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In this paper, the effect of continuous carbon fibers (CCF) on the stiffness of 3D printed frames is investigated. Fused deposition modelling (FDM) technology is employed to build three typical frames with 15% of CCF and 85% poliamide 12 which is combined 10% short carbon fibers (PA12-CF) for compress testing.

7p viengfa 28-10-2024 0 0   Download

The main objective of this study is to predict accurately the loaddeflection of composite concrete bridges using two popular machine learning (ML) models namely Random Tree (RT) and Artificial Neural Network (ANN). Data from 83 track loading tests conducted on various bridges in Vietnam were collected and analyzed.

9p viengfa 28-10-2024 2 1   Download

Initial Public Offering (IPO) is considered a strategic decision of utmost importance for every business, especially companies that wish to list on the stock exchange. international. Using the Wilcoxon non-parametric test method, the study shows that IPO activities have a positive impact on the profits of businesses listed on the NASDAQ Global Select Market stock exchange in general and of VinFast in particular.

16p viling 11-10-2024 2 0   Download

This paper focuses on testing the applicability of various financial constraints measurements in the context of the Vietnamese market. Using a sample of non-financial quoted firms throughout 2010-2019; our paper contributes to current corporate finance literature with a novel and simple measurement of financial shortages that is effectively applicable for Vietnamese firms, namely the Age-size-cash flow- interest coverage index (ASCIC).

5p viling 11-10-2024 0 0   Download

The evaluation described in this paper indicates the difference between the predicted p-y curves considering cracking and non-cracking concrete sections, as well as significant differences in lateral deflection and bending moment when non-linear bending stiffness is considered.

7p vibecca 01-10-2024 1 0   Download

This paper presents a numerical modeling of RC shear walls using SSI3D finite element program. The objective of this research is to develop the full-scale model lab test of reinforced concrete (RC) shear wall. The wall is subjected to axially and laterally monotonic loading up to failure.

4p vibecca 01-10-2024 1 0   Download

This research investigates the properties of concrete utilizing coal mine waste rock (CMWR) as a substitute for river sand. The workability of fresh concrete is assessed through slump tests, revealing a decrease in a slump as the percentage of CMWR replacement increases.

13p vibecca 01-10-2024 0 0   Download

The paper's contributions can extend to optimizing concrete mixtures, formulating repair strategies, and improving structural assessments. Further research is suggested to improve the accuracy of simulations and investigate material properties under various conditions.

14p vibecca 01-10-2024 0 0   Download

In this study, the ITFT was used to investigate the fatigue behaviour of selected different types of flexible pavement including one unmodified and two polymer-modified asphalt mixtures. The main aim of this paper is to characterise fatigue behaviour of the selected various asphalt mixtures based on the ITFT test, after which analysis, discussion and conclusion will be included.

10p viyoko 01-10-2024 2 1   Download

We also applied our proposed model to a real life system of an islanded MG at small-scale with demand, PV power, and WTG power forecast, and the DEG output power is control variable. The results of test system have demonstrated the effectiveness of the proposed method.

9p viyoko 01-10-2024 4 2   Download

Pulsed Eddy Current (PEC) testing is a non-destructive testing (NDT) technique that has been widely used in various applications, including the detection and characterization of defects in metallic materials. The measurement of pulsed eddy current signals is essential for this purpose. This study proposes a novel multi-sensor PEC approach for improved defect detection.

6p viyoko 01-10-2024 2 2   Download

This research is aimed to find out the mistakes students at Asian High School (AHS) usually have while they have a Listening test. Since their faults happen quite a lot when they build an academic essay, this research also gives students best methods to improve their listening skills. Because of serious misunderstanding between vocabularies, grammars and styles of person speaking and the accent, this research points out types of person speaking, accent, and style which are demonstrated in this study as well.

31p xuanphongdacy09 28-09-2024 4 2   Download

Red lava rock is available in nature and is formed from volcanic eruptions. Volcanic rocks are composed of oxides of diverse metals and have considerable porosity. In this study, lava rock powder was ground to a specific size and dried to test its ability to adsorb heavy metals in water. The morphology of the stone powder was observed to show crystals of 100–300 nm in size clumping into particles of a few μm.

6p vikwong 29-09-2024 3 1   Download

The article presents some results of investigating the effective adsorption ratio of base oil SN 100 on silica gel, determination of physico-chemical, electrical properties, and voltage stability of the oil fraction which is separated from base oil SN 100 by adsorption method on silica gel with the appropriate ratio of silica gel/base oil SN 100 = 140/100.

5p vikwong 29-09-2024 2 1   Download

The purpose of this paper is to study the effects of tax optimization strategies used by Vietnamese companies for earning management through the use of temporary difference between accounting and taxable profit. Following the model of Cindy (2021), we leverage quantitative methods, built models and tested the impact of 08 factors on earning management (EM), tax optimization (ETR), deferred tax asset (DTA), deferred tax liability (DTL), deferred tax expense (DTE), company size (SIZE), financial leverage (LEV), return on assets (ROA), cash flow from operating activities (CFO).

13p viormkorn 27-09-2024 3 2   Download

Hypochromic microcytic anemia (HMA) is a prevalent and serious condition if left untreated. Haemograms, serum iron, and ferritin tests play crucial roles in diagnosis and in guiding the identification of underlying causes. This study was conducted with the objective of describing the haemogram characteristics and assessing serum iron and ferritin levels in patients with hypochromic microcytic anemia.

6p viormkorn 27-09-2024 1 1   Download

This study presents a series of soil concrete mix that is made of excavated soils, cement, lime and hemp fibers. An experimental program was carried out on the testing samples of soil concrete with different proportions of clayey soil and hemp fibers.

12p vifilm 24-09-2024 1 1   Download

Unexpected defects of concrete in a completed bored pile can arise during the construction stage. Therefore, post-construction testing of bored pile concrete is an important part of the design and construction process. The Cross-hole Sonic Logging (CSL) method has been the most widely used to examine the concrete quality.

11p vifilm 24-09-2024 3 1   Download

Vacuum consolidation preloading method (VCM) has been widely adopted as an effective solution for soft soil improvement over the world. Recently, VCM has been successfully applied for improving the geotechnical properties of dredged mud, which is normally dumped at reclamation area by hydraulic pumping.

10p viyoko 24-09-2024 1 1   Download

The main parameters of this device are calculated from the ratio of shear stress and normal stress at the fatigue of the asphalt concrete according to the Mohr-Coulomb failure criterion. Test results with asphalt specimens show that the device is stable, the acting vertical loads were smaller and more stable.

6p viyoko 24-09-2024 2 1   Download