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Showing 9985 to 9996 of 136941 entries
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Magnetic Solid-Phase Extraction Based on Fe₃O₄/g-C₃N₄ Nanocomposite for the Determination of Polychlorinated Biphenyls and Polychlorinated Diphenyl Ethers in Environmental Waters.

Journal of nanoscience and nanotechnology

Ji D, Zhang M, Geng X, Zha Z, Li Y, Yang J, Cui S.
PMID: 32711617
J Nanosci Nanotechnol. 2020 Dec 01;20(12):7469-7479. doi: 10.1166/jnn.2020.18868.

The graphitic carbon nitride (g-C₃N₄) and the Fe₃O₄/g-C₃N₄ magnetic materials were synthesized in this paper. The structures of the materials were confirmed by a series of analysis. The Fe₃O₄/g-C₃N₄ was then used as a sorbent to adsorb polychlorinated diphenyl...

Modification Effects of Nano-CaCO₃ on Engineering Performance of Cement Grouts.

Journal of nanoscience and nanotechnology

Qiu X, Jiang H, Zhang G.
PMID: 32126697
J Nanosci Nanotechnol. 2020 Aug 01;20(8):5043-5048. doi: 10.1166/jnn.2020.18487.

Efficacy of added nano-CaCO₃ (NC) on engineering performances, including fluidity, initial setting time, bleeding rate and yield stress of cement grouts was investigated in this study. Results showed that the fluidity and bleeding rate for NC-cement (NCC) composite grout...

Effect of Friction Stir Welding Parameters on Microstructure and Properties of Welded 5083 Aluminium Alloy.

Journal of nanoscience and nanotechnology

Hao L, Jia R, Zhai X, Zhang H, Hou J.
PMID: 32126699
J Nanosci Nanotechnol. 2020 Aug 01;20(8):5055-5063. doi: 10.1166/jnn.2020.18502.

The friction stir welding (FSW) parameters were designed in this study by orthogonal experimental method. The microstructure, mechanical properties and corrosion behavior of corresponding FSW joints of 5083 aluminium alloy (AA5083) were also investigated. Scanning Kelvin probe force microscopy...

Tailoring the Grain Boundary Chemistry of Polymeric Carbon Nitride for Enhanced Solar Hydrogen Production and CO.

Angewandte Chemie (International ed. in English)

Zhang G, Li G, Heil T, Zafeiratos S, Lai F, Savateev A, Antonietti M, Wang X.
PMID: 30650229
Angew Chem Int Ed Engl. 2019 Mar 11;58(11):3433-3437. doi: 10.1002/anie.201811938. Epub 2019 Feb 12.

Photocatalytic water splitting is a promising and clean way to mimic plant photosynthesis in a sustainable manner. Improvements of the quantum efficiency and optical absorption in the relevant range are necessary steps to approach practicality. Herein, we reported that...

Bamboo-Shaped Carbon Nanotubes on Coal Fly Ash Cenospheres for Pb(II) Adsorption.

Journal of nanoscience and nanotechnology

Zhang X, Li J, He B, Li H, Qi C, Zhang L, Peng Y, Li Y.
PMID: 32126704
J Nanosci Nanotechnol. 2020 Aug 01;20(8):5089-5095. doi: 10.1166/jnn.2020.18480.

The structural defects of bamboo-shaped carbon nanotubes (B-CNTs) provide abundant active sites for ion adsorption during wastewater treatment. However, a suitable supporting material for the growth of B-CNTs growth is less reported. In this paper, the catalytic growth of...

Large-area multispectral superconducting nanowire single-photon detector.

Applied optics

Wang H, Li H, You L, Hu P, Zhang X, Yong W, Zhang W, Yang X, Zhang L, Zhou H, Wang Z, Xie X.
PMID: 31674484
Appl Opt. 2019 Oct 20;58(30):8148-8152. doi: 10.1364/AO.58.008148.

In this work, we report a large-active-area multispectral superconducting nanowire single-photon detector for free-space applications. The detector is realized by fabricating NbTiN nanowire with an active area of 35 µm diameter on two serially connected dielectric mirrors that can...

Simultaneous measurement of refractive index, strain, and temperature based on a Mach-Zehnder interferometer with hybrid structure optical fiber.

Applied optics

Gao X, Ning T, Zheng J, Li J, Pei L, Zhang C, Liu L, He X.
PMID: 31674494
Appl Opt. 2019 Oct 20;58(30):8187-8193. doi: 10.1364/AO.58.008187.

An optical fiber sensor based on a Mach-Zehnder interferometer with hybrid structure optical fiber for simultaneous measurement of refractive index (RI), strain, and temperature is proposed and demonstrated. The proposed structure is a hybrid structure based on a non-core...

Relative intensity noise of a mid-infrared quantum cascade laser: insensitivity to optical feedback.

Optics express

Zhao BB, Wang XG, Zhang J, Wang C.
PMID: 31674540
Opt Express. 2019 Sep 16;27(19):26639-26647. doi: 10.1364/OE.27.026639.

This article experimentally demonstrates that the relative intensity noise (RIN) of a mid-infrared quantum cascade laser is insensitive to the optical feedback for feedback ratios up to 31% (-5.1 dB). The RIN of the free-running laser is in the...

Tuning color and saving energy with spatially variable laser illumination.

Optics express

Zhang J, Smet KAG, Meuret Y.
PMID: 31674580
Opt Express. 2019 Sep 16;27(19):27136-27150. doi: 10.1364/OE.27.027136.

Previous studies have shown that the radiant flux that needs to be emitted by an illumination system, can be significantly reduced by optimizing its spectral power distribution to the object reflectance spectra, without inducing perceptible chroma or hue shifts...

Bright Free Exciton Electroluminescence from Mn-Doped Two-Dimensional Layered Perovskites.

The journal of physical chemistry letters

Zhang L, Jiang T, Yi C, Wu J, Liu XK, He Y, Miao Y, Zhang Y, Zhang H, Xie X, Wang P, Li R, Gao F, Huang W, Wang J.
PMID: 31119942
J Phys Chem Lett. 2019 Jun 06;10(11):3171-3175. doi: 10.1021/acs.jpclett.9b01326. Epub 2019 May 28.

Two-dimensional (2D) perovskites incorporating hydrophobic organic spacer cations show improved film stability and morphology compared to their three-dimensional (3D) counterparts. However, 2D perovskites usually exhibit low photoluminescence quantum efficiency (PLQE) owing to strong exciton-phonon interaction at room temperature, which...

Manual Acupuncture for Optic Atrophy: A Systematic Review and Meta-Analysis.

Evidence-based complementary and alternative medicine : eCAM

Zhi FY, Liu J, Ma XP, Hong J, Zhang J, Zhang D, Zhao Y, Wu LJ, Yang YT, Wu DY, Xie C, Wu LX, Zhang CH.
PMID: 30713567
Evid Based Complement Alternat Med. 2019 Jan 01;2019:1735967. doi: 10.1155/2019/1735967. eCollection 2019.

No abstract available.

Hydroclimate assessment of gridded precipitation products for the Tibetan Plateau.

The Science of the total environment

Wu Y, Guo L, Zheng H, Zhang B, Li M.
PMID: 30743947
Sci Total Environ. 2019 Apr 10;660:1555-1564. doi: 10.1016/j.scitotenv.2019.01.119. Epub 2019 Jan 14.

Precipitation is the main water source shaping the Tibetan Plateau (TP) to be the Asian "water tower," but it is challenging to estimate. It is crucial to assess the performances of the increasingly available precipitation products for hydroclimate research...

Showing 9985 to 9996 of 136941 entries