4 research outputs found
Correction to: Process system analysis on oil processing facility and economic viability from oil well‑to‑tank
No full textSummarization: The Original Article was published on 02 June 2021
1 Correction to: SN Applied Sciences (2021) 3:682 https://doi.org/10.1007/s42452-021-04635-z
In this article the second author was incorrectly shown with a second affiliation. The original article has been corrected.Presented on
Process system analysis on oil processing facility and economic viability from oil well-to-tank
No full textHydrocarbon processing from extraction to the final product is an important aspect that needs an optimised technology for consumption-led market growth. This study investigated real data from the oil processing facility and analysed the simulation model for the entire crude oil processing unit based on the process system engineering aspect using Aspen HYSYS. The study mainly emphasises the process optimisation in processing the hydrocarbon for the maximum yield of the product with less energy consumption. The investigation also includes a thorough economic analysis of the processing facility. The datasets for oil properties are obtained from a modern petroleum refinery. The investigation comprises of varying transient conditions, such as well shutdowns using three oil reservoirs (low, intermediate, and heavy oil). The impact of various conditions, including process heating, well shutdown, oil combinations, presence of water on the production, is analysed. The results indicate that the factors involving crude oil processing are significantly affected by the process conditions, such as pressure, volume, and temperature. The vapour recovery unit is integrated with the oil processing model to recover the separator's gas. The optimisation analysis is performed to maximise the liquid recovery with Reid vapour pressure of 7 and minimum water content in oil around 0.5%. Economic analysis provided an overall capital cost of 2.1 x 10(6) for the process configuration. The model results further investigate the constraints that maximise the overall energy consumption of the process and reduce the operational cost.Correction published 11 January 2022, https://doi.org/10.1007/s42452-021-04934-5 WOS:000741367300001In this article the second author was incorrectly shown with a second affiliation. The original article has been corrected.</p
Endovascular Therapy Versus Best Medical Treatment in Posterior Cerebral Artery Stroke: A Systematic Review and Meta-Analysis
No full text\ua9 2026 The Author(s). Brain and Behavior published by Wiley Periodicals LLC.Introduction: Posterior cerebral artery (PCA) stroke, while comprising a smaller proportion of ischemic strokes, often results in significant neurological deficits and poses distinctive therapeutic challenges. This study aims to systematically review and meta-analyze the efficacy and safety of EVT compared with best medical management (BMM) in patients with PCA stroke. Methods: Electronic searches of PubMed, Embase, and Scopus up to July 2025 identified studies comparing EVT and BMM for PCA stroke. Eligible studies included patients with PCA stroke, compared EVT with BMM, and reported at least one outcome of interest. Statistical analyses employed random or fixed-effects models as appropriate; results are presented as odds ratios (OR) or mean differences (MD) with 95% confidence intervals (CI). Results: A total of 12 studies were included, encompassing 39,525 patients (2,540 EVT; 37,075 BMM). EVT was associated with significantly increased odds of early neurological improvement (ENI) (OR 2.11, 95% CI 1.81–2.45), and greater reduction in NIHSS at 24 h (MD –1.30, 95% CI –1.89 to –0.71). There was no significant difference in visual field normalization and no difference in excellent functional outcome. EVT was associated with lower odds of achieving functional independence (mRS 0–2 at 90 days: OR 0.75, 95% CI 0.67–0.85), and significantly increased risks of symptomatic intracranial hemorrhage (OR 2.32, 95% CI 1.66–3.23) and mortality at 90 days (OR 1.86, 95% CI 1.47–2.35). Conclusion: In PCA stroke, endovascular thrombectomy (EVT) confers early neurological recovery but does not improve long-term functional independence and is associated with higher risks of symptomatic hemorrhage and mortality compared with BMM. While EVT may benefit selected patients, these results underscore the need for individualized treatment decisions and prospective randomized trials focused on PCA stroke
Perspectives on the status of the teaching profession in Pakistan: an investigation of trainee teachers’ reasons for choosing the teaching profession, the role of the teacher and problems faced by trainee teachers
No full textThis thesis mainly analyses the trainee teachers’ reasons for choosing the teaching profession, the problems faced by them, perceptions about the role of a teacher and views about the status of the teaching profession in Pakistan. This study considered both trainee teachers and teacher trainers from a Teacher Training Institute, to examine the reasons for choosing the teaching profession in Pakistan. To seek the answer to the research questions of this study, grounded theory procedures are used to explore the views of participants and to provide an in-depth understanding in a particular context. In this research study, the research data are collected from three groups of participants by conducting one-to-one interviews and focus group discussions.
On the basis of the views of research participants, four major research categories are established and under each research category different sub categories are formed. It is reflected in the findings of this study that trainee teachers face many problems and difficulties in the Teacher Training Institute. Data analysis indicates the teaching profession is often associated with low achievers and poor people. It is also considered a respected profession and trainee teachers have a desire to bring positive changes to Pakistani society by adopting the teaching profession. Furthermore, teachers have a significant role in Pakistani society as there are very high expectations of a teacher; and many good qualities, roles and responsibilities are associated with a teacher. The results of this study indicate there is a great influence from the social, cultural and religious norms of Pakistani society on the participants' perceptions and understanding about the different aspects of this study
