Ditemukan 2 dokumen yang sesuai dengan query
Rifki Kosasih
"Bertahun-tahun yang lalu, para peneliti menemukan beberapa aliran yang dapat menghasilkan dinamo. Salah satu contohnya adalah aliran PAS. Bachtiar, Ivers and James (BIJ, 2006) mencoba melakukan planarisasi pada aliran PAS, tetapi mereka tidak dapat melakukan planarisasi pada aliran PAS karena bagian toroidal dari aliran PAS ini tidak memenui kondisi konsistensi. Bachtiar(2009) mencoba memodifikasi model PAS ini. Modifikasi model PAS ada dua yaitu model BIPAS dan model QUASI PAS. Yang akan diteliti dalam tesis ini adalah model BIPAS dan tesis ini adalah kelanjutan dari penelitian Bachtiar(2009). Yang akan di analisis dalam tesis ini adalah pengaruh komponen poloidal pada planarisasi BIPAS dalam membangkitkan medan magnet dengan cara meningkatkan proporsi komponen poloidalnya. Dalam penelitian ini ditemukan bahwa komponen poloidal pada model BIPAS terplanarisasi memberikan peranan penting dalam membangkitkan medan magnet walaupun hasil yang diperoleh belum ada satupun model yang dapat membangkitkan medan magnet.
In many years, scientists found many flows that can produce dynamo. One example is PAS flow. Bachtiar, Ivers and James (BIJ, 2006) try to do planarizing process on the PAS flow, but they could not planarized the flow since the toroidal part of the flow does not satisfy the consistency condition. Bachtiar (2009) tried to modify the PAS model. There are two modification of PAS model, they are BIPAS and QUASI PAS. This paper will discuss the BIPAS model. This paper the continuation of Bachtiar?s research (2009). We analyze the effect of poloidal component on the planarized BIPAS model in generating a magnetic field with increase the portion of planarized poloidal part of this flow. We found poloidal component on the planarized BIPAS give an important role in improving the magnetic field. Although, we are not able to find any successful dynamos."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2012
T32766
UI - Tesis Open Universitas Indonesia Library
McKinley, Arnold
"This book develops the analytical theory of perfectly conducting and lossy metal, circular, round-wire loop antennas and nano-scaled rings from the radio frequency (RF) regime through infrared and the optical region. It does so from an antenna theory perspective. It is the first time that all of the historical material found in the literature has appeared in one place. It includes, particularly, material that has appeared in the literature only in the last decade and some new material that has not yet been published. The book derives the input impedance, resonances and anti-resonances, the RLC circuit model representation, and radiation patterns not only of closed loops and rings, but also of loops and rings loaded randomly and multiply with resistive and reactive impedances. Every derivation is compared with simulations run in Microwave Studio (MWS). It looks carefully at the physical response of loop antennas and nano-rings coupled to a source at one point in the periphery and at such rings illuminated by a plane wave arriving from every different direction with the E-field in all polarizations. The book ends with a brief look at polygonal loops, two dimensional arrays of nano-rings, and Yagi-Uda arrays."
Singapore: Springer Nature, 2019
e20509628
eBooks Universitas Indonesia Library