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Abstrak :
Pertumbuhan industri penerbangan di Indonesia telah meningkatkan kompetensi antar maskapai penerbangan yang ditandai dengan tarif penerbangan yang semakin murah. Harga tiket pesawat yang murah hams dapat diimbangi dengan kualitas keselamatan dalam penerbangan yang dipengaruhi oleh faktor kondisi pesawat. Untuk memastikan kualitas keselamatan penerbangan tetap terjamin dan harga tetap kompetitif, perusahaan penerbangan mesti menerapkan manajemen pemeliharaan pesawat terbang secara optimal. Untuk mengukur kinerja dari akti vitas pemeliharaan pesawat terbang yang telah dilakukan, tentunya diperiukan suatu metode yang sesuai dengan karakteristik pengukuran kinerja dan juga indikator-indikator pengukuran kinerja yang selaras dengan kebijakan perusahaan. Metode pengukuran kinerja yang digunakan dalam penelitian ini adalah DEA. DEA digunakan karena mampu mempertimbangkan banyak variabel yang mewakili indikator-indikator kinerja akti vitas pemeliharaan pesawat terbang, sehingga dapat diketahui efisiensi aktivitas pemeliharaan terhadap setiap jenis pesawat yang dimiliki perusahaan. Selain itu, DEA juga mampu memberikan hasil sebagai benchmark bagi pesawat dengan aktivitas pemeliharaan yang inefisien. Variabel input dan output yang digunakan dalam model DEA mewakili indikator-indikator kinerja yang disesuaikan dengan kebijakan perusahaan dalam hal manajemen pemeliharaan pesawat terbang. Model DEA yang diusulkan dalam penelitian ini terdiri dari biaya pemeliharaan langsung sebagai variabel input sedangkan variabel output terdiri dari total jam terbang serta jumlah keterlambatan dan pembatalan penerbangan karena alasan teknis. Dari pengukuran kinerja yang dilakukan terhadap enam jenis pesawat dalam kategori rotary wing (R/W), diperoleh hasil yang menunjukkan bahwa hanya aktivitas pemeliharaan terhadap tiga jenis pesawat yang digolongkan efisien yaitu Bell 430, Bolkow NBO-105 dan Puma SA-330J. ......The rapid growth of flight industries in Indonesia have increased the competitive level between airline companies, which is marked with low tariff flight. Cheap flight's cost should be balanced by the quality of safety in flight, which depends on technical condition of the aircraft. To ensure the quality of safety in flight and also to keep the cost remain competitive, airline companies should deploy aircraft maintenance management optimally. To measure the performance of aircraft maintenance activities accurately, it needs a proper method which is suitable with performance measurement characteristic and also the use of performance measurement indicators which is aligned with company's policy. The performance measurement method proposed in this research is Data Envelopment Analysis (DEA). DEA is used in this research because it can consider many variables which represent performance indicators of aircraft maintenance activities, so it can measure the efficiency of the maintenance activities against each type of aircrafts owned by the company. Besides that, DEA is also able to identify benchmark for the type of aircrafts with inefficient maintenance activities. The input and output variables used in the DEA model represent performance indicators which accommodate the company's policy regarding the aircraft maintenance management issues. The DEA model proposed in this research used direct maintenance cost as an input variable, while the output variables consist of total flight hours and technical delay and cancellation. The performance measurement is conducted to six types of aircraft within rotary wing (R/W) category. And the results show that there are three types of aircraft which are considered efficient in terms of aircraft maintenance activities, which are Bell 430, Bolkow NBO-105 and Puma SA-330J.

Abstrak :
Based on the premise that simple problems should always be checked first, this practical, hands-on book/CD-ROM/ worktext package introduces the diagnosis and troubleshooting of automotive engine control systems. It serves users as a single source for information on digital storage oscilloscopes, fuel injection and ignition system diagnoses, five-gas exhaust analysis, emission testing, and more -- with a very technical but easy-to-read and understand presentation. Specific chapter topics cover the diagnostic process; diagnostic trouble code retrieval; technical service bulletins and scan tool data; digital multimeters and digital storage oscilloscopes; advanced starting and charging systems diagnosis; ignition system diagnosis; engine fuels and driveability diagnosis; advanced computer sensor diagnosis; computerized carburetor diagnosis; advanced electronic fuel-injection diagnosis; emission control device diagnosis; five-gas exhaust analysis; engine condition diagnosis; and symptom-based diagnosis.

Abstrak :
Contents: Since AAR was first identified in 1940, it has been a subject dominated by studies of the mineralogy of AAR-susceptible aggregates, the chemistry of the AAR and related reactions and laboratory tests used to diagnose AAR and predict potential future swelling. Civil and structural engineers have found the literature bewildering and difficult to apply to their immediate requirements of assessing the present and future effects of AAR on the strength, safety and serviceability of plain and reinforced concrete structures. There is a need to discuss methods that can be used for in situ non-destructive testing to assess the effects of AAR, and in-service measurements and load-testing to assess the present and future safety of reinforced concrete structures. Methods of repair and rehabilitation and their long-term success also need to be discussed, as do methods of halting or slowing the progress of AAR. At the same time, the fundamentals of AAR need to be explained in terms intelligible to the civil and structural engineer who is primarily trained in structural mechanics and design, but also needs to have a basic understanding of the AAR process and its effects on concrete.

Abstrak :
A fully up-to-date, hands-on guide to electric motorsKeep electric motors running at peak performance! Electric Motor Maintenance and Troubleshooting, Second Edition explains in detail how all types of AC and DC motors work. Essential for anyone who needs to buy, install, troubleshoot, maintain, or repair small to industrial-size electric motors, this practical guide contains new information on three-phase motors along with coverage of the latest test instruments.Drawing on his more than 40 years of experience working with electric motors, expert author Augie Hand provides a wealth of tested procedures to pinpoint and correct any kind of issue. He?ll help you decide whether to replace a motor, take it offline for repair, or repair it in place--decisions that can reduce down time. End-of-chapter questions reinforce the material covered in the book. Quickly and accurately diagnose electric motor problems and find effective solutions with help from this fully updated classic.Electric Motor Maintenance and Troubleshooting, Second Edition covers: Troubleshooting and testing DC machines AC electric motor theory Single-phase motors Three-phase induction motors Troubleshooting less common motors, including synchronous, two-speed one-winding, and multispeed Test instruments and servicesMachine generated contents note: Chapter 1 The DC Machine -- Chapter 2 Troubleshooting and Testing the DC Machine -- Chapter 3 AC Electric Motor Theory -- Chapter 4 The Single-Phase Motor -- Chapter 5 Three-Phase Induction Motor -- Chapter 6 Dual-Voltage Nine-Lead Motor?s Internal Connections -- Chapter 7 Troubleshooting the Nine-Lead Motor -- Chapter 8 Troubleshooting Less Common Motors -- Chapter 9 Test Instruments and Services.