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2013-05-08 08:51:40
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Publikasi Penelitian Dosen

Analisis Tingkat kapabilitas Dan Level Sigma Ketepatan Waktu Perjalanan KRL Commuter Line bekasi pada Penerapan Pola Single Operation Di PT. KAI Commuter Jabodetabek
Abstrak

PT. KAI Commuter Jabodetabek is a subsidiary of PT Kereta Api (Persero) which held a service commuter rail transportation services by means of electric train in the Jabodetabek area. On July 2, 2011, PT KAI Commuter Jabodetabek start enforcing the operation pattern Single Operation. Single Operation is a rule that requires a whole set of KRL Jabodetabek, especially the train, must stops at every station. With Single Operation of this pattern is the main constraint is the PT KAI Commuter Jabodetabek passenger complaints about KRL Commuter Line schedule that does not come on time which resulted in KRL Commuter Line trip becomes longer than schedule. To improve the quality of the PT KAI Commuter Jabodetabek in terms of timeliness of KRL Commuter Line of arrival at the destination station, the require level of capability and level of the sigma analysis for the quality level of performance KRL Commuter Line trip, especially during rush hour in the morning and evening.   

Throught analysis of the capabilities and level of the sigma can be know until the sigma level what level of the process that the PT. KAI Commuter Line No. 5207 today. In this study, the Valibles Studied were the time of the arrival KRL Commuter Line No. 5238 from bekasi to Jakarta Kota Station. From the calculation Capability of the time delay in the arrival Process KRL Commuter Line Number 5207 at Jakarta Kota station got the result Potencial Capability (Cpu) at -0.173, PPM value 662800 ppm, sigma is -0.42. The Result of the calculation capabilities of the time delay in the arrival process KRL Commuter Line Number 5238 at Bekasi station got the result Potencial Capability (Cpu) at 0.266. PPM value 785200 ppm. Sigma is -0.79. Based on the result of the evaluation Conducted by a cause effect diagram can be known factors that cause delay in the arrival of Commuter Line Bekasi is the queue with long-distance trains, yet accurate calculation Gapeka, KRL Commuter Line series often have technical problems, a series of often strike  KRL Economy, signaling machinery and wesel orders often distrubed, the crew and officers KRL trip came too late.

 

Key words : Process Capability, Sigma Level, Delay Arrival of KL

 

 

 

Penulis : NUR YULIANTI HIDAYAH, ST.MT [PDF File] didownload : 0 x

Pengembangan Model Pemilihan Lokasi Akhir Pembuangan Sampah Perkotaan (Studi Kasus : Kota Jakarta Timur)
Abstrak

Determination of temporary shelters garbage (TPS) and the final disposal site (TPA) is a very important, that pile of garbage does not interfere the daily activity of society, their comforts, and the beauty of the city. City government has set the TPS at all kelurahan, such as in Kota Jakarta Timur. There are a number of pools spread over 60 kelurahan and 10 districts. Meanwhile, the TPA is available only 3 locations spread and allocated to accommodate waste from around the TPS in Jakarta. Therefore in this study developed a model of urban waste disposal site selection based on their shortest distance using binary integer linear programa method with the help of microsoft excel solver. As for data used in them is the location of the TPS and TPA, as well as the distance between them, which is derived from Dinas Kebersihan Jakarta Timur, Central Board of Statistics (BPS), and google maps. Optimization model is expected to help the government in determining the exact location of each TPA and TPS

Keywords  : garbage, TPS, TPA, binary linear integer programa, microsoft excel solver     

 

Penulis : NUR YULIANTI HIDAYAH, ST.MT [PDF File] didownload : 1 x

Abstrak

Preparing a course schedule is a common activity performed by all colleges. However, it is hard to make a course scheduling system that Jits for all colleges. This is understandable because there are differences in the education system and the existence of specific characteristics on the level of education providers that causes scheduling system is unique compared with the scheduling system from other education providers.

Course scheduling problem can be viewed as a combinatorial problem in term of composing a number of objects that comprise of constraints, such as rooms and lectures on a set of specific time slots, so that the arrangement makes up a schedule that meets specified requirements. A series of iteration are performed in moving and arranging these objects, generating the best combination of position with minimum conflict as possible to produce an optimized schedule This paper presents the result of Tabu Search (TS) implementation for solving course-scheduling problems in Department of Informatics, Faculty of Engineering University of Pancasila. In this implementation, TS takes the main role in managing the selection of best solutions through meta -heuristic approach to generate optimum combinations that involve calculation of 5 hard-constraints and 5 soft-constraints that specific to scheduling problems for this department. The result from several experiments shows that TS is quite effective in relieving the schedule from conflicts in the range of 90 % to 100 % with a wide variety of constraints involved

 

Penulis : ANDIANI NANIEK , Dra., M.Kom [PDF File] didownload : 1 x

Uji aktivitas antibakteri ekstrak n-heksan, etil asetat dan metanol dari buah tanaman kayu ules (Helicteres isora L.)
Abstrak

Telah dilakukan penelitian aktifitas antibakteri dari ekstrak n-heksan, etil asetat dan metanol dari buah tanaman kayu ules (Helicteres isora L.). Ekstrak diperoleh dengan cara digesti pada suhu 50oC. Proses ekstraksi dilakukan secara sinambung/bertingkat dengan cairan penyari n-heksan, etil asetat dan metanol terhadap serbuk simplisian kayu ules. Uji aktifitas antibakteri menggunakan bakteri Staphylococcus aureus dan Escherichia coli yang memberikan trasmitan 25% pada panjang gelombang 580 nm. Uji dilakukan dengan metode difusi agar dengan pencadang cakram kertas. Pengujian aktifitas antibakteri menghasilkan kesimpulan bahwa ekstrak etil asetat dan metanol dari buah tanaman kayu ules (Helicteres isora L) mempunyai aktifitas antibakteri terhadap bakteri Staphylococcus aureus.

Kata kunci: Helicteres isora L, Staphylococcus aureus, Escherichia coli, antibakteri

Penulis : YUNAHARA FARIDA , Dr [PDF File] didownload : 2 x

Profil Fitokimia dan Identifikasi Logam Secara Spektrofotometri Serapan Atom dari Buah Puteran (Helicteres isora L)
Abstrak

Puteran merupakantanaman dari familia Sterculiaceae yang banyak digunakan secara tradisional sebagai komponen penyusun jamu. tujuan penelitian untuk mendapatkan gambaran tentang profil fitokimia dan senyawa-senyawa logam yang terkandung dalam buah puteran. Penapisan fitokimia dilakukan terhadap ekstrak petroleum eter, etanol dan air.Identifikasi logam dilakukan dengan spektrofotometer serapan atom. Hasil penelitian menunjukkan bahwa buah puteran mengandung minyak atsiri, steroid dan triterpenoid, asam lemak, kumarin, tanin, senyawa pereduksi, falvonoid, poliuronida dan glusida. Dari hasil analisis secara spektrofotometri serapan atom diperoleh bahawa puteran mengandung logam berat Cu, Zn dan Fe, tetapi tidak mengandung Pb, dan Cd. Kandungan Cu = 1,5547 µg/g, Zn = 1,9073 µg/g dan Fe = 15,6396 µg/g.

Kata kunci: Helicteres isora L, spektrofotometri serapan atom

Penulis : YUNAHARA FARIDA , Dr [PDF File] didownload : 1 x

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