1,298 research outputs found
Life Extension of Offshore System: A Framework for Optimization of Maintenance Needs and Operation Requirement W.R.T End Life Management Scenario
No full textMaster's thesis in Industrial asset managementIn offshore production installations, numerous platforms, facilities, systems, and equipment’s are approaching or already exceeded their original design life. The industrial product is design for limited timespan and concluded by the phenomenon of decommissioning. When the system approaches that limit, the dominate ageing aggregation affect the performance parameter of the system and resulting in reliability, integrity, safety, and commercial issues. The process of life extension mitigates the effects of ageing mechanism and extend the life or safety limits of the system. The LE process also reduces or diminish the inherit risk possessed by system during their original design life and makes sure the adoption of advance technologies and consideration of new standards and codes.
The current thesis explores the industrial practices for extending the life and safety limits of offshore facilities. The present methodology of the topic is to develop a framework that covers the current market dynamics, operational and maintenance needs of the system, mitigation measures for arising risk factors and technological development of mechanism that generate sustainability and assures financial viability. The approach is to recognize the major asset reliability, integrity, vulnerability, and process safety risks that require detail assessment and evaluation process, to ensure and permit the asset to be operated beyond its design life.
The framework is step forward to figure out some major life extension obstacles by systematic methodology that helps in streamlining the process and provides an improved foundation for pragmatic decision making through four different phases: 1) Detail assessment , history evaluation and decision supportive information collection; 2) Technical assessment and plan for optimization of maintenance needs and operational requirement of the system; 3) Quantifying the uncertainty and prioritizing the risk component or equipment inside of the system; 4) Financial and technical validation of propose model and predictive benchmarking. The developed structured framework provides immense resilience in accommodating a wide and vast spectrum of industry cases
LIS Research in Pakistan: An Analysis of Pakistan Library and Information Science Journal 1998-2007
No full textThis article reports the results of an analysis of literature published in Pakistan Library andInformation Science Journal (PLISJ) during 1998-2007. Various characteristics of literature were analyzed to observe prevailing trends in Library and Information Science (LIS) research in Pakistan. Analysis includes subject covered in articles published in PLISJ; geographic distribution of authors; country of origin of authors; collaboration among authors; contributions to literature on the basis of gender; type of research; language of the article and publication output of PLISJ. Results of the study are compared to previous studies and some recommendations are given for the advancement of LIS research in Pakistan
The Arab Republic of Egypt Government’s Policy during Gamal Abdul Naseer Reign (1952-1962)
No full textThe focus of this research is concern about Egypt’s policy during the reign of Gamal Abdul Naseer (1952-1962 BC). this research aims to explain 1) Explaining Gamal Abdul Naseer policy in Egpyt. 2) Describing the impact of Gamal Abdul Naseer policy on the development of Egypt. The research choose qualitative method by using descriptive analysis on sociological politic approach as a subject which concentrates on power, government, and authority toward its citizens. The result demonstrated Nasser’s urge in order to improve the politic and economic sector in Egypt during his regime. Nasser initiated a system which supported the growth of political development and fiscal cooperation for improving Egypt as a nation. Nasser started the guided democracy system in Egypt. While in economic sector, Nasser’s goal was to develop industrialization as a solution of Egypt economic problems
Spectroscopic (FT-IR, Raman, NMR and UV-vis.) and quantum chemical investigations of (E)-3-[4-(pentyloxy)phenyl]-1-phenylprop-2-en-1-one
No full textGokce, Halil/0000-0003-2258-859X; Naseer, Muhammad Moazzam/0000-0003-2788-2958WOS: 000342254500042In this study, the molecular structure and vibrational and electronic transition spectra and H-1 and C-13 NMR chemical shift values (gas phase and in chloroform solvent), HOMO-LUMO analysis, molecular electrostatic potential (MEP), thermodynamic properties and Mulliken atomic charges of (E)-344-(pentyloxy)phenyl]-1-phenylprop-2-en-1-one molecule, C20H22O2, which has many biological activities have been calculated using the DFT/B3LYP method with 6-311++G(d,p) basis set in the ground state. The obtained results indicate a good harmony among the calculated and the experimental FT-IR, Raman, UV vis. (in methanol solvent) and H-1 and C-13 NMR (in chloroform-d solvent) spectra of the mentioned compound. (C) 2014 Elsevier B.V. All rights reserved.Higher Education Commission of PakistanHigher Education Commission of PakistanThe author AA is grateful to Higher Education Commission of Pakistan for financial support
Capitalizing on risk: how financial flexibility, investment efficiency and institutional ownership shape risk-taking dynamics
No full textIn this study, we test the influence of financial flexibility [FF] on corporate risk-taking [RT], a crucial aspect of firm strategy and performance. In the volatile financial landscape of emerging markets like China, understanding how FF affects risk behavior is essential. Using data from 3571 Chinese listed firms spanning 2014 to 2023, we address this gap by exploring how FF impacts RT and the moderating roles of investment efficiency [INE] and institutional ownership [INO]. Our study employs dynamic panel generalized method of moments [GMM] and a new bias-corrected method of moments to offer robust insights. We find a significant positive correlation between FF and RT. Additionally, IE and INO significantly moderate this relationship, with RT notably amplified when FF exceeds industry- and year-adjusted averages. Interestingly, during exceptional periods, such as the COVID-19 crisis, the impact of FF on RT becomes insignificant. This study offers novel insights into the role of FF, IO and INE in risk management and provides valuable policy recommendations for stakeholders navigating high-risk investments.</p
sj-pdf-1-imr-10.1177_03000605231162444 - Supplemental material for Outcomes of hepaticojejunostomy for post-cholecystectomy bile duct injury
No full textSupplemental material, sj-pdf-1-imr-10.1177_03000605231162444 for Outcomes of hepaticojejunostomy for post-cholecystectomy bile duct injury by Humaid Ahmad, Haseeb Haider Zia, Mohammad Salih, Muhammad Naseer, Nusrat Yar Khan and Abu Bakar Hafeez Bhatti in Journal of International Medical Research</p
sj-docx-1-gph-10.1177_2333794X241240302 – Supplemental material for Enhancing Oral Hygiene in Children With Hearing Impairment: The Impact of Skit Video Interventions -A Randomized Controlled Trial
No full textSupplemental material, sj-docx-1-gph-10.1177_2333794X241240302 for Enhancing Oral Hygiene in Children With Hearing Impairment: The Impact of Skit Video Interventions -A Randomized Controlled Trial by Maria Moin, Muhammad Mohsin Haider, Kulsoom Fatima Rizvi, Rabia Imtiaz, Afsheen Maqsood, Sara Altamash, Naseer Ahmed and Artak Heboyan in Global Pediatric Health</p
sj-doc-1-smo-10.1177_20503121231220794 – Supplemental material for The effectiveness of single antibiotic paste nitrofurantoin V/S double antibiotic paste in alleviation of post-operative pain of patients suffering from symptomatic irreversible pulpitis—A randomized controlled trial
No full textSupplemental material, sj-doc-1-smo-10.1177_20503121231220794 for The effectiveness of single antibiotic paste nitrofurantoin V/S double antibiotic paste in alleviation of post-operative pain of patients suffering from symptomatic irreversible pulpitis—A randomized controlled trial by Hira Abbasi, Muhammad Saqib, Afsheen Maqsood, Rizwan Jouhar, Haroon Rashid, Naseer Ahmed, Mohmed Isaqali Karobari and Artak Heboyan in SAGE Open Medicine</p
Calibration, Compensation, Parameter Estimation, and Uncertainty Quantification for Nanoelectrode Array Biosensors
No full textThis paper presents the use of a statistical approach to estimate physical/electrochemical parameters of impedance spectroscopy experiments performed with a realistic nanoelectrodes array biosensor platform. The Bayesian estimation methodology is based on the combination of nanobiosensor simulations, performed with the ENBIOS tool, with Markov-Chain Monte Carlo (MCMC) analyses. A simple 1D electrode-electrolyte geometry is first considered as a validation test case, allowing the accurate estimation of Stern layer permittivity and salt concentration, as set by a reference analytical model. Then, full 3D analyses of the nanoelectrodes’ array system are performed in order to estimate a number of relevant parameters for measurements in electrolyte. Furthermore, moving to more challenging test cases, size/permittivity of microparticles suspended in electrolyte will also be discussed. This methodology allows for the determination of impedance spectroscopy data parameters, and quantification of parameter uncertainties in these multi-variable detection problems. It is thus a very promising approach in order to improve the precision of biosensor measurement predictions, which are intrinsically affected by many parameters
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