Method study
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This study demonstrates that the two-step cluster method is not only more effective than the k-means method in terms of clustering ability but also in data pre-processing. The study's results enable authorities to gain a more detailed understanding of typical traffic accident patterns in Hanoi.
15p vithomson 02-07-2024 0 0 Download
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The study sheds light on the role of word embeddings in constructing robust spam detection models, offering valuable guidance for model selection. The methodology, comparative analysis, and future directions are also presented in the paper.
5p vithomson 02-07-2024 0 0 Download
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This study seeks to introduce a more comprehensive assessment method than previous endeavors, particularly concerning the bond strength of FRP bars with various surface types within concrete, spanning normal, high-strength, and ultra-high-strength concrete.
16p vithomson 02-07-2024 0 0 Download
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This study proposes a constitutive mechanical law to model the behavior of the interface between a microcracked viscoelastic medium and an undamaged elastic body based on the homogenization method. The interface is modeled by a layer of zero thickness. The coupling between the homogenization technique and the Griffith’s theory is used to provide the effective behavior of the micro-cracked medium.
15p vithomson 02-07-2024 2 0 Download
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This study investigates how selecting different vehicle axle load survey data scenarios impacts the accuracy of pavement design and rehabilitation for roads in Vietnam. Evaluation of various data selection methods and their influence on pavement response using the current flexible pavement calculation procedure in Vietnam.
12p vithomson 02-07-2024 0 0 Download
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This study focuses on developing the predicted models of materials removal rate and tool wear rate by utilizing the response surface method (RSM) for the machining of SKD61 steel by EDM process with adding tungsten compound powder.
14p vithomson 02-07-2024 0 0 Download
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This study investigates the impact of roller compaction-induced vibration on the building structure of Ring road No.2 in Hanoi, Vietnam. The finite element method (Plaxis 2D) was applied to evaluate the impact of vibration on surrounding structures.
9p vithomson 02-07-2024 0 0 Download
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This study expands upon an existing one-dimensional model to develop an innovative two-dimensional numerical framework for simulating moisture propagation within wood. Utilizing the finite difference method, this approach offers a more detailed analysis of moisture behavior in wood structures.
15p vithomson 02-07-2024 0 0 Download
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Part 1 book "Sustainability, energy and architecture - Case studies in realizing green buildings" includes content: Vernacular tower architecture of Sana’a - Theory and method for deriving sustainable design guidelines, sustainable buildings in mediterranean area, key characteristics of top performing sustainable buildings from the perspective of the users, sustainable buildings and their relationship with humans and nature,... and other contents.
261p dianmotminh04 12-07-2024 1 0 Download
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Part 2 of ebook "Non-destructive testing in civil engineering 2000" provides readers with contents including: ultrasonic imaging of concrete members using an array system; influence of aggregates on ultrasonic elastic waves propagation in concrete; differential approach to ultrasonic testing of strength and homogeneity of concrete; measurements of thickness and crack depth in concrete by ultrasonic methods; basic study for an ultrasonic testing methods of PC grouting condition;...
381p tuongmothua 11-07-2024 1 1 Download
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In this study, the ZnO/g-C3 N4 composite was synthesized by a simple calcination method, and its photocatalytic efficiency was determined through the degradation of RhB under visible light.
7p vithomson 02-07-2024 1 0 Download
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In this study, it is split into two main steps. First, an analytical design is proposed to define the desired parameters with affects of different flux air gaps. Then, a finite element approach is introduced to simulate magnetic field quantities (such as inductance, fringing flux, magnetic flux density, electromagnetic force, current, voltage) of the SRs.
6p vialicene 02-07-2024 1 0 Download
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This study was qualitative in nature, and it used the phenomenological research design. It utilized the Interpretative Phenomenological Analysis (IPA) steps for its data analysis method.
15p vialicene 02-07-2024 1 0 Download
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The study investigates the attitudes and beliefs of pre-service teachers on home and school gardening as the basis for incorporating gardening activity in teacher education courses. Utilizing a descriptive research design, the data was gathered through a researcher-made survey and analyzed using various statistical methods such as percentage, mean, standard deviation, t-test for independent sample means, and Pearson r.
19p vialicene 02-07-2024 1 0 Download
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This study used a qualitative method of research employing a phenomenological method of investigation to gather necessary data through an interview guide from 8 informants who were purposively chosen.
12p vialicene 02-07-2024 0 0 Download
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This study used a quantitative technique method and was conducted using a questionnaire, focusing on how to give compliments and feedback about their appearance, assets, or work in English and Vietnamese. The findings of this study on compliments are useful in teaching English to Vietnamese as well as teaching Vietnamese to foreigners.
12p vialicene 02-07-2024 0 0 Download
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Dialectical logic is a scientific discipline that studies dialectical thinking, providing people with sharp thinking methods and creating a solid premise for effective awareness and practical activities. In the Innovation period, the contingent of cadres at all levels in Vietnam now plays a vitally important role in the process of building and developing the country.
13p vialicene 02-07-2024 1 0 Download
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This study aims to explore the challenges encountered by remote learners, the effectiveness of Project-Based Learning (PBL) applied in teaching speaking skills online, and learners’ attitudes towards the applied project. To do this, a mixed research method was employed.
19p vialicene 02-07-2024 1 0 Download
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This study investigates the experiences of peer observation among Vietnamese teachers of English and their perceptions of the benefits and challenges of peer observation. The study employed a quantitative research method to collect data.
15p vialicene 02-07-2024 0 0 Download
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In low-cost permanent magnet synchronous motor (PMSM) drive systems, the rotor position is usually estimated based on the back-electromotive force. However, such estimation methods have the common drawback of having large errors in low-speed regions. In order to solve that drawback in the startup phase, the I-f startup method is studied as its compatibility with the FOC control structure. The purpose of such a method is to make the motor accelerate and overcome the low-speed threshold.
8p vialicene 02-07-2024 1 0 Download