Search Results - J. Zhang

In this work Raman spectroscopy was used for extensive characterization of multiwall carbon nanotube (MWNTs) and of MWCNTs/rubber composites. We have measured the Raman spectra of bundled and dispersed multiwall carbon nanotubes. All the Raman bands of the carbon nanotubes are seen to shift to highe...

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The problem of translation of tourist texts from Chinese into Russian is considered. The relevance of the work is determined by the demand for the results of cultural communication research, including those in the tourism sector, which is developed in accordance with the trends typical to internatio...

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editorial

We present a novel approach in designing high-throughput high-resolution apertureless near-field scanning probes with enhanced nanofocusing based on graphene plasmonics. Extremely localized plasmons on graphene are mingled with nanofocusing of surface plasmon polaritons to confine and steer the plas...

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In recent years, asteroid exploration has become an important research direction in the field of deep space exploration. The weak gravitational environment of asteroids, as well as their complex topographic, geomorphic, and dynamic characteristics, pose significant technical challenges to surface ex...

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Cultivated land is fundamental to human survival and development. China attaches great importance to the utilization and protection of cultivated land. In the field of administrative law enforcement, the Ministry of Natural Resources, as the competent authority, has regularly released text of cases...

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<p>Technologies such as machine learning and deep learning are powering the discovery of meaningful patterns in Earth science big data. In the field of mineralogy, Mindat (“mindat.org”) is one of the largest databases. Although its front-end website is open and free, a machine interface for bu...

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Impervious Surface Area (ISA) is vital for urban planning, environmental monitoring, and water management. Traditional remote sensing methods struggle with complex urban landscapes, leading to accuracy limitations. To address this, we propose RU-Net++, a deep learning-based ISA extraction model inte...

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This paper analyzes the heat extraction performance of EGS (Enhanced Geothermal Systems) under complex fractures based on Darcy’s law and porous media heat transfer theory, and investigates the effects of reservoir parameters, injection and extraction parameters, fracture distribution, fracture thic...

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Цель. Ленватиниб одобрен для лечения пациентов с радиойодрефрактерным дифференцированным раком щитовидной железы (РР-ДРЩЖ) в СШ А в 2015 г. Целью исследования является оценка клинической эффективности ленватиниба у пациентов с РР-ДРЩЖ, получавших монотерапию этим препаратом в качестве 1‑й линии в СШ...

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Abstract Eutectic high‐entropy alloys (EHEAs), characterized by their combination of hard and ductile phases, hold broad application prospects in terms of mechanical properties. However, the current performance of these alloys is not satisfactory. Herein, a new design approach is presented for EHEAs...

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A new photonic microwave image rejection mixer that can achieve high conversion efficiency and has a wide bandwidth is presented. It is based on an integrated dual-parallel Mach&#x2013;Zehnder modulator (MZM) with a 90&#x00B0; polarization rotator on one branch of the modulator. The two modu...

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A comparison of the dielectric characteristics (relative permittivity, dielectric loss tangent, band gap, leakage current and breakdown voltage) of hafnium and hafnium-zirconium oxide films was carried out. It is shown that pulsed reactive magnetron sputtering of a Hf target in an Ar/O2 working gas...

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A novel bio-based flame retardant (Phytic acid – trometamol, PA-THAM) was prepared via salt formation reaction between phytic acid and trometamol. The chemical structure and thermal stability of this novel phytate were characterized by Nuclear magnetic resonance spectroscopy (NMR), Fourier transform...

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This work reports the synthesis of a series of shape memory polyimides by polycondensation of 2,2′-bis[4-(3-aminophenoxy)phenyl]hexafluoropropane (m-6FBAPP), 4,4′-(hexafluoroisopropylidene) (6FDA) and PA-terminated OAPS. The influence upon shape memory properties by the introduction of PA-terminated...

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The crystallization of polymers, caused by flow fields in the melt, has been the subject of extensive studies for many years. In this study, we use periodical shear to induce polypropylene to form multi-layer structure, which is usually observed in plants. Two interesting points were found: firstly,...

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We report on a high-peak-power acousto-optically Q-switched Er:Y₂O₃ ceramic laser operating at room temperature. Stable pulses with a duration of 41&#x2013;190 ns (FWHM) are generated at approximately 2.7 &#x03BC;m with the repetition rate varyin...

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Mass transfer and accretion are very important to understand the evolution and observational properties of cataclysmic variables (CVs). Due to the lack of an accretion disk, eclipsing profiles of polars are the best source to study the character of mass transfer in CVs. By analyzing long-term photom...

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ABSTRACT: This study developed a novel analytical method integrating liquid-liquid extraction with solid-phase extraction for simultaneous detection of oxyclozanide (OXY) and levamisole hydrochloride (LMS) residues in milk using ultra-high-performance liquid chromatography tandem MS (UPLC-MS/MS). Me...

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In this paper, we report polarization-locked vector soliton (PLVS) generation in a linear thulium-doped fiber laser. The fiber laser was composed of all-anomalous-dispersion fibers, passively mode-locked with a semiconductor saturable absorber mirror. Approximately 1.2-ps single vector soliton pulse...

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