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  1. 361

    The Earth-Mars Transfer Trajectory Optimization of Solar Sail Based on hp-Adaptive Pseudospectral Method by Yufei Guo, Dongzhu Feng, Xin Wang, Cong Li, Yunzhao Liu

    Published 2018-01-01
    “…In this paper, the pressure of solar light acting on the solar sail is analyzed, and the kinematic equation of the solar sail is established in polar coordinate system first; then the basic principle of the hp-adaptive pseudospectral method is introduced, and the steps of solving the transfer trajectory optimization problem by hp-adaptive pseudospectral method are proposed; finally, the trajectory optimization of the solar sail from Earth orbit to Sun-centered Mars orbit is simulated as an example to demonstrate the effectiveness of hp-adaptive pseudospectral method in the orbit transfer optimization problem of solar sail. …”
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  2. 362

    Pathogenic potential of ornithogenic <i>Escherichia coli</i> strains detected in the Earth's polar regions by Batyrbek I. Aslanov, Daniil V. Azarov, Maria A. Makarova, Elizaveta G. Marysheva, Lyudmila A. Kraeva, Aleksey S. Mokhov, Ekaterina A. Lebedeva, Nikita E. Goncharov, Natalya V. Lebedeva, Dmitry A. Starikov, Victoria V. Kolodzhieva, Dmitry E. Polev, Artemy E. Goncharov

    Published 2024-12-01
    “…The aim of this study was to assess the pathogenic potential of E. coli strains from the polar regions of the Earth, based on the analysis of the genomes of these bacteria from typical ornithogenic ecosystems of the Arctic and Antarctic. …”
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  3. 363
  4. 364

    Effects of Aging Treatment on Laser-Welded Mg-Rare Earth Alloy NZ30K by Jun Dai, Li Yang, Lili Li, Guolin Guo, Lanzhong Guo

    Published 2013-01-01
    “…Magnesium-rare earth alloys have received extensive attention due to their attractive mechanical properties resulting from high density of precipitation. …”
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  5. 365
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    Pengaruh Pemberian Aspartam terhadap Kadar Glukosa Darah Tikus Diabetes Melitus Diinduksi Aloksan by Ega Purnamasari R.D, Eti Yerizel, Efrida .

    Published 2014-09-01
    “…Analisis data dengan Uji ANOVA nilai p= 0,000 (p&lt;0,05), terdapat perbedaan kadar glukosa darah puasa yang bermakna pada semua kelompok. Keimpulan penelitian ini adalah terdapat pengaruh pemberian aspartam terhadap penurunan kadar glukosa darah puasa tikus diabetes melitus diinduksi aloksan.…”
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  7. 367
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  9. 369

    Kinetics of Transesterification of Croton megalocarpus Oil Using Alkaline Earth Catalysts with Conventional and Microwave Heating by Anil Kumar, Henry K. Kiriamiti

    Published 2020-01-01
    “…Transesterification kinetics of Croton megalocarpus oil to produce fatty acid methyl esters (FAME) was studied using homogeneous NaOH and heterogeneous alkaline earth Nano MgO, MgO, Nano CaO, CaO, Reoxidized CaO, SrO, and BaO catalysts. …”
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  10. 370

    De l’aurore à la nuit : le parcours du roi-soleil maya by Claude-François Baudez

    Published 2006-06-01
    “…The solar metaphor was used to legitimate the absolute power of the Maya kingship as well as to justify the necessity of dynastic continuity, while demonstrating the special relationship that existed between the king, the earth and his land.…”
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  11. 371
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  14. 374

    From the ‘‘Former Rubber Capital of the World’’ to Space of Hope? Refugees and Urban Transformations in Akron, Ohio by Norma Schemschat

    Published 2024-12-01
    “…The US city of Akron, Ohio, has long struggled with the effects of urban decline. …”
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  15. 375
  16. 376

    Comparative Hypothesis Testing of Auroral Ionospheric Layer Causing Global Navigation Satellite System Scintillation by G. Blinstrubas, A. English, D. J. Stuart, D. L. Hampton, L. Lamarche, Y. Nishimura, S. Datta‐Barua

    Published 2025-01-01
    “…Abstract As Global Navigation Satellite System electromagnetic waves pass through the ionosphere, especially in auroral zones, ionospheric irregularities cause the waves to scintillate. …”
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  17. 377
  18. 378

    Ultrasonic, Molecular and Mechanical Testing Diagnostics in Natural Fibre Reinforced, Polymer-Stabilized Earth Blocks by C. Galán-Marín, C. Rivera-Gómez, F. Bradley

    Published 2013-01-01
    “…Ultrasonic pulse velocity (UPV) and mechanical strength testing techniques were then used to measure the porous properties of the manufactured natural polymer-soil composites, which were formed into earth blocks. Mechanical tests were carried out for three different clays which showed that the polymer increased the mechanical resistance of the samples to varying degrees, depending on the plasticity index of each soil. …”
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  19. 379

    Fractionation of rare earth elements in tropical soils from marine mudstone along a toposequence by Marvin D. Cascante, Cho-Yin Wu, Zeng-Yei Hseu

    Published 2025-01-01
    “…Marine mudstones are major reservoirs for rare earth elements (REEs), and their topographical positions influence the distribution of soil REEs. …”
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  20. 380

    A Roller Bearing Fault Diagnosis Method Based on LCD Energy Entropy and ACROA-SVM by HungLinh Ao, Junsheng Cheng, Kenli Li, Tung Khac Truong

    Published 2014-01-01
    “…This study investigates a novel method for roller bearing fault diagnosis based on local characteristic-scale decomposition (LCD) energy entropy, together with a support vector machine designed using an Artificial Chemical Reaction Optimisation Algorithm, referred to as an ACROA-SVM. First, the original acceleration vibration signals are decomposed into intrinsic scale components (ISCs). …”
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