Article
Chemistry, Multidisciplinary
Zhenhua Zhang, Xiaodi Zhao, Jian Zhang, Guohua Bai, Hua Guo, Weiwei Liu, Bin Zhang, Jin Wang, Lianze Ji, Fu-rong Chen, Lizhong Zhao, Xuefeng Zhang
Summary: This article introduces a new type of micro-pillar structure that allows remote control of micro-pillars through the metal-insulator transition (MIT) of vanadium dioxide (VO2) in response to an electromagnetic field. By adding layers of amorphous silicon oxide, accurate control of the bending of the micro-pillars is achieved.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yong Li, Jun Li, Shanshan Miao, Huaixin Yang, Jianqi Li, Chang-Jong Kang, Youguo Shi, Hai L. Feng
Summary: The study explores metallic polar oxides by designing a single-layer Aurivillius oxide Bi2ReO6. Synthesized by high-pressure methods, Bi2ReO6 exhibits a tetragonal structure with the polar space group P4(2) cm (No.101), consisting of (Bi2O2)(2+) layers and perovskite-like [ReO4](2-) layers. The results indicate that Bi2ReO6 is a Pauli metal due to its magnetic and electrical properties, and the calculated electronic structures reveal the contribution of Re 5d orbitals hybridized with O 2p orbitals to the metallic nature at the Fermi level.
CHEMISTRY OF MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Qianwei Zeng, Peng Yang, Lu Yin, Chuan Wu, Feng Yang, Shiwen Yang
Summary: Phase modulation (PM) techniques based on time modulated arrays (TMAs) are commonly used to generate steerable beams. However, conventional PM techniques result in significant variations in the overall efficiency of TMAs in the scanning space, causing abrupt fluctuations in array gain. This letter introduces a geometric method for designing time modulated waveforms, which demonstrates suppressed peak sideband levels and stable overall efficiency in the constructed TMAs according to simulation results.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Weihao Pan, Song Wu, Liu Huang, Jinlong Song
Summary: A nanosecond laser ablation technology with versatility and high processing efficiency was developed to fabricate large-area superhydrophobic micro-conical pillar arrays, where the height and the pillar inclination angle can be easily controlled. The fabricated arrays not only show good mechanical robustness and chemical stability but also have potential application prospects in anti-icing.
Article
Chemistry, Physical
Polina Skvortsova, Dmitriy Shurpik, Ivan Stoikov, Bulat Khairutdinov
Summary: The spatial separation and organization of chemical reactions are important for cell functioning. This is achieved through cellular compartments and membraneless organelles. These compartments contain complex molecules such as proteins, DNA, and RNA.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Multidisciplinary Sciences
Prabal Dev Bhuyan, Sanjeev K. Gupta, Rajeev Ahuja, P. N. Gajjar
Summary: The study investigated the properties of silicon and germanium based metallic core/shell nanowires, showing an increase in quantum conductance as the diameter increases and a shift in absorption peak to lower energies due to quantum confinement effect in optical studies. Extensive research was conducted on the optical response of Pd and Pt based core-shell nanowires in different environments.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Ji-Heon Kang, Jae-Wook Lee, Jae-Hong Kim, Tae-Min Ahn, Dae-Cheol Ko
Summary: This study aims to reduce vehicle weight by replacing existing steel reinforcements with composite reinforcements in an automobile center pillar to improve fuel efficiency. A hybrid molding method is proposed to reduce process time and production cost. Structural analyses confirmed that composite reinforcements can achieve weight reduction while maintaining the same or higher specific stiffness compared to steel reinforcements.
Article
Multidisciplinary Sciences
Julian Karst, Moritz Floess, Monika Ubl, Carsten Dingler, Claudia Malacrida, Tobias Steinle, Sabine Ludwigs, Mario Hentschel, Harald Giessen
Summary: The study presents plasmonic nanoantennas made from metallic polymers and demonstrates an optically driven metal-to-insulator transition, enabling electrically switchable plasmonic resonances. Using this concept, electrically switchable beam-steering metasurfaces with high efficiency were successfully realized, showing potential for integrated active optical devices based on plasmonics.
Article
Computer Science, Interdisciplinary Applications
Phong Cong Hong Nguyen, Youngdoo Kim, Young Choi
Summary: In this study, a stress-based structural optimization method is proposed for the design of lightweight components filled with functionally graded cellular structures fabricated by selective laser melting. The experimental results show that components filled with functionally graded cellular structures can withstand a higher load.
JOURNAL OF COMPUTATIONAL DESIGN AND ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Hangboce Yin, Jiayan Law, Yongjiang Huang, Victorino Franco, Hongxian Shen, Sida Jiang, Ying Bao, Jianfei Sun
Summary: Through design and processing, non-equiatomic high-entropy-metallic-glass alloy microwires with tunable Curie temperatures and excellent magnetocaloric properties were successfully fabricated. The presence of Fe significantly affects the cooling efficiency and magnetocaloric response of the microwires.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Yonas Assefa Eshete, Eunji Hwang, Junhyung Kim, Phuong Lien Nguyen, Woo Jong Yu, Bai Sun Kong, Min Seok Jang, Jaekwang Lee, Suyeon Cho, Heejun Yang
Summary: Researchers have developed a polymorphic memtransistor based on Mo0.91W0.09Te2, which allows tuning of the lattice and electronic structures of the channel material to achieve metallic or semiconducting phases. This memtransistor exhibits high on/off ratio, low subthreshold swing, and various memristive behaviors, making it suitable for neuromorphic and in-memory computing applications.
ADVANCED MATERIALS
(2023)
Article
Engineering, Civil
Dongyong Shi, Kenichi Watanabe, Junya Naito, Kensuke Funada, Kazuya Yasui
Summary: The study verified the technical feasibility of local patchwork hot stamping technology and proposed an optimization method to determine the optimal position and shape of local patchwork blanks. The improvements of two parts were demonstrated as examples, showing that the optimized parts maintained crashworthiness while being lighter than the original parts.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Electrical & Electronic
Jiaxuan Liang, Tingyin Ning, Jiayu Fan, Zhiyong Wu, Min Zhang, Hong Su, Yu-Jia Zeng, Huawei Liang
Summary: The research proposes metallic waveguide transmiarray antennas (MWTAs) capable of generating multibeams with high gain and optional polarized states through simultaneous control of phase and polarization. Experimental results demonstrate promising performance for communication applications in the terahertz and millimeter wave bands.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Yilin Feng, Lidan Cao, Yan Zhang
Summary: A device based on slot antennas has been designed to stimulate terahertz SPPs and control their wave front simultaneously, which can simplify the design and fabrication of integrated SPPs devices. Adjustment of geometric parameters allows for phase modulation and improved conversion efficiency of terahertz propagating waves into surface waves.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Chemistry, Physical
M-N Avettand-Fenoel, N. Netto, A. Simar, M. Marinova, R. Taillard
Summary: In this study, multipass friction stir processing was performed to connect Fe based metallic glass ribbons with Cu plates. The process resulted in a decrease in the grain size of Cu, fracture and refinement of the amorphous reinforcement, and partial crystallization. The diffusion of Cu also led to enrichment in the Fe based metallic glass, forming nanometric polycrystalline copper oxides within the connection. The connection also experienced dynamic recovery and recrystallization, which were favored by the accumulation of dislocations around the reinforcements.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
