Showing 261 - 280 results of 313 for search '"Chemical reaction"', query time: 0.05s Refine Results
  1. 261

    Ozone-Catalytic Treatment of Automotive Exhaust by S.R. Khairulin, D.V. Maksudov, M.A. Kerzhentsev, A.V. Salnikov, Z.R. Ismagilov

    Published 2024-10-01
    “…The developed mathematical model shows a significant decrease in ozone concentration after the "cold start" is over and the temperature of the exhaust gases increases, because of changes in the balance of various chemical reactions. Thus, the ozone concentration is maximum during a cold start, precisely when the lower temperatures do not allow other reactions than those of oxidation of toxic gases with ozone, and decreases by the time the catalytic unit warms up, when effective neutralization of toxic impurities becomes possible without the participation of ozone. …”
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  2. 262

    AI-Professional Development Model for Chemistry Teacher: Artificial Intelligence in Chemistry Education by Bekir Yildirim, Ahmet Tayfur Akcan

    Published 2024-10-01
    “…They also stated that AI applications could be included in various subjects such as organic chemistry, chemical experiments, and chemical reactions. Following the analysis of documents and teacher and AI opinions, a 10-step PDM has been proposed to enhance chemistry teachers' professional development in AI. …”
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    Article
  3. 263

    LABORATORY ELECTROCHEMISTRY “MYSTERY BOX”: FROM PRE-SERVICE TEACHERS’ OBSERVATIONS TO INFERENCES THROUGH PREDICT-OBSERVE-EXPLAIN STRATEGY by Carla Morais, Cidália André, Joana Alves, Gildo Girotto Jr.

    Published 2025-01-01
    “…Data also showed a connection between the macroscopic and symbolic domains, and pre-service teachers recognized concepts associated with the activity, such as solution conductivity and the potential difference in chemical reactions, interpreting the system with prior knowledge, like electron flow direction and concentration cell components. …”
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    Article
  4. 264

    GC-FID and Olfactometry-Assisted Assessment of Odors from Polymeric Foams under Normal and Repeated-Use Conditions by Alena Capíková, Daniela Tesařová, Josef Hlavaty, Adam Ekielski, Pawan Kumar Mishra

    Published 2020-01-01
    “…The samples were collected at the intervals of 72 hours and 672 hours (28 days) to identify the odors due to chemical reactions in the material or slowly released due to its porous structure. …”
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    Article
  5. 265

    A Comparative CFD Study on Simulating Flameless Oxy-Fuel Combustion in a Pilot-Scale Furnace by Mersedeh Ghadamgahi, Patrik Ölund, Tomas Ekman, Nils Andersson, Pär Jönsson

    Published 2016-01-01
    “…A three-dimensional CFD model was developed and the validity of using different submodels describing turbulence and chemical reactions was evaluated. The standard k-ε model was compared with the realizable k-ε model for turbulence, while Probability Density Function (PDF) with either chemical equilibrium or the Steady Laminar Flamelet Model (SLFM) was evaluated for combustion. …”
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  6. 266

    Estimation of Volatile Organic Compounds (VOCs) and Human Health Risk Assessment of Simulated Indoor Environment Consisting of Upholstered Furniture Made of Commercially Available... by Alena Capíková, Daniela Tesařová, Josef Hlavaty, Adam Ekielski, Pawan Kumar Mishra

    Published 2019-01-01
    “…Short-term and long-term (24, 48, 72, 672 hours (28 day)) measurements were done to differentiate the role of primary emissions (present in new products) and secondary emissions (due to chemical reactions in material or slowly released due to the porous structure of material). …”
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    Article
  7. 267

    Detection of Two-Phase Slug Flow Film Thickness by Ultrasonic Reflection by Deddy Kurniadi, Narendra Kurnia Putra, Lalu Febrian Wiranata

    Published 2024-11-01
    “…Slug flow is a common phenomenon in closed pipes, occurring in two-phase flow where liquid and gas phases mix, impacting the custody transfer or the efficiency of chemical reactions. This study aims to detect and analyze slug flow film thickness in two-phase flow, providing detailed structural flow information. …”
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  8. 268

    Modeling of carbon monoxide dispersion around the urban tunnel portals by M. Rafiei, P.J. Sturm

    Published 2018-07-01
    “…From the other side, carbon monoxide is taken as a demonstration pollutant, because it is inert and chemical reactions can be neglected in short-term considerations. …”
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  9. 269

    FACS‐Sortable Triple Emulsion Picoreactors for Screening Reactions in Biphasic Environments by Samuel Thompson, Yanrong Zhang, Zijian Yang, Lisa Nichols, Polly M. Fordyce

    Published 2025-02-01
    “…Abstract Biphasic environments can enable successful chemical reactions where any single solvent results in poor substrate solubility or poor catalyst reactivity. …”
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  10. 270

    Remote Sensing of Atmospheric CO and O3 Anomalies before and after Two Yutian MS7.3 Earthquakes by Haodong Liang, Cunlin Xin, Haibo Liu, Guoyun Di, Songxin Liu, Liang Zhang

    Published 2021-01-01
    “…The abnormal phenomena of TotCO and TotO3 associated with the two earthquakes were attributed to underground gas escape, atmospheric chemical reactions, and atmospheric transportation caused by in situ stress in the generation of earthquakes.…”
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  11. 271

    Engineering Magnetic Heterostructures with Synergistic Regulation of Charge‐Transfer and Spin‐Ordering for Enhanced Water Oxidation by Chongyan Hao, Yang Wu, Xiaobo Zheng, Yumeng Du, Yameng Fan, Weikong Pang, Anton Tadich, Shujun Zhang, Thomas Frauenheim, Tianyi Ma, Xiaoning Li, Zhenxiang Cheng

    Published 2025-01-01
    “…Abstract The design of heterojunctions offers a crucial solution for energy conversion and storage challenges, but current research predominantly focuses on charge transfer benefits, often neglecting spin attribute regulation despite the increasing recognition of spin‐sensitivity in many chemical reactions. In this study, a novel magnetic heterostructure, CoFe2O4@CoFeMo3O8, is designed to simultaneously modulate charge and spin characteristics, and systematically elucidated their synergistic impact on the oxygen evolution reaction (OER). …”
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  12. 272

    Impacts of Groundwater Recharge from Rubber Dams on the Hydrogeological Environment in Luoyang Basin, China by Shaogang Dong, Baiwei Liu, Huamin Liu, Shidong Wang, Lixin Wang

    Published 2014-01-01
    “…Nitrates adsorbed by the silt clay of aeration zone appear to have entered the groundwater through physical and chemical reactions. TDS increased because of groundwater evaporation and some soluble ions entered the groundwater in the unsaturated zone. …”
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  13. 273

    Influence of PPA on the Short-Term Antiaging Performance of Asphalt by Lining Gao, Nana Cai, Xiaohong Fu, Rui He, Honggang Zhang, Jiayin Zhou, Dongliang Kuang, Shaowen Liu

    Published 2021-01-01
    “…Both curves of ductility and G∗ indicate the potential saturation effect of PPA addition; together with infrared spectroscopy, we proved that there are both chemical reactions and physical mixing in the PPA-modified asphalt. …”
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  14. 274

    Pea protein-based pickering emulsions: Mechanistic insights into its modification and innovations for food applications by Nita Aryanti, Alifia Rizki Adina, Aininu Nafiunisa, Dyah Hesti Wardhani

    Published 2025-03-01
    “…This review explores key modification methods for pea protein, including ultrasonication (physical), chemical reactions with reducing sugars, and enzymatic hydrolysis, while also examining complexation mechanisms and factors that improve its stabilizing properties in Pickering emulsions. …”
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  15. 275

    Controversial Issues of Hydrocarbon Field Formation and the Role of Geomagnetic Fields by Andrey A. Ponomarev, Marsel A. Kadyrov, Yuri V. Vaganov, Valeria A. Cheymetova, Vadim M. Aleksandrov, Aleksandr V. Morev

    Published 2022-01-01
    “…We briefly highlight the effect of magnetic fields on chemical reactions involving organic compounds and the use of magnetic fields to enhance oil recovery. …”
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  16. 276

    Microscopic origin of the spatial and temporal precision in biological systems by Anupam Mondal, Anatoly B. Kolomeisky

    Published 2025-03-01
    “…It is even more surprising given that biological phenomena are regulated by multiple chemical reactions that are also random. Although the underlying molecular mechanisms of surprisingly high precision in biology remain not well understood, a novel theoretical picture that relies on the coupling of relevant stochastic processes has recently been proposed and applied to explain different phenomena. …”
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  17. 277

    Microscopic damage evolution and physical–mechanical behavior of high-temperature red sandstone under varying heating and cooling durations by Mingze Qin, Yue Su, Xiaolan Wang, Huawu Niu, Yifan Zhang, Dongxu Zhang, Nan Qin

    Published 2025-01-01
    “…Heating induces cracking, voids, and chemical reactions, with extended exposure leading to changes in feldspar minerals (K/Ca/Na). …”
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  18. 278

    Sorption and Separation of Sugars with Adsorbents Based on Reversible Chemical Interaction by Johan A. Vente, Hans Bosch, André B. de Haan, Paul J.T. Bussmann

    Published 2006-11-01
    “…These results show that reversible chemical reactions can lead to an improvement in the performance of adsorbents for sugar separations.…”
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  19. 279

    Synergistic recovery of Pr, Eu, and Ce from gold mine tailings using bioleaching and oxalic acid pretreatment by Hoda Fereydouni, Tannaz Naseri, Seyyed Mohammad Mousavi

    Published 2025-02-01
    “…Based on kinetic modeling, it was determined that chemical reactions determined the rate-limiting stage. The results showed a notable improvement in the recovery of rare earth elements after iron removal, with recovery of Pr, Ce, and Eu increasing by 24.4%, 14.4%, and 9.1%, respectively. …”
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  20. 280

    SO2 Gas Physicochemical Removal through Pulse Streamer Discharge Technique Assisted by Vapor Additive by Xiaojun Wang, Lianshui Zhang

    Published 2015-01-01
    “…Emission spectra diagnosis experimentally indicates that the SO2 molecule has been physically dissociated into SO and O radicals by electron collision and can be remediated through further chemical reactions during and after discharge. In order to quantitatively analyze the removal physical chemistry kinetics, a zero-dimensional physicochemical reaction model is established. …”
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