Article
Mechanics
Taye Melaku Taddesse, Joseph Mathew
Summary: This study investigates the velocity field characteristics of stationary, turbulent twin round jets. Large-eddy simulations were conducted to obtain the flow fields, revealing that the two jets develop independently and merge into a single jet with an elliptic cross-section downstream. The merged jet becomes circular after a certain distance. The fluctuation levels of the merged jet scale with the local maximum mean velocity, and the mean streamwise velocity reaches a peak at a certain distance from the inflow plane. The velocity and length scales of the merged jet are connected to the input parameters through simple relations, and the far field development can be scaled using intrinsic scales.
JOURNAL OF FLUID MECHANICS
(2022)
Review
Chemistry, Physical
Lulu Zhang, Jun Huang
Summary: This Opinion article addresses the challenges in measuring and interpreting the electric double layer (EDL) at Pt(111)/aqueous solution interfaces using classical electrochemical methods. The article discusses discrepancies in measuring double layer capacitance, examines assumptions and limitations of the Frumkin-Melik-Gaikazyan (FMG) model, and compares the capacitance values derived from cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The article aims to contribute to a better understanding of the EDL at Pt(111)/aqueous solution interfaces.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
Michael Ludwig, Regine von Klitzing
Summary: The study investigates the interaction forces between charged surfaces across nanoparticle suspensions using colloidal-probe atomic force microscopy. The experimental force profiles are considered as a superposition of double layer and structural forces. The decay of the double layer force is independently described based on the suspension's ionic strength determined by electrolytic conductivity measurements.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Environmental Sciences
Lianhuan Hu, Guozhu Li, Zonghua Ding, Wenjie Sun, Xiukuan Zhao, Haiyong Xie, Zhengping Zhu, Tatsuhiro Yokoyama, Jiaping Lan, Zhaoguo Huang, Baiqi Ning
Summary: By using fast ionogram observations, we have reported the first simultaneous observations of ascending ion layers at equatorial and low latitudes. These findings suggest that the local E region metallic ions could be directly brought into the F region with the ascending layer, indicating the importance of fast ionogram measurements in studying the formation of unexpected high altitude metallic layers.
Article
Green & Sustainable Science & Technology
Zhigang Ma, Xuefeng Li
Summary: This study investigated the three-dimensional mechanical properties of aeolian sand using an equivalent alternative method. The results showed that the method was effective in determining the strength of the sand and revealed that the peak shear stress decreased with an increase in the intermediate principal stress coefficient. The experiments provided valuable data for the maintenance of desert roadbeds and the sustainable development of ecologically fragile areas.
Article
Multidisciplinary Sciences
Di Jin, Yongyun Hwang, Liraz Chai, Nir Kampf, Jacob Klein
Summary: The viscoelectric effect refers to the increase in viscosity of a polar liquid in an electric field due to its interaction with dipolar molecules. This study directly measures the viscoelectric effect in water and finds that its magnitude is much larger than previously estimated.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Engineering, Geological
Luke Tatnell, Ashley P. Dyson, Ali Tolooiyan
Summary: This paper presents a modified multi-reversal direct shear test method, simulated using the coupled Eulerian-Lagrangian finite element method, which successfully addresses measurement errors in standard direct shear tests and analyses residual shear strength of organic material mixtures with great improvement.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2021)
Article
Physics, Multidisciplinary
Wei-Hao Wang, Xiao-Yan Zhu, Jin-Xia Liu, Zhi-Wen Cui
Summary: This study focuses on the shear-horizontal (SH) waves excited by a shear source in a borehole, as well as the impact of borehole-side structures on wave fields. Through simulating and analyzing wave field characteristics under different structures, it is found that the SH-TE mode has potential application value for detecting borehole-side interfaces in geophysical logs.
Article
Physics, Applied
L. Colonel, A. Calvez, F. Fournel, V. Larrey, S. Moreau, F. Mazen, F. Rieutord
Summary: This article introduces a new technique for measuring direct bonding energies at the wafer scale. The technique uses the Double Cantilever Beam (DCB) method and interferometry in confocal IR laser source microscopy to measure crack openings. The method has better accuracy compared to other techniques.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Phuong Vo, Jan Forsman, Clifford E. Woodward
Summary: In this work, a new Monte Carlo simulation method is proposed to study highly coupled fluids in confined geometries at a constant chemical potential. The method uses multi-scale Hamiltonian methods to determine the chemical potential, allowing for standard simulations using grand canonical MC simulations or Widom's particle insertion method. This method is called boundary-Monte Carlo and uses an ideal fluid for the outer regions, making implicit simulations possible. The method is illustrated using different types of fluids in cylindrical and planar pores, showing its utility in practical applications.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2022)
Review
Chemistry, Physical
Katharina Doblhoff-Dier, Marc T. M. Koper
Summary: The electric double layer is a fundamental concept in electrochemistry, but its exact structure remains unresolved. This study discusses the current knowledge and gaps in understanding the structure of the Pt(111) double layer near the potential of zero charge (pzc). By analyzing various models, it is suggested that water adsorption at the interface plays an important role in interpreting capacitance features observed near the pzc. However, the deviations from Gouy-Chapman diffuse layer theory in low electrolyte concentration require further investigation.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
Kai Jiao, Wenyao Zhang, Rui Chuan, Huilong Yan, Anqi Zou, Qiuwang Wang, Chun Yang, Cunlu Zhao
Summary: An electric double layer (EDL) in a polyelectrolyte solution has distinct characteristics compared to those in simple electrolyte solutions. The EDL structures have different characteristic length scales for positively and negatively charged surfaces. The scaling law for the electrostatic energy stored in polyelectrolyte EDLs is different from that in electrolyte EDLs.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Fengyang Jing, Jian Pei, Yumin Zhou, Zhongzheng Qin, Bowen Cong, Ke Hua, Gang Chen
Summary: MnV2O4/NC, a novel double-layer hollow sandwich nanostructure synthesized efficiently in 5 minutes by microwave-assisted and in-situ pyrolysis coated polydopamine, shows superior performance as an anode for lithium-ion batteries with high specific capacity and outstanding cycling stability, attributed to its unique structure and coated carbon layer.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Lianwei Shan, Zilan Fang, Guodao Ding, Ziqi Shi, Limin Dong, Dan Li, Haitao Wu, Xuejiao Li, Jagadeesh Suriyaprakash, Yangtao Zhou, Yanwei Xiao
Summary: This study successfully synthesized BiOI/B-Bi2O3 heterojunction using electrophoretic deposition technique, exhibiting superior photocatalytic activity and stability. Theoretical calculations and experimental results revealed the importance of carrier transfer process and electric double layer structure in photocatalytic reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Materials Science, Multidisciplinary
Makoto Takayanagi, Takashi Tsuchiya, Daiki Nishioka, Masataka Imura, Yasuo Koide, Tohru Higuchi, Kazuya Terabe
Summary: The electrical response of the electric double layer (EDL) effect at the interface between a hydrogen-terminated diamond (H-diamond) and a Li+-conducting solid electrolyte LiNbO3 and Li3PO4 was investigated using an all-solid-state H-diamond-based EDL transistor (EDLT). Hall measurements showed that all EDLTs exhibited EDL-induced hole density modulation with a large EDL capacitance (CEDL) in the Li +-deficient region. Pulse response measurements indicated that the switching response speed was significantly influenced by the insertion of an LiNbO3 or Li3PO4 interlayer, particularly on the Li+ rich side.
MATERIALS TODAY PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Shunya Ito, Motohiro Kasuya, Kazue Kurihara, Masaru Nakagawa
Article
Chemistry, Multidisciplinary
Shunya Ito, Motohiro Kasuya, Kenji Kawasaki, Ryuta Washiya, Yuzuru Shimazaki, Akihiro Miyauchi, Kazue Kurihara, Masaru Nakagawa
Article
Chemistry, Multidisciplinary
Florian Lecadre, Motohiro Kasuya, Aya Harano, Yuji Kanno, Kazue Kurihara
Article
Engineering, Chemical
Sylvain Hemmette, Motohiro Kasuya, Florian Lecadre, Yuji Kanno, Denis Mazuyer, Juliette Cayer-Barrioz, Kazue Kurihara
Article
Chemistry, Multidisciplinary
Shunya Ito, Motohiro Kasuya, Kazue Kurihara, Masaru Nakagawa
Article
Chemistry, Multidisciplinary
Florian Lecadre, Motohiro Kasuya, Yuji Kanno, Kazue Kurihara
Article
Chemistry, Multidisciplinary
Motohiro Kasuya, Yuka Sano, Masataka Kawashima, Kazue Kurihara
Summary: The fluorescence pH probe C. SNARF-4F was used to measure the fluorescence spectrum of aqueous electrolytes between mica or silica surfaces at different surface separations. The pH of the aqueous CsCl between mica decreased exponentially with decreasing surface separation. The interfacial pH was found to be influenced by electrolyte concentration, electrolyte species, and substrates, with variations in pH observed at different concentrations and with different cationic species of the electrolytes.
Article
Biophysics
Keine Nishiyama, Kazuki Takahashi, Mao Fukuyama, Motohiro Kasuya, Ayuko Imai, Takumi Usukura, Nako Maishi, Masatoshi Maeki, Akihiko Ishida, Hirofumi Tani, Kyoko Hida, Koji Shigemura, Akihide Hibara, Manabu Tokeshi
Summary: This study presents an analytical method using fluorescence polarization immunoassay (FPIA) for rapid and quantitative detection of SARS-CoV-2 antibody in human serum. The FPIA system showed high accuracy in discriminating COVID-19 positive or negative serum samples. The total measurement time was about 20 minutes, and a serum volume of 0.25 μL was required, making it a rapid and convenient method for quantification of SARS-CoV-2 antibody.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Physical
Motohiro Kasuya, Daiki Kubota, Sho Fujii, Kazue Kurihara
Summary: The study utilized the electrochemical surface forces apparatus (EC-SFA) to investigate electrochemical reactions in a nano-space, revealing a sudden current increase at short distances between electrodes in a confined electrolyte solution. This study demonstrated the potential of EC-SFA as a powerful tool for fundamental knowledge and insights into nano-confined electrochemical reactions with implications for sensors and energy devices.
FARADAY DISCUSSIONS
(2022)
Article
Chemistry, Physical
Yoshimasa Suzuki, Nobuaki Kunikata, Motohiro Kasuya, Hideshi Maki, Masaki Matsui, Kazue Kurihara, Minoru Mizuhata
Summary: Solution structures at solid-liquid interfaces are crucial in electrochemical reactions. This study investigated the behavior of a mixed solvent at the interface with SiO2 and found a long-range ordered structure. The interfacial structure influenced ionic conduction.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Nanoscience & Nanotechnology
Kiyoshi Urakawa, Motohiro Kasuya, Kiyoshi Kanie, Hiroyuki Shibata, Takenobu Sato, Takashi Ebata, Shigeru Suzuki
Summary: The thickness of aluminum oxide films formed on FeCo-V alloys doped with aluminum was found to increase with aluminum content and temperature. However, the electrical resistivity of the films did not correlate with their thickness. Micro-beam XPS analysis revealed that the oxide films were partially exfoliated in alloys with high aluminum content. The thickness of the oxide film and the amount of aluminum are crucial factors in controlling the formation of high resistivity aluminum oxide films in FeCo-V alloys.
E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Yoshimasa Suzuki, Nobuaki Kunikata, Motohiro Kasuya, Hideshi Maki, Masaki Matsui, Kazue Kurihara, Minoru Mizuhata
Summary: The behavior of a mixed solvent of propylene carbonate (PC)-1,2-dimethoxyethane (DME) at the interface with SiO2 was investigated. The interfacial structure affected ionic conduction and could be reduced by adding LiClO4.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Florian Lecadre, Motohiro Kasuya, Sylvain Hemette, Aya Harano, Yuji Kanno, Kazue Kurihara
Article
Nanoscience & Nanotechnology
Motohiro Kasuya, Susumu Imashuku, Kazuaki Wagatsuma, Kiyoshi Urakawa, Takenobu Sato, Takashi Ebata, Shigeru Suzuki
E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY
(2020)
Meeting Abstract
Chemistry, Multidisciplinary
Kazue Kurihara, Masashi Mizukami, Motohiro Kasuya
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
