Search Results 1-20 of 6223

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Effect of chemical composition on mass transfer in Y2Ti2O7 under oxygen potential gradient at high temperatures

TANAKA Makoto , MATSUDAIRA Tsuneaki , KAWAI Emi , KAWASHIMA Naoki , MATSUMOTO Ushio , OGAWA Takafumi , TAKEUCHI Miyuki , KITAOKA Satoshi

… The oxygen shielding properties and structural stability of polycrystalline Y2Ti2O7 … Almost no decomposition of the YT phase occurred due to migration of the constituent cations at high temperatures, indicating high structural stability under an oxygen potential gradient. …

Journal of the Ceramic Society of Japan 129(1), 22-31, 2021

J-STAGE
2

Ni-GDC and Ni-YSZ electrodes operated in solid oxide electrolysis and fuel cell modes

SCIAZKO Anna , SHIMURA Takaaki , KOMATSU Yosuke , SHIKAZONO Naoki

… The degradation mechanisms correlated with Ni phase were found to be similar for Ni-GDC and Ni-YSZ electrodes. … On the other hand, the stability of the ceramic phase differs significantly between the two electrode materials. …

Journal of Thermal Science and Technology 16(1), JTST0013-JTST0013, 2021

J-STAGE
3

Synthesis of Ferromagnetic τ-Mn–Al–C by Reactive Sintering

Kobayashi Ryota , Mitsui Yoshifuru , Umetsu Rie Y. , Mizuguchi Masaki , Koyama Keiichi

… Ferromagnetic Mn–Al–C (τ-phase) can be synthesized by a single-route conventional reactive sintering method. … The τ-phase fraction was evaluated to be 81 mass% for Mn55Al45C2 … The τ-phase of Mn55Al45C2 …

MATERIALS TRANSACTIONS 62(1), 130-134, 2021

J-STAGE
4

Jitter-free 40-fs 375-keV electron pulses directly accelerated by an intense laser beam and their application to direct observation of laser pulse propagation in a vacuum

Inoue Shunsuke , Sakabe Shuji , Nakamiya Yoshihide , Hashida Masaki

… The duration of electron pulses after compression by a phase rotator composed of permanent magnets was measured as 89 fs via the ponderomotive scattering of electron and laser pulses, which were almost at the compression limit due to the dispersion of the electron optics. … The electron pulse compression system consisting of permanent magnets enabled extremely high timing stability between the laser pulse and electron pulse. …

Scientific Reports (10), 2020-11-23

IR
5

Thermal stability of α-Ga2O3 films grown on c-plane sapphire substrates via mist-CVD

Jinno Riena , Kaneko Kentaro , Fujita Shizuo

… The thermal stability of α-Ga2O3 films grown on c-plane sapphire substrates was investigated. … A strong correlation was found between thermal stability and film thickness: the more the α-Ga2O3 films maintained the α-phase upon heating at higher annealing temperature, the thinner they were. …

AIP Advances 10(11), 2020-11

IR
6

Effect of Nanoparticle Concentration on the Specific Heat Capacity and Thermal Stability of Graphite Nanoparticle-based Molten Salt

Nusrat Jahan Salim , Md. Ashiqur Rahman

… This study targets at examining the effect of nanoparticle concentration on the specific heat capacity (Cp) and thermal stability of binary carbonate salt eutectic mixture (lithium carbonate and potassium carbonate at a molar ratio of 62:38, respectively) doped with three different weight percentages (2%, 4%, and 6%) of graphite nanoparticles (GNP). … Simultaneous thermal analyzer (STA) is used to obtain the Cp and thermal stability of the prepared samples in both solid and liquid phases. …

Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES) (6), 52-59, 2020-10-22

IR DOI
7

Measurement of Self-Loop Function and Stability Test for Third-order Sallen-Key Low-Pass Filters

Tran MinhTri , Kuwana Anna , Kobayashi Haruo

電気学会研究会資料. ECT = The papers of technical meeting on electronic circuits, IEE Japan 2020(59-74), 47-52, 2020-10-08
8

Fundamental Study on the RMS Simulation of Single-phase Synchronous Inverter [in Japanese]

松本宗一郎 , 足立虹太 , 関﨑真也 , 餘利野直人 , 佐々木豊 , 造賀芳文 , 清水敏久

電気学会研究会資料. PSE = The papers of Technical Meeting on "Power Systems Engineering", IEE Japan 2020(49-56・82-94・97), 125-128, 2020-09-24
9

Fundamental Study on the RMS Simulation of Single-phase Synchronous Inverter [in Japanese]

松本宗一郎 , 足立虹太 , 関﨑真也 , 餘利野直人 , 佐々木豊 , 造賀芳文 , 清水敏久

電気学会研究会資料. PE 2020(44-51・77-89・92), 125-128, 2020-09-24
10

Parameter Design Based on Stability Analysis for Boost Integrated Three-Phase Inverter using Current Unfolding with Active Damping Method [in Japanese]

志茂亨輔 , 和田圭二 , 萬年智介 , HaPhamNgoc

電気学会研究会資料. MD 2020(90-101), 53-58, 2020-09-04
11

Parameter Design Based on Stability Analysis for Boost Integrated Three-Phase Inverter using Current Unfolding with Active Damping Method [in Japanese]

志茂亨輔 , 和田圭二 , 萬年智介 , HaPhamNgoc

電気学会研究会資料. SPC = The papers of technical meeting on semiconductor power converter, IEE Japan 2020(117-128), 53-58, 2020-09-04
12

Type-I Heterostructure and Improved Phase Stability of Formamidinium Lead Iodide Perovskite Grown on WS_2

Erkılıç Ufuk , Ago Hiroki

… In addition, two-dimensional perovskites grown on WS_2 showed better air stability compared with the pristine perovskite. … The improved stability is attributed to strain in the two-dimensional perovskite layer induced by the underlying WS_2. …

Evergreen 7(3), 323-328, 2020-09

IR DOI
13

Pivotal Role of Interdigitation in Interleaflet Interactions: Implications from Molecular Dynamics Simulations

Seo Sangjae , Murata Michio , Shinoda Wataru

… Thus elucidation of the likelihood of the formation or stability of a raft-like domain in the inner leaflet is necessary. … Herein we investigated the phase behavior of asymmetric membranes using coarse-grained molecular dynamics simulations. … We determine that interdigitated acyl chains modulated the partitioning of Chol in the opposing leaflet, resulting in phase separation. …

The Journal of Physical Chemistry Letters 11(13), 5171-5176, 2020-07-02

IR
14

2D Derivative Phase Induced Growth of 3D All Inorganic Perovskite Micro–Nanowire Array Based Photodetectors

Guoqing Tong , Maowei Jiang , Dae‐Yong Son , Luis K. Ono , Yabing Qi

… The reverse phase transition between derivative phases and perovskites usually induces recrystallization or forms mixed components. … In this work, derivative phase‐induced growth of the CsPbBr₃ micro–nanowire (MW) array by utilizing phase transition of the 2D CsPb₂Br₅ phase is reported. …

Advanced Functional Materials 30(34), 2002526, 2020-06-23

IR
15

Strong hydrogen bonding in a dense hydrous magnesium silicate discovered by neutron Laue diffraction

Purevjav Narangoo , Okuchi Takuo , Hoffman Christina

… To understand the reason for their stability under such extreme conditions, the chemical bonding geometry and cation exchange mechanism for including hydrogen were analyzed in a representative structure of such minerals (i.e. phase E of dense hydrous magnesium silicate) by using time-of-flight single-crystal neutron Laue diffraction. … Phase E has a layered structure belonging to the space group R (3) over barm and a very large hydrogen capacity (up to 18% H2O weight fraction). …

IUCRJ 7(3), 370-374, 2020-05

IR
16

Evaluation of image quality of pituitary dynamic contrast-enhanced MRI using time-resolved angiography with interleaved stochastic trajectories (TWIST) and iterative reconstruction TWIST (IT-TWIST)

Yokota Yusuke , Fushimi Yasutaka , Okada Tomohisa , Fujimoto Koji , Oshima Sonoko , Nakajima Satoshi , Fujii Toshihito , Tanji Masahiro , Inagaki Nobuya , Miyamoto Susumu , Togashi Kaori

… Assessment: Visual evaluation was conducted for image quality of delineation of the pituitary stalk and posterior lobe during the early arterial phase, cerebral white matter near the sella turcica, and the mass lesion. … Temporal stability of intensity of the nonenhanced area was evaluated on temporal standard deviation (SD) maps calculated from TWIST and IT‐TWIST. …

Journal of magnetic resonance imaging : JMRI 51(5), 1497-1506, 2020-05

IR
17

Study of Internal Waste Dump-Induced Shear Stress Behavior on Pit-Slope

Sugeng Wahyudi , Shimada Hideki , Sasaoka Takashi , Hamanaka Akihiro , Amarsaikhan Tsedendorj , Mao Pisith , Tumelo K. M. Dintwe , Moses Dyson

… Regardless of beneficial associated with internal waste dump (IWD) method, practices of this method within boundaries of pit-slope have some serious problems on stability issues due to this area is zone of potential failure. … Different scenarios as per pit-slope depths, IWD heights and buffer zone lengths have been accounted and simulated using PHASE 2 to understand changes in induced shear stress imposed on the pit-slope. …

Journal of Geoscience and Environment Protection 8(4), 71-86, 2020-04-21

IR
18

SYNTHESIS OF Nb-DOPED TiO_2 PHOTOCATALYST WITH HIGH-TEMPERATURE STABILITY BY A MECHANOCHEMICAL METHOD [in Japanese]

加藤龍磨

… Heat treatment gave rise to phase transformation from anatase to rutile. … Nb-doping surpressed the phase transformation. …

法政大学大学院紀要. 理工学・工学研究科編 (61), 1-2, 2020-03-24

IR DOI
19

Inverse Growth of Large-Grain-Size and Stable Inorganic Perovskite Micronanowire Photodetectors

Guoqing Tong , Maowei Jiang , Dae-Yong Son , Longbin Qiu , Zonghao Liu , Luis K. Ono , Yabing Qi

… However, low solubility of inorganic perovskites and complex phase transition make it difficult to realize the precise control of composition and length of nanowires using the conventional forward approach. … Herein, we report the self-assembly inverse growth of CsPbBr3 micronanowires (MWs) (CsPb2Br5 → CsPbBr3 + PbBr2↑) by controlling phase transition from CsPb2Br5 to CsPbBr3. …

ACS Applied Materials & Interfaces 12(12), 14185-14194, 2020-03-05

IR
20

Model Inter-Comparison for PM2.5 Components over urban Areas in Japan in the J-STREAM Framework

Yamaji Kazuyo , Chatani Satoru , Itahashi Syuichi , Saito Masahiko , Takigawa Masayuki , Morikawa Tazuko , Kanda Isao , Miya Yukako , Komatsu Hiroaki , Sakurai Tatsuya , Morino Yu , Kitayama Kyo , Nagashima Tatsuya , Shimadera Hikari , Uranishi Katsushige , Fujiwara Yuzuru , Hashimoto Tomoaki , Sudo Kengo , Misaki Takeshi , Hayami Hiroshi

… A model inter-comparison of secondary pollutant simulations over urban areas in Japan, the first phase of Japan's study for reference air quality modeling (J-STREAM Phase I), was conducted using 32 model settings. … The considerable underestimations (approximately 30 µg/m3 for total PM2.5) of all participant models found on heavily polluted days with approximately 40–50 µg/m3 for total PM2.5 indicated some problems in the simulated local meteorology such as the atmospheric stability. …

Atmosphere 11(3), 222, 2020-03

IR

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