A Suitable Model for Assessing the Integrity of Subsea Control Modules SCMs for Re-Use after Decommissioning

2021 ◽  
Author(s):  
Eric Root ◽  
Jesse Andrawus ◽  
Ibiye Iyalla
Keyword(s):  
Oil And Gas ◽  
Relevant Literature ◽  
Assessment Model ◽  
Assessment Process ◽  
Future Research ◽  
Suitable Model ◽  
Integrity Assessment ◽  
Economic Exploitation ◽  
Industry Standards ◽  
Control Modules

Abstract This paper proposes a model for assessing Subsea Control Module (SCM) integrity for re-use after decommissioning. The SCM is one of the most failure-prone components in subsea oil and gas developments, and although a relatively inexpensive component in a Subsea Production System (SPS), the failure of an SCM can require production to be ceased, significantly impacting project economics. The re-use of decommissioned SCMs could improve the economics of subsea oil and gas projects by reducing design and manufacturing lead times, improving production availability, and enabling the economic exploitation of both marginal and mature fields. Insights gained through relevant literature, industry standards, and subsea industry experts led to the development of the Integrity Assessment Model for Decommissioned Subsea Control Modules proposed in this paper. The model is based on an Integrity Assessment process as well as a Risk-Based Compatibility Assessment. Discussions include a background of the SCM and common failures, the economics of SCM re-use, and Applications for the re-use of SCMs. The Integrity Assessment Model is described in detail, as well as the benefits and limitations. Areas of future research in support of subsea equipment re-use are identified, including improvements to reliability databases for subsea equipment, and the creation of a quantitative metric describing subsea equipment integrity.

scholarly journals Research Trend on the Use of IT in Digital Addiction: An Investigation Using a Systematic Literature Review

2020 ◽  
Vol 12 (10) ◽  
pp. 174
Author(s):  
Flourensia Sapty Rahayu ◽  
Lukito Edi Nugroho ◽  
Ridi Ferdiana ◽  
Djoko Budiyanto Setyohadi
Keyword(s):  
Literature Review ◽  
Systematic Literature Review ◽  
Relevant Literature ◽  
Assessment Process ◽  
Research Trend ◽  
Future Research ◽  
Positive Role ◽  
Study Selection ◽  
Negative Role ◽  
Digital Addiction

Despite the negative role of IT in digital addiction development, IT may have a positive role in dealing with digital addiction. The present study undertakes a systematic literature review to explore the state of play and the trend regarding the use of IT in digital addiction research. Using predefined keywords, the Scopus database was searched for relevant literature published from 2017 to 2020. The initial search found 1655 papers. Six stages of study selection were completed using a set of inclusion and exclusion criteria. The study selection and quality assessment process were applied, then 15 papers were selected for further review. The results show that addiction detection using IT is the most researched topic in digital addiction research. The most commonly used IT in the selected studies are AI methods and biosignal recording systems. Various approaches in detection, prevention, and intervention are suggested in the selected studies. The advantages and limitations of each approach are discussed. Based on these results, some future research directions are suggested.

scholarly journals Enhancement of Permit-to-Work System Toward Safety Risk Assessment Supporting by GPS, Face Recognition and IoT: Research on Company XYZ

2020 ◽  
Vol 9 (4) ◽  
pp. 297-303
Keyword(s):  
Risk Assessment ◽  
Face Recognition ◽  
Business Performance ◽  
Human Error ◽  
Best Practice ◽  
Oil And Gas ◽  
Assessment Model ◽  
Assessment Process ◽  
Potential Hazard ◽  
Work System

An increase in the number accident related to the permit to work (PTW) has overwhelming, as in the past, the explosion and fire accident which occurred in the Piper Alpha offshore oil and gas platform in 1988, have killed 167 workers, and also the lack of an issued permit for the actual job, was one of the reasons for the Hickson and Welch accident in 1992 was attributed mainly to human error including deficiencies in the permit to work (PTW) system. Moreover, at company XYZ (2015) because of PTW risk assessment is not adequately conducted onsite, and the technician neglect the potential hazard associated with his work, his experience a lost-time injury (LTI). Therefore, an enhancement of PTW by using GPS, Bio Metric (Face recognition) and IoT to make sure the worker doing PTW properly and make the risk assessment (process with Natural language) onsite before commencing the non-routine job is the essential safety requirement. This research is aim to enhance the existing conventional permit to work system (PTW) into ePTW, (Electronic Permit to Work) information system focus on creating Risk Assessment support by implementing a mobile cloud computing using GPS and Face recognition to verify that the workers are on-premises to do proper PTW and smart lock (IoT) to ensure the isolation done properly, all these features is to help reduce the probability of human errors or non-conformance. PTW enhancement evaluation is using Analytic Maturity Assessment Model to analyze whether the established system in the company or organization is mature enough and valuable of the safety processes and gives positive impacts to the company its overall business performance through safety best practice.

Novel Coronavirus Disease (COVID-19): A Narrative Review Based on Current Status

2020 ◽  
Vol 18 ◽  
Author(s):  
Rina Das ◽  
Dinesh Kumar Mehta ◽  
Meenakshi Dhanawat
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Clinical Symptoms ◽  
Virus Disease ◽  
Relevant Literature ◽  
World Health ◽  
Current Status ◽  
Future Research ◽  
Treatment And Prevention ◽  
First Case ◽  
Novel Coronavirus

Abstract:: A novel virus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), appeared and expanded globally by the end of year in 2019 from Wuhan, China, causing severe acute respiratory syndrome. During its initial stage, the disease was called the novel coronavirus (2019-nCoV). It was named COVID-19 by the World Health Organization (WHO) on 11 February 2020. The WHO declared worldwide the SARS-CoV-2 virus a pandemic on March 2020. On 30 January 2020 the first case of Corona Virus Disease 2019 (COVID-19) was reported in India. Now in current situation the virus is floating in almost every part of the province and rest of the globe. -: On the basis of novel published evidences, we efficiently summarized the reported work with reference to COVID-19 epidemiology, pathogen, clinical symptoms, treatment and prevention. Using several worldwide electronic scientific databases such as Pubmed, Medline, Embase, Science direct, Scopus, etc were utilized for extensive investigation of relevant literature. -: This review is written in the hope of encouraging the people successfully with the key learning points from the underway efforts to perceive and manage SARS-CoV-2, suggesting sailent points for expanding future research.

scholarly journals Forest Quality Dynamic Change and Its Driving Factors Accompanied by Forest Transition in China

Forests ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 733
Author(s):  
Li Gu ◽  
Zhiwen Gong ◽  
Yuankun Bu
Keyword(s):  
Fixed Effects ◽  
Temporal Dynamics ◽  
Spatial Clustering ◽  
Dynamic Change ◽  
Forest Area ◽  
Future Research ◽  
Suitable Model ◽  
Forest Transition ◽  
Significance Level ◽  
Province Level

As ecological and environmental issues have received continuous attention, forest transition has gradually become the frontier and a hot issue, which have implications for biodiversity and ecosystem functioning. In this study, the spatial-temporal dynamics and the spatial determinants of forest quality were investigated using spatial econometric regression models at the province level, which contained 31 provinces, autonomous regions, and municipalities in China. The results showed that forest area, forest volume, forest coverage, and forest quality have greatly increased as of 2018, but uneven forest distribution is an important feature of forest adaptation to the environment. The global Moran’s I value was greater than 0.3, and forest quality of the province level had a positive spatial correlation and exhibited obvious spatial clustering characteristics. In particular, the spatial expansion of forest quality had shown an accelerated concentration. The most suitable model for empirical analysis and interpretation was the Spatial Durbin Model (SDM) with fixed effects. The average annual precipitation and the area ratio of the collective forest were positively correlated with forested quality (significance level 1%). Ultimately, this framework could guide future research, describe actual and potential changes in forest quality associated with forest transitions, and promote management plans that incorporate forest area changes.

Pipeline Corrosion Integrity Management by Direct Assessment

2015 ◽  
Author(s):  
Shailesh Javia
Keyword(s):  
Integrated Approach ◽  
Assessment Process ◽  
Regulatory Requirements ◽  
Integrity Assessment ◽  
Advantages And Disadvantages ◽  
Direct Assessment ◽  
Pipeline Segment ◽  
Integrity Management ◽  
Post Assessment ◽  
Pipeline Corrosion

Integrity management of pipelines is a systematic, comprehensive and integrated approach to proactively counter the threats to pipeline integrity. Pressure testing, in-line inspection and direct assessment methods are used to verify the integrity of a buried pipeline. The Paper Discuses Direct Assessment Methodologies for Hydrocarbon Non Piggable Pipelines. Advantages and Disadvantages of Direct Assessment methodology and DA Protocols. The DA process accomplishes this by utilizing and integrating condition monitoring, effective mitigation, meticulous documentation and timely structured reporting processes. DA is a structured, iterative integrity assessment process through which an operator may be able to assess and evaluate the integrity of a pipeline segment. TIME DEPENDENT THREATS INEVITABLY LED TO NUMEROUS FAILURES WITH A COMMON DEFINING MECHANISM OR SOURCE – CORROSION. This Paper will focus on internal, external and stress corrosion cracking direct assessment along with pre and post assessment, quality assurance, data analysis and integration, and remediation and mitigation activities. This paper will discuss some of the regulatory requirements for Pipeline Integrity Management System.

Private ethical fund investors across countries and time: a survey-based review

2015 ◽  
Vol 7 (4) ◽  
pp. 379-411 ◽  
Author(s):  
Anett Wins ◽  
Bernhard Zwergel
Keyword(s):  
Keyword Search ◽  
Relevant Literature ◽  
Future Research ◽  
Socially Responsible ◽  
Screening Criteria ◽  
Content Type ◽  
Responsible Investment ◽  
Private Investors ◽  
Ethical Funds ◽  
Fund Portfolio

Purpose – This paper aims to provide an overview of the literature to point out similarities and differences among private ethical investors across countries and time. Over the past three decades, many surveys have been conducted to advance the understanding of the demographic characteristics, motivation and morals of private ethical investors across countries and time. To date, the survey-based evidence on private investors into ethical funds is geographically rather segmented, and the research questions are fairly diverse. This permits only very temporally or regionally selective conclusions. Thereby, the authors identify interesting topics for future research. Design/methodology/approach – To identify the relevant literature for our review, the authors carried out a structured Boolean keyword search using major library services and databases. Findings – When questions about negative screening criteria are presented in a direct investment context, the consensus of private ethical investors “worldwide” (on average) is that social screening issues are most important, followed by ecological and moral topics. The percentage of ethical funds in the fund portfolio of the average private ethical investor in Europe seems to increase when the investor exhibits high degrees of pro-social attitudes and perceived consumer effectiveness. European private ethical investors are of the opinion that ethical funds perform worse but are less risky than conventional funds. Practical implications – The authors make suggestions on how investment companies should design their funds so that they can attract more socially responsible investors. Originality/value – The paper is of particular value because it focuses on private investors in the fast growing retail market of socially responsible investment funds.

The Failure Window Method and Its Application in Pipeline Burst

2017 ◽  
Vol 139 (5) ◽  
Author(s):  
Zhanfeng Chen ◽  
Hao Ye ◽  
Sunting Yan ◽  
Xiaoli Shen ◽  
Zhijiang Jin
Keyword(s):  
Internal Pressure ◽  
Maximum Stress ◽  
Oil And Gas ◽  
Maximum Shear Stress ◽  
High Accuracy ◽  
Burst Pressure ◽  
Empirical Equations ◽  
Integrity Assessment ◽  
Wall Thinning ◽  
Window Method

Accurate prediction of the burst pressure is indispensible for the engineering design and integrity assessment of the oil and gas pipelines. A plenty of analytical and empirical equations have been proposed to predict the burst pressures of the pipelines; however, it is difficult to accurately predict the burst pressures and evaluate the accuracy of these equations. In this paper, a failure window method was presented to predict the burst pressure of the pipes. First, the security of the steel pipelines under the internal pressure can be assessed. And then the accuracy of the previous analytical and empirical equations can also be generally evaluated. Finally, the effect of the wall thinning of the pipes on the failure window was systemically investigated. The results indicate that it is extremely formidable to establish an equation to predict the burst pressure with a high accuracy and a broad application, while it is feasible to create a failure window to determine the range of the dangerous internal pressure. Calculations reveal that some predictions of the burst pressure equations like Faupel, Soderberg, Maximum stress, and Nadai (1) are overestimated to some extent; some like ASME, maximum shear stress, Turner, Klever and Zhu–Leis and Baily–Nadai (2) basically reliable; the rest like API and Nadai (3) slightly conservative. With the wall thinning of the steel pipelines, the failure window is gradually lowered and narrowed.

scholarly journals The Genus Plagiothecium Schimp. (Plagiotheciaceae, Bryophyta) in Eurasia: An Annotated Checklist with Distribution and Ecological Data

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 868
Author(s):  
Grzegorz J. Wolski ◽  
Samar Nour-El-Deen ◽  
Alicja Cienkowska ◽  
Daniel Bożyk ◽  
Wagieh El-Saadawi
Keyword(s):  
Relevant Literature ◽  
Single Species ◽  
Future Research ◽  
Ecological Data ◽  
Widespread Species ◽  
Entire Study ◽  
Distribution Maps ◽  
Sectional Classification ◽  
Pleurocarpous Moss ◽  
Annotated Checklist

An annotated checklist of the pleurocarpous moss genus Plagiothecium in Eurasia is presented for the first time based on a thorough review of the literature. Data have been compiled from previous relevant works conducted on the genus over more than 70 years and published up to the end of June 2020 for 107 Eurasian countries (and islands). Sectional classification is based on molecular phylogeny of the genus published recently. A total of 41 taxa are reported, including 29 species and 12 infraspecific taxa (nine varieties and three forms) belonging to eight sections. The highest numbers of taxa were found in China (20 taxa), the Russian Federation (20 taxa) and Japan (18 taxa), while the smallest numbers of taxa were recorded in the Middle East, Central Asia and the islands area. Not a single species of Plagiothecium was recorded in 26 regions, whereas P. denticulatum, P. nemorale and P. cavifolium turned out to be the most widespread species in the entire study area. They were recorded in most of the surveyed countries and islands. For each accepted taxon, information on relevant literature, synonyms, distribution within Eurasia and globally are provided. Comments on each taxon, ecological preferences, and notes on doubtful records are also included. Additionally, distribution maps for each recognised taxon are supplied. This checklist can enlighten and foster a better understanding of the distribution, diversity, and ecology of Plagiothecium in Eurasia and provides an incentive for future research on the genus.

The Roles of Knowledge Management and Cooperation in Determining Company Innovation Capability: A Literature Review

10.28945/4739 ◽  
2021 ◽  
Vol 16 ◽  
pp. 125-145
Author(s):  
Elan N Purwanto ◽  
Ernie T Sule ◽  
Imas Soemaryani ◽  
Yudi Azis
Keyword(s):  
Knowledge Management ◽  
Theoretical Model ◽  
Literature Review ◽  
Data Extraction ◽  
Relevant Literature ◽  
Future Research ◽  
Online Research ◽  
Innovation Capability ◽  
Research Model ◽  
Business Practitioners

Aim/Purpose: The aim of this study is to develop a research model derived from relevant literature to guide empirical efforts. Background: Companies struggle to innovate, which is essential for improving their performance, surviving in competition, and growing. A number of studies have discussed company innovation capability, stating that innovation capability is influenced by several variables such as cooperation and knowledge management. Therefore, further research is necessary to identify factors playing a role in enhancing innovation capability. Methodology: This study is based on systematic literature review. The stages are: (1) research scope review, (2) comprehensive online research, (3) journal quality assessment, (4) data extraction from journals, (5) journal synthesis, and (6) comprehensive report. The online research used Google Scholar database, by browsing titles, abstracts, and keywords to locate empirical research studies in peer-reviewed journals published in 2010-2020. Furthermore, 62 related articles were found, of which 38 articles were excluded from further analysis and 24 articles were selected because they were more related to the topic. Contribution: The results of this study enrich the research in the field of knowledge management, cooperation, and innovation capability by developing a conceptual framework of innovation capability. The proposed theoretical model may be fundamental in addressing the need of a research model to guide further empirical efforts. Findings: This study provides a research model derived from systematically reviewing relevant literature. The proposed theoretical model was done by incorporating the aspects of knowledge management, cooperation, and innovation capability. The model shows that knowledge management and cooperation are essential aspects of innovation capability. Furthermore, this study also provides the dimensions and sub dimensions of each variable that was established after synthesizing the literature review. Recommendations for Practitioners: Business practitioners can use the identified predictors of innovation capability and the dimensions of each variable to explore their company’s innovation capability. They can also take the relevant variables into consideration when making policies regarding innovation. Recommendation for Researchers: The theoretical model proposed in this study needs validation with further empirical investigation. Impact on Society: Readers of this paper can obtain an understanding that knowledge management and cooperation are essential aspects to consider in enhancing innovation capability. Future Research: Future studies should explore other dimensions of knowledge management and cooperation through alternative approaches and perspectives.

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