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Dive into the research topics where Ahmed M. Al-Naamany is active.

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Featured researches published by Ahmed M. Al-Naamany.


IEEE Transactions on Instrumentation and Measurement | 2010

A Multisensor Intelligent Device for Real-Time Multiphase Flow Metering in Oil Fields

Mahmoud Meribout; Nabeel Al-Rawahi; Ahmed M. Al-Naamany; Ali Al-Bimani; Khamis Al-Busaidi; Adel Meribout

In this paper, a new multiphase flow metering device for real-time measurement of oil, gas, and water flow rates is presented. It is composed of several electrical and acoustic sensors whose signals are digitalized and processed by a multilayer neural network. This latest uses the physical models of multiphase fluids to reduce the complexity of the parameter space while improving its accuracy. Furthermore, to overcome the uncertainties of the electrical sensors in the range of 40%-60% and above 90% water-cut (i.e., ranges where most of the multiphase flow meter fail), two rings of high- and low-frequency ultrasonic sensors are used for low and high gas fractions, respectively. The results of experiments that have been conducted in an in-house laboratory-scale multiphase flow loop show that real-time classification for up to 90% gas fraction can be achieved with less than 10% relative error.


IEEE Transactions on Instrumentation and Measurement | 2007

Design and Implementation of a New Nonradioactive-Based Machine for Detecting Oil–Water Interfaces in Oil Tanks

Ahmed M. Al-Naamany; Mahmoud Meribout; Khamis Al Busaidi

In the oil industry, many applications require the measurement of more than one liquid level interface, often in challenging environments. In this paper, a new ultrasonic-based technique has been developed to determine oil, emulsion, and water levels in oil tanks. It consists of a compact and programmable ultrasound-based multilayer level measurement device for which a feed-forward neural network is implemented. The advantages of this method over current methods include contactless distance measurement, higher accuracy, lower cost, simpler setup, and not using ionizing radiation. The other advantage of this technique over light-based methods is its insensitivity to a dusty and smoky environment and independence of the object material and surface. Preliminary experiments have been conducted on the device. In this paper, the design and operating parameters of the device are discussed, and evidence of satisfactory performance is given.


instrumentation and measurement technology conference | 2004

A new ultrasonic-based device for accurate measurement of oil, emulsion, and water levels in oil tanks

Mahmoud Meribout; Mohamed Habli; Ahmed M. Al-Naamany; Khamis Al-Busaidi

In the oil industry, many applications require the measurement of more than one liquid level interface, often in challenging, environments. In this paper, an ultrasonic technique has been developed to examine the propagation of ultrasonic waves in the oil, water, and mixed oil-water liquids. Preliminary experiments have been conducted on the device. In this paper, the design and operating parameters of this device are discussed and evidence for the satisfactory performance is given.


PWC '02 Proceedings of the IFIP TC6/WG6.8 Working Conference on Personal Wireless Communications | 2002

Development of a Strong Stream Ciphering Technique Using Non-Linear Fuzzy Logic Selector

Ahmed M. Al-Naamany; Afaq Ahmad

This paper introduces a new methodology of producing Pseudo- Random Binary Sequence (PRBS) of high complexity while with lesser burden of the processing requirements. The key idea behind the implementation of the proposed methodology is the use of a nonlinear fuzzy logic selector. A set of Linear Feedback Shift Registers (LFSRs) of nominal but varying lengths is used to reduce the processing as well as hardware burdens. In the proposed scheme, the LFSRs can be loaded with different configurations according to changed characteristic polynomials and polynomial seeds. This facilitation is being arranged such that they are to be selected by fuzzy logic selector switches. Further, the inputs to the fuzzy logic selector are based on user-defined parameters.


IEEE Transactions on Instrumentation and Measurement | 2009

An Accurate Machine for Real-Time Two-Phase Flowmetering in a Laboratory-Scale Flow Loop

Mahmoud Meribout; N.Z. Al-Rawahi; Ahmed M. Al-Naamany; A. Al-Bimani; K. Al Busaidi; Adel Meribout

A new flow measurement system for real-time flow computation of a two-phase flow in an oil field is described. The system utilizes an array of ultrasound sensors together with capacitance and conductance sensors to accurately interpret the fluid composition in the whole water-cut range. The flow rate is determined using venturi and differential pressure techniques. A dedicated hierarchical neural network algorithm that relies on the various physical properties of the fluid was implemented and tested in a laboratory-scale flow loop. Experimental results demonstrated that real-time classification within a plusmn5% relative error in volumetric flow regardless of the flow regime or the fluid composition can be achieved. This is an improvement over traditional systems, where weak accuracy is usually obtained either within the 40%-60% water-cut range or in the case of a high water cut.


IFIP TC6 / WG6.2 and WG6.7 2nd International Conference on Network Control and Engineering for QoS, Security and Mobility, Net-Con 2003 | 2003

Network control and engineering for Qos, security and mobility II

Dominique Gaïti; Guy Pujolle; Ahmed M. Al-Naamany; Hadj Bourdoucen; Lazhar Khriji

Preface. 1. A Scalable Multicast Protocol With Qos Guaranties A. Benslimane, O. Mouassaoui. 2. Scheduling Requests On Multi-Stage Multi-Server To Increase Quality Of Service A. Allahverdi, F.S. Al-Anzi. 3. Analysis Of Policy Management Models And Specification Languages I. Aib, N. Agoulmine, M. Fonseca, G. Pujolle. 4. Diffserv Network Control Using A Behavioral Multi-Agent System N. Meskaoui, L. Merghem, D. Gaiti, K.Y. Kablan. 5. Policy Based Handover In Wireless And Mobile Networks H. Chaouchi. 6. Adaptive AIFS In Wireless LAN A. Ksentini, A. Gueroui, M. Naim. 7. Teletraffic Engineering Of Multi-Band W-CDMA Systems V.B. Iversen, E. Epifania. 8. Mobility Support Framework In Adaptable Service Architecture M. Malek Shiaa. 9. Ant-Routing-Algorithm For Mobile Multi-Hop Ad-Hoc Networks M. Gunes, O. Spaniol. 10. Enabling Distributed Qos Management Utilizing Active Network Technology S. Vrontis, I. Sygkouna, M. Chantzara, E. Sykas. 11. Resource Management In ASMA Platform H. Bakour, N. Boukhatem. 12. A New Hardware Algorithm For Fast IP Routing Targeting Programmable Routers M. Meribout, M. Motomura. 13. Fuzzy-Logic-Based TCP Congestion Control System A.M. Al-Naamany, H. Bourdoucen. 14. Multi-Object Video Rate Control N. Achir, G. Pujolle. 15. Buffer Occupancy Analysis For A Broadband Polling-Based WLAN A.S.H. Mahmoud, D.D. Falconer, S.A. Mahmoud. 16. A Policy Management Framework For GMPLS Optical Networks N. Rico, O.Cherkaoui, H. Elbiaze. 17. Service Level Agreement In Optical Networks M. Du-Pond, O. Audouin, B. Berde, B. Daheb, W. Fawaz, G. Pujolle, M. Vigoureux. 18. Conceptual Foundations Of User Preference Modeling Z. Chentouf, A. Khoums, S. Cherkaoui. 19. New Key Management Protocol For SSL/TLS I. Hajjeh, A. Serhrouchni, F. Tastet. 20. Management Of Security In TCP/IP Hosts Using Dedicated Monitoring Applications R. Costa Cardoso, M. Marques Freire.


Journal of Network and Systems Management | 2005

TCP Congestion Control Approach for Improving Network Services

Ahmed M. Al-Naamany; Hadj Bourdoucen

With the continuous increasing demand of Internet applications, networks are experiencing a serious congestion problem. This affects directly the networks’ services and management due to large amounts of data loss and long transmission delays. The present work suggests an improved networking congestion control approach for TCP using fuzzy logic. Its main objective is to use packet drop information to improve network services by optimizing data throughput and smoothing data transfer profiles.


international conference on electronics, circuits, and systems | 2005

Design and implementation of a new non-radioactive remote oil tank monitoring system

Mahmoud Meribout; Ahmed M. Al-Naamany; Khamis Al-Busaidi

In the oil industry, many applications require the measurement of more than one liquid level interface, often in challenging environments. In this paper, a new sonar technique has been developed for emulsion layer detection. A dedicated compact, low-cost, and programmable Multi-layer level measurement (MLLM) device has been designed and implemented. The advantages of the new method over the current methods include contactless distance measurement, higher accuracy, lower cost, user friendly, simpler setup, and using non-nuclear rays. Additionally, the use of sonar waves has the advantage over light-based methods of being insensitive to dusty and smoky environment and almost independent of the object material and surface. Preliminary experiments have been conducted on the device and evidence for the satisfactory performance is given.


IFIP TC6/ WG6.8 Working Conference on Personal Wireless Communications, PWC 2002 | 2003

Development of a strong stream ciphering technique using non-linear fuzzy logic selector

Ahmed M. Al-Naamany; Afaq Ahmad

Preface. Part 1. Power Control / MIMO Receiver Algorithm. Second-Order Statistics of Closed-Loop Power Controlled Signals in Multi-Path Rayleigh Fading Channels H. Hadinejad-Mahram, Xiaolong Jiang. Performance Comparison of Multiple-Transmit Multiple-Receive V-BLAST Algorithms Hufei Zhu,et al. Part 2. Ad-Hoc Networking. Market-based Network Formation for an Ad Hoc, P2P Wireless Network Yasunori Yamamoto, Junseok Hwang. An Efficient Proactive Routing Method for Mobile Ad-hoc Networks Using Peer-to-Peer and Cellular Communication System H. Morino, et al. A Mobile Multicast Framework for CDMA-based Ad Hoc Networks Hsu-Yang Kung, Su-Man Chen. Multipath Routing in Ad Hoc Wireless Networks with Directional Antenna S. Bandyopadhyay,et al. A Reactive Service Composition Architecture for Pervasive Computing Environments D. Chakraborty, et al. Part 3. Personal Wireless Communications. Bluetooth PAN and External IP Networks T.E. Jonvik, et al. DTV for Personalized Mobile Access and Unified Home Control J. Guo, et al. A Novel Internet Radio Service for Personal Communications: The Private Channel Service K. Arakawa, et al. Tools for On-Door Communications on WWW K. Suzumura, et al. Part 4. Buffer Control/Receiver. Buffer Control Using Adaptive MQAM for Wireless Channels A. Tuan Hoang, M. Motani. A Low Complexity Iterative Receiver Based on Successive Cancellation for MIMO H. Claussen, et al. Part 5. Satellites/High Altitude Platforms Station. Dedicated Bandwidth Approach for Channel Allocation in a Multi-Service Up/Down Link of a Low Earth Orbit Satellite Constellation R.A. Fadel, S. Tohme. Softer Handover Schemes for High Altitude Platform Station (HAPS) UMTS WooLip Lim, et al. Part 6. Quality of Service QoS. Adaptive QoS and Handover Issues in Wireless Multimedia Networks Using a Dynamic Adaptive Architecture: DYNAA R. Naja, S. Tohme. Dynamic QoS Guarantee with Repeater in Power Controlled WCDMA Urban Environment M.N. Patwary, et al. Part 7. UMTS/Wireless LANs. Very Tight Coupling of Wireless LANs and UMTS Networks: A Technical Challenge and an Opportunity for Mobile Operators M. Litzenburger, et al. Dynamic UMTS Simulator for Congestion Studies and Evaluation of Resource Management Techniques S. Nousiainen, et al. Capacity and Coverage Increase with Repeaters in UMTS M.N. Patwary, et al. Pre-Authenticated Fast Handoff in a Public Wireless LAN Based on IEEE 802.1x Model S.Pack, Yanghee Choi. Service Integration Multiple Access (SIMA) Protocol for Supporting Voice & Data in Wireless LANs A. Kanjanavapastit, H. Mehrpour. Spatial Variation of Digital Television Signal in an Indoor Environment Ong Jin Teong, et al. Part 7.1. Security. Development of a Strong Stream Ciphering Technique Using Non-Linear Fuzzy Logic Selector A.M. Al-Naamany, A. Ahmad. Part 8. Multiple Access Techniques. Wireless MAC Scheme for Service Differentiation. A Distributed Protocol A. Firag, H. Sirisena. Packet Acquisition Evaluation of Slotted Spread ALOHA Data Networks W. Jibrail, R. Liyana-Pathirana. Part 9. Code Division Multiple Access CDMA. On Erlang Capacity of CDMA Systems S.S. Kolahi. Power and Spreading Gain Allocation in CDMA Data Networks for Services with a Relative Priority Kwang-Seop Jung, et al. Adaptive Closed-Loop Power Control Using an MMSE Receiver in DS-CDMA Systems L. Zhao, J.W Mark.


International Conference on Network Control and Engineering for QoS, Security and Mobility | 2002

Erratum to: Network Control and Engineering for QoS, Security and Mobility II

Dominique Gaïti; Guy Pujolle; Ahmed M. Al-Naamany; Hadj Bourdoucen; Lazhar Khriji

Erratum to: D. Gaiti and N. Boukhatem (Eds.) Network Control and Engineering for QoS, Security and Mobility DOI: 10.1007/978-0-387-35620-4

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Khamis Al-Busaidi

Petroleum Development Oman

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Adel Meribout

Sultan Qaboos University

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Afaq Ahmad

Sultan Qaboos University

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Ali Al-Bimani

Sultan Qaboos University

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Lazhar Khriji

Sultan Qaboos University

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