Showing 101 - 120 results of 421 for search 'Probability density evaluation', query time: 0.11s Refine Results
  1. 101

    Efficacy and safety of Shenxiong-Xinmaikang Decoction in patients with stable angina pectoris: a real-world prospective observational study by Yanchen Dong, Yanchen Dong, Yanchen Dong, Kaojuan Zeng, Yongzhen Liang, Yongzhen Liang, Guoping Xie, Donghui Liang, Donghui Liang

    Published 2025-07-01
    “…Furthermore, the CTCM group showed lower levels of low-density lipoprotein cholesterol (LDL-C), creatine kinase (CK), high-sensitivity C-reactive protein (hs-CRP), and cardiac troponin I (cTnI). …”
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  2. 102

    Comprehensive Evaluation of Operation Safety of Earth-rock Dams Based on Weight Optimization-cloud Model by ZHANG Jianwei, WU Weitao, HOU Ge, HUANG Jinlin, WANG Bingpeng, LIU Hongze, HU Zixu

    Published 2025-07-01
    “…The expected value of the membership degree was derived based on the normal distribution probability density function and was taken as the theoretical solution. …”
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  3. 103

    Cache-Enabled Software Defined Heterogeneous Networks for Green and Flexible 5G Networks by Jiaxin Zhang, Xing Zhang, Wenbo Wang

    Published 2016-01-01
    “…In this paper, a cache-enabled wireless heterogeneous network with the control-plane (<inline-formula> <tex-math notation="LaTeX">$C$ </tex-math></inline-formula>-plane) and user-plane (<inline-formula> <tex-math notation="LaTeX">$U$ </tex-math></inline-formula>-plane) split is proposed, where the macro cell and SCs with different cache abilities are overlaid and cooperated together in the backhaul scenario. Using an evaluation tool composed of stochastic processes and classical power consumption model, key performance indicators, e.g., the coverage probability, throughput, and energy efficiency (EE), are derived as closed-form expressions or the functions of the signal-to-interference-plus-noise ratio threshold, path loss exponent, transmission power and density of macro and SCs, cache ability, file popularity, and backhaul capacity. …”
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  4. 104

    Ultrasonic measurement of BMD,FRAX~? and OSTA in the prediction of fracture risk in maintenance hemodialysis by ZHANG Yan-ni, XIA Meng-di, WANG Bao-fu, XIE Xi-sheng

    Published 2018-01-01
    “…Objective To evaluate the and compare the validity of quantitative ultrasound bone(QUS)(BMD),FRAX Methods measurements to measure bone mineral density and OSTA for predicting(MHD)fracture risk in maintenance hemodialysis patients.from 113 patients from the Blood Purification this Center The of Nanchong Central Hospital January factors were 2013 to January 2015 were data fitted of in information,clinical about osteoporosis,and study.one demographic risk of the BMD from in third of distal was radius the MHD FRAX patients and collected.ROC The probability of fracture risk MHD patients calculated by OSTA.curves patients females were was drawn.The validity of BMD,FRAX and fitted OSTA in for predicting fracture risk There in MHD were compared.50 Results with 113patients were years predicting 56 fracture risk.63 and males age ranging(years)()patients,and13 the-83 mean 6±16.0 87 The fracture The group had 14 12.39%..()control group had 99.61%patients.±1.91 average BMD in the fracture The group and control()group was-3.69±2.32 and-2.09 respectively P<0.05 FRAX~?…”
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  5. 105

    RELIBILITY EVALUATION OF COMMERCIAL VEHICLE ENGINE AND CHASSIS SYSTEM BASED ON FAULT DATA

    Published 2024-01-01
    “…The reliability of engine and chassis system is the key factor affecting the performance of commercial vehicles.Accurate and comprehensive evaluation of its reliability is of great significance to guide the improvement of commercial vehicle reliability.Based on big data of faults,a reliability evaluation was conducted for the engine and chassis of four commercial vehicles within a specific manufacturing enterprise.All the fault data of the four commercial vehicles in 2021 were collected for preliminary statistical analysis,and a random sample was drawn to form an analysis sample.Based on the U-test to test the difference between the sample and the overall data distribution,the probability density distribution function of the engine and chassis system fault interval was fitted,and it was inferred that the distribution law satisfied the Weibull distribution.The traditional median rank method and kernel density estimation method were used to mutually verify and calculate the distribution parameters of the system.The Kolmogorov-Smirnov(K-S)hypothesis test was used to verify that the sample data of the fault interval time followed the Weibull distribution.The reliability evaluation indexes such as reliability,failure rate and mean time between failures were calculated.After 500 days of driving,the reliability of the four commercial vehicles were 0.002,0.003,0.007 and 3×10-9.The fault rates were 0.021,0.016,0.015 and 0.063.The average time between fault were 146.088,129.492,149.755 and 70.897 days.Based on the reliability evaluation results and fault contents of engine and chassis system,the optimization scheme was proposed to provide reference for the reliability improvement of the commercial vehicle system.…”
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  6. 106

    A new quantitative evaluation method for drilling risk based on uncertainty analysis by Zhichuan Guan, Ya-Nan Sheng, Ming Luo, Yuqiang Xu, Bo Zhang, Qing Wang

    Published 2018-08-01
    “…Thereafter, the probability distributions of formation pressure and ECD were obtained. …”
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  7. 107
  8. 108

    Association between bone turnover markers and FRAX predicted fracture risk in Chinese adults: a cross-sectional study by Xiaoli Qu, Qinyi Wang, Chuo Luo, Yongfang Li, Lin Tian, Lulu Xu, Zhifeng Sheng

    Published 2025-05-01
    “…The objective of the study was to evaluate the potential effects of BTMs in fracture risk. …”
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  9. 109

    NEW METABOLIC INDEX USE POTENTIALITIES IN EVALUATION OF INSULIN RESISTANCE IN CLINICAL PRACTICE by G. E. Roytberg, J. V. Dorosh, O. O. Sharkhun, T. I. Ushakova, E. A. Trubino

    Published 2015-09-01
    “…The HOMA-IR index and ratio of plasma triglyceride to high-density lipoprotein cholesterol concentration are the most frequently used indices in clinical and epidemiological scientific research. …”
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    Article
  10. 110

    Influence of Model Resolution on Wind Energy Simulations over Tibetan Plateau Using CMIP6 HighResMIP by Jianhong Jiang, Yongjin Yu, Yang Zhou, Shimeng Qian, Hao Deng, Jianning Tao, Wei Hua

    Published 2024-11-01
    “…Compared with the wind speed, the GCMs showed larger biases in reproducing the wind power density (WPD) and other wind energy resources, whereas the biases in multi-model ensembles were relatively smaller than those in most individual models. …”
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  11. 111

    Soluble low-density lipoprotein receptor-related protein 1 as a surrogate marker of carotid plaque inflammation assessed by 18F-FDG PET in patients with a recent ischemic stroke by Eduardo Garcia, Pol Camps-Renom, Núria Puig, Alejandro Fernández-Leon, Ana Aguilera-Simón, Aleyda Benitez-Amaro, Arnau Solé, David Vilades, José Luis Sanchez-Quesada, Joan Martí-Fàbregas, Elena Jiménez-Xarrié, Sonia Benitez, Vicenta Llorente-Cortés

    Published 2023-02-01
    “…Abstract Background 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) identifies carotid plaque inflammation and predicts stroke recurrence. Aim Our aim was to evaluate the performance of soluble low-density lipoprotein receptor-related protein 1 (sLRP1) as an indicator of carotid plaque inflammation. …”
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  12. 112
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  14. 114

    Assessing species interactions using integrated predator-prey models by Paquet, Matthieu, Barraquand, Frédéric

    Published 2023-11-01
    “…This allows to specify IPMs for multiple species with interactions specified as links between vital rates and stage-specific densities. However, there is no evaluation of such models when interactions are actually absent---while any interaction inference method runs the risk of producing false positives. …”
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  15. 115

    Evaluation of irisin levels and lipid profiles in obese men with type 2 diabetes mellitus by Duha T. Al-Taie, Muneera M. Adlan

    Published 2025-06-01
    “…The concentration of high-density lipoprotein in the serum of patients with type 2 DM and obesity in both age groups decreased significantly compared to healthy people at the probability level of P ≤ 0.05. …”
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  16. 116
  17. 117

    Research on reliability evaluation method of anchor cable support system based on Wiener process by Mingjia Wu, Zhanshan Shi, Zhiqiang Lv, Gang Li, Bing Qin, Jianfeng Hao

    Published 2025-05-01
    “…Furthermore, the life probability density expression and reliability expression for the anchor cable were formulated. …”
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  18. 118

    THE RISK FACTORS AND EVALUATION CRITERIA FOR PROGRESSION OF ATHEROSCLEROSIS IN ONE YEAR POST CORONARY BYPASS by A. V. Bezdenezhnykh, A. N. Sumin, Ya. V. Kazachek, A. V. Osokina, N. V. Kondrikova, Yu. V. Bayrakova, S. V. Ivanov, O. L Barbarash

    Published 2017-06-01
    “…The relation of possible factors to probaility of  on-coronary atherosclerosis progression was evaluated in logistic regression model.Results. Levels of the total cholesterol (TC) and low density lipoproteides cholesterol (LDL-C) were higher in patients with progression of atherosclerosis. …”
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  19. 119

    Model of Parametric Reliability of Woodworking Machine Tools by Lidiia Dziuba, Mariia Pylypchuk, Oksana Chmyr, Roman Pavliuk

    Published 2025-02-01
    “…The operating time intervals for woodworking machines between parametric failures were also evaluated. The probabilities of failure-free operation were calculated by considering the alpha probability density function for operating time intervals to failure of woodworking machine tools. …”
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  20. 120