Concentration ratios

This report studies the impact of externally bonded WRGFRP and UDCGFRP laminates on the test column strength, deformation and ductility to investigate the GFRP laminates composite action at various load levels and comprehend the cracking and failure mechanisms involved.

14p viamancio 04-06-2024 2 0   Download

This paper presents a method for establishing the exact receptance function of a tapered axially functionally graded (AFG) beam with nonlinear ratios of properties using the Adomian method. In current papers, the Adomian method was applied for linearly tapered beams where the geometric series was used conveniently.

22p dianmotminh02 03-05-2024 3 2   Download

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 3 2   Download

After years of concentrated research efforts, the exact cause of Crohn’s disease (CD) remains unknown. Its accurate diagnosis, however, helps in management and preventing the onset of disease. Genomewide association studies have identified 241 CD loci, but these carry small log odds ratios and are thus diagnostically uninformative.

15p vibransone 28-03-2024 3 1   Download

The plasma renin concentration (PRC) assay directly measures the concentration of active renin in the plasma, independent of the amount of angiotensinogen. The aim of this study was to determine the correlation between PRC and PRA, PAC to PRC and PAC to PRA ratios.

9p vilarry 12-03-2024 4 2   Download

In this study, the crude polysaccharides from fruiting bodies of Vietnamese Lingzhi collected from the South of Vietnam were analyzed and compared based on monitoring the absorbance of the samples in 490 nm, as well as enzymatic, microwave and ultrasonic methods with different surveyed parameters, such as: concentration of enzyme, microwave frequencies, extraction time, extraction temperature, ratio of sample and water.

5p viisac 23-09-2023 5 1   Download

In this study, hydrogels based on in situ crosslinking between oxidized alginate (OA) and N,Ocarboxymethyl chitosan (NOCC) in combination with β-tricalcium phosphate (β-TCP) were prepared using different OA concentrations and OA to NOCC ratios.

15p viberbers 09-08-2023 3 3   Download

We report on the improved stability and yield of silver nanorods with well controlled aspect ratios synthesized using a modified seed mediated approach conducted at room temperature. It is found that the longitudinal surface plasmon resonance of these nanoparticles can be tuned in the spectral range 400e 700 nm by varying the concentration of seed particles.

10p viberbers 09-08-2023 7 4   Download

In this study, several factors affecting Tetragenococcus halophilus CH6-2 cell survival rate in spray drying process including growth conditions, protective agents, and stress adaption were investigated. T. halophilus CH6-2, which was grown in different media, was mixed with different protective agents or at different ratios of cell concentration to protective agents or was subjected to stress adaption before spray drying.

10p viannee 02-08-2023 6 3   Download

In this work, the influences of boric acid and high alumina cement used as modifying additives on the formation of CaO∙Al2O3 and CaO∙2Al2O3 were studied. Herein, commercially available chalk of the M-90 label and technical alumina of the G-0 label were utilized as initial raw materials. Heat treatment of powder mixtures with various concentrations of modifying additives was carried out in the temperature range of 1250-1350oC with an isothermal exposure times of 1h and 2h.

8p nhanchienthien 25-07-2023 10 3   Download

In this study, CNC was isolated from used office papers by means of acid hydrolysis. For CNC/PEO fiber fabrication process, CNC was added to PEO aqueous solution to produce CNC/PEO fibers by electrospinning. In this process, several parameters were investigated, namely PEO concentration, CNC:PEO ratio, the applied voltage, and the distance between the tip and the collector on the morphology of electrospun CNC/PEO fibers.

6p viargus 03-03-2023 3 2   Download

The popularity of ice cream is increasing in tropical countries such as in Thailand. Purple sweet has high anthocyanin content which provides an attractive purple appearance for ice cream consumption. The purposes of this study were to determine the effects of the ratio of purple sweet potato mash and water, and concentration of carboxymethyl cellulose (CMC) as a stabilizer on the properties of ice cream.

8p vicedric 08-02-2023 8 3   Download

In this study, the biosynthesis of Au and Ag nanoparticles (AuNp and AgNp) with a green chemistry approach was performed by using bioextracts of various fruits and vegetables (Lycopersicon esculentum (LE), Cucumis sativus (CS), Malus domestica (MD), Cucurbita pepo (CP), Apiumgraveolens var. rapaceum (AVR), Prunus cerasifera (PC), Oleraceae var. botrytis (OVB)).

16p lyhuyenthu 31-01-2023 4 2   Download

The effects of pH, ionic strength and polymer ratio in the complexation of chitosan (CHI) with different anionic polysaccharides, namely gum Arabic (GA), sodium alginate (ALG) and κ-carrageenan (CRG), were investigated. This was made using titration techniques, which allowed the determination of stoichiometry and binding constant of complexes.

11p vihermione 06-01-2023 13 2   Download

Chitooligosaccharides (COS) have garnered great attention in the field of human healthcare. The prebiotic activities and antiglycation of COS were investigated using a combination of in vitro and in vivo studies. COS supplementation dramatically increased the levels of acetic acid, while reducing the concentrations of propionic and butyric acids.

9p viginny 30-12-2022 11 2   Download

Compound-specific carbon isotope analysis (CSIA) is a powerful tool to track the origin and fate of organic subsurface contaminants including petroleum and chlorinated hydrocarbons and is typically applied to water samples. However, soil can form a significant contaminant reservoir.

12p viginny 23-12-2022 11 3   Download

This study examined the effects of different surimi-to-silver catfish ratios (0/100, 20/80, 40/60, 60/40, 80/20, and 100/0) and potato starch concentrations (3, 5, and 7%) on the properties of fish sausage. The surimi-to-catfish ratio affected the moisture, fat, protein, and ash content of the sausage; as well as cooking loss, greenness, lightness, and hardness.

15p eclipsewinn 16-11-2022 34 4   Download

The pomelo peel occupies 50% of the fruit mass in pomelo juice processing. It contains large amounts of phenolic compounds, which may provide benefits to human health. These components should be isolated. In this study, the effects of ethanol concentrations, material-to-solvent ratios (g/mL), temperatures and sonication time on total phenolic content (TPC), naringin content and antioxidant capacity (using DPPH assay) of extract solution was evaluated.

6p viporsche 25-10-2022 10 3   Download

To evaluate the relationship between serum levels of TNF-α, IL-6, IL-10 and the severity in patients with sepsis caused by Gram-negative bacteria. Subjects and methods: 110 inpatients treated at Hospital E and Military Hospital 103, were diagnosed with sepsis with Gram-negative bacteria, whose serum levels of TNF-α, IL-6, IL-10 were quantified by ELISA technique.

7p viangelamerkel 18-07-2022 8 2   Download

The activity of n-hexane isomerization with 0,8 %kl Pd/HZSM-5 was studied in a micro reactor in the temperature range of 225-325oC at 0,1 Mpa with the molar ratio H2/ hydrocarbon of 5.92, n-hexane concentration of 9.2 %mol, GHSV 2698 h-1 at atmospheric pressure.

5p vichristinelagarde 04-07-2022 7 1   Download