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Artículos de revistas sobre el tema "Trace merging"

Autor: Grafiati
Publicado: 25 de mayo de 2024
Última modificación: 31 de julio de 2025

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1

Gao, Yu. "Luminous IR Galaxies: Evolution and Molecular Gas." International Astronomical Union Colloquium 159 (1997): 439–40. http://dx.doi.org/10.1017/s0252921100040690.

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Luminous infrared galaxies (LIRGs), denned by the criterion LIR ≳ 2 × 1011L⊙ (for H0=75 kms−1 Mpc−1), are the most powerful IR sources in the Universe, with most of their emission (~ 90%) in the far-IR. Most LIRGs are interacting/merging galaxies with large amounts of molecular gas as revealed by CO surveys (Sanders et al. 1991; Solomon et al. 1996). However, whether starbursts or dust-enshrouded AGNs/QSOs dominate the IR luminosity is not resolved.CO may not trace the active star-forming regions where gas density is more than one order of magnitude higher than the average. Dense molecular gas
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2

Yi, Huiguo, Jie Yang, Pingxiang Li, Lei Shi, and Fengkai Lang. "A PolSAR Image Segmentation Algorithm Based on Scattering Characteristics and the Revised Wishart Distance." Sensors 18, no. 7 (2018): 2262. http://dx.doi.org/10.3390/s18072262.

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A novel segmentation algorithm for polarimetric synthetic aperture radar (PolSAR) images is proposed in this paper. The method is composed of two essential components: a merging order and a merging predicate. The similarity measured by the complex-kind Hotelling–Lawley trace (HLT) statistic is used to decide the merging order. The merging predicate is determined by the scattering characteristics and the revised Wishart distance between adjacent pixels, which can greatly improve the performance in speckle suppression and detail preservation. A postprocessing step is applied to obtain a satisfac
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3

Czarnomska, Martyna, Aneta Lewkowicz, Emilia Gruszczyńska, et al. "Preliminary Investigation of a Potential Optical Biosensor Using the Diamond™ Nucleic Acid Dye Applied to DNA and Friction Ridge Analysis from Fingerprint Traces." Biosensors 14, no. 11 (2024): 546. http://dx.doi.org/10.3390/bios14110546.

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Developments in science and technology lead to an increasing use of scientific evidence in litigation. Interdisciplinary research can improve current procedures and introduce new ones for the disclosure and examination of evidence. The dactyloscopic trace is used for personal identification by matching minutiae (the minimum required may vary by country) or for extracting DNA material from the trace under investigation. The research presented in this article aims to propose the merging of two currently used personal identification methods, DNA analysis and dactyloscopic trace analysis, which ar
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4

MacLeod, Morgan, Kishalay De, and Abraham Loeb. "Dusty, Self-obscured Transients from Stellar Coalescence." Astrophysical Journal 937, no. 2 (2022): 96. http://dx.doi.org/10.3847/1538-4357/ac8c31.

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Abstract We discuss the central role that dust condensation plays in shaping the observational appearance of outflows from coalescing binary systems. As binaries begin to coalesce, they shock-heat and expel material into their surroundings. Depending on the properties of the merging system, this material can expand to the point where molecules and dust form, dramatically increasing the gas opacity. We use the existing population of luminous red novae to constrain the thermodynamics of these ejecta, then apply our findings to the progressive obscuration of merging systems in the lead up to thei
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5

Hamasuna, Yukihiro, Ryo Ozaki, and Yasunori Endo. "Two-Stage Clustering Based on Cluster Validity Measures." Journal of Advanced Computational Intelligence and Intelligent Informatics 22, no. 1 (2018): 54–61. http://dx.doi.org/10.20965/jaciii.2018.p0054.

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To handle a large-scale object, a two-stage clustering method has been previously proposed. The method generates a large number of clusters during the first stage and merges clusters during the second stage. In this paper, a novel two-stage clustering method is proposed by introducing cluster validity measures as the merging criterion during the second stage. The significant cluster validity measures used to evaluate cluster partitions and determine the suitable number of clusters act as the criteria for merging clusters. The performance of the proposed method based on six typical indices is c
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6

Wu, Tom Y., and Maya Fishbach. "Are Long Gamma-Ray Bursts Progenitors to Merging Binary Black Holes?" Astrophysical Journal 977, no. 2 (2024): 239. https://doi.org/10.3847/1538-4357/ad98ed.

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Abstract The distribution of delay times between the formation of binary black hole (BBH) progenitors and their gravitational-wave (GW) merger provides important clues about their unknown formation histories. When inferring the delay time distribution, it is typically assumed that BBH progenitor formation traces the star formation rate (SFR). In this work, we consider the rate of long gamma-ray bursts (LGRBs) instead of the SFR. LGRBs are thought to correspond to the formation of (possibly spinning) black holes, and may therefore be related to the BBH progenitor population. By comparing the re
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7

Norris, Dennis, James M. McQueen, and Anne Cutler. "Merging information in speech recognition: Feedback is never necessary." Behavioral and Brain Sciences 23, no. 3 (2000): 299–325. http://dx.doi.org/10.1017/s0140525x00003241.

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Top-down feedback does not benefit speech recognition; on the contrary, it can hinder it. No experimental data imply that feedback loops are required for speech recognition. Feedback is accordingly unnecessary and spoken word recognition is modular. To defend this thesis, we analyse lexical involvement in phonemic decision making. TRACE (McClelland & Elman 1986), a model with feedback from the lexicon to prelexical processes, is unable to account for all the available data on phonemic decision making. The modular Race model (Cutler & Norris 1979) is likewise challenged by some recent r
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8

Lee, Jin, Jae Hwa Lee, Jung-Il Choi, and Hyung Jin Sung. "Spatial organization of large- and very-large-scale motions in a turbulent channel flow." Journal of Fluid Mechanics 749 (May 23, 2014): 818–40. http://dx.doi.org/10.1017/jfm.2014.249.

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AbstractDirect numerical simulations were carried out to investigate the spatial features of large- and very-large-scale motions (LSMs and VLSMs) in a turbulent channel flow ($\def \xmlpi #1{}\def \mathsfbi #1{\boldsymbol {\mathsf {#1}}}\let \le =\leqslant \let \leq =\leqslant \let \ge =\geqslant \let \geq =\geqslant \def \Pr {\mathit {Pr}}\def \Fr {\mathit {Fr}}\def \Rey {\mathit {Re}}\mathit{Re}_{\tau }=930$). A streak detection method based on the streamwise velocity fluctuations was used to individually trace the cores of LSMs and VLSMs. We found that both the LSM and VLSM populations were
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9

LIN, JA-CHEN. "MULTI-CLASS CLUSTERING BY ANALYTICAL TWO-CLASS FORMULAS." International Journal of Pattern Recognition and Artificial Intelligence 10, no. 04 (1996): 307–23. http://dx.doi.org/10.1142/s0218001496000220.

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This paper proposes a new clustering method based on the hierarchical use of the analytical two-class clustering tool introduced by Lin and Tsai.1 The method comprises two phases. In the first phase, called the splitting phase, the data set is hierarchically decomposed into some subsets. In the second phase, called the merging phase, the set-to-set distances between these subsets are checked so that some subsets can be merged back together to obtain better clustering results. We use the idea of the so-called dense cut to determine when to stop the splitting phase. We also use a trace-following
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10

Djoudar, B., A. Yu Ilinykh, and Yu D. Chashechkin. "Evolution of vortices at the merging of an ethanol droplet with water in an intrusive mode." Doklady Rossijskoj akademii nauk. Fizika, tehničeskie nauki 517, no. 1 (2024): 18–28. https://doi.org/10.31857/s2686740024040046.

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The evolution of vortices formed when a freely falling drop of a 95% aqueous solution of ethanol, tinted with brilliant green, merges with water in the intrusive mode has been traced by method of high-speed video recording. The drop smoothly flows into the liquid and forms a subducting lenticular intrusion, in which a weakly expressed ring vortex is formed if the potential surface energy is greater than or of the same order as its kinetic energy. Gradually, the intrusion of lighter liquid begins to float up and contracts around the cavern, which takes on a conical shape. From the center of the
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11

Hollands, Carolyn, Steve Droho, Steve Crone, and Kamal Sharma. "Merging anterior–posterior and dorsal–ventral markers to trace neuronal lineages in the mouse brainstem." Developmental Biology 356, no. 1 (2011): 239. http://dx.doi.org/10.1016/j.ydbio.2011.05.418.

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12

Tao, Shiping, Yintong Guo, Haoyong Huang, et al. "Deep-Learning-Based Amplitude Variation with Angle Inversion with Multi-Input Neural Networks." Processes 12, no. 10 (2024): 2259. http://dx.doi.org/10.3390/pr12102259.

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Deep-learning-based (DL-based) seismic inversion has emerged as one of the state-of-the-art research areas in exploration geophysics with the development of artificial intelligence technology. Due to its good portability and high computational efficiency, this method has emerged as a data-driven approach for estimating subsurface properties. However, most of the current DL-based methods rely solely on seismic data, lacking the incorporation of prior information. In addition, these methods are usually performed trace-by-trace, resulting in insufficient horizontal constraints. These limitations
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13

Abdullah, Rahmah Hashim, Amal Saadoon Majeed, Ahmed Saleh Farhood, Dakhil Nassir Taha, and Nahlah Salman Saddam. "TRACE ANALYSIS OF BRILLIANT GREEN DYE BY FLOW INJECTION TECHNIQUE." Journal of Chemical Technology and Metallurgy 60, no. 3 (2025): 511–20. https://doi.org/10.59957/jctm.v60.i3.2025.17.

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A low-cost and high throughput flow injection analysis (FIA) system design is conducted to determine Brilliant Green (BG) dye. The research includes studying the chemical and physical variables and control of optimal conditions of the FIA system. The merging zone technique uses a homemade flow injection valve to determine BG dye. The optimum conditions are studied, such as the flow rate of the carrier, optimal dye volume, repeatability, dead volume, and dispersion coefficient. The flow rate is 3.0 mL min-1, the optimal volume of dye is 82.425 μL, the repeatability is high for eight measurement
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14

Ren, Nana, Yuyi Zhang, Wenlong Shu, et al. "Impact of Hydrogen Voiding in Chip-to-Chip Electroless All-Copper Interconnections." Micromachines 15, no. 5 (2024): 612. http://dx.doi.org/10.3390/mi15050612.

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Three-dimensional (3D) integration has become a leading approach in chip packaging. The interconnection density and reliability of micro-bumps in chip stacking are often threatened by high bonding temperatures. The method of building chip-to-chip interconnections by electroless deposition of metal has its distinct merit, while the interfacial defect issue, especially that related to voiding during the merging of opposite sides, remains largely unsolved. In this study, to trace the influencing factors in the voiding, the growth characteristics of the electroless all-copper interconnections were
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15

Finner, Kyle, M. James Jee, Hyejeon Cho, et al. "Weak-lensing Characterization of the Dark Matter in 29 Merging Clusters that Exhibit Radio Relics." Astrophysical Journal Supplement Series 277, no. 1 (2025): 28. https://doi.org/10.3847/1538-4365/adb0b6.

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Abstract We present a multiwavelength analysis of 29 merging galaxy clusters that exhibit radio relics. For each merging system, we perform a weak-lensing analysis on Subaru optical imaging. We generate high-resolution mass maps of the dark matter distributions, which are critical for discerning the merging constituents. Combining the weak-lensing detections with X-ray emission, radio emission, and galaxy redshifts, we discuss the formation of radio relics from the past collision. For each cluster, we obtain mass estimates by fitting a multicomponent Navarro–Frenk–White model with and without
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16

Giglio, L., J. T. Randerson, G. R. van der Werf, et al. "Assessing variability and long-term trends in burned area by merging multiple satellite fire products." Biogeosciences Discussions 6, no. 6 (2009): 11577–622. http://dx.doi.org/10.5194/bgd-6-11577-2009.

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Abstract. Long term, high quality estimates of burned area are needed for improving both prognostic and diagnostic fire emissions models and for assessing feedbacks between fire and the climate system. We developed global, monthly burned area estimates aggregated to 0.5° spatial resolution for the time period July 1996 through mid-2009 using four satellite data sets. From 2001–2009, our primary data source was 500-m burned area maps produced using Moderate Resolution Imaging Spectroradiometer (MODIS) surface reflectance imagery; more than 90% of the global area burned during this time period w
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17

Giglio, L., J. T. Randerson, G. R. van der Werf, et al. "Assessing variability and long-term trends in burned area by merging multiple satellite fire products." Biogeosciences 7, no. 3 (2010): 1171–86. http://dx.doi.org/10.5194/bg-7-1171-2010.

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Abstract. Long term, high quality estimates of burned area are needed for improving both prognostic and diagnostic fire emissions models and for assessing feedbacks between fire and the climate system. We developed global, monthly burned area estimates aggregated to 0.5° spatial resolution for the time period July 1996 through mid-2009 using four satellite data sets. From 2001–2009, our primary data source was 500-m burned area maps produced using Moderate Resolution Imaging Spectroradiometer (MODIS) surface reflectance imagery; more than 90% of the global area burned during this time period w
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18

Kumar, Ankit, Mousumi Das, and Sandeep Kumar Kataria. "The evolution of bulges of galaxies in minor fly-by interactions." Proceedings of the International Astronomical Union 14, S353 (2019): 166–67. http://dx.doi.org/10.1017/s1743921319008251.

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AbstractWe investigate the minor interactions of two disk galaxies with mass ratio of 10:1 in fly-by encounters that do not lead to the merging of the galaxies. In our N-body simulations, we vary only the pericenter distances to see the effect of the fly-by on the bulge of the major galaxy over the course of the trajectory. At different time steps of the evolution, we did two-dimensional fittings of disk, bulge and bar to trace the variation in the sersic index of the bulge. Our results suggest that galaxy bulges can become boxy/disky through flyby interactions of galaxies.
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19

Guo, Qi, та Simon White. "Disk Sizes in a ΛCDM Universe". Proceedings of the International Astronomical Union 4, S254 (2008): 411–16. http://dx.doi.org/10.1017/s1743921308027890.

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AbstractWe introduce a model which uses semi-analytic techniques to trace formation and evolution of galaxy disks in their cosmological context. For the first time we model the growth of gas and stellar disks separately. In contrast to previous work we follow in detail the angular momentum accumulation history through the gas cooling, merging and star formation processes. Our model successfully reproduces the stellar mass–radius distribution and gas-to-stellar disk size ratio distribution observed locally. We also investigate the dependence of clustering on galaxy size and find qualitative agr
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20

Grittmann, Pascal, Arsène Pérard-Gayot, Philipp Slusallek, and Jaroslav Křivánek. "Efficient Caustic Rendering with Lightweight Photon Mapping." Computer Graphics Forum 37, no. 4 (2019): 133–42. https://doi.org/10.1111/cgf.13481.

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Robust and efficient rendering of complex lighting effects, such as caustics, remains a challenging task. While algorithms like vertex connection and merging can render such effects robustly, their significant overhead over a simple path tracer is not always justified and – as we show in this paper – also not necessary. In current rendering solutions, caustics often require the user to enable a specialized algorithm, usually a photon mapper, and hand-tune its parameters. But even with carefully chosen parameters, photon mapping may still trace many photons that the path tracer coul
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21

Smilgys, Romas, and Ian A. Bonnell. "Galactic flows and the formation of stellar clusters." Proceedings of the International Astronomical Union 12, S316 (2015): 184–89. http://dx.doi.org/10.1017/s1743921315009394.

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AbstractWe investigate the formation of stellar clusters from a Galactic scale SPH simulation. The simulation traces star formation over a 5.6 Myr timescale, with local gravitational instabilities resulting in ~ 105 solar masses of star formation in the form of sink particles. We investigate the time evolution of the physical properties of the forming clusters including their half-mass radii, their energies and the depletion time of the gas. Star formation is driven by the large scale flows which compress the gas to higher densities where self gravity takes over and collapse occurs. We show th
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22

Campbell, David. "Luhmann without tears: complex economic regulation and the erosion of the market sphere." Legal Studies 33, no. 1 (2013): 162–86. http://dx.doi.org/10.1111/lest.12001.

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One of the concepts central to the ‘reconceiving’ of the ‘regulatory state’ during ‘the age of regulatory reform’ which we might trace back to the neoliberal revolution of the 1970s, has been that of the ‘hybrid’ form of economic organisation. Rejection of command-and-control regulation led, in the public sector, to the adoption of ‘marketmimicking’, a technique that claimed to replace the hierarchical direction of planning with the mobilisation of self-interest in ‘quasi-markets’, thereby merging ‘economic’ incentivisation with the ‘political’ stipulation of the markets' outcomes. In the priv
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23

Senatore, Mauro. "Leaving a Trace in the World: Sexuality and Auto-Affection in Of Grammatology." Derrida Today 6, no. 2 (2013): 240–54. http://dx.doi.org/10.3366/drt.2013.0066.

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This essay aims to bring to light a specific movement elaborated by Derrida in Of Grammatology, which goes from the experience of dispossession in speech and the economy of signs that replaces speech itself with writing, through the chains of supplements, to the merging of language and auto-erotism into the differentiated totality of auto-affection as the universal rule of experience or as life itself. I will point out that idealization, as the submission of the world to a certain power of repetition in the living and, thus, as the only condition at which the world can affect the living, marks
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24

Cobelli, C., M. P. Saccomani, E. Ferrannini, R. A. Defronzo, R. Gelfand, and R. Bonadonna. "A compartmental model to quantitate in vivo glucose transport in the human forearm." American Journal of Physiology-Endocrinology and Metabolism 257, no. 6 (1989): E943—E958. http://dx.doi.org/10.1152/ajpendo.1989.257.6.e943.

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Glucose transport is a critical step in the control of glucose disposal that, until presently, has not been quantitated in vivo in humans. We have employed the perfused forearm and euglycemic insulin-clamp techniques in combination with a dual-tracer injection to measure basal and insulin-mediated glucose transport in six normal subjects. L-[3H]glucose, which is not transported, was used to trace extracellular glucose kinetics; 3-O-[14C]-methyl-D-glucose, transportable but not metabolizable, was used to monitor glucose movement across the cell membrane. After bolus intra-arterial injection of
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25

Brunson, Wesley. "Dragonfly." UnderCurrents: Journal of Critical Environmental Studies 21 (October 18, 2022): 49–52. http://dx.doi.org/10.25071/2292-4736/40294.

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This prose poem explores autobiography as a trace site for the affective encounters between life and non-life. Using my own memories of making a childhood bug collection, I attempt to answer a question Povinelli asks in Geontologies—What does life desire? —by merging it with a question raised in my own ethnographic fieldwork—What do I desire? The affective resonance between my childhood bug collection, my ethnographic fieldwork as part of my PhD program in anthropology, and Povinelli’s 2016 book disrupts linear notions of time and argues that desire for difference itself produces the distincti
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26

Makowski, Dominique, and Philip D. Waggoner. "Where Are We Going with Statistical Computing? From Mathematical Statistics to Collaborative Data Science." Mathematics 11, no. 8 (2023): 1821. http://dx.doi.org/10.3390/math11081821.

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The field of statistical computing is rapidly developing and evolving. Shifting away from the formerly siloed landscape of mathematics, statistics, and computer science, recent advancements in statistical computing are largely characterized by a fusing of these worlds; namely, programming, software development, and applied statistics are merging in new and exciting ways. There are numerous drivers behind this advancement, including open movement (encompassing development, science, and access), the advent of data science as a field, and collaborative problem-solving, as well as practice-alterin
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27

Rebotier, Julien. "La dimensión territorial del riesgo urbano en Caracas: características y alcances. Una propuesta integradora para pensar el riesgo en una realidad socio-espacial compleja." Revista Trace, no. 56 (July 9, 2018): 11. http://dx.doi.org/10.22134/trace.56.2009.392.

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Las mutaciones urbanas contemporáneas, en particular en países del Sur, hacen del riesgo mucho más que un mero objeto de estudio. Además de una contextualización necesaria para poder pensar su construcción en el espacio urbano, según aspectos materiales e inmateriales, es importante subrayar la dimensión causal del riesgo urbano en la construcción del espacio urbano. Los enfoques sectoriales y técnicos de estudio de riesgo no permiten abarcar ampliamente dicha complejidad. Afianzar la construcción territorial y construcción de riesgos en una combinación sistémica ayuda a explorar las relacione
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28

Yang, Xiaodong, Omar Ali Beg, Matthew Kenigsberg, and Taylor T. Johnson. "A Framework for Identification and Validation of Affine Hybrid Automata from Input-Output Traces." ACM Transactions on Cyber-Physical Systems 6, no. 2 (2022): 1–24. http://dx.doi.org/10.1145/3470455.

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Automata-based modeling of hybrid and cyber-physical systems (CPS) is an important formal abstraction amenable to algorithmic analysis of its dynamic behaviors, such as in verification, fault identification, and anomaly detection. However, for realistic systems, especially industrial ones, identifying hybrid automata is challenging, due in part to inferring hybrid interactions, which involves inference of both continuous behaviors, such as through classical system identification, as well as discrete behaviors, such as through automata (e.g., L*) learning. In this paper, we propose and evaluate
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29

Camargo, Denilso. "NGC 1605a and NGC 1605b: An Old Binary Open Cluster in the Galaxy." Astrophysical Journal 923, no. 1 (2021): 21. http://dx.doi.org/10.3847/1538-4357/ac2835.

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Abstract This work communicates the discovery of a binary open cluster within the Galaxy. NGC 1605 presents an unusual morphology with a sparse stellar distribution and a double core in close angular proximity. The 2MASS and Gaia-EDR3 field-star decontaminated color–magnitude diagrams (CMDs) show two distinct stellar populations located at the same heliocentric distance of ∼2.6 kpc, suggesting that there are two clusters in the region, NGC 1605a and NGC 1605b, with ages of 2 Gyr and 600 Myr, respectively. Both Gaia parallax and PM distributions are compact and very similar indicating that they
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30

Zeng, Hongliu. "Geologic significance of anomalous instantaneous frequency." GEOPHYSICS 75, no. 3 (2010): P23—P30. http://dx.doi.org/10.1190/1.3427638.

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Anomalous frequency spikes derived from complex-trace analysis have long been considered more as a flaw of algorithms than a valuable seismic attribute. However, synthetic models and field data show that instantaneous frequency spikes are clearly linked to physical models that could help geologic interpretations of seismic data. Frequency spikes are related to relative amplitude minima along a seismic trace that occur either at the merging point of the top and base reflections of a wedge (type I) or at the tip of the wedge (type II). A type II spike is indicative of a seismically thin bed (ave
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31

Dobroselsky, Konstantin. "Features of the dynamics of several elevated jets in a cross-flow." E3S Web of Conferences 578 (2024): 01007. http://dx.doi.org/10.1051/e3sconf/202457801007.

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Using the thermoanemometric method, the effect of turbulent cross-flow on vertical low-speed elevated axisymmetric jets with a relative velocity of approximately 2.45 has been experimentally investigated. Processing and qualitative analysis of experimental data on velocity profiles for the case of two and four identical isothermal turbulent jets propagating in a uniform cross-flow are carried out. The analysis of velocity contours in different cross-sections showed that the interaction of the jets proceeds in a complex way; and in this interaction, in addition to the jets and the cross flow, t
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32

Kaper, Lex. "Gamma-ray bursts: the most powerful cosmic explosions." Symposium - International Astronomical Union 212 (2003): 106–14. http://dx.doi.org/10.1017/s0074180900211704.

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With the detection of gamma-ray burst (GRB) afterglows, the cosmological origin of GRBs has been firmly established. Recent observations suggest that (long-duration) GRBs are due to the collapse of a massive star forming a black hole. Besides theoretical arguments, observational evidence supporting this hypothesis comes from the coincidence of several GRBs with a supernova. Also, all accurately located GRBs are contained in the optical (restframe UV) extent of distant, blue galaxies. Some of these host galaxies show relatively high star-formation rates, which is expected when massive stars and
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33

Shin, Jihye, Jong Chul Lee, Ho Seong Hwang, et al. "Spatial Distribution of Dark Matter in and Around Galaxy Clusters Traced by Galaxies, Gas, and Intracluster Stars in a Simulated Universe." Astrophysical Journal 934, no. 1 (2022): 43. http://dx.doi.org/10.3847/1538-4357/ac7961.

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Abstract To understand how well galaxies, gas, and intracluster stars trace dark matter in and around galaxy clusters, we use the IllustrisTNG cosmological hydrodynamical simulation and compare the spatial distribution of dark matter with that of baryonic components in clusters. To quantify the global morphology of the density distribution of each component in clusters, we fit an ellipse to the density contour of each component and derive shape parameters at different radii. We find that the ellipticity of dark matter is better correlated with that of galaxy mass-weighted number density, rathe
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34

Svyd, I. V., and M. G. Tkach. "Synthesis and analysis of the trace detector of air objects of an interrogating radar system." Radiotekhnika, no. 212 (March 28, 2023): 175–85. http://dx.doi.org/10.30837/rt.2023.1.212.17.

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The paper considers the features of tracking air objects in existing information networks of radar systems for monitoring airspace. It is shown that the tracking is carried out according to the information of the primary radar surveillance systems, and the secondary radar surveillance systems are used as sources of additional radar information. But the transition to automatic dependent surveillance implies the mandatory use of only request radar surveillance systems. Therefore, the problems of formulating methods and algorithms for tracking air objects based on information from secondary radar
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35

Werner, Christiane, Christine Hellmann, and André Große-Stoltenberg. "An integrative framework to assess the spatio-temporal impact of plant invasion on ecosystem functioning." NeoBiota 94 (August 7, 2024): 225–42. http://dx.doi.org/10.3897/neobiota.94.126714.

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Invasive species can alter the structure and functioning of the invaded ecosystem, but predictions of the impact of invasive species on ecosystem functioning are weak. Invasion is determined by the interplay of invasive species traits, the recipient community, and the environmental context. However, efficient approaches to assess the spatial dimension of functional changes in heterogeneous environments and altered plant-plant interactions are lacking. Based on recent technological progress, we posit a way forward to i) quantify the fine-scale heterogeneity of the environmental context, ii) map
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36

Tan, Kefeng, and Gang Zhao. "Two distinct halo populations in the solar neighborhood: evidence from stellar abundance of beryllium." Proceedings of the International Astronomical Union 9, S298 (2013): 83–85. http://dx.doi.org/10.1017/s1743921313006248.

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AbstractIt is now generally believed that the Galaxy was formed through hierarchical merging, which means that different components of the Galaxy may have experienced different chemical evolution histories. Since alpha elements are mainly produced by core collapse supernovae, they are closely associated with the star formation history of the Galaxy. In this regard, Galactic components with different alpha elemental abundance patterns may show different behaviors in beryllium abundances since the production of beryllium is correlated with the cosmic rays and thus the supernovae. A recent study
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37

Werner, Christiane, Christine Hellmann, and André Große-Stoltenberg. "An integrative framework to assess the spatio-temporal impact of plant invasion on ecosystem functioning." NeoBiota 94 (August 7, 2024): 225–42. https://doi.org/10.3897/neobiota.94.126714.

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Invasive species can alter the structure and functioning of the invaded ecosystem, but predictions of the impact of invasive species on ecosystem functioning are weak. Invasion is determined by the interplay of invasive species traits, the recipient community, and the environmental context. However, efficient approaches to assess the spatial dimension of functional changes in heterogeneous environments and altered plant-plant interactions are lacking. Based on recent technological progress, we posit a way forward to i) quantify the fine-scale heterogeneity of the environmental context, ii) map
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38

Burger, C., Á. Bazsó, and C. M. Schäfer. "Realistic collisional water transport during terrestrial planet formation." Astronomy & Astrophysics 634 (February 2020): A76. http://dx.doi.org/10.1051/0004-6361/201936366.

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Context. According to the latest theoretical and isotopic evidence, Earth’s water content originates mainly from today’s asteroid belt region, or at least from the same precursor material. This suggests that water was transported inwards to Earth, and to similar planets in their habitable zone, via (giant) collisions of planetary embryos and planetesimals during the chaotic final phase of planet formation. Aims. In current dynamical simulations water delivery to terrestrial planets is still studied almost exclusively by assuming oversimplified perfect merging, even though water and other volat
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39

Zhang, Tianran, Martin Wooster, David C. Green, and Bruce Main. "A Mathematical Approach to Merging Data from Different Trace Gas/Particulate Sensors Having Dissimilar (T90) Response Times: Application to Fire Emission Factor Determination." Aerosol and Air Quality Research 20, no. 2 (2020): 281–90. http://dx.doi.org/10.4209/aaqr.2019.02.0061.

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40

Kornder, Lisa, and Ineke Mennen. "Longitudinal Developments in Bilingual Second Language Acquisition and First Language Attrition of Speech: The Case of Arnold Schwarzenegger." Languages 6, no. 2 (2021): 61. http://dx.doi.org/10.3390/languages6020061.

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The purpose of this investigation was to trace first (L1) and second language (L2) segmental speech development in the Austrian German–English late bilingual Arnold Schwarzenegger over a period of 40 years, which makes it the first study to examine a bilingual’s speech development over several decades in both their languages. To this end, acoustic measurements of voice onset time (VOT) durations of word-initial plosives (Study 1) and formant frequencies of the first and second formant of Austrian German and English monophthongs (Study 2) were conducted using speech samples collected from broad
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41

Bergerot, L., J. Y. Blaise, A. Pamart, and I. Dudek. "VISUAL CROSS-EXAMINATION OF ARCHITECTURAL AND ACOUSTIC DATA: THE 3D INTEGRATOR EXPERIMENT." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVI-2/W1-2022 (February 25, 2022): 81–88. http://dx.doi.org/10.5194/isprs-archives-xlvi-2-w1-2022-81-2022.

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Abstract. This paper presents an online application called 3D integrator enabling visual cross-examinations of architectural and acoustic data on web browsers, and explains the rationale behind its development. The tool consists of a series of overlays developed over the Potree 3D point cloud renderer. The 3D integrator is used to display visually, in an interactive environment, the 3D point clouds resulting from a survey protocol tailored to the specific needs of the corpus under scrutiny – fifteen small scale edifices often referred to as “minor heritage assets - and to the research’s overal
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42

Lindberg, Annika. "The Production of Precarity in Denmark’s Asylum Regime." Zeitschrift für Sozialreform 66, no. 4 (2020): 413–39. http://dx.doi.org/10.1515/zsr-2020-0018.

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Abstract The special issue discusses the intersections between social welfare and migration control, as well as how stratified access to welfare services is used to govern ‘unwanted’ groups. This article explores these intersections in Denmark’ deterrence-oriented asylum policy regime, analysing the discourses and practices whereby people seeking protection are constructed as ‘undeserving’ poor. Drawing on ethnographic fieldwork in different sites of enforcement of Denmark’s asylum regime as well as interviews with street-level workers and people who sought asylum in Denmark, I trace how the D
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43

Jones, A., F. de Gasperin, V. Cuciti, et al. "Radio relics in PSZ2 G096.88+24.18: a connection with pre-existing plasma." Monthly Notices of the Royal Astronomical Society 505, no. 4 (2021): 4762–74. http://dx.doi.org/10.1093/mnras/stab1443.

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ABSTRACT Giant radio relics are arc-like structures of diffuse, non-thermal synchrotron radiation that trace shock waves induced by galaxy cluster mergers. The particle (re-)acceleration mechanism producing such radio relics is unclear. One major open question is whether relics can be formed directly from a population of thermal seed electrons, or if pre-existing relativistic seed electrons are required. In some cases, active galactic nuclei (AGNs) can provide such a population of sub-GeV electrons. However, it is unclear how common this connection is. In this paper, we present LOFAR 140 MHz a
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44

KÖSTER, KLAUS, and MICHAEL SPANN. "UNSUPERVISED SEGMENTATION OF 3D AND 2D SEISMIC REFLECTION DATA." International Journal of Pattern Recognition and Artificial Intelligence 13, no. 05 (1999): 643–63. http://dx.doi.org/10.1142/s0218001499000380.

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An unsupervised method to extract 2D and 3D inner earth structures from seismic reflection measurements is described. The application is a typical texture segmentation problem, which can be split up into a feature extraction stage and a segmentation stage. As a texture feature, the locally emergent frequency is estimated by a Gabor filter bank. The instantaneous frequency (IF) has already been successfully used for seismic trace analysis21 and will be compared with the results of the filter bank. The second stage of the algorithm involves a region-growing method to compute the final object str
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45

Lozano-Fernandez, Jesus, Robert Carton, Alastair R. Tanner, et al. "A molecular palaeobiological exploration of arthropod terrestrialization." Philosophical Transactions of the Royal Society B: Biological Sciences 371, no. 1699 (2016): 20150133. http://dx.doi.org/10.1098/rstb.2015.0133.

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Understanding animal terrestrialization, the process through which animals colonized the land, is crucial to clarify extant biodiversity and biological adaptation. Arthropoda (insects, spiders, centipedes and their allies) represent the largest majority of terrestrial biodiversity. Here we implemented a molecular palaeobiological approach, merging molecular and fossil evidence, to elucidate the deepest history of the terrestrial arthropods. We focused on the three independent, Palaeozoic arthropod terrestrialization events (those of Myriapoda, Hexapoda and Arachnida) and showed that a marine r
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46

Bergerot, Laurent, Jean-Yves Blaise, Iwona Dudek, et al. "Combined Web-Based Visualisation of 3D Point Clouds and Acoustic Descriptors: An Interdisciplinary Challenge." Heritage 5, no. 4 (2022): 3819–45. http://dx.doi.org/10.3390/heritage5040197.

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This paper presents an online application—called 3D integrator—enabling visual cross-examinations of architectural and acoustic data on web browsers and explains the rationale behind its development. The tool consists of a series of overlays developed over the Potree 3D point cloud renderer. It is used to display visually, in an interactive environment, the 3D point clouds resulting from a survey protocol tailored to the specific needs of the corpus under scrutiny—15 small-scale edifices often referred to as “minor heritage assets”—and to the research’s overall ambition, reasoning on architect
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47

Nishtha Kishore. "Revisiting Anita Desai’s Fiction: Tracing Generational Relevance towards a Third Culture/Third Space Spectrum." Creative Saplings 1, no. 9 (2022): 26–35. http://dx.doi.org/10.56062/gtrs.2022.1.9.185.

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The paper attempts to trace the generational relevance of produced fiction by Anita Desai (b. 1937) towards the possibility of locating third culture subjectivity and the scope of the third space spectrum. The association ranges from the character aesthetics to strategic spatial intervention in her fiction, and the scope of extending the same to new pressures of readership pertaining to constantly mobile and restructured locales. The world around shows signs of disintegration of the individual vis-a-vis dislocation, migration, and dynamic forms of locomotion. It is, therefore, imperative that
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48

Das, Pragya, Ritesh Verma, and Kaustav Prasad. "Exploring PET imaging with scattered photons and polarization characteristics." Bio-Algorithms and Med-Systems 20, Special Issue (2024): 10–16. https://doi.org/10.5604/01.3001.0054.8576.

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<b>Objective:</b> To demonstrate the potential of PET imaging using scattered photons, we have proposed a novel technique that utilizes single-tissue-scattered events based solely on time-of-flight (TOF) information, without relying on energy data. Additionally, we explored the possibility of improving image quality by applying polarization selection criteria for true events.<br><b>Methods:</b> Due to Compton scattering within the phantom, scattered photons exhibit reduced energy, which remains unknown in our analysis. For a fixed scattering angle, the locus of th
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49

van Marle, Margreet J. E., Silvia Kloster, Brian I. Magi, et al. "Historic global biomass burning emissions for CMIP6 (BB4CMIP) based on merging satellite observations with proxies and fire models (1750–2015)." Geoscientific Model Development 10, no. 9 (2017): 3329–57. http://dx.doi.org/10.5194/gmd-10-3329-2017.

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Abstract. Fires have influenced atmospheric composition and climate since the rise of vascular plants, and satellite data have shown the overall global extent of fires. Our knowledge of historic fire emissions has progressively improved over the past decades due mostly to the development of new proxies and the improvement of fire models. Currently, there is a suite of proxies including sedimentary charcoal records, measurements of fire-emitted trace gases and black carbon stored in ice and firn, and visibility observations. These proxies provide opportunities to extrapolate emission estimates
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50

Bogdanov, Andrei Ivanovich, and Sergey Vladimirovich Kvashuk. "Analysis of the operation of the railway track in conditions of low-draining mares and high-temperature permafrost (on the example of the area of the Bureysky reservoir bypass)." Арктика и Антарктика, no. 1 (January 2022): 95–108. http://dx.doi.org/10.7256/2453-8922.2022.1.37649.

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The subject of research is the earthwork of the railway track and artificial structures on hazy weak-draining areas in the areas of permafrost distribution on the bypass of the Bureyskaya HPP reservoir within the Verkhnebureinskaya depression. The purpose is to identify the conditions and causes of adverse processes and phenomena that have arisen during operation. The objectives of the research are to identify the main causes and conditions for the manifestation of unfavorable geocryological processes and phenomena – waterlogging, flooding, stagnation of water, degradation of permafrost, sed
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