Showing 781 - 800 results of 874 for search '"carbon dioxide"', query time: 0.07s Refine Results
  1. 781

    IMPLEMENTASI INTERNET OF THINGS (IOT) DALAM MONITORING KUALITAS UDARA PADA RUANG TERBUKA by Jesi Pebralia, Hamdi Akhsan, Iful Amri

    Published 2024-04-01
    “…Four parameters are monitored: carbon dioxide (CO2) concentration, carbon monoxide (CO) concentration, temperature, and humidity. …”
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  2. 782

    Spatial and seasonal distribution of selected nitrogen cycle genes in deep waters of the Baltic Proper by Michał Grabski, Michał Grabski, Ewa Kotlarska, Aneta Łuczkiewicz, Konrad Hryniewicz, Grzegorz Węgrzyn, Beata Szymczycha

    Published 2025-02-01
    “…It indirectly regulates primary production and influences the strength of the biological pump, which contributes to the oceanic uptake of atmospheric carbon dioxide (CO2). As the microbial community structure and functional capacities remain underestimated in terms of temporal and geographical coverage in the Baltic Sea, our understanding of the nitrogen cycle with respect to ecosystem functioning and climate change is limited. …”
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  3. 783

    Cardiorespiratory dynamics in the brain: Review on the significance of cardiovascular and respiratory correlates in functional MRI signal by Mahathi Kandimalla, Seokbeen Lim, Jay Thakkar, Sannidhi Dewan, Daehun Kang, Myung-Ho In, Hang Joon Jo, Dong Pyo Jang, Zuzana Nedelska, Maria I. Lapid, Yunhong Shu, Cheon-Pyung, Petrice M. Cogswell, Val J. Lowe, Jeyeon Lee, Hoon-Ki Min

    Published 2025-02-01
    “…In this review, we explore the role of cardiorespiratory dynamics—such as heart rate variability (HRV), respiratory sinus arrhythmia (RSA), and changes in blood flow, oxygenation, and carbon dioxide levels—embedded within fMRI signals. These physiological signals reflect critical aspects of neurovascular coupling and are influenced by factors such as physiological stress, breathing patterns, and age-related changes. …”
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  4. 784

    Strength and Durability Performance of Hybrid Alkaline Clay Brick Waste –Coconut Shell Ash Cement by Victor Kiptoo Mutai, Mike Otieno, Joseph M. Marangu, Fredrick Mulei Mutunga, Najya Muhammed, Festus Ngui

    Published 2024-12-01
    “…Hybrid Alkaline Cement (HAC) has the potential to reduce carbon dioxide (CO2) and improve concrete structure. The durability of a hybrid alkaline mortar made from a mixture of calcined clay brick waste (CBW) and coconut shell ash (CSA) was compared with that of ordinary Portland cement (OPC) and pozzolanic Portland cement (PPC), which are the two common types of Portland cement. …”
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  5. 785

    Nanopore Confinement Effect on the Phase Behavior of CO2/Hydrocarbons in Tight Oil Reservoirs considering Capillary Pressure, Fluid-Wall Interaction, and Molecule Adsorption by Zhixue Zheng, Yuan Di, Yu-Shu Wu

    Published 2021-01-01
    “…A novel methodology is proposed to investigate the phase behavior of carbon dioxide (CO2)/hydrocarbons systems considering nanopore confinement. …”
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  6. 786

    Prognostic Value of Endothelial Progenitor Cells in Acute Myocardial Infarction Patients by Gongjie Ye, Xiaodan Chen, Yinchao Zhou, Jianqing Zhou, Yongfei Song, Xiaoyong Yang, Lei Yang

    Published 2023-01-01
    “…The study incorporated various variables, including cardiovascular risk factors such as body mass index, hypertension, diabetes, hypercholesterolemia, atherosclerotic burden, and medication history, as well as clinical characteristics such as APACHEⅡscore, central venous-arterial carbon dioxide difference (GAP), homocysteine, creatinine, C-reactive protein, HbAlc, and cardiac index. …”
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  7. 787

    Characteristics of Soil Profile Greenhouse Gas Concentrations and Fluxes of Alpine Grassland as Affected by Livestock Grazing by Mingyuan Yin, Xiaopeng Gao, Yanyan Li, Yufeng Wu, Wennong Kuang, Fanjiang Zeng

    Published 2025-01-01
    “…Results showed that soil at lower depths (30–60 cm) had higher carbon dioxide (CO<sub>2</sub>) concentrations but lower methane (CH<sub>4</sub>) concentrations. …”
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  8. 788

    RSM approach-based analysis of the physical behavior of dune sand reinforced with Washingtonia waste contributing to mortar cleaner production by Abdelhamid Khelifi, Messaouda Boumaaza, Ahmed Belaadi, Mostefa Bourchak, Tarek Djedid, Ibrahim M.H. Alshaikh, Djamel Ghernaout

    Published 2025-07-01
    “…Alternatives to cement or natural aggregates lead to natural resource conservation and reduced carbon dioxide emissions. In this context, dune sand (DS) and Washingtonia waste (WW), which are abundant in the Algerian desert, were investigated as potential eco-friendly substitutes for cement in mortar manufacture. …”
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  9. 789

    Preparation of curcumin submicron particles by supercritical antisolvent method with external adjustable annular gap nozzle by Yechen Wang, Zirui Li, Sun Fayu, Fei Li, Weiqiang Wang

    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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  10. 790

    Computational Analysis of an Ammonia Combustion System for Future Two-Stroke Low-Speed Marine Engines by Jose R. Serrano, Ricardo Novella, Héctor Climent, Francisco José Arnau, Alejandro Calvo, Lauge Thorsen

    Published 2024-12-01
    “…The production and combustion of green ammonia do not generate carbon dioxide, offering a promising avenue for substantial reductions in greenhouse gas (GHG) emissions from a well-to-wake perspective. …”
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  11. 791

    Metabolic redundancy and specialisation of novel sulfide-oxidizing Sulfurimonas and Sulfurovum along the brine-seawater interface of the Kebrit Deep by Rayyan Alamoudi, Alan Barozzi, Grégoire Michoud, Marc W. Van Goethem, Charlene Odobel, Yue Chen, Ramona Marasco, Daniele Daffonchio

    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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  12. 792

    Volumetric and End-Tidal Capnography for the Detection of Cardiac Output Changes in Mechanically Ventilated Patients Early after Open Heart Surgery by Ingrid Elise Hoff, Lars Øivind Høiseth, Knut Arvid Kirkebøen, Svein Aslak Landsverk

    Published 2019-01-01
    “…Background. Exhaled carbon dioxide (CO2) reflects cardiac output (CO) provided stable ventilation and metabolism. …”
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  13. 793

    Characterizing Tidal Marsh Inundation with Synthetic Aperture Radar, Radiometric Modeling, and In Situ Water Level Observations by Brian T. Lamb, Kyle C. McDonald, Maria A. Tzortziou, Derek S. Tesser

    Published 2025-01-01
    “…Tidal marshes play a globally critical role in carbon and hydrologic cycles by sequestering carbon dioxide from the atmosphere and exporting dissolved organic carbon to connected estuaries. …”
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  14. 794

    Can Underlying Co-Morbidities Affect Cerebral Oximetry in Cardiac Surgery Patients? by Kianoush Saberi, Shahnaz Sharifi, Amirhossein Orandi

    Published 2024-11-01
    “…Following admission to the operating room, standard monitoring of vital signs, including non-invasive blood pressure (NIBP), electrocardiogram (ECG), central venous pressure (CVP), oxygen saturation (SpO2), and end-tidal carbon dioxide (ETCO2), was established. Prior to anesthesia induction, cerebral oxygen saturation (rSO2) was continuously monitored using the INVOS 5100c cerebral oximeter. …”
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  15. 795

    Comparison of high-flow nasal oxygenation and standard low-flow nasal oxygenation during rigid bronchoscopy: a randomized controlled trial by Hye Jin Kim, Chang Young Lee, Kyuho Lee, Namo Kim, Seungyeon Lee, Young Jun Oh

    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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  16. 796

    Differential controls on CO2 and CH4 emissions from the free-flowing Neretva River, Bosnia and Herzegovina by Martin Dalvai Ragnoli, Thea Schwingshackl, Serafine Kattus, Julius Lissy, Elisabeth Weninger, Gabriel Singer

    Published 2023-12-01
    “… Streams and rivers emit methane (CH4) and carbon dioxide (CO2), two greenhouse gasses contributing to global warming. …”
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  17. 797

    Assessing and optimizing the potential for climate change mitigation and carbon sequestration in urban residential green spaces: energizing sustainable cities by Hancheng Liu, Jialong Zhang, Zijun Wang

    Published 2025-01-01
    “…IntroductionUrban green spaces play a crucial role in mitigating climate change by sequestering atmospheric carbon dioxide. This study aimed to evaluate the carbon sequestration potential of common plant species in urban residential areas and provide recommendations for optimizing green space design and management.MethodsThe research was conducted in four residential areas of Nanjing, China, where key growth parameters of 20 plant species, including evergreen trees, deciduous trees, evergreen shrubs, and deciduous shrubs, were measured. …”
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  18. 798

    Cerebral tissue oxygen saturation and its potential relationship with neurodevelopmental delay in pediatric liver transplant recipients by Yichen Fan, Qianling Pan, Henghua Su, Zhongchan Pu, Linjie Zhu, Bo Qi, Diansan Su, Liqun Yang, Dan Huang, Weifeng Yu

    Published 2025-01-01
    “…Secondary outcomes included the duration of mechanical ventilation, rates of re-intubation, length of ICU stay, postoperative hospitalization, and intraoperative comparisons of mean arterial pressure (MAP), arterial partial pressure of oxygen (PaO2), arterial partial pressure of carbon dioxide (PaCO2), and hemoglobin (Hb) concentration.ResultsA total of 119 patients were included in the statistical analysis and assigned to high saturation group (HS) and low saturation group (LS) according to the average intraoperative cerebral tissue oxygen saturation values. …”
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  19. 799

    Molecular Dynamics Simulation of CO<sub>2</sub>-ECBM Under Different Moisture Contents by Xiaoyu Cheng, Xuanping Gong, Cheng Cheng, Quangui Li, Ziqiang Li

    Published 2025-01-01
    “…The water and methane (CH<sub>4</sub>)/carbon dioxide (CO<sub>2</sub>) molecules compete for adsorption and undergo a series of reactions that affect gas diffusion. …”
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  20. 800

    Adaptation of global primary production model to the Greenland Sea conditions: parameterization and monitoring for 1998-2022 by Aleksandra Cherkasheva, Rustam Manurov, Piotr Kowalczuk, Alexandra N. Loginova, Monika Zabłocka, Astrid Bracher, Astrid Bracher

    Published 2025-01-01
    “…Phytoplankton are responsible for releasing half of the world’s oxygen and for removing large amounts of carbon dioxide from surface waters. Despite many studies on the topic conducted in the past decades, we are still far from a good understanding of ongoing rapid changes in the Arctic Ocean and how they will affect phytoplankton and the whole ecosystem. …”
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