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Guilherme Yukio Sakurai, Jessica Fernandes Lopes, Bruno Bogaz Zarpelão and Sylvio Barbon Junior
The stream mining paradigm has become increasingly popular due to the vast number of algorithms and methodologies it provides to address the current challenges of Internet of Things (IoT) and modern machine learning systems. Change detection algorithms, ...
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Tsuyoshi Oishi, Mitsuru Tamari and Takashi Sakurai
Hybrid rockets are safe and inexpensive; however, boundary-layer combustion poses a problem in achieving a fuel regression rate equivalent to that of solid propellants. The fundamental combustion conditions, such as the fuel regression rate of LT421, a p...
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Yosuke Sakurai, Hirotaka Sato, Nozomu Adachi, Satoshi Morooka, Yoshikazu Todaka and Takashi Kamiyama
As a new method for evaluating single crystals and oligocrystals, pulsed neutron Bragg-dip transmission analysis/imaging method is being developed. In this study, a single Bragg-dip profile-fitting analysis method was newly developed, and applied for ana...
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Yoshihiro Momose, Takao Sakurai and Keiji Nakayama
This work describes the results of Arrhenius plot analysis of photoelectron emission (PE) and X-ray photoelectron spectroscopy (XPS) data for scratched iron surfaces. The data were obtained as a function of three variables of temperature, photon energy, ...
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Landon Kamps, Kazuhito Sakurai, Yuji Saito and Harunori Nagata
Static firing tests of a hybrid rocket motor using liquid nitrous oxide (N2O) as the oxidizer and high-density polyethylene (HPDE) as the fuel are analyzed using a novel approach to data reduction that allows histories for fuel mass consumption, nozzle t...
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Eissa Fathalla, Yasushi Tanaka, Koichi Maekawa and Akito Sakurai
By integrating a multi-scale simulation with the pseudo-cracking method, the remaining fatigue life of in-service reinforced concrete (RC) bridge decks can be estimated based upon their site-inspected crack patterns. But, it still takes time for computat...
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Satoru Chatani, Kazuyo Yamaji, Tatsuya Sakurai, Syuichi Itahashi, Hikari Shimadera, Kyo Kitayama and Hiroshi Hayami
The inter-comparison of regional air quality models is an effective way to understand uncertainty in ambient pollutant concentrations simulated using various model configurations, as well as to find ways to improve model performance. Based on the outcome...
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Ryoji Inada, Satoshi Yasuda, Hiromasa Hosokawa, Masaya Saito, Tomohiro Tojo and Yoji Sakurai
Garnet-type Li7-xLa3Zr2-xTaxO12 (LLZT) is considered a good candidate for the solid electrolyte in all-solid-state lithium batteries because of its reasonably high conductivity around 10−3...
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Mohamed Egiza, Hiroshi Naragino, Aki Tominaga, Kenji Hanada, Kazutaka Kamitani, Takeharu Sugiyama, Eiji Ikenaga, Koki Murasawa, Hidenobu Gonda, Masatoshi Sakurai and Tsuyoshi Yoshitake
Hard X-ray photoemission spectroscopy (HAXPES) was employed for the structural evaluation of ultrananocrystalline diamond/amorphous carbon (UNCD/a-C) composite films deposited on cemented carbide substrates, at substrate temperatures up to 550 °C by ...
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Takuyuki Yoshioka, Rin Sakurai, Shohei Kameyama, Koki Inoue and Bruce Hartsough
The processing of woody biomass waste piles for use as fuel instead of burning them was investigated. At each landing of slash pile location, a 132 kW grapple excavator was used to transfer the waste piles into a 522 kW horizontal grinder. Economies of s...
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