Výsledky vyhledávání - "Rahmayanti, Handika Dany"

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Slope of Dry Granular Materials Surface is Generally Curved

Autor: Akbar, Fathan, Yuliza, Elfi, Amalia, Nadya, Rahmayanti, Handika Dany, Abdullah, Mikrajuddin

As if it has become a consensus that the slope of the granular heap is straight, and from that, an angle of repose is defined. However, closer inspection shows that the slopes are not truly straight, instead, more often they have convex shapes, altho

Externí odkaz: http://arxiv.org/abs/2112.05264

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How a Snake Can Raise its Neck High although its Body is Very Soft. Similarity with a Thin Plastic Tube Filled with Air

Autor: Rahmayanti, Handika Dany, Margaretta, DesyanaOlenka, Amalia, Nadya, Utami, Fisca Dian, Yuliza, Elfi, Munir, Rahmawati, Rizkiyah, Nova Lailatul, Abdullah, Mikrajuddin

The bodies of snakes, such as king cobras, are very soft so that it is nearly impossible for them to raise their heads higher than around one meter. By direct measurement, we were only possible to hold the body of a freshly killed cobra vertically at

Externí odkaz: http://arxiv.org/abs/1812.02348

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Experiment and Modeling of Rice Winnowing: Granular Segregation Method in Ancient Traditions

Autor: Munir, Rahmawati, Rahmayanti, Handika Dany, Murniati, Riri, Rahman, Dui Yanto, Viridi, Sparisoma, Abdullah, Mikrajuddin

Rice winnowing is a process of separation of small and large rice grains by air flow practiced since the ancient human history especially in societies where rice is the main source of carbohydrate (in Asia, Africa, and Latin America). Indeed, this pr

Externí odkaz: http://arxiv.org/abs/1810.11076

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Stability of Granular Tunnel

Autor: Yuliza, Elfi, Amalia, Nadya, Rahmayanti, Handika Dany, Munir, Rahmawati, Munir, Muhammad Miftahul, Khairurrijal, Khairurrijal, Abdullah, Mikrajuddin

We demonstrated the stability of tunnels made of granular matters is strongly dependent on the grain size, tunnel diameter, and water content in the granules. Larger tunnel radius, larger grain size, and too much water content tend to destabilize the

Externí odkaz: http://arxiv.org/abs/1802.07906

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