bluuebunny/crossref_metadata_2025_split huggingface dataset:
Defining dispersion in dark oil medium
Authors: Pivovarova Nadezhda Anatolievna , Akishina Ekaterina Sergeevna 
Published: February 2023

Properties of oil and petroleum products largely depend on the fractional and chemical composition, on the quantitative content of different components in them, their qualitative characteristics, as well as on the dispersed composition of the oil system. Examples of oil dispersed systems are given in accordance with their classification. The dispersed phase and its structure are considered on the basis of classical concepts as a complex structural unit consisting of a nuclear and layers surrounding it. The dispersion degree is defined by the forces of intermolecular interaction between the nucleus and layers of a complex structural unit, as well as between the layers. A great contribution to forming and stability of a complex structural unit is made by bonds based on spin-spin and spin-polarized interactions. The diamagnetic components of the system form a dispersion environment. The greater a dispersion, the stronger the molecular kinetic factors become, the more intensive the diffusion processes are, the sedimentation stability increases, and the physico-chemical processes at the phase boundary accelerate. Therefore, dispersion is one of the most important factors of oil dispersed systems that determine their properties (viscosity, flash and solidification temperatures, fractional composition, density). The study of changes in the dispersion of the system under various kinds of influences, determined by the size of the average diameter of the particles of the dispersed phase, makes it possible to identify the most favorable conditions for the implementation of technological processes during transportation, storage, processing, and ensuring environmental safety. The proposed photoelectrocolorimetric method for determining
a mean diameter of particles of the dispersed phase of dark and viscous petroleum products differs from the well-known method in that it is carried out without diluting the sample, which could distort its dispersed composition. Besides, the sample optical density is determined in a thin fixed layer of a petroleum product due to a hard insert between the slides. The analysis methodology is described including a description of the device, a sequence of preparation and measurement, as well as processing of the results obtained.
The Role of Certain Polymorphic Variants in Genes, Previously Associated with Blood Pressure Values, with Reference to the Risk of Development of Coronary Artery Disease
Authors: Yaneva-Sirakova T. , Kaneva R. , Tzveova R. , Bozhilova R. , Popov I. , Shumkova M. , Hristova I. , Vassilev D. 
Published: February 2023

Abstract
The aim of the study was to analyze the effect of polymorphic variants previously associated with arterial hypertension (AH) in Genome Wide Association Studies (GWASs) in/next to genes and locuses CYP7A1 and PLEKHA7 on the development of coronary artery disease (CAD) in Bulgarian patients. A hundred and nine consecutive patients with angiographically documented CAD were studied. The genotyping was done with 7900 HT Fast Real-Time PCR (Applied Biosystems) with TaqMan® method. The control group consisted of 192 healthy population controls, selected from the bio- bank of the Molecular Medicine Center. SPSS and PLINK were used for the statistical analysis with level of significance < 0.05 and confidence interval 95%. The mean age of the studied patients was 63.71 ± 9.35 years; 35 (35%) females. Previous myocardial infarction (MI) had 38(38%); one-vessel – 39 (39%); two-vessel – 28 (28%); three-vessel disease – 34 (34%); 43 (43%) were with diabetes mellitus; 92 (92%) – with arterial hypertension (AH); 77 (77%) – with dyslipidemia; 42 (42%) were smokers; 25 (25%) were obese. We did not find any significant association between CAD and poly- morphism rs11191548 near CYP17A1 and only a tendency for genotype of rs381815 in PLEKHA7 (p = 0.06; OR 0.64; CI 0.40-1.02 for CAD) under dominant model. This is of practical importance both for studying the genetic aspects of CAD in the future and for enlargement of the current database.
Double isochromosome X, A rare cytogenetic variant of turner syndrome: A case report and a review of the literature
Authors: Zerrouki K. , Babakhouya A. , Tajir M. 
Published: February 2023

Abstract
Turner Syndrome (TS) is a genetic disorder caused by total or partial loss of an X chromosome. The isochromosome X (i(X)) is a known variant of TS, however, double i(X) is a very rare variant, reported very few times in the literature. We report on a rare case of TS with double i(X). This is an 11-year-old female patient , addressed to the medical genetics consultation for short stature and facial features suggestive of TS. We performed a constitutional postnatal karyotype from a peripheral blood sample, with lymphocyte culture, and an R band analysis, performed on 70 metaphases. Metaphases analysis in our patient identified the presence of three cell populations: 45,X[22]/46,X,i(X)(q10)[30]/47,X,i(X)(q10),i(X)(q10) [18]. The first has total chromosome X monosomy, the second with a normal X chromosome and one isochromosome of the long arm of the other X chromosome and the third with a normal X chromosome and two isochromosomes of the long arm of the X chromosome. A control cell culture was performed from a second blood sample of the patient and confirmed the abnormality. This paper will discuss this case in comparison with other rare cases described, as well as the formation of the double isochromosome, based on the literature.
Satisfaction with Retirement: A Qualitative Comparative Analysis with Social Network Analysis
Authors: Ruiz Francisca Ortiz , Olsen Wendy 
Published: February 2023

Abstract
Satisfaction with any aspect of life is not easy to defined, and sometimes, it is still a topic of discussion. That is especially relevant for more excluded populations like older people. This research looked into how relevant the social support networks (SSNs) of older people are for their satisfaction with retirement, specifically in the Chilean context. It will identify some sufficient and necessary conditions for older people to be satisfied with retirement. This research focuses on 30 life histories of older people in Santiago, Chile. They were asked about their histories and SSNs. The analysis applied used a Qualitative Comparative Analysis (QCA) with conditions from the Social Network Analysis (SNA). The results identify sufficient and necessary conditions to achieve satisfaction with retirement. It is highlighted some of the dimensions of SSNs and their reciprocities as relevant conditions for satisfaction with retirement.
PENINGKATAN PEMAHAMAN HUKUM WARIS ISLAM BAGI ANGGOTA RANTING AISYIYAH CIRENDEU CIPUTAT TIMUR TANGERANG SELATAN
Authors: Bariyah Oneng Nurul , Rohmah Siti , Nuraeni Heni Ani , Fadil Ahmad 
Published: February 2023

Program Pengabdian Masyarakat ini berdasar dari adanya sebuah permasalahan, yaitu adanya faham yang salah tentang sistem pembagian hukum waris dalam perspektif sebagian warga ‘Aisyiyah Ranting Cirendeu seperti ahli waris terbatas pada keluarga inti yang meliputi isteri, suami, dan anak. Pemahaman tersebut bertentangan dengan petunjuk Alquran yang tertuang dalam Alquran surat al-Nisa ayat 11, 12, dan 176. Berdasarkan beberapa hal tersebut, warga Aisyiyah khususnya ranting Cirendeu perlu meningkatkan pengetahuan mereka tentang hukum waris Islam yang sesuai dengan petunjuk Alquran dan Sunnah Rasulullah saw. Pengabdian masyarakat ini bertujuan: 1) memperkaya wawasan warga ‘Aisyiyah Ranting Cirendeu Ciputat Timur tentang hukum waris Islam 2) memperkaya wawasan warga ‘Aisyiyah Ranting Cirendeu Ciputat Timur tentang teknik pembagian harta warisan menurut ajaran Islam sehingga terbangun kesadaran utnuk mengamalkan ajaran Islam khsuusnya terkait hukum kewarsian Islam di lingkungannya. Metode pelaksanaan pengabdian menngunakan metode ceramah dan demontrasi yang dilaksanakan secara tatap muka. Kegiatan ini dibagi menjadi tiga tahapan; yaitu pendekatan terhadap mitra, partisipasi mitra, dan evaluasi dan keberlanjutan program pasca pelaksanaan pengabdian. Adapun hasil dari kegiatan pengabdian ini adalah adannya peningkatan pengetahuan warga ‘Aisyiyah yang menjadi peserta kegiatan sosialisasi hukum waris Islam setelah adanya evaluasi kegiatan. Selain itu, para peserta menyadari pentingnya pengetahuan hukum waris yang perlu ditularkan kepada warga lainnya dan diamalkan dalam kehidupan.
Well-being among Nursing Students: Relationship between Lifestyle Behaviours, Sleep Quality and Resilience
Authors: Kundayi Ravi Ramya , Mona Gamal  
Published: February 2023

Well-being is considered a positive state influenced by one’s mental, physical, emotional and cultural factors. High-level well-being enables a person to live at full potential. In this study, we investigated the level of well-being and its associated factors among nursing students studying at a selected university in Ras Al Khaimah in the United Arab Emirates. A quantitative descriptive study was conducted among undergraduate nursing students enrolled in this university. A convenient sampling technique was used to recruit the participants. Measures included the WHO-5 well-being index, a lifestyle behaviour questionnaire, the Pittsburgh sleep quality index and a brief resilience scale. Nearly two-thirds (65.4%) of the study participants reported good well-being, whereas the remaining 34.6% reported low well-being. In general, better well-being was found to be associated with moderate or vigorous physical activity for at least 30 minutes three or more times a week (p < 0.05), and a habit of skipping breakfast (p < 0.05). It was also found to be associated with better subjective sleep quality (p < 0.001), less sleep latency (p < 0.01), fewer sleep disturbances (p < 0.001), and less daytime dysfunction (p < 0.001). These results support the need to improve the well-being of nursing students. We recommend interventions that promote physical activity and sleep quality to improve the well-being of undergraduate nursing students.
Optimized NGL Control System with Actual Flow and Set Point Tracking Feature
Authors: Chishti Khurram 
Published: February 2023

AbstractConsistent ethane recovery in the Natural Gas Liquefication (NGL) process is critical to achieve financial objectives of the NGL processing facility. Joule-Thompson (JT) effect in combination with various processes such as cascade-refrigeration or Residue-Split-Vapor (RSV) are being used in the industry to maximize the ethane recovery from the feed gas varying in the degree of 75% to more than 95%. Identifying the transient conditions and ensuring precise and accurate control throughout is of utmost importance. The transient conditions are categorized as start-up or a scheduled shutdown of the plant, and an upset of the plant. Any of these transient conditions may drive the plant in unstable state which would impact the ethane recovery drastically. This paper discusses a control algorithm that was developed to identify the transient states and to provide an accurate and stabilized control to keep the recovery above the target threshold. During the startup, a typical NGL plant will start its operation in JT mode and will slowly transition into a cooling mode by introducing turboexpander for example. During the shutdown mode, the plant slowly returns to JT mode by shutting down the turboexpanders. During the upset, the turboexpanders can accidently trip to force the plant in an unstable state. In transient states, an accurate control is required to precisely transfer the feed gas volume from turboexpanders to JT equipment or vice versa in a timely manner to minimize the impact such as loss of production or total plant trip. The proposed control algorithm predicts an upset in advance, captures the actual flow of the feed gas passing through the equipment prior to an upset and transforms the captured flow into an equivalent percentage opening of the backup equipment (in case of JT mode, the percentage opening of the JT valve and in case of turboexpander mode, the percentage opening of the Inlet Guided Vanes (IGVs)) to ensure the plant mass balance is maintained. The set point tracking feature of the algorithm ensures that when the normal Proportional Integral Derivative (PID) control is resumed the transfer of control is bump less to avoid any overshooting or undershooting of the overall plant pressure.
Accelerated Methanogenesis for the Conversion of Biomethane from Carbon Dioxide and Biohydrogen at Hyperthermophilic Condition
Authors: Chai Ching Hsia Ivy , Abdul Wahab Mohd Firdaus , Abdul Jalil Nur Kamilah , Goodman Abigail Harriet , Lahuri Hazratul Mumtaz , Md Shah Sahriza Salwani 
Published: February 2023

AbstractMethanogenesis is the conversion of carbon dioxide (CO2) to methane (CH4) using microbes. In the context CO2 utilization, methanogenesis process in the utilizing native microbes from a particular reservoir can be a very slow process without any external intervention. To accelerate the conversion rate and methane yield, this study investigates the use of agriculture by-product such as palm oil mill effluent (POME) as substrates as well as potential microbial isolates that can produce biohydrogen at high temperatures. This paper covers the three laboratory assessments of microbes from anaerobic sludge from a local palm oil mill, use of POME to augment the microbial growth, and physicochemical manipulation to identify key parameters that increases CH4 yield and rate: i) biohydrogen production ii) biomethane production, and iii) syntrophic reactions. All experiments are conducted at 70°C which is considered a hyperthermophilic condition for many microbes. Biohydrogen production achieved with highest H2 production of 66.00 (mL/Lmedium). For biomethane production, the highest production rate achieved was 0.0768 CH4 µmol/mL/day which 10,000X higher than 19.6 pmol/mL/day used as a benchmark. Syntrophic reaction with both types of hydrogen-producing and methanogen in the same reactor, and pure H2 and CO2 supplemented externally was able to achieve the highest methane production of 10.095 µmol/mL and 2.524 µmol/ml/day. Methane production rate is 2.5 times faster than without external gasses being introduced. Introduction of external CO2 to the syntrophic reaction is to mimic actual carbon injection and storage in the reservoir. Our paper shows that stimulation of microbes using POME as substrates and H2/CO2 supplementation are important in accelerating the rate of methane production and yield. Future work will focus on optimizing the gas ratio, pH of growth media, and performing syntrophic reaction in porous media to emulate conditions of a reservoir.
Fast-Drill Method as a Risk-Based Approach to Reduce Deepwater Exploratory Drilling Cost
Authors: Runtuwene Michael , Ang Chee Yong , De Boehmler Guy , Kumar Ashutosh , Lee Denise , Dulam Mel 
Published: February 2023

Abstract
Discovering new oil and gas resources is the key for any energy companies to sustain or improve the hydrocarbon production. However, it is evident that most Exploration & Production (E&P) companies have reduced their exploration investment in recent years and the downturns have contributed to the strain. Therefore, it is critical to choose the strategy and allocate budgets efficiently to make sure the best possible return in the exploration sector.
Recently, the Operator restarted the exploration campaign in the deepwater territories of Brunei water, and it was key to leverage the learning curve from the Operator's global experience where essential strategies for cost reduction have been effectively implemented. The Operator has extensive deepwater drilling experience in Asia Pacific region as well as globally, where operational best practices are being replicated in the effort to standardize the Operator's deepwater activities. The Fast-Drill method in the riserless drilling section was identified to be a valuable replication in this part of the globe as it has proven to add values in other regions.
The Operator has long concluded that the use of weighted mud (dynamic kill drilling, DKD) in the riserless section contributes considerably to the high cost of subsea exploration drilling. In anticipation of the shallow flow event and to mitigate subsurface uncertainties, the usual Pump-and-Dump method necessitates a substantial contingency volume of DKD mud. To reduce the volume of DKD mud required, the Fast-Drill method was employed instead of the Pump-and-Dump approach. Fast-Drill refers to the method of drilling riserless with seawater at high penetration rates where cutting loadings that are created by fast penetration rates results in the required equivalent circulating density (ECD). The Fast-Drill method has been implemented in two wells in Brunei and the results have been favorable. Among the benefits found were reduced rig time, significantly lower mud costs and the avoidance of gumbo. Borehole stability was maintained, and the hole was cased-off without difficulty.
This paper describes the requirements set at the planning stage, to ensure that the project was competitively scoped and that it adhered to the Operator's global standard deepwater operations practices, following a franchise concept. It outlines the challenges encountered and how they were addressed to successfully implement the Fast-Drill approach. Additionally, this paper examines the advantages of this method and illustrates how thorough planning and risk assessment were critical for a safe and efficient execution.
Thailand’s First Green Power Technology Playground in Energy Transition Era for Net Zero Target
Authors: Pechvijitra Pimpisa , Thamma Thammasak , Jaiyen Jutiporn , Onsuratoom Surakerk , Rewlertsirikul Piyanee , Anantasate Sumeth 
Published: February 2023

Abstract
"Green Power Technology Playground" (GPTP) is the first demonstration project in Thailand where the whole integration system for green power technologies, ecosystem, and Internet of Things network are combined. This project is located at Eastern Economic Corridor of Innovation area (EECi) in Rayong, Thailand. The prominent concept of GPTP is Plug & Play where anyone is welcome to play, learn, and become familiar with new green power technology applications. Thus, every equipment is designed as a small, movable size in a container. It can be easily removed and installed, allowing us to learn and develop innovation for a green power ecosystem.
GPTP is designed to establish the ecosystem of green energy technology. Thus, it is split into seven sections as follows:Green Power Supply: Solar roads and novel generations of solar PVs have been built and provisional areas for future renewable sources are provided.Green Power Storage and Conversion: Advanced, innovative types of battery and electrolyzer are located and green electricity is stored in batteries for the further use in nearby buildings and converted into hydrogen for other applications by the electrolyzers.Green Power Applications: Cutting-edge applications for potential commercialization to new business are provided.H2 Storage: Hydrogen is stored for the further use.Green Backup Power: New generations of fuel cells are provided.H2 Utilization and Carbon Capture Utilization: The plug and play modules for ammonia and urea production and CO2 refrigeration packages are assembled.Smart Energy Management System: By using Internet of Things, all elements in the playground are controlled via cloud. Thus, any related party can access information and monitor the system from anywhere and anytime.
As PTTEP (Main Stakeholder) intends to build innovations for new energy technologies and scale them up for commercialization, the investment in a demonstration project is needed. Investing in a large scale, not know-how, less matured green power technology applications can impose a high risk. Thereby, GPTP will accelerate this step by developing staff’s competency and resource capability. Thus, the main stakeholder can learn how to produce and operate from a small module and quickly scale up for commercialization.
Evaluation of Flow Diverter Chemical to Improve Waterflood Performance as Conformance Control for Heterogeneous Reservoir and High-Temperature Field Application: An Innovative Experimental Design
Authors: Zulkifli Nazliah Nazma , Hendraningrat Luky , Razali Norzafirah , Bakri Che Nasser , Zainal Suzalina , Kechut Nor Idah 
Published: February 2023

AbstractWater injection fields account for over half of Malaysia’s oil production, with most of these fields at matured waterflooding stage. Low sweep efficiency due to water conformance where reservoir with high heterogeneity might cause premature breakthrough is one of the issues that leads to low oil recovery. In this study, we described the comprehensive experimental analysis to substantiate waterflooding performance in heterogeneous reservoirs by evaluating the flow diversion chemical (FDC) as a water conformance agent at high temperature.Chemical characterization, rheology, particle size analysis, compatibility, and thermal stability were evaluated for FDC according to the prevailing mechanism. Afterward, an experiment to simulate the reservoir environment was conducted to estimate oil incremental and blocking mechanism, in terms of residual resistance factor (RRF) performance in the intended field condition.The test was innovatively set up using commercial outcrop and reservoir native cores in dual-core permeability systems to test high permeability and low permeability porous media at high temperature up to 115°C temperature to mimic the conformance process. Typical single core flooding test are only able to determine the potential of the blockage mechanism by determining the RRF, without the diversion effect to quantify the additional oil recovery from the flow diversion process. The setup uses cylindrical preserved core plug samples with permeability contrast ranges from 100mD to 2 Darcy and tested at 115°C. The customized coreflood design successfully mimicked the conformance process. In our study, the RRF of 186 and cumulative oil recovery of 52% with an incremental oil recovery of &gt;5% was obtained by the FDC injection.The study provides an innovative way in the coreflooding experiment to evaluate the performance of a conformance control agent in a heterogeneous reservoir with high temperatures.