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Journal articles on the topic 'Point source capture'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Henri, Christopher Vincent, Thomas Harter, and Efstathios Diamantopoulos. "On the conceptual complexity of non-point source management: impact of spatial variability." Hydrology and Earth System Sciences 24, no. 3 (2020): 1189–209. http://dx.doi.org/10.5194/hess-24-1189-2020.

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Abstract. Non-point source (NPS) pollution has degraded groundwater quality of unconsolidated sedimentary basins over many decades. Properly conceptualizing NPS pollution from the well scale to the regional scale leads to complex and expensive numerical models: key controlling factors of NPS pollution – recharge rate, leakage of pollutants, and soil and aquifer hydraulic properties – are spatially and, for recharge and pollutant leakage, temporally variable. This leads to high uncertainty in predicting well pollution. On the other hand, concentration levels of some key NPS contaminants (salini

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Hase, Nils, Scot M. Miller, Peter Maaß, Justus Notholt, Mathias Palm, and Thorsten Warneke. "Atmospheric inverse modeling via sparse reconstruction." Geoscientific Model Development 10, no. 10 (2017): 3695–713. http://dx.doi.org/10.5194/gmd-10-3695-2017.

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Abstract. Many applications in atmospheric science involve ill-posed inverse problems. A crucial component of many inverse problems is the proper formulation of a priori knowledge about the unknown parameters. In most cases, this knowledge is expressed as a Gaussian prior. This formulation often performs well at capturing smoothed, large-scale processes but is often ill equipped to capture localized structures like large point sources or localized hot spots. Over the last decade, scientists from a diverse array of applied mathematics and engineering fields have developed sparse reconstruction

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Coltherd, Jennifer C., Carys Morgan, Johanna Judge, Lesley A. Smith, and Michael R. Hutchings. "The effects of parasitism on recapture rates of wood mice (Apodemus sylvaticus)." Wildlife Research 37, no. 5 (2010): 413. http://dx.doi.org/10.1071/wr09159.

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Context. In studies of population dynamics, disease ecology and prevalence, point-sampling of data is a widely used sampling technique and capture–mark–recapture (CMR) is the most popular method of point sampling. Population estimates based on CMR are sensitive to deviations from the assumptions of the models such as equal catchability of all animals. Although consistent deviations from these assumptions can be accounted for in a robust statistical framework (e.g. identification of trap-shy animals), transient effects cannot be adequately incorporated in the statistical models and thus are exp

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Kuyper, Brett, Carl J. Palmer, Casper Labuschagne, and Chris J. C. Reason. "Atmospheric bromoform at Cape Point, South Africa: an initial fixed-point data set on the African continent." Atmospheric Chemistry and Physics 18, no. 8 (2018): 5785–97. http://dx.doi.org/10.5194/acp-18-5785-2018.

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Abstract. Bromoform mixing ratios in marine air were measured at Cape Point Global Atmospheric Watch Station, South Africa. This represents the first such bromoform data set recorded at this location. Manual daily measurements were made during a month-long field campaign (austral spring 2011) using a gas chromatograph-electron capture detector (GC-ECD) with a custom-built front end thermal desorption trap. The measured concentrations ranged between 4.4 and 64.6 (± 22.2 %) ppt with a mean of 24.8 ± 14.8 ppt. The highest mixing ratios recorded here occurred at, or shortly after, low tide. The di

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Handogo, Renanto. "Carbon Capture and Storage System Using Pinch Design Method." MATEC Web of Conferences 156 (2018): 03005. http://dx.doi.org/10.1051/matecconf/201815603005.

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Carbon capture and storage (CCS) have been investigated for a long time. It was intended to reduce carbon dioxide (CO2) in the atmosphere due to fossil fuel combustion in power generation and industrial processes. CO2 is captured and stored in various geological formations. The problem here is to match between source and sink such that alternative storage and unutilized storage capacities are minimum. Pinch Design Method as has been proposed by was used in this work. The concept is overwhelming that it can be used other than in the heat exchanger networks, such as in the water system design, m

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Wallace, Luke, Chris Bellman, Bryan Hally, Jaime Hernandez, Simon Jones, and Samuel Hillman. "Assessing the Ability of Image Based Point Clouds Captured from a UAV to Measure the Terrain in the Presence of Canopy Cover." Forests 10, no. 3 (2019): 284. http://dx.doi.org/10.3390/f10030284.

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Point clouds captured from Unmanned Aerial Systems are increasingly relied upon to provide information describing the structure of forests. The quality of the information derived from these point clouds is dependent on a range of variables, including the type and structure of the forest, weather conditions and flying parameters. A key requirement to achieve accurate estimates of height based metrics describing forest structure is a source of ground information. This study explores the availability and reliability of ground surface points available within point clouds captured in six forests of

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Goel, Alexander K., Walter Scott Campbell, and Richard Moldwin. "Structured Data Capture for Oncology." JCO Clinical Cancer Informatics, no. 5 (February 2021): 194–201. http://dx.doi.org/10.1200/cci.20.00103.

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Lack of interoperability is one of the greatest challenges facing healthcare informatics. Recent interoperability efforts have focused primarily on data transmission and generally ignore data capture standardization. Structured Data Capture (SDC) is an open-source technical framework that enables the capture and exchange of standardized and structured data in interoperable data entry forms (DEFs) at the point of care. Some of SDC’s primary use cases concern complex oncology data such as anatomic pathology, biomarkers, and clinical oncology data collection and reporting. Its interoperability go

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Aller, Raymond D. "Connectivity from Source to Action." Clinical Chemistry 47, no. 8 (2001): 1521–25. http://dx.doi.org/10.1093/clinchem/47.8.1521.

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Abstract Recent advances in electronic connectivity technology make conceivable almost instantaneous movement of data from the patient or laboratory to any other point in the healthcare system. The Internet, combined with new standards for wireless data transmission, has erased many of the previous physical barriers. Interface engines and formatting/content standards have facilitated the connection of multiple disparate systems in medicine. However, major logical barriers persist, and overcoming these barriers is key to achieving functional connectivity. These include fundamental issues of pat

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Nicklas, R. B., and S. C. Ward. "Elements of error correction in mitosis: microtubule capture, release, and tension." Journal of Cell Biology 126, no. 5 (1994): 1241–53. http://dx.doi.org/10.1083/jcb.126.5.1241.

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The correction of certain errors in mitosis requires capture and release: new kinetochore microtubules must be captured and old, misdirected ones must be released. We studied capture and release in living grasshopper spermatocytes. Capture is remarkably efficient over a broad range in the angle at which a microtubule encounters a kinetochore. However, capture is inefficient when kinetochores point directly away from the source of properly directed microtubules. Capture in that situation is required for correction of the most common error; microtubule-kinetochore encounters are improbable and c

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Rich, Timothy S. "Partisanship, Polling and Strategic Voting in East Asia: Evidence From an Experimental Web Survey." Journal of Asian and African Studies 53, no. 7 (2018): 1086–101. http://dx.doi.org/10.1177/0021909618763950.

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How does polling information, the polling source, and how it is presented influence strategic voting? Few studies capture at what point individuals become strategic voters or how polling information affects this behavior. Furthermore, strategic voting research in mixed member systems remains largely confined to aggregate district level analyses. This analysis employs an experimental survey implemented in South Korea, Taiwan, and Japan. The results suggest that reminding respondents of the margin of error encourages strategic behavior, while polls originating from partisan sources discourage de

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Rim, Guanhe, Tony G. Feric, Thomas Moore, and Ah‐Hyung Alissa Park. "Solvent Impregnated Polymers Loaded with Liquid‐Like Nanoparticle Organic Hybrid Materials for Enhanced Kinetics of Direct Air Capture and Point Source CO 2 Capture." Advanced Functional Materials 31, no. 21 (2021): 2010047. http://dx.doi.org/10.1002/adfm.202010047.

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Gondán, László, and Bence Kocsis. "High eccentricities and high masses characterize gravitational-wave captures in galactic nuclei as seen by Earth-based detectors." Monthly Notices of the Royal Astronomical Society 506, no. 2 (2021): 1665–96. http://dx.doi.org/10.1093/mnras/stab1722.

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ABSTRACT The emission of gravitational waves (GWs) during single–single close encounters in galactic nuclei (GNs) leads to the formation and rapid merger of highly eccentric stellar-mass black hole (BH) binaries. The distinct distribution of physical parameters makes it possible to statistically distinguish this source population from others. Previous studies determined the expected binary parameter distribution for this source population in single GNs. Here, we take into account the effects of dynamical friction, post-Newtonian corrections, and observational bias to determine the detected sou

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Hidayat, Arief, Shintaro Terabe, and Hideki Yaginuma. "TIME TRAVEL ESTIMATIONS USING MAC ADDRESSES OF BUS PASSENGERS: A POINT TO PATH-QGIS ANALYSIS." Geoplanning: Journal of Geomatics and Planning 5, no. 2 (2018): 259. http://dx.doi.org/10.14710/geoplanning.5.2.259-268.

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Currently, the development of WiFi is proliferating, especially in the field of transportation and smart cities. At the same time, WiFi is a low-cost technology, which offers a longer survey time and is able to support the Big Data era. This paper describes our study, which first uses a WiFi scanner to capture media access control (MAC) address data of bus passengers’ WiFi devices and then identifies each MAC address travel time to confirm the bus passengers. The MAC address is a unique ID for each device used such as mobile phones, smartphones, laptops, tablets, and other WiFi-enabled equipme

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Hidayat, Arief, Shintaro Terabe, and Hideki Yaginuma. "TIME TRAVEL ESTIMATIONS USING MAC ADDRESSES OF BUS PASSENGERS: A POINT TO PATH-QGIS ANALYSIS." Geoplanning: Journal of Geomatics and Planning 5, no. 2 (2018): 263. http://dx.doi.org/10.14710/geoplanning.5.2.263-272.

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Currently, the development of WiFi is proliferating, especially in the field of transportation and smart cities. At the same time, WiFi is a low-cost technology, which offers a longer survey time and is able to support the Big Data era. This paper describes our study, which first uses a WiFi scanner to capture media access control (MAC) address data of bus passengers’ WiFi devices and then identifies each MAC address travel time to confirm the bus passengers. The MAC address is a unique ID for each device used such as mobile phones, smartphones, laptops, tablets, and other WiFi-enabled equipme

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Li, Rui, Kristen D. Splinter, and Stefan Felder. "LIDAR Scanning as an Advanced Technology in Physical Hydraulic Modelling: The Stilling Basin Example." Remote Sensing 13, no. 18 (2021): 3599. http://dx.doi.org/10.3390/rs13183599.

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In hydraulic engineering, stilling basin design is traditionally carried out using physical models, conducting visual flow observations as well as point-source measurements of pressure, flow depth, and velocity at locations of design relevance. Point measurements often fail to capture the strongly varying three-dimensionality of the flows within the stilling basin that are important for the best possible design of the structure. This study introduced fixed scanning 2D LIDAR technology for laboratory-scale physical hydraulic modelling of stilling basins. The free-surface motions were successful

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Paul, Michael, Moshe Tessler, Shlomi Halfon, et al. "Study of Astrophysical s-Process Neutron Capture Reactions at the High-Intensity SARAF-LiLiT Neutron Source." EPJ Web of Conferences 232 (2020): 01003. http://dx.doi.org/10.1051/epjconf/202023201003.

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We report on recent experiments at the Soreq Applied Research Accelerator Facility Liquid-Lithium Target (SARAF-LiLiT) laboratory dedicated to the study of s-process neutron capture reactions. The kW-power proton beam at 1.92 MeV (1-2 mA) from SARAF Phase I yields high-intensity 30 keV quasi-Maxwellian neutrons (3-5×1010 n/s). The high neutron intensity enables Maxwellian averaged cross sections (MACS) measurements of low-abundance or radioactive targets. Neutron capture reactions on the important s-process branching points 147Pm and 171Tm were investigated by activation in the LiLiT neutron b

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Kharroubi, A., R. Hajji, R. Billen, and F. Poux. "CLASSIFICATION AND INTEGRATION OF MASSIVE 3D POINTS CLOUDS IN A VIRTUAL REALITY (VR) ENVIRONMENT." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W17 (November 29, 2019): 165–71. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w17-165-2019.

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Abstract. With the increasing volume of 3D applications using immersive technologies such as virtual, augmented and mixed reality, it is very interesting to create better ways to integrate unstructured 3D data such as point clouds as a source of data. Indeed, this can lead to an efficient workflow from 3D capture to 3D immersive environment creation without the need to derive 3D model, and lengthy optimization pipelines. In this paper, the main focus is on the direct classification and integration of massive 3D point clouds in a virtual reality (VR) environment. The emphasis is put on leveragi

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Shi, Quan Wei. "Research on the Application of Motion Capture of Kinect Technology in the Sport Training." Advanced Materials Research 926-930 (May 2014): 2714–17. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.2714.

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For the real-time motion capture in the sport training to analysis and study, this paper adopts Kinect technology and the development of sports training combined with. Kinect somatosensory the camera as the system core, the body movements, facial expressions capture system in development costs, operating results and the development efficiency has the optimal balance point. The purpose of this research is based on the OGRE graphics rendering engine, using 3DSMAX and open source code, the design and implementation of Kinect somatosensory camera and 3DSMAX, OGRE combination of game action, motion

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Ahn, Jaeyoon, Dongseop Lee, Shinin Han, Youngwook Jung, Sangwoo Park, and Hangseok Choi. "Experimental study on performance of sand filter layer to remove non-point source pollutants in rainwater." Water Supply 17, no. 6 (2017): 1748–63. http://dx.doi.org/10.2166/ws.2017.056.

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Abstract Clogging characteristics of conventional sand filter layers with different grain-size distributions were experimentally studied to estimate their filtration capacity to capture non-point source pollutants in an artificial rainwater reservoir. A series of laboratory-scale chamber tests was conducted for artificial urban runoff synthesized with non-point source pollutants collected from a real road in Seoul, Korea. In addition, an analytical filtration model for estimating removal of non-point source pollutants was adopted considering the clogging characteristics. To evaluate the perfor

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Willis, William B., William E. Eichinger, John H. Prueger, et al. "Lidar Method to Estimate Emission Rates from Extended Sources." Journal of Atmospheric and Oceanic Technology 34, no. 2 (2017): 335–45. http://dx.doi.org/10.1175/jtech-d-16-0130.1.

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AbstractPollutant emissions to the atmosphere commonly derive from nonpoint sources that are extended in space. Such sources may contain area, volume, line, or a combination of emission types. Currently, point measurements, often combined with models, are the primary means by which atmospheric emission rates are estimated from extended sources. Point measurement arrays often lack in spatial and temporal resolution and accuracy. In recent years, lidar has supplemented point measurements in agricultural research by sampling spatial ensembles nearly instantaneously. Here, a methodology using back

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Keeling, Ralph F., Andrew C. Manning, and Manvendra K. Dubey. "The atmospheric signature of carbon capture and storage." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 369, no. 1943 (2011): 2113–32. http://dx.doi.org/10.1098/rsta.2011.0016.

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Compared with other industrial processes, carbon capture and storage (CCS) will have an unusual impact on atmospheric composition by reducing the CO 2 released from fossil-fuel combustion plants, but not reducing the associated O 2 loss. CO 2 that leaks into the air from below-ground CCS sites will also be unusual in lacking the O 2 deficit normally associated with typical land CO 2 sources, such as from combustion or ecosystem exchanges. CCS may also produce distinct isotopic changes in atmospheric CO 2 . Using simple models and calculations, we estimate the impact of CCS or leakage on region

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Luo, Songting, Jianliang Qian, and Hongkai Zhao. "Higher-order schemes for 3D first-arrival traveltimes and amplitudes." GEOPHYSICS 77, no. 2 (2012): T47—T56. http://dx.doi.org/10.1190/geo2010-0363.1.

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In the geometrical-optics approximation for the Helmholtz equation with a point source, traveltimes and amplitudes have upwind singularities at the point source. Hence, both first-order and higher-order finite-difference solvers exhibit formally at most first-order convergence and relatively large errors. Such singularities can be factored out by factorizing traveltimes and amplitudes, where one factor is specified to capture the corresponding source singularity and the other factor is an unknown function smooth near the source. The resulting underlying unknown functions satisfy factored eikon

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K, Rachananjali, and Dr Srinu Naik R. "Design and Implementation of Modular Multilevel Converter for Photovoltaic Energy Generation Using Hill Search Method." International Journal of Engineering & Technology 7, no. 4.24 (2018): 38. http://dx.doi.org/10.14419/ijet.v7i4.24.21767.

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This article proposes an approach to capture solar energy utilizing double energy conversion from DC-DC and DC-AC. The present scenario requires lot of energy in order to meet the demand; the energy generation without hurting the environment is possible by means of non-conventional sources. In this article the source chosen is solar energy. To capture solar energy, solar cell is utilized. On capturing the solar energy the achieved result is in the form of DC. The DC link is established and it is boosted with the help of DC-DC converter and it is being fed as input to modular multilevel convert

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Ilyas, Muhammad, Agah D. Garnadi, and Sri Nurdiati. "Adaptive Mixed Finite Element Method for Elliptic Problems with Concentrated Source Terms." Indonesian Journal of Science and Technology 4, no. 2 (2019): 263–69. http://dx.doi.org/10.17509/ijost.v4i2.18183.

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An adaptive mixed finite element method using the Lagrange multiplier technique is used to solve elliptic problems with delta Dirac source terms. The problem arises in the use of Chow-Anderssen linear functional methodology to recover coefficients locally in parameter estimation of an elliptic equation from a point-wise measurement. In this article, we used a posterior error estimator based on averaging technique as refinement indicators to produce a cycle of mesh adaptation, which is experimentally shown to capture singularity phenomena. Our numerical results showed that the adaptive refineme

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Riddick, Stuart N., Sarah Connors, Andrew D. Robinson, et al. "Estimating the size of a methane emission point source at different scales: from local to landscape." Atmospheric Chemistry and Physics 17, no. 12 (2017): 7839–51. http://dx.doi.org/10.5194/acp-17-7839-2017.

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Abstract. High methane (CH4) mixing ratios (up to 4 ppm) have occurred sporadically at our measurement site in Haddenham, Cambridgeshire, since July 2012. Isotopic measurements and back trajectories show that the source is the Waterbeach Waste Management Park 7 km SE of Haddenham. To investigate this further, measurements were made on 30 June and 1 July 2015 at other locations nearer to the source. Landfill emissions have been estimated using three different approaches at different scales; near source using the WindTrax inversion dispersion model, middle distance using a Gaussian plume (GP) mo

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Wan, Zijing, Xiangjun Wang, Lei Yin, and Kai Zhou. "A Method of Free-Space Point-of-Regard Estimation Based on 3D Eye Model and Stereo Vision." Applied Sciences 8, no. 10 (2018): 1769. http://dx.doi.org/10.3390/app8101769.

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This paper proposes a 3D point-of-regard estimation method based on 3D eye model and a corresponding head-mounted gaze tracking device. Firstly, a head-mounted gaze tracking system is given. The gaze tracking device uses two pairs of stereo cameras to capture the left and right eye images, respectively, and then sets a pair of scene cameras to capture the scene images. Secondly, a 3D eye model and the calibration process are established. Common eye features are used to estimate the eye model parameters. Thirdly, a 3D point-of-regard estimation algorithm is proposed. Three main parts of this me

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Nakayama, H., K. Jurcakova, and H. Nagai. "Large-Eddy Simulation of plume dispersion within various actual urban areas." Advances in Science and Research 10, no. 1 (2013): 33–41. http://dx.doi.org/10.5194/asr-10-33-2013.

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Abstract. Plume dispersion of hazardous materials within urban area resulting from accidental or intentional releases is of great concern to public health. Many researchers have developed local-scale atmospheric dispersion models using building-resolving computational fluid dynamics. However, an important issue is encountered when determining a reasonable domain size of the computational model in order to capture concentration distribution patterns influenced by urban surface geometries. In this study, we carried out Large-Eddy Simulations (LES) of plume dispersion within various urban areas w

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HIGUERA, F. J., and P. D. WEIDMAN. "Natural convection far downstream of a heat source on a solid wall." Journal of Fluid Mechanics 361 (April 25, 1998): 25–39. http://dx.doi.org/10.1017/s0022112098008581.

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An analysis is presented of some steady natural convection flows at large distances downstream of point heat sources on solid walls. These asymptotic self-similar flows depend only on the Prandtl number of the fluid. The flow induced by a localized source on an adiabatic wall that is vertical or facing downwards is described numerically, whereas the flow due to a localized source on a wall facing upwards separates and leads to a self-similar plume. When the wall is held at the same temperature as the ambient fluid far from the source, the flow is described by a self-similar solution of the sec

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Laksono, Pranoto Budi. "A STUDY OF THE INFLUENCE OF 650 nm LASER INTERFERENCE ON VISIBLE LASER LIGHT COMMUNICATION SYSTEM." TEKNOKOM 4, no. 2 (2021): 60–65. http://dx.doi.org/10.31943/teknokom.v4i2.66.

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Visible Laser Light Communication System (VLLC) is a wireless communication system, using laser as the medium. In the data transfer process, it is possible to have optical interference where 2 laser beams coincide with one point on the reflector. Research on the effect of laser source interference has been carried out by several researchers including mitigation actions to reduce its effects. This experiment uses 2 optical distance sensors that produce a laser with a wavelength of 650 nm with a power <=4.1 mW and with the direction of the laser beam both of them cross each other. To determin

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Williams-Nguyen, Jessica, Irene Bueno, Jan M. Sargeant, André J. Nault, and Randall S. Singer. "What is the evidence that point sources of anthropogenic effluent increase antibiotic resistance in the environment? Protocol for a systematic review." Animal Health Research Reviews 17, no. 1 (2016): 9–15. http://dx.doi.org/10.1017/s1466252316000037.

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AbstractHerein we describe a protocol for a systematic review of the evidence on whether point sources of anthropogenic effluent are associated with an increase in antibiotic resistance in the adjacent environment. The review question was based on the Population, Exposure, Comparator, Outcome, Study Design (PECOS) framework as follows: Is the prevalence or concentration of antibiotic resistant bacteria or resistance genes (O) in soil, water, air or free-living wildlife (P) higher in close proximity to, or downstream from, known or suspected sources of anthropogenic effluent (E) compared to are

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Maalick, Z., H. Korhonen, H. Kokkola, T. Kühn, and S. Romakkaniemi. "Modelling artificial sea salt emission in large eddy simulations." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2031 (2014): 20140051. http://dx.doi.org/10.1098/rsta.2014.0051.

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We study the dispersion of sea salt particles from artificially injected sea spray at a cloud-resolving scale. Understanding of how different aerosol processes affect particle dispersion is crucial when designing emission sources for marine cloud brightening. Compared with previous studies, we include for the first time an explicit treatment of aerosol water, which takes into account condensation, evaporation and their effect on ambient temperature. This enables us to capture the negative buoyancy caused by water evaporation from aerosols. Additionally, we use a higher model resolution to capt

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Zhou, Xiaole, Haiqiang Lan, Ling Chen, et al. "An iterative factored topography-dependent eikonal solver for anisotropic media." GEOPHYSICS 86, no. 5 (2021): U121—U134. http://dx.doi.org/10.1190/geo2020-0662.1.

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Accurate and efficient eikonal solvers for heterogeneous media play an important role in many areas of seismology, such as seismic tomography, migration, and earthquake localization. Incorporating seismic anisotropy and complex topography remain a computational challenge for finite-difference eikonal solvers. In recent years, the topography-dependent eikonal equation (TDEE) has been proposed as an effective way to calculate seismic traveltimes for isotropic and anisotropic media with irregular topography. However, the Lax-Friedrichs sweeping method used in previous studies to approximate the v

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Li, Zhen, Zhuo Yin, Tao Tang, and Chunhai Gao. "Fault Diagnosis of Railway Point Machines Using the Locally Connected Autoencoder." Applied Sciences 9, no. 23 (2019): 5139. http://dx.doi.org/10.3390/app9235139.

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Data-driven fault diagnosis is considered a modern technique in Industry 4.0. In the area of urban rail transit, researchers focus on the fault diagnosis of railway point machines as failures of the point machine may cause serious accidents, such as the derailment of a train, leading to significant personnel and property loss. This paper presents a novel data-driven fault diagnosis scheme for railway point machines using current signals. Different from any handcrafted feature extraction approach, the proposed scheme employs a locally connected autoencoder to automatically capture high-order fe

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Roux, Gerhard. "STILL RECORDING AFRICAN MUSIC IN THE FIELD." African Music: Journal of the International Library of African Music 11, no. 1 (2018): 136–58. http://dx.doi.org/10.21504/amj.v11i1.2296.

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Field sound recordings are an indispensable source of data for ethnomusicologists. However, to my knowledge there are no standards or guidelines of how this data should be captured and managed. With the progress made in machine learning, it has become vital to record data in a way that also supports the retrieval of information about the music. This article describes a model developed for field recordings that aims to aid an objective data gathering process. This model, developed through an action research process that spanned multiple field recording sessions from 2009–2015, include recording

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Xu, Xin, and Rong Wu Wang. "A Study on Multi-Focus Images Fusion Technology Based on Fiber Natural Boundaries." Advanced Materials Research 900 (February 2014): 547–53. http://dx.doi.org/10.4028/www.scientific.net/amr.900.547.

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It is difficult to capture a completely clear image of nonwoven web which is thicker than the depth of field of a light microscope. This phenomenon will leads to the data loss and the test error. In this paper, a region-based image fusion algorithm based on fibers natural boundaries was proposed. First, the one-pixel-wide boundaries were extracted from the point-based image fusion process. Then, the image fusion regions were formed by the sharpness diffusion from the source points which have the highest sharpness at local gradient within the boundaries of fibers. Finally, a fused clear image o

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DOUJAK, F. E. "Can a Shore Crab See a Star?" Journal of Experimental Biology 116, no. 1 (1985): 385–93. http://dx.doi.org/10.1242/jeb.116.1.385.

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1. The absolute-intensity threshold of the optokinetic response in the crab Leptograpsus variegatus was measured using a moving continuous monochromatic point source. The results are compared to the photoreceptor responses of the same animal (Doujak, 1984), to determine the photoreceptor signal for the same behavioural threshold stimuli. 2. Optokinetic eye movements demonstrate that at the peak of spectral sensitivity (499 nm), the minimum intensity of light the animal can detect is 4.0 ± 1.5 × 105 photons cm−2 s−1 (mean ± S.D., N = 18) incident on the eye, which is equivalent to a photon flux

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Cheng, Bin, Aditya Padavagod Shiv Kumar, and Lingjuan Wang-Li. "Inverse AERMOD and SCIPUFF Dispersion Modeling for Farm-Level PM10 Emission Rate Assessment." Transactions of the ASABE 64, no. 3 (2021): 801–17. http://dx.doi.org/10.13031/trans.14311.

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HighlightsAERMOD and SCIPUFF were employed to back-calculate farm-level PM10 emission rates based on inverse modeling.Both AERMOD and SCIPUFF did not capture the diurnal and seasonal variations of farm-level PM10 emission rates.AERMOD modeling results were affected by wind speed, with higher wind speed leading to higher emission rates.Higher numbers of receptors and PM10 measurements with greater time resolution may be recommended in the future.Abstract. Air pollutant emissions from animal feeding operations (AFOs) have become a serious concern for public health and ambient air quality. Partic

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Skúladóttir, Á., and S. Salvadori. "Evidence for ≳4 Gyr timescales of neutron star mergers from Galactic archaeology." Astronomy & Astrophysics 634 (January 30, 2020): L2. http://dx.doi.org/10.1051/0004-6361/201937293.

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The nucleosynthetic site of the rapid (r) neutron-capture process is currently being debated. The direct detection of the neutron star merger GW170817, through gravitational waves and electromagnetic radiation, has confirmed such events as important sources of the r-process elements. However, chemical evolution models are not able to reproduce the observed chemical abundances in the Milky Way when neutron star mergers are assumed to be the only r-process site and realistic time distributions of such events are taken into account. Now for the first time, we combine all the available observation

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Ibrahim, Mohamed, Muftah El-Naas, Abdelbaki Benamor, Saad Al-Sobhi, and Zhien Zhang. "Carbon Mineralization by Reaction with Steel-Making Waste: A Review." Processes 7, no. 2 (2019): 115. http://dx.doi.org/10.3390/pr7020115.

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Carbon capture and sequestration (CCS) is taking the lead as a means for mitigating climate change. It is considered a crucial bridging technology, enabling carbon dioxide (CO2) emissions from fossil fuels to be reduced while the energy transition to renewable sources is taking place. CCS includes a portfolio of technologies that can possibly capture vast amounts of CO2 per year. Mineral carbonation is evolving as a possible candidate to sequester CO2 from medium-sized emissions point sources. It is the only recognized form of permanent CO2 storage with no concerns regarding CO2 leakage. It is

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d'Andrimont, Raphaël, Momchil Yordanov, Guido Lemoine, Janine Yoong, Kamil Nikel, and Marijn van der Velde. "Crowdsourced Street-Level Imagery as a Potential Source of In-Situ Data for Crop Monitoring." Land 7, no. 4 (2018): 127. http://dx.doi.org/10.3390/land7040127.

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New approaches to collect in-situ data are needed to complement the high spatial (10 m) and temporal (5 d) resolution of Copernicus Sentinel satellite observations. Making sense of Sentinel observations requires high quality and timely in-situ data for training and validation. Classical ground truth collection is expensive, lacks scale, fails to exploit opportunities for automation, and is prone to sampling error. Here we evaluate the potential contribution of opportunistically exploiting crowdsourced street-level imagery to collect massive high-quality in-situ data in the context of crop moni

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Shah, Dinakshi, Angela Lamarca, Juan W. Valle, and Mairéad G. McNamara. "The Potential Role of Liquid Biopsies in Advancing the Understanding of Neuroendocrine Neoplasms." Journal of Clinical Medicine 10, no. 3 (2021): 403. http://dx.doi.org/10.3390/jcm10030403.

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Tumour tissue as a source for molecular profiling and for in vivo models has limitations (e.g., difficult access, limited availability, single time point, potential heterogeneity between primary and metastatic sites). Conversely, liquid biopsies provide an easily accessible approach, enabling timely and longitudinal interrogation of the tumour molecular makeup, with increased ability to capture spatial and temporal intra-tumour heterogeneity compared to tumour tissue. Blood-borne biomarker assays (e.g., circulating tumour cells (CTCs), circulating free/tumour DNA (cf/ctDNA)) pose unique opport

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Mauranen, Anna. "Will 'translationese' ruin a contrastive study?" Languages in Contrast 2, no. 2 (1999): 161–85. http://dx.doi.org/10.1075/lic.2.2.03mau.

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Translated texts have been known as source material for contrastive analyses for a long time. Their value as suitable data has tended to be controversial throughout, and a new controversy is springing up now that corpus linguistics offers new perspectives for contrastive studies as well. Now that we can access large databases in any language, is there much point in drawing on the traditional kind of data that translations offer? This paper argues that corpora of translated texts constitute a valuable source of evidence for contrastive research, since they fulfil many of the criteria that have

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Glorioso, Brad M., Lindy J. Muse, Cory J. Hillard, et al. "A Trapping Survey Targeting Head-Started Alligator Snapping Turtles in Southwest Louisiana." Journal of Fish and Wildlife Management 11, no. 2 (2020): 572–82. http://dx.doi.org/10.3996/jfwm-20-009.

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Abstract The alligator snapping turtle Macrochelys temminckii is the largest freshwater turtle in North America and humans seek it as a food source, primarily in Louisiana. Scientists point to decades of intensive commercial harvest of alligator snapping turtles as a cause of population declines. The Louisiana Department of Wildlife and Fisheries initiated a head-start program for alligator snapping turtles and released 53 head-started juveniles at seven sites along an approximately 5.7-km stretch of Bundick Creek in southwest Louisiana between November 2015 and October 2016. Before release, d

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Stinear, Timothy, John K. Davies, Grant A. Jenkin, John A. Hayman, Frances Oppedisano, and Paul D. R. Johnson. "Identification of Mycobacterium ulcerans in the Environment from Regions in Southeast Australia in Which It Is Endemic with Sequence Capture-PCR." Applied and Environmental Microbiology 66, no. 8 (2000): 3206–13. http://dx.doi.org/10.1128/aem.66.8.3206-3213.2000.

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ABSTRACT We recently described the use of PCR to identify the environmental source of Mycobacterium ulcerans during an outbreak of ulcerative disease that occurred in a localized region of southeast Australia. The PCR used was based on amplification of the M. ulcerans-specific insertion sequence, IS2404. In this study we developed a new test that is a substantial improvement over the original PCR method in terms of sensitivity, reliability, and ease of use. In the new method magnetic bead sequence capture-PCR is used to detect two M. ulcerans sequences (IS2404 and IS2606) and total mycobacteri

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Myers, D. J., C. M. Schweik, R. Wicks, F. Bowlick, and M. Carullo. "DEVELOPING A LAND COVER CLASSIFICATION OF SALT MARSHES USING UAS TIME-SERIES IMAGERY AND AN OPEN SOURCE WORKFLOW." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-4/W8 (July 11, 2018): 155–62. http://dx.doi.org/10.5194/isprs-archives-xlii-4-w8-155-2018.

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<p><strong>Abstract.</strong> Salt marsh ecology classification is difficult using traditional coarse resolution remote sensing techniques. Salt marshes exhibit a spatial pattern of vegetation zonation that are visually identifiable using imagery that has an improved 0.04 meter per pixel resolution. This project applies high resolution unmanned aerial system (UAS) imagery to aid in multi-temporal classification of our study area (Horseneck Beach) in Westport, Massachusetts, USA. We flew a DJI Phantom Pro 3 at low- and high-tide to capture effects the changing tide has on vege

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Flasseur, Olivier, Loïc Denis, Éric Thiébaut, and Maud Langlois. "PACO ASDI: an algorithm for exoplanet detection and characterization in direct imaging with integral field spectrographs." Astronomy & Astrophysics 637 (May 2020): A9. http://dx.doi.org/10.1051/0004-6361/201937239.

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Context. Exoplanet detection and characterization by direct imaging both rely on sophisticated instruments (adaptive optics and coronagraph) and adequate data processing methods. Angular and spectral differential imaging (ASDI) combines observations at different times and a range of wavelengths in order to separate the residual signal from the host star and the signal of interest corresponding to off-axis sources. Aims. Very high contrast detection is only possible with an accurate modeling of those two components, in particular of the background due to stellar leakages of the host star masked

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Wojnarowski, Paweł, Robert Czarnota, Tomasz Włodek, Damian Janiga, Jerzy Stopa, and Piotr Kosowski. "The Possibility of CO2 Pipeline Transport for Enhanced Oil Recovery Project in Poland." MATEC Web of Conferences 259 (2019): 01004. http://dx.doi.org/10.1051/matecconf/201925901004.

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Enhanced oil recovery schemes involve the transportation of large volumes of carbon dioxide from the capture source to the utilisation site. This research presents the possibilities of carbon dioxide transport using pipeline from the selected emission point to the oil reservoir located in Poland where greenhouse gas can be used as injecting fluid to improve oil production. In the first step, the different CO2 thermodynamic states are analyzed. For the design purpose, length, operating pressures and flow rates are determined, then pipeline diameter is calculated. Furthermore, the pipeline trans

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Demicheva, Natalia A. "CYCLIZATION OF OLD RUSSIAN WORKS ON THE ANNEXATION OF THE NORTH-WESTERN LANDS TO THE GRAND DUCHY OF MOSCOW IN MANUSCRIPTS OF THE 16–17TH CENTURIES." Vestnik slavianskikh kul’tur [Bulletin of Slavic Cultures] 58 (2020): 171–78. http://dx.doi.org/10.37816/2073-9567-2020-58-171-178.

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The paper examines the cycle of stories “The capture of Novgorod the Great” and “The Taking of Pskov” in manuscripts of the 16th–17th centuries. Since at least two manuscripts contain the stories “The taking of Novgorod the Great” and “The taking of Pskov” in the same sequence, thematically related, the creator of this cycle probably used the same chronicle source. The author analyzes texts taking into account the composition of the manuscripts and the context of chronicle texts of the 15th–16th centuries on the annexation of the North-Western lands to the Grand Duchy of Moscow. Attention is f

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Thoe, Wai, King Wah Choi, and Joseph Hun-wei Lee. "Predicting ‘very poor’ beach water quality gradings using classification tree." Journal of Water and Health 14, no. 1 (2015): 97–108. http://dx.doi.org/10.2166/wh.2015.094.

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A beach water quality prediction system has been developed in Hong Kong using multiple linear regression (MLR) models. However, linear models are found to be weak at capturing the infrequent ‘very poor’ water quality occasions when Escherichia coli (E. coli) concentration exceeds 610 counts/100 mL. This study uses a classification tree to increase the accuracy in predicting the ‘very poor’ water quality events at three Hong Kong beaches affected either by non-point source or point source pollution. Binary-output classification trees (to predict whether E. coli concentration exceeds 610 counts/

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Oakley, T. R., E. Loth, and R. J. Adrian. "A Two-Phase Cinematic PIV Method for Bubbly Flows." Journal of Fluids Engineering 119, no. 3 (1997): 707–12. http://dx.doi.org/10.1115/1.2819302.

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A cinematic particle image velocimeter (PIV) for measurement of time varying fields in two-phase flow is described. This system has the capability to track detailed characteristics of individual bubbles moving through a turbulent flow field, e.g., size, shape, velocity, and acceleration, and simultaneously to measure the instantaneous fluid velocity field on a two-dimensional plane. The system employs an argon-ion laser, a rotating polygonal mirror and a single 35 mm movie camera. Two features of this technique are the ability to capture bubble trajectories for long periods of time and the use

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