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  1. 241

    Dynamic Meshing Characteristic Analysis of Wind Power Planetary Gear Train by Yang Haiwan, Mutellip Ahmat, Zhao Yang

    Published 2015-01-01
    “…The dynamic meshing study is essential for the wind turbine which works in a harsh condition,especially,the gear train will be destructed by the time-varying load.Taking a wind turbine helical planetary gear train as study object,considering the influence of a variety of clearance and friction on meshing,a FEM model is built.By using the nonlinear dynamics method,the variation law of the gear tooth root bending stresses in the processing of the planet gear meshing with the sun gear or the internal gear is studied,the influence of the rotating speed on the meshing impact stresses is analyzed.Though the analyzing,with the speed increasing,the meshing stresses curve could get ahead,the impact stress of gear box and drive shaft will increase,while the curve of the impact stress are overall forward.However,the impact stress can’t always increase with the impact speed increasing.…”
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  2. 242

    Getting into the weeds by Anna Marchessault

    Published 2025-01-01
    “… First paragraph: In a world where industrial agriculture domi­nates, Vandana Shiva’s Agroecology and Regenera­tive Agriculture: Sustainable Solutions for Hunger, Poverty and Climate Change asks a pivotal question: Can we transform our food systems to heal the planet and its people? Shiva’s work challenges conventional farming, advocating for a future of regenerative, organic agriculture. …”
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  3. 243

    Gait Analysis and Trajectory Planning of Quadruped Wheel-legged Mobile Robot by Qing Li, Liting Zhao, Yuxi Feng, Rongshuai Liu, Peng Zhang

    Published 2021-04-01
    “…A quadruped wheel-legged mobile robot based on 2-UPS/(S+SPR)R closed loop parallel mechanism is designed for the complex surface environment of aliens planet. The optimal gait is obtained by comparing the stability margin and the barycenter adjustment of the robot in the process of motion, the stability of the robot in the static gait is measured by ZMP method, and the trajectory of the foot end is planned by the improved compound cycloid method. …”
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  4. 244

    'Green' strategies and approaches. A contribution from the off-site and upcycling of discarded shipping containers by Francesca Scalisi, Cesare Sposito

    Published 2021-12-01
    “…The Earth is in a vulnerable state that most scholars attribute to a model of infinite growth on a planet with limited resources. Taking into account this critical environmental context, the paper wants to stimulate new practices for the building industry by suggesting a systemic vision that simultaneously uses multiple sustainable and circular approaches and allows eliminating scraps and waste, by combining traditional and innovative techniques and technologies. …”
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  5. 245

    CONTACT FATIGUE LIFE ANALYSIS OF WHEEL EDGE REDUCER GEAR OF DRIVE AXLE OF LOADER BASED ON LOAD SPECTRUM (MT) by YANG SiYuan, SONG XuDing, ZHANG Lei

    Published 2023-01-01
    “…Finite element models of the sun wheel and the planet wheel were established in Hypermesh. Statics and transient dynamics were solved in Ansys Workbench according to the fatigue loading spectrum. …”
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  6. 246

    THE PRODUCTION CAPACITY OF LEACHATE COLECTED FROM PIATRA NEAMT LANDFILL by MIHAI-COSMIN BELCIU, ALEXANDRA-DANA CHIȚIMUȘ, VALENTIN NEDEFF, NARCIS BÂRSAN, RUSU DRAGOȘ

    Published 2016-03-01
    “… Lately it was seen an growth and range broadening of activities in all sectors of economy and society and therefore, the management of waste is a problem facing the entire planet. This paper purpose an analysis of a Romanian Landfill, concerning leachate production. …”
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  7. 247

    Mach Number Scaling of Foreshock Magnetic Fluctuations at Quasi-parallel Bow Shocks and Their Role in Magnetospheric Driving Throughout the Solar System by Brandon L. Burkholder, Li-Jen Chen, Katariina Nykyri, Norberto Romanelli, Menelaos Sarantos, Dave Sibeck, Jaye Verniero, Gina A. DiBraccio, Daniel Gershman, Martin Lindberg, Erin Kincade

    Published 2025-01-01
    “…However, the solar wind flow is highly irregular, and on top of solar cycle variations these values for average M _A at each planet do not capture extreme events. Statistical analysis of OMNIWeb observations from 2015 to 2023 shows that sustained (30 minutes or more) high M _A (30–100) occurs at Earth about once a month. …”
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  8. 248

    Le concept de less good idea face aux patrimoines controversés by Monica Heintz

    Published 2024-12-01
    “…In August 2022, at the Centre for the Less Good Idea in Johannesburg, I took part in a creative residency that explored photographs and moving images captured during Father Aupiais’s mission to Dahomey in 1930, which are part of the Archives of the Planet at the Musée Albert Kahn. On that occasion, based on ten photographs, I wrote and directed a children’s tale, to be performed by three South African artists and a Beninese musician with the help of a Pepper’s ghost setup. …”
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  9. 249

    From the ethology of animals to the human ecology by Zbigniew Łepko

    Published 2020-12-01
    “…Today it isn’t possible to predict the future of Homo sapiens on our planet, however, it is our duty to prepare for our struggle to survive. …”
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  10. 250

    Characterization and modelling of exoplanetary atmospheres by Charnay, Benjamin, Drossart, Pierre

    Published 2023-04-01
    “…Until recently, space and ground-based observatories allowed only a few planets to be observed with spectroscopic instruments. …”
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  11. 251

    A pluviosidade na Amazônia meridional: variabilidade e teleconexões extra-regionais by Rafael Rodrigues da Franca, Francisco de Assis Mendonça

    Published 2016-12-01
    “…The Amazon region is one of the longest warm and moist areas of the Planet, with rainfall around 2300 mm/year on average, and up to 5000 mm/year in its western sector. …”
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  12. 252

    Cultural environments with more-than-human perspectives. Prototyping through research and training by Marie Davidová, Shany Barath, Susannah Dickinson

    Published 2023-06-01
    “…We argue that to achieve social justice, we must also reach environmental justice and become in synergy with the planet, with Gaia. This ethos is presented in multiple case studies demonstrating the relationships between designed and existing socio and environmental systems, evaluating whether our actions on the Earth and use of non-renewable resources are sustainably innovative and what this means for more inclusive practice, the academy and our pedagogical foci and design methods.   …”
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  13. 253

    Intelligence artificielle, données volumineuses et conservation de la biodiversité. by Jérôme Duberry

    Published 2021-10-01
    “…Artificial intelligence (AI) and big data enable a better understanding of the planet and its inhabitants. AI also supports participatory science efforts by automating species recognition in some data collected by citizens. …”
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  14. 254

    Study on the Influence of Floating Sun Gear on the Dynamic Characteristic of Planetary Gear Transmission System by Zhanli Yang, Yinghui Liu, Jirui Zhu, Feiyue Wang, Dong Zhen, Huibo Zhang

    Published 2021-04-01
    “…In a planetary gearbox, the sun gear is usually set to float to balance the sharing of loads among planet gears. However, this floating set will result in the variation of pressure angle, overlap ratio and meshing phase in the meshing progress. …”
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  15. 255

    A Multispecies Design Approach in the Eure valley. Three Lessons from a Design Studio in Landscape Architecture by Björn Bracke, Sophie Bonin, Bruno Notteboom, Hans Leinfelder

    Published 2022-04-01
    “…The current state of our planet gives rise to a range of new perspectives in the environmental humanities that take “multispecies” viewpoints into account. …”
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  16. 256

    Video communication, blue marble awe, and attitudes toward climate change and renewable energy by Ion Bogdan Vasi, Mario Paez-Arellano

    Published 2025-01-01
    “…Three interventions used single message approaches, which focused on facts about climate change science, facts about solar PV technology, or the emotion of blue marble awe (the feeling of awe for the Earth arising from the realization that we live on a fragile planet). Two interventions used dual message approaches, which combined blue marble awe with either climate change science or solar PV technology facts. …”
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  17. 257

    Restoring Planetary Health Through Partnerism by Teddie Potter

    Published 2024-12-01
    “…Planetary Health is a transdisciplinary field and a social movement that addresses human disruptions of Earth’s natural systems and the impact these disruptions have on human health and on all life on the planet. Planetary Health calls for global cultural transformation, a “Great Transition” that will require rapid structural changes across all human institutions. …”
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  18. 258

    Opportune detections of global P-wave propagation from microseisms interferometry by Boué, Pierre, Tomasetto, Lisa

    Published 2023-06-01
    “…In addition to dominant surface waves, these sources generate body waves that travel through the deep structures of our planet. Despite these sources’ inherent complexity, interferometric methods allow isolating coherent waves for imaging applications. …”
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  19. 259

    Finding Solutions to Ecological and Environmental Crisis with a New Ethics by Eva Pechočiaková Svitačová

    Published 2024-02-01
    “…It urges people to be able to take responsibility for the consequences of their actions and not to endanger the survival of humanity on the planet and also of all life. With this in mind, it should also play a part in shaping their moral character. …”
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  20. 260

    Processing Agroindustry By-Products for Obtaining Value-Added Products and Reducing Environmental Impact by Iván Almaraz-Sánchez, Aldo Amaro-Reyes, Jorge Alberto Acosta-Gallegos, Magdalena Mendoza-Sánchez

    Published 2022-01-01
    “…Over four billion tons of foods are produced annually on the planet, and about a third is wasted. A minimal part of this waste is incinerated or sent to landfills for treatment, avoiding contamination and diseases; the rest is disposed of elsewhere. …”
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