Search

Your search keyword '"Hsieh, H.H."' showing total 98 results
Start Over Author "Hsieh, H.H."
98 results on '"Hsieh, H.H."'

5. The Castalia mission to Main Belt Comet 133P/Elst-Pizarro

Author

Snodgrass, C., Jones, G.H., Boehnhardt, H., Gibbings, A., Homeister, M., Andre, N., Beck, P., Bentley, M.S., Bertini, I., Bowles, N., Capria, M.T., Carr, C., Ceriotti, M., Coates, A.J., Della Corte, V., Donaldson Hanna, K.L., Fitzsimmons, A., Gutiérrez, P.J., Hainaut, O.R., Herique, A., Hilchenbach, M., Hsieh, H.H., Jehin, E., Karatekin, O., Kofman, W., Lara, L.M., Laudan, K., Licandro, J., Lowry, S.C., Marzari, F., Masters, A., Meech, K.J., Moreno, F., Morse, A., Orosei, R., Pack, A., Plettemeier, D., Prialnik, D., Rotundi, A., Rubin, M., Sánchez, J.P., Sheridan, S., Trieloff, M., and Winterboer, A.

Published
2018
Full Text
View/download PDF

9. Effect of Degradation Factors on Solar Module Encapsulant Materials

Author

Hsieh, H.H., Chen, S.H., Yang, W.L., Lai, C.C., Kuan, M.T., and Liu, Y.C.

Subjects
Materials for PV Modules, Durability, Reliability and Accelerated Testing Methods, Photovoltaic Modules and BoS Components
Abstract

8th World Conference on Photovoltaic Energy Conversion; 890-892, Solar encapsulant material is considered to be used in PV module for its high chemical stability and optical performance. And Ethylene Vinyl Acetate (EVA) has been widely used in c-Si solar module in the past decades. However, reviewing the literature, PV degradation concerning the encapsulant materials is around 25 %, which is higher than the other module components. To approach its performance and reliability, the accelerated aging tests such as UV exposure, humidity, and thermal variation. In this research, a cyclic UV exposure/Thermal cycling test/Humidity Freeze sequential aging test cited from IEC 61215 is proposed to observe the power degradation in each step. According to the test results, it is detected that most encapsulant materials can sustain four aging cycles with a power loss less than 5 %. To study the variation in power, it is noted that a higher power drop during humidity freeze test (generally > 0.5 %), while a slight recovery in UV exposure. Humidity freeze test is a testing condition of high temperature (85 ºC) and humidity (85 % RH), and the following UV test is an exposure chamber at 60 ºC. Thus, it is suggested that the key factors degrading EVA are humidity and temperature (Humidity freeze testing condition), yet UV exposure is supposed to evaporate the humidity from module.

Published
2022
Full Text
View/download PDF

14. The impact and recovery of asteroid 2008 T[C.sub.3]

Author

Jenniskens, P., Shaddad, M.H., Numan, D., Elsir, S., Kudoda, A.M., Zolensky, M.E., Le, L., Robinson, G.A., Friedrich, J.M., Rumbles, D., Steeles, A., Chesley, S.R., Fitzsimmons, A., Duddy, S., Hsieh, H.H., Ramsay, G., Brown, P.G., Edwards, W.N., Tagliaferri, E., Boslough, M.B., Spalding, R.E., Dantowitz, R., Kozubal, M., Pravec, P., Borovicka, J., Charvat, Z., Vaubaillon, J., Kuiper, J., Albers, J., Bishop, J.L., Mancinelli, R.L., Sandford, S.A., Milam, S.N., Nuevo, M., and Worden, S. P.

Subjects
Asteroids -- Spectra -- Discovery and exploration -- Research, Meteorites -- Spectra -- Research -- Discovery and exploration, Environmental issues, Science and technology, Zoology and wildlife conservation, Discovery and exploration, Research, Spectra
Abstract

In the absence of a firm link between individual meteorites and their asteroidal parent bodies, asteroids are typically characterized only by their light reflection properties, and grouped accordingly into classes (1-3). On 6 October 2008, a small asteroid was discovered with a flat reflectance spectrum in the 554-995 nm wavelength range, and designated 2008 T[C.sub.3] (refs 4-6). It subsequently hit the Earth. Because it exploded at 37 km altitude, no macroscopic fragments were expected to survive. Here we report that a dedicated search along the approach trajectory recovered 47 meteorites, fragments of a single body named Almahata Sitta, with a total mass of 3.95 kg. Analysis of one of these meteorites shows it to be an achondrite, a polymict ureilite, anomalous in its class: ultra-fine-grained and porous, with large carbonaceous grains. The combined asteroid and meteorite reflectance spectra identify the asteroid as F class (3), now firmly linked to dark carbon-rich anomalous ureilites, a material so fragile it was not previously represented in meteorite collections., The asteroid was discovered by the automated Catalina Sky Survey telescope at Mount Lemmon, Arizona on October 6 06:39 uTc (ref. 4). Early orbital solutions showed an impact 19 h [...]

Published
2009

20. X-ray absorption of Si-C-N thin films: A comparison between crystalline and amorphous phases

Author

Chang, Y.K., Hsieh, H.H., Pong, W.F., Tsai, M.H., Dann, T.E., Chien, F.Z., Tseng, P.K., Chen, L.C., Wei, S.L., Chen, K.H., Wu, J.J., and Chen, Y.F.

Subjects
Silicon carbide -- Research, Thin films -- Research, Physics
Abstract

High-energy spherical grating monochromator and InsB(111) double crystal monochromator beamlines were used to measure the C, N and Si K-edge x-ray absorption spectra of c- and a-Si-C-N films.

Published
1999

21. Coherence-enhanced synchrotron radiology: refraction versus diffraction mechanisms

Author

Hwu, Y., Hsieh, H.H., Lu, M.J., Tsai, W.L., Lin, H.M., Goh, W.C., Lai, B., Je, J.H., Kim, C.K., Noh, D.Y., Tromba, G., and Margaritondo, G.

Subjects
Diffraction -- Research, Imaging systems -- Image quality, Refraction -- Research, Synchrotron radiation sources -- Research, Physics
Abstract

Research was conducted to examine coherence-enhanced synchrotron radiology. The investigation revealed that both refraction and edge diffraction can play a role in radiological images taken with coherent synchrotron light and that their relative weight in a given image relies on the experimental geometry, type of specimen and other parameters. This finding could be used to achieve more detailed and complementary radiological information.

Published
1999

28. The Castalia Mission to Main Belt Comet 133P/Elst-Pizarro

Author

Snodgrass, C., Jones, G.H., Boehnhardt, H., Gibbings, A., Homeister, M., Andre, N., Beck, P., Bentley, M.S., Bertini, I., Bowles, N., Capria, M.T., Carr, C., Ceriotti, M., Coates, A.J., Della Corte, V., Donaldson Hanna, K.L., Fitzsimmons, A., Gutiérrez, P.J., Hainaut, O.R., Herique, A., Hilchenbach, M., Hsieh, H.H., Jehin, E., Karatekin, O., Kofman, W., Lara, L.M., Laudan, K., Licandro, J., Lowry, S.C., Marzari, F., Masters, A., Meech, K.J., Moreno, F., Morse, A., Orosei, R., Pack, A., Plettemeier, D., Prialnik, D., Rotundi, A., Rubin, M., Sánchez, J.P., Sheridan, S., Trieloff, M., Winterboer, A., School of Physical Sciences [Milton Keynes], Faculty of Science, Technology, Engineering and Mathematics [Milton Keynes], The Open University [Milton Keynes] (OU)-The Open University [Milton Keynes] (OU), Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, Department of Mechanical and Aerospace Engineering [Univ Strathclyde], University of Strathclyde [Glasgow], OHB Systems AG, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Space Research Institute of Austrian Academy of Sciences (IWF), Austrian Academy of Sciences (OeAW), Centro di Ateneo di Studi e Attività Spaziali 'Giuseppe Colombo' (CISAS), Universita degli Studi di Padova, Department of Atmospheric, Oceanic and Planetary Physics [Oxford] (AOPP), University of Oxford [Oxford], Istituto di Astrofisica e Planetologia Spaziali - INAF (IAPS), Istituto Nazionale di Astrofisica (INAF), Space and Atmospheric Physics Group [London], Blackett Laboratory, Imperial College London-Imperial College London, Mullard Space Science Laboratory (MSSL), University College of London [London] (UCL), Astrophysics Research Centre [Belfast] (ARC), Queen's University [Belfast] (QUB), Max-Planck-Institut für Sonnensystemforschung (MPS), Institut d'Astrophysique et de Géophysique [Liège], Université de Liège, Royal Observatory of Belgium [Brussels] (ROB), Instituto de Astrofísica de Andalucía (IAA), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Instituto de Astrofisica de Canarias (IAC), Centre for Astrophysics and Planetary Science [Canterbury] (CAPS), University of Kent [Canterbury], Dipartimento di Fisica e Astronomia 'Galileo Galilei', Istituto di Astrofisica Spaziale e Fisica cosmica - Roma (IASF-Roma), Technische Universität Dresden = Dresden University of Technology (TU Dresden), Tel Aviv University [Tel Aviv], Universita degli studi di Napoli 'Parthenope' [Napoli], Physikalisches Institut [Bern], Universität Bern [Bern], Universität Heidelberg [Heidelberg], Science and Technology Facilities Council (STFC), Science and Technology Facilities Council [2006-2012], The Royal Society, The Open University [Milton Keynes] (OU), Department of Mechanical and Aerospace Engineering [Glasgow], University of Strathclyde, Centre National d'Études Spatiales [Toulouse] (CNES)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Royal Observatory of Belgium [Brussels], Consejo Superior de Investigaciones Científicas [Spain] (CSIC), Technische Universität Dresden (TUD), Science and Technology Facilities Council (UK), European Southern Observatory, ITA, GBR, FRA, DEU, ESP, and CHE

Subjects
Earth and Planetary Astrophysics (astro-ph.EP), Asteroids, Comets, Main Belt Comets, Spacecraft missions, 520 Astronomy, astro-ph.EP, [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], FOS: Physical sciences, 620 Engineering, 0901 Aerospace Engineering, 0201 Astronomical And Space Sciences, Aerospace & Aeronautics, ComputingMilieux_MISCELLANEOUS, Astrophysics - Earth and Planetary Astrophysics, 0913 Mechanical Engineering, QB
Abstract

This is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/, We describe Castalia, a proposed mission to rendezvous with a Main Belt Comet (MBC), 133P/Elst-Pizarro. MBCs are a recently discovered population of apparently icy bodies within the main asteroid belt between Mars and Jupiter, which may represent the remnants of the population which supplied the early Earth with water. Castalia will perform the first exploration of this population by characterising 133P in detail, solving the puzzle of the MBC's activity, and making the first in situ measurements of water in the asteroid belt. In many ways a successor to ESA's highly successful Rosetta mission, Castalia will allow direct comparison between very different classes of comet, including measuring critical isotope ratios, plasma and dust properties. It will also feature the first radar system to visit a minor body, mapping the ice in the interior. Castalia was proposed, in slightly different versions, to the ESA M4 and M5 calls within the Cosmic Vision programme. We describe the science motivation for the mission, the measurements required to achieve the scientific goals, and the proposed instrument payload and spacecraft to achieve these. © 2017 COSPAR, CS is funded by the UK Science and Technology Facilities Council through a Ernest Rutherford fellowship. Fig. 1 is based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere under ESO programme 184.C-1143.

Published
2017
Full Text
View/download PDF

33. Valence, spin, and orbital state of Co ions in one-dimensional Ca3 Co2 O6: An x-ray absorption and magnetic circular dichroism study

Author

Burnus, T., Hu, Z., Haverkort, M.W., Cezar, J.C., Flahaut, D., Hardy, V., Maignan, A., Brookes, N.B., Tanaka, A., Hsieh, H.H., Lin, H.-J., Chen, C.T., Tjeng, L.H., Universität zu Köln = University of Cologne, European Synchroton Radiation Facility [Grenoble] (ESRF), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de cristallographie et sciences des matériaux (CRISMAT), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Hiroshima University, École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC), Max Planck Institute for Chemical Physics of Solids (CPfS), and Max-Planck-Gesellschaft

Subjects
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Condensed Matter::Materials Science, [CHIM]Chemical Sciences, Condensed Matter::Strongly Correlated Electrons, [CHIM.MATE]Chemical Sciences/Material chemistry
Abstract

International audience; We have investigated the valence, spin, and orbital state of the Co ions in the one-dimensional cobaltate Ca3 Co2 O6 using x-ray absorption and x-ray magnetic circular dichroism at the Co- L2,3 edges. The Co ions at both the octahedral Cooct and trigonal Cotrig sites are found to be in a 3+ state. From the analysis of the dichroism we established a low-spin state for the Cooct and a high-spin state with an anomalously large orbital moment of 1.7 μB at the Cotrig 3+ ions. This large orbital moment along the c -axis chain and the unusually large magnetocrystalline anisotropy can be traced back to the double occupancy of the d2 orbital in trigonal crystal field. © 2006 The American Physical Society.

Published
2006

34. Veloplastia funcional secundaria: Una alternativa no obstructiva en el tratamiento de la insuficiencia velofaríngea

Author

Cortés Araya, J., Niño Duarte, A.Y., Sung Hsieh, H.H., and Gómez Sánchez, B.

Subjects
Palatoplastia, Velopharyngeal Insufficiency, Insuficiencia Velofaríngea, Velopharyngeal Incompetence, Incompetencia Velofaríngea, Palatoplasty
Abstract

Introducción. La insuficiencia velofaríngea es quizá la secuela más común de las técnicas de veloplastia realizadas para la corrección de las fisuras palatinas. A menudo la terapia fonoaudiológica se encuentra limitada, obteniéndose generalmente sólo resultados parciales. En estos casos la faringoplastia se presenta como el tratamiento de elección, existiendo diversas técnicas publicadas. Éstas, cualesquiera que sean, tienen en común la utilización de colgajos faríngeos que determinan una reducción del diámetro de la vía aérea superior con el consiguiente riesgo de generar un trastorno obstructivo del sueño. Objetivos. En el ánimo de obviar esta situación y simultáneamente alargar y dar competencia velopalatina, se ha diseñado una técnica quirúrgica que tiene por objetivo la reconstrucción morfofuncional velar o veloplastia funcional secundaria, inspirada en los principios de Delaire. Material y técnica quirúrgica. Presentamos nuestra experiencia basada en una serie de 15 casos tratados de esta nueva manera: se divide completamente el paladar blando, incindiendo sobre la línea media y exponiendo ambos hemivelos hasta la región retrouvular. En ese momento se busca e identifican las estructuras musculares remanentes, se separan del borde óseo palatino y de las mucosa nasal y bucal y se unen en una posición más posterior con las contralaterales en la línea media. Resultados. En nuestra experiencia se ha logrado el alargamiento velopalatino y la corrección o mejoramiento de rinolalias. En la evaluación de resultados hemos utilizado tanto el examen clínico fonoaudiológico como la aerofonoscopía con muy buenos resultados comparativos. Introduction: Velopharyngeal insufficiency could be produced by a partial or inappropriate veloplasty performed to correct palate clefts. Phonoaudiologic therapy is often limited, and generally only obtains partial results. In these cases, pharyngoplasty seems to be the procedure of choice, there being several techniques published. Whatever they are, they have the common factor of the use of pharyngeal flaps that determine a reduction of the upper airway diameter with the consequent risk of generating obstructive sleep disorder. Objective: In order to obviate this situation and simultaneously lengthen and provide velopalatine competence, a surgical technique, inspired by the DELAIRE principles, that aims to make the velar mophofunctional reconstruction or secondary functional veloplasty has been designed. Surgical procedure: We present our experience based on a series of 15 cases treated in this new way: the soft palate, affecting the middle line and exposing both hemivelar portions until the retrouvular region. At this moment, the remaining muscular structures are identifyed, the palatal bone and nasal and buccal mucosa border are separated and are joined in a more posterior position of the contralaterals of the midline. Results: In our experience, we have achieved velar lengthening and hypernasal correction or improvement. After the surgery, patients were evaluated with a phonetic test and aerophonoscopy. The outcome of this evaluation has shown the effectiveness of this surgical technique.

Published
2004

50. Oxidation behavior of an Zr53Ni23.5Al23.5 bulk metallic glass at 400–600°C

Author

Kai, W., Hsieh, H.H., Chen, Y.R., Wang, Y.F., and Dong, C.

Subjects
*OXIDATION, *METALLIC glasses, *ZIRCONIUM, *NICKEL, *ALUMINUM, *TEMPERATURE
Abstract

Abstract: The oxidation behavior of the Zr53Ni23.5Al23.5 bulk metallic glass (BMG) and its crystalline counterpart was investigated over the temperature range of 400–600°C in dry air and pure oxygen. In general, the oxidation kinetics of BMG followed the single- or two-stage parabolic rate law at T ≤ 500°C, with rate constants (K p values) generally increased with temperature. Conversely, three-stage parabolic kinetics were observed for BMG at T ≥ 550°C, with K p values decreased with increasing temperature. The oxidation rate constants for the BMG alloy are slightly higher than those for crystalline alloy at T ≤ 500°C. In addition, K p values of BMG were nearly independent of partial pressure of oxygen, implying a typical scaling behavior with a n-type semiconductivity. The scales formed on the BMG is temperature-dependent, consisting mainly of tetragonal-ZrO2 (t-ZrO2) and minor amounts of Al2O3 at T ≤ 475°C. At higher temperatures (T ≥ 500°C), some monoclinic-ZrO2 (m-ZrO2) were also detected, and its amounts increased with increasing temperature. The BMG substrate began to form the crystalline Zr2Ni, Zr2Al, and ZrNiAl phases beneath the scales after oxidation at T ≥ 450°C. [Copyright &y& Elsevier]

Published
2007
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results