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Monday Morning, October 19, 2015
Monday Morning, October 19, 2015 Energy Frontiers Focus Topic Willow glass is a new material introduced recently to the market, while nickel is a inexpensive flexible reflective foil. The Corning Willow glass is Room: 211B - Session EN+AS+EM+NS+SE+SS+TF- coated with a molybdenum layer as a reflective back contact layer. By using MoM a single step and a solution deposition method, lower production cost are achievable. For thin film deposition, we used a non-vacuum spin coater (WS650 spin processor, Laurell Technologies) with an optimized spin coat Solar Cells I programming. Annealing took place under vacuum in a RTP furnace while Moderator: Jason Baxter, Drexel University, Chintalapalle time, temperature and ramp functions were varied. The other layers of the Ramana, University of Texas at El Paso device consists of cadmium sulfide n-type window layer and a zinc oxide doped with aluminum transparent top contact layer. Characterization and analysis of the thin films were performed using Raman spectroscopy, 8:20am EN+AS+EM+NS+SE+SS+TF-MoM1 Elevated Temperature scanning election microscope (Zeiss NEON 40), X-ray diffraction (Philipps Phase Stability of CZTS-Se Thin Films for Solar Cells, E. Chagarov, K. X’Pert), proflimeter (Veeco Dektak 150), UV-Vis-NIR Spectrophotometer Sardashti, University of California at San Diego, D.B. Mitzi, Duke (Carry 5000), Hall Effect measurement system (HMS3000) and 4 point University, R.A. Haight, IBM T.J. Watson Research Center, Andrew C. probe (Lucas Labs) measurements. Results show CZTS thin film solar cells Kummel, University of California at San Diego on flexible glass is obtainable. -
JOURNAL of CONDENSED MATTER NUCLEAR SCIENCE Experiments and Methods in Cold Fusion
JOURNAL OF CONDENSED MATTER NUCLEAR SCIENCE Experiments and Methods in Cold Fusion Proceedings of the first French Symposium RNBE-2016 on Condensed Matter Nuclear Science (Réactions Nucléaires à Basse Énergie), March 18–20, 2016 VOLUME 21, November 2016 JOURNAL OF CONDENSED MATTER NUCLEAR SCIENCE Experiments and Methods in Cold Fusion Editor-in-Chief Jean-Paul Biberian Marseille, France Editorial Board Peter Hagelstein Xing Zhong Li Edmund Storms MIT, USA Tsinghua University, China KivaLabs, LLC, USA George Miley Michael McKubre Fusion Studies Laboratory, SRI International, USA University of Illinois, USA JOURNAL OF CONDENSED MATTER NUCLEAR SCIENCE Volume 21, November 2016 © 2016 ISCMNS. All rights reserved. ISSN 2227-3123 This journal and the individual contributions contained in it are protected under copyright by ISCMNS and the following terms and conditions apply. Electronic usage or storage of data JCMNS is an open-access scientific journal and no special permissions or fees are required to download for personal non-commercial use or for teaching purposes in an educational institution. All other uses including printing, copying, distribution require the written consent of ISCMNS. Permission of the ISCMNS and payment of a fee are required for photocopying, including multiple or systematic copying, copying for advertising or promotional purposes, resale, and all forms of document delivery. Permissions may be sought directly from ISCMNS, E-mail: [email protected]. For further details you may also visit our web site: http:/www.iscmns.org/CMNS/ Members of ISCMNS may reproduce the table of contents or prepare lists of articles for internal circulation within their institutions. Orders, claims, author inquiries and journal inquiries Please contact the Editor in Chief, [email protected] or [email protected] J. -
Long Coherence Time and Precision Measurement of Atomic Interactions in a Bose-Einstein Condensate
Long Coherence Time and Precision Measurement of Atomic Interactions in a Bose-Einstein Condensate M. Egorov, V. Ivannikov, R. Anderson, I. Mordovin, B. Opanchuk, B.V. Hall, P. Drummond, P. Hannaford and A. I. Sidorov Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, Melbourne 3122, Australia [email protected] Abstract: We report a high precision method of measuring s-wave scattering lengths in a Bose-Einstein condensate (BEC) and a coherence time of 2.8 s in a Ramsey interferometer employing an interacting BEC. 1. Introduction Atomic interactions play a major role in ultracold quantum gases, matter-wave interferometry and frequency shifts of atomic clocks. Precise knowledge of inter-particle interaction strengths is important because the dynamical evolution of a Bose-Einstein condensate is highly sensitive to atomic collisions and BEC interferometry is greatly influenced by mean-field driven dephasing [1] and quantum phase diffusion [2]. Here we demonstrate that in the presence of atomic interactions the interference contrast can be enhanced by mean-field rephasing of the condensate and the timely application of a spin echo pulse [3]. We observe a periodic decrease and revival of the contrast with a slowly decaying magnitude. We also employ collective oscillations of a two-component BEC for −4 the precision measurement of the interspecies scattering length a12 with a relative uncertainty of 1.6 × 10 . 2. Periodical Rephasing and Long Coherence Time of BEC A 87Rb condensate is trapped in a cigar-shaped magnetic trap on an atom chip [4] in two internal states (|1 = |F =1,mF = −1 and |2 = |F =2,mF =+1) coupled via a two-photon MW-RF transition. -
2012 National History Bee National Championships Round 1: (Early Non-US History)
2012 National History Bee National Championships Round 1: (Early Non-US History) 2012 NATIONAL HISTORY BEE NATIONAL CHAMPIONSHIPS ROUND 1: (EARLY NON-US HISTORY) 1. This man's claim to the throne was enabled by Richard II’s Letters Patent in 1397, legitimizing the offspring of Katherine Swynford. Thus the claim from his mother, Lady Margaret Beauford, who was the great-granddaughter of John of Gaunt, was accepted even though the Portuguese and Spanish royal families had better claims. To help end the War of the Roses, he married Elizabeth of York, Edward IV’s daughter. For the point, name this first Tudor monarch who gained command of England after defeating Richard III at the Battle of Bosworth Field. ANSWER: Henry VII [prompt on Henry] 147-12-58-19101 2. This emperor sent Pliny the Younger to investigate corruption among the administrators of Bithynia. This man renovated the road that connected Bostra to the Red Sea, the King's Highway. Parthia's decision over the new king of Armenia provoked this man to sack Ctesiphon. This man was unable to conceive a child with his wife, Pompeia Plotina. He also commissioned a large bridge near the Iron Gates while fighting in the Danube region. Under his reign, the Roman Empire expanded as far eastward as the Persian Gulf, thereby reaching its farthest extent in 117 CE. For the point, identify this second of the Five Good Emperors who commemorated his victory in the Dacian War by building a namesake column in Rome. ANSWER: Trajan [or Marcus Ulpius Traianus] 064-12-58-19102 3. -
Research Article Nuclear Processes in Dark Interstellar Matter of H(0) Decrease the Hope of Migrating to Exoplanets
AAAS Space: Science & Technology Volume 2021, Article ID 9846852, 6 pages https://doi.org/10.34133/2021/9846852 Research Article Nuclear Processes in Dark Interstellar Matter of H(0) Decrease the Hope of Migrating to Exoplanets Leif Holmlid Department of Chemistry and Molecular Biology, University of Gothenburg, SE-412 96 Göteborg, Sweden Correspondence should be addressed to Leif Holmlid; [email protected] Received 24 November 2020; Accepted 11 August 2021; Published 3 September 2021 Copyright © 2021 Leif Holmlid. Exclusive Licensee Beijing Institute of Technology Press. Distributed under a Creative Commons Attribution License (CC BY 4.0). It is still generally assumed that interstellar travel will be possible after purely technical development and thus that mankind can move to some suitable exoplanet when needed. However, recent research indicates this not to be the case, since interstellar space is filled with enough ultradense hydrogen H(0) as stable condensed dark matter (Holmlid, Astrophysical Journal 2018) to make interstellar space travel at the required and technically feasible relativistic velocities (Holmlid et al, Acta Astronautica 2020) almost impossible. H(0) can be observed to exist in space from the so-called extended red emission (ERE) features observed in space. A recent review (Holmlid et al., Physica Scripta 2019) describes the properties of H(0). H(0) gives nuclear processes emitting kaons and other particles, with kinetic energies even above 100 MeV after induction for example by fast particle (spaceship) impact. These high particle energies give radiative temperatures of 12000 K in collisions against a solid surface and will rapidly destroy any spaceship structure moving into the H(0) clouds at relativistic velocity. -
Mathematics Education in Iran from Ancient to Modern
Mathematics Education in Iran From Ancient to Modern Yahya Tabesh Sharif University of Technology Shima Salehi Stanford University 1. Introduction Land of Persia was a cradle of science in ancient times and moved to the modern Iran through historical ups and downs. Iran has been a land of prominent, influential figures in science, arts and literature. It is a country whose impact on the global civilization has permeated centuries. Persian scientists contributed to the understanding of nature, medicine, mathematics, and philosophy, and the unparalleled names of Ferdowsi, Rumi, Rhazes, al-Biruni, al-Khwarizmi and Avicenna attest to the fact that Iran has been perpetually a land of science, knowledge and conscience in which cleverness grows and talent develops. There are considerable advances through education and training in various fields of sciences and mathematics in the ancient and medieval eras to the modern and post-modern periods. In this survey, we will present advancements of mathematics and math education in Iran from ancient Persia and the Islamic Golden Age toward modern and post-modern eras, we will have some conclusions and remarks in the epilogue. 2. Ancient: Rise of the Persian Empire The Land of Persia is home to one of the world's oldest civilizations, beginning with its formation in 3200–2800 BC and reaching its pinnacle of its power during the Achaemenid Empire. Founded by Cyrus the Great in 550 BC, the Achaemenid Empire at its greatest extent comprised major portions of the ancient world. Persian Empire 1 Governing such a vast empire was, for sure in need of financial and administration systems. -
Sociedade Internacional Para a História Da Otorrinolaringologia Robert J
Sociedade Internacional Para a História da Otorrinolaringologia Robert J. Ruben Introdução As doenças otológicas sempre existiram, mas foram apreciadas de maneiras muito diferentes ao longo do tempo e do local. Como parte de um projeto em andamento, surgiu a questão de qual era o estado da Otologia na época, chamada antiguidade tardia1 de 200 a 600, da Crise do Império Romano no Terceiro Sécu- lo2 (235-284) para, no Oriente, o período do início do Islã (séculos VII-IX), após as conquistas muçulmanas em meados do século VII? Foi realizada uma pesquisa e análise sistemática usando-se 15 (quinze) palavras de pesquisa das traduções originais do material para este período. A antiguidade tardia é considerada como um período de pouco avanço inte- lectual e acadêmico e de agitação social, política e militar. Houve poucos avanços no que consideramos a Europa. Existe a tradição de São Cadoc3, 497 - 580 d.C., do País de Gales, que se acreditava ser capaz de prevenir ou restaurar a perda auditiva. Vários santuários em todo o País de Gales e Bretanha foram dedicados a ele. Estes se encontravam geralmente perto da água, do mar ou de uma fonte. Um exemplo é encontrado na Igreja de São Cadoc, no estuário de Etel, no sul da Bretanha, que é chamado de ‘cama de St. Cadoc’, uma grande estrutura de pedra com uma pequena cavidade em um lado no qual o suplicante aperta a cabeça e pressiona o ouvido afetado contra o leito. Outras intervenções eram derramar água, mel, etc. no ou- vido afetado e oferecer as orações apropriadas4. -
States of Matter Project Pdf
States of matter project pdf Continue Do not be confused with phase (matter). Different forms that differ in terms of the four general states of matter. From top left are solid, liquid, plasma and gas represented by the ice sculpture, a drop of water, electric arc arcs from the Tesla coil and the air around the clouds. In physics, the state of matter is one of the different forms in which matter may exist. Four states of matter are observable in everyday life: solid, liquid, gas and plasma. It is known that there are many intermediate states, such as liquid crystal, and some countries exist only in extreme conditions, such as Bose-Einstein condensates, neutron-degenerate and plasma quark-glucon, which occur only in situations of extreme cold, extreme density and extremely high energy. For a complete list of all exotic states of matter, see the list of states of matter. In the past, the distinction was made on the basis of qualitative differences in properties. Solid matter maintains a fixed volume and shape, with composite particles (atoms, molecules or ions) close to each other and fixed in place. The fabric in a state of liquid supports a fixed volume, but has a variable shape that adapts to its container. Its particles are still close to each other, but they move freely. The matter in the gaseous state has both variable volume and shape, adapting both to fit in the container. Its particles are neither close to each other nor fixed in place. Matter in the state of plasma has variable volume and shape, and contains neutral atoms, as well as a significant number of ions and electrons, both of which can move freely. -
Pharmacopoeia) in Greeco-Arabian Era : a Historical and Regulatory Perspective Mohd Akhtar Ali1, Hamiduddin2
International Journal of Human and Health Sciences Vol. 05 No. 04 October’21 Review Article Qarābādhīn (Pharmacopoeia) in Greeco-Arabian era : A Historical and Regulatory Perspective Mohd Akhtar Ali1, Hamiduddin2 Abstract Qarābādhīn can be termed as pharmacopoeia, contains compiled form of compound formulations or recipes. Importance of Qarābādhīn gradually increased and acquired an imperative status. The history of Qarābādhīn starts from Chiron, Aesculapius, Hippocrates, Dioscorides and Galen in Greco-Roman era. Many of early and medieval Islamic and Arab physicians play vital role and immense original contribution in this discipline and authored important and essential Qarābādhīn with systemic and scientific approaches. Although some of them could not reach the present day, many of the manuscripts can be found in various libraries across the world. Since the Arab Caliphates appreciated and patronized the fields of medicine acquired from Greeks and worked for its development, this period also known as “Greco-Arabic era”. In this work the evaluation of Qarābādhīn (particularly written in Arabic or Greek language) was done in historical and regulatory perspective particularly in Greek era and later on in Medieval Islamic era. The findings of the review indicate the importance and regulatory status of Qarābādhīn and provide information about it. It can be helpful to explore Qarābādhīn and related publications of Greek and Medieval Islamic Arabic period, which gives foundations for the present-day pharmacopeias. Since these documents also take into account ethical considerations, its utility in the fields of medicine and medical ethics should be investigated. Keywords: Qarābādhīn, Pharmacopoeia, Greek, Medieval Islamic Medicine, Kūnnāsh, Unani Medicine. International Journal of Human and Health Sciences Vol. -
Historical Evolution of Educational Research Methodology in Iran
RESEARCH ARTICLE Received: 8 January 2020 Accepted: 15 September 2020 Historical Evolution of Educational Research Published: 22 September 2020 Methodology in Iran 1 Associate Professor of Curriculum Studies, Malayer University, Iran (Corresponding 1 2 author). Ali Nouri , Mahmoud Mehr Mohammadi , Mohamad Sharif E-mail: [email protected] 3 4 Taherpour , Ali Asghar Khallaghi 2 Professor of Curriculum Studies, Tarbiat Modares University, Iran. Abstract: This study focuses on the significant lines of development E-mail: characterizing the history of educational research methodology in Iran. A [email protected] “historical case study” employed to collect, verify, and synthesize evidence 3Assistant Professor of Philosophy about the same as such appeared in the Quarterly Journal of Education. The of Education, Malayer University, Iran. results indicated that the educational research in Iran has experienced five, E-mail: distinct yet, overlapping and simultaneously operating historical moments. The [email protected] first is the pre-methodology (1919- 1985) stage, during which scholars carried 4Assistant Professor of Education, out their investigations without a distinct systematic scientific method. The Shahid Rajaee Teacher Training University, Iran. second (1985- 1994) is a period of rising quantitative approach, during which E-mail: [email protected] quantitative methods were becoming central in the education field. The third (1995- 2004) is characterized by insistence on the monopoly of quantitative, How to cite this article during which educational and other social science researchers relied primarily Nouri Ali, Mahmoud Mehr on quantitative methods and statistical inference understood as a means to test Mohammadi, Mohamad Sharif Taherpour, Ali Asghar Khallaghi. the proposed hypotheses. -
A Tribute to Zakariya Razi (865 – 925 AD), an Iranian Pioneer Scholar
Arch Iranian Med 2008; 11(6): 673 – 677 History of Medicine A Tribute to Zakariya Razi (865 – 925 AD), An Iranian Pioneer Scholar Houchang D. Modanlou MD•* Abstract The resurgence of Islamic Civilization in the Near Introduction East in the 7th century AD and its expansion to rom antiquity to the modern era, Persian Empire and Westward provided infectious diseases have played a opportunities of access Persian, Hellenic, and significant role in determining the course Roman writings in philosophy and medicine. Based F on their observations and experiences, Islamic of human civilization. Written records and physician-philosophers expanded upon those paleopathologic evidence reveal the lasting impact writings and at times challenged them. Among of infectious diseases caused by viruses, bacteria, these physician-philosophers admiring and spirochetes, and parasites have had on human challenging Galen was Zakariya Razi described as the greatest physician of Islam and Medieval Ages. history. At the present time, the infectious diseases A search of electronic and written materials with the greatest impact on humans in the about early Islamic Medicine was carried out developing countries are tuberculosis, malaria, and focusing on Persian physician-philosophers human immunodeficiency virus (HIV), while Zakariya Razi. sexually transmitted diseases, HIV, and Abu Bakr Mohammad Ibn Zakariya al-Razi, known nosocomial infections are among the most in the West as Rhazes, was born in 865 AD in the significant in the industrialized countries of the ancient city of Rey, Near Tehran. A musician during his youth he became an alchemist. He discovered world. alcohol and sulfuric acid. He classified substances A review of historical evidence strongly as plants, organic, and inorganic. -
Redshifts in Space Caused by Stimulated Raman Scattering in Cold Intergalactic Rydberg Matter with Experimental Verification¦ L
Journal of Experimental and Theoretical Physics, Vol. 100, No. 4, 2005, pp. 637–644. From Zhurnal Éksperimental’noÏ i TeoreticheskoÏ Fiziki, Vol. 127, No. 4, 2005, pp. 723–731. Original English Text Copyright © 2005 by Holmlid. NUCLEI, PARTICLES, FIELDS, GRAVITATION, AND ASTROPHYSICS Redshifts in Space Caused by Stimulated Raman Scattering in Cold Intergalactic Rydberg Matter with Experimental Verification¶ L. Holmlid Atmospheric Science, Department of Chemistry, Göteborg University, SE-412 96 Göteborg, Sweden e-mail: [email protected] Received September 23, 2004 Abstract—The quantized redshifts observed from galaxies in the local supercluster have recently been shown to be well described by stimulated Stokes Raman processes in intergalactic Rydberg matter (RM). The size of the quanta corresponds to transitions in the planar clusters forming the RM, of the order of 6 × 10–6 cm–1. A stimulated Stokes Raman process gives redshifts that are independent of the wavelength of the radiation, and it allows the radiation to proceed without deflection, in agreement with observation. Such redshifts must also be additive during the passage through space. Rydberg matter is common in space and explains the observed Fara- day rotation in intergalactic space and the spectroscopic signatures called unidentified infrared bands (UIBs) and diffuse interstellar bands (DIBs). Rydberg matter was also recently proposed to be baryonic dark matter. Experi- ments now show directly that IR light is redshifted by a Stokes stimulated Raman process in cold RM. Shifts of 0.02 cm–1 are regularly observed. It is shown by detailed calculations based on the experimental results that the redshifts due to Stokes scattering are of at least the same magnitude as observations.