Judul: Analisis Pola Diversiflkasi Tanaman Musim Kemarau Secara Teknis Dan Agronomis Pada Daerah Irigasi Cihea
Abstrak: In dry season irrigation water often could not fulfill crop water requirement. In order to meet water availability and crop water requirement, it is necessary to make crop water diversification pattern in combination with irrigation level supply.
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Judul: Analisis Preferensi Stakeholder Terhadap Diversiflkasi Tanaman Musim Kering Di Daerah Irigasi Cihea
Abstrak: Management of Irrigation involves stakeholders, such as fanners, Local Government. Distric Agency for Agricultural Services and Irrigation Management Unit. Each of them has their own preference, farmers and Local Government prefer to profit; Distric Agency for Agricultural Services prefers to food security, while Irrigation Management Unit prefers to equity of cultivated area. Optimizing the three preferences is relatively difficult, besides the difficulty in technical factor likes water scarcity. One of the aitematif of solving this problem is applying MCDM method through AHP (Analytical Hierarchy Process) technique.
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Judul: The Half-life of 118Og294 Nuclides Using Direct Calculations and Semiempirical Formulas
Abstrak: Hingga saat ini belum ditemukan inti dengan nomor atom di atas uranium (nuklida transuranik) yang terbentuk secara alami. Para peneliti mempelajari waktu paruh nuklida transuranik menggunakan pendekatan-pendekatan secara empiris dan studi teori yang matang agar dapat dijadikan sebagai panduan eksperimen di masa depan. Nuklida transuranik yang dipelajari adalah nuklida 118Og294 dan nuklida turunannya yaitu 116Lv290 dan 114Fl286. Waktu paruh dari nuklida ini dihitung menggunakan perhitungan secara langsung yang mempertimbangkan potensial Coulomb, nuclear proximity potential 2010, dan potensial sentrifugal. Waktu paruh nuklida ini juga dihitung menggunakan formula semiempiris. Hal ini bertujuan untuk mengetahui perbandingan waktu paruh hasil perhitungan secara langsung dan perhitungan menggunakan formula semiempiris terhadap hasil eksperimen. Hasil perhitungan waktu paruh secara langsung untuk ketiga nuklida tersebut sebesar 0,00075 sa, 0,0073 sa, dan 0,24 sa. Hasil perhitungan waktu paruh secara langsung ini lebih mendekati hasil eksperimen yang dilakukan di Joint Institute for Nuclear Research (JINR) dibandingkan dengan hasil perhitungan waktu paruh dengan formula semiempiris., Until now, there hasn’t been found a nucleus with an atomic number above uranium (transuranic nuclides) which is formed naturally. Researchers studied the half-lives of transuranic nuclides using empirical approaches and well-developed theoretical studies to guide the experiments in the future. The transuranic nuclides are studied were 118Og294 and its derived nuclides, namely 116Lv290 and 114Fl286. The half-lives of these nuclides are calculated using direct calculations that take into account the Coulomb potential, nuclear proximity potential 2010, and the centrifugal potential. The half-lives of these nuclides are also calculated using the semiempirical formula. This aims to determined the comparison of the half-life of the direct calculation and semiempirical formula’s results to the experiment results. The direct half-life results for these nuclides are 0.00075 sa, 0.0073 sa, and 0.24 sa. The results of this direct half-life calculation are closer to the experiments is conducted at the Joint Institute for Nuclear Research (JINR) than those of semiempirical formula.
Keyword: nuclear proximity potential 2010, semiempirical