Yuan Wen Hau

• University of Technology Malaysia

Aim Simulators for aortic dissection diagnosis are limited by complex anatomy influencing the accuracy of point-of-care ultrasound for diagnosing aortic dissection. Therefore, this study aimed to create a healthy ascending aorta and class DeBakey, type II aortic dissection simulator as a potential point-of-care ultrasound training model. Material...

Covid-19, also known as coronavirus disease 2019, is a highly contagious disease primarily transmitted through respiratory droplets. To mitigate the spread of the virus, the Malaysia government have implemented measures such as MySejahtera app for contact tracking purposes. The ‘Check-in’ feature is the core element in MySejahtera app where users w...

The study discusses the impact of COVID-19 in our daily lives and how social distancing is an effective method to prevent the spread of the virus. The paper highlights the importance of maintaining social distancing in crowded areas such as retail shops, which are at high risk of COVID-19 spread. To ensure social distancing, retail shops usually hi...

Infectious diseases have always been a serious discussion worldwide due to their disease elevation leading to mortality. Although vaccination and prevention exist for this kind of disease, the severity is still in many countries, especially COVID-19. Diagnosing these diseases typically relies on time-consuming laboratory tests, conventional vital s...

Pneumonia and COVID-19 are the most infected infectious diseases that deteriorate health of all range of people. If the early treatment is not provided, it may lead to severe heart disease and eventually to mortality. Therefore, continuous heart rate (HR), as well as blood oxygen saturation (SpO2) monitoring can help to detect abnormalities early....

Cardiovascular disease (CVD) is a heart related disease and is the top silent killer in worldwide. Frequent electrocardiogram (ECG) monitoring for patients with CVD is vital to check if arrhythmia occurs. Though there are lots of commercialized portable ECG monitoring device available, many of them are dedicated to professional clinical staff with...

Stroke is one of the most severe cardiovascular disease which can potentially cause permanent disability. Atrial Fibrillation (AF) is one of the major risk factors of stroke that can be detected from electrocardiogram (ECG) monitoring. Objective This study proposed an AF detection algorithm based on stationary wavelet transform (SWT) and artificia...

Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopment psychiatric disorder which causes inattention, hyperactivity, or impulsivity, that directly leads to the learning disability in children. The conventional ADHD diagnosis method such as behavioural rating scare required long term behavior observation and subjective interpretation...

Tracking and detection of the deterioration of vital signs have always been a challenging issue since it always happens suddenly and is associated firmly with serious problems such as recurrent readmissions of patients, increases mortalities, and very little time window left for the clinician to take prompt medical action to treat the patient upon...

In network-on-chip (NoC) based multi-processor system-on-chip (MPSoC) development, application profiling is one of the most crucial step during design time to search and explore optimal mapping. Conventional mapping exploration methodologies analyse application-specific graphs by estimating its runtime behaviour using analytical or simulation model...

Background: Atrial fibrillation (AFIB) is one of the most common types of arrhythmia, which leads to heart failure and stroke to public. As AFIB has the high potential to cause permanent disability in patients, its early detection is extremely important. There are different types of AFIB classification algorithm that have been proposed by researche...

HW/SW partitioning is an important development step during HW/SW co-design to ensure application performance in embedded System-on-Chip (SoC). This paper formulates the optimization of HW/SW partitioning aiming at maximizing streaming throughput with predefined area constraint, targeted for multi-processor system with hardware accelerator sharing c...

Hardware Transactional memory (HTM) performance is application-specific and is dependent on its version management and conflict management configurations. An adaptive mechanism is needed to adapt its configurations based on multiple application behaviour.

Abnormal heart rate or low heart rate during exercise or recovery has been known to cause cardiac arrest and even sudden death in some cases. Similarly, research has shown that low step rate while running may be the causal factor for running injuries due to the force impact exerted and the extra loadings on the lower body joints. Commercial electro...

Nowadays, many people suffer from heart problems and hence the demand of inexpensive and efficient electrocardiogram (ECG) for frequent heart monitoring is becoming crucial. To make the ECG device portable, cost-effective and light-weight, an alternative of deploying an ECG system is on Field Programmable Gate Array (FPGA). It is also important to...

Telecardiology is one of the branches from telemedicine that transmits cardiac data such as electrocardiogram (ECG) and medical records from the patient site to cardiologist for the purpose of diagnosis by using telecommunication and information technologies. Most of the current commercialized telecardiology applications are cost expensive, vendor-...

Arrhythmia is a heart disease where the heart rate is inconsistent. For some arrhythmias that can cause sudden cardiac arrest, the patient needs to be sent to the hospital for immediate treatment. Most of the current electrocardiogram (ECG) devices are bulky, cost expensive, and does not include the self-classification or interpretation ability. He...

Heart monitoring system is a device to carry out electrocardiogram (ECG) test. It can diagnose human's heart either in normal or abnormal condition based on ECG analysis. However, most of the current ECG device is bulky, expensive and lack of a user-friendly graphical user interface (GUI) for user interaction. This paper describes an on-board GUI d...

As the number of health issues caused by heart problems is on the rise worldwide, the need for an efficient and portable device for detecting heart arrhythmia is needed. This work proposes a Premature Ventricular Contraction detection system, which is one of the most common arrhythmia, based on Hermite Polynomial Expansion and Artificial Neural Net...

This paper proposes a multiobjective application mapping technique targeted for large-scale network-on-chip (NoC). As the number of intellectual property (IP) cores in multiprocessor system-on-chip (MPSoC) increases, NoC application mapping to find optimum core-to-topology mapping becomes more challenging. Besides, the conflicting cost and performa...

This paper presents a remote dynamically reconfigurable platform using NetFPGA development board. The functionalities of execution units in this platform can be updated remotely through the 1Gbps Ethernet connection without assistance from the NetFPGA host computer. This is achieved by designing custom reconfiguration controller and utilizing the I...

The shrinking size of transistors and smaller interconnect elements contribute to higher probability of on-chip faults. In order to sustain the functionality of a system in the presence of faults, fault tolerance becomes one of the key feature in Network-on-Chip (NoC) design methodology. Existing end-to-end (E2E) error detection and correction (EDC...

This paper presents a feasible transition path (FTP) generation approach for testing extended finite state machines (EFSM). The major problem faced by EFSM-based testing is the existence of the infeasible paths due to conflict of the context variable with the enable conditions in the transition path. In order to avoid infeasible path generation, th...

Network-on-chip (NoC) has been introduced as a promising on-chip communication architecture to support many IP (intellectual property) cores on a single chip. Application mapping of IP cores onto a NoC topology is considered as a NP-hard problem. The increasing number of IP cores makes NoC application mapping more challenging to obtain optimum core...

This paper presents a Network-on-Chip (NoC) simulation framework at the Electronic System Level (ESL) design abstraction based on SystemC. The proposed ESL NoC framework extends the NIRGAM NoC simulator by integrating ARM Instruction Set Simulator (ISS) as its application Intellectual Property (IP) cores. This enables the modelling of complex homog...

This paper presents the hardware-software co-design of an elliptic curve cryptographic (ECC) system-on-chip (SoC) implementation of a mutual authentication protocol for network/data communication systems. Designing such computationally intensive cryptosystems, particularly for resource-constrained embedded applications using the conventional regist...

This paper presents CODESL, a SystemC-based hardware-software co-design and co-simulation framework for embedded systems based on System-on-Chip (SoC). This modelling platform, which works at Electronic System Level (ESL), enables early system functionality verification, as well as algorithm exploration before the final implementation prototype is...

Today, designs of electronic systems are driven by application-specific embedded systems and system-on-chip (SoC). Designing these systems with conventional RTL-centric approach takes extremely long simulation cycles and painful verification process. The trend now is to describe these systems at a higher level of design abstraction. In this paper,...

The widespread adoption of Internet as a secure medium for communication and e-commerce has made cryptography a vital part of today's information systems. However, to achieve a more pervasive deployment, the supporting cryptographic (crypto) systems should exhibit processing power of high performance and efficiency. These demanding requirements can...

The development of digital designs today is much more complex than before, as they now impose more severe demands and require greater number of functionalities to be conceived. The current approach, based on the register transfer level (RTL) design methods, can result in extremely long simulation time compounded with time-consuming verification pro...

This work presents the implementation of a tightly-coupled hardware architectural enhancement to the Altera FPGA-based Nios II embedded processor. The goal is to accelerate finite field arithmetic operations in the binary fields of F2 163 and F2 193, for application in a high-performance embedded system implementing elliptic-curve cryptography (ECC...

Information security in terms of confidentiality, data integrity, nonrepudiation and authentication is one of the critical aspects in majority of electronic communication and computer networks, especially in high speed security system. This thesis proposes an embedded cryptosystem design prototype, which consist of hybrid encryption cryptosystem an...