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Ditemukan 110 dokumen yang sesuai dengan query
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O`Connell, Jeffrey
New York: Commerce Clearing House, 1971
346.73086 OCO i
Buku Teks  Universitas Indonesia Library
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Eros Sidney Erriyantoro
Abstrak :
[Lapangan ARA yang terletak di lepas pantai Delta Mahakam modern merupakan lapangan penghasil gas yang berproduksi sejak 2008 hingga sekarang. Sesar Utama yang merupakan sesar normal berorientasi NNE-SSW dengan kemiringan relatif ke arah Timur memisahkan Lapangan ARA menjadi dua panel: Panel Barat dan Panel Tengah. Studi konklusif mengenai sifat sekatan sesar utama ini diperlukan dalam optimisasi pemodelan geologi dan kelanjutan pengembangan lapangan. Studi internal telah menggunakan interpretasi horizon dan sesar dari seismik 3D beserta data log sumur sebagai dasar utama pembuatan model struktur, fasies, dan petrofisik Lapangan ARA. Prediksi SGR (shale gouge ratio), permeabilitas batuan zona sesar (Kf), dan fault-rock capillary pressure (FRPc) adalah parameter-parameter utama yang digunakan dalam analisis sifat sekatan sesar. Parameter-parameter tersebut di kalibrasi menggunakan analisis reservoir statik dan dinamik berdasarkan data pengukuran tekanan reservoir. Analisis sekatan Sesar Utama Lapangan ARA menghasilkan batas nilai parameter sekatan untuk zona sesar bersifat tersekat, yaitu SGR > 0.39, Kf < 0.025 mD, dan FRPc > 3.3 bar / 47.8 psi. Variasi kapasitas sekatan sesar dikontrol lebih dominan oleh faktor penyebaran reservoir juxtaposition dibandingkan faktor penyebaran atribut fault throw. Peningkatan perbedaan tekanan reservoir saling kontak antar panel hingga melebihi kapasitas sekatan sesar akibat produksi intensif, menjadi penyebab kebocoran sesar;ARA Field, which is located in offshore area of modern Mahakam Delta, is producing gas since 2008. Main normal fault in the middle of the field separates the field into two panels: West panel and Central Panel. Conclusive study about the sealing behavior of this main fault is needed in order to optimize geology model and future field development. Internal study has used 3D seismic faults and horizons interpretation with its well logs as main input to made structural, facies, and petrophysic model of ARA Field. Shale gouge ratio prediction, fault-rock permeability (Kf), and fault-rock capillary pressure (FRPc) are main analyzed parameters used in this research. Those parameters are then validated with static and dynamic reservoir analysis based on available reservoir pressure data. ARA Field Main Fault seal analysis results cutoff value for each analyzed parameters: SGR > 0.39, Kf < 0.025 mD, and FRPc > 3.3 bar / 47.8 psi. Fault sealing capacity distribution is controlled more dominantly by the reservoir juxtaposition distribution than fault throw attribute. Increase of across fault differential pressure in juxtaposed reservoirs that exceeds the maximum fault seal threshold capability is interpreted as the main cause of fault leak., ARA Field, which is located in offshore area of modern Mahakam Delta, is producing gas since 2008. Main normal fault in the middle of the field separates the field into two panels: West panel and Central Panel. Conclusive study about the sealing behavior of this main fault is needed in order to optimize geology model and future field development. Internal study has used 3D seismic faults and horizons interpretation with its well logs as main input to made structural, facies, and petrophysic model of ARA Field. Shale gouge ratio prediction, fault-rock permeability (Kf), and fault-rock capillary pressure (FRPc) are main analyzed parameters used in this research. Those parameters are then validated with static and dynamic reservoir analysis based on available reservoir pressure data. ARA Field Main Fault seal analysis results cutoff value for each analyzed parameters: SGR > 0.39, Kf < 0.025 mD, and FRPc > 3.3 bar / 47.8 psi. Fault sealing capacity distribution is controlled more dominantly by the reservoir juxtaposition distribution than fault throw attribute. Increase of across fault differential pressure in juxtaposed reservoirs that exceeds the maximum fault seal threshold capability is interpreted as the main cause of fault leak.]
Universitas Indonesia, 2015
T44240
UI - Tesis Membership  Universitas Indonesia Library
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Ian Yosef Matheus Edward
Abstrak :
ABSTRAK
Biasanya dalam jaringan telekomunikasi yang besar, protokol yang digunakan beraneka ragam. Oleh karena itu dibutuhkan suatu mediation device yang memiliki fungsi untuk memetakan protokol yang heterogen menjadi sebuah framework definisi. Framework ini diberi code name Hanuman framework. Pada framework ini diperkenalkan metoda minimalisasi invocation delay dengan menggunakan local interface pada Java Virtual Machine (JVM) container tunggal dan metode bulk read pada pengaksesan atribut entity bean secara berulang. Simulasi menunjukkan perbandingan invocalion delay untuk local interface vs. remote interface adalah 60,44% dan perbandingan waktu transaksi bulk read vs. single read adalah 26,91% untuk pernbacaan 320 atribut.

Gangguan yang terjadi dalam jaringan telekomunikasi dapat mengakibatkan rambatan masalah, oleh karena itu sumber penyebab gangguan harus dapat dideteksi dan dikoreksi. Penyebab gangguan diberi nama problem dan akibat gangguan tersebut akan memberikan alarm yang diberi nama symptom. Dalam penelitian ini diperkenalkan pula metoda inverse symptom dengan pendekatan Humming Distance, yaitu symptom dan inversinya, secara teoritis akan memiliki kemampuan yang sama untuk menentukan problem yang sebenamya, sehingga dapat direduksi. Hasil simulasi menunjukkan metoda ini dapat mereduksi symptom hingga 56,94%. Posisi gangguan yang terjadi di suatu jaringan dapat diketahui dengan menghitung tingkat korelasi antara problem dengan symptom. Dalam disertasi ini digunakan Bayesian Expectation Maximization (BEM), yaitu suatu teknik estimasi likelihood untuk mengatasi informasi yang tidak lengkap, hilang, atau rusak pada saat observasi pembentukan knowledge base. Hasil simulasi dengan sample data 1000 buah dan missing data sekitar 70% menunjukkan bahwa metoda ini masih mampu untuk membentuk knowledge based, dan mencari root of fault.
ABSTRACT
In a large telecommunication network, there are various of protocols that available. Hence there is a need for a mediation device that maps protocols with similar function of purpose to be as a definition homework. The framework?s code name is ?Hanuman? framework. This framework introduces invocation delay minimization method a local interface method on Java Virtual Machine (JVM) single container and bulk reading method in accessing entitiy bean attribute continuously. The simulation shows that the comparison of invocation delay gives local interface vs. Remote interface is 60.44% and the transaction time of bulk read vs. Single read is 26. 91 % for the 320 attributes reading.

A fault in a network can propagate to the other side of the network that generate signyicant symptoms. The source of faults that occur in a communication network should be detected and corrected The cause of these faults is called problem' and those faults will generate alarms which named ?symptom ?. This research also introduces inverse symptom method with Hamming distance approach. This method states that symptoms and their inverses theoretically have the same meaning and therefore they can be reduced. The simulation shows that the reduction of symptoms number due to symptom propagation, and the used inverse symptom method will increase up to 56. 94%. Location of faults that occure in a network can be determinted by calculating the correlation level between problems that cause the problem and symptoms, which is event detected in fault locator device. This dissertation use Bayesian Expectation Maximization (BEM) that is likelihood estimation method to be used for overcome hidden information, missing data, or broken data during observation in knowledge base development. Simulation result with 1000 sample data and around 70% missing data shows that the method is capable to develop knowledge based and to find the root of fault.
2007
D1201
UI - Disertasi Membership  Universitas Indonesia Library
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Rokes, Willis Park
Santa Monica: Cal. Insurors Press , 1971
368.572 ROK n
Buku Teks  Universitas Indonesia Library
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Davis, George H.
Abstrak :
Relates the physical and geometric elegance of geologic structures within the Earth's crust and the ways in which these structures reflect the nature and origin of crystal deformation through time. The main thrust is on applications in regional tectonics, exploration geology, active tectonics and geohydrology. Techniques, experiments, and calculations are described in detail, with the purpose of offering active participation and discovery through laboratory and field work.
Hoboken, New Jersey: Wiley, 2012
551.8 DAV s
Buku Teks  Universitas Indonesia Library
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Enideg Nigussie, Ethiopia
Abstrak :
This book presents design techniques, analysis and implementation of high performance and power efficient, variation tolerant on-chip interconnects. Given the design paradigm shift to multi-core, interconnect-centric designs and the increase in sources of variability and their impact in sub-100nm technologies, this book will be an invaluable reference for anyone concerned with the design of next gThis book presents design techniques, analysis and implementation of high performance and power efficient, variation tolerant on-chip interconnects. Given the design paradigm shift to multi-core, interconnect-centric designs and the increase in sources of variability and their impact in sub-100nm technologies, this book will be an invaluable reference for anyone concerned with the design of next generation, high-performance electronics systems.
New York: [, Springer Science+Business Media], 2012
e20418862
eBooks  Universitas Indonesia Library
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Afzalurrahman Assalam
Abstrak :
Prospek play reservoar dengan konsep sub thrust fault merupakan hal baru di cekungan Kutai. Cekungan Kutai merupakan cekungan sedimen tersier terluas dan terdalam di Indonesia. Cekungan ini masih memiliki banyak potensi reservoar hydrocarbon yang belum ditemukan dan harus terus dieksplorasi. Evaluasi prospek merupakan salah satu tahapan penting dalam eksplorasi hydrocarbon. Analisis sekat patahan dilakukan untuk menguji integritas jebakan pada prospek. Pemetaan geometri persebaran reservoar prospek menggunakan metode analisis spectral decomposisi. Tujuan tesis ini adalah untuk menyelidiki sebaran reservoar beserta keutuhan jebakan dengan menggunakan analisis Spektral Dekomposisi dan dengan menganalisis throw, transmsibility, dan juxtaposisi. Analisis patahan menentukan area leaking dan sealing pada bidang patahan. Dalam penelitian ini juga dilakukan analisis zona frekuensi rendah dimana anomali amplitudo diamati pada frekuensi rendah dan dibandingkan dengan amplitudo pada frekuensi pertengahan dan frekuensi tinggi. Analisis amplitude digunakan untuk membedakan kemungkinan lithologi dan fluida pengisinya. Anomali amplitudo terlihat pada frekuensi rendah dan menghilang pada frekuensi tinggi. Metode dekomposisi spektral yang digunakan adalah Continous Wavelet Transform (CWT) dengan menggunakan wavelet Morlet, Short Term Fourier Transform (STFT) dan Generelized Spectral Decomp (GSD). Hasil proses dekomposisi spektral pada frekuensi rendah (10 Hz) menunjukkan potensi area reservoar baru di kedalaman 1500-2500 ms. Hasil analisis sekat patahan juga memperlihatkan potensial jebakan di bawah sub thrust Patahan 2. Peta dari berbagai proses tersebut kemudian di-overlay untuk melihat peta resiko prospek eksplorasi di daerah penelitian.
The prospect of a play reservoir with the concept of sub thrust fault is new in the Kutai basin. The Kutai Basin is the widest and deepest tertiary sedimentary basin in Indonesia. This basin still has many hydrocarbon reservoir potentials that have not yet been discovered and must be explored. Prospect evaluation is one of the important stages in hydrocarbon exploration. Analysis of fault seal is done to test the unity of the trap to the prospect. Geometry mapping of prospect reservoir distribution is defined by using spectral decomposition analysis method. The purpose of this thesis is to investigate the distribution of reservoirs and trap integrity by using Spectral Decomposition analysis and by analyzing the throw, transmissibility, and juxtaposition. Fault analysis determines the area of leaking and sealing in the fault plane. In this study also carried out low frequency zone analysis where amplitude anomalies is able to be observed at low frequencies and compared with amplitude at mid frequency and high frequency. Amplitude analysis is used to distinguish lithological possibilities and fill fluid. Amplitude anomalies are seen at low frequencies and disappear at high frequencies. The spectral decomposition method used is Continuous Wavelet Transform (CWT) using Morlet wavelets, Short Term Fourier Transform (STFT) and Generelized Spectral Decomp (GSD). The results of the spectral decomposition process at low frequencies (10 Hz) show the potential of the new reservoir area at a depth of 1500-2500 ms. The results of fault seal analysis also show potential trap under sub thrust Fault 2. Maps of the various processes are then overlaid to see the risk map of exploration prospects in the research area.
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2018
T52384
UI - Tesis Membership  Universitas Indonesia Library
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Rinto Hariwijaya
Abstrak :
ABSTRAK
Setiap perusahaan telekomunikasi wajib untuk memberikan kualitas layanan yang baik kepada pelanggan. Standar kualitas layanan ini direpresentasikan oleh Service Level Agreement (SLA). Salah satu cara untuk meningkatkan SLA adalah dengan meminimalkan waktu downtime layanan. Waktu downtime ini disebut dengan Time to Repair (TTR) yang merupakan indikator kinerja dari Fault Management System (FMS). Semakin rendah nilai TTR, maka kinerja FMS pada PT. XYZ semakin baik. Pada penelitian ini akan dibahas mengenai peningkatan kinerja FMS dengan melakukan evaluasi proses bisnis FMS, mengukur nilai probabilitas kegagalan sistem dengan perubahan komposisi komponen, serta mendapatkan proses bisnis yang dapat meningkatkan kinerja FMS. Proses bisnis FMS direpresentasikan ke dalam Standard Operating Procedure (SOP) penanganan gangguan pada jaringan fiber optik. Metode Markov Chain (MC) digunakan untuk mengetahui tingkat kinerja proses bisnis FMS dari open ticket hingga closed ticket. Metode Fault Tree Analysis (FTA) digunakan untuk mengetahui probabilitas kegagalan sistem dari komposisi komponen-komponen dalam FMS. Tujuan metode FTA ini adalah untuk mendapatkan sistem yang memiliki probabilitas kegagalan yang minimum. Sistem yang baru tersebut kemudian diuji kembali kinerjanya dengan menggunakan metode MC. Dengan kedua metode tersebut didapatkan model proses bisnis yang dapat meningkatkan kinerja FMS di PT. XYZ hingga 92,64%.
ABSTRACT
Every telecom company is obliged to provide good quality services to customers. Service quality standards is represented by SLA (Service Level Agreement). One way to improve the SLA is to minimize service downtime. This downtime is called with TTR (Time to Repair) which is an FMS (Fault Management System) performance indicator. The lower TTR values, the better the FMS performance. This research will discuss the performance improvement by evaluating FMS business process, determine the components that lead to system failure, measure the value of a system failure probability with changes in the composition of its components, and obtain business process that can improve FMS performance. FMS business process is represented in SOP of fiber optic fault handling process. MC (Markov Chain) method is used to determine the level of FMS business process performance for each process from open ticket to closed ticket. FTA (Fault Tree Analysis) method is used to determine the probability of system failure for various components composition in the FMS. The purpose of this method is to get a system that has a minimum system failure probability. The new system is then re-tested for its performance using MC method. With both methods we can obtain business process models that can improve the performance of FMS PT. XYZ up to 92.64%.
2014
T42560
UI - Tesis Membership  Universitas Indonesia Library
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Siswo Prayitno
Abstrak :
Tugas Akhir ini rnenyajikan salah satu bentuk fault (kesalahan) - yaitu Bridging Fault - pada rangkaian kombinasional. Berikut teknik-teknik yang sistematis untuk melacak (mendeteksi dan menemukan letak) bridging fault pada rangkaian kombinasional dengan rmenggunakan barisan (sequence) pola-pola test khusus yang menghasilkan respon-respon output yang berbeda.
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1993
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
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Alifia Fatima Noor Firdausi
Abstrak :
Wilayah Penelitian “AF” merupakan salah satu wilayah prospek geotermal di Jawa Timur yang ditandai dengan keberadaan manifestasi permukaan berupa mata air paanas. Penelitian ini bertujuan untuk dapat mengidentifikasi komponen sistem geotermal pada wilayah “AF” berdasarkan integrasi data gaya berat dan penginderaan jauh sebagai data utama, serta analisis geologi dan geokimia sebagai data pendukung. Adapun komponen sistem geotermal yang berhasil diidentifikasi melalui pengolahan data gaya berat dan penginderaan jauh adalah struktur patahan dan indikasi sumber panas. Sumber panas sistem geotermal di wilayah “AF” diduga berasal dari badan magma di bawah Gunung Kawi-Butak yang menunjukkan anomali gravitasi yang rendah. Adapun keberadaan struktur pengontrol mata air panas SG-1 dapat dideteksi melalui FFD secara manual dan otomatis menggunakan filter Sobel, dan diduga berhubungan dengan patahan berdasarkan peta geologi dan yang terdeteksi melalui analisis FHD dan SVD. Dengan adanya dugaan struktur patahan pengontrol manifestasi SG-1, didukung pH fluida yang netral, maka area sekitar manifestasi SG-1 cukup dianggap dapat menjadi area prospek geotermal di wilayah “AF”. ......The “AF” Research Area is one of the geothermal prospect areas in East Java which is characterized by the presence of surface manifestations in the form of hot springs. This study aims to be able to identify the components of the geothermal system in the "AF" area, based on the integration of gravity and remote sensing data as the main data, as well as geological and geochemical analysis as supporting data. The components of the geothermal system that have been identified through the processing of gravity and remote sensing data are fault structures and indications of heat sources. The magma body under Mount Kawi-Butak, which has a low gravity anomaly, is assumed to be the source of heat for the geothermal system in the "AF" area. The existence of the SG-1 hot spring control structure can be detected through manual and automatic FFD using Sobel filter, and is suspected to be related to faults based on geological maps and the one detected by FHD and SVD analysis. With the suspected fault structure controlling the SG-1 manifestation, supported by its neutral pH, the area around the SG-1 manifestation is considered to be a geothermal prospect in the "AF" region.
Depok: Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Indonesia, 2023
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UI - Skripsi Membership  Universitas Indonesia Library
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