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Comprehensive GC-MS Characterization and Histochemical Assessment of Various Parts of Three <i>Colchicum</i> Species from Bulgarian Flora
Published 2025-01-01“…They underscore the ecological and pharmacological importance of endemic taxa and provide a framework for future research into their sustainable utilization and potential bioactivities.…”
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8403
Hemispheric asymmetry in recent stratospheric age of air changes
Published 2025-01-01Get full text
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8404
Newly isolated halotolerant Gordonia terrae S-LD serves as a microbial cell factory for the bioconversion of used soybean oil into polyhydroxybutyrate
Published 2025-02-01“…In conclusion, this research introduces the first instance of polyhydroxyalkanoate (PHA) production by Gordonia terrae using used soybean oil as the exclusive carbon source, which will enrich strain resources for future PHB biosynthesis.…”
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8405
Synergistic effect of artificial intelligence and new real-time disassembly sensors: Overcoming limitations and expanding application scope
Published 2025-01-01“…In response to the problem of difficulty in accurately achieving predictive maintenance and the severely limited application range of new real-time disassembly sensors, this article conducts research on the synergistic effect of the new real-time disassembly sensors and artificial intelligence technology. …”
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8406
The Dynamic Damage Mechanisms and Failure Modes of Coal-Rock Masses under the Action of High Order P-Waves
Published 2018-01-01Get full text
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8407
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8408
Sensitivity of Dynamical Downscaling Seasonal Precipitation Forecasts to Convection and Land Surface Parameterization in a High-Resolution Regional Climate Model
Published 2019-01-01“…In this study, the sensitivity of dynamical downscaling seasonal precipitation forecasts to convection and land surface parameterization was investigated by nesting the Weather Research and Forecasting (WRF) model into the NCEP’s Climate Forecast System version 2 (CFSv2) retrospective forecasts with four convective schemes: Kain–Fritsch (KF), Betts–Miller–Janjic (BMJ), Grell–Freitas (GF), and new simplified Arakawa–Schubert (NSAS) schemes, and two land surface schemes: Noah and simplified Simple Biosphere (SSiB) schemes over the Han River basin. …”
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8409
Preparation and Protective Performance of High-Reflection and High-Thermal Insulation Laser Protection Coatings
Published 2024-12-01“…Laser weapons have entered the actual combat application stage, and the research on anti-laser protection for air and space weapons is becoming increasingly urgent.Prolonged high-energy laser irradiation leads to problems such as reduced metal reflectance,mass loss of ablated layer of the ablative layer and insufficient heat insulation toughness.Based on this,a composite laser protection strategy based on the principles of reflection and heat insulation was proposed.In this study, by adjusting spraying power, spraying distance and other parameters, supersonic flame spraying technology and plasma spraying technology were used to prepare NiCoCrAlTaY bond coating and yttria-stabilized zirconia(YSZ) top coating double-layer coatings, to explore the influence of surface roughness and porosity on reflectivity, and to investigate the laser protection performance of the coatings.Results showed that the larger the spraying power or spraying distance, the more obvious the layer effect, and the more cross-sectional pores were observed in the coating.The surface roughness of the coating decreased first and then increased with the increase in spraying distance.When the secondary reflection structure was removed, the coating surface had Ra=1.8 μm.When Ra=0.5 μm, the wedge-shaped structure of the coating increased the reflectivity by about 2.4%compared to that of the coating when Ra=1.8 μm.It was pointed out that the layered pores were key to the high-reflection wedge structure, the spherical voids were the laser absorption points,and the process parameter of 14.7%porosity (39 kW,100 mm) was the best.In the laser ablation experiment,with the increase in laser power density, the cracks in the coating gradually increased until holes were ablated.The line ablation rate increased approximately in a parabolic manner.With low laser power density (<3 800 W/cm2), the surface structure changed slightly; as the power increased, the surface cracks increased and deepened, and the petal-like structure in the recondensing zone increased.With high laser power density (>8 050 W/cm2), partial peeling and ablation of the coating surface caused the coating to fail.…”
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8410
Analysis of Unsteady Flow Characteristics of Centrifugal Pump under Part Load Based on DDES Turbulence Model
Published 2021-01-01“…It also occurs near the volute tongue but is lower due to the effect of the guide vane. This research may serve as a reference for the safe operation of centrifugal pumps under part-load conditions.…”
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8411
Use of Hybrid Flame Retardants in Chemically Foamed rPET Blends
Published 2025-01-01“…The foamed structure of recycled polyethylene-terephthalate (rPET) is a promising solution for industrial applications; however, the remedy for its inherent melt-dripping property is still a challenging topic. In our research, we were able to improve the flame retardancy of the endothermic–exothermic hybrid rPET foam by adding a different mixture of flame retardants to the formula. …”
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Characterization of Carbon Molecular Sieve Membranes Supported on Ceramic Tubes
Published 2013-03-01Get full text
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Computational biology assisted exploration of phytochemicals derived natural inhibitors to block BZLF1 gene activation of Epstein–Bar virus in host
Published 2024-12-01“…Density functional Theory analysis was executed to predict the transition energies and the reactivity. Imperatorin was the best candidate for developing the drug against toxin protein Zta coded by the BZLF1 gene because it exhibited the lowest binding energy (− 6.3 kcal/mol) during natural inhibitor screening. …”
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8419
Microstructural Analysis and Radiological Characterization of Alkali-Activated Materials Based on Aluminosilicate Waste and Metakaolin
Published 2025-01-01“…Alkali-activated materials of aluminosilicate origin, made from the different ashes, fly and wood, are very attractive research targets and can be applied in various technological fields due to their thermal stability, resistance to thermal shock, high porosity, high sustainability, and finally, low energy loss during production. …”
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8420
Rational metabolic engineering of <i>Corynebacterium glutamicum</i> to create a producer of L-valine
Published 2023-01-01Get full text
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