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    Wyświetlanie 1-6 z 6
    Tytuł:
    Effects of organic supplementation to reduced rates of chemical fertilization on soil fertility of Zanthoxylum armatum
    Autorzy:
    Saba, T.
    Liu, W.
    Wang, J.
    Saleem, F.
    Kang, X.
    Hui, W.
    Gong, W.
    Li, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2130175.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    fertilization
    soil fertility
    nutrient availability
    organic manure
    culturable microbes
    Opis:
    Soil acidification, fertility depletion, food insecurity, and environmental pollution all are consequences of the extensive use of chemical fertilizers (CF) in intensively managed plantations. Recent studies have shown that incorporating organic manure (OM) to partially replace CF can help to maintain productivity and soil health. There are no reports on integrated fertilizer management of Zanthoxylum armatum, for optimal ecological services and economic profitability. A pot experiment with Z. armatum was performed to investigate the possibility of incorporating OM in reducing CF use, enhancing soil fertility, and increasing plant growth. For this, seven treatments were designed: NPK, PK, NP, NK, OM, MNPK (50%NPK+50%OM), and control (CK, no fertilizer application). The results showed that NPK application significantly (P < 0.05) increased plant growth, soil nitrate-N, ammonium-N and available K compared to CK. However conventional CF application induced soil acidification. OM application raised the soil pH from 5.50 (CK) to 6.58 and significantly enhanced soil fertility by increasing alkali-hydrolysable N (2.3 times), ammonium-N (1.4 times), available P (4.3 times), the activity of invertase (1.5 times), catalase (2.8 times), acid phosphatase (1.5 times), and count of soil culturable microbes (2.9 times) compared to CK. Conversely, sole OM application did not result in optimum plant growth. Integrating OM with NPK (MNPK), on the other hand, not only provided the highest growth comprehensive value (0.84), but also substantially higher soil fertility comprehensive value (0.71) than traditional CF treatments. Correlation analysis also indicated a positive and significant correlation between soil microbes, enzyme activities and available nutrients. Therefore, OM+NPK could be an optimum measure to get maximum benefits regarding soil fertility, growth of Z. armatum, fertilizer savings and sustainable agroecology.
    Źródło:
    Dendrobiology; 2022, 87; 123-136
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New Development of Ships Routeing in Chinese Navigable Waterways
    Autorzy:
    Hui, M.
    Zhaolin, W.
    Zhengjiang, Liu
    Powiązania:
    https://bibliotekanauki.pl/articles/116736.pdf
    Data publikacji:
    2008
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Ships Routeing
    Chinese Navigable Waterways
    Marine Traffic Engineering (MTE)
    vessel traffic service (VTS)
    Traffic Separation Scheme (TSS)
    Marine Traffic
    Marine Traffic Safety
    Safety of Navigation
    Opis:
    After entering 21 century Chinese waterborne transportation keep high speed development, mmarine traffic order and marine traffic safety become more important issues. In order to enhance marine traffic safety and efficiency, ships routeing systems were implemented in important navigable waters in recent years. After implementation of these ships routeing systems, evaluations on the effects are carried and prove that these ships routeing systems have got obvious effects both on safety and economic efficiency.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 2; 127-130
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of panchromatic IKONOS data for mapping
    Ocena przydatności panchromatycznych obrazów IKONOS dla opracowania map
    Autorzy:
    Kaczyński, R.
    Ewiak, I.
    Chun, R. W.
    Hui, Y. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/129670.pdf
    Data publikacji:
    2001
    Wydawca:
    Stowarzyszenie Geodetów Polskich
    Tematy:
    Ikonos
    orthorectification
    panchromatic data
    planimetric accuracy
    ortorektyfikacja
    dane panchromatyczne
    dokładność planimetryczna
    Opis:
    The results of assessment of the planimetric accuracy of 1-meter resolution panchromatic IKONOS data comparing to the topographic map in the scale 1:10,000 are presented. Low precision georeferenced Car terra Geo, 50 m CE90 product of test areas in China was orthorectified in IGiK using Image Station INTERGRAPH and InternationaI Imaging System PRISM VISTA software as well as software elaborated in Chinese Academy of Surveying and Mapping (CASM). Planimetric accuracy of IKONOS data after adjustment with the use of 5 GCP's (taken from the topomap) was: RMSEx = +/- 1.1m and RMSEy = +/- 1.4m. Planimetric accuracy calculated on 18 check points, the X, Y coordinates of which have been also taken from the topomap was: RMSEx = +/-3.5m and RMSEy= +/- 2.5 m. Planimetric accuracy of the orthophotomap generated using IKONOS data and calculated transformation parameters was: RMSEx = +/- 3.7 m and RMSEy = +/- 3.6 m. This accuracy is similar to the planimetric accuracy of the topographic map in the scale 1:10 000. Better accuracy can be achieved by measuring GCP's directly in the field with GPS technique instead of using topomaps. Nevertheless, Сarterra Geo product which is of the lowest horizontal precision out of the entire range of IKONOS products and also the cheapest, can be used for updating topomaps as well as for generating up-to-date digital basemap in modern Geographic Information Systems.
    Źródło:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2001, 11; 3-1-3-6
    2083-2214
    2391-9477
    Pojawia się w:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Defect solitons supported by kagome photonic lattices in biased photovoltaic-photorefractive crystals
    Autorzy:
    Hui, J.
    Lu, K.
    Zhao, C.
    Gao, L.
    Chen, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/173797.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    defect solitons
    photonic lattices
    photorefractive nonlinearity
    nonlinear optics
    Opis:
    We report that defect solitons can be supported by kagome photonic lattices with a defect in biased photovoltaic-photorefractive crystals. For a positive defect, these defect solitons exist only in the semi-infinite bandgap and are stable in the low power region but unstable in the high power region. For a negative defect, these defect solitons exist in both of the semi-infinite bandgaps and the first bandgap. In the semi-infinite bandgap, low-power defect solitons are stable when the negative defect depth is low and unstable when the negative defect depth is high, moderate-power defect solitons are stable when the negative defect depth is high, and high-power defect solitons are unstable for all the negative defect depths. In the first bandgap, defect solitons are stable in all the power regions when the negative defect depth is low. When the negative defect depth is high, defect solitons are stable in the high power region and unstable in the low power region. On the other hand, these defect solitons are those studied previously in kagome photonic lattices with a defect in biased non-photovoltaic-photorefractive crystals when the bulk photovoltaic effect is negligible and those in kagome photonic lattices with a defect in photovoltaic-photorefractive crystals when the external bias field is absent.
    Źródło:
    Optica Applicata; 2018, 48, 3; 349-359
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dispersive effect of low molecular weight sodium polyacrylate on pyrite-serpentine flotation system
    Autorzy:
    Zhao, K.
    Yan, W.
    Wang, X.
    Gu, G.
    Deng, J.
    Zhou, X.
    Hui, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/110158.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    dispersant
    serpentine
    flotation
    surface potential
    dispersion mechanism
    Opis:
    In this work, the dispersive effect of low molecular weight sodium polyacrylate (PAAS) on serpentine, and its dispersion mechanism were systematically investigated through zeta potential measurements, micro and batch flotation as well as adsorption tests. At pH 5, where flotation of iron sulphide was routinely performed, pyrite and serpentine minerals were oppositely charged, and therefore they were attracted to each other. Slime coatings of serpentine adhered to the surface of pyrite, decreasing the adsorption density of a collector on the pyrite surface, but also reducing the flotation recovery. PAAS increased the flotation recovery of pyrite by promoting dispersion between pyrite and serpentine. The effective flotation separation of pyrite from the refractory iron sulphide ore was possible by using PAAS as a dispersant. Anionic PAAS adjusted the surface potential of serpentine through adsorption on the serpentine surface and changed the interaction between pyrite and serpentine particles from attractive to repulsive, and then dispersed pyrite and serpentine.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2017, 53, 2; 1200-1213
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polymorphisms in the p53 pathway genes and micronucleus occurrence in Chinese vinyl chloride-exposed workers
    Autorzy:
    Li, Yong
    Feng, Nan-Nan
    Zhang, Guang-Hui
    Wang, Qi
    Hao, Yan-Hui
    Nanzhang, Ya
    Long, Changxu
    Li, Yongliang
    Brandt-Rauf, Paul W.
    Xia, Zhao-Lin
    Powiązania:
    https://bibliotekanauki.pl/articles/2179059.pdf
    Data publikacji:
    2013-12-01
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    VC
    occupational exposure
    p53 pathway genes
    genetic polymorphism
    Opis:
    Objectives: To investigate the association between polymorphisms in the p53 pathway genes and chromosomal damage in vinyl chloride (VC)-exposed workers. Materials and Methods: Cytokinesis block micronucleus test was performed in 310 VC-exposed workers and 149 non-exposed workers to determine chromosomal damage. The polymerase chain reaction and restriction fragment length polymorphism technique were used to detect six SNPs in the p53 pathway genes involved in the cell cycle. Results: There was a highly significant dose-response relationship between VC exposure and chromosomal damage. Individuals carrying the variant genotypes were at higher risk for chromosomal damage compared with their wild type genotype: p53rs1042522, MDM2 Del1518rs3730485, MDM2rs2279744 and GADD45Ars532446. On the other hand, individuals possessing the variant genotype of CDKN2A rs3088440 had significantly decreased risk compared with the corresponding wild-type. Conclusions: Genetic polymorphisms in P53 pathway genes may have an impact on VC-induced chromosomal damage.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2013, 26, 6; 825-836
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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