OPAC - Artikel Jurnal & Majalah

Pengarang	:	Matthew R. Francis
Nama Majalah/Jurnal	:	Siam News
Volume / Edisi	:	58 (No. 2)
Halaman	:	1-3
Abstrak	:	As the impacts of climate change continue to escalate, all regions of the globe are experiencing an uptick in extreme weather events: prolonged droughts, severe hot and cold spells, recurrent hurricanes (see Figure 1), and violent thunderstorms with attendant tornadoes. The scale and frequency of these occurrences defy our practices of language — not because thunderstorms, droughts, or hurricanes are unprecedented, but because we have no historical record of past incidents whose magnitudes and frequencies compare to present-day threats. The new normal is no normal.

Pengarang	:	-
Nama Majalah/Jurnal	:	American Journal of Physics
Volume / Edisi	:	89 (No. 11)
Halaman	:	993-1001
Abstrak	:	The gravitational interactions of irregular shapes are rarely discussed in the compulsory schooling system and sometimes even ignored at the university level. This omission is due to the complexities encountered in extending Newton's law of gravitation to bodies that are not spherical. However, a deep understanding of the link between the gravity and the shape is quite important to interpret some basic facts of nature. In this paper, we show how simple concepts can be used to create a more general algorithm that has been implemented in matlab to compute the gravity of irregular bodies. Shapes are described in terms of Standard Tessellation Language files, the standard format for 3D printing. This approach to teaching allows students to model physical bodies, and the 3D representation of complex problems can help students acquire a more complete understanding of physics.

Pengarang	:	Lanjing Bao Rachel Kuske Daniil Yurchenko Igor Belykh
Nama Majalah/Jurnal	:	Siam News
Volume / Edisi	:	58 (No. 2)
Halaman	:	1
Abstrak	:	Energy harvesting is the process of capturing some form of existing energy from the environment and converting it into electrical energy. One means of doing so is through vibration-based energy harvesting, which can source energy from human activities like walking and running and from the cyclic or random loading of buildings, bridges, and other structures or machines. Energy harvesting devices typically include an automated component that captures mechanical energy and transforms it into electrical energy. While existing research suggests that nonlinear systems may harvest energy more efficiently than linear systems [6], relatively few studies have thoroughly explored the dynamic mechanisms that enable successful nonlinear energy harvesting.