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Showing 1,621 - 1,640 results of 2,280 for search '(( variable function (coefficient. OR coefficiency.) ) OR ( variables function efficient. ))*', query time: 0.17s Refine Results
  1. 1621

    Dynamic Stability of a Circular Pre-Stressed Elastic Orthotropic Plate Subjected to Shock Excitation by Yuriy A. Rossikhin, Marina V. Shitikova

    Published 2006-01-01
    “…Behind the fronts of these waves, the solution is constructed in terms of ray series, which coefficients are the different order discontinuities in partial time-derivatives of the desired functions, and a variable is the time elapsed after the wave arrival at the plate’s point under consideration. …”
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  2. 1622

    Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System by Lv Tiangang, Liu Bing, Wu Jun, Zhu Li, Hou Jingxuan

    Published 2025-01-01
    “…By employing the Hooke-Jeeves algorithm, the system's design and operation parameters were optimized with annual cost and system COP as objective functions. Design variables included PVT inclination, azimuth, area, heat pump capacity, and tank volume, while operational variables were PVT backplate temperature and tank temperature. …”
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  3. 1623

    Optimization of K-Shaped Metal Sealing Ring for Subsea Tubing Hanger Based on Response Surface Method by Huan Xie, Hongxia Zhang, Yiwei Fan, Liyuan Liu, Wei Zeng

    Published 2025-01-01
    “…To address the issue of low optimization efficiency due to the need for repeated finite element calculations during the optimization process, quadratic response surface models are established for the sealing performance indicators of the K-shaped seal ring, which were then used as the optimization objective functions to enhance the optimization efficiency. …”
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  4. 1624

    Human saliva exerts strong type-dependent effects on adenovirus infectivity by Erwan Sallard, Wenli Zhang, Nikita Chilakamarri, Setareh Farzanehkari, Setareh Farzanehkari, Inga Marte Charlott Seuthe, Anja Ehrhardt, Malik Aydin, Malik Aydin

    Published 2025-06-01
    “…All human Ads used were replication-competent and expressed a GLN cassette containing a green-fluorescent protein, nano-luciferase, and neomycin resistance. Loss-of-function experiments were conducted by immunoprecipitation or enzymatic digestion of specific saliva components to decipher related mechanisms.ResultsTemporal and inter-individual variability in saliva samples were observed, validating the use of a saliva pool to represent the population. …”
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  5. 1625

    Hemodynamic homeostasis disequilibrium in critical illness by Jie Wang, Xiaoting Wang, Dawei Liu, Hui Lian, Guangjian Wang, Zewen Tong, Qingyu Deng, Qirui Guo, Qian Zhang, Yangong Chao, Wanhong Yin

    Published 2025-07-01
    “…Such balance is essential for sustaining cellular metabolism and maintaining the function of vital organs throughout embryonic development and the human lifespan. …”
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  6. 1626

    Solving 0-1 Knapsack and Bin Packing Problem Using Logical Social Group Optimization by Rhiddhi Prasad Das, Junali Jasmine Jena, Suresh Chandra Satapathy, Naeem M. S. Hannoon

    Published 2025-01-01
    “…This prominent research gap has been addressed in this paper by introducing Logical Social Group Optimization (LSGO), a logic-based binarized variant of Social Group Optimization (SGO) that leverages Boolean logic for improved efficiency. In LSGO, after the binarization by replacing the arithmetic operators with logical operators, one of the variables gets cancelled out. …”
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  7. 1627

    Framework for extracting multi-objective operation rules for cascade reservoirs based on causal features and physical mechanisms by Donglin Gu, Baowei Yan, Jianbo Chang, Yixuan Zou, Dongxu Yang, Mingbo Sun, Xiaoyu Diao

    Published 2025-08-01
    “…To reduce high dimensionality, Convergent Cross Mapping (CCM) quantifies causal relationships between features and decision variables. Moreover, embedding physical constraints into the model’s loss function further enhances interpretability. …”
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  8. 1628

    Interpretable machine learning for predicting isolated basal septal hypertrophy. by Lei Gao, Boyan Tian, Qiqi Jia, Xingyu He, Guannan Zhao, Yueheng Wang

    Published 2025-01-01
    “…This is a common echocardiographic finding with a prevalence of approximately 7-20%, which may indicate early structural and functional remodeling of the left ventricle in certain pathologies. …”
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  9. 1629

    Moral Development and Wisdom: The Mediating Role of Moral Intelligence and Emotional Intelligence by Heng Zheng, Jing Dong, Yang Lihua

    Published 2025-05-01
    “…Results: The results showed that the conceptual model of the study had an appropriate fit. Examining the coefficients of the effects of the research variables on each other, it seemed that moral development had a direct standardized effect coefficient of 0.53 on intelligence. …”
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  10. 1630

    Optimal selection of satellite XCO<sub>2</sub> images for urban CO<sub>2</sub> emission monitoring by A. Danjou, G. Broquet, A. Schuh, F.-M. Bréon, T. Lauvaux, T. Lauvaux

    Published 2025-01-01
    “…This study analyzes the performances of an automated method for estimating urban emissions as a function of the targeted cities and of the atmospheric conditions. …”
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  11. 1631

    أثر كفاءة الجھاز التنفسي في ألانجاز الرقمي لعدائي ( -5001500 للشباب بأعمار دون( 20 )سنة by عباس فاضل جابر, ماهر عبداللطيف عارف

    Published 2014-05-01
    “… A study conducted on a sample of runners ran (1500 m -5000 m) youth Reconstruction without (20) years to know the effect of the efficiency of the respiratory tract in the achievement digital The study aimed to identify the impact of the efficiency of the respiratory system of delivery for digital hostile (1500-5000) meters for youth ages without 20 years old and to identify the relationship between some of the functions of breath and time ran 1,500 meters and 5,000 meters for young people under the age of 20 years and get the equation predictive time-ran 1,500 meters and 5,000 meters for young people under the age of 20 years have been identified measurements that will be used in the research is vital capacity of the lungs VC)) and vital capacity rapid ( FVC) and the volume of exhaled air after the first second (FEV1) and the percentage of the volume of exhaled air after the first second (FEV1%) and the average maximum speed of exhalation (MMF) and compression force exhaled air - rate the passage of exhaled air (PEF) has concluded the researchers to some of the findings, including the existence of correlation between some of the functions of breath and time ran (1500-5000) meters for youth and appeared vital capacity of the lungs during rest (VCr) preference efficiency Respiratory to hostile five thousand meters on the hostile thousand and five hundred meters clearly. emerged as functions of breathing contribute to the time he ran (1500) m is the rate of passage of exhaled air PEF and jointly by (41.55%), followed by vital capacity maximum (FVC) by (5.71%) and the volume exhaled air after the first second (FEV1) increased by 3.55% and the three variables contribute by 49.11% at the time ran the 1,500 meters. …”
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  12. 1632

    Development and evaluation of a predictive model of upper gastrointestinal bleeding in liver cirrhosis by Jin Peng, Huiru Jin, Ningxin Zhang, Shiqiu Zheng, Chengxiao Yu, Jianzhong Yu, Longfeng Jiang

    Published 2025-03-01
    “…Once bleeding occurs, the risk of recurrent episodes substantially increases, further compromising liver function and worsening patient outcomes. This study aims to identify risk factors for UGIB in cirrhotic patients using clinical examination data and to develop a non-invasive predictive model to improve diagnostic precision and efficiency. …”
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  13. 1633

    Potential Protective Effect of Orlistat: A Formulation of Nanocrystals Targeting Inflammation, Oxidative Stress, and Apoptosis in an Experimental Model of Doxorubicin-Induced Cardi... by Maha Alsunbul, Thanaa A. El-Masry, Enas I. El Zahaby, Mohamed M. S. Gaballa, Maysa M. F. El-Nagar

    Published 2024-10-01
    “…The study results indicated that DOX caused significant cardiotoxicity, as revealed by a remarkable rise in cardiac function biomarkers like LDH and CK-MB, which involve enzyme activities. …”
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  14. 1634

    Predicting and Mapping of Soil Organic Matter with Machine Learning in the Black Soil Region of the Southern Northeast Plain of China by Yiyang Li, Gang Yao, Shuangyi Li, Xiuru Dong

    Published 2025-02-01
    “…In terms of accuracy, the coefficient of determination of RF was 0.77, and the root mean square error was 2.85. …”
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  15. 1635
  16. 1636

    The IoT Technologies Acceptance in Education by the Students From the Economic Studies in Romania by Liliana Ionescu-Feleaga, Bogdan-Ștefan Ionescu, Mariana Bunea

    Published 2021-05-01
    “…The study included 1,179 students from four university centers from Romania and the included factors from the acceptance of IoT technologies model (Internet of Things) were analyzed using the quantitative statistical methods in SPSS, applying a series of tests processed to highlight the research results, respectively the reliability test, the validity test, the chi-square test and the Person's correlation coefficient. The results of the study show the existence of a positive correlation between the research variables and indicate that the students from the economic studies, are ready to accept the new technological advances in IoT and to implement them in their future jobs…”
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  17. 1637

    Copula Modeling and Uncertainty Propagation in Field‐Scale Simulation of CO2 Fault Leakage by Per Pettersson, Eirik Keilegavlen, Tor Harald Sandve, Sarah E. Gasda, Sebastian Krumscheid

    Published 2025-01-01
    “…The uncertainty in upscaled flow functions and other uncertain parameters are efficiently propagated to leakage estimates using numerical reservoir simulation of a two‐phase system of CO2 and brine. …”
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  18. 1638

    Analysis of Surface Roughness and Machine Learning-Based Modeling in Dry Turning of Super Duplex Stainless Steel Using Textured Tools by Shailendra Pawanr, Kapil Gupta

    Published 2025-06-01
    “…One of the most critical aspects of turning, and machining in general, is the surface roughness of the finished product, which directly influences the performance, functionality, and longevity of machined components. …”
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  19. 1639

    Dual-Stream Enhanced Deep Network for Transmission Near-Infrared Dorsal Hand Vein Age Estimation with Attention Mechanisms by Zhenghua Shu, Zhihua Xie, Xiaowei Zou

    Published 2024-11-01
    “…Simultaneously, another deep residual network is leveraged to strengthen the representation ability on subtle dorsal vein textures. Moreover, variable activation functions and pooling layers are integrated into the respective streams to enhance the nonlinearity modeling of the dual-stream model. …”
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  20. 1640

    The impact of energy poverty on the health capital of middle-aged and older adult residents in rural China by Cuiting Yu, Tianrun Li, Qin Wan

    Published 2025-04-01
    “…Endogeneity was addressed using instrumental variables and propensity score matching.ResultsThe findings indicate that energy poverty has a significant negative impact on health capital, with a regression coefficient of −0.221(p&lt;0.01), lowering self-rated health levels. …”
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