Search Results - "Nakayama, Keiji"

Effect of Normal Force on the Triboplasma Generation Under Oil Lubrication by Nakayama, Keiji

“…Previously, triboplasma image was successfully taken under oil lubrication, and the mechanism of triboplasma generation was clarified to be caused by air…”
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An Achiral-Acid-Induced Switch in the Enantioselectivity of a Chiral cis-Diamine-Based Organocatalyst for Asymmetric Aldol and Mannich Reactions by Moteki, Shin A., Han, Jianwei, Arimitsu, Satoru, Akakura, Matsujiro, Nakayama, Keiji, Maruoka, Keiji

“…Pick and choose: The asymmetric synthesis of two different enantiomeric products has been achieved through the use of a single organocatalyst with or without…”
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Thermal Analysis of Photoelectron Emission (PE) and X-ray Photoelectron Spectroscopy (XPS) Data for Iron Surfaces Scratched in Air, Water, and Liquid Organics by Momose, Yoshihiro, Sakurai, Takao, Nakayama, Keiji

“…Little is known about the temperature dependence of electron transfer occurring at real metal surfaces. For iron surfaces scratched in seven environments, we…”
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The inhibitory effect of somatostatin on gastric motility in Suncus murinus by Sekiya, Haruka, Yokota, Naho, Takemi, Shota, Nakayama, Keiji, Okada, Hiroki, Sakai, Takafumi, Sakata, Ichiro

“…Gastric contractions show two specific patterns in many species, migrating motor contractions (MMC) and postprandial contractions (PPCs), that occur in the…”
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Triboemission of electrons, ions, and photons from diamondlike carbon films and generation of tribomicroplasma by Nakayama, Keiji

“…A new unified concept of triboelectromagnetic phenomena for thin films is developed, introducing factors such as triboelectrified surface potential, electric…”
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Transfer of electrons on scratched iron surfaces: Photoelectron emission and X-ray photoelectron spectroscopy studies by Momose, Yoshihiro, Suzuki, Daisuke, Tsuruya, Keika, Sakurai, Takao, Nakayama, Keiji

“…We report the activation energy, Δ E a , for the quantum yield in thermally assisted photoelectron emission (TAPE) under 210-nm-wavelength light irradiation,…”
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Contact Geometry and Distribution of Plasma Generated in the Vicinity of Sliding Contact by Nakayama, Keiji

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Tribochemical reactions at and in the vicinity of a sliding contact by Nakayama, Keiji, Martin, Jean-Michel

“…Tribochemical reactions, which are involved in both friction and wear processes, are crucially important to solve tribological problems. The origins of…”
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Simulation Analysis of the Neutral and Charged Intermediate Species Produced in the Triboplasma Using the PIC/MCC Method by Nakayama, Keiji, Tanaka, Masaaki

“…Triboplasma should be one of the main causes of the tribochemical reactions. In this report the distributions and intensities of the neutral and charged…”
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Triboplasma Generation and Triboluminescence in the Inside and the Front Outside of the Sliding Contact by Nakayama, Keiji

“…Previously, high-intensity triboplasma was discovered in the rear outside gap of the sliding contact by measuring the triboluminescence. However, we have…”
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Effects of a prostaglandin EP4 agonist, ONO-4819, and risedronate on trabecular microstructure and bone strength in mature ovariectomized rats by Ito, Masako, Nakayama, Keiji, Konaka, Akira, Sakata, Kiyoto, Ikeda, Kyoji, Maruyama, Takayuki

“…The effects of a prostaglandin EP4 agonist, ONO-4819, and risedronate, a representative anti-resorptive drug, on trabecular microarchitecture and biomechanical…”
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Asymmetric cyclopropanation reaction Under phase-transfer catalyzed conditions by Arai, Shigeru, Nakayama, Keiji, Ishida, Toshimasa, Shioiri, Takayuki

“…An asymmetric cyclopropanation reaction was developed using chiral quaternary ammonium salts as the phase-transfer catalyst (PTC). The reaction smoothly…”
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Complete Switch of Product Selectivity in Asymmetric Direct Aldol Reaction with Two Different Chiral Organocatalysts from a Common Chiral Source by Nakayama, Keiji, Maruoka, Keiji

“…A novel approach for asymmetric synthesis of both enantiomeric aldol products has been developed by designing two different chiral organocatalysts from a…”
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Effect of dry air pressure on characteristics and patterns of tribomicroplasma by Nakayama, Keiji, Nevshupa, Roman A.

“…An apparatus for making two-dimensional photon images of tribomicroplasma in controlled gas pressures was constructed. Using the apparatus, the dimensions,…”
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The Flow of Triboplasma by Nakayama, Keiji, Yagasaki, Fumio

“…Previously triboplasma was discovered in the rear gap of the sliding contact. Recently, the temperature of the triboplasma was successfully measured and…”
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The Effect of an Electrostatic Force on Imaging a Surface Topography by Noncontact Atomic Force Microscope by Tadashi Shiota, Tadashi Shiota, Keiji Nakayama, Keiji Nakayama

“…Noncontact atomic force microscope (NC-AFM) with and without scanning Kelvin probe force microscope (SKPM) has been studied to clarify the effect of an…”
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The Energy of Electrons Emitted from Wearing Solid Surfaces by Nakayama, Keiji, Fujimoto, Takashi

“…The energy of electrons emitted during the scratching of solids by a diamond stylus was measured using a retarding-potential energy analyzer in a vacuum of…”
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The Temperature of Triboplasma by Nakayama, Keiji, Yagasaki, Fumio

“…Previously triboplasma was discovered in the rear gap of the sliding contact in dry sliding in the ambient air. The mechanism of the triboplasma generation has…”
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Atom-Resolved Imaging of the Potential Distribution at Si (111) 7× 7 Surfaces by Shiota, Tadashi, Nakayama, Keiji

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Triboplasma Generation and Triboluminescence: Influence of Stationary Sliding Partner by Nakayama, Keiji

“…In this work, the characteristics of triboplasma have been investigated from the point of view of how the kinds of the stationary partner influence the photon…”
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