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Hunting Down Stars with Unusual Infrared Properties Using Supervised Machine Learning
. Magnificent beasts of the Milky Way: Hunting down stars with unusual infrared properties using supervised machine learning Julia Ahlvind1 Supervisor: Erik Zackrisson1 Subject reader: Eric Stempels1 Examiner: Andreas Korn1 Degree project E in Physics { Astronomy, 30 ECTS 1Department of Physics and Astronomy { Uppsala University June 22, 2021 Contents 1 Background 2 1.1 Introduction................................................2 2 Theory: Machine Learning 2 2.1 Supervised machine learning.......................................3 2.2 Classification...............................................3 2.3 Various models..............................................3 2.3.1 k-nearest neighbour (kNN)...................................3 2.3.2 Decision tree...........................................4 2.3.3 Support Vector Machine (SVM)................................4 2.3.4 Discriminant analysis......................................5 2.3.5 Ensemble.............................................6 2.4 Hyperparameter tuning.........................................6 2.5 Evaluation.................................................6 2.5.1 Confusion matrix.........................................6 2.5.2 Precision and classification accuracy..............................7 3 Theory: Astronomy 7 3.1 Dyson spheres...............................................8 3.2 Dust-enshrouded stars..........................................8 3.3 Gray Dust.................................................9 3.4 M-dwarf.................................................. 10 3.5 post-AGB -
Extremely Extended Dust Shells Around Evolved Intermediate Mass Stars: Probing Mass Loss Histories,Thermal Pulses and Stellar Evolution
EXTREMELY EXTENDED DUST SHELLS AROUND EVOLVED INTERMEDIATE MASS STARS: PROBING MASS LOSS HISTORIES,THERMAL PULSES AND STELLAR EVOLUTION A Thesis presented to the Faculty of the Graduate School at the University of Missouri In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy by BASIL MENZI MCHUNU Dr. Angela K. Speck December 2011 The undersigned, appointed by the Dean of the Graduate School, have examined the dissertation entitled: EXTREMELY EXTENDED DUST SHELLS AROUND EVOLVED INTERMEDIATE MASS STARS PROBING MASS LOSS HISTORIES, THERMAL PULSES AND STELLAR EVOLUTION USING FAR-INFRARED IMAGING PHOTOMETRY presented by Basil Menzi Mchunu, a candidate for the degree of Doctor of Philosophy and hereby certify that, in their opinion, it is worthy of acceptance. Dr. Angela K. Speck Dr. Sergei Kopeikin Dr. Adam Helfer Dr. Bahram Mashhoon Dr. Haskell Taub DEDICATION This thesis is dedicated to my family, who raised me to be the man I am today under challenging conditions: my grandfather Baba (Samuel Mpala Mchunu), my grandmother (Ma Magasa, Nonhlekiso Mchunu), my aunt Thembeni, and my mother, Nombso Betty Mchunu. I would especially like to thank my mother for all the courage she gave me, bringing me chocolate during my undergraduate days to show her love when she had little else to give, and giving her unending support when I was so far away from home in graduate school. She passed away, when I was so close to graduation. To her, I say, ′′Ulale kahle Macingwane.′′ I have done it with the help from your spirit and courage. I would also like to thank my wife, Heather Shawver, and our beautiful children, Rosemary and Brianna , for making me see life with a new meaning of hope and prosperity. -
Jpc-Final-Program.Pdf
49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit (JPC) Advancing Propulsion Capabilities in a New Fiscal Reality 14–17 July 2013 San Jose Convention Center 11th International Energy Conversion San Jose, California Engineering Conference (IECEC) FINAL PROGRAM www.aiaa.org/jpc2013 www.iecec.org #aiaaPropEnergy www.aiaa.org/jpc2013 • www.iecec.org 1 #aiaaPropEnergy GET YOUR CONFERENCE INFO ON THE GO! Download the FREE Conference Mobile App FEATURES • Browse Program – View the program at your fingertips • My Itinerary – Create your own conference schedule • Conference Info – Including special events • Take Notes – Take notes during sessions • Venue Map – San Jose Convention Center • City Map – See the surrounding area • Connect to Twitter – Tweet about what you’re doing and who you’re meeting with #aiaaPropEnergy HOW TO DOWNLOAD Any version can be run without an active Internet connection! You can also sync an Compatible with itinerary you created online with the app by entering your unique itinerary name. iPhone/iPad, MyItinerary Mobile App MyItinerary Web App Android, and • For optimal use, we recommend • For optimal use, we recommend: rd BlackBerry! iPhone 3GS, iPod Touch (3 s iPhone 3GS, iPod Touch (3rd generation), iPad iOS 4.0, or later generation), iPad iOS 4.0, • Download the MyItinerary app by or later searching for “ScholarOne” in the s Most mobile devices using Android App Store directly from your mobile 2.2 or later with the default browser device. Or, access the link below or scan the QR code to access the iTunes s BlackBerry Torch or later device Sponsored by: page for the app. -
Report 01-107 Passenger Express Train 201 Derailment Otaihanga
Report 01-107 passenger express Train 201 derailment Otaihanga (near Paraparaumu) 6 June 2001 Abstract On Wednesday, 6 June 2001, at about 1841, express passenger Train 201 Overlander derailed when a wheel on the leading axle of the trailing bogie of the power van fractured as the train approached Otaihanga Road level crossing near Paraparaumu on the North Island Main Trunk. There were no injuries to train crew or passengers and damage was limited to the trailing bogie of the power van. The safety issue identified was the suitability of the wheel set for use in passenger rolling stock. As a result of the actions taken by the operator following this incident, no safety recommendations are included in this report. Contents Abbreviations................................................................................................................................................ii Data Summary .............................................................................................................................................iii 1. Factual Information ....................................................................................................................... 1 1.1 Narrative ........................................................................................................................ 1 1.2 Personnel........................................................................................................................ 1 1.3 Locomotive controls, instruments and performance..................................................... -
Report 00-101 Train Control Incidents Hi-Rail Vehicles and Trains Occupying
Report 00-101 train control incidents hi-rail vehicles and trains occupying the same section of track and a collision various localities 17 December 1999 – 5 September 2000 Abstract On 17 December 1999, an incident occurred near Greymouth where a locomotive engineer was given permission by train control for his train to enter a section of track already occupied by a hi-rail vehicle. The driver of the hi-rail vehicle saw the train and was able to off-track in time to avert a collision. On 17 January 2000, train control gave permission for a group of hi-rail vehicles to on-track near Paerata in front of a passenger express train. The train collided with one of the hi-rail vehicles and pushed it some 300 m along the track. The hi-rail vehicle, which was unoccupied at the time, was destroyed in the collision. Another 2 incidents occurred where train control gave permission for trains to enter sections of track occupied by hi-rail vehicles: one on 14 February 2000 near St Andrews, and one on 5 September 2000 near Woodville. Neither of these 2 incidents resulted in collisions. Given the similar issues arising from each incident, all 4 were combined into this one report. Safety issues identified included: · the repeated non-adherence to basic train control techniques taught during training and covered by procedures in the operating code · inadequate auditing and assessment of train controller performance · train controllers not using, nor being required to use, signal “blocking commands” as a defence against them issuing conflicting instructions to track users · the potential for train controllers to report for duty when not fit to do so. -
Astrometrically Registered Maps of H2O and Sio Masers Toward VX Sagittarii
ARTICLE DOI: 10.1038/s41467-018-04767-8 OPEN Astrometrically registered maps of H2O and SiO masers toward VX Sagittarii Dong-Hwan Yoon1,2, Se-Hyung Cho2,3, Youngjoo Yun2, Yoon Kyung Choi2, Richard Dodson4, María Rioja4,5, Jaeheon Kim6, Hiroshi Imai7, Dongjin Kim3, Haneul Yang1,2 & Do-Young Byun2 The supergiant VX Sagittarii is a strong emitter of both H2O and SiO masers. However, previous VLBI observations have been performed separately, which makes it difficult to 1234567890():,; spatially trace the outward transfer of the material consecutively. Here we present the astrometrically registered, simultaneous maps of 22.2 GHz H2O and 43.1/42.8/86.2/129.3 GHz SiO masers toward VX Sagittarii. The H2O masers detected above the dust-forming layers have an asymmetric distribution. The multi-transition SiO masers are nearly circular ring, suggesting spherically symmetric wind within a few stellar radii. These results provide the clear evidence that the asymmetry in the outflow is enhanced after the smaller molecular gas clump transform into the inhomogeneous dust layers. The 129.3 GHz maser arises from the outermost region compared to that of 43.1/42.8/86.2 GHz SiO masers. The ring size of the 129.3 GHz maser is maximized around the optical maximum, suggesting that radiative pumping is dominant. 1 Astronomy Program, Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea. 2 Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Korea. 3 Department of Astronomy, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea. -
Table of Contents
TABLE OF CONTENTS PAGE ABOUT US (i) FACTS ABOUT DVDs / POSTAGE RATES (ii) LOOKING AFTER YOUR DVDs (iii) Greg Scholl 1 Pentrex (Incl.Pentrex Movies) 9 ‘Big E’ 32 General 36 Electric 39 Interurban 40 Diesel 41 Steam 63 Modelling (Incl. Allen Keller) 78 Railway Productions 80 Valhalla Video Productions 83 Series 87 Steam Media 92 Channel 5 Productions 94 Video 125 97 United Kindgom ~ General 101 European 103 New Zealand 106 Merchandising Items (CDs / Atlases) 110 WORLD TRANSPORT DVD CATALOGUE 112 EXTRA BOARD (Payment Details / Producer Codes) 113 ABOUT US PAYMENT METHODS & SHIPPING CHARGES You can pay for your order via VISA or MASTER CARD, Cheque or Australian Money Order. Please make Cheques and Australian Money Orders payable to Train Pictures. International orders please pay by Credit Card only. By submitting this order you are agreeing to all the terms and conditions of trading with Train Pictures. Terms and conditions are available on the Train Pictures website or via post upon request. We will not take responsibility for any lost or damaged shipments using Standard or International P&H. We highly recommend Registered or Express Post services. If your in any doubt about calculating the P&H shipping charges please drop us a line via phone or send an email. We would love to hear from you. Standard P&H shipping via Australia Post is $3.30/1, $5.50/2, $6.60/3, $7.70/4 & $8.80 for 5-12 items. Registered P&H is available please add $2.50 to your standard P&H postal charge. -
Report 07-103, Passenger Express Train 200, Collision with Stationary Passenger Express Train 201, National Park, 21 March 2007
Report 07-103, passenger express Train 200, collision with stationary passenger express Train 201, National Park, 21 March 2007 The Transport Accident Investigation Commission is an independent Crown entity established to determine the circumstances and causes of accidents and incidents with a view to avoiding similar occurrences in the future. Accordingly it is inappropriate that reports should be used to assign fault or blame or determine liability, since neither the investigation nor the reporting process has been undertaken for that purpose. The Commission may make recommendations to improve transport safety. The cost of implementing any recommendation must always be balanced against its benefits. Such analysis is a matter for the regulator and the industry. These reports may be reprinted in whole or in part without charge, providing acknowledgement is made to the Transport Accident Investigation Commission. Report 07-103 passenger express Train 200 collision with stationary passenger express Train 201 National Park 21 March 2007 Abstract On Wednesday 21 March 2007, passenger express Train 200 collided with the rear of stationary passenger express Train 201 during a planned setback manoeuvre at National Park when radio communication failed. One passenger travelling in the rear passenger carriage on Train 200 received a minor injury. The buffer at the rear of the train was damaged. A safety issue identified was the reliance, during the setback movement, on a single line of communication between the locomotive engineer and the train manager piloting the train from the rear carriage. Safety actions have been taken to address the safety issue. National Park Figure 1 Location of incident Contents Abbreviations .............................................................................................................................................. -
CSIRO Australia Telescope National Facility
ASTRONOMY AND SPACE SCIENCE www.csiro.au CSIRO Australia Telescope National Facility Annual Report 2014 CSIRO Australia Telescope National Facility Annual Report 2014 ISSN 1038-9554 This is the report of the CSIRO Australia Telescope National Facility for the calendar year 2014, approved by the Australia Telescope Steering Committee. Editor: Helen Sim Designer: Angela Finney, Art when you need it Cover image: An antenna of the Australia Telescope Compact Array. Credit: Michael Gal Inner cover image: Children and a teacher from the Pia Wadjarri Remote Community School, visiting CSIRO's Murchison Radio-astronomy Observatory in 2014. Credit: CSIRO ii CSIRO Australia Telescope National Facility – Annual Report 2014 Contents Director’s Report 2 Chair’s Report 4 The ATNF in Brief 5 Performance Indicators 17 Science Highlights 23 Operations 35 Observatory and Project Reports 43 Management Team 53 Appendices 55 A: Committee membership 56 B: Financial summary 59 C: Staff list 60 D: Observing programs 65 E: PhD students 73 F: PhD theses 74 G: Publications 75 H: Abbreviations 84 1 Director’s Report Credit: Wheeler Studios Wheeler Credit: This year has seen some very positive an excellent scorecard from the Australia Dr Lewis Ball, Director, Australia results achieved by the ATNF staff, as well Telescope Users Committee. Telescope National Facility as some significant challenges. We opened We began reducing CSIRO expenditure a new office in the Australian Resources on the Mopra telescope some five years Research Centre building in Perth, installed ago. This year’s funding cut pushed us to phased-array feeds (PAFs) on antennas of take the final step along this path, and we our Australian SKA Pathfinder (ASKAP), and will no longer support Mopra operations collected data with a PAF-equipped array for using CSIRO funds after the end of the 2015 the first time ever in the world. -
AU25: 2, 3, 4.. 50 Estrellas
ars universalis 2, 3, 4… 50 ESTRELLAS Vexilología (II): arte y ciencia de las banderas, pendones y estandartes. De arriba a abajo y de izquierda a derecha, banderas de Australia, Bosnia y Herzegovina, Burundi, Cabo Verde, China (primera columna), Dominica, Guinea Ecuatorial, Granada, Honduras, Micronesia (segunda columna), Nueva Zelanda, Panamá, Papúa Nueva Guinea, San Cristóbal y Nieves, Samoa (tercera columna), Santo Tomé y Príncipe, Eslovenia, Islas Salomón, Siria, Tayikistán (cuarta columna), Tuvalu, Estados Unidos de América y Venezuela (quinta columna). (Cortesía del autor) ste segundo artículo de Nueva Guinea, Samoa y las Islas tralia, Nueva Zelanda, Papúa la serie astrovexilológi- Salomón. Seis las de Australia y Nueva Guinea y Samoa. Las cua- ca está dedicado a veinti- Guinea Ecuatorial (en el escudo tro estrellas en la bandera de trés banderas con dos o de armas). Siete las de Grana- Nueva Zelanda son rojas y file- E 01+02 más estrellas. Dos mullets tienen da y Tayikistán (una estrella so- teadas en blanco: Ácrux ( las banderas de Panamá, San bre cada una de las siete monta- Crucis, B0.5 IV+B1 V, V = 0,76 Cristóbal y Nieves (Saint Kitts ñas con jardines de orquídeas). mag.), Mimosa ( Crucis, 훼B1 IV, and Nevis), Santo Tomé y Prín- Ocho las de Bosnia y Herzego- V = 1,25 mag.), Gacrux ( Cru- cipe y Siria, que representan los vina (en realidad, siete estrellas cis, M3.5 III, V = 훽1,64 mag.) e partidos conservadores y los li- enteras y dos medias, en una su- Imai ( Crucis, B2 IV, V =훾 2,79 berales, dos parejas de islas y la cesión supuestamente infinita; mag.). -
Taking the Measure of the Universe: Precision Astrometry with SIM
Accepted for publication in PASP, January 2008 issue A Preprint typeset using LTEX style emulateapj v. 08/22/09 TAKING THE MEASURE OF THE UNIVERSE: PRECISION ASTROMETRY WITH SIM PLANETQUEST Stephen C. Unwin1, Michael Shao2, Angelle M. Tanner2, Ronald J. Allen3, Charles A. Beichman4, David Boboltz5, Joseph H. Catanzarite2, Brian C. Chaboyer6, David R. Ciardi4, Stephen J. Edberg2, Alan L. Fey5, Debra A. Fischer7, Christopher R. Gelino8, Andrew P. Gould9, Carl Grillmair8, Todd J. Henry10, Kathryn V. Johnston11,12, Kenneth J. Johnston5, Dayton L. Jones2, Shrinivas R. Kulkarni4, Nicholas M. Law4, Steven R. Majewski13, Valeri V. Makarov2, Geoffrey W. Marcy14, David L. Meier2, Rob P. Olling15, Xiaopei Pan2, Richard J. Patterson13, Jo Eliza Pitesky2, Andreas Quirrenbach16, Stuart B. Shaklan2, Edward J. Shaya15, Louis E. Strigari17, John A. Tomsick18,19, Ann E. Wehrle20, and Guy Worthey21 Accepted for publication in PASP, January 2008 issue ABSTRACT Precision astrometry at microarcsecond accuracy has application to a wide range of astrophysical problems. This paper is a study of the science questions that can be addressed using an instrument with flexible scheduling that delivers parallaxes at about 4 microarcsec (µas) on targets as faint as V = 20, and differential accuracy of 0.6 µas on bright targets. The science topics are drawn primarily from the Team Key Projects, selected in 2000, for the Space Interferometry Mission PlanetQuest (SIM PlanetQuest). We use the capabilities of this mission to illustrate the importance of the next level of astrometric precision in modern astrophysics. SIM PlanetQuest is currently in the detailed design phase, having completed in 2005 all of the enabling technologies needed for the flight instrument. -
Schoolhouse Lofts Circa 1906
SCHOOLHOUSE LOFTS CIRCA 1906 RESPONSE FOR REQUEST FOR PROPOSALS For The Purchase And Adaptive Reuse of The Calvin Coolidge School October 3, 2019 Table of Contents Cover Letter Our Team Development Plan Proposed Site Plan Historic Preservation Plan Public Components Sustainability Estimated Timeline Financial Considerations Team Experience Resumes | References Floor Plans Appendix References Price Proposal Form Commitment Letter Forms 1-4 Certificate of Non-Collusion Certificate of Tax Compliance Certificate of Authority Real Property Disclosure Proposal Security Deposit Our Team Our team consists of two experienced development firms with complimentary skills and expertise. We are confident that our collaboration on aspects from funding to execution, combined with thoughtful design and an emphasis on placemaking, will result in an unparalleled reuse of the 12 Bancroft Street site. Civico Development Civico is a community-focused real estate investment and development group founded around a commitment to quality design, historic preservation and neighborhood-oriented infill development. Civico strives to instill an intriguing blend of innovative design and civic spirit into all of its projects. Our mission is to design and construct high quality buildings, streetscapes, and neighborhoods that significantly enhance the social livability and environmental sustainability of our communities. Our work incorporates projects of all scales, focused on walkability and human-scale development. Sustainable Comfort Sustainable Comfort, Inc. (SCI) is a Worcester-based construction, property management, and consulting firm with a focus on the green buildings and energy efficient multifamily housing industry. SCI is active throughout the Northeastern and Mid-Atlantic regions of the United States, and has nearly thirty (30) years of collective experience in development, design, construction, engineering, administration and management across the multifamily, commercial, and industrial property industries.