bluuebunny/crossref_metadata_2025_split huggingface dataset:
Extension of the Áprily Lajos primary school in Visegrád
Authors: Kovács-Andor Krisztián , Tamás Anna Mária 
Published: April 2023

AbstractVisegrád is one of the smallest towns in Hungary with 1800 inhabitants, which was given the status of town because of its historical importance. Archaeological excavations revealed the remains of the medieval town's former main square and the surrounding buildings. Based on the archeological research the new town center was designed by the A+ Architect Studio and won the Pro Architectura and ICOMOS awards in 2016. Years later the need arose to expand the Áprily Lajos Primary School, which is located next to the site, and to accommodate new classrooms, special training rooms, and music school practice rooms in a new, modern building. The new three-story school building on the street frontage was constructed on the former place of a century-old, dilapidated building and was also designed by A+ Architect Studio.
Transport of heavy metal contaminants in a composite liner under non-isothermal condition
Authors: Jiang W. , Ge S. , Feng C. , Li J. 
Published: April 2023

A mathematical model for the transport of heavy metal contaminants (HMCs) in a triple-layer composite liner with defective geomembrane under the non-isothermal condition is developed in this study, where the GMB/GCL/CCL (geomembrane, geosynthetic clay liner and compacted clay liner) composite liner is adopted as an example and the Langmuir adsorption model is incorporated. The proposed model is solved by the finite difference approach, and its correctness is validated by comparison with the experimental results, an existing analytical solution and another numerical method. Later, the transport behaviours of HMCs are explored with the established model. Compared with the isothermal condition, the non-isothermal condition enlarges the transport flux, but also reduces the concentration of HMCs. The relative concentration based on the Langmuir adsorption model is higher than that based on the linear adsorption model, which is related to the decrease of the retardation factor under the Langmuir adsorption model. Furthermore, the parametric study shows that when the leachate head ht is between 1.0 and 3.0 m, the defined breakthrough time tb increases by about 1.57 a with the increase of GCL thickness lg by 1 cm, and the tb increases by about 9.07 a with the increase of CCL thickness lc by 0.1 m.
The Development of Foodivity Interactive as an Interactive Multimedia to Improve Students’ Understanding of Food Nutrition Topic
Authors: Putri Sulistinayah Suwaka , Widodo Ari , Wihardi Yaya 
Published: April 2023

The pandemic of COVID-19 has affected the education sector. All school access is restricted, transforming education into distance learning. This encourages educators to explore alternative methods for improving students' understanding. Interactive multimedia is a method of learning media that can promote efficiency, motivation, and student understanding of subjects. This research aims to measure the students' understanding of nutrition by developing festivity interactive as interactive multimedia. A pre-experimental one-group pretest-post-test design was adopted. Developing multimedia using the instructional design process ADDIE (Analysis, Design, Develop, Implement, and Evaluate). The research subject was 53 junior high school students in West Java, more precisely in two locations, Sukabumi and Kuningan. The instrument consisted of an expert judgment rubric, a student questionnaire, and a multiple-choice objective test with pretest and post-test. The V Aiken index shows an average validation of 0.8125, indicating that the media is valid and can be used. Students responded positively to the questionnaire by a percentage of 93.01 percent. Based on the analysis, the N-gain value on students' understanding is 0.35. This indicates increased students’ expert judgments in the moderate improvement category between the pre-and post-tests. The hypothesis test establishes that hypothesis H1 is acceptable, showing a significant difference between pre-and post-tests. These results indicate that using Foodivity Interactive as an Interactive Multimedia can enable students’ understanding of nutrition topics.
Tectono‐Stratigraphic Controls on Cenozoic Southeast Asian Carbonates
Authors: Lunt Peter , Woodroof Peter 
Published: April 2023

In Southeast Asia, Cenozoic carbonates commonly were initiated or terminated at times of tectonic change, and they are bound by unconformities. A review of the timing of several of the largest unconformities shows they correlate over wide areas. These unconformities divide the stratigraphic record of Sundaland into episodes, with times of rapid basinal re-adjustment separated by periods of relative stasis. These generalizations are true not only in the successions deposited during the dominantly extensional later Eocene to early Miocene, but also in the often-compressional middle Miocene and younger deposits, in which at least three phases of rapid tectonic and stratigraphic change can be correlated over multiple depocenters. A detailed review of many areas of Southeast Asia using quantitative biostratigraphic methods indicates that tectonism resulted in relative changes in sea level, with no indication that eustasy was an important driving force.
The boundaries between these sedimentary episodes vary in their effect and distribution, depending upon the tectonic cause. As a consequence, there is no uniform subdivision of the stratigraphic record across the region, which precludes a simple Sundaland-wide classification of primary sedimentary sequences. This review concentrates on both event timing and rates of change within and between basins, especially those changes that initiated or terminated carbonate deposition. In addition, some short-lived carbonate buildups that developed during transitional periods are described.
This review provides the beginnings of a new stratigraphic framework for the Cenozoic carbonates and related deposits of Southeast Asia. It requires an inductive analytical methodology, in contrast to the model-driven and deductive approaches that have been applied in recent years. This episodic stratigraphy approach includes integration of large amounts of analytical data, for which the Cenozoic tropical sediments of Southeast Asian basins are particularly well suited.
Tectono‐Stratigraphic Framework of Luconia Carbonates
Authors: Lunt Peter 
Published: April 2023

This paper describes the deposition of Miocene carbonates around Sarawak in a tectono-stratigraphic framework. The onset, termination, and location of the two main carbonate units, the Subis or Lower Cycle II limestones and the Luconia limestone, were controlled by tectonic processes, each beginning with a subsidence event, and terminated by influxes of siliciclastic sediments due to hinterland uplift. New data are presented on the intra–late Miocene decline of Luconia Limestone platforms that is correlated to the uplift of onshore Sarawak (Tinjar Province) and renewed siliciclastic sedimentation, which is dated as being at the same time as major uplift in northern Borneo.
Miocene sedimentation around Sarawak was controlled mostly by extensional tectonics with several rapid subsidence events, which produced transgressive unconformities with mappable focal areas. Away from these focal areas, the contrast in facies, before and after the event, gradually diminishes in a predictable manner. This property of the unconformity is governed by Walther’s Law in that one well or field section cannot be exempt from the mappable trends in facies contrast observed in surrounding wells. This relationship constrains the interpretation of seismic, mapping, and analytical data, as illustrated by an example of a misdated unconformity that previously violated this balance of facies change in space and time.
The tectono-stratigraphic model is a refinement of an existing empirical scheme devised in the area, with units called “Cycles” (Cycles I to VIII). This evidence-based framework is argued to be a genetic description of depositional units that developed in a dynamically evolving depocenter, subject to geographic rotation and relative variations in sea level that were dependent on location. This shifting basin configuration precludes use of a passive margin sequence stratigraphic approach, which assumes and requires a constant proximal to distal sedimentary direction and steady basement subsidence.
Effective Data Visualization and Analytics: Unique Considerations for Large Scale Production Operations
Authors: Stephenson Travis Wyatt 
Published: April 2023

Abstract
There are many exciting and effective uses of digital technology in modern oil and gas operations. From drilling to completions, mid-stream to refining many advances have been made that are increasing compliance, safety, efficiency, and overall profit for many in our industry. One area that has been slower to change is onshore production operations. Many digital solution providers that have experience in the oil and gas industry have fallen short of this segment's needs. Multiple exploration and production (E&P) companies have attempted digital initiatives that have seen limited success. This may be due to not understanding the data needs, consumption requirements, and overall digital and organizational landscape of production operations. This paper attempts to illustrate five key ways that onshore upstream production operations differ from other aspects of oil and gas, and give considerations and guidance to digital solution providers and E&P companies so that the needed digital transformation can truly take hold within this sector.
Devon Energy has made investments in the physical, technological, and human infrastructure necessary to improve its digital capabilities for production operations and all other facets of its business for many years. This paper draws on the observations and lessons from the author's experience working both alongside and within Devon's Production Technology organization.
Optimization of Child Well Hydraulic Fracturing Design: A Bakken Case Study
Authors: Merzoug Ahmed , Ellafi Abdulaziz 
Published: April 2023

Abstract
The combination of hydraulic fracturing and horizontal drilling unlocked a huge energy potential in the US. The unconventional plays have been developed by drilling several horizontal wells and hydraulically fracturing them to enhance the fluid flow. The implementation of these well can be done at the same time, known as Tank Development; however, due to the high capital expenditure and the increased risks associated with such an approach, in addition to the limited number of available drilling rigs. Operators try to hold the lease first by drilling one well, producing it, then extending the lease with additional wells. The challenge is that by producing from these wells, the stress and pore pressure state changes around the first wells (i.e., parent well). These changes directly affect the hydraulic fracture propagation from the offset wells (i.e., child wells). In this work, we build a numerical that represents a real case study. The model was calibrated using data from (a) Microseismic Depletion Delineation, (b) Microseismic events, (c) 10 years of production. Synthetic offset wells were implemented to run a sensitivity analysis on the well design (well spacing, cluster spacing, injection volume) and to understand how to design better wells that have been influenced by production from a primary well. The simulations were run for 10 years. The results show that wider well spacing results in better production, whereas lower cluster spacing had better production. This study allows operators to design better offset wells drilled next to a depleted parent well in the Bakken.
Numerical Simulation of In-Situ CO2 Mineralization in Mafic Basaltic Formations in Southwest Oklahoma
Authors: Al Maqbali Qais , Hussain Sadam , Mask Gene , Xingru Wu 
Published: April 2023

Abstract
Power plants and other industries in Oklahoma produce a huge amount of CO2 emissions that should be mitigated for environmental benefits. One method to mitigate these emissions is permanent CO2 sequestration through mineralization. CO2 can be mineralized in the subsurface if injected into iron- magnesium-rich igneous formations that form carbonate minerals. In Southwest Oklahoma, there are several mafic basaltic formations that can be targeted for CO2 storage. The objective of this study is to quantify carbon storage through mineralization in Southwest Oklahoma.
In this study, we built a carbon sequestration numerical model to simulate the geochemical reactions of injecting CO2 into a saline aquifer. The model includes three main geochemical reactions: CO2 dissolution in water, dissolution of formation minerals, and precipitation of carbonate minerals. The first reaction results in forming carbonic acid that reacts with the formation minerals: anorthite, wollastonite, pyroxene, and olivine, which results in releasing calcium and magnesium ions. The reaction between free ions in the formation of water and dissolved CO2 results in precipitating carbonate minerals: magnesite and calcite. CO2 is injected into the formation for four years and simulated for the next 200 years. The rate of dissolution and precipitation was monitored as a function of time. In addition, the reservoir parameters: porosity, permeability, and reservoir pressure, were analyzed as a function of time and precipitation rate.
The results show that 97% of the injected CO2 is mineralized, and the rest is residually trapped and dissolved in water. Due to the mineralization of CO2 in the form of magnesite, and calcite, the porosity decreased by 5% maximum due to the extra cement in the pore space. The reservoir pressure increases during the injection, but it decreases rapidly after due to the quick CO2 mineralization. Lower reservoir temperature increases the amount of CO2 mineralized due to the higher CO2 solubility in water. In addition, changing the activation energy of mineral reactions leads to a change in the dynamics of CO2 mineralization, but the net of CO2 mineralization changes slightly.
The carbon storage numerical model built for this study considers the effect of the formation water chemistry and rocks mineralogy on the amount of CO2 sequestrated. In addition, it shows that Oklahoma can lead to carbon sequestration in basaltic formations.
High Confidence Gas Lift Valve Optimization Survey Using Full Production Logging and MFC Caliper Data
Authors: Heddleston Duncan Craig 
Published: April 2023

Abstract
A common artificial lift method uses natural gas injected at high pressure from casing into the well and mixes with the produced fluids from the reservoir. The added gas helps increase the production due to lowering the static head pressure and overcome the increase in frictional pressure loss from the large gas quantity injected.
Diagnostic surveys are necessary in order to maintain the gas lift systems, keeping the production optimal and the field operations costs low. The Gas Lift Valve Optimization Surveys (GLVOS) are run to determine if there are any ongoing issues with the completions that may reduce the lift capabilities. These high-definition GLVOS can pin point many issues occurring in the artificial lift systems.
An Investigation into the Mechanisms of Liquid Loading in Small-Diameter Vertical Pipes
Authors: Malin Matthew M. , Todd Burt J. 
Published: April 2023

Abstract
Most gas wells produce either condensed water or liquid hydrocarbons, which over time build up in the wellbore and eventually kill the well – a phenomenon called "liquid loading". Industry operatives have used a criterion based on Stokes's Law (the Turner criterion, 1969) for predicting when liquid loading will begin. However, this approach does not adequately account for multiphase flow effects in the wellbore, causing the Turner criterion to give inconsistent results when applied in the field. In addition, there are anecdotal observations suggesting that Turner's results are more accurate in medium-sized tubing, but become less accurate for diameters smaller than 2.0″.
This research was performed by recreating and observing the conditions leading to liquid loading in a controlled laboratory setting. Two series of experiments were conducted in 2.0″ and 1.0″ inner diameter flow tubes of the Montana Tech Vertical Flow Loop to observe morphology changes as the multiphase flow system transitioned from stable annular mist flow (gas dominant) into churn flow and ultimately slug flow (liquid dominant). The two fluids in the multiphase system were air and water, acting as proxies for produced natural gas and natural gas liquids. The water and air rates were varied to cause the flow to move from stable annular mist flow into churn flow and ultimately slug flow.
The experiments were recorded using slow motion video taken at three locations on the flow loop to observe and quantify changes in flow characteristics over a range of air and water flow rates. The slow-motion video was then visually evaluated to qualitatively describe the flow behavior at the droplet and wave level. These data were then used to define a four-stage flow behavior progression based on the fluid morphology changes leading to liquid loading, and ultimately enables a more accurate prediction of when liquid loading will occur in small diameter pipes.
This research supports previous assertions that Turner's critical velocity model lacks the complex multiphase flow behaviors necessary to accurately predict the onset of liquid loading in small diameter pipes. Unusual slugging behavior was observed in the 1.0″ pipe, suggesting that the effectiveness of small diameter "siphon strings" might be tied to the "liquid sweeping" properties of the liquid slugs.
Automated Completion Surface System: The Path to Fracturing 24/7
Authors: Marvel Tim , Johnson Austin , Douget Phillip , Mast Michael , Dyer John , Kuehn Jordan , Wiesner Brian 
Published: April 2023

Abstract
Primary barriers to fracturing the reservoir 24/7 have been identified as 1) the time between stages (this includes transition time and pressure tests), 2) downtime associated with gate valve maintenance and failures, 3) frac pump maintenance and 4) sand and water logistics.
Following a prescribed roadmap, a system has been developed with new subsystems and processes to eliminate these identified barriers through novel products and automated workflows resulting in fracturing the reservoir more hours per day with the goal of reaching 24 hours a day, 7 days a week (please note the difference between being on a frac site 24/7, which occurs today, and fracturing the reservoir 24/7).
The system eliminates the time between stages with rapid, automated transitions from one stage to the next enabling operators to continuously pump for the duration of the completion. Utilizing automated workflows, interlocks with wireline and frac systems, control systems, and RFID, the system eliminates NPT associated with stage-to-stage transitions. An addition to the system that enables the exchange of pumps during frac operations without stopping the frac has gone through initial field trials, with a second iteration soon to be deployed. Although the overall system does not directly solve logistic issues (i.e. sand and water shortages), the demonstrated consistency achieved using the system enables better planning of resources.
A summary of the system’s accomplishments, some previously disclosed, some new, will be presented. The system has broken multiple pumping records across US basins including hours pumped continuously and stages completed. In addition, the system has over a dozen industry "firsts" that have advanced completion practices, reduced NPT, and eliminated transition time. The paper highlights new additions to the system including the automated lubricator, automated greasing algorithms, and the ability to exchange a pump truck while fracturing. Utilizing the plentiful data provided by the system, specific case histories are documented highlighting the gains in operational efficiency, consistency and safety resulting from the new system.
Comparative Cohort Study Of Paraspinal Muscle Volume Change Between Uniportal Full Endoscopic And Minimamally Invasive Open Posterolateral Transforaminal Lumbar Interbody Fusion
Authors: Kim Hyeun-Sung , WU PANG HUNG , An Jin Woo , Kim Myeonghun , Lee Inkyung , Park Jong Seon , Lee Jun Hyung , Kang Sangsoo , Lee Jeongshik , Yi Yeon Jin , Jang Il-Tae 
Published: April 2023

Abstract
Background Recent literature of uniportal full endoscopic posterolateral transforaminal lumbar interbody fusion demonstrates good clinical and radiological outcomes with minimally invasive benefits potentially preserving paraspinal muscle. There is no literature on paraspinal muscle volume change between the endoscopic and microscopic minimally invasive interbody fusion.Methods We included patients who met the indication criteria for lumbar fusion and underwent either uniportal full endoscopic posterolateral transforaminal lumbar interbody fusion or open transforaminal lumbar interbody fusion. Clinical parameters of visual analog scale and Oswestry disability index were measured at preoperative, postoperative 1 week, 3 months postoperative and final follow up. Magnetic Resonance Imaging measurement of preoperative and postoperative Kjaer grade, right and left psoas muscle mass area, right and left paraspinal muscle mass area were performed.Results 74 levels of Endo-TLIF and 42 patients with minimally invasive Open TLIF were included. There was statistically significant greater improvement in VAS and ODI in Endo-TLIF cohort at 1 week significant improvement of Kjaer grade at postoperative 1 year in Endo-TLIF compared to MIS-TLIF. There is statistically significant improvement in paraspinal muscle mass area in Endo-TLIF (104.83 ± 316.45) mm2 compared to MIS-TLIF (89.88 ± 185.14) mm2Conclusion Uniportal Endoscopic Posterolateral Lumbar Transforaminal Interbody Fusion achieved improved paraspinal and psoas muscle bulk and less fatty infiltration in the operated level as compared to Minimally Invasive Open Transforaminal Lumbar Interbody Fusion while both cohorts achieved equivalent positive clinical outcomes.
A novel probabilistic linguistic two-sided matching decision-making method based on competitive effect
Authors: Zhang Li-Na , Wang Xin-Fan , Zhou Huan , Jia Xiang 
Published: April 2023

Abstract
Owing to the fuzziness and hesitation of people in evaluating process, it is often difficult to give numerical preference information directly. Probabilistic linguistic term sets (PLTSs) is an effective tool to deal with the fuzziness and hesitation of evaluation information, besides, considering the different risk preferences of matching subjects and the competitive relationship between them, a probabilistic linguistic two-sided matching method based on competitive effect is proposed. Firstly, a new distance measure of PLTSs is proposed. Secondly, according to prospect theory construct the comprehensive prospect matrix of matching subjects and further using min-max normalization method convert the comprehensive prospect matrix into satisfaction matrix. Thirdly, a competitive relationship network is proposed to describe the competitive relationship between subjects, and two-stages of competition: macro competition and micro competition are defined. Then, the calculation formula of competitive correlation strength is proposed and transformed into satisfaction of subjects. Based on the maximization of satisfaction, a multi-objective two-sided matching optimization model considering competitive effect is established, the satisfactory matching results are obtained by solving this model. Finally, an example and some comparative studies are presented to demonstrate the effectiveness and practicability of this method.