Subsea blowout preventer (BOP): Design, reliability, testing, deployment, and operation and maintenance challenges

The term "Duty Cycle" has been used widely on the daily basis in many industries for various purposes in both technical and marketing/sales communities. People also use this term to design reliability testing, quantify stress acceleration factor (AF), predict product reliability, and conduct field warranty projection. However, there have been tremendous confusion and misunderstanding about this term over the years. The purpose of this paper is to provide clarification and standardize the quantified definitions for various intended product duty cycles. The impact of various duty cycle definitions on product reliability, and their correlation with reliability calculations are also investigated.

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Standard Guidelines for the Design, Installation, and Operation and Maintenance of Stormwater Impoundments

10.1061/9780784414262 ◽

2017 ◽

Author(s):

Keyword(s):

Operation And Maintenance

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Pengaruh Motivasi Kerja Dan Lingkungan Kerja Terhadap Kinerja Karyawan Bappeda Kabupaten Wonosobo Tahun 2013

Jurnal Riset Manajemen Sekolah Tinggi Ilmu Ekonomi Widya Wiwaha Program Magister Manajemen ◽

10.32477/jrm.v1i2.69 ◽

2017 ◽

Vol 1 (2) ◽

pp. 135-147

Author(s):

Ary Sutrischastini ◽

Ratna Setyani

Keyword(s):

Work Environment ◽

Work Motivation ◽

Employee Performance ◽

Linear Regression Analysis ◽

Test Validity ◽

Multiple Linear Regression Analysis ◽

Reliability Testing ◽

Evaluation Influence ◽

Environment Variables ◽

Research Goal

This research goal is to identification and evaluation influence of work motivation and work environment to employee’s performance in BAPPEDA Kabupaten Wonosobo. The object of this research is 37 employees of Badan Perencanaan Pembangunan Kabupaten Wonosobo. And the location of this research is at Badan Perencanaan Pembangunan Kabupaten Wonosobo. The analysis used is test validity, reliability testing, and test the hypothesis, with the help of the computer program SPSS version 17, using multiple linear regression analysis. Based on calculations of data and analysis used, the regression equation is obtained: Y = 11.733 + 0.320 X1 +0.334 X2 + ε, by using the equation regression analytical method can conclude that (X1) take effect positively against employees performance. With t value in amount of 2,219 (bigger than t in table in amount of 1,690) and significance value in amount of 0,33. By applying significance limited value in amount of 0,05, it means, hypothesis that claim if work motivation take effect against employees performance can be accepted. There is a positive and significant correlation between work environment variables (X2) against employees. With t value in amount of 2,219 (bigger than t in table in amount of 1,690) and significance value in amount of 0,33 (smaller than 0,5). Simultaneously, work motivation take effect positively and significantly against employees performance with the F value in amount of 11,562 (bigger than 0.05), then obtained significance value 0.000. It can be concluded that the work motivation and work environment has a positive and significant influence on employee performance in BAPPEDA Kabupaten Wonosobo.

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9. Evaluation and Control of Exposures During Waste-to-Energy Facility Operation and Maintenance

10.3320/1.2765609 ◽

1999 ◽

Cited By ~ 1

Author(s):

M.E. Russell ◽

R. Dunnette

Keyword(s):

Waste To Energy ◽

Operation And Maintenance ◽

Energy Facility ◽

And Control

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A Scale on Attitudes of Preservice Teachers Towards Violence against Women: Validity and Reliability Testing

International Online Journal of Educational Sciences ◽

10.15345/iojes.2017.04.005 ◽

2017 ◽

Author(s):

Gonca Usta ◽

Serkan Keleşoğlu ◽

Yasemin Esen

Keyword(s):

Preservice Teachers ◽

Violence Against Women ◽

Reliability Testing ◽

Validity And Reliability

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Performance and Reliability of a MEMS-based tunable optical filter operating in the 1565 nm-1525 nm wavelength range

MRS Proceedings ◽

10.1557/proc-722-k6.3 ◽

2002 ◽

Vol 722 ◽

Author(s):

T. S. Sriram ◽

B. Strauss ◽

S. Pappas ◽

A. Baliga ◽

A. Jean ◽

...

Keyword(s):

Silicon Nitride ◽

Line Width ◽

Insertion Loss ◽

Optical Filter ◽

Single Mode ◽

Single Mode Fiber ◽

Reliability Testing ◽

Silicon Nitride Membrane ◽

Tunable Optical Filter ◽

Extensive Performance

AbstractThis paper describes the results of extensive performance and reliability characterization of a silicon-based surface micro-machined tunable optical filter. The device comprises a high-finesse Fabry-Perot etalon with one flat and one curved dielectric mirror. The curved mirror is mounted on an electrostatically actuated silicon nitride membrane tethered to the substrate using silicon nitride posts. A voltage applied to the membrane allows the device to be tuned by adjusting the length of the cavity. The device is coupled optically to an input and an output single mode fiber inside a hermetic package. Extensive performance characterization (over operating temperature range) was performed on the packaged device. Parameters characterized included tuning characteristics, insertion loss, filter line-width and side mode suppression ratio. Reliability testing was performed by subjecting the MEMS structure to a very large number of actuations at an elevated temperature both inside the package and on a test board. The MEMS structure was found to be extremely robust, running trillions of actuations without failures. Package level reliability testing conforming to Telcordia standards indicated that key device parameters including insertion loss, filter line-width and tuning characteristics did not change measurably over the duration of the test.

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A Method to Describe the Process of Shaping Operational Effectiveness of Military Aircraft – An Outline

Research Works of Air Force Institute of Technology ◽

10.2478/afit-2013-0004 ◽

2013 ◽

Vol 33 (1) ◽

pp. 45-55

Author(s):

Henryk Tomaszek ◽

Ryszard Kaleta ◽

Mariusz Zieja

Keyword(s):

Support Function ◽

Military Aircraft ◽

Operational Effectiveness ◽

Correct Operation ◽

Operation And Maintenance

Abstract The paper deals with the process of shaping the operational effectiveness of military aircraft under some specific circumstances, i.e. while flying on missions. The term ‘effectiveness’ has been assumed to mean the probability of accomplishing an air mission by one of the aeronautical system’s components, i.e. the aircraft together with its pilot. There is a chance to improve the effectiveness, or make it worse, in subsequent flights, depending on how the maintenance support function. The correct operation and maintenance of the system’s components should provide that the following condition is satisfied: * Pk ≥ P , where Pk - effectiveness in the k-th flight, and P* - the lower demanded limit of effectiveness. The Authors drew their inspiration for this paper from publication [2].

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