Showing 121 - 140 results of 144 for search '"bleach"', query time: 0.04s Refine Results
  1. 121

    A New Approach for Studying Bond Rupture/Closure of a Spiro Benzopyran Photochromic Material: Reactivity Descriptors Derived from Frontier Orbitals and DFT Computed Electrostatic P... by M. S. A. Abdel-Mottaleb, Sarah N. Ali

    Published 2016-01-01
    “…In addition, the solvent and rigidity of the medium significantly control the thermal bleaching of the photogenerated colored isomers and hence the switch ability pattern of the photochromic material. …”
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    Article
  2. 122

    Three-dimensional transport of coral larvae and associated population connectivity in the coastal area of Okinawa Island, Japan by Zhang Tianrui, Uchiyama Yusuke, Takeyasu Kimika

    Published 2025-01-01
    “…In recent years, global warming has intensified coral bleaching worldwide. The mesophotic zone (MPZ) at depths of 30-150 meters, where photosynthesis is viable and water temperatures are stable, is expected to serve as a refuge and gene resupply source for shallow-water corals. …”
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  3. 123

    Bioactive Characteristics of Wild Berberis vulgaris and Berberis crataegina Fruits by Arzu Yaşar Eroğlu, Özlem Çakır, Mustafa Sağdıç, Enes Dertli

    Published 2020-01-01
    “…The total phenolic content of the fruits was determined by the Folin–Ciocalteu methodology, and for the determination of the antioxidant capacity of the fruits, DPPH, ABTS, and β-carotene bleaching methods were performed and a high level of antioxidant activity was observed. …”
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  4. 124

    Cassava Waste Starch as a Source of Bioplastics: Development of a Polymeric Film with Antimicrobial Properties by Yuri D. O. Silveira, Adriana S. Franca, Leandro S. Oliveira

    Published 2025-01-01
    “…Cassava periderm and cortex were bleached with either NaClO or H<sub>2</sub>O<sub>2</sub> before starch aqueous extraction. …”
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  5. 125

    Comparison of yarn properties of gossypium hirsutum and naturally colored gossypium arboreum cotton by Syeda Hafsa Hassan, Tanveer Hussain, Zufiqar Ali, Habib Awais

    Published 2025-01-01
    “…Naturally colored cotton can be a highly sustainable alternative to conventional cotton which entails huge consumption of water, energy, and chemicals in scouring, bleaching and dyeing. The objective of this study was to investigate the yarn properties of one of the most commonly grown Gossypium hirsutum cotton and naturally colored Gossypium arboreum cotton grown in Pakistan. …”
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  6. 126

    Effect of complexation with lanthanide metal ions on the photochromism of (1,3,3-trimethyl-<mml:math alttext="$5'$"> <mml:msup> <mml:mn>5</mml:mn> <mml:mo>&#x2032;</mml:mo...

    Published 2006-01-01
    “…<p>Complexation of lanthanide ions {Ln(III) ions [Tb(III), Eu(III), or Sm(III)]} with the spiropyran-derived merocyanine obtained in dark and under steady irradiation of indoline spiropyran (1,3,3-trimethyl-<mml:math alttext="$5'$"> <mml:msup> <mml:mn>5</mml:mn> <mml:mo>&#x2032;</mml:mo> </mml:msup> </mml:math>-hydroxy-<mml:math alttext="$6'$"> <mml:msup> <mml:mn>6</mml:mn> <mml:mo>&#x2032;</mml:mo> </mml:msup> </mml:math>-formyl-indoline-spiro-2,2<mml:math alttext="$'$"> <mml:msup> <mml:mn></mml:mn> <mml:mo>&#x2032;</mml:mo> </mml:msup> </mml:math>-[2H]chromene) induces a noticeable hypsochromic shift of about 10&#8211;110 nm of its visible absorption band concomitant with hypochromic effect and influences its thermal bleaching in the dark. The effect of lanthanide ions and medium on photochromic, spectral-and-kinetic, and luminescence properties of the spiropyran and its complexes in solution and polymer matrix of polymethylmethacrylate (PMMA) is studied. …”
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  7. 127

    Development of reed-based cellulose aerogel: a sustainable solution for crude oil spill clean-up by Huong Le Thi Thanh, An Tran Nguyen Minh, Hoang Tran Huu

    Published 2025-01-01
    “…After a two-stage HP bleaching sequence, the highest cellulose content achieved was 27.2%, with 80% ISO brightness and 1% ash content under mild Kraft pulping conditions of 30% sulfidity, 20% active alkali (AA), sustained cooking at 165°C for 3 h, and a liquor-to-reed ratio of 8 : 1. …”
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  8. 128

    Contaminated Pond Water Favors Cholera Outbreak at Haibatpur Village, Purba Medinipur District, West Bengal, India by Dilip Kumar Biswas, Rama Bhunia, Dipankar Maji, Palash Das

    Published 2014-01-01
    “…Disinfection of two ponds with bleaching powder was done. We proposed supplying of safe drinking water and repairing defective deep tube well to village.…”
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  9. 129

    Sustainable bamboo: Technological innovations and patent insights for a greener future by Himalay R. Patel, Rahil Mathakia, Urvashi C. Mangroliya, Viralkumar B. Mandaliya

    Published 2025-02-01
    “…In the commercial sector, advances in bamboo fibre extraction and processing have led to higher quality and more sustainable textile products, while innovations in pulping and bleaching processes have reduced the environmental impact of bamboo paper production. …”
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  10. 130

    Physicochemical Performance of Portland-Rice Husk Ash-Calcined Clay-Dried Acetylene Lime Sludge Cement in Sulphate and Chloride Media by Jackson Muthengia Wachira, Joseph Karanja Thiong’o, Joseph Mwiti Marangu, Leonard Genson Murithi

    Published 2019-01-01
    “…The novel cement, labelled PCDC, made from intermixing ordinary Portland cement (OPC) with waste materials which included rice husks, waste bricks, acetylene lime sludge, and spent bleaching earth was previously tested and found to meet the Kenyan Standard requirements for Portland pozzolana cement (PPC). 100 mm mortar cubes were prepared, and their compressive strengths were determined after exposure to the sea water. …”
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  11. 131

    COLORATION AND DISCOLORATION OF OLVEOLAR BONE AND TOOTH ENAMEL CAUSED BY MEDICATION by Giurgiu Cristian Levente, George Morarasu, Nicolae Baranov, Pogăcian-Maier Alexandra-Camelia, Radu-Mircea Sireteanu-Cucui, Cristina Pipa, Alina Monica Miftode, Alina Stefanache

    Published 2024-12-01
    “…Treatment options range from professional cleaning and bleaching to more invasive procedures like veneers and crowns, depending on the type and severity of the discoloration. …”
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  12. 132

    Preparation of Laundry Soap from Palm Oil and Lye from Ash of Dry Eucalyptus Tree. by Bwambale, Gerald

    Published 2025
    “…This suggests that the soap's white color results from bleaching the oil sample, and that the soap's hardness is caused by a high concentration of K+ ions in the manufactured soap, as evidenced by the emulsification test results (observed), foam test results (form lightly with moderate persistence), and foam height measurements (1.1 cm). …”
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    Thesis
  13. 133

    Investigation of electrochromic performances of multicolor V2O5 devices fabricated at low processing temperature by Ming-Yue Tan, Gregory Soon How Thien, Kar-Ban Tan, H. C. Ananda Murthy, Kah-Yoong Chan

    Published 2025-01-01
    “…The V2O5 device, featuring thin film annealed at 200 °C, demonstrated excellent EC performance with high optical contrast of 42.32%, high coloration efficiency (CE) of 34.93 cm2/C, as well as rapid coloring and bleaching times of 0.4 s and 3 s, respectively. These results shed light on the importance of annealing temperature control towards the EC performance of V2O5 devices for future applications.…”
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  14. 134

    Extraction of Cellulosic Compound from Jackfruit Peel Waste and Characterization of PVA Cellulose Composite as Biodegradable Film by Aquib Rahman, Shah Md Ashiquzzaman Nipu, Md Shamsul Alam, S. Sharar Alam, Md. Tanvir Ahmed, Anika Afroz Shantona, Mahjabin Moon

    Published 2024-01-01
    “…This study aims to extract cellulose from jackfruit (Artocarpus heterophyllus) peel by combining bleaching and alkaline treatment (17.5% w/v NaOH) and utilizes the extracted cellulosic compounds to produce a practical biodegradable film. …”
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  15. 135

    FT-IR Analysis of Beta vulgaris Peels and Pomace Dye Extracts and Surface Analysis of Optimally Dyed-Mordanted Cellulosic Fabrics by Vincent Rotich, Phanice Wangila, Jackson Cherutoi

    Published 2022-01-01
    “…The spectral analysis of bleached and optimally dyed (nonmordanted and mordanted) fabrics revealed varied peaks indicating different functional groups suggesting the presence of cellulose and the binding of mordants with chromophores in the dye extract which yield different shades. …”
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  16. 136

    Impact of the unconventional extraction on antioxidants and antimicrobial characteristics of hibiscus and olive leaves extracts by Abdel-Aziz R.E. El-Hadary, Ayat M.A. Abulmakarm, A.M. Sulieman, Gehan A. El-Shorbagy, Alaa S. Mohamed

    Published 2025-01-01
    “…HPLC assay, scavenging radical activity by DPPH˙ (IC50), inhibition lipid peroxidation by both β-Carotene/Linoleic Acid Bleaching (βCB) and Thiobarbituric Acid Reactive Substances (TBARs) assays, antibacterial and antifungal activities measured for different concentrations of ethanolic extracts by conventional extraction (CE) and difference in pressure extraction (DPE) methods, and the results shown a considerable in mean difference (P < 0.05) between the mean values of all extracts of same raw material and also extraction methods, a positive effect for the extracts by DPE method. …”
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  17. 137

    Changes in the Flavor of Cold-Pressed Tiger Nut Oil (<i>Cyperus esculentus</i> L.) During Refining Processes and Evaluation of Its Thermal Properties by Yue Zhao, Yang Sun, Heyi Sun, Tianying Sun, Jian Ren, Chunli Song

    Published 2025-01-01
    “…Three different refining processes were evaluated: citric acid-assisted hydration degumming, alkali deacidification and bleaching. In the present study, the neutralization refining resulted in 11.67% losses. …”
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  18. 138
  19. 139

    Ponderações sobre o branqueamento em processos de restauração de papel: um panorama químico e teórico do procedimento by Luiza Batista Amaral, Camilla Henriques Maia de Camargos

    Published 2025-01-01
    “…A partir de tal levantamento crítico-metodológico, que contempla inclusive uma introdução aos fenômenos químicos fundamentais à ação do branqueamento sobre cromóforos-chave presentes na celulose amarelecida, faz-se uma exposição criteriosa dos prós e contras das operações em questão, cotejando o debate da teoria da restauração com a discussão feita por Irene Brückler e Ute Henniges em seu artigo sistemático Thoughts on bleaching guidelines. A proposta é contribuir para o debate acerca do branqueamento, também em língua portuguesa, munindo os conservadores-restauradores de informações sobre os principais critérios a serem considerados e os diversos métodos para a realização segura e racional do procedimento. …”
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  20. 140

    Development of Sustainable Bioplastic Composite Films from Cocoa Pod Husk Waste Cellulose and Kappa-Carrageenan by Esa Ghanim Fadhallah, Ahmad Sapta Zuidar, Sri Hidayati, Haidawati Haidawati, Amarilia Harsanti Dameswary, Aisyah Tri Ramadhani

    Published 2024-12-01
    “…The cellulose was isolated through a delignification and bleaching process, while the bioplastics were prepared by varying the ratios of cellulose and kappa-carrageenan in six different formulations. …”
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    Article