检索结果-内蒙古大学图书馆

Corrigendum to “Structural, dielectric, electric and magnetic properties of magnesium substituted lithium nanoferrites” [Ceram. Int. 49 (2023) 31114–31123]

引用

Ceramics International 2023年第22期49卷 35700-35701页

作者： Mohd. Hashim D. Ravvinder Nayak Ateeq Ahmed Shalendra Kumar Sagar E. Shirsath Mukhlis M. Ismail S.K. Sharma Muntasir Ali Alayasreh Ravi Kumar D. Ravinder R.B. Jotania Sher Singh Meena Khalid Mujasam Batoo Department of Applied Physics Aligarh Muslim University Aligarh 202002 India T.S. Model School & College Gaddipally 508201 India Department of Materials Science and Engineering Chosun University Gwangju 61452 Republic of Korea Department of Physics School of Engineering University of Petroleum & Energy Studies Dehradun 248007 India School of Materials Science and Engineering University of New South Wales Sydney NSW 2052 Australia Department of Applied Science University of Technology-Iraq Iraq Nan Chand Anglo Sanskrit College of Meerut India Department of Physics Mutah University Jordan Department of Material Science and Engineering National Institute of Technology Hamirpur 177005 HP India Department of Physics Osmania University Hyderabad India Department of Physics Electronics and Space Science University School of Sciences Gujarat University Ahmedabad 380 009 India Solid State Physics Division Bhabha Atomic Research Centre Mumbai 400 085 India Collage of Science King Saud University P.O. Box-2455 Riyadh 11451 Saudi Arabia

来源：评论

学校读者我要写书评

暂无评论

Design of novel hybrid 2D nanomaterials for optical, optoelectronic and micro-electro-mechanical systems applications

Hybrid Advances

引用

Hybrid Advances 2023年 3卷

作者： Elloh, V.W. Boadu, E. Okoampa Gebreyesus, G. Mishra, A.K. Dodoo-Arhin, D. Yaya, A. Department of Physics University of Petroleum and Energy Studies (UPES) Dehradun India Department of Biomedical Engineering Koforidua Technical University Koforidua Ghana Department of Physics University of Ghana Legon Ghana Department of Materials Science and Engineering University of Ghana Legon Ghana

Novel hybrid 2D class of ternary nanoheterostructures have been designed by mixing aluminium nitride (AlN), boron nitride (BN) with 2D graphene with the aim of designing innovative 2D nanoheterostructures for applications in electronics and other industries. The structural stability and electronic properties of these nanoheterostructures have been analysed using “first-principles based calculations done in the framework of density functional theory. Different structural patterns have been analysed to identify the most stable nanoheterostructures. It has been found to be more energetically favourable that the aluminium nitride and boron nitride atom chains occupy the positions of the carbon atoms in a clustered pattern in the nanoheterostructures. Carbon atom chains sandwiched between aluminium nitride and boron nitride chains of atoms is a preferred choice over isolated chains of BN, AlN and CC in the nanoheterostructures. The calculated band gaps of the novel nanoheterostructures are found to be 0.87, 0.43 and 0.65 eV respectively. These novel hybrid 2D nanoheterostructures are energetically favoured materials with both direct and indirect band gaps. They have potential applications in nanoscale semiconducting and optoelectronic devices, notably optical, optoelectronic and micro-electro-mechanical systems. © 2023 The Authors

关键词： Design Hybrid Microelectromechanical Novel hybrid 2D nanoheterostructures Optoelectronics

来源：评论

学校读者我要写书评

暂无评论

Pulp and paper mill effluents management

引用

Water Environment Research 2010年第10期82卷 1560-1567页

作者： Menezes, Gustavo B. Galvão, T. Cassia De Brito Moo-Young, H. Keith Department of Civil Engineering California State University Los Angeles 5151 State University Drive Los Angeles CA 90032 United States Environmental Science and Studies Program Spelman College 350 Spelman Ln SW Atlanta GA 30314 United States College of Engineering Computer Science and Technology California State Univ. Los Angeles 5151 State Univ. Dr Los Angeles CA 90032 United States

Over the years, paper production and development processes have continuously changed to meet the demands of our society. Direct consequences are rapid transformation of production processes and use of new chemicals. Indirectly, changes have occurred to wastewater compositions and their impacts on the receiving environment. Mitigation of the negative impact of effluents depends on the development of advanced effluent management technologies that are both environmentally conscious and cost-effective. In 2009, a large number of publications targeted these issues. A set of manuscripts that best represent the 2009 literature on pulp and paper industry effluent management are reviewed herein. Publications have been grouped into the following areas of knowledge: Toxicology and Monitoring, Sustainability Practices, Biological Treatment, Physicochemical Treatment, and Biochemical Treatment. Copyright © 2010 Water Environment Federation.

关键词： Effluents

来源：评论

学校读者我要写书评

暂无评论

Magic-angle bilayer phononic graphene

引用

Physical Review B 2020年第18期102卷 180304(R)-180304(R)页

作者： Yuanchen Deng Mourad Oudich Nikhil JRK Gerard Jun Ji Minghui Lu Yun Jing Graduate Program in Acoustics Penn State University University Park Pennsylvania 16802 USA Université de Lorraine CNRS Institut Jean Lamour F-54000 Nancy France Department of Mechanical and Aerospace Engineering North Carolina State University Raleigh North Carolina 27695 USA National Laboratory of Solid State Microstructures and Department of Materials Science and Engineering Nanjing University Nanjing Jiangsu 210093 China

Thanks to the recent discovery of the magic-angle bilayer graphene, twistronics is quickly becoming a burgeoning field in condensed matter physics. This Rapid Communication expands the realm of twistronics to acoustics by introducing twisted bilayer phononic graphene, which remarkably also harbors the magic angle, evidenced by the associated ultraflat bands. Beyond mimicking quantum-mechanical behaviors of twisted bilayer graphene, we show that their acoustic counterpart offers a considerably more straightforward and robust way to alter the interlayer hopping strength, enabling us to unlock magic angles (>3∘) inaccessible in classical twisted bilayer graphene. This study not only establishes the acoustical analog of twisted (magic-angle) bilayer graphene, providing a test bed more easily accessible to probe the interaction and misalignment between stacked two-dimensional materials, but also points out the direction to a new phononic crystal design paradigm that could benefit applications such as enhanced acoustic emission and sensing.

关键词： Acoustic wave phenomena Mechanical & acoustical properties Phonons Acoustic metamaterials Metamaterials

来源：评论

学校读者我要写书评

暂无评论

DTCMS: Dynamic traffic congestion management in Social Internet of Vehicles (SIoV)

引用

Internet of Things (Netherlands) 2021年 16卷

作者： Roopa, M.S. Ayesha Siddiq, S. Buyya, Rajkumar Venugopal, K.R. Iyengar, S.S. Patnaik, L.M. Department of Computer Science and Engineering University Visvesvaraya College of Engineering Bangalore University Bengaluru 560-001 India Cloud Computing and Distributed Systems Laboratory School of Computing and Information Systems University of Melbourne Melbourne 3053 VIC Australia Bangalore University Bengaluru 560-001 India Department of Computer Science and Engineering Florida International University Miami 33199 FL United States Consciousness Studies Program National Institute of Advanced Studies Indian Institute of Science Bengaluru 560-012 India

With the augmentation of traffic exponentially, we observe that traffic congestion does not guarantee road safety or enhance the driving experience. In the recent past, Social Internet of Vehicles (SIoV), a social network paradigm permits social relationships among every vehicle in the network or with any road infrastructure to render a radically useful environment. SIoV is beneficial for the drivers, in improving road safety, avoiding mishaps, and providing a friendly-driving experience. In this paper, we propose a traffic scheduling algorithm to gain the maximum throughput for the flow of vehicles at a road intersection with the formation of social relationships among the vehicles and with the Road Side Units (RSUs). The algorithm estimates the flow rate of vehicles for lanes at the intersections exploiting the volume of traffic moving through the given road. A condition matrix is designed for the consistent movement of traffic considering different routes on the road segments. Social relationships are devised on various aspects of travel needs for a safe, agile, and better driving experience. Simulation results illustrate the efficacy of the proposed scheme with high traffic throughput, service rate and reduce the total travelling time, delay time, and average waiting time in comparison with Dynamic Throughput Maximization Framework and Adaptive Traffic Control Algorithm. © 2020 Elsevier B.V.

关键词： Dynamic traffic control Social Internet of Vehicles (SIoV) Social relationships Traffic congestion management

来源：评论

学校读者我要写书评

暂无评论

Entanglement in Quantum Dots: Insights from Dynamic Susceptibility and Quantum Fisher Information

arXiv

引用

arXiv 2024年

作者： Abouie, Jahanfar Vashaee, Daryoosh Department of Physics Institute for Advanced Studies in Basic Sciences Zanjan45137-66731 Iran Department of Materials Science & Engineering North Carolina State University RaleighNC27606 United States Department of Electrical & Computer Engineering North Carolina State University RaleighNC27606 United States

This study investigates the entanglement properties of quantum dots (QDs) under a universal Hamiltonian where the Coulomb interaction between particles (electrons or holes) decouples into charging energy and exchange coupling terms. Although this formalism typically decouples the charge and spin components, confinement-induced energy splitting can induce unexpected entanglement within the system. By analyzing the dynamic susceptibility and quantum Fisher information (QFI), we uncover significant behaviors influenced by exchange constants, temperature variations, and confinement effects. In QDs with Ising exchange interactions, far below the Stoner instability (SI) point, where the QD is in a disordered paramagnetic phase, temperature reductions lead to decreased entanglement, challenging conventional expectations. Our findings demonstrate that for QDs with small exchange interactions, the responses of easy-plane (Jz ⊥) and easy-axis (Jz > J⊥) configurations are similar, with increased anisotropy broadening susceptibility and shifting its maximum to higher frequencies. For large exchange interactions, the susceptibility differences between easy-plane and easy-axis QDs become significant, with easy-plane QDs exhibiting a higher susceptibility magnitude. Additionally, the study reveals that temperature variations affect the dynamic response functions differently in easy-axis and easy-plane QDs. In easy-plane QDs, QFI consistently decreases with increasing temperature, whereas in easy-axis QDs, QFI behavior is highly dependent on the strengths of Jz and J⊥, showing either an increase or decrease with temperature based on specific coupling conditions. Conversely, at low temperatures, anisotropic Heisenberg models exhibit enhanced entanglement near isotropic points. Overall, this work contributes to advancing our understanding of entanglement in QDs and its potential applications in quantum technologies. Copyright © 2024, The Authors. All rights reserved.

关键词： Anisotropy

来源：评论

学校读者我要写书评

暂无评论

Development of an optically gated Fe/n-GaAs spin-polarized transistor

引用

Physical Review B 2022年第13期106卷 134404-134404页

作者： J. Y. Kim M. Samiepour E. Jackson J. Ryu D. Iizasa T. Saito M. Kohda J. Nitta H. E. Beere D. A. Ritchie A. Hirohata Department of Physics University of York York YO10 5DD United Kingdom Institute of Materials Research and Engineering Agency for Science Technology and Research (A*STAR) 138634 Singapore Department of Electronic Engineering University of York York YO10 5DD United Kingdom Department of Materials Science Tohoku University Sendai 980-8579 Japan Spintronics Research Network Tohoku University Sendai 980-8579 Japan Organisation for Advanced Studies Center for Science and Innovation in Spintronics (Core Research Cluster) Tohoku University Sendai 980-8579 Japan Department of Physics University of Cambridge Cambridge CB3 0HE United Kingdom

Efficient modulation of electrically injected spin signals that is suitable for modern-day transistor functionality is yet to be established. In this work, we demonstrate in detail the fabrication of a Fe/n-GaAs spin injection device and the experimental setup for an optical gating of the nonlocal spin transport signal. In situ scanning electron microscopy interface imaging reveals more uniform current distribution at the Fe/n-GaAs injector interface at bias voltages higher than the Schottky barrier height. Three- and four-terminal Hanle measurements confirm successful spin injection into n-GaAs, with strong interfacial spin dephasing at high magnetic fields. A time-resolved pump-probe Kerr rotation setup was used to illuminate circularly polarized light in the region of the pure spin current in Fe/n-GaAs lateral spin injection devices, where (0.4±0.3)% modulation of the nonlocal signal depending on the light helicity was observed at 30 K.

关键词： Electrical spin injection Optical generation of spin carriers Optical spin injection Spintronics Photoexcitation

来源：评论

学校读者我要写书评

暂无评论

Maritime education in the era of Society 5.0 and autonomous ships: a concise literature review

引用

Australian Journal of Maritime and Ocean Affairs 2024年

作者： Ahmad Fuad, Ahmad Faizal Choong, Douglas Pin Aun Suhrab, Mohammed Ismail Russtam Zainol, Ismail Nautical Science and Maritime Transport Program Faculty of Maritime Studies Universiti Malaysia Terengganu Terengganu Malaysia Universiti Kuala Lumpur Malaysian Institute of Marine Engineering Technology Lumut Perak Malaysia

Maritime education and training (MET) is well-structured and internationally developed by the member states of IMO. Model courses, such as IMO Model Course 7.01, were developed for specific competencies and levels. With the gradual introduction of MASS, specific competencies should be added to support MASS operation and irrelevant competencies dropped. At the same time, MET should support the Society 5.0 concept to address social issues. This paper conducted a literature review on maritime education, MASS and Society 5.0. The interlink between these three concepts are use of the latest technologies, such as the Internet of Things, clouds, automation, artificial intelligence, and drone technology, to eliminate current issues and support future operations, learning the basics of future technologies, and learning to learn. IMO Model Course 7.03 should be dropped, and IMO Model Course 7.01 should be improved by adding the relevant future competencies that support MASS. © 2024 Informa UK Limited, trading as Taylor & Francis Group.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Review: Topology of solitons and singular defects in chiral liquid crystals

arXiv

引用

arXiv 2021年

作者： Wu, Jin-Sheng Smalyukh, Ivan I. Department of Physics and Chemical Physics Program University of Colorado BoulderCO80309 United States Dept. of Electrical Computer and Energy Engineering and Materials Science and Engineering Program University of Colorado BoulderCO80309 United States Renewable and Sustainable Energy Institute National Renewable Energy Laboratory University of Colorado BoulderCO80309 United States

Widely known for their uses in displays and electro-optics, liquid crystals are more than just technological marvels. They vividly reveal the topology and structure of various solitonic and singular field configurations, often markedly resembling the ones arising in many field theories and in the areas ranging from particle physics to optics, hard condensed matter and cosmology. In this review, we focus on chiral nematic liquid crystals to show how these experimentally highly accessible systems provide valuable insights into the structure and behavior of fractional, full, and multi-integer two-dimensional skyrmions, dislocations and both abelian and non-abelian defect lines, as well as various three-dimensionally localized, often knotted structures that include hopfions, heliknotons, torons and twistions. We provide comparisons of some of these field configurations with their topological counterparts in chiral magnets, discussing close analogies between these two condensed matter systems. Copyright © 2021, The Authors. All rights reserved.

关键词： Topology

来源：评论

学校读者我要写书评

暂无评论

Chiral metal-organic framework based spin-polarized flexible photodetector with ultrahigh sensitivity

引用

materials Today Nano 2023年 21卷

作者： Mustaqeem, M. Kamal, S. Ahmad, N. Chou, P.-T. Lin, K.-H. Huang, Y.-C. Guo, G.-Y. Paul Inbaraj, C.R. Li, W.-K. Yao, H.-C. Lu, K.-L. Chen, Y.-F. Department of Chemistry National Taiwan University No. 1 Section 4 Roosevelt Rd Taipei10617 Department of Physics National Taiwan University No. 1 Section 4 Roosevelt Rd Taipei10617 Nano-Science and Technology Program Taiwan International Graduate Program Institute of Physics Academia Sinica Taipei106 Taiwan Institute of Chemistry Academia Sinica Taipei115 Taiwan Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei10607 Taiwan Institute of Physics Academia Sinica Taipei11529 Taiwan Department of Materials Engineering Ming Chi University of Technology

Spin-optoelectronics plays a key role in developing next-generation technologies with potential applications covering from pharmaceutical synthesis and quantum computing to optical communication. One of the most feasible ways to achieve high-performance spin optoelectronic devices is based on chiral materials. Chiral metal-organic frameworks (CMOFs), an emerging class of chiral hybrid materials, have sparked interest due to their structural variety and flexibility, order nanopores, cost-effectiveness, and unique chirality features. Herein, we have developed CMOF [Sr (9,10-adc) (DMAc)2]n based on achiral building blocks [(9,10-adc)] to detect circularly polarized light (CPL) with ultrahigh sensitivity. Their application in spin-polarized flexible detectors gives a detectivity (D∗) as high as 1.83 × 1012 jones, superior to all reported heterochiral MOF-based detectors. Meanwhile, the anisotropy factor (gIph) is up to 0.38 for CPL detection. The maximum photoresponsivity (Rph) and photogain (η) values of CMOFs reach up to 6.0 × 105 (A/W) and 1.8 × 106, respectively, which are also the record values among reported chiral MOFs. Additionally, the photodetector is mechanically flexible and durable, manifesting an important feature for wearable devices. Therefore, our study shown here is significant and timely to open a route for advancing spin-optoelectronics based on CMOF. © 2023 Elsevier Ltd

关键词： Photodetectors

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：