manifestation_id original_title title_alternative title_transcription statement_of_responsibility manifestation_identifier creator contributor publisher date_of_publication pub_date year_of_publication publication_place manifestation_created_at manifestation_updated_at carrier_type content_type frequency language isbn issn doi jpno ncid lccn iss_itemno volume_number volume_number_string edition edition_string issue_number issue_number_string serial_number extent start_page end_page dimensions height width depth manifestation_price access_address manifestation_required_role abstract description identifier:unknown identifier:nbn identifier:isbn10 identifier:iss_itemno identifier:online_isbn identifier:print_isbn identifier:print_issn identifier:online_issn identifier:escidoc identifier:nims series_statement_id series_statement_original_title series_statement_title_subseries series_statement_title_subseries_transcription series_statement_title_transcription series_statement_creator series_statement_volume_number series_statement_series_master series_statement_root_manifestation_id series_statement_manifestation_id series_statement_position series_statement_note series_statement_created_at series_statement_updated_at subject:ndlsh subject:unknown subject:bsh classification:ndc8 classification:ndc9 classification:udc item_id item_identifier binding_item_identifier call_number library shelf item_note accepted_at acquired_at item_created_at item_updated_at 103313 ファイバフューズ現象とその回避技術 "" "" "" 2010-03-05 00:00:00 +0900 2010-03-05 2010 2015-05-28 18:03:16 +0900 2023-07-31 14:20:18 +0900 online_resource text unknown Japanese "" "" https://hdl.handle.net/20.500.11932/374984 Guest 1987年に発見されたファイバフューズ現象は、約20年の潜伏期間を経て、光通信業界を現実的な脅威にさらしつつある。シリカガラス製単一モード光ファイバに数Wの光エネルギーを注入した上で、回線の一部を局所的に加熱すると、コア部分に閉じ込められたプラズマが発生し、光源に向かって走りながら光ファイバを破壊していく。この現象の対策無しには、光通信伝送容量の需要増大を、光信号の多重化で解決することはできない。本講演では、近年盛んになってきたこの現象に対する研究とその回避技術開発を概観する。 "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" fiber fuse//fiber fuse//fiber fuse "" "" "" "" 95909 web web 2023-07-31 14:20:18 +0900 2023-07-31 14:20:18 +0900 103310 Fiber Fuse: its Actions, Behaviors and Control methods "" "" "" 2010-04-14 00:00:00 +0900 2010-04-14 2010 2015-05-28 18:03:15 +0900 2023-07-31 14:27:47 +0900 online_resource text unknown English "" "" https://hdl.handle.net/20.500.11932/408451 Guest "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" fiber fuse//fiber fuse//fiber fuse "" "" "" "" 97299 web web 2023-07-31 14:27:47 +0900 2023-07-31 14:27:47 +0900 103308 A Novel Boron-rich Scandium Borocarbosilicide; Sc0.83-xB10.0-yC0.17+ySi0.083-z (x=0.030, y=0.36 and z=0.026): Floating Zone Crystal Growth and Structure Analysis "" "" "" 2002-04-22 00:00:00 +0900 2002-04-22 2002 2015-05-28 18:03:14 +0900 2023-07-31 14:21:54 +0900 online_resource text unknown unknown "" "" 148 158 https://hdl.handle.net/20.500.11932/457944 Guest "Single crystals of a novel boron-rich scandium borocarbosilicide Sc0.83-xB10.0-yC0.17+ySi0.083-z were grown by the floating zone method using a four-xenon lamp mirror-type image furnace. Structure analysis using single-crystal X-ray diffraction data showed that Sc0.83-xB10.0-yC0.17+ySi0.083-z has a face centered cubic with lattice constant a=2.03085 nm and space group of F4-3m. The crystal composition calculated from the structure analysis was ScB12.0C0.65Si0.071 which agreed with the measured composition of ScB12.7C0.62Si0.08. In the crystal structure which is a new structure type of boron-rich borides, there are three structurally independent B12 icosahedra I(1), I(2) and I(3) and one B10 polyhedron which interconnect each other to form a three-dimensional boron framework. There are four fully occupied bridging sites, one is the C site and the other three sites are occupied statistically by B or C. The Sc atoms reside in three interstitial sites of the boron framework. Two Si sites are tetrahedrally surrounded by the bridging carbon sites and by the bridging boron/carbon mixed occupation sites, respectively. The boron framework structure can be understood more easily by introducing larger structure units, they are a super tetrahedra T(1) made up by four icosahedra I(1), a super tetrahedra T(2) made up by four icosahedra I(2) and a super octahedra O(1) made up by six icosahedra I(3)." "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" Sc0.83-xB10.0-yC0.17+ySi0.083-z ; boron-rich scandium borocarbosilicide; floating zone crystal growth; single-crystal structure analysis; face-centered cubic structure; B10 polyhedron; B12 icosahedron//Sc0.83-xB10.0-yC0.17+ySi0.083-z ; boron-rich scandium borocarbosilicide; floating zone crystal growth; single-crystal structure analysis; face-centered cubic structure; B10 polyhedron; B12 icosahedron//Sc0.83-xB10.0-yC0.17+ySi0.083-z ; boron-rich scandium borocarbosilicide; floating zone crystal growth; single-crystal structure analysis; face-centered cubic structure; B10 polyhedron; B12 icosahedron "" "" "" "" 96210 web web 2023-07-31 14:21:54 +0900 2023-07-31 14:21:54 +0900 103309 高校生に「光ファイバー通信の父」がノーベル賞を貰った理由を説明するには "" "" "" 2009-11-25 00:00:00 +0900 2009-11-25 2009 2015-05-28 18:03:14 +0900 2023-07-31 14:50:40 +0900 online_resource text unknown Japanese "" "" 69 70 https://hdl.handle.net/20.500.11932/174876 Guest 高校生の見学対応を引き受けた折に、今年のノーベル物理学賞はチャールズ・カオ教授に贈られるというニュースが飛び込んできた。高校一年生である彼らにその意味を分かってもらうために、光ファイバの歴史と日本の技術者の貢献を語り、レーザーポインタを活用したデモンストレーションを行った。 "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" Nobel prizes//optical fiber//Charles Kao//Nobel prizes//optical fiber//Charles Kao//Nobel prizes//optical fiber//Charles Kao "" "" "" "" 101559 web web 2023-07-31 14:50:40 +0900 2023-07-31 14:50:40 +0900 103307 Peritectic melting behavior of beta-boron at the boron end side of B-C binary phase diagram "" "" "" 2010-06-14 00:00:00 +0900 2010-06-14 2010 2015-05-28 18:03:13 +0900 2023-07-31 14:24:04 +0900 online_resource text unknown unknown "" "" https://hdl.handle.net/20.500.11932/457939 Guest "Melting behavior of beta-boron at the boron-end side of the B-C binary phase diagram was investigated by floating zone method. The result indicated that beta-boron peritectically melts by addition of carbon. Partition coefficient of carbon is ≈2.6. " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" melting behavior of beta-boron//B-C binary phase diagram//boron-end side//peritectic melting//floating zone method//melting behavior of beta-boron//B-C binary phase diagram//boron-end side//peritectic melting//floating zone method//melting behavior of beta-boron//B-C binary phase diagram//boron-end side//peritectic melting//floating zone method "" "" "" "" 96612 web web 2023-07-31 14:24:04 +0900 2023-07-31 14:24:04 +0900 103306 Vanadium doping in YB44Si1.0 "" "" "" 2010-06-14 00:00:00 +0900 2010-06-14 2010 2015-05-28 18:03:13 +0900 2023-07-31 14:23:51 +0900 online_resource text unknown unknown "" "" https://hdl.handle.net/20.500.11932/457941 Guest "Vanadium doping in yttrium boron-rich boride; YB44Si1.0, is investigated. Vanadium atoms occupy two sites. First, newly discovered site with site occupancy of approximately 3% is far from yttrium atoms and is coordinated ""tetrahedrally"" by three boron icosahedra and one B12Si3 polyhedron. Another is Si/V mixed-occupation site with site occupancy of ~ 63/6.2 %; it is close to yttrium atoms and is tetrahedrally coordinated by four boron icosahedra. Chemical formula determined from the structure analysis is Y0.96V0.062B41.2Si0.93. Magnetic susceptibility of V-doped YB44Si1.0 was measured from 2 K to 300 K. The vanadium doping in YB44Si1.0 did not result in superconductivity." "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" yttrium boron-rich boride//YB44Si1.0//Vanadium doping//boron icosahedron//yttrium boron-rich boride//YB44Si1.0//Vanadium doping//boron icosahedron//yttrium boron-rich boride//YB44Si1.0//Vanadium doping//boron icosahedron "" "" "" "" 96572 web web 2023-07-31 14:23:51 +0900 2023-07-31 14:23:51 +0900 103304 野焼きの炎とファイバフューズの共通点 "" "" "" 2010-02-25 00:00:00 +0900 2010-02-25 2010 2015-05-28 18:03:12 +0900 2023-07-31 14:45:40 +0900 online_resource text unknown Japanese "" "" 74 75 https://hdl.handle.net/20.500.11932/399913 Guest どちらも「散逸ソリトン」として記述できる現象である。エネルギーを取り込んで周囲に発散させる存在が伝搬していくのである。津波に代表される古典的なソリトンとは異なるこの概念の源流をたどると、プリコジンが提唱した「散逸構造」へとたどり着く。 "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" fiber fuse//dissipative soliton//fiber fuse//dissipative soliton//fiber fuse//dissipative soliton "" "" "" "" 100631 web web 2023-07-31 14:45:40 +0900 2023-07-31 14:45:40 +0900 103305 研究者の立場からオープンアクセスをどう捉えるか "" "" "" 2010-07-21 00:00:00 +0900 2010-07-21 2010 2015-05-28 18:03:12 +0900 2023-07-31 14:24:53 +0900 online_resource text unknown Japanese "" "" https://hdl.handle.net/20.500.11932/468625 Guest "論文をできるだけ多くの人に読んでもらいたい。2000年代半ばに出版した講演者の2種類の論文(片方だけがオープンアクセス)が広く認知されるに至るまでの経緯を紹介し、研究者がオープンアクセス出版を選択する基準を考える。その鍵は、「届けたい読者層からの発見され易さをどう確保するか」であり、講演者の場合セルフアーカイビングの併用がその目的達成を支援した。 " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" open access//self-archiving//open access//self-archiving//open access//self-archiving "" "" "" "" 96759 web web 2023-07-31 14:24:53 +0900 2023-07-31 14:24:53 +0900 103300 与えよ、さらば求められん: セルフアーカイビングによる成果発信非局在化のすすめ "" "" "" 2010-09-17 00:00:00 +0900 2010-09-17 2010 2015-05-28 18:03:10 +0900 2023-07-31 14:53:09 +0900 online_resource text unknown Japanese "" "" https://hdl.handle.net/20.500.11932/521963 Guest 筆者の原著論文へのアクセスが、関連素材(ビデオや和訳など)のセルフアーカイビングによって増加したことを示し、その具体的な方法を概観する。インターネットの高度な発達によって学術情報流通のあり方が変質してきている現在、研究成果を分かり易くプレゼンテーションする技術が益々重要になってきている。 "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" Self-archiving//Open access//Presentation//Self-archiving//Open access//Presentation//Self-archiving//Open access//Presentation "" "" "" "" 102023 web web 2023-07-31 14:53:09 +0900 2023-07-31 14:53:09 +0900 103297 フリーソフトウエアが学術論文の読者像をあぶり出す "" "" "" 2010-04-25 00:00:00 +0900 2010-04-25 2010 2015-05-28 18:03:08 +0900 2023-07-31 14:49:01 +0900 online_resource text unknown Japanese "" "" 118 119 https://hdl.handle.net/20.500.11932/436107 Guest 学術論文の反響を見積る尺度として、引用数とは別の視点を提供するものが産声をあげた。フリーで使える文献管理ソフトウエアを使ってユーザーが登録した論文の利用ランキングが公開されているのだ。信頼できる尺度に成長するか否かは、ユーザー層の拡大と成熟に掛かっている。 "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" mendeley//document management software//mendeley//document management software//mendeley//document management software "" "" "" "" 101255 web web 2023-07-31 14:49:01 +0900 2023-07-31 14:49:01 +0900