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This work aimed to introduce nanosized SiO2 into the CS matrix to produce three-dimensional (3D) scaffolds by solvent casting combined with salt leaching using NaCl as a porogen agent. The amount of the porogen to polymer was varied to produce 3D CS/SiO2 scaffolds with suitable pore sizes and porosity.
7p dianmotminh02 03-05-2024 5 2 Download
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In this study, we used the reliable GC-FID/MS technique to analyze the methyl ester derivatives of 37 different kinds of fatty acids. The results showed that high saturated fat concentration in all samples was mostly palmitic acid, whereas the low unsaturated fatty acid content in the cis form was primarily oleic acid and linoleic acid. The amount of monounsaturated and polyunsaturated fats is quite low.
6p dianmotminh02 03-05-2024 1 1 Download
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In this work, gold nanorods (AuNRs) with well-controlled aspect ratios were prepared using a modified seedgrowth method and covered by TiO2 layers through the hydrothermal reaction to improve stability. Integrating TiO2 with plasmonic rod-like gold nanoparticles could enhance their photo activity by the local surface plasmon resonance (LSPR) effect. AuNRs aspect ratios were controlled by varying the amount of seed solution, reducing agents, surfactant (CTAB), and titanium (IV) but oxide.
7p dianmotminh02 03-05-2024 4 2 Download
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The amount of waste generated is increasing in both quantity and complexity, in line with the level of economic development, but the land area available for solid waste treatment is limited. Residents' attitudes and willingness to pay (WTP) regarding waste segregation at source and recycling were investigated in this study through a survey using questionnaires conducted in the Hiep Hoa district, Bac Giang province.
10p dianmotminh02 03-05-2024 6 2 Download
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Once entirely the domain of space-borne applications, the effects of high energy charged particles on electronics systems is now also a concern for terrestrial devices. Reconfigurable components such as FPGAs are particularly vulnerable to radiation single event effects (SEU) as they carry a large amount of memory within a relatively small amount of circuit area. This thesis presents a Silicon on Insulator (SOI) based configuration memory system in a radiation hard reconfiguration system.
101p runthenight05 01-03-2023 8 3 Download
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The aim of this research is to produce information on decision making in relation to fertiliser use. This information can be used in the Game Theory model to calculate optimal strategies on phosphorus fertiliser application amounts for the individuals within the group. If the results indicate a benefit to the individual and the community as a whole, and are seen as practical, then on a catchment wide basis this should lead to changes in management practices that will minimise phosphorus pollution of the Hopkins River catchment’s waterways.
174p runthenight07 01-03-2023 4 2 Download
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This thesis aims to build on the current body of knowledge relating to the tertiary radiation contributions within an interventional radiology suite. An accurate estimation of tertiary radiation requires knowledge of the amount of patient-scattered radiation incident onto the concrete ceiling (the patient-scattered air kerma) and the fraction of the radiation incident on concrete that is scattered back towards the point of interest (the concrete-scattered air kerma).
125p runthenight04 02-02-2023 7 2 Download
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The objective of this project was to develop \(Ti{O_2}\) based multifunctional substrates through silver decoration, while simultaneously enhancing the photocatalytic performance of \(Ti{O_2}\) in the substrate. Employing Ag nanoparticles introduced additional functionality to the system, namely surface-enhanced Raman scattering (SERS), thus enabling the detection of trace amounts of organic molecules prior to their degradation, all with the same substrate.
123p runthenight04 02-02-2023 5 1 Download
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The objective of the present research is to explore strategies for trade union revitalisation in Vietnam. The attempts by trade unions in developed countries to respond to the issues they face, such as the decline in union density, have attracted a significant amount of academic research attention since the 1970s (Fiorito 2004; Gahan & Bell 1999). These attempts have been labelled either as union revitalisation or union renewal (Lévesque & Murray 2006).
282p runthenight04 02-02-2023 12 3 Download
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This study examined the phenomenon of residual protection by suspending the operation of established ICCP systems in two wharves located in southern Victoria and monitoring the effect on the passivity of the steel via electrochemical testing. The results of the study confirm that the steel in selected elements within these structures remained passive once the ICCP system was interrupted. The primary factor in determining which elements remained passive, and the duration of passivity was the amount of charge injected into the element over the life of the ICCP system.
290p runthenight04 02-02-2023 3 2 Download
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Vietnam has many traditional copper casting craft villages from the North to the South, which resulting in large amounts of copper smelter slag containing Zn, Cu, Al, etc. In this study, zinc oxide and copper metal have been recovered from brass smelter slag (71.80 wt.% ZnO and 10.32 wt.% CuO) by a hydrometallurgical process.
8p vispyker 16-11-2022 4 1 Download
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This thesis reports research conducted to: Determine antioxidant capacity of dry and fresh calyxes of Hibiscus sabdariffa; Validate the HPLC method for analysis of the key antioxidant phytochemicals of Hibiscus sabdariffa; Quantify the amounts of key antioxidants in the extracts of Hibiscus sabdariffa calyxes.
130p runordie3 06-07-2022 8 3 Download
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Fractions yielded from Phellinus gilvus fruiting bodies by liquid-liquid partition of methanol extract contained various bioactive compounds such as phenolics, flavonoids and terpenes. Butanol, water and ethyl acetate fractions had large amount of phenolics, 158.12 - 247.31 mg of gallic acid equivalents (GAE)/g and low amount of flavonoids, 21.74 - 36.05 mg of quercetin equivalents (QE)/g.
9p vimelindagates 18-07-2022 10 3 Download
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The research article "Polyester production by halophilic and halotolerant bacterial strains obtained from mangrove soil samples located in Northern Vietnam" reports halophilic and halotolerant bacteria isolated from mangrove forests located in Northern Vietnam. Several of these bacteria were able to synthesize polyhydroxyalkanoates (PHAs). PHAs are polyesters stored by microorganisms under the presence of considerable amounts of a carbon source and deficiency of other essential nutrient such as nitrogen or phosphorous.
12p runordie3 27-06-2022 10 3 Download
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This study aims to answer the three following questions: what are the main factors losing students' interests in reading homeworks; what are techniques used by teachers to motivate their students in reading homework; what are factors that assist teachers to assign appropriately reading homework.
75p linyanjun_2408 21-04-2022 26 6 Download
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Herein, a combined analysis of Global Navigation Satellite System-derived strain rate maps, in accordance with recent seismicity, was presented to reveal that the N-S extension is accommodated primarily by strike-slip faulting of the İzmir-Balıkesir Transfer Zone (İBTZ), where a counter clockwise rotation (~25–100°/Myr) along the vertical axis is dominant. The results indicated that strike-slip segments within the İBTZ show variable transport sense and amount of slip along them, and they connect by hard linkage relay ramps with the dip to oblique slip normal faults.
18p tanmocphong 29-01-2022 19 1 Download
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The noncondensable gases in most geothermal resources include CO2 and smaller amounts of other gases. Currently, the worldwide geothermal power is a small sector within the energy industry, and CO2 emissions related to the utilisation of geothermal resources are consequently small. In some countries, however, such as Turkey and Iceland, geothermal energy production contributes significantly to their energy budget, and their CO2 emissions are relatively significant.
15p tanmocphong 29-01-2022 11 1 Download
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An increasing amount of municipal solid waste needs an effective waste management system to provide reliable service, but in reality this has failed to respond to the demand. Partnership is considered as a potential solution that can increase waste management service performance.
7p guernsey 28-12-2021 9 0 Download
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The results show that with a total amount of 179.08 tons of PM10 and 163.3 tons of PM2.5 dispersed into the environment, causing local air pollution in the southern area of the city, where there is a large cultivated area, the rice-yield is high and the amount of straw burned in the field accounts for the majority.
10p meyerowitz 25-12-2021 10 0 Download
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The thesis contributes on quick solving a big amount of work, which is in fault classification and location at the request of the Power Sector. Besides, the thesis supplies the knowledge supporting for operation, increasing the effectiveness of relay’s utilization.
28p guitaracoustic02 08-12-2021 16 2 Download