Research Title: DVB-T Systems Performance Enhancement

Author: Qadri Jamal Al-Hamarsheh, Published Year: 2019

Accepted to be published in the Advances on Systems, Signals and Devices, (Issues on Communication, Signal Processing & Information Technologies), --

Faculty: Engineering and Technology

Abstract: In this work a proposition has been studied in order to check the Terrestrial Digital Video Broadcasting (DVB-T) enhancement. It deals with overcoming the effect of Peak-to-Average Power Ratio (PAPR) drawback on wireless systems? performances. For this purpose, a special averaging technique has been introduced in this work and consists of three different stages; signal?s noise removal, adaptively peak detection, and averaging filtration, consequently. In order to check the work efficiency, a MATLAB simulation has been conducted at the same bandwidth and channel conditions to deals with both of BER curves and CCDF curves. As a result, the proposed work shows promising results over the proposed work in the literature and over our previously published work. The proposed work gives extra immunity against the channel noise reaches up to 25% over the literature. Furthermore, it gives extra 15% reduction in combatting the PAPR effect.

Keywords: OFDM, PAPR, wavelet, averaging filtration, signal processing

Research Title: The role of the Royal Automobile Museum in tourism and heritage education in Jordan

Author: Rabia Hani Amin Haddad, Published Year: 2016

Taylor & Francis/ Automobile Heritage and Tourism, 39

Faculty: Nursing

Abstract: Tourism is thriving in Jordan since the peace treaty was signed with Israel in 1994, whereby tourists have flocked the country in millions (MOTA 2000). The number of tourists has doubled and tripled many times since then especially after Petra, Jordan’s foremost tourist attraction, won the second place of the World New Seven Wonders competition in 2007 (Harahsheh 2009). The latest statistics of the World Tourism Organisation (UNWTO) shows that the number of tourist arrivals to the country was 4.16 million in 2012, increased by 5.1% from 2011 (UNWTO 2013). Most of the tourists come to Jordan from the Middle East (48.2%) followed by Jordanians residing abroad (25.4%), Europe (14.2%), America (4.8%), East Asia/Pacific (4.2%), South Asia (1.9%) and Africa (1.3%). Jordan hosts a lot of natural and man-made attractions that are of great value for tourists to visit. Those include Petra, the new seven wonder of the world, the Dead Sea, the world’s lowest and saltiest natural spa, the Golf of Aqaba with its red corals as well as several Greco-Roman cities (known as the Decapolis) such as Amman (Philadelphia), Jerash (Gerasa) and Um Qais (Gadara) and Crusader castles such as Kerak, Showbak and Ajlun. Jordan hosts also a lot of important world-class museums such as the Royal Automobile Museum, the Children Museum and the Jordan Museum. This chapter in particular examines the Royal Automobile Museum (RAM) in Jordan and the role of that museum in tourism and heritage education as it hosts vintage cars, motorbikes and carting cars owned by the Royal family since 1915. The study focuses on those heritage vehicles as they are employed in the interpretation and presentation of the history of Jordan for almost now 100 years since the Hashemite rule.

Keywords: Jordan, muesums

Research Title: The influence of the Media on the formation of destination image

Author: Rabia Hani Amin Haddad, Published Year: 2009

International Conference on Traditions and Transformations: Tourism, Heritage and Cultural Change in the Middle East and North Africa Regio, Centre for Tourism and Cultural Change (CTCC), Leeds Metropolitan University

Faculty: Nursing

Abstract: Tourism destination image is formed by the media,education, promotion and the word-of-mouth recommendations. The media is playing a double role when dealing with tourism products or tourism destinations. It can create awareness in the source countries towards a certain destination and then forma positive image, and at the same time can deteriorate that destination due to situational factors such as terrorism and war, natural disasters such as Tsunami, diseases such as Bird Flu in the tourism destinations.Recently, the influence of the media upon the formation of tourism destination image in the minds of potential tourists and apparently on their decision-making process when selecting a certain a holiday destination, has increased incredibly (Lexow and Edelheim, 2004). The characteristics of the target market will affect the decision-making process, for example, family groups are most likely to use media sources of information and older people are more likely to rely on the recommendation of family and friends (Gartner, 1993). It is argued therefore, that there is a relationship between what is published in the media and tourists’ motivation to travel (Croy,2004).Through literature review of past research in this area, it is clear that the media have a real influence on the formation of tourism destination image and on the flow of tourists into that destination (Lexow and Edelheim, ibid). A bad political image of a country can have a negative impact on the country tourism image(Media Tenor, 2005). Travel warnings have a crucial impact on both the destination and source countries(Nielsen, 2001). On the other hand, the destination media plays an essential role in projecting a positive image to the target market (Media Tenor, 2006).This paper, therefore, tries to analyse the influence of the media on the formation of tourism destination image in general and to shed a light on the image of Jordan as a tourist destination as projected in the Western media, mainly Britain. Jordan has a relatively positive tourism image in both the British, but the negative political image of the Middle East harms Jordan due its location in the middle of four unrest countries, i.e. Israel, Palestine, Lebanon and Iraq. The findings of this research show a significant influence

Keywords: Jordan, tourism, marketing, travel, image, branding

Research Title: Sampled Data and Space Vector Technique for Static VAR Compensation

Author: Jasim Abdullah Ghaeb, Published Year: 2016

13th International Multi-Conference on Systems, Signals & Devices, Leipzig, Germany.

Faculty: Engineering and Technology

Abstract: This paper presents a new method named Sampled Data and Space Vector Technique (SDSV) to control the three-phase voltages subjected to load changes. The proposed SDSV uses the on record and measured three-phase voltages to obtain the reference space vector (SVr) and measured one (SVm), respectively at different samples. The two space vectors SVr and SVm are compared at regular samples of the system sinusoidal cycle, to generate an error. This error is employed to produce the new reactive power of compensator in a small period of time rather than waiting for a complete system sinusoidal cycle, thereby allowing a quick and an efficient Volt- Ampere Reactive (VAR) control for the three-phase load voltages.

Keywords: Space Vector Modulation; Reactive Power Compensation; Thyristor-Controlled-Reactor; Space Vector; Three-Phase Load Control.

Research Title: Fast correction of voltage unbalance factor in three-phase power system using neural network

Author: Jasim Abdullah Ghaeb, Published Year: 2018

2018 11th International Symposium on Mechatronics and its Applications (ISMA), Sjarjah, UAE, United Arab Emirates

Faculty: Engineering and Technology

Abstract: The voltage unbalance at the load terminal of three-phase electric power system is discussed. The aim of this work is to solve the problem of voltage unbalance accurately and quickly by using the Neural Network Control (NNC). In this paper, the Aqaba-Qatrana-South Amman (AQSA) power system is considered and modelled as a real case study. The three RMS-Load Voltages (3RMSLV) and the Voltage Unbalance Factor (VUF) for different unbalance conditions are collected. In addition, the corresponding firing angles (FATCR) required to drive the Thyristor-Controlled-Reactor (TCR) compensator for balanced condition are determined. These data are used to train, validate, and test the NNC. The NNC training depends on the fact that each unbalance condition has its own 3RMSLV and VUF and needs a unique set of FATCR for getting back the balance condition. Several test cases were discussed to validate the capability of the proposed method in solving the voltage unbalance problem.

Keywords: Power Quality, Neutral Network, Reactive Compensation, TCR.

Research Title: Enhancing the Response of Thyristor-Controlled- Reactor Using Neural Network

Author: Jasim Abdullah Ghaeb, Published Year: 2019

International Transactions on Electrical Energy Systems, Wiley, doi.org/10.1002/2050

Faculty: Engineering and Technology

Abstract: In this paper, Neural Network controller is proposed to retrieve the voltage balancing conditions in three-phase power systems. The Neural Network is suggested to calculate the required set of firing angles for the Thyristor-Controlled-Reactor accurately to balance the three load voltages quickly. The proposed controller is fed by different parameters within different feeding techniques, namely, RMS values of the three load voltages, RMS value of the space vector signal calculated from the three load voltages, and the RMS values of both the three load voltages and their associated space vector. The intentions of the proposed techniques are to combine between reducing the number of measured parameters and providing the controller with qualitative data about system status. The influence of the measured parameters on the Neural Network performance is examined by calculating the regression coefficients through several test cases. Accordingly, only the effective parameters are utilized to reduce the Neural Network complexity and to enhance the controller response time. Additionally, the calculations of the controller input parameters are made in terms of space vector cycle, which is half of system sinusoidal cycle. Consequently, the calculation time is reduced significantly. The Aqaba-Qatrana-South Amman power system is considered and modelled as a real case study. In addition, several test cases have been conducted to test and validate the ability of the proposed Neural Network Controller in retrieving the voltage balance conditions precisely and quickly. The results have revealed the ability of the proposed Neural Network controller to calculate the firing angles quickly within 10 ms and achieve very low Voltage Unbalance Factor.

Keywords: Reactive Power Control; Thyristor-Controlled-Reactor; Power Quality; Neural Network.

Research Title: Current Situation and Future Trends

Author: Munzer Ebaid, Published Year: 2011

Int. J. on Recent Trends in Engineering and Technology, 6

Faculty: Engineering and Technology

Abstract: This paper presents the current energy and power situation in Jordan and the possible future options in terms of energy and power mix and the potentials, trends, and various scenarios to be adopted in the electrical power sector.

Keywords: energy and power, wind energy, solar energy, biomass, hydropower, geothermal, oilshale.

Research Title: The Effect of Multiple Conical Shockwaves at the Engine Intake on the Performance of a Single Mode Ram Jet

Author: Munzer Ebaid, Published Year: 2013

I. Mech. E., Journal of Aerospace Engineering, Part G, 228

Faculty: Engineering and Technology

Abstract: Supersonic single-mode ramjet performance was analyzed using a prescribed two-dimensional conical shock wave in axisymmetric supersonic flow. The ramjet under consideration for the analysis consists of a mixed compression intake, a cylindrical combustion chamber and a supersonic constant convergent–divergent nozzle. A computer program was developed to carry out the analysis based on the formation of multiple conical shock waves at the engine intake at different flight Mach numbers and different altitudes in the range of 1.5–4 Mach and 9000–18,000 m, respectively. Accordingly, a supersonic convergent–divergent nozzle was designed and consequently, the area ratios along the ramjet were calculated to find the correct dimensions for the thrust required. The analysis of the multi-shock system showed that for a given number of conical shocks and Mach numbers, the thrust decreases as the altitude increases. Also, the thrust increases at higher Mach numbers and higher number of conical shocks regardless of the altitude. Furthermore, for M>2.5, and at number of conical shocks greater than 2, thrust stays constant. The flow rate and the pressure after combustion showed similar trends as the thrust. The multi-shock system of the intake system proposed showed that a limit of a three conical shocks were sufficient for a reasonable pressure recovery for a M>2, while for a M<2, a single normal shock wave could be sufficient for different altitudes. Also, pressure recovery is unaffected by the altitude for the same Mach number and increases with lower Mach numbers. Moreover, the increase of number of conical shocks is limited to 3 where no further increase in pressure recovery could be indicated.

Keywords: ram jet, combustion, conical shock, intake, Mach number, flight altitude

Research Title: A Unified Approach for Designing a Photovoltaic Solar System for the Underground Water Pumping Well-34 at Disi Aquifer

Author: Munzer Ebaid, Published Year: 2013

Energy Conversion & Management, 75

Faculty: Engineering and Technology

Abstract: This paper aims to present a detailed design of a standalone photovoltaic system used to power continuously a submersible water pump from a selected well, (Well-34 of a current static water level, SWL=147.3 m), out of 55 production wells located at the Disi aquifer, where each of these wells should have a continuously-operating water flow rate of 80 liters/sec (288 m3/hour) according to the Disi project specifications. Initially, solar irradiation calculations on horizontal and tilted surfaces were carried out to identify the potential of solar energy available in kWh/m2 /day in the Disi aquifer. Then, a system design approach based on the worst month of the year (December) was carried out to choose and size the components of photovoltaic system that is required to operate the submersible pump over the 25-year operation period. The system sizing implies defining the number and type of solar panels required to capture the available solar energy, the capacity and number of batteries, inverter rating, cable sizing, charge controller numbers and rating to ensure the maximum reliability of the system. Furthermore, beyond the design conditions of the worst month (December), extra energy can be produced by the PV system during the rest of the year time, which can be used for many purposes. Also, the design process considers the problem of dust accumulation on PV surfaces and this can be dealt with by periodic cleaning.

Keywords: Photovoltaic panel, batteries, charge controller, inverter, solar irradiation, motor pump.

Research Title: A comprehensive study of photovoltaic power system application for the underground water well pumping at Disi area

Author: Munzer Ebaid, Published Year: 2013

Australian Journal of Basic and Applied sciences, 7

Faculty: Engineering and Technology

Abstract: The main purpose of this study was to investigate the possible use of solar photovoltaic system to power underground water well pumps, which are intended to be used at the Disi Water Conveyance Mega Project in south of Jordan. The work in this paper is divided into four parts: Firstly, an overview of the Disi area was studied and it was found that temperatures ranged between 43°-22°C, wind speed 5.6-9.1 m/s and a total of number sunny days reaching 330 days/year. These values formed ideal conditions for harvesting solar energy. Secondly, Irradiation levels were calculated (Pyranometer was not available on site) and found ranging between 5.5-8.7 kWh/m2/day. This case prevails throughout more than 330 days/year and with around 10-12 shinning hours/day. These values formed an ideal opportunity to construct a photovoltaic solar system. In addition to that, the method of the worst month of radiation and the peak sun hours were studied and analyzed. Thirdly, for this study purposes, system flow and head requirements of the selected four wells are to be determined, and finally the complete system was designed starting with the determination of water pumping requirements (continuous flow rate of 80 liters/sec per well) and then water drawdown effect on the required motor power was investigated throughout the 25-years of the study period. After that, the main photovoltaic PV components’ sizing and selection were conducted. This includes the PV panels, batteries, inverter, charge controllers and cables. The results of this study showed that application of solar energy in Disi area for underground water pumping system is practically and theoretically applicable.

Keywords: Photovoltaic panel; Irradiation levels; batteries; inverter; charge controller