Journal of Applied Science and Technology
3030-4830
Cơ quản chủ quản: N/A
Các bài báo tiêu biểu
RESEARCH ON THE DESIGN AND EXPERIMENTAL TESTING OF A CINNAMON BARK DRYING DEVICE BASED ON THE PRINCIPLE OF REVERSE DRYING OF THE DRYING AGENT
Tập 47 - Trang 46-51 - 2025
In Vietnam today, cinnamon bark after being harvested from the tree (peeled from
the tree) will be dried by naturally drying under the sun. In addition to the
natural drying method, no processing corporation has been seen using a dryer.
When drying under the sun, it will depend a lot on the weather, moreover, it is
easily covered with dust and affected by passing animals, etc. Therefore, the
appli...
#Cinnamon dryer #cinnamon drying process #drying kinetics of cinnamon #fixed bed dryer #cinnamon bark
VELOCITY-DEPENDENT DEFORMATION MECHANISM OF FeNiCrCoTi HIGH-ENTROPY ALLOY UNDER VIBRATION-ASSISTED MACHINING
Tập 48 - Trang 12-18 - 2025
Vibration-assisted machining has shown great potential for improving the
processing of hard and tough materials, but its mechanisms in high-entropy
alloys (HEAs) remain unclear. In this study, molecular dynamics simulations are
employed to investigate the velocity-dependent behavior of FeNiCrCoTi
monocrystal during vibration-assisted nano-machining. The study examines
machining forces, shear strai...
#vibration-assisted machining #MD simulation #velocity #high-entropy alloy
ASSESSMENT OF THE STRENGTH AND ELONGATION PROPERTIES OF SILK AND NYLON SURGICAL SUTURES ACROSS DIFFERENT SUTURE CALIBERS
Tập 47 - Trang 77-82 - 2025
This paper studies the tensile strength and elongation at break of two common
non-absorbable surgical sutures currently used in skin, soft tissue, and
surgical wound suturing techniques: Silk surgical suture (natural surgical
suture) and Nylon surgical suture (synthetic surgical suture) when changing
suture sizes to 5/0; 4/0; 3/0; and 2/0. Tests were conducted under three
conditions: before attach...
#Silk surgical suture #Nylon surgical suture #tensile strength #elongation #suture size
USING ROLE-PLAYING ACTIVITIES TO ENHANCE SPEAKING SKILLS OF SECOND-YEAR NON-ENGLISH MAJOR STUDENTS: AN ACTION RESEARCH AT A UNIVERSITY IN HUNG YEN
Tập 48 - Trang 68-74 - 2025
Speaking English is widely regarded as one of the most challenging skills for
non-English major students because it requires linguistic knowledge, confidence,
and fluency. This study was conducted as a classroom-based action research
project to investigate the effects of role-playing activities on students’
participation and speaking performance in English-speaking lessons. The research
was carrie...
#role-playing activities; speaking skills; student engagement; action research; non-English major students
INFLUENCE OF SUBSTRATE TEMPERATURE ON THE GROWTH OF Ti₄₅Ni₅₅ FILMS ON Ni SURFACES
Tập 47 - Trang 18-24 - 2025
Molecular dynamics simulations were employed to examine the influence of
substrate temperature on the growth behavior of Ti₄₅Ni₅₅ thin films on stepped
Ni(001) surfaces. Deposition cases were performed over a temperature range from
300 K to 1100 K under constant deposition energy and incident angle conditions.
The results reveal that elevated temperatures facilitate interfacial
intermixing, induce...
#Film #Structure #Interface #Molecular dynamics
AN EFFECTIVE APPROACH FOR LOW-ALTITUDE AERIAL OBJECT DETECTION
Tập 48 - Trang 58-61 - 2025
Over the past decade, advances in aerial surveillance systems have driven
increasing interest in low-altitude flying object detection within the computer
vision community. However, the effectiveness of detecting and classifying flying
objects, such as unmanned aerial vehicles (UAVs) and kites, is strongly
influenced by the availability of specialized datasets, which remain limited. To
overcome thi...
#Kite #object detection #UAV
RESEARCH AND DEVELOPMENT OF AN AUTONOMOUS MOBILE ROBOT FOR EDUCATIONAL SUPPORT WITH INTELLIGENT RECOGNITION AND DIALOGUE FUNCTIONS
Tập 48 - Trang 75-81 - 2025
In the context of educational digital transformation, the application of
autonomous mobile robots for training support has been increasingly
investigated. However, most existing studies have mainly focused on navigation,
while user identification and dialogue interaction for educational purposes have
not been sufficiently addressed. In this study, an autonomous mobile robot
integrated with Light D...
#Artificial intelligence #autonomous mobile robot #Light Detection and Ranging Delta-2A #natural language dialogue #smart education
POSITION-DEPENDENT MECHANICAL PROPERTIES OF GRAPHENE IN AlCrFeCuNi HIGH-ENTROPY ALLOY DURING NANOINDENTATION
Tập 47 - Trang 32-38 - 2025
This study investigates the nanoindentation behavior of pure AlCrFeCuNi
high-entropy alloy (HEA) and AlCrFeCuNi HEA/graphene composites through
molecular dynamics simulations, with an emphasis on the effect of graphene
embedding depth. Compared to the pure AlCrFeCuNi HEA, AlCrFeCuNi HEA/ graphene
composites exhibit significantly improved mechanical response when graphene is
positioned near the sur...
#Graphene #high-entropy alloy #composite #indentation #MD simulation
THE EFFECT OF INDENTER SIZE ON THE DEFORMATION MECHANISM AND DISLOCATION MOTION IN CoCrFeNiCu HEA COATING ON Cu SUBSTRATE USING MOLECULAR DYNAMICS SIMULATION
Tập 47 - Trang 5-10 - 2025
In this study, we used molecular dynamics (MD) simulations to analyze the
deformation behavior of CoCrFeNiCu HEA coatings on Cu substrates, with the
radius of the indenter as a simulation variable. Employing dislocation
extraction analysis (DXA) and common neighbor analysis (CNA), we evaluated the
change in the deformation morphology of atoms subjected to stress shear strain >
0.1. At the same tim...
#Molecular dynamics #CuCrCoFeNi HEA coating #Nanoindentation #Hirth dislocations
GREY-BASED MULTI-OBJECTIVE OPTIMIZATION OF MACHINING FACTORS AFFECTING SURFACE ROUGHNESS AND MATERIAL REMOVAL RATE IN STAINLESS STEEL
Tập 47 - Trang 11-17 - 2025
Currently, surface roughness and material removal rate (MRR) are two key
indicators that directly impact both the service life of machine components and
overall machining productivity. Achieving an optimal balance between surface
quality and material removal efficiency through the selection of appropriate
cutting parameters has become a crucial objective for manufacturers. This study
investigates ...
#Optimization #Surface Roughness #Material Removal Rate #Stainless Steel