Temperature effect

This study investigates the effect of various experimental conditions, such as initial pH, initial arsenic concentration, shaking temperature, and contact time, as well as thermodynamics models on the ability to remove arsenic from water.

8p viengfa 28-10-2024 0 0   Download

The present paper also includes strength prediction models that consider the influence of curing temperature. In addition, the Thermogravimetry analysis (TGA) used to determine the chemically bound water content in cement-treated soil and the X-ray diffraction (XRD) test to explain the chemical mechanism in cement-treated soil are also mentioned.

18p viengfa 28-10-2024 1 1   Download

This study focuses on investigating the effect of negative pressure on the structure and diffusion processes of Silicon dioxide at liquid nitrogen temperature. The insights gained from this study will serve as a foundation for future experimental research aimed at the development and manufacturing of advanced materials.

11p viengfa 28-10-2024 2 2   Download

In this research, Molecular Dynamics (MD) simulations were conducted to explore the temperature effect on the microstructure and phase transition of the Ag0.25Au0.75 alloy. The findings reveal that as the temperature rises, the material's phase transition switches from crystalline to liquid and vice versa.

9p viengfa 28-10-2024 4 1   Download

this paper focuses on the adhesion failure between the asphalt wearing course and the steel plate, and the temperature influence on the mechanical behavior of the orthotropic deck. Orthotropic steel bridge decks (OSBDs) have been widely used in long span bridges with many advantages, however, the long-term performance of the asphalt wearing course is still questionable.

9p vibecca 01-10-2024 2 1   Download

The study aims to illustrate the effectiveness of embedded strain gauges and temperature probes to follow the pavement responses with different traffic speeds, traffic loads and temperature conditions.

12p vibecca 01-10-2024 0 0   Download

The main goal of this study is to evaluate the effects of bulb treatment regimens (temperature, duration, and wrapping materials) on the growth and flowering of Hippeastrum hybridum cv. ‘Cam Tu’. The results could be used as the fundamental knowledge to control the expected flowering time of amaryllis.

7p vibecca 01-10-2024 2 1   Download

Resting egg production of rotifers provides critical advantages in larviculture of most fish species due to the reduction in the costs of labour and algae production. The study was conducted to investigate the effects of temperature on population growth and resting egg production of a freshwater rotifer, Brachionus calyciflorus, collected in Northern Vietnam.

8p vibecca 01-10-2024 2 2   Download

The aim of the present study was to evaluate the relationships between environmental temperatures and life-history traits of whitefly Bemisia tabaci on cassava in the Northern part of Vietnam.

9p vibecca 01-10-2024 2 2   Download

In this study, the experiments were conducted in various heating temperatures, holding times and cooling mediums for specimens made of S45C steel. Then, the relationship between the microstructure and the hardness of the steel was examined.

10p vibecca 01-10-2024 2 2   Download

This study aimed to assess the perception of H'mong farmers in the northwest mountainous region on climate change, its impacts on crop production, and their adaptation strategies. Reports on natural disaster events and their damages for the period ranging from 2012- 2021, together with meteorological data including daily temperature and precipitation for 1991-2021, were collected.

13p vibecca 01-10-2024 2 2   Download

In this article, acrylates, methacrylates and vinyl acetates have been used as monomers to synthesize PPDs by free-radical solution copolymerizations using initiators in the range of moderate temperatures.

6p vikwong 29-09-2024 1 1   Download

In the present study, Sb/C nanocomposites have been synthesized using citrate-gel method in combination with a carbonization process at different temperatures in N2 gas. At reasonable carbonization temperatures, the porous Sb/C nanocomposites with novel foam like-interconnected three-dimensional structure, which is built-up by nanosized Sb particles covered by a carbon shell, are obtained. A

7p vikwong 29-09-2024 5 1   Download

The reaction parameters including catalyst concentrations, reaction temperatures, molar ratio of p-anisidine/2,5- hexadione, and solvents, were systematically investigated. Almost 100% conversion was achieved under the optimized reaction conditions. The reusability of MOF-118 catalyst was studied. Furthermore, we demonstrated that the functional groups on aryl amines have strongly effect on the reaction rate.

7p vikwong 29-09-2024 6 1   Download

Therfore the aim of this research is to choose an appropriated ratio of initiator to produce a copolymer which can reduce pour point temperature of Diamond crude oil from 36˚C to 21˚C at dosage of 1.750ppmv.

6p vikwong 29-09-2024 2 1   Download

In this study, the effect of hydrothermal temperature of glass cullet (GC) and Ca(OH)2 was study. The batch-mixed sample with the Ca/Si 1.0 were hydrothermal reacted at different temperature such as 100, 150 and 180oC for 48 hour to find the suitable temperture to form the xonotlite.

5p vikwong 29-09-2024 3 1   Download

Zeolite seed-based mesoporous aluminosilicate material MSU-S is normally synthesized from pure chemicals. In the study, MSU-S material was synthesized using natural resources such as rice husk, and kaolin in Vietnam. Here, a systematic investigation is conducted to find the relationship between the synthesis conditions (aging time, hydrothermal time, hydrothermal temperature, pH environment) and the formation of mesoporous structure, as well as the material properties.

6p vikwong 29-09-2024 6 1   Download

In this study, instrumented indentation testing was conducted at room temperature for the investigation of the effect of strain rate on the hardness and yield strength in the weld zone of a commonly used structural steel, SM520.

9p vifilm 24-09-2024 3 1   Download

In comparison with fiber-reinforced polymer (FRP) composite, the textile-reinforced concrete (TRC) presents stability in mechanical performance at elevated temperatures thanks to a thermal protection layer by the cementitious matrix. This paper presents the experimental characterization and analytical modeling for fire performance of carbon TRC under the thermomechanical regime at constant tensile force.

12p vifilm 24-09-2024 4 1   Download

This study presents an investigation on the design of long reinforced concrete (RC) structures subjected to uniform temperature load by considering three RC frame building models with different lengths of 45 m, 135 m, and 270 m using Etabs.

13p vifilm 24-09-2024 2 1   Download