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Articles 1 - 30 of 88
Full-Text Articles in Engineering
Sequential Damage Study Induced In Fiber Reinforced Composites By Shear And Tensile Stress Using A Newly Developed Arcan Fixture, Israr Ud Din, Shanshan Tu, Pei Hao, Stéphane Panier, Kamran Ahmed Khan, Rehan Umer, Syed Z. H. Shah, Gérald Franz, Muhammad Aamir
Sequential Damage Study Induced In Fiber Reinforced Composites By Shear And Tensile Stress Using A Newly Developed Arcan Fixture, Israr Ud Din, Shanshan Tu, Pei Hao, Stéphane Panier, Kamran Ahmed Khan, Rehan Umer, Syed Z. H. Shah, Gérald Franz, Muhammad Aamir
Research outputs 2014 to 2021
This work presents the application of both uniaxial and bi-axial in-plane loads to unidirectional carbon fiber reinforced polymer laminates using a newly developed Arcan fixture, which is a reliable experimental set-up to obtain a uniform shear stress field in a butterfly specimen. The set-up can be used for both damage model validation and parameters identification at various fiber orientations while using the same specimens. A sequential damage study was completed to highlight the influence of diffused damage induced in pure shear on the fiber direction tensile behavior of the laminate. This was accomplished by applying load on the specimens in …
Large Eddy Simulation Of Turbidity Currents In A Narrow Channel With Different Obstacle Configurations, Danial Goodarzi, Kaveh Sookhak Lari, Ehsan Khavasi, Soroush Abolfathi
Large Eddy Simulation Of Turbidity Currents In A Narrow Channel With Different Obstacle Configurations, Danial Goodarzi, Kaveh Sookhak Lari, Ehsan Khavasi, Soroush Abolfathi
Research outputs 2014 to 2021
© 2020, The Author(s). Turbidity currents are frequently observed in natural and man-made environments, with the potential of adversely impacting the performance and functionality of hydraulic structures through sedimentation and reduction in storage capacity and an increased erosion. Construction of obstacles upstream of hydraulic structures is a common method of tackling adverse effects of turbidity currents. This paper numerically investigates the impacts of obstacle’s height and geometrical shape on the settling of sediments and hydrodynamics of turbidity currents in a narrow channel. A robust numerical model based on LES method was developed and successfully validated against physical modelling measurements. This …
Hydrogen Wettability Of Sandstone Reservoirs, Stefan Iglauer, Muhammad Ali, Alireza Keshavarz
Hydrogen Wettability Of Sandstone Reservoirs, Stefan Iglauer, Muhammad Ali, Alireza Keshavarz
Research Datasets
Data set include the data for contact angle data as a function of pressure, temperature and stearic acid concentration in H2. One exemplary figure is also provided for contact angle measurement in H2 atmosphere.
Experimental Investigation Of The Effect Of Vitagnus Plant Extract On Enhanced Oil Recovery Process Using Interfacial Tension (Ift) Reduction And Wettability Alteration Mechanisms, Seyed Ramin Mousavi Dashtaki, Jagar A. Ali, Abbas Khaksar Manshad, Iman Nowrouzi, Amir H. Mohammadi, Alireza Keshavarz
Experimental Investigation Of The Effect Of Vitagnus Plant Extract On Enhanced Oil Recovery Process Using Interfacial Tension (Ift) Reduction And Wettability Alteration Mechanisms, Seyed Ramin Mousavi Dashtaki, Jagar A. Ali, Abbas Khaksar Manshad, Iman Nowrouzi, Amir H. Mohammadi, Alireza Keshavarz
Research outputs 2014 to 2021
© 2020, The Author(s). Surfactant flooding is a chemical enhanced oil recovery (cEOR) process wherein anionic, cationic, non-ionic, and amphoteric surfactants are injected into oil reservoirs to produce more hydrocarbon. These chemical and industrial agents might cause some economic and environmental challenges. Recently, injection of natural surfactants, as new environmentally friendly EOR agents, for improving oil recovery has been proposed by researchers. In this study, the extract of Vitagnus, a natural surfactant, was used to minimize the interfacial tension (IFT) and alter the rock wettability towards the strong water-wet system, thereby improving the oil recovery from the carbonate rock The …
Recent Development In Beta Titanium Alloys For Biomedical Applications, Liang Yu Chen, Yu Wei Cui, Lai-Chang Zhang
Recent Development In Beta Titanium Alloys For Biomedical Applications, Liang Yu Chen, Yu Wei Cui, Lai-Chang Zhang
Research outputs 2014 to 2021
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. β-type titanium (Ti) alloys have attracted a lot of attention as novel biomedical materials in the past decades due to their low elastic moduli and good biocompatibility. This article provides a broad and extensive review of β-type Ti alloys in terms of alloy design, preparation methods, mechanical properties, corrosion behavior, and biocompatibility. After briefly introducing the development of Ti and Ti alloys for biomedical applications, this article reviews the design of β-type Ti alloys from the perspective of the molybdenum equivalency (Moeq) method and DV-Xα molecular orbital method. Based on these …
Tensile And Superelastic Behaviors Of Ti-35nb-2ta-3zr With Gradient Structure, Liqiang Wang, Yingchen Wang, Wei Huang, Jia Liu, Yujin Tang, Ling Zhang, Yuanfei Fu, Lai-Chang Zhang, Weijie Lu
Tensile And Superelastic Behaviors Of Ti-35nb-2ta-3zr With Gradient Structure, Liqiang Wang, Yingchen Wang, Wei Huang, Jia Liu, Yujin Tang, Ling Zhang, Yuanfei Fu, Lai-Chang Zhang, Weijie Lu
Research outputs 2014 to 2021
© 2020 The Authors We investigated the tensile and superelastic behaviors of Ti-35Nb-2Ta-3Zr processed by double-faced friction stir processing that results in a roughly 2 times higher yield strength with an elongation of 37%. The friction stir processed specimens exhibited different superelasticity as loading cycle increased. To assess the strength and deformation of gradient structure, in situ micro compression tests were conducted on stir zone and heat affected zone, revealing higher strength in stir zone and better ductility in heat affected zone. The combination of stir zone and heat affected zone could increase the strength and maintain the ductility of …
Deformation And Toughness Behavior Of Β -Type Titanium Alloys Comprising C15-Type Laves Phase, C. D. Rabadia, Y. J. Liu, S. F. Jawed, L. Q. Wang, H. Sun, L. C. Zhang
Deformation And Toughness Behavior Of Β -Type Titanium Alloys Comprising C15-Type Laves Phase, C. D. Rabadia, Y. J. Liu, S. F. Jawed, L. Q. Wang, H. Sun, L. C. Zhang
Research outputs 2014 to 2021
Laves phases are effective in tailoring the mechanical properties of alloys used for structural engineering applications. Therefore, it is an emerging research significance to investigate the deformation features of alloys comprising a Laves phase. In this work, the Ti–33Zr–xFe–yCr (x = 5, 7 wt% and y = 2, 4 wt%) alloys were designed in such a way that a Laves phase would form in the investigated Ti–33Zr–xFe–yCr alloys and later, cast by cold crucible levitation melting. All the as-cast alloys exhibit a face-centered cubic C15-type Laves phase along with a dominant β phase. The volume fraction of C15 Laves phase …
High Mb Solution Degradation Efficiency Of Fesibzr Amorphous Ribbon With Surface Tunnels, Qi Chen, Zhicheng Yan, Hao Zhang, Lai-Chang Zhang, Haijian Ma, Wenlong Wang, Weimin Wang
High Mb Solution Degradation Efficiency Of Fesibzr Amorphous Ribbon With Surface Tunnels, Qi Chen, Zhicheng Yan, Hao Zhang, Lai-Chang Zhang, Haijian Ma, Wenlong Wang, Weimin Wang
Research outputs 2014 to 2021
© 2020 by the authors. The as spun amorphous (Fe78Si9B13)99.5Zr0.5 (Zr0.5) and (Fe78Si9B13)99Zr1 (Zr1) ribbons having a Fenton-like reaction are proved to bear a good degradation performance in organic dye wastewater treatment for the first time by evaluating their degradation efficiency in methylene blue (MB) solution. Compared to the widely studied (Fe78Si9B13)100Zr0 (Zr0) amorphous ribbon for degradation, with increasing cZr (Zr atomic content), the as-spun Zr0, Zr0.5 and Zr1 amorphous ribbons have gradually increased degradation rate of MB solution. According to δc (characteristic distance) of as-spun Zr0, Zr0.5 and Zr1 ribbons, the free volume in Zr1 ribbon is higher Zr0 …
A Step Forward Towards Advanced And Self-Sustainable Greenhouse Agriculture, Mohammad Nur E Alam, Mikhail Vasiliev, Jacqualine Anne Thomas
A Step Forward Towards Advanced And Self-Sustainable Greenhouse Agriculture, Mohammad Nur E Alam, Mikhail Vasiliev, Jacqualine Anne Thomas
Research outputs 2014 to 2021
It is now time for the future-generation and advanced greenhouse design practices to address a range of issues, from the energy and land use efficiency to providing plant-optimised growth techniques. In this Encyclopaedia record, we report on the practical development of spectrally selective and specialist-type advanced metal-dielectric thin-film filters that produce the optimized illumination spectrum when exposed to natural sunlight that can help maximize the biomass productivity of coated-glass greenhouse crops. Our experimental case study has been performed for the lettuce species, Lactuca sativa, L., yielding promising results.
Light Reflection Loss Reduction By Nano-Structured Gratings For Highly Efficient Next-Generation Gaas Solar Cells, Narottam Das, Devanandh Chandrasekar, Mohammad Nur-E-Alam, M. K.Masud Khan
Light Reflection Loss Reduction By Nano-Structured Gratings For Highly Efficient Next-Generation Gaas Solar Cells, Narottam Das, Devanandh Chandrasekar, Mohammad Nur-E-Alam, M. K.Masud Khan
Research outputs 2014 to 2021
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This paper mainly focuses on increasing the conversion efficiency of GaAs solar cells by reducing the light reflection losses. The design of nano-structured gratings and their light trapping performance are modelled and optimised by using the finite-difference time-domain (FDTD) method. The sunlight directly impinges on the solar panel or cells, then a portion of the incident sunlight reflects back to the air from the surface of the panel, thus leading to a reduction in the light absorption capacity of the solar cells. In order to proliferate the light absorption capacity of …
Surface Functionalization Of Biomedical Ti-6al-7nb Alloy By Liquid Metal Dealloying, Ilya Vladimirovich Okulov, Soo Hyun Joo, Artem Vladimirovich Okulov, Alexey Sergeevich Volegov, Bérengère Luthringer, Regine Willumeit-Römer, Lai-Chang Zhang, Lutz Mädler, Jürgen Eckert, Hidemi Kato
Surface Functionalization Of Biomedical Ti-6al-7nb Alloy By Liquid Metal Dealloying, Ilya Vladimirovich Okulov, Soo Hyun Joo, Artem Vladimirovich Okulov, Alexey Sergeevich Volegov, Bérengère Luthringer, Regine Willumeit-Römer, Lai-Chang Zhang, Lutz Mädler, Jürgen Eckert, Hidemi Kato
Research outputs 2014 to 2021
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Surface functionalization is an effective approach to change the surface properties of a material to achieve a specific goal such as improving the biocompatibility of the material. Here, the surface of the commercial biomedical Ti-6Al-7Nb alloy was functionalized through synthesizing of a porous surface layer by liquid metal dealloying (LMD). During LMD, the Ti-6Al-7Nb alloy is immersed in liquid magnesium (Mg) and both materials react with each other. Particularly, aluminum (Al) is selectively dissolved from the Ti-6Al-7Nb alloy into liquid Mg while titanium (Ti) and niobium (Nb) diffuse along the metal/liquid …
Atomically Thin Heavy-Metal-Free Znte Nanoplatelets Formed From Magic-Size Nanoclusters, Fei Wang, Minyi Zhang, Wei Chen, Shaghraf Javaid, Heng Yang, Sheng Wang, Xuyong Yang, Lai-Chang Zhang, Mark A. Buntine, Chunsen Li, Guohua Jia
Atomically Thin Heavy-Metal-Free Znte Nanoplatelets Formed From Magic-Size Nanoclusters, Fei Wang, Minyi Zhang, Wei Chen, Shaghraf Javaid, Heng Yang, Sheng Wang, Xuyong Yang, Lai-Chang Zhang, Mark A. Buntine, Chunsen Li, Guohua Jia
Research outputs 2014 to 2021
© The Royal Society of Chemistry. Atomically thin colloidal quasi-two-dimensional (2D) semiconductor nanoplatelets (NPLs) have attracted tremendous attention due to their excellent properties and stimulating applications. Although some advances have been achieved in Cd- and Pb-based semiconductor NPLs, research into heavy-metal-free NPLs has been reported less due to the difficulties in the synthesis and the knowledge gap in the understanding of the growth mechanism. Herein wurtzite ZnTe NPLs with an atomic thickness of about 1.5 nm have been successfully synthesized by using Superhydride (LiEt3BH) reduced tributylphosphine-Te (TBP-Te) as the tellurium precursor. Mechanistic studies, both experimentally and theoretically, elucidate the transformation …
Hybrid Nanocellulose-Copper (Ii) Oxide As Engine Oil Additives For Tribological Behavior Improvement, Sakinah Hisham, Kumaran Kadirgama, Hussein A. Mohammed, Amit Kumar, Devarajan Ramasamy, Mahendran Samykano, Saidur Rahman
Hybrid Nanocellulose-Copper (Ii) Oxide As Engine Oil Additives For Tribological Behavior Improvement, Sakinah Hisham, Kumaran Kadirgama, Hussein A. Mohammed, Amit Kumar, Devarajan Ramasamy, Mahendran Samykano, Saidur Rahman
Research outputs 2014 to 2021
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Friction and wear are the main factors in the failure of the piston in automobile engines. The objective of this work was to improve the tribological behaviour and lubricant properties using hybrid Cellulose Nanocrystal (CNC) and Copper (II) oxide nanoparticles blended with SAE 40 as a base fluid. The two-step method was used in the hybrid nanofluid preparation. Three different concentrations were prepared in a range of 0.1% to …
Nanomaterial-Based Drilling Fluids For Exploitation Of Unconventional Reservoirs: A Review, Muhammad Ali, Husna Hayati Jarni, Adnan Aftab, Abdul Razak Ismail, Noori M.Cata Saady, Muhammad Faraz Sahito, Alireza Keshavarz, Stefan Iglauer, Mohammad Sarmadivaleh
Nanomaterial-Based Drilling Fluids For Exploitation Of Unconventional Reservoirs: A Review, Muhammad Ali, Husna Hayati Jarni, Adnan Aftab, Abdul Razak Ismail, Noori M.Cata Saady, Muhammad Faraz Sahito, Alireza Keshavarz, Stefan Iglauer, Mohammad Sarmadivaleh
Research outputs 2014 to 2021
© 2020 by the authors. The world's energy demand is steadily increasing where it has now become difficult for conventional hydrocarbon reservoir to meet levels of demand. Therefore, oil and gas companies are seeking novel ways to exploit and unlock the potential of unconventional resources. These resources include tight gas reservoirs, tight sandstone oil, oil and gas shales reservoirs, and high pressure high temperature (HPHT) wells. Drilling of HPHT wells and shale reservoirs has become more widespread in the global petroleum and natural gas industry. There is a current need to extend robust techniques beyond costly drilling and completion jobs, …
Investigation The Nonlinear Optical Properties Of Silver Nanoparticles Using Femtosecond Laser, Al Aboud Wahed Al-Isawi, M. H. Mezher, Ali Z. Ghazi Zahid, Heba Abdul Jaleel Alasady, S. T. Yousif, Maitham Al-Alyawy, W. Y. Chong, R. Zakaria, Sahbudin Shaari, Ali H. Mezher, Hala Musawy, Saad H. Al-Isawi, Afyaa H. Muzher, Jaber K. Taher, A. R. Jaber, A. Q. Latef, B. S. Saleh
Investigation The Nonlinear Optical Properties Of Silver Nanoparticles Using Femtosecond Laser, Al Aboud Wahed Al-Isawi, M. H. Mezher, Ali Z. Ghazi Zahid, Heba Abdul Jaleel Alasady, S. T. Yousif, Maitham Al-Alyawy, W. Y. Chong, R. Zakaria, Sahbudin Shaari, Ali H. Mezher, Hala Musawy, Saad H. Al-Isawi, Afyaa H. Muzher, Jaber K. Taher, A. R. Jaber, A. Q. Latef, B. S. Saleh
Research outputs 2014 to 2021
© 2020 Published under licence by IOP Publishing Ltd. In this research, the fabrication of silver nanoparticles and experimental nonlinear response (NLO). The fabrication of the silver nanoparticles has been done using E-Beam evaporation on a glass substrate (Ag-NPs) and investigation of their nonlinear optical response (NLO). The silver nanoparticles was evaluated by optical spectrum (UV-Vis) that shows localized surface Plasmon band at 375 nm. The experiment shows the nonlinear absorption and nonlinear refraction effect of silver nanoparticles, the silver nanoparticles is analysed by Z-Scan technique using a femtoseconds laser with 800 nm wavelength. The result shows the nonlinear absorption …
Thermal Performance Of Hybrid-Inspired Coolant For Radiator Application, F. Benedict, Amit Kumar, K. Kadirgama, Hussein A. Mohammed, D. Ramasamy, M. Samykano, R. Saidur
Thermal Performance Of Hybrid-Inspired Coolant For Radiator Application, F. Benedict, Amit Kumar, K. Kadirgama, Hussein A. Mohammed, D. Ramasamy, M. Samykano, R. Saidur
Research outputs 2014 to 2021
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Due to the increasing demand in industrial application, nanofluids have attracted the considerable attention of researchers in recent decades. The addition of nanocellulose (CNC) with water (W) and ethylene glycol (EG) to a coolant for a radiator application exhibits beneficial properties to improve the efficiency of the radiator. The focus of the present work was to investigate the performance of mono or hybrid metal oxide such as Al2O3 and TiO2 with or without plant base-extracted CNC with varying concentrations as a better heat transfer nanofluid in comparison to distilled water as …
An Experimental Study On Micro-Structural And Geotechnical Characteristics Of Expansive Clay Mixed With Eps Granules, Nitin Tiwari, Neelima Satyam, Sanjay Kumar Shukla
An Experimental Study On Micro-Structural And Geotechnical Characteristics Of Expansive Clay Mixed With Eps Granules, Nitin Tiwari, Neelima Satyam, Sanjay Kumar Shukla
Research outputs 2014 to 2021
© 2020 Pavement structures constructed on the expansive soil subgrade experience a higher upward pressure compared to any other subgrade material. The upward pressure is caused due to high swelling and shrinkage characteristics of expansive clay soil. The present study has investigated and identified the mechanisms by which a remolded expansive soil can be modified to reduce the upward pressure and swelling (heave). To achieve this, a lightweight, environmentally friendly, and high pressure resistive expanded polystyrene (EPS) granules have been used with expansive soil s from three different locations of Madhya Pradesh state, India. The study has been performed to …
Quantitative Prediction Of Fractures In Shale Using The Lithology Combination Index, Zhengchen Zhang, Pingping Li, Yujie Yuan, Kouqi Liu, Jingyu Hao, Huayao Zou
Quantitative Prediction Of Fractures In Shale Using The Lithology Combination Index, Zhengchen Zhang, Pingping Li, Yujie Yuan, Kouqi Liu, Jingyu Hao, Huayao Zou
Research outputs 2014 to 2021
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Fractures, which are related to tectonic activity and lithology, have a significant impact on the storage and production of oil and gas in shales. To analyze the impact of lithological factors on fracture development in shales, we selected the shale formation from the Da’anzhai member of the lower Jurassic shales in a weak tectonic deformation zone in the Sichuan Basin. We defined a lithology combination index (LCI), that is, an attribute quantity value of some length artificially defined by exploring the lithology combination. LCI contains information on shale content at a …
Coal Fracturing Through Liquid Nitrogen Treatment: A Micro-Computed Tomography Study, Hamed Akhondzadeh, Alireza Keshavarz, Faisal Ur Rahman Awan, Ahmed Z. Al-Yaseri, Stefan Iglauer, Maxim Lebedev
Coal Fracturing Through Liquid Nitrogen Treatment: A Micro-Computed Tomography Study, Hamed Akhondzadeh, Alireza Keshavarz, Faisal Ur Rahman Awan, Ahmed Z. Al-Yaseri, Stefan Iglauer, Maxim Lebedev
Research outputs 2014 to 2021
Low permeability of coal has been a constant obstacle to economic production from coalbed methane reservoirs, and liquid nitrogen (LN2) treatment has been investigated as one approach to address this issue. This study examined LN2 fracturing of a bituminous coal at pore-scale through 3D X-ray micro-computed tomography. For this purpose, a cylindrical sample was immersed into LN2 for 60 min. The micro-CT results clearly showed that the rapid freezing of the coal with LN2 generated fracture planes with large apertures originating from the pre-existing cleats in the rock. This treatment also connected original cleats with …
A Novel Approach For Using Silica Nanoparticles In A Proppant Pack To Fixate Coal Fines, Faisal Ur Rahman Awan, Alireza Keshavarz, Hamed Akhondzadeh, Sarmad Al-Anssari, Stefan Iglauer
A Novel Approach For Using Silica Nanoparticles In A Proppant Pack To Fixate Coal Fines, Faisal Ur Rahman Awan, Alireza Keshavarz, Hamed Akhondzadeh, Sarmad Al-Anssari, Stefan Iglauer
Research outputs 2014 to 2021
Hydraulic fracturing operations in coal seam gas reservoirs are highly prone to release coal fines. Coal fines inevitably cause mechanical pump failure and permeability damage as a result of their hydrophobicity, aggregation in the system and pore-throat blockage. One approach to affix these coal fines at their source, and to retard generation, is to introduce a nanoparticle-treated proppant pack. Thus, this research explores coal fines retention (known as adsorption) in a proppant pack using nanoparticles. In the study, the electrolytic environment, pH, flow rate, temperature and pressure were kept constant, while the variables were concentration of silica nanoparticles (0–0.1 wt%) …
Editorial: Structure And Mechanical Properties Of Titanium Alloys And Titanium Matrix Composites (Tmcs), Lechun Xie, Liqiang Wang, Lai-Chang Zhang, Weijie Lu
Editorial: Structure And Mechanical Properties Of Titanium Alloys And Titanium Matrix Composites (Tmcs), Lechun Xie, Liqiang Wang, Lai-Chang Zhang, Weijie Lu
Research outputs 2014 to 2021
No abstract provided.
Imaging Of Membrane Concentration Polarization By Nacl Using 23na Nuclear Magnetic Resonance, Masoumeh Zargar, Ryuta Ujihara, Sarah J. Vogt, Johannes S. Vrouwenvelder, Einar O. Fridjonsson, Michael L. Johns
Imaging Of Membrane Concentration Polarization By Nacl Using 23na Nuclear Magnetic Resonance, Masoumeh Zargar, Ryuta Ujihara, Sarah J. Vogt, Johannes S. Vrouwenvelder, Einar O. Fridjonsson, Michael L. Johns
Research outputs 2014 to 2021
Forward osmosis (FO) and reverse osmosis (RO) membrane processes differ in their driving forces: osmotic pressure versus hydraulic pressure. Concentration polarization (CP) can adversely affect both performance and lifetime in such membrane systems. In order to mitigate against CP, the extent and severity of it need to be predicted more accurately through advanced online monitoring methodologies. Whilst a variety of monitoring techniques have been used to study the CP mechanism, there is still a pressing need to develop and apply non-invasive, in situ techniques able to produce quantitative, spatially resolved measurements of heterogeneous solute concentration in, and adjacent to, the …
Irradiation Induced Elongation Of Fe Nanoparticles Embedded In Silica Films, E. A. Dawi, T. Ommar, R. Ackermann, A. A. Karar
Irradiation Induced Elongation Of Fe Nanoparticles Embedded In Silica Films, E. A. Dawi, T. Ommar, R. Ackermann, A. A. Karar
Research outputs 2014 to 2021
© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Irradiation with swift heavy ions causes the deformation of Ferric nanoparticles in direction of the ion beam. Fe nanoparticles with mean diameter of about 20 nm were prepared by gas flow sputtering and subsequently confined within silica films. Two silica films wherein two different densities of Fe nanoparticles are encapsulated were irradiated with 50 MeV Ag ions with fluences of few 1014 ions.cm−2 at 300 K and normal incidence. Transmission electron microscopy analysis shows that the spherical Fe nanoparticles are deformed into prolate nanorods aligned …
Optimal Sizing Design And Operation Of Electrical And Thermal Energy Storage Systems In Smart Buildings, Ali Baniasadi, Daryoush Habibi, Waleed Al-Saedi, Mohammad A. S. Masoum, Choton K. Das, Navid Mousavi
Optimal Sizing Design And Operation Of Electrical And Thermal Energy Storage Systems In Smart Buildings, Ali Baniasadi, Daryoush Habibi, Waleed Al-Saedi, Mohammad A. S. Masoum, Choton K. Das, Navid Mousavi
Research outputs 2014 to 2021
Photovoltaic (PV) systems in residential buildings require energy storage to enhance their productivity; however, in present technology, battery storage systems (BSSs) are not the most cost-effective solutions. Comparatively, thermal storage systems (TSSs) can provide opportunities to enhance PV self-consumption while reducing life cycle costs. This paper proposes a new framework for optimal sizing design and real-time operation of energy storage systems in a residential building equipped with a PV system, heat pump (HP), thermal and electrical energy storage systems. For simultaneous optimal sizing of BSS and TSS, a particle swarm optimization (PSO) algorithm is applied to minimize daily electricity and …
Influence Of Cr Content On The Microstructure And Mechanical Properties Of Crxfenicu High Entropy Alloys, Hao Wu, Sirui Huang, Chengyan Zhu, Heguo Zhu, Zonghan Xie
Influence Of Cr Content On The Microstructure And Mechanical Properties Of Crxfenicu High Entropy Alloys, Hao Wu, Sirui Huang, Chengyan Zhu, Heguo Zhu, Zonghan Xie
Research outputs 2014 to 2021
© 2020 Chinese Materials Research Society The effect of Cr content on the microstructure and mechanical properties of CrxFeNiCu high entropy alloys (HEAs) was firstly studied by first-principles calculations. The calculated results show that the hardness of the alloys increased with the expense of its plasticity decrease, if the content of Cr in the alloy increased. In order to verify the calculated results, CrxFeNiCu (x = 0.8, 1, 1.5 and 2) high entropy alloys were synthesized by vacuum induction melting in the present study. The results show that as the value of x increased from 0.8 to 2, the crystal …
Comparative And Performative Investigation Of Various Data-Based And Conventional Theoretical Methods For Modelling Heat Pipe Solar Collectors, Abdellah Shafieian, Hossein Parastvand, Mehdi Khiadani
Comparative And Performative Investigation Of Various Data-Based And Conventional Theoretical Methods For Modelling Heat Pipe Solar Collectors, Abdellah Shafieian, Hossein Parastvand, Mehdi Khiadani
Research outputs 2014 to 2021
Solar collector, as the key component of any solar system, has always been the focal point of research in the field of solar energy. Based on the literature, data-based methods, which have been proven to be promising in accurate modelling of solar collectors, have not been used for modelling heat pipe solar collectors (HPSCs). At the same time, accurate equations relating the thermal efficiency of solar collectors to the operational and climatic conditions have not been obtained for HPSCs. Therefore, in this study, various data-based and energy balance-based modelling methods were proposed, and based on different accuracy criteria, their precisions …
Reversible And Irreversible Adsorption Of Bare And Hybrid Silica Nanoparticles Onto Carbonate Surface At Reservoir Condition, Zain-Ul-Abedin Arain, Sarmad Al-Anssari, Muhammad Ali, Shoaib Memon, Masood Ahmed Bhatti, Christopher Lagat, Mohammad Sarmadivaleh
Reversible And Irreversible Adsorption Of Bare And Hybrid Silica Nanoparticles Onto Carbonate Surface At Reservoir Condition, Zain-Ul-Abedin Arain, Sarmad Al-Anssari, Muhammad Ali, Shoaib Memon, Masood Ahmed Bhatti, Christopher Lagat, Mohammad Sarmadivaleh
Research outputs 2014 to 2021
© 2020 Southwest Petroleum University Realistic implementation of nanofluids in subsurface projects including carbon geosequestration and enhanced oil recovery requires full understanding of nanoparticles (NPs) adsorption behaviour in the porous media. The physicochemical interactions between NPs and between the NP and the porous media grain surface control the adsorption behavior of NPs. This study investigates the reversible and irreversible adsorption of silica NPs onto oil-wet and water-wet carbonate surfaces at reservoir conditions. Each carbonate sample was treated with different concentrations of silica nanofluid to investigate NP adsorption in terms of nanoparticles initial size and hydrophobicity at different temperatures, and pressures. …
Energy Engineering Approach For Rural Areas Cattle Farmers In Bangladesh To Reduce Covid-19 Impact On Food Safety, Mohammad Nur-E-Alam, Mohammad Nasirul Hoque, Soyed Mohiuddin Ahmed, Mohammad Khairul Basher, Narottam Das
Energy Engineering Approach For Rural Areas Cattle Farmers In Bangladesh To Reduce Covid-19 Impact On Food Safety, Mohammad Nur-E-Alam, Mohammad Nasirul Hoque, Soyed Mohiuddin Ahmed, Mohammad Khairul Basher, Narottam Das
Research outputs 2014 to 2021
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This paper reports on the optimization of thin-film coating-assisted, self-sustainable, off-grid hybrid power generation systems for cattle farming in rural areas of Bangladesh. Bangladesh is a lower middle-income country with declining rates of poverty among its 160 million people due to persistent economic growth in conjunction with balanced agricultural improvements. Most of the rural households adopt a mixed farming system by cultivating crops and simultaneously rearing livestock. Among the animals raised, cattle are considered as the most valuable asset for the small-/medium-scale farmers in terms of their meat and milk production. …
A Sample Weight And Adaboost Cnn-Based Coarse To Fine Classification Of Fruit And Vegetables At A Supermarket Self-Checkout, Khurram Hameed, Douglas Chai, Alexander Rassau
A Sample Weight And Adaboost Cnn-Based Coarse To Fine Classification Of Fruit And Vegetables At A Supermarket Self-Checkout, Khurram Hameed, Douglas Chai, Alexander Rassau
Research outputs 2014 to 2021
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. The physical features of fruit and vegetables make the task of vision-based classification of fruit and vegetables challenging. The classification of fruit and vegetables at a supermarket self-checkout poses even more challenges due to variable lighting conditions and human factors arising from customer interactions with the system along with the challenges associated with the colour, texture, shape, and size of a fruit or vegetable. Considering this complex application, we have proposed a progressive coarse to fine classification technique to classify fruit and vegetables at supermarket checkouts. The image and weight of …
Nano-Mechanical Properties And Pore-Scale Characterization Of Different Rank Coals, Yihuai Zhang, Maxim Lebedev, Gregory Smith, Yu Jing, Andreas Busch, Stefan Iglauer
Nano-Mechanical Properties And Pore-Scale Characterization Of Different Rank Coals, Yihuai Zhang, Maxim Lebedev, Gregory Smith, Yu Jing, Andreas Busch, Stefan Iglauer
Research outputs 2014 to 2021
Characterization of coal micro-structure and the associated rock mechanical properties are of key importance for coal seam exploration, coal bed methane development, enhanced coal bed methane production and CO2 storage in deep coal seams. Considerable knowledge exists about coal chemical properties, but less is known about the nanoscale to the micro-scale structure of coals and how they change with coal strength across coal ranks. Thus, in this study, 3D X-ray micro-computed tomography (with a voxel size of 3.43 µm) and nano-indentation tests were conducted on coal samples of different ranks from peat to anthracite. The micro-structure of peats showed a …