Zulfaqar JDSET

Journal of Defence Science, Engineering & Technology

ONLINE FIRST

 

Application of Fuzzy Analytical Hierarchy Process (FAHP) for Teaching Quality Evaluation at Defence Foundation Centre

Fatin Amirah Ahmad Shukri, Fazilatulaili Ali, Asniah Alias, Nor Ain Azeany Mohd Nasir

 

Investigation on Purity and Thermal Stability of Ag2o Raw Material Used to Synthesis Ag2nb4o11 Ceramics Using Thermal and Phase Analysis Method

Fadhlina Che Ros, Shahrul Izwan Ahmad, Fadhlul Wafi Badrudin, Siti Hasnawati Jamal, Norli Abdullah, Norhana Abdul Halim 

 

Faults Detection via Mobile Safety Inspection System

Chew Sue Ping, Anis Shahida Niza Mokhtar, Chai Zhi Ren, Wan Ariff Fadhil Wan Abdullah, Shee Hui Chien, Tee Kai Wen, Muhd Asran Turan 

 

Classifiying Fake Profile in Facebook Account using Support Vector Machine

Ahmad Nazren Hakimi Ahmad Nasir, Suzaimah Ramli, Muslihah Wook, Norulzahrah Mohd Zainuddin, Nor Asiakin Hasbullah, Noor Afiza Mat Razali

 

Preliminary study of Staphyococcus aureus antibiotic susceptibility profiles in Hospital Angkatan Tentera Tuanku Mizan (HATTM) Malaysia

Nik Noorul Shakira Mohamed Shakrin, Frhana Rahmat, Nor Syaza Syahirah Amat Junaidi, Mohammad Fahmi Daman Huri, Nur Adnin Ahmad, Ahmad Zakuan Kamarudin, Mohd Nasir Mohd Desa 

 

AWAITING REVISED ARTICLE

 

In Defence of Breastfeeding: A Key to Food Security and Sustainable Development Goals

 

Studies in Defense of Societal Anxiety to Electromagnetic Field Radiation from Telco Towers

 

Knowledge, Attitude and Behaviour Regarding Hydration and Fluid Intake Practice among National Defence University of Malaysia Athletes 

 

Defence Against Fire: Technology Acceptance Model of Innovative Grill Ladder for Terrace Houses

 

Defending Against Dengue: A Pilot Study of KAP on Dengue Prevention Among Residents in SS 3 Petaling Jaya

 

Construction Organisation Willingness to Adopt Building Information Modelling (BIM) As Design Development Tools

 

Alternative Materials for Improvement of Mechanical Performance, Thermal Performance and Mass of Pistol Barrel 

 

Pembangunan Sistem Maklumat Geografi Cawangan Kem Tentera Darat (GEOTD)

 

Water Level Smart Monitoring System For Atmospheric Water Generator Tank Using Arduino

 

Energy Harvesting from Exhaust Waste Heat using Thermoelectric Generator (TEG) Modules

 

Development of Control Design For Tracking Tracking of Underactuated Underwater Vehicle Using Root Locus Technique

 

Structural Analysis of Bulkhead Patch Repair of Fighter Aircraft due to Heat Damage

 

Research Progress on Polythiophene and its Application as Chemical Sensor 

 

A Comparison Study on Text Mining and Sentiment Analysis Features and Functions using SAS Enterprise Miner, Python and R

 

Enablers for Building Design Outcome with High Maintainability Consideration from Design Engineers Perspectives

 

Electrical Energy Monitoring System from Solar Panel

 

Implementation of Modified Booth-Wallace Tree Multiplier in FPGA

 

 

IN REVIEW

 

Detection of Vibration Frequency Based on No Core Fiber

 

Deep Contact Hand Burns, How to manage Two Cases Report

 

Behaviour of Non Explosive Demolition Agent (NEDA) on Plain Concrete

 

Scuba-diving injuries and underwater hazards: Refresher note for navy personnel

 

Cultural Responsive Cognitive Behaviour Therapy with Cultural Intervention for Paedophilic Disorder: A Case Report and Literature Review

 

Management of Necrotizing Periodontitis in the Setting of Stress

 

Experimental Investigation of Savonius Wind Turbine Blade for Low Wind Speed Region

 

Maintaining Hydration in Cadet Students: Issues and Guidelines

 

 

 

 

 

 

 

 

 

 

 

 

SOLAR LOCATION ESTIMATION USING LOGSIG BASED ACTIVATION FUNCTION USING ARTIFICIAL NEURAL NETWORK APPROACH

Fakroul Ridzuan Hashim, Prakash Nagappan, Mohd Taufiq Ishak, Nur Fazriana Joini@Jaini, Nazrul Fariq Makmor, Mohd Sharil Saleh, Nurzaitul Zolkiply

 

Abstract

Solar panel is one of the renewable energy that can reduce the environmental pollution and have a wide potential of application. The exact solar prediction module will give a big impact on the management of solar power plants and the design of solar energy systems. This paper attempts to find the best Artificial Neural Network (ANN) based logsig transfer function and various training algorithm that can be used to calculate the temperature module (Tm) in Malaysia. This can be done by simulating the collected data of four weather variables which are the ambient temperature (Ta), local wind speed (Vw), solar radiation flux (Gt) and the relative humidity (Rh) into the Neural Network Tool in MATLAB. Three different ANN transfer function and 14 types of training were compared to choose the best method. Finally, an equation for the ANN model will be generated in order to calculate the temperature module based on ambient temperature, local wind speed, solar radiation and relative humidity variables.

 

HUMAN DETECTION FOR THERMAL AND VISIBLE IMAGES

Mazlinda Ibrahim, Hoo Yann Seong, Siti Zulaikha Ngah Demon, Suzaimah Ramli, Syed Nasir Alsagoff Syed Zakaria 

 

Abstract

Human detection and localization is one of the importance aspects in computer vision. It has broad applications in surveillance, robotic, driver assistance system, and for the military applications. The task is difficult because it depends on various conditions such as illumination, distance, human pose and weather condition. This study aimed to investigate human detection methods for thermal and visible images. We have explored three methods which are histogram of oriented gradient, integral image and aggregate of channel features. Our result showed that histogram of oriented gradient outperformed the other two using the tested images. However, the method is only applicable when the human is on the standing or upright position and limited to a certain distance between the scene and the camera position.

 

MODELLING SLOPE TOPOGRAPHY OF A HILLY TERRAIN USING UNMANNED AERIAL VEHICLE IMAGE TECHNIQUE

Neza bin Ismail, Fatin Nur Zatasya, Wan Mohamed Syafuan, Ng Choy Peng 

 

Abstract

Unmanned Aerial Vehicle (UAV) as data acquisition tools are becoming more affordable for many civil engineering applications. However, the accuracy of the output is influenced by many parameters. The main objective of this study was to investigate the effect of flight altitude toward the final output measurement accuracy without using Ground Control Point (GCP). Altitude is a parameter that is very important in flying UAV that has to be taken into consideration. Notably, the flight altitude depends on the ground condition, surrounding obstruction, Ground Sample Distance (GSD) and camera monitoring. The UAV should fly in a lower condition when GSD is better. However, this approach rarely can succeed because different site conditions such as flat terrain nor hilly terrain required different flight planning. Therefore, a field experiment will be carried out to investigate the optimum flight altitude to obtain acceptable accuracy of orthomap at hilly type of terrain. This study evaluates both the qualitative of the image and the quantitative aspect of the orthomap. The actual measurement of selected features was made and compared with the on screen measurement. An orthophoto will be generated by using Pix4Dmapper on a selected slope of the hilly terrain in UPNM Campus. Based on the results, different accuracy obtain on flat surface is 0.14% and slope surface is 2.77%, which needed further study to identify the method to reduce error. It is found that the accuracy without GCP is not having large error of more than 1% for flat area. Due to distortion of image on slope surface, the error is larger and needed GCP calibration. This study shows that UAV is a feasible platform for mapping of small area with acceptable accuracy.

 

SIFAT MEKANIKAL KOMPOSIT EPOKSI MONTMORILLONITE TERAWAT DIPERKUKUH CECAIR GETAH ASLI TEREPOKSIDA

Ku Zarina Ku Ahmad, Sahrim Ahmad, Rozaidi Rasid

 

Abstrak

Kajian ini telah dijalankan dengan menghasilkan dua sistem komposit iaitu komposit epoksi berpengisi montmorillonite (MMT) dengan dan tanpa cecair getah asli terepoksida (LENR) secara kaedah pencampuran in situ.   Komposit telah di pra-matang pada tiga suhu iaitu pada suhu 30 °C, 50 °C atau 70 °C. Kedua dua sistem dimatang pada suhu  130 °Catau 140 °C. Ujian hentaman Izod dan ujian keliatan patah ke atas komposit yang dihasilkan menunjukkan peningkatan maksimum sebanyak 44% dengan penambahan MMT dan 29% peningkatan dengan penambahan getah asli terepoksida. Selain kandungan MMT, suhu pra matang 70 °Cmemberikan kesan yang ketara terhadap kekuatan hentaman dan keliatan patah sistem epoksi berpengisi MMT. Suhu pra-matang 50 °Cmerupakan suhu yang optimum dan berupaya memberikan kekuatan hentaman dan keliatan patah yang baik kepada sistem epoksi berpengisi MMT getah asli terepoksida. Suhu matang bagi kedua dua sistem tidak memberikan kesan yang ketara kepada sifat mekanikal kedua dua sistem komposit ini. Pemeriksaan mikrostruktur melalui mikroskop elektron transmisi menunjukkan MMT tertabur dengan susunan interkalasi. Peningkatan kandungan MMT melebihi 1% berat menunjukkan kehadiran taktoid dan penggumpalan silikat.

 

Abstract

This study was conducted by producing two composite systems, namely montmorillonite-containing epoxy composites (MMT) with and without epoxidized natural rubber liquid (LENR) by in situ mixing method. The composite was pre-cure at three temperatures at 30 °C, 50 °C or 70 °C. Both systems are cured at a temperature of 130 °C or 140 °C. Izod impact test and fracture toughness test on the resulting composite showed a maximum increase of 44% with the addition of MMT and a 29% increase with the addition of epoxidized natural rubber. In addition to the MMT content, the pre-cure temperature of 70 °C has a significant effect on the impact strength and fracture toughness of the MMT-filled epoxy system. The pre-cure temperature of 50 °C is the optimum temperature and is able to provide good impact strength and fracture toughness to the epoxy system containing MMT epoxidized natural rubber. The curing temperatures of both systems do not significantly affect the mechanical properties of these two composite systems. Observation of the microstructure through the transmission electron microscope showed that MMT was dispersed in an intercalation arrangement. An increase in the content of MMT above 1% by weight indicates the presence of tactoids and silicate aggregation.

 

ANDROID DESIGNED MALWARE DETECTION CHALLENGES: A FUTURE RESEARCH DIRECTION

Afiqah Mohammad Azahari, Arniyati Ahmad, Syarifah Bahiyah Rahayu, Nur Diyana Kamarudin, Mohd Hazali Mohamed Halip

 

Abstract

Statistically, Android is the most targeted mobile platform when it comes to malicious application. As a result, Android malware detection has become one of the sizing topics in the domain of mobile security. As the researchers focusing on developing a new approach to detect and fight Android malware, there are always a recent report exhibiting cases of Android malware. Multiple motivations cause mobile malware writers to continuously develop an application with malware. Their intentions are to gain access to the private network and to collect sensitive data. This paper categories type of mobile malware. Furthermore, the types of mobile malware that often attacks android’s users are discussed. Then, fundamental techniques usually implement to detect mobile malware are deliberated. Basic techniques such as Static, Dynamic and Hybrid analysis are explained in the section. Finally, open issues on detecting and evaluating Android designed malware presented as a guideline for future research directions.

 

EFFECT OF GAMMA RADIATION ON MICROMECHANICAL BEHAVIOR OF SNPB SOLDER ALLOY

Noor Fadhilah Rahmat, Wan Yusmawati Wan Yusoff, Nor Azlian Abdul Manaf, Azman Jalar, Nur Shafiqa Safee, Azuraida Amat, Nurazlin Ahmad, Irman Abdul Rahman, Norliza Ismail, Najib Saedi Ibrahim

 

Abstract

Tin-lead (SNPB) alloys are widely used in microelectronic packaging industry. It serves as a connector that provide the conductive path needed to achieve the connection from one circuit element to another circuit element. In this research, the effect of gamma irradiation on the micromechanical behaviour of tin-lead (SNPB) solder alloy has been investigated using the nano-indentation testing. Gamma radiation with a Cobalt-60 source were exposed to SNPB solders with different doses from 5 Gy to 500 Gy. In this study, the nano-indentation technique was used to understand the evolution of micromechanical properties (hardness and reduced modulus) of SNPB solder joints subjected to gamma irradiation. The results showed that the hardness of the SNPB alloys was enhanced with increasing of gamma radiation. The hardness was greatest at dose of 500 Gy of sample, 25.6 MPa and had the lowest value at un-irradiated sample.  However, the reduced modulus was decreased by increasing the irradiation of gamma due to the intrinsic properties and the atomic bonding of the material.

 

NEW TRACEABILITY APPROACH USING SWARM INTELLIGENCE FOR MILITARY BLOCKCHAIN

Syarifah Bahiyah Rahayu Syed Mansoor, Mohd Hazali Mohamed Halip, Afiqah Mohammad Azahari, Nur Diyana Kamarudin, Hassan Mohamed

 

Abstract

Current military supply chain management is complex and complicated. Activities such as information, and knowledge sharing among involved parties are prone to cybercriminal. Protection of such private and confidential documents are very important. Therefore, a military supply chain derives a critical need for decentralized and digitize transactions in the ledger. This study is proposing a new traceability chain algorithm for military shipment using blockchain. The development of this traceability chain algorithm is based on algorithm development methodology. The new traceability chain algorithm is expected to trace product movement along with the blockchain network. In addition, it is also believed that this study will provide positive results for defense shipment. Future work is to broaden the scope to other military areas such as threat intelligence.

 

EFFECTS OF RAINFALL INTENSITIES AND AGGREGATE SIZE ON SEDIMENT CONCENTRATION AND HYDRAULIC PARAMETERS

Zuliziana Suif, Siti Zulaikha Baharom, Maidiana Othman, Nordila Ahmad, Mohd Asri Md Nor

 

Abstract

The aim of this study was to investigate the relationship between the effects of rainfall intensity and aggregate sizes on sediment concentration and hydraulic parameters. Flow velocity, flow width, shear stress and stream power are the hydraulic parameters. The impact of various rainfall intensities with differing aggregate sizes (D1.18 mm and D2.00 mm) was also studied. Under the rainfall simulator, the different aggregate sizes, D1.18 mm and D2.00 mm, were set up at a slope angle of 20o. The flow of runoff was collected for 2 hours at several intervals (30, 60, 90 and 120 min). Then, the hydraulic parameters and concentration of the sediment were measured. As a result, the increased rate of rainfall creates a higher concentration of sediment on a steep slope from 7.988 to 3233.569 gm-3 and 2.954 to 976.736 gm-3 for aggregate sizes D1.18 mm and D2.00 mm, respectively. Generally, as the flow depth and shear stress were reduced, the estimated sediment concentration was higher. On the other hand, flow velocity and unit stream power were directly related to the sediment concentrations.

 

APPLICATION OF ULTRA-HIGH FREQUENCY ANTENNA FOR PARTIAL DISCHARGE DETECTION IN OIL-FILLED POWER TRANSFORMER: A REVIEW

Azharudin Mukhtaruddin, Muzamir Isa, Mohd Fadzil Ain, Mazlee Mohd Noor, Mohd Rafi Adzman, Mohamad Nur Khairul Hafizi Rohani

 

Abstract

Partial discharge (PD) is a phenomenon that may lead to dielectric breakdown and can provide important information for condition monitoring on electrical power equipment, in particular transformer. One of the methods is the detection of the electromagnetic (EM) wave signal emitted by PD. Although the frequency spectrum in EM is very wide, this paper discusses the detection of EM only at ultra-high frequency (UHF). One of the detectors that can be used to detect EM is the antenna. There are a lot of antenna designs that have been proposed to detect the signal. The designs can be generally divided into two: PCB-based design and physical antenna design. An example of the latter is monopole. Some of the proposed antennas were left at the design stage while others went to be applied in actual PD experimentation. Discussion on the capabilities of these antennas can lead to the selection of a suitable antenna.


PATH FINDING OF STATIC INDOOR MOBILE ROBOT VIA AOR ITERATIVE METHOD USING HARMONIC POTENTIALS

A'qilah Ahmad Dahalan, Azali Saudi, Jumat Sulaiman 

 

Abstract

Mobile robots often have to discover a path of collision-free towards a specific goal point in their environment. We are trying to resolve the mobile robot problem iteratively by means of numerical technique. It is built on a method of potential field that count on the use of Laplace’s equation in the mobile robot’s configuration space to constrain/which reduces the generation of a potential function over regions. This paper proposed an iterative approach in solving robot path finding problem known as Accelerated Over-Relaxation (AOR). The experiment shows that these suggested approach can establish a smooth path between the starting and goal points by engaging with a finite-difference technique. The simulation results also show that a more rapidly solution with smoother path than the previous work is achieved via this numerical approach. 

 

PEMANTAUAN TAHAP HINGAR SEMASA OPERASI PESAWAT SUKHOI DI NO. 11 SKUADRON

Mohd Rizal Hamid, Ahmad Faruq Mohamad Rosli, Kesavan Manokaran, Siti Shafiqa Shamira Hashin, Nik Mohd Dzarrin Ghifari Azmy, Baba Md Deros, Dian Darina Indah Daruis 

 

Abstract

Kesedaran terhadap bunyi bising di tempat kerja sememangnya semakin meningkat. Di pengkalan No. 11 Skuadron serta bangunan bersebelahan dengannya, pesawat Sukhoi merupakan punca utama bunyi bising atau hingar yang memberi kesan kepada pekerja dan orang awam. Objektif kajian ini adalah untuk menentukan kadar bunyi yang dihasilkan oleh pesawat Sukhoi ketika operasi penyelenggaraan. Pesawat Sukhoi mempunyai dua enjin yang merupakan punca bunyi bising di lapangan ini. Kajian ini dijalankan dengan menggunakan alat pengukur bunyi mudah alih Bruel & Kjaer 2250 yang diletakkan di tengah-tengah pesawat di dalam hangar untuk mengukur bunyi pada jarak 10 meter, 50 meter, 100 meter, 500 meter, 1000 meter dan 1500 meter. Enjin pesawat tersebut beroperasi pada dua tahap, 72% RPM dan kemudiannya pada 85% RPM. Pada setiap jarak, golongan yang terdedah berbeza di mana orang awam hanya terlibat bermula dari jarak 1000 meter dan ke atas. Pekerja TUDM dan pekerja yang terlibat dengan penyelenggaraan pesawat tersebut terdedah dengan bunyi bermula dari jarak 0 meter lagi (yakni berada dibawah enjin pesawat). Data yang diperoleh dianalisa untuk menghasilkan peta hingar dan kontur hingar. Hasil daripada lakaran tersebut, tahap pendedahan hingar dapat dikenalpasti. Bunyi maksima yang telah direkodkan adalah 122 db(A) manakala yang terendah adalah 60 dB(A). Kadar bunyi yang direkodkan semakin rendah apabila jarak dari punca bunyi bertambah. Dari peta lakaran tersebut, kesan pendedahan terhadap kedua-dua pekerja dan orang awam dapat dikenalpasti. Walaupun pendedahan selama 5-10 minit sahaja setiap kali ia berlaku, tetapi ia tetap menjengkelkan (annoyance) dan untuk jangka masa panjang ia tetap dapat mengancam kesihatan mereka yang terlibat.

 

 Awareness of occupational noise and its effects is growing. At No. 11 squadron base, Sukhoi jet was identified as the main culprit of occupational noise that affects not just the employees of the base but also civilian people in the surrounding area. The objective of the study is to identify the noise level produced by Sukhoi two-engines jet during maintenance operations. Investigations were carried out using Bruel & Kjaer 2250 sound level meter hand-analyser. Measurements were performed directly under the Sukhoi jet body and then 10 metres, 50 metres, 100 metres, 1000 metres and 1500 metres away. The jet engines could operate at two levels, at 72% RPM and at 85% RPM. The civilians are only exposed to its noise from more than 1000 metres away. The results from this study are analysed and noise mapping and noise contouring are produced which give the level of noise exposure. The maximum noise is recorded t 122dB(A) and the minimum is at 60dB(A). The farther the noise from the jet is measured, the lower the values recorded. From the noise mapping, the effects of noise exposures on both the employees at the base and the civilian at the neighbouring surrounding could be identified. Even though the exposures are only for 5-10 minutes, it is still considered as a threat. 

 

A REVIEW ON TECHNIQUES AND CHALLENGES IN SENTIMENT ANALYSIS OF STUDENT’S COMMENTS

Siti Rohaidah Ahmad, Nurhafizah Moziyana Mohd Yusof, Siti Hajar Zainal Rashid, Abdul Ghapor Hussin 

 

Abstract

Assessment of instructors by students is needed for assessing the teaching quality of a lecturer towards achieving the objectives of a course. This paper aims to examine the techniques used in sentiment analysis for assessing the effectiveness of a lecturer’s or a teacher’s teaching style in the learning process at a university or school. In addition, the effectiveness of sentiment analysis techniques in assisting the teaching evaluation process is also discussed. The challenges for assessing the quality of teaching of National Defence University of Malaysia (UPNM) lecturers are also discussed in this paper. The sentiment analysis technology is capable of analysing views or opinions on a matter, regardless of whether they are positive or negative. Data from the sentiment analysis can be used by specific parties or anyone else to rectify any weakness or to improve any aspect that the user commented on. The purpose of this study is not to find the weakness of the lecturer, but rather the results of this assessment process can be useful to the management for rectifying weaknesses and for improving the teaching process. 

 

THE RESPONSE OF HYPOXIA BIOMARKERS TO HYPERBARIC OXYGEN THERAPY IN PREVENTING HYPOXIA AT HIGH ALTITUDE

Shazreen Shaharuddin, Fathinul Fikri Ahmad Saad, Aminuddin Abdul Hamid Karim 

 

Abstract

Training at high altitude for prolonged periods can cause low oxygen tension which can developed complication of hypoxia. Hypoxia is a cascade activity from a level of down regulation and function of cell’s nucleus. Early detection of biomarker and physiological changes are important in prevent the hypoxia at high altitude. Hyperbaric medicine is a new treatment that were used an oxygen therapy to treat hypoxic and inflammatory driven conditions which patients are treated with 100% oxygen at pressure greater than atmospheric pressure. The review discusses physiological changes associated with hypoxia, the response of biomarker hypoxia changes in high altitude and the role of hyperbaric oxygen therapy can play as part of the treatment for pilots and athletes training at high altitudes that suffering from disease with underlying hypoxia. 

 

e-ISSN: 2773-5281

 

 

 

 

THE EFFECTS OF GROUND WATER LEVEL FLUCTUATION ON SLOPE STABILITY BY USING SLOPEW

Jestin Jelani, Nur Amirah Adnan, Hapsa Husen, Mohd Nazrin Mohd Daud, Suriyadi Sojipto

 

Abstract

This study is a continuation of previous research work conducted by the author on the stability of man-made slope constructed in UPNM campus. This paper presents the effects of ground water level (GWL) fluctuation on slope stability by using numerical simulation program, SlopeW. Ground water rises were simulated from 5m below the ground until 10m above the ground. Soil samples were taken from the site and tested in laboratory and then were incorporated into the program. It was found that the stability of the slope decreased with an increase of GWL. The critical slip surface formed by each case study is categorised as deep seated with circular and non-circular shapes. 

 

CUBE POLYGON: A NEW MODIFIED EULER METHOD TO IMPROVE ELECTRIC CIRCUIT EFFICIENCY

Nurhafizah Moziyana Mohd Yusop, Nooraida Samsudin, Anis Shahida Mokhtar, Siti Rohaidah Ahmad, Aslina Baharum, Mohd Fahmi Mohammad Amran 

 

Abstract

Euler method is a numerical order process for solving problems with the Ordinary Differential Equation (ODE). It is a fast and easy way. While Euler offers a simple procedure for solving ODEs, problems such as complexity, processing time and accuracy have driven others to use more sophisticated methods. Improvements to the Euler method have attracted much attention resulting in numerous modified Euler methods. This paper proposes Cube Polygon, a modified Euler method with improved accuracy and complexity. In order to demonstrate the accuracy and easy implementation of the proposed method, several examples are presented. Cube Polygon’s performance was compared to Polygon’s scheme and evaluated against exact solutions using SCILAB. Results indicate that not only Cube Polygon has produced solutions that are close to identical solutions for small step sizes, but also for higher step sizes, thus generating more accurate results and decrease complexity. Also known in this paper is the general of the RL circuit due to the ODE problem.

 

A STUDY ON PRIVATE BROWSING IN WINDOWS ENVIRONMENT

Yamunah Kathiravan, Mohd Fahmi Mohamad Amran, Noor Afiza Mat Razali, Mohd Afizi Mohd Shukran, Norshahriah Abdul Wahab, Mohammad Adib Khairuddin, Mohd Nazri Ismail, Zuraidy Adnan, Muhammad Fairuz Abd Rauf

 

Abstract

Privacy has always been a constant concern for many people. Internet users are often worried about the browsing information that is left on their storage media. Web browsers were later introduced with a new feature called private browsing to overcome this issue. The private browsing mode is expected to behave as normal browsing session but without storing any data such as browser cookies, history, cache and passwords on the local machine. Unfortunately, previous researchers concluded web browser often failed to provide the intended privacy protection to their user. Along the way of this reviewing process, the weakness and downside of previous web browser vendors have been identified 

 

DEVELOPMENT OF A COMPOSITE PAVEMENT PERFORMANCE INDEX TO MONITOR THE PAVEMENT CONDITION IN UPNM

Muhammad Nur Arsyad Azman, Choy Peng Ng, Faridah Hanim Khairuddin, Neza Ismail, Wan Mohamed Syafuan Wan Sabri

 

Abstract

Road surface condition of a pavement is one of the most important pavements features as it affects the dynamic load of vehicles travelling on it, the quality of travel and the vehicle operating cost. It is important to maintain a good road surface condition in order to promote safety and to reduce traffic accidents and injuries. The Composite Pavement Performance Index (CPPI) is one of the important tool to measure the performance or condition of a pavement. By conducting pavement evaluation using the CPPI, civil engineers could prioritize the maintenance and rehabilitation which usually incurred a huge cost. In University Pertahanan Nasional Malaysia (UPNM), there is no proper maintenance and rehabilitation scheduled for the roads as there is no performance evaluation tool available to measure the pavement performance or condition. Thus, the objective of this study is to develop a Composite Pavement Performance Index (CPPI) to monitor the pavement condition and to rank the roads in UPNM. In order to develop the CPPI, road defects data were collected from 6 internal roads in UPNM. From the data collected, 4 major types of distresses: rutting, pothole, crocodile cracking and longitudinal cracking are more likely to occur on the pavements in UPNM. By measuring the growth of the distresses over a period of 6 months, the CPPI was developed to rank the roads in UPNM. Using the CPPI, this study demonstrated that the road connecting to the library building experienced the worst pavement deterioration in UPNM with a value of CPPI of 24. The condition of the pavement was classified as poor. Thus, it is recommended that the road connecting to the library building should be reconstructed to increase the safety for road users.

 

CHARACTERISTICS OF PHOTO-LUMINESCENT (PL) POWDER APPLIED WITH POLYESTER RESIN AS GLOW-IN-THE-DARK EMERGENCY SIGNAGE

Siti Khadijah Che Osmi, Vikneswaran Munikanan, Hapsa Husen, Zuliziana Suif, Maidiana Othman, Nordila Ahmad, Nur Amira Syuhaida Rizal

 

Abstract

During a disaster, the rescuer must reach the disaster area within the fastest time with the help of navigation tools. However, there might be some obstacles during the night time that make the evacuation of the victims difficult especially due to the bad weather. Hence, an attempt to produce glow-in-the-dark emergency signage to ease the evacuation process and to enhance visibility during night time is necessary. In this present study, particular emphasis is given to investigate the characteristic of photo-luminescent (PL)powder applied with polyester resin as glow-in-the-dark emergency signage. Five samples of signage were fabricated with different percentage of PL powder, i.e. 20%, 40%. 60%, 80% and 100% and mixed with 150g polyester resin. Three types of luminance test were performed to check the workability of the samples. The tests are physical appearance, one-hours illuminance test and afterglow duration tests. The result showed that the maximum lux meter reading was recorded in Sample 5 with 6 lux luminosity and provided the longest glow duration of the sample before completely off after 12-hours. Results proved that the highest percentage of the PL powder content, the longer the afterglow duration will be achieved. It also noted that the polyester resin could be a good binder of PL powder for producing the glow-in-the-dark emergency signage. 

 

e-ISSN: 2773-5281

 

 

 

 

 

AGGRESSIVE MOVEMENT FEATURE DETECTION USING COLOR-BASED APPROACH ON THERMAL IMAGES

Suzaimah Ramli, Tuan Khalisah Tan Zizi @ Tuan Zizi, Norulzahrah Mohd Zainudin, Nor Asiakin Hasbullah, Norshariah Abdul Wahab, Noor Afiza Mat Razali, Norazlin Ibrahim

 

Abstract

Thermal imaging technology can be used to detect aggressive levels in humans based on the radiated heat from their face and body. Previous researches have proposed an approach to figure out human aggressive movements using Horn-Schunck optical flow algorithm in order to find the flow vector for all video frames but still not strong enough to confirm and verify the existence of an aggressive movement. In this work, we propose an approach by using thermal videos for frontal views of the human body which is face view. Then, video frames are collected using thermal camera and further extracted into thermal images. We use thermal imaging to monitor the face including prefrontal and periorbital region’s thermal variations and test whether it can offer a discriminative signature for detecting aggressiveness. We start by presenting an overview of 3400 thermal images extracted from 50 participants. The results obtained is promising where aggressive and non-aggressive features can be detected by using color-based approach.

 

 

RECENT ADVANCES TECHNIQUES FOR DETECTION OF ORGANOPHOSPHATES: A REVIEW

Mohd Junaedy Osman, Wan Md. Zin Wan Yunus, Ong Keat Khim, Jahwarhar Izuan Abd. Rashid

 

Abstract

This review summarizes the evolution that has been made for organophosphates (OPs) detection technique using conventional technique (lab-based) and compact technique (colorimetric and electrochemical). Right after introduction section, a first section covers the types, chemical structure and risks of OPs. Methods for detection using conventional and compact technique were discussed next. An additional section covers the limitation of conventional detection technique and advantages of compact detection technique are addressed. Several Tables are presented that give an overview on the OPs detection using conventional and compact detection technique. A concluding section addresses a brief idea on the detection method available nowadays.

 

 

OPTIMISING THE MIXING FACTOR CONDITION OF NATURAL CELLULOSE/EPOXY COMPOSITE BY USING RESPONSE SURFACE METHOD

Wan Mohd Hanif Wan Ya’acob, Nur Amira Mamat Razali, Ainil Hawa Jasni, Rusaini Athirah Ahmad Rusdi, Emee Marina Salleh, Norhana Abdul Halim

 

Abstract

The purpose of the study is to determine the optimal condition for mixing factors of natural cellulose or epoxy composite by using response surface method. Three mixing factors selected for the study were degassing agent content, stirring time, and sonication time. As a response, the fracture toughness of the composites was determined by using single edge notch bending test. The level of each factor was selected at 3 conditions which were low, medium, and high. The analysis of variance showed degassing agent content and sonication time were the most significant factors affecting the fracture toughness of the composite. The optimal conditions for mixing factors were 1.34 wt% degassing agent content, 5 minutes for stirring time, and 60 minutes for sonication time. The predicted fracture toughness was 1.6836 MPa.m0.5 with a desirability value of one. Three validation experiments were conducted to test the generated mathematical model and results showed the percentage difference was in the range of 6% to 15%.

 

 

DEVELOPMENT OF WIRELESS SENSOR TECHNOLOGIES FOR HAZE SMART GREENHOUSE

Nor Azliana Akmal Jamaludin, Mohd Nazri Ismail, Megat Fariz Azril Zuhairi

 

Abstract

Wireless Sensor Technologies (WST) is entering a new phase. Recent advances offer vast opportunities for research and development. On top of that, this is the consequence of the decreasing costs of ownership, the increase of smaller sensing devices in engineering and the achievements in radio frequency technology and digital circuits. The aim of this research was to combine the Wireless Sensor Network with ZigBee technology. It is expected to develop Haze Smart Greenhouse to control the temperature and humidity via remote automation. In addition, a GUI interface will be built to ease in controlling and managing the prototype through computer via wired and wireless technology. This Haze Smart Greenhouse prototype will be proposed to be developed and tested with operational via remote automation.

 

 

KNOWLEDGE, ATTITUDE AND PRACTICE OF THE USE OF ANTIBIOTICS AMONG STUDENTS AND STAFF AT A LOCAL UNIVERSITY IN MALAYSIA

Adlina Suleiman, Hanisah N, Nurul Syazana M. Z .C, Sughashini S, Nur Farah Zulaikha M. F, Halyna Lugova, Aqil Mohammad Daher, Anne Jamaluddin

 

Abstract

Inappropriate use of antibiotics (AB) is a significant public health problem. Understanding the patterns of AB-taking behaviour helps in designing educational campaigns to curb the overuse of AB. The objective of this study was to determine the levels of knowledge, attitudes and practices (KAP) of AB usage among students and staff at the National Defence University of Malaysia. This cross-sectional study was conducted in July 2018. A self-administered questionnaire was used. Data were described by frequencies and percentages. Chi-square test was used to compare KAP levels between students and staff. The level of significance was established as p ≤ 0.05. This study revealed that fair level of knowledge about AB usage did not translate into positive attitudes and high levels of practices. Overall, students demonstrated poorer KAP regarding indiscriminate usage of AB than staff. Specifically, students had poorer knowledge about its role in ineffectiveness of treatment (p=0.013) and additional burden of medical cost to the patient (p=0.001). Additionally, students were more likely than staff to give the leftover AB to their friends if they become sick (p=0.024). The findings of this study may serve as a preliminary insight on the development of an effective intervention to improve attitudes and practices regarding AB usage.

 

 

e-ISSN: 2773-5281

 

Page 1 of 2