检索结果-内蒙古大学图书馆

arXiv 2025年

作者： Lango, Marta Naglik, Borys Lango, Mateusz Naglik, Iwo Poznan University of Technology Faculty of Computing and Telecommunications Poland Adam Mickiewicz University Faculty of Mathematics and Computer Science Poland Charles University Faculty of Mathematics and Physics Institute of Formal and Applied Linguistics Czech Republic deepsense.ai Poland

Aspect-Sentiment Triplet Extraction (ASTE) is one of the most challenging and complex tasks in sentiment analysis. It concerns the construction of triplets that contain an aspect, its associated sentiment polarity, and an opinion phrase that serves as a rationale for the assigned polarity. Despite the growing popularity of the task and the many machine learning methods being proposed to address it, the number of datasets for ASTE is very limited. In particular, no dataset is available for any of the Slavic languages. In this paper, we present two new datasets for ASTE containing customer opinions about hotels and purchased products expressed in Polish. We also perform experiments with two ASTE techniques combined with two large language models for Polish to investigate their performance and the difficulty of the assembled datasets. The new datasets are available under a permissive licence and have the same file format as the English datasets, facilitating their use in future research. © 2025, CC BY.

关键词： Emotion Recognition

来源：评论

学校读者我要写书评

暂无评论

Spin-orbit torque induced magnetization dynamics and switching in a CoFeB/Ta/CoFeB system with mixed magnetic anisotropy

引用

Physical Review B 2021年第13期103卷 134421-134421页

作者： Stanisław Łazarski Witold Skowroński Krzysztof Grochot Wiesław Powroźnik Jarosław Kanak Marek Schmidt Tomasz Stobiecki Institute of Electronics AGH University of Science and Technology Al. Mickiewicza 30 30-059 Kraków Poland Faculty of Physics and Applied Computer Science AGH University of Science and Technology Al. Mickiewicza 30 30-059 Kraków Poland Institute of Molecular Physics Polish Academy of Sciences ul. Smoluchowskiego 17 60-179 Poznań Poland

Spin-orbit torque (SOT) induced magnetization switching in CoFeB/Ta/CoFeB trilayer with two ferromagnetic CoFeB layers exhibiting in-plane and perpendicular magnetic anisotropy (PMA), respectively, is investigated. Interlayer exchange coupling (IEC), measured using the ferromagnetic resonance technique is modified by varying thickness of the heavy metal Ta spacer (tTa). The evolution of the IEC with tTa leads to different orientations of the magnetic anisotropy axes of two CoFeB layers: for tTa>1.3nm, magnetization prefers antiferromagnetic alignment, whereas for tTa<1.3nm, ferromagnetic coupling is measured. The magnetization state of the CoFeB layer exhibiting PMA is controlled by the spin-polarized current originating from the Ta layer in micrometer sized Hall bars. The SOT induced critical current density with Ta spacer thickness is presented, showing an increase with decreasing tTa, which coincides with the CoFeB coercive field dependence. In a narrow range of tTa corresponding to the ferromagnetic IEC, the field-free SOT induced magnetization switching is achieved.

关键词： Magnetic anisotropy Magnetization switching Spin Hall effect Spin accumulation Spin torque Spin-orbit coupling Spintronics Magnetic multilayers Ferromagnetic resonance Resistivity measurements X-ray diffraction X-ray reflectivity

来源：评论

学校读者我要写书评

暂无评论

Endothelial deletion of miRNA-34A blocks aortic aneurysm development in NRF2 KO mice – focus on endothelial cell proliferation

引用

Free Radical Biology and Medicine 2025年 233卷 S97-S97页

作者： Aleksandra Kopacz Damian Kloska Anna Bar Marta Targosz-Korecka Dominik Cysewski Kamil Awsiuk Aleksandra Piechota-Polanczyk Milena Cichon Stefan Chlopicki Alicja Jozkowicz Anna Grochot-Przeczek Department of Medical Biotechnology Faculty of Biochemistry Biophysics and Biotechnology Jagiellonian University Krakow Poland Jagiellonian Centre for Experimental Therapeutics Jagiellonian University Krakow Poland Department of Physics of Nanostructures and Nanotechnology Faculty of Physics Astronomy and Applied Computer Science M. Smoluchowski Institute of Physics Jagiellonian University Krakow Poland Mass Spectrometry Laboratory Institute of Biochemistry and Biophysics Polish Academy of Sciences Warsaw Poland Department of Molecular and Interfacial Biophysics Faculty of Physics Astronomy and Applied Computer Science M. Smoluchowski Institute of Physics Jagiellonian University Krakow Poland

来源：评论

学校读者我要写书评

暂无评论

Pressure induced transition from chiral charge order to time-reversal symmetry-breaking superconducting state in Nb-doped CsV3Sb5

arXiv

引用

arXiv 2024年

作者： Graham, J.N. Islam, S.S. Sazgari, V. Li, Y. Deng, H. Janka, G. Zhong, Y. Gerguri, O. Král, P. Doll, A. Bialo, I. Chang, J. Salman, Z. Suter, A. Prokscha, T. Yao, Y. Okazaki, K. Luetkens, H. Khasanov, R. Wang, Z. Yin, J.-X. Guguchia, Z. PSI Center for Neutron and Muon Sciences CNM Villigen5232 Switzerland Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement Ministry of Education School of Physics Beijing Institute of Technology Beijing100081 China Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems Beijing Institute of Technology Beijing100081 China Department of Physics Southern University of Science and Technology Guangdong Shenzhen518055 China Institute for Solid States Physics The University of Tokyo Kashiwa Japan Physik-Institut Universität Zürich Winterthurerstrasse 190 ZürichCH-8057 Switzerland AGH University of Science and Technology Faculty of Physics and Applied Computer Science Kraków30-059 Poland International Center for Quantum Materials Beijing Institute of Technology Zhuhai319000 China Trans-scale Quantum Science Institute The University of Tokyo Tokyo Japan Material Innovation Research Center The University of Tokyo Kashiwa Japan

The experimental realisation of unconventional superconductivity and charge order in kagome systems AV3Sb5 is of critical importance. We conducted a highly systematic study of Cs(V1−xNbx)3Sb5 with x=0.07 (Nb0.07-CVS) by employing a unique combination of tuning parameters such as doping, hydrostatic pressure, magnetic fields, and depth, using muon spin rotation, AC susceptibility, and STM. We uncovered tunable magnetism in the normal state of Nb0.07-CVS, which transitions to a time-reversal symmetry (TRS) breaking superconducting state under pressure. Specifically, our findings reveal that the bulk of Nb0.07-CVS (at depths >20 nm from the surface) experiences TRS breaking below T∗ = 40 K, lower than the charge order onset temperature, TCO = 58 K. However, near the surface ( © 2024, CC BY.

关键词： Magnetic susceptibility

来源：评论

学校读者我要写书评

暂无评论

Superconducting dome with extended s-wave pairing symmetry in the heavily hole-overdoped copper-oxide planes

引用

Physical Review B 2021年第14期103卷 144511-144511页

作者： M. Zegrodnik P. Wójcik J. Spałek Academic Centre for Materials and Nanotechnology AGH University of Science and Technology Al. Mickiewicza 30 30-059 Krakow Poland Faculty of Physics and Applied Computer Science AGH University of Science and Technology Al. Mickiewicza 30 30-059 Krakow Poland Institute of Theoretical Physics Jagiellonian University ul. Łojasiewicza 11 30-348 Krakow Poland

We analyze the two-orbital (with dx2−y2 and d3z2−r2 orbitals) analog of the t−J−U model as applied to the description of the copper-oxide monolayer deposited on the Bi2Sr2CaCu2O8+δ substrate (CuO2/BSCCO). We show that an extended s-wave superconducting dome appears in the heavily hole-overdoped regime of the model, with dominant contribution to the pairing coming from the d3z2−r2 orbitals. Also, the lower critical doping for the appearance of the SC state concurs with the Lifshitz transition after which the hole-like Fermi pockets are created around the M points in the Brillouin zone. The obtained results are in accord with the recent experimental result [cf. Zhong et al., Sci. Bull. 61, 1239 (2016)]. An analogous two-band description is also analyzed in the context of the Ba2CuO4−y bulk compound, where the heavily hole-overdoped situation is believed to be reached [cf. Li et al., Proc. Natl. Acad. Sci. USA 116, 12156 (2019)]. As we show, a two-dome structure can be realized in such system with the d- and s-wave symmetries of the gap, corresponding to the low hole-doping and heavily hole-overdoped cases, respectively.

关键词： Pairing mechanisms Superconductivity d-wave s-wave 2-dimensional systems High-temperature superconductors Strongly correlated systems Electron-correlation calculations

来源：评论

学校读者我要写书评

暂无评论

Current-Induced Magnetization Switching of Exchange-Biased NiO Heterostructures Characterized by Spin-Orbit Torque

引用

Physical Review applied 2021年第1期15卷 014017-014017页

作者： Krzysztof Grochot Łukasz Karwacki Stanisław Łazarski Witold Skowroński Jarosław Kanak Wiesław Powroźnik Piotr Kuświk Mateusz Kowacz Feliks Stobiecki Tomasz Stobiecki Department of Electronics AGH University of Science and Technology Al. Mickiewicza 30 30-059 Kraków Poland Faculty of Physics and Applied Computer Science AGH University of Science and Technology Al. Mickiewicza 30 30-059 Kraków Poland Institute of Molecular Physics Polish Academy of Sciences ul. Smoluchowskiego 17 60-179 Poznań Poland

In this work, we study magnetization switching induced by spin-orbit torque in W (Pt)/Co/NiO heterostructures with variable thickness of W and Pt heavy-metal layers, a perpendicularly magnetized Co layer, and an antiferromagnetic NiO layer. Using current-driven switching and magnetoresistance and anomalous-Hall-effect measurements, we determine the perpendicular and in-plane exchange-bias field. Several Hall-bar devices possessing in-plane exchange bias from both systems are selected and analyzed in relation to our analytical switching model of the critical current density as a function of Pt and W thickness, resulting in estimation of the effective spin Hall angle and perpendicular effective magnetic anisotropy. We demonstrate in both the Pt/Co/NiO system and the W/Co/NiO system deterministic Co magnetization switching without an external magnetic field, which is replaced by an in-plane exchange-bias field. Moreover, we show that due to a higher effective spin Hall angle in the W-based system than in the Pt-based system, the relative difference between the resistance states in the magnetization current switching to the difference between the resistance states in magnetic field switching determined by the anomalous Hall effect (ΔR/ΔRAHE) is about twice as high in W-based devices than in Pt-based devices, while the critical switching-current density in W-based devices is 1 order lower than in Pt-based devices. The current-switching stability and the training process are discussed in detail.

关键词： Exchange bias Magnetization switching Spin torque Spin-orbit coupling Spintronics Antiferromagnets Magnetic multilayers Transition metal oxides

来源：评论

学校读者我要写书评

暂无评论

Simple sufficient condition for subspace to be completely or genuinely entangled

arXiv

引用

arXiv 2021年

作者： Demianowicz, MacIej Rajchel-Mieldzioć, Grzegorz Augusiak, Remigiusz Institute of Physics and Applied Computer Science Faculty of Applied Physics and Mathematics Gdańsk University of Technology Narutowicza 11/12 Gdańsk80-233 Poland Center for Theoretical Physics Polish Academy of Sciences Aleja Lotników 32/46 Warsaw02-668 Poland

We introduce a simple sufficient criterion, which allows one to tell whether a subspace of a bipartite or multipartite Hilbert space is entangled. The main ingredient of our criterion is a bound on the minimal entanglement of a subspace in terms of entanglement of vectors spanning that subspace expressed for geometrical measures of entanglement. The criterion is applicable to both completely and genuinely entangled subspaces. We explore its usefulness in several important scenarios. Further, an entanglement criterion for mixed states following directly from the condition is stated. As an auxiliary result we provide a formula for the generalized geometric measure of entanglement of the d-level Dicke states. Copyright © 2021, The Authors. All rights reserved.

关键词： Geometry

来源：评论

学校读者我要写书评

暂无评论

Self-sanitizing reusable glove via 3D-printing and common mold making method

引用

Materials Today: Proceedings 2023年

作者： Sadasivuni, Kishor Kumar Maurya, Muni Raj Houkan, Mohammad Talal Cabibihan, John-John Geetha, Mithra Al-Maadeed, Somaya Omar, Hafsa Asli, Noor Asnida Center for Advanced Materials Qatar University PO Box 2713 Doha Qatar Department of Mechanical and Industrial Engineering Qatar University PO Box 2713 Doha Qatar Department of Computer Science and Engineering Qatar University PO Box 2713 Doha Qatar School of Physics and Material Studies Faculty of Applied Sciences Universiti Teknologi MARA Shah Alam 40450 Selangor Malaysia NANO-Scitech Lab Centre for Functional Materials and Nanotechnology Institute of Science Universiti Teknologi MARA Malaysia

In health care and public health practice, it is critical to settings control practices that are critical to reducing the transmission of infections through cross-contamination. To provide protection from cross-contamination, use and throw gloves are routinely used. However, single-time use and inconsistent sanitization of used gloves remain a large problem and elevate the risk of catching viruses, germs, pathogens, and contaminants. The study reports reusable self-sanitizing gloves via 3D-printing and common hand molding methods. The major contribution is frequent self-sanitization of gloves without any manual intervention. The elastomeric material is used for fabricating gloves and continuous channels are embedded within the elastomeric material that runs through the entire glove surface, covering the front, back, and fingers. Elastomeric material allows the engagement of fingers for gripping objects. While the embedded channel is provided with uniformly spaced openings to eject the sanitizing solution. The glove surface is textured with a porous morphology that acts as mini and micro reservoirs for sterilizing solution ejected through embedded channel opening. The embedded channel is connected to a sanitizing solution storage tank. The incorporation of sanitizing solution storage tank enables its usage over a longer period. This uniquely constructed design of the gloves even assists in the effective sterilization of infected surface that comes in contact with the gloves. The gloves can be customized to improve comfortability by fabricating them from the 3D-printed mound developed based on the palm size of the user. The developed technology can be used by individuals working in hospitals, the transport sector, delivery units, schools, offices, industries, etc. We strongly believe that this technology will be highly useful in minimizing the risk of getting infected through cross-contamination and will help in maintaining hygienic as well as safe surroundings. © 202

关键词： Viruses

来源：评论

学校读者我要写书评

暂无评论

Interdigital CPW Metamaterial Surfaces for Modern Wireless Communication Systems

Interdigital CPW Metamaterial Surfaces for Modern Wireless C...

引用

International Symposium on Antennas and Propagation (ISAP)

作者： Pongsathorn Chomtong Nonchanutt Chudpooti Piyaporn Krachodnok Prayoot Akkaraekthalin Department of Teacher Training in Electrical Engineering Faculty of Technical Education King Mongkut’s University of Technology North Bangkok Bangkok Thailand Department of Industrial Physics and Medical Instrumentation Faculty of Applied Science King Mongkut’s University of Technology North Bangkok Bangkok Thailand Institute of Engineering School of Telecommunication Engineering Suranaree University of Technology Nakhon Ratchasima Thailand Department of Electrical and Computer Engineering Faculty of Engineering King Mongkut’s University of Technology North Bangkok Bangkok Thailand

This paper proposes the design of metamaterial surfaces based on interdigital coplanar waveguide (CPW) unit cells. By using this technique, the unit cell can have negative permeability with size reduction to λ/8. The result causes from the slow wave effect on transmission line in the structure, which electrical and physical lengths of transmission line are not equal from that effect. The proposed matamaterial surfaces at some resonant frequencies have been designed and used as reflectors and directors applied for antenna applications. Using the designed reflectors or directors, the antenna performances have been increased. The proposed metamaterial surfaces will be appropriate for modern wireless communication systems.

关键词：

来源：评论

学校读者我要写书评

暂无评论

What excites the optical emission in X-ray-selected galaxies?

arXiv

引用

arXiv 2024年

作者： Pulatova, N.G. Rix, H.-W. Tugay, A.V. Zadorozhna, L.V. Seeburger, R. Demianenko, M. Max-Planck-Institute for Astronomy Königstuhl 17 HeidelbergD-69117 Germany Main Astronomical Observatory of the National Academy of Sciences of Ukraine Akademika Zabolotnoho str. 27 Kyiv03143 Ukraine Department of physics Taras Shevchenko Kyiv National University Glushkova 2 ave. building 1 Kyiv03680 Ukraine Niels Bohr Institute Experimental Particle Physics Blegdamsvej 17 København Copenhagen2100 Denmark Jagiellonian University Faculty of Physics Astronomy and Applied Computer Science ul. prof. Stanislawa Lojasiewicza 11 Krakow30-348 Poland

We present a study of 1347 galaxies at z 10(LX/LHα) StarXR /LTotalXray > 0.5. In contrast, the positions of the sample members in the BPT diagram exhibit no dependence on the X-ray hardness ratio. Our finding suggests that the X-ray-to-Hα ratio can help us to differentiate galaxies whose X-ray flux is dominated by an AGN from galaxies with central X-ray binaries and other stellar X-ray sources. © 2024, CC BY.

关键词： Active Galactic Nuclei

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：