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\author[1]{Full Name}
\author[1,*]{Corresponding Author}
\author[2]{Author (All Authors names must be written in a \textcolor{red}{\textbf{FULL NAME}}; Font type: Cambria; Font size: 12; Paragraph: Align Left)}
\affil[1]{Department of Aeronatical, Automotive and Offfshore Engineering, Fakulti Kejuruteraan Mekanikal, Universiti Teknologi Malaysia, Johor, Malaysia}
\affil[2]{Department of Mechanical Engineering, Faculty of Engineering, Kano University of Science and Technology, Wudil, Nigeria}

\corrAuthor{Corresponding author}
\emailCorrespondingAuthor{author.mail@gmail.com}

\receivedDate{29 October XXXX}
\receivedInRevised{1 December XXXX}
\accepted{9 December XXXX}
\availableOnline{10 December XXXX}

\volume{4}
\issue{1 (2026) xx-xx}

\doi{\colorbox{yellow}{\href{http://jopi-journal.org/index.php/jopi}{https://doi.org/10.31181/jopi312025xx}}\\[4pt]
© The Author(s) 2026 $\mid$ 
\href{https://creativecommons.org/licenses/by/4.0/}{Creative Commons Attribution 4.0 International License}}

\titleOfArticle{Title of Manuscript (\underbar{C}apital Letter of Each Word; Font type: Cambria; Font size: 16; Align Left)}

\abstractOfArticle{This text was generated solely for visual testing of the journal template and does not reproduce or summarize any existing research article. It is intended to show how a medium-length abstract behaves within the available column width, font size, line spacing, and justification settings. The sample describes a hypothetical study in which several decision alternatives are evaluated through a structured analytical procedure. First, a set of evaluation criteria is defined to represent technical, economic, operational, and organizational considerations. The criteria are then assigned illustrative weights, and each alternative is assessed using a common scoring scale. The resulting values are processed to produce an overall ranking that can be compared across different scenarios. Additional checks are introduced to demonstrate how the layout responds when sentences vary in length and include longer technical expressions. The hypothetical results indicate that the ranking remains generally stable, although small changes in selected weights may alter the relative position of closely performing alternatives. The example concludes that a transparent evaluation framework can help organize complex information and communicate the basis of a decision clearly. All statements, values, and conclusions in this paragraph are fictional and exist only to provide approximately two hundred words of continuous abstract text for typographic and visual inspection.}

\keywords{Minimum three keywords\colorbox{yellow}{;} avoid too general and too specific keywords\colorbox{yellow}{;} CDF Letters (\colorbox{yellow}{Please use semicolon as separator})}

\captionOfArticle

\section{Introduction}

The first sentence should start here \cite{Kabir2023}. Should have \textcolor{red}{one spacing after section header}. The \textcolor{red}{indent of the first line of paragraph} should be \textcolor{red}{0.63cm. Content in body paragraph} should be written with the Font style: Calibri; \textcolor{red}{Font size: 12; Paragraph: Justify; Line spacing: 1.0.} For example: The last few decades have witnessed vast research on new types of heat transfer fluids, namely nanofluids. Nanofluid is a fluid that contains nanometer-sized solid particles. The nanofluid was introduced by Choi \textit{et al.,} [2] and it has been proven to give better heat transfer efficiency compared to conventional fluids.  Detailed reviews on the physical and thermal properties of nanofluids can be seen in review papers by several authors [3-5]. \textcolor{red}{Important note: Citation cannot stand alone as subject or object. It just as a supportive to a statement.} For example, “was also conducted by [4]", should be written as “was also conducted by \textcolor{red}{Uithof \textit{et al.,}} [4]” (\textit{et al., must be in italic style})\par

Second paragraph starts here (\textcolor{red}{no spacing between paragraphs}). For example: A nanofluid can be produced by dispersing metallic or non-metallic nanoparticles or nanofibers with a typical size of less than 100 nm in a base liquid.\par

Generally, in manuscript, should have: \textbf{1. Introduction} (research background and Literature Review);\textbf{ 2. Methodology; 3. Result; 4. Conclusion; Acknowledgment; References}. You may add more if required. The style of the section header as bellow:
\newline

\par\noindent
{\calibri\fontsize{12pt}{12pt}\selectfont
\textbf{1. Introduction} (\textcolor{red}{\underbar{C}apital Letter of Each Word; No indent; Font style: Calibri \& Bold; Font Size: 12})\\[0pt]
\textit{1.1 Sub Section Header (\textcolor{red}{\underbar{C}apital Letter of Each Word; No indent; Font style: Calibri \& Italic; Font Size: 12})}\\[0pt]
\textit{1.1.1 Sub sub section header (\textcolor{red}{\underbar{S}entence case; No indent; Font style: Calibri \& Italic; Font Size: 12})}\par}
\nointerlineskip\vspace{0pt}

Header level three (1.1.1) and above will follow header level three style. \textcolor{red}{No spacing between each header}. However, \textcolor{red}{before starting the first paragraph}, must have \textcolor{red}{one spacing after the header}.\par

In the \textcolor{red}{last paragraph of introduction section}, Authors should highlight the \textcolor{red}{gap} and \textcolor{red}{significant of the research} before write the \textcolor{red}{objective} of the research. These \textcolor{red}{three items} are very important and \textcolor{red}{compulsory}. ----End of Introduction Section----

\section{Methodology}
\subsection{Figure Style and Format}

For manuscript publication, all provided Figures must follow the standard of quality for publication. Authors \textcolor{red}{must provide} a \textcolor{red}{high quality} with \textcolor{red}{high resolution Figure}. \textcolor{red}{Content} in the Figure should be \textcolor{red}{clear} and \textcolor{red}{readable} as shown in Figure 1(b) (Especially, \textcolor{red}{the font size of contour legend}). For example, as in Figure 1

\begin{figure}[hbt!]
\centering
\includegraphics[width=1\textwidth]{Images/image3.png}
\hspace{-10pt} (a) (\textcolor{red}{Font style: Calibri; Font size: 10}) \hspace{50pt} (b)
\caption{Figure quality (a) Unclear and unreadable content (b) Clear and readable content (\textcolor{red}{Font style: calibri; Font size: 11; Paragraph: Align left})}
\end{figure}

\textcolor{red}{Each Figure} must be \textcolor{red}{discussed} or \textcolor{red}{mentioned} in a body paragraph. The \textcolor{red}{Figure} must be \textcolor{red}{placed under} the \textcolor{red}{paragraph} that \textcolor{red}{discussed about the Figure}. Authors should \textcolor{red}{try} to make \textcolor{red}{economical use of the space} on the page; for example

\begin{enumerate}
\item [i.]	avoid excessively large white space borders around your graphics;
\item [ii.]	try to design illustrations that make good use of the available space—avoid unnecessarily large amounts of white space within the graphic;
\item [iii.]	Use the suitable size of Figure. Not too big.
\item [iv.]	Individual figures should normally be centered but place two figures side-by-side if they will fit comfortably like this as it saves space.
\end{enumerate}

Captions should be below the figure. The caption \textcolor{red}{SHOULD NOT} be finished with a full stop (period). The captions should be set to (a) the width of the figure for wider figures (b) centered across the width of the figure, as shown below

\begin{table}[hbt!]
  \centering
  \begin{tabular}{|p{7cm}|p{2cm}|p{6cm}|}
    \hline
    \multicolumn{3}{|c|}{\includegraphics[width=11.7cm, height=3cm]{Images/image4.png}}\\\hline
    \multicolumn{3}{|p{12.7cm}|}{\raggedleft\hspace{20pt}\textbf{Fig. 1.} In this case simply justify the caption so that is as the same width as the graphic}\\\hline
    \multicolumn{3}{|c|}{}\\\hline
    \centering
    \includegraphics[width=5.64cm]{Images/image5.png} &  &{
    \hspace{10pt}\includegraphics[width=5.64cm]{Images/image6.png}}\\\hline
    \textbf{Fig. 2.} These two figures have been placed side-by-side to save space&  &\textbf{Fig. 3.} These two figures have been placed side-by-side to save space\\
    \hline
  \end{tabular}
\end{table}
\vspace{-10pt}
\hspace{25pt}\colorbox{yellow}{Note: For long caption}

\begin{table}[hbt!]
    \centering
    \begin{tabular}{|c|}
      \hline
      \includegraphics[width=11.25cm, height=3.83cm]{Images/image7.png}\\\hline
      \textbf{Fig. 3.} Figure with short caption (caption centred)\\\hline
    \end{tabular}
\end{table}
\vspace{-10pt}
\hspace{60pt}\colorbox{yellow}{Note: For long caption}\newline

\textbf{For example:} A model of VFE-2 model was designed and fabricated in Universiti Malaysia wind tunnel under Malaysian Ministry of Education grant, as shown in \colorbox{yellow}{Figure 2} below [4]. The designed was exactly based on the original profile of Chu and Lucking [6] as \colorbox{yellow}{Figure 3}. \par

Few years later, a new research group is formed to further investigate the flow structure on the blunt-edged delta wing, the team called as Vortex Flow Experiment (VFE-2). The main objective of the VFE-2 test was to validate the results of Navier-Stokes calculations and to obtain a more detailed experimental data. The VFE-2 experiments were carried out for both sharp and blunt leading edge shape delta wing \cite{Strunk2000, Kabir2023, Kabir}. 

\begin{figure}[hbt!]
\centering
\adjustbox{gstore width=\figurelength,center}{
\includegraphics[width=10.15cm, height=5.92cm]{Images/image8.png}}
\adjustbox{minipage=\figurelength,center}{\caption{Comparison of experimental measurement and Numerical studies above VFE-2 configurations at $\alpha = 13^{\circ}$ \cite{Strunk2000}}}
\end{figure}

\begin{figure}[hbt!]
\centering
\includegraphics[height=7.5cm]{Images/image9.png}
\caption{UTM-LST delta wing VFE-2 profiles}
\end{figure}

Mat \textit{et al.,} [7] has performed a comprehensive flow visualization studies on blunt-edge delta wing. The primary vortex is developed at certain chordwise position and progress upstream with angle of attack; however, there is no data in VFE-2 indicating that the vortex progressed up to the Apex region with angle of attack increases.

\vspace{12pt}
\subsection{Table Style and Format}

\textcolor{red}{Table} should be placed at the \textcolor{red}{center}. \textcolor{red}{Each Table} must be \textcolor{red}{discussed} or \textcolor{red}{mentioned} in a body paragraph. The \textcolor{red}{Table} must be \textcolor{red}{placed under} the \textcolor{red}{paragraph} that \textcolor{red}{discussed about the Table. Font style} and \textcolor{red}{font size} of \textcolor{red}{content} in the Table are \textcolor{red}{Calibri} and \textcolor{red}{10}, respectively. The \textcolor{red}{content} must be \textcolor{red}{align left}. The \textcolor{red}{font size} of \textcolor{red}{Table caption} is \textcolor{red}{11}. The caption \textcolor{red}{SHOULD NOT} be finished with a full stop (period). The captions should be set to the width or within of the Table.

\begin{table}[hbt!]
    \centering
    \begin{minipage}{7.2cm}
    \captionsetup{width=\linewidth,justification=raggedright,singlelinecheck=false}
    \caption{Place the caption above the table. Here the \textcolor{red}{caption} is \textcolor{red}{wider} than the table}
    \centering
    \addtolength{\tabcolsep}{+9pt}
    \begin{tabular}{rr}
    \toprule
         \textbf{Distance (m)} & \textbf{Velocity (m$\text{s}^{-1}$)}\\
         \midrule
         \textbf{A}& \textbf{1}\\ 
         \textbf{B}& \textbf{2}\\ 
         \textbf{C}& \textbf{3}\\ 
         \textbf{D}& \textbf{4}\\ 
         \bottomrule
    \end{tabular}
    \end{minipage}
\end{table}

\begin{table}[hbt!]
    \centering
    \begin{minipage}{9.0cm}
    \captionsetup{width=\linewidth,justification=raggedright,singlelinecheck=false}
    \caption{Here the \textcolor{red}{caption} is \textcolor{red}{shorter} than the table}
    \centering
    \addtolength{\tabcolsep}{+99pt}
    \begin{tabular}{c}
    \toprule
         \textcolor{Blue}{\textbf{Reynolds}}\\
         \midrule
         \textbf{}\\  
         \bottomrule
    \end{tabular}
    \end{minipage}
\end{table}

\vspace{12pt}
\subsection{Equation Style and Format}

All \textcolor{red}{equation} that mentioned in body paragraph should be written as \textcolor{red}{Eq. (1)}. Please use Microsoft Equation in order to present an equation. The \textcolor{red}{font size} of equation is \textcolor{red}{12}. Each equation must be numbered as follow

\begin{flalign}
& \text{Re} = \frac{\rho Vx}{\mu} &&
\end{flalign}

\section{Results}
\subsection{Pressure Distribution}

\textbf{For example:} This section discusses the results obtained from the surface pressure measurement study. The effects of angle of attack, Reynolds number and leading edge bluntness are discussed in the next sub section. 

\vspace{12pt}
\subsubsection{The effect of angle of attack}

The test configuration for this experiment is in \colorbox{yellow}{Table 1}. Nevertheless for the experiment at Reynolds number of $2\times 10^6$, the angle of attack was limited to $\alpha = 23^{\circ}$ only.

\begin{table}[hbt!]
    \centering
    \begin{minipage}{9.0cm}
        \raggedright
        \colorbox{yellow}{\textbf{Table 1}}\\[-1pt]
        The values of Reynolds number and velocity\\[-1pt]
        \centering
        \begin{tabular*}{9.0cm}{@{\extracolsep{\fill}}c@{}}
        \toprule
             \textcolor{Blue}{\textbf{Reynolds}}\\
             \midrule
             \textbf{}\\
             \bottomrule
        \end{tabular*}
    \end{minipage}
\end{table}

To differentiate the effects of Reynolds number, the experiments was also performed at two speeds of 18 m/s and 36 m/s that corresponding to $1\times 10^6$ and $2\times 10^6$ Reynolds number, calculated from \colorbox{yellow}{Eq. (1)} and summarize in Table 1.  

\begin{flalign}
    & \text{Re} = \frac{\rho Vx}{\mu} && \tag{1}
\end{flalign}

where the dynamic viscosity, $\mu$, density of air, $\rho$ and length, $x$ were taken as $1.846\times 10^{-5} \text{ kg/ms} 10^{-5}$, $1.18 \text{ kg/m}^3$ and 0.874 m respectively.

\section{Conclusions}

In \textcolor{red}{conclusion part}, \textcolor{red}{Author} should \textcolor{red}{highlight} the \textcolor{red}{finding} of their research that \textcolor{red}{respond} to the research \textcolor{red}{objective}. \textbf{For example:} The experimental data of UTM-LST VFE-2 model at high angle of attack is presented here. More experiments are needed to verify this complicated flow topology.

\section*{Acknowledgement}

\noindent This research was funded by a grant from Ministry of Higher Education of Malaysia (FRGS Grant \newline R.J130000.7824.4X172).\newline
\small(Note: This part is \textcolor{red}{compulsory}. If this research was \textcolor{red}{not funded} by any grant, please write “\colorbox{yellow}{This research was not} \colorbox{yellow}{funded by any grant}”)

\section*{Conflicts of Interest}

\noindent Author A has received research grants from Company A. Author B has received a speaker honorarium from Company X and owns stocks in Company Y. Author C has been involved as a consultant and expert witness in Company Z. Author D is the inventor of patent X.
\newline
\newline
\textit{If no conflicts exist, the authors should state:}
\newline
\newline
The authors declare no conflicts of interest.

\section*{ References}

\noindent The list of references should only include works that are cited in the text and that have been published or accepted for publication. Personal communications and unpublished works should only be mentioned in the text. Reference style should be in \textbf{Chicago style.} Please use this \href{https://doi.crossref.org/simpleTextQuery}{link} for the \textbf{DOI number.} 

% Lightweight reference list for Overleaf Free Plan.
% Calibri 10 pt entries; heading Calibri Bold 12 pt.
\vspace{12pt}
\noindent{\calibri\fontsize{12pt}{12pt}\selectfont\bfseries
References (Reference style: APA style - must write \textcolor{red}{DOI}) \textcolor{red}{Minimum 20 references}\par}
{\calibri\fontsize{10pt}{10.5pt}\selectfont
\begin{thebibliography}{99}
\bibitem{Kabir2023}
Kabir, M. F., \& Roy, S. (2023a). Hazard perception test among young inexperienced drivers and risk analysis while driving through a t-junction. \textit{Decision Making: Applications in Management and Engineering, 6(1)}, 1--17. \href{https://doi.org/10.31181/dmame181221015k}{https://doi.org/10.31181/dmame181221015k}

\bibitem{Strunk2000}
Strunk, W. J., \& White, E. B. (2000). The elements of style. (4th ed.) New York: Longman, (Chapter 4). \textit{Reference to a chapter in an edited book}: Mettam, G. R., \& Adams, L. B. (2009). How to prepare an electronic version of your article. In B. S. Jones, \& R. Z. Smith (Eds.), Introduction to the electronic age (pp. 281--304). New York: E-Publishing Inc.

\bibitem{Kabir}
Kabir, M. F., \& Roy, S. (2023b). Hazard perception test among young inexperienced drivers and risk analysis while driving through a t-junction. \textit{Decision Making: Applications in Management and Engineering, 6(1)}, 1--17. \href{https://doi.org/10.31181/dmame181221015k}{https://doi.org/10.31181/dmame181221015k}
\end{thebibliography}}

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