Trading Wireless Information and Power Transfer: Relay Selection to Minimize the Outage Probability

This paper studies the outage probability minimization problem for a multiple relay network with energy harvesting constraints. The relays are hybrid nodes used for simultaneous wireless information and power transfer from the source radio frequency (RF) signals. There is a trade-off associated with the amount of time a relay node is used for energy and information transfer. Large intervals of information transfer implies little time for energy harvesting from RF signals and thus, high probability of outage events. We propose relay selection schemes for a cooperative system with a fixed number of RF powered relays. We address both causal and non-causal channel state information cases at the relay--destination link and evaluate the trade-off associated with information/power transfer in the context of minimization of outage probability.Comment: IEEE GlobalSiP, 201

Tapak warisan arkeologi Lembah Bujang: keunikan arkeopelancongan di negeri Kedah / Farhana Abdullah...[et.al]

Tapak warisan arkeologi yang terletak di sekitar Lembah Bujang mempunyai keunikan tersendiri terutama dari aspek nilai arkeopelancongan Negara. Namun, tapak-tapak ini mempunyai keunikan tersendiri yang perlu di ketengahkan. Tapak pertama yang di temui oleh James Low pada tahun 1840 –an menjadikan kawasan Lembah Bujang diberi tumpuan untuk penyelidikan seterusnya. Kertas kerja ini akan mengupas dan menonjolkan keistimewaan tapak warisan arkeologi Lembah Bujang untuk pengetahuan umum khususnya generasi muda. Tapak warisan yang terdiri daripada candi-candi di sekitar Lembah Bujang melebihi ratusan tahun merupakan sesuatu yang unik dan harus dibanggakan kerana di situlah tercetusnya nilai sejarah sesuatu tamadun bangsa. Kaedah penyelidikan bagi kertas kerja ini adalah berdasarkan kepada kaedah soal selidik dengan menggunakan data Statistical Package For Social Sciences (SPSS) yang telah dijalankan terhadap penduduk, pelancong di sekitar Lembah Bujang iaitu sebanyak 400 responden. Kajian ini mendapati bahawa lokasi pelancongan warisan dan sejarah menjadi tarikan utama arkeopelancongan di Lembah Bujang iaitu berasaskan tapak warisan arkeologi

Strategi Pembuatan Terhadap Prestasi Syarikat Industri Kecil dan Sederhana (IKS)

Malaysian Small Medium Industry (SMI) is between major catalyst on Gross Domestic Product growths and Gross National Product Country. A various of effort and encouragement given through 2010 budget to enable SMI helps increase country revenues, reduce poverty gap and further improving citizens per capita income, create regular income distribution, reduce inflation rate, creates balancing in balance of payment and acts as complement bigger industry. Unstable in world economics and raw material prices uncertainty need SMI regulates strategy especially in manufacturing strategy so that SMI can competes in market. So refer to this problems, the aim’s this study is to knows how manufacturing strategy relationship namely quality, cost, delivery and level flexible to company performance. Sample has been identified through information prepared by factory under MARA, SME banks and halal food factory in Padang Tembak, Kelantan namely particularly suitable to knows manufacturing strategy. As much as 358 research questions was removed to his respondent and result 112 questionnaires succeed to picks again namely as much as 31.3% respondents rates were obtained. The analyzes purpose the researcher use descriptive analysis and ANOVA. The research results showed that all the variables in manufacturing strategy undeniably had relationship on company performances

An Examination of the Structure of Sustainable Facilities Planning Scale for User Satisfaction in Nigerian Universities

Universities are under increasing pressure to demonstrate that continuous performance improvement is being delivered for user satisfaction, but the importance of facilities planning as a student-staff focused tool needs to be emphasised. This research sought answers to questions relating to the underlying structure of sustainable facilities planning and user satisfaction, and the number of factors that make up the facilities planning scale. Three universities from the south-western part of Nigeria were selected randomly using ownership structure to define the cases: University of Lagos, Akoka, Lagos, Ladoke Akintola University of Technology, Ogbomoso and Joseph Ayo Babalola University, Ikeji Arakeji, each representing the Federal, State, and Private ownership. A questionnaire survey was used on a random sample of 651 staff and students from the three universities. Six hundred questionnaires were retrieved (response rate of 92.2%). An exploratory factor analysis was used to understand the responses and the interrelationships. The results showed a two-factor solution of ‘locational advantages and user needs’ and ‘adequacy of facilities/functional connection and four core determinants for acceptance. It is concluded that universities should factor student-staff focus points into their facilities planning schemes to optimise their service deliveries. The study contributes to the discussion on factor structure of sustainable facilities planning scale with a focus on students and staff of universities. Keywords: Facilities planning, universities, data structure, factors, Nigeria

UPAYA GURU AKIDAH AKHLAK DALAM MEMBANGUN KECERDASAN SPRITUAL SISWA DI MADRASAH ALIYAH NURUSSA’ADAH TELUK RENDAH ILIR KECAMATAN TEBO ILIR KABUPATEN TEBO

Skripsi ini membahas tentang Upaya Guru Akidah Akhlak Dalam Membangun Kecerdasan Spritual Pada Siswa di Madrasah Aliyah Nurussa’adah Teluk Rendah Ilir Kecamatan Tebo Ilir Kaupaten Tebo. Adapun yang menjadi tujuan penelitian ini adalah untuk mengetahui Pelaksanaan Guru Akidah Akhlak Dalam Membangun Kecerdasan Spritual Pada Siswa di Madrasah Aliyah Nurussa’adah Teluk Rendah Ilir, mengetahui kendala serta upaya dalam membangun kecerdasan spiritual pada siswa di Madrasah Aliyah Nurussa’adah Teluk Rendah Ilir. Metode yang dilakukan dalam penelitian ini adalah metode kualitatif sedangkan alat pengumpulan data meliputi wawancara, observasi dan dokumentasi. Penelitian ini dilakukan di sekolah Madrasah Aliyah Nurussa’adah Rt. 06 Teluk Rendah Ilir Kecamatan Tebo Ilir Kabupaten Tebo. Informan dalam penelitian ini yaitu guru Akidah Akhlak, dan majelis guru yang telah dipilih dan diwawancarai untuk mendapat informasi yang diperlukan dalam penelitian ini, yang kemudian peneliti analisa untuk mendapatkan hasil dari penelitian tersebut. Dari hasil penelitian yang dilakukan oleh peneliti terhadap sekolah Madrasah Aliyah Nurussa’adah Teluk Rendah Ilir sebagai lembaga formal yang ada di Desa Teluk Rendah Ilir dalam membangun kecerdasan spiritual dalam segi memperbanyak ilmu-ilmu agama untuk tatanan kehidupan yang islami dan bermanfaat

Energy Efficient Cooperation in Underlay RFID Cognitive Networks for a Water Smart Home

Shrinking water  resources all over the world and increasing  costs of water consumption  have prompted  water users  and distribution companies  to come up with water conserving strategies. We have proposed an energy-efficient  smart water monitoring application in [1], using low power RFIDs. In the home environment,  there exist many primary interferences within a room, such as cell-phones,  Bluetooth  devices, TV signals, cordless phones and WiFi devices.  In order to reduce the interference  from our proposed RFID network for these primary  devices, we have proposed a cooperating  underlay  RFID cognitive network for our smart application on water.  These underlay  RFIDs should strictly adhere to the interference thresholds to work in parallel with the primary wireless devices [2].  This work is an extension of our previous  ventures proposed in [2,3], and we enhanced the previous efforts by introducing  a new system model and RFIDs.  Our proposed scheme is mutually energy efficient and maximizes the signal-to-noise ratio (SNR) for the RFID link, while keeping the interference levels for the primary  network below a certain threshold. A closed form expression for the probability density function (pdf) of the SNR at the destination reader/writer and outage probability are derived. Analytical results are verified through simulations. It is also shown that in comparison to non-cognitive selective cooperation,  this scheme performs  better in the low SNR region for cognitive networks. Moreover, the hidden Markov model’s (HMM) multi-level variant hierarchical hidden Markov model (HHMM) approach is used for pattern recognition and event detection for the data received for this system [4]. Using this model, a feedback and decision algorithm is also developed.  This approach has been applied  to simulated water pressure data from RFID motes, which were embedded in metallic water pipes

Clinical Outcomes of physiologically-guided revascularisation

Objective: To assess the clinical outcomes of revascularisation based on fractional flow reserve (FFR) and/or instantaneous wave-free ratio (iFR).Study design: Descriptive study.Place and duration of study: Department of Medicine, The Aga Khan University Hospital, Karachi from January 2012 to January 2020.Methodology: A cohort of patients having moderate to severe coronary stenosis, undergoing coronary revascularisation based on invasive physiological assessment (FFR or iFR) were assessed. The participants were divided into the revascularisation-deferred group and the revascularization-performed group, based on the physiological results. Cox-proportional hazard model building was done, using a stepwise approach by assessing all plausible interactions and considering p-value ≤0.05 as statistically significant.Results: The frequency of major adverse cardiac event (MACE) and target vessel revascularisation was 8.4% and 3.2% in the revascularisation-performed group as compared to 6.4% and 3.2% in the revascularisation-deferred group. In adjusted models, no statistically significant difference was noted in MACE when comparing the revascularisation-performed group with a deferred group.Conclusion: Revascularisation guided by invasive physiological assessment with FFR or iFR is clinically safe and led to better resource utilisation. Key Words: Fractional flow reserve, Instantaneous wave-free ratio, Invasive physiological assessment, Low-middle income country

A multi-criteria framework for office tenants' preferences at office buildings

In order to mitigate the anticipated oversupply of office space, it is necessary to gauge the preference of office occupiers, namely tenants of purpose built office buildings, since these tenants form the indicator of demand for space. In this study, a multi-criteria decision making method (MCDM) – the Analytic Hierarchy Process (AHP) procedure was employed to analyse the relative importance of the main factors chosen by the main sectors of tenants at top grade office buildings in Kuala Lumpur city centre. This study had identified the elicitation of experts’ opinion and tenants’ selection comprises twenty-six important factors for office occupation in Kuala Lumpur city centre, grouped under four main categories: Location, Lease, Building and Financial/Cost. This study then employed AHP to assess the relative importance placed on each category, revealing the varying patterns of preferences when tested on tenants from three main business sectors occupying top grade office buildings. The findings showed that, between the three sectors (Finance/Banking, ICT & Media and Oil & Gas), differences in preference were only slight for most factors but were significant for a few. The findings from this study are insightful in informing decisions on future office provision, particularly in the context of working towards satisfying office tenants’ requirements

A Simulation Platform for Evaluating RFID and WSN’s Energy Efficiencies

Advances in the wireless, RFID and sensor technologies has given rise to a plethora of diverse WSN motes that can be used in association with numerous applications. Experimenting with new MAC algorithms and various functionalities on a real sensor network to obtain energy efficiency is both time consuming and expensive especially when these different mote platforms are deployed in one application. Generally Simulators are used to approximate the performance of MAC protocols. Out of the numerous simulators available, none can simulate the energy efficiencies given different types of motes and environments in one application. Hence, the need of a simulation platform for a mix deployment of different types of WSNs and RFIDs is felt to access application performance requirements while curtailing energy consumption to enhance application lifetime. In this paper, we presents an extension of our effort EnergySim [1], which is a simulation platform developed dedicatedly for evaluating energy efficiencies. In this paper we have discussed the simulation modes, methodology and architecture of our proposed simulator with some future extensions presented at the end of the paper