Judul: Rute Dan Jadwal Pesawat Untuk Memenuhi Permintaan Penumpang : Kasus Airasia
Abstrak: Operasi suatu industri penerbangan merupakan suatu permasalahan manajemen yang kompleks. Secara umum, perusahaan dihadapkan pada persoalan dalam memenuhi permintaan calon penumpang dan upaya untuk memaksimumkan keuntungan. Salah satu dari masalahnya adalah bagaimana perusahaan memecahkan menentukan masalah rute armada dan jadwal penerbangan dengan penggunaan jumlah pesawat yang minimum. Rute armada dan jadwal penerbangan adalah aktifitas penting dalam operasi perusahaan penerbangan karena sangat mempengaruhi efisiensi penggunaan pesawat, pembuatan jadwal penerbangan, perawatan pesawat dan penjadwalan awak. Hal tersebut menentukan keuntungan perusahaan, tingkat pelayanan dan kemampuan bersaing di pasar. Proses penjadwalan penerbangan terdiri dari dua tahap yang saling bergantung, 1) tahap pembuatan jadwal dan 2) tahap evaluasi jadwal. Pada tahap pembuatan jadwal dikembangkan konsep jadwal berdasarkan perkiraan permintaan dan penguasaan pasar. Konsep jadwal tersebut diuji selama tahap evaluasi untuk kelayakan operasi, pertimbangan biaya dan performa. Pemeriksaan kelayakan pada tahap evaluasi terutama mencakup hal yang berkaitan dengan rute armada, ukuran armada, jadwal awak dan pengaturan perawatan. Penelitian ini menggunakan teknik jaringan ruang-waktu dalam memformulasikan model untuk masalah rute armada dan jadwal penerbangan. Penyelesaian masalah ini menggunakan software LINGO 8.0 dengan metode Branch and Bound.
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Judul: Optimasi Penjadwalan Armada Pesawat Terbang
Abstrak: One of the common issues faced by airline companies relies on fulfilling passenger demands for Origin-Destination (O-D) routes using all fleet types. This paper presents an optimization model to determine fleet assignment for each flight route in order to minimize total costs. The total costs consist of the operating cost and passenger spill cost. The model is considered as an integer linear programming which is further implemented within the Citilink airlines schedule, and was solved using software Lingo 11.0. The model produced a fleet assignment in order to fulfill demand for all O-Ds with minimum cost.
Keyword: fleet assignment, integer linear programming, optimization

Judul: Photosensor producing based on ferroelectric material of Ba0,5Sr0,5TiO3 doped by Ferrium Oxide (Fe2O3) on a P-Type Silicon Substate Si (100) applied as a digital camera with a single pixel image sensor
Abstrak: Thin film Ba0,5Sr0,5TiO3 (BST) doped with Fe2O3 was grown on p-type silicon substrate (100) using chemical solution deposition (CSD). It used the solvent 2-methoxyethanol with annealing temperature of 850°C and the doping treatment Fe2O3 of 2.5, 5, 7.5, 10 % of the mass formed BST. Pure BST had the highest absorption of 600 nm of light wavelength. Additions Fe2O3 moves highest absorption in the range of 560 nm. Fe2O3 addition was strengthening thin film sensitivity to the effects of light. In general, doping Fe2O3 10% was result the best absorbance and current-voltage of BST thin film. Electrical properties of thin films BST include dielectric, photoconductivity, and dissipation energy. Based on the current-voltage (I-V) analysis, pure BST and doped BST showed photodiode properties. Dielectric values obtained in the range from 23.32 to 243. Based on electrical conductivity data and energy dissipation, BST thin films have shown photodiode characteristics and are therefore suitable as light sensors. The image sensor in a digital camera is also a light sensor. This BST thin film has been scientifically proven to be a light sensor and also it can be applied as an image sensor. This is a novelty image sensor based on thin film Ba0.5Sr0.5TiO3.
Keyword: barium strontium titanate, thin film, photodiode, image sensor, digital camera