ADU Repository
This digital repository preserves and enables easy and open access to all research publications produced in the university.
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Influence of tensile strength on toppling failure in centrifuge tests
(Pergamon, 2010-09)In toppling of rock slopes, thin slabs of rock displace out of the slope, eventually forming a rupture surface. This toppling process involves slip between the thin slabs and tensile rupture across the slabs. A numerical ... -
Institutions, development and energy constraints
(Elsevier, 2018-01)Micro survey data is used to explore the impact of firm-specific characteristics on firms' access to energy in 138 developing countries. The results show that firm-specific characteristics (age, size, sector of activity, ... -
Efficient end-to-end authentication protocol for wearable health monitoring systems
(ScienceDirect, 2017-10)Wearable health monitoring systems (WHMSs) will play an increasingly important role in future e-healthcare and enable smart and ubiquitous healthcare services. Given its sensitivity, the health data should be protected ... -
A lightweight message authentication scheme for smart grid communications in power sector
(ScienceDirect, 2016-05)The Internet of Things (IoT) has plenty of applications including Smart Grid (SG). IoT enables smooth and efficient utilization of SG. It is assumed as the prevalent illustration of IoT at the moment. IP-based communication ... -
Sixth generation (6G) wireless networks: Vision, research activities, challenges and potential solutions
(MDPI, 2020-04)The standardization activities of the fifth generation communications are clearly over and deployment has commenced globally. To sustain the competitive edge of wireless networks, industrial and academia synergy have begun ... -
An elliptic curve cryptography based lightweight authentication scheme for smart grid communication
(ScienceDirect, 2018-04)An evolved grid system, Smart Grid, enables appropriate adjustments in the amount of electricity generation by providing the capability to monitor the consumption behavior of customers. This advance grid system can help ... -
An Improved Hybrid Recommender System by Combining Predictions
(IEEE, 2011-03)Recommender systems are gaining a great importance with the emergence of E-commerce and business on the internet. These recommender systems help users in making decision by suggesting products and services that satisfy the ... -
A Frequent Pattern Mining Approach for ADLs Recognition in Smart Environments
(IEEE, 2011-03)This paper presents an approach for recognition of Activities of Daily Living (ADLs) in smart environments. Our approach is based on the frequent pattern mining principle to extract frequent patterns in the datasets collected ... -
A standard ontology for smart spaces
(Inderscience Publishers, 2010-01)This paper presents a universal ontology for smart environments aiming to overcome the limitations of the existing ontologies. We enrich our ontology by adding new environmental aspects such as the referentiality and ... -
Simulation of a 10 kW Photovoltaic system in areas with high solar irradiation
(2011)This study investigates the design and the simulation of a 10 kW photovoltaic (PV) system in areas of high solar irradiation. The importance of this study is to explore the feasibility of connecting the PV system with a ... -
Performance of photovoltaic cells in photovoltaic thermal (PVT) modules
(The Institution of Engineering and Technology, 2016)Integrating cooling systems with photovoltaic (PV) modules represents a very important aspect of keeping modules within acceptable operating temperatures. The objective of this study is to analyse the performance of each ... -
Design and Economic Evaluation of Electrification of Small Villages in Rural Area in Yemen Using Stand-Alone PV System
(IJRER, 2016-03)The photovoltaic (PV) technology potential for Yemen is relatively high, based on this fact, there are many isolated and remote locations located far away from the electrical national grid and cannot be integrated in the ... -
Investigation of temperature effects in efficiency improvement of non-uniformly cooled photovoltaic cells
(Research Gate, 2013)This study investigates the performance of photovoltaic (PV) modules with respect to temperature and proposes pipe layouts enabling efficient cooling. The operating temperatures of the PV cells are not equal since the fluid ... -
Bending analysis of the multi-phase nanocomposite reinforced circular plate via 3D-elasticity theory
(Korea science, 2021)In this article bending response of multi-phase nanocomposite (MPC) filled by circular plates (MPCCP) in the framework of the three-dimensional elasticity model under bi-directional initially stressed (BDIS) resting on ... -
Stress in Rock Slopes: Non-persistent Versus Persistent Joint Model
(Springer, Cham, 2019-11)In rock slopes prone to topple, mechanical, physical or chemical weathering might degrade the rock mass properties and compromise the stability of that rock slopes. However, the nature of the joints distribution and the ... -
Numerical Modeling of Independent versus Dependent Tensile-Frictional Strength Behavior of Synthetic Rocks with Non-continuous joints
(Research square, 2021-06)The failure mechanisms of non-continuous jointed rocks under compression loading is of great importance for the rock mechanics community; it plays an important role in understanding the fracturing pattern, the type of the ... -
Sand Shear Strength as Function of Geofiber Stabilization
(IEEE, 2022-02)In order to use Abu Dhabi sand for pavement base courses, subbase courses, subgrades, and as a foundation soil, it must possess special shear strength characteristics. The stabilization of this kind of sand is a major ... -
A Generalized Regression Neural Network Model to Predict CFA Piles Performance Using Borehole and Static Load Test Data
(Springer Berlin Heidelberg, 2022-06)This research aims to predict the downward displacement of piles as the axial loading increases and decreases to form the pile static load curves. The generalized regression neural network (GRNN) is used to predict the ... -
Empirical and numerical study of the static lateral response of socketed pile in Dubai, UAE
(Thomas Telford Ltd, 2022-08)In geotechnical engineering practice, it is often a challenging task to select a suitable method for the calculation of the lateral load capacity of piles. In Dubai, UAE piles are predominantly rock socketed with top layers ... -
Amount of fracturing inside rock slopes due to strength variation
(CRC Press, 2020)In rock slopes prone to topple, mechanical, physical, and/or chemical weathering might degrade the rock mass properties and compromise the stability of that rock slope. This paper investigates the effect of tensile ... -
Experimental observations on the effect of thermal treatment on the crack speed and mode I and II fracture toughness in brittle and ductile rocks
(Elsevier, 2022-10)The mechanical properties of rocks are greatly affected by thermal treatment, as this treatment can either improve or worsen these properties depending on the mineralogical composition. Therefore, the effect of thermal ... -
The proposed use of generalized regression neural network to predict the entire static load test
(Springer, Cham, 2018-11)In the UAE, continuous flight auger piles (CFA) are the most commonly used type of foundations to construct high rise buildings, bridges, and other heavy structures due to the high groundwater table and the weak soil/rock ... -
Predicting the entire static load test by using generalized regression neural network in the United Arab Emirates
(Springer, Singapore, 2019)In the UAE, continuous flight auger piles (CFA) are the most commonly used type of foundations. To minimize the risk of failure, of these CFA piles, mandatory expensive field tests need to be performed and the most important ... -
Factors Affecting Compressive Strength Development in Alkali-activated Slag Concrete
(IOP Publishing, 2019-09)Studies show that the production and use of ordinary Portland cement (OPC) is responsible for more than 5% of the global CO2 emission. Alkali-activated slag (AAS) has been studied for decades as potential alternative to ... -
Numerical assessment of rectangular tunnels configurations using support vector machine (SVM) and gene expression programming (GEP)
(Springer London, 2021-07)Rectangular tunnel boring machine (TBM) is applied for the tunnels’ excavation including a cross section of circular and rectangular shape within the various rocks and soil strata. Excessive structural forces, which is ... -
Optimal tuning of PID controllers for FOPTD, SOPTD and SOPTD with lead processes
(Elsevier, 2006-12)This paper presents the synthesis and analysis of optimal tuning of proportional integral derivative (PID) parameters for different process systems: first order plus time delay (FOPTD), second order plus time delay (SOPTD) ... -
Stability of a rock slope susceptible to seasonal movements
(ResearchGate, 2014)A rock slope, known as the Checkerboard Creek slope located in British Columbia, Canada, is moving under the effect of seasonal temperature changes. Freezing and thawing processes are causing the rock to move at rate ... -
Smart framework for predicting drilled shaft capacity based on data mining techniques and GIS data
(IOS Press, 2015)Predicting accurately deep foundation capacity is one of the most difficult problems in Geotechnical Engineering. In Abu Dhabi, the most commonly used deep foundation underneath our buildings are drilled shafts. This paper ... -
Towards building a neural network model for predicting pile static load test curves
(EDP Sciences, 2018-02)In the United Arab Emirates, Continuous Flight Auger piles are the most widely used type of deep foundation. To test the pile behaviour, the Static Load Test is routinely conducted in the field by increasing the dead load ... -
EFFECT OF STRENGTH PROPERTIES ON DISPLACEMENT MAGNITUDE AND FRACTURING AMOUNT INSIDE A LARGE OPEN PIT PRONE TO TOPPLING
(ResearchGate, 2019)The study has presented a sensitivity analysis of a rock mass prone to toppling due to the variation of the strength parameters. The data from the Lornex pit at the Highland Valley Copper Mine, Canada, was used to calibrate ... -
A Comparative Analysis of Hybrid Computational Models Constructed with Swarm Intelligence Algorithms for Estimating Soil Compression Index
(Springer Netherlands, 2022-05)The determination of the compression index (Cc) of clay through oedometer tests is time-consuming and expensive. To replace the practice of conducting laboratory oedometer tests, this study presents a comparative analysis ... -
Metamaterials with giant and tailorable nonreciprocal elastic moduli
(American Physical Society, 2020-07)Natural nonlinear materials, e.g., biological materials and polymers, are mechanically weak. It has been a major challenge to develop a nonlinear material with potential mechanical applications. Here, we develop a nonlinear ... -
Numerical modeling of buckling rock movement
(Research Gate, 2011)Different modes of rock slope movement have been observed in the field on both anaclinal and cataclinal slopes in sedimentary rocks. In such layered slopes, the orientation of the main set of discontinuities relative to ... -
State of the art, reconstruction of damaged zones: transitory stresses effect and factors controlling rock mass stability
(ResearchGate, 2018)For the last three decades, many countries in the Middle East have been bombarded by wars. In these damaged zones, removing of destruction debris and the effect of the direct impact of blasts might trigger rock mass ... -
Predicting the pile static load test using backpropagation neural network and generalized regression neural network–a comparative study
(Taylor & Francis, 2021-08)In this paper, two neural network models; the Back Propagation Network, and the Generalized Regression Neural Network were built to predict the downward displacement of the entire static load test for Continuous Flight ... -
Modeling yield propagation of jointed synthetic rock
(OnePetro, 2016-08)To investigate the failure of non-continuous jointed rocks under compression loading, many researchers have performed uniaxial and biaxial compression tests. In this paper, I simulated numerically the behavior of artificial ... -
Novel integration of extreme learning machine and improved Harris hawks optimization with particle swarm optimization-based mutation for predicting soil consolidation parameter
(Elsevier, 2022)The study proposes an improved Harris hawks optimization (IHHO) algorithm by integrating the standard Harris hawks optimization (HHO) algorithm and mutation-based search mechanism for developing a high-performance machine ... -
Progressive failure mechanisms in a slope prone to toppling
(Research Gate, 2011-09)The Checkerboard Creek rock slope is located upstream of the Revelstoke hydroelectric dam, British Columbia, Canada. Annual surface movements of approximately 10 mm have been recorded over the past 25 years. The movement ... -
Modeling of rocks under direct shear loading by using discrete element method
(Research Gate, 2012-01)The geometrical properties are of great concern in characterizing a rock mass. The blocks in a rock mass are formed by flaws with different patterns formed in nature under different geological circumstances. One of the ... -
Rock slopes processes and recommended methods for analysis
(International Journal of GEOMATE, 2016)The stability of rock slopes is of great concern in many engineering projects, for example; road cuts, foundations, retaining walls, and dam excavation. Generally, rock slopes susceptible to instability could be divided ... -
A discrete element damage model for rock slopes
(OnePetro, 2007)A modelling approach for rock slopes is proposed that is based on discrete element formulation. This model allows damage to occur and propagate within intact rock blocks and along discontinuous joint sets. The model uses ... -
The effect of tensile strength on the stability of rock slopes
(ERA, 2009)The stability of a rock slope is generally considered a function of the shear strength of the rupture surface. In natural slopes the rupture surfaces are often discontinuous and may be composed of fractures and joints ... -
Fracture mechanisms of offset rock joints-A laboratory investigation
(Kluwer Academic Publishers, 2004-12)To study the failure mechanisms of joints and rock bridges in jointed rock masses a series of uniaxial compression tests were performed on specimens made of rock-like material. Specimens of size 63.5 cm × 27.9 cm × 20.3 cm, ... -
A note on capital utilization and international trade
(Oxford University Press, 2017-05)This article integrates the analysis of durable capital utilization in the theory of international trade. Variations in capital utilization are analytically accounted for in the form of shift work. Accordingly, producers ... -
Foreign ownership and the financing constraints of firms operating in a multinational environment
(North-Holland, 2022-07)We examine the effects of foreign ownership as well as other firm-specific variables on enterprises' access to credit in 135 underdeveloped nations using micro survey data from the World Bank's Enterprise Surveys. The ... -
Dealing with dimension reduction in financial panel data
(University of Pavia, Department of Economics and Management, 2022-06)In this paper, we present a fully data-driven statistical approach to building a syn thetic index based on intrinsic information of the considered ecosystem, namely the financial one. Among the several methods made available ... -
Performance Measurement and Cash Distribution in Real Estate Private Equity Financing
(El Khazindar Business Research and Case Center, The American University in Cairo School of Business, 2020)This case deals with the challenges of corporate decision-making under conditions of uncertainty in the real estate sector in Egypt. The board of a real estate company must make decisions on new project expansion and ... -
Correction to: Are Happier Nations More Responsible? Examining the Link Between Happiness and Sustainability
(Springer Netherlands, 2021-11)The paper uses aggregate data from 152 countries to analyze the association between happiness and sustainability. Our paper provides new evidence on happiness and sustainability. Taking a psychological approach, happiness ... -
Financial Development, Institutions, Gender and Entrepreneurship in the United Arab Emirates
(AESS, 2021-09)The paper explores the role of financial development on entrepreneurship in the United Arab Emirates by using data on new business registration and new business density over the period 2006-2018. The country is undergoing ... -
A data-driven approach to measuring financial soundness throughout the world
(University of Pavia, Department of Economics and Management, 2021-02)We use a fully data-driven approach and information provided by the IMF’s finan cial soundness indicators to measure the soundness of a country’s financial system around the world. Given the nature of the measurement ...
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