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0. Complete issue
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1. The development of a virtual reality adventure game to prepare for a tsunami disaster
- Pages: 5-14
- Chawalit Doungutha, Tatiya Theppituck
- Abstract | Download | View
Abstract
This research aimed to study and analyse the interaction between humans
and a tsunami disaster simulation. Besides, it aimed to develop a virtual reality
(VR) adventure game in regard to preparing for a tsunami disaster caused
by an earthquake. It also assessed the effectiveness of virtual reality (VR)
through three perceptions, namely visual perception, auditory perception,
and kinesthetic perception with the connection between the human user
and the Oculus quest 1 (VR glasses) to create virtual reality that was easy to
understand and reflected interesting storytelling accompanied by beautiful
patterns. The research objectives were 1) to study, collect, and analyse
data related to the concept of creating virtual reality (VR), 2) to design and
create virtual reality (VR) adventure game, and 3) to test and assess the
perceptions of virtual reality (VR) to prepare for a tsunami disaster caused
by an earthquake. The results of studies and analysis based on the learning
style theory and participants’ behaviour showed that the behaviour was often
instilled from experiences that they had gained. This created clarity in the role
of the participants and helped them learn and practice using virtual reality
technology in training and deal with tsunami disasters caused by earthquakes.
The results of the perception assessment of the virtual reality (VR) prototype,
overall, indicated that the adventure game in a virtual reality (VR) setting to
prepare for a tsunami disaster caused by an earthquake was feasible for use.
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2. Legibility: Sinhala typeface features for Directional Informative Sign Boards
- Pages: 15-25
- Shyanika Eramudugolla, Sumanthri Samarawickrama
- Abstract | Download | View
Abstract
Typefaces designed for the purpose of directional informative sign boards
(DISB) communicate legible information related to drivers and passengers to
navigate within road systems to: maintain road discipline and assist drivers
to make instant decisions within a short period while operating a vehicle. The
legibility of these typefaces works as a fundamental requirement. The reader's
preference test (RPT) highlights that a typeface is unique due to its visual
features–the anatomy of a typeface and it influences legibility performance,
comprehension, memorability, priming, persuasion, perceptual fluency, and
practical usage. This visual perception and the neurotic process of connecting
human vision and brain is the intellectual cognition between; reader and
information that acutely affects the reader to process information. When
considering the amount of research work towards the advancement of
DISB and typefaces designed for this purpose is at large within the western
context, and more evident in Latin script but lacks in scripts such as Sinhala
and Tamil within the Eastern regions. To fill this knowledge gap, the research
contributes to Sinhala script discussed within the domain of typography
research and proposes a draft typeface for Sri Lankan DISB. Considering
legibility to be a required key factor in typefaces designed for the purpose of
DISB the research methodology was structured into three stages. The first
stage reviews legibility test methods, its measurements, testable factors
usability and identifies the most relevant test to analyse typeface features.
This section concludes by identifying RPT as the most relevant test with two
variables: typeface personality traits and anatomy. Second stage adopts the
two variables and tests six Sinhala typefaces that contain personality traits
required for DISBs. It concludes with the identification of three typefaces
that contain the required personality traits for DISB. The third stage analyses
the anatomy of the three typefaces and proposes a draft Sinhala typeface
for DISB. This stage redefines the two variables specific to Sinhala script and
typography research. The stage concludes with a summary of the anatomical
features of the proposed draft typeface and confirms a list of anatomical features
required for Sri Lankan DISBs. The research also contributes to developing
a methodology to analyse Sinhala typefaces, and draft new typefaces
for specified communicative purposes. As for further research, the research
the draft typeface to be developed and tested to font and to adapt to similar
scripts and advanced typography research.
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3. Developing prototypes of the assistant opener of packaging for consumer accessibility
- Pages: 27-36
- Somporn Nilmanee
- Abstract | Download | View
Abstract
The purpose of this research was to focus on the design of packaging
openers for consumer access to the contents. The packaging opener was
created to make opening easier and safer. In this study, online questionnaires
were used to investigate the problems and solutions of user experiences
when opening packaging. According to the findings, a major issue
among the responding participants is that they should have a strong hand
force. However, the hand force not only had enough energy to open the
packaging, but it was also unable to open the closure at the specified location.
When participants encountered opening problems, they preferred to
use an assistant tool rather than ask for assistance. The risk of packaging
materials, scissors, knives, and wrist and finger twisting occurred during
opening packaging. According to the respondents' experiences, the four
functions of the packaging opener were integrated together for the corrugated
box, ring-pull a can, lug cap closure, and flexible packaging. As a
result, the newly designed packaging opener required less opening force,
a safer hold, and optimized hand ergonomics. The attractive configuration
and comfortable grip were also important factors to consider when
designing the packaging openers in this study. Opener prototypes were
modelled using SolidWorks and were formed by a 3D printer. The FSUDE
system was employed to evaluate the functions, safety, usability, design,
and engineering of all prototypes. Based on the results of this study, form,
dimension, surface, friction, and grip posture were factors affecting torque
force exertion, slitting and cutting force, and openability of consumers.
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4. Analysis of factors and construction of prognostic quality models of flexographic printing process of packaging with solvent based inks
- Pages: 37-44
- Vyacheslav Repeta, Тetiana Kukura, Volodymyr Havrylyshyn, Yurii Kukura
- Abstract | Download | View
Abstract
The presented article shows the results of the analysis of the factors
influence on the flexographic printing process with solvent based inks.
The main factors influencing the printing process quality are identified,
a semantic network of influence and dependencies of these factors is
constructed. The priority of factors, taking into account their influences
and dependencies, is established by the ranking method. Using the
Pareto rule and the construction of the corresponding diagram, four main
factors are identified, the influence of which provides 70 % of the studied
process quality. It is established that the most priority factors are the
parameters of the printing plate, the rheological parameters of the ink,
the lineature of the anilox roller and the surface properties of the material
to be printed, with the following calculated values: 150, 120, 105 and 90
units, respectively. The selected factors are used to analyse their impact
on the flexographic printing process by means of fuzzy logic. Accordingly,
a universal set, corresponding terms and a fuzzy knowledge base with
the condition "If-Then" are established for these factors in the form of
linguistic variables. The formed knowledge base is tested with the help of
the Fuzzy Logic Toolbox package of the Matlab technological computing
environment and the corresponding prognostic models of the influence
of the selected factors on the printing process quality are constructed.
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