Showing 221 - 240 results of 3,002 for search '(((((gates OR rates) OR rate) OR rate) OR rate) OR gate) and patterns', query time: 0.16s Refine Results
  1. 221

    Analysis and Evaluation of Temperature⁃Resistant Polyethylene Pipeline Operation in Oil Field by Bing HU, Yongli PANG, Chunyan ZHAO, Fuyong HUO, Xin DU

    Published 2025-08-01
    “…To address the lack of specialized thermal⁃hydraulic calculation models for temperature⁃resistant polyethylene pipelines in oilfield gathering and transportation systems,this study conducted quantitative analysis on their hydraulic friction characteristics and thermal temperature drop patterns during oil transportation through field experiments.Based on multi⁃parameter experimental datasets,systematic investigations were performed to reveal the influence mechanisms of key variables including fluid properties, transportation temperature,rate of water content,and flow rate on pipeline pressure drop and temperature decline.For the first time,a calculation framework for the overall heat transfer coefficient applicable to temperature⁃resistant polyethylene (TRPE ) materials was established.Simulation model libraries were constructed using PIPEPHASE software,followed by comparative analysis of deviations between theoretical predictions and field measurements under varying boundary conditions.Through this process, friction calculation models and heat conduction models tailored for TRPE materials were selected and optimized,which provide valuable theoretical support for the process design and safety evaluation of TRPE pipelines in engineering applications.…”
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  2. 222

    Comparison of ECG Between Gameplay and Seated Rest: Machine Learning-Based Classification by Emi Yuda, Hiroyuki Edamatsu, Yutaka Yoshida, Takahiro Ueno

    Published 2025-05-01
    “…RR interval time series (2 Hz) and heart-rate variability (HRV) indices, including mean RR, SDRR, VLF, LF, HF, LF/HF, and HF peak frequency, were extracted from ECG signals over 5 min and 10 min segments. …”
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  3. 223

    Global, regional, and national burden of gastroesophageal reflux disease (1990–2021): age-period-cohort analysis and Bayesian projections by Liumei Mo, Zhenhao Liu, Wenjing Cao, Hanxian Gong, Jincheng Wu, Mingzhuo Lin, Wei Pan

    Published 2025-07-01
    “…Key indicators included age-standardized prevalence rate (ASPR), age-standardized incidence rate (ASIR), age-standardized YLDs rate (ASYR), and estimated annual percentage change (EAPC). …”
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  4. 224

    Stress reactivity during short trauma narratives in adolescents with post-traumatic stress disorder (PTSD) and complex PTSD by Oswald D. Kothgassner, Sarah Macura, Andreas Goreis, Diana Klinger, Bettina Pfeffer, Sofia M. Oehlke, Karin Prillinger, Johanna X. Kafka, Heidi Elisabeth Zesch, Anna Felnhofer, Paul L. Plener

    Published 2025-12-01
    “…However, understanding the differences in physiological stress reactivity and negative cognitive-emotional patterns between adolescents with PTSD and C-PTSD remains a notable research gap.Objective: This study examined group differences in autonomic nervous system (ANS) reactivity during the sharing of a short trauma narrative, including resting and recovery phases, and compared subjective experiences of stress, shame, and guilt among adolescents with PTSD, C-PTSD, and trauma-exposed controls.Methods: In a repeated-measures design, 52 adolescents (14–18 years) with PTSD (n = 17), C-PTSD (n = 18), and a control group (n = 17) were assessed for heart rate, heart rate variability, and subjective experiences of stress, shame, and guilt during a standardized trauma interview, as well as during baseline and recovery phases.Results: Linear mixed-effects models revealed a significant interaction between group and time point (F = 4.134, p < .001). …”
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  5. 225

    Mechanical and corrosion anisotropy of magnesium single crystal by Dmitry L. Merson, Sergey Ya. Betsofen, Evgeny D. Merson, Vitaly A. Poluyanov, Pavel N. Myagkikh, Aleksey V. Danyuk, Vladimir A. Danilov, Ekaterina I. Maksimenko, Aleksandr I. Brilevskiy

    Published 2025-06-01
    “…Magnesium and its alloys are promising materials for medical use due to their ability to dissolve safely in the human body. However, the rate of dissolution of bioresorbable implants should be in a narrow enough range. …”
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  6. 226

    Global, regional, and national trends in the epidemiology of aortic aneurysms among women of childbearing age, 1990–2021, with predictions through 2036 by Wei Wang, Yong Shi, Xinyao Li, Tianxiang Gu, Enyi Shi

    Published 2025-07-01
    “…Cluster analysis identified patterns across GBD regions. The Socio-demographic Index (SDI) assessed regional and national differences in mortality and DALYs rates related to AA. …”
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  7. 227

    Conventional in vitro fertilization enhances preimplantation genetic testing for aneuploidy outcomes in couples with non-male factor infertility by Xiaolan Li, Qian Li, Yajie Chang, Shujing He, Yanfang Wang, Xiaoyan Liang, Zhiqiang Zhang

    Published 2025-07-01
    “…Although the 2PN fertilization rate was significantly higher in the ICSI-PGT-A group (65.88% vs. 78.46%, P < 0.001), the 2 PN fertilization rate per retrieved oocyte (65.88% vs. 60.48%, P < 0.001), transferable embryo rate on day 3 (76.67% vs. 74.38%, P = 0.029), blastocyst formation rate per 2PN zygote (51.54% vs. 48.32%, P = 0.008), blastocyst available for biopsy per 2PN zygote (35.60% vs. 29.46%, P < 0.001), and blastocyst available for biopsy per oocyte retrieved (23.45% vs. 17.82%, P < 0.001) were significantly lower in the ICSI-PGT-A group. …”
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  8. 228

    Accuracy of photorespiration and mitochondrial respiration in the light fitted by CO2 response model for photosynthesis by Zhengwen Niu, Zi-Wu-Yin Ye, Qi Huang, Chunju Peng, Huajing Kang

    Published 2025-08-01
    “…IntroductionAtmospheric CO2 elevation significantly impacts plant carbon metabolism, yet accurate quantification of respiratory parameters—photorespiration rate (Rp) and mitochondrial respiration rate in the light (Rd)—under varying CO2 remains challenging. …”
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    Cyclic nucleotide-gated ion channel gene CNGC3 positively regulates immunity against Sclerotinia sclerotiorum in Arabidopsis by LIU Mengjiao, YI Hang, CAI Xinzhong

    Published 2022-10-01
    “…Functions and mechanisms of cyclic nucleotide-gated ion channel (CNGC) in plant immunity against necrotrophic pathogens remain largely unknown. …”
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  13. 233

    Sex-biased expression of sex-linked transcripts in spiny frogs with homomorphic sex chromosomes by Yu Xiao, Yun Xia, Xiaomao Zeng

    Published 2025-07-01
    “…Further, the homomorphic sex chromosomes do not show evidence of a faster rate of evolution. Conclusions The sexualization of sex chromosomes in species with homomorphic sex chromosomes may not be as indispensable as hypothesized.…”
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  14. 234

    Neurocardiac signatures of acute mental stress: a sex-comparative study by Selina C. Wriessnegger, Lena Lorenzer, Kyriaki Kostoglou

    Published 2025-08-01
    “…Twenty-five volunteers performed time-constrained mental arithmetic tasks under stress, amplified by workspace noise and negative feedback.ResultsResponse-locked heart rate (HR) data revealed a parasympathetic deceleration at response onset, followed by sympathetic rebound, with deeper HR dips linked to higher stress levels. …”
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  15. 235

    GraphFedAI framework for DDoS attack detection in IoT systems using federated learning and graph based artificial intelligence by Mohd Anjum, Ashit Kumar Dutta, Ali Elrashidi, Sana Shahab, Asma Aldrees, Zaffar Ahmed Shaikh, Abeer Aljohani

    Published 2025-08-01
    “…This integration also ensures system scalability, as FL adapts training based on localized network topology.The system is evaluated using the CIC-IoT-2023 dataset, demonstrating its effectiveness in achieving high detection accuracy, low false positive rates, and strong resilience under dynamic IoT conditions.…”
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  16. 236

    Statistical analysis of disability: Utilizing the modified kies power unit inverse Lindley model by Mohamed A. Abd Elgawad, Safar M. Alghamdi, Rana H. Khashab, Etaf Alshawarbeh, Ehab M. Almetwally, Mohammed Elgarhy

    Published 2025-07-01
    “…The MKPUILD is very flexible model because it’s probability density function and hazard rate function have different shapes as unimodal, right-skewed, left-skewed, bathtub, increasing, N-shaped. …”
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  17. 237

    Sub-activity analysis by using wristband-type wearable health devices to measure construction workers’ physical demands by Jiayao Wang, JoonOh Seo, Yue Gong, Ming-Fung Fransic Siu, Sungjoo Hwang, Masood Khan

    Published 2025-06-01
    “…This study addresses this critical gap by using lightweight wearable wristbands equipped with heart rate (HR) biosensors to monitor workers’ activities without disrupting their tasks. …”
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  18. 238
  19. 239

    Case report: Biphasic autonomic response in decompression sickness: HRV and sinoatrial findings by Gerald Schmitz

    Published 2025-04-01
    “…BackgroundDecompression sickness (DCS) may involve neurological and cardiovascular systems, but cardiac autonomic dysfunction is rarely documented. Heart rate variability (HRV) can provide insight into autonomic modulation in such cases, particularly when incorporating advanced nonlinear and dynamic techniques.CaseWe present a 35-year-old recreational diver who developed neurological DCS and persistent bradycardia following multiple consecutive dives. …”
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  20. 240

    Modeling Ontology-Based Decay Analysis and HBIM for the Conservation of Architectural Heritage: The Big Gate and Adjacent Curtain Walls in Ibb, Yemen by Basema Qasim Derhem Dammag, Dai Jian, Abdulkarem Qasem Dammag, Yahya Alshawabkeh, Sultan Almutery, Amer Habibullah, Ahmad Baik

    Published 2025-08-01
    “…This study introduces a comprehensive framework combining Historic Building Information Modeling (HBIM) with ontology-based modeling aligned with the CIDOC Conceptual Reference Model (CIDOC CRM). Focusing on the Big Gate and adjacent curtain walls in Ibb, Yemen, where the gate is entirely lost, the study reconstructs the structure using historical photographs, eyewitness accounts, and analogical references. …”
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