Showing 201 - 220 results of 229 for search 'Digimon~', query time: 2.13s Refine Results
  1. 201

    Analysis of MIMO antenna array based on electromagnetic vector sensor by Jie ZHOU, Lin QIU, Kikuchi HISAKAZU

    Published 2013-05-01
    “…EVS(electromagnetic vetor sensor) signal processing method was combined with traditional MIMO signal processing method and three-dimensional channel model of multi-antenna array was set up.The algorithm of multiple signal classification (MUSIC) was adopted to make spatial spectrum estimation for direction of arrival (DOA) signal,analytical expressions of three-dimensional spatial channel was derived base on EVS for MIMO receiver system and the relationship between EVS signal processing and MIMO multipath channel correlation was clarified.To compare with tra-ditional MIMO antenna array,EVS array possesses abilities of obtaining multidimensional polarization information,processing spatial and polarization domain for arrival signal and degrading effects of spatial factors on MIMO channel capacity.Theoretical analysis and simulation results indicate that EVS array provide more advantages than traditional scalar sensor array on enhancing MIMO system performance.…”
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  2. 202

    Global Empirical Model of Sporadic-E Occurrence Rates by Eli V. Parsch, Anthony L. Franz, Eugene V. Dao, Dong L. Wu, Nimalan Swarnalingam, Nimalan Swarnalingam, Cornelius C. J. H. Salinas, Daniel J. Emmons

    Published 2024-11-01
    “…The model outputs are compared to digisonde observations at four sites with varying geomagnetic latitudes, resulting in correlation coefficients ranging from 0.5 to 0.9 for monthly averaged observations and an uncertainty of 11%. …”
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  3. 203
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  5. 205

    Irregularities Observed at the Edge of a Mid‐Latitude Ionospheric Depletion Following a Geomagnetic Storm by J. F. Helmboldt

    Published 2023-06-01
    “…The impact of these was observed within Global Positioning System data as elevated rate of TEC index (ROTI) and presented as strong 35 MHz scintillations of cosmic radio sources as well as spread‐F within ionograms from multiple digisonde systems. GPS and 35‐MHz data demonstrated that the irregularity region was narrowly confined (≲5° wide) near the edge of the depletion region. …”
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  6. 206

    Assessing the Effects of a Minor CIR‐HSS Geomagnetic Storm on the Brazilian Low‐Latitude Ionosphere: Ground and Space‐Based Observations by F. S. Chingarandi, C. M. N. Candido, F. Becker‐Guedes, O. F. Jonah, S. P. Moraes‐Santos, V. Klausner, O. O. Taiwo

    Published 2023-09-01
    “…We used simultaneous observations from multiple instruments, namely; ground‐based Global Navigation Satellite Systems (GNSS) receivers, a Digisonde, ground magnetometers, and space‐based observations from the National Aeronautics and Space Administration Global‐scale Observations of Limb and Disk (GOLD) and SWARM missions. …”
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  7. 207

    Comparison of radical scavenging properties of gosypol and its derivatives in the reaction with DPPH by Oleksii Dykun, Viktor Anishchenko, Andrii Redko, Volodymyr Rybachenko

    Published 2024-06-01
    “…It was shown that the most effective radical scavenging agent is the gossypol hydrazone in the diimine tautomeric form (6 phenolic hydroxyl groups). …”
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  8. 208

    Validating Ionospheric Models Against Technologically Relevant Metrics by A. T. Chartier, J. Steele, G. Sugar, D. R. Themens, S. K. Vines, J. D. Huba

    Published 2023-12-01
    “…Autoscaled and then machine learning “cleaned” Digisonde NmF2 data indicate a 1.0 × 1011 el. m3 median positive bias in SAMI3 (equivalent to a 27% overestimation). …”
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  9. 209

    Detection and Classification of Sporadic E Using Convolutional Neural Networks by J. A. Ellis, D. J. Emmons, M. B. Cohen

    Published 2024-01-01
    “…Intensity (foEs) and the height (hEs) values are obtained from the global network of ground‐based Digisonde ionosondes and are used as the “ground truth,” or target variables, during training. …”
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  10. 210
  11. 211

    Multi‐Source Perturbations in the Evolution of a Low‐Latitudinal Equatorial Plasma Bubble Event Occurred Over China by Longchang Sun, Jiyao Xu, Yajun Zhu, Wei Yuan, Hong Gao, Chunxiao Yan

    Published 2023-03-01
    “…Abstract In this paper, multi‐source perturbations during the evolution of an equatorial plasma bubble (EPB) event at low latitudes in China are studied by means of multi‐ground‐based instruments, including an all‐sky airglow imager, a very high frequency (VHF) radar and eight digisondes. We found that EPB event initially evolved from bottom perturbations (∼600 km scale) seeded by atmospheric gravity waves in a form of large‐scale wave‐like structure, accompanying smaller‐scale perturbations (∼150 km scale) mostly by collision‐shear instability (CSI); once formed, those seed perturbations further evolved into the ionospheric topside by the plasma instability. …”
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  12. 212

    Comparison of Canal Transportation by Two Rotary Systems, Neoniti vs. Wave One, Both Used with Reciprocal Motion by Mohsen Aminsobhani, Arvin Rezaei Avval, Fatemeh Hamidzadeh

    Published 2024-12-01
    “…These images were then superimposed using Adobe Photoshop to assess differences, and measurements were taken with Digimizer image analysis software. The data was analyzed using an independent samples T-test, with statistical significance set at P<0.05. …”
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  13. 213
  14. 214

    Fur Processing in Raižiai in the 20th Century: Craft and Image by Jonas Mardosa

    Published 2023-10-01
    “…The professionalism of the craftsmen, the use of tra­ ditional methods of fur processing, supported the profound appreciation of the level of mastery of the Tatars in the society. …”
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  15. 215

    MATHEMATICAL MODELS FOR ESTIMATING LEAF AREA OF APRICOT AND JUJUBE PLANTS BASED ON LEAF LENGTH AND WIDTH by M. E. A. Al-Hadethi, F. S. H. Al-Marsoumi

    Published 2024-12-01
    “…Leaf length and width were measured and leaf area (LA) calculated based on three methods: a square method drawing on graph paper; using a CI-202 area-meter device; and scanning and reading using a Digimizer program. The average leaf area from the three methods was calculated and linear regression analysis was used based on leaf length &times; width as independent variables. …”
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  16. 216

    Horasan Türkçesiyle Yazılmış Bir Eser: Çox İreye Ġısme Yār by Talip Doğan

    Published 2019-02-01
    “…Ses bilgisinden söz dizimine uzanan çeşitli kategorilerde bu dönüşümler izlenebilmektedir. …”
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  17. 217

    The Decreased Treg Cells Number Associated with Retinal Lesion Size in Ocular Toxoplasmosis by Ovi Sofia, Muna Amalia, Herryanto Thomassawa, Loeki Enggar Fitri, Seskoati Prayitnaningsih, Hani Susianti

    Published 2024-01-01
    “…Retinal lesions were documented by fundus photographs and the size was measured using Digimizer 4.2.2.0 software. Isolation of peripheral blood mononuclear cells (PBMC) was performed to measure the number of Treg cells using flow cytometry and interleukin-27 levels were assessed using the Sandwich enzyme-linked immunosorbent assay (ELISA) technique. …”
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  18. 218

    Evaluation of the Canal Transportation Following Glide Path Preparation with Different Rotary Systems: A Comparative Study by Mohsen Aminsobhani, Fatemeh Hamidzadeh, Arvin Rezaei Avval, Farid Merrikhi, Ehsan Sadri

    Published 2022-01-01
    “…Transportation measurements were conducted in Digimizer. Absolute canal transportation was calculated at 10 cross-sections. …”
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  19. 219

    The Efficacy of Erbium, Chromium: Yttrium, Scandium, Gallium, Garnet laser in the removal of calcium hydroxide as intra canal medicament. by Ranu Hogir Sarhang, Nawfal Abdulmelek Zakareya

    Published 2022-02-01
    “…After removel of calcium hydroxide the roots were split in to two halves and viewed under stereo microscope then surface area of remained Ca(OH)2 was evaluated by Digimizer software. The data were analyzed statistically using one‐way ANOVA, least significant differences (LSD) and post hoc test 95% confidence level (P = 0.05). …”
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  20. 220