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Strategies to achieve high performance piezoelectric nanogenerators EI Scopus SCIE
期刊论文 | 2019 , 55 , 288-304 | Nano Energy
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Abstract :

© 2018 Elsevier Ltd Piezoelectric nanogenerators have attracted much attention in the past decade. In this study, the development of piezoelectric nanogenerators and their progress toward high power generation is discussed. The characteristics and application range of numerous types of piezoelectric nanogenerators are also considered. In addition, several strategies that may improve the performance of piezoelectric nanogenerators are summarized. Here, we compare the open circuit voltages and short circuit currents of various piezoelectric nanogenerators under different factors, and the current problems of piezoelectric nanogenerators are also discussed. Finally, the future prospects and directions of piezoelectric nanogenerators are predicted. Future studies should be focused on the production of high-performance materials, the establishment of working principle and simulation model, the integration of nanogenerator, and the design of the energy harvesting circuit. Hence, it is emergency to search for functional materials with high piezoelectricity and further improve the electromechanical properties of existing piezoelectric materials. Moreover, further research is needed to increase the stability and flexibility of composite materials, to develop wearable and embedded flexible functional devices based on the biocompatibility of inorganic nanoparticles, and to supply power for microelectronic systems.

Keyword :

BaTiO3 Chemical doping Composite thin film materials Nanostructure Piezoelectric nanogenerators PVDF

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GB/T 7714 Hu, Dengwei , Yao, Minggang , Fan, Yong et al. Strategies to achieve high performance piezoelectric nanogenerators [J]. | Nano Energy , 2019 , 55 : 288-304 .
MLA Hu, Dengwei et al. "Strategies to achieve high performance piezoelectric nanogenerators" . | Nano Energy 55 (2019) : 288-304 .
APA Hu, Dengwei , Yao, Minggang , Fan, Yong , Ma, Chunrui , Fan, Mingjin , Liu, Ming . Strategies to achieve high performance piezoelectric nanogenerators . | Nano Energy , 2019 , 55 , 288-304 .
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A "crab-like" A6 relativistic magnetron with diffraction output driven by a transparent cathode SCIE
期刊论文 | 2019 , 26 (1) | PHYSICS OF PLASMAS
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We present the design of an A6 relativistic magnetron with diffraction output (MDO) which looks like a crab and we named it the "crab-like" A6 MDO. This article shows that the crab-like A6 MDO driven by a transparent cathode can radiate the TE11 mode with an output power of about 1 GW when an optimized applied voltage of U = 440 kV and magnetic field of B = 0: 43 T are used. Its electronic efficiency, as obtained using UNIPIC particle-in-cell (PIC) simulations, can be as high as 44% in S-band. The UNIPIC PIC code used in simulations also demonstrates that the crab-like A6 MDO can radiate both two electron spokes in the TE21 mode with an operating frequency of 2.1GHz and four electron spokes in the TE21 mode with an operating frequency of 2.5GHz when different magnetic field amplitudes are used for an applied voltage of U = 400 kV. This result suggests that this configuration is favorable for mode switching. This work seeks to design a compact high power microwave source for a narrowband directed microwave wave beam that is suitable for mode switching investigations. Published under license by AIP Publishing.

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GB/T 7714 Liu, M. , Schamiloglu, E. , Fuks, M. I. et al. A "crab-like" A6 relativistic magnetron with diffraction output driven by a transparent cathode [J]. | PHYSICS OF PLASMAS , 2019 , 26 (1) .
MLA Liu, M. et al. "A "crab-like" A6 relativistic magnetron with diffraction output driven by a transparent cathode" . | PHYSICS OF PLASMAS 26 . 1 (2019) .
APA Liu, M. , Schamiloglu, E. , Fuks, M. I. , Liu, C. , Jiang, W. , Feng, J. . A "crab-like" A6 relativistic magnetron with diffraction output driven by a transparent cathode . | PHYSICS OF PLASMAS , 2019 , 26 (1) .
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Tuning the Magnetic Anisotropy of Fe3O4/Pt Heterostructures Fabricated by Atomic Layer Deposition With In Situ Magnetic Field SCIE
期刊论文 | 2019 , 55 (3) | IEEE TRANSACTIONS ON MAGNETICS
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Abstract :

Research on tuning the magnetic anisotropy of magnetic heterostructures has been receiving intensive attentions due to their intriguing tuning phenomena. In particular, tuning the magnetic anisotropy by in situ magnetic field during the fabrication process allows a remarkable control of magnetism with energy efficiency and shows significant potential applications for compact, fast, and low-power microwave and electronic devices. In this paper, in situ external out-of-plane and in-plane magnetic fields were applied during the deposition of Fe3O4 thin films on Pt substrates by atomic layer deposition at different temperatures (350 degrees C, 400 degrees C, and 450 degrees C). The effects of in situ magnetic field with different directions on the surface morphologies and magnetic properties of Fe3O4/Pt heterostructures were characterized. It was found that both the out-of-plane and in-plane external magnetic fields tuned the magnetic anisotropy of ferromagnetic Fe3O4 when deposited at 400 degrees C with the maximum resonance field changes of 620 and 1930 Oe along in-plane and out-of-plane directions, respectively. This paper achieves tuning the magnetic properties through in situ magnetic field and provides a possibility for spintronic devices.

Keyword :

Fe3O4/Pt heterostructures magnetic anisotropy Atomic layer deposition (ALD) in situ magnetic field

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GB/T 7714 Zhang, Le , Zhou, Ziyao , Zhang, Yijun et al. Tuning the Magnetic Anisotropy of Fe3O4/Pt Heterostructures Fabricated by Atomic Layer Deposition With In Situ Magnetic Field [J]. | IEEE TRANSACTIONS ON MAGNETICS , 2019 , 55 (3) .
MLA Zhang, Le et al. "Tuning the Magnetic Anisotropy of Fe3O4/Pt Heterostructures Fabricated by Atomic Layer Deposition With In Situ Magnetic Field" . | IEEE TRANSACTIONS ON MAGNETICS 55 . 3 (2019) .
APA Zhang, Le , Zhou, Ziyao , Zhang, Yijun , Peng, Bin , Ren, Wei , Ye, Zuo-Guang et al. Tuning the Magnetic Anisotropy of Fe3O4/Pt Heterostructures Fabricated by Atomic Layer Deposition With In Situ Magnetic Field . | IEEE TRANSACTIONS ON MAGNETICS , 2019 , 55 (3) .
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Voltage-Tuned Transport Properties and Ferromagnetic Resonance in Lanthanum-Strontium-Manganite/Lead-Magnesium-Niobate-Lead-Titanate Multiferroic Heterostructures EI SCIE Scopus
期刊论文 | 2018 , 9 | IEEE MAGNETICS LETTERS
WoS CC Cited Count: 1
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Abstract :

We demonstrate piezostrain-induced modulation of transport and ferromagnetic resonance (FMR) properties in the La0.5Sr0.5MnO3 (LSMO5)/0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) (PMN-PT) (0 0 1) multiferroic heterostructures. The poling strain leads to the enhancement of the double exchange interaction and the reduction of Jahn-Teller electron-lattice distortion in the LSMO5 film, showing a maximum resistance decrease of 27% at 105 K, around which temperature the maximum magnetoresistance change of 10% is tuned by the piezostrain. The FMR response to the strain changes is probed by temperature-dependent electron spin resonance spectra, showing the largest FMR field shift of 220 Oe at the Neel temperature of 193 K. The magnetoelectric coupling behavior at the antiferromagnetic phase of LSMO5 film was dominated by the two-magnon scattering effect, which provides a new route for voltage-controllable magnetism in future spintronic devices.

Keyword :

two-magnon scattering antiferromagnetism Magneto-electronics magneto-electric coupling multiferroic heterostructures

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GB/T 7714 Zhu, Mingmin , Hu, Zhongqiang , Li, Chao et al. Voltage-Tuned Transport Properties and Ferromagnetic Resonance in Lanthanum-Strontium-Manganite/Lead-Magnesium-Niobate-Lead-Titanate Multiferroic Heterostructures [J]. | IEEE MAGNETICS LETTERS , 2018 , 9 .
MLA Zhu, Mingmin et al. "Voltage-Tuned Transport Properties and Ferromagnetic Resonance in Lanthanum-Strontium-Manganite/Lead-Magnesium-Niobate-Lead-Titanate Multiferroic Heterostructures" . | IEEE MAGNETICS LETTERS 9 (2018) .
APA Zhu, Mingmin , Hu, Zhongqiang , Li, Chao , Xue, Xu , Yang, Guang , Ren, Wei et al. Voltage-Tuned Transport Properties and Ferromagnetic Resonance in Lanthanum-Strontium-Manganite/Lead-Magnesium-Niobate-Lead-Titanate Multiferroic Heterostructures . | IEEE MAGNETICS LETTERS , 2018 , 9 .
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Large Piezoelectric Strain with Superior Thermal Stability and Excellent Fatigue Resistance of Lead-Free Potassium Sodium Niobate-Based Grain Orientation-Controlled Ceramics EI SCIE PubMed Scopus
期刊论文 | 2018 , 10 (12) , 10220-10226 | ACS APPLIED MATERIALS & INTERFACES
WoS CC Cited Count: 2 SCOPUS Cited Count: 4
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Abstract :

Environment-friendly lead-free piezoelectric materials with high piezoelectric response and high stability in a wide temperature range are urgently needed for various applications. In this work, grain orientation-controlled (with a 90% < 001 >(c)-oriented texture) (K,Na)NbO3-based ceramics with a large piezoelectric response (d(33)*) = 505 pm V-1 and a high Curie temperature (T-C) of 247 degrees C have been developed. Such a high d(33)* value varies by less than 5% from 30 to 180 degrees C, showing a superior thermal stability. Furthermore, the high piezoelectricity exhibits an excellent fatigue resistance with the d(33)* value decreasing within only by 6% at a field of 20 kV cm(-1) up to 10(7) cycles. These exceptional properties can be attributed to the vertical morphotropic phase boundary and the highly < 001 >(c)-oriented textured ceramic microstructure. These results open a pathway to promote lead-free piezoelectric ceramics as a viable alternative to lead-based piezoceramics for various practical applications, such as actuators, transducers, sensors, and acoustic devices, in a wide temperature range.

Keyword :

RTGG thermal stability large piezoelectric strain lead-free piezoelectric ceramics KNN-based ceramics

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GB/T 7714 Quan, Yi , Ren, Wei , Niu, Gang et al. Large Piezoelectric Strain with Superior Thermal Stability and Excellent Fatigue Resistance of Lead-Free Potassium Sodium Niobate-Based Grain Orientation-Controlled Ceramics [J]. | ACS APPLIED MATERIALS & INTERFACES , 2018 , 10 (12) : 10220-10226 .
MLA Quan, Yi et al. "Large Piezoelectric Strain with Superior Thermal Stability and Excellent Fatigue Resistance of Lead-Free Potassium Sodium Niobate-Based Grain Orientation-Controlled Ceramics" . | ACS APPLIED MATERIALS & INTERFACES 10 . 12 (2018) : 10220-10226 .
APA Quan, Yi , Ren, Wei , Niu, Gang , Wang, Lingyan , Zhao, Jinyan , Zhang, Nan et al. Large Piezoelectric Strain with Superior Thermal Stability and Excellent Fatigue Resistance of Lead-Free Potassium Sodium Niobate-Based Grain Orientation-Controlled Ceramics . | ACS APPLIED MATERIALS & INTERFACES , 2018 , 10 (12) , 10220-10226 .
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Thermal Driven Giant Spin Dynamics at Three-Dimensional Heteroepitaxial Interface in Ni0.5Zn0.5Fe2O4/BaTiO3-Pillar Nanocomposites EI SCIE PubMed Scopus
期刊论文 | 2018 , 12 (4) , 3751-3758 | ACS NANO
WoS CC Cited Count: 1 SCOPUS Cited Count: 1
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Abstract :

Traditional magnetostrictive/piezoelectric laminated composites rely on the two-dimensional interface that transfers stress/strain to achieve the large magnetoelectric (ME) coupling, nevertheless, they suffer from the theoretical limitation of the strain effect and of the substrate clamping effect in real ME applications. In this work, 3D NZFO/BTO-pillar nanocomposite films were grown on SrTiO3 by template-assisted pulsed laser deposition, where BaTiO3 (BTO) nanopillars appeared in an array with distinct phase transitions as the cores were covered by NiZn ferrite (NZFO) layer. The perfect 3D heteroepitaxial interface between BTO and NZFO phases can be identified without any edge dislocations, which allows effective strain transfer at the 3D interface. The 3D structure nanocomposites enable the strong two magnon scattering (TMS) effect that enhances ME coupling at the interface and reduces the clamping effect by strain relaxation. Thereby, a large FMR field shift of 1866 Oe in NZFO/BTO-pillar nanocomposite was obtained at the TMS critical angle near the BTO nanopillars phase transition of 255 K.

Keyword :

3D nanostructure ferromagnetic resonance magnetoelectric coupling multiferroic spinel ferrite

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GB/T 7714 Dong, Guohua , Zhou, Ziyao , Guan, Mengmeng et al. Thermal Driven Giant Spin Dynamics at Three-Dimensional Heteroepitaxial Interface in Ni0.5Zn0.5Fe2O4/BaTiO3-Pillar Nanocomposites [J]. | ACS NANO , 2018 , 12 (4) : 3751-3758 .
MLA Dong, Guohua et al. "Thermal Driven Giant Spin Dynamics at Three-Dimensional Heteroepitaxial Interface in Ni0.5Zn0.5Fe2O4/BaTiO3-Pillar Nanocomposites" . | ACS NANO 12 . 4 (2018) : 3751-3758 .
APA Dong, Guohua , Zhou, Ziyao , Guan, Mengmeng , Xue, Xu , Chen, Mingfeng , Ma, Jing et al. Thermal Driven Giant Spin Dynamics at Three-Dimensional Heteroepitaxial Interface in Ni0.5Zn0.5Fe2O4/BaTiO3-Pillar Nanocomposites . | ACS NANO , 2018 , 12 (4) , 3751-3758 .
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A new kind of thermocouple made of p-type and n-type semi-conductive oxides with giant thermoelectric voltage for high temperature sensing EI SCIE Scopus
期刊论文 | 2018 , 6 (13) , 3206-3211 | JOURNAL OF MATERIALS CHEMISTRY C
WoS CC Cited Count: 5 SCOPUS Cited Count: 5
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Abstract :

A new kind of thermocouple consisting of n-type and p-type semi-conductive oxides with a giant thermoelectric voltage is reported. The thermocouple was fabricated from n-type La0.8Sr0.2CrO3 and p-type In2O3 and it exhibits a high thermoelectric voltage of 410.3 mV at 1270 degrees C, which is the highest value reported for any type of thermocouples to date. This achievement challenges the long-established material selection principles for thermocouples and opens a new way for designing highly sensitive thermal sensors. The thermocouple developed in this work has great potential for practical applications in high temperature sensing in harsh environments.

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GB/T 7714 Liu, Dan , Shi, Peng , Ren, Wei et al. A new kind of thermocouple made of p-type and n-type semi-conductive oxides with giant thermoelectric voltage for high temperature sensing [J]. | JOURNAL OF MATERIALS CHEMISTRY C , 2018 , 6 (13) : 3206-3211 .
MLA Liu, Dan et al. "A new kind of thermocouple made of p-type and n-type semi-conductive oxides with giant thermoelectric voltage for high temperature sensing" . | JOURNAL OF MATERIALS CHEMISTRY C 6 . 13 (2018) : 3206-3211 .
APA Liu, Dan , Shi, Peng , Ren, Wei , Liu, Yantao , Niu, Gang , Liu, Ming et al. A new kind of thermocouple made of p-type and n-type semi-conductive oxides with giant thermoelectric voltage for high temperature sensing . | JOURNAL OF MATERIALS CHEMISTRY C , 2018 , 6 (13) , 3206-3211 .
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Temperature induced interface and optical properties of the multi-layer nanotube network EI SCIE Scopus
期刊论文 | 2018 , 123 (22) | JOURNAL OF APPLIED PHYSICS
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The ever-increasing demand for larger surface area, well-defined, and conformal multi-layer nanostructures in gas sensor, catalyst and solar cell applications has propelled the exploration of such nanostructures within an atomic resolution. The atomic layer deposition (ALD) technique is ideal for the synthesis of these nanostructures due to its excellent step coverage ability on high aspect ratio nanostructures. In this work, different coaxial nanotube networks are successfully fabricated by electrospinning and ALD, with a well-controlled phase. We systematically studied the temperature-induced microstructures and photoluminescence property evolution of the nanotube network. The Al2O3/ZnO/Al2O3 tri-layer nanotube network is obtained by sintering at 400 degrees C, and a ZnAl2O4 core-shell nanotube structure has formed by the Kirkendall effect by further post-annealing at 700 degrees C. Oxygen accumulation is clearly observed at the small neck feature, but the Zn and Al elements are uniformly distributed along the whole nanotube. Photoluminescence emission obtained in this work is so broad that it almost covers the whole visible light wavelength range. The results indicate that the microstructures and photoluminescence properties can be well-controlled by the post-annealing temperature. It provides an available platform for realizing conformal 3D nano-devices. Published by AIP Publishing.

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GB/T 7714 Zhang, Yijun , Liu, Ming , Peng, Bin et al. Temperature induced interface and optical properties of the multi-layer nanotube network [J]. | JOURNAL OF APPLIED PHYSICS , 2018 , 123 (22) .
MLA Zhang, Yijun et al. "Temperature induced interface and optical properties of the multi-layer nanotube network" . | JOURNAL OF APPLIED PHYSICS 123 . 22 (2018) .
APA Zhang, Yijun , Liu, Ming , Peng, Bin , Zhou, Ziyao , Wang, Chenying , Jing, Weixuan et al. Temperature induced interface and optical properties of the multi-layer nanotube network . | JOURNAL OF APPLIED PHYSICS , 2018 , 123 (22) .
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Ionic liquid gating control of RKKY interaction in FeCoB/Ru/FeCoB and (Pt/Co)(2)/Ru/(Co/Pt)(2) multilayers SCIE PubMed Scopus
期刊论文 | 2018 , 9 | NATURE COMMUNICATIONS
WoS CC Cited Count: 14 SCOPUS Cited Count: 13
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To overcome the fundamental challenge of the weak natural response of antiferromagnetic materials under a magnetic field, voltage manipulation of antiferromagnetic interaction is developed to realize ultrafast, high-density, and power efficient antiferromagnetic spintronics. Here, we report a low voltage modulation of Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction via ionic liquid gating in synthetic antiferromagnetic multilayers of FeCoB/Ru/FeCoB and (Pt/Co)(2)/Ru/(Co/Pt)(2). At room temperature, the distinct voltage control of transition between antiferromagnetic and ferromagnetic ordering is realized and up to 80% of perpendicular magnetic moments manage to switch with a small-applied voltage bias of 2.5 V. We related this ionic liquid gating-induced RKKY interaction modification to the disturbance of itinerant electrons inside synthetic antiferromagnetic heterostructure and the corresponding change of its Fermi level. Voltage tuning of RKKY interaction may enable the next generation of switchable spintronics between antiferromagnetic and ferromagnetic modes with both fundamental and practical perspectives.

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GB/T 7714 Yang, Qu , Wang, Lei , Zhou, Ziyao et al. Ionic liquid gating control of RKKY interaction in FeCoB/Ru/FeCoB and (Pt/Co)(2)/Ru/(Co/Pt)(2) multilayers [J]. | NATURE COMMUNICATIONS , 2018 , 9 .
MLA Yang, Qu et al. "Ionic liquid gating control of RKKY interaction in FeCoB/Ru/FeCoB and (Pt/Co)(2)/Ru/(Co/Pt)(2) multilayers" . | NATURE COMMUNICATIONS 9 (2018) .
APA Yang, Qu , Wang, Lei , Zhou, Ziyao , Wang, Liqian , Zhang, Yijun , Zhao, Shishun et al. Ionic liquid gating control of RKKY interaction in FeCoB/Ru/FeCoB and (Pt/Co)(2)/Ru/(Co/Pt)(2) multilayers . | NATURE COMMUNICATIONS , 2018 , 9 .
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A Highly Thermostable In2O3/ITO Thin Film Thermocouple Prepared via Screen Printing for High Temperature Measurements EI SCIE PubMed Scopus
期刊论文 | 2018 , 18 (4) | SENSORS
WoS CC Cited Count: 4 SCOPUS Cited Count: 6
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An In2O3/ITO thin film thermocouple was prepared via screen printing. Glass additives were added to improve the sintering process and to increase the density of the In2O3/ITO films. The surface and cross-sectional images indicate that both the grain size and densification of the ITO and In2O3 films increased with the increase in annealing time. The thermoelectric voltage of the In2O3/ITO thermocouple was 53.5 mV at 1270 degrees C at the hot junction. The average Seebeck coefficient of the thermocouple was calculated as 44.5 mu V/degrees C. The drift rate of the In2O3/ITO thermocouple was 5.44 degrees C/h at a measuring time of 10 h at 1270 degrees C.

Keyword :

screen printing thermocouple thermoelectric response Seebeck coefficient

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GB/T 7714 Liu, Yantao , Ren, Wei , Shi, Peng et al. A Highly Thermostable In2O3/ITO Thin Film Thermocouple Prepared via Screen Printing for High Temperature Measurements [J]. | SENSORS , 2018 , 18 (4) .
MLA Liu, Yantao et al. "A Highly Thermostable In2O3/ITO Thin Film Thermocouple Prepared via Screen Printing for High Temperature Measurements" . | SENSORS 18 . 4 (2018) .
APA Liu, Yantao , Ren, Wei , Shi, Peng , Liu, Dan , Zhang, Yijun , Liu, Ming et al. A Highly Thermostable In2O3/ITO Thin Film Thermocouple Prepared via Screen Printing for High Temperature Measurements . | SENSORS , 2018 , 18 (4) .
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