Effect of Staining and External Bleaching on the Color Stability and Surface Roughness of Universal-Shade Resin-Based Composite by AlHabdan A, Alsuhaibani A, Alomran L, Almutib L

“…Subsequently, each sample of all four materials was bleached using an in-office bleaching gel using 40% hydrogen peroxide. Color measurements were performed using a spectrophotometer to obtain the International Commission on Illumination parameters, L*; a*; and b* for each of the following periods: baseline, after bleaching, and two weeks after bleaching for the control group. …”
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Vibroacoustic Study of a Miniature Jet Engine Under Blade-Casing Rubbing Condition by Bartłomiej Cywka, Wojciech Prokopowicz, Bartosz Ciupek, Grzegorz M. Szymański, Daniel Mokrzan, Andrzej Frąckowiak

“…The article presents methods and results of vibroacoustic diagnostics of a miniature GTM400 jet engine adapted to kerosene and hydrogen fuel supply. During thermal and vibroacoustic tests of engine parameters powered by hydrogen fuel supply, the engine seized up in the initial start-up phase due to improper control and rapid thermal changes in the gas line. …”
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Characterization and quantification of iron species in the banded iron formations (BIFs) in China Craton to explore the potential for H2 production using XRD and Mössbauer spectros... by Hyo-Im Kim, Inkyeong Moon, Minkyeong Kim, Hyuk Jun Lee, Hyunkyung Choi, Young Rang Uhm, Lei Liu, Jonguk Kim, Wonnyon Kim

“…Banded iron formations (BIFs), significant iron ore deposits formed approximately 2.3 billion years ago under low-oxygen conditions, have recently gained attention as potential geological sources for evaluating hydrogen (H₂) production. BIFs are characterized by high concentrations of iron oxide (20 to 40 wt.%) and low Fe3⁺/Fetot ratios, representing a major source of ferrous iron on Earth. …”
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Journey across extrinsic tactics for power improvements of triboelectric energy harvesting beyond intrinsic materials and device structures: A concise review by Ahmed Mahfuz Tamim, Yebin Lee, Jung Hwan Park, Geon-Tae Hwang, Chang Kyu Jeong

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Blood glucose-lowering activity of protocatechuic acid is mediated by inhibiting α-glucosidase by Huafang Ding, Shouhe Huang, Chui Yiu Chook, Erika Kwek, Chi Yan, Kaying Ma, Jianhui Liu, Hanyue Zhu, Zhenyu Chen

“…The computational simulation found that PCA could insert into the active cavity of α-glucosidase and establish hydrogen bonds with catalytic amino acid residues. …”
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Introduction of Powder Fluxes in Rotary Degassing System Towards Intensifying Refining Process of Aluminium Alloys by M. Piękoś, Z. Smorawiński

“…The results of the trials were reviewed in terms of the changes in the hydrogen content of the performed process and information on such powder-flux-introduction parameters as the type of the rotor head and the melting temperature of the powder flux. …”
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Structural study, optical properties, thermal stability, and biological activity of a non-centrosymmetric hybrid compound 3,4-Diaminopyridinium perchlorate (3,4-DAPP) by Soulayma Mtar, Sameh Sellami, Nassira Chniba-Boudjada, Mohamed Boujelbene

“…However, the supramolecular structure was built from perchlorate anions (ClO4)− and diaminopyridinum organic cations (C5H8N3)+ connected with hydrogen bonds to form a three-dimensional network. …”
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Experimental Study on Fe3O4 Nanoparticle-Assisted Microwave Enhancing Heavy Oil by Teng Lu, Faqiang Dang, Haitao Wang, Qingmin Zhao, Zhengxiao Xu

“…Obtaining the mechanism of nanoparticle-assisted microwave to enhance oil recovery, one of which is that nanoparticles improve the wave absorption and heating capacity of heavy oil and increase the heating speed of heavy oil; the second is that the nanoparticles form local high temperature under the action of microwave, which catalyzes the hydrocracking reaction between the heavy components in the heavy oil and the hydrogen donor, upgrading and reducing the viscosity of the heavy oil, and accelerating the production of heavy oil.…”
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Counteracting negative effects of salinity on Lepidium sativum L. seedlings by prepared biochar by Amira Mohamed Abd El-Sattar, Zeinab Ashour Shedeed

“…The relative permeability of the cell membrane was associated with substantial increases in lipid peroxidation and hydrogen peroxide. The free radicle scavengers' total phenolic, flavonoid, and proline levels were also induced. …”
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Research on the Thermal Runaway Behavior and Flammability Limits of Sodium-Ion and Lithium-Ion Batteries by Changbao Qi, Hewu Wang, Minghai Li, Cheng Li, Yalun Li, Chao Shi, Ningning Wei, Yan Wang, Huipeng Zhang

“…During the thermal runaway of all four battery types, the primary gases produced include carbon dioxide, hydrogen, carbon monoxide, methane, ethylene, propylene, and ethane. …”
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Physiological characteristics of IRR 400 series rubber clones (Hevea brasiliensis Muell. Arg.) under drought stress [version 4; peer review: 1 approved, 2 approved with reservation... by Mohammad Basyuni, Yaya Hasanah, Syarifah Aini Pasaribu, Edison Purba

“…Characteristics observed were total sugar (µM), proline (mg/L), chlorophyll a, b, total (µg/mL), hydrogen peroxidase (µmol/g), ascorbate peroxidase (unit/mg), superoxide dismutase (unit/mg), and peroxide dismutase (unit/mg). …”
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Hybrid stochastic and robust optimization of a hybrid system with fuel cell for building electrification using an improved arithmetic optimization algorithm by Fude Duan, Mahdiyeh Eslami, Mustafa Okati, Dheyaa J. Jasim, Arsalan Khadim Mahmood

“…Abstract This paper proposes a hybrid stochastic-robust optimization framework for sizing a photovoltaic/tidal/fuel cell (PV/TDL/FC) system to meet an annual educational building demand based on hydrogen storage via unscented transformation (UT), and information gap decision theory-based risk-averse strategy (IGDT-RA). …”
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The Antibacterial Effect In Vitro of Honey Derived from Various Danish Flora by Reem Dina Matzen, Julie Zinck Leth-Espensen, Therese Jansson, Dennis Sandris Nielsen, Marianne N. Lund, Steen Matzen

“…The antibacterial effect of Danish honeys was mostly due to hydrogen peroxide. We conclude that honeys derived from Danish flora possess antibacterial effect, probably by a hurdle effect of viscosity, osmolality, acidity, bioactive peptides, and most importantly the content of hydrogen peroxide. …”
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Electrosynthesis of NH3 from NO with ampere-level current density in a pressurized electrolyzer by Wenqiang Yang, Huan Liu, Xiaoxia Chang, Yunlong Zhang, Yafeng Cai, Yifan Li, Yi Cui, Bingjun Xu, Liang Yu, Xiaoju Cui, Dehui Deng

“…The NORR performance can be attributed to the promoted NO mass transfer to the enriched Cu surface, which could increase the NO coverage on Cu and then destabilize adsorbed NO and weaken hydrogen adsorption, thereby facilitating NO hydrogenation to NH3 while suppressing the competing hydrogen evolution.…”
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Insight in the Chemistry of Laser-Activated Dental Bleaching by Roeland Jozef Gentil De Moor, Jeroen Verheyen, Andrii Diachuk, Peter Verheyen, Maarten August Meire, Peter Jozef De Coster, Filip Keulemans, Mieke De Bruyne, Laurence James Walsh

“…Laser light is suggested to enhance the oxidizing effect of hydrogen peroxide. Different methods of enhancing hydrogen peroxide based bleaching are possible. …”
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Mechanistic insights and atmospheric implications of the degradation reaction of 3-methoxy-1-propanol by reaction with hydroxyl radicals and identification of the end products in t... by Abolfazl Shiroudi, Theo Kurtén, Jacek Czub

“…Abstract The study investigated the degradation of 3-methoxy-1-propanol (3M1P) by OH• using the M06-2X/6-311++G(d, p) level, with CCSD(T) single-point corrections. We focused on hydrogen atom abstraction from various alkyl groups within the molecule. …”
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Combustion Characteristics of Mui and Taru Basin Coal in a Fluidized Bed Combustor by Brian Ondari, Zachary Siagi, Anil Kumar

“….% 1.94, 1.89, and 1.07; carbon 65.68, 60.98, and 51.10%; hydrogen 5.97, 5.70, and 5.09%; nitrogen 0.92, 0.94, and 1.00%; and oxygen 11.62, 12.33, and 11.13%, respectively. …”
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Interaction of Fullerenes with Organosilanes in the Ionization Chamber of a Mass Spectrometer under Electron Impact and the Reaction of C60 with Tetraphenylsilane in Solution under... by Yury I. Lyakhovetsky, Elena A. Shilova, Alexandra P. Pleshkova, Alexander I. Belokon, Sergey O. Yakushin, Boris L. Tumanskii

“…The reactions were accompanied by hydrogen addition to some products and hydrogen loss from them. …”
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A New Amine-Modified Hypercrosslinked Polymeric Adsorbent for Removing Phenolic Compounds from Aqueous Solutions by Aimin Li, Quanxing Zhang, Haisuo Wu, Zhicai Zhai, Fuqiang Liu, Zhenghao Fei, Chao Long, Zhaolian Zhu, Jinlong Chen

“…In contrast, hydrogen-bonding or donor-acceptor interaction may govern the adsorption of p -nitrophenol.…”
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Characterization and Optimization of Coal-Biomass Blends for Syngas Production as Alternative Transport Fuel Sources for Two-Stroke Internal Combustion Engines in Tricycles-Tuk Tuk... by Benson Kariuki, Paul Njogu, Joseph Kamau, Robert Kinyua

“…Blending was found to improve the hydrogen:carbon ratio with an average rate of 0.12 and decreased the sulphur and nitrogen content, leading to low emissions. …”
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