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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 1 1   Download

Asphalt concrete pavement often appears damaged such as rutting, fatigue crack, potholes, etc. at high air temperature, heavy rain in long time, or at locations with high traffic, large horizontal force, and poor-quality construction sites. T This paper presents an evaluation of shear bond strength of double-layer asphalt samples fabricated by shear test device with normal pressure.

8p viengfa 28-10-2024 2 1   Download

This paper presents the results of applying the Artificial Neural Network (ANN) model in determining pile bearing capacity. The traditional methods used to calculate the bearing capacity of piles still have many disadvantages that need to be overcome such as high cost, complicated calculation, time-consuming.

8p viengfa 28-10-2024 1 1   Download

This paper investigates the system performance of hybrid time-power switching based relaying (TPSR) energy harvesting enabled in the multisource half-duplex relaying network over the Rayleigh fading channel. The outage probability (OP) of the proposed system model with implementing maximal ratio combining (MRC) and selection combination (SC) technique at the receiver is presented and analyzed.

8p viling 11-10-2024 1 0   Download

This presentation will introduce the smart urban formation process with ideas and operational models. At the same time, we will introduce a smart city rating system based on the role of urban government and the community; thus, we will find the existing and building of the development orientation. Finally, we will present a case study to applying smart city model in Hanoi capital, Vietnam in the trend of sustainable development in the future.

8p vibecca 01-10-2024 5 1   Download

This paper presents a novel for Doppler frequency compensation in highspeed railway communication based on the results of estimating the train's velocity using machine learning algorithms. By leveraging advanced algorithm such as neural networks, our method dynamically predicts and compensates for Doppler shifts in real-time.

15p vibecca 01-10-2024 2 1   Download

Using Sentinel-1 image series with 10m resolution from the past to present by Principal Component Analysis (PCA) method for Ho Chi Minh City area, helping to assess flood risk due to canal leveling, slitting in some complicated times, narrows the space for water regulation.

12p vibecca 01-10-2024 2 1   Download

The paper presents the results of an analysis of the decrease in cryptographic strength of the most common symmetric ciphers, taking into account the development of cryptanalytic methods. The vector of the threat to the reduction of information confidentiality stored and processed in information systems in the long term has been determined.

7p viyoko 01-10-2024 4 1   Download

This article presents the main results of using a simulation tool to predict time and optimize the resource utilization for the transportation of materials processes in the construction project on Phu Quy island.

14p viyoko 01-10-2024 3 1   Download

The paper presented two X-ray fluorescence analysis methods applicable to element content analysis in mixed fertilizers. The applied addition method determined the content of each ingredient in the fertilizer. The fundamental parameter method was applied for quick analysis, and at the same time, the content of ingredients on the fertilizer production line.

7p vikwong 29-09-2024 5 1   Download

In this study, for the first time an isogeometric finite element formulation for bending analysis of functionally graded porous (FGP) plates reinforced by graphene platelets (GPLs) embedded in piezoelectric layers is presented. It is named as PFGP-GPLs for a short.

15p vifilm 24-09-2024 1 1   Download

This paper presents the data processing method using Hilbert Huang Transform (HHT) algorithm in determining a time-dependent frequencies of steel frame. The vibration experiment for steel frame was conducted in this study.

10p viyoko 24-09-2024 2 1   Download

This study presents an effective method based on long short-term memory to reduce the computational cost in nonlinear static analysis of functionally graded plates. Data points representing a load-deflection curve in a dataset are generated through isogeometric analysis.

17p vifaye 20-09-2024 1 1   Download

Bacterial meningitis is an acute central nervous infection with high mortality or permanent neurological sequelae if remained undiagnosed. The present study will therefore aim to set up in-house PCR assays for diagnosis of six pathogens causing the disease including H. influenzae type b, S. pneumoniae, N. meningitidis, S. suis serotype 2, E. coli and S. aureus.

7p vifaye 20-09-2024 2 1   Download

Distichochlamys citrea (DC) is an endemic ginger species used in treating associatedheart diseases in traditional medicine in Vietnam. However, scientific evidence to support the local use of this plant was limited. The present study aimed to investigate the antioxidant and antithrombotic activities of D. citrea extracts for the first time. The antioxidant activity of DC extracts was assessed by scavenging DPPH radical and measuring their total phenolic content (TPC). The antithrombotic activity was evaluated by inhibiting platelet aggregation and prolonging blood coagulation.

17p xuanphongdacy06 18-09-2024 3 1   Download

The motion equation of a one-degree-of-freedom system when subjected to earthquakes is usually not solved by analytic methods. This problem can only be solved through the time step method, when integrating differential equations. This paper is devoted to presenting a numerical solution for a seismic analysis problem of a highway bridge pier with high damping rubber bearings under earthquakes.

14p vifaye 20-09-2024 2 1   Download

The author's article presented the theoretical basis system related to quality 4.0. At the same time, based on VCCI's business survey data report, the author presented my opinions and personal assessment about opportunities and challenges of Vietnamese enterprises. Then, the author uses the change management mindset required by ISO 9001:2015 and the PDCA cycle in quality management to propose a roadmap for implementing digital transformation in quality management.

14p toduongg 24-08-2024 5 1   Download

Acute myocardial infarction may occur following cocaine abuse. Cocaine-induced infarction is particularly common in younger patients aged 18 to 45 years old. Patients may or may not have evidence of coronary artery disease at the time of symptom presentation.

6p vinatisu 29-08-2024 0 0   Download

Bài giảng "Digital system" Chương 5 - Linh kiện mạch tuần tự, được biên soạn gồm các nội dung chính sau: Mạch tuần tự; phần tử nhớ latch; clock và clocked-flipflop; đồng bộ; ngõ nhập bất đồng bộ; vấn đề timing; ứng dụng flipflop. Mời các bạn cùng tham khảo!

77p sanhobien72 22-07-2024 3 2   Download

The result pointed out that only 5 g of soft tissue from N. glans (equivalent to 2–3 specimens) containing maximum toxicity detected in the present study may cause human death if consumed. Fhe first time, this study identified TTXs in the gastropods as a causative toxin in the poisoning in Vietnam. Moreover, 65.5% of studied specimens with high toxicity higher than 100 MU/g, including 16.1%, showing extremely high toxicity (> 1,000 MU/g). The results suggested that this gastropod is quite dangerous for human consumption and should be alerted to public awareness.

6p dianmotminh02 03-05-2024 7 1   Download