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4541
Determination of chlorinated paraffins in PM2.5 by QuEChERS combined with ultra-high performance liquid chromatography-quadrupole/orbitrap high resolution mass spectrometry
Published 2024-10-01“…Simultaneous extraction and determination of SCCPs, MCCPs, and LCCPs in PM2.5 could provide technical support for their environmental monitoring and human health risk assessment.ObjectiveTo establish a method based on QUEChERS pretreatment method in conjunction with ultra-performance liquid chromatography-quadrupole/orbitrap high resolution mass spectrometry for simultaneously determining the levels of SCCPs, MCCPs, and LCCPs in PM2.5. …”
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4542
Determination of Pollen Viability and Germination of Solanum melongena ve Solanum torvum and Obtaining Plants from Solanum melongena x Solanum torvum Hybrids Using in vitro Techniq...
Published 2017-07-01“…Pollen viability and polen germination percentage were determined by TTC and ‘agar in Petri’ methods, respectively. …”
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4543
IMMUNITY DYSFUNCTION IN RESPIRATORY DISEASES: DO FREQUENTLY ILL CHILDREN NEED IMMUNOMODULATORS?
Published 2015-04-01Get full text
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4544
Evaluating the performance of Moroccan social incubators: an SFA analysis of youth platforms under the national initiative for human development
Published 2025-06-01“…Research methodology – Based on a sample of 40 NIHD youth platforms, the stochastic frontier analysis (SFA) method was applied to measure their technical efficiency (TE), and then the determinants of the TE obtained were analysed by a regression using the Tobit model. …”
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4546
INCREASING CENTRIFUGAL PUMP PERFORMANCE
Published 2019-08-01“…Objectives Investigate the prospect of improving the quality of centrifugal pumps in oil production.Method The method is based on energy-efficient installations for high-yield wells - the steps of the Borets-Weatherford installations and the Borets PC stages.Result The main hydraulic characteristics of electric centrifugal pumps with the use of energy-efficient stages with the recommended feed range have been developed. …”
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4547
Presenting a model for determining the level of technological complexity of research and development activities in knowledge-based companies (case study: companies based in Golesta...
Published 2025-03-01“…Research and development activities make it possible for knowledge-based companies to adapt to the changes and fluctuations in the market through efficient methods, offer new products and achieve sustainable competitive advantages. …”
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4548
Public health services: implementation of healthcare technologies
Published 2020-10-01Get full text
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4549
Distribution of Heterogeneous, Highly Impure Soy Material in a Deep Air Channel
Published 2023-12-01“…(Research purpose) The research aims to determine the optimal efficiency of separating heterogeneous bulk mixtures in a vertically ascending air channel. …”
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4550
Does the number of pages received per hour affect resident productivity?
Published 2023-12-01Get full text
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4551
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4552
Development of silver-doped carbon dots sensor derived from lignin for dual-mode fluorometric and spectrophotometric determination of valsartan in a bulk powder and a commercial pr...
Published 2024-12-01“…The nano sensor efficiently assessed the presence of VAL in pharmaceutical tablets and produced a favorable outcome with the mean of recovery of 98.91 % and 99.76 % with relative standard deviation (RSD%) of 0.79 and 0.78 for the fluorometric and spectrophotometric methods, respectively.…”
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4553
Areas of energy advantage for flowsheets of separation modes for mixtures containing components with similar volatilities
Published 2020-07-01“…The direct and indirect distillation modes can become competitive when the point of the original composition is located near single K-surfaces or in a region with a different ratio of distribution coefficients. Sharp distillation is not suitable for the separation of a mixture containing a pair of components exhibiting relative unity volatility with medium boiling points.Methods. …”
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4554
Benchmarking the efficiency of distribution warehouses using a four-phase integrated PCA-DEA-improved fuzzy SWARA-CoCoSo model for sustainable distribution
Published 2024-12-01“…IMF SWARA is applied to determine criteria weights, while the CoCoSo method is employed in the last phase for ranking efficient warehouses. …”
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4555
Monetary revenues as a major indicator of the living standards of the population of Russia
Published 2019-07-01“…Along with traditional statistical methods, the study also used the method of assessing structural differences, the method of index analysis of the differentiation of the population by monetary income at both the Federal and regional levels. …”
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4556
Thermal expansion of (MnIn<sub>2</sub>S<sub>4</sub>)<sub>1-x</sub>•(AgIn<sub>5</sub>S<sub>8</sub>)<sub>x</sub> solid solutions
Published 2019-06-01“…The thermal expansion of single crystals of solid solutions (MnIn2S4)1–х•(AgIn5S8)х was measured by the dilatometric method in the temperature range 80–450 K. The coefficients of thermal expansion are determined and their concentration dependences at different temperatures are constructed. …”
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4557
Determination of correlation between cytokines IL 6, IL8, IL10, IL12, IL17 and severity of hepatocellular carcinoma in patients having hepatitis C
Published 2024-11-01“… Objective: To determine the correlation between the levels of interleukins 6, 8, 10, 12 and 17 and the severity of hepatocellular carcinoma in patients positive for hepatitis C. …”
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4558
ELASTIC CHARACTERISTICS OF BRUSH PILE ON THE MUNICIPAL MACHINE WORKING EQUIPMENT
Published 2019-03-01“…Moreover, the authors discuss the factors affecting the quality of the road surface cleaning and the brush pile resource.Materials and methods. The research presents the results of the interaction process of the BWB pile with the cleaned surface of the roadway. …”
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4559
Optimization of friction and electrical resistance performance in graphite-copper electrical contacts using Taguchi-based grey relational analysis
Published 2024-01-01“…A gray relational grade obtained from gray relational analysis was employed to assess the performance characteristic in the Taguchi mixed L18 (2 1 x 3 2) method. The Taguchi design method determined the optimal control factors that affect the friction coefficient and electrical resistance. …”
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4560
DIFFUSION-WEIGHTED MAGNETIC RESONANCE IMAGING IN THE DIAGNOSIS OF INTERVERTEBRAL DISC DEGENERATION IN THE LUMBOSACRAL SPINE
Published 2017-01-01“…Objective: to quantify the degree of degeneration of intervertebral discs (IVDs), by constructing functional diffusion-weighted imaging (DWI) maps, and to determine a correlation between the measured diffusion coefficient (DC) values and IVD changes on T1- and T2-weighted images. …”
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