CiNii Articles - Absorption Coefficient

1

Asymmetrical Recoil of an Atom with an Optical Absorption Coefficient Depending on the Incident Direction

Inui Norio

Journal of the Physical Society of Japan 90(2), 024706-024706, 2021-02-15

DOI
2

Evaluation of Sound Absorption Coefficient by Numerical Analysis of an Acoustic Liner with Glazing Flow [in Japanese]

榎本俊治 , 石井達哉 , ENOMOTO Shunji , ISHII Tatsuya

流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン (2020年9月28日-30日. 日本航空宇宙学会 : 宇宙航空研究開発機構(JAXA)オンライン会議)形態: カラー図版あり資料番号: AA2030013002レポート番号: JAXA-SP-20-008

宇宙航空研究開発機構特別資料: 流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン論文集 = JAXA Special Publication: Proceedings of Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2020 Online (JAXA-SP-20-008), 11-18, 2021-02-08

IR
3

Basic Research for Solar-Pumping Fiber Amplifiers

Kawano Yuhki , Oda Masaki , Baba Naoto , Takimoto Kazuya , Furuse Hiroaki , Nakamura Shinki , Sone Hiroyasu

… First, absorption properties of erbium-doped fiber (EDF) in the visible light wavelength region were investigated. … Results show that the absorption coefficient <i>α</i> …

IEEJ Transactions on Electronics, Information and Systems 141(2), 237-241, 2021

J-STAGE
4

Basic study of Zn measurement using the reagent 'Espa-Zn II': Performance evaluation of zinc measurement reagent [in Japanese]

TATEISHI Wataru , UKEDA Kaname , MACHIDA Satoshi , TSUBOI Isami

<p>当社では亜鉛測定を原子吸光分光光度法にて行っているが，酢酸亜鉛製剤の適用拡大に伴い検体数が増え，対応法を検討する必要がある。そこで，検体の処理能力の高い汎用生化学自動分析機用の比色法を測定原理とした「エスパ・Zn II」の基礎的検討を行い，日常の検査に適用可能か確認した。その結果，再現性（同時再現性および日差再現性）は変動係数3.0%以内，検出限界は4.19 μg/dL，希釈直線 …

Japanese Journal of Medical Technology 70(1), 80-85, 2021

J-STAGE
5

Investigation of the Excitation Wavelength for Extension of Diagnostic Depth in 5-aminolevulinic Acid-based Photodynamic Diagnosis of Bladder Cancer [in Japanese]

Takishima Hiroki , Ihara Daisuke , Nishimura Takahiro , Hazama Hisanao , Awazu Kunio

<p>膀胱癌に対するアミノレブリン酸光線力学診断（5-aminolevulinic acid-based photodynamic diagnosis: ALA-PDD）における診断深度の励起光波長の選択による拡張を検証した．膀胱組織中の光減衰とプロトポルフィリンIXの光吸収特性に基づく理論計算で，腫瘍の深さが0.9 mm以深では波長505 nmの緑色光励起で蛍光強度が最も高くなった． …

Nippon Laser Igakkaishi 41(4), 297-306, 2021

J-STAGE
6

Accuracy Improvement of the XRD-Rietveld Method for the Quantification of Crystalline Phases in Iron Sintered Ores Through the Correction of Micro-absorption Effects [in Japanese]

Harano Takayuki , Nemoto Yu , Murao Reiko , Kimura Masao

… For quantitative analysis, differences in the values of the linear absorption coefficient, μ, among the crystalline phases must be considered when certain X-ray sources are used, because such differences often affect their mass fractions. …

Tetsu-to-Hagane, 2021

J-STAGE
7

Sound Absorption Characteristics of Back-perforated Honeycomb Panel with an Air-layer : A Study Based on a Two-degree-of-freedom Model [in Japanese]

井上尚久 , 孔敬受 , 佐久間哲哉

騒音制御 = The journal of the INCE of Japan 44(6), 326-333, 2020-12
8

p-norm regularization for image reconstruction of the absorption coefficient for biomedical photoacoustic tomography [in Japanese]

大川晋平 , 平沢壮 , 櫛引俊宏 , 藤田真敬 , 石原美弥

レーザー学会研究会報告 = Reports the on topical meeting of the Laser Society of Japan RTM20(12-17), 19-24, 2020-10-09
9

Brief Note : Determination of molar absorption coefficient of surrogate calibration materials prepared for total and direct bilirubin measurements

Kiuchi Sachiko , Ihara Hiroshi , Osawa Susumu

International journal of analytical bio-science 8(3), 54-58, 2020-09
10

Studies of the Relationship Between Sound Absorption Coefficient and Air Permeability of Wood

KANG Chun–Won , JANG Eun–Suk , JANG Sang–Sik , HASEGAWA Masumi , MATSUMURA Junji

… The longitudinal sound absorption capability and air permeability of three species of Japanese wood were investigated. … The mean sound absorption coefficients of those sample specimens in the frequency range of 50–6400 Hz were 0.08, 0.06, and 0.20 for the heartwood and 0.16, 0.09, and 0.30 for the sapwood, respectively. … The sound absorption capability of the sample specimens increased with increase in air permeability. …

Journal of the Faculty of Agriculture, Kyushu University 65(2), 351-355, 2020-09

IR DOI
11

The Effect of Deviation Due to the Manufacturing Accuracy in the Parameters of an MPP on Its Acoustic Properties: Trial Production of MPPs of Different Hole Shapes Using 3D Printing

Sakagami Kimihiro , Kusaka Midori , Okuzono Takeshi , Nakanishi Shinsuke

… The normal incidence absorption coefficient and specific impedance were measured using an impedance tube. … Through these basic studies, the MPPs produced by an additive manufacturing 3D printer demonstrated good sound absorption performance; …

Acoustics 2(3), 605-616, 2020-09

IR
12

4. Material Science and Radiation Effects

CO4-28 Defect Characterization of Ion-Irradiated GdBa2Cu3O7−δ Superconducting Tapes Probed by a Slow Positron Beam /T. Ozaki et al.(31159) [175]

KURNS Progress Report (2019), 148-176, 2020-08

IR
13

Large thermal expansion leads to negative thermo-optic coefficient of halide perovskite CH₃NH₃PbCl₃ [in Japanese]

Handa Taketo , Tahara Hirokazu , Aharen Tomoko , Shimazaki Ai , Wakamiya Atsushi , Kanemitsu Yoshihiko

… Here, we report the origin of the unusual negative thermo-optic coefficient of the halide perovskite CH₃NH₃PbCl₃, i.e., a decrease in the refractive index by an increase in temperature. …

Physical Review Materials 4(7), 2020-07

IR
14

Two-Dimensional Exciton Diffusion in an HJ-Aggregate of Naphthobisoxadiazole-Based Copolymer Films

Murata Yasuhiro , Takeyama Taiki , Sakamoto Yuji , Yamaguchi Kento , Tamai Yasunari , Ohkita Hideo

… Herein we investigate the dimensionality of exciton diffusion in a naphthobisoxadiazole-based low-bandgap polymer PNOz4T through transient absorption spectroscopy. … By analyzing the time dependence of the annihilation rate coefficient, we find that excitons generated in PNOz4T crystalline domains show anisotropic two-dimensional diffusion along the backbone and π-stacking directions, which can be rationalized by comparable intra- and interchain exciton couplings. …

The Journal of Physical Chemistry C 124(24), 13063-13070, 2020-06-18

IR
15

Improvement of absorption and reduced scattering coefficient analysis method in time-resolved near-infrared spectroscopy using light propagation simulation [in Japanese]

孫鵬宇 , 野山大樹 , 森史奈 , 小谷潔 , 神保泰彦

電気学会研究会資料. MAG = The papers of technical meeting on magnetics, IEE Japan 2020(16・17・19-46), 19-23, 2020-03-19
16

A STUDY ON CREEP PROPERTY OF CONCRETE WITH RECYCLED AGGREGATE AND FLY ASH [in Japanese]

ONOMOTO Kento , TAKASU Koji , KOYAMADA Hidehiro , SUYAMA Hiroki

… It was confirmed that the correction factor proposed in the prediction formula is greatly influenced by the water absorption rate. … Therefore, when using recycled aggregate, it is considered necessary to propose a prediction formula for compressive creep strain considering water absorption. …

Journal of Structural and Construction Engineering (Transactions of AIJ) (769), 311-319, 2020-03

J-STAGE AIJ
17

Point defects in BaSi2 thin films for photovoltaic applications studied by positron annihilation spectroscopy

末益崇 , A. Montes , S. W. H. Eijt , Y. Tian , R. Gram , H. Schut , Takashi SUEMASU , N. Usami , M. Zeman , J. Serra , O. Isabella

… Barium di-silicide (BaSi2) is a very promising absorber material for high-efficiency thin-film solar cells, due to its suitable bandgap, high light absorption coefficient, and long minority-carrier lifetime. …

Journal of Applied Physics 127(8), 085304, 2020-02

IR
18

Fabrication of CsPbBr₃ Thick Films by Using a Mist Deposition Method for Highly Sensitive X-ray Detection

Haruta Yuki , Ikenoue Takumi , Miyake Masao , Hirato Tetsuji

… Metal halide perovskite materials have demonstrated excellent X-ray detection performance including a high sensitivity owing to their high absorption coefficient, high carrier mobility, and long carrier lifetime. …

MRS Advances 5(8-9), 395-401, 2020-01-13

IR
19

A STUDY ON SOUND ABSORPTION CHARACTERISTICS OF MOLDED PULP [in Japanese]

小泉穂高 , 栗木茂 , 山本拓弥

戸田建設技術研究報告 Toda technical research report (46), 4p, 2020
20

Studies on molar absorption coefficients of crystalline unconjugated bilirubin, ditaurobilirubin (synthetic bilirubin conjugate), and synthetic delta bilirubin [in Japanese]

木内幸子 , 西口慶一 , 難波俊二 , 渭原博

生物試料分析 = Journal of analytical bio-science 43(3), 208-213, 2020

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