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Etika politik

pandangan Raja Ali Haji dalam Tsamarat al-muhimmah

Political ethics according to Raja Ali Haji, the late king of Riau.

Daulat* dalam bahasa politik Melayu secara sederhana dirumuskan sebagai
kekuatan dan kekuasaan yang "tinggi" dan "besar", mencakup lahir dan batin,
yang setiap saat berkembang. Dengan demikian ... Bahasa Politik Islam. Jakarta:
Gramedia, 1 994, hal. 49- 50. la juga berbeda dengan konsep "kedaulatan" (
sovereignity) atau bahkan "negara" (nationstate) dalam pengertian modern. Lihat
Azyumardi Azra. "Bahasa Politik Islam di Asia Tenggara: pengantar penjelajahan
." Dalam ...

Strategy and plan of action of scientific research on desertification

proceedings of the National Forum of Scientific Research on Desertification in the Sudan : Al Sharga Hall, University of Khartoum, Khartoum, Sudan, 16-18 March 2004

Omdurman Islamic University University of Khartoum Mekki Abdel Latif Omer
Muna Mohamed El Haj Dr. Maha Ai Abdel Latif Prof. Mahdi Amin El Tom
Mawahib Mohi El Din Mohamed Mawahib Musa Ahmed Musa Abdel Bagi Yousif
Dr.

Parodi tentang orang yang ingin bunuh diri dengan pistol air

PARODI TENTANG ORANG YANG INGIN BUNUH DIRI DENGAN PISTOL AIR (
Sekelumit Cerita) Parodi tentang Orang yang Ingin Bunuh Diri dengan Pistol Air
bukanlah judul salah satu puisi. Tapi judul buku. Pistol air tidak menembakkan ...

Advanced Modulation Formats and Multiplexing Techniques for Optical Telecommunication Systems

The main objective in the communication systems is to transmit as much as possible information in as low as possible bandwidth and cost. Different modulation formats such as M-ary ASK, QPSK/DQPSK, QAM and DB are proposed to improve WDM channel capacity. M-ary ASK improves the channel capacity by transmitting more than one bit per signal element utilizing different signal levels or multilevel signals. QPSK/DQPSK utilizes multiple phases for transmit more than one bit per signal element. QAM improve channel capacity by transmitting more than one bit per signal element utilizing different phases and different amplitudes. DB use either three amplitude levels or two amplitudes (like binary signals) and one redundant phase element instead of the third level. All the advanced modulation schemes are limited to double or triple the channel utilization but all of them improve the channel capacity or the spectral efficiency. On the other hand, different multiplexing techniques such as TDM, WDM, OFDM, PDM and DCDM are proposed to improve the channel utilization. In TDM, different users share the same WDM channel by allocating each user different time slot. Using WDM, the available optical spectrum can be to utilize to support multiple numbers of users. In this technique, each user is assigned a wavelength as the carrier signal. In OFDM, utilizing IDFT many different RF signals can be assigned as the carrier for many low bit rate users. PDM allows two users to be carried over two different polarizations, vertical and horizontal polarizations. In DCDM, different users signed with different RZ duty cycles to share the same WDM channel. Except PDM, all other multiplexing techniques can support multiple users. Eventhough multiplexing techniques improve the channel utilization, but all of them except PDM, failed to improve the spectral efficiency of the link. PDM act like modulation schemes that can double the channel capacity or the spectral efficiency. Amongst all these multiplexing techniques and modulation schemes, PDM and QPSK/DQPSK or combinations of them have obtained the most attention in the communication systems. Finally, DCDM can reduce the clock recovery frequency significantly.

The main objective in the communication systems is to transmit as much as possible information in as low as possible bandwidth and cost.