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Wyszukujesz frazę "Nguyen, Lien" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Rice Growth, Grain Zinc, and Soil Properties under Saline Irrigation Conditions
    Autorzy:
    Thi, Lan Phuong Dinh
    Hang, Nga Nguyen Thi
    Nguyen, Hoa Thanh
    Nguyen, Lien Thi
    Powiązania:
    https://bibliotekanauki.pl/articles/1955578.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    salt stress
    rice growth
    nutrient zinc
    irrigation water
    salt accumulation
    Opis:
    This research evaluated rice growth and yield as well as Zn accumulation in both soil and grain under saline water irrigation conditions. The experiment consisted of a series of pots containing rice plants and paddy soil, with the application of irrigation treatments of five different salinity levels (1.5, 2, 3, 4, and 5‰ with a drip irrigation system). The results show that the salinity accumulation levels in soil can increase by up to 2.8‰ following the application of 5‰ salinity irrigation water during the development stages. Besides, this study also aimed to evaluate the influences of saline water irrigation on the observed rice yields, plant height, leaf length, and leaf width. In the results, irrigation with 3‰ saline water reduced potential rice yield by 58.6% and the length of rice leaves by one-third. Higher salinity of 4‰ in the irrigation water produced only 24% of average potential productivity, and 5‰ water salinity resulted in no yield. Furthermore, salt stress limited the mobile Zn content in paddy soil, reducing the Zn accumulation in grains by between 36.27% and 83.21%. Thus, the study shows that controlling salinity in irrigation water management is essential for controlling the yield and nutrient Zn content in rice grains.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 9; 59-70
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of Copper Removal by Photovoltaic Electrocoagulation from Aqueous Solution Using Response Surface Methodology Towards Sustainable Development
    Autorzy:
    Thanh, Hoa Nguyen
    Nguyen, Lien
    Lan, Phuong Dinh Thi
    Powiązania:
    https://bibliotekanauki.pl/articles/123109.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    photovoltaics
    electrocoagulation
    copper
    Box-Behnken design
    energy consumption
    lithium battery
    sustainable development
    Opis:
    This research aims at illustrating the optimal functions of removing copper ions in aqueous solution by means of the electrocoagulation process in which portable solar power generators are used as renewable energy. A solar photovoltaic cell (PV), producing approximately 48A current intensity for 4-7 h per day, was sufficient to charge the lithium batteries completely during the day. This system was connected directly to the electrocoagulation tank. The Box-Behnken design (BBD) was applied to evaluate three effects of process factors: current density, the dose of electrolyte (NaCl), and application time. The results showed that an optimal efficiency of 99.01% Cu removal plus an energy savings of 1.039 kWh/m3 were obtained at a current density of 4 A/m2, the dosage of NaCl (electrolyte) of 1.87 g/L, and electrolysis time of 10 min. The chemical components of the sludge produced under these optimized conditions were determined by means of EDX. It was illustrated that the copper ions were the main elements of sludge, and nonhazardous compounds were contained. The PV-lithium battery system is considered to be an efficient alternative energy source toward sustainable development.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 7; 103-111
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effectiveness of a Mobile Application-Based Intervention to Improve Knowledge and Practice Regarding Silicosis Among High-Risk Workers of Dust Exposure in a Northern Province of Vietnam
    Autorzy:
    Nguyen, Thi Thu Huyen
    Ta, Thi Kim Nhung
    Pham, Thi Quan
    Nguyen, Thanh Thao
    Nguyen, Ngoc Anh
    Nguyen, Thi Lien Huong
    Le, Thi Huong
    Luong, Mai Anh
    Le, Thi Thanh Xuan
    Powiązania:
    https://bibliotekanauki.pl/articles/27323251.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Przeróbki Kopalin
    Tematy:
    knowledge
    practice
    workers
    silicosis
    mobile application
    effectiveness
    praca
    aplikacja mobilna
    Wietnam
    Opis:
    Objectives: to analyze changes in knowledge and practices regarding silicosis in groups of workers at high risk of silicosis before - after an intervention. Methods: The study was conducted from 2018 to 2019 based on structured questions related to knowledge and practices of silicosis of workers directly exposed to silica dust in a Northern province of Vietnam. The mobile app-based intervention was applied to steel workers, then compared with ironworkers in improvements in silicosis knowledge and practices. Results: Significant changes in the intervention group related to workers' knowledge about the signs suggestive of silicosis, disease consequences, measures to reduce the risk of silicosis, and participation in annual occupational disease examinations were reported. Conclusion: Mobile applicationbased interventions could improve silicosis knowledge and practice among workers at high risk of exposure to silica dust.
    Źródło:
    Inżynieria Mineralna; 2023, 2; 295--302
    1640-4920
    Pojawia się w:
    Inżynieria Mineralna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Electrolyzed Cassava Starch-Gelatin Coating on Biochemical Properties and Ripening of Banana (Musa acuminata L.) Fruits
    Autorzy:
    Pham, Thanh Tung
    Nguyen, Le Phuong Lien
    Baranyai, László
    Nguyen, Thuy Linh
    Trinh, Khanh Son
    Powiązania:
    https://bibliotekanauki.pl/articles/2159285.pdf
    Data publikacji:
    2022-09-05
    Wydawca:
    Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
    Tematy:
    climacteric fruit
    starch
    electrolysis
    respiration
    thin coating
    Opis:
    In this study, cassava starch oxidized by the electrolysis was used as an edible coating to improve the shelf life of banana fruits. The effects of coating in solutions of electrolyzed starch with 1, 2 and 3% (w/v) gelatin and without gelatin addition on respiratory rate and biochemical properties of banana during 8 days of storage at room temperature (75-80% relative humidity) were evaluated. The micrographs of scanning electron microscopy showed very thin coating layers (<25.2 um) with continuous network topology and no cracks. During the storage period, a significant reduction in respiration rate and weight loss of coated bananas compared to uncoated fruits was noted. Furthermore, the change in titratable acidity and contents of soluble solids, total carbohydrates and reducing sugars of coated bananas were slower. Increasing the gelatin content in the coating had a beneficial effect on delaying the ripening of bananas. The oxidized starch coating formulation with 3% (w/v) of gelatin demonstrated the highest efficiency as it delayed the respiratory peak 4 days more than in the uncoated bananas. This study results suggest that electrolyzed starch-gelatin coating could be a potential material to extend the shelf life of fruits.
    Źródło:
    Polish Journal of Food and Nutrition Sciences; 2022, 72, 3; 263-272
    1230-0322
    2083-6007
    Pojawia się w:
    Polish Journal of Food and Nutrition Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An application of the Negative Malmquist model for Vietnamese garment and textiles industry
    Autorzy:
    Nguyen, Thi Kim Lien
    Nguyen, Xuan-Huynh
    Pham, Hong V.
    Powiązania:
    https://bibliotekanauki.pl/articles/2175875.pdf
    Data publikacji:
    2022
    Wydawca:
    STE GROUP
    Tematy:
    negative malmquist model
    data envelopment analysis
    garment and textile company
    efficiency
    Opis:
    The study purpose is to measure the performance of the Vietnamese garment and textiles industry by means of the Negative Malmquist model using the data envelopment analysis (DEA) method. The empirical results presented the efficient, inefficient cases, and average efficiency for all garment and textile companies in Vietnam during from 2016 to 2020. The main findings determined that five companies, including HTG, TET, MSH, M10, and BDG possessed efficiency scores in whole terms. An overall picture of the garment and textiles industry in Vietnam is used to evaluate the operational process. The research recommends a feasible alternative method to deal with inefficient cases.
    Źródło:
    Management Systems in Production Engineering; 2022, 1 (30); 74--79
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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