Mechanics

The nonlinear dynamic buckling responses of functionally graded graphene platelet reinforced composite (FG-GPLRC) cylindrical and sinusoid panels with porous core are presented in this paper. The governing formulations are established by applying the nonlinear higher-order shear deformation theory (HSDT).

10p viengfa 28-10-2024 2 2   Download

This article provides an overview of the mechanism and performance operating cycle of internal combustion engines using water-fuel emulsions and the efficiency, economy, and environmental friendliness of this fuel type for automobiles.

12p viengfa 28-10-2024 2 2   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

Buckling and postbuckling behaviors of porous functionally graded graphene platelets-reinforced composite (porous FG-GPLRC) cylindrical shells with stiffeners subjected to external pressures are presented in this paper. Three distribution types of porosity in the shells are considered. The smeared technique for stiffeners is employed to model the mechanical behaviors of the stiffened shells.

13p viengfa 28-10-2024 4 2   Download

This review paper aims to summarize the existing research to identify the main factors influencing the mechanical characteristics of cement-treated soil, specifically unconfined compressive strength (UCS), tensile strength, and modulus of elasticity.

17p viengfa 28-10-2024 3 2   Download

This article presents a numerical investigation focusing on the temperature distribution of first-stage turbine rotor blades that do not feature internal cooling channels. The results indicate the regions of peak temperatures and evaluate rotor blade strength.

10p viengfa 28-10-2024 2 2   Download

This paper presents the results of laboratory experiments to determine the influence of 4 different fillers (including conventional stone powder, Portland cement, rice husk ash, and fly ash) on some mechanical properties of asphalt concrete with Dmax of 12.5 (AC12.5).

8p viengfa 28-10-2024 2 1   Download

The study was therefore conducted to gain more insights into EFL teaching practices at Vietnamese high schools under the influences of the NHSGE English tests. Two main aspects of EFL teaching, including “what and how teachers teach” in the centralized educational context of Vietnam would be explored.

20p viling 11-10-2024 0 0   Download

In kinematic synthesis and analysis of planar mechanisms the designer must define a geometry and set of motions for a design task. This paper will focus on how to determine the forces or torques acting on the planar mechanism by numerical method when acceleration and dynamic properties of the linkage are known.

9p viling 11-10-2024 2 1   Download

Medicines in the DPP4 inhibitor class include sitagliptin, saxagliptin, linagliptin, and alogliptin. However, research data on the mechanism of action of the active ingredients of WBG on DPP4 are also limited. Therefore, this in silico study aimed to idenfy acve ingredients with strong or potential effects on the DPP4 target for andiabec acvity of WBG.

8p viling 11-10-2024 1 0   Download

Comparison of the prognostic value of recovery of the ASPECTS score compared with perfusion imaging in patients with acute anterior circulation cerebral infarction undergoing thrombectomy.

7p viling 11-10-2024 2 1   Download

Natural products have been gaining popularity in recent years as a safe skin-safe alternative solution to synthetic products on the market. In particular, natural ingredients have been found to have skinwhitening properties by inhibiting melanin production and reducing hyperpigmentation. This review provides the analysis of some mechanisms and effectiveness of natural products in achieving even skin tone and reducing the appearance of dark spots.

8p vifilm 11-10-2024 1 0   Download

This study focuses mainly on the normal stresses that are caused by applied forces. As a case study, the present work aims at investigating the bi-dimensional contact mechanics of wavy cosinusoidal anisotropic finite planes. To achieve this objective, results on the displacement and stress component are first calculated with the help of the Lekhnitskii formalism.

9p vibecca 01-10-2024 1 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

This article presents research on the practical development, the impacts, and the application of Industry 4.0 technologies in the real estate market in Vietnam. Through this examination, it evaluates, forecasts, and recommends solutions to foster a healthy real estate market and improve the mechanisms of real estate market development in the foreseeable future.

7p vibecca 01-10-2024 4 2   Download

This paper presents experimental and numerical investigations to assess the relative fire structural resistance of thermo-mechanically compressed (or densified) spruce wood. The simulated thermal profiles, the mass loss as well as the charring depths were compared to the experimented results showing a fairly good agreement.

5p vibecca 01-10-2024 0 0   Download

In this study, a numerical model was developed to simulate the mechanical behavior of an orthotropic steel bridge deck (OSBD) strengthened with UHPC under localized loads based on the five-point bending beam test configuration.

10p vibecca 01-10-2024 2 0   Download

Wood, an environmentally friendly construction material, is characterized by a critical attribute that significantly influences its mechanical properties and durability: its moisture absorption behavior. This study expands upon an existing one-dimensional model to develop an innovative two-dimensional numerical framework for simulating moisture propagation within wood.

15p vibecca 01-10-2024 3 0   Download

A truss model supplementing the concrete contribution is introduced in this paper to predict the shear strength of concrete beams reinforced with various types of FRP bars. The contributions from truss and direct strut mechanisms are considered in the analytical model. The truss model which has struts at various angles considering concrete contribution is derived in this paper.

13p vibecca 01-10-2024 1 0   Download

The scope of this work is threefold: (i) to develop a new model within the framework of hydro-mechanical – damage coupling that can account for the coupling between microcrack (damage), water diffusion and shrinkage at stake for concrete secondary creep; (ii) to implement it in an existing hydro-damage lattice model; (iii) to validate the model with respect to the flexural creep of Fiber Reinforced Concrete (FRC) and Mortars under high sustained load level.

12p vibecca 01-10-2024 2 1   Download