Stromboli or Russian roulette tourism by Rémy Knafou

“…Stromboli is one of the most active volcanoes on the planet; it has also become a tourist hotspot for just over half a century.The recent eruptive paroxysms of summer 2019 have spectacularly highlighted this paradoxical situation because, for the first time in its history, this paroxysm occurred during the tourist season. …”
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Research of the Two-stage Planetary Level Parallel Axis Structure of Wind Power Gearbox Assembly Technology by Zou Junwei, Huang Junqiong, You Jing

“…Wind power gearbox assembly process quality has a decisive influence on the wind power gearbox assembly quality,it has important significance for improving the reliability of wind power gearbox.Aiming at the three assembly process difficulties problems of the two-stage planetary level parallel axis structure of wind power gearbox about planetary wheel,planet wheel axial momentum assurance and the measurement,body up and down box after box,surface level degree guarantee.Firstly,the deeply analysis planetary gear assembly parts matching relationship,the principle of bearing axial clearance control,the structure of rear housing,and then,the solution is put forward.Finally,the process scheme is verified.…”
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Liquid anti-fire missiles. The method of extinguishing fires by Andrii Sokol, Halyna Sokol

“… Such types of fires as forest fires are becoming an increasingly acute problem around the world affecting life on our entire planet. In just the past few years, large fires have besieged a number of countries, including the United States, Canada, Australia, Turkey, and Brazil, and even such regions as Greenland and Northern Europe. …”
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Effect of Nano-Ti N Particle on Mechanical Property of TiN-Ni Alloy Plating by Huai Zunke, Nan Huan, Wang Feng

“…Application of chemical deposition technology,a layer of nanometer TiN-Ni alloy is coated in the planet gear shaft of automotive transmission,the tests show that the nano-TiN particle increase the hardness and the wear-resisting performance and the chemical resistance of the plating of TiN-Ni alloy,also increase the friction coefficient for it.The nano-TiN particle is diffused in the unit cell of the layer of nanometer TiN-Ni alloy,they form the plating of metal alloy and ceramic,the plating is densification and hardness,there are a lot of the hardness nano-TiN,the mechanical property of TiN-Ni alloy coating is improved.…”
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Study on the Dynamic Performance of Planetary Gear Transmission System of the MW Level Wind Power Speed-growth Gearbox by Wang Chunguang

“…The load sharing planetary gear speed-growth train for wind power generator is studied,which is composed of two stage planetary gear and one stage plane gear.The influence of external load excitation and time varying mesh stiffness is considered,and the system dynamics model including radial and torsion is deduced in detail.The dynamic mesh force between planet gear and sun gear and annular gear ring are analyzed.The radial velocity and torsional vibration angular velocity change on the central components of two stage planetary gear and the mesh force characteristics are obtained.This provides theoretical basis for the dynamic optimization design of the load sharing planetary gear speed-growth train.…”
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Design and Research of the Performance of Torque Transmission of Locking Disc used to Wind Turbines by Jing Chaoyin

“…The locking disc is the connections between main shaft and input planet stage of wind turbines gearboxs.Because of the high cost of fault maintenance,the requirement of working reliability is more strict.Based on elastic plastic deformation theory of thick wall cylinder in the field of mechanics of materials,and combining the deformation compatibility condition,the calculation method of torque transmission of locking disc is researched,and some important factors which effects the performance of torque transmission are analyzed by combining with practical engineering.It provides theoretical basis for design,manufacturing and improving the working reliability of shrink disc.It is helpful to engineering application.…”
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Morte e rinascita di una risorsa sostenibile: le terre d’acqua e il riso Gigante Vercelli by Davide Porporato

“…Today the cultivation of this variety of rice, which has a peculiar, natural resilience to rice blast, the most serious fungal disease on the planet, is possible everywhere, but its growing areal is limited to Piedmont. …”
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Analysis of the Transmission Scheme of CR-CR Planetary Gear Mechanism based on Line Velocity Vector Method by Liu Chenfu, Zhang Yushu, Qin Yongjie

“…The rotation direction and speed of each element in the planetary gear mechanism can be directly shown by drawing the linear velocity vector diagram of the gear ring,planet carrier and sun wheel in the CR-CR planetary gear mechanism. …”
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Comment l’île Maurice est-elle devenue Covid free ? by Nathalie Bernardie-Tahir

“…After being affected by the COVID-19 epidemic in March 2020 and having implemented a whole series of sanitary measures, Mauritius has become, for more than ten months, one of the few Covid-free States on the planet, until a new epidemic wave hits it again in March 2021. …”
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Automatic Grape Cluster Detection Combining YOLO Model and Remote Sensing Imagery by Ana María Codes-Alcaraz, Nicola Furnitto, Giuseppe Sottosanti, Sabina Failla, Herminia Puerto, Carmen Rocamora-Osorio, Pedro Freire-García, Juan Miguel Ramírez-Cuesta

“…Additionally, the capability of several vegetation indices calculated from Sentinel-2 and PlanetScope satellites to estimate grape clusters was evaluated. …”
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ANALISIS ELEMEN GAME DALAM TAMAGOTCHI PIX SEBAGAI IMPLEMENTASI HEWAN PELIHARAAN VIRTUAL by Kessy Situmorang

“…Tamagotchi is an educational-based toy that is similar to raising animals directly by raising one pet character from baby to adult and then returning it to its home planet in good condition. Users can carry out the tasks given to learn more about how to care for animals with care and learn to be more disciplined. …”
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La Création chymique. L’exégèse newtonienne de la Genèse selon la correspondance avec Burnet (1680-1681) by Frédéric Mathieu

“…The seas and the mountains resulted from the irregular coagulation of the parcel of Chaos assigned to our planet, in the same way as a saltpeter solution coagulates. …”
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Preventive vaccines for COVID-19. An expectant reality by Ana María Ramos Cedeño, Yeny Dueñas Pérez, Alicia del Rosario Ramírez Pérez

“…The high transmissibility and mortality, with the involvement of almost all the countries on the planet, without distinction between economic systems, it has unleashed a race to obtain a preventive vaccine that could stop the tragedy. …”
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Sustainable Development in international relations theory: its presence or abscence. A proposal for a new paradigm by Sagrario Morán-Blanco

“…Second, it raises a need for a mainstream that contributes, on the one hand, to the theoretical development of the discipline and, on the other, to the progress towards sustainability and that of the planet through the attainment of the SDGs. The mentioned mainstream could be called «Sustainable Development Paradigm».…”
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Health emergency and impermanence by Giuseppe De Giovanni

“…Health Emergency is a reality in our planet’s political, economic and social scene and finds its meaning in emergency for men and caused by man that does not own a cultural and material identity any more but wanders looking for territories that could host him and recognize his right to live.…”
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Mary Colter au Grand Canyon ou l’invention d’un paysage by Patrick Pérez

“…The Arizona Grand Canyon is one of the most spectacular sites on the planet. Yet it took four centuries to form the vision of this landscape as we know and share it today. …”
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Między światami. Poszukując kształtu rzeczywistości po antropocenie by Maciej Kijko

“…Recognizing humans as a force of geological significance, it is also necessary to take into account our responsibility for the state of the world and the search for ways to adequately deal with the threat posed by the deepening degradation of the planet, which is ultimately likely to lead to the disappearance of the human and many other species. …”
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The Reception of Neptune’s Discovery in British and American Protestant Theology by Zenon Roskal, Jacek Rodzeń

“… The discovery of the planet Neptune in 1846, first theoretically and then observationally, was a 19th-century event that went beyond the interests of the narrow group of astronomers of the time. …”
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Technology as an enabler of a new ecosystem responsive urbanism. Interview with Caro Ratti (CRA Studio) by Giorgia Tucci, Carlo Ratti Associati

“… In recent decades, the growing awareness of the exhaustibility of our planet’s resources has placed sustainability at the centre of current global policies that, to cope with the complex international situation, have set goals for sustainable development, promoting actions that provide ecological, digital and social innovation. …”
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Investigating the Variation of Selected Kepler Objects Mid-Transit Times by Çağlar Püsküllü, Oguz Ozturk

“…We derived minima times from the transit curves of star-planet systems, Kepler-412, Kepler-422, Kepler-427 ve Kepler-435 observed by Kepler space telescope, using the Kwee - van Woerden method and Gauss function fitting. …”
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