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46021
Reservoir Sensitivity Analysis of Tight Sandstone and Its Controlling Factors: A Case Study from Chang 4+5 to Chang 6 Reservoirs in N 212 Well Block of Nanniwan Oilfield, Ordos Bas...
Published 2023-01-01“…It is helpful for reducing the damage on tight sandstone reservoir to study the reservoir sensitivity and its controlling factors. This paper mainly focuses on the tight sandstone of the Chang 4+5 and Chang 6 reservoirs of the Yanchang Formation in the Nanniwan Oilfield, Ordos Basin. …”
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46022
Existence of Bounded Solutions for a Class of Degenerate Fourth-Order Elliptic Equations with Convection Terms
Published 2024-12-01“…This paper deals with the existence of bounded and locally Hölder continuous weak solutions of the following nonlinear fourth-order Dirichlet problem: <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mstyle displaystyle="true"><munder><mo>∑</mo><mrow><mo>|</mo><mi>α</mi><mo>|</mo><mo>=</mo><mn>1</mn><mo>,</mo><mn>2</mn></mrow></munder></mstyle><msup><mrow><mo>(</mo><mo>−</mo><mn>1</mn><mo>)</mo></mrow><mrow><mo>|</mo><mi>α</mi><mo>|</mo></mrow></msup><msup><mrow><mi mathvariant="normal">D</mi></mrow><mi>α</mi></msup><mfenced separators="" open="[" close="]"><msub><mi>A</mi><mi>α</mi></msub><mrow><mo>(</mo><mi>x</mi><mo>,</mo><mi>u</mi><mo>,</mo><msup><mrow><mi mathvariant="normal">D</mi></mrow><mn>1</mn></msup><mi>u</mi><mo>,</mo><msup><mrow><mi mathvariant="normal">D</mi></mrow><mn>2</mn></msup><mi>u</mi><mo>)</mo></mrow><mo>−</mo><msub><mi>E</mi><mi>α</mi></msub><mrow><mo>(</mo><mi>x</mi><mo>)</mo></mrow><mo> </mo><msup><mrow><mo>|</mo><mi>u</mi><mo>|</mo></mrow><mrow><mi>λ</mi><mo>(</mo><msub><mi>p</mi><mi>α</mi></msub><mo>−</mo><mn>1</mn><mo>)</mo></mrow></msup><mo> </mo><mo>sign</mo><mi>u</mi></mfenced><mo>=</mo><mi>f</mi></mrow></semantics></math></inline-formula> in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mo>Ω</mo></semantics></math></inline-formula>, where the coefficients <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>A</mi><mi>α</mi></msub></semantics></math></inline-formula> satisfy a strengthened degenerate coercivity condition.…”
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46023
A mixed methods crossover randomized controlled trial exploring the experiences, perceptions, and usability of artificial intelligence (ChatGPT) in health sciences education
Published 2024-12-01“…Background Generative artificial intelligence (AI) integrated programs such as Chat Generative Pre-trained Transformers (ChatGPT) are becoming more widespread in educational settings, with mounting ethical and reliability concerns regarding its usage. This paper explores the experiences, perceptions, and usability of ChatGPT in undergraduate health sciences students. …”
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46024
Study on the synergistic hydration mechanism of granulated blast furnace slag-carbide slag-based cementitious materials and the properties of full-solid waste backfill materials
Published 2025-01-01“…Abstract The synergistic utilization of multiple solid waste is an effective means of achieving green filling and resource utilization of solid waste in mines. In this paper, the synergistic effects of solid waste granulated blast furnace slag (GS) and carbide slag (CS) as cementitious materials (GCCM) are investigated, along with their preliminary feasibility in combination with coal gangue (CG) and furnace bottom slag (FBS) for the preparation of backfill materials. …”
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46025
The Soviet Factor in the US-China Military-Technical Cooperation during the Cold War
Published 2021-10-01“…The first and the last of these phases (from 1949 to 1961, and from 1992 till present) received wide attention in both Chinese and Western academic literature, whereas the second one — from 1978 to 1989 —when the PRC actively purchased weapons and technologies from the Western countries remains somewhat understudied. This paper is intended to partially fill this gap. The author examines the logic of the military-technical cooperation between the PRC and the United States in the context of complex interactions within the United States — the USSR — China strategic triangle in the last years of the Cold War. …”
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46026
QUALITY EVALUATION OF THE TPP POWER GENERATING UNITS WEAR RECONDITIONING
Published 2016-02-01“…Further to regulating techniques by way of informational support, the authors propose conducting the wear-reconditioning quality evaluation (repair quality) accordingly the technical-and-economic indexes pattern of change. The paper recommends applying similarly the fivegrade system in evaluating the power generating unit technical state and distinguishes intolerable, dissatisfactory, fair, good and model estimates. …”
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46027
Stakeholders’ Roles in Evolutionizing Education: An Evolutionary-Based Toolkit Surrounding Elementary Education
Published 2025-01-01“…In order to create effective change, there must be collaborative work done by parents, teachers, and school administrators. This paper delineates the roles of these stakeholders in elementary education with respect to creating more evolutionarily relevant systems. …”
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46028
Use of healthcare services during the COVID-19 pandemic in urban Ethiopia: evidence from retrospective health facility survey data
Published 2022-02-01“…With the onset and spread of COVID-19, the attention of the healthcare system has pivoted to handling the disease, potentially at the cost of other healthcare needs. This paper explores whether this shift has come at the cost of non-Covid related healthcare, especially the use of maternal and child health (MCH) services.Setting Data covering a 24-month period are drawn from 59 health centres and 29 public hospitals located in urban Ethiopia.Primary and secondary outcomes measures The primary outcome measures are the use of MCH services including family planning, antenatal and postnatal care, abortion care, delivery and immunisation. …”
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46029
A new guide for basic psychological support for persons affected by neglected tropical diseases: A peer support tool suitable for persons with a diagnosis of leprosy and lymphatic...
Published 2025-01-01“…As there was no written document advising delivery of such support, NLR India brought experts together to develop a new guide. This paper describes the process used in developing the guide and provides information about its content.…”
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46030
Comparative analysis of brushless DC and switched reluctance motors for optimizing off-grid water pumping
Published 2025-01-01“…Abstract Off-grid water pumping systems (OGWPS) have become an increasingly popular area of research in the search for sustainable energy solutions. This paper presents a finite element method (FEM)-based design and analysis of Brushless-DC (BLDC) and Switched Reluctance Motors (SRM) designed for low-power water pumping applications. …”
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46031
Do Not Hallow until You Are out of the Wood! Ultrasonographic Detection of CPP Crystal Deposits in Menisci: Facts and Pitfalls
Published 2013-01-01“…The possible reasons of misinterpretation or misdiagnosis of the in vivo exam were identified and are extensively described in the paper. Also a new sign of CPP crystal deposits was found. …”
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46032
Global-Mapping-Consistency-Constrained Visual-Semantic Embedding for Interpreting Autonomous Perception Models
Published 2024-01-01“…From the perspective of artificial intelligence evaluation, the need to discover and explain the potential shortness of the evaluated intelligent algorithms/systems as well as the need to evaluate the intelligence level of such testees are of equal importance. In this paper, we propose a possible solution to these challenges: Explainable Evaluation for visual intelligence. …”
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46033
Offshore Network Development to Foster the Energy Transition
Published 2025-01-01“…Starting from a realistic estimate of the offshore wind power plants (OWPPs) to be realized off the southern coasts in a very long-term scenario, this paper presents a novel optimization procedure for meshed AC offshore network configuration, aiming at minimizing the offshore wind generation curtailment based on the DC optimal power flow approximation, assessing the security condition of the whole onshore and offshore networks. …”
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46034
Identifying the Geographical Origin of Tobacco Leaf by Strontium and Lead Isotopic with Mineral Elemental Fingerprint
Published 2022-01-01“…The primary aim of this paper was to identifying the geographical origin of tobacco leaves based on stable isotopic and mineral elemental fingerprint. …”
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46035
An Efficient Group Convolution and Feature Fusion Method for Weed Detection
Published 2024-12-01“…Currently, research on vegetable weed detection technology is relatively limited, and existing detection methods still face challenges due to complex natural conditions, resulting in low detection accuracy and efficiency. This paper proposes the YOLOv8-EGC-Fusion (YEF) model, an enhancement based on the YOLOv8 model, to address these challenges. …”
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46036
Analysis on Influence Factors of Roadway Instability in High-Stress, Steeply Inclined Extra-Thick Coal Seam
Published 2021-01-01“…Based on bolt support theory and instability mechanism of the coal rock dynamic system, this paper puts forward the evaluation of support effect and the optimization parameters of bolt support, and the scheme of mine pressure monitoring and the corresponding support optimization system are established. …”
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46037
Knowledge, Attitude, Awareness, and Practice Regarding Demodex Mites Among the Thai Population
Published 2025-01-01“…The survey was distributed via Google Forms, social media platforms, and paper questionnaires.Results: Among 540 participants, the average age was 38.65 years, with 52% males. …”
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46038
Heterogeneous foraging swarms can be better
Published 2025-01-01“…IntroductionInspired by natural phenomena, generations of researchers have been investigating how a swarm of robots can act coherently and purposefully, when individual robots can only sense and communicate with nearby peers, with no means of global communications and coordination. In this paper, we will show that swarms can perform better, when they self-adapt to admit heterogeneous behavior roles.MethodsWe model a foraging swarm task as an extensive-form fully-cooperative game, in which the swarm reward is an additive function of individual contributions (the sum of collected items). …”
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46039
Modification of Chitosan/PEG4000 dispersed with Lithium Triflate (LiCF\(_3\)SO\(_3\)) as a solid polymer electrolyte for the secondary battery
Published 2024-12-01“…The solid electrolytes modification using chitosan can be done by adding other polymers and salts as fillers and Li+ ion-making agents. This scientific paper offers an overview of the development of chitosan-based secondary battery solid electrolytes with the addition of PEG4000 polymer and LiCF3SO3. …”
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46040
Barriers Impeding Postgraduate Training Completion and Dissertation Submission and Defense
Published 2019-09-01“…Further, factors of the secondary level in obtaining a positive result of postgraduate training are analyzed. The paper considers the possibility of carrying out some measures to reduce the barriers to successful completion of postgraduate training and Candidate thesis defense. …”
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