Showing 12,081 - 12,100 results of 13,904 for search '"estimator"', query time: 0.08s Refine Results
  1. 12081

    Automated Analysis of Service Life of Air-Lines of the Electricity Transmission of Electric Power Systems by E. M. Farhadzadeh, A. Z. Muradaliyev, S. A. Abdullayeva, A. A. Nazarov

    Published 2021-10-01
    “…It is shown that it unacceptable to use the estimates of the relative number of overhead power transmission lines, the service life of which exceeds the calculated one, for comparison since it causes a great risk of an erroneous decision. …”
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  2. 12082

    Gasoline Direct Injection Engine Emissions of OC and EC: Laboratory Comparisons with Port Fuel Injection Engine by Jie Zhang, John Liggio, Tak W. Chan, Lin Huang, Jeffrey R. Brook

    Published 2022-05-01
    “…Carbonaceous particles emitted from the vehicles were collected on quartz filters and analyzed using three different thermal optical protocols to assess the sensitivity of organic carbon (OC) and elemental carbon (EC) emission estimates to the methods, showing OC obtained by the IMPROVE and EC by the NIOSH protocol was the lowest. …”
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  3. 12083

    New insights into the stipitate hydnoid fungi Sarcodon, Hydnellum, and the formerly informally defined Neosarcodon, with emphasis on the edible species marketed in Southwest China by Di Wang, Hui Feng, Jie Zhou, Tian-Hai Liu, Zhi-Yuan Zhang, Ying-Yin Xu, Jie Tang, Wei-Hong Peng, Xiao-Lan He

    Published 2024-03-01
    “…Abstract Sarcodon and Hydnellum are two ectomycorrhizal genera of important ecological and economic value in Southwest China, and they are common in the free markets in this region. It was estimated that more than 1,500 tonnes of them were sold as edible per year, but there was little information about the taxonomic placements of these edible mushrooms sold in the markets. …”
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  4. 12084

    Geospatial digital mapping of soil organic carbon using machine learning and geostatistical methods in different land uses by Yahya Parvizi, Shahrokh Fatehi

    Published 2025-02-01
    “…The spherical variogram model with MAE = 0.41 best fits to interpolate and map SOC using ordinary kriging in different land uses. The LAM method was estimated wider range of the SOC change (SOC = 0.18–4.82%) among different simulation model. …”
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  5. 12085

    The economic burden of Lyme disease and the cost-effectiveness of Lyme disease interventions: A scoping review. by Stephen Mac, Sara R da Silva, Beate Sander

    Published 2019-01-01
    “…Six studies assessed economic burden from a societal perspective and estimated significant annual national economic impact of: 735,550 USD for Scotland (0.14 USD per capita, population = 5.40M), 142,562 USD in Sweden (0.014 USD per capita, 9.96M), 40.88M USD in Germany (0.51 USD per capita, 80.59M), 23.12M USD in the Netherlands (1.36 USD per capita, 17.08M), and up to 786M USD in the US (2.41 USD per capita, 326.63M).…”
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  6. 12086

    Monitoring and assessment of a eutrophicated coastal lake using multivariate approaches by U.G. Abhjna

    Published 2016-05-01
    “…Thus the present study could estimate the effectiveness of multivariate statistical approaches for assessing water quality conditions in lakes.…”
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  7. 12087

    Current challenges and implications for dengue, chikungunya and Zika seroprevalence studies worldwide: A scoping review. by Camille Fritzell, Dominique Rousset, Antoine Adde, Mirdad Kazanji, Maria D Van Kerkhove, Claude Flamand

    Published 2018-07-01
    “…<h4>Background</h4>Arboviral infections are a public health concern and an escalating problem worldwide. Estimating the burden of these diseases represents a major challenge that is complicated by the large number of unapparent infections, especially those of dengue fever. …”
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  8. 12088

    Implementation of Uterine Artery Doppler Scanning: Improving the Care of Women and Babies High Risk for Fetal Growth Restriction by Emmanuel Ekanem, Faris Karouni, Emmanuoil Katsanevakis, Habiba Kapaya

    Published 2023-01-01
    “…The Royal College of Obstetricians and Gynaecologists (RCOG) defines SGA as an estimated fetal weight (EFW) or abdominal circumference (AC) less than the 10th centile. …”
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  9. 12089

    Evaluation of Zenith Tropospheric Delay Derived from Ray-Traced VMF3 Product over the West African Region Using GNSS Observations by Samuel Osah, Akwasi A. Acheampong, Collins Fosu, Isaac Dadzie

    Published 2021-01-01
    “…However, if for reasons like poor internet connectivity, equipment failure, and power outages, the IGS station is inaccessible or malfunctioning, and gaps are created in the data archive resulting in degrading the quality of the ZTD and precipitable water vapour (PWV) estimation. To address this challenge as a means of providing an alternative data source to improve the continuous availability of ZTD data and as a backup data in the event that the IGS site data are missing or unavailable in West Africa, this paper compares the sitewise operational Vienna Mapping Functions 3 (VMF3) ZTD product with the IGS final ZTD product over five IGS stations in West Africa. …”
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  10. 12090

    Urban-Rural Dimension of Falls and Associated Risk Factors among Community-Dwelling Older Adults in West Java, Indonesia by Susiana Nugraha, Sabarinah Prasetyo, Indri Hapsari Susilowati, Tri Budi W. Rahardjo

    Published 2021-01-01
    “…Falls are one of the common problems among older adults; it is estimated that 684,000 fatal cases of falls occur every year. …”
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  11. 12091

    AN INVESTIGATION ON THE EFFECTIVE PARAMETERS OF LOOSE SANDS LIQUEFACTION POTENTIAL USING IMPROVED HYPERCUBE SAMPLING METHOD by S. Golmoghani Ebrahimi, A. Noorzad, H. Javaheri Koupaei

    Published 2024-12-01
    “…The results show that the proposed approach is a favorable and useful tool for the reliability analysis of liquefaction potential estimations. Sensitivity analysis based on the coefficient of variation on a wide range of liquefaction and non-liquefaction case histories illustrates that the variability of soil parameters and earthquake loading can affect the probability of liquefaction. …”
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  12. 12092

    Experimental Approach for the Evaluation of the Performance of a Satellite Module in the CanSat Form Factor for In Situ Monitoring and Remote Sensing Applications by Juan Sebastián Rodríguez, Andrés Yarce Botero, Diego Valle, Julián Gálvez- Serna, Francisco Botero

    Published 2021-01-01
    “…This experiment’s interest measured thermodynamic variables and the concentration of pollutants in the stratosphere to corroborate the operating ranges planned in the above experiments using on-flight conditions and estimate the TLR (technology readiness level) of future prototypes.…”
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  13. 12093

    Comparing growth velocity of HIV exposed and non-exposed infants: An observational study of infants enrolled in a randomized control trial in Zambia. by Obvious Nchimunya Chilyabanyama, Roma Chilengi, Natasha Makabilo Laban, Masuzyo Chirwa, Michelo Simunyandi, Luiza Miyanda Hatyoka, Innocent Ngaruye, Najeeha Talat Iqbal, Samuel Bosomprah

    Published 2021-01-01
    “…We defined linear growth velocity as the rate of change in height and estimated linear growth velocity as the first derivative of the mixed effect model with fractional polynomial transformations and, thereafter, used the second derivative test to determine the peak height and age at peak heigh.…”
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  14. 12094

    A Semianalytical Production Prediction Model and Dynamics Performance Analysis for Shale Gas Wells by Yingying Xu, Xiangui Liu, Zhiming Hu, Xianggang Duan, Jin Chang

    Published 2021-01-01
    “…The findings of this study can help for better ensuring the prediction accuracy of the estimated ultimate recovery and understanding the main influencing factors of the dynamic performance of gas wells so as to provide a theoretical reference for production optimization and development plan formulation of the shale gas reservoirs.…”
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  15. 12095
  16. 12096

    Adverse childhood experiences and perceived body size across the life course: a longitudinal study using data from the Canadian Longitudinal Study on Aging (CLSA) by Jean-Eric Tarride, Laura N Anderson, Lauren Griffith, Andrea Gonzalez, Vanessa De Rubeis

    Published 2025-01-01
    “…Multinomial logistic regression was used to estimate ORs and 95% CIs for the association between ACEs and perceived body size trajectories. …”
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  17. 12097

    Leptonic dipole operator with $$\Gamma _2$$ Γ 2 modular invariance in light of Muon $$(g-2)_\mu $$ ( g - 2 ) μ by Takaaki Nomura, Morimitsu Tanimoto, Xing-Yu Wang

    Published 2024-12-01
    “…Supposing the phase of our model parameter $$\delta _{\alpha }$$ δ α for the electron to be of order one, we have estimated the upper-bound of $$\mathcal {B}(\mu \rightarrow e \gamma )$$ B ( μ → e γ ) , which is at most $$10^{-21}-10^{-20}$$ 10 - 21 - 10 - 20 . …”
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  18. 12098

    Generalization of stochastic mortality models to improve mortality prediction in life insurance and pension funds by Shirin Shoaee, Mohammad Mehdi Gholi Keshmarzi

    Published 2023-09-01
    “…The purpose of this study is to generalize static stochastic mortality models to dynamic stochastic mortality models and to predict mortality rates based on the generalization of stochastic mortality models by the Cox-Ingersoll-Ross (CIR) process and to compare the results with each other.Methodology: In this research, two suggestions are presented: the first idea is to provide a dynamic correction method to increase the prediction accuracy using the CIR process and the second idea is to examine the out-of-sample validation method.Findings: In this study, using the out-of-sample validation method, the force of mortality from the best models selected from the two famous mortality model families (Lee-Carter and Cairns, Blake and Dowd (CBD)) is compared with the results of the generalized model. After estimating the parameters of the studied models and calculating the prediction of the mortality rates, by calculating the mean absolute error and root mean squares error of prediction, it is determined that the generalization of stochastic mortality models by the CIR process performs much better than static mortality models. …”
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  19. 12099

    Male involvement in prevention of mother-to-child transmission of HIV, and its association with knowledge and residence in Ethiopia: a systematic review and meta-analysis by Mastewal Arefaynie, Yitayish Damtie, Bereket Kefale, Melaku Yalew, Bezawit Adane, Habtamu Shiferaw, Yesuf Ahemed, Abel Shiferaw, Tenaw Yimer, Hasab Tibebu

    Published 2024-09-01
    “…Random effects-model was applied to estimate the pooled effect. To minimize random variations among primary studies, sub-group analysis and meta-regression ana­lysis were performed. …”
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  20. 12100

    Generating evidence on screening, diagnosis and management of non-communicable diseases during pregnancy; a scoping review of current gap and practice in India with a comparison of... by Theophilus Lakiang, Sonali Abner Daniel, Kauma Kurian C, Minashree Horo, Shumayla Shumayla, Sunil Mehra

    Published 2021-01-01
    “…<h4>Background</h4>Children born to high-risk pregnancies are more likely to experience adverse health outcomes later in life. As estimated, 15% of all pregnancies are at risk of various life-threatening conditions leading to adverse maternal and foetal outcomes. …”
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