Comparison of Advanced Analysis Techniques to Traditional Methods

2002 ◽  
Author(s):  
Erik Jacobsen ◽  
Otto Lynch
Keyword(s):  
Traditional Methods ◽  
Analysis Techniques ◽  
Advanced Analysis

scholarly journals Comparative analysis: to and ni as case particles in Japanese

2021 ◽  
Vol 5 (1) ◽  
pp. 104-114
Author(s):  
Ngurah Indra Pradhana ◽  
I Gede Oeinada
Keyword(s):  
Comparative Analysis ◽  
The Other ◽  
Sentence Structure ◽  
Japanese Case ◽  
Analysis Techniques ◽  
Other Hand ◽  
Case Particles ◽  
Distributional Method ◽  
Advanced Analysis ◽  
The Relationship

This study focuses on particles To and Ni as case particles that function to express the relationship between nouns and predicates in a sentence focusing on the comparative analysis of the two case particles. Based on Tsujimura's opinion, it can be said that in Japanese, case particles are part of a phrase. Case particle is related to the function of the words in the sentence. The method used to analyze the data is Agih method (distributional method). Advanced analysis techniques with substitution techniques were applied in this study. This technique is used to study a case particle in the Japanese sentence structure. This research produces several things that are expected to be helpful to readers. To and Ni case particles can replace each other for the context of sentences that have the following meanings: Pairs Meaning, Translative Meaning, Accusative Meaning, and Ablative Meaning. But on the other hand, To and Ni as case particles can not substitution each other. Especially sentences with the following meanings:  accusative meaning, commitative meaning, partner meaning, citation meaning, alatif meaning, purpose meaning, time markers meaning, diathesis on passive sentences, diathesis on causative sentences, dative meaning, and locative meaning.

Advanced Analysis Techniques for NVH and Sound Quality Improvement

2016 ◽  
Author(s):  
Thomas Deighan ◽  
Graeme Maclean ◽  
Nozomu Kato ◽  
Kiyofumi Sato
Keyword(s):  
Quality Improvement ◽  
Sound Quality ◽  
Analysis Techniques ◽  
Advanced Analysis

Flexible Risers Lifetime Extension: Riser In-Service Monitoring and Advanced Analysis Techniques

2017 ◽  
Author(s):  
Hany Elosta ◽  
Thierry Gavouyere ◽  
Pierrick Garnier
Keyword(s):  
Service Life ◽  
Dynamic Behaviour ◽  
Primary Objective ◽  
Original Design ◽  
Analysis Techniques ◽  
Flexible Pipes ◽  
Integrity Management ◽  
Advanced Analysis ◽  
Flexible Risers ◽  
Lifetime Extension

The demand for the lifetime extension of flexible pipes is increasing due to the need to extend the lifetime of the existing production fields. There have been many challenges with the lifetime extension of flexible pipes after the end of the initial design service life due to the inherent conservatism with the common analysis approach, safety factors and operation beyond the design limits. A lifetime assessment should be performed on flexible risers for re-qualification during the original design life if the design envelope is exceeded or there is a need for lifetime extension. Hence, a systematic approach for lifetime assessment execution is established to determine the integrity level of the flexible risers and define the recommended actions required, such as mitigations, repairs or monitoring to maintain an acceptable risk for the required extended service life based on consistent methodology. The primary objective of this paper is to present a riser integrity management field-proven technology to monitor the riser’s behaviour in-service in addition to the advanced analyses guidelines to form a basis for the lifetime extension of flexible risers. The primary objective for the integrity management is to manage and control the risk of failure by detecting failure at an earlier stage when preventive action can be taken to avoid failure propagation. In addition, it is demonstrated that the primary hot-spots for the dynamic behaviour and fatigue life assessments of the flexible risers are primarily in bend stiffener regions and the touchdown zone (TDZ) due to large tension fluctuations caused by vessel motions and cyclic movement in the TDZ. Therefore, analysis techniques have been developed in two primary areas: advanced bend stiffener modelling using pipe-in-pipe (PIP) to model the sliding friction and the bend stiffener/flexible pipe’s annular space and flexible pipe–seabed interaction modelling using a non-linear seabed model. Therefore, the flexible riser’s lifetime extension assessment will be based on more reliable models that reflect the realistic and dynamic behaviour of the flexible risers. Consequently, these advanced analysis techniques can be used for new designs or lifetime extension of flexible pipes.

scholarly journals Advanced Analysis Techniques Improve Infant Bone and Body Composition Measures by Dual-Energy X-Ray Absorptiometry

2017 ◽  
Vol 181 ◽  
pp. 248-253.e3 ◽  
Author(s):  
John A. Shepherd ◽  
Markus J. Sommer ◽  
Bo Fan ◽  
Cassidy Powers ◽  
Lynda Stranix-Chibanda ◽  
...  
Keyword(s):  
Body Composition ◽  
Dual Energy ◽  
X Ray ◽  
Analysis Techniques ◽  
Advanced Analysis

scholarly journals NEW DIRECTIONS IN DATA ANALYSIS

2001 ◽  
Vol 16 (supp01c) ◽  
pp. 1122-1125 ◽  
Author(s):  
PUSHPALATHA C. BHAT
Keyword(s):  
Data Analysis ◽  
Signal To Noise Ratio ◽  
Theoretical Models ◽  
High Energy ◽  
New Physics ◽  
Parameter Spaces ◽  
Analysis Techniques ◽  
New Directions ◽  
Sophisticated Equipment ◽  
Advanced Analysis

In the next decade, high energy physicists will use very sophisticated equipment to record unprecedented amounts of data in the hope of making major advances in our understanding of particle phenomena. Some of the signals of new physics will be small, and the use of advanced analysis techniques will be crucial for optimizing signal to noise ratio. I will discuss new directions in data analysis and some novel methods that could prove to be particularly valuable for finding evidence of any new physics, for improving precision measurements and for exploring parameter spaces of theoretical models.

scholarly journals Mapping of the electromagnetic environment on the railway: Condition monitoring of signalling assets

2018 ◽  
Vol 234 (3) ◽  
pp. 246-256
Author(s):  
Alexander Knight-Percival ◽  
Christopher Johnson ◽  
Benjamin Richards ◽  
Scott Palmer ◽  
Nicholas Bowring
Keyword(s):  
Condition Monitoring ◽  
Detection System ◽  
Low Cost ◽  
Capital Outlay ◽  
Electromagnetic Environment ◽  
Analysis Techniques ◽  
Track Circuits ◽  
Condition Monitoring Systems ◽  
Advanced Analysis ◽  
Track Circuit

Conventional track circuit condition monitoring systems are fixed at the wayside, with each installation reporting on a single track circuit. In this work, we present a custom-built, sensitive, magnetic field detection system, which can be fitted to the underside of a rail vehicle. With this system installed, some characteristics of an operating track circuit can be monitored from the vehicle whilst it is in motion. By using appropriate analysis techniques, it is possible to identify the signatures of equipment relating to audio frequency track circuits, the topic of this work. Analysing the signatures of track circuit equipment demonstrated that there were clear differences between track circuit assets. By building on other research into the behaviours of failing track circuits, and continuing to conduct this research, the authors believe that it is possible, and beneficial, to perform condition monitoring of track circuits from low-cost equipment mounted on the train. Coupling this with advanced analysis techniques will allow predictive maintenance of track circuits with very little capital outlay.

Post Assessment of Ultrasonic Crack Detection Inline Inspection Data

2008 ◽  
Author(s):  
Lisa Barkdull ◽  
Herbert Willems
Keyword(s):  
Data Analysis ◽  
Crack Detection ◽  
Expert Knowledge ◽  
Effective Area ◽  
Management Program ◽  
Metal Loss ◽  
Analysis Techniques ◽  
Advanced Analysis ◽  
Inspection Data ◽  
Post Assessment

The information supplied from inline inspection data is often used by pipeline operators to make mitigation and/or remediation decisions based on integrity management program requirements. It is common practice to apply industry accepted remaining strength pressure calculations (i.e. B31G, 0.85 dl, effective area) to the data analysis results from an inline inspection survey used for the detection and characterization of metal loss. Similar assessments of data analysis results from an ultrasonic crack detection survey require expert knowledge in the field of fracture mechanics and, just as importantly, require knowledge to understand the limitations of shear wave ultrasonic technology as applied to an inline inspection tool. Traditionally, crack-like and crack-field features have been classified with a maximum depth distributed over the entire length of the feature; crack-field features also have width reported. In an effort to provide further prioritization, techniques such as “longest length” or “interlinked length” [1] have been employed. More recently, an effort has been made to provide a depth profile of the crack-like or crack-field feature using the ultrasonic crack detection data analysis results. This presentation will discuss the advantages of post assessment of ultrasonic crack detection data analysis results to aid in the evaluation of pipeline integrity and discuss the limitations of advanced analysis techniques. Additionally, the potential for new inline inspection ultrasonic technologies which lend themselves to more accurate data analysis techniques will be reviewed.

scholarly journals Improved methods for sizing metal loss in dents for ECA

2020 ◽  
Vol 4 (2) ◽  
pp. 126-136
Author(s):  
Rhett Dotson ◽  
◽  
Fernando Curiel ◽  
Luis Sacramento ◽  
Zach Locks ◽  
...  
Keyword(s):  
Mechanical Damage ◽  
Magnetic Flux Leakage ◽  
Metal Loss ◽  
Element Analysis ◽  
Analysis Techniques ◽  
Significant Challenge ◽  
Advanced Analysis ◽  
Lift Off ◽  
Improved Methods ◽  
Flux Leakage

Dents interacting with metal loss remain as a significant challenge to operators. Existing regulations require that dents with metal loss within high consequence areas be treated as immediate repairs or 60-day conditions, resulting in costly excavations for many operators. At the time when these regulations were written, it was not clear whether inline inspection technologies could discriminate the nature of the metal loss (i.e. corrosion or mechanical damage) or provide accurate sizing. Furthermore, advanced analysis techniques such as finite element analysis were limited, and fitness- forservice evaluations were not common. While the technological hurdles involved with evaluating interacting dent and metal loss features have been overcome, sensor lift-off remains a challenging issue for magnetic flux leakage (MFL) inspection tools, as sizing accuracy degrades at larger lift-off distances. Until recently, the sensor lift-off issue limited the ability to perform fitness- for- service evaluations because the metal loss in dent features could not be confidently sized. This study demonstrates how integrated lift-off sensors can be used to quantify the lift-off as the MFL sensors pass over a dent. This technology integration has allowed the confident application of sizing specifications for many dents with metal loss, thereby permitting robust fitness- for- service evaluations. Several case studies are examined in this paper, demonstrating how the integrated MFL and lift-off technology can serve to reduce excavations while still ensuring safe pipeline operations.

Alignment of Stress Intensification and Flexibility Factors for the B31 Book Sections

2012 ◽  
Author(s):  
David H. Creates ◽  
Daniel P. Côté
Keyword(s):  
Real World ◽  
Research Group ◽  
Visual Representation ◽  
Research Personnel ◽  
The Real ◽  
Analysis Techniques ◽  
Current Information ◽  
General Terms ◽  
Literature Reviews ◽  
Advanced Analysis

It has been recognized for some time that the current B31 Codes are inconsistent in the values they use for stress intensification factors for piping design. ASME has undertaken a project to align the Stress Intensification and Flexibility Factors in the various B31 book sections via the ASME ST-LLC 07-02 Project which is being managed by the Paulin Research Group. The intent is neither to decrease nor to increase conservatism but rather to improve the accuracy of piping analysis as it attempts to model the real world. The supporting research is based on literature reviews, recent testing (within the last 25 years), new testing, advanced analysis techniques and interviews with industry and research personnel. The results are intended to be eventually included in a non-mandatory appendix to ASME B31J. In this paper the scope of the changes and visual representation of some of the current information from the Project is provided to acquaint the piping analysts in general terms. Since flexibility changes are more fundamental to piping analysis, some discussion is provided as to how to incorporate them and some of the possible effects on piping design.

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