Zobrazeno 1 - 10
of 14
pro vyhledávání: '"B. Y. Seah"'
Autor:
Zainuddin Nawawi, B. Y. Seah, Mohd Riduan Ahmad, Muhammad Abu Bakar Sidik, M. Z. A. A. Aziz, Gaopeng Lu, Muhammad Irfan Jambak, S. A. S. Baharin, Cooray, Mona Riza Mohd Esa
Publikováno v:
2019 International Conference on Electrical Engineering and Computer Science (ICECOS).
This paper investigates the characteristics of the ultra-high frequency (UHF) and Very High Frequency (VHF) emissions that associate with negative narrow bipolar events (NBEs) which occurred within reversal distance, drev of the base station. The UHF
Autor:
Mohd Riduan Ahmad, B. Y. Seah, Mona Riza Mohd Esa, Muhammad Abu Bakar Sidik, Gaopeng Lu, S. A. S. Baharin, Zainuddin Nawawi, N. Yusop, Muhammad Irfan Jambak
Publikováno v:
2019 International Conference on Electrical Engineering and Computer Science (ICECOS).
Study about characteristics of Very-High Frequency (VHF) and microwave radiation emitted by lightning discharge process focusing on the first return stroke and its subsidiary pulses from negative cloud-to-ground (-CG) flash is reported in this paper.
Autor:
Mohd Riduan Ahmad, Gaopeng Lu, M. H. M. Sabri, Vernon Cooray, S. A. Mohammad, Mohd Muzafar Ismail, N. Yusop, M. Z. A. A. Aziz, D. Periannan, Mona Riza Mohd Esa, B. Y. Seah, Zulkurnain Abdul-Malek
Publikováno v:
2018 International Conference on Electrical Engineering and Computer Science (ICECOS).
We present the observation of VHF impulses electric (E) field emissions found in two normal intracloud (IC) flashes accompanied by initial electric field changes (IECs) in a tropical thunderstorm. The data was collected on November $23 ^{\mathbf {rd}
Autor:
Mohd Riduan Ahmad, N. Yusop, Zulkurnain Abdul-Malek, M. H. M. Sabri, B. Y. Seah, D. Periannan, S. A. S. Baharin, S. A. Mohammad, Vernon Cooray, Mona Riza Mohd Esa, M. Z. A. A. Aziz, Mohd Muzafar Ismail, Gaopeng Lu
Publikováno v:
2018 International Conference on Electrical Engineering and Computer Science (ICECOS).
Lightning flash is an electrical discharge in air (dielectric breakdown) which emits electromagnetic (EM) fields across very wide spectra from a few Hertz up to visible wavelength. Electrical breakdown process is an important event that initiates lig
Autor:
M. H. M. Sabri, Gaopeng Lu, D. Periannan, M. Z. A. A. Aziz, Mona Riza Mohd Esa, S. A. Mohammad, Vernon Cooray, Mohd Muzafar Ismail, N. A. Shairi, Mohd Riduan Ahmad, B. Y. Seah, Zulkurnain Abdul-Malek, N. Yusop
Publikováno v:
2018 International Conference on Electrical Engineering and Computer Science (ICECOS).
This paper evaluates the capacitive antenna performance as a lightning sensor. The performance is evaluated by looking at two aspects, antenna structures and the background permittivity value of the antenna. Two experiments were carried out, Experime
Autor:
J. Y. Ong, M. H. M. Sabri, Mohd Riduan Ahmad, Mohd Muzafar Ismail, S. A. Mohammad, D. Periannan, B. Y. Seah, Mona Riza Mohd Esa, Zulkurnain Abdul-Malek, N. Yusop, Vernon Cooray, Gaopeng Lu, M. Z. A. A. Aziz
Publikováno v:
2018 International Conference on Electrical Engineering and Computer Science (ICECOS).
Antennas are the important elements in the lightning detection system. To improve performance of the lightning detection system, it is so necessary to improve the efficiency of the antennas. There are two types of antennas used in the system which ar
Autor:
Ammar Ahmed Alkahtani, Mona Riza Mohd Esa, Mohd Riduan Ahmad, M. Z. A. Ab Kadir, N. Yusop, D. Periannan, Zulkurnain Abdul-Malek, B. Y. Seah, Mohd Muzafar Ismail, M. Z. A. A. Aziz, Vernon Cooray, Y. J. Ong, Gaopeng Lu, N. A. Shairi, M. H. M. Sabri, S. A. Mohammad
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 228:012002
This paper evaluates the capacitive antenna performance (sensitivity and frequency shifting) as a lightning sensor in different antenna design structures. Two experiments were carried out, Experiment A - using two different structure antennas, an A3
Autor:
Mohd Riduan Ahmad, N. Yusop, Ammar Ahmed Alkahtani, Mohd Muzafar Ismail, Gaopeng Lu, Zulkurnain Abdul-Malek, Mona Riza Mohd Esa, M. Z. A. Ab Kadir, B. Y. Seah, D. Periannan, S. A. Mohamad, Vernon Cooray, M. H. M. Sabri
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 228:012006
Autor:
Vernon Cooray, M. H. M. Sabri, S. H. Mun, D. Periannan, S. A. Mohamad, M. Z. A. Ab Kadir, Mohd Riduan Ahmad, Mona Riza Mohd Esa, B. Y. Seah, Ammar Ahmed Alkahtani, Reza Firsandaya Malik
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 228:012009
Due to the uncommon and unpredictable phenomenon, lightning event become one of the challenging research topics for the scientist. The main thing that most capturing their attention is the lightning detection method which can improve the public safet
Autor:
Mona Riza Mohd Esa, M. H. M. Sabri, Ammar Ahmed Alkahtani, B. Y. Seah, M. R. Ahmad, N. A.I. Azmi, S. A. Mohamad, N. Yusop, D. Periannan, M. Z.A.A.B. Kadir, Mohd Muzafar Ismail, Vernon Cooray, Gaopeng Lu
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 228:012005
A lightning interferometer is a system that can determine the location of Very High Frequency (VHF) radiation of lightning. Such system has been studied and used for several decades ago. In this project, VHF Interferometer is used to determine the lo