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4401
Ultrasonic-assisted hydrogen peroxide leaching of cadmium-containing flue dust under room temperature and neutral conditions: Efficient recovery and mechanism
Published 2025-09-01“…A novel ultrasonic-enhanced hydrogen peroxide leaching method is proposed for efficient cadmium recovery from flue dust under room temperature and neutral conditions, addressing the limitations of conventional methods such as low efficiency and environmental pollution. …”
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4402
Optimizing Nitrogen Fertilization and Irrigation Practices for Enhanced Winter Wheat Productivity in the North China Plain: A Meta-Analysis
Published 2025-05-01“…The subgroup analysis further elucidated the critical roles of nitrogen application ratios, irrigation methods, and study regions in determining winter wheat production efficiency, while the sensitivity analysis confirmed the robustness of these findings, as the pooled effect sizes decreased by merely 0.69% and increased by 0.61% after excluding small-sample or highly biased studies, respectively. …”
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4403
Liquid mixtures separation and heat consumption in the process of distillation
Published 2021-03-01“…The number of plates in the column sections, reflux ratio, energy consumption, and indicators of internal energy saving were determined.Conclusions. Study results show that using the coefficient of the component distribution between the vapor and liquid phases is a promising method for preliminary assessments of the separation difficulty and measurements of the expected heat consumption in the boilers of columns. …”
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4404
CNN-Based End-to-End CPU-AP-UE Power Allocation for Spectral Efficiency Enhancement in Cell-Free Massive MIMO Networks
Published 2025-04-01“…Simulation results demonstrate that the proposed CNN-based power allocation method significantly improves spectral efficiency compared to conventional power allocation techniques while also enhancing energy efficiency. …”
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4405
Determination of Retinol, α-Tocopherol, Lycopene, and β-Carotene in Human Plasma Using HPLC with UV-Vis Detection: Application to a Clinical Study
Published 2013-01-01“…A method is described here for the simultaneous determination of retinol, α-tocopherol, lycopene, and β-carotene in human plasma. …”
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4406
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4407
Optimal fertilizer rate and sowing density can improve oat quality, yield and N and P comprehensive efficiency in the Loess Plateau of China
Published 2025-06-01“…By focusing on the sowing density and fertilizer rate, oats can achieve better productivity performance while maximizing nutrients use efficiency. However, the information on the responses of oats yield, quality and nutrients use efficiency to fertilization and sowing density is limited.MethodsIn this study, from 2022 to 2023, a two-factor randomized block design field trial was conducted in Loess Plateau. …”
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4408
Determination of the Band Gap Energy of SnO<sub>2</sub> and ZnO Thin Films with Different Crystalline Qualities and Doping Levels
Published 2025-02-01“…However, there is no single method for its determination; rather, different approximations depend on the crystalline quality and the doping level because these modify the energy band structure of the semiconductor. …”
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4409
Hybrid Vehicle Battery Health State Estimation Based on Intelligent Regenerative Braking Control
Published 2025-05-01“…In this study, a fuzzy logic estimation method is deployed to determine the tire road friction coefficient (TRFC) and various control strategies are adopted to establish regenerative cut-off points. …”
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4410
Solid-to-liquid extraction and HPLC/UV determination of amygdalin of seeds of apple (Malus pumila Mill): Comparison between traditional-solvent and microwave methodologies
Published 2018-07-01“…The extraction efficiencies are determined by an optimized and standardized high-performance liquid chromatography (HPLC) method that requires retention times of about 1 min only. …”
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4411
The effectiveness of GenoType MTBDRplus using in the diagnosis of tuberculosis in Zaporizhzhia region
Published 2017-08-01“…In comparison with the results of the cultural method, the GenoType MTBDRplus test, v.2 made it possible to establish resistance to rifampicin in 35.7 % (p < 0.05) of patients whose resistance was not determined. …”
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4412
Estimation of some Organophosphorus Pesticides Using Carbon Paste Electrode Coupled with Molecularly Imprinted Polymers
Published 2018-09-01“…The extraction efficiency of the MIPs-OPPs from environmental water samples was evaluated using carbon paste electrode and analytical parameters of the method, the slopes, linearity and detection limits of the liquid electrodes were ranged from 24.8 – 31.3 mV/decade , (10-1 - 10-7 ) mg L-1and (2.2-8.2x10-6) mg L-1, respectively with correlation coefficient (r) (0.9991-0.9998) and repeatability were established. …”
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4413
POWER, METALLURGICAL AND CHEMICAL MECHANICAL ENGINEERING FLOW TYPE THERMOELECTRIC HEAT TRANSFER INTENSIFIER
Published 2017-10-01“…The aim of the study is to develop a construction design that increases the intensity of heat exchange between media and optimises the energy and mass dimensions of the instrument indicators.Methods. A method for the theoretical investigation of thermoelectric heat transfer intensifiers is used, which, by means of forced air flows along the junctions of thermoelements, provides a higher coefficient of heat exchange between media moving in transport zones with altering temperature.Results. …”
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4414
Determination of cyanide contents in sorghum, Daqu, and fermented grains using EDTA-2Na-phosphoric acid distillation-automatic flow injection analyzer
Published 2024-06-01“…The cyanide contents in sorghum, Daqu, and fermented grains were extracted with ethylenediaminetetraacetic acid disodium salt (EDTA- 2Na)-phosphoric acid (2 g-5 ml) distillation system. A rapid determination method for cyanide contents in sorghum, Daqu, and fermented grains was established combined with automatic flow injection analysis technology. …”
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4415
Designing a helpdesk ticketing system to improve the efficiency of IT support services on an XYZ company-based web-site using the Laravel framework
Published 2024-03-01“…Additionally, the author conducts testing using the Black Box Testing method to ensure the system's functionality. The outcome of this research is a web-based Helpdesk Ticketing System that efficiently assists the IT department in handling employee issues. …”
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4416
ELECTROMAGNETIC AND SOUND INSULATION PROPERTIES OF COMBINED SHIELDS BASED ON THE NEEDLE-PUNCHING MATERIAL AND FRAGMENTS OF ALUMINUM FOIL
Published 2020-03-01“…Using an automated meter of transmission and reflection coefficients SNA 0.01–18, shielding characteristics in the frequency range 0.7–17 GHz of the shield samples made in accordance with the proposed method have been obtained. …”
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4417
Determinantes of the economic efficiency of white onion production (crystal ) in Nineveh Governorate for the production season 2022 ( a field study in Shekhan district )
Published 2024-06-01“…The variables studied included the quantity of production in Each farm as a dependent variable, and each of the ( area, seeds,no fertilizers, labor, mechanical work, pesticides, and irrigation hours) as independent variables, using the data envelopment analysis method and the statistical program Deap ). Economic efficiency results and components have The results of economic efficiency and, as well as determining the amount of surplus or deficit in each farm. …”
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4418
CORRECTION OF ENDOTHELIAL FUNCTION OF MICROCIRCULATION DISTURBANCE, BLOOD BIOCHEMICAL PARAMETERS, STANDARDS OF EFFICIENCY, AUTONOMIC AND PSYCHO-EMOTIONAL STATUS IN YOUNG ATHLETES W...
Published 2013-02-01“…The function of endothelium of microcirculation vessels, vegetative and psychoemotional status, lipid spectrum and physical efficiency in 43 young sportsmen are corrected with the aid of Tentorium api-phyto products (APP).The following tests were conducted: samples of reactive hyperemia and hyperventilation, ultrasound investigation of brachial artery, determination of performance efficiency, total cholesterin, triglycerides, cortisol, red cells, vegetative and psychoemotional status by the Spielberger’s test and SAN test, as well as biomicroscopy of sclera. …”
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4419
Study of the Efficiency of Heat-Supply Systems with Steam Turbine CHP Plants, Taking into Account Changes in the Temperature of the Delivery Water during Transportation
Published 2023-08-01“…The significance of the obtained results lies in the possibility of their use for an accurate assessment of the efficiency of heat supply systems with different heat-ing control schedules and for determining the feasibility of correcting temperature schedules in order to take into account the cooling of delivery water during transportation.…”
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4420
The Eco-Efficiency Level Analysis at Various Scales of Robusta Coffee Production of Argopuro Mountain, Jember, Indonesia, Based on Life Cycle Assessment.
Published 2025-04-01“…The aim of this research are first, to determine the environmental impacts that occur in the robusta ground coffee production process; second, to determine the level of eco-efficiency of the robusta ground coffee production process; and third, knowing how to compare the environmental impact and level of eco-efficiency at various scales of ground coffee production. …”
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