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  1. Article ; Online: Study on the characteristics of mold in military aviation material warehouse

    Li Li / Hongqiang Zhao / Yumin Shi / Jiongkun Wang / Xingxiang Guo / Kun Li

    E3S Web of Conferences, Vol 271, p

    2021  Volume 04035

    Abstract: Aviation equipment warehouse is responsible for the combat training task of the army. The existence of mold in the warehouse reduces the quality and performance of equipment, and the quality of storage equipment directly affects the strength of aviation ... ...

    Abstract Aviation equipment warehouse is responsible for the combat training task of the army. The existence of mold in the warehouse reduces the quality and performance of equipment, and the quality of storage equipment directly affects the strength of aviation equipment support ability. In this paper, the main characteristics of storage mold were studied, the micro morphology and colony characteristics of storage mold were analyzed, and the main types of mold in aviation material warehouse were introduced, which provided a theoretical basis for further research on the growth and control of mold.
    Keywords Environmental sciences ; GE1-350
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article: Application of hydrogen for rare-earth gadolinium purification and thermodynamic simulation of system

    Wang, Jiongkun / Li, Guoling / Fu, Kai / Li, Xingguo

    Journal of materials science. 2019 Oct., v. 54, no. 20

    2019  

    Abstract: Due to the extremely high chemical reactivity of gadolinium (Gd), especially the removal difficulty of trace impurities, preparation of ultra-high purity Gd is challenging. Herein, we introduce H2 into Ar plasma arc, building a reductive gas flow with ... ...

    Abstract Due to the extremely high chemical reactivity of gadolinium (Gd), especially the removal difficulty of trace impurities, preparation of ultra-high purity Gd is challenging. Herein, we introduce H2 into Ar plasma arc, building a reductive gas flow with high-density thermal energy. H2 + Ar plasma arc melting performs a wonderful refining effect despite of high initial concentrations. Migration ways and removal mechanism of various impurities have been systematically analyzed. Electromagnetic driving force and turbulence thermal flow of the hydrogen plasma arc are numerically simulated. Results show that activated hydrogen ions, dissociated in plasma arc and bringing special physical and chemical interactions, are supposed to be the cause for the excellent refining effect.
    Keywords chemical interactions ; chemical reactions ; gadolinium ; hydrogen ; hydrogen ions ; melting ; thermal energy ; thermodynamics ; turbulent flow
    Language English
    Dates of publication 2019-10
    Size p. 13334-13343.
    Publishing place Springer US
    Document type Article
    ZDB-ID 2015305-3
    ISSN 1573-4803 ; 0022-2461
    ISSN (online) 1573-4803
    ISSN 0022-2461
    DOI 10.1007/s10853-019-03608-3
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Human TSLP-educated DCs.

    Wang, Jiongkun / Xing, Feiyue

    Cellular & molecular immunology

    2008  Volume 5, Issue 2, Page(s) 99–106

    Abstract: Thymic stromal lymphopoietin (TSLP), an IL-7-related cytokine, is widely expressed by epithelial cells in many tissues with different biological effects. Human TSLP (hTSLP) has been shown to play an important role in promoting T cell homeostasis, ... ...

    Abstract Thymic stromal lymphopoietin (TSLP), an IL-7-related cytokine, is widely expressed by epithelial cells in many tissues with different biological effects. Human TSLP (hTSLP) has been shown to play an important role in promoting T cell homeostasis, developing nondeletional central tolerance, amplifying epithelium-induced class switching, inducing atopic diseases and maintaining intestinal noninflammatory environment. Among diverse cells responding to hTSLP, dendritic cells (DCs) are the most obviously characterized target cells. In this review, we attempt to outline an effect of the functional versatility of hTSLP-activated DCs (hTSLP-DCs) on T cells.
    MeSH term(s) Cytokines/immunology ; Dendritic Cells/immunology ; Humans ; Hypersensitivity, Immediate/immunology ; Mast Cells/immunology ; Signal Transduction ; T-Lymphocytes/immunology
    Chemical Substances Cytokines ; thymic stromal lymphopoietin (GT0IL38SP4)
    Language English
    Publishing date 2008-04-30
    Publishing country China
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2435097-7
    ISSN 1672-7681
    ISSN 1672-7681
    DOI 10.1038/cmi.2008.12
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  4. Article: A novel cell subset: interferon-producing killer dendritic cells.

    Wang, Jiongkun / Xing, Feiyue

    Science in China. Series C, Life sciences

    2008  Volume 51, Issue 8, Page(s) 671–675

    Abstract: Recent reports introduce a novel cell subset of DCs with antigenic phenotypes shared by both NK cells and B cells, but without surface markers of pDCs and T cells, appearing to be a chimera of NK cells and DCs, namely interferon-producing killer ... ...

    Abstract Recent reports introduce a novel cell subset of DCs with antigenic phenotypes shared by both NK cells and B cells, but without surface markers of pDCs and T cells, appearing to be a chimera of NK cells and DCs, namely interferon-producing killer dendritic cells (IKDCs). IKDCs not only secret type I and type II interferons to recognize and kill tumor cells effectively, but also express MHC-II molecules to present antigens. Thus, IKDCs are considered as important immunosurveilance cells for tumors, providing a link between innate and adaptive immunity.
    MeSH term(s) Animals ; Cell Shape ; Dendritic Cells/cytology ; Dendritic Cells/immunology ; Genes, MHC Class II ; Humans ; Interferons/immunology ; Killer Cells, Natural/cytology ; Killer Cells, Natural/immunology ; Mice ; Mice, Knockout ; Phenotype
    Chemical Substances Interferons (9008-11-1)
    Language English
    Publishing date 2008-08
    Publishing country China
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1322470-0
    ISSN 1862-2798 ; 1006-9305
    ISSN (online) 1862-2798
    ISSN 1006-9305
    DOI 10.1007/s11427-008-0084-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Nano-characterization of Jagged-1-educated dendritic cells

    Xing Feiyue / Wang Jiongkun / Fang Zhiyuan / Hu Mingqian / Yu Yu / Chen Guoliang / Liu Jing

    Open Life Sciences, Vol 6, Iss 6, Pp 981-

    2011  Volume 989

    Keywords jagged-1 ; lipopolysaccharide ; nanostructure ; dendritic cell ; Biology (General) ; QH301-705.5
    Language English
    Publishing date 2011-12-01T00:00:00Z
    Publisher De Gruyter
    Document type Article ; Online
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  6. Article ; Online: Comparison of immature and mature bone marrow-derived dendritic cells by atomic force microscopy

    Liu Jing / Hu Mingqian / Yu Yu / Xing Feiyue / Wang Jiongkun / Chen Guoliang

    Nanoscale Research Letters, Vol 6, Iss 1, p

    2011  Volume 455

    Abstract: Abstract A comparative study of immature and mature bone marrow-derived dendritic cells (BMDCs) was first performed through an atomic force microscope (AFM) to clarify differences of their nanostructure and adhesion force. AFM images revealed that the ... ...

    Abstract Abstract A comparative study of immature and mature bone marrow-derived dendritic cells (BMDCs) was first performed through an atomic force microscope (AFM) to clarify differences of their nanostructure and adhesion force. AFM images revealed that the immature BMDCs treated by granulocyte macrophage-colony stimulating factor plus IL-4 mainly appeared round with smooth surface, whereas the mature BMDCs induced by lipopolysaccharide displayed an irregular shape with numerous pseudopodia or lamellapodia and ruffles on the cell membrane besides becoming larger, flatter, and longer. AFM quantitative analysis further showed that the surface roughness of the mature BMDCs greatly increased and that the adhesion force of them was fourfold more than that of the immature BMDCs. The nano-features of the mature BMDCs were supported by a high level of IL-12 produced from the mature BMDCs and high expression of MHC-II on the surface of them. These findings provide a new insight into the nanostructure of the immature and mature BMDCs.
    Keywords dendritic cell ; nanostructure ; adhesion force ; comparison ; Chemistry ; QD1-999 ; Science ; Q ; DOAJ:Chemistry (General) ; DOAJ:Chemistry
    Language English
    Publishing date 2011-01-01T00:00:00Z
    Publisher Springer
    Document type Article ; Online
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  7. Article ; Online: Nanostructure and nanomechanics analysis of lymphocyte using AFM: from resting, activated to apoptosis.

    Hu, Mingqian / Wang, Jiongkun / Zhao, Hongxia / Dong, Shisong / Cai, Jiye

    Journal of biomechanics

    2009  Volume 42, Issue 10, Page(s) 1513–1519

    Abstract: The ultrastructural and mechanical properties of single resting, activated and apoptosis lymphocyte have been investigated by atomic force microscopy (AFM). Using topographic imaging, we showed that the surface of the resting lymphocyte is smooth, while ... ...

    Abstract The ultrastructural and mechanical properties of single resting, activated and apoptosis lymphocyte have been investigated by atomic force microscopy (AFM). Using topographic imaging, we showed that the surface of the resting lymphocyte is smooth, while lymphocyte activation and apoptosis are often accompanied by changes in cell morphology. The apoptosis lymphocyte is rougher than those of the two other morphotypes, and coated with many big particles. Using spatially resolved force-distance curves, we found that the valve of the activated lymphocyte is about two to three times stiffer (Young's modulus of approximately 20 kPa) than those of the two other morphotypes (5-11 kPa). These results can improve our understanding of the mechanical properties of cells during growth and differentiation.
    MeSH term(s) Animals ; Apoptosis ; Biomechanical Phenomena ; Cell Membrane/physiology ; Elasticity ; Flow Cytometry ; In Vitro Techniques ; Lymphocyte Activation ; Lymphocytes/cytology ; Lymphocytes/immunology ; Lymphocytes/physiology ; Mice ; Mice, Inbred BALB C ; Microscopy, Atomic Force/methods ; Nanostructures ; Nanotechnology ; Resting Phase, Cell Cycle
    Language English
    Publishing date 2009-05-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 218076-5
    ISSN 1873-2380 ; 0021-9290
    ISSN (online) 1873-2380
    ISSN 0021-9290
    DOI 10.1016/j.jbiomech.2009.03.051
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Comparison of immature and mature bone marrow-derived dendritic cells by atomic force microscopy.

    Xing, Feiyue / Wang, Jiongkun / Hu, Mingqian / Yu, Yu / Chen, Guoliang / Liu, Jing

    Nanoscale research letters

    2011  Volume 6, Issue 1, Page(s) 455

    Abstract: A comparative study of immature and mature bone marrow-derived dendritic cells (BMDCs) was first performed through an atomic force microscope (AFM) to clarify differences of their nanostructure and adhesion force. AFM images revealed that the immature ... ...

    Abstract A comparative study of immature and mature bone marrow-derived dendritic cells (BMDCs) was first performed through an atomic force microscope (AFM) to clarify differences of their nanostructure and adhesion force. AFM images revealed that the immature BMDCs treated by granulocyte macrophage-colony stimulating factor plus IL-4 mainly appeared round with smooth surface, whereas the mature BMDCs induced by lipopolysaccharide displayed an irregular shape with numerous pseudopodia or lamellapodia and ruffles on the cell membrane besides becoming larger, flatter, and longer. AFM quantitative analysis further showed that the surface roughness of the mature BMDCs greatly increased and that the adhesion force of them was fourfold more than that of the immature BMDCs. The nano-features of the mature BMDCs were supported by a high level of IL-12 produced from the mature BMDCs and high expression of MHC-II on the surface of them. These findings provide a new insight into the nanostructure of the immature and mature BMDCs.
    Language English
    Publishing date 2011-07-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2253244-4
    ISSN 1556-276X ; 1931-7573
    ISSN (online) 1556-276X
    ISSN 1931-7573
    DOI 10.1186/1556-276X-6-455
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  9. Article: [Analysis of sodium benzoate biotoxicity by atomic force microscope].

    Hu, Mingqian / Wang, Jiongkun / Cai, Jiye / Wu, Yangzhe / Wang, Xiaoping

    Sheng wu gong cheng xue bao = Chinese journal of biotechnology

    2008  Volume 24, Issue 8, Page(s) 1428–1432

    Abstract: Atomic force microscope (AFM) was used to study biotoxicity of food preservative sodium benzoate (SB) at the single cellular level. Lymphocyte morphology and membrane ultrastructure treated with SB at different concentrations and time were analyzed ... ...

    Abstract Atomic force microscope (AFM) was used to study biotoxicity of food preservative sodium benzoate (SB) at the single cellular level. Lymphocyte morphology and membrane ultrastructure treated with SB at different concentrations and time were analyzed visually. As compared to the normal lymphocyte, the cell morphology and membrane was significantly changed and its ultrastructure was also complicated. After treated with SB, the Rp-v, Rq, Ra and Z values were changed. The statistical analysis of lymphocytes after treated with SB was studied, and discussed its mechanism.
    MeSH term(s) Animals ; Cell Membrane/ultrastructure ; Lymphocytes/drug effects ; Lymphocytes/pathology ; Mice ; Mice, Inbred BALB C ; Microscopy, Atomic Force ; Sodium Benzoate/toxicity
    Chemical Substances Sodium Benzoate (OJ245FE5EU)
    Language Chinese
    Publishing date 2008-08-11
    Publishing country China
    Document type English Abstract ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1042206-7
    ISSN 1000-3061 ; 1042-749X
    ISSN 1000-3061 ; 1042-749X
    DOI 10.1016/s1872-2075(08)60064-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Nanostructure and force spectroscopy analysis of human peripheral blood CD4+ T cells using atomic force microscopy.

    Hu, Mingqian / Wang, Jiongkun / Cai, Jiye / Wu, Yangzhe / Wang, Xiaoping

    Biochemical and biophysical research communications

    2008  Volume 374, Issue 1, Page(s) 90–94

    Abstract: To date, nanoscale imaging of the morphological changes and adhesion force of CD4(+) T cells during in vitro activation remains largely unreported. In this study, we used atomic force microscopy (AFM) to study the morphological changes and specific ... ...

    Abstract To date, nanoscale imaging of the morphological changes and adhesion force of CD4(+) T cells during in vitro activation remains largely unreported. In this study, we used atomic force microscopy (AFM) to study the morphological changes and specific binding forces in resting and activated human peripheral blood CD4(+) T cells. The AFM images revealed that the volume of activated CD4(+) T cells increased and the ultrastructure of these cells also became complex. Using a functionalized AFM tip, the strength of the specific binding force of the CD4 antigen-antibody interaction was found to be approximately three times that of the unspecific force. The adhesion forces were not randomly distributed over the surface of a single activated CD4(+) T cell, indicated that the CD4 molecules concentrated into nanodomains. The magnitude of the adhesion force of the CD4 antigen-antibody interaction did not change markedly with the activation time. Multiple bonds involved in the CD4 antigen-antibody interaction were measured at different activation times. These results suggest that the adhesion force involved in the CD4 antigen-antibody interaction is highly selective and of high affinity.
    MeSH term(s) Antibodies/immunology ; Antibody Affinity ; Antigen-Antibody Reactions ; CD4 Antigens/immunology ; CD4-Positive T-Lymphocytes/drug effects ; CD4-Positive T-Lymphocytes/immunology ; CD4-Positive T-Lymphocytes/ultrastructure ; Humans ; Lymphocyte Activation ; Microscopy, Atomic Force ; Nanostructures ; Phytohemagglutinins/immunology ; Phytohemagglutinins/pharmacology ; Spectrum Analysis/methods
    Chemical Substances Antibodies ; CD4 Antigens ; Phytohemagglutinins
    Language English
    Publishing date 2008-09-12
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 205723-2
    ISSN 1090-2104 ; 0006-291X ; 0006-291X
    ISSN (online) 1090-2104 ; 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2008.06.107
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