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6941
Preparation of curcumin submicron particles by supercritical antisolvent method with external adjustable annular gap nozzle
Published 2025-01-01“…Curcumin was used as a model drug, ethanol as the solvent, and supercritical carbon dioxide (SC-CO2) as the antisolvent. Building on single-factor experiments, a Box-Behnken Design-Response Surface Methodology (BBD-RSM) was employed to systematically investigate the effects of four process parameters—crystallizer pressure (12–16 MPa), crystallizer temperature (313–323 K), solution concentration (1–2 mg/mL), and CO2/solution flow rate ratio (133–173 g/g)—on the morphology and particle size of curcumin particles. …”
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6942
Autonomous Defense Based on Biogenic Nanoparticle Formation in Daunomycin-Producing <i>Streptomyces</i>
Published 2025-01-01“…Herein, we describe the development of a specialized cultivation medium for daunomycin production, including a shift to oil rather than sugar as the primary carbon source. This achieved an almost threefold increase in daunomycin yields, reaching 5.5–6.0 g/L. …”
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6943
Hydrothermal conditions dominated sensitivity and lag effect of grassland productivity in Yunnan Province, China: Implications for climate change
Published 2025-03-01“…Net primary productivity (NPP) is an important indicator of carbon and water cycles in grassland ecosystems and is highly sensitive to climate change. …”
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6944
Synergistic mapping of urban tree canopy height using ICESat-2 data and GF-2 imagery
Published 2025-02-01“…Mapping urban top of canopy height (UTCH) is essential for quantifying urban vegetation carbon storage and developing effective vegetation management strategies. …”
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6945
Tailoring Borate Mediator Species Enables Industrial CO Production with Improved Overall Energy Efficiency by Sustainable Molten Salt CO2 Electrolysis
Published 2025-01-01“…This work presents a cost‐effective strategy for the industrial‐scale production of CO derived from CO2, contributing to a lower carbon footprint by establishing a sustainable borate‐mediated closed loop.…”
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6946
The role of solar thermal hydrogen production technologies in future energy solutions: A review
Published 2025-01-01“…This research fills the knowledge gap by analyzing all solar thermal hydrogen production pathways to compare the identified pathways’ energy, carbon footprint, and cost intensity. It guides towards the solar thermal routes most favorable for hydrogen generation and how these methods are effective in time and toleration of pollution. …”
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6947
Metabolic redundancy and specialisation of novel sulfide-oxidizing Sulfurimonas and Sulfurovum along the brine-seawater interface of the Kebrit Deep
Published 2025-02-01“…They are stratified along the BSI and utilise the reductive tricarboxylic acid cycle to fix carbon dioxide, acting as primary producers. Their energy generation processes include aerobic or anaerobic-nitrate-dependent sulfide oxidation, as well as hydrogen oxidation. …”
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6948
An engineered Yarrowia lipolytica with rapid growth and efficient lipid utilization
Published 2025-06-01“…The engineered strain had a specific growth rate of 0.32 h−1 and a lipid content of 67.66 % (g/g DCW), which were 54 % and 26 % greater than those of the original strain. β-Carotene was used to verify the production of lipophilic natural compounds, and the highest yield was obtained 48 h earlier using the engineered strain compared to the original strain when consuming same carbon source. These findings show promise in using engineered Y. lipolytica for rapid growth and improved lipid utilization to boost efficiency of lipophilic product production.…”
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6949
What Affects Agricultural Green Total Factor Productivity in China? A Configurational Perspective Based on Dynamic Fuzzy-Set Qualitative Comparative Analysis
Published 2025-01-01“…It systematically evaluated the dynamic evolution of agricultural green total factor productivity (AGTFP) by selecting “resources” and “energy” as core input factors and adopting a dual-output approach focused on “economic” and “low-carbon” outcomes. This study thoroughly analyzed the synergistic mechanisms of factors such as natural endowment, agricultural technology, economic development, and environmental regulation, exploring their impact on AGTFP enhancement through the innovative application of the dynamic fuzzy-set qualitative comparative analysis (fsQCA) method. …”
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6950
Scaling Arctic landscape and permafrost features improves active layer depth modeling
Published 2025-01-01“…Tundra ecosystems in the Arctic store up to 40% of global below-ground organic carbon but are exposed to the fastest climate warming on Earth. …”
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6951
Volumetric and End-Tidal Capnography for the Detection of Cardiac Output Changes in Mechanically Ventilated Patients Early after Open Heart Surgery
Published 2019-01-01“…Background. Exhaled carbon dioxide (CO2) reflects cardiac output (CO) provided stable ventilation and metabolism. …”
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6952
Elevated-temperature performance of alkali-activated nano concrete: The role of sustainable nanomaterials
Published 2025-07-01“…An eco-friendly substitute, alkali-activated concrete (AAC), significantly lowers carbon di-oxide (CO2) emissions and energy requirements. …”
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6953
Phenolic Compounds from Water-Ethanol Extracts of Tetrapleura tetraptera Produced in Cameroon, as Potential Protectors against In Vivo CCl4-Induced Liver Injuries
Published 2019-01-01“…The extract of T. tetraptera was administered at doses of 50 mg/kg and 100 mg/kg for 07 per os to rats before the induction of hepatotoxicity with of 2 ml/kg of 1:1 (v/v) carbon tetrachloride (CCl4) and olive oil through intraperitoneal route. …”
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6954
pH-Dependent preferential adsorption and stability of humic substances on goethite: The dual role of aromatic and aliphatic moieties
Published 2025-02-01“…These innovative discoveries clarify the behavior of organic matter in various environmental conditions and its interactions with minerals surfaces, thereby establishing a critical theoretical foundation for understanding the sequestration of soil organic carbon, emphasizing the dual roles of aromatic and aliphatic moieties in the preferential adsorption and stability of humic substances on goethite.…”
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6955
Comparison of high-flow nasal oxygenation and standard low-flow nasal oxygenation during rigid bronchoscopy: a randomized controlled trial
Published 2025-02-01“…The study endpoints included the lowest peripheral oxygen saturation (SpO2), hypoxemia-related surgical interruptions (SpO2 ≤ 94%), and changes in arterial oxygen tension (PaO2) and carbon dioxide tension (PaCO2) during the apnea period for rigid bronchoscopy. …”
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6956
Thermal and Aerodynamic Researches of Staggered Bundles for Choice of an Effective Spacing of Round-Finned Tubes
Published 2019-06-01“…The numerical average value of TCR was Rк = 2,13 × 10–4 m2×K/W, which is typical for reliable mechanical connection of the finned aluminum shell with the supporting steel tube made of carbon steel. The results of variant thermal and aerodynamic calculations with the use of the obtained data established the technical and economic feasibility of placing tubes at the vertices of an isosceles triangle with spacing S1 = 68–69 mm and S2 = 55 mm with failure to use the location of the tubes along an equilateral triangle with S1 = S2' = 64 mm (where S2' – is diagonal spacing). …”
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6957
Factors Associated with High-Quality Cardiopulmonary Resuscitation Performed by Bystander
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6958
Impact of Polystyrene Microplastics on Soil Properties, Microbial Diversity and <i>Solanum lycopersicum</i> L. Growth in Meadow Soils
Published 2025-01-01“…Predictions of gene function revealed that PS-MP treatments modified carbon and nitrogen cycling pathways, with PS1005 enhancing methanogenesis genes (<i>mcrABG</i>) and PS1010 negatively affecting denitrification genes (<i>nirK</i>, <i>nirS</i>). …”
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6959
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6960
Geological characteristics of deep coal rock and main geological factors controlling coalbed methane enrichment: a case study of the M area in the eastern Ordos Basin
Published 2025-01-01“…Industrial components exhibit medium to high levels of volatile matter and ash, abundant fixed carbon, and low moisture content. The coal rock reservoir has well-developed pores and fractures, primarily composed of micropores and macropores. …”
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