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841
CFD algorithm for moving boundary problems of isothermal drying and shrinkage: Case of prunes
Published 2025-01-01“…A moving-boundary FEM model describing isothermal drying of fruit was employed as an inverse problem to estimate water diffusivity and peel resistance, including shrinkage. …”
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842
Doping of Active Region in Long Wavelength InP-Based Transistor Lasers
Published 2016-01-01“…With doping in the MQWs, the carrier diffusivity is decreased, making the defects less effective in consuming the carriers. …”
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843
Impact of combined sun and hybrid drying technologies on cocoa drying process and quality
Published 2025-02-01“…Starting with HD increases the drying rate by 20 %, resulting in higher moisture diffusivity coefficients (over 4.12 × 10−7 m2/s). Combining HD with SD reduces energy consumption by 56.6 %, improving energy efficiency. …”
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844
Influence of temperature and mango pulp thickness on the performance of batch window refractance dryer
Published 2025-06-01“…The study examined the dryer’s overall energy efficiency, as well as the drying kinetics and behavior of mango pulp, using thin-layer drying models and Fick’s law of diffusion. …”
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845
Improving diesel engine performance with hydrogen-fumigated soapnut biodiesel
Published 2025-09-01“…Notwithstanding its ecological advantages, SFB is accompanied by increased emissions of nitrogen oxides (NOx) and a reduction in engine efficiency. This investigation examines the ramifications of hydrogen fumigation on the combustion efficiency and emission characteristics of a single-cylinder compression ignition (CI) engine operating on SFB. …”
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846
Microwave-assisted sodium alginate extraction from Dictyota menstrualis and the fabrication of green thermal insulators
Published 2024-08-01“…Additionally, the thermal conductivity and diffusivity measurements of 0.065 W/(m·K) and 0.294 mm2/s, respectively, affirm the excellent thermal insulation stability of these scaffolds. …”
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847
Natural surfactant fenugreek (Trigonella foenum-graecum) seeds based photogalvanic cell for solar energy conversion and storage
Published 2025-05-01“…A more environmentally sustainable and an efficient Photogalvanic system based on Fenugreek seeds aqueous extract as natural surfactant (saponins), Cellobiose as reductant and Neutral Red dye as photosensitizer is developed to demonstrate a potent cell. …”
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848
Optimization of ultrasound assisted extraction of sappan (Caesalpinia sappan L) wood for preparation of high quality extract
Published 2025-07-01“…UAE was shown to enhance extraction efficiency and preserve phenolic compounds. Additionally, the extraction process was modeled, resulting in a validated effective diffusivity (De) of 1.8 × 10?? …”
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849
Exploring the Dual Nature of Olive Husk: Fiber/Aggregate in Lightweight Bio-Concrete for Enhanced Hygrothermal, Mechanical, and Microstructural Properties
Published 2025-06-01“…Thermal performance metrics included conductivity, specific heat capacity, diffusivity, effusivity, time lag, and predicted energy savings. …”
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850
Thermal properties and non-bonded interactions in human PMP2 variants: A molecular dynamics study
Published 2025-01-01“…Also, the estimated value of thermal diffusivity indicated that the mutant was slightly more efficient at conducting heat than the wild-type protein; the thermal diffusivity of both proteins was much lower than that of water. …”
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851
Investigating the Iron Plating and Stripping of Anolytes for All-Iron Redox-Flow Batteries
Published 2024-12-01“…The coulombic (plating) efficiency was found to be 87.1% at −1.2 V vs. Ag/AgCl (sat’d) at pH 3.5, while the coulombic efficiency in oxidation sweep (stripping) was observed to be 100% in an electrolyte containing 0.8 M FeCl<sub>2</sub> and 3 M NH<sub>4</sub>Cl. …”
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852
Effect of Carbon Nanotube Diameter on Phase Change Thermal Energy Storage Properties of Paraffin Wax
Published 2024-01-01“…To solve the problems of poor thermal conductivity and low thermal energy storage efficiency of paraffin wax, carbon-containing materials with high thermal conductivity are used to improve its thermal energy storage performance. …”
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853
Effect of Coating on Cutting Performance of Milling Water Chamber Head
Published 2019-12-01“…The head of nuclear water chamber head parts, which are difficult to machine, is made of the highstrength 508III special steel In view of the problems of poor cutting performance, short life and low machining efficiency in milling process, firstly, the cutting simulation of the coated cemented carbide tool was carried out to analyze the influence of the coating on the cutting performance of the tool from the aspects of cutting temperature and stress Then, the milling wear experiment of the 508III steel coating tool was carried out The influence of the coating on tool wear and tool life was investigated by the observation of tool wear and analysis of Rake Face morphology Finally, the coating performance comparison experiment was carried out to discuss the effects of different types of coatings, coating thickness and thermal diffusivity of different coatings on the cutting process of the cemented carbide tool of milling 508III steel The research results provide technical support for the development of cemented carbide tools of milling water chamber head and efficient processing of nuclear power parts…”
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854
Entropy generation and magnetohydrodynamic influences on hybrid nanofluid convection in a staggered cavity
Published 2025-05-01“…Staggered cavity designs are widely used in engineering to enhance heat transfer and airflow, thereby improving the efficiency of systems such as radiators, heat exchangers, and electronic cooling. …”
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855
Assessing sustainable latent heat energy storage of RT 35 phase change material in double pipe heat exchangers: A study on concentric and hairpin designs
Published 2025-06-01“…Additionally, the study underscores the significance of selecting the appropriate PCM, noting that PCMs with higher latent heat values has more energy storage capacity. However, the efficiency of energy storage also based on the variation in temperature between the high-temperature fluid (HTF) and the starting temperature of the PCM. …”
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856
Exploring Raw Red Clay as a Supplementary Cementitious Material: Composition, Thermo-Mechanical Performance, Cost, and Environmental Impact
Published 2024-12-01“…It was found that incorporating up to 5% by weight of raw clay slightly impacted compressive strength while significantly improving thermal conductivity and diffusivity, cost-efficiency, and environmental sustainability, making it an appealing option for structural applications requiring high mechanical resistance. …”
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857
LEDs for the Implementation of Advanced Hydrogenation Using Hydrogen Charge-State Control
Published 2018-01-01“…Advanced hydrogenation approaches involving the control of the charge state for the hydrogen atoms in silicon to enhance their diffusivity and reactivity are developed and evaluated in this work for commercial application using a prototype industrial tool in conjunction with solar cells manufactured on commercial production lines. …”
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858
Automated vacuum drying kinetics, thermodynamics, and economic analysis of sage leaves
Published 2025-05-01“…Results showed that increasing temperature and decreasing pressure significantly improved drying efficiency, reducing the process time to just 90 min while achieving a drying rate of 22.34 kg water/kg dry matter/h and an effective moisture diffusivity of 6.716 × 10⁻⁹ m²/s under optimal conditions (60 °C and − 10 kPa). …”
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859
Assessing thermal and economic performance of solar dryers in sustainable strategies for bottle gourd and tomato preservation
Published 2024-11-01“…Energy efficiency assessments highlighted the solar dryer’s advantage, with exergy efficiency peaking at 61.78% for bottle gourds and 68.5% for tomatoes. …”
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860
REM sleep is associated with white matter integrity in cognitively healthy, older adults.
Published 2020-01-01“…Multiple regressions predicted fractional anisotropy (FA) and mean diffusivity (MD) of the corpus callosum as a function of total PSQI score, TST, SE, and percent of time spent in each sleep stage, controlling for age and sex. …”
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