Relevant bibliographies by topics / Transit depth

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Transit depth'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Transit depth"

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Cherdwongsung, P., S. Awiphan, P. Kittara, K. Matan, and N. Nakharutai. "Detectability of exomoons by examining the signals from a model of transiting exoplanets with moons." Journal of Physics: Conference Series 2145, no. 1 (2021): 012009. http://dx.doi.org/10.1088/1742-6596/2145/1/012009.

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Abstract Exomoons are natural satellites of exoplanets. Nowadays, none has been confirmed. However, a number of detection techniques have been proposed, including Transit Timing Variations (TTV) and Transit Duration Variations (TDV) techniques. From a recent study, fitting observed transit with the traditional photocentric fitting model shows unique features around the primary and secondary exomoon transits in TDV and transit depth signals, which might reduce the detectability. The aim of this work is to retrieve the variation of TTV, TDV and transit depth signals of exomoon systems with the p
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Mallonn, M., K. Poppenhaeger, T. Granzer, M. Weber, and K. G. Strassmeier. "Detection capability of ground-based meter-sized telescopes for shallow exoplanet transits." Astronomy & Astrophysics 657 (January 2022): A102. http://dx.doi.org/10.1051/0004-6361/202140599.

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Meter-sized ground-based telescopes are frequently used today for the follow-up of extrasolar planet candidates. While the transit signal of a Jupiter-sized object can typically be detected to a high level of confidence with small telescope apertures as well, the shallow transit dips of planets with the size of Neptune and smaller are more challenging to reveal. We employ new observational data to illustrate the photometric follow-up capabilities of meter-sized telescopes for shallow exoplanet transits. We describe in detail the capability of distinguishing the photometric signal of an exoplan
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Alapini, Aude, and Suzanne Aigrain. "Reconstruction of the transit signal in the presence of stellar variability." Proceedings of the International Astronomical Union 3, S249 (2007): 89–92. http://dx.doi.org/10.1017/s174392130801644x.

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AbstractIntrinsic stellar variability can hinder the detection of shallow transits, particularly in space-based data. Therefore, this variability has to be filtered out before running the transit search. Unfortunately, filtering out the low frequency signal of the stellar variability also modifies the transit shape. This results in errors in the measured transit depth and duration used to derive the planet radius, and orbital inclination. We present an evaluation of the magnitude of this effect based on 20 simulated light curves from the CoRoT blind exercise 2 (BT2). We then present an iterati
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Heller, René. "Analytic solutions to the maximum and average exoplanet transit depth for common stellar limb darkening laws." Astronomy & Astrophysics 623 (March 2019): A137. http://dx.doi.org/10.1051/0004-6361/201834620.

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Context. The depth of an exoplanetary transit in the light curve of a distant star is commonly approximated as the squared planet-to-star radius ratio, (Rp/Rs)2. Stellar limb darkening, however, can result in significantly deeper transits. An analytic solution would be worthwhile to illustrate the principles of the problem and predict the actual transit signal required for the planning of transit observations with certain signal-to-noise requirements without the need of computer-based transit simulations. Aims. We calculate the overshoot of the mid-transit depth caused by stellar limb darkenin
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Oddo, Dominic, Diana Dragomir, Alexis Brandeker, et al. "Characterization of a Set of Small Planets with TESS and CHEOPS and an Analysis of Photometric Performance." Astronomical Journal 165, no. 3 (2023): 134. http://dx.doi.org/10.3847/1538-3881/acb4e3.

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Abstract The radius valley carries implications for how the atmospheres of small planets form and evolve, but this feature is visible only with highly precise characterizations of many small planets. We present the characterization of nine planets and one planet candidate with both NASA TESS and ESA CHEOPS observations, which adds to the overall population of planets bordering the radius valley. While five of our planets—TOI 118 b, TOI 262 b, TOI 455 b, TOI 560 b, and TOI 562 b—have already been published, we vet and validate transit signals as planetary using follow-up observations for four n
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Zuckerman, Anna, James R. A. Davenport, Steve Croft, Andrew Siemion, and Imke de Pater. "The Breakthrough Listen Search for Intelligent Life: Detection and Characterization of Anomalous Transits in Kepler Lightcurves." Astronomical Journal 167, no. 1 (2023): 20. http://dx.doi.org/10.3847/1538-3881/acfa6c.

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Abstract Never before has the detection and characterization of exoplanets via transit photometry been as promising and feasible as it is now, due to the increasing breadth and sensitivity of time domain optical surveys. Past works have made use of phase-folded stellar lightcurves in order to study the properties of exoplanet transits because this provides the highest signal that a transit is present at a given period and ephemeris. Characterizing transits on an individual, rather than phase-folded, basis is much more challenging due to the often low signal-to-noise ratio of lightcurves, missi
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Gondhalekar, Yash, Eric D. Feigelson, Gabriel A. Caceres, Marco Montalto, and Snehanshu Saha. "A Study of Two Periodogram Algorithms for Improving the Detection of Small Transiting Planets." Astrophysical Journal Letters 959, no. 2 (2023): L16. http://dx.doi.org/10.3847/2041-8213/ad0844.

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Abstract The sensitivities of two periodograms are compared for weak signal planet detection in transit surveys: the widely used Box Least Squares (BLS) algorithm following light curve detrending and the Transit Comb Filter (TCF) algorithm following autoregressive ARIMA modeling. Small depth transits are injected into light curves with different simulated noise characteristics. Two measures of spectral peak significance are examined: the periodogram signal-to-noise ratio (S/N) and a false alarm probability (FAP) based on the generalized extreme value distribution. The relative performance of t
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Morris, Brett M., Monica G. Bobra, Eric Agol, Yu Jin Lee, and Suzanne L. Hawley. "The stellar variability noise floor for transiting exoplanet photometry with PLATO." Monthly Notices of the Royal Astronomical Society 493, no. 4 (2020): 5489–98. http://dx.doi.org/10.1093/mnras/staa618.

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ABSTRACT One of the main science motivations for the ESA PLAnetary Transit and Oscillations (PLATO) mission is to measure exoplanet transit radii with 3 per cent precision. In addition to flares and starspots, stellar oscillations and granulation will enforce fundamental noise floors for transiting exoplanet radius measurements. We simulate light curves of Earth-sized exoplanets transiting continuum intensity images of the Sun taken by the Helioseismic and Magnetic Imager (HMI) instrument aboard the Solar Dynamics Observatory (SDO) to investigate the uncertainties introduced on the exoplanet r
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Wang, Gavin, and Néstor Espinoza. "A Blind Search for Transit Depth Variability with TESS." Astronomical Journal 167, no. 1 (2023): 1. http://dx.doi.org/10.3847/1538-3881/ad09bd.

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Abstract The phenomenon of transit depth variability offers a pathway through which processes such as exoplanet atmospheric activity and orbital dynamics can be studied. In this work we conduct a blind search for transit depth variations among 330 known planets observed by the Transiting Exoplanet Survey Satellite within its first four years of operation. Through an automated periodogram analysis, we identify four targets (KELT-8b, HAT-P-7b, HIP 65 Ab, and TrES-3b) that appear to show significant transit depth variability. We find that KELT-8b’s transit depth variability likely comes from cont
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Zhang, Michael, P. Wilson Cauley, Heather A. Knutson, et al. "More Evidence for Variable Helium Absorption from HD 189733b." Astronomical Journal 164, no. 6 (2022): 237. http://dx.doi.org/10.3847/1538-3881/ac9675.

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Abstract We present a new Keck/NIRSPEC observation of metastable helium absorption from the upper atmosphere of HD 189733b, a hot Jupiter orbiting a nearby moderately active star. We measure an average helium transit depth of 0.420% ± 0.013% integrated over the [−20, 20] km s−1 velocity range. Comparing this measurement to eight previously published transit observations with different instruments, we find that our depth is 32% (9σ) lower than the average of the three CARMENES transits, but only 16% (4.4σ) lower than the average of the five GIANO transits. We perform 1D hydrodynamical simulatio
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Dissertations / Theses on the topic "Transit depth"

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Plotnikov, Alexei. "Beiträge zur räumlich aufgelösten Analyse mittels Scanning Laserablation-ICP-Massenspektrometrie unter besonderer Berücksichtigung von Schichtsystemen und Supraleitern." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2004. http://nbn-resolving.de/urn:nbn:de:swb:14-1098260409140-71951.

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Die vorliegende Arbeit stellt die Ergebnisse der methodologischen Entwicklung räumlich aufgelöster Analyse mittels Scanning Laserablation-ICP-Massenspektrometrie dar. Eine neue Behandlung zur Quantifizierung transienter analytischer Signale wurde für die Wiederherstellung von Konzentrationsprofilen vorgeschlagen. Die Anwendung der entwickelten Modelle auf die räumlich aufgelöste Analyse mittels LA-ICP-MS ermöglicht verbesserten Informationsgewinn und lässt dadurch eine höhere räumliche Auflösung erreichen. Die Anwendbarkeit der LA-ICP-MS für die räumlich aufgelöste Bestimmung der Stöchiometrie
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Plotnikov, Alexei. "Beiträge zur räumlich aufgelösten Analyse mittels Scanning Laserablation-ICP-Massenspektrometrie unter besonderer Berücksichtigung von Schichtsystemen und Supraleitern." Doctoral thesis, Technische Universität Dresden, 2003. https://tud.qucosa.de/id/qucosa%3A24383.

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Die vorliegende Arbeit stellt die Ergebnisse der methodologischen Entwicklung räumlich aufgelöster Analyse mittels Scanning Laserablation-ICP-Massenspektrometrie dar. Eine neue Behandlung zur Quantifizierung transienter analytischer Signale wurde für die Wiederherstellung von Konzentrationsprofilen vorgeschlagen. Die Anwendung der entwickelten Modelle auf die räumlich aufgelöste Analyse mittels LA-ICP-MS ermöglicht verbesserten Informationsgewinn und lässt dadurch eine höhere räumliche Auflösung erreichen. Die Anwendbarkeit der LA-ICP-MS für die räumlich aufgelöste Bestimmung der Stöchiometrie
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Dendievel, Sarah. "Skip-free markov processes: analysis of regular perturbations." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209050.

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A Markov process is defined by its transition matrix. A skip-free Markov process is a stochastic system defined by a level that can only change by one unit either upwards or downwards. A regular perturbation is defined as a modification of one or more parameters that is small enough not to change qualitatively the model.<p>This thesis focuses on a category of methods, called matrix analytic methods, that has gained much interest because of good computational properties for the analysis of a large family of stochastic processes. Those methods are used in this work in order i) to analyze the eff
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Books on the topic "Transit depth"

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Division, United States General Accounting Office National Security and International Affairs. Department of Defense in-transit inventory. The Office, 1998.

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Division, United States General Accounting Office National Security and International Affairs. Department of Defense in-transit inventory. The Office, 1998.

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Pennsylvania. Dept. of Transportation. and United States. Dept. of Transportation., eds. Handbook for purchasing a small transit vehicle. U.S. Dept. of Transportation, 1988.

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New York (State). Metropolitan Transportation Authority. Office of the Inspector General. Review of the New York City Transit Authority's System Safety Department. The Office, 1988.

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Virginia. General Assembly. Joint Legislative Audit & Review Commission. Equity and efficiency of highway construction and transit funding. Commonwealth of Virginia, 2002.

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New York (State). Dept. of Audit and Control. Division of Management Audit, ed. New York City Transit Authority Car Equipment Department, staffing and productivity of car cleaners. The Office, 1988.

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Castañón, Adolfo. The passing of Octavio Paz (1914-1998) =: Transito de Octavio Paz (1914-1998). Mosaic Press, 2000.

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Audit, New York (State) Dept of Audit and Control Division of Management. More New York City Transit police officers could be made available to patrol the subways. The Division, 1991.

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New York (State). Division of Audits and Accounts. New York City Transit Authority, Track and Structures Department, power distribution maintenance. The Office, 1986.

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Authority, Illinois Regional Transportation, ed. Briefing book on the service boards' preliminary 1992-1996 capital plans & programs: Prepared by the Capital Program & Technology Dept. of the Regional Transportation Authority. RTA, 1991.

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Book chapters on the topic "Transit depth"

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Talafha, Mohammad F., Mashhoor A. Al-Wardat, Ammar E. M. Abdulla, and Hamid M. Al-Naimiy. "Transiting Exoplanets from Sharjah Astronomical Observatory (SAO-M47): The Exoplanet HAT-P-25 b Using L & V Filters." In Springer Proceedings in Physics. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-3276-3_1.

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Abstract In this study, we conduct a comparative analysis of observations carried out on the exoplanet HAT-P-25b at the Sharjah Astronomical Observatory (SAO). We have employed two distinct filters, namely, the Luminoso ( $$L$$ L ) and Visual ( $$V$$ V ) filters. Our research conducted aims to discern any variations in transit depth or exoplanet size resulting from the use of these different filters. The primary focus of this study is to determine the exoplanet’s size relative to its host star using the transit method. The application of different filters was expected to introduce subtle varia
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Myers, Megan Jeanette. "Writing “In Transit”: Literary Constructions of Sovereignty in Julia Alvarez’s Afterlife." In Chronotropics. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-32111-5_7.

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AbstractThe 2013 Tribunal Court ruling (TC-0168-13), known in the Dominican Republic simply as la sentencia, effectively stripped the citizenship of an approximate 200,000 Dominicans of Haitian descent. The ruling, from the Dominican Republic’s highest court, reinterpreted the constitutional use of the word “in transit” to claim that the term describes the descendants of any undocumented residents in the country, thus thrusting these individuals into statelessness. This chapter focuses on an analysis of Dominican American Julia Alvarez’s Afterlife (2020), examining how the novel reinterprets a
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Yusuf, Oluwaleke, Adil Rasheed, and Frank Lindseth. "Exploring Urban Mobility Trends Using Cellular Network Data." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69626-8_138.

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AbstractThe growth of urban areas intensifies the need for sustainable, efficient transportation infrastructure and mobility systems, driving initiatives to enhance infrastructure and public transit while reducing traffic congestion and emissions. By utilizing real-world data, a data-driven approach can provide crucial insights for urban mobility planning and decision-making. This study explores the efficacy of leveraging telecoms data from cellular network signals for studying crowd movement patterns, focusing on Trondheim, Norway. It examines routing reports to understand the spatiotemporal
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Ismail, Abdirashid A. "‘Mum, I Sleep Under a Bridge’: Everyday Insecurities of the Families of Rejected Asylum Seekers in Somalia." In IMISCOE Research Series. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24974-7_7.

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AbstractIn this chapter, I examine the impact of prolonged family separation on the families of rejected Somali asylum seekers in Europe. The focus is on the everyday security of family members left behind in Somalia. During the past 10 years, many young people have migrated from Somalia as a result of socio-political developments in the Horn of Africa. Coupled with recent policy changes in Europe, these developments have significantly increased the time migrants spend in transit countries and in Europe as rejected asylum seekers, profoundly affecting the everyday life and wellbeing of their f
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Larotonda, Marco, and Giuseppe Primiero. "A Depth-Bounded Semantics for Becoming Informed." In Software Engineering and Formal Methods. SEFM 2022 Collocated Workshops. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26236-4_29.

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AbstractWe present the three-valued modal logic DBBL-BI$$_{n}$$ to formally express information transmission among ordered agents bounded by limited access to repositories and where secrecy is admissible, viz. agents are not forced to transmit every data they possess to everyone else. The language, along with standard formulae for information holding at reachable states, includes formulae for agent and group information transmission, as well as assertion of trustworthy information. The description of information accessibility and transmission among agents is represented by formulae that hold i
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Ryu, Bikei, Koji Yamaguchi, Tatsuya Ishikawa, et al. "Maximum Nidus Depth as a Risk Factor of Surgical Morbidity in Eloquent Brain Arteriovenous Malformations." In Acta Neurochirurgica Supplement. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63453-7_14.

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AbstractBackground: Eloquent location of a brain arteriovenous malformation (BAVM) is known to increase the surgical risk. Surgical removal of such BAVMs is challenging. Useful indicators for the safe removal of eloquent BAVMs are needed. The aim of this study was to determine the surgical risk factors for these challenging entities.Methods: The authors retrospectively reviewed 29 motor and/or sensory BAVM patients who underwent surgeries. The risk factors for surgical morbidity were analyzed. As a new risk factor, maximum nidus depth, was evaluated.Results: Complete obliteration was achieved
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Herman, R. L., and H. U. Dahms. "Meiofauna communities along a depth transect off Halley Bay (Weddell Sea-Antarctica)." In Weddell Sea Ecology. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-77595-6_36.

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Bleeke, Marian. "“The Monster, Death, Becomes Pregnant:” Representations of Motherhood in Female Transi Tombs from Renaissance France." In Gender, Otherness, and Culture in Medieval and Early Modern Art. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65049-4_7.

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Taheri A., Mansoori Boroujeni H., and Zarei Darki M. "A combined supporting system for a rock cut stabilization at the Soffeh subway station and parking shaft in Esfahan, Iran." In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2009. https://doi.org/10.3233/978-1-60750-031-5-1499.

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The Soffeh station and parking is located at southern end of the Line 1 of the Esfahan mass rapid transit system. To construct this metro station and parking, a long shaft has been excavated with 460 m length, 18-50 m width and 16-18 m depth in a rock mass comprise of Jurrasic aged shale, interbedded with some sandstone layers (Shemshak Series).
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"Challenges for Diadromous Fishes in a Dynamic Global Environment." In Challenges for Diadromous Fishes in a Dynamic Global Environment, edited by Rodney G. Bradford, Jonathan W. Carr, Fred H. Page, and Fred Whoriskey. American Fisheries Society, 2009. http://dx.doi.org/10.47886/9781934874080.ch18.

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&lt;em&gt;Abstract&lt;/em&gt;.-The horizontal and vertical movements of 20 silver American eels &lt;em&gt;Anguilla rostrata &lt;/em&gt;migrating through a macrotidal estuary and bay were tracked with hydroacoustic telemetry. Eels initiated their seaward migrations around or shortly after sunset, mostly migrated at night, exhibited no bias for migration on ebb versus flood tides, and swam both with and against tidal currents with little preference for depth. Profiles of eel vertical distributions during transit through the estuary, the bay, and the tidal passages that connected the bay to the o
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Conference papers on the topic "Transit depth"

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Farnsworth, Scott R., and Norman J. Moriber. "Max, Portland's Light Rail System: Control of Stray Currents at the Source." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89236.

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Abstract The control of stray traction power current at the source has merit for any DC-powered transit system. This becomes essential where alternate approaches to control of stray current effects on nearby utility structures are limited by agreements to minimize utility relocations and replacements. This was the case with the Portland, Oregon Light Rail Transit (LRT) system known as MAX. The close proximity and shallow depth of utility structures to be left in place, coupled with utility construction techniques ill-suited to tolerate stray current accumulations, necessitated extraordinary me
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O'Connell, J., C. Costigan, F. O'Hara, and D. McNamara. "Reaching hidden depths. A correlation between small bowel capsule endoscopy transit and depth of insertion on anterograde device assisted enteroscopy." In ESGE Days 2023. Georg Thieme Verlag KG, 2023. http://dx.doi.org/10.1055/s-0043-1765430.

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Abubeker, Samrawit, and Celestin Nkundineza. "Wear Depth Analysis for Rail-Car Wheels: Case of Addis Ababa Light Rail Transit Service." In 2022 Joint Rail Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/jrc2022-78160.

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Abstract Railway transportation is a superior mean of all modes of transport. Specifically, it has gained a crucial role in limiting traffic congestion in heavily crowded regions and in reducing polluting carbon emissions. In this perspective, rolling contact fatigue of railway components is the most crucial subject because it has an important role in determining the operational reliability of the wheel/rail system. Because of wheel wear, wheel re-profiling is usually required for proper wheel-rail interaction. However, wheel re-profiling reduces the wheel radius and increase flange thickness.
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Choi, Kyungsik, Jong-Ho Nam, and Seong-Yeob Jeong. "Arctic Sea Route Transit Analysis for Large Cargo Vessels." In SNAME 9th International Conference and Exhibition on Performance of Ships and Structures in Ice. SNAME, 2010. http://dx.doi.org/10.5957/icetech-2010-173.

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The purpose of this ice transit analysis is to determine the optimum sea routes and to estimate the operation cost, transit hour, and average speed for large cargo vessels navigating in the Arctic Sea Route prior to an actual deployment of commercial cargo vessel fleet. Four different Arctic ships, such as two bulk carriers, an LNG carrier and a crude oil tanker, are selected for Northern Sea Route transit simulation. Ice and environmental information such as sea ice thickness and concentration, wind direction and wave height are gathered and their probabilistic distribution are used to carry
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Savery, Timothy. "NYC Transit Flood Resiliency: Case Studies of Recently Completed Mitigation Strategies." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.2616.

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&lt;p&gt;MTA New York City Transit (NYCT) suffered significant damage from Hurricane Sandy in 2012, and hired Arup to design flood mitigation strategies for various system vulnerabilities.&lt;/p&gt;&lt;p&gt;Arup developed innovative permanent solutions to mitigate the various system vulnerabilities identified, including working with specialty fabricators to develop products for these specific purposes in order to provide the required protection of up to 14 feet of flood depth.&lt;/p&gt;&lt;p&gt;These efforts have resulted in innovate, new, purpose driven methods of flood mitigation that were n
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Jena, Shakti P., Dayal R. Parhi, and B. Subbaratnam. "Parametric Evaluation on the Response of Damaged Simple Supported Structure Under Transit Mass." In ASME 2017 Gas Turbine India Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gtindia2017-4537.

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In the present article, the responses of a double cracked simply supported beam have been investigated. The responses of the structure are determined using Duhamel integral method numerically and validated with finite element analysis (FEA) using ANSYS WORKBENCH 2015 along with experimental verifications. The mass is moving on the structure in terms of critical speed of the structure. The normalized deflections of the structure at different damaged configurations are calculated. The influences of speed, mass, crack depth and crack location on the structures response are investigated. It is obs
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Li, Xin, Chunxi Zhu, and Yujia Zhong. "Study on land-use rail transit stations based on TOD theory." In Post-Oil City Planning for Urban Green Deals Virtual Congress. ISOCARP, 2020. http://dx.doi.org/10.47472/zqda2215.

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With the rapid development of Beijing's economy and society and the continuous expansion of urban space. In this regard, the government proposes to vigorously develop public transport, especially to increase the construction of rail transit network to solve urban transport problems. Transit-oriented development（TOD ）mode is a land development mode dominated by rail transit. Through the mixed use of land, a good walking environment is established, so as to achieve the coordination of transportation and space. This paper analyses the current situation and problems of Beijing's urban rail transit
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Biswas, Niratyay, Moumita Mukherjee, and Sayan Chatterjee. "Determination of junction depth in ion implanted millimeter wave (MMW)-transit time devices by a modified three moment approach." In 10th Jubilee International Conference of the Balkan Physical Union. Author(s), 2019. http://dx.doi.org/10.1063/1.5090249.

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Kuzmitskiy, A. V., and A. A. Kochanov. "DEPTH INTENSITY RELATION AND ANGULAR DISTRIBUTION OF THE HIGH-ENERGY ATMOSPHERIC MUONS IN WATER MEDIUM: NEW CALCULATION." In Baikal Young Scientists’ International School on Fundamental Physics. Institute of Solar-Terrestrial Physics SB RAS, 2024. http://dx.doi.org/10.62955/0135-3748-2024-51.

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One of the important tasks of high-energy astrophysics is the search for cosmic neutrinos and the determination of their sources. To solve this problem, large-volume detectors are being created – neutrino telescopes that register Cherenkov light from charged particles generated by neutrino interactions in the medium. Cherenkov light can be produced not only by muons from neutrinos or hadron showers, but also by transit atmospheric muons. Therefore, the analysis of events, recorded in neutrino telescopes, requires a thorough study of the background of muons. It is necessary to know the characte
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Wilson, S. R., and J. R. McNeil. "Ion beam figuring of steep optical surfaces." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.wc3.

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Ion beam figuring is a noncontact technique for the final shaping of precision optical components. Its use has in the past been primarily restricted to planar and near planar surfaces. To extend the application of ion beam figuring to steeply curved surfaces and surfaces with large saggital depth requires further development of the theoretical model. In this paper, the propagation and sputtering properties of the ion beam produced by a common ion source are modeled. The effects accounted for include: (1) beam current loss during transit from the ion source to the surface, (2) divergence of the
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Reports on the topic "Transit depth"

1

Mohebbi, Mehri, Sumita Raghuram, and Ahoura Zandiatashbar. Pathway to Promote Diversity within Public Transit Workforce. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2022.2135.

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There are many aspects of the transportation industry that can be focused on, but the lack of resiliency is one of the most urgent. Enhancing resiliency and creative problem-solving is essential to the industry’s growth and survival. But it cannot happen without building a more diverse workforce. Women still make up a small fraction of transportation workers, and African American and Hispanic employees are even less represented. These disparities are increasingly pronounced in many senior positions, particularly in STEM fields. Meanwhile, the public transportation industry is experiencing a se
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Chandra, Shailesh, Robert Valencia, and Vamsi Krishna Oruganti. Examining Transit Service Improvements with Internet-of-Things (IoT): A Disparity Analysis. Mineta Transportation Institute, 2024. http://dx.doi.org/10.31979/mti.2024.2330.

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Literature shows that poor service reliability of transit often leads to uncertain waiting times at transit stations, diminishing their popularity and usage, and this particularly affects low-income populations more likely to rely heavily on transit. This research delves into an in-depth analysis of the inequality assessment of the Los Angeles (LA) Metro Rail lines, with a particular focus on evaluating the potential impacts of integrating Internet of Things (IoT) technology. This study investigates how IoT could influence service connectivity, accessibility, and the existing disparities in tr
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3

Chandra, Shailesh, Robert Valencia, and Vamsi Krishna Oruganti. Examining Transit Service Improvements with Internet-of-Things (IoT): A Disparity Analysis. Mineta Transportation Institute, 2024. http://dx.doi.org/10.31979/mti.2024.2354.

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Literature shows that poor service reliability of transit often leads to uncertain waiting times at transit stations, diminishing their popularity and usage, and this particularly affects low-income populations more likely to rely heavily on transit. This research delves into an in-depth analysis of the inequality assessment of the Los Angeles (LA) Metro Rail lines, with a particular focus on evaluating the potential impacts of integrating Internet of Things (IoT) technology. This study investigates how IoT could influence service connectivity, accessibility, and the existing disparities in tr
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4

Dukelow, Fiona, Joe Whelan, and Margaret Scanlon. In transit? Documenting the lived experiences of welfare, working and caring for one-parent families claiming Jobseeker’s Transitional Payment. Institute for Social Science in the 21st Century, University College Cork, 2023. http://dx.doi.org/10.33178/10468/14485.

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This research, conducted in conjunction with One Family, set out to document the lived experiences of Jobseeker’s Transitional Payment (JST) recipients and to explore how JST is working ‘on the ground’. Because JST is a relatively new payment in the Irish social welfare system, little is known about how it is experienced by recipients. Furthermore, because people living in single parent households are consistently over-represented in poverty statistics across all metrics (at risk of poverty, enforced deprivation and consistent poverty), how caregivers in one-parent households experience a poli
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Gaskin, John, and Heidi Wadman. Extent of fluid mud : Bayport Flare and Ship Terminal, Houston, Texas : testing the effectiveness of low-frequency acoustic survey systems to define the navigable bottom. Engineer Research and Development Center (U.S.), 2024. https://doi.org/10.21079/11681/49508.

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This study utilized a suite of low-frequency acoustic mapping systems to penetrate fluid mud layers and consistently define the navigable bottom in the Bayport Flare and Ship Terminal in Houston, Texas. The objective of this study was to parameterize the suspended sediment present in the navigation channel so the Galveston District may effectively evaluate options for continuing to provide the shipping industry accurate and reliable charting information. Of special concern is relating low-frequency, single-beam acoustic survey system penetration through suspended sediments, using density and y
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Russ, W. R., J. D. Valentine, and Wei Chung. Radiological contamination penetration depth in Fernald transite panels. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/221059.

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Yagci Sokat, Kezban. Understanding the Role of Transportation in Human Trafficking in California. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2022.2108.

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Human trafficking, a form of modern slavery, is the recruitment, transport, and/or transfer of persons using force, fraud, or coercion to exploit them for acts of labor or sex. According to the International Labor Organization, human trafficking is the fastest growing organized crime with approximately $150 billion in annual profits and 40.3 million individuals trapped in slave-like conditions. While it is not compulsory to involve transportation for human trafficking, the transportation industry plays a critical role in combating human trafficking as traffickers often rely on the transportati
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Lee, Richard, David Reinke, Christopher Ferrell, Charles Rivasplata, John Eells, and Luana Chen. The Effects of the COVID-19 Pandemic on Transit in the San Francisco Bay Area. Mineta Transportation Institute, 2025. https://doi.org/10.31979/mti.2025.2313.

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This report presents the findings from our study for the California State Assembly Transportation Committee on the effects of the COVID-19 pandemic on Bay Area Transit. The study consisted of a review of the literature on the effects of the pandemic on transit in the US, a detailed look at changes in ridership and economics for Bay Area transit agencies, comparisons of Bay Area transit ridership changes to those in similar US metropolitan areas, and analysis of possible remedies to restore the financial health of Bay Area transit agencies. Bay Area transit ridership has recovered somewhat from
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Liu, X., Z. Chen, and S. E. Grasby. Using shallow temperature measurements to evaluate thermal flux anomalies in the southern Mount Meager volcanic area, British Columbia, Canada. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330009.

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Geothermal is a clean and renewable energy resource. However, locating where elevated thermal gradient anomalies exist is a significant challenge when trying to assess potential resource volumes during early exploration of a prospective geothermal area. In this study, we deployed 22 temperature probes in the shallow subsurface along the south flank of the Mount Meager volcanic complex, to measure the transient temperature variation from September 2020 to August 2021. In our data analysis, a novel approach was developed to estimate the near-surface thermal distribution, and a workflow and code
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10

Budzich, Jeffrey. PR-685-184506-R07 Scour Equations and Field Verification Methods. Pipeline Research Council International, Inc. (PRCI), 2022. http://dx.doi.org/10.55274/r0012210.

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Channel hydrology, hydraulics, and sediment composition are key variables to calculate vertical and horizontal channel movement. There are a variety of published methods available for estimating channel bed scour that were highlighted in the PRCI Phase A1 report. This report seeks to further the understanding of these methods by comparing computed scour derived from the published methods to actual measured observations in the field. Depth measurements were collected across a transect(s) at six study locations during a variety of flows over the 19-month study period (March 2020 through Septembe
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