Pengcheng Dai

Pengcheng Dai
Born
China
NationalityChinese American
Occupation(s)Experimental physicist, and academic
Academic background
EducationB.S. in physics
Ph.D. in experimental physics
Alma materZhengzhou University
University of Missouri, Columbia, Mo
Thesis (1993)
Academic work
InstitutionsRice University

Pengcheng Dai is a Chinese American experimental physicist and academic. He is the Sam and Helen Worden Professor of Physics in the Department of Physics and Astronomy at Rice University.[1]

Dai is most known for his research in the field of unconventional superconductivity and has contributed to comprehending the role of magnetic excitations in unconventional super conductors including copper, iron, and heavy fermion unconventional superconductors. He co-edited the book, Iron-based Superconductors: Materials, Properties and Mechanisms, and is the recipient of Heike Kamerlingh, Onnes Prize.[2] He also made contributions to topological spin excitations in honeycomb/kogome lattice magnets and studied spin dynamics in colossal magnetoresistance manganites.

Dai is a Fellow of the American Physical Society (APS),[3] American Association for the Advancement of Science (AAAS),[4] and Neutron Scattering Society of America (NSSA)[5] and holds an appointment as a Divisional Associate Editor at Physical Review Letters.[6]

Education

Dai received his baccalaureate degree in physics from Zhengzhou University in China. He then studied at the University of Missouri in Columbia, where he obtained his Ph.D. in Experimental Condensed Matter Physics. Later, he completed his post-doc at Oak Ridge National Laboratory (ORNL) working with Herbert A. Mook[7] and became the Staff Scientist there.[8]

Career

After serving in the Center for Neutron Scattering at ORNL as a Staff Scientist, he resumed his academic career in 2001 and was appointed as an associate professor of physics at the University of Tennessee and ORNL as a Joint Faculty. He obtained his tenure in 2003 and was then promoted to Professor in 2006. He became The Joint Institute for Advanced Materials Chair of Excellent at The University of Tennessee in 2008 and remained in that position until 2013 when he moved to Rice University. Having initially joined Rice University as a professor of physics, he now holds an appointment as the Sam and Helen Worden Professor of Physics there.[9]

Research

Dai's research primarily focuses on experimental condensed matter physics, using neutrons as a probe to study correlated electron materials. His works include direct evidence for magnetism and superconductivity coupling in unconventional superconductors, topological spin excitations in different classes of quantum materials and discoveries in the magnetic properties of cuprate and iron-based superconductors.[10]

Dai established 'Pengcheng Dai's group' at Rice University's Physics Department, which conducts research on condensed matter physics and also founded a materials growth laboratory that produces high-quality single crystals of correlated electron materials.[11]

Cuprate superconductors

In 1998, he demonstrated the incommensurate spin fluctuations in the YBa2Cu3O6+x (YBCO) system,[12] observed the resonance in underdoped YBCO and studied the effects of magnetic field on the resonance,[13] and characterized the overall energy/wave vector dependence of the magnetic excitations in YBCO.[14] Later, in 2000, he discovered one-dimensional nature of spin fluctuations.[15] He has also worked on electron-doped cuprates. He clarified the microscopic origin of the annealing process, studied the electron-magnetic excitation coupling and discovered resonance in the electron-doped high-transition-temperature superconductor Pr0.88LaCe0.12CuO4-δ.[16]

Iron-based superconductors

Over the past 15 years, along with his research group, Dai has made contributions to describe the interplay between magnetism and superconductivity and has published more than 150 papers in the field. In 2008, they determined the antiferromagnetic structure in the parent compound of one class of iron-based superconductors.[17] Afterwards, he mapped out the electronic phase diagram of these materials[18] and carried out the first spin wave measurements to determine the effective Heisenberg Hamiltonian for the parent compounds of three families of iron-based superconductors.[19] His research in 2014 led to the discovery of the first evidence for a spin nematic phase, accomplished by analyzing the evolution of overall spin excitations across the nematic phase transition temperature determined by transport measurements.[20][21] His group also developed a cleaver detwinned device that allowed systematic measurements of magnetism in iron-based superconductors in the intrinsically detwinned state.[22][23][24]

Fermion superconductors

In addition to cuprate and iron-based superconductors, Dai has worked on comprehending the interplay between magnetism and superconductivity in heavy fermion superconductors. This includes the discovery of upward dispersion in neutron resonance of CeCoIn5,[25][26] mapping of overall spin excitations in CeCu2Si2,[27] and antiferromagnetic spin fluctuations are coupled with superconductivity of spin-triplet candidate UTe2.[28] His discovery of an antiferromagnetic neutron spin resonance in spin-triplet superconductor candidate UTe2 is particularly important because it suggests that superconductivity in spin-triplet superconductors may also be driven by antiferromagnetic spin fluctuations instead of ferromagnetic spin fluctuations[29]

Awards and honors

  • 2008 – Chair of Excellence, Joint Institute of Advanced Materials (JIAM)
  • 2016 – Sustained Research Prize, Neutron Scattering Society of America (NSSA)[30]
  • 2022 – Onnes Prize, Heike Kamerlingh[2]

Bibliography

Books

  • Iron-based Superconductors: Materials, Properties and Mechanisms (2012) ISBN 978-9814303224

Selected articles

  • Dai, P., Mook, H. A., Hayden, S. M., Aeppli, G., Perring, T. G., Hunt, R. D., & Doğan, F. (1999). The magnetic excitation spectrum and thermodynamics of high-T c superconductors. Science, 284(5418), 1344–1347.
  • Dai, P., Mook, H. A., Aeppli, G., Hayden, S. M., & Doğan, F. (2000). Resonance as a measure of pairing correlations in the high-T c superconductor YBa2Cu3O6. 6. Nature, 406(6799), 965–968.
  • Dai, P. (2015). Antiferromagnetic order and spin dynamics in iron-based superconductors. Reviews of Modern Physics, 87(3), 855.
  • Chen, T., Chen, Y., Kreisel, A., Lu, X., Schneidewind, A., Qiu, Y., ... & Dai, P. (2019). Anisotropic spin fluctuations in detwinned FeSe. Nature materials, 18(7), 709–716.
  • Duan, C., Baumbach, R. E., Podlesnyak, A., Deng, Y., Moir, C., Breindel, A. J., ... & Dai, P. (2021). Resonance from antiferromagnetic spin fluctuations for superconductivity in UTe2. Nature, 600(7890), 636–640.
  • Teng, X., Chen, L., Ye, F., Rosenberg, E., Liu, Z., Yin, J. X., ... & Dai, P. (2022). Discovery of charge density wave in a kagome lattice antiferromagnet. Nature, 609(7927), 490–495.

References

  1. ^ "Pengcheng Dai | Faculty | The People of Rice | Rice University". profiles.rice.edu.
  2. ^ a b "The Heike Kamerlingh Onnes Prize".
  3. ^ "APS Fellow Archive". www.aps.org.
  4. ^ "Dr. Pengcheng Dai Elected AAAS Fellow" (PDF).
  5. ^ "NSSA Fellows". neutronscattering.org.
  6. ^ "PRL Editorial Team". Physical Review Letters. September 20, 2022.
  7. ^ "Herb Mook: Good taste in problems".
  8. ^ "Pengcheng Dai | Rice Center for Quantum Materials | Rice University". rcqm.rice.edu.
  9. ^ "University of Chinese Academy of Sciences".
  10. ^ "Pengcheng Dai: H-index & Awards - Academic Profile". Research.com.
  11. ^ "Pengcheng Dai's Group". pdai.phys.rice.edu.
  12. ^ Mook, H. A.; Dai, Pengcheng; Hayden, S. M.; Aeppli, G.; Perring, T. G.; Doğan, F. (October 17, 1998). "Spin fluctuations in YBa2Cu3O6.6". Nature. 395 (6702): 580–582. Bibcode:1998Natur.395..580M. doi:10.1038/26931. S2CID 4426153 – via www.nature.com.
  13. ^ Dai, Pengcheng; Mook, H. A.; Aeppli, G.; Hayden, S. M.; Doğan, F. (August 17, 2000). "Resonance as a measure of pairing correlations in the high-Tc superconductor YBa2Cu3O6.6". Nature. 406 (6799): 965–968. arXiv:cond-mat/0006433. Bibcode:2000Natur.406..965D. doi:10.1038/35023094. PMID 10984044. S2CID 14247449 – via www.nature.com.
  14. ^ Dai, Pengcheng; Mook, H. A.; Hayden, S. M.; Aeppli, G.; Perring, T. G.; Hunt, R. D.; Doğan, F. (May 21, 1999). "The Magnetic Excitation Spectrum and Thermodynamics of High- T c Superconductors". Science. 284 (5418): 1344–1347. arXiv:cond-mat/0001249. Bibcode:1999Sci...284.1344D. doi:10.1126/science.284.5418.1344. PMID 10334986. S2CID 16356096.
  15. ^ Mook, H. A.; Dai, Pengcheng; Dogan, F.; Hunt, R. D. (April 17, 2000). "One-dimensional nature of the magnetic fluctuations in YBa2Cu 3O6.6". Nature. 404 (6779): 729–731. arXiv:cond-mat/0004362. Bibcode:2000Natur.404..729M. doi:10.1038/35008005. PMID 10783878. S2CID 4348657 – via www.nature.com.
  16. ^ Wilson, Stephen D.; Dai, Pengcheng; Li, Shiliang; Chi, Songxue; Kang, H. J.; Lynn, J. W. (July 17, 2006). "Resonance in the electron-doped high-transition-temperature superconductor Pr0.88LaCe0.12CuO4-δ". Nature. 442 (7098): 59–62. arXiv:cond-mat/0607134. Bibcode:2006Natur.442...59W. doi:10.1038/nature04857. PMID 16823448. S2CID 204931592 – via www.nature.com.
  17. ^ de la Cruz, Clarina; Huang, Q.; Lynn, J. W.; Li, Jiying; Ii, W. Ratcliff; Zarestky, J. L.; Mook, H. A.; Chen, G. F.; Luo, J. L.; Wang, N. L.; Dai, Pengcheng (June 17, 2008). "Magnetic order close to superconductivity in the iron-based layered LaO1-xF x FeAs systems". Nature. 453 (7197): 899–902. arXiv:0804.0795. Bibcode:2008Natur.453..899D. doi:10.1038/nature07057. PMID 18509333. S2CID 4427215 – via www.nature.com.
  18. ^ Zhao, Jun; Huang, Q.; de la Cruz, Clarina; Li, Shiliang; Lynn, J. W.; Chen, Y.; Green, M. A.; Chen, G. F.; Li, G.; Li, Z.; Luo, J. L.; Wang, N. L.; Dai, Pengcheng (December 17, 2008). "Structural and magnetic phase diagram of CeFeAsO1− xFx and its relation to high-temperature superconductivity". Nature Materials. 7 (12): 953–959. arXiv:0806.2528. Bibcode:2008NatMa...7..953Z. doi:10.1038/nmat2315. PMID 18953342. S2CID 25937023 – via www.nature.com.
  19. ^ Zhao, Jun; Adroja, D. T.; Yao, Dao-Xin; Bewley, R.; Li, Shiliang; Wang, X. F.; Wu, G.; Chen, X. H.; Hu, Jiangping; Dai, Pengcheng (August 17, 2009). "Spin waves and magnetic exchange interactions in CaFe2As2". Nature Physics. 5 (8): 555–560. arXiv:0903.2686. Bibcode:2009NatPh...5..555Z. doi:10.1038/nphys1336. S2CID 56035502 – via www.nature.com.
  20. ^ Chu, Jiun-Haw; Analytis, James G.; De Greve, Kristiaan; McMahon, Peter L.; Islam, Zahirul; Yamamoto, Yoshihisa; Fisher, Ian R. (2010). "In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor". Science. 329 (5993): 824–826. arXiv:1002.3364. Bibcode:2010Sci...329..824C. doi:10.1126/science.1190482. PMID 20705856. S2CID 119266241.
  21. ^ Lu, Xingye; Park, J. T.; Zhang, Rui; Luo, Huiqian; Nevidomskyy, Andriy H.; Si, Qimiao; Dai, Pengcheng (August 8, 2014). "Nematic spin correlations in the tetragonal state of uniaxial-strained BaFe 2− x Ni x As 2". Science. 345 (6197): 657–660. arXiv:1408.2756. Bibcode:2014Sci...345..657L. doi:10.1126/science.1251853. PMID 25081483. S2CID 786636.
  22. ^ "Spin Waves in Detwinned ${\mathrm{BaFe". PMID 30141678. S2CID 52075558. {{cite journal}}: Cite journal requires |journal= (help)_{2}{\mathrm{As}}_{2}$|first1=Xingye|last1=Lu|first2=Daniel D.|last2=Scherer|first3=David W.|last3=Tam|first4=Wenliang|last4=Zhang|first5=Rui|last5=Zhang|first6=Huiqian|last6=Luo|first7=Leland W.|last7=Harriger|first8=H. C.|last8=Walker|first9=D. T.|last9=Adroja|first10=Brian M.|last10=Andersen|first11=Pengcheng|last11=Dai|date=August 8, 2018|journal=Physical Review Letters|volume=121|issue=6|pages=067002|via=APS|doi=10.1103/PhysRevLett.121.067002}}
  23. ^ Chen, Tong; Chen, Youzhe; Kreisel, Andreas; Lu, Xingye; Schneidewind, Astrid; Qiu, Yiming; Park, J. T.; Perring, Toby G.; Stewart, J. Ross; Cao, Huibo; Zhang, Rui; Li, Yu; Rong, Yan; Wei, Yuan; Andersen, Brian M.; Hirschfeld, P. J.; Broholm, Collin; Dai, Pengcheng (July 17, 2019). "Anisotropic spin fluctuations in detwinned FeSe". Nature Materials. 18 (7): 709–716. arXiv:1905.08399. Bibcode:2019NatMa..18..709C. doi:10.1038/s41563-019-0369-5. PMC 7895486. PMID 31110345.
  24. ^ Liu, Panpan; Klemm, Mason L.; Tian, Long; Lu, Xingye; Song, Yu; Tam, David W.; Schmalzl, Karin; Park, J. T.; Li, Yu; Tan, Guotai; Su, Yixi; Bourdarot, Frédéric; Zhao, Yang; Lynn, Jeffery W.; Birgeneau, Robert J.; Dai, Pengcheng (November 12, 2020). "In-plane uniaxial pressure-induced out-of-plane antiferromagnetic moment and critical fluctuations in BaFe2As2". Nature Communications. 11 (1): 5728. arXiv:2009.04339. Bibcode:2020NatCo..11.5728L. doi:10.1038/s41467-020-19421-5. PMC 7665052. PMID 33184278.
  25. ^ Song, Yu; Van Dyke, John; Lum, I. K.; White, B. D.; Jang, Sooyoung; Yazici, Duygu; Shu, L.; Schneidewind, A.; Čermák, Petr; Qiu, Y.; Maple, M. B.; Morr, Dirk K.; Dai, Pengcheng (September 28, 2016). "Robust upward dispersion of the neutron spin resonance in the heavy fermion superconductor Ce1−xYbxCoIn5". Nature Communications. 7 (1): 12774. arXiv:1607.05326. Bibcode:2016NatCo...712774S. doi:10.1038/ncomms12774. PMC 5052703. PMID 27677397.
  26. ^ Song, Yu; Wang, Weiyi; S. Van Dyke, John; Pouse, Naveen; Ran, Sheng; Yazici, Duygu; Schneidewind, A.; Čermák, Petr; Qiu, Y.; Maple, M. B.; Morr, Dirk K.; Dai, Pengcheng (May 29, 2020). "Nature of the spin resonance mode in CeCoIn5". Communications Physics. 3 (1): 98. arXiv:2005.08441. Bibcode:2020CmPhy...3...98S. doi:10.1038/s42005-020-0365-8. PMID 33655080. S2CID 218674357 – via www.nature.com.
  27. ^ Song, Yu; Wang, Weiyi; Cao, Chongde; Yamani, Zahra; Xu, Yuanji; Sheng, Yutao; Löser, Wolfgang; Qiu, Yiming; Yang, Yi-feng; Birgeneau, Robert J.; Dai, Pengcheng (June 18, 2021). "High-energy magnetic excitations from heavy quasiparticles in CeCu2Si2". npj Quantum Materials. 6 (1): 60. arXiv:2105.00387. Bibcode:2021npjQM...6...60S. doi:10.1038/s41535-021-00358-x. S2CID 256726839 – via www.nature.com.
  28. ^ Duan, Chunruo; Baumbach, R. E.; Podlesnyak, Andrey; Deng, Yuhang; Moir, Camilla; Breindel, Alexander J.; Maple, M. Brian; Nica, E. M.; Si, Qimiao; Dai, Pengcheng (December 23, 2021). "Resonance from antiferromagnetic spin fluctuations for superconductivity in UTe$_2$". Nature. 600 (7890): 636–640. arXiv:2106.14424. Bibcode:2021Natur.600..636D. doi:10.1038/s41586-021-04151-5. PMID 34937893. S2CID 245425198.
  29. ^ Duan, C.; Sasmal, K.; Maple, M. B.; Podlesnyak, A.; Zhu, J. X.; Si, Q.; Dai, P. "Incommensurate Spin Fluctuations in the Spin-Triplet Superconductor Candidate ${\mathrm{UTe": 237003. arXiv:2008.12377. PMID 33337176. S2CID 221370671. {{cite journal}}: Cite journal requires |journal= (help)_{2}$|first1=Chunruo|last1=Duan|first2=Kalyan|last2=Sasmal|first3=M. Brian|last3=Maple|first4=Andrey|last4=Podlesnyak|first5=Jian-Xin|last5=Zhu|first6=Qimiao|last6=Si|first7=Pengcheng|last7=Dai|date=December 1, 2020|journal=Physical Review Letters|volume=125|issue=23|pages=237003|via=APS|doi=10.1103/PhysRevLett.125.237003}}
  30. ^ "NSSA Sustained Research Prize". neutronscattering.org.

Read other articles:

List of characters in The Witcher series

List of characters in The Witcher series This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (May 2011) (Learn how and when to remove this template message) This list is incomplete; you can help by adding missing items. (December 2022) The fictional universe of The Witcher Saga was created by Polish writer Andrzej Sapkowski. The following is a list of notable char...

 

MBB Bo 105

Messerschmitt-Bölkow-Blohm Bo 105 adalah sebuah helikopter ringan, serbaguna, bermesin ganda, yang dibuat oleh Bölkow dari Stuttgart,Jerman. Produksi dilanjutkan oleh Messerschmitt-Bölkow-Blohm (MBB) yang menjadi bagian dari Airbus Helicopters. Eurocopter memproduksi Bo 105 sampai 1997. Jalur produksi Bo 105 kemudian digantikan jalur produksi EC 135. Fasilitas produksi utama untuk memproduksi Bo 105 berada di Jerman dan Kanada; karena tingkat penjualan ekspor yang dihadapi, manufaktur bar...

 

Terminal Kampung Rambutan

Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber: Terminal Kampung Rambutan – berita · surat kabar · buku · cendekiawan · JSTORTerminal Kampung RambutanTerminal busLokasiRambutan, Ciracas, Kota Jakarta Timur, Daerah Khusus Ibukota Jakarta Indonesia...

Play (compagnie aérienne)

Play Codes IATAOACIIndicatif d'appel OG FPY PLAYER Repères historiques Date de création Juillet 2019 Dates clés 2021 : début des vols Fondateur Arnar Már Magnússon Sveinn Ingi Steinþórsson Généralités Basée à Aéroport international de Keflavik Taille de la flotte 10 (été 2023) Nombre de destinations 25 Siège social Islande Dirigeants Birgir Jónsson Arnar Magnússon Daníel Snæbjörnsson Georg Haraldsson Jónína Guðmundsdóttir Þóra Eggertsdóttir Site web flyplay....

 

Loisaida

Artikel ini membutuhkan rujukan tambahan agar kualitasnya dapat dipastikan. Mohon bantu kami mengembangkan artikel ini dengan cara menambahkan rujukan ke sumber tepercaya. Pernyataan tak bersumber bisa saja dipertentangkan dan dihapus.Cari sumber: Loisaida – berita · surat kabar · buku · cendekiawan · JSTOR (Desember 2008) Loisaida berusaha mempertahankan budaya Puerto Riko-nya dari kenaikan harga sewa dan gentrifikasi. Loisaida (pengucapan bahasa Ingg...

 

Filippo Romagna

Italian footballer (born 1997) Filippo Romagna Romagna plays with Cagliari in 2017Personal informationDate of birth (1997-05-26) 26 May 1997 (age 26)Place of birth Fano, ItalyHeight 1.86 m (6 ft 1 in)[1]Position(s) Centre backTeam informationCurrent team Reggiana(on loan from Sassuolo)Number 19Youth career Fanella2007–2011 Rimini2011–2016 JuventusSenior career*Years Team Apps (Gls)2016–2017 Juventus 0 (0)2016–2017 → Novara (loan) 4 (0)2017 → Brescia (lo...

Tight oil

Light crude oil in petroleum-bearing formations Tight oil (also known as shale oil, shale-hosted oil or light tight oil, abbreviated LTO) is light crude oil contained in unconventional petroleum-bearing formations of low permeability, often shale or tight sandstone.[1] Economic production from tight oil formations requires the same hydraulic fracturing and often uses the same horizontal well technology used in the production of shale gas. While sometimes called shale oil, tight oil sh...

 

Chavo Guerrero Jr.

American professional wrestler Chavo Guerrero redirects here. For his father, see Chavo Guerrero Sr. Chavo Guerrero Jr.Guerrero in 2016Birth nameSalvador Guerrero IVBorn (1970-10-20) October 20, 1970 (age 53)[1]El Paso, Texas, U.S.[2][3]Spouse(s) Shari Guerrero ​(m. 1998)​Children2FamilyGuerreroProfessional wrestling careerRing name(s)Chavo Guerrero Jr.[2][3]Chavo Guerrero[4]Kerwin White[5]Lieutenant Loc...

 

Rodeway Inn

Economy hotel chain run by Choice Hotels Rodeway InnCompany typeBrand of Choice HotelsIndustryHotelsFounded1962FoundersMichael Robinson Joe SimmonsHeadquartersPhoenix, Arizona, U.S.Number of locations578 (June 30, 2020)[1]Area servedUnited States, CanadaKey peopleRandy Pratt ownerProductsMotelOwnerChoice HotelsWebsitewww.choicehotels.com/rodeway-inn Rodeway Inn is a chain of economy-priced hotels in the United States and Canada. Founded by Michael Robinson in 1962, the franchise is no...

The Monkey Talks

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada November 2022. The Monkey TalksSutradaraRaoul WalshSkenarioRené Fauchois (sandiwara)Malcolm Stuart BoylanElizabeth Pickett ChevalierPemeranOlive BordenJacques LernerDon AlvaradoMalcolm WaiteRaymond HitchcockTed McNamaraSinematograferL. William O'ConnellPenyuntingRo...

 

Metropolitan Museum of Art

Art museum in New York City Not to be confused with the Museum of Modern Art. The Metropolitan Museum of ArtEntrance façades to The Met Fifth Avenue and The CloistersEstablishedApril 13, 1870; 154 years ago (April 13, 1870)[2][3][4]Location1000 Fifth Avenue (The Met Fifth Avenue)99 Margaret Corbin Drive (The Cloisters)New York City, U.S.Coordinates40°46′46″N 73°57′47″W / 40.7794°N 73.9631°W / 40.7794; -73.9631TypeArt mu...

 

Tikus osgood

Tikus Osgood Rattus osgoodi Status konservasiRisiko rendahIUCN19355 TaksonomiKladEugnathostomataMegaclassOsteichthyesSuperkelasSarcopterygiiKladDipnotetrapodomorphaKladTetrapodomorphaOrdoEotetrapodiformesInfrakelasElpistostegaliaKladStegocephaliaSuperkelasTetrapodaKladReptiliomorphaKladAmniotaKladSynapsidaKladEupelycosauriaKladMetopophoraKladHaptodontiformesKladSphenacomorphaKladSphenacodontiaKladPantherapsidaKladSphenacodontoideaKladTherapsidaKladTheriodontiaKladEutheriodontiaKladCynodontiaK...

Seal of Louisiana

Official government emblem of the U.S. state of Louisiana Great Seal of the State of LouisianaVersionsHistorical coat of arms (1876) ArmigerState of LouisianaAdopted2006MottoUnion, Justice, ConfidenceEarlier version(s)1812, 1902 The Seal of Louisiana (French: Sceau de la Louisiane) is the official government emblem of the U.S. state of Louisiana. Originally devised in 1812, the latest version was enacted in 2006. History Following the Louisiana Purchase in 1803, the area that would later comp...

 

مساحة الدائرة

جزء من سلسلة مقالات حولالهندسة الرياضية اللمحة العامة [الإنجليزية]التاريخ الفروع إقليدية لاإقليدية إهليلجية كروية زائدية لاأرخميدية [الإنجليزية] إسقاطية نسبية تركيبية تحليلية جبرية حسابية ديوفانتية تفاضلية ريمانية هندسة تماسكية عقدية منتهية متقطعة رياضية رقمية محدبة �...

 

University railway station (Northern Ireland)

UniversityNIR Class 80 train at University station in 1979General informationLocationColeraineNorthern IrelandCoordinates55°09′02″N 6°40′06″W / 55.15056°N 6.66833°W / 55.15056; -6.66833Owned byNI RailwaysOperated byNI RailwaysPlatforms1Tracks1ConstructionStructure typeAt-gradeKey dates1968Station openedPassengers2022/23108,396 [1]2023/24 121,621 [2] NI Railways Translink NI railway stations LocationUniversityLocation within Northern Ireland...

Burlington Resources

Burlington ResourcesJenisSubsidiariIndustriPenghasil minyakDidirikan1988KantorpusatHouston, TexasTokohkunciBobby S. Shackouls, Presiden & CEOProdukProduk petrokimiaPendapatan$1.5 miliar USD (2005)Karyawan2200 2005Situs webBR-Inc Burlington Resources, merupakan sebuah perusahaan minyak dan bahan bakar Amerika Serikat. Kantor pusatnya terletak di Houston, Texas. Berbasis di Houston, Texas, BR memiliki kantor cabang di Calgary, London, Farmington, Midland dan Fort Worth. Setelah penggabungan...

 

Old Santeclaus with Much Delight

Anonymous 1821 Christmas poem Illustration to verse 1 Illustration to verse 2 Old Santeclaus with Much Delight is an anonymous illustrated children's poem published in New York in 1821, predating by two years the first publication of A Visit from St. Nicholas (Twas the Night before Christmas). It is the first publication to mention (and illustrate) Santa Claus's reindeer and his sleigh, as well as being the first to describe his arrival on Christmas Eve. The accompanying illustrations are the...

 

ベトナム戦争

この記事には複数の問題があります。改善やノートページでの議論にご協力ください。 出典がまったく示されていないか不十分です。内容に関する文献や情報源が必要です。（2022年8月） 中立的な観点に基づく疑問が提出されています。（2022年8月）出典検索?: ベトナム戦争 – ニュース · 書籍 · スカラー · CiNii · J-STAGE · NDL · dlib.jp&#...

Mercedes-Benz Classe A

Pour les articles homonymes, voir Classe A. Pour un article plus général, voir Liste des véhicules chez Mercedes-Benz. Les Mercedes-Benz Classe A. La Mercedes-Benz Classe A est une gamme d'automobiles du constructeur allemand Mercedes-Benz. La première génération est lancée en 1997 (Type 168) puis une seconde en 2004 (Type 169), renouvelée en 2012 (Type 176) et enfin une quatrième en 2018 (Type 177). Les deux premières générations correspondaient à une citadine dont le plancher ...

 

Johann Christian Bach

German composer (1735–1782) JC Bach redirects here. For his relative with the same initials, see Johann Christoph Bach. Johann Christian BachJohann Christian Bach, 1776Born(1735-09-05)5 September 1735LeipzigDied1 January 1782(1782-01-01) (aged 46)LondonParents Johann Sebastian Bach (father) Anna Magdalena Bach (mother) Johann Christian Bach (5 September 1735 – 1 January 1782) was a German composer of the Classical era, the youngest son of Johann Sebastian Bach.[1] He rece...