Judul: Prosedur Pemilihan Deadhead Pada Penerbangan Internasional
Abstrak: Dibimbing oleh PRAPTO TRI SUPRIYO dan M. NUR AIDL ._ Masalah pairing awak penerbangan internasional me1iputi penugasan awak: pada penjadwa1an pesawat sedemikian sehingga biaya keseluruhan menjadi minimal dan aturan kerja yang berlaku dapat dipenuhi. Karakteristik dari penerbangan ini adalah peneroangan intemasional yang biasanya tidak beroperasi pada jadwal harlan. menyebabkan jarangnya penerbangan dan waktu istirahat yang panjang bagi a"'l3k. . Untuk menge1iminasi waktu istirahat panjang dan mengurangi biaya keseluruhan, sangatlah menguntungkan untuk melakukan deadhead awak, yaitu dengan menugaskan awak terbang sebagai pe!lumpang umuk rtlf'.lakukan tugas lain dengan utilitas yang lebih baik. Dalam tulisan ini, metodologi heuristic dibangun untuk mensembangkan solusi pairing awak melalui pemilihan yang efisien dari penerbangan deadhead. Metodologi ini menggunakan detennina.si solusi dual dari relaksasi program
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Judul: Penyelesaian Masalah Crew Pairing Maskapai Penerbangan dengan 0-1 Integer Programming
Abstrak: Crew pairing is a sequence of flights that begins from a crew base and ends at the same crew base that will be served by a member of crew. Determination of crew pairing is one part of the operational cost efficiency efforts on commercial airline. The purpose of this study is to minimize the number of crew pairing and the total waiting time between two flights (i.e., sit time). This problem is formulated as 0-1 Integer Programming. Implementation on the airline of Air Asia with 25 flights schedule within a period of one day provides 9 crew pairing with the total sit time 2075 minutes.
Keyword: crew pairing, crew scheduling, crew, airline

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell