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  1. Article ; Online: Intensity Equalization of Bidirectional Fiber Laser Based on a Non-Reciprocal Optical Attenuator.

    Wang, Wenrui / Xu, Bowen / Ye, Lingyun / Song, Kaichen

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 9

    Abstract: The application of a bidirectional laser requires the laser intensity in both directions to be balanced. However, the CW and CCW light intensities in current bidirectional erbium-doped fiber laser experiments differ due to the gain competition effect. ... ...

    Abstract The application of a bidirectional laser requires the laser intensity in both directions to be balanced. However, the CW and CCW light intensities in current bidirectional erbium-doped fiber laser experiments differ due to the gain competition effect. There is no report on equalizing the intensity in the CW and CCW directions. This paper proposes a bidirectional non-reciprocal optical attenuator using the Faraday optical rotation effect. Continuous attenuation adjustment is realized by changing the angle between the polarizer's transmission axis and the linear polarized light. In this study, we analyzed the influence of different parameters on the device's performance, built a non-reciprocal attenuator, and tested the bidirectional attenuation curve, which was consistent with the simulation results. The device was integrated into a bidirectional fiber laser, and the light intensity in both directions was balanced through non-reciprocal adjustment. Combined with closed-loop control, the average intensity difference fluctuation between the two directions was controlled at 0.28% relative to the average power, realizing stable long-term bidirectional fiber laser intensity equalization.
    Language English
    Publishing date 2023-04-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23094360
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Preparation and characterization of silanized graphene oxide based polyacrylate composites in situ copolymerization.

    Zheng, Shaona / Ye, Lingyun / Zhong, Guoyu / Liao, Wenbo

    Journal of the mechanical behavior of biomedical materials

    2023  Volume 144, Page(s) 105985

    Abstract: In the present work, graphene oxide (GO) was initially prepared by the modified Hummers' method and then surface modification with 3-Methacryloxypropyltrimeth- oxysilane (MPS) was carried out. The silanized GO based polyacrylate (PA) composite emulsion ... ...

    Abstract In the present work, graphene oxide (GO) was initially prepared by the modified Hummers' method and then surface modification with 3-Methacryloxypropyltrimeth- oxysilane (MPS) was carried out. The silanized GO based polyacrylate (PA) composite emulsion was fabricated via in situ copolymerization. The covalent bonds formed between GO and PA matrix were proposed to improve the dispersion of MPS-GO in composites. FTIR spectra, Raman spectra, XPS and XRD data confirmed that oxidation and modification were occurred, and oxygen-containing functional groups and CC groups were introduced on the side of GO, respectively. Two kinds of structures were observed in composite latexes, and the average diameter of composite latexes (107 nm) was larger than that of PA latexes (87 nm). FTIR spectra also disclosed that reactive MPS-GO had already successfully copolymerized with the PA matrix. AFM images demonstrated that wrinkled GO nanosheets were homogeneously dispersed and incorporated into the PA matrix. The water contact angle (WCA) was found increasing as the addition of MPS-GO, although the composite films exhibited obvious hydrophilicity with increasing the content of MPS-GO.
    MeSH term(s) Water/chemistry ; Oxidation-Reduction ; Graphite/chemistry
    Chemical Substances graphene oxide ; Water (059QF0KO0R) ; Graphite (7782-42-5)
    Language English
    Publishing date 2023-06-19
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2378381-3
    ISSN 1878-0180 ; 1751-6161
    ISSN (online) 1878-0180
    ISSN 1751-6161
    DOI 10.1016/j.jmbbm.2023.105985
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Resolution-increased fiber-optic strain sensor with a large dynamic range driven by white light.

    Zhou, Biying / Wang, Wenrui / Bai, Xueqian / Hu, Jun / Chen, Bin / Ye, Lingyun / Song, Kaichen

    Optics letters

    2024  Volume 49, Issue 4, Page(s) 1057–1060

    Abstract: The white light interferometer is advantageous for wavelength division multiplexing (WDM), but the excessive noise floor limits its application in practicality. In this Letter, we propose a fiber-optic sensor driven by a broadband light source, which ... ...

    Abstract The white light interferometer is advantageous for wavelength division multiplexing (WDM), but the excessive noise floor limits its application in practicality. In this Letter, we propose a fiber-optic sensor driven by a broadband light source, which uses a fiber-optic Fabry-Perot cavity and a reference interferometer to enhance strain resolution. In the experiment, the strain resolution of a 5.86 m resonant sensor is 18.5 fɛ/
    Language English
    Publishing date 2024-02-07
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.510910
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  4. Article ; Online: Vaccination during pregnancy and modulation of IgG response to pertussis vaccines in infants: The impact of different vaccine formulations.

    Brousseau, Nicholas / Angers-Goulet, Marie-Elen / Bastien, Robin / Ye, Lingyun / Sadarangani, Manish / Halperin, Scott A

    Vaccine

    2024  Volume 42, Issue 9, Page(s) 2138–2143

    Abstract: The IgG response following infant diphtheria-tetanus-acellular pertussis (DTaP) immunization is influenced by the formulation of the infant and/or the adult vaccine (Tdap) given during pregnancy. DTaP vaccines containing either 3 (DTaP3) or 5 (DTaP5) ... ...

    Abstract The IgG response following infant diphtheria-tetanus-acellular pertussis (DTaP) immunization is influenced by the formulation of the infant and/or the adult vaccine (Tdap) given during pregnancy. DTaP vaccines containing either 3 (DTaP3) or 5 (DTaP5) pertussis antigens are commonly used. By conducting a secondary analysis of a large randomized controlled trial, we compared IgG levels against pertussis vaccine antigens in children of Td- and Tdap5-vaccinated mothers, after stratifying by infant vaccine formulation. After immunization with a primary series of DTaP5, but not DTaP3, IgG GMCs against pertussis antigens were significantly lower in infants of Tdap-immunized mothers compared with infants of Td-vaccinated mothers (pertussis toxin: GMC = 52.3[Tdap5] vs 83.5[Td], p < 0.001). Before and after the DTaP booster dose, IgG GMCs were similar in infants of Tdap- and Td-immunized mothers specifically when infants received the DTaP3 vaccine. The combination of the TdaP5 vaccine for mothers and the DTaP3 vaccine for children could attenuate Tdap-associated immunomodulation.
    MeSH term(s) Infant ; Adult ; Child ; Pregnancy ; Female ; Humans ; Whooping Cough/prevention & control ; Immunization, Secondary ; Vaccination ; Diphtheria-Tetanus-acellular Pertussis Vaccines ; Immunoglobulin G ; Antibodies, Bacterial ; Pertussis Vaccine
    Chemical Substances Diphtheria-Tetanus-acellular Pertussis Vaccines ; Immunoglobulin G ; Antibodies, Bacterial ; Pertussis Vaccine
    Language English
    Publishing date 2024-03-08
    Publishing country Netherlands
    Document type Randomized Controlled Trial ; Journal Article
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2024.03.015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Fabrication of poly (styrene-acrylate)/silver nanoparticle-graphene oxide composite antibacterial by in situ Pickering emulsion polymerization.

    Liao, Wenbo / Huang, Xiangxuan / Zhong, Guoyu / Ye, Lingyun / Zheng, Shaona

    Journal of the mechanical behavior of biomedical materials

    2023  Volume 144, Page(s) 105877

    Abstract: Graphene oxide (GO) nanosheets decorated with silver nanoparticles (AgNPs) were easily synthesized by chemical reduction, and the prepared nanocomposite was then used as a stabilizer in the Pickering emulsion polymerization of poly (styrene-acrylate) to ... ...

    Abstract Graphene oxide (GO) nanosheets decorated with silver nanoparticles (AgNPs) were easily synthesized by chemical reduction, and the prepared nanocomposite was then used as a stabilizer in the Pickering emulsion polymerization of poly (styrene-acrylate) to prepare PSA/AgNPs-GO composites. The AgNPs-GO nanocomposites were fully characterized by TEM, FTIR, Raman, SEM and XPS, which demonstrated that about 5-30 nm AgNPs with spherical, octahedral and cubic structures were decorated on the surface of wrinkled GO nanosheets. TEM photos and EDS spectrum of composites showed that the transparent GO nanosheets decorated with AgNPs were covered on the surface of PSA latexes and the AgNPs were uniformly dispersed on the surface of the PSA latexes without aggregation. The average diameter of composite latexes was obviously bigger than that of PSA latexes. However, the role of surfactant and the properties of hydrophilicity decreased the average diameter and WCA of composites while increasing the additions of AgNPs-GO nanocomposites. AFM images disclosed that wrinkled GO nanosheets decorated with AgNPs dispersed on the surface of composite films. XPS data proved clearly that silver was present only in metallic form and migration occurred during film-formation. TGA curves confirmed the composite film displayed better thermal stability than that of PSA. The results of antibacterial activity revealed that composite films had exhibited antibacterial properties against both E. coli and S. aureus, and the latter showed better antibacterial efficacy than the former. The nano-silver polyacrylate coatings with antibacterial activity explored in current work have wide application in the fields of wood coatings, leather finishing, and so on.
    MeSH term(s) Humans ; Male ; Metal Nanoparticles/chemistry ; Silver/chemistry ; Staphylococcus aureus ; Oxides/chemistry ; Emulsions ; Escherichia coli ; Polymerization ; Prostate-Specific Antigen ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/chemistry ; Styrenes ; Nanocomposites/chemistry
    Chemical Substances graphene oxide ; Silver (3M4G523W1G) ; Oxides ; Emulsions ; Prostate-Specific Antigen (EC 3.4.21.77) ; Anti-Bacterial Agents ; Styrenes
    Language English
    Publishing date 2023-05-01
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2378381-3
    ISSN 1878-0180 ; 1751-6161
    ISSN (online) 1878-0180
    ISSN 1751-6161
    DOI 10.1016/j.jmbbm.2023.105877
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Pneumomediastinum and subcutaneous emphysema secondary to dental extraction: Two case reports.

    Ye, Ling-Yun / Wang, Lian-Fei / Gao, Jin-Xing

    World journal of clinical cases

    2022  Volume 10, Issue 27, Page(s) 9904–9910

    Abstract: Background: Dental extraction is a common operation in oral surgery and is usually accompanied by pain, swelling, and local infection. The application of high-speed air turbines increases the comfort of alveolar surgery and makes it more minimally- ... ...

    Abstract Background: Dental extraction is a common operation in oral surgery and is usually accompanied by pain, swelling, and local infection. The application of high-speed air turbines increases the comfort of alveolar surgery and makes it more minimally-invasive. However, high-speed gas can enter the subcutaneous tissue of the face and neck or even the chest and mediastinum, which is a serious iatrogenic complication.
    Case summary: We describe two cases of severe subcutaneous and mediastinal emphysema caused by high-speed turbine splitting during dental extraction. The first case involved a 34-year-old man who complained of swelling of the face, mild chest tightness, and chest pain after dental extraction. Computed tomography (CT) scan showed a large amount of gas in the neck, chest wall, and mediastinum. The second case involved a 54-year-old woman who complained of swelling and pain of the neck after dental extraction. CT showed a large amount of gas collected in the neck and mediastinum. Both of them used high-speed turbine splitting during dental extraction.
    Conclusion: High-speed turbine splitting during dental extraction may lead to severe subcutaneous and mediastinal emphysema. Dentists should carefully operate to avoid emphysema. If emphysema occurs, CT can be used to improve the diagnosis. The patient should be informed, and the complications dealt with carefully.
    Language English
    Publishing date 2022-09-24
    Publishing country United States
    Document type Case Reports
    ISSN 2307-8960
    ISSN 2307-8960
    DOI 10.12998/wjcc.v10.i27.9904
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Cold Starting Temperature Drift Modeling and Compensation of Micro-Accelerometer Based on High-Order Fourier Transform.

    Wang, Yi / Sun, Xinglin / Huang, Tiantian / Ye, Lingyun / Song, Kaichen

    Micromachines

    2022  Volume 13, Issue 3

    Abstract: The traditional temperature modeling method is based on the full heating of the accelerometer to achieve thermal balance, which is not suitable for the cold start-up phase of the micro-accelerometer. For decreasing the complex temperature drift of the ... ...

    Abstract The traditional temperature modeling method is based on the full heating of the accelerometer to achieve thermal balance, which is not suitable for the cold start-up phase of the micro-accelerometer. For decreasing the complex temperature drift of the cold start-up phase, a new temperature compensation method based on a high-order Fourier transform combined model is proposed. The system structure and repeatability test of the micro digital quartz flexible accelerometer are provided at first. Additionally, we analyzed where the complex temperature drift of the cold start-up phase comes from based on the system structure and repeatability test. Secondly, a high-order temperature compensation model combined with K-means clustering and the symbiotic organisms search (SOS) algorithm is established with repeatability test data as training data. To verify the proposed temperature compensation model, a test platform was built to transmit the measured values before and after compensation with the proposed Fourier-related model and the other time-related model, which is also a model aiming at temperature compensation in the cold start-up phase. The experimental results indicate that the proposed method achieves better compensation accuracy compared with the traditional temperature compensation methods and the time-related compensation model. Furthermore, the compensation for the cold start-up phase has no effect on the original accuracy over the whole temperature range. The stability of the accelerometer can be significantly improved to about 30 μg in the start-up phase of different temperatures after compensation.
    Language English
    Publishing date 2022-03-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2620864-7
    ISSN 2072-666X
    ISSN 2072-666X
    DOI 10.3390/mi13030413
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  8. Article ; Online: Synergistic modulation of electrical and thermal transport toward promising n-type MgOCuSbSe

    Ye, Lingyun / Wei, Liuming / Hao, Yu / Ge, Mengyan / Shi, Xiaobo / Zhang, Hanxing

    Physical chemistry chemical physics : PCCP

    2023  Volume 25, Issue 46, Page(s) 31974–31982

    Abstract: The layered ternary ... ...

    Abstract The layered ternary CuSbSe
    Language English
    Publishing date 2023-11-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d3cp03896c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Study on the Method of Charge Accumulation Suppression of Electrostatic Suspended Accelerometer.

    Dai, Jiefeng / Wang, Wenrui / Wu, Bin / Ye, Lingyun / Song, Kaichen

    Sensors (Basel, Switzerland)

    2022  Volume 22, Issue 13

    Abstract: Electrostatic suspended accelerometers (ESAs) are widely used in high accuracy acceleration measurement. However, there exist accumulated charges on the isolated mass which damage the accuracy and the stability of ESAs. In this paper, we propose to apply ...

    Abstract Electrostatic suspended accelerometers (ESAs) are widely used in high accuracy acceleration measurement. However, there exist accumulated charges on the isolated mass which damage the accuracy and the stability of ESAs. In this paper, we propose to apply actuation voltage with a combined waveform to suppress the acceleration noise due to deposited charge. A model of the electrostatic force on the mass is established and the deviation voltage is found to be the dominant source of charge noise. Based on the analysis of disturbance electrostatic force under DC and AC signals, actuation combined with DC and AC voltage is designed and the disturbance force due to charge can be suppressed through adjustment towards the duty cycle of different compositions. Simulations and experiments are carried out and the results indicate that the disturbance due to charge can be suppressed up to 40%, which validates the efficiency of the scheme.
    Language English
    Publishing date 2022-06-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s22134930
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Influence of Exosomes on Astrocytes in the Pre-Metastatic Niche of Lung Cancer Brain Metastases.

    Ye, Lingyun / Wu, Yinfei / Zhou, Juan / Xie, Mengqing / Zhang, Zhemin / Su, Chunxia

    Biological procedures online

    2023  Volume 25, Issue 1, Page(s) 5

    Abstract: Background: Lung cancer is the most common cause of cancer-related death globally. There are several reasons for this high mortality rate, including metastasis to multiple organs, especially the brain. Exosomes play a pivotal role in tumor metastasis by ...

    Abstract Background: Lung cancer is the most common cause of cancer-related death globally. There are several reasons for this high mortality rate, including metastasis to multiple organs, especially the brain. Exosomes play a pivotal role in tumor metastasis by remodeling the microenvironment of remote target organs and promoting the pre-metastatic niche's formation. Since astrocytes are indispensable for maintaining the homeostasis of brain microenvironment, it's of great interest to explore the influence of lung cancer cell-derived exosomes on astrocytes to further understand the mechanism of lung cancer brain metastasis.
    Results: Twenty four h after co-culture of H1299 cell-derived exosomes and SVG P12 cells, the viability of astrocytes decreased and the apoptosis increased. The levels of cytokines in the supernatant including GROα/CXCL1, IFN-γ, IL-3, IL-5, IL-15, LIF, M-CSF, NGF, PDGF, and VEGF were significantly enhanced, while IL-7 secretion was significantly reduced. Meanwhile, apoptosis-related proteins MAP2K1, TUBA1C, RELA, and CASP6 were up-regulated. And the differentially expressed proteins were involved in regulating metabolic pathways.
    Conclusion: Exosomes of H1299 could induce apoptosis of astrocytes as well as promote their secretion of cytokines that were conducive to the formation of the inflammatory microenvironment and immunosuppressive microenvironment, and affect their metabolic pathways, thus facilitating the formation of pre-metastatic niche in lung cancer brain metastases.
    Language English
    Publishing date 2023-03-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 2027823-8
    ISSN 1480-9222
    ISSN 1480-9222
    DOI 10.1186/s12575-023-00192-4
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