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Journal articles on the topic 'Coefficient of quantity proportion'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Tu, Qunzi, Yongwen Yang, Hanying Huang, Lu Li, Shanbai Xiong, and Siming Zhao. "Quantity Prediction of Mixed Freshwater Fish Based on Passive Underwater Acoustic Signals." Transactions of the ASABE 63, no. 6 (2020): 1805–11. http://dx.doi.org/10.13031/trans.13495.

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HighlightsThe use of passive underwater acoustic technology to estimate the species and quantity of freshwater fish provides a theoretical basis for effectively estimating the quantity of freshwater aquaculture.Mixed proportion recognition models for breams and crucians were built using probabilistic neural network (PNN) and support vector machine (SVM), and the influences of different super-parameters on the recognition rate were analyzed. The results showed that the classification model established with SVM after equiripple filtering was best.Mixed quantity prediction models for breams and c

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Tilahun, Meseret, Nabi Husein, and Dawit Abate. "Effects of Seed Proportion on Forage Yield of Greenleaf Desmodium (<i>Desmodium intortum)</i> and Guinea Grass (<i>Panicum maximum)</i> Mixture at Adami Tulu Agricultural Research Center." American Journal of BioScience 12, no. 4 (2024): 110–17. http://dx.doi.org/10.11648/j.ajbio.20241204.12.

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Establishing of grass-legume pastures is one of the recognized strategies for enhancing both quantity and quality of feed resources. Therefore, determining the impact of seed proportion on the nutritional qualities and forage yield of combinations of guinea grass and green leaf desmodium is the goal of this study. A Randomized Complete Block Design (RCBD) with three replications was used to arrange five seed proportions of desmodium and guinea grass. Analysis of variance revealed that variations in treatments have significant differences (p&lt;0.05) on panicum heights, desmodium tillers, a

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Yao, Shao Wei, Chang Rui Wang, and Zhen Guo Gao. "The Research on Dense Packing Concrete Mix Proportion." Advanced Materials Research 287-290 (July 2011): 1043–47. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.1043.

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According to the postulation on dense packing of aggregates, the paper discusses the dense packing method of various aggregates and its coefficients, and offers the mix proportion design method of concrete. The research results indicate that using method of the mix proportion design based on the theory on dense packing of aggregates, aggregates can play a maximum role, especially the micro-aggregate effect of the fly ash, then the compactness of concrete is raised effectively, the quantity of cement is reduced and the endurance of concrete is improved.

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Li, Weiwen, Yongcong Liu, Jie Li, Longfang Ye, and Qing Huo Liu. "Modal Proportion Analysis in Antenna Characteristic Mode Theory." International Journal of Antennas and Propagation 2019 (February 13, 2019): 1–10. http://dx.doi.org/10.1155/2019/7069230.

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The characteristic mode theory (CMT) can provide physically intuitive guidance for the analysis and design of antenna structures. In CMT applications, the antenna current distribution is decomposed into the superposition of multiple characteristic modes, and the proportion of each current mode is characterized by the modal weighting coefficient (MWC). However, different characteristic currents themselves have different radiation efficiencies reflected by the eigenvalues. Therefore, from the perspective of the contribution to the radiation field, the modal proportion should be more accurately d

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Mu, Jie, Miansong Huang, Xiaoli Hao, Xiaolan Chen, Haijun Yu, and Binbin Wu. "Study on Waterlogging Reduction Effect of LID Facilities in Collapsible Loess Area Based on Coupled 1D and 2D Hydrodynamic Model." Water 14, no. 23 (2022): 3880. http://dx.doi.org/10.3390/w14233880.

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The accurate evaluation method of LID toward the attenuation of urban flood is still a hot issue. This paper focuses on a coupled 1D and 2D hydrodynamic model, investigating the model parameters set in a collapsible loess area, and the changes in the surface runoff, waterlogged area, and drainage network indicators under different rainfall patterns. The results show that the coupled model can effectively simulate the effect of LID facilities under unaltered and retrofitted conditions. It is found that the infiltration parameters in a collapsible loess area are higher than in other eastern citi

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Kayode-Ojo, N., and J. O. Odemerho. "The Particle Size Distribution of Laterite Soil at Ekosodin, Benin City, Nigeria." Journal of Applied Sciences and Environmental Management 27, no. 3 (2023): 519–23. http://dx.doi.org/10.4314/jasem.v27i3.15.

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The laterite soil particle-size distribution provides a preliminary knowledge of the rate of failure and the strength of soil to resist load pressure and subsequent susceptibility to gully erosion. This study was carried out to determine the particle size distribution of laterite soil at Ekosodin, Benin City, Nigeria using appropriate standard methods. This was achieved by collecting a total of twenty soil samples from the gully zone of Ekosodin and carrying out sieve and hydrometer analyses on the recovered soil. The average percentage weight of fines smaller than the following grain diameter

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Han, Shaoyong, Jianli Luo, Letian Zeng, Cuihua Xie, Guan Yang, and Jingchun Zhan. "FROM THE PERSPECTIVE OF EMOTIONAL LABOR AND WORK PRESSURE, THIS PAPER DISCUSSES HOW JOINT ORDERING STRATEGY CAN IMPROVE THE PSYCHOLOGICAL SAFETY OF SUPPLY CHAIN MEMBERS." International Journal of Neuropsychopharmacology 25, Supplement_1 (2022): A34—A35. http://dx.doi.org/10.1093/ijnp/pyac032.048.

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Abstract Background It is of great economic significance to optimize the total cost of supply chain and improve the performance of supply chain. Information sharing can improve supply chain performance. A probabilistic demand system with one seller and one buyer studied by scholars can find that compared with the traditional decentralized system, the quantity coordination strategy can improve the performance of the supply chain. However, supply chain members are reluctant to provide private cost information because their customers may abuse this information, which will seriously affect their p

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Yamaguchi, Yoshiyuki, and Yutaka Asako. "Effect of Partition Wall on Natural Convection Heat Transfer in a Vertical Air Layer." Journal of Heat Transfer 123, no. 3 (2001): 441–49. http://dx.doi.org/10.1115/1.1370515.

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Three-dimensional natural convection heat transfer characteristics in a vertical air layer partitioned into cubical enclosures by partition walls of finite thermal conductivity and finite thickness were obtained numerically. The air layer is differentially heated from each surface. In this work, the analyses were performed using finite thickness and finite conductivity of the partition wall for Ra=104 and 105, and for wide range of the thickness and the conductivity of the partition wall. The results were presented in the form of overall convection and total heat transfer coefficient. From the

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9

Żórawski, Wojciech, Anna Góral, Medard Makrenek, Dominika Soboń, Anna Trelka, and Marek Bara. "Optimization of Mechanical Properties of Cr3C2-Ni20Cr/Graphite Cold Sprayed Coatings." Materials 14, no. 13 (2021): 3458. http://dx.doi.org/10.3390/ma14133458.

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This study analyzed the mechanical properties of cold-sprayed Cr3C2-25(Ni20Cr) blended with Ni-graphite as a solid lubricant deposited on 7075 aluminum alloy substrate. To optimize the coating properties, different sets of parameters (graphite content in feedstock, process gas composition, spraying distance, and traverse gun speed) were tested in the frame of the Taguchi experiment. The cold-sprayed coatings were evaluated for their chromium carbide and graphite content, hardness, and coefficient of friction. Analysis of the microstructure of the deposited coatings revealed that graphite as a

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Wang, Liang, Mingdong Ji, Kang Wu, Xudong Weng, and Haijun Li. "Design and Performance Evaluation of a Feed Distribution Device in the Small-Scale Pneumatic Conveying Feeder for Recirculating Aquaculture Systems." Fishes 10, no. 6 (2025): 255. https://doi.org/10.3390/fishes10060255.

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Due to its good adaptability, the pneumatic conveying feeder has been widely developed and applied in recirculating aquaculture systems (RASs). Its important performances include the integrity of feed pellets and the feeding accuracy. The aim of this study was to design and evaluate a feed distribution device for a small-scale pneumatic conveying feeder. A cylindrical hopper with a feed capacity of 4 kg and a feed distribution device were designed based on theoretical calculations. The motion and force of feed pellets during the distribution process were studied using the discrete element meth

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Ding, Hong Xia, Chun Tao Wang, Bin Ge, and Yun Sheng Li. "Study on Chloride Penetration Resistance of High Volume Slag Powder Concrete." Applied Mechanics and Materials 584-586 (July 2014): 1005–10. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.1005.

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The influences of Portland cement substituted by slag powder in a high proportion (50% and 70%) on the chloride penetration resistance of concrete were studied. The results show that: the penetrability of Portland cement concrete reduced by one grade if 0.5% water reducer is added, but the water binder ratio is not the decisive factor for the permeability. There is a negative correlation between 6h electric flux and compressive strength only when concrete with same cementing materials. High volume slag powder concrete has excellent resistance to chloride ion permeability, which declines furthe

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Wang, Zheng-Xin. "A GM(1,N)-based economic cybernetics model for the high-tech industries in China." Kybernetes 43, no. 5 (2014): 672–85. http://dx.doi.org/10.1108/k-10-2013-0227.

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Purpose – The purpose of this paper is to propose an economic cybernetics model based on the grey differential equation GM(1,N) for China's high-tech industries and provide the necessary support to assist high-tech industries management departments with their policy making. Design/methodology/approach – Based on the principle of grey differential equation GM(1,N), the grey differential equations of five high-tech industries in China are established using the net fixed assets, labor quantity and patent application quantity as cybernetics variables. After the discretization and first-order subtr

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13

Bezgodov, Andrey, and Konstantin Maron. "Growing lupine and vetch in mixed crops." Acta Biologica Sibirica 8 (August 26, 2022): 199–209. https://doi.org/10.5281/zenodo.7700629.

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This paper aimed to determine the efficiency of growing spring vetch and narrowleaf lupine in mixed crops to produce grain forage. Further, the paper evaluated the influence of seeding quantities, component ratios, and weather conditions on yield and reaction in agrophytocenosis. Field tests and results processing complied with the appropriate methods. The paper examined weather conditions, quality of grain forage, yield, land equivalent ratio, competitiveness, and aggressivity of crops. Land equivalent ratio (LER) reached 1.41 to 1.77 when planting mixed legume grains at seeding quantity of 0

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Chen, Juan, Yinger Deng, Yong Chen, et al. "Distribution Patterns of Microplastics Pollution in Urban Fresh Waters: A Case Study of Rivers in Chengdu, China." International Journal of Environmental Research and Public Health 19, no. 15 (2022): 8972. http://dx.doi.org/10.3390/ijerph19158972.

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Microplastics are widely found in oceans and rivers. In China, the research on microplastic pollution in inland urban fresh waters of China is insufficient. We studied microplastics in the surface waters of urban rivers in Chengdu, which is the largest city in western China. The concentration of microplastics in the analysis environment ranged from 5.00 to 10.5 items/L, and the average quantity was 8.82 items/L. The majority of the microplastics were transparent and took the form of fragments, particles, and fibers. Polyethylene terephthalate (PET) and polyamide (PA) were the dominant polymer

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Hössjer, Ola, Bengt Eriksson, Kajsa Järnmalm, and Esbjörn Ohlsson. "Assessing Individual Unexplained Variation in Non-Life Insurance." ASTIN Bulletin 39, no. 1 (2009): 249–73. http://dx.doi.org/10.2143/ast.39.1.2038064.

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AbstractWe consider variation of observed claim frequencies in non-life insurance, modeled by Poisson regression with overdispersion. In order to quantify how much variation between insurance policies that is captured by the rating factors, one may use the coefficient of determination, R2, the estimated proportion of total variation explained by the model. We introduce a novel coefficient of individual determination (CID), which excludes noise variance and is defined as the estimated fraction of total individual variation explained by the model. We argue that CID is a more relevant measure of

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Hao, Yan Hong, Ling Mei Wang, and Li Xia Qiu. "System Dynamics Simulation and Adjustment on Coal Resource Utilization Based on Circular Economy." Advanced Materials Research 524-527 (May 2012): 3190–201. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.3190.

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Coal resource utilization system, based on circular economy, is an opening, complex and time-varying system. It composes of subsystems such as industry, population, economy and environment etc. Taking the industry subsystem as prime object, this paper builds its system dynamics model adopting the system dynamics method based on full life cycle. The adjustment parameters such as utilization rate of by-product of mining, the proportion of coal use in each industry and waste recycling rate etc. were confirmed. As a case of coal utilization system being designed, thirteen development projects belo

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17

YOUSAFZAI, ISRARULLAH, and R. A. YELEDHALLI. "Export competitiveness and direction of trade of almonds from Afghanistan." Journal of Farm Sciences 36, no. 04 (2023): 398–402. http://dx.doi.org/10.61475/jfs.2023.v36i4.16.

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The study aims to reveal the competitiveness and direction of trade of almonds from Afghanistan. The data was analysed for Nominal Protection Coefficient, Revealed Comparative Advantage (RCA) and Markov chain analysis to understand the transition probability of almonds between different countries in the context of quantity. The secondary data for almonds was analyzed for the period of 2006-07 to 2020-21. The results indicated that the Afghanistan almonds were very responsive to the share of exports of the country. During the period considered under the study, lower nominal protection coefficie

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Mohammadein, S. A., and K. G. Mohamed. "Growth of a vapour bubble in a viscous, superheated liquid in two-phase flow." Canadian Journal of Physics 93, no. 7 (2015): 769–75. http://dx.doi.org/10.1139/cjp-2014-0117.

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This paper presents the growth of a vapour bubble in a viscous, superheated liquid. The problem is solved analytically using the Plesset and Zwick method after modifying the pressure difference to include a multiple quantity of the initial pressure difference, its coefficient b giving the necessary condition for the growth process. Relations between the initial and final times in terms of the given physical parameters are derived. The bubble radius is proportional to the thermal diffusivity, the initial pressure difference and its coefficient, while it is inversely proportional to the surface

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19

Bakoyannis, Giorgos, Ying Zhang, and Constantin T. Yiannoutsos. "Semiparametric regression and risk prediction with competing risks data under missing cause of failure." Lifetime Data Analysis 26, no. 4 (2020): 659–84. http://dx.doi.org/10.1007/s10985-020-09494-1.

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Abstract The cause of failure in cohort studies that involve competing risks is frequently incompletely observed. To address this, several methods have been proposed for the semiparametric proportional cause-specific hazards model under a missing at random assumption. However, these proposals provide inference for the regression coefficients only, and do not consider the infinite dimensional parameters, such as the covariate-specific cumulative incidence function. Nevertheless, the latter quantity is essential for risk prediction in modern medicine. In this paper we propose a unified framework

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20

Song, Junnian, Yang Pu, Wei Yang, and Jingzheng Ren. "Highlighting Regional Energy-Economic-Environmental Benefits of Agricultural Bioresources Utilization: An Integrated Model from Life Cycle Perspective." Sustainability 11, no. 13 (2019): 3743. http://dx.doi.org/10.3390/su11133743.

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Bioenergy utilization is ambitiously being promoted, attributed to its renewable and clean natures. China’s provincial regions have distinct levels of agricultural development, and thus, different levels of agricultural bioresources (ABs) potentials. In this study, an integrated assessment model is developed to quantify the 3E benefits from the life cycle perspective, covering the whole process of energy-oriented ABs utilization. Integrating nine types of ABs and four types of energy conversion modes (direct combustion power generation, gasification power generation, briquette fuel and bioetha

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Garrido, Javier, and José A. Manzanares. "Thomson/Joule Power Compensation and the Measurement of the Thomson Coefficient." Materials 17, no. 18 (2024): 4640. http://dx.doi.org/10.3390/ma17184640.

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The energy transported by the electric current that circulates a thermoelectric element (TE) varies with position due to the Joule and Thomson effects. The Thomson effect may enhance or compensate the Joule effect. A method for measuring the Thomson coefficient of a TE is presented. This method is based on the total compensation of the Joule and Thomson effects. The electric current then flows without delivering power to the TE or absorbing power from it. For a TE, the global Thomson/Joule compensation ratio Φ¯T/J is defined as the ratio of the power absorbed by the current due to the Thomson

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22

Ma, Shibang, Congzheng Zhang, Liang Li, and Yinhai Yang. "Microstructure and Properties of CoCrFeNiMnTix High-Entropy Alloy Coated by Laser Cladding." Coatings 14, no. 5 (2024): 620. http://dx.doi.org/10.3390/coatings14050620.

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In this study, laser cladding of CoCrFeNiMnTix (x is the proportion of the mass of a material, x = 0.0, 0.2, 0.4, 0.6, 0.8) high-entropy alloy (HEA) composite powder coating on 45 steel substrate was studied by using the method of preplaced powder. The phase composition, morphology, microhardness, corrosion resistance and wear properties of CoCrFeNiMnTix high entropy alloy were analyzed by XRD, SEM, microhardness tester, electrochemical workstation and reciprocating friction wear tester, respectively. The influences of Ti concentration on structure and properties of CoCrFeNiMn HEA laser claddi

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Jiancheng, Yan, Liu Yong, and Gao Junhai. "Research on Identification of Land Damage Types and Analysis of Damage Process in Opencast Coal Mine of Steppe." E3S Web of Conferences 194 (2020): 04032. http://dx.doi.org/10.1051/e3sconf/202019404032.

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Aiming at the situation of land damage caused by large Opencast Coal Mine in steppe, this paper took Borshil Opencast Coal Mine in Hulunbuir as the research object, identified the types of land damage caused by Opencast Coal Mine in the last 20 years, analysed the space-time sequence and quantity of land damage process, and calculated the coefficient of land damage based on the types of damage. We found that, since 1998 to 2018, the area of land improper excavation and land cover occupation increased year by year in Borshil Opencast Coal Mine, the area of land improper excavation changed incon

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Oyibo, Muazu, and Ayegba Abdullahi. "Assessing the Monthly Variation of Reference Evapotranspiration of Nsukka, Enugu State, Nigeria." International Journal of Trend in Scientific Research and Development 2, no. 3 (2018): 1323–28. https://doi.org/10.31142/ijtsrd11409.

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The application of suitable water quantity to the crops in irrigation farming is very important for effective crop yields as less or more than the required quantity of water when applied will affect the crop output negatively. The objective of this work was to determine the monthly reference Evapotranspiration of Nsukka, Enugu state of Nigeria, as well as how its variation is affected by temperature change. This work made use of Hargreaves Samani model of evapotranspiration prediction, using the data of minimum and maximum temperature obtained from NASA's earthdata database. It was shown f

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Krstic, Gorana. "Why income inequality is so high in Serbia: Empirical evidence and a measurement of the key factors." Ekonomski anali 61, no. 210 (2016): 23–46. http://dx.doi.org/10.2298/eka1610023k.

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We analyse the extent and evolution of income inequality in Serbia and examine factors that may have contributed to the high and rising inequality. Specifically, using data from the 2013 Survey of Income and Living Conditions, we focus on two issues: the effect of the quantity and quality of household members? employment on the earnings of low-wage workers, and the role of taxes and social transfers in redistributing income from the betteroff to the poor. The results suggest that income inequality, measured by the Gini coefficient, has significantly increased in Serbia over the period of econo

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Panah, Manouchehr, AR Khorshidvand, SM Khorsandijou, and Mohsen Jabbari. "Axisymmetric nonlinear behavior of functionally graded saturated poroelastic circular plates under thermo-mechanical loading." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 236, no. 8 (2021): 4313–35. http://dx.doi.org/10.1177/09544062211051684.

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In functionally graded saturated poroelastic circular plates with immovable simply supported and clamped rims, the axisymmetric nonlinear bending under transverse thermo-mechanical loading has been parametrically studied and compared with the axisymmetric postbuckling and nonlinear bending under thermal loading. Based on the classical plate theory, Love–Kirchhoff hypotheses and Sander’s assumptions, the general coupled nonlinear radial and transverse equilibrium equations, central continuity, symmetry and boundary conditions has been derived in ordinary and state-spatial forms. The correspondi

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Oliinyk, O. O., and A. V. Neverkovets. "CORPORATE VOLUNTEERING IN THE CONTEXT OF CORPORATE SOCIAL RESPONSIBILITY." THEORETICAL AND APPLIED ISSUES OF ECONOMICS, no. 42 (2021): 92–101. http://dx.doi.org/10.17721/tppe.2021.42.8.

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he volunteering essence and its types were considered in the article. Defined, the multidirectional structures and multifunctionality of volunteering allow us to confirm its economic, environment and social value is being increased. In this work was discovered the connection between country’s economic growth which basic evaluating ratio serves as the gross national income per capita and population proportion that participated in volunteer activities. The Pearson correlation coefficient was calculated using two investigated indicators by the instance of 12 Europe countries in 2019. We gained a

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Arenholt, Louise Thomsen Schmidt, Katrina Kaestel Aaroe, Kanutte Norderud, et al. "Cervical lesion proportion measure using a digital gridded imaging technique to assess cervical pathology in women with genital schistosomiasis." PLOS Neglected Tropical Diseases 16, no. 7 (2022): e0009995. http://dx.doi.org/10.1371/journal.pntd.0009995.

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Female genital schistosomiasis (FGS) is characterized by a pattern of lesions which manifest at the cervix and the vagina, such as homogeneous and grainy sandy patches, rubbery papules in addition to neovascularization. A tool for quantification of the lesions is needed to improve FGS research and control programs. Hitherto, no tools are available to quantify clinical pathology at the cervix in a standardized and reproducible manner. This study aimed to develop and validate a cervical lesion proportion (CLP) measure for quantification of cervical pathology in FGS. A digital imaging technique w

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Yang, Yaohong, Ying Liu, Jing Dai, and Yi Zeng. "Cost-Sharing Mechanism of Water Pollution Control in Main and Subbasins Based on Stackelberg Game Model." Mathematical Problems in Engineering 2022 (June 2, 2022): 1–14. http://dx.doi.org/10.1155/2022/6559840.

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Faced with goal to improve ecological environment, water pollution treatment in river basins has been one of research focuses in recent years. Based on the basic characteristics of the river basins including main stream and multiple or multilevel tributaries, considering competitive relationship and cost-sharing mechanism of water pollution control, a differential game model of pollution elimination including main stream government and two tributary governments was constructed, and the equilibrium strategies under two situations of noncooperation mechanism and cost-sharing mechanism were discu

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Cheng, Qiang, Gun Huang, Zhiqiang Li, Jie Zheng, and Qinming Liang. "Effect of Coal Particle Breakage on Gas Desorption Rate during Coal and Gas Outburst." Applied Sciences 14, no. 1 (2024): 469. http://dx.doi.org/10.3390/app14010469.

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The gas contained in coal plays a crucial role in triggering coal and gas outbursts. During an outburst, a large quantity of gas originally absorbed by coal is released from pulverized coal. The role this part of the gas plays in the process of coal and gas outbursts has not been clearly elucidated yet. Therefore, investigating the changes in gas desorption rate from coal particles of different sizes could provide some meaningful insights into the outburst process and improve our understanding of the outburst mechanism. First, combining the diffusivity of coal of different particle sizes and t

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Liu, Ziyi, Xinyao Ma, Lihui Hu, et al. "Information in Streetscapes—Research on Visual Perception Information Quantity of Street Space Based on Information Entropy and Machine Learning." ISPRS International Journal of Geo-Information 11, no. 12 (2022): 628. http://dx.doi.org/10.3390/ijgi11120628.

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Urban street space is a critical reflection of a city’s vitality and image and a critical component of urban planning. While visual perceptual information about an urban street space can reflect the composition of place elements and spatial relationships, it lacks a unified and comprehensive quantification system. It is frequently presented in the form of element proportions without accounting for realistic factors, such as occlusion, light and shadow, and materials, making it difficult for the data to accurately describe the complex information found in real scenes. The conclusions of related

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SHAH, AJIT. "The importance of the socioeconomic status of countries for mental disorders in old age: development of an epidemiological transition model." International Psychogeriatrics 19, no. 4 (2007): 785–87. http://dx.doi.org/10.1017/s1041610207005479.

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The prevalence of a disorder is a function of the incidence of the disorder and the duration of the illness (which may remit spontaneously, by treatment or death). The socioeconomic status of societies may influence the incidence and duration of mental illnesses in old age by influencing life expectancy and availability of appropriate healthcare services and treatments (Suh and Shah, 2001). The relationship between a proxy measure of the socioeconomic status (per capita gross national domestic product (GDP)) and (i) the life expectancy, (ii) child mortality rates and (iii) proxy measures of th

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Ghalib, Arkan Daffa, D. Damayanti, and Widy Shity Nur Shava. "Pengaruh Produk Domestik Bruto dan Inflasi Terhadap Jumlah Uang Beredar (M1) di Indonesia Periode 1980 – 2020 Menurut Pendekatan Klasik." WACANA EKONOMI (Jurnal Ekonomi, Bisnis dan Akuntansi) 22, no. 2 (2023): 124–31. http://dx.doi.org/10.22225/we.22.2.2023.124-131.

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The The research aims to determine the effect of gross domestic product (GDP) and inflation on the total money supply (JUB) in Indonesia. This study uses timeseries data from 1980 to 2020 obtained from the Central Bureau of Statistics, and Bank Indonesia. This study uses a classical approach. The research was conducted using multiple linear regression. Hypothesis testing using the t test and f test is used to determine the feasibility of the model. The results of the analysis show that the Gross Domestic Product Variable (X1) partially has a positive and significant effect on the Money Supply

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Alit Karyawan Salain, I. Made, I. Nyoman Sutarja, and Teguh Arifmawan Sudhiarta. "Experimental study on the properties of highperformance concrete made with class C fly ash." MATEC Web of Conferences 276 (2019): 01014. http://dx.doi.org/10.1051/matecconf/201927601014.

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This experimental study presents the properties of highperformance concrete (HPC) made by partially replacing type I Portland cement (OPC) with class C fly ash (CFA). The purpose of this study is to examine, with hydration time, the development of the compressive strength, the splitting tensile strength and the permeability of HPC utilizing different quantity of CFA. Four HPC mixtures, C1, C2, C3, and C4, were made by utilizing respectively 10%, 20%, 30% and 40% of CFA as replacement of OPC, by weight. One control mixture, C0, was made with 0% CFA. The mix proportion of HPC was 1.00 binder: 1.

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Albiach, Remedios, Pedro Rojo, Sergio Lloret, Vicente Fajardo, Gloria Fayos, and Tatiana Montoya. "Ecotoxicological evaluation and characterization of sewage sludge and agri-food waste composts." Soil and Environment 42, no. 2 (2023): 130–39. http://dx.doi.org/10.25252/se/2023/242888.

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The expanding population is leading to a continuous rise in the quantity of generated waste. Due to this, there is a need to recycle the waste generated so that it can be reused. Composting is a highly attractive method to manage and recycle waste generated, both because of the ease of management and for the lower cost compared to other treatments. In this study, eight different combinations of waste with wastewater treatment plant (WWTP) sludge as the principal waste and other plant waste in different proportions (garden waste, grape stalks, forest waste, olive and almond tree pruning cutting

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Min, Haoling, Pinkun He, Chunlai Li, Libin Yang, and Feng Xiao. "The Temporal and Spatial Characteristics of Wind–Photovoltaic–Hydro Hybrid Power Output Based on a Cloud Model and Copula Function." Energies 17, no. 5 (2024): 1024. http://dx.doi.org/10.3390/en17051024.

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In a high proportion of wind–photovoltaic–hydro hybrid power systems, fluctuation and dispersion make it difficult to accurately quantify the output characteristics. Therefore, in this study, a cloud model and copula correlation coefficient matrix were constructed for a hybrid power generation system based on the output data. Multiple backward cloud transformation based on the sampling-with-replacement method was proposed to calculate the improved entropy and hyperentropy to analyze the fluctuation range and dispersion degree quantitatively. A similarity index was proposed to evaluate the simi

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Huang, Lichao, David A. Ratkowsky, Cang Hui, et al. "Inequality Measure of Leaf Area Distribution for a Drought-Tolerant Landscape Plant." Plants 12, no. 17 (2023): 3143. http://dx.doi.org/10.3390/plants12173143.

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Measuring the inequality of leaf area distribution per plant (ILAD) can provide a useful tool for quantifying the influences of intra- and interspecific competition, foraging behavior of herbivores, and environmental stress on plants’ above-ground architectural structures and survival strategies. Despite its importance, there has been limited research on this issue. This paper aims to fill this gap by comparing four inequality indices to measure ILAD, using indices for quantifying household income that are commonly used in economics, including the Gini index (which is based on the Lorenz curve

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Lu, Han, Luoya Hou, Weijiao Zhou, et al. "Trends, composition and distribution of nurse workforce in China: a secondary analysis of national data from 2003 to 2018." BMJ Open 11, no. 10 (2021): e047348. http://dx.doi.org/10.1136/bmjopen-2020-047348.

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ObjectivesGiven the increased ageing population and frequent epidemic challenges, it is vital to have the nurse workforce of sufficient quantity and quality. This study aimed to demonstrate the trends, composition and distribution of nurse workforce in China.DesignSecondary analysis using national public datasets in China from 2003 to 2018.Setting/participantsNational population, nurse workforce and physician workforce.Primary and secondary outcome measuresFrequency and proportion were used to demonstrate: (1) the longitudinal growth of nurse workforce; (2) the diversity of nurse workforce in

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Zhang, Lifeng. "Systematically Exploring Associations among Multivariate Data." Proceedings of the AAAI Conference on Artificial Intelligence 34, no. 04 (2020): 6786–94. http://dx.doi.org/10.1609/aaai.v34i04.6158.

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Detecting relationships among multivariate data is often of great importance in the analysis of high-dimensional data sets, and has received growing attention for decades from both academic and industrial fields. In this study, we propose a statistical tool named the neighbor correlation coefficient (nCor), which is based on a new idea that measures the local continuity of the reordered data points to quantify the strength of the global association between variables. With sufficient sample size, the new method is able to capture a wide range of functional relationship, whether it is linear or

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Yu, Jian Jun, and Qiang Qiang Zhu. "Due Date Model Build and Analysis Based on Multi-Vendors." Applied Mechanics and Materials 490-491 (January 2014): 1302–5. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.1302.

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The due date set is affected by the coordination and cooperation between enterprise and customers and due date requirement and sensitivity degreed of different types of customers are different. In order to analyze more complex situations, the problem and its model including two vendors, one manufacturers and consumers is studied in the paper. Firstly, the model is built and analyzed in view of the vendors, and the optimal due date is obtained after calculation. The analysis results show that there is not any relationship between the order function and the demand quantity, the demand quantity d

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Sinclair, A. T. "A re-interpretation of the definition of UT1." Symposium - International Astronomical Union 128 (1988): 39–40. http://dx.doi.org/10.1017/s0074180900119230.

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SummaryUniversal time is a commonplace quantity, and yet it has no generally accepted definition. The expression for sidereal time is often quoted as a definition, but this does not convey much meaning to the average person. Also sidereal time is measured from the equinox of date, and so involves the precession formulae of the stellar reference frame, and hence may not be ideal for other modern techniques of observation. Guinot (1979) has proposed a broad definition of UT1:“UT1 is an angle which is proportional to the sidereal rotation of the Earth, the coefficient of proportionality being cho

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Gouze, Philippe, Riad Hassani, Dominique Bernard, and Anne Coudrain-Ribstein. "Calcul de l'evolution de la permeabilite des reservoirs sedimentaries contenant des argiles; application a la zone de la faille de Bray (bassin de Paris)." Bulletin de la Société Géologique de France 172, no. 4 (2001): 427–36. http://dx.doi.org/10.2113/172.4.427.

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Abstract We propose a model for simulating the changes in porosity and permeability caused by hydrothermal diagenesis in sedimentary aquifer where salinity, temperature and fluid flow vary in space and time. Such modifications of the hydrodynamic properties of the medium are bounded to geochemical reactions and groundwater flow. Fluid velocity is particularly low in deep reservoirs (typically less than 1 m/year). Then, the local equilibrium simplification, which is justified by a set of world-wide data of the chemical composition of groundwater, can be implemented toward straightforward transi

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Horger, M., M. N. Vogel, R. Beschorner, et al. "T2 and DWI in Pilocytic and Pilomyxoid Astrocytoma with Pathologic Correlation." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 39, no. 4 (2012): 491–98. http://dx.doi.org/10.1017/s0317167100014013.

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Objective:To quantify and compare T2 signal and apparent diffusion coefficient (ADC) in pilocytic and pilomyxoid astrocytoma (PA and PMA) and correlate results with myxoid content.Methods:Echo-planar diffusion weighted images (DWI) and standard magnetic resonance imaging (MRI) findings were reviewed retrospectively in patients with PA (n=34) and PMA (n=8). Regions of interest (ROIs) were drawn on ADC maps within tumor parts with lowest ADC values. Apparent diffusion coefficient values in tumor were normalized to those in cerebrospinal fluid (ADC/CSF). The ratio of T2 signal intensity in solid

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Wilfinger, William W., Hamid R. Eghbalnia, Karol Mackey, Robert Miller, and Piotr Chomczynski. "Whole blood RNA extraction efficiency contributes to variability in RNA sequencing data sets." PLOS ONE 18, no. 11 (2023): e0291209. http://dx.doi.org/10.1371/journal.pone.0291209.

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Numerous methodologies are used for blood RNA extraction, and large quantitative differences in recovered RNA content are reported. We evaluated three archived data sets to determine how extraction methodologies might influence mRNA and lncRNA sequencing results. The total quantity of RNA recovered /ml of blood affects RNA sequencing by impacting the recovery of weakly expressed mRNA, and lncRNA transcripts. Transcript expression (TPM counts) plotted in relation to transcript size (base pairs, bp) revealed a 30% loss of short to midsized transcripts in some data sets. Quantitative recovery of

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Galimova, E. F., G. Kh Akhmadullina, K. V. Bulygin, K. S. Mochalov, and Sh N. Galimov. "Inhibin B and activin A in the pathogenesis of idiopathic male infertility." Kazan medical journal 96, no. 5 (2015): 749–52. http://dx.doi.org/10.17750/kmj2015-749.

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Aim. To assess the role of serum and ejaculate inhibin-activin status disorders in the development of reproductive disorders at idiopathic male infertility. Methods. The research includes data of laboratory and clinical examination of 82 infertile and 60 fertile men. Serum and semen levels of reproduction regulatory peptides inhibin B and activin A were determined using standard commercially available kits for enzyme-linked immunosorbent assay. Other parameters of ejaculate were also investigated. Results. In men with infertility of the unknown cause, sperm cell concentration was s

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Konečný, Zdeněk, and Marek Zinecker. "Measuring Risk Structure Using the Capital Asset Pricing Model." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 63, no. 1 (2015): 227–33. http://dx.doi.org/10.11118/actaun201563010227.

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This article is aimed at proposing of an inovative method for calculating the shares of operational and financial risks. This methodological tool will support managers while monitoring the risk structure. The method is based on the capital asset pricing model (CAPM) for calculation of equity cost, namely on determination of the beta coefficient, which is the only variable, that is dependent on entrepreneurial risk. There are combined both alternative approaches for calculation betas, which means, that there are accounting data used and there is distinguished unlevered beta and levered beta. Th

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Pérez, Miguel A., Gabriela P. Urrejola-Contreras, Judith Hernández, Pamela Silva, and Maximiliano Torres-Banduc. "Sex differences in upper and lower strength and their association with body composition among university students." Physical Activity and Nutrition 28, no. 3 (2024): 064–71. http://dx.doi.org/10.20463/pan.2024.0025.

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[Purpose] Sex strongly influences physical performance throughout adolescence, and excess fat mass is associated with several health and performance impairments. This study aimed to evaluate whether variations in strength between men and women dependent on lean mass and body fat content.[Methods] This cross-sectional, quasi-experimental, non-probabilistic study involved 44 university students (22 men and 22 women, aged 19–29). Handgrip strength (HGS) was measured using an adjustable handgrip dynamometer, body composition was assessed using bioimpedance, and countermovement jumps (CMJ) were mea

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Ago, Cadnel, Guowei Li, Jiantao Wu, and Nur Izzi Md Yusoff. "Feasibility Study of Using Hydrophobic Geopolymer-Based as Aggregate Substitution in Asphalt Mixture." Polymers 15, no. 14 (2023): 3077. http://dx.doi.org/10.3390/polym15143077.

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Hydrophobic aggregates have the great ability to prevent asphalt pavement roads from stripping-off of the asphalt in presence of water. In addition, they give the option to consume less asphalt and save cost. On the other hand, natural aggregates have been found to be non-renewable and rare. Geopolymer based artificial aggregates are great materials as they demonstrated to have exceptional features, such as high strength, superior durability, and greater resistance to fire exposure. In this study, a new hydrophobic geopolymer based aggregate has been produced with rice ash (RA) and fly ash as

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P.I, Ater, Ezihe J.A.C., and Chancha T.E. "EFFECT OF TRANSIT ROAD ROUTES ON PRODUCTIVITY AND QUALITY OF LIFE OF PERI-URBAN CROP FARMERS IN NORTH CENTRAL NIGERIA." International Journal of Agriculture, Environment and Bioresearch 08, no. 06 (2023): 25–44. http://dx.doi.org/10.35410/ijaeb.2023.5865.

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The research was carried out to assess the effect of transit road route on productivity and quality of life of peri-urban crop farmers in north central Nigeria. A multistage sampling technique was used to sample 152 peri-urban crop farmers. Data collection was done through well-structured questionnaire/interview schedule. The collected data were analysed using descriptive and inferential statistics such as; tables, frequencies, percentages, Likert scale fashion, means, multiple linear regression and multinomial logistics regression. The result for the socioeconomic characteristics for Peri-urb

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Álvarez-Verdejo, Encarnación, Pablo J. Moya-Fernández, and Juan F. Muñoz-Rosas. "Single Imputation Methods and Confidence Intervals for the Gini Index." Mathematics 9, no. 24 (2021): 3252. http://dx.doi.org/10.3390/math9243252.

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The problem of missing data is a common feature in any study, and a single imputation method is often applied to deal with this problem. The first contribution of this paper is to analyse the empirical performance of some traditional single imputation methods when they are applied to the estimation of the Gini index, a popular measure of inequality used in many studies. Various methods for constructing confidence intervals for the Gini index are also empirically evaluated. We consider several empirical measures to analyse the performance of estimators and confidence intervals, allowing us to q

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