCE BUILDING SCIENCE SENSORS (OSBSS) : A LOW-COST ARDUINO-BASED PLATFORM FOR LONG-TERM DATA COLLECTION IN INDOOR ENVIRONMENTS
No full textAccurate characterization of building characteristics that influence indoor air quality (IAQ), thermal comfort, and energy consumption in buildings is often limited to the use of proprietary hardware and software, which can adversely affect both functionality and costs. In response, the Open Source Building Science Sensors (OSBSS) project was launched to design and develop a network of inexpensive open source devices based on the Arduino platform for measuring and recording long-term indoor environmental and building operational data. The project includes a variety of sensors and dataloggers designed to assess energy, comfort, and air quality in buildings, including air and surface temperatures, air relative humidity, surface water activity, human occupancy and activity, light intensity, CO2, and a generic datalogger that can log data from other sensors such as HVAC system pressure sensors for determining system airflow rates or runtimes. The development, calibration, and performance of the sensor network is being documented in its entirety and made available freely online along with detailed tutorials designed to allow other researchers to incorporate the sensors in both ongoing and future investigations of energy, air quality, and comfort in the built environment. The OSBSS network of devices will ultimately allow for more flexibility in synchronizing a large number of measurements with high spatial and temporal resolution in a more cost effective manner for use in research projects and building automation and control.M.S. in Civil, Architectural and Environmental Engineering, May 201
ADVANCING OPEN-SOURCE TOOLS FOR INDOOR ENVIRONMENTAL MONITORING AND BUILDING SYSTEMS CONTROLS USING WIRELESS SENSOR NETWORKS
No full textIncorporating data monitoring and visualization tools in buildings can provide a glimpse into their energy use, thermal performance, daily operation, and maintenance requirements. However, buildings have traditionally been monitored using hardware and software that are expensive, proprietary, and often limited in terms of ease of use and flexibility. Many existing buildings remain unmonitored or poorly monitored, leaving many opportunities for energy savings and improving indoor environmental conditions unaddressed. To this end, the goal of this research is to develop and demonstrate an open-source hardware and software platform for monitoring and controlling the performance of buildings and their systems, called Elemental. It is designed to provide real-time data on indoor environmental quality, energy usage, heating, ventilating, and air-conditioning (HVAC) operation, and other factors to its users, and provide easy development of building controls. It combines: (i) custom low power printed circuit boards (PCBs) with RF transceivers for wireless sensors, control nodes, and USB gateway, (ii) a Raspberry Pi with custom firmware acting as a backhaul, and (iii) custom software applications that manage data storage, device configuration and interface for querying and visualizing the data in real-time. The platform is built around the idea of a private, secure, and open technology for the built environment. Among its many applications, the platform allows occupants to investigate anomalies in energy usage, environmental quality, and thermal performance. It also includes multiple frontends to view and analyze building activity data, which can be used directly in building controls. This proposal describes the development process of the hardware and software used in the Elemental platform along with three distinct applications including: (1) deployment in a research lab for long-term data collection and automated analysis, (2) use as a full-home energy and environmental monitoring solution, and (3) building heating system automation at the room-level with the development and deployment of a custom radiator control. Through these applications, this work demonstrates that the platform allows easy and virtually unlimited datalogging, monitoring, and analysis of real-time sensor data with low setup costs. Low-power sensor nodes placed in abundance in a building can also provide precise and immediate fault-detection, allowing for tuning equipment for more efficient operation and faster maintenance during the lifetime of the building
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