ah-lian Kor

ah-lian Kor
Leeds Beckett University | LEEDS MET · School of Built Environment Engineering and Computing

PhD

About

122
Publications
33,685
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504
Citations
Additional affiliations
May 2005 - present
Leeds Beckett University
Position
  • Professor (Associate)

Publications

Publications (122)
Conference Paper
Full-text available
The continuous improvement in energy efficiency of existing data centers would help reduce their environmental footprints. Greening of Data Centers could be attained using renewable energy sources or more energy efficient compute systems and effective cooling systems. A reliable cooling system is necessary to generate a persistent flow of cold air...
Article
Full-text available
The prevalent demand for remote data sharing and connectivity has catalysed the development of many wireless network technologies. However, low-power and low-rate wireless network technologies have emerged as the preferred choice (due to cheap procurement and maintenance cost, efficiency, and adaptability). Currently, these groups of wireless netwo...
Article
Full-text available
This paper discusses the challenge of modeling in-flight startle causality as a precursor to enabling the development of suitable mitigating flight training paradigms. The article presents an overview of aviation human factors and their depiction in fuzzy cognitive maps (FCMs), based on the Human Factors Analysis and Classification System (HFACS) f...
Article
Full-text available
Nature-Inspired Optimization (NIO) algorithms have become prevalent to address a variety of optimization problems in real-world applications because of their simplicity, flexibility, and effectiveness. Some application areas of NIO algorithms are telecommunications, image processing, engineering design, vehicle routing, etc. This study presents a c...
Article
Full-text available
Data centers aim at provisioning on-demand processing, storage and networking capabilities in a reliable and scalable way. In this context, proper maintenance of IT equipment within data center (DC) premises is crucial as it ensures prolonged lifetime of servers and uninterrupted availability of resources. This paper focuses on the analysis how the...
Article
Full-text available
Due to the alarming rate of climate change, fuel consumption and emission estimates are critical in determining the effects of materials and stringent emission control strategies. In this research, an analytical and predictive study has been conducted using the Government of Canada dataset, containing 4973 light-duty vehicles observed from 2017 to...
Preprint
The research field of cloud computing has witnessed tremendous progress as commercial cloud providers brought powerful distributed infrastructures within reach of small and medium enterprises (SMEs) through their revolutionary pay-as-you-go model. Simultaneously, the popularisation of containers has empowered virtualisation with seamless orchestrat...
Chapter
Full-text available
Sustainable issues have become more serious due to the rapid development of the global economy. Sustainable design is an approach for designing or creating sustainable products/solutions based on sustainable development principles. Patent documents contain a lot of useful inventive information which will be useful for sustainable product design. Ho...
Article
Full-text available
It is widely accepted that human activities largely contribute to global emissions and thus, greatly impact climate change. Awareness promotion and adoption of green transportation mode could make a difference in the long term. To achieve behavioural change, we investigate the use of a persuasive game utilising online transportation mode recognitio...
Presentation
Full-text available
Invited Lecture, Supported by Ce-BMI
Article
Full-text available
Society and human needs SDG2 Zero Hunger-(i) smart and precision agriculture technologies to increase productivity and reduce waste; (ii) water safety innovation for consumption and flood preventions; (iii) food safety innovation to maintain good health; SDG3 Good Health and Well Being-(i) smart and personalized health to improve quality of life an...
Presentation
Full-text available
Invited Lecture
Preprint
Full-text available
Cloud computing has seen rapid growth and environments are now providing multiple physical servers with several virtual machines running on those servers. Networks have grown larger and have become more powerful in recent years. A vital problem related to this advancement is that it has become increasingly complex to manage networks. SNMP is one st...
Chapter
In a smart city environment, Data Centers (DCs) play a fundamental role, since they enable urban applications by processing big data which comes from inter- connected systems. These processing demands have led to a tremendous increase in DC power consumption. Therefore, the concepts of DC energy efficiency and sustain- ability represent future chal...
Article
Full-text available
“AI for Sustainability and Innovation” aims to support GESI’s Smarter2030 initiative and the UN’s Sustainable Development Goals in order to contribute to a sustainable future. This theme encompasses theoretical and applied research to address challenges relating to society and human needs (SDG2 Zero Hunger: autonomous machines, smart, and precision...
Article
Full-text available
An algorithmic approach for the assessment of the survivability is proposed that is based on Lanchester's modified deterministic model. Methods are suggested for increasing the available time capability for nuclear power plant monitoring and coverage, using the required or a limited number of the operable drones,. Dependencies of the variance betwe...
Article
Full-text available
Internet of Things (IoT) coupled with big data analytics is emerging as the core of smart and sustainable systems which bolsters economic, environmental and social sustainability. Cloud-based data centers provide high performance computing power to analyze voluminous IoT data to provide invaluable insights to support decision making. However, multi...
Conference Paper
Full-text available
Building Information Modelling (BIM) is an intelligent 3D model-based process that gives asset managers the insight and tools to manage buildings and associated infrastructure more efficiently. BIM is the industry standard model to deliver insight on how a building will perform once built and to manage its performance and asset lifecycles. While BI...
Conference Paper
Full-text available
An asset is anything with actual or potential value to an organisation. An asset costs money to operate and its performance should be measureable, therefore an asset could be university building, an office block, a meeting room, a lift or an air conditioner unit. Sustainability within a built environment should be considered throughout the asset’s...
Article
Full-text available
The energy efficiency of Data Center (DC) operations heavily relies on a DC ambient temperature as well as its IT and cooling systems performance. A reliable and efficient cooling system is necessary to produce a persistent flow of cold air to cool servers that are subjected to constantly increasing computational load due to the advent of smart clo...
Preprint
Full-text available
Energy efficiency of Data Center (DC) operations heavily relies on IT and cooling systems performance. A reliable and efficient cooling system is necessary to produce a persistent flow of cold air to cool servers that are subjected to constantly increasing computational load due to the advent of IoT- enabled smart systems. Consequently, increased d...
Article
Full-text available
Greening of Data Centers could be achieved through energy savings in two significant areas, namely: compute systems and cooling systems. A reliable cooling system is necessary to produce a persistent flow of cold air to cool the servers due to increasing computational load demand. Servers’ dissipated heat effects a strain on the cooling systems. Co...
Article
Full-text available
Big Data applications have become increasingly popular with the emergence of cloud computing and the explosion of artificial intelligence. The increasing adoption of data-intensive machines and services is driving the need for more power to keep the data centers of the world running. It has become crucial for large IT companies to monitor the energ...
Conference Paper
Full-text available
Loss of control in-flight (LOC-I), following loss of situational awareness and startle has been identified as a leading cause of aviation-based fatalities in recent decades. This has led to significant effort toward improving safety records, particularly in the fields of flight crew training and in-flight support technologies that aid better decisi...
Chapter
Full-text available
This study attempts to model smoking behavior in the United States using Current Population Survey data from 2010 and 2011. An array of demographic and socioeconomic variables is used in an effort to explain smoking behavior from roughly 139,000 individuals. Two regression techniques are employed to analyze the data. These methods found that indivi...
Conference Paper
Full-text available
PERCCOM (PERvasive Computing and COMmunications in sustainable development) Masters is the first innovative international programme in Green ICT for educating and equipping new IT engineers with Green IT skills for sustainable digital applications design and implementation. After five years of running the PERCCOM programme, this paper provides an a...
Chapter
Full-text available
This work analyzes a very subtle kind of energy metrics for Data Centers (DCs), namely productivity metrics which affect the global energy efficiency assessment in a DC since they focus on the energy used for processing computing operations. By exploiting the available set of energy consumption data concerning operating systems in ENEA-DC, HPC-Clus...
Chapter
Full-text available
This research aims to assess and evaluate the impact on sustainability in buildings through implementation of ICT Smart Systems. The setting for this research will be for a large global organisation’s headquarters in Germany. The list of objectives is: to audit the ICT infrastructure used and to survey the existing smart systems implemented; to inv...
Conference Paper
Full-text available
Loss of control in-flight (LOC-I), precipitated by a loss of situational awareness and the presence of startled responses has been identified as a leading cause of aviation-based fatalities in recent decades. This has led to significant effort toward improving safety records, particularly in the fields of flight crew training and in-flight support...
Article
Full-text available
There has been increasing demand for multiview video transmission over band limited channel over past years and various techniques have been proposed to fulfil this need. In this paper, a High Efficiency Video Codec (HEVC) based spatial resolution scaling type of mixed resolution coding model, MRHEVC-MVC, for frame interleaved multiview videos is p...
Chapter
Full-text available
This book chapter is adapted from El Khoury in Assessing the benefit of deploying EEE on commercial grade network switches, Unpublished PERCCOM Masters Dissertation, University of Lorraine, Nancy, France, 2017, [1] and it is closely linked to work published in Kharchenko et al. (eds.) in Green IT engineering: concepts, models, complex systems archi...
Chapter
Full-text available
This paper is an extension of (Cristea et al. in International SEEDS conference, 2015) [1] and abstracted from (Cristea in Energy consumption of mobile phones, 2015) [2]. This research contributes to the potential of greening software application as discussed in (Kharchenko et al. in Green IT engineering: concepts, models, complex systems architect...
Chapter
Full-text available
Our previous work focuses on how the nine tiles in the 2-D projection-based model for cardinal directions can be partitioned into sets based on horizontal and vertical constraints (called Horizontal and Vertical Constraints Model). In this paper, the 2-D Horizontal and Vertical Constraints model is adapted and extended into a 3-D Horizontal and Ver...
Article
Full-text available
PERCCOM (PERvasive Computing and COMmunications in sustainable development) Masters is the first innovative international programme in Green ICT for educating and equipping new IT engineers with Green IT skills for sustainable digital applications design and implementation. After five years of running the PERCCOM programme, this paper provides an a...
Conference Paper
Full-text available
The study and analysis of energy efficiency in Data Centers (DCs), through a set of globally accepted metrics, is an ongoing challenge. In particular, the area of productivity metrics is not completely explored, and there is no existing proposed metrics, which provides a direct measurement of the useful work in a DC. This paper proposes a methodolo...
Article
Full-text available
With the emergence of Web 2.0 technology, governments are able to deliver quality services and fully satisfy the needs of their citizens. Despite the importance of this emerging trend, identifying and attracting an audience for government-affiliated social media (SM) services has proved to be a significant challenge. The figures for public particip...
Conference Paper
Full-text available
This work analyzes a very subtle kind of energy metrics for Data Centers (DCs), namely productivity metrics which affect the global energy efficiency assessment in DC since they focus on the energy used for processing computing operations. By exploiting the available set of energy consumption data of operating systems in ENEA-DC, HPC-Cluster, the a...
Article
Full-text available
: This paper presents a High Efficiency Video Codec (HEVC) based spatial mixed-resolution stereo video codec. The proposed codec applies a frame interleaving algorithm to reorder the stereo video frames into a single stream of monoscopic video. The challenge for mixed-resolution video coding is to enable the codec to encode frames with different fr...
Conference Paper
Full-text available
In the context of smart cities, ‘smartness’ is achieved via Information and Communication Technologies (ICTs). They offer new interdisciplinary opportunities to improve services, integrate different infrastructures while reducing resource consumption, greenhouse gases (GHG) and other polluting emissions. Meanwhile, ICT itself consumes power and has...
Book
Full-text available
The three-volume book contains theoretical materials for lectures and training modules developed in frameworks of project “Internet of Things: Emerging Curriculum for Industry and Human Applications /ALIOT” (Project Number: 573818-EPP-1-2016- 1-UK-EPPKA2-CBHE-JP, 2016-2019) funded by EU Program ERASMUS+. Volume 1 describes challenges, principles an...
Conference Paper
Full-text available
The increasing amount of malware variants seen in the wild is causing problems for Antivirus Software vendors, unable to keep up by creating signatures for each. The methods used to develop a signature, static and dynamic analysis, have various limitations. Machine learning has been used by Antivirus vendors to detect malware based on the informati...
Article
Full-text available
A mobile ad hoc network (MANET) is a self-configuring wireless network in which each node could act as a router, as well as a data source or sink. Its application areas include battlefields and vehicular and disaster areas. Many techniques applied to infrastructure-based networks are less effective in MANETs, with routing being a particular challen...
Article
Full-text available
The subject matter of the article is the processes of cybersecurity assessment. The goal is to develop a technique for gap-analysis of cybersecurity analysis process. The task to be solved is to develop a method for analyzing gaps in the process of assessment of non-functional requirements for safety and cybersecurity of ICS. It is based on the cla...
Article
Full-text available
A real PV array combined with two storage solutions (B, battery, and H, hydrogen reservoir with electrolyzer-fuel cells) is modeled in two geolocations: Oxford, UK, and San Diego, California. All systems meet the same 1-year, real domestic demand. Systems are first configured as standalone (SA) and then as Grid-connected (GC), receiving 50% of the...
Chapter
Full-text available
This book chapter is an extended version of (Kor et al., SMART-ITEM: IoT-Enabled Living. Proceedings of IEEE Future Technologies Conference 2016, San Francisco, 6–8 December, 2016). The main goal of this proposed project is to harness the emerging IoT technology to empower elderly population to self-manage their own health and stay active, healthy,...
Chapter
Full-text available
This book chapter is an extension of (Bazarhanova et al., Belief rule-based environmental responsibility assessment for small and medium-sized enterprises (note: this includes a comparison with fuzzy logic), Proceedings of 2016 IEEE Future Technologies Conference, 6–7 December, San Francisco, US, 2016; Bazarhanova et al., A Belief Rule-Based Enviro...
Chapter
Social media has become an integral part of many people's lives around the world. The main use of this communication channel is to connect with social circles. It is also widely used for commercial and business purposes. Governments are also keen to use social media as an alternative to the traditional communication channels. Nonetheless, when the...
Conference Paper
Full-text available
This paper conducts a comparative analysis of the primary features or parameters which form the building blocks for the OSI layer of seven major wireless network technologies: ANT, ZigBee, WirelessHART, ISA100.11a, Thread, Sigfox, and Z-Wave. Not only do these technologies support a personal area network but are primarily developed for sensors and...
Conference Paper
Diversity and subdiversity-oriented systems applied in safety critical industry systems are analyzed through the use of the classification scheme described in standard NUREG7007. This classification is specified considering diversity of hardware and FPGA designs. In particular, diversity of hard logic and soft processors, interfaces and buses, self...
Conference Paper
Full-text available
Modern smartphones have become indispensable for many people around the world as they continue to evolve and introduce newer functions and operations. Battery capacity has however failed to keep up with the rate at which smartphones have evolved in recent years, which has led to rapid battery drain and the need for users to discard and replace them...
Conference Paper
Full-text available
It is now widely accepted that human behaviour accounts for a large portion of total global emissions, and thus influences climate change to a large extent (IPCC, 2014). Changing human behaviour when it comes to mode of transportation is one component which could make a difference in the long term. In order to achieve behavioural change, we investi...
Conference Paper
Full-text available
Evidence suggests that physical activity brings substantial health benefits while its absence causes several health issues. As people become more aware of negative health outcomes associated with physical inactivity, the shift from sedentary lifestyles to healthier ones occurs, and physical activity tracking apps may help in this regard. While mobi...
Chapter
Simple Network Management Protocol (SNMP) is an application-layer protocol that is used to monitor IP based devices. Also it can monitor and manage IP based devices without impacting their performance. SNMP is also used in a cloud computing environment to monitor and control virtual machines. However, currently, there is limited published research...
Article
Full-text available
A rapidly emerging trend in the IT landscape is the uptake of large-scale datacenters moving storage and data processing to providers located far away from the end-users or locally deployed servers. For these large-scale datacenters power efficiency is a key metric, with the PUE (Power Usage Effectiveness) and DCiE (Data Centre infrastructure Effic...
Chapter
Full-text available
This paper is an extended version of Azmi et al. (The 2015 International Conference on Embedded Systems and Applications, 2015 [1]). This research aims to compare the energy efficiency in between two generations Intel processors; the 4th Gen Intel® Core™ Processor and 3rd Gen Intel® Core™ Processor. It also surveys the technologies that provide bet...
Chapter
Social media has become an integral part of many people’s lives around the world. The main use of this communication channel is to connect with social circles. It is also widely used for commercial and business purposes. Governments are also keen to use social media as an alternative to the traditional communication channels. Nonetheless, when the...