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Sample records for leitstelle fuer fragen

  1. 20. HISTORIC VIEW OF THE VEREIN FUER RAUMSCHIFFAHRT, 1930. LEFT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    20. HISTORIC VIEW OF THE VEREIN FUER RAUMSCHIFFAHRT, 1930. LEFT TO RIGHT: RUDOLF NEBEL, FRANZ RITTER, UNKNOWN, KURT HEINISCH, UNKNOWN, HERMANN OBERTH, UNKNOWN, KLAUS RIEDEL, WERNHER VON BRAUN, UNKNOWN, KLAUS RIEDEL HOLDS EARLY VERSION OR MODEL FOR THE MINIMUM ROCKET, 'MIRAK'. - Marshall Space Flight Center, Redstone Rocket (Missile) Test Stand, Dodd Road, Huntsville, Madison County, AL

  2. Welche Fragen konnen aus einer Gemeinsamen Interpretation der Befunde aus PISA and IGLU Fundiert Beantwortet Werden? (To Which Questions Does a Combined Interpretation of the Results Yielded by both PISA and IGLU Provide Well-Grounded Answers?).

    ERIC Educational Resources Information Center

    Bos, Wilfried; Lankes, Eva-Maria; Prenzel, Manfred; Schwippert, Knut; Walther, Gerd; Valtin, Renate; Voss, Andreas

    2003-01-01

    Discusses the International Survey on Reading Abilities in Primary School (IGLU) and its data on achievement in reading, mathematics, and natural science. Compares this data to that collected by the Program for International Student Assessment (PISA). Identifies achievement relevant correlations such as gender, migration background, socioeconomic…

  3. Der Forschungsflughafen und das Institut fuer Luft- und Raumfahrtsysteme

    DTIC Science & Technology

    2007-11-02

    Broitzem: Deutsche Verkehrsfliegerschule Völkenrode: Deutsche Forschungsanstalt für Luftfahrt (DFL) Waggum: Technische Hochschule Grundsteinlegung...Forschungsflughafen Aerodata Deutsches Zentrum für Luft- und Raumfahrt DLR VW Air Services TU Braunschweig Luftfahrt -Bundesamt LBA Deutscher Aeroclub

  4. The Bernhard-Nocht-Institut fuer Schiffs- und Tropenkrankheiten Hamburg,

    DTIC Science & Technology

    PARASITES, *WORMS), (*PROTOZOA, PARASITES), (*PARASITIC DISEASES, TROPICAL REGIONS), DISEASES, FILARIAE, SCHISTOSOMA, INFECTIONS, GASTROPODA, AMOEBA, TRYPANOSOMA, LEISHMANIA, PARASITES, THERAPY, CHEMOTHERAPY , WEST GERMANY

  5. Chemical Research at the Institut fuer Strahlenchemie, Muelheim.

    DTIC Science & Technology

    1981-03-16

    distributed in microorganisms, higher plants, and animals. In plants it is found as the fully phosphorylated derivative, phytic acid . IHP is the...deoxyribonucleic acid olefin radical cation vesicles inositol hexaphosphate (IHP) photochemistry hemoglobin photochemical disinfection of water 20...OF TIS PAGE fMb 21" -. effort of the institute involves the radiation chemistry of deoxyribonucleic acid and model compounds. Described in this report

  6. Pflanzen als Naehrsubstrat fuer Cryptococcus Neoformans (Plants as a Substratum for Growth of Cryptococcus Neoformans),

    DTIC Science & Technology

    The suitability of plants as a possible substratum for growth (in vitro) of C . neoformans has been investigated. A sample of hay collected from...the second left unsterile. The samples were inoculated by flooding them with suspensions prepared from two known strains of C . neoformans . The...month and subsequently at room temperature. Discrete colonies of C . neoformans appeared after five days on samples of hay as well as of dandelion

  7. The Fringe Reading Facility at the Max-Planck-Institut fuer Stroemungsforschung

    NASA Technical Reports Server (NTRS)

    Becker, F.; Meier, G. E. A.; Wegner, H.; Timm, R.; Wenskus, R.

    1987-01-01

    A Mach-Zehnder interferometer is used for optical flow measurements in a transonic wind tunnel. Holographic interferograms are reconstructed by illumination with a He-Ne-laser and viewed by a video camera through wide angle optics. This setup was used for investigating industrial double exposure holograms of truck tires in order to develop methods of automatic recognition of certain manufacturing faults. Automatic input is achieved by a transient recorder digitizing the output of a TV camera and transferring the digitized data to a PDP11-34. Interest centered around sequences of interferograms showing the interaction of vortices with a profile and subsequent emission of sound generated by this process. The objective is the extraction of quantitative data which relates to the emission of noise.

  8. Une lecon de "Franzoesisch fuer Sie" - Niveau 1 (A Lesson of "French for You," Level 1)

    ERIC Educational Resources Information Center

    Feldhendler, Daniel; And Others

    1974-01-01

    Using as an example Lesson 12 from the text for adults, "Franzoesisch fur Sie" ("French for You") (Huber, Munich), a teaching outline addressed to language learners at the beginners' level is presented. (Text is in German.) (IFS/WGA)

  9. Lesekurse fuer Anfaenger-Fachbereich Psychologie (Reading Courses for Beginners-Psychology)

    ERIC Educational Resources Information Center

    Armaleo-Popper, Lore

    1976-01-01

    Describes a German course for psychologists, given in Italy by the author, using eight original texts by Freud and Mitscherlich. These were assigned for 40-50 hours' continuation reading at home, or were discussed in the 100-120 hours in the classroom. (Text is in German.) (IFS/WGA)

  10. Low Reflection Absorbers for Electromagnetic Waves (Reflexionsarme Absorber Fuer Elektromagnetische Wellen)

    DTIC Science & Technology

    1960-11-01

    should be briefly recalled. They consist of air sound, as a rule, of porous substances, mineral wool , glass wool, and similar substances, whose...nonreflecting room, then small particles of graphite will -17- pi m u . I be inserted into the pores of the porous glass wool or mineral wool . Such wedges

  11. Hoer-Sprech-Uebungen fuer Iraner (Aural-Oral Exercises for Iranians).

    ERIC Educational Resources Information Center

    Scharf, Kurt

    1980-01-01

    Exercises are presented as supplementary material for beginning classes. Many examples illustrate ways to consolidate the learned material, with particular reference to the textbook "Ich lerne Deutsch" and its pictures. Other exercises are designed to compare German and Farsi sentence structure. (IFS/WGA)

  12. Ein Rundfunkkurs fuer Russisch - Klasse 8 (Radio course in Russian, Course 8)

    ERIC Educational Resources Information Center

    Holjewilken, Gudrun

    1974-01-01

    Information is presented regarding the radio course, beginning in the school year 1974-1975, of 9 broadcasts on Lessons 2 through 10 of the textbook: aims, methodological design, topics, action frames, activity of the individual broadcasts. (Text is in German.) (IFS/WGA)

  13. Gesellschaft fuer angewandte Mathematik und Mechanik, Annual Scientific Meeting, Universitaet Regensburg, Regensburg, West Germany, April 16-19, 1984, Proceedings

    NASA Astrophysics Data System (ADS)

    Problems in applied mathematics and mechanics are addressed in reviews and reports. Areas covered are vibration and stability, elastic and plastic mechanics, fluid mechanics, the numerical treatment of differential equations (general theory and finite-element methods in particular), optimization, decision theory, stochastics, actuarial mathematics, applied analysis and mathematical physics, and numerical analysis. Included are major lectures on separated flows, the transition regime of rarefied-gas dynamics, recent results in nonlinear elasticity, fluid-elastic vibration, the new computer arithmetic, and unsteady wave propagation in layered elastic bodies.

  14. Gestaltung und Verwendung von Unterrichtsmittelkomplexen fuer den Russischunterricht (The Designing and Application of Instructional Units for the Teaching of Russian)

    ERIC Educational Resources Information Center

    Guenther, Klaus

    1974-01-01

    Presents bases from school policy and general characteristics of teaching-material units, the main features and elements of each of said units, and the pedagogic-methodological functions of the various parts. Presentation is based on, as an example, the teaching unit "In the department store" (Grade 9). (Text is in German.) (IFS/WGA)

  15. Gesellschaft fuer angewandte Mathematik und Mechanik, Scientific Annual Meeting, Universitaet Dortmund, West Germany, Apr. 1-4, 1986, Reports

    NASA Astrophysics Data System (ADS)

    Various papers on applied mathematics and mechanics are presented. The general topics addressed include: mechanics of fluids; numerical treatment of differential equations; optimization, decision theory, stochastics, and insurance mathematics; applied analysis and mathematical physics; and numerical analysis.

  16. Europeanization of the Hospital Markets - Opportunities and Risks for German Hospitals (Europaeisierung des Krankenhausmarkets - Chancen und Risiken fuer deutsche Krankenhaeuser)

    DTIC Science & Technology

    2004-07-06

    e Peise Dpos𔄁ln G. Neubauer: Einftihrung in die Themnatik 4 . Ausblick* 0 Bdatneut. Phase Konergetzhase oninungspolffische Opbion MIuse Diskussion mm...2180163 4.070 2W,4135 3 .004 0 12 a 4 ,. 4 e sho 426_8_48 1,10C 09M2,95 3 8 C2 -004,13 100 8 3M inovwion 3M HIS - Pan Europische Projekt-Studie Tagungsband...780 1998 1999 200 2001 2002 B SornMischeKH RPsychatmsd*KHGU Polnische Krankenhduser: Bettenkapazitaten sana M W - - 2 3 0 . M6 9 2 21.7 1 3 2 1 4 A W

  17. The Value of the German Concept of Leadership Development and Civic Education - Innere Fuehrung - in Counterinsurgency Operations

    DTIC Science & Technology

    2009-01-01

    incorrect behavior, practice modem leadership, and thus get to know their soldiers.26 11 Civic Education Politische Bildung (civic education) is not...Unterricht verantwortliche Vorgesetzte darf die Behandlung politischer Fragen nicht auf die Darlegung einer einseitigen Meinung beschriinken. Das

  18. Gesellschaft fuer angewandte Mathematik und Mechanik, Scientific Annual Meeting, Universitaet Stuttgart, Federal Republic of Germany, Apr. 13-17, 1987, Reports

    NASA Astrophysics Data System (ADS)

    Recent advances in the analytical and numerical treatment of physical and engineering problems are discussed in reviews and reports. Topics addressed include fluid mechanics, numerical methods for differential equations, FEM approaches, and boundary-element methods. Consideration is given to optimization, decision theory, stochastics, actuarial mathematics, applied mathematics and mathematical physics, and numerical analysis.

  19. Gesellschaft fuer angewandte Mathematik und Mechanik, Scientific Annual Meeting, Universitaet Stuttgart, Federal Republic of Germany, Apr. 13-17, 1987, Reports

    NASA Astrophysics Data System (ADS)

    Recent experimental, theoretical, and numerical investigations of problems in applied mechanics are discussed in reviews and reports. The fields covered include vibration and stability; the mechanics of elastic and plastic materials; fluid mechanics; the numerical treatment of differential equations; finite and boundary elements; optimization, decision theory, stochastics, and actuarial analysis; applied analysis and mathematical physics; and numerical analysis. Reviews are presented on mathematical applications of geometric-optics methods, biomechanics and implant technology, vibration theory in engineering, the stiffness and strength of damaged materials, and the existence of slow steady flows of viscoelastic fluids of integral type.

  20. Zur Frage der Textauswahl in einem Lesekurs fuer die Sozialwissenschaften (On the Question of the Choice of Textbooks in a Course in the Social Sciences)

    ERIC Educational Resources Information Center

    Apelt, Hans-Peter

    1974-01-01

    Passages from three selected samples of textbooks are used to show what requirements are made of textbooks in the social sciences. Some hints are given to the teacher for converting reading suggestions into instructional material. Short texts from Karl Marx are also suggested. (Text is in German.) (IFS/WGA)

  1. Sichere Sprachkenntnisse als Grundlage fuer eine hoehere Qualitaet der Koennensentwicklung.2 (Secure Language Knowledge as a Basis for a Higher Quality of Skill Development. 2)

    ERIC Educational Resources Information Center

    Guenther, Klaus

    1974-01-01

    Topics are: questions regarding intensive learning, awareness of goals and methods as a pre-requisite for effective pupil activity, exposition of typical pupil activity and suggestions for meaningful homework assignments. Examples are given. (Text is in German.) (IFS/WGA)

  2. Sichere Sprachkenntnisse als Grundlage fuer eine hoehere Qualitaet der Koennensentwicklung. 1 (Secure Language Knowledge as a Basis for a Higher Quality of Skill Development. 1)

    ERIC Educational Resources Information Center

    Guenther, Klaus

    1974-01-01

    Topics are: aspects in the systematic acquisition of firm, lasting and ready-to-use knowledge and skill as a basis of instruction; nature of language knowledge; the dialectic of knowledge acquisition and the development of skill; intensive learning; and the design of vocabulary drill units. (Text is in German.) (IFS/WGA)

  3. The Development of Primary Cell Batteries for Torpedoes and Midget Submarine in Germany (Die Entwicklung von Primaerelementbatterien fuer Torpedos und Kleinst-U-Boote in Deutschland),

    DTIC Science & Technology

    1982-10-05

    It was decided to build the Mg-C battery on the principle of the Voltaic pile . Such a battery was fabri- cated by the TVA in which discs with a 400...wakeless torpedo was developed during the First World War by the Siemens Company. There it was their goal initially to produce a remote-controlled torpedo...3 air bottles of 5 1 each (200 atm) 7. Additional air container 8. Removable vertical fins 2 .......................... ....... ;, , At first it was

  4. Ausdruckskraft und Regelmaessigkeit: Was Esperanto fuer automatische Uebersetzung geeignet macht (Expressiveness and Formal Regularity: What Makes Esperanto Suitable for Machine Translation).

    ERIC Educational Resources Information Center

    Schubert, Klaus

    1988-01-01

    Describes DLT, the multilingual machine translation system that uses Esperanto as an intermediate language in which substantial portions of the translation subprocesses are carried out. The criteria for choosing an intermediate language and the reasons for preferring Esperanto over other languages are explained. (Author/DJD)

  5. 25 Jahre - Institut fuer Geodaesie, Teil 1: Wissenschaftliche Beitraege und Berichte (25 Years - Institute of Geodesy, Part 1: Scientific Contributions and Reports)

    DTIC Science & Technology

    2000-01-01

    des Dispersionswinkels zur Bestimmung der Refraktion. AVN 100, S. 51-62, 1993 HAMMING, R., W.: Digitale Filter. VCH-Verlag, Weinheim 1987 HAMPEL, F...KRONMOLLER, H.: Digitale Signalverarbeitung. Springer-Verlag, Berlin 1991 KUHLMANN, H.: Ein Beitrag zur Oberwachung von Briickenbauwerken mit...1987), das Europdische Referenzsystem - EUREF (SEEGER/ALTINER/ENGELHARDT/FRANKE/HABRICH/SCHLC- TER 1998) und das Sistema di Referencia del America del

  6. 25 Jahre - Institut fuer Geodaesie, Teil 2: Forschungsarbeiten und Veroeffentlichungen (25 Years - Institute of Geodesy, Part 2: Research Areas and Publications)

    DTIC Science & Technology

    2000-01-01

    Festpunktfeld Ruanda - 1992 - SIRGAS ( Sistema de refer6ncia geocdntrico para Amdrica del Sur) - 1995 - Festpunktfeld Per6 - 1996 Die DOENAV-Kampagne...Forschungsschwerpunkte Mit dem Sistema di Referdncia Geoc6ntrico para a Amd~rica do Sul (SIRGAS) wurde 1995 in einer Gerneinschaftsaktion aller... digitaler Form gespei- chert werden. Aus demn dabei anfallenden redundanten Datensatz erhalt man im Wege einer Ausgleichung den H6henunterschied

  7. 25 Jahre - Institut fuer Geodaesie, Teil 3: Aus dem Leben des Instituts (25 Years - Institute of Geodesy, Part 3: The Life of the Institute)

    DTIC Science & Technology

    2000-01-01

    seit 1995 Dezernatsleiter fOr digitale Kartographie am Landesvermessungsarnt Thiringen in Erfurt Dipl.-Ing. Chengzu Li * geboren 1946 in Chengdu, VR...UniversitUit Berlin, geleiteten Projekte Dl1, D2 und D6 des DFG-Sonderforschungsbereichs 69 waren Dl: die digitale Bildklassifizierung und -interpretation...Messkampagne bei der Einrichtung eines ganz SUid- amerika Oberdeckenden geodditischen Bezugssystems ( Sistema de Referencia Geocentrico para America del

  8. Ausbildung in der Arbeit mit dem Sprachlabor fuer Lehramtskandidaten der Anglistik. Ein Erfahrungsbericht (Training in Language Laboratory Work for English Teacher Candidates. A Report on an Experience)

    ERIC Educational Resources Information Center

    Gorbahn, Adeline; Wilpert, Klaus

    1975-01-01

    Reports on work at the University of Erlangen beginners' seminar on language laboratory work. This led to production of original laboratory exercises, which were tried out in a Gymnasium class. The aim was to introduce teacher candidates early to problems attending the introduction of language laboratories. (Text is in German.) (IFS/WGA)

  9. Materialien und Modelle fuer den Franzoesischunterricht in der Sekundarstufe Zwei (Materials and Models for Teaching French in Grades 11-13)

    ERIC Educational Resources Information Center

    Frei, Alfons

    1978-01-01

    Texts available for French courses in the highest grades are listed according to topics, which include: position of women, today's youth, the language of advertising, French colonialism, holidays and tourism, modern city living, criminality, French politics. Hints for the teacher are included. (Text is in German.) (IFS/WGA)

  10. Right-Wing Extremism in Germany and the Consequences for the Armed Forces (Rechtsextreme orientierungen in deutschland und ihre folgen fuer die bundeswehr)

    DTIC Science & Technology

    2001-06-01

    religi~ iser Gruppen, von denen naturgemai3 nicht alle den Einsatz fremder Streitkrafte in ihrem Staatsgebiet begrtiffen. Ober die Untergrabung von...Miinster/Westfalen. St~Sss, Richard (1994): Forschungs- und Erklarungsansatze - emn Oberblick. In: Kowalski, Wolfgang ; Schr6der, Wolfgang (Hrsg

  11. Schulgrammatik und Fachgrammatiken: Fuer eine differenzierte Konzeption der didaktischen Grammatik (School Grammar and Scientific Grammar: Toward a Differentiated Concept of Didactic Grammar).

    ERIC Educational Resources Information Center

    Lehmann, Volkmar

    1979-01-01

    Defines the practical functions of various types of grammars, and theoretical functions of linguistic grammars. Points out some differences between the two (stressing contrast between native and foreign languages), as well as differences in defining, finality, or variation of categories, and in psycho- and sociolinguistic components. (IFS/WGA)

  12. Eine aussichtsreiche Lehrmethode fuer fachspezifische Kurse am Ende des zweiten Jahres (A Promising Teaching Method for Content-Area Course at the End of the Second Year).

    ERIC Educational Resources Information Center

    Murti, Kamakshi P.

    1988-01-01

    A course for Business German teaches strategies of textual analysis to develop in the students the reading skills necessary to recognize unfamiliar vocabulary and concepts by using known vocabulary. The course is designed both for students of German without a business background and for business students without knowledge of German. (DJD)

  13. Briefkasten oder Brieftaube? Zur Auswahl der Lexik in amerikanischen Deutschlehrwerken fuer die Grundstufe. ("Mailbox" or "Carrier Pigeon"? Selecting Vocabulary for American College-Level Elementary German Textbooks).

    ERIC Educational Resources Information Center

    Bolton, Sibylle

    A comparison of four college-level elementary German textbooks reveals significant differences in the numbers of vocabulary entries in each textbook. Further comparison of three of the textbooks with the basic German vocabulary lists provided in "Kontaktschwelle Deutsch als Fremdsprache" and in "Das Zertificat Deutsch als Fremdsprache" reveal in…

  14. Development of a competency-based formative progress test with student-generated MCQs: Results from a multi-centre pilot study.

    PubMed

    Wagener, Stefan; Möltner, Andreas; Tımbıl, Sevgi; Gornostayeva, Maryna; Schultz, Jobst-Hendrik; Brüstle, Peter; Mohr, Daniela; Vander Beken, Anna; Better, Julian; Fries, Martin; Gottschalk, Marc; Günther, Janine; Herrmann, Laura; Kreisel, Christian; Moczko, Tobias; Illg, Claudius; Jassowicz, Adam; Müller, Andreas; Niesert, Moritz; Strübing, Felix; Jünger, Jana

    2015-01-01

    Einleitung: Progresstests geben Studierenden Feedback über ihren Wissenszuwachs im Verlauf ihres Studiums. In der medizinischen Ausbildung haben Peer-assisted-learning und kompetenzbasierte Ausbildung zunehmend Bedeutung erlangt. Während Progresstests sich als longitudinales Feedback-Instrument bewährt haben, gibt es bisher keine Progresstests, die in Zusammenarbeit mit Studierenden erstellt wurden und die die Kompetenzorientierung der medizinischen Ausbildung aufgreifen.In dieser Studie soll zum einen untersucht werden, inwieweit Studierende in die Prüfungsentwicklung eines Progresstests eingebunden werden können und zum anderen soll gezeigt werden, dass sich die Wissensaspekte von Kompetenzen in einem kompetenzorientierten Progresstest abbilden lassen.Methoden: Für den kompetenzorientierten Progresstest wurde ein zweidimensionaler „Blueprint“ für 144 MC-Fragen mit gruppierten medizinischen Fächern und gruppierten Kompetenzbereichen von drei Expertengruppen erstellt. An der Entwicklung des kompetenzorientierten Progresstests haben sich 31 Studierende aus sieben medizinischen Fakultäten in Deutschland aktiv beteiligt. Nach einem intensiven und umfassenden Schulungsprogramm erstellen und reviewten die Studierenden unter Nutzung einer eigenständigen Plattform des ItemManagementSystems die Prüfungsfragen des kompetenzorientierten Progresstests. Der kompetenzorientierte Progresstest wurde im November 2013 an acht medizinischen Fakultäten in Deutschland als formativer Test im Rahmen einer Pilotstudie durchgeführt, an dem 469 Studierende teilnahmen. Die erzielten Punktwerte wurden für den Gesamttest sowie in differenzierter Form für die „Fächergruppen“ und „Kompetenzbereiche“ analysiert. Ergebnisse: Für den Piloteinsatz im Jahr 2013 wurde von den Studierenden ein MC-Fragenpool von über 200 MC-Fragen entwickelt. 118 MC-Fragen von Studierenden wurden im Progresstest verwendet. 26 MC-Fragen wurden von Dozenten insbesondere im Bereich

  15. Characteristics of service requests and service processes of fire and rescue service dispatch centers: analysis of real world data and the underlying probability distributions.

    PubMed

    Krueger, Ute; Schimmelpfeng, Katja

    2013-03-01

    A sufficient staffing level in fire and rescue dispatch centers is crucial for saving lives. Therefore, it is important to estimate the expected workload properly. For this purpose, we analyzed whether a dispatch center can be considered as a call center. Current call center publications very often model call arrivals as a non-homogeneous Poisson process. This bases on the underlying assumption of the caller's independent decision to call or not to call. In case of an emergency, however, there are often calls from more than one person reporting the same incident and thus, these calls are not independent. Therefore, this paper focuses on the dependency of calls in a fire and rescue dispatch center. We analyzed and evaluated several distributions in this setting. Results are illustrated using real-world data collected from a typical German dispatch center in Cottbus ("Leitstelle Lausitz"). We identified the Pólya distribution as being superior to the Poisson distribution in describing the call arrival rate and the Weibull distribution to be more suitable than the exponential distribution for interarrival times and service times. However, the commonly used distributions offer acceptable approximations. This is important for estimating a sufficient staffing level in practice using, e.g., the Erlang-C model.

  16. Emerging German Security Policy - The Dispute on ’Out of Area’ Employments

    DTIC Science & Technology

    1992-03-12

    nationalen Tugend", Die Welt. (12 March 1991). Also: Ronald D. Asmus. "Fragen unter Freunden". Die Zeit. (Nr 8, 15 February 1991), 4, 7 Joachim Sobotta ...January 1992. Ruehl, Lothar. "Wie halten es die Deutschen mit der Buendnispflicht?". Die Welt. 28 December 1991. 41 Sobotta . % achim. "Schluss mit dem

  17. Physik gestern und heute: Fragwürdiges beim Millikan-Versuch

    NASA Astrophysics Data System (ADS)

    Heering, Peter

    2006-09-01

    Robert A. Millikan erhielt 1923 als erster amerikanischer Physiker den Nobelpreis für Physik. Geehrt wurde er für seine Präzisionsmessungen zum Photoeffekt und zur experimentellen Bestimmung der elektrischen Elementarladung. Millikans Experimente zur Elementarladung sind auch heute noch ein Standardthema im schulischen Physikunterricht, gleichzeitig werfen sie aber eine Reihe von wissenschaftstheoretischen und ethisch relevanten Fragen auf.

  18. Multiparticle Entanglement and Spatial Addressability of Ultracold Atoms in Optical Lattices

    DTIC Science & Technology

    2009-02-01

    Immanuel F. Bloch Stefan Kuhr Johannes Gutenberg-University Mainz Institute Fuer Physik/Quantum Mainz, Germany 55099 EOARD GRANT 07-3090...PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Johannes Gutenberg University Mainz Institute Fuer Physik/Quantum Mainz, Germany 55099 8...Entanglement and Spatial Addressability of Ultracold Atoms in Optical Lattices Prof. Dr. Immanuel Bloch Dr. Stefan Kuhr Johannes

  19. Preaward Evaluation and Responsibility Determination of Foreign Contractors.

    DTIC Science & Technology

    1988-12-01

    3 Contractor Country Contract Number Bundesamt Fuer Wehrtechnik FRG DAJA3786C0326 Bundesamt Fuer Wehrtechnik FRG F6154686D0022 Construcciones ...Aeronauticas SA Spain F0960385C0006 Construcciones Aeronauticas SA Spain F4260086C6464 Daimler Benz AG FRG DAJA3778GOO11 Eaton Corp. FRG F0960382D0663

  20. Utopische Literatur im Leistungskurs Englisch. Vorschlaege fuer Planung und Durchfuehrung eines halbjaehrigen Kurses (Utopian Literature in the English Honors Course. Suggestions for Planning and Teaching a Half-Year Course)

    ERIC Educational Resources Information Center

    Schnitter, Helmut

    1976-01-01

    Gives prerequisites for participation, editions of texts used (Orwell, "1984"; Huxley, "Brave New World"; More, "Utopia") and mentions auxiliary materials. After listing aims of the course, gives suggestions as to method and organization of the course. Sketches various phases of discussion and forms for checking on…

  1. "Deutsch ist doch keine Fremdsprache!" - Ausbildungsgaenge fuer Lehrer auslaendischer Kinder an deutschen Schulen ("But German is not a Foreign Language!" Training for German Teachers of Foreign Children in German Schools)

    ERIC Educational Resources Information Center

    Reich, Hans H.

    1976-01-01

    Children of foreign workers in Germany have a language problem differing from that of German children studying (e.g.) English. With the goal of integrating the foreign children into German life, teachers with certain qualities and skills are needed. An appropriate teachers' training course is described. (Text is in German.) (IFS/WGA)

  2. Bouchon d’oreille a attenuation active adaptee aux bruits d’helicoptere (Ear Plugs for Active Attenuation Adapted for Helicopter Noises) (Gehoerschutzstopsel mit aktriver Daempfung, geeignet fuer Hubschrauberlaerm)

    DTIC Science & Technology

    2006-04-01

    Hubschrauberharm RWsum6 Le spectre du bruit d’un h~licopt~re se compose de deux parties bien distinctes. La premi~re est une composante basses frquences...61ectrique comme haut-parleur. Avec cc type d’t6metteur, on parties bien distinctes. La premiere est une composante arrivait A obtenir une...d’augmenter la vitesse de convergence. Pour le syst~me les signaul y1 n dr etr Pournl sont dtcm in fedack, de dimnl inue feedforward on a choisi

  3. Grundlagen der Organisationsgestaltung

    NASA Astrophysics Data System (ADS)

    Spath, Dieter; Koch, Steffen

    In diesem Kapitel werden Grundlagen der Organisationsgestaltung dargestellt. Es scheint nahe liegend, diese Inhalte wie in einem Lehrbuch aufzubereiten. Schließlich handelt es sich um grundlegende Inhalte. Die Neufassung dieses Abschnitts ist aber stärker für Verantwortliche in Unternehmen geschrieben und weniger wissenschaftlich geprägt. Das "Lehrbuchwissen“ wird daher bewusst knapp gehalten. Das betrifft z.B. die Klärung des Organisationsbegriffes und die Fragen nach den Zielsetzungen und den Gestaltungsbereichen von Organisation. Stattdessen widmet sich das Kapitel ausführlicher den Fragen, ob es Trends in der Organisationsgestaltung gibt, welche wichtigen Einflussgrößen existieren und welche übergeordneten und beständigen Leitlinien es gibt.

  4. Zwergsatelliten und Sternriesen

    NASA Astrophysics Data System (ADS)

    Baade, Dietrich; Kuschnig, Rainer

    2017-03-01

    Leuchtkräftige Sterne sind schwierig: Fär Fotometrie mit großen Teleskopen sind sie zu hell, und ihre geringe Zahl macht konventionelle Lösungen unwirtschaftlich, besonders im Weltraum, wo die äußerste Präzision gegeben wäre. Mit einer Mini-Armada von Nanosatelliten haben Ingenieure und Astronomen aus Kanada, Österreich und Polen nun die Lösung gefunden - auch schon für viele wissenschaftliche Fragen.

  5. Increase in medical knowledge during the final year of undergraduate medical education in Germany.

    PubMed

    Raupach, Tobias; Vogel, Daniela; Schiekirka, Sarah; Keijsers, Carolina; Ten Cate, Olle; Harendza, Sigrid

    2013-01-01

    Zielsetzung: In Deutschland besteht das letzte Jahr des Studiums der Humanmedizin ("Praktisches Jahr", PJ) aus drei Tertialen von je 16 Wochen, von denen eines in der Inneren Medizin und eines in der Chirurgie abzuleisten ist. Die Fachrichtung des dritten Tertials von 16 Wochen kann von den Studierenden frei gewählt werden. Während des Praktischen Jahres findet keine gezielte Vorbereitung auf den schriftlichen Teil des Staatsexamens statt. Es ist unklar, inwieweit die Studierenden während des Praktischen Jahres auch neue Wissensinhalte erlernen. Ziel dieser Studie war es, zu Beginn und am Ende des Praktischen Jahres Wissensinhalte zu überprüfen. Methodik: Zehn Absolventen des Medizinstudiums in Deutschland und den Niederlanden trafen eine Auswahl aus 300 vorselektierten Fragen der US-amerikanischen Abschlussprüfung (USMLE), die zehn verschiedenen Fachrichtungen zugeordnet waren. Die ausgewählten 150 Fragen wurden im Rahmen zweier Tests PJ-Studierenden aus Göttingen und Hamburg vorgelegt: einmal zu Beginn (n=77 Studierende) und einmal am Ende des Praktischen Jahres (n=79). Ergebnisse: Die interne Konsistenz der beiden Tests (Cronbach’s α) betrug 0,75 (Prätest) bzw. 0,68 (Posttest). Der Anteil richtig beantworteter Fragen betrug im Prätest 63,9±6,9 und im Posttest 69,4±5,7 (p<0,001; Effektstärke als Cohen’s d: 0,87). Individuelle Studierende schnitten bei denjenigen Fragen besonders gut ab, die sich auf Inhalte ihres Wahlfachs bezogen.Schlussfolgerung: Der in dieser Studie verwendete Wissenstest eignet sich als externes Instrument zur Messung des Wissenszuwachses von Studierenden im Praktischen Jahr. Zudem kann der Prätest genutzt werden, um Studierende bei der Planung ihres Lernverhaltens während des Praktischen Jahres zu unterstützen.

  6. Non-Destructive Impermeability Testing of Land-Based Sewage Systems (zerstoerungsfreie dichtheitspruefung con grundstuecksentwaesserungsleitungen)

    DTIC Science & Technology

    2001-01-01

    STOTZEK, A. (1999): Kommunales Abwasser. 4. Aufl. Essen: Vulkan-Verlag. KRAUTH , K . H.; KLEiN, H. (1982): Untersuchungen Uber die Beschaffenheit des...Prototyp, mit dem solche Prii- fungen durchgeftihrt und die oben genannten Wasserverluste zuverldissig gemessen werden k •innen. Beide Fragen wurden...11 2.2 " G eraite - K om ponenten und M esstechnik ........................................................................ ........... 13 2.2.1

  7. 18. HISTORIC VIEW OF MAX VALIER, FOUNDING MEMBER OF THE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. HISTORIC VIEW OF MAX VALIER, FOUNDING MEMBER OF THE VEREIN FUER RAUMSCHIFFAHRT (GERMAN SOCIETY FOR SPACE TRAVEL), DRIVES HIS ROCKET CAR IN 1931. - Marshall Space Flight Center, Redstone Rocket (Missile) Test Stand, Dodd Road, Huntsville, Madison County, AL

  8. Source Hierarchy List. Volume 3. O through Z

    DTIC Science & Technology

    1994-07-01

    PHOTOGRAMMETRY 02 TECHNISCHE UNIV GRAZ (AUSTRIA) DEPT OF PHOTOGRAPHY* 01 TECHNISCHE UNIV GRAZ (AUSTRIA) INST FUER DIGITALE BILBERARBEITUNG IN...UNIVERSIDAD NACIONAL AUTCHOMA DE MEXICO MEXICO CITY CEWTRO DE IHVESTIGACION EN MATEMATICAS APLICADAS/ SISTEMAS * Of UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO

  9. Military Periodicals.

    DTIC Science & Technology

    1983-05-01

    per year) ICDM of North America, Inc. 2065 Martin Avenue, Ste. 104 Santa Clara, California 95050 Executive Editor: Rosalyn 0. Barry $36.00 NCOA...Djurgaardsslatten 92 115 21 Stockholm, Sweden Telephone: 08-782 56 10 Editor: Hans Ulfhielm Kr. 30 Militaer Geschichte (6/yr) Institut Fuer Deutsche ... Deutsche Gesellschaft fuer Heereskunde e.v. Augustin-Wibbelt Strasse 8 4720 Beckum, West Germany DM.60 Znamenosets (M) (Formerly Starshina

  10. Modifications to Army Facilities Components System Drawings to Reflect Use of Metric-Sized Lumber.

    DTIC Science & Technology

    1986-09-01

    2040 x 915 PHENAPAN DEUTSCHE NOVOPAN SP ISO-Verle- NSCM: XN003 geplatte V 100 - 00-V02-473! 19.0 2050 x 925 2040 x 915 ditto ditto Si: - 00-V02-4732...use: Build-in furniture Spanplatte, beide Seiten geschliffen, Gueteklasse I-I Verwcndungszweck: Fuer Einbaumoebel CODE 5530 Staerke Abmessungen...laminated, flat pressed, both sides sanded, for general purpose; DIN 68761 Holzspanplatte (Flachpressplatte), beide Seiten geschliffen, fuer allgemeine

  11. Vom Referat bis zur Examensarbeit: Naturwissenschaftliche Texte perfekt verfassen und gestalten

    NASA Astrophysics Data System (ADS)

    Kremer, Bruno P.

    Welches Thema eignet sich für mein Referat oder meine Seminararbeit? Wie sammle ich Stoff? Wie gliedere ich den Text? Bruno P. Kremer beantwortet auf nur 200 Seiten alle wichtigen Fragen zur wissenschaftlichen Arbeit in den naturwissenschaftlichen Fächern. Dabei beschränkt er sich auf das für Studenten und Schüler wirklich notwendige Wissen und lässt jeglichen unnützen Ballast beiseite. Dieser praktische Ratgeber verhilft Ihnen zur erfolgreichen wissenschaftlichen Arbeit - vom Referat bis zur Examensarbeit.

  12. [A meta-analysis of the effectiveness of gestalt therapy].

    PubMed

    Bretz, H J; Heekerens, H P; Schmitz, B

    1994-01-01

    This metaanalytical assessment of evaluation research in the field of Gestalt therapy has been conducted on the basis of 38 studies which took place between 1970 and 1986. Its scope is substantially broader than the metaanalysis of Smith, Glass and Miller (1980) or the secondary analysis of Grawe's Berner Workgroup documented in Forschungsgutachten zu Fragen eines Psychotherapeutengesetzes (1991). The results indicate Gestalt therapy to be an effective psychotherapeutic treatment which is not inferior to other comparable methods of treatment. No definitive statement can be made concerning differential indication, individual therapy setting or long-term measures.

  13. DFVLR/FAA (Deutsche Forschungs-und Versuchsanstalt fuer Luft und Raumfahrt/Federal Aviation Administration) Propeller Noise Tests in the German-Dutch Wind Tunnel DNW. Appendix V. The Effect of Propeller Disc-Plane Attitude (Propeller 2: Thickness 8.5%, Square Tip-Shape),

    DTIC Science & Technology

    1986-01-01

    100 PlX 1. ul -100 cl -200 0L a- -300 -400 -i PMIN= -340.2 -500 1 .0 .5 1.0 TIME - REV. 120 AVERAGE (70) P IOWER SPECTRUM OF= 11 .2 Hz 110 00 0...268 4: 3.60 T: 288.6 K, AVERAGE (68) TIME HISTOPY (AP < 56 %) PMAX= 60.9 50 -- ,’-qJ .. 50 TIME- 0 ul -50 Lu a., -,,ɜ - Io -200 r18 . .0 .5 1.0 TIME

  14. Allgemeine Sprachfaehigkeit und Fremdsprachenerwerb. Zur Struktur von Leistungsdimensionen und linguistischer Kompetenz des Fremdsprachenlerners (General Language Ability and Foreign Language Acquisition. On the Structure of Performance Dimensions and the Linguistic Competence of the Foreign Language Learner). Diskussions beitraege aus dem Institute fuer Bildungsforschung, No. 1.

    ERIC Educational Resources Information Center

    Sang, Fritz; Vollmer, Helmut J.

    This study investigates the theoretical plausibility and empirical validity of the assumption that all performance in a foreign language can be traced back to a single factor, the general language ability factor. The theoretical background of this hypothesis is reviewed in detail. The concept of a unitary linguistic competence, interpreted as an…

  15. Comprehension through cooperation: Medical students and physiotherapy apprentices learn in teams - Introducing interprofessional learning at the University Medical Centre Mannheim, Germany.

    PubMed

    Mette, Mira; Dölken, Mechthild; Hinrichs, Jutta; Narciß, Elisabeth; Schüttpelz-Brauns, Katrin; Weihrauch, Ute; Fritz, Harald M

    2016-01-01

    Zielsetzung: Um zukünftige Fachkräfte in der Patientenversorgung besser auf die interprofessionelle Zusammenarbeit vorzubereiten, wurden an der Universitätsmedizin Mannheim interprofessionelle Lerneinheiten für Medizinstudierende und Physiotherapieschüler entwickelt. Die Erfahrungen aus der Konzeption, Implementierung und Evaluation dieser Lerneinheiten werden dargestellt und diskutiert.Methoden: An 5 interprofessionellen Lerneinheiten nahmen 265 Medizinstudierende und 43 Physiotherapieschüler teil. Von diesen beantworteten 87-100% im Rahmen der Lehrveranstaltungsevaluation geschlossene und offene Fragen eines selbstentwickelten Fragebogens (24 Items). Die Antworten zu selbstberichtetem Lernzuwachs, Nutzen, Motivation und Zufriedenheit mit der Lerneinheit wurden nach Profession getrennt ausgewertet.Ergebnisse: Die Lerneinheiten wurden von beiden Teilnehmergruppen gut angenommen. Mehr als 75% aller Teilnehmer waren der Meinung, dass sie sich die neuen Lerninhalte nicht anderweitig besser hätten aneignen können. Signifikante Unterschiede zwischen Medizinstudierenden und Physiotherapieschülern gab es vorrangig beim empfundenen Lernzuwachs, den die Physiotherapieschüler als geringer angaben.In den offenen Fragen wurden am häufigsten interprofessionelle Aspekte positiv hervorgehoben. Kritisiert wurden am häufigsten organisatorische Punkte und der als gering empfundene Lernzuwachs.Schlussfolgerung: Die Einführung von interprofessionellem Lernen ist durch organisatorische Herausforderungen sehr aufwändig. Es ist aber lohnenswert, da die interprofessionellen Aspekte der Lerneinheiten von den Teilnehmern als wertvoll angesehen wurden. Anzustreben ist deshalb eine curriculare Verstetigung und Erweiterung interprofessionellen Lernens zu einem longitudinalen Strang.

  16. Mission in the East: The Building of an Army in a Democracy in the New German States

    DTIC Science & Technology

    1994-06-01

    tendency for NV A veterans to deny complicity in the SED regime. Some of them are attempting to rationalize their previous actions in the light of... Hannelore Kaeber and Bernard Tripp (Bonn: Bundeszentrale fuer politische Bildung, 1 984) , p. 261 . 1 2 . Paragraph 8, "Soldatengesetz," p. 26 1

  17. Classification of Complex Nonspeech Sounds. Panel on Classification of Complex Nonspeech Sounds

    DTIC Science & Technology

    1989-04-14

    Society of North America, the Society for Numerical Taxonomy, the British Classification Society, Gesell - schaft fuer Klassification, the Japan...Stevens. £.T. Sandel, and J.B. Arnold 1962 On the learning of speech-like vocabularies. Journal of Verbal Learning and Verbal Behavior 1:133-143. Houtgast

  18. EMC (Electromagnetic Compatibility) Standards Handbook. Revision 4,

    DTIC Science & Technology

    1982-11-01

    Regulations arc prepared EMC November 1982 3-2 STANDARDS HANDBOOK REVISION DATE SECTION-PAGE by VDE Standards Committees (VDE Normen Ausschuss). Individual...regulation has a well- % publicized review that is coordinated with the German Standards Institute (Deutches Institute fuer Normen , DIN) and the German

  19. BKG/DGFI Combination Center Annual Report 2012

    NASA Technical Reports Server (NTRS)

    Bachmann, Sabine; Loesler, Michael; Heinkelmann, Robert; Gerstl, Michael

    2013-01-01

    This report summarizes the activities of the Federal Agency for Cartography and Geodesy (Bundesamt fuer Kartographie und Geodaesie, BKG) and the German Geodetic Research Institute (Deutsches Geodaetisches Forschungsinstitut, DGFI)BKG/DGFI Combination Center in 2011 and outlines the planned activities for the year 2012. The main focus was to stabilize outlier detection and to update the Web presentation of the combined products.

  20. A Model to Transform NATO’s Operational Level Military Capabilities

    DTIC Science & Technology

    2008-05-01

    Dr. Matthias Dembinski leads a project “The International Organization for a Democratic Peace” funded by the German Society for Peace Research...32 Martin Dembinski , Eine Zukunft fuer die NATO, (Frankfurt, Germany: Hessische Stiftung...to restore and maintain the security of the North Atlantic Area. .. .” 34 Dembinski , 5. 35 The EU sees the use of military in the lower end of

  1. Rheological Behavior of Entangled Polystyrene-Polyhedral Oligosilsesquioxane (POSS) Copolymer

    DTIC Science & Technology

    2006-08-24

    and precipitated into 100 mL of methanol. After stirring 1 hour, the copolymer was isolated on fritted glassware and air-dried overnight. 1H NMR...Hesse, W. Z. Zeitschrift fuer Anorganische und Allgemeine Chemie 1926, 156, 245-257. 53 Fulcher, G. S. Journal of the American Ceramic Society

  2. Adsorption of Soluble Silica Species on Alumina Powders and Vice Versa

    DTIC Science & Technology

    2007-11-02

    material, and it shifted more with increasing amounts of dissolved species. Acknowledgement This research was supported by the Army Research Office...Biesheuvel, P. M.; Yu, B. C.; Meinhart , C. D.; Lange, F. F. Zeitschrift fuer Metallkunde 2003, 94, 377-380. (6) Alexander, G. B.; Heston, W. M.; Iler, R. K. J

  3. 22. HISTORIC VIEW OF EARLY TEST STAND IN GERMANY PERHAPS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    22. HISTORIC VIEW OF EARLY TEST STAND IN GERMANY PERHAPS THE ENGINE IS FOR THE VFR'S (VEREIN FUER RAUMSCHIFFAHRT) 4 STICK REPULSOR. ENGINE IN PHOTOS IS BEING TANKED WITH LOX (NOTICE THE FROST FORMING AT THE BOTTOM OF THE TANK BEHIND THE LADDER. - Marshall Space Flight Center, Redstone Rocket (Missile) Test Stand, Dodd Road, Huntsville, Madison County, AL

  4. Lernen und Lehren von Mathematik-Analysen zum Unterrichtshandeln II - Band 6, IDM-Reihe, Untersuchungen zum Mathematikunterricht. (Learning and Teaching of Mathematics - Analysis of Instructional Actions II - Volume 6, IDM Series, Inquiries into Mathematics Instruction.)

    ERIC Educational Resources Information Center

    Bauersfeld, Heinrich; And Others

    This set of five papers, written in German with abstracts in English, was collected by the Institut fuer Didaktit der Mathematik (Institute for the Teaching of Mathematics) at the University of Bielefeld in West Germany. In the first paper, Bauersfeld considers domains of subjective experiences as the best issue for an interactive theory of…

  5. Educational and Nonprofit Institutions Receiving Prime Contract Awards for RDT&E (Research, Development, Test and Evaluation), Fiscal Year 1981.

    DTIC Science & Technology

    1981-01-01

    SCIENCE & TECH 162 - UNITED KINGDOM MINISTRY OF DEFENCE 2,670 - UN KINGDOM 162 UN KINGDOM 2,670 INSTITUT FUER ATMOSPHAERISCHE 25 - UNIVERSITE RENE ... DESCARTES 10 - GERMANY 25 FRANCE 10 INVERESK RESEARCH INTERNATIONAL 106 - 8,602 UN KINGDOM 106 ISRAEL INSTITUTE OF TECHNOLOGY 55 - ISRAEL 55 KEELE UNIVERSITY

  6. Working Time and the Volume of Work in Germany: The IAB Concept of Measurement. IAB Labour Market Research Topics.

    ERIC Educational Resources Information Center

    Bach, Hans-Uwe; Koch, Susanne

    The Institut fuer Arbeitsmarkt- und Berufsforschung (IAB) or Institute for Employment Research has developed a detailed working time and volume of work measurement concept in order to more comprehensively assess the demand for labor. The individual components of working time in Germany are obtained from various data sources and combined to form…

  7. Controlling and Evaluation of Employment Promotion and the Employment Services in Germany. IAB Labour Market Research Topics No. 36.

    ERIC Educational Resources Information Center

    Brinkmann, Christian

    This paper addresses the emerging evaluation and controlling system of Germany's Bundesanstalt fuer Arbeit, which is responsible for employment promotion. Part 1 discusses changes in employment administration in European countries, a process that has occurred in the Federal Republic of Germany, although most of the basic structures have been…

  8. Modeling the Penetration Behavior of Rigid Into Ballistic Gelatin

    DTIC Science & Technology

    2008-03-01

    CORCELETTE QUEBEC GOA 1R0 CANADA 4 ERNST MACH INSTITUT V HOHL ER E SCHMOLINSKE E SCHNEIDER K THOMA ECKERSTRASSE 4 D-7800...FREIBURG I BR 791 4 GERMANY 3 FRAUNHOFER INSTITUT FUER KURZZEITDYNAMIK ERNST MACH INSTITUT H ROTHENHAEUSLER H SENF E STRASSBURGER

  9. Interface science of controlled metal/metal and metal/ceramic interfaces prepared using ultrahigh vacuum diffusion bonding

    SciTech Connect

    King, W.E.; Campbell, G.H.; Coombs, A.W.; Johnson, G.W.; Kelly, B.E.; Reitz, T.C.; Stoner, S.L.; Wien, W.L.; Wilson, D.M.

    1993-04-01

    We have designed, constructed, and are operating a capability for production of controlled homophase and heterophase interfaces: an ultrahigh vacuum diffusion bonding machine. This machine is based on a previous design which is operating at the Max Planck Institut fuer Metallforschung, Institut fuer Werkstoffwissenschaft, Stuttgart, FRG. In this method, flat-polished single or polycrystals of materials with controlled surfaced topography can be heat treated up to 1500C in ultrahigh vacuum. Surfaces of annealed samples can be sputter cleaned and characterized prior to bonding. Samples can then be precisely aligned crystallographically to obtain desired grain boundary misorientations. Material couples can then be bonded at temperatures up to 1500C and pressures up to 10 MPa. Results are presented from initial work on Mo grain boundaries and Cu/Al{sub 2}A{sub 3} interfaces.

  10. Exploratory simulations of multiphase effects in gas injection and ventilation tests in an underground rock laboratory

    SciTech Connect

    Finsterle, S. . Versuchsanstalt fuer Wasserbau, Hydrologie und Glaciologie); Schlueter, E.; Pruess, K. )

    1990-06-01

    This report is one of a series documenting the results of the Nagra-DOE Cooperative (NDC-I) research program in which the cooperating scientists explore the geological, geophysical, hydrological, geochemical, and structural effects was sponsored by the US Department of Energy (DOE) through the Lawrence Berkeley Laboratory (LBL) and the Swiss Nationale Genossenschaft fuer die Lagerung radioaktiver Abfaella (Nagra) and concluded in September 1989. 16 refs., 29 figs., 4 tabs.

  11. The NATO Two-Track Decision: The Impact of Public Opinion on Government Policy in the Federal Republic of Germany.

    DTIC Science & Technology

    1984-08-01

    Noelle - Neumann , "The Missile Gap," p. 46. * S 81 the SPD was very careful to emphasize the arms control portion of the decision as its first priority. This...1983), p. 1. 5 3Ibid., p. 3; and Noelle - Neumann , "The Missile Gap," p. 45. 5 4 Wolfgang Wagner, "Der Regierungswechsel in Bonn: Aussenpolitische...fuer Demoskopie Allensbach) was founded in 1947 by Elisabeth Noelle - Neumann and E.P. Neumann . The Institute concentrates on political, scientific

  12. Theoretical and Experimental Analysis of the Constant-Area, Supersonic- Supersonic Ejector

    DTIC Science & Technology

    1976-10-01

    supersoniques," Janrbuch der Wissenschaftlichen Gesell - schaft fuer Luftfahrt, 106-101 (1953). 109. Fondrk, V. V., "Multistage Ejectors for High...Investigation of Ejectors with- I. out Induced Flow," Arnold Engineering Development Center Report No. AFDC-TN-59-14S (1959). 169. Codegone, C...187. Bauer, R. C., and German, R. C., "Some Reynolds Number Effects on the Performance of Ejectors without Induced Flow," Arnold Engineer- ing

  13. Subcontracted R and D final report: analysis of samples obtained from GKT gasification test of Kentucky coal. Nonproprietary version

    SciTech Connect

    Raman, S.V.

    1983-09-01

    A laboratory test program was performed to obtain detailed compositional data on the Gesellshaft fuer Kohle-Technologie (GKT) gasifier feed and effluent streams. GKT performed pilot gasification tests with Kentucky No. 9 coal and collected various samples which were analyzed by GKT and the Radian Corporation, Austin, Texas. The coal chosen had good liquefaction characteristics and a high gasification reactivity. No organic priority pollutants or PAH compounds were detected in the wash water, and solid waste leachates were within RCRA metals limits.

  14. First light of the ESO Laser Guide Star Facility

    NASA Astrophysics Data System (ADS)

    Bonaccini Calia, D.; Allaert, E.; Alvarez, J. L.; Araujo Hauck, C.; Avila, G.; Bendek, E.; Buzzoni, B.; Comin, M.; Cullum, M.; Davies, R.; Dimmler, M.; Guidolin, I.; Hackenberg, W.; Hippler, S.; Kellner, S.; van Kesteren, A.; Koch, F.; Neumann, U.; Ott, T.; Popovic, D.; Pedichini, F.; Quattri, M.; Quentin, J.; Rabien, S.; Silber, A.; Tapia, M.

    2006-06-01

    Two teams of scientists and engineers at Max Planck Institut fuer Extraterrestrische Physik and at the European Southern Observatory have joined forces to design, build and install the Laser Guide Star Facility for the VLT. The Laser Guide Star Facility has now been completed and installed on the VLT Yepun telescope at Cerro Paranal. In this paper we report on the first light and first results from the Commissioning of the LGSF.

  15. Biologie statt Philosophie? Evolutionäre Kulturerklärungen und ihre Grenzen

    NASA Astrophysics Data System (ADS)

    Illies, Christian

    Vor über siebzig Jahren fand man in einer Höhle nahe Hohlenstein-Stadel, im heutigen Baden-Württemberg, eine Frau, die keiner bekannten Spezies und nicht einmal eindeutig den Hominiden zugeordnet werden konnte. Wegen ihres Aussehens wurde sie schon bald als "Löwenfrau“ bekannt (unterdessen wird sie als "Löwenmensch“ bezeichnet, da die in solchen Fragen Klarheit schaffenden Geschlechtsteile bei der Figur fehlen und in Zeiten von gender mainstreaming derartige Festlegungen gerne vermieden werden), denn sie hatte eine menschlich-aufrechte, unbehaarte Gestalt mit weiblichen Rundungen, aber zugleich eine Mähne, sowie Augen, Ohren und Schnauze eines Löwen. Eine sehr weitläufige Verwandte des Minotaurus, so schien es, und doch wesentlich älter als alle Bewohner des Olymps, denn vermutlich wurde die knapp 30 cm große Skulptur bereits in der Altsteinzeit vor etwa 32.000 Jahren aus Mammut-Elfenbein geschnitzt. Wir wissen nicht, ob sie kultischen Zwecken diente oder ein Kind mit ihr spielte, ob sie als Glücksbringer für die Jagd oder als Schamanin mit Löwenmaske verehrt und gefürchtet wurde. Aber die Löwenfrau legt nahe, dass der Mensch schon im Morgendämmern seiner Kultur über die eigene Nähe, aber auch Distanz zum Tier nachgedacht haben muss. Die Frage nach der menschlichen Selbstverortung begegnet uns in dieser Figur, und sie bestimmt viele Zeugnisse menschlichen Nachdenkens, welche uns die Altertumswissenschaften vorlegen. Mit dem Begriff "animal rationale“, wie er unter Bezug auf Aristoteles geprägt wurde, findet sie schließlich ihre klassische, für das Abendland lange Zeit maßgebliche Antwort: Der Mensch als Tier, dessen spezifisches Merkmal die Vernunftbegabtheit ist, die ihn zugleich von allen anderen Tieren abgrenzt und über sie stellt. Aber wo genau verläuft die Grenze? Und wie kann der Mensch beides zugleich sein? Die aristotelische Definition beantwortet diese Fragen nach der Doppelnatur nicht, sondern erhebt das offene R

  16. "PERLE bedside-examination-course for candidates in state examination" - Developing a training program for the third part of medical state examination (oral examination with practical skills).

    PubMed

    Karthaus, Anne; Schmidt, Anita

    2016-01-01

    Einführung: Viele Studierende haben Fragen und Beratungsbedarf bei der Vorbereitung für das letzte mündliche Examen. Um sie bei den Examensvorbereitungen zu begleiten und praktische Hilfestellung zu geben, wurde von Tutorinnen und Tutoren des SkillsLabs Perle- „Praxis ERfahren und LErnen“ der FAU Universität Erlangen-Nürnberg ein neues Kursmodell konzipiert.Ziele: Der Kurs soll den Studierenden helfen, sich mit der Prüfungssituation vertraut zu machen und Sicherheit zu erlangen. So ist die Auseinandersetzung mit dieser spezifischen Situation in einem geschützten Rahmen möglich. Außerdem findet eine Anwendung und eine Vertiefung von Softskills statt. Kurskonzept: Dieser Kurs ist angelehnt an das OSCE Modell (Objective Structured Clinical Examination), einem Fallbasierten Lern- und Prüfungsmodell. Anhand von Fallbeispielen wiederholen und vertiefen die Studierenden bereits gelerntes Wissen. Dabei werden sie von erfahrenen Tutoren begleitet, die Hilfestellung zu fachspezifischen und organisatorischen Fragen wie Kleiderordnung und Verhaltensweisen geben.Auswertung des Kurses: Der Kurs wurde von den Teilnehmern am Ende jedes Kurses evaluiert. Anhand der Evaluation wird der Kurs stetig weiterentwickelt. Im März, April und Oktober 2015 fanden sechs Kurse mit in Summe 84 Teilnehmern statt. 76 Fragebögen (91%) wurden vollständig ausgefüllt und ausgewertet.Diskussion: Als Stärken des Kurses sind ein guter Tutoren-Teilnehmer Schlüssel mit 1:4 (1 Tutor betreut 4 Teilnehmer), die Interaktivität des Kurses und die hohe Flexibilität auf die einzelne Gruppe eingehen zu können, zu nennen. Schwächen sind der limitierte Zeitrahmen und die bisher nicht erhobene Leistungsüberprüfung vor und nach dem Kurs. Schlussfolgerung: Dieser Artikel zeigt im Sinne eines „best practice“-Beispiels eine Möglichkeit auf, niederschwellig und mit geringen Kosten eine Vorbereitung für das praktische Examen anzubieten.

  17. [Quality of advanced practice nurse counseling in home care settings (APN-BQ): psychometric testing of the instrument].

    PubMed

    Petry, Heidi; Suter-Riederer, Susanne; Kerker-Specker, Carmen; Imhof, Lorenz

    2014-12-01

    Hintergrund: Patientenzentrierte und individuell ausgerichtete Angebote, wie die häusliche Beratung durch Pflegeexpertinnen-APN (Advanced Practice Nurses), eignen sich besonders, chronisch kranke alte Menschen in einer möglichst selbstständigen Lebensführung zu unterstützen. Methode: Um die Qualität einer patientenzentrierten Beratung zu evaluieren, wurde ein 23-Item Instrument entwickelt und seine psychometrischen Eigenschaften mit einer Stichprobe von 206 Personen, die 80 Jahre und älter waren getestet. Ziel: Ziel dieses Artikels ist es, die Entwicklung und Evaluation des APN-BQ zu beschreiben. Die psychometrische Testung des Instruments erfolgte anhand einer Hauptkomponentenanalyse mit Varimax-Rotation. Ergebnisse: Die Analyse ergab eine stabile vier Faktorenstruktur (FS = 0,91) mit 19 Items. Alle Faktoren hatten eine Faktorladung > 0,45. Die interne Konsistenz der Gesamtskala ergab einen Wert von Cronbachs alpha 0,86. Die hohe Rücklaufquote der Fragebogen und die Tatsache, dass 98,8 % der Fragen beantwortet wurden, bestätigten die Anwendungsfreundlichkeit und Akzeptanz des Instruments. Schlussfolgerungen: Das APN-BQ erwies sich als zuverlässiges und in Bezug auf Inhalt und Konstrukt valides Instrument, die Struktur-, Prozess- und Ergebnisqualität einer patientenzentrierten Beratungsintervention in der gemeindenahen Versorgung sowie das Ausmaß der Partizipation und Selbstbefähigung (Empowerment) der zu Beratenden zu messen.

  18. Reconstructive surgery for male stress urinary incontinence: Experiences using the ATOMS(®) system at a single center.

    PubMed

    Krause, Jens; Tietze, Stefan; Behrendt, Wolf; Nast, Jenifer; Hamza, Amir

    2014-01-01

    Fragestellung: Es erfolgt die Darstellung der Probleme und Komplikationsraten mit dem ATOMS(®)-Schlingensystem an Hand von eigenen Ergebnissen, um aktuelle Behandlungsmöglichkeiten von männlicher Stressinkontinenz zu analysieren. Material und Methode: In dem definiertem Zeitraum (4/2010 bis 4/2014) wurde bei 36 Patienten ein ATOMS(®)-System in unserer Klinik implantiert. Die Evaluation erfolgte prä- und postoperativ mithilfe des internationalen Fragebogens zur Inkontinenz (ICIQ SF). Es erfolgte die Erweiterung des Fragebogen mit Fragen über die postoperative perineale Schmerzsymptomatik, die generelle Zufriedenheit mit Operationsergebnis und über die Bereitschaft zur Therapieweiterempfehlung an den besten Freund.Ergebnisse: Unsere Daten zeigen eine relativ hohe Explantationsrate, jedoch eine hohe Patientenzufriedenheit. Die Explantation war in den meisten Fällen aufgrund einer Spätinfektion des Implantats oder aufgrund anderer symptomatische Faktoren notwendig. Im Vergleich zu anderen Studien zeigte sich unmittelbar postoperativ eine geringere Infektionsrate. Schlussfolgerung: Ein nicht invasives, unkompliziertes adjustierbares System zur Linderung der männlichen Stressinkontinenz bleibt eine Herausforderung. Obwohl unterschiedliche Systeme zur Behandlung der männlichen Stressinkontinenz verfügbar sind, scheint es, dass ein artifizieller Sphincter mehr Vorteile gegenüber dem ATOMS(®)-Systems besitzt. Dies könnte jedoch auch aufgrund zahlreicher, gut dokumentierter und langfristiger Daten über den artifiziellen Sphincter begründet werden.

  19. Der evolutionäre Naturalismus in der Ethik

    NASA Astrophysics Data System (ADS)

    Kaiser, Marie I.

    Charles Darwin hat eindrucksvoll gezeigt, dass der Mensch ebenso wie alle anderen Lebewesen ein Produkt der biologischen Evolution ist. Die sich an Darwin anschließende Forschung hat außerdem plausibel gemacht, dass sich nicht nur viele der körperlichen Merkmale des Menschen, sondern auch (zumindest einige) seiner Verhaltensdispositionen in adaptiven Selektionsprozessen herausgebildet haben. Die Vorstellung, dass auch die menschliche Moralität evolutionär bedingt ist, scheint daher auf den ersten Blick ganz überzeugend. Schließlich hat die Evolutionstheorie in den vergangenen Jahrzehnten in vielen Bereichen (auch außerhalb der Biologie) ihre weitreichende Bedeutung unter Beweis gestellt. Warum sollte, so könnte man beispielsweise fragen, gerade die Fähigkeit des Menschen, moralische Normen aufzustellen und gemäß ihnen zu handeln, nicht evolutionär erklärt werden können? Und warum sollte eine solche evolutionäre Erklärung der menschlichen Moralität irrelevant für die Rechtfertigung moralischer Normen sein? Warum sollte die Ethik eine Bastion der Philosophen bleiben, für die evolutionsbiologische Forschungsergebnisse über den Menschen und seine nächsten Verwandten keinerlei Relevanz besitzen?

  20. Use of elaborate feedback and an audience-response-system in dental education.

    PubMed

    Rahman, Alexander; Jacker-Guhr, Silke; Staufenbiel, Ingmar; Meyer, Karen; Zupanic, Michaela; Hahnemann, Merle; Lührs, Anne-Katrin; Eberhard, Jörg

    2013-01-01

    Einleitung: Die Studie soll die Frage klären, ob sich durch Anwendung von elaboriertem Feedback und einem Audience-Response-Systems (ARS) der Lernerfolg im Studienfach Zahnerhaltung signifikant verbessert. Methodik: Die Studierenden des 1. klinischen Semesters wurden in eine Studien- und eine Kontrollgruppe randomisiert eingeteilt. Die Randomisierung erfolgte unter Berücksichtigung der Faktoren Alter, Geschlecht und Note im Physikum. Im Verlauf von 10 Vorlesungen wurden pro Vorlesung 5 Multiple-Choice-Fragen zu den formulierten Lernzielen gestellt. Diese wurden unter Anwendung eines ARS von den Studierenden beantwortet. Nur die Studiengruppe erhielt sofort ein elaboriertes Feedback zu den Ergebnissen. Die am Ende durchgeführte Abschlussklausur und Evaluation sollten ermitteln, ob das elaborierte Feedback zu einem Lernerfolg führt und welchen Effekt das ARS auf die Vorlesungsatmosphäre hat. Ergebnisse: Die Ergebnisse der Abschlussklausuren ergaben keinen signifikanten Unterschied zwischen dem Lernerfolg der Studien- und der Kontrollgruppe. Schlussfolgerung: Durch das elaborierte Feedback zeigte sich in dieser Untersuchung kein Unterschied im Lernerfolg. Mit dem ARS ließ sich jedoch eine interaktivere, positivere Lernatmosphäre schaffen.

  1. Spectral radiance calibrations between 165-300 nm - An interlaboratory comparison

    NASA Technical Reports Server (NTRS)

    Bridges, J. M.; Ott, W. R.; Pitz, E.; Schulz, A.; Einfeld, D.; Stuck, D.

    1977-01-01

    The spectral radiance of deuterium lamps calibrated by the Max-Planck-Institut fuer Astronomie (MPI), by the U.S. National Bureau of Standards (NBS), and by the Physikalisch-Technische Bundesanstalt (PTB) are compared to check the agreement of UV radiometric scales. The NBS group used the optically thin continuum radiation from a wall-stabilized hydrogen arc as its fundamental radiometric standard, while the MPI and PTB groups used the synchrotron radiation facility in DESY. It is found that the spectral radiance scales based upon the DESY synchrotron and the NBS hydrogen arc are consistent, at least for one wavelength relative to another.

  2. STORAGE RING MEASUREMENT OF ELECTRON IMPACT IONIZATION FOR Mg{sup 7+} FORMING Mg{sup 8+}

    SciTech Connect

    Hahn, M.; Lestinsky, M.; Novotny, O.; Savin, D. W.; Bernhardt, D.; Mueller, A.; Schippers, S.; Wolf, A.

    2010-04-01

    We report electron impact ionization cross section measurements for Mg{sup 7+} forming Mg{sup 8+} at center of mass energies from approximately 200 eV to 2000 eV. The experimental work was performed using the heavy-ion storage ring TSR located at the Max-Planck-Institut fuer Kernphysik in Heidelberg, Germany. We find good agreement with distorted wave calculations using both the GIPPER code of the Los Alamos Atomic Physics Code suite and using the Flexible Atomic Code.

  3. Radioactive waste disposal in Germany: no site decision - Keeping competence

    SciTech Connect

    Kienzler, Bernhard; Geckeis, Horst; Gompper, Klaus; Klenze, Reinhardt

    2007-07-01

    The research programme of the Institut fuer Nukleare Entsorgung (INE) at the Forschungszentrum Karlsruhe is dedicated to elaborate the fundamental understanding of radionuclide/actinide interactions with various components of the groundwater and with the relevant host rock materials at disposal relevant trace concentrations. INE's research programme was not biased after enactment of the Gorleben moratorium in 2001. This paper presents current R and D with respect to application in performance assessment/safety case of nuclear waste disposal. Focus is given to the leading role of the institute in various projects within EU framework programmes. (authors)

  4. Development of Fracture Mechanics Maps for Composite Materials. Volume 3.

    DTIC Science & Technology

    1985-12-01

    RD-At69 W4 DEVELOPMENT OF FRCTURE ECHNICS NPS FOR COMPOSITE V3jMATERIALS VOLUME 3( ) DEUTSCHE FORSCHUNOS- UND YERSUCHSANSTALT FUER LUFT- UND RAUMF...ungekerbter CFK -Laminate J.- Block DFVLR 4 Institut~~ ~ firSrutrecai Braunschweig le- DEUTSCHE ~~~~~*~ FOSHUG-UN ERUHA:TL Y FOR LUFT- UND RAUMFAHRT E.V...Laminaten mittels Schallemissionsanalyse e Braunschweig, den 15.11.1984 Der Bericht umfal~t-:-:. 32 Seiten mit . %. * 14 Bildern und 1 Anhang Institutsleiter

  5. S-Layer Based Bio-Imprinting - Synthetic S-Layer Polymers

    DTIC Science & Technology

    2015-07-09

    AFRL-OSR-VA-TR-2015-0161 S-Layer Based Bio-Imprinting - Synthetic S-Layer Polymers Dietmar Pum ZENTRUM FUER NANOBIOTECHNOLOGIE Final Report 07/09...COVERED (From - To)      01-06-2012 to 31-05-2015 4.  TITLE AND SUBTITLE S-Layer Based Bio-Imprinting - Synthetic S-Layer Polymers 5a.  CONTRACT...the reassembled S-layer protein lattice. The start of the project focused on the selection, composition and chemical modification of suitable polymers

  6. Roentgensatellit (ROSAT)

    NASA Technical Reports Server (NTRS)

    Guckenbiehl, F.; Ousley, G. W., Sr.

    1991-01-01

    The DSN (Deep Space Network) mission support requirements for ROSAT (Roentgensatellit) are summarized. ROSAT is an international cooperative program between NASA and the Bundesministerium fuer Forschung and Technologie (BMFT). The satellite was launched on a Delta 2 vehicle and placed in a circular orbit at an altitude of 580 km, with a 53-deg inclination. The mission objectives are outlined and the DSN support requirements are defined through the presentation of tables and narratives describing the spacecraft flight profile; DSN support coverage; frequency assignments; support parameters for telemetry and command; and tracking support responsibility.

  7. Multi-Model Ensemble Wake Vortex Prediction

    NASA Technical Reports Server (NTRS)

    Koerner, Stephan; Holzaepfel, Frank; Ahmad, Nash'at N.

    2015-01-01

    Several multi-model ensemble methods are investigated for predicting wake vortex transport and decay. This study is a joint effort between National Aeronautics and Space Administration and Deutsches Zentrum fuer Luft- und Raumfahrt to develop a multi-model ensemble capability using their wake models. An overview of different multi-model ensemble methods and their feasibility for wake applications is presented. The methods include Reliability Ensemble Averaging, Bayesian Model Averaging, and Monte Carlo Simulations. The methodologies are evaluated using data from wake vortex field experiments.

  8. (HFR-B1 experiment reporting and capsule disassembly)

    SciTech Connect

    Myers, B.F.

    1991-02-22

    The traveler visited the Joint Research Centre (JRC), Petten, The Netherlands, the Forschungszentrum GmbH (KFA), Juelich, Germany; and the Zentralinstitut fuer Kernforschung (ZfK), Rossendorf, Germany, during the period January 28 through February 9. At JRC, the analysis of the experiment HFR-B1 was discussed; a new schedule for issuance of the final data report was established. Other discussions at JRC concerned the capabilities of Petten to conduct two reactor experiments being proposed under the US/FRG cooperative program and the initial results of a proof test of Germany fuel spheres. At KFA, the main emphasis was on the disassembly of capsules 2 and 3 of the HFR-B1 experiment and agreement on the examinations and tests to be conducted with the disassembled components. The disassembly of capsule 3 was observed. Extensive discussions were conducted on the work, both experimental and analytical, being conducted in the Institut fuer Sicherheitsforschung und Reaktor Technologie. A major portion of the experimental work is being conducted at ZfK and a visit to this laboratory, sponosored by the KFA, was made on February 6 and 7. Cooperation with the US on the experimental and analytical work in the safety area was strongly emphasized. 1 tab.

  9. SUNRISE: a balloon-borne telescope for high resolution solar observations in the visible and UV

    NASA Astrophysics Data System (ADS)

    Solanki, Sami K.; Gandorfer, Achim M.; Schuessler, Manfred; Curdt, W.; Lites, Bruce W.; Martinez-Pillet, Valentin; Schmidt, Wolfgang; Title, Alan M.

    2003-02-01

    Sunrise is a light-weight solar telescope with a 1 m aperture for spectro-polarimetric observations of the solar atmosphere. The telescope is planned to be operated during a series of long-duration balloon flights in order to obtain time series of spectra and images at the diffraction-limit and to study the UV spectral region down to ~200 nm, which is not accessible from the ground. The central aim of Sunrise is to understand the structure and dynamics of the magnetic field in the solar atmosphere. Through its interaction with the convective flow field, the magnetic field in the solar photosphere develops intense field concentrations on scales below 100 km, which are crucial for the dynamics and energetics of the whole solar atmosphere. In addition, Sunrise aims to provide information on the structure and dynamics of the solar chromosphere and on the physics of solar irradiance changes. Sunrise is a joint project of the Max-Planck-Institut fuer Aeronomie (MPAe), Katlenburg-Lindau, with the Kiepenheuer-Institut fuer Sonnenphysik (KIS), Freiburg, the High-Altitude Observatory (HAO), Boulder, the Lockheed-Martin Solar and Astrophysics Lab. (LMSAL), Palo Alto, and the Instituto de Astrofi sica de Canarias, La Laguna, Tenerife. In addition, there are close contacts with associated scientists from a variety of institutes.

  10. Measurement of Quantum Phase-Slips in Josephson Junction Chains

    NASA Astrophysics Data System (ADS)

    Guichard, Wiebke

    2011-03-01

    Quantum phase-slip dynamics in Josephson junction chains could provide the basis for the realization of a new type of topologically protected qubit or for the implementation of a new current standard. I will present measurements of the effect of quantum phase-slips on the ground state of a Josephson junction chain. We can tune in situ the strength of the phase-slips. These phase-slips are the result of fluctuations induced by the finite charging energy of each junction in the chain. Our measurements demonstrate that a Josephson junction chain under phase bias constraint behaves in a collective way. I will also show evidence of coherent phase-slip interference, the so called Aharonov-Casher effect. This phenomenon is the dual of the well known Aharonov-Bohm interference. In collaboration with I.M. Pop, Institut Neel, C.N.R.S. and Universite Joseph Fourier, BP 166, 38042 Grenoble, France; I. Protopopov, L. D. Landau Institute for Theoretical Physics, Kosygin str. 2, Moscow 119334, Russia and Institut fuer Nanotechnologie, Karlsruher Institut fuer Technologie, 76021 Karlsruhe, Germany; and F. Lecocq, Z. Peng, B. Pannetier, O. Buisson, Institut Neel, C.N.R.S. and Universite Joseph Fourier. European STREP MIDAS, ANR QUANTJO.

  11. Handbook of environmental chemistry. Volume 4. Part A, air pollution

    SciTech Connect

    Hutzinger, O.

    1986-01-01

    Five authors have each contributed one chapter to this first part (A) of the series on Air Pollution (Volume 4). Thus the book is neither a handbook compilation of reference data nor a text on the subject of air pollution. The first and shortest chapter (22 pages) by A. Wint of the University of Nottingham, England, is an overview called Air Pollution in Perspective. The second chapter, by P. Fabian of Max-Planck-Institute fuer Aeronomie, FRG, is titled Halogenated Hydrocarbons in the Atmosphere. This chapter, in 29 pages, summarizes current data on twenty of these compounds. Hans Guesten of the Institute fuer Radiochemie, Karlsruhe, FRG, contributed chapter 3 on Formation, Transport, and Control of Photochemical Smog (52 pages). This chapter is a good survey of current understanding of smog although each of the three topics promised in the title could by itself take up a good sized book. Atmospheric Distribution of Pollutants and Modeling of Air Pollution Dispersion by H. van Dop of the Royal Netherlands Meteorological Institute, the Netherlands, makes up Chapter 4 (42 pages). The article is written from a meteorological perspective. The last chapter, by J.M. Hales of Battelle Pacific Northwest Laboratories, USA, is titled The Mathematical Characterization of Precipitation Scavenging and Precipitation Chemistry (74 pages). Removal of pollutants from the atmosphere by precipitation is good news/bad news.

  12. Key issues of the common French-German safety approach for future PWRs

    SciTech Connect

    Frisch, W.; Rohde, J.; Gros, G.; Queniart, D.

    1996-07-01

    The development of the common French-German safety approach started in 1992 after a preparatory phase of about 2 years. It was accomplished on three working levels: the technical safety organizations GRS (Gesellschaft fuer Anlagen- und Reaktorsicherheit) and IPSN (institute de Protection et de Surete Nucleaire) developed the technical basis, advisory groups GPR (Groupe Permanent charge des Reacteurs Nucleaires) and RSK (Reaktorsicherheitskommission) developed common recommendations, and the authorities BMU (Bundesministerium fuer Naturschutz, Umwelt und Reaktorsicherheit) and DSIN (Direction de la Surete des Installations Nucleaires) issued the common safety approach. The general common safety approach issued in May 1993 contains safety objectives, general principles and already some technical principles. Important objectives are to reduce the annual probability of core melt, to exclude large early releases and to mitigate low pressure core melt sequences so that the associated maximum conceivable release would necessitate only very limited protective measures in area and in time. Based on this general safety approach, more detailed recommendations have been developed in 1994. A selection of the detailed recommendations is presented in the full paper. These recommendations are applicable to the EPR project for which the basic design is now underway.

  13. Bedside Teaching: general and discipline-specific teacher characteristics, criteria for patient selection and difficulties.

    PubMed

    Dybowski, Christoph; Harendza, Sigrid

    2013-01-01

    Zielsetzung: Zum Unterricht am Krankenbett (UaK), dem in der medizinischen Ausbildung eine wichtige Funktion für das Üben von Anamnese und klinischer Untersuchung zukommt, finden sich bisher nur wenige Untersuchungen, die Empfehlungen für die Gestaltung definieren. In Evaluationen wird jedoch vielfach über Schwierigkeiten mit dieser Unterrichtsform berichtet. Ziel der Studie ist es daher, wichtige Rahmenbedingungen für den UaK zu erheben und wesentliche Aspekte für die Patientenauswahl zu identifizieren.Methodik: Ein neu konzipierter Fragebogen mit geschlossenen und offenen Fragen zur Organisation des UaK, der Durchführung und Ausgestaltung sowie der Patientenauswahl wurde an insgesamt 134 Dozierende der Fächer Chirurgie, Innere Medizin und Psychiatrie verschickt. Die erhobenen Daten wurden quantitativ und qualitativ ausgewertet.Ergebnisse: Dozierende der Inneren Medizin waren signifikant älter als Dozierende der anderen beiden Fächer. In der Chirurgie wurde ein signifikant größerer Anteil der Termine von jüngeren Assistenzärzten unterrichtet. Die Einwilligung der Patienten und die Passung ihrer Erkrankungen zu den Lernzielen wurden fächerübergreifend als die wichtigsten Faktoren für die Patientenauswahl angegeben. Psychiater maßen gegenüber Chirurgen nach eigenen Angaben guten Deutschkenntnissen der Patienten signifikant mehr Bedeutung zu. In der Chirurgie wurde ein akut schlechter Gesundheitszustand tendenziell häufiger als Ausschlusskriterium der Patienten vom UaK genannt.Schlussfolgerung: Für die inhaltliche und organisatorische Planung und für die Patientenauswahl des UaK sollten die von den Dozenten benannten Aspekte und die fächerspezifischen Besonderheiten für die Planung des UaK berücksichtigt und bei Dozentenschulungen thematisiert werden.

  14. A study on effects of and stance over tuition fees.

    PubMed

    Karay, Yassin; Matthes, Jan

    2016-01-01

    Zielsetzung: Durch die in Deutschland zurzeit wieder abgeschafften Studiengebühren wurden Nachteile wie z.B. eine verlängerte Studiendauer befürchtet, während der Nachweis eines Nutzens bislang aussteht. Wir haben den Einfluss von Gebühren in Höhe von € 500 pro Semester auf den Studienverlauf Kölner Medizinstudierender sowie deren Einstellung gegenüber diesen Abgaben untersucht.Methodik: Für 1.324 Studierende, die im vorklinischen Studienabschnitt durchweg, zeitweise oder nie Studiengebühren zu zahlen hatten, wurde die Einhaltung der Mindeststudienzeit und die Studienabbrecherquote bis zum ersten Abschnitt der ärztlichen Prüfung analysiert. Mithilfe einer Regressionsanalyse wurden etwaige Effekte durch Studiengebühren und demografische Faktoren untersucht. Zusätzlich beantworteten 400 Studierende in einer online-Befragung Fragen zu ihrer Belastung durch und ihrer Einstellung zu Studiengebühren.Ergebnisse: Studiengebühren hatten keinen erkennbaren Einfluss auf Studiendauer oder Abbrecherquote. Laut Angaben in der online-Befragung wichen zuzeiten der Studiengebühren signifikant mehr Studierende vom vorgeschlagenen Stundenplan ab und sie verwendeten signifikant mehr Zeit darauf, nebenher Geld zu verdienen. 51% der Studierenden, die Gebühren gezahlt hatten und sogar 71% derer, die dies nie mussten, fanden Studiengebühren nicht oder eher nicht gerechtfertigt. Mehr als zwei Drittel der Studierenden konnten keine anhaltende Verbesserung durch Studiengebühren erkennen.Schlussfolgerung: Studiengebühren hatten an der Medizinischen Fakultät zu Köln keinen Einfluss auf Abbrecherquote und Studiendauer. Sie veränderten aber offenbar das Studierverhalten durch die vermehrte Notwendigkeit, neben dem Studium Geld zu verdienen. Die Kölner Medizinstudierenden sahen die Studiengebühren mehrheitlich kritisch und nahmen keinen nachhaltigen Nutzen im Sinne einer Verbesserung der Ausbildungsqualität wahr.

  15. Audience-response systems for evaluation of pediatric lectures--comparison with a classic end-of-term online-based evaluation.

    PubMed

    Bode, Sebastian Felix Nepomuk; Straub, Christine; Giesler, Marianne; Biller, Silke; Forster, Johannes; Krüger, Marcus

    2015-01-01

    Zielsetzung: Lehrveranstaltungsevaluationen werden oft zeitverzögert zur Lehrveranstaltung durchgeführt und ausgewertet. Mit dem elektronischen Evaluationsmedium Audience Response System (ARS) kann unmittelbar während oder nach Ende einer Lehrveranstaltung Feedback eingeholt, dargestellt und diskutiert werden. In dieser Arbeit wird eine studentische ARS-Vorlesungsevaluation analysiert. Es wird überprüft, ob signifikante Unterschiede zwischen den Ergebnissen der ARS-Vorlesungsevaluation und der Online-Evaluation am Ende des Semesters bestehen. Hierbei wird der Zusammenhang des studentischen Vorwissens, der Gestaltung der Lehrveranstaltung durch die Lehrenden sowie der Relevanz des Vorlesungsthemas für die Studierenden in Bezug auf die Gesamtbewertung betrachtet. Methodik: Im Wintersemester 2011/2012 wurde die Pädiatrievorlesung am Zentrum für Kinder- und Jugendmedizin (ZKJ) Freiburg mit Hilfe eines ARS evaluiert. Es wurden 34 Vorlesungen von durchschnittlich 22 (range 8-44) Studierenden mit jeweils vier Fragen evaluiert. Ergebnisse: Auf einer 6-stufigen Likert-Skala (1=sehr gut bis 6=ungenügend) bewerteten die Studierenden ihr Vorwissen im Mittel mit 3,18, die Vorlesungsgestaltung mit 2,44 und die Relevanz des Vorlesungsthemas mit 2,19. Die Gesamtbewertung der Vorlesung mittels ARS-Evaluation ergab die Note 2,31. In der Online Evaluation am Ende des Semesters wurde die Note 2,45 ermittelt. Es zeigt sich hoch signifikante Zusammenhänge zwischen den durch den Einsatz des ARS erhobenen Ergebnissen der Gesamtbewertung, dem Vorwissen der Studierenden, der Vorlesungsgestaltung sowie der selbsteingeschätzten Relevanz des Vorlesungsthemas. Schlussfolgerung: Der Einsatz von ARS ist zur unmittelbaren Vorlesungs- Evaluation, insbesondere im Hinblick auf zeitnahe (lehr-)personenbezogene Rückmeldungen geeignet. Im Vergleich zu einer Semesterende-Evaluation zeigt sich in der ARS-Evaluation eine bessere Bewertung.

  16. [Transition from childhood to adolescence-a qualitative study on experiences of adolescents with type 1 diabetes mellitus and their mothers].

    PubMed

    Gabele, Angela; Budde, Jörg; Spichiger, Elisabeth

    2015-04-01

    Hintergrund: In Deutschland erkranken jährlich etwa 2 200 Kinder unter 14 Jahren an Typ 1 Diabetes mellitus (T1DM). Bei Kleinkindern führen die Eltern das Diabetes-Management durch, später übernehmen Kinder einzelne Aufgaben. Während der Transition von der Kindheit zur Adoleszenz, im Alter von 8 – 13 Jahren, lernen Kinder selbstständiger zu werden. Kinder mit T1DM bewältigen eine weitere Transition im Diabetes-Management. Bislang fokussierte die Forschung jedoch auf die Transition Adoleszenz – Volljährigkeit. Fragestellung: Mit der Studie wurden das Erleben von Jugendlichen mit T1DM und ihrer Mütter während der Transition von der Kindheit zur Adoleszenz und die Bedeutung von Selbstständigkeit exploriert. Methode: Die interpretierende phänomenologische Studie fand in zwei süddeutschen Diabetes-Ambulanzen statt. Sechs Jugendliche und ihre Mütter nahmen an Interviews mit offenen Fragen teil. Daten wurden mittels Fall- und thematischer Analyse ausgewertet. Ergebnisse: Jugendliche erlebten die Übernahme der Diabetes-Aufgaben für immer längere Zeiträume und die damit verbundene größere Selbstständigkeit als befreiend. Mütter lernten ihren Kindern dies zuzutrauen. Ihre größte Sorge blieb eine mögliche Hypoglykämie. Familienmitglieder und Lehrer(innen) waren unterschiedlich in das Diabetes-Management involviert. Die kontinuierliche Betreuung durch dieselben Ärzte/Ärztinnen der Ambulanzen wurde als unterstützend erlebt. Schlussfolgerung: Eine kontinuierliche Betreuung durch dieselben Fachpersonen kann sich positiv auf die Transition Kindheit – Adoleszenz von Kindern mit T1DM auswirken.

  17. OnlineTED.com--a novel web-based audience response system for higher education. A pilot study to evaluate user acceptance.

    PubMed

    Kühbeck, Felizian; Engelhardt, Stefan; Sarikas, Antonio

    2014-01-01

    Hintergrund und Ziel: TED-Abstimmungssysteme werden zunehmend in der medizinischen Ausbildung an Hochschulen eingesetzt. Jedoch limitieren hohe Kosten und Komplexität herkömmlicher TED-Systeme häufig deren Anwendung. In diesem Projektartikel stellen wir ein neues webbasiertes TED-System vor, das keine Hardware-Klicker oder Installation zusätzlicher Software erfordert und mit allen Betriebssystemen kompatibel ist.Methoden und Ergebnisse: “OnlineTED” wurde an der Technischen Universität München (TUM) entwickelt und basiert auf Hypertext Preprocessor (PHP) mit My Structured Query Language (MySQL)-Datenbank als serverseitige und Javascript als nutzerseitige Programmiersprachen. “OnlineTED” ermöglicht es Dozenten, Fragensammlungen online zu erstellen, verwalten und in der Lehrveranstaltung mit einem Webbrowser anzuzeigen. Studierende können mit jedem internetfähigen Endgerät (Smartphone, Tablet-PC oder Laptop) an der Abstimmung teilnehmen. Eine Datenerhebung mit Hilfe eines Fragebogens, der Studierenden und Dozenten der TUM ausgehändigt wurde, enthielt Fragen zum Besitz von internetfähigen Endgeräten, der Akzeptanzmessung von "OnlineTED" sowie dem Vergleich von "OnlineTED" mit einem kommerziellen TED-System mit Klickern. Die Nutzerevaluationen von Studierenden und Dozenten ergab eine überdurchschnittlich positive Beurteilung von “OnlineTED” im Vergleich zum kommerziellen TED-System mit Klickern. Die Mehrheit (80%) der befragten Studierenden gab an, ein internetfähiges Endgerät zu besitzen.Zusammenfassung und Schlussfolgerungen: “OnlineTED” ist ein neues, webbasiertes und plattformunabhängiges TED-Abstimmungssystem für Hochschulen, das von Studenten und Dozenten überdurchschnittlich positiv evaluiert wurde. Als nicht-kommerzielle Alternative zu herkömmlichen TED-Systemen unterstützt es die interaktive Ausbildung von Studierenden, insbesondere bei großen Teilnehmerzahlen.

  18. Conflicts of interest in medical school: missing policies and high need for student information at most German universities.

    PubMed

    Lieb, Klaus; Koch, Cora

    2014-01-01

    Zielsetzung: Studierende der Medizin stehen mit Vertretern pharmazeutischer Unternehmen (PU) schon während des Studiums in Kontakt. Ziel dieser Untersuchung war herauszufinden: Existieren an medizinischen Fakultäten Regelungen zum Umgang von Medizinstudierenden mit Vertretern von PU und werden entsprechende Lehrveranstaltungen angeboten und besucht? und Wie denken Medizinstudierende über die Rolle von PU in der medizinischen Lehre? Methodik: Alle 36 deutschen Studiendekanate und 1.151 Medizinstudierende an acht deutschen Universitäten wurden um die Beantwortung eines Fragebogens mit 4 bzw. 7 Fragen zur oben genannten Thematik gebeten. Ergebnisse: 30 (83,3%) Studiendekane bzw. 1.038 (90,3%) Medizinstudierende füllten den Fragebogen aus. Nach Angaben der Studiendekanate existieren an jeweils nur einer (3,3%) medizinischen Fakultät eine Richtlinie zum Thema Interessenkonflikte bzw. eine Richtlinie, die den Umgang zwischen Medizinstudierenden und der Industrie reguliert. 8 (26,7%) der Studiendekanate äußerten Interesse an der Erarbeitung einer Richtlinie oder Vorlesung zu diesem Thema. 149 (14,4%) der Studierenden hatten bereits an einer Veranstaltung teilgenommen, die Beziehungen zwischen PU und Medizinstudierenden thematisiert und 779 (77,8%) wünschten sich mehr Unterricht dazu. 701 (73,4%) lehnten eine Verbesserung der Lehre durch finanzielle Unterstützung durch PU ab, wohingegen 216 (21,9%) der Meinung waren, dass Studierende sich nicht mit Vertretern von PU treffen sollten. Schlussfolgerungen: Im Gegensatz zu anderen Ländern wie den USA bestehen an deutschen medizinischen Fakultäten von wenigen Ausnahmen abgesehen keine Richtlinien zur Regelung des Umgangs von Medizinstudierenden mit pharmazeutischen Unternehmen. Da die Mehrheit der Studierenden sich mehr Informationen zu diesen Interaktionen wünscht, wäre die Etablierung entsprechender Vorlesungen bzw. Richtlinien sinnvoll.

  19. The scholar role in the National Competence Based Catalogues of Learning Objectives for Undergraduate Medical Education (NKLM) compared to other international frameworks.

    PubMed

    Hautz, Stefanie C; Hautz, Wolf E; Keller, Niklas; Feufel, Markus A; Spies, Claudia

    2015-01-01

    Hintergrund: In Deutschland haben die Gesellschaft für Medizinische Ausbildung (GMA) und der Medizinische Fakultätentag (MFT) den Nationalen Kompetenzbasierten Lernzielkatalog Medizin (NKLM) federführend entwickelt. Dieser beschreibt, wie viele internationale Pendants, detailliert Qualifikationen für Absolventen des Medizinstudiums. Die Definition derartiger Rahmenwerke folgt der Bestrebung, Ausbildungsinhalte den Lehrenden und Lernenden sowie der Gesellschaft transparent darzustellen. Der NKLM ergänzt die Listen von Themen aus Gegenstandskatalogen durch eine Sammlung erlernbarer Kompetenzen. Alle Rahmenwerke sind dabei entweder in Kapitel oder Domänen oder nach ärztlichen Rollen gegliedert. Dabei wirft die Definition der Gelehrten-Rolle zahlreiche Fragen auf, wie Studien gezeigt haben: Welcher Unterschied besteht zwischen den notwendigen Qualifikationen als wissenschaftlich qualifizierter Arzt und denen als ärztlicher Wissenschaftler? Wie werden die Schwerpunkte gesetzt und wie unterscheiden sie sich im internationalen Vergleich?Methode: In einer systematischen, dreistufigen Recherche wurden 13 internationale Rahmenwerke identifiziert und deren Inhalte durch eine qualitative Textanalyse mit den Inhalten der Gelehrten-Rolle des NKLM verglichen. Die drei Stufen umfassen (1) die systematische Suche, (2) die transparente Auswahl publizierter Rahmenwerke (in- und exclusion) und (3) die Datenextraktion, Kategorisierung und Validierung. Die Ergebnisse daraus wurden mit der Gelehrten-Rolle des NKLM verglichen.Ergebnisse: Die extrahierten Inhalte aller Rahmenwerke lassen sich in die Komponenten Gemeinsame Grundlagen, Klinische Anwendung, Forschung, Lehren und Bilden, sowie Lebenslanges Lernen gliedern. Im Unterschied zu den verglichenen Rahmenwerken betont der NKLM die zum Forschen und Lehren notwendigen Kompetenzen, während die klinische Anwendung eine vergleichsweise untergeordnete Rolle spielt. Schlussfolgerung: Die Inhalte der Gelehrtenrolle des NKLM

  20. The active participation of German-speaking countries in conferences of the Association for Medical Education in Europe (AMEE) between 2005 and 2013: a reflection of the development of medical education research?

    PubMed

    Raes, Patricia; Bauer, Daniel; Schöppe, Franziska; Fischer, Martin R

    2014-01-01

    Zielsetzung: International gewinnt medizinische Ausbildungsforschung an Bedeutung. Seit Anfang der 2000er ist auch in deutschsprachigen Ländern (D-A-CH) ein steigendes Interesse zu beobachten. In einer kontinuierlichen Steigerung der Publikationszahlen deutscher Autoren in internationalen Fachzeitschriften zum Thema „medizinische Ausbildung“ schlug sich das bisher jedoch nicht nieder. Die vorliegende Arbeit untersucht, ob sich jene Entwicklungen aus der aktiven Teilnahme deutschsprachiger Forscher an den Konferenzen der AMEE ablesen lassen.Methoden: Die Tagungsbände der AMEE-Kongresse von 2005-2013 der Kategorien „Postervorträge“, „Short Communications“, „Research Papers“ und „Plenarvorträge“ wurden auf Beteiligung aus D-A-CH hin untersucht. Im Anschluss wurden die Abstracts einer inhaltlichen Analyse unterzogen und nach Studiendesign, Methodik, Untersuchungsgegenstand und Forschungsthema kategorisiert. Ergebnisse: Von 9446 analysierten Abstracts weisen 549 Beiträge mindestens einen Erst-/Co- oder Letztautor aus D-A-CH auf. Die absolute Zahl der Beiträge pro Kongress schwankt zwischen 44 im Jahr 2010 und 77 im Jahr 2013. Der prozentuale Anteil schwankt zwischen 10,0% in 2005 und 4,1% im Jahr 2010. Seit 2010 stieg die Beteiligung jedoch kontinuierlich an. Die Arbeiten sind zumeist deskriptiver Art (62,7%). Studien zu grundlegenden Fragen des Lehrens und Lernens (clarification studies) sind eher selten (4,0%). Angewandt wurden meist quantitative Methoden (51,9%), um Fragestellungen zu Themen wie Lehr- und Lernmethoden (33,0%), Evaluation und Assessment (22,4%) oder Curriculumsentwicklung (14,4%) zu untersuchen. Untersuchungsgegenstand sind meist Studierende (52,5%).Schlussfolgerung: Die Beitragszahlen aus D-A-CH weisen zu Beginn und am Ende des Untersuchungszeitraums ein Maximum auf. Ein kontinuierlicher Anstieg der aktiven Beteiligung seit 2005 ist nicht zu beobachten. Dieser Umstand spiegelt nicht das steigende Interesse an der

  1. Innovative Conditioning Procedures for the Generation of Radioactive Waste Products which are Stable for Intermediate Storage or Repository-Independent in Final Storage

    SciTech Connect

    Steinmetz, H.J.; Heimbach, H.; Odoj, R.; Pruesse, R.; Wartenberg, W.

    2006-07-01

    The German Federal Government aims at a future final storage site for all kinds of radioactive waste within 30 years. Existing and newly-produced radioactive waste therefore has to be stored in interim storage facilities over very long periods of time. At present, most German radioactive waste or waste packages are produced and qualified according to the acceptance criteria of the projected final repository KONRAD. [1] Nevertheless, conditioning strategies for crude radioactive waste have to take into account the open question of the future repository site as well as requirements for long-term interim storage. The Quality Control Group for Radioactive Waste (in German: Produktkontrollstelle fuer radioaktive Abfaelle - PKS) works as an independent expert organisation for the quality checking of radioactive waste packages as well as evaluating conditioning procedures for waste containers suitable for final storage on behalf of the Federal Office for Radiation Protection (in German: Bundesamt fuer Strahlenschutz - BfS). The Institute for Safety Research and Reactor Technology (in German: Institut fuer Sicherheitsforschung and Reaktortechnik - ISR) of the Research Centre Juelich investigates scientific/technical problems of nuclear disposal, especially in the field of waste treatment. In this context, ISR and PKS investigated and/or evaluated innovative procedures, by means of which radioactive waste flows may be minimized and rendered inert. QSA Global (formerly: AEA Technology QSA) conditions radioactive waste of German users from the fields of medicine, research and industry as well as from its own radioactive source production and operates an intermediate storage facility for radioactive waste containers. This poster deals with the characteristics and possible applications of new waste fixation media on the basis of organic and inorganic mineral polymers; with the approach of producing inherently safe waste forms for various geological formations. Plasma technology

  2. The Nagra-DOE Cooperative Project

    SciTech Connect

    Long, J.C.S.; Levitch, R.A.; Zuidema, P.

    1993-04-01

    The Nagra-DOE Cooperative (NDC-I) research program was sponsored by the US Department of Energy (DOE) through the Lawrence Berkeley Laboratory (LBL), and the Swiss Nationale Genossenschaft fuer die Lagerung radioaktiver Abfaella (Nagra). Scientists participating in this project explored the geological, geophysical, hydrological, geochemical, and structural effects anticipated from the use of a rock mass as a geologic repository for nuclear waste. Six joint tasks were defined and are described briefly below. Tasks 1, 2, 3 and 5 were concerned with the characterization of fractured rock. Task 5 in particular was focused on investigations at the Grimsel Underground Laboratory in the Swiss Alps. Tasks 2 and 6 focused on the phenomenology associated with storing radioactive waste underground.

  3. Highlights from the 2013 International Sherwood Fusion Theory Conference, Santa Fe, NM

    SciTech Connect

    2013-04-15

    The 2013 International Sherwood Fusion Theory Conference was held in Santa Fe, NM from April 15-17. There were 15 invited talks spanning the field of fusion theory on topics such as stellerator theory, intrinsic rotation in tokamaks, transport in the plasma edge, and plasma-wall interactions. Author-provided summaries of several of the invited talks are included on pages 5 to 10 of this document. Plenary talks were given by Per Helander (Max-Planck-Institut fuer Plasmaphysik, Greifswald, Germany) on “Overview of recent developments in stellerator theory”, Amit Misra (Los Alamos National Laboratory) on “Stable storage of Helium at interfaces in nanocomposites”, Sergei Krasheninnikov (UC San Diego) on “On the physics of the first wall in fusion devices”, and Stuart Bale (UC Berkeley) on “Solar wind thermodynamics and turbulence: collisional – collisionless transitions”.

  4. Proceedings of the 8th high energy heavy ion study

    SciTech Connect

    Harris, J.W.; Wozniak, G.J.

    1988-01-01

    This was the eighth in a series of conferences jointly sponsored by the Nuclear Science Division of LBL and the Gesellschaft fuer Schwerionenforschung in West Germany. Sixty papers on current research at both relativistic and intermediate energies are included in this report. Topics covered consisted of: Equation of State of Nuclear Matter, Pion and High Energy Gamma Emission, Theory of Multifragmentation, Intermediate Energies, Fragmentation, Atomic Physics, Nuclear Structure, Electromagnetic Processes, and New Facilities planned for SIS-ESR. The latest design parameters of the Bevalac Upgrade Proposal were reviewed for the user community. Also, the design of a new electronic 4..pi.. detector, a time projection chamber which would be placed at the HISS facility, was presented.

  5. The NGS Pyramid wavefront sensor for ERIS

    NASA Astrophysics Data System (ADS)

    Riccardi, A.; Antichi, J.; Quirós-Pacheco, F.; Esposito, S.; Carbonaro, L.; Agapito, G.; Biliotti, V.; Briguglio, R.; Di Rico, G.; Dolci, M.; Ferruzzi, D.; Pinna, E.; Puglisi, A.; Xompero, M.; Marchetti, E.; Fedrigo, E.; Le Louarn, M.; Conzelmann, R.; Delabre, B.; Amico, P.; Hubin, N.

    2014-07-01

    ERIS is the new Single Conjugate Adaptive Optics (AO) instrument for VLT in construction at ESO with the collaboration of Max-Planck Institut fuer Extraterrestrische Physik, ETH-Institute for Astronomy and INAF - Osservatorio Astrofisico di Arcetri. The ERIS AO system relies on a 40×40 sub-aperture Pyramid Wavefront Sensor (PWFS) for two operating modes: a pure Natural Guide Star high-order sensing for high Strehl and contrast correction and a low-order visible sensing in support of the Laser Guide Star AO mode. In this paper we present in detail the preliminary design of the ERIS PWFS that is developed under the responsibility of INAF-Osservatorio Astrofisico di Arcetri in collaboration with ESO.

  6. The ERIS adaptive optics system

    NASA Astrophysics Data System (ADS)

    Riccardi, A.; Esposito, S.; Agapito, G.; Antichi, J.; Biliotti, V.; Blain, C.; Briguglio, R.; Busoni, L.; Carbonaro, L.; Di Rico, G.; Giordano, C.; Pinna, E.; Puglisi, A.; Spanò, P.; Xompero, M.; Baruffolo, A.; Kasper, M.; Egner, S.; Suàrez Valles, M.; Soenke, C.; Downing, M.; Reyes, J.

    2016-07-01

    ERIS is the new AO instrument for VLT-UT4 led by a Consortium of Max-Planck Institut fuer Extraterrestrische Physik, UK-ATC, ETH-Zurich, ESO and INAF. The ERIS AO system provides NGS mode to deliver high contrast correction and LGS mode to extend high Strehl performance to large sky coverage. The AO module includes NGS and LGS wavefront sensors and, with VLT-AOF Deformable Secondary Mirror and Laser Facility, will provide AO correction to the high resolution imager NIX (1-5um) and the IFU spectrograph SPIFFIER (1-2.5um). In this paper we present the preliminary design of the ERIS AO system and the estimated correction performance.

  7. An intelligent ground operator support system

    NASA Technical Reports Server (NTRS)

    Goerlach, Thomas; Ohlendorf, Gerhard; Plassmeier, Frank; Bruege, Uwe

    1994-01-01

    This paper presents first results of the project 'Technologien fuer die intelligente Kontrolle von Raumfahrzeugen' (TIKON). The TIKON objective was the demonstration of feasibility and profit of the application of artificial intelligence in the space business. For that purpose a prototype system has been developed and implemented for the operation support of the Roentgen Satellite (ROSAT), a scientific spacecraft designed to perform the first all-sky survey with a high-resolution X-ray telescope and to investigate the emission of specific celestial sources. The prototype integrates a scheduler and a diagnosis tool both based on artificial intelligence techniques. The user interface is menu driven and provides synoptic displays for the visualization of the system status. The prototype has been used and tested in parallel to an already existing operational system.

  8. Dedicated Max-Planck beamline for the in situ investigation of interfaces and thin films

    SciTech Connect

    Stierle, A.; Steinhaeuser, A.; Ruehm, A.; Renner, F.U.; Weigel, R.; Kasper, N.; Dosch, H.

    2004-12-01

    A dedicated beamline for the Max-Planck-Institut fuer Metallforschung was recently taken into operation at the Angstroemquelle Karlsruhe (ANKA). Here we describe the layout of the beamline optics and the experimental end-station, consisting of a heavy duty multiple circle diffractometer. For both a new design was realized, combining a maximum flexibility in the beam properties [white, pink (focused) monochromatic, energy range 6-20 keV] with a special diffractometer for heavy sample environments up to 500 kg, that can be run in different geometrical modes. In addition the angular-reciprocal space transformations for the diffractometer in use are derived, which allows an operation of the instrument in the convenient six circle mode. As an example, results from surface x-ray diffraction on a Cu{sub 3}Au(111) single crystal are presented.

  9. Thick Nano-Crystalline Diamond films for fusion applications

    SciTech Connect

    Dawedeit, Christoph

    2010-06-30

    This Diplomarbeit deals with the characterization of 9 differently grown diamond samples. Several techniques were used to determine the quality of these specimens for inertial confinement fusion targets. The quality of chemical vapor deposition diamond is usually considered in terms of the proportion of sp3-bonded carbon to sp2-bonded carbon in the sample. For fusion targets smoothness, Hydrogen content and density of the diamonds are further important characteristics. These characteristics are analyzed in this thesis. The research for thesis was done at Lawrence Livermore National Laboratory in collaboration with the Fraunhofer Institut für angewandte Festkörperphysik Freiburg, Germany. Additionally the Lehrstuhl fuer Nukleartechnik at Technical University of Germany supported the work.

  10. Rocket- and aircraft-borne trace gas measurements in the winter polar stratosphere

    NASA Technical Reports Server (NTRS)

    Arnold, F.; Moehler, O.; Pfeilsticker, K.; Ziereis, H.

    1988-01-01

    In January and February 1987 stratospheric rocket- and aircraft-borne trace gas measurements were done in the North Polar region using ACIMS (Active Chemical Ionization Mass Spectrometry) and PACIMS (PAssive Chemical Ionization Mass Spectrometry) instruments. The rocket was launched at ESRANGE (European Sounding Rocket Launching Range) (68 N, 21 E, Northern Sweden) and the twin-jet research aircraft operated by the DFVLR (Deutsche Forschungs- und Versuchs-anstalt fuer Luft- und Raumfahrt), and equipped with a mass spectrometer laboratory was stationed at Kiruna airport. Various stratospheric trace gases were measured including nitric acid, sulfuric acid, non-methane hydrocarbons (acetone, hydrogen cyanide, acetonitrile, methanol etc.), and ambient cluster ions. The experimental data is presented and possible implications for polar stratospheric ozone discussed.

  11. CRYOGENIC AND VACUUM TECHNOLOGICAL ASPECTS OF THE LOW-ENERGY ELECTROSTATIC CRYOGENIC STORAGE RING

    SciTech Connect

    Orlov, D. A.; Lange, M.; Froese, M.; Hahn, R. von; Grieser, M.; Mallinger, V.; Sieber, T.; Weber, T.; Wolf, A.; Rappaport, M.

    2008-03-16

    The cryogenic and vacuum concepts for the electrostatic Cryogenic ion Storage Ring (CSR), under construction at the Max-Planck-Institut fuer Kernphysik in Heidelberg, is presented. The ring will operate in a broad temperature range from 2 to 300 K and is required to be bakeable up to 600 K. Extremely high vacuum and low temperatures are necessary to achieve long lifetimes of the molecular ions stored in the ring so that the ions will have enough time to cool by radiation to their vibrational and rotational ground states. To test cryogenic and vacuum technological aspects of the CSR, a prototype is being built and will be connected to the commercial cryogenic refrigerator recently installed, including a specialized 2-K connection system. The first results and the status of current work with the prototype are also presented.

  12. Reconstruction of π0 and η mesons via conversion method in Au+Au at 1.23 GeV/u with HADES

    NASA Astrophysics Data System (ADS)

    Behnke, C.; HADES Collaboration

    2015-04-01

    Lepton pairs emerging from decays of virtual photons represent promising probes of matter under extreme conditions. In the energy domain of 1 - 2 GeV per nucleon, the HADES experiment at GSI Helmholtzzentrum fuer Schwerionenforschung in Darmstadt studies di-electrons and strangeness production in various reactions, i.e. collisions of pions, protons, deuterons, heavy-ions, and nuceous with nuclei. An accurate determination of the medium radiation depends on a precise knowledge of the underlying hadronic cocktail composed of various sources contributing to the net spectra. Therefore, a measurement of the neutral meson yields together with the dileptons is crucial. In this contribution, the capability of HADES to detect e+e- pairs from conversion of real photons will be demonstrated. We will present results from a two-photon analysis of Au+Au collisions at 1.23 GeV/u providing information on neutral π0 and η mesons.

  13. Key issues recently treated within the French-German safety approach

    SciTech Connect

    Frisch, W.; Gros, G.

    1997-12-01

    The development of the common French-German safety approach for future PWRs started in 1992. The general approach was issued in May 1993. It was accomplished on three working levels: the technical safety organizations GRS (Gesellschaft for Anlagen- und Reaktorsicherheit) and IPSN (Institut de Protection et de Surete Nucleaire) developed the technical basis, advisory groups GPR (Groupe Permanent charge des Reacteurs Nucleaires) and RSK (Reaktorsicherheitskom-mission) developed common recommendations, and the authorities BMU (Bundesministerium fuer Naturschutz, Umwelt und Reaktorsicherheit) and DSIN (Direction de la surete des Installations Nucleaires) issued the common safety approach. It contains safety objectives and general principles. The common approach has been presented at the ARS`94 Conference. Some important objectives and principles are briefly summarized in this paper, and the results of this work are described. 4 refs.

  14. Evidence-based (S3) Guideline on (anogenital) Lichen sclerosus.

    PubMed

    Kirtschig, G; Becker, K; Günthert, A; Jasaitiene, D; Cooper, S; Chi, C-C; Kreuter, A; Rall, K K; Aberer, W; Riechardt, S; Casabona, F; Powell, J; Brackenbury, F; Erdmann, R; Lazzeri, M; Barbagli, G; Wojnarowska, F

    2015-10-01

    Lichen sclerosus (LS) is an inflammatory skin disease that usually involves the anogenital area. All patients with symptoms or signs suspicious of lichen sclerosus should be seen at least once initially by a physician with a special interest in the disease in order to avoid delay in diagnosis, as early treatment may cure the disease in some and reduce or prevent scarring. The diagnosis is made clinically in most cases. Biopsies should only be performed under certain circumstances. The gold standard for treatment remains potent to very potent topical steroids; however, mild and moderate disease in boys and men may be cured by circumcision. Certain triggers should be avoided. http://www.euroderm.org/images/stories/guidelines/2014/S3-Guideline-on-Lichen-sclerosus.pdf http://www.awmf.org/fachgesellschaften/mitgliedsgesellschaften/visitenkarte/fg/deutsche-gesellschaft-fuer-gynaekologie-und-geburtshilfe-dggg.html.

  15. Artificial modification meeting reminder

    NASA Astrophysics Data System (ADS)

    Gordon, W. E.

    A symposium on artificial modification of the ionosphere by high-powered radio waves (V. V. Migulin, Honorary Chairman) will be held September 19-23, 1988, at the Scandic Hotel, Tromso, Norway. The symposium, sponsored by Union Radio Scientifique Internationale Commissions (URSI) G and H, is in the URSI series which started at Suzdal in 1983. Information on the scientific program is available from V.V. Migulin, U.S.S.R. Academy of Sciences, 103907, Moscow Center, Marx Avl8, U.S.S.R.; Peter Stubbe, Max- Planck-Institut fuer Aeronomy, D-3411 Katlenburg- Lindau 3, Federal Republic of Germany; or W.E. Gordon, Rice University, Space Physics and Astronomy Dept., Houston, TX 77251. For local arrangements information, contact Asgeir Brekke, Institute Matematisk Realfag, Aurora Observatory, Box 953, N-9001, Tromso, Norway.

  16. Observation of Spontaneous Neoclassical Tearing Modes

    SciTech Connect

    E.D. Fredrickson

    2001-10-03

    We present data in this paper from the Tokamak Fusion Test Reactor (TFTR) which challenges the commonly held belief that extrinsic MHD events such as sawteeth or ELMs [edge localized modes] are required to provide the seed islands that trigger Neoclassical Tearing Modes (NTMs). While sawteeth are reported to provide the trigger for most of the NTMs on DIII-D [at General Atomics in San Diego, California] and ASDEX-U [at Max-Planck-Institut fuer Plasmaphysik in Garching, Germany], the majority of NTMs seen in TFTR occur in plasmas without sawteeth, that is which are above the beta threshold for sawtooth stabilization. Examples of NTMs appearing in the absence of any detectable extrinsic MHD activity will be shown. Conversely, large n=1 modes in plasmas above the NTM beta threshold generally do not trigger NTMs. An alternative mechanism for generating seed islands will be discussed.

  17. Precision SAW filters for a large phased-array radar system

    NASA Astrophysics Data System (ADS)

    Haydl, W. H.; Sander, W.; Wirth, W.-D.

    1981-05-01

    The electronically steerable radar (ELRA) at the Forschungsinstitut fuer Funk und Mathematik is an experimental S-band phased-array radar system consisting of separate transmitting and receiving arrays employing several coherent and incoherent signal-processing and data-handling techniques, incorporating multiple beam and multifunction operation for target search and tracking, adaptive interference suppression, and target resolution. This paper deals with the development and application of two types of SAW filters for the IF amplifier channel of the receiving array. Compared to conventional filters with lumped elements, these filters have some important merits. By making use of a special tuning technique, the center frequencies of all filters were adjusted, resulting in an rms deviation of less than 1 kHz. One type of the SAW filters represents an almost ideal approach of realizing a matched filter for rectangular shaped pulses. The conformity of the frequency responses of several hundred filters improved the noise suppression capability of the system.

  18. Mechanism of 'GSI oscillations' in electron capture by highly charged hydrogen-like atomic ions

    SciTech Connect

    Krainov, V. P.

    2012-07-15

    We suggest a qualitative explanation of oscillations in electron capture decays of hydrogen-like {sup 140}Pr and {sup 142}Pm ions observed recently in an ion experimental storage ring (ESR) of Gesellschaft fuer Schwerionenforschung (GSI) mbH, Darmstadt, Germany. This explanation is based on the electron multiphoton Rabi oscillations between two Zeeman states of the hyperfine ground level with the total angular momentum F = 1/2. The Zeeman splitting is produced by a constant magnetic field in the ESR. Transitions between these states are produced by the second, sufficiently strong alternating magnetic field that approximates realistic fields in the GSI ESR. The Zeeman splitting amounts to only about 10{sup -5} eV. This allows explaining the observed quantum beats with the period 7 s.

  19. Progress in Heavy Ion Fusion

    SciTech Connect

    Herrmannsfeldt, W.B.

    1988-09-01

    The progress of the field of Heavy Ion Fusion has been documented in the proceedings of the series of International Symposia that, in recent years, have occurred every second year. The latest of these conferences was hosted by Gesellshaft fuer Schwerionenforshung (GSI) in Darmstadt, West Germany, June 28-30, 1988. For this report, a few highlights from the conference are selected, stressing experimental progress and prospects for future advances. A little extra time is devoted to report on the developments at the Lawrence Berkeley Laboratory (LBL) which is the center for most of the HIFAR program. The Director of the HIFAR program at LBL is Denis Keefe, who presented the HIF report at the last two of the meetings in this series, and in whose place the author is appearing now. 4 refs., 1 fig.

  20. Space Radar Image of Kilauea, Hawaii

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Data acquired on April 13, 1994 and on October 4, 1994 from the X-band Synthetic Aperture Radar on board the space shuttle Endeavour were used to generate interferometric fringes, which were overlaid on the X-SAR image of Kilauea. The volcano is centered in this image at 19.58 degrees north latitude and 155.55 degrees west longitude. The image covers about 9 kilometers by 13 kilometers (5.6 miles by 8 miles). The X-band fringes correspond clearly to the expected topographic image. The yellow line indicates the area below which was used for the three-dimensional image using altitude lines. The yellow rectangular frame fences the area for the final topographic image. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR. The Instituto Ricerca Elettromagnetismo Componenti Elettronici (IRECE) at the University of Naples was a partner in interferometry analysis.

  1. Space Radar Image of Kilauea Volcano, Hawaii

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This three-dimensional image of the volcano Kilauea was generated based on interferometric fringes derived from two X-band Synthetic Aperture Radar data takes on April 13, 1994 and October 4, 1994. The altitude lines are based on quantitative interpolation of the topographic fringes. The level difference between neighboring altitude lines is 20 meters (66 feet). The ground area covers 12 kilometers by 4 kilometers (7.5 miles by 2.5 miles). The altitude difference in the image is about 500 meters (1,640 feet). The volcano is located around 19.58 degrees north latitude and 155.55 degrees west longitude. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR. The Instituto Ricerca Elettromagnetismo Componenti Elettronici (IRECE) at the University of Naples was a partner in the interferometry analysis.

  2. Desire and reality--teaching and assessing communicative competencies in undergraduate medical education in German-speaking Europe--a survey.

    PubMed

    Härtl, Anja; Bachmann, Cadja; Blum, Katharina; Höfer, Stefan; Peters, Tim; Preusche, Ingrid; Raski, Bianca; Rüttermann, Stefan; Wagner-Menghin, Michaela; Wünsch, Alexander; Kiessling, Claudia

    2015-01-01

    Zielsetzung: An deutschsprachigen medizinischen Fakultäten (n=43, Deutschland, Österreich, Schweiz; (D-A-CH)) sind kommunikative Kompetenzen zunehmend fest in Lehre und Prüfungen verankert. Zur Unterstützung der weiteren curricularen Entwicklung bezüglich kommunikativer Kompetenzen arbeitet die Umfrage des GMA Ausschusses „Kommunikative und soziale Kompetenzen“ (KusK) systematisch auf, in welchem Umfang und in welcher Form unterrichtet und geprüft wird.Methodik: Der iterativ in Zusammenarbeit mit „KusK“ entwickelte Onlinefragebogen umfasst 70 Fragen zu Unterricht (n=14), Prüfungen (n=48), lokalen Bedingungen (n=5) und drei Felder für sonstige Anmerkungen. Pro Standort wurden zwei bis drei Personen, die mit dem Curriculum vor Ort vertraut sind, zur Teilnahme an der Umfrage eingeladen.Ergebnisse: Es beteiligten sich 39 medizinische Fakultäten (40 Studiengänge) an der Umfrage. In allen Studiengängen werden kommunikative Kompetenzen unterrichtet. Zehn Studiengänge haben ein longitudinales Curriculum für kommunikative Kompetenzen, in 25 Studiengängen existiert dies teilweise. 16 der 40 Studiengänge orientieren sich am Baseler Consensus Statement. In über 80 % der Studiengänge werden kommunikative Kompetenzen im zweiten und dritten Studienjahr unterrichtet. Fast alle arbeiten mit Simulationspatienten (n=38) und Feedback (n=37). Geprüft wird nur summativ (n=11), nur formativ (n=3) und sowohl summativ als auch formativ (n=16). Am häufigsten wird im vierten bzw. fünften Studienjahr geprüft (n=22 bzw. n=20). Neben schriftlichen Tests (n=15) und Referaten (n=9) sind vor allem praktische Prüfungen implementiert (OSCE (n=31); WPA (n=8)), meist mit selbst entwickelten Beurteilungsskalen (OSCE: n=19). Bezüglich der Schulungen der Prüfer sowie der Art und Weise der Ergebnisrückmeldung an Studierende besteht eine hohe Varianz.Schlussfolgerung: Der Unterricht von kommunikativen Kompetenzen wurde an allen beteiligten 39 medizinischen Fakult

  3. [Emergency department as final destination: perception and reception of the palliative patient" concept as well as approach toward improving interdisciplinary collaboration - a survey of emergency personnel of a Swiss emergency department].

    PubMed

    Klenk, Laurence; Iucolano, Nicoletta M; Braun, Christian Tasso; Exadaktylos, Aristomenis K; Eychmüller, Steffen

    2015-01-02

    Hintergrund: Wegen sich verändernder Strukturen im Spitalbereich sowie im Bereich der Hausarztabdeckung als auch infolge zunehmenden Drucks auf das Gesundheitssystem kommen mehr Patienten auf die Notfallstationen, die aufgrund ihrer Grunderkrankung und des fortgeschrittenen Krankheitsstadiums von einem palliativen Behandlungskonzept profitieren. Eine wesentliche Herausforderung ist hierbei bereits die Definition von «Palliative Care» (PC), sowie die Klärung, was genau die palliative Versorgung beinhaltet. Häufig vermischt wird der Terminus «Palliative Care» mit «End of life care». Die vorliegende Studie ist eine Standortbestimmung im Universitären Notfallzentrum des Inselspitals Bern (UNZ), das jährlich rund 32 400 Patienten versorgt. Ziel ist es, mehr über den Wissensstand und die persönliche Einstellung der Mitarbeiter zu palliativen Fragestellungen und speziell zum Begriff «Palliative Care» zu erhalten. Methodik: Die Mitarbeiter des Universitären Notfallzentrums des Inselspitals Bern (UNZ) wurden mittels einer Online-Umfrage durch eine spitalexterne Fachinstitution interviewt. Diese Befragung basiert auf einem Instrument [1], das in einer vergleichbaren Studie auf einer Notfallstation in den USA entwickelt und validiert wurde. Resultate: Von 154 Mitarbeitenden (Pflege und Ärzte) füllten 60 Mitarbeitende die Befragung vollständig aus, entsprechend einer Antwortrate von 39%. Die Definition von Palliative Care (von n=60) war sehr heterogen und konnte in sechs Themenbereiche eingeteilt werden. Bei den Fragen nach spezifischen Leistungsangeboten äusserten die Mitarbeitenden den Wunsch nach einem erleichterten Zugang zu bestehenden Patientendaten, nach einem 24-Stunden-Palliative-Care-Konsiliardienst und nach mehr Besprechungszeit für Fragestellungen der PC im klinischen Alltag. Schlussfolgerungen: Die heterogene Begriffsdefinition von «Palliative Care» bestätigt sich. Es besteht kein klares Vorgehen, und zudem lässt sich ein Zeitmangel f

  4. Introduction of the HAM-Nat examination--applicants and students admitted to the Medical Faculty in 2012-2014.

    PubMed

    Werwick, Katrin; Winkler-Stuck, Kirstin; Hampe, Wolfgang; Albrecht, Peggy; Robra, Bernt-Peter

    2015-01-01

    Hintergrund/Zielsetzung: Die Medizinische Fakultät Magdeburg hat zum Wintersemester 2012/13 einen Wissenstest zur Auswahl ihrer Studienbewerber eingeführt. Das Hamburger Auswahlverfahren für medizinische Studiengänge - Naturwissenschaftsteil (HAM-Nat) umfasst einen Multiple Choice-Test mit Fragen zu medizinisch relevanten Aspekten der Fächer Biologie, Physik, Chemie und Mathematik, der speziell für die Auswahl von Medizinbewerbern entwickelt wurde. Es wird untersucht, wie der HAM-Nat die Studierendenauswahl beeinflusst, aus welchen Gründen sich Studierende im Rahmen des Bewerbungsverfahrens für die Teilnahme am Test entscheiden und welche Erwartungen sie an das Studium haben.Methodik: Die Auswahlverfahren der Hochschule 2011 (ohne HAM-Nat) und 2012-2014 (mit HAM-Nat) werden verglichen. Aufbauend auf den Ergebnissen explorativer Interviews wurden erstmalig Studienanfänger des Wintersemesters 2013/2014 zur Wahl von Studienfach und Studienort sowie zu ihren Erwartungen an das Studium schriftlich befragt. Ergebnisse: Das um den HAM-Nat-Test erweiterte Auswahlverfahren wurde problemlos eingeführt. Der HAM-Nat hatte einen großen Einfluss auf die Auswahlentscheidung. Rund 65% der Zugelassenen hätten bei ausschließlicher Berücksichtigung der Abiturnote keinen Studienplatz erhalten. Männliche Bewerber zeigten im Durchschnitt bessere HAM-Nat-Ergebnisse als weibliche. Den Fragebogen beantworteten 147 von 191 Studienanfängern(77%). Für Studienbewerber aus Sachsen-Anhalt sind Hauptgründe für die Wahl der Landeshauptstadt die regionale Nähe, das vorhandene soziale Umfeld, die guten Studienbedingungen und der Wohlfühlcharakter am Studienort. Für die Mehrzahl der Bewerber, insbesondere für Bewerber aus anderen Bundesländern, standen dagegen die relativ guten Zulassungschancen in Magdeburg im Vordergrund. Schlussfolgerung: Die Medizinische Fakultät Magdeburg sieht im HAM-Nat ein geeignetes Instrument, um Bewerber mit hervorragenden naturwissenschaftlichen

  5. How do Supervising Clinicians of a University Hospital and Associated Teaching Hospitals Rate the Relevance of the Key Competencies within the CanMEDS Roles Framework in Respect to Teaching in Clinical Clerkships?

    PubMed

    Jilg, Stefanie; Möltner, Andreas; Berberat, Pascal; Fischer, Martin R; Breckwoldt, Jan

    2015-01-01

    Zielsetzung: Das Rollenmodell der „Canadian Medical Education Directives for Specialists“ (CanMEDS) findet auch im deutschen Sprachraum verbreitete Anwendung in der ärztlichen Weiterbildung. Unklar ist allerdings, inwieweit es auch auf die Ausbildung im Praktischen Jahr (PJ) in Deutschland anwendbar ist. Die vorliegende Studie untersucht daher, in welchem Ausmaß klinisch tätige Ärzte an einem Universitätsklinikum und dessen akademischen Lehrkrankenhäusern die sieben CanMEDS-Rollen bzw. deren Rollen-definierende Kompetenzen als relevant einschätzen und diese an PJ-Studierende zu vermitteln meinen.Methodik: 124 Ärztinnen und Ärzte aus den Fächern Innere Medizin und Chirurgie bewerteten in einem Fragebogen die Relevanz der 28 Rollen-definierenden Kompetenzen des CanMEDS-Modells („key competencies“) für folgende drei Leitfragen: „Relevanz für die persönliche tägliche Arbeit“, „Wichtigkeit für die PJ-Ausbildung“ und „Ausmaß der Umsetzung im konkreten Unterricht“.Ergebnisse: Alle Fragebögen waren hinsichtlich der Hauptfragestellung vollständig auswertbar. Für die Befragten waren alle sieben CanMEDS-Rollen in der persönlichen täglichen Arbeit wichtig und wurden als relevant für die PJ-Ausbildung eingeschätzt. Für alle Rollen wurde eine Umsetzung im konkreten Unterricht angegeben. Die Rollen „Kommunikator“ (Communicator), „Sachkundiger Mediziner“ (Medical Expert) und „Teamplayer“ (Collaborator) wurden hierbei in Bezug auf alle drei Fragen statistisch signifikant als am relevantesten eingestuft. Es zeigten sich keine Unterschiede zwischen den Fächern Innere Medizin und Chirurgie, sowie zwischen Universitätsklinik und akademischen Lehrkrankenhäusern.Schlussfolgerung: Die Befragten schätzten sämtliche Rollen-definierenden Kompetenzen des CanMEDS-Modells als relevant für ihre persönliche tägliche Arbeit ein. Ebenso bewerteten sie diese als relevant für die PJ-Ausbildung. Diese Befunde unterstützen die Eignung

  6. Use and acceptance of Wiki systems for students of veterinary medicine.

    PubMed

    Kolski, Darius; Arlt, Sebastian; Birk, Stephan; Heuwieser, Wolfgang

    2013-01-01

    Zielsetzung: Wiki-Systeme gewinnen im universitären Bereich überwiegend bei jungen Nutzern an Bedeutung. Anhand einer Umfrage sollte untersucht werden, wie Studierende der Tiermedizin Wiki-Systeme bisher nutzen, ob sie ein fachspezifisches, tiermedizinisches Wiki-System als sinnvoll erachten und wie hoch die Bereitschaft zur Mitgestaltung ist.Methodik: Die Datenerhebung erfolgte als empirische Untersuchung mit Hilfe eines Fragebogens, der Studierenden (n=210) des Fachbereiches Veterinärmedizin (Freie Universität Berlin) ausgehändigt wurde. Der Fragebogen enthielt Fragen zur Nutzung von Wikipedia allgemein und für den universitären Gebrauch und zur Nutzung und Akzeptanz von speziellen tiermedizinischen Wiki-Systemen. Ergebnisse: Die meisten Befragten hatten vorwiegend Leseerfahrungen mit Wikipedia und tiermedizinischen Wiki-Systemen, vor allem jüngere Semester. Im Gegensatz dazu war die aktive Nutzung hinsichtlich Schreiben oder Verändern von Informationen gering (8,6% Wikipedia, 15,3% tiermedizinische Wiki-Systeme). Sie war bei männlichen Nutzern (p=0,008) und in höheren Semestern (7,4% Anteil am 7. Semester) stärker vorhanden. Die bisherige Nutzung universitär genutzter tiermedizinischer Wiki-Systeme war ebenfalls gering. Die Mehrheit der Studierenden (96,2%) gab jedoch an, tiermedizinische Wiki-Systeme als Informationsmedium (d.h. passiv) in Zukunft nutzen zu wollen. Auch hier wurde eine niedrige Bereitschaft zur aktiven Erstellung von Inhalten angegeben. Allerdings erwarten viele Studierende beim Verfassen eigener Texte einen größeren Lernerfolg. Ein Vertrauen in die Informationsqualität eines Wiki-Systems ist bei den Studierenden grundsätzlich vorhanden. Schlussfolgerung: Die Einschätzung der Wiki-Systeme als nützliche Nachschlagewerke (94,8%) und die Befürwortung tiermedizinischer Wiki-Systeme (95,7%) lässt eine erfolgreiche Etablierung von veterinärmedizinischen Wiki-Systemen erwarten. Hierbei sollten insbesondere Methoden zur Erh

  7. New oral anticoagulants in the treatment of acute venous thromboembolism - a systematic review with indirect comparisons.

    PubMed

    Hirschl, Mirko; Kundi, Michael

    2014-09-01

    . Wichtige Fragen wie Monitoring und Antagonisierung sind noch offen, trotzdem hat sich das therapeutische Spektrum erweitert und sind die Möglichkeiten einer individualisierten Gerinnungstherapie durch Einführung der NOACs größer geworden.

  8. Clinical practice and self-awareness as determinants of empathy in undergraduate education: a qualitative short survey at three medical schools in Germany.

    PubMed

    Ahrweiler, Florian; Scheffer, Christian; Roling, Gudrun; Goldblatt, Hadass; Hahn, Eckhart G; Neumann, Melanie

    2014-01-01

    Ziel der Studie: Ärztliche Empathie ist ein Outcome-relevantes Ziel der medizinischen Ausbildung. Faktoren, die die ärztliche Empathie fördern oder hemmen, sind jedoch vor allem in Deutschland noch nicht ausreichend erforscht. In der vorliegenden Studie untersuchten wir die Sichtweise deutscher Medizinstudentinnen und -studenten auf die Faktoren, die ihre Empathie fördern und hemmen und darauf, in welcher Beziehung ihre Erfahrungen zu den jeweiligen Curricula standen. Methoden: Es wurde eine qualitative Kurzumfrage an drei Universitäten durchgeführt: an der Ruhr-Universität Bochum, an der Universität zu Köln und an der Universität Witten/Herdecke. Die Studierenden wurden gebeten, einen anonymen Fragebogen mit offenen Fragen über Ausbildungsinhalte und Situationen während ihres Medizinstudiums auszufüllen, die einen positiven oder negativen Einfluss auf ihre Empathie hatten. Die Daten wurden mit einer qualitativen Inhaltsanalyse nach Green und Thorogood ausgewertet.Ergebnisse: Insgesamt nahmen 115 Studierende an der Umfrage teil. Die Befragten gaben an, dass eine praxisorientierte Ausbildung mit Patientenkontakt sowie Lehre mit Bezug zur klinischen Praxis und der Sichtweise der Patienten ihre Empathie förderten, während das Fehlen dieser Faktoren ihre Empathie hemmte. Auch die persönliche Reaktion der Studierenden auf die Patienten, wie Sympathie für oder Abneigung gegen Patienten, Vorurteile und die innere Haltung wurden als Einflussfaktoren auf ihre Empathie betrachtet. Obwohl jede Universität einen anderen Ansatz bei der Vermittlung sozialer Kompetenzen verfolgt, ergaben sich aus den Antworten der jeweiligen Studierenden keine relevanten Unterschiede bezüglich möglicher Einflussfaktoren von Empathie. Schlussfolgerung: Mehr Lehre mit Praxisbezug und häufigerer Patientenkontakt könnten sich fördernd auf die Empathie der Studierenden auswirken. Sie benötigen Unterstützung bei der Entwicklung einer therapeutischen Beziehung zum Patienten

  9. Space Radar Image of Manaus, Brazil

    NASA Technical Reports Server (NTRS)

    1999-01-01

    changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  10. Space Radar Image of Kennedy Space Center, Florida

    NASA Technical Reports Server (NTRS)

    1999-01-01

    companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  11. SPace Radar Image of Fort Irwin, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  12. Space Radar Image of Kilauea, Hawaii - interferometry 1

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This X-band image of the volcano Kilauea was taken on October 4, 1994, by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar. The area shown is about 9 kilometers by 13 kilometers (5.5 miles by 8 miles) and is centered at about 19.58 degrees north latitude and 155.55 degrees west longitude. This image and a similar image taken during the first flight of the radar instrument on April 13, 1994 were combined to produce the topographic information by means of an interferometric process. This is a process by which radar data acquired on different passes of the space shuttle is overlaid to obtain elevation information. Three additional images are provided showing an overlay of radar data with interferometric fringes; a three-dimensional image based on altitude lines; and, finally, a topographic view of the region. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR. The Instituto Ricerca Elettromagnetismo

  13. space Radar Image of Long Valley, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  14. Space Radar Image of Long Valley, California in 3-D

    NASA Technical Reports Server (NTRS)

    1994-01-01

    induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  15. Space Radar Image of Raco Vegetation Map

    NASA Technical Reports Server (NTRS)

    1999-01-01

    companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  16. Space Radar Image of Central African Gorilla Habitat

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  17. North Central Thailand

    NASA Technical Reports Server (NTRS)

    1998-01-01

    NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  18. Space Radar Image of Raco Biomass Map

    NASA Technical Reports Server (NTRS)

    1999-01-01

    space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  19. Space Radar Image of Colima Volcano, Jalisco, Mexico

    NASA Technical Reports Server (NTRS)

    1994-01-01

    and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  20. Space Radar Image of Hong Kong, China

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This is an X-SAR image spanning an area of approximately 20 kilometers by 40 kilometers (12 miles by 25 miles) of the island of Hong Kong, the Kowloon Peninsula and the new territories in southern China, taken by the imaging radar on board the space shuttle Endeavour on October 4, 1994. North is toward the top left corner of the image. The Kaitak Airport runway on Kowloon Peninsula (center right of image) was built on reclaimed land and extends almost 3 kilometers (nearly 2 miles) into Victoria Harbor. To the south of the harbor lies the island of Hong Kong. The bright areas around the harbor are the major residential and business districts. Housing more than six million residents, Hong Kong is the most densely populated area in the world. The large number of objects visible in the harbor and surrounding waters are a variety of sea-going vessels, anchored in one of the busiest seaports in the Far East. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in

  1. Stem cell origin of cancer and differentiation therapy.

    PubMed

    Sell, Stewart

    2004-07-01

    Our forefathers in pathology, on observing cancer tissue under the microscope in the mid-19th century, noticed the similarity between embryonic tissue and cancer, and suggested that tumors arise from embryo-like cells [Recherches dur le Traitement du Cancer, etc. Paris. (1829); Editoral Archiv fuer pathologische Anatomie und Physiologie und fuer klinische Medizin 8 (1855) 23]. The concept that adult tissues contain embryonic remnants that generally lie dormant, but that could be activated to become cancer was later formalized by Cohnheim [Path. Anat. Physiol. Klin. Med. 40 (1867) 1-79; Virchows Arch. 65 (1875) 64] and Durante [Arch. Memori ed Osservazioni di Chirugia Practica 11 (1874) 217-226], as the "embryonal rest" theory of cancer. An updated version of the embryonal rest theory of cancer is that cancers arise from tissue stem cells in adults. Analysis of the cellular origin of carcinomas of different organs indicates that there is, in each instance, a determined stem cell required for normal tissue renewal that is the most likely cell of origin of carcinomas [Lab. Investig. 70 (1994) 6-22]. In the present review, the nature of normal stem cells (embryonal, germinal and somatic) is presented and their relationships to cancer are further expanded. Cell signaling pathways shared by embryonic cells and cancer cells suggest a possible link between embryonic cells and cancer cells. Wilm's tumors (nephroblastomas) and neuroblastomas are presented as possible tumors of embryonic rests in children. Teratocarcinoma is used as the classic example of the totipotent cancer stem cell which can be influenced by its environment to differentiate into a mature adult cell. The observation that "promotion" of an epidermal cancer may be accomplished months or even years after the initial exposure to carcinogen ("initiation"), implies that the original carcinogenic event occurs in a long-lived epithelial stem cell population. The cellular events during hepatocarcinogenesis

  2. Evaluation of the long-term efficacy and safety of an imidacloprid 10%/flumethrin 4.5% polymer matrix collar (Seresto®) in dogs and cats naturally infested with fleas and/or ticks in multicentre clinical field studies in Europe

    PubMed Central

    2012-01-01

    Background The objective of these two GCP multicentre European clinical field studies was to evaluate the long-term efficacy and safety of a new imidacloprid/flumethrin collar (Seresto®, Bayer AnimalHealth, Investigational Veterinary Product(IVP)) in dogs and cats naturally infested with fleas and/or ticks in comparison to a dimpylat collar ("Ungezieferband fuer Hunde/fuer Katzen", Beaphar, Control Product (CP)). Methods 232 (IVP) and 81 (CP) cats and 271(IVP) and 129 (CP) dogs were treated with either product according to label claims and formed the safety population. Flea and tick counts were conducted in monthly intervals for up to 8 months in the efficacy subpopulation consisting of 118 (IVP) + 47 (CP) cats and 197 (IVP) + 94 (CP) dogs. Efficacy was calculated as reduction of infestation rate within the same treatment group and statistically compared between the two treatment groups. Results Preventive efficacy against fleas in cats/dogs varied in the IVP group between 97.4%/94.1% and 100%/100% (overall mean: 98.3%/96.7%) throughout the 8 month period and in the CP group between 57.1%/28.2% and 96.1%/67.8% (overall mean: 79.3%/57.9%). Preventive efficacy against ticks in cats/dogs varied in the IVP group between 94.0%/91.2% and 100%/100% (overall mean: 98.4%/94.7%) throughout the 8 month period and in the CP group between 90.7%/79.9% and 100%/88.0% (overall mean: 96.9%/85.6%). The IVP group was statistically non-inferior to the CP group, and on various assessment days, statistical superiority was proven for flea and tick count reduction in dogs and cats. Both treatments proved to be safe in dogs and cats with mainly minor local observations at the application site. There was moreover, no incidence of any mechanical problem with the collar in dogs and cats during the entire study period. Conclusions The imidacloprid/flumethrin collar proved to reduce tick counts by at least 90% and flea counts by at least 95% for a period of at least 7-8 months in cats and dogs

  3. Space Radar Image of San Francisco, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V. (DLR), the major partner in science, operations and data processing of X-SAR.

  4. Compton Scattering and the Nucleon Polarizabilities in the A2 Collaboration at MAMI

    NASA Astrophysics Data System (ADS)

    Downie, Evangeline; MAMI A2 Collaboration

    2014-09-01

    There has been an upsurge in interest in Compton Scattering experiments as a means to understand the internal structure and dynamics of the nucleon. The new PDG value of β, the proton magnetic polarizability, changed noticeably, with no new data, simply new theoretical treatment of the existing data set. This indicates that the existing data is insufficient to constrain our extraction of these fundamental constants, which are important in areas of physics such as the proton radius determination, and neutron star physics. In the A2 Collaboration of the Institut fuer Kernphysik in Mainz, we use the MAMI accelerator with the Glasgow Mainz Photon Tagger to produce a quasi-monoenergetic, linearly polarized photon beam and apply it to a liquid hydrogen target. The reaction products detected in the Crystal Ball and TAPS large acceptance spectrometer array allow clean separation of the low-cross-section hadronic Compton scattering process. In so doing, we have produced the firs t measurement of the photon asymmetry in Compton scattering on the proton below the pion production threshold. Preliminary results show a demonstrable effect due to the polarizabilities. We will cover the experimental results and future prospects of the A2 polarizability program. There has been an upsurge in interest in Compton Scattering experiments as a means to understand the internal structure and dynamics of the nucleon. The new PDG value of β, the proton magnetic polarizability, changed noticeably, with no new data, simply new theoretical treatment of the existing data set. This indicates that the existing data is insufficient to constrain our extraction of these fundamental constants, which are important in areas of physics such as the proton radius determination, and neutron star physics. In the A2 Collaboration of the Institut fuer Kernphysik in Mainz, we use the MAMI accelerator with the Glasgow Mainz Photon Tagger to produce a quasi-monoenergetic, linearly polarized photon beam and

  5. [Ethics as a scientific basis for animal protection - on the advancement and amendment of the Codex Veterinarius].

    PubMed

    Kuhlmann, Ingrid; Luy, Joerg

    2005-01-01

    Seven years ago, the veterinary association for animal protection (Tieraerztliche Vereinigung fuer Tierschutz e.V., TVT) in Germany first published an orientation guide on the ethics of animal protection aimed at the entire veterinary profession: the "Codex Veterinarius - ethical guiding principles on veterinary action for the good and the protection of animals". The dilemmas of the veterinary profession have not changed since then, but as the principle that "nothing can be so good that it cannot be improved" also applies to the Codex, the two authors have attempted to optimise the few weak spots of the Codex. Joerg Luy sees the task of the Codex in surpassing the animal protection law in two respects: on the one hand regarding moral aspects that cannot be regulated (e.g. respect for the "intrinsic value" of the animal, which is greater than its "utilitarian value") and on the other hand in cases where the law does not live up to its own goals (e.g. regarding the inconsistent regulation on causing "longer term or repeated grave pain or suffering").

  6. In situ investigation of ion-induced dewetting of a thin iron-oxide film on silicon by high resolution scanning electron microscopy

    SciTech Connect

    Amirthapandian, S.; Schuchart, F.; Garmatter, D.; Bolse, W.

    2012-11-15

    Using our new in situ high resolution scanning electron microscope, which is integrated into the UNILAC ion beamline at the Helmholtzzentrum fuer Schwerionenforschung (GSI) in Darmstadt, Germany, we investigated the swift heavy ion induced dewetting of a thin iron oxide layer on Si. Besides heterogeneous hole nucleation at defects and spontaneous (homogeneous) hole nucleation, we could clearly identify a dewetting mechanism, which is similar to the spinodal dewetting observed for liquid films. Instead of being due to capillary waves, it is based on a stress induced surface instability. The latter results in the formation of a wavy surface with constant dominant wave-length and increasing amplitude during ion irradiation. Dewetting sets in as soon as the wave-troughs reach the film-substrate interface. Inspection of the hole radii and rim shapes indicates that removal of the material from the hole area occurs mainly by plastic deformation at the inner boundary and ion induced viscous flow in the peripheral zone due to surface tension.

  7. The microstructural stability and mechanical properties of two low activation martensitic steels

    SciTech Connect

    Victoria, M.; Marmy, P.; Batawi, E.; Peters, J.; Briguet, C.; Rezai-Aria, F.; Gavillet, D.

    1996-12-31

    A desirable feature of future magnetically confined fusion reactors is the prospect of producing low level radioactive waste. In order to minimize the volume of radioactive material, in particular from the first wall and blanket structures, reduced long term activation alloys are being developed. Here, a low activation composition of a martensitic 9% Cr steel has been studied, based on the DIN (Deutsches Inst. fuer Normung) 1.4914 composition (MANET) but replacing Ni, Mo and Nb by the low activation elements W, V and Ta. Two casts were produced from high purity components, in which the effects of controlled additions of Mn (0.58 and 0.055 wt. %) and N (7 and 290 wt. ppm) were studied, so that the final compositions resulted in one cast with high Mn and low N (steel A) and the other with the opposite conditions (steel B). The two steels were evaluated in terms of structural stability and mechanical properties under tensile, fatigue and fracture toughness tests. It has been found that both alloys have a DBTT below room temperature, which in the case of the steel A is 70 K below that of MANET. Although the tensile strength is somewhat below that of the parent steel, both steels have longer fatigue life.

  8. Frequency comparison involving the Romanian primary length standard RO.1 within the framework of the EUROMET Project #498

    NASA Astrophysics Data System (ADS)

    Popescu, Gheorghe

    2001-06-01

    An international frequency comparison was carried out at the Bundesamt fuer Eich- und Vermessungswessen (BEV), Vienna, within the framework of the EUROMET Project #498 from August 29 to September 5, 1999. The frequency differences obtained when the RO.1 laser from the National Institute for Laser, Plasma and Radiation Physics (NILPRP), Romania, was compared with five lasers from Austria (BEV1), Czech Republic (PLD1), France (BIPM3), Poland (GUM1) and Hungary (OMH1) are reported. Frequency differences were computed by using the matrix determinations for the group d, e, f, g. Considering the frequency differences measured for a group of three lasers compared to each other, we call the closing frequency the difference between measured and expected frequency difference (resulting from the previous two measurements). For the RO1 laser, when the BIPM3 laser was the reference laser, the closing frequencies range from +8.1 kHz to - 3.8 kHz. The relative Allan standard deviation was used to express the frequency stability and resulted 3.8 parts in 1012 for 100 s sampling time and 14000 s duration of the measurements. The averaged offset frequency relative to the BIPM4 stationary laser was 5.6 kHz and the standard deviation was 9.9 kHz.

  9. Application of Surface Micro-Discharge plasma to spacecraft component decontamination

    NASA Astrophysics Data System (ADS)

    Shimizu, Satoshi; Barczyk, Simon; Rettberg, Petra; Shimizu, Tetsuji; Klaempfl, Tobias; Zimmermann, Julia; Weber, Peter; Morfill, Gregor; Thomas, Hubertus

    2013-09-01

    In the field of extinct or extant extraterrestrial life research on other planets and moons, the prevention of biological contamination through spaceprobes is one of the most important requirements, and its detailed conditions are defined by the COSPAR planetary protection policy. Currently, a dry heat microbial reduction (DHMR) method is the only applicable way to satisfy the demand, which could, however, damage the sophisticated components like integrated circuits. In this study, cold atmospheric plasma based on the Surface Micro-Discharge technology was investigated for inactivation of different types of bacteria and endospores as an alternative method. After 90 min of plasma gas exposure, 3-6 log reductions were observed for the vegetative bacteria Escherichia coliand Deinococcus radiodurans and several types of bacterial endospores - including Bacillus atrophaeus, B. safensis, B. megaterium, B. megaterium 2c1 and B. thuringiensis E24. Furthermore, the applicability of the system for spacecraft decontamination was checked by studying the inactivation homogeneity, the temperature at the area of interest and the effects of the plasma gas exposure on different materials. The authors would like to acknowledge the financial support from Deutches Zentrum fuer Luft- und Raumfahrt (FKZ 50 JR1005).

  10. Numerical and experimental study of unsteady flow field and vibration in radial inflow turbines

    SciTech Connect

    Kreuz-Ihli, T.; Filsinger, D.; Schulz, A.; Wittig, S.

    2000-04-01

    The blades of turbocharger impellers are exposed to unsteady aerodynamic forces, which cause blade vibrations and may lead to failures. An indispensable requirement for a safe design of radial inflow turbines is a detailed knowledge of the exciting forces. Up to now, only a few investigations relating to unsteady aerodynamic forces in radial turbines have been presented. To give a detailed insight into the complex phenomena, a comprehensive research project was initiated at the Institut fuer Thermische Stroemungsmaschinen, at the University of Karlsruhe. A turbocharger test rig was installed in the high-pressure, high-temperature laboratory of the institute. The present paper gives a description of the test rig design and the measuring techniques. The flow field in a vaneless radial inflow turbine was analyzed using laser-Doppler anemometry. First results of unsteady flow field investigations in the turbine scroll and unsteady phase-resolved measurements of the flow field in the turbine rotor will be discussed. Moreover, results from finite element calculations analyzing frequencies and mode shapes are presented. As vibrations in turbines of turbochargers are assumed to be predominantly excited by unsteady aerodynamic forces, a method to predict the actual transient flow in a radial turbine utilizing the commercial Navier-Stokes solver TASCflow3d was developed. Results of the unsteady calculations are presented and comparisons with the measured unsteady flow field are made. As a major result, the excitation effect of the tongue region in a vaneless radial inflow turbine can be demonstrated.

  11. DKIST visible tunable filter control software: connecting the DKIST framework to OPC UA

    NASA Astrophysics Data System (ADS)

    Bell, Alexander; Halbgewachs, Clemens; Kentischer, Thomas J.; Schmidt, Wolfgang; von der Lühe, Oskar; Sigwarth, Michael; Fischer, Andreas

    2014-07-01

    The Visible Tunable Filter (VTF) is a narrowband tunable filter system for imaging spectroscopy and spectropolarimetry based on large-format Fabry Perot interferometers that is currently built by the Kiepenheuer Institut fuer Sonnenphysik for the Daniel K. Inouye Solar Telescope (DKIST). The control software must handle around 30 motorised drives, 3 etalons, a polarizing modulator, a helium neon laser for system calibration, temperature controllers and a multitude of sensors. The VTF is foreseen as one of the DKISTs first-light instruments and should become operational in 2019. In the design of the control software we strongly separate between the high-level part interfacing to the DKIST common services framework (CSF) and the low-level control system software which guarantees real-time performance and synchronization to precision time protocol (PTP) based observatory time. For the latter we chose a programmable logic controller (PLC) from Beckhoff Automation GmbH which supports a wide set of input and output devices as well as distributed clocks for synchronizing signals down to the sub-microsecond level. In this paper we present the design of the required control system software as well as our work on extending the DKIST CSF to use the OPC Unified Architecture (OPC UA) standard which provides a cross-platform communication standard for process control and automation as an interface between the high-level software and the real-time control system.

  12. SOFIA: Flying the Telescope

    NASA Technical Reports Server (NTRS)

    Asher, Troy; Cumming, Steve

    2012-01-01

    The Stratospheric Observatory For Infrared Astronomy (SOFIA) is an international cooperative development and operations program between the United States National Aeronautics and Space Administration (NASA) and the German Space Agency, DLR (Deutsches Zentrum fuer Luft-und Raumfahrt). SOFIA is a 2.5 meter, optical/infrared/sub-millimeter telescope mounted in a Boeing model 747SP-21 aircraft and will be used for many basic astronomical observations performed at stratospheric altitudes. It will accommodate installation of different focal plane instruments with in-flight accessibility provided by investigators selected from the international science community. The Facility operational lifetime is planned to be greater than 20 years. This presentation will present the results of developmental testing of SOFIA, including analysis, envelope expansion and the first operational mission. It will describe a brief history of open cavities in flight, how NASA designed and tested SOFIAs cavity, as well as flight test results. It will focus on how the test team achieved key milestones by systematically and efficiently reducing the number of test points to only those absolutely necessary to achieve mission requirements, thereby meeting all requirements and saving the potential loss of program funding. Finally, it will showcase examples of the observatory in action and the first operational mission of the observatory, illustrating the usefulness of the system to the international scientific community. Lessons learned on how to whittle a mountain of test points into a manageable sum will be presented at the conclusion.

  13. The ARCHES project

    NASA Astrophysics Data System (ADS)

    Motch, C.; Arches Consortium

    2014-07-01

    ARCHES (Astronomical Resource Cross-matching for High Energy Studies) is a FP7-Space funded project started in 2013 and involving the Observatoire Astronomique de Strasbourg including the CDS (France), the Leibniz-Institut fuer Astrophysik Potsdam (Germany), the University of Leicester (UK), the Universidad de Cantabria (IFCA, Spain) and the Instituto Nacional de Técnica Aeroespacial (Madrid, Spain). ARCHES aims at providing the international astronomical community with well-characterised multi-wavelength data in the form of spectral energy distributions (SEDs) for large sets of objects extracted from the 3XMM catalogue. The project develops new tools implementing fully probabilistic simultaneous cross-correlation of several catalogues. SEDs are based on an enhanced version of the 3XMM catalogue and on a careful selection of the most relevant multi-wavelength archival catalogues. In order to ensure the largest audience, SEDs will be distributed to the international community through CDS services and through the Virtual Observatory. These enhanced resources are currently tested in the framework of several science cases. An integrated cluster finder is developed at Potsdam, AGN science is studied at Leicester and IFCA while populations of Galactic X-ray sources are investigated at Strasbourg and Madrid.

  14. German Data Center for the Solar Dynamics Observatory: A model for the PLATO mission?

    NASA Astrophysics Data System (ADS)

    Burston, R.; Gizon, L.; Saidi, Y.; Solanki, S. K.

    2008-12-01

    The German Data Center for the Solar Dynamics Observatory (GDC-SDO), hosted by the Max Planck Institute for Solar System Research in Germany, will provide access to SDO data for the German solar physics community. The GDC-SDO will make available all the relevant Helioseismic and Magnetic Imager (HMI) data for helioseismology and smaller se- lected Atmospheric Imaging Assembly (AIA) data sets. This project commenced in August 2007 and is funded by the German Aerospace Center (Deutsches zentrum fuer Luft- und Raumfahrt or DLR) until December 2012. An important component of the GDC-SDO is the Data Record Management System (DRMS), developed in collaboration with the Stan- ford/Lockheed Joint Science Operations Center (JSOC). The PEGASUS workflow manage- ment system will be used to implement GDC-SDO data analysis pipelines. This makes use of the CONDOR High Throughput Computing Project for optimal job scheduling and also the GLOBUS Toolkit to enable grid technologies. Additional information about the GDC-SDO can be found at http://www.mps.mpg.de/projects/seismo/GDC1/index.html. Here, we sug- gest a similar structure and philosophy should be ideal for the PLATO mission, which looks for planetary transits and stellar oscillations and is being studied by ESA for an M-Mission slot in Cosmic Vision.

  15. Responses in the growth of the northern forest biomes to a CO{sub 2}-induced climatic change, as evaluated by the Frankfurt Biosphere Model (FBM)

    SciTech Connect

    Hager, C.; Wurth, G.; Wagner, U.; Kohlmaier, G.H.

    1996-12-31

    The Frankfurt Biosphere Model (FBM), a mechanistic, seasonal and prognostic compartment model of the terrestrial biosphere, has been developed in recent years to simulate the carbon exchange fluxes between the vegetation and the atmosphere with a spatial resolution of 0.5{degree} x 0.5{degree} on a global scale. In this contribution the authors use the FBM to assess the possible changes in the transient response of the northern forest biomes under a future 2 {times} CO{sub 2} climate. The development of these ecosystems from its initial seedling state to its climax state is simulated under different climatic conditions. In their simulations the 2 {times} CO{sub 2} climate provided by the GCM of the MPI fuer Meteorologie in Hamburg (ECHAM) is used. The differences in vegetation`s growth under contemporary and future climate can be assessed by performing two model runs with the same parameterization but with different driving climatic variables for each vegetation type and location.

  16. Experiments on Synthesis of the Heaviest Element at RIKEN

    SciTech Connect

    Morita, K.; Morimoto, K.; Kaji, D.; Haba, H.; Kanumgo, R.; Katori, K.; Kikunaga, H.; Ohnishi, T.; Suda, T.; Yoneda, A.; Yoshida, A.; Akiyama, T.; Goto, S.; Ideguchi, E.; Koura, H.; Kudo, H.; Ozawa, A.; Sueki, K.; Sato, N.; Tokanai, F.

    2007-02-26

    At the Institute of Physical and Chemical Research (RIKEN) a series of experiments studying the productions and their decays of the heaviest elements have been performed by using a gas-filled recoil ion separator GARIS. Results on the isotope of the 112th element, 277112, and on that of the 113th element, 278113, are reviewed. Tow decay chains which are assigned to be ones originating from the isotope 277112 were observed in the 208Pb(70Zn, n) reaction. Both chains consisted of four consecutive alpha decays followed by a spontaneous fission. The results provide a confirmation of the production and decay of the isotope 277112 reported by a research group at Gesellschaft fuer Schwerionenforschung (GSI), Germany, produced via the same reaction by using a velocity filter. Tow decay chains, both consisted of four consecutive alpha decays followed by a spontaneous fission, were observed also in the reaction 209Bi(70Zn, n). Those are assigned to be the convincing candidate events of the decays of the isotope of the 113th element, 278113, and its daughter nuclei, 274Rg, 270Mt, 266Bh, and 262Db.

  17. The University of Stuttgart IKE/University of Arizona student research program

    SciTech Connect

    Seale, R.L. )

    1988-01-01

    The University of Stuttgart's Institut fuer Kernenergetik und Energiesysteme (IKE) and the University of Arizona have had a joint program in which graduate students from the IKE spend 1 yr on the University of Arizona campus. This program started in 1982 largely as the result of an initiative begun by K.H. Hoecker, then director of IKE. Since 1985, Alfred Voss has been director and the program has continued without interruption. Under the program, the Deutscher Akademisher Austauschdienst, a government agency of the Federal Republic of Germany has funded scholarships for students from IKE, which provide support for 1 yr during which they attend the University of Arizona as visiting student scholars and engage in a research project under the direction of one of our faculty, which satisfies a part of the requirements for the Ingenieur-Diplom Fachrichtung Maschinenbau. The students get credit for their research from the University of Stuttgart. The topics have a broad range and include software development, artificial intelligence, radiation transport, and energy management studies.

  18. Konrad Repository Facing its Construction

    SciTech Connect

    Kunze, V.

    2008-07-01

    According to the German Atomic Energy Act the Federation is responsible for the construction and operation of installations for the safekeeping and disposal of radioactive waste. This duty was assigned to the Federal Office for Radiation Protection (Bundesamt fuer Strahlenschutz - BfS). In 1982, the Federal Institute of Physics and Metrology (Physikalisch Technische Bundesanstalt - PTB) as the precursor of BfS applied for a license for the disposal of radioactive waste with negligible heat generation in the Konrad iron ore mine near Salzgitter at the Ministry for Environment of Lower Saxony. After 25 years of plan approval procedure and subsequent lawsuits the license is now valid and Konrad is waiting for construction. Facing this challenge BfS has established a project team to supervise the in-house and external activities to be done. It is intended to construct the Konrad repository within a preparation period of two years and a subsequent erection phase of four years. Thus, Konrad is planned to come into operation in 2013. In this paper the development of the plan approval procedure, the technical design of the planned repository, especially with regard to safety-related aspects, and the planning for the construction will be discussed. (authors)

  19. An approach for the limitation of fissile material resulting from criticality safety analysis of a waste repository

    SciTech Connect

    Berg, H.P. ); Gmal, B. )

    1993-01-01

    The Bundesamt fuer Strahlenschutz (BfS), Germany's Federal Office of Radiation Protection, intends to dispose of non-heat-generating radioactive waste, which may contain residual quantities of fissile materials like U 235 or Pu 239 in solid form, in the planned German Konrad repository. Within the framework of a comprehensive safety analysis, criticality safety for both the operational phase and the post-operational phase of the repository has been investigated. The performed analysis and the investigated scenarios as well as the calculation methods are described. As a result of the criticality safety considerations, limitations of fissionable materials are derived. These limitations restrict on the one hand the admissible mass concentration of fissile materials in the waste form and--on the other hand--the admissible mass of these materials in the cross section of an emplacement room, leading at the end to admissible masses per waste package. The mass limitations are determined separately for four radionuclides. In practice, a mixture of these radionuclides in a waste package has to be taken into account. Therefore, a summation criterion has been derived in order to ensure a high flexibility for the conditioning of the waste. This flexibility option does not result in a lower safety level of the repository.

  20. The first educational interferometer in Mexico (FEYMANS): A novel project

    NASA Astrophysics Data System (ADS)

    Villicana Pedraza, Ilhuiyolitzin; Guesten, Rolf; Saucedo Morales, Julio Cesar; Carreto, Francisco; Valdes Estrada, Erik; Wendolyn Blanco Cardenas, Monica; Rodríguez Garza, Carolina B.; Pech Castillo, Gerardo A.; Ángel Vaquerizo, Juan

    2016-07-01

    An interferometer is composed of several radio telescopes (dishes) separated by a defined distance and used in synchrony. This kind of array produces a superior angular resolution, better than the resolution achieved by a single dish of the same combined area. In this work we propose the First Educational Youth Mexican Array North South, FEYMANS. It consists of an educational interferometer with initially four dishes. This array harvests Mexico's geography by locating each dish at the periphery of the country; creating new scientific links of provincial populations with the capital. The FEYMANS project focus in high school students and their projects on physics, chemistry and astronomy as a final project. Also, it can be used for bachelor theses. The initial and central dish-node is planed to be in Mexico City. After its construction, the efforts will focus to build subsequent nodes, on the Northwest region, Northeast, or Southeast. Region Northwest will give service to Baja California, Sonora and Chihuahua states. Region Northeast will cover Coahuila, Nuevo Leon and Tamaulipas. Finally, region Southeast will give access to Yucatan, Quintana Roo, Campeche, Tabasco and Chiapas. This project has been conceived by young professional astronomers and Mexican experts that will operate each node. Also, we have the technical support of the "Max Planck Institute fuer Radioastronomy in Bonn Germany" and the educational model of the "PARTNeR" project in Spain. This interferometer will be financed by Mexico's Federal Congress and by Mexico City's Legislative Assembly (ALDF).

  1. Simulation of DKIST solar adaptive optics system

    NASA Astrophysics Data System (ADS)

    Marino, Jose; Carlisle, Elizabeth; Schmidt, Dirk

    2016-07-01

    Solar adaptive optics (AO) simulations are a valuable tool to guide the design and optimization process of current and future solar AO and multi-conjugate AO (MCAO) systems. Solar AO and MCAO systems rely on extended object cross-correlating Shack-Hartmann wavefront sensors to measure the wavefront. Accurate solar AO simulations require computationally intensive operations, which have until recently presented a prohibitive computational cost. We present an update on the status of a solar AO and MCAO simulation tool being developed at the National Solar Observatory. The simulation tool is a multi-threaded application written in the C++ language that takes advantage of current large multi-core CPU computer systems and fast ethernet connections to provide accurate full simulation of solar AO and MCAO systems. It interfaces with KAOS, a state of the art solar AO control software developed by the Kiepenheuer-Institut fuer Sonnenphysik, that provides reliable AO control. We report on the latest results produced by the solar AO simulation tool.

  2. Proton microscopy at GSI and FAIR

    SciTech Connect

    Merrill, Frank E; Mariam, Fesseha G; Golubev, A A; Turtikov, V I; Varentsov, D

    2009-01-01

    Proton radiography was invented in the 1990's at Los Alamos National Laboratory (LANL) as a diagnostic to study dynamic material properties under extreme pressures, strain and strain rate. Since this time hundreds of dynamic proton radiography experiments have been performed at LANL and facilities have been commissioned at the Institute for Theoretical and Experimental Physics (ITEP) in Russia for similar applications in dynamic material studies. Recently an international collaboration was formed to develop a new proton radiography capability for the study of dynamic material properties at the Facility for Anti-proton and Ion Research (FAIR) located at Gesellschaft fuer Schwerionenforschung (GSI) in Darmstadt, Germany. This new Proton microscope for FAIR (PRIOR) will provide radiographic imaging of dynamic systems with unprecedented spatial, temporal and density resolution, resulting in a window for understanding dynamic material properties at new length scales. These dynamic experiments will be driven with many energy sources including heavy ions, high explosives and lasers. The design of the proton microscope and expected radiographic performance is presented.

  3. EARLY SCIENCE WITH SOFIA, THE STRATOSPHERIC OBSERVATORY FOR INFRARED ASTRONOMY

    SciTech Connect

    Young, E. T.; Becklin, E. E.; De Buizer, J. M.; Andersson, B.-G.; Casey, S. C.; Helton, L. A.; Marcum, P. M.; Roellig, T. L.; Temi, P.; Herter, T. L.; Guesten, R.; Dunham, E. W.; Backman, D.; Burgdorf, M.; Caroff, L. J.; Erickson, E. F.; Davidson, J. A.; Gehrz, R. D.; Harper, D. A.; Harvey, P. M.; and others

    2012-04-20

    The Stratospheric Observatory For Infrared Astronomy (SOFIA) is an airborne observatory consisting of a specially modified Boeing 747SP with a 2.7 m telescope, flying at altitudes as high as 13.7 km (45,000 ft). Designed to observe at wavelengths from 0.3 {mu}m to 1.6 mm, SOFIA operates above 99.8% of the water vapor that obscures much of the infrared and submillimeter. SOFIA has seven science instruments under development, including an occultation photometer, near-, mid-, and far-infrared cameras, infrared spectrometers, and heterodyne receivers. SOFIA, a joint project between NASA and the German Aerospace Center Deutsches Zentrum fuer Luft und-Raumfahrt, began initial science flights in 2010 December, and has conducted 30 science flights in the subsequent year. During this early science period three instruments have flown: the mid-infrared camera FORCAST, the heterodyne spectrometer GREAT, and the occultation photometer HIPO. This Letter provides an overview of the observatory and its early performance.

  4. 17th International Microgravity Measurements Group Meeting

    NASA Technical Reports Server (NTRS)

    DeLombard, Richard

    1998-01-01

    The Seventeenth International Microgravity Measurements Group (MGMG) meeting was held 24-26 March 1998 at the Ohio Aerospace Institute (OAI) in Brook Park, Ohio. This meeting focused on the transition of microgravity science research from the Shuttle, Mir, and free flyers to the International Space Station. The MGMG series of meetings are conducted by the Principal Investigator Microgravity Services project of the Microgravity Science Division at the NASA Lewis Research Center. The MGMG meetings provide a forum for the exchange of information and ideas about the microgravity environment and microgravity acceleration research in the Microgravity Research Program. The meeting had participation from investigators in all areas of microgravity research. The attendees included representatives from: NASA centers; National Space Development Agency of Japan; European Space Agency; Daimler Benz Aerospace AG; Deutsches Zentrum fuer Luft- und Raumfahrt; Centre National d'Etudes Spatiales; Canadian Space Agency, national research institutions; Universities in U.S., Italy, Germany, and Russia; and commercial companies in the U.S. and Russia. Several agencies presented summaries of the measurement, analysis, and characterization of the microgravity environment of the Shuttle, Mir, and sounding rockets over the past fifteen years. This extensive effort has laid a foundation for pursuing a similar course during future microgravity science experiment operations on the ISS. Future activities of microgravity environment characterization were discussed by several agencies who plan to operate on the ISS.

  5. Co-pyrolysis of coal/biomass and coal/sewage sludge mixtures

    SciTech Connect

    Storm, C.; Ruediger, H.; Spliethoff, H.; Hein, K.R.G.

    1999-01-01

    Biomass and sewage sludge are attracting increasing interest in power plant technology as a source of carbon-dioxide-neutral fuels. A new way to reduce the consumption of fossil fuels could be the co-combustion or co-gasification of coal and biomass or coal and sewage sludge. In both cases, pyrolysis is the first step in the technical process. In order to obtain detailed information about the pyrolysis of coal/biomass and coal/sewage sludge mixtures as well as unblended fuels, the Institut fuer Verfahrenstechnik and Dampfkesselwesen (IVD) at the University of Stuttgart has carried out investigations using an electrically heated entrained flow reactor. The test runs provided information about fuel conversion efficiency, pyrolysis gas and tar yield, and composition of pyrolysis gas and tar. Besides gas and tar analysis investigations regarding the path of trace elements, like heavy metals, alkali, chlorine and nitrogen components, during the pyrolysis process varying different parameters have been carried out. The fuel nitrogen distribution between pyrolysis gas, tar, and char has been analyzed, as well as the ash composition, and, thus, the release of mineral components during pyrolysis.

  6. Castor-1C spent fuel storage cask decay heat, heat transfer, and shielding analyses

    SciTech Connect

    Rector, D.R.; McCann, R.A.; Jenquin, U.P.; Heeb, C.M.; Creer, J.M.; Wheeler, C.L.

    1986-12-01

    This report documents the decay heat, heat transfer, and shielding analyses of the Gesellschaft fuer Nuklear Services (GNS) CASTOR-1C cask used in a spent fuel storage demonstration performed at Preussen Elektra's Wurgassen nuclear power plant. The demonstration was performed between March 1982 and January 1984, and resulted in cask and fuel temperature data and cask exterior surface gamma-ray and neutron radiation dose rate measurements. The purpose of the analyses reported here was to evaluate decay heat, heat transfer, and shielding computer codes. The analyses consisted of (1) performing pre-look predictions (predictions performed before the analysts were provided the test data), (2) comparing ORIGEN2 (decay heat), COBRA-SFS and HYDRA (heat transfer), and QAD and DOT (shielding) results to data, and (3) performing post-test analyses if appropriate. Even though two heat transfer codes were used to predict CASTOR-1C cask test data, no attempt was made to compare the two codes. The codes are being evaluated with other test data (single-assembly data and other cask data), and to compare the codes based on one set of data may be premature and lead to erroneous conclusions.

  7. Construction and manufacturing of a microgearhead with 1.9-mm outer diameter for universal application

    NASA Astrophysics Data System (ADS)

    Thuerigen, Christian; Beckord, Ulrich; Bessey, Reiner

    1999-03-01

    Many new applications in medicine, telecommunication, automation systems etc. require powerful microdrives. Speeds up to 100.000 rpm and output torques in the (mu) Nm-range are typical characteristics of electromagnetic micromotors with diameters of a few millimeters. To accomplish a powerful microdrive, these micromotors have to be combined with micro gearheads of the same outer diameter. For such a micro gearhead with toothed wheels manufactured by use of the LIGA process a multi-stage planetary gear has many advantages. Many stages with different gear ratios can be combined to achieve a great number of different transmission, but manufacturing tolerances and a clearance for assembly must be respected. Therefore besides the selection of a reliable gearhead type and a suitable manufacturing process the optimization of the tooth profile is the key to the implementation of powerful micro gear systems with high output torques and efficiencies. The involute profile is the most suitable toothing, but many calculations and simulations are required to find the right modulus, total depth of teeth, profile offset etc. In a joint project Dr. Fritz Faulhaber GmbH and Co. KG and the Institut fuer Mikrotechnik Mainz GmbH developed a powerful microdevice with an outer diameter of only 1.9 mm.

  8. Microscopy of semiconducting materials

    NASA Astrophysics Data System (ADS)

    Pennycook, S. J.

    1991-04-01

    The purpose of the trip was to present an invited talk at the 7th Oxford Conference on Microscopy of Semiconducting Materials entitled, High-Resolution Z-Contrast Imaging of Heterostructures and Superlattices, (Oxford, United Kingdom) and to visit VG Microscopes, East Grinstead, for discussions on the progress of the Oak Ridge National Laboratory (ORNL) 300-kV high-resolution scanning transmission electron microscope (STEM), which is currently on order. The traveler also visited three other institutions with 100-kV STEMs that either have or intend to purchase the necessary modifications to provide Z-contrast capability similar to that of the existing ORNL machine. Specifically, Max-Planck Institut fuer Metallforschung (Stuttgart, Germany); Cambridge University, Department of Materials Science and Metallurgy (Cambridge, United Kingdom); and Cavendish Laboratory, Cambridge University (Cambridge, United Kingdom) were visited. In addition, discussions were held with C. Humphreys on the possibility of obtaining joint funding for collaborative research involving electron beam writing and Z-contrast imaging in the Cambridge and Oak Ridge STEMs, respectively.

  9. Motor performance is better than normal in preschool children with cystic fibrosis.

    PubMed

    Gruber, Wolfgang; Orenstein, David M; Paul, Karl; Hüls, Gerd; Braumann, Klaus M

    2010-06-01

    The aim of the present study was to assess the motor performance in preschool children with a reliable and valid test battery developed to identify motor dysfunction and normal motor development in children aged from 4 to 6 years. Several aspects of motor performance were examined in 29 preschool children with cystic fibrosis (CF) age range 4-6 years (mean 5.2 +/- 0.8 years), FEV(1) 97.2 +/- 15.3pred and compared to with 22 healthy children of the same age 5.5 +/- 0.8 years. All children performed the "Motoriktest fuer 4-6jaehrige Kinder" (MOT) assessing seven different aspects of motor performance. Compared to healthy children, test score "Motor Quotient" (MQ) as the mean of all test items was significantly higher (P < 0.05) in children with CF (108.1 +/- 16 vs. 93.5 +/- 17.9). In both groups, the MQ can be classified as normal. Children with CF scored higher in MOT subtests "Agility and Coordination" (P < 0.05) and "Balance" (P < 0.01) than healthy children but not in the other subtests. We speculate that chest physiotherapy in preschool children with CF may have an effect on motor performance in general and in some aspects of motor performance.

  10. Photoproduction and Photodisintigration Processes of the Deuteron

    NASA Astrophysics Data System (ADS)

    Gohs, Jessica; Briscoe, William; Hornidge, Dave; Moores, Korwin; McDermit, Kevin; Bulmer, Kris; Patterson, Steven; Starotsin, Sasha; Rost, Mattias; Downie, Eve

    2004-10-01

    The Mainz Mictrotron (MAMI) is a continuous wave electron accelerator located at the Institut fuer Kernphysik in Mainz, Germany. It is the best tagged photon facility below 855 MeV and has extremely high energy resolution. TAPS, or Two Arm Photon Spectrometer, is a high resolution photon detection system that has been used at MAMI for the past fifteen years. In 2002 the (SLAC) Crystal Ball multiphoton spectrometer was moved from Brookhaven National Laboratory to Mainz due to the excellent facilities at MAMI. The combination of TAPS and the Crystal Ball form a truly 4p detection system for protons and neutrons. A photon beam with energies between 400 and 855 MeV has been used with a liquid deuterium target to investigate several photoproduction and photodisintigration processes. Among these are coherent p0 production on the deuteron itself, p0 production off the individual quasi-free nucleons, and the photodisintigration of the deuteron into a proton and a neutron. While each of these processes have physics interest, the latter can also be used to calibrate the detection efficiency of the Crystal Ball and TAPS for neutrons. We plan to report on the preliminary physics and calibration results from the first measurements made with the deuterium target.

  11. ‘A Wonderfull Monster Borne in Germany’: Hairy Girls in Medieval and Early Modern German Book, Court and Performance Culture*

    PubMed Central

    Katritzky, MA

    2014-01-01

    Wilden Mannes zieht die aktuelle geschichtswissenschaftliche Forschung in der Regel Verbindungslinien zwischen der frühneuzeitlichen Wahrnehmung von Hypertrichose-Fällen und Fragen der Ethnizität, ohne jedoch zu beachten, dass in der Frühen Neuzeit die Verbindung zwischen temporärem Hirsutismus und der krankhaften Verknüpfung von Unterernährung und Anorexie bekannt war. Im vorliegenden Beitrag werden vier Fälle von an Hirsutismus erkrankten Frauen neu analysiert, unter Einbezug dieser medizinischen Perspektive und unter Beachtung von Texten und Abbildungen, die meine jüngsten Forschungen in der Herzog August Bibliothek und an deutschen Archiven ans Licht gefördert haben. Die hier betrachteten Fälle betreffen ein italienisches Mädchen, das 1355 von Anna von Schweidnitz, Kaiserin des Hl. Römischen Reichs, nach Prag gebracht wurde; Madeleine und Antonietta Gonzalez, die Töchter des ‘Wilden Manns’ von Teneriffa, die in den 1580er Jahren an deutschen Höfen bezeugt sind; die bärtige Sankt Kümmernis (Wilgefortis), und die bayerische Jahrmarktkünstlerin Barbara Urslerin. PMID:25598545

  12. Space Radar Image of North Sea, Germany

    NASA Technical Reports Server (NTRS)

    1994-01-01

    swiftly than is currently possible. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  13. Space Radar Image of Los Angeles, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -C/X-SAR, scientists will be able to discern these areas even more clearly. Space Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: the L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  14. Space Radar Image of the Yucatan Impact Crater Site

    NASA Technical Reports Server (NTRS)

    1999-01-01

    to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR. Research on the biological effects of the Chicxulub impact is supported by the NASA Exobiology Program.

  15. Space Radar Image of the Silk route in Niya, Taklamak, China

    NASA Technical Reports Server (NTRS)

    1999-01-01

    -C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: the L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  16. Space Radar Image of Mammoth, California

    NASA Technical Reports Server (NTRS)

    1999-01-01

    . The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  17. Space Radar Image of Kiluchevskoi, Volcano, Russia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    flanks of the volcano. Paths of these flows can be seen as thin lines in various shades of blue and green on the north flank in the center of the image. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  18. Space Radar Image of Karisoke & Virunga Volcanoes

    NASA Technical Reports Server (NTRS)

    1994-01-01

    vegetation maps of the area to aid in their studies of the last 650 mountain gorillas in the world. The faint lines above the bamboo forest are the result of agricultural terracing by the people who live in the region. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V. (DLR), the major partner in science, operations and data processing of X-SAR.

  19. Space Radar Image of Raco, Michigan, ecological test site

    NASA Technical Reports Server (NTRS)

    1994-01-01

    global changes resulting from climatic warming. Baseline studies of vegetation are essential in monitoring these expected changes. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  20. Case study for the identification and evaluation of rainfall-runoff models

    NASA Astrophysics Data System (ADS)

    Kaleris, Vassilios; Langousis, Andreas

    2014-05-01

    conceptualizations used in the two rainfall-runoff models. Even for the same model, different parameter sets, which are behavioral, (i.e. they provide comparable but not identical time series of the total runoff), lead to different runoff components. The variability of the runoff components produced using behavioral parameter sets is investigated with the model ENNS. For this purpose, we developed: (a) a code to automatically run the ENNS model for a large number of randomly generated parameter sets, and (b) a multi-criteria procedure for the identification of behavioral parameter sets. Reference Nachtnebel H.P., W. Lettl and St. Baumung (1993): Abflussprognosemodell fuer das Einzugsgebiet der Enns und der Steyr (Handbuch), Institut fuer Wasserwirtschaft, Hydrologie und konstruktiven Wasserbau, Wien, Austria. Acknowledgements This work has been funded by the Helmholtz Center for Environmental Research-UFZ, in Leipzig, Germany, within the project "Estimation of water budgets under changing climatic conditions: examples from Western Greece" under the contract RA-3205/09.

  1. Space Radar Image of Rabaul Volcano, New Guinea

    NASA Technical Reports Server (NTRS)

    1994-01-01

    the image. Ashfall and subsequent rains caused the collapse of most buildings in the town of Rabaul. Mudflows and flooding continue to pose serious threats to the town and surrounding villages. Volcanologists and local authorities expect to use data such as this radar image to assist them in identifying the mechanisms of the eruption and future hazardous conditions that may be associated with the vigorously active volcano. Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  2. Safsaf Oasis, Egypt

    NASA Technical Reports Server (NTRS)

    1998-01-01

    is C-band, horizontally transmitted and received; and blue is X-band, vertically transmitted and received. The radar image was acquired by the Spaceborne Imaging Radar-C/ X-band Synthetic Aperture Radar (SIR-C/X-SAR) on April 16, 1994, on board the space shuttle Endeavour. SIR-C/X-SAR, a joint mission of the German, Italian and United States space agencies, is part of NASA's Earth Science Enterprise. The Landsat Program is managed jointly by NASA, the National Oceanic and Atmospheric Administration and the United States Geological Survey.

    Spaceborne Imaging Radar-C and X-Band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  3. Space Radar Image of Manaus, Brazil

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Estaciais, during the first and second flights of the SIR-C/X-SAR system have validated the interpretation of the radar images. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  4. Space Radar Image of Manaus region of Brazil

    NASA Technical Reports Server (NTRS)

    1994-01-01

    the first and second flights of the SIR-C/X-SAR system have validated the interpretation of the radar images. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  5. Space Radar Image of Altona, Manitoba, Canada

    NASA Technical Reports Server (NTRS)

    1994-01-01

    the magenta indicate differences in the degree of soil moisture change and differences in surface roughness. This seasonal composite demonstrates the sensitivity of radar to changes in agricultural surface conditions such as soil moisture, tillage, cropping and harvesting. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  6. Space Radar Image of Glascow, Missouri

    NASA Technical Reports Server (NTRS)

    1994-01-01

    community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  7. Space Radar Image of Missouri River, Glasgow, Missouri

    NASA Technical Reports Server (NTRS)

    1994-01-01

    ) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  8. Space Radar Image of Bebedauro, Brazil, seasonal

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V. (DLR), the major partner in science, operations and data processing of X-SAR.

  9. Space Radar Image of Kliuchevskoi Volcano, Russia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrte.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  10. Space Radar Image of Mammoth Mountain, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm), and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes that are caused by nature and those changes that are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science operations and data processing of X-SAR.

  11. Space Radar Image of Mississippi Delta

    NASA Technical Reports Server (NTRS)

    1999-01-01

    illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  12. Space Radar Image of Taal Volcano, Philippines

    NASA Technical Reports Server (NTRS)

    1994-01-01

    with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  13. Space Radar Image of Weddell Sea Ice

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -ice growth perhaps 5 to 10 centimeters (2 to 4 inches) thick. The more extensive dark zones are covered by a slightly thicker layer of smooth, level ice up to 70 centimeters (28 inches) thick. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  14. Space Radar Image of Kilauea Volcano, Hawaii

    NASA Technical Reports Server (NTRS)

    1994-01-01

    radar missions to help in better understanding the processes responsible for volcanic eruptions and earthquakes. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  15. Space Radar Image of Chernobyl

    NASA Technical Reports Server (NTRS)

    1994-01-01

    conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  16. Space Radar Image of Flevoland, Netherlands

    NASA Technical Reports Server (NTRS)

    1999-01-01

    used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrte.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  17. Space Radar Image of Moscow, Russia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  18. Space Radar Image of the Lost City of Ubar

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Imaging Radar-C and X-Band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  19. Space Radar Image of West Texas - SAR scan

    NASA Technical Reports Server (NTRS)

    1999-01-01

    forthcoming Canadian RADARSAT satellite. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR.

  20. Space Radar Image of Oberpfaffenhofen, Germany

    NASA Technical Reports Server (NTRS)

    1999-01-01

    -C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  1. Space Radar Image of Houston, Texas

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -C/X-band Synthetic Aperture Radar(SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI) with the Deutsche Forschungsanstalt fuer luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  2. Space Radar Image of Kliuchevskoi, Russia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    mature in Kamchatka's 120-day growing season. The forest industry is managing these forests and practicing selective cutting to allow younger trees time to grow and reseed. X-SAR images will aid in mapping these deforested areas and in encouraging further recultivation efforts. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  3. Space Radar Image of Colombian Volcano

    NASA Technical Reports Server (NTRS)

    1999-01-01

    weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companiesfor the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency,Agenzia SpazialeItaliana (ASI), with the Deutsche Forschungsanstalt fuer Luft undRaumfahrt e.v.(DLR), the major partner in science,operations, and data processing of X-SAR.

  4. The Construction of the Konrad Repository - Status and Perspective - 13034

    SciTech Connect

    Kunze, V.

    2013-07-01

    Due to the Atomic Energy Act of Germany the Federation is responsible for the construction and operation of installations for the safekeeping and disposal of radioactive waste. The Federal Office for Radiation Protection (Bundesamt fuer Strahlenschutz - BfS) is assigned with this duty. In 1982 the abandoned iron ore mine Konrad near Salzgitter (Federal State of Lower Saxony) was proposed as a repository for low and intermediate level radioactive waste with negligible heat generation. After 20 years of plan approval procedure the license was granted by the Ministry for Environment of Lower Saxony in May 2002. This decision was finally confirmed by the Federal Administrative Court in March 2007. The construction has started, but former assumptions about the beginning of waste emplacement tuned out to be too optimistic. In the course of the preparatory work and the implementation planning it turned out that many changes need to be done. As a matter of fact most of the documents and planning originate from the 1990's and need to be revised because from that time on until now no adaptation was appropriate. The necessity to apply the state-of-the-art technology and other legal implications give rise to further changes and new licensing procedures, especially building licenses. Furthermore, the license from 2002 also includes a lot of collateral clauses that need to be fulfilled before radioactive waste can be emplaced. With this in mind, the time frame for the construction of the Konrad repository was revised in 2010. As a result, the completion of the erection before 2019 does not seem to be realistic. (authors)

  5. LISA 8 Science Organizing Committee and Local Organizing Committee LISA 8 Science Organizing Committee and Local Organizing Committee

    NASA Astrophysics Data System (ADS)

    2011-05-01

    Science Organising Committee (SOC) Tom Abel, Stanford University Odylio Aguiar, Instituto Nacional de Pesquisas Espaciais Tal Alexander, Wizemann Institute Peter Bender, University of Colorado Pierre Binetruy, APC - College de France Sasha Buchman, Stanford University Robert Byer, Stanford University Manuela Campanelli, University of Texas Joan Centrella, NASA/Goddard Massimo Cerdonio, University of Padova Eugenio Coccia, University of Roma-2 Neil Cornish, Montana State University Michael Cruise, University of Birmingham Curt Cutler, NASA/JPL Karsten Danzmann, University of Hannover Sam Finn, Penn State University Jens Gundlach, NPL Gerhard Heinzel, Max-Planck-Institut fuer Gravitationsphysik Craig Hogan, University of Washington Jim Hough, University of Glasgow Scott Hughes, MIT Oliver Jennrich, ESTEC Philippe Jetzer, University Zurich Seiji Kawamura, National Observatory, Japan Alberto Lobo, ICE-CSIC and IEEC Avi Loeb, Harvard University Piero Madau, Lick Observatory Yannick Mellier, IAP, Paris Peter Michelson, Stanford University Guido Mueller, University of Florida Sterl Phinney, Caltech Tom Prince, NASA/JPL Doug Richstone, University of Michigan Bernard Schutz, AEI Potsdam Tuck Stebbins, NASA/Goddard Tim Sumner, Imperial College, London Ke-Xun Sun, Stanford University Kip Thorne, Caltech Michele Vallisneri, NASA/JPL Alberto Vecchio, University of Birmingham Jean-Yves Vinet, OCA, Nice Stefano Vitale, University of Trento Rai Weiss, MIT Nick White, NASA/Goddard Local Organising Committee (LOC) Sasha Buchman (Stanford University) Robert Byer (Stanford University) Sara Charbonneau-Lefort (Stanford University) Nancy Christianson (Stanford University) John Conklin (Stanford University) Dan DeBra (Stanford University) Jan Goebel (Stanford University) Vivian Drew (Stanford University) Ke-Xun Sun (Stanford University) Lucy Zhou (Stanford University) Andrea Zoellner (Stanford University)

  6. DIY EOS: Experimentally Validated Equations of State for Planetary Fluids to GPa Pressures, Tools for Understanding Planetary Processes and Habitability

    NASA Astrophysics Data System (ADS)

    Vance, Steven; Brown, J. Michael; Bollengier, Olivier

    2016-10-01

    Sound speeds are fundamental to seismology, and provide a path allowing the accurate determination of thermodynamic potentials. Prior equations of state (EOS) for pure ammonia (Harr and Gallagher 1978, Tillner-Roth et al. 1993) are based primarily on measured densities and heat capacities. Sound speeds, not included in the fitting, are poorly predicted.We couple recent high pressure sound speed data with prior densities and heat capacities to generate a new equation of state. Our representation fits both the earlier lower pressure work as well as measured sound speeds to 4 GPa and 700 K and the Hugoniot to 70 GPa and 6000 K.In contrast to the damped polynomial representation previously used, our equation of state is based on local basis functions in the form of tensor b-splines. Regularization allows the thermodynamic surface to be continued into regimes poorly sampled by experiments. We discuss application of this framework for aqueous equations of state validated by experimental measurements. Preliminary equations of state have been prepared applying the local basis function methodology to aqueous NH3, Mg2SO4, NaCl, and Na2SO4. We describe its use for developing new equations of state, and provide some applications of the new thermodynamic data to the interior structures of gas giant planets and ocean worlds.References:L. Haar and J. S. Gallagher. Thermodynamic properties of ammonia. American Chemical Society and the American Institute of Physics for the National Bureau of Standards, 1978.R. Tillner-Roth, F. Harms-Watzenberg, and H. Baehr. Eine neue fundamentalgleichung fuer ammoniak. DKV TAGUNGSBERICHT, 20:67-67, 1993.

  7. Protection of Operators and Environment - the Safety Concept of the Karlsruhe Vitrification Plant VEK

    SciTech Connect

    Fleisch, J.; Kuttruf, H.; Lumpp, W.; Pfeifer, W.; Roth, G.; Weisenburger, S.

    2002-02-26

    The Karlsruhe Vitrification Plant (VEK) plant is a milestone in decommissioning and complete dismantling of the former Karlsruhe Reprocessing Plant WAK, which is in an advanced stage of disassembly. The VEK is scheduled to vitrify approx. 70 m3 of the highly radioactive liquid waste (HLW) resulting from reprocessing. Site preparation, civil work and component manufacturing began in 1999. The building will be finalized by mid of 2002, hot vitrification operation is currently scheduled for 2004/2005. Provisions against damages arising from construction and operation of the VEK had to be made in accordance with the state of the art as laid down in the German Atomic Law and the Radiation Protection Regulations. For this purpose, the appropriate analysis of accidents and their external and internal impacts were investigated. During the detailed design phase, a failure effects analysis was carried out, in which single events were studied with respect to the objectives of protection and ensuring activity containment, limiting radioactive discharges to the environment and protecting of the staff. Parallel to the planning phase of the VEK plant a cold prototype test facility (PVA) covering the main process steps was constructed and operated at the Institut fuer Nukleare Entsorgung (INE) of FZK. This pilot operation served to demonstrate the process technique and its operation with a simulated waste solution, and to test the main items of equipment, but was conducted also to use the experimental data and experience to back the safety concept of the radioactive VEK plant. This paper describes the basis of the safety concept of the VEK plant and results of the failure effect analysis. The experimental simulation of the failure scenarios, their effect on the process behavior, and the controllability of these events as well as the effect of the results on the safety concept of VEK are discussed. Additionally, an overview of the actual status of civil work and manufacturing of

  8. Rosetta/COSIMA: High Resolution In-Situ Dust Analysis at Comet 67P/Churyumov-Gerasimenkov

    NASA Astrophysics Data System (ADS)

    Krueger, Harald; Engrand, C.; Fischer, H.; Hilchenbach, M.; Hornung, K.; Kissel, J.; Stephan, T.; Thirkell, L.; Trieloff, M.; Thomas, R.; Tubiana, C.; Varmuza, K.

    2006-09-01

    The COmetary Secondary Ion Mass Analyser (COSIMA) instrument on board ESA's Rosetta spacecraft is a high-resolution time-of-flight mass spectrometer dedicated to the in-situ analysis of cometary dust. Rosetta was launched in 2004 and will reach comet 67P/Churyumov-Gerasimenkov in 2014. The COSIMA instrument will collect cometary dust on metal targets and identify grains with sizes 10 micron and bigger with an optical camera. Material from the grain surface is sputtered with an indium ion beam and the generated secondary ions are accelerated in an electric field. Time-of-flight secondary ion mass spectra are obtained with a mass resolution of approximately 2000 at m = 100 amu. The goal of the COSIMA investigation is the in-situ characterisation of the elemental, molecular, mineralogic, and isotopic composition of dust in the coma of comet 67P/C-G. To reach this goal, we perform an extensive laboratory measurement program with a COSIMA reference instrument (RM), a twin of the flight instrument, located at Max-Planck-Institut fuer Sonnensystemforschung (MPS). Cometary dust analogues are prepared from natural and synthetic minerals (pyroxene, olivine, hydrous silicates, sulfides, etc.) with known composition and, which are believed to exist in comets. Reference spectra of these samples are obtained with the COSIMA RM instrument and with laboratory time-of-flight secondary ion mass spectrometer (TOF-SIMS) instruments located at the University of Muenster/Germany and the Laboratoire de Physique & Chimie de L'Environment in Orleans/France. We will present first results on the calibration of the COSIMA RM instrument and the identification of the elemental and mineralogic composition of reference samples.

  9. X-ray And EUV Spectroscopy Of Highly Charged Tungsten Ions

    SciTech Connect

    Biedermann, Christoph; Radtke, Rainer

    2009-09-10

    The Berlin EBIT has been established by the Max-Planck-Institut fuer Plasmaphysik to generate atomic physics data in support of research in the field of controlled nuclear fusion, by measuring the radiation from highly charged ions in the x-ray, extreme ultraviolet and visible spectral ranges and providing valuable diagnostics for high temperature plasmas. In future fusion devices, for example ITER, currently being constructed at Cadarache, France, the plasma facing components will be armored with high-Z materials, most likely tungsten, due to the favorable properties of this element. At the same time the tremendous radiation cooling of these high-Z materials represents a threat to fusion and obliges one to monitor carefully the radiation. With EBIT a selected ensemble of ions in specific charge states can be produced, stored and excited for spectroscopic investigations. Employing this technique, we have for example resolved the wide structure observed around 5 nm at the ASDEX Upgrade tokamak as originating from E1-transitions into the open 4d shell of tungsten ions in charge states 25+ to 37+ producing a band-like emission pattern. Further, these ions emit well-separated M1 lines in the EUV range around 65 nm suitable for plasma diagnostics. Kr-like to Cr-like tungsten ions (38+ to 50+) show strong soft-x-ray lines in the range 0.5 to 2 and 5 to 15 nm. Lines of even higher charged tungsten ions, up to Ne-like W{sup 64+}, abundant in the core plasma of present and future fusion test devices, have been investigated with high resolution Bragg-crystal spectroscopy at 0.13 nm. Recently, x-ray spectroscopic measurements of the dielectronic recombination LMn resonances of W{sup 60+} to W{sup 67+} ions have been preformed and compare well with atomic structure calculations.

  10. Clearance Measurements prior to the Shut-Down of ERAM

    SciTech Connect

    Kunze, V.; Ibach, T.M.

    2008-07-01

    Low and intermediate level radioactive waste was emplaced in the Morsleben Repository (ERAM), a former salt mine, until 1998. Now the German Federal Office for Radiation Protection (Bundesamt fuer Strahlenschutz - BfS) has applied for the decommissioning of the plant. The ERAM's own radioactive waste requires clearance as far as it may not remain in the repository. The German Mining Law also demands all non-mining typical waste to be removed from the mine when being decommissioned and the Waste Avoidance, Recovery and Disposal Act demands waste to remain within the economy cycle if this is economically justifiable. Therefore new clearance measuring devices have to be applied using gamma and beta radiation to determine the contamination of objects and substances regarding the special nuclide spectra in the ERAM. Even if a very multifaceted radionuclide spectrum is to be expected due to the fact that the emplaced waste results from various applications such as nuclear engineering, medicine, research, and military, numerous investigations have confirmed that only a few radionuclides have to be considered. To facilitate this procedure the controlled area of the ERAM is to be classified according to different contamination categories. Assumptions about the radionuclide mixture are permanently controlled by routine measurements and the evaluation of possible contamination events. The considerations about the radionuclide mixture and the structure of the controlled area will be described in this presentation. Furthermore a new methodology to measure Sr-90 is discussed which uses the Cerenkov effect and the low level of background gamma radiation in the salt mine. (authors)

  11. Gas Generation Rates as an Indicator for the Long Term Stability of Radioactive Waste Products

    SciTech Connect

    Steyer, S.; Brennecke, P.; Bandt, G.; Kroger, H.

    2007-07-01

    Pursuant to the 'Act on the Peaceful Utilization of Atomic Energy and the Protection against its Hazards' (Atomic Energy Act) the Federal Office for Radiation Protection (Bundesamt fuer Strahlenschutz, BfS) is legally responsible for the construction and operation of federal facilities for the disposal of radioactive waste. Within the scope of this responsibility, particular due to par. 74(1) Ordinance on Radiation Protection, BfS defines all safety-related requirements on waste packages envisaged for disposal, establishes guidelines for the conditioning of radioactive waste and approves the fulfillment of the waste acceptance requirements within the radioactive waste quality control system. BfS also provides criteria to enable the assessment of methods for the treatment and packaging of radioactive waste to produce waste packages suitable for disposal according to par. 74(2) Ordinance on Radiation Protection. Due to the present non-availability of a repository in Germany, quality control measures for all types of radioactive waste products are carried out prior to interim storage with respect to the future disposal. As a result BfS approves the demonstrated properties of the radioactive waste packages and confirms the fulfillment of the respective requirements. After several years of storage the properties of waste packages might have changed. By proving, that such changes have no significant impact on the quality of the waste product, the effort of requalification could be minimized. Therefore, data on the long-term behavior of radioactive waste products need to be acquired and indicators to prove the long-term stability have to be quantified. Preferably, such indicators can be determined easily with non-destructive methods, even for legacy waste packages. A promising parameter is the gas generation rate. The relationship between gas generation rate and long term stability is presented as first result of an ongoing study on behalf of BfS. Permissible gas

  12. Methodology, status and plans for development and assessment of the code ATHLET

    SciTech Connect

    Teschendorff, V.; Austregesilo, H.; Lerchl, G.

    1997-07-01

    The thermal-hydraulic computer code ATHLET (Analysis of THermal-hydraulics of LEaks and Transients) is being developed by the Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS) for the analysis of anticipated and abnormal plant transients, small and intermediate leaks as well as large breaks in light water reactors. The aim of the code development is to cover the whole spectrum of design basis and beyond design basis accidents (without core degradation) for PWRs and BWRs with only one code. The main code features are: advanced thermal-hydraulics; modular code architecture; separation between physical models and numerical methods; pre- and post-processing tools; portability. The code has features that are of special interest for applications to small leaks and transients with accident management, e.g. initialization by a steady-state calculation, full-range drift-flux model, dynamic mixture level tracking. The General Control Simulation Module of ATHLET is a flexible tool for the simulation of the balance-of-plant and control systems including the various operator actions in the course of accident sequences with AM measures. The code development is accompained by a systematic and comprehensive validation program. A large number of integral experiments and separate effect tests, including the major International Standard Problems, have been calculated by GRS and by independent organizations. The ATHLET validation matrix is a well balanced set of integral and separate effects tests derived from the CSNI proposal emphasizing, however, the German combined ECC injection system which was investigated in the UPTF, PKL and LOBI test facilities.

  13. Autocollimators for Deflectometry: Current Status and Future Progress

    SciTech Connect

    Geckeler, Ralf; Just, Andreas; Krause, Michael; Yashchuk, Valeriy V.

    2009-06-15

    The proliferation of autocollimator-based surface profilometers at synchrotron metrology laboratories worldwide necessitates a detailed understanding of the parameters influencing their angular response. A comprehensive overview of the current status of autocollimator characterization and calibration at the Physikalisch-Technische Bundesanstalt (PTB) and its implications for their optimal application are provided, as well as information on future challenges and expected progress. Autocollimator-based deflectometric profilometers are in operation at the PTB, the Advanced Light Source (ALS), Lawrence Berkeley National Laboratory, USA, the BESSY II, Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Germany, and the Diamond Light Source Ltd (DLS), UK. A continuous topic of research at the PTB is to investigate the factors influencing the angular response of autocollimators and to provide the most accurate calibration of the instruments to aid users in their application and manufacturers in their improvements [1-3]. At the PTB, the calibration of autocollimators is realized by a direct comparison of the devices with the primary angle reference standard [1]. With highly stable autocollimators, calibrations with standard measurement uncertainties of u = 0.003 arcsec (15 nrad) have been achieved [2,3]. The influence of a number of parameters on the angle measurement with autocollimators have been investigated in detail, such as the reflectivity of the surface under test (SUT), the diameter and shape of the aperture stop, its position both along the autocollimator's optical axis and perpendicular to it [2], as well as the optical path length of the autocollimator beam [3]. Extensive information on these errors and their minimization will be presented.

  14. The Musca cloud: A 6 pc-long velocity-coherent, sonic filament

    NASA Astrophysics Data System (ADS)

    Hacar, A.; Kainulainen, J.; Tafalla, M.; Beuther, H.; Alves, J.

    2016-03-01

    Filaments play a central role in the molecular clouds' evolution, but their internal dynamical properties remain poorly characterized. To further explore the physical state of these structures, we have investigated the kinematic properties of the Musca cloud. We have sampled the main axis of this filamentary cloud in 13CO and C18O (2-1) lines using APEX observations. The different line profiles in Musca shows that this cloud presents a continuous and quiescent velocity field along its ~6.5 pc of length. With an internal gas kinematics dominated by thermal motions (i.e. σNT/cs ≲ 1) and large-scale velocity gradients, these results reveal Musca as the longest velocity-coherent, sonic-like object identified so far in the interstellar medium. The transonic properties of Musca present a clear departure from the predicted supersonic velocity dispersions expected in the Larson's velocity dispersion-size relationship, and constitute the first observational evidence of a filament fully decoupled from the turbulent regime over multi-parsec scales. This publication is based on data acquired with the Atacama Pathfinder Experiment (APEX). APEX is a collaboration between the Max-Planck-Institut fuer Radioastronomie, the European Southern Observatory, and the Onsala Space Observatory (ESO programme 087.C-0583).The reduced datacubes as FITS files are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/587/A97

  15. Carbon ion radiotherapy of skull base chondrosarcomas

    SciTech Connect

    Schulz-Ertner, Daniela . E-mail: Daniela.Ertner@med.uni-heidelberg.de; Nikoghosyan, Anna; Hof, Holger; Didinger, Bernd; Combs, Stephanie E.; Jaekel, Oliver; Karger, Christian P.; Edler, Lutz; Debus, Juergen

    2007-01-01

    Purpose: To evaluate the effectiveness and toxicity of carbon ion radiotherapy in chondrosarcomas of the skull base. Patients and Methods: Between November 1998 and September 2005, 54 patients with low-grade and intermediate-grade chondrosarcomas of the skull base have been treated with carbon ion radiation therapy (RT) using the raster scan technique at the Gesellschaft fuer Schwerionenforschung in Darmstadt, Germany. All patients had gross residual tumors after surgery. Median total dose was 60 CGE (weekly fractionation 7 x 3.0 CGE). All patients were followed prospectively in regular intervals after treatment. Local control and overall survival rates were calculated using the Kaplan-Meier method. Toxicity was assessed according to the Common Terminology Criteria (CTCAE v.3.0) and Radiation Therapy Oncology Group (RTOG)/European Organization for Research and Treatment of Cancer (EORTC) score. Results: Median follow-up was 33 months (range, 3-84 months). Only 2 patients developed local recurrences. The actuarial local control rates were 96.2% and 89.8% at 3 and 4 years; overall survival was 98.2%at 5 years. Only 1 patient developed a mucositis CTCAE Grade 3; the remaining patients did not develop any acute toxicities >CTCAE Grade 2. Five patients developed minor late toxicities (RTOG/EORTC Grades 1-2), including bilateral cataract (n = 1), sensory hearing loss (n = 1), a reduction of growth hormone (n = 1), and asymptomatic radiation-induced white matter changes of the adjacent temporal lobe (n = 2). Grade 3 late toxicity occurred in 1 patient (1.9%) only. Conclusions: Carbon ion RT is an effective treatment for low- and intermediate-grade chondrosarcomas of the skull base offering high local control rates with low toxicity.

  16. Effectiveness of Carbon Ion Radiotherapy in the Treatment of Skull-Base Chordomas

    SciTech Connect

    Schulz-Ertner, Daniela . E-mail: Daniela.Ertner@med.uni-heidelberg.de; Karger, Christian P.; Feuerhake, Alexandra; Nikoghosyan, Anna; Combs, Stephanie E.; Jaekel, Oliver; Edler, Lutz; Scholz, Michael; Debus, Juergen

    2007-06-01

    Purpose: The aim of this study was to evaluate the effectiveness and toxicity of carbon ion radiotherapy in chordomas of the skull base. Methods and Materials: Between November 1998 and July 2005, a total of 96 patients with chordomas of the skull base have been treated with carbon ion radiation therapy (RT) using the raster scan technique at the Gesellschaft fuer Schwerionenforschung (GSI) in Darmstadt, Germany. All patients had gross residual tumors. Median total dose was 60 CGE (range, 60-70 CGE) delivered in 20 fractions within 3 weeks. Local control and overall survival rates were calculated using the Kaplan-Meier method. Toxicity was assessed according to the Common Terminology Criteria (CTCAE v.3.0) and the Radiation Therapy Oncology Group (RTOG) / European Organization for Research and Treatment of Cancer (EORTC) score. Results: Mean follow-up was 31 months (range, 3-91 months). Fifteen patients developed local recurrences after carbon ion RT. The actuarial local control rates were 80.6% and 70.0% at 3 and 5 years, respectively. Target doses in excess of 60 CGE and primary tumor status were associated with higher local control rates. Overall survival was 91.8% and 88.5% at 3 and 5 years, respectively. Late toxicity consisted of optic nerve neuropathy RTOG/EORTC Grade 3 in 4.1% of the patients and necrosis of a fat plomb in 1 patient. Minor temporal lobe injury (RTOG/EORTC Grade 1-2) occurred in 7 patients (7.2%). Conclusions: Carbon ion RT offers an effective treatment option for skull-base chordomas with acceptable toxicity. Doses in excess of 75 CGE with 2 CGE per fraction are likely to increase local control probability.

  17. Correlations between posterior longitudinal ligament status and size of bone fragment in thoracolumbar burst fractures

    PubMed Central

    Hu, Zhaohui; Zhou, Yanhong; Li, Ningning; Xie, Xiangtao

    2015-01-01

    This study aim to determine the correlation between the size of bone fragment and injury of posterior longitudinal ligament (PLL). In this study retrospectively analyze medical chart of patients with thoracolumbar burst fractures from June 2010 to December 2012. Patients were divided into two groups (Intact group and Disrupted group) according to the result of MRI assessing status of PLL. All the fractures were classified according to the Arbeit Fuer Osteoosynthese (AO) classification system. Neurological status was classified according to American Spinal Injury Association (ASIA). Mimics measured the height and width of bone fragment (HBF and WBF), transverse canal diameter (TCD) and calculate the height of posterior wall of the injury vertebrae, ratio of height of bone fragment occupying height of posterior wall of vertebrae body (RHBF) and ratio of width of bone fragment occupying transverse canal diameter (RWBF). The results indicated that 52 patients were included in the study. There are 31 patients with intact PLL and 21 patients with disrupted PLL. There was significant difference on the HBF (t = -3.646, P = 0.001), WBF (t = -3.615, P = 0.001), RHBF (t = -4.124, P = 0.000) and RWBF (t = -3.305, P = 0.002) between the intact group and injury group. There was a significant correlation between injury of PLL and ASIA grade (OR = 7.851, P = 0.005), and AO classification (OR = 6.401, P = 0.011), and RHBF (OR = 6.455, P = 0.011), and HBF (OR = 5.208, P = 0.022). In conclusion, the results of this study indicate that AO classification, ASIA grade, HBF and RHBF could act as the predictors of injury of PLL. PMID:25932230

  18. Natural and False Color Views of Europa

    NASA Technical Reports Server (NTRS)

    1996-01-01

    This image shows two views of the trailing hemisphere of Jupiter's ice-covered satellite, Europa. The left image shows the approximate natural color appearance of Europa. The image on the right is a false-color composite version combining violet, green and infrared images to enhance color differences in the predominantly water-ice crust of Europa. Dark brown areas represent rocky material derived from the interior, implanted by impact, or from a combination of interior and exterior sources. Bright plains in the polar areas (top and bottom) are shown in tones of blue to distinguish possibly coarse-grained ice (dark blue) from fine-grained ice (light blue). Long, dark lines are fractures in the crust, some of which are more than 3,000 kilometers (1,850 miles) long. The bright feature containing a central dark spot in the lower third of the image is a young impact crater some 50 kilometers (31 miles) in diameter. This crater has been provisionally named 'Pwyll' for the Celtic god of the underworld.

    Europa is about 3,160 kilometers (1,950 miles) in diameter, or about the size of Earth's moon. This image was taken on September 7, 1996, at a range of 677,000 kilometers (417,900 miles) by the solid state imaging television camera onboard the Galileo spacecraft during its second orbit around Jupiter. The image was processed by Deutsche Forschungsanstalt fuer Luftund Raumfahrt e.V., Berlin, Germany.

    The Jet Propulsion Laboratory, Pasadena, CA, manages the mission for NASA's Office of Space Science, Washington, DC.

    This image and other images and data received from Galileo are posted on the Galileo mission home page on the World Wide Web at http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at http://www.jpl.nasa.gov/galileo/sepo

  19. Multi objectives model to optimise the economical value of agriculture water use in Gaza Strip

    NASA Astrophysics Data System (ADS)

    Ouda, O.; Bardossy, A.

    2003-04-01

    Multi objectives model to optimise the economical value of agriculture water use in Gaza Strip. O. Ouda (1), A. Bárdossy (1) (1) Institut fuer Wasserbau, Universitaet Stuttgart Fax: +49-(0)711-685-4746/ e-mail: omar.ouda@iws.uni-stuttgart.de Key words: Multi objectives model, agriculture water use, and Gaza Strip. ============================================================================ Abstract The Gaza Strip faces a serious water shortage problem, with a present water shortage of about 61 Mm3/year. The problem is projected to become even larger in the future due to a high population growth of about 3.2%. The water deficit is presently covered by abstraction of the groundwater beyond the sustainable yield, where groundwater is the only natural source in Gaza strip. Irrigated agriculture consumed about 60% (90 Mm3/year) of water in Gaza strip. The economical value of water used for agriculture propose is very low in comparison with water opportunity cost of 1 US/m3 , ( seawater desalination cost). A Multi objective optimisation model (MOM) based on mathematical programming techniques aimed to optimise the economical return value of agriculture water use has been formulated, where 20 crops distributed over 16 zones have been considered. The available agriculture area, Available treated wastewater, Local agriculture products demand were considered as constrains. Irrigation water demand for each crop for three meteorological conditions dry, wet and average year, and Average product prices were considered as variables. A modification of the MOM models has been made toward equitable profit distribution (US/hectare) among the different 16 zones, where additional constrain of minimum profit per hectare in each zone has been implemented. Finally a sensitivity analysis for the effect of water price, crop price and crop products demand on the model output has been made. The MOM presents a good analytical basis for policy makers toward optimising the economical return of

  20. Performance Simulations for a Spaceborne Methane Lidar Mission

    NASA Technical Reports Server (NTRS)

    Kiemle, C.; Kawa, Stephan Randolph; Quatrevalet, Mathieu; Browell, Edward V.

    2014-01-01

    Future spaceborne lidar measurements of key anthropogenic greenhouse gases are expected to close current observational gaps particularly over remote, polar, and aerosol-contaminated regions, where actual in situ and passive remote sensing observation techniques have difficulties. For methane, a "Methane Remote Lidar Mission" was proposed by Deutsches Zentrum fuer Luft- und Raumfahrt and Centre National d'Etudes Spatiales in the frame of a German-French climate monitoring initiative. Simulations assess the performance of this mission with the help of Moderate Resolution Imaging Spectroradiometer and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations of the earth's surface albedo and atmospheric optical depth. These are key environmental parameters for integrated path differential absorption lidar which uses the surface backscatter to measure the total atmospheric methane column. Results showthat a lidar with an average optical power of 0.45W at 1.6 µm wavelength and a telescope diameter of 0.55 m, installed on a low Earth orbit platform(506 km), will measure methane columns at precisions of 1.2%, 1.7%, and 2.1% over land, water, and snow or ice surfaces, respectively, for monthly aggregated measurement samples within areas of 50 × 50 km2. Globally, the mean precision for the simulated year 2007 is 1.6%, with a standard deviation of 0.7%. At high latitudes, a lower reflectance due to snow and ice is compensated by denser measurements, owing to the orbital pattern. Over key methane source regions such as densely populated areas, boreal and tropical wetlands, or permafrost, our simulations show that the measurement precision will be between 1 and 2%.

  1. Correlation of bone fragments reposition and related parameters in thoracolumbar burst fractures patients

    PubMed Central

    Dai, Jianhui; Lin, Haibin; Niu, Susheng; Wu, Xianwei; Wu, Yujun; Zhang, Huaizhi

    2015-01-01

    The aim of this study is to determine if thoracolumbar vertebral body collapse or canal compromise (CC) is associated with reposition of bone fragment. We retrospective review medical charts of patients with thoracolumbar burst fractures from July 2010 to September 2013. The fractures were classified according to the Arbeit Fuer Osteoosynthese (AO) classification system. Neurological status was classified according to American Spinal Injury Association (ASIA). Patients were divided into two groups (reposition group and non-reposition group) according to whether the bone fragments were reposition or non-reposition after surgery. Mimics measured mid-sagittal canal diameter (MSD), transverse canal diameter (TCD), local kyphosis (LK) and calculated anterior vertebral body compression ratio (AVBCR), middle vertebral body compression ratio (MVBCR), posterior vertebral body compression ratio (PVBCR), and mid-sagittal canal diameter compression ratio (MSDCR) on the preoperative CT image. The results indicated that 55 patients were included in the study. There are 35 patients with reposition of bone fragment and 20 patients with non-reposition of bone fragment after surgery. There were significant difference on MSD (t = 3.258, P = 0.002), TCD (t = 2.197, P = 0.032), AVBCR (t = -2.063, P = 0.044), MVBCR (t = -2.526, P = 0.015), PVBCR (t = -2.211, P = 0.031), MSDCR (t = -4.975, P = 0.000) between two groups before surgery. There was a significant correlation between reposition of bone fragment and AO classification (OR = 5.251, P = 0.022), and MSDCR (OR = 7.366, P = 0.007). There was no significant correlation between reposition and AVBCR, MVBCR, PVBCR, LK, MSD and TCD. In conclusion, this study indicates that AO classification and MSDCR are predictors of reposition of bone fragment. PMID:26379913

  2. Precision measurement of the integrated luminosity of the data taken by BESIII at center-of-mass energies between 3.810 GeV and 4.600 GeV

    NASA Astrophysics Data System (ADS)

    Ablikim, M.; N. Achasov, M.; Ai, X. C.; Albayrak, O.; Albrecht, M.; J. Ambrose, D.; Amoroso, A.; An, F. F.; An, Q.; Bai, J. Z.; R. Baldini, Ferroli; Ban, Y.; W. Bennett, D.; V. Bennett, J.; Bertani, M.; Bettoni, D.; Bian, J. M.; Bianchi, F.; Boger, E.; Bondarenko, O.; Boyko, I.; A. Briere, R.; Cai, H.; Cai, X.; Cakir, O.; Calcaterra, A.; Cao, G. F.; A. Cetin, S.; Chang, J. F.; Chelkov, G.; Chen, G.; Chen, H. S.; Chen, H. Y.; Chen, J. C.; Chen, M. L.; Chen, S. J.; Chen, X.; Chen, X. R.; Chen, Y. B.; Cheng, H. P.; Chu, X. K.; Cibinetto, G.; Cronin-Hennessy, D.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; Dedovich, D.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; F. De, Mori; Ding, Y.; Dong, C.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Du, S. X.; Duan, P. F.; Fan, J. Z.; Fang, J.; Fang, S. S.; Fang, X.; Fang, Y.; Fava, L.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Fioravanti, E.; Fritsch, M.; Fu, C. D.; Gao, Q.; Gao, Y.; Gao, Z.; Garzia, I.; Geng, C.; Goetzen, K.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, M. H.; Gu, Y. T.; Guan, Y. H.; Guo, A. Q.; Guo, L. B.; Guo, Y.; P. Guo, Y.; Haddadi, Z.; Hafner, A.; Han, S.; Han, Y. L.; Hao, X. Q.; A. Harris, F.; He, K. L.; He, Z. Y.; Held, T.; Heng, Y. K.; Hou, Z. L.; Hu, C.; Hu, H. M.; Hu, J. F.; Hu, T.; Hu, Y.; Huang, G. M.; Huang, G. S.; Huang, H. P.; Huang, J. S.; Huang, X. T.; Huang, Y.; Hussain, T.; Ji, Q.; Ji, Q. P.; Ji, X. B.; Ji, X. L.; Jiang, L. L.; Jiang, L. W.; Jiang, X. S.; Jiao, J. B.; Jiao, Z.; Jin, D. P.; Jin, S.; Johansson, T.; Julin, A.; Kalantar-Nayestanaki, N.; Kang, X. L.; Kang, X. S.; Kavatsyuk, M.; C. Ke, B.; Kliemt, R.; Kloss, B.; B. Kolcu, O.; Kopf, B.; Kornicer, M.; Kuehn, W.; Kupsc, A.; Lai, W.; S. Lange, J.; M., Lara; Larin, P.; Leng, C.; Li, C. H.; Li, Cheng; Li, D. M.; Li, F.; Li, G.; Li, H. B.; Li, J. C.; Li, Jin; Li, K.; Li, K.; Li, Lei; Li, P. R.; Li, T.; Li, W. D.; Li, W. G.; Li, X. L.; Li, X. M.; Li, X. N.; Li, X. Q.; Li, Z. B.; Liang, H.; Liang, Y. F.; Liang, Y. T.; Liao, G. R.; X. Lin(Lin, D.; Liu, B. J.; Liu, C. X.; Liu, F. H.; Liu, Fang; Liu, Feng; Liu, H. B.; Liu, H. H.; Liu, H. H.; Liu, H. M.; Liu, J.; Liu, J. P.; Liu, J. Y.; Liu, K.; Liu, K. Y.; Liu, L. D.; Liu, P. L.; Liu, Q.; Liu, S. B.; Liu, X.; Liu, X. X.; Liu, Y. B.; Liu, Z. A.; Liu, Zhiqiang; Zhiqing, Liu; Loehner, H.; Lou, X. C.; Lu, H. J.; Lu, J. G.; Lu, R. Q.; Lu, Y.; Lu, Y. P.; Luo, C. L.; Luo, M. X.; Luo, T.; Luo, X. L.; Lv, M.; Lyu, X. R.; Ma, F. C.; Ma, H. L.; Ma, L. L.; Ma, Q. M.; Ma, S.; Ma, T.; Ma, X. N.; Ma, X. Y.; E. Maas, F.; Maggiora, M.; A. Malik, Q.; Mao, Y. J.; Mao, Z. P.; Marcello, S.; G. Messchendorp, J.; Min, J.; Min, T. J.; E. Mitchell, R.; Mo, X. H.; Mo, Y. J.; C. Morales, Morales; Moriya, K.; Yu. Muchnoi, N.; Muramatsu, H.; Nefedov, Y.; Nerling, F.; B. Nikolaev, I.; Ning, Z.; Nisar, S.; Niu, S. L.; Niu, X. Y.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Patteri, P.; Pelizaeus, M.; Peng, H. P.; Peters, K.; Ping, J. L.; Ping, R. G.; Poling, R.; Pu, Y. N.; Qi, M.; Qian, S.; Qiao, C. F.; Qin, L. Q.; Qin, N.; Qin, X. S.; Qin, Y.; Qin, Z. H.; Qiu, J. F.; H. Rashid, K.; F. Redmer, C.; Ren, H. L.; Ripka, M.; Rong, G.; Ruan, X. D.; Santoro, V.; Sarantsev, A.; Savrié, M.; Schoenning, K.; Schumann, S.; Shan, W.; Shao, M.; Shen, C. P.; Shen, P. X.; Shen, X. Y.; Sheng, H. Y.; Song, W. M.; Song, X. Y.; Sosio, S.; Spataro, S.; Sun, G. X.; Sun, J. F.; Sun, S. S.; Sun, Y. J.; Sun, Y. Z.; Sun, Z. J.; Sun, Z. T.; Tang, C. J.; Tang, X.; Tapan, I.; H. Thorndike, E.; Tiemens, M.; Toth, D.; Ullrich, M.; Uman, I.; S. Varner, G.; Wang, B.; Wang, B. L.; Wang, D.; Wang, D. Y.; Wang, K.; Wang, L. L.; Wang, L. S.; Wang, M.; Wang, P.; Wang, P. L.; Wang, Q. J.; Wang, S. G.; Wang, W.; Wang, X. F.; Yadi, Wang; Wang, Y. F.; Wang, Y. Q.; Wang, Z.; Wang, Z. G.; Wang, Z. H.; Wang, Z. Y.; Weber, T.; Wei, D. H.; Wei, J. B.; Weidenkaff, P.; Wen, S. P.; Wiedner, U.; Wolke, M.; Wu, L. H.; Wu, Z.; Xia, L. G.; Xia, Y.; Xiao, D.; Xiao, Z. J.; Xie, Y. G.; Xiu, Q. L.; Xu, G. F.; Xu, L.; Xu, Q. J.; Xu, Q. N.; Xu, X. P.; Yan, L.; Yan, W. B.; Yan, W. C.; Yan, Y. H.; Yang, H. X.; Yang, L.; Yang, Y.; Yang, Y. X.; Ye, H.; Ye, M.; Ye, M. H.; Yin, J. H.; Yu, B. X.; Yu, C. X.; Yu, H. W.; Yu, J. S.; Yuan, C. Z.; Yuan, W. L.; Yuan, Y.; Yuncu, A.; A. Zafar, A.; Zallo, A.; Zeng, Y.; Zhang, B. X.; Zhang, B. Y.; Zhang, C.; Zhang, C. C.; Zhang, D. H.; Zhang, H. H.; Zhang, H. Y.; Zhang, J. J.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; Zhang, J. Y.; Zhang, J. Z.; Zhang, K.; Zhang, L.; Zhang, S. H.; Zhang, X. Y.; Zhang, Y.; Zhang, Y. H.; Zhang, Y. T.; Zhang, Z. H.; Zhang, Z. P.; Zhang, Z. Y.; Zhao, G.; Zhao, J. W.; Zhao, J. Y.; Zhao, J. Z.; Zhao, Lei; Zhao, Ling; Zhao, M. G.; Zhao, Q.; Zhao, Q. W.; Zhao, S. J.; Zhao, T. C.; Zhao, Y. B.; Zhao, Z. G.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, W. J.; Zheng, Y. H.; Zhong, B.; Zhou, L.; Zhou, Li; Zhou, X.; Zhou, X. K.; Zhou, X. R.; Zhou, X. Y.; Zhu, K.; Zhu, K. J.; Zhu, S.; Zhu, X. L.; Zhu, Y. C.; Zhu, Y. S.; Zhu, Z. A.; Zhuang, J.; Zotti, L.; Zou, B. S.; Zou, J. H.; BESIII Collaboration

    2015-09-01

    From December 2011 to May 2014, about 5 fb-1 of data were taken with the BESIII detector at center-of-mass energies between 3.810 GeV and 4.600 GeV to study the charmonium-like states and higher excited charmonium states. The time-integrated luminosity of the collected data sample is measured to a precision of 1% by analyzing events produced by the large-angle Bhabha scattering process. Supported by National Key Basic Research Program of China (2015CB856700), National Natural Science Foundation of China (NSFC) (11125525, 11235011, 11322544, 11335008, 11425524), Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program, Joint Large-Scale Scientific Facility Funds of the NSFC and CAS (11179007, U1232201, U1332201) CAS (KJCX2-YW-N29, KJCX2-YW-N45), 100 Talents Program of CAS, INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology, German Research Foundation DFG (Collaborative Research Center CRC-1044), Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey (DPT2006K-120470), Russian Foundation for Basic Research (14-07-91152), U.S. Department of Energy (DE-FG02-04ER41291, DE-FG02-05ER41374, DE-FG02-94ER40823, DESC0010118), U.S. National Science Foundation, University of Groningen (RuG) and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt and WCU Program of National Research Foundation of Korea (R32-2008-000-10155-0)

  3. Measurement of the absolute branching fraction of D+ → K̅0 e+νe via K̅0 → π 0 π 0

    NASA Astrophysics Data System (ADS)

    Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; An, F. F.; An, Q.; Bai, J. Z.; Baldini Ferroli, R.; Ban, Y.; Bennett, D. W.; Bennett, J. V.; Bertani, M.; Bettoni, D.; Bian, J. M.; Bianchi, F.; Boger, E.; Boyko, I.; Briere, R. A.; Cai, H.; Cai, X.; Cakir, O.; Calcaterra, A.; Cao, G. F.; Cetin, S. A.; Chang, J. F.; Chelkov, G.; Chen, G.; Chen, H. S.; Chen, H. Y.; Chen, J. C.; Chen, M. L.; Chen, S.; Chen, S. J.; Chen, X.; Chen, X. R.; Chen, Y. B.; Cheng, H. P.; Chu, X. K.; Cibinetto, G.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; Dedovich, D.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; De Mori, F.; Ding, Y.; Dong, C.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Dou, Z. L.; Du, S. X.; Duan, P. F.; Fan, J. Z.; Fang, J.; Fang, S. S.; Fang, X.; Fang, Y.; Farinelli, R.; Fava, L.; Fedorov, O.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Fioravanti, E.; Fritsch, M.; Fu, C. D.; Gao, Q.; Gao, X. L.; Gao, X. Y.; Gao, Y.; Gao, Z.; Garzia, I.; Goetzen, K.; Gong, L.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, M. H.; Gu, Y. T.; Guan, Y. H.; Guo, A. Q.; Guo, L. B.; Guo, R. P.; Guo, Y.; Guo, Y. P.; Haddadi, Z.; Hafner, A.; Han, S.; Hao, X. Q.; Harris, F. A.; He, K. L.; Held, T.; Heng, Y. K.; Hou, Z. L.; Hu, C.; Hu, H. M.; Hu, J. F.; Hu, T.; Hu, Y.; Huang, G. S.; Huang, J. S.; Huang, X. T.; Huang, X. Z.; Huang, Y.; Huang, Z. L.; Hussain, T.; Ji, Q.; Ji, Q. P.; Ji, X. B.; Ji, X. L.; Jiang, L. W.; Jiang, X. S.; Jiang, X. Y.; Jiao, J. B.; Jiao, Z.; Jin, D. P.; Jin, S.; Johansson, T.; Julin, A.; Kalantar-Nayestanaki, N.; Kang, X. L.; Kang, X. S.; Kavatsyuk, M.; Ke, B. C.; Kiese, P.; Kliemt, R.; Kloss, B.; Kolcu, O. B.; Kopf, B.; Kornicer, M.; Kupsc, A.; Kühn, W.; Lange, J. S.; Lara, M.; Larin, P.; Leng, C.; Li, C.; Li, Cheng; Li, D. M.; Li, F.; Li, F. Y.; Li, G.; Li, H. B.; Li, H. J.; Li, J. C.; Li, Jin; Li, K.; Li, K.; Li, Lei; Li, P. R.; Li, Q. Y.; Li, T.; Li, W. D.; Li, W. G.; Li, X. L.; Li, X. N.; Li, X. Q.; Li, Y. B.; Li, Z. B.; Liang, H.; Liang, Y. F.; Liang, Y. T.; Liao, G. R.; Lin, D. X.; Liu, B.; Liu, B. J.; Liu, C. X.; Liu, D.; Liu, F. H.; Liu, Fang; Liu, Feng; Liu, H. B.; Liu, H. H.; Liu, H. H.; Liu, H. M.; Liu, J.; Liu, J. B.; Liu, J. P.; Liu, J. Y.; Liu, K.; Liu, K. Y.; Liu, L. D.; Liu, P. L.; Liu, Q.; Liu, S. B.; Liu, X.; Liu, Y. B.; Liu, Z. A.; Liu, Zhiqing; Loehner, H.; Lou, X. C.; Lü, H. J.; Lü, J. G.; Lu, Y.; Lu, Y. P.; Luo, C. L.; Luo, M. X.; Luo, T.; Luo, X. L.; Lü, X. R.; Ma, F. C.; Ma, H. L.; Ma, L. L.; Ma, M. M.; Ma, Q. M.; Ma, T.; Ma, X. N.; Ma, X. Y.; Ma, Y. M.; Maas, F. E.; Maggiora, M.; Mao, Y. J.; Mao, Z. P.; Marcello, S.; Messchendorp, J. G.; Min, J.; Min, T. J.; Mitchell, R. E.; Mo, X. H.; Mo, Y. J.; Morales Morales, C.; Muchnoi, N. Yu.; Muramatsu, H.; Nefedov, Y.; Nerling, F.; Nikolaev, I. B.; Ning, Z.; Nisar, S.; Niu, S. L.; Niu, X. Y.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Pan, Y.; Patteri, P.; Pelizaeus, M.; Peng, H. P.; Peters, K.; Pettersson, J.; Ping, J. L.; Ping, R. G.; Poling, R.; Prasad, V.; Qi, H. R.; Qi, M.; Qian, S.; Qiao, C. F.; Qin, L. Q.; Qin, N.; Qin, X. S.; Qin, Z. H.; Qiu, J. F.; Rashid, K. H.; Redmer, C. F.; Ripka, M.; Rong, G.; Rosner, Ch.; Ruan, X. D.; Sarantsev, A.; Savrié, M.; Schoenning, K.; Schumann, S.; Shan, W.; Shao, M.; Shen, C. P.; Shen, P. X.; Shen, X. Y.; Sheng, H. Y.; Shi, M.; Song, W. M.; Song, X. Y.; Sosio, S.; Spataro, S.; Sun, G. X.; Sun, J. F.; Sun, S. S.; Sun, X. H.; Sun, Y. J.; Sun, Y. Z.; Sun, Z. J.; Sun, Z. T.; Tang, C. J.; Tang, X.; Tapan, I.; Thorndike, E. H.; Tiemens, M.; Ullrich, M.; Uman, I.; Varner, G. S.; Wang, B.; Wang, B. L.; Wang, D.; Wang, D. Y.; Wang, K.; Wang, L. L.; Wang, L. S.; Wang, M.; Wang, P.; Wang, P. L.; Wang, W.; Wang, W. P.; Wang, X. F.; Wang, Y.; Wang, Y. D.; Wang, Y. F.; Wang, Y. Q.; Wang, Z.; Wang, Z. G.; Wang, Z. H.; Wang, Z. Y.; Wang, Z. Y.; Weber, T.; Wei, D. H.; Weidenkaff, P.; Wen, S. P.; Wiedner, U.; Wolke, M.; Wu, L. H.; Wu, L. J.; Wu, Z.; Xia, L.; Xia, L. G.; Xia, Y.; Xiao, D.; Xiao, H.; Xiao, Z. J.; Xie, Y. G.; Xiu, Q. L.; Xu, G. F.; Xu, J. J.; Xu, L.; Xu, Q. J.; Xu, Q. N.; Xu, X. P.; Yan, L.; Yan, W. B.; Yan, W. C.; Yan, Y. H.; Yang, H. J.; Yang, H. X.; Yang, L.; Yang, Y. X.; Ye, M.; Ye, M. H.; Yin, J. H.; Yu, B. X.; Yu, C. X.; Yu, J. S.; Yuan, C. Z.; Yuan, W. L.; Yuan, Y.; Yuncu, A.; Zafar, A. A.; Zallo, A.; Zeng, Y.; Zeng, Z.; Zhang, B. X.; Zhang, B. Y.; Zhang, C.; Zhang, C. C.; Zhang, D. H.; Zhang, H. H.; Zhang, H. Y.; Zhang, J.; Zhang, J. J.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; Zhang, J. Y.; Zhang, J. Z.; Zhang, K.; Zhang, L.; Zhang, S. Q.; Zhang, X. Y.; Zhang, Y.; Zhang, Y. H.; Zhang, Y. N.; Zhang, Y. T.; Zhang, Yu; Zhang, Z. H.; Zhang, Z. P.; Zhang, Z. Y.; Zhao, G.; Zhao, J. W.; Zhao, J. Y.; Zhao, J. Z.; Zhao, Lei; Zhao, Ling; Zhao, M. G.; Zhao, Q.; Zhao, Q. W.; Zhao, S. J.; Zhao, T. C.; Zhao, Y. B.; Zhao, Z. G.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, W. J.; Zheng, Y. H.; Zhong, B.; Zhou, L.; Zhou, X.; Zhou, X. K.; Zhou, X. R.; Zhou, X. Y.; Zhu, K.; Zhu, K. J.; Zhu, S.; Zhu, S. H.; Zhu, X. L.; Zhu, Y. C.; Zhu, Y. S.; Zhu, Z. A.; Zhuang, J.; Zotti, L.; Zou, B. S.; Zou, J. H.; BESIII Collaboration

    2016-11-01

    By analyzing 2.93 fb-1 data collected at the center-of-mass energy with the BESIII detector, we measure the absolute branching fraction of the semileptonic decay D+ → K̅0 e+νe to be ℬ(D + → K̅0 e+νe) = (8.59 ± 0.14 ± 0.21)% using , where the first uncertainty is statistical and the second systematic. Our result is consistent with previous measurements within uncertainties.. Supported by National Key Basic Research Program of China (2009CB825204, 2015CB856700), National Natural Science Foundation of China (NSFC) (10935007, 11125525, 11235011, 11305180, 11322544, 11335008, 11425524, 11475123), Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program, CAS Center for Excellence in Particle Physics (CCEPP), Collaborative Innovation Center for Particles and Interactions (CICPI), Joint Large-Scale Scientific Facility Funds of NSFC and CAS (11179007, U1232201, U1332201, U1532101), CAS (KJCX2-YW-N29, KJCX2-YW-N45), 100 Talents Program of CAS, National 1000 Talents Program of China, INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology, German Research Foundation DFG (Collaborative Research Center CRC-1044), Istituto Nazionale di Fisica Nucleare, Italy, Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) (530-4CDP03), Ministry of Development of Turkey (DPT2006K-120470), National Natural Science Foundation of China (NSFC) (11405046, U1332103), Russian Foundation for Basic Research (14-07-91152), Swedish Resarch Council, U. S. Department of Energy (DE-FG02-04ER41291, DE-FG02-05ER41374, DE-SC0012069, DESC0010118), U.S. National Science Foundation, University of Groningen (RuG) and Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt, WCU Program of National Research Foundation of Korea (R32-2008-000-10155-0).

  4. Evidence for e+e- →γχc1,2 at center-of-mass energies from 4.009 to 4.360 GeV

    NASA Astrophysics Data System (ADS)

    Ablikim, M.; N. Achasov, M.; Ai, X. C.; Albayrak, O.; Albrecht, M.; J. Ambrose, D.; Amoroso, A.; An, F. F.; An, Q.; Bai, J. Z.; R. Baldini, Ferroli; Ban, Y.; W. Bennett, D.; V. Bennett, J.; Bertani, M.; Bettoni, D.; Bian, J. M.; Bianchi, F.; Boger, E.; Bondarenko, O.; Boyko, I.; A. Briere, R.; Cai, H.; Cai, X.; Cakir, O.; Calcaterra, A.; Cao, G. F.; A. Cetin, S.; Chang, J. F.; Chelkov, G.; Chen, G.; Chen, H. S.; Chen, H. Y.; Chen, J. C.; Chen, M. L.; Chen, S. J.; Chen, X.; Chen, X. R.; Chen, Y. B.; Cheng, H. P.; Chu, X. K.; Cibinetto, G.; Cronin-Hennessy, D.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; Dedovich, D.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; F. De, Mori; Ding, Y.; Dong, C.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Du, S. X.; Duan, P. F.; Fan, J. Z.; Fang, J.; Fang, S. S.; Fang, X.; Fang, Y.; Fava, L.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Fioravanti, E.; Fritsch, M.; Fu, C. D.; Gao, Q.; Gao, Y.; Gao, Z.; Garzia, I.; Goetzen, K.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, M. H.; Gu, Y. T.; Guan, Y. H.; Guo, A. Q.; Guo, L. B.; Guo, T.; Guo, Y.; P. Guo, Y.; Haddadi, Z.; Hafner, A.; Han, S.; Han, Y. L.; A. Harris, F.; He, K. L.; He, Z. Y.; Held, T.; Heng, Y. K.; Hou, Z. L.; Hu, C.; Hu, H. M.; Hu, J. F.; Hu, T.; Hu, Y.; Huang, G. M.; Huang, G. S.; Huang, H. P.; Huang, J. S.; Huang, X. T.; Huang, Y.; Hussain, T.; Ji, Q.; Ji, Q. P.; Ji, X. B.; Ji, X. L.; Jiang, L. L.; Jiang, L. W.; Jiang, X. S.; Jiao, J. B.; Jiao, Z.; Jin, D. P.; Jin, S.; Johansson, T.; Julin, A.; Kalantar-Nayestanaki, N.; Kang, X. L.; Kang, X. S.; Kavatsyuk, M.; C. Ke, B.; Kliemt, R.; Kloss, B.; B. Kolcu, O.; Kopf, B.; Kornicer, M.; Kuehn, W.; Kupsc, A.; Lai, W.; S. Lange, J.; M., Lara; Larin, P.; Li, C. H.; Li, Cheng; Li, D. M.; Li, F.; Li, G.; Li, H. B.; Li, J. C.; Li, Jin; Li, K.; Li, K.; Li, P. R.; Li, T.; Li, W. D.; Li, W. G.; Li, X. L.; Li, X. M.; Li, X. N.; Li, X. Q.; Li, Z. B.; Liang, H.; Liang, Y. F.; Liang, Y. T.; Liao, G. R.; X. Lin(Lin, D.; Liu, B. J.; L. Liu, C.; Liu, C. X.; Liu, F. H.; Liu, Fang; Liu, Feng; Liu, H. B.; Liu, H. H.; Liu, H. H.; Liu, H. M.; Liu, J.; Liu, J. P.; Liu, J. Y.; Liu, K.; Liu, K. Y.; Liu, L. D.; Liu, P. L.; Liu, Q.; Liu, S. B.; Liu, X.; Liu, X. X.; Liu, Y. B.; Liu, Z. A.; Liu, Zhiqiang; Zhiqing, Liu; Loehner, H.; Lou, X. C.; Lu, H. J.; Lu, J. G.; Lu, R. Q.; Lu, Y.; Lu, Y. P.; Luo, C. L.; Luo, M. X.; Luo, T.; Luo, X. L.; Lv, M.; Lyu, X. R.; Ma, F. C.; Ma, H. L.; Ma, L. L.; Ma, Q. M.; Ma, S.; Ma, T.; Ma, X. N.; Ma, X. Y.; E. Maas, F.; Maggiora, M.; A. Malik, Q.; Mao, Y. J.; Mao, Z. P.; Marcello, S.; G. Messchendorp, J.; Min, J.; Min, T. J.; E. Mitchell, R.; Mo, X. H.; Mo, Y. J.; C. Morales, Morales; Moriya, K.; Yu. Muchnoi, N.; Muramatsu, H.; Nefedov, Y.; Nerling, F.; B. Nikolaev, I.; Ning, Z.; Nisar, S.; Niu, S. L.; Niu, X. Y.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Patteri, P.; Pelizaeus, M.; Peng, H. P.; Peters, K.; Ping, J. L.; Ping, R. G.; Poling, R.; Pu, Y. N.; Qi, M.; Qian, S.; Qiao, C. F.; Qin, L. Q.; Qin, N.; Qin, X. S.; Qin, Y.; Qin, Z. H.; Qiu, J. F.; H. Rashid, K.; F. Redmer, C.; Ren, H. L.; Ripka, M.; Rong, G.; Ruan, X. D.; Santoro, V.; Sarantsev, A.; Savrié, M.; Schoenning, K.; Schumann, S.; Shan, W.; Shao, M.; Shen, C. P.; Shen, P. X.; Shen, X. Y.; Sheng, H. Y.; R. Shepherd, M.; Song, W. M.; Song, X. Y.; Sosio, S.; Spataro, S.; Spruck, B.; Sun, G. X.; Sun, J. F.; Sun, S. S.; Sun, Y. J.; Sun, Y. Z.; Sun, Z. J.; Sun, Z. T.; Tang, C. J.; Tang, X.; Tapan, I.; H. Thorndike, E.; Tiemens, M.; Toth, D.; Ullrich, M.; Uman, I.; S. Varner, G.; Wang, B.; Wang, B. L.; Wang, D.; Wang, D. Y.; Wang, K.; Wang, L. L.; Wang, L. S.; Wang, M.; Wang, P.; Wang, P. L.; Wang, Q. J.; Wang, S. G.; Wang, W.; Wang, X. F.; D. Wang(Yadi, Y.; Wang, Y. F.; Wang, Y. Q.; Wang, Z.; Wang, Z. G.; Wang, Z. H.; Wang, Z. Y.; Weber, T.; Wei, D. H.; Wei, J. B.; Weidenkaff, P.; Wen, S. P.; Wiedner, U.; Wolke, M.; Wu, L. H.; Wu, Z.; Xia, L. G.; Xia, Y.; Xiao, D.; Xiao, Z. J.; Xie, Y. G.; Xu, G. F.; Xu, L.; Xu, Q. J.; Xu, Q. N.; Xu, X. P.; Yan, L.; Yan, W. B.; Yan, W. C.; Yan, Y. H.; Yang, H. X.; Yang, L.; Yang, Y.; Yang, Y. X.; Ye, H.; Ye, M.; Ye, M. H.; Yin, J. H.; Yu, B. X.; Yu, C. X.; Yu, H. W.; Yu, J. S.; Yuan, C. Z.; Yuan, W. L.; Yuan, Y.; Yuncu, A.; A. Zafar, A.; Zallo, A.; Zeng, Y.; Zhang, B. X.; Zhang, B. Y.; Zhang, C.; Zhang, C. C.; Zhang, D. H.; Zhang, H. H.; Zhang, H. Y.; Zhang, J. J.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; Zhang, J. Y.; Zhang, J. Z.; Zhang, K.; Zhang, L.; Zhang, S. H.; Zhang, X. Y.; Zhang, Y.; Zhang, Y. H.; Zhang, Y. T.; Zhang, Z. H.; Zhang, Z. P.; Zhang, Z. Y.; Zhao, G.; Zhao, J. W.; Zhao, J. Y.; Zhao, J. Z.; Zhao, Lei; Zhao, Ling; Zhao, M. G.; Zhao, Q.; Zhao, Q. W.; Zhao, S. J.; Zhao, T. C.; Zhao, Y. B.; Zhao, Z. G.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, W. J.; Zheng, Y. H.; Zhong, B.; Zhou, L.; Zhou, Li; Zhou, X.; Zhou, X. K.; Zhou, X. R.; Zhou, X. Y.; Zhu, K.; Zhu, K. J.; Zhu, S.; Zhu, X. L.; Zhu, Y. C.; Zhu, Y. S.; Zhu, Z. A.; Zhuang, J.; Zou, B. S.; Zou, J. H.; BESIII Collaboration

    2015-04-01

    Using data samples collected at center-of-mass energies of √s = 4.009, 4.230, 4.260, and 4.360 GeV with the BESIII detector operating at the BEPCII collider, we perform a search for the process e+e- → γχcJ (J=0, 1, 2) and find evidence for e+e- → γχc1 and e+e- → γχc2 with statistical significances of 3.0σ and 3.4σ, respectively. The Born cross sections σB(e+e- → γχcJ), as well as their upper limits at the 90% confidence level (C.L.) are determined at each center-of-mass energy. Supported by National Key Basic Research Program of China (2015CB856700), Joint Funds of National Natural Science Foundation of China (11079008, 11179007, U1232201, U1332201, U1232107), National Natural Science Foundation of China (NSFC) (10935007, 11121092, 11125525, 11235011, 11322544, 11335008), Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program, CAS (KJCX2-YW-N29, KJCX2-YW-N45), 100 Talents Program of CAS, INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG (Collaborative Research Center CRC-1044), Istituto Nazionale di Fisica Nucleare, Italy, Ministry of Development of Turkey (DPT2006K-120470), Russian Foundation for Basic Research (14-07-91152), U. S. Department of Energy (DE-FG02-04ER41291, DE-FG02-05ER41374, DE-FG02-94ER40823, DESC0010118), U.S. National Science Foundation, University of Groningen (RuG) and Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt, WCU Program of National Research Foundation of Korea (R32-2008-000-10155-0)

  5. Measurements of the center-of-mass energies at BESIII via the di-muon process

    NASA Astrophysics Data System (ADS)

    Ablikim, M.; N. Achasov, M.; C. Ai, X.; Albayrak, O.; Albrecht, M.; J. Ambrose, D.; Amoroso, A.; An, F. F.; An, Q.; Bai, J. Z.; Baldini, Ferroli R.; Ban, Y.; Bennett, D. W.; Bennett, J. V.; Bertani, M.; Bettoni, D.; Bian, J. M.; Bianchi, F.; Boger, E.; Boyko, I.; Briere, R. A.; Cai, H.; Cai, X.; Cakir, O.; Calcaterra, A.; Cao, G. F.; Cetin, S. A.; Chang, J. F.; Chelkov, G.; Chen, G.; Chen, H. S.; Chen, H. Y.; Chen, J. C.; Chen, M. L.; Chen, S. J.; Chen, X.; Chen, X. R.; Chen, Y. B.; Cheng, H. P.; Chu, X. K.; Cibinetto, G.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; Dedovich, D.; Y. Deng, Z.; Denig, A.; Denysenko, I.; Destefanis, M.; De Mori, F.; Ding, Y.; Dong, C.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Du, S. X.; Duan, P. F.; Fan, J. Z.; Fang, J.; Fang, S. S.; Fang, X.; Fang, Y.; Fava, L.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Fioravanti, E.; Fritsch, M.; Fu, C. D.; Gao, Q.; Gao, X. L.; Gao, X. Y.; Gao, Y.; Gao, Z.; Garzia, I.; Goetzen, K.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, M. H.; Gu, Y. T.; Guan, Y. H.; Guo, A. Q.; Guo, L. B.; Guo, Y.; Guo, Y. P.; Haddadi, Z.; Hafner, A.; Han, S.; Q. Hao, X. Q.; Harris, F. A.; He, K. L.; Held, T.; Heng, Y. K.; Hou, Z. L.; Hu, C.; Hu, H. M.; Hu, J. F.; Hu, T.; Hu, Y.; Huang, G. M.; Huang, G. S.; Huang, J. S.; Huang, X. T.; Huang Y.; Hussain, T.; Ji, Q.; Ji, Q. P.; Ji, X. B.; Ji, X. L.; Jiang, L. W.; Jiang, X. S.; Jiang, X. Y.; Jiao, J. B.; Jiao, Z.; Jin, D. P.; Jin, S.; Johansson, T.; Julin, A.; Kalantar-Nayestanaki, N.; Kang, X. L.; Kang, X. S.; Kavatsyuk, M.; Ke, B. C.; Kiese, P.; Kliemt, R.; Kloss, B.; Kolcu, O. B.; Kopf, B.; Kornicer, M.; Kühn, W.; Kupsc, A.; Lange, J. S.; Lara, M.; Larin, P.; Leng, C.; Li, C.; Cheng, Li; Li, D. M.; Li, F.; Li, F. Y.; Li, G.; Li, H. B.; Li, J. C.; Li, Jin; Li, K.; Li, K.; Li, Lei; Li, P. R.; Li, T.; Li, W. D.; Li, W. G.; Li, X. L.; Li, X. M.; Li, X. N.; Li, X. Q.; Li, Z. B.; Liang, H.; Liang, Y. F.; Liang, Y. T.; Liao, G. R.; Lin, X.; Liu, B. J.; Liu, C. X.; Liu, D.; Liu, F. H.; Fang, Liu; Feng, Liu; Liu, H. B.; Liu, H. H.; Liu, H. H.; Liu, H. M.; Liu, J.; Liu, J. B.; Liu, J. P.; Liu, J. Y.; Liu, K.; Liu, K. Y.; Liu, L. D.; Liu, P. L.; Liu, Q.; Liu, S. B.; Liu, X.; Liu, Y. B.; Liu, Z. A.; Liu, Zhiqing; Loehner, H.; Lou, X. C.; Lu, H. J; Lu, J. G.; Lu, Y.; Lu, Y. P.; Luo, C. L.; Luo, M. X.; Luo, T.; Luo, X. L.; Lyu, X. R.; Ma, F. C.; Ma, H. L.; Ma, L. L.; Ma, Q. M.; Ma, T.; Ma, X. N.; Ma, X. Y.; Maas, F. E.; Maggiora, M.; Mao, Y. Y.; Mao, Z. P.; Marcello, S.; Messchendorp, J. G.; Min, J.; Mitchell, R. E.; Mo, X. H.; Mo, Y. J.; Morales Morales, C.; Moriya, K.; Muchnoi, N. Yu.; Muramatsu, H.; Nefedov, Y.; Nerling, F.; Nikolaev, I. B.; Ning, Z.; Nisar, S.; Niu, S. L.; Niu, X. Y.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Pan, Y.; Patteri, P.; Pelizaeus, M.; Peng, H. P.; Peters, K.; Pettersson, J.; Ping, J. L.; Ping, R. G.; Poling, R.; Prasad, V.; Qi, M.; Qian, S.; Qiao, C. F.; Qin, L. Q.; Qin, N.; Qin, X. S.; Qin, Z. H.; Qiu, J. F.; Rashid, K. H.; Redmer, C. F.; Ripka, M.; Rong, G.; Rosner, Ch.; Ruan, X. D.; Santoro, V.; Sarantsev, A. A.; Savrié, M.; Schoenning, B. K.; Schumann, S.; Shan, W.; Shao, M.; Shen, C. P.; Shen, P. X.; Shen, X. Y.; Sheng, H. Y.; Song, W. M.; Song, X. Y.; Sosio, S.; Spataro, S.; Sun, G. X.; Sun, J. F.; Sun, S. S.; Sun, Y. J.; Sun, Y. Z.; Sun, Z. J.; Sun, Z. T.; Tang, C. J.; Tang, X.; Tapan, I.; Thorndike, E. H.; Tiemens, M.; Ullrich, M.; Uman, I.; Varner, G. S.; Wang, B.; Wang, D.; Wang, D. Y.; Wang, K.; Wang, L. L.; Wang, L. S.; Wang, M.; Wang, P.; Wang, P. L.; Wang, S. G.; Wang, W.; Wang, W. P.; Wang, X. F.; Wang, Y. D.; Wang, Y. F.; Wang, Y. Q.; Wang, Z.; Wang, Z. G.; Wang, Z. H.; Wang, Z. Y.; Weber, T.; Wei, D. H.; Wei, J. B.; Weidenkaff, P.; Wen, S. P.; Wiedner, U.; Wolke, M.; Wu, L. H.; Wu, Z.; Xia, L.; Xia, L. G.; Xia, Y.; Xiao, D.; Xiao, H.; Xiao, Z. J.; Xie, Y. G.; Xiu, Q. L.; Xu, G. F.; Xu, L.; Xu, Q. J.; Xu, X. P.; Yan, L.; Yan, W. B.; Yan, W. C.; Yan, Y. H.; Yang, H. J.; Yang, H. X.; Yang, L.; Yang, Y.; Yang, Y. X.; Ye, M.; Ye, M. H.; Yin, J. H.; Yu, B. X.; Yu, C. X.; Yu, J. S.; Yuan, C. Z.; Yuan, W. L.; Yuan, Y.; Yuncu, A.; Zafar, A. A.; Zallo, A.; Zeng, A. Y.; Zeng, Z.; Zhang, B. X.; Zhang, B. Y.; Zhang, C.; Zhang, C. C.; Zhang, D. H.; Zhang, H. H.; Zhang, H. Y.; Zhang, J. J.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; Zhang, J. Y.; Zhang, J. Z.; Zhang, K.; Zhang, L.; Zhang, X. Y.; Zhang, Y.; Zhang, Y. N.; Zhang, Y. H.; Zhang, Y. T.; Zhang, Yu; Zhang, Z. H.; Zhang, Z. P.; Zhang, Z. Y.; Zhao, G.; Zhao, J. W.; Zhao, J. Y.; Zhao, J. Z.; Zhao, Lei; Zhao, Ling; Zhao, M. G.; Zhao, Q.; Zhao, Q. W.; Zhao, S. J.; Zhao, T. C.; Zhao, Y. B.; Zhao, Z. G.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, W. J.; Zheng, Y. H.; Zhong, B.; Zhou, L.; Zhou, X.; Zhou, X. K.; Zhou, X. R.; Zhou, X. Y.; Zhu, K.; Zhu, K. J.; Zhu, S.; , S. H.; Zhu, X. L.; Zhu, Y. C.; Zhu, Y. S.; Zhu, Z. A.; Zhuang, J.; Zotti, L.; Zou, B. S.; Zou, J. H.; BESIII Collaboration

    2016-06-01

    From 2011 to 2014, the BESIII experiment collected about 5 fb-1 data at center-of-mass energies around 4 GeV for the studies of the charmonium-like and higher excited charmonium states. By analyzing the di-muon process e+e- → γISR/FSRμ+μ-, the center-of-mass energies of the data samples are measured with a precision of 0.8 MeV. The center-of-mass energy is found to be stable for most of the time during data taking. Supported by National Key Basic Research Program of China (2015CB856700), National Natural Science Foundation of China (11125525, 11235011, 11322544, 11335008, 11425524, Y61137005C), Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program, CAS Center for Excellence in Particle Physics (CCEPP), Collaborative Innovation Center for Particles and Interactions (CICPI), Joint Large-Scale Scientific Facility Funds of NSFC and CAS (11179007, U1232201, U1332201), CAS (KJCX2-YW-N29, KJCX2-YW-N45), 100 Talents Program of CAS, National 1000 Talents Program of China, INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology, German Research Foundation DFG (Collaborative Research Center CRC-1044), Istituto Nazionale di Fisica Nucleare, Italy, Ministry of Development of Turkey (DPT2006K-120470), Russian Foundation for Basic Research (14-07-91152), Swedish Research Council, U. S. Department of Energy (DE-FG02-04ER41291, DE-FG02-05ER41374, DE-FG02-94ER40823, DESC0010118), U.S. National Science Foundation, University of Groningen (RuG) and Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt, WCU Program of National Research Foundation of Korea (R32-2008-000-10155-0).

  6. 3 MV hypervelocity dust accelerator at the Colorado Center for Lunar Dust and Atmospheric Studies

    SciTech Connect

    Shu, Anthony; Horanyi, Mihaly; Kempf, Sascha; Thomas, Evan; Collette, Andrew; Drake, Keith; Northway, Paige; Gruen, Eberhard; Mocker, Anna; Munsat, Tobin; Srama, Ralf; and others

    2012-07-15

    A hypervelocity dust accelerator for studying micrometeorite impacts has been constructed at the Colorado Center for Lunar Dust and Atmospheric Studies (CCLDAS) at the University of Colorado. Based on the Max-Planck-Instituet fuer Kernphysik (MPI-K) accelerator, this accelerator is capable of emitting single particles of a specific mass and velocity selected by the user. The accelerator consists of a 3 MV Pelletron generator with a dust source, four image charge pickup detectors, and two interchangeable target chambers: a large high-vacuum test bed and an ultra-high vacuum impact study chamber. The large test bed is a 1.2 m diameter, 1.5 m long cylindrical vacuum chamber capable of pressures as low as 10{sup -7} torr while the ultra-high vacuum chamber is a 0.75 m diameter, 1.1 m long chamber capable of pressures as low as 10{sup -10} torr. Using iron dust of up to 2 microns in diameter, final velocities have been measured up to 52 km/s. The spread of the dust particles and the effect of electrostatic focusing have been measured using a long exposure CCD and a quartz target. Furthermore, a new technique of particle selection is being developed using real time digital filtering techniques. Signals are digitized and then cross-correlated with a shaped filter, resulting in a suppressed noise floor. Improvements over the MPI-K design, which include a higher operating voltage and digital filtering for detection, increase the available parameter space of dust emitted by the accelerator. The CCLDAS dust facility is a user facility open to the scientific community to assist with instrument calibrations and experiments.

  7. Computer vision sensor for autonomous helicopter hover stabilization

    NASA Astrophysics Data System (ADS)

    Oertel, Carl-Henrik

    1997-06-01

    Sensors for synthetic vision are needed to extend the mission profiles of helicopters. A special task for various applications is the autonomous position hold of a helicopter above a ground fixed or moving target. A computer-vision based system, which is able to observe the helicopter flight state during hover and low speed, based on the detection and tracking of significant but arbitrary features, has been developed by the Institute of Flight Mechanics of DLR Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V. The approach is as follows: A CCD camera looks straight downward to the ground and produces an image of the ground view. The digitized video signal is fed into a high performance on- board computer which looks for distinctive features in the image. Any motion of the helicopter results in movements of these patterns in the camera image. By tracking the distinctive features during the succession of incoming images and by the support of inertial sensor data, it is possible to calculate all necessary helicopter state variables, which are needed for a position hold control algorithm. This information is gained from a state variable observer. That means that no additional information about the appearance of the camera view has to be known in advance to achieve autonomous helicopter hover stabilization. The hardware architecture for this image evaluation system mainly consists of several PowerPC processors which communicate with the aid of transputers and an image distribution bus. Feature tracking is performed by a dedicated 2D-correlator subsystem. The paper presents the characteristics of the computer vision sensor and demonstrates its functionality.

  8. Biomes computed from simulated climatologies

    SciTech Connect

    Claussen, M.; Esch, M.

    1994-01-01

    The biome model of Prentice et al. is used to predict global patterns of potential natural plant formations, or biomes, from climatologies simulated by ECHAM, a model used for climate simulations at the Max-Planck-Institut fuer Meteorologie. This study undertaken in order to show the advantage of this biome model in diagnosing the performance of a climate model and assessing effects of past and future climate changes predicted by a climate model. Good overall agreement is found between global patterns of biomes computed from observed and simulated data of present climate. But there are also major discrepancies indicated by a difference in biomes in Australia, in the Kalahari Desert, and in the Middle West of North America. These discrepancies can be traced back to in simulated rainfall as well as summer or winter temperatures. Global patterns of biomes computed from an ice age simulation reveal that North America, Europe, and Siberia should have been covered largely by tundra and taiga, whereas only small differences are for the tropical rain forests. A potential northeast shift of biomes is expected from a simulation with enhanced CO{sub 2} concentration according to the IPCC Scenario A. Little change is seen in the tropical rain forest and the Sahara. Since the biome model used is not capable of predicting chances in vegetation patterns due to a rapid climate change, the latter simulation to be taken as a prediction of chances in conditions favourable for the existence of certain biomes, not as a reduction of a future distribution of biomes. 15 refs., 8 figs., 2 tabs.

  9. Alternative-Fuel Effects on Contrails & Cruise Emissions (ACCESS-2) Flight Experiment

    NASA Technical Reports Server (NTRS)

    Anderson, Bruce E.

    2015-01-01

    Although the emission performance of gas-turbine engines burning renewable aviation fuels have been thoroughly documented in recent ground-based studies, there is still great uncertainty regarding how the fuels effect aircraft exhaust composition and contrail formation at cruise altitudes. To fill this information gap, the NASA Aeronautics Research Mission Directorate sponsored the ACCESS flight series to make detailed measurements of trace gases, aerosols and ice particles in the near-field behind the NASA DC-8 aircraft as it burned either standard petroleum-based fuel of varying sulfur content or a 50:50 blend of standard fuel and a hydro-treated esters and fatty acid (HEFA) jet fuel produced from camelina plant oil. ACCESS 1, conducted in spring 2013 near Palmdale CA, focused on refining flight plans and sampling techniques and used the instrumented NASA Langley HU-25 aircraft to document DC-8 emissions and contrails on five separate flights of approx.2 hour duration. ACCESS 2, conducted from Palmdale in May 2014, engaged partners from the Deutsches Zentrum fuer Luft- und Raumfahrt (DLR) and National Research Council-Canada to provide additional scientific expertise and sampling aircraft (Falcon 20 and CT-133, respectively) with more extensive trace gas, particle, or air motion measurement capability. Eight, muliti-aircraft research flights of 2 to 4 hour duration were conducted to document the emissions and contrail properties of the DC-8 as it 1) burned low sulfur Jet A, high sulfur Jet A or low sulfur Jet A/HEFA blend, 2) flew at altitudes between 6 and 11 km, and 3) operated its engines at three different fuel flow rates. This presentation further describes the ACCESS flight experiments, examines fuel type and thrust setting impacts on engine emissions, and compares cruise-altitude observations with similar data acquired in ground tests.

  10. ROSAT Discovers Unique, Distant Cluster of Galaxies

    NASA Astrophysics Data System (ADS)

    1995-06-01

    measured (by obtaining spectra of the arcs and measuring their redshift). The masses of galaxy clusters are important for the determination, for instance of the mean density and distribution of matter in the universe. This is because these clusters are the most massive, clearly defined objects known and as such trace these parameters in the universe on very large scales. Another possibility to derive the cluster mass is offered by X-ray observations, because the distribution of the hot, X-ray emitting gas traces the gravitational field of the cluster. Recently, in some clusters there has been a discrepancy between the mass determined in this way and that found from gravitational lensing effects. The team of astronomers now hopes that follow-up X-ray observations of RXJ1347.5-1145 will help to solve this puzzle. Moreover, the combination of extremely high X-ray brightness and the possibility to perform a rather accurate mass determination by the gravitational lensing effect makes this particular cluster a truly unique object. In view of the exceptional X-ray brightness, a very high mass is expected. The exact determination will be possible, as soon as spectra have been obtained of the two arcs. Contrary to what is the case in other clusters, this will not be so difficult, due to their unusual brightness and their ideal geometrical configuration. [1] This is a joint Press Release of ESO and the Max-Planck-Society. It is accompanied by a B/W photo. [2] The investigation described in this Press Release is the subject of a Letter to the Editor which will soon appear in the European journal Astronomy & Astrophysics, with the following authors: Sabine Schindler (Max-Planck-Institut fuer Extraterrestrische Physik and Max-Planck-Institut fuer Astrophysik, Garching, Germany), Hans Boehringer, Doris M. Neumann and Ulrich G. Briel (Max-Planck-Institut fuer Extraterrestrische Physik, Garching, Germany), Luigi Guzzo (Osservatorio Astronomico di Brera, Merate, Italy), Guido Chincarini

  11. A Mathematical Physicist's Approach to Virology

    NASA Astrophysics Data System (ADS)

    Twarock, Reidun

    2012-02-01

    The following talk has been given in a special session dedicated to Professor Heinz-Dietrich Doebner at QTS in Prague in August 2011 on the occasion of his 80th birthday. It documents my journey from being a PhD student in Mathematical Physics at the Arnold Sommerfeld Institute in Clausthal under his supervision, to becoming a Professor of Mathematical Biology at the University of York in the UK. I am currently heading an interdisciplinary research group of eight PDRAs and PhDs, focussed on investigating the structures of viruses from a symmetry perspective and unravelling the implications of virus structure on how viruses form and infect their hosts. A central element in my research is my fascination with the development and application of symmetry techniques, which stems from my time in Clausthal when working with Professor Doebner and colleagues. I would like to thank Professor Doebner for these important formative years in Clausthal. Der folgende Vortrag war mein Beitrag zu einer Festsitzung fuer Herrn Professor Heinz-Dietrich Doebner auf der Tagung QTS im August 2011 anläßlich seines achzigsten Geburtstags. Dieser Beitrag dokumentiert, wie sich meine Forschungen aus der Zeit als Doktorandin von Herrn Professor Doebner in Mathematischer Physik am Arnold Sommerfeld Institut in Clausthal weiterentwickelt haben, und zu meiner Professur in Mathematischer Biologie an der Universität York geführt haben. Ich leite dort zur Zeit eine interdisziplinäre Forschungsgruppe von acht Postdocs und Doktoranden, die sich mit der Entwicklung und Anwendung von Symmetrie-Techniken in der Virologie beschäftigt, und insbesondere untersucht, wie sich die Symmetrie-Eigenschaften von Viren auf deren Entstehung und Funktionsweise auswirken. Eine wichtige Vorraussetzung für dieses Forschungsprogramm ist meine Faszination für die Modellierung von Symmetrie-Eigenschaften, die ich während meiner Zusammenarbeit mit Herrn Professor Doebner und Kollegen in Clausthal entwickelt habe

  12. Progress in the GEOROC Database - Fast and Simple Access to Analytical Data by Precompilation

    NASA Astrophysics Data System (ADS)

    Sarbas, B.

    2001-12-01

    The geochemical database GEOROC of the Max-Planck-Institut fuer Chemie in Mainz http://georoc.mpch-mainz.gwdg.de includes the published chemical analyses of samples from Oceanic Islands, Convergent Margins, and Large Igneous Provinces. As a whole, the database comprises about 77,000 whole-rock, 35,000 mineral and 3,000 inclusion analyses published in about 2,800 papers (status Sept. 2001). For the individual tectonic settings, the following numbers of analyses are available: Oceanic Islands - 25,000 whole rocks, 14,000 minerals, 1,500 inclusions Convergent Margins - 20,000 whole rocks, 9,000 minerals, 500 inclusions Large Igneous Provinces - 32,000 whole rocks, 12,000 minerals, 1500 inclusions. Data entry is complete for samples from Oceanic Islands and Oceanic Large Igneous Provinces. Newly published papers are added regularly. Among the Continental Flood Basalts, which comprise 25,000 whole-rock and 12,000 mineral analyses, large and nearly complete datasets are available for the Columbia River, Deccan, Karoo, Paraná, and Siberian Plateau Basalts. Data for Convergent Margins have been added to the database most recently. The database includes, for instance, for the Honshu Arc 3,300, for the Izu-Bonin Arc 1,550, for the Mariana Arc 1,800, for the Kurile Arc 1,400, for the Aleutian Arc 1,500, for the Cascades 500, for the Andes 1,600, for the Lesser Antilles 1,100, and for the Tonga Arc 1,400 whole-rock analyses. For many localities, huge numbers of analyses (more than 2000) are included in the GEOROC database. The selection and compilation of such substantial datasets proved to be difficult and time-consuming when using the web interface of the database. Therefore, we are building precompiled datasets that include all published whole-rock analyses and a fixed set of location and sample metadata for the respective locations. These precompiled datasets are stored as Excel files and can be downloaded easily and rapidly. If multiple element analyses exist for a

  13. Air quality remote sensing over alpine regions with METEOSAT SEVIRI

    NASA Astrophysics Data System (ADS)

    Emili, E.; Popp, C.; Petitta, M.; Riffler, M.; Wunderle, S.

    2009-04-01

    It is well demonstrated that small aerosol particles or particulate matter (PM10 and PM2.5) affect air quality and can have severe effects on human's health. Hence, it is of great interest for public institutions to have an efficient PM monitoring network. In the last decades this data has been provided from ground-based instruments. Moreover, due to the fast development of space-borne remote sensing instruments, we can now be able to take advantage of air pollution measurements from space, which bears the potential to fill up the gap of spatial coverage from ground-based networks. This also improves the capability to assess air pollutants transport properties together with a better implementation in forecasting data assimilation procedures. In this study we examine the possibility of using data from the Spinning Enhanced Visible and Infrared Imager (SEVIRI), on-board of the geostationary Meteosat Second Generation (MSG) platform, to provide PM concentrations values over Switzerland. SEVIRI's high temporal resolution (15 minutes) could be very useful in investigating the daily behaviour of air pollutants and therefore be a good complement to measurements from polar orbiting sensors (e.g. MODIS). Switzerland is of particular interest because of its mountainous orography that hampers pollutants dispersion. Further, major transalpine connection routes, often characterised by high traffic load, act as a significant air pollution source. The south of Switzerland is also occasionally influenced by pollutants transported from the highly industrialised Po Valley in northern Italy. We investigate the existence of a linear relation between the SEVIRI retrieved AOD (Aerosol Optical Depth) and the PM concentration obtained from the ground-based air quality network NABEL (Nationales Beobachtungsnetz fuer Luftfremdstoffe). The temporal trend of this two quantities shows a significant relationship over various locations. The correlation coefficient is in some cases higher than 0

  14. Space Radar Image of Manaus, Brazil

    NASA Technical Reports Server (NTRS)

    1999-01-01

    companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  15. Space Radar Image of Namib Desert in Southern Namib

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This is a C-band, VV polarization radar image of the Namib desert in southern Namibia, near the coast of South West Africa. The image is centered at about 25 degrees South latitude, 15.5 degrees East longitude. This image was one of the first acquired by the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) when it was taken on orbit 4 from the shuttle Endeavour on April 9, 1994. The area shown is approximately 78 kilometers by 20 kilometers. The dominant features in the image are complex sand dune patterns formed by the prevailing winds in this part of the Namib desert. The Namib desert is an extremely dry area formed largely because of the influence of the cold Benguela ocean current that flows northward along the coast of Namibia. The bright areas at the bottom of the image are exposed outcrops of Precambrian rocks. This extremely barren area is a region rich in diamonds that through the centuries have washed down from the mountains. The town of Luderitz is located just to the south of the area shown. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Aumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia

  16. Space Radar Image of Mammoth, California in 3-D

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This is a three-dimensional perspective of Mammoth Mountain, California. This view was constructed by overlaying a Spaceborne Imaging Radar-C (SIR-C) radar image on a U.S. Geological Survey digital elevation map. Vertical exaggeration is 1.87 times. The image is centered at 37.6 degrees north, 119.0 degrees west. It was acquired from the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) onboard space shuttle Endeavour on its 67th orbit on April 13, 1994. In this color representation, red is C-band HV-polarization, green is C-band VV-polarization and blue is the ratio of C-band VV to C-band HV. Blue areas are smooth, and yellow areas are rock out-crops with varying amounts of snow and vegetation. Crowley Lake is in the foreground, and Highway 395 crosses in the middle of the image. Mammoth Mountain is shown in the upper right. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  17. X-SAR as high-performance interferometric SAR

    NASA Astrophysics Data System (ADS)

    Werner, Marian U.; Schandl, Josef

    1995-11-01

    Space Agency (DARA) and the Italian Space Agency (ASI), with the Deutsche Forshcungsanstalt fuer Luft- und Raumfahrt e.V. (DLR), as the major partner in science, operations, and data processing.

  18. Space Radar Image of Niya ruins, Taklamakan desert

    NASA Technical Reports Server (NTRS)

    1999-01-01

    human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtange-legenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstaltfuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  19. Comparison of Biological Effectiveness of Carbon-Ion Beams in Japan and Germany

    SciTech Connect

    Uzawa, Akiko; Ando, Koichi Koike, Sachiko; Furusawa, Yoshiya; Matsumoto, Yoshitaka; Takai, Nobuhiko; Hirayama, Ryoichi; Watanabe, Masahiko; Scholz, Michael; Elsaesser, Thilo; Peschke, Peter

    2009-04-01

    Purpose: To compare the biological effectiveness of 290 MeV/amu carbon-ion beams in Chiba, Japan and in Darmstadt, Germany, given that different methods for beam delivery are used for each. Methods and Materials: Murine small intestine and human salivary gland tumor (HSG) cells exponentially growing in vitro were irradiated with 6-cm width of spread-out Bragg peaks (SOBPs) adjusted to achieve nearly identical beam depth-dose profiles at the Heavy-Ion Medical Accelerator in Chiba, and the SchwerIonen Synchrotron in Darmstadt. Cell kill efficiencies of carbon ions were measured by colony formation for HSG cells and jejunum crypts survival in mice. Cobalt-60 {gamma} rays were used as the reference radiation. Isoeffective doses at given survivals were used for relative biological effectiveness (RBE) calculations and interinstitutional comparisons. Results: Isoeffective D{sub 10} doses (mean {+-} standard deviation) of HSG cells ranged from 2.37 {+-} 0.14 Gy to 3.47 {+-} 0.19 Gy for Chiba and from 2.31 {+-} 0.11 Gy to 3.66 {+-} 0.17 Gy for Darmstadt. Isoeffective D{sub 10} doses of gut crypts after single doses ranged from 8.25 {+-} 0.17 Gy to 10.32 {+-} 0.14 Gy for Chiba and from 8.27 {+-} 0.10 Gy to 10.27 {+-} 0.27 Gy for Darmstadt, whereas isoeffective D{sub 30} doses after three fractionated doses were 9.89 {+-} 0.17 Gy through 13.70 {+-} 0.54 Gy and 10.14 {+-} 0.20 Gy through 13.30 {+-} 0.41 Gy for Chiba and Darmstadt, respectively. Overall difference of RBE between the two facilities was 0-5% or 3-7% for gut crypt survival or HSG cell kill, respectively. Conclusion: The carbon-ion beams at the National Institute of Radiological Sciences in Chiba, Japan and the Gesellschaft fuer Schwerionenforschung in Darmstadt, Germany are biologically identical after single and daily fractionated irradiation.

  20. Color Image of Death Valley, California from SIR-C

    NASA Technical Reports Server (NTRS)

    1999-01-01

    studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  1. GEOROC and GeoReM Databases - Linking Chemical Data and Data Quality

    NASA Astrophysics Data System (ADS)

    Sarbas, B.; Jochum, K. P.; Nohl, U.

    2007-12-01

    Since its introduction in 1999, the geochemical database GEOROC (Geochemistry of Rocks of the Oceans and Continents, http://georoc.mpch-mainz.gwdg.de) of the Max-Planck-Institut fuer Chemie in Mainz established itself as a major online resource available to the scientific community. GEOROC provides geochemical data published for volcanic whole rocks, glasses, minerals and inclusions from ocean islands, large igneous provinces, convergent margins, Archean greenstone belts, rift and intraplate volcanic regions. The database now provides about 300,000 analyses published in about 6,800 papers (status: 07/2007). The web interface of GEOROC allows the selection of samples by bibliographic, tectonic, geographic, petrological as well as chemical criteria. As part of the bibliographic query, the search for the GEOROC Reference Number permits an easier reproduction of published data plots created with the help of the database. A new query based on age information will be added in the near future. The geochemical database GeoReM (Geological and Environmental Reference Materials, http://georem.mpch- mainz.gwdg.de/) for reference materials and isotopic standards includes reference samples from rock powders, glasses, minerals, isotopic standards, river water, and seawater. GeoReM is a relational database with a structure compatible to that of GEOROC and contains published analytical and compilation data (major and trace element concentrations, radiogenic and stable isotope ratios), important metadata about the analytical values, such as uncertainty, uncertainty type, method and laboratory. Sample information and references are also included. Five different queries are now possible: Samples or materials, GeoReM preferred values, chemical criteria, bibliography, and methods and institutions. GeoReM contains more than 1500 geological reference materials and 14000 analyses (status: 07/2007). References available in both databases are linked to each other. It is now possible to get

  2. Determination of the number of J/ψ events with inclusive J/ψ decays

    NASA Astrophysics Data System (ADS)

    Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; An, F. F.; An, Q.; Bai, J. Z.; Baldini Ferroli, R.; Ban, Y.; Bennett, D. W.; Bennett, J. V.; Bertani, M.; Bettoni, D.; Bian, J. M.; Bianchi, F.; Boger, E.; Boyko, I.; Briere, R. A.; Cai, H.; Cai, X.; Cakir, O.; Calcaterra, A.; Cao, G. F.; Cetin, S. A.; Chang, J. F.; Chelkov, G.; Chen, G.; Chen, H. S.; Chen, H. Y.; Chen, J. C.; Chen, M. L.; Chen, S. J.; Chen, X.; Chen, X. R.; Chen, Y. B.; Cheng, H. P.; Chu, X. K.; Cibinetto, G.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; Dedovich, D.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; De Mori, F.; Ding, Y.; Dong, C.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Dou, Z. L.; Du, S. X.; Duan, P. F.; Fan, J. Z.; Fang, J.; Fang, S. S.; Fang, X.; Fang, Y.; Farinelli, R.; Fava, L.; Fedorov, O.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Fioravanti, E.; Fritsch, M.; Fu, C. D.; Gao, Q.; Gao, X. L.; Gao, X. Y.; Gao, Y.; Gao, Z.; Garzia, I.; Goetzen, K.; Gong, L.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, M. H.; Gu, Y. T.; Guan, Y. H.; Guo, A. Q.; Guo, L. B.; Guo, Y.; Guo, Y. P.; Haddadi, Z.; Hafner, A.; Han, S.; Hao, X. Q.; Harris, F. A.; He, K. L.; Held, T.; Heng, Y. K.; Hou, Z. L.; Hu, C.; Hu, H. M.; Hu, J. F.; Hu, T.; Hu, Y.; Huang, G. S.; Huang, J. S.; Huang, X. T.; Huang, Y.; Hussain, T.; Ji, Q.; Ji, Q. P.; Ji, X. B.; Ji, X. L.; Jiang, L. W.; Jiang, X. S.; Jiang, X. Y.; Jiao, J. B.; Jiao, Z.; Jin, D. P.; Jin, S.; Johansson, T.; Julin, A.; Kalantar-Nayestanaki, N.; Kang, X. L.; Kang, X. S.; Kavatsyuk, M.; Ke, B. C.; Kiese, P.; Kliemt, R.; Kloss, B.; Kolcu, O. B.; Kopf, B.; Kornicer, M.; Kupsc, A.; Kühn, W.; Lange, J. S.; Lara, M.; Larin, P.; Leng, C.; Li, C.; Li, Cheng; Li, D. M.; Li, F.; Li, F. Y.; Li, G.; Li, H. B.; Li, J. C.; Li, Jin; Li, K.; Li, K.; Li, Lei; Li, P. R.; Li, Q. Y.; Li, T.; Li, W. D.; Li, W. G.; Li, X. L.; Li, X. N.; Li, X. Q.; Li, Z. B.; Liang, H.; Liang, Y. F.; Liang, Y. T.; Liao, G. R.; Lin, D. X.; Liu, B. J.; Liu, C. X.; Liu, D.; Liu, F. H.; Liu, Fang; Liu, Feng; Liu, H. B.; Liu, H. H.; Liu, H. H.; Liu, H. M.; Liu, J.; Liu, J. B.; Liu, J. P.; Liu, J. Y.; Liu, K.; Liu, K. Y.; Liu, L. D.; Liu, P. L.; Liu, Q.; Liu, S. B.; Liu, X.; Liu, Y. B.; Liu, Z. A.; Liu, Zhiqing; Loehner, H.; Lou, X. C.; Lu, H. J.; Lu, J. G.; Lu, Y.; Lu, Y. P.; Luo, C. L.; Luo, M. X.; Luo, T.; Luo, X. L.; Lyu, X. R.; Ma, F. C.; Ma, H. L.; Ma, L. L.; Ma, Q. M.; Ma, T.; Ma, X. N.; Ma, X. Y.; Ma, Y. M.; Maas, F. E.; Maggiora, M.; Mao, Y. J.; Mao, Z. P.; Marcello, S.; Messchendorp, J. G.; Min, J.; Min, T. J.; Mitchell, R. E.; Mo, X. H.; Mo, Y. J.; Morales Morales, C.; Muchnoi, N. Yu.; Muramatsu, H.; Nefedov, Y.; Nerling, F.; Nikolaev, I. B.; Ning, Z.; Nisar, S.; Niu, S. L.; Niu, X. Y.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Pan, Y.; Patteri, P.; Pelizaeus, M.; Peng, H. P.; Peters, K.; Pettersson, J.; Ping, J. L.; Ping, R. G.; Poling, R.; Prasad, V.; Qi, H. R.; Qi, M.; Qian, S.; Qiao, C. F.; Qin, L. Q.; Qin, N.; Qin, X. S.; Qin, Z. H.; Qiu, J. F.; Rashid, K. H.; Redmer, C. F.; Ripka, M.; Rong, G.; Rosner, Ch.; Ruan, X. D.; Santoro, V.; Sarantsev, A.; Savrié, M.; Schoenning, K.; Schumann, S.; Shan, W.; Shao, M.; Shen, C. P.; Shen, P. X.; Shen, X. Y.; Sheng, H. Y.; Song, W. M.; Song, X. Y.; Sosio, S.; Spataro, S.; Sun, G. X.; Sun, J. F.; Sun, S. S.; Sun, Y. J.; Sun, Y. Z.; Sun, Z. J.; Sun, Z. T.; Tang, C. J.; Tang, X.; Tapan, I.; Thorndike, E. H.; Tiemens, M.; Ullrich, M.; Uman, I.; Varner, G. S.; Wang, B.; Wang, B. L.; Wang, D.; Wang, D. Y.; Wang, K.; Wang, L. L.; Wang, L. S.; Wang, M.; Wang, P.; Wang, P. L.; Wang, W.; Wang, W. P.; Wang, X. F.; Wang, Y. D.; Wang, Y. F.; Wang, Y. Q.; Wang, Z.; Wang, Z. G.; Wang, Z. H.; Wang, Z. Y.; Weber, T.; Wei, D. H.; Weidenkaff, P.; Wen, S. P.; Wiedner, U.; Wolke, M.; Wu, L. H.; Wu, Z.; Xia, L.; Xia, L. G.; Xia, Y.; Xiao, D.; Xiao, H.; Xiao, Z. J.; Xie, Y. G.; Xiu, Q. L.; Xu, G. F.; Xu, L.; Xu, Q. J.; Xu, Q. N.; Xu, X. P.; Yan, L.; Yan, W. B.; Yan, W. C.; Yan, Y. H.; Yang, H. J.; Yang, H. X.; Yang, L.; Yang, Y. X.; Ye, M.; Ye, M. H.; Yin, J. H.; Yu, B. X.; Yu, C. X.; Yu, J. S.; Yuan, C. Z.; Yuan, W. L.; Yuan, Y.; Yuncu, A.; Zafar, A. A.; Zallo, A.; Zeng, Y.; Zeng, Z.; Zhang, B. X.; Zhang, B. Y.; Zhang, C.; Zhang, C. C.; Zhang, D. H.; Zhang, H. H.; Zhang, H. Y.; Zhang, J. J.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; Zhang, J. Y.; Zhang, J. Z.; Zhang, K.; Zhang, L.; Zhang, X. Y.; Zhang, Y.; Zhang, Y. H.; Zhang, Y. N.; Zhang, Y. T.; Zhang, Yu; Zhang, Z. H.; Zhang, Z. P.; Zhang, Z. Y.; Zhao, G.; Zhao, J. W.; Zhao, J. Y.; Zhao, J. Z.; Zhao, Lei; Zhao, Ling; Zhao, M. G.; Zhao, Q.; Zhao, Q. W.; Zhao, S. J.; Zhao, T. C.; Zhao, Y. B.; Zhao, Z. G.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, W. J.; Zheng, Y. H.; Zhong, B.; Zhou, L.; Zhou, X.; Zhou, X. K.; Zhou, X. R.; Zhou, X. Y.; Zhu, K.; Zhu, K. J.; Zhu, S.; Zhu, S. H.; Zhu, X. L.; Zhu, Y. C.; Zhu, Y. S.; Zhu, Z. A.; Zhuang, J.; Zotti, L.; Zou, B. S.; Zou, J. H.; BESIII Collaboration

    2017-01-01

    A measurement of the number of J/ψ events collected with the BESIII detector in 2009 and 2012 is performed using inclusive decays of the J/ψ. The number of J/ψ events taken in 2009 is recalculated to be (223.7 ± 1.4) × 106, which is in good agreement with the previous measurement, but with significantly improved precision due to improvements in the BESIII software. The number of J/ψ events taken in 2012 is determined to be (1086.9 ± 6.0) × 106. In total, the number of J/ψ events collected with the BESIII detector is measured to be (1310.6 ± 7.0) × 106, where the uncertainty is dominated by systematic effects and the statistical uncertainty is negligible. Supported by National Key Basic Research Program of China (2015CB856700), National Natural Science Foundation of China (NSFC) (10805053, 11125525, 11175188, 11235011, 11322544, 11335008, 11425524), Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program, the CAS Center for Excellence in Particle Physics (CCEPP), Collaborative Innovation Center for Particles and Interactions (CICPI), Joint Large-Scale Scientific Facility Funds of NSFC and CAS (11179007, U1232201, U1232107, U1332201), CAS (KJCX2-YW-N29, KJCX2-YW-N45), 100 Talents Program of CAS, INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology, German Research Foundation DFG (Collaborative Research Center CRC-1044), Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey (DPT2006K-120470), Russian Foundation for Basic Research (14-07-91152), U. S. Department of Energy (DE-FG02-04ER41291, DE-FG02-05ER41374, DE-FG02-94ER40823, DESC0010118), U.S. National Science Foundation, University of Groningen (RuG) and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt; WCU Program of National Research Foundation of Korea (R32-2008-000-10155-0)

  3. Radar Image of Galapagos Island

    NASA Technical Reports Server (NTRS)

    1994-01-01

    which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  4. Space Radar Image Isla Isabela in 3-D

    NASA Technical Reports Server (NTRS)

    1999-01-01

    , complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  5. A 2 MV Van de Graaff accelerator as a tool for planetary and impact physics research

    SciTech Connect

    Mocker, Anna; Bugiel, Sebastian; Srama, Ralf; Auer, Siegfried; Baust, Guenter; Matt, Guenter; Otto, Katharina; Colette, Andrew; Drake, Keith; Kempf, Sascha; Munsat, Tobin; Shu, Anthony; Sternovsky, Zoltan; Fiege, Katherina; Postberg, Frank; Gruen, Eberhard; Heckmann, Frieder; Helfert, Stefan; Hillier, Jonathan; Mellert, Tobias; and others

    2011-09-15

    Investigating the dynamical and physical properties of cosmic dust can reveal a great deal of information about both the dust and its many sources. Over recent years, several spacecraft (e.g., Cassini, Stardust, Galileo, and Ulysses) have successfully characterised interstellar, interplanetary, and circumplanetary dust using a variety of techniques, including in situ analyses and sample return. Charge, mass, and velocity measurements of the dust are performed either directly (induced charge signals) or indirectly (mass and velocity from impact ionisation signals or crater morphology) and constrain the dynamical parameters of the dust grains. Dust compositional information may be obtained via either time-of-flight mass spectrometry of the impact plasma or direct sample return. The accurate and reliable interpretation of collected spacecraft data requires a comprehensive programme of terrestrial instrument calibration. This process involves accelerating suitable solar system analogue dust particles to hypervelocity speeds in the laboratory, an activity performed at the Max Planck Institut fuer Kernphysik in Heidelberg, Germany. Here, a 2 MV Van de Graaff accelerator electrostatically accelerates charged micron and submicron-sized dust particles to speeds up to 80 km s{sup -1}. Recent advances in dust production and processing have allowed solar system analogue dust particles (silicates and other minerals) to be coated with a thin conductive shell, enabling them to be charged and accelerated. Refinements and upgrades to the beam line instrumentation and electronics now allow for the reliable selection of particles at velocities of 1-80 km s{sup -1} and with diameters of between 0.05 {mu}m and 5 {mu}m. This ability to select particles for subsequent impact studies based on their charges, masses, or velocities is provided by a particle selection unit (PSU). The PSU contains a field programmable gate array, capable of monitoring in real time the particles' speeds and

  6. Characterization of radioactive wastes with respect to harmful materials

    SciTech Connect

    Kugel, Karin; Steyer, Stefan; Brennecke, Peter; Gruendler, Detlef; Boetsch, Wilma; Haider, Claudia

    2013-07-01

    In addendum 4 to the license of the German KONRAD repository, which considers mainly radiological aspects, a water law permit was issued in order to prevent the pollution of the near-surface groundwater. The water law permit stipulates limitations for 10 radionuclides and 2 groups of radionuclides as well as mass limitations for 94 substances and materials relevant for water protection issues. Two collateral clauses, i.e. additional requirements imposed by the licensing authority, include demands on the monitoring, registering and balancing of non-radioactive harmful substances and materials /1/. In order to fulfill the requirements of the water law permit the German Federal Office for Radiation Protection (BfS) being the operator of the KONRAD repository has developed a concept, which ensures the compliance with all requirements of the water law permit and which provides standardized easy manageable guidance for the waste producers to describe their wastes. On 15 March 2011 the competent water authority, the 'Niedersaechsischer Landesbetrieb fuer Wasserwirtschaft, Kuesten- und Naturschutz' (NLWKN) issued the approval for this concept. Being the most essential part of this concept the procedural method and the developed description of nonradioactive waste package constituents by use of standardized lists of materials and containers is addressed and presented in this paper. The waste producer has to describe his waste package in a standardized way on the base of the lists of materials and containers. For each material in the list a comprehensive description is given comprising the composition, scope of application, quality control measures, thresholds and other data. Each entry in the list has to be approved by NLWKN. The scope of the lists is defined by the waste producers' needs. Using some particular materials as examples, the approval procedure for including materials in the list is described. The procedure of describing the material composition has to be

  7. Space Radar Image of Mammoth Mountain, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    cover and alpine glaciers are critical to the radiation and water balances. SIR-C/X-SAR is a powerful tool because it is sensitive to most snowpack conditions and is less influenced by weather conditions than other remote sensing instruments, such as Landsat. In parallel with the operational SIR-C data processing, an experimental effort is being conducted to test SAR data processing using the Jet Propulsion Laboratory's massively parallel supercomputing facility, centered around the Cray Research T3D. These experiments will assess the abilities of large supercomputers to produce high throughput SAR processing in preparation for upcoming data-intensive SAR missions. The images released here were produced as part of this experimental effort. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  8. Space Radar Image of San Rafael Glacier, Chile

    NASA Technical Reports Server (NTRS)

    1994-01-01

    means. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) are part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm), and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes that are caused by nature and those changes that are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  9. Space Radar Image of Mount Pinatubo Volcano, Philippines

    NASA Technical Reports Server (NTRS)

    1994-01-01

    radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  10. Space Radar Image of Mt. Rainer, Washington

    NASA Technical Reports Server (NTRS)

    1994-01-01

    White River, and the river leaving the mountain at the bottom right of the image (south) is the Nisqually River, which flows out of the Nisqually glacier on the mountain. The river leaving to the left of the mountain is the Carbon River, leading west and north toward heavily populated regions near Tacoma. The dark patch at the top right of the image is Bumping Lake. Other dark areas seen to the right of ridges throughout the image are radar shadow zones. Radar images can be used to study the volcanic structure and the surrounding regions with linear rock boundaries and faults. In addition, the recovery of forested lands from natural disasters and the success of reforestation programs can also be monitored. Ultimately this data may be used to study the advance and retreat of glaciers and other forces of global change. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: the L-band (24 cm), the C-band (6 cm) and the X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations and data processing of X-SAR.

  11. Space Radar Image of Yellowstone Park, Wyoming

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  12. Space Radar Image of Bahia

    NASA Technical Reports Server (NTRS)

    1994-01-01

    . The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI) with the Deutsche Forschungsanstalt fuer luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  13. Space Radar Image of Kilauea, Hawaii in 3-D

    NASA Technical Reports Server (NTRS)

    1999-01-01

    companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrte.v. (DLR), the major partner in science, operations and data processing of X-SAR.

  14. Space Radar Image of Prince Albert, Canada, seasonal

    NASA Technical Reports Server (NTRS)

    1994-01-01

    -C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  15. Space Radar Image of Weddell Sea, Antarctica

    NASA Technical Reports Server (NTRS)

    1994-01-01

    . Oceanographers believe this process forms most of the oceans' deep water. Sea ice covering all of the southern oceans, including the Weddell Sea, typically reaches its most northerly extent in about September. As periods of daylight become gradually longer in the Southern Hemisphere, ice formation stops and the ice edge retreats southward. By February, most of the sea ice surrounding Antarctica disappears. Imaging radar is extremely useful for studying the polar regions because of the long periods of darkness and extensive cloud cover. The multiple frequencies of the SIR-C/X-SAR instruments allow further study into ways of improving the separation of the various thickness ranges of sea ice, which are vital to understanding the heat balance in the ice, ocean and atmospheric system. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  16. Roter Kamm Impact Crater in Namibia

    NASA Technical Reports Server (NTRS)

    1995-01-01

    the surface of the Earth help geologists understand the role of the impact process in the Earth's evolution, including effects on the atmosphere and on biological evolution.

    Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  17. Space Radar Image of Prince Albert, Canada

    NASA Technical Reports Server (NTRS)

    1999-01-01

    -greenish areas are young jack pine trees, 3 to 5 meters (10 to 16 feet) in height and 11 to 16 years old. The green areas are due to the relative high intensity of the HV channel which is strongly correlated with the amount of biomass. L-band HV channel shows the biomass variations over the entire region. Most of the green areas, when compared to the forest cover maps are identified as black spruce trees. The dark blue and dark purple colors show recently harvested or regrowth areas respectively. SIR-C/X-SAR is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  18. To Boldly Go: America's Next Era in Space. The Plasma Universe

    NASA Technical Reports Server (NTRS)

    2004-01-01

    Dr. France Cordova, NASA's Chief Scientist, chaired this, the eighth seminar in the Administrator's Seminar Series. She introduced the NASA Administrator, Daniel S. Goldin, who, in turn, introduced the subject of plasma. Plasma, an ionized gas, is a function of temperature and density. We ve learned that, at Jupiter, the radiation is dense. But, Goldin asked, what else do we know? Dr. Cordova then introduced Dr. James Van Allen, for whom the Van Allen radiation belt was named. Dr. Van Allen, a member of the University of Iowa faculty, discussed the growing interest in practical applications of space physics, including radiation fields and particles, plasmas and ionospheres. He listed a hierarchy of magnetic fields, beginning at the top, as pulsars, the Sun, planets, interplanetary medium, and interstellar medium. He pointed out that we have investigated eight of the nine known planets,. He listed three basic energy sources as 1) kinetic energy from flowing plasma such as constitutional solar wind or interstellar wind; 2) rotational energy of the planet, and 3) orbital energy of satellites. He believes there are seven sources of energetic particles and five potential places where particles may go. The next speaker, Dr. Ian Axford of New Zealand, has been associated with the Max Planck Institut fuer Aeronomie and plasma physics. He has studied solar and galactic winds and clusters of galaxies of which there are several thousand. He believes that the solar wind temperature is in the millions of degrees. The final speaker was Dr. Roger Blanford of the California Institute of Technology. He classified extreme plasmas as lab plasmas and cosmic plasmas. Cosmic plasmas are from supernovae remnants. These have supplied us with heavy elements and may come via a shock front of 10(sup 15) electron volts. To understand the physics of plasma, one must learn about x-rays, the maximum energy of acceleration by supernova remnants, particle acceleration and composition of cosmic

  19. Space Radar Image of Oetzal, Austria

    NASA Technical Reports Server (NTRS)

    1999-01-01

    microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  20. SPace Radar Image of Mt. Pinatubo, Philippines

    NASA Technical Reports Server (NTRS)

    1999-01-01

    the next 10 to 15 years. Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  1. Space Radar Image of Death Valley, California

    NASA Technical Reports Server (NTRS)

    1999-01-01

    also one of the primary calibration sites for SIR-C/X-SAR. The bright dots near the center of the image are corner reflectors that have been set-up to calibrate the radar as the shuttle passes overhead. Thirty triangular-shaped reflectors (they look like aluminum pyramids) have been deployed by the calibration team from JPL over a 40- by 40-kilometer (25- by 25-mile) area in and around Death Valley. The calibration team will also deploy transponders (electronic reflectors) and receivers to measure the radar signals from SIR-C/X-SAR on the ground. SIR-C/X-SAR is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  2. Space Radar Image of Kilauea, Hawaii

    NASA Technical Reports Server (NTRS)

    1999-01-01

    community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  3. Space Radar Image of Mammoth, California

    NASA Technical Reports Server (NTRS)

    1999-01-01

    environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI) with the Deutsche Forschungsanstalt fur Luft und Raumfahrt e.v. (DLR), the major partner in science, operation and data processing of X-SAR.

  4. ESA takes part in Earth observation and space science experiments on board the Space Shuttle

    NASA Astrophysics Data System (ADS)

    1993-03-01

    interesting phenomena show up. The third European instrument, called MAS (Millimeter Wave Atmospheric Sounder) will be measuring the absorption spectra of water vapour and trace gases in the upper atmosphere. The measurement programme includes most notably ozone and chlorine monoxide, which plays an important role in the ozone cycle. MAS was developed under the responsibility of Dr. Gerd Hartmann of the Max-Planck- Institute fuer Aeronomy, Lindau, Germany. The complex space-to-ground communications links and the tools to control the instruments from the laboratories in Europe have been designed to be as flexible and user-friendly as possible. The series of Atlas missions is enabling ESA to gain valuable experience for the future utilisation of its Columbus Attached Laboratory; its science results are at the same time a contribution to today's advances in space science and environmental research, complementing a number of dedicated ESA satellites currently under development, such as SOHO, ERS-2 and ENVISAT-1. Note to Editors : At the invitation of the Belgian Minister for Science Policy a press conference will be held on 22 March 1993 at 16.00 hours at the Belgian Royal Meteorological Institute in Brussels (IRMB). The press conference will be followed by the inauguration of the Space Remote Operations Centre, from where the telescience operations for the ATLAS-2 mission will be carried out. Apart from the Minister, those participating will include: Dirk Frimout, Belgian astronaut and ESA staff member Dominique Crommelynck, IRMB, Principal Investigator for SOLCON Gerard Thuillier, CNRS France, Principal Investigator for SOLSPEC Further information can be obtained from the Belgian Science Policy Office, Mrs. M.C. Limbourg or Mr. J. Bernard : Tel : +32.2.238.34.11 - Fax : +32.2.230.59.12

  5. Angkor, Cambodia

    NASA Technical Reports Server (NTRS)

    1995-01-01

    the ancient city. The SIR-C/X-SAR data are being used by archaeologists at the World Monuments Fund and the Royal Angkor Foundation to understand how the city grew, flourished and later fell into disuse over an 800-year period. The data are also being used to help reconstruct the vast system of hydrological works, canals and reservoirs, which have gone out of use over time. Research teams from more than 11 countries will be using this data to study the Angkor complex.

    Spaceborne Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  6. PREFACE: XVth International Conference on Calorimetry in High Energy Physics (CALOR2012)

    NASA Astrophysics Data System (ADS)

    Akchurin, Nural

    2012-12-01

    Livan, Pavia Univ. & INFN Pasquale Lubrano, INFN Perugia Steve Magill, ANL Amelia Maio, LIPP Lisbon Horst Oberlack, MPI Munich Adam Para, FNAL Klaus Pretzl, Univ. of Bern Yifang Wang, IHEP Beijing Richard Wigmans, TTU Ren-Yuan Zhu, Caltech Local Organizing Committee: Nural Akchurin, TTU Debra Boyce, TTU (Secretary) Xiadong Jiang, LANL Jon Kapustinsky, LANL Sung-Won Lee, TTU Sally Seidel, UNM Igor Volobouev, TTU Session Conveners: LHC I-III: David Barney (CERN) Ana Henriques (CERN) Sally Seidel (UNM) Calorimetry Techniques I-II: Francesca Tedaldi (ETH-Zurich) Tao Hu (IHEP-Beijing) Calorimetry Techniques III-IV: Craig Woody (BNL) Tohru Takeshita (Shinshu) Astrophysics and Neutrinos: Don Groom (LBNL) Steve Magill (ANL) Operating Calorimeters: Jordan Damgov (TTU) Gabriella Gaudio (INFN-Pavia) Frank Chlebana (FNAL) Algorithms and Simulations: Artur Apresyan (Caltech) Igor Volobouev (TTU) Front-end and Trigger: Chris Tully (Princeton) Kejun Zhu (IHEP-Beijing) Future Calorimetry: Michele Livan (Pavia Univ.) Frank Simon (MPI) Vishnu Zutshi (NICADD) List of Participants: ABOUZEID, Hass University of Toronto AKCHURIN, Nural Texas Tech University ANDEEN, Timothy Columbia University ANDERSON, Jake Fermilab APRESYAN, Artur California Institute of Technology AUFFRAY, Etiennette CERN BARILLARI, Teresa Max-Planck-Inst. fuer Physik BARNEY, David CERN BESSON, Dave University of Kansas BOYCE, Debra Texas Tech University BRUEL, Philippe LLR, Ecole Polytechnique, CNRS/IN2P3 BUCHANAN, Norm Colorado State University CARLOGANU, Cristina LPC Clermont Ferrand / IN2P3 / CNRS CHEFDEVILLE, Maximilien CNRS/IN2P3/LAPP CHLEBANA, Frank Fermilab CLARK, Jonathan Texas Tech University CONDE MUINO, Patricia LIP-Lisboa COWDEN, Christopher Texas Tech University DA SILVA, Cesar Luiz Los Alamos National Lab DAMGOV, Jordan Texas Tech University DAVYGORA, Yuriy University of Heidelberg DEMERS, Sarah Yale University EIGEN, Gerald University of Bergen EUSEBI, Ricardo Texas A&M University FERRI, Federico CEA

  7. Space Radar Image of Safsaf, North Africa

    NASA Technical Reports Server (NTRS)

    1999-01-01

    , Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI).

  8. EDITORIAL: Message from the Editor Message from the Editor

    NASA Astrophysics Data System (ADS)

    Thomas, Paul

    2012-01-01

    Board Members, Guest Editors of special editions and those referees who were already listed in the last years. The following people have been selected: Marina Becoulet, CEA Cadarache, France Russell Doerner, University of California - San Diego, USA Emiliano Fable, Max-Planck-Institut fuer Plasmaphysik, Germany Akihide Fujisawa, Kyushi University, Japan Gerardo Giruzzi, CEA Cadarache, France Grigory Kagan, LANL, USA Morten Lennholm, CCFE, UK Akinobu Matsuyama, NIFS, Japan Peter Stangeby, University of Toronto, Canada Leonid Zakharov, PPPL, USA In addition, there is a group of several hundred referees who have helped us in the past year to maintain the high scientific standard of Nuclear Fusion. At the end of this issue we give the full list of all referees for 2011. Our thanks to them! Authors The winner of the 2011 Nuclear Fusion Award is H. Urano, for the paper 'Dimensionless parameter dependence of H-mode pedestal width using hydrogen and deuterium plasmas in JT-60U' (Nucl. Fusion 48 045008). The award was presented at the Plasma Conference 2011 (Joint meeting of 28th JSPF Annual Meeting, The 29th Symposium on Plasma Processing, and Division of Plasma Physics, 2011 Autumn Meeting of The Physical Society of Japan). This is the sixth year that the International Atomic Energy Agency (IAEA) has awarded an annual prize to honour exceptional work published in Nuclear Fusion. IOP Publishing has generously made a contribution of $2500 to the award. The Nuclear Fusion Electronic Archive The journal's electronic archive has been online since the beginning of the year. The archive has been a roaring success and has contributed to the nearly 300 000 downloads of journal papers in 2011. The archive can be accessed via http://iopscience.iop.org/0029-5515/page/Archive. It has direct links to 16 landmark papers, from authors such as Artsimovich and Mercier. The Nuclear Fusion office and IOP Publishing Just as the journal depends on the authors and referees, so its success is also

  9. Message from the Editor

    NASA Astrophysics Data System (ADS)

    Stambaugh, Ronald D.

    2013-01-01

    reviewed five manuscripts in the period November 2011 to December 2012 and provided excellent advice to the authors. We have excluded our Board Members, Guest Editors of special editions and those referees who were already listed in recent years. The following people have been selected: Marina Becoulet, CEA-Cadarache, France Jiaqui Dong, Southwestern Institute of Physics, China Emiliano Fable, Max-Planck-Institut für Plasmaphysik, Germany Ambrogio Fasoli, Ecole Polytechnique Federale de Lausanne, Switzerland Eric Fredrickson, Princeton Plasma Physics Laboratory, USA Manuel Garcia-Munoz, Max-Planck-Institut fuer Plasmaphysik, Germany William Heidbrink, California University, USA Katsumi Ida, National Inst. For Fusion Science, Japan Peter Stangeby, Toronto University, Canada James Strachan, Princeton Plasma Physics Laboratory, USA Victor Yavorskij, Ukraine National Academy of Sciences, Ukraine In addition, there is a group of several hundred referees who have helped us in the past year to maintain the high scientific standard of Nuclear Fusion. At the end of this issue we give the full list of all referees for 2012. Our thanks to them!

  10. Space Radar Image of Yellowstone Park, Wyoming

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italian

  11. EDITORIAL: Message from the Editor

    NASA Astrophysics Data System (ADS)

    Thomas, Paul

    2009-01-01

    The end of 2008 cannot pass without remarking that the economic news has repeatedly strengthened the case for nuclear fusion; not perhaps to solve the immediate crises but to offer long-term security of energy supply. Although temporary, the passage of the price of oil through 100 per barrel is a portent of things to come and should bolster our collective determination to develop nuclear fusion into a viable energy source. It is with great pride, therefore, that I can highlight the contributions that the Nuclear Fusion journal has made to the research programme and the consolidation of its position as the lead journal in the field. Of course, the journal would be nothing without its authors and referees and I would like to pass on my sincere thanks to them all for their work in 2008 and look forward to a continuing, successful collaboration in 2009. Refereeing The Nuclear Fusion Editorial Office understands how much effort is required of our referees. The Editorial Board decided that an expression of thanks to our most loyal referees is appropriate and so, since January 2005, we have been offering the top ten most loyal referees over the past year a personal subscription to Nuclear Fusion with electronic access for one year, free of charge. To select the top referees we have adopted the criterion that a researcher should have acted as a referee or adjudicator for at least two different manuscripts during the period from November 2007 to November 2008 and provided particularly detailed advice to the authors. We have excluded our Board members and those referees who were already listed in the last four years. According to our records the following people met this criterion. Congratulations and many, many thanks! T. Hino (Hokkaido University, Japan) M. Sugihara (ITER Cadarache, France) M. Dreval (Saskatchewan University, Canada) M. Fenstermacher (General Atomics, USA) V.S. Marchenko (Institute for Nuclear Research, Ukraine) G.V. Pereverzev (Max-Planck-Institut fuer

  12. ESO Council Visits First VLT Unit Telescope Structure in Milan

    NASA Astrophysics Data System (ADS)

    1995-12-01

    (UT4). Mirrors and Instruments As earlier announced, ESO officially received the first 8.2-metre VLT mirror from REOSC in Paris [3] on November 21. The polishing of the second mirror has already started and, based on the experience gained with the first, it is expected that this work will be accomplished in less time. The third blank is already at REOSC and the fourth will soon be ready at Schott Glaswerke in Mainz (Germany). Following extended studies, and as yet another move towards new technology within the VLT project, it has now been decided to make the 1.2-metre secondary VLT mirrors of beryllium, a very light, exotic metal. The contracting firm is Dornier of the DASA group (Germany). This saves much weight and allows these relatively large mirrors to be efficiently used in the `chopping and tilting' mode needed for observations in the infrared wavelength region as well as for the critical, image-sharpening adaptive optics system. Significant progress has also been achieved on the first astronomical instruments which will be installed at the VLT. The integration of the first two of these, ISAAC and CONICA which will be installed on UT1 in the course of 1997, has already started in the ESO laboratories at the Headquarters in Garching. Important advances have also taken place within the FORS (managed by a consortium of Landessternwarte Heidelberg, Universitaets-Sternwarte Goettingen and Institut fuer Astronomie und Astrophysik der Ludwig Maximilians Universitaet Muenchen) and FUEGOS (Paris Observatory, Meudon Observatory, Toulouse Observatory, Geneva Observatory and Bologna Observatory) projects. More details about these and other VLT instruments will be given in later communications. Notes: [1] The Council of ESO consists of two representatives from each of the eight member states. It is the highest legislative authority of the organisation and normally meets twice a year. This time, Council was invited to Milan by the Director of the Osservatorio di Brera (Milan