Showing 46,021 - 46,040 results of 50,416 for search '"paper"', query time: 0.25s Refine Results
  1. 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... by Pingtian Fan, Yuetian Liu, Ping Li, Yanqin Guo, Weichu Yu, Baiqiang Li

    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. …”
    Get full text
    Article
  2. 46022

    Existence of Bounded Solutions for a Class of Degenerate Fourth-Order Elliptic Equations with Convection Terms by Salvatore D’Asero

    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.…”
    Get full text
    Article
  3. 46023

    A mixed methods crossover randomized controlled trial exploring the experiences, perceptions, and usability of artificial intelligence (ChatGPT) in health sciences education by Mirella Veras, Joseph-Omer Dyer, Holly Shannon, Bryce J M Bogie, Morgan Ronney, Harmehr Sekhon, Derek Rutherford, Paulo Goberlânio Barros Silva, Dahlia Kairy

    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. …”
    Get full text
    Article
  4. 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 by Jianmin Li, Liwen Guo, Jiayong Zhang, Ye Li, Li Ma, Kai Wang

    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. …”
    Get full text
    Article
  5. 46025

    The Soviet Factor in the US-China Military-Technical Cooperation during the Cold War by Yinan Li

    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. …”
    Get full text
    Article
  6. 46026

    QUALITY EVALUATION OF THE TPP POWER GENERATING UNITS WEAR RECONDITIONING by E. M. Farhadzadeh, A. Z. Muradaliyev, Yu. Z. Farzaliyev

    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. …”
    Get full text
    Article
  7. 46027

    Stakeholders’ Roles in Evolutionizing Education: An Evolutionary-Based Toolkit Surrounding Elementary Education by Kathryne Gruskin, Mariah Griffin, Sonaskshi Bansal, Stephanie Dickinson-Frevola, Ashlee Dykeman, Desiree Groce-Volinski, Keydy Henriquez, Maya Kardas, Aileen McCarthy, Aman Shetty, Brandon Staccio, Glenn Geher, Ethan Eisenberg

    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. …”
    Get full text
    Article
  8. 46028

    Use of healthcare services during the COVID-19 pandemic in urban Ethiopia: evidence from retrospective health facility survey data by Getnet Alemu, Arjun S Bedi, Zemzem Shuka, Anagaw Mebratie, Matthias Rieger

    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. …”
    Get full text
    Article
  9. 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... by Pradeepta K Nayak, Charles D Mackenzie, Ashok Agarwal, Robin van Wijk, Marente M Mol, Julian Eaton, Maya Semrau, Carmen Valle-Trabadelo, Gauri S Kaloiya, Alok Pratap, Jayashree P Kunju, Suma Krishnasastry, Astri Ferdiana, Ariana Marastuti, Rohit K Tiwari, Wim H van Brakel

    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.…”
    Get full text
    Article
  10. 46030

    Comparative analysis of brushless DC and switched reluctance motors for optimizing off-grid water pumping by Avinash Kumar, Sanjay Marwaha, Manpreet Singh Manna, Anupma Marwaha, Rajat Kumar, Mohammad Amir, Mohit Bajaj, Ievgen Zaitsev

    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. …”
    Get full text
    Article
  11. 46031

    Do Not Hallow until You Are out of the Wood! Ultrasonographic Detection of CPP Crystal Deposits in Menisci: Facts and Pitfalls by Georgios Filippou, Antonella Adinolfi, Panagiotis Bozios, Sauro Lorenzini, Valentina Picerno, Valentina Di Sabatino, Ilaria Bertoldi, Dario Gambera, Mauro Galeazzi, Bruno Frediani

    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. …”
    Get full text
    Article
  12. 46032

    Global-Mapping-Consistency-Constrained Visual-Semantic Embedding for Interpreting Autonomous Perception Models by Chi Zhang, Meng Yuan, Xiaoning Ma, Ping Wei, Yuanqi Su, Li Li, Yuehu Liu

    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. …”
    Get full text
    Article
  13. 46033

    Offshore Network Development to Foster the Energy Transition by Enrico Maria Carlini, Corrado Gadaleta, Michela Migliori, Francesca Longobardi, Gianfranco Luongo, Stefano Lauria, Marco Maccioni, Jacopo Dell’Olmo

    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. …”
    Get full text
    Article
  14. 46034

    Identifying the Geographical Origin of Tobacco Leaf by Strontium and Lead Isotopic with Mineral Elemental Fingerprint by Liu Hong, Wenyuan Wang, Yang Su, Guiping Zhang, Yong Su, Chenming Zhang, Jianhua Chen, Wei Zhe, Zhihua Liu, Jianyong Cui, Deshou Mao, Jin Wang

    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. …”
    Get full text
    Article
  15. 46035

    An Efficient Group Convolution and Feature Fusion Method for Weed Detection by Chaowen Chen, Ying Zang, Jinkang Jiao, Daoqing Yan, Zhuorong Fan, Zijian Cui, Minghua Zhang

    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. …”
    Get full text
    Article
  16. 46036

    Analysis on Influence Factors of Roadway Instability in High-Stress, Steeply Inclined Extra-Thick Coal Seam by Hai Rong, Liting Pan, Xiaoyan Li, Ming Wang, Zeliang Qu, Mengsheng Lu, Kaipeng Guo

    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. …”
    Get full text
    Article
  17. 46037

    Knowledge, Attitude, Awareness, and Practice Regarding Demodex Mites Among the Thai Population by Paichitrojjana A, Paichitrojjana A

    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. …”
    Get full text
    Article
  18. 46038

    Heterogeneous foraging swarms can be better by Gal A. Kaminka, Yinon Douchan

    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). …”
    Get full text
    Article
  19. 46039

    Modification of Chitosan/PEG4000 dispersed with Lithium Triflate (LiCF\(_3\)SO\(_3\)) as a solid polymer electrolyte for the secondary battery by Kartika Sari, Arifin Nur Muhammad Haryadi, Nur Khusaenah, Sudaryanto, Evi Yulianti, Agung Bambang Setio Utomo

    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. …”
    Get full text
    Article
  20. 46040

    Barriers Impeding Postgraduate Training Completion and Dissertation Submission and Defense by G. U. Matushansky, G. V. Zavada, Yu. G. Matushanskaya

    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. …”
    Get full text
    Article