Mostrando 3,061 - 3,080 Resultados de 39,750 Para Buscar '"vegetal"', tiempo de consulta: 0.33s Limitar resultados
  1. 3061
    “…Pixel segmentation of high-resolution RGB images into chlorophyll-active or nonactive vegetation classes is a first step often required before estimating key traits of interest. …”
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  2. 3062
    por Zhang, Ji, Liu, Zelin, Shi, Yu, Zou, Ziying
    Publicado 2022
    “…The contradiction between urban expansion and ecological protection in fragile vegetation areas has become increasingly prominent with regional development. …”
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  3. 3063
  4. 3064
  5. 3065
  6. 3066
    por Eigentler, L., Sherratt, J. A.
    Publicado 2022
    “…Spatiotemporal patterns of vegetation are a ubiquitous feature of semi-arid ecosystems. …”
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  7. 3067
    “…The MaxEnt model, combined with the distribution point data of natural vegetation with long-term stable normalized difference vegetation index (NDVI) and 24 environmental factors was used to predict the PNDVI spatial distribution of different vegetation coverage grades and compared it with ANDVI. …”
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  8. 3068
    “…We used Landsat imagery to explore NDVI as a proxy of vegetation productivity over the years 1984–2021, orthophotos to assess changes in land and vegetation covers and historical plant inventories to study the dynamics in plant diversity. …”
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  9. 3069
    “…Our analysis reveals a significant improvement in air quality marked by reduced levels of aerosols (AOD, −19.27%) and Particulate Matter (PM 2.5, −23%) during LD (2020)from pre-LD (March–September months for the period 2017–2019). The vegetation exhibits a positive response, reflected by the increase in surface greenness [Enhanced Vegetation Index (EVI, +10.4%)] and photosynthetic activity [Solar Induced Fluorescence (SiF, +11%)], during LD from pre-LD that coincides with two major agricultural seasons of India; Zaid (March–May) and Kharif (June–September). …”
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  10. 3070
    “…Intraoperatively, the presence of vegetation was confirmed. Because severe mitral annulus calcification may act as a nidus for infective endocarditis, special attention must be paid to these patients. …”
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  11. 3071
  12. 3072
    “…In comparison to bacterial endocarditis, fungal endocarditis is more commonly associated with arterial embolization, likely due to the larger size of vegetations. Unfortunately, diagnosis is often delayed, contributing to significant morbidity and mortality. …”
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  13. 3073
    “…This paper takes the specific environment covered by vegetation as the research object, carries out modeling and analysis, takes the large-scale fading model of wireless channel as the basis of data processing, researches the transmission law of electromagnetic wave in a typical vegetation environment, which can be divided into four situations. …”
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  14. 3074
    “…Using climate and NDVI data, this paper analyzed the spatiotemporal variations in the start (SOS), end (EOS), and length (LOS) of vegetation growing season and explored the impacts of climatic variation on vegetation phenology in marshes of Sanjiang Plain. …”
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  15. 3075
    “…However, the effect of added nitrogen on vegetative and reproductive biomass has not yet been studied in a uniform minimalistic laboratory setup. …”
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  16. 3076
  17. 3077
    “…The aim of the present study was to develop the ASKFV-SE tool to measure self-efficacy (SE) towards requesting fruits and vegetables (FV) in the home and school environment with school-age children (grades 4–5) from urban, ethnically diverse, low-income households. …”
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  18. 3078
  19. 3079
    “…Therefore, this study aimed to determine pesticide residues and the effect of processing in commonly consumed vegetables in the southwestern part of Ethiopia. In total, 12 samples of 1 kg of each type of vegetable were collected from selected markets. …”
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  20. 3080
    “…The purpose of this study was to determine and compare the diversity and distribution of vegetation in the Biała Przemsza valley in sections of channel straightening with the old riverbed and areas undisturbed by engineering works against the background of land use in temporal and spatial aspects. …”
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