ORCID Profile
0000-0002-3970-3999
Current Organisations
RMIT University
,
Shenzhen University
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In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Civil Engineering | Construction Engineering | Structural Engineering | Structural Engineering |
Housing | Road Infrastructure and Networks | Cement and Concrete Materials | Civil | Civil Construction Design
Publisher: Elsevier BV
Date: 03-2011
Publisher: Elsevier BV
Date: 11-2018
Publisher: Springer Singapore
Date: 04-09-2019
Publisher: Elsevier BV
Date: 2015
Publisher: Elsevier BV
Date: 09-2017
Publisher: Elsevier BV
Date: 07-2019
Publisher: Elsevier BV
Date: 04-2004
Publisher: Elsevier BV
Date: 08-2009
Publisher: Elsevier BV
Date: 09-2020
Publisher: Elsevier BV
Date: 11-2017
Publisher: Elsevier BV
Date: 06-2008
Publisher: Elsevier BV
Date: 02-2021
Publisher: Elsevier BV
Date: 2021
Publisher: Springer Science and Business Media LLC
Date: 21-05-2016
Publisher: Thomas Telford Ltd.
Date: 07-2014
Abstract: Owing to its importance in evaluating the fracture behaviour of concrete, crack extension resistance has been studied based mainly on experimental results. In this paper, an analytical method is developed for determining the crack extension resistance curve of concrete. It is assumed that, when the difference in stress intensity factor caused by external forces and by the cohesive stress within the fracture process zone is equal to the initial cracking toughness, crack propagation is initiated. According to this assumption, the crack extension resistance curve of concrete is expressed analytically as either the stress intensity factor caused by external forces, or the sum of the initial cracking toughness and the stress intensity factor by the cohesive stress within the fracture process zone. One advantage of this method is that, unlike other methods, the experimentally measured load–crack mouth opening displacement curve is not required in calculating the crack extension resistance curve. Based on numerical results, it is found that the crack extension resistance curve is independent of initial crack length. Also, for a given fracture energy, the shape of the cohesive stress–crack opening displacement curve exhibits no significant effect on the crack extension resistance curve. It is concluded that the proposed method can predict the crack extension resistance curve of concrete with reasonable accuracy.
Publisher: SAGE Publications
Date: 08-2005
DOI: 10.1260/136943305774353133
Abstract: The main focus of this paper is to describe the behaviour of RC columns that are retrofitted with an alternative technique to “jacketing” or wrapping. This new technique consists of attaching steel plates to the flexural faces of a concrete column using bolts. It is envisaged that this technique would be suitable primarily for columns having rectangular cross-sections and in situations where lateral loading induces predominately a single plane of bending (as opposed to biaxial bending). Effectiveness of this new technique has been demonstrated by experimental testing and numerical simulations. This paper studies the mechanism of the new retrofit scheme, how it works, and the behaviour of columns retrofitted using such a scheme, as well as the important parameters that affect the response of the retrofitted columns. This study forms the basis for the design of the plate retrofitting system.
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2019
Publisher: Elsevier BV
Date: 10-2023
Publisher: Elsevier BV
Date: 04-2019
Publisher: American Society of Civil Engineers (ASCE)
Date: 02-2022
Publisher: Elsevier BV
Date: 07-2019
Publisher: American Concrete Institute
Date: 12-2014
DOI: 10.14359/51687232
Publisher: American Society of Civil Engineers (ASCE)
Date: 05-2016
Publisher: Elsevier BV
Date: 10-2018
Publisher: Informa UK Limited
Date: 2008
Publisher: Elsevier BV
Date: 03-2023
Publisher: Elsevier BV
Date: 2007
Publisher: Springer Science and Business Media LLC
Date: 17-12-2004
Publisher: Elsevier BV
Date: 02-2018
Publisher: Elsevier BV
Date: 2012
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2019
Publisher: Elsevier BV
Date: 2018
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2009
Publisher: Elsevier BV
Date: 07-2011
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2013
Publisher: American Society of Civil Engineers (ASCE)
Date: 02-2022
Publisher: MDPI AG
Date: 20-05-2021
DOI: 10.3390/SU13105741
Abstract: The addition of macro-polypropylene fibres improves the stress-strain performance of natural aggregate concrete (NAC). However, limited studies focus on the stress-strain performance of macro-polypropylene fibre-reinforced recycled aggregate concrete (RAC). Considering the variability of coarse recycled aggregates (CRA), more studies are needed to investigate the stress-strain performance of macro-polypropylene fibre-reinforced RAC. In this study, a new type of 48 mm long BarChip macro-polypropylene fibre with a continuously embossed surface texture is used to produce BarChip fibre-reinforced NAC (BFNAC) and RAC (BFRAC). The stress-strain performance of BFNAC and BFRAC is studied for varying dosages of BarChip fibres. Results show that the increase in energy dissipation capacity (i.e., area under the curve), peak stress, and peak strain of s les is observed with an increase in fibre dosage, indicating the positive effect of fibre addition on the stress-strain performance of concrete. The strength enhancement due to the addition of fibres is higher for BFRAC s les than BFNAC s les. The reduction in peak stress, ultimate strain, toughness and specific toughness of concrete s les due to the utilisation of CRA also reduces with the addition of fibres. Hence, the negative effect of CRA on the properties of concrete s les can be minimised by adding BarChip macro-polypropylene fibres. The applicability of the stress-strain model previously developed for macro-synthetic and steel fibre-reinforced NAC and RAC to BFNAC and BFRAC is also examined.
Publisher: American Society of Civil Engineers (ASCE)
Date: 02-2016
Publisher: Elsevier BV
Date: 09-2004
Publisher: Elsevier BV
Date: 2019
Publisher: American Society of Civil Engineers (ASCE)
Date: 02-2008
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2021
Publisher: Thomas Telford Ltd.
Date: 11-2011
DOI: 10.1680/MACR.2011.63.11.861
Abstract: The use of externally bonded fibre reinforced polymer (EB-FRP) composites is becoming popular for the repair of understrengthened or damaged reinforced concrete members. However, the EB-FRP strengthened members often fail owing to fibre reinforced polymer (FRP) debonding, reducing the strength utilisation ratio of FRP and leading to catastrophic structural failure. To solve the problem, an improved hybrid bonded FRP (IHB-FRP) technique is developed in this paper. The pull-out test was conducted to select an appropriate mechanical fastener for the technique and IHB-FRP strengthened reinforced concrete beams were tested under three-point bending to examine the effectiveness of the technique. Experimental results show that the selected fastener is suitable for the IHB-FRP technique and the IHB-FRP strengthened beam fails owing to FRP rupture even for seven plies of FRP strips. Finally, the required tightening force in the fastener is estimated to ensure the effectiveness of the IHB-FRP technique.
Publisher: Elsevier BV
Date: 12-2020
Publisher: American Society of Civil Engineers (ASCE)
Date: 12-2004
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2017
Publisher: Elsevier BV
Date: 2018
Publisher: Elsevier BV
Date: 09-2009
Publisher: Elsevier BV
Date: 05-2017
Publisher: Elsevier BV
Date: 2013
Publisher: American Concrete Institute
Date: 03-2017
DOI: 10.14359/51689429
Publisher: Elsevier
Date: 2022
Publisher: Elsevier BV
Date: 09-2017
Publisher: Elsevier BV
Date: 2017
Publisher: Elsevier BV
Date: 04-2023
Publisher: Elsevier BV
Date: 12-2019
Publisher: Elsevier BV
Date: 11-2022
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2014
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2010
Publisher: Elsevier BV
Date: 10-2017
Publisher: Elsevier BV
Date: 2018
Publisher: IOP Publishing
Date: 04-2020
DOI: 10.1088/1757-899X/829/1/012003
Abstract: Reuse of concrete waste in novel construction is becoming very important topic nowadays. This study focuses to examine the post-cracking and mechanical performance, fracture behavior, and micro-structure of fiber strengthened recycled aggregate concrete (RAC). For this purpose, crack mouth opening diameter (CMOD) tests were conducted on twenty-seven notched beam specimens (550 × 150 × 150 mm) having three replacement levels (i.e., 0, 50 and 100%) of recycled concrete aggregates (RCA) and three synthetic fiber dosages (i.e., 0, 0.5 and 1%). Different mechanical properties of all mixes were also examined following ASTM standards. Drop in the mechanical performance of RAC was noticed at higher RCA replacement levels. However, synthetic fiber reinforced RAC showed better performance as compared to plain RAC. Results also depict positive influence of synthetic fiber addition on the residual flexural tensile strength of concrete. Approximately, 129% and 380% rise in toughness index and fracture energy was also observed for 1% fiber incorporation in RAC. Moreover, scanning electron microscopic analysis also confirmed the synthetic fiber-mortar bond. Therefore, synthetic fibers enhance the post-cracking and mechanical performance of fiber reinforced RAC resulting into more ductile and energy absorbing sustainable concrete.
Publisher: IOP Publishing
Date: 04-2020
DOI: 10.1088/1757-899X/829/1/012004
Abstract: Costly and non-environment-friendly methods are used to improve the inferior behavior of recycled aggregate concrete (RAC). Conversely, the strength enrichment of concrete due to confinement provided by lateral reinforcement is ignored in the design of concrete compression members. The focus of this study is to investigate the role of pre-existing transverse reinforcement and different design strengths of concrete on the stress strain behavior of RAC. For this reason, stress-strain behavior of spiral steel confined concrete specimens having variable confinement pressure, recycled aggregates (RA) replacement percentage and design strength is investigated. The results show a drop in compressive strength of concrete with the increase in replacement percentage of RA. However, steel confinement has a positive role to counterbalance the adverse effect of RA replacement on concrete strength. Improved ductility and stress-strain behavior of RAC are observed with the increase in confinement pressure. Based on the results, the un-utilized pre-existing steel spiral reinforcement in the concrete compression members can offset the inferior performance of RAC resulting into sustainable and cost-effective construction.
Publisher: Elsevier BV
Date: 03-2014
Publisher: American Society of Civil Engineers (ASCE)
Date: 08-2014
Publisher: American Concrete Institute
Date: 2021
DOI: 10.14359/51728089
Publisher: Elsevier BV
Date: 2012
Publisher: Elsevier BV
Date: 09-2022
Publisher: Elsevier BV
Date: 2011
Publisher: American Society of Civil Engineers (ASCE)
Date: 06-2008
Publisher: American Society of Civil Engineers (ASCE)
Date: 12-2014
Publisher: Elsevier BV
Date: 10-2020
Publisher: SAGE Publications
Date: 18-09-2017
Abstract: In recent years, externally bonded carbon fibre–reinforced polymer has been considered an innovative way to strengthen steel structures attributed to its high strength-to-weight ratio, excellent corrosion resistance and fatigue performance. This article presents an experimental and numerical study on the fatigue behaviour of defected steel beams strengthened with carbon fibre–reinforced polymer laminates, with a special focus on the effect of interfacial debonding. Analytical modelling and numerical simulation confirmed that the interfacial debonding had a pronounced effect on carbon fibre–reinforced polymer strain and stress intensity factor at the crack front. After introducing interfacial debonding from experimental findings into the numerical analysis, the fatigue life and crack propagation versus cycle numbers of the specimens compared well with the test results. Based on the current experimental program, specimens with Sikadur 30 were more prone to debonding failure therefore, Araldite 420 is suggested for strengthening schemes.
Publisher: American Society of Civil Engineers (ASCE)
Date: 06-2006
Publisher: Elsevier BV
Date: 04-2019
Publisher: Zhejiang University Press
Date: 04-2018
Publisher: Elsevier BV
Date: 02-2019
Publisher: Elsevier BV
Date: 09-2019
Publisher: Elsevier BV
Date: 08-2016
Publisher: Elsevier BV
Date: 08-2009
Publisher: Elsevier BV
Date: 07-2022
Publisher: American Society of Civil Engineers (ASCE)
Date: 12-2016
Publisher: Elsevier BV
Date: 09-2007
Publisher: Elsevier BV
Date: 12-2023
Publisher: Elsevier BV
Date: 09-2022
Publisher: Elsevier BV
Date: 05-2018
Publisher: Elsevier BV
Date: 2010
Publisher: SAGE Publications
Date: 07-2015
Publisher: Elsevier BV
Date: 10-2007
Publisher: Elsevier BV
Date: 06-2011
Publisher: Springer Science and Business Media LLC
Date: 11-09-2019
Publisher: Elsevier BV
Date: 05-2014
Publisher: Springer Singapore
Date: 23-12-2020
Publisher: American Society of Civil Engineers (ASCE)
Date: 06-2016
Publisher: Elsevier BV
Date: 02-2004
Publisher: American Society of Civil Engineers (ASCE)
Date: 08-2015
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2017
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2006
Publisher: Wiley
Date: 05-11-2019
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2003
Publisher: SAGE Publications
Date: 08-2006
DOI: 10.1260/136943306778812769
Abstract: Extensive investigations on seismic retrofitting of reinforced concrete columns have been undertaken in recent years and many retrofitting methods have been developed and reported in the literature. However contradictory results and conclusions are not rare especially for jacketing of rectilinear columns, and there is not a clear picture on the current state-of-the-art in the literature. This work is based on the review and assessment of more than 120 papers, and collection and analysis of more than 700 column tests. In combination with the authors' original theoretical studies and experimental testing, this work identifies the key factors that affect the effectiveness and deficiencies of different retrofitting techniques and provides engineers with a clearer picture on the capabilities of different retrofitting techniques, in particular how to improve the effectiveness of a jacketing system. From the theoretical studies, this work also provides researchers with fundamental insight and principles that govern the retrofitting of RC columns, which shed light on the development of new models and identification of further research subjects.
Publisher: Elsevier BV
Date: 02-2021
Publisher: Elsevier BV
Date: 02-2007
Publisher: Elsevier BV
Date: 11-2012
Publisher: Elsevier BV
Date: 02-2018
Publisher: Elsevier BV
Date: 12-2015
Publisher: Elsevier BV
Date: 11-2017
Publisher: MDPI AG
Date: 11-11-2022
Abstract: Fiber-reinforced polymers (FRPs) provide promising prospects for replacing steel bars in traditional reinforced concrete structures. However, the use of FRP as tension bars in concrete beams leads to insufficient ductility because of its elastic characteristics. A newly developed compression-yielding (CY) beam has successfully solved this issue. Instead of tensile reinforcement yield, the ductile deformation of a CY beam is realized by the compression yield of a CY block in the compressive region. Another important feature is that the CY block is also the fuse of the beam, where material damage to the beam is concentrated in the CY block region and can be easily replaced. As a load-bearing recoverable and ductile structure, it is necessary to conduct a reliability-based design analysis and recommend reduction factors for this new structure. In this study, the function for calculating the failure probability of CY beams is proposed, semi-probabilistic design recommendations are presented, and Monte Carlo simulation (MCS) is adopted as a reliability analysis method. This study discusses the influence of the possible characteristics of the critical variables on reliability and provides the reliability index with different reduction factors to guide the design of the CY beam. These analyses indicate that the reliability index can be improved from the material design of the CY block in greater strength fb, smaller depth, smaller coefficient of variation of fb, and yield modulus ratio ξ. This study also shows that compared with the design of FRP concrete beams, the ductile failure mode of the CY beams allows a lower safety factor to meet safety requirements, which significantly reduces construction costs and avoids over-designing the load-bearing capacity.
Publisher: American Society of Civil Engineers (ASCE)
Date: 07-2017
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2022
Publisher: American Concrete Institute
Date: 03-2022
DOI: 10.14359/51734340
Publisher: Elsevier BV
Date: 10-2007
Publisher: Elsevier BV
Date: 10-2008
Publisher: Elsevier BV
Date: 02-2013
Publisher: Elsevier BV
Date: 11-2017
Publisher: Elsevier BV
Date: 02-2006
Publisher: Wiley
Date: 13-05-2009
Publisher: Elsevier BV
Date: 06-2012
Publisher: Springer Science and Business Media LLC
Date: 20-07-2008
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2016
Publisher: Elsevier BV
Date: 11-2008
Publisher: Elsevier BV
Date: 12-2020
Publisher: American Society of Civil Engineers (ASCE)
Date: 02-2021
Publisher: Elsevier BV
Date: 08-2018
Publisher: American Society of Civil Engineers (ASCE)
Date: 12-2014
Publisher: Elsevier BV
Date: 2026
Publisher: Elsevier BV
Date: 2022
Publisher: Elsevier BV
Date: 06-2021
Publisher: Elsevier BV
Date: 12-2015
Publisher: The Hong Kong Institute of Steel Construction
Date: 2016
Publisher: IOP Publishing
Date: 02-2021
DOI: 10.1088/1742-6596/1777/1/012067
Abstract: Experimental and theoretical studies are combined to investigate the phenomenon of macroscopic plastic deformation localization in metallic tensile specimens of AL6061, HSLA350 and Q235. The longitudinal strain and cross-section reduction of the specimens at different instant during testing are estimated through the measurement technique of three dimensional digital image correlation (3D-DIC). The Ling weighted-average method referred as WAM is used to compare the true stress-strain relation obtained from the experiment. A new mathematical model is suggested to estimate the localization zone length, which is a crucial parameter that can be used to anticipate the behaviour of metals past the peak load. The effect of material property on the necking zone length is examined. The experimental results show that the axial strain within the necking zone is non-uniform. It is also found that the WAM can precisely derive the true stress of steels Q235 and HSLA350 but not AL6061. The localization zone length of the round specimens Q235, HSLA350, and AL6061 equals six, five, and four times their initial diameter, respectively. Materials with a higher fracture strain ratio to the ultimate strain have a shorter necking zone length. This work provides insights into the physical mechanism of macroscopic plastic deformation localization.
Publisher: Elsevier BV
Date: 02-2008
Publisher: Elsevier BV
Date: 12-2018
Publisher: Elsevier BV
Date: 09-2019
Publisher: Trans Tech Publications, Ltd.
Date: 2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.446-449.3569
Abstract: Beam reinforcement is reduced to mechanics behavior of structures of multilayer materials in this paper. An analytical method is presented based on Hamiltonian system. In the system, displacements and stresses are pairs of dual variables. The state vectors of the system describe directly connective conditions on the interfaces of two materials and structures so that the rule of normal and shear stresses on the interface can be revealed. Based on the criterion of lamination crack, the interface strength is determined. Results show that the lamination crack correlates highly with the ratios of material constants and geometrical parameters of structures. The result and conclusion provide a design criterion for structure reinforcement.
Publisher: Elsevier BV
Date: 05-2017
Publisher: Elsevier BV
Date: 04-2020
Publisher: Elsevier BV
Date: 06-2012
Publisher: Elsevier BV
Date: 12-2019
Publisher: MDPI AG
Date: 13-11-2021
DOI: 10.3390/EN14227601
Abstract: The Qiqi structure design can automatically upset and spill its content once it arrives at limit capacity under vertical water flow excitation. Considering this function, the Qiqi structure has been utilized for small hydroelectric energy harvesting lately. To investigate the tradeoff between the Qiqi structure and the turbine structure for small hydroelectric energy harvesting, an energy harvester based on a hybrid Qiqi and turbine structure is proposed for vertical water flow hydroelectric applications. The hybrid structure is composed of a rectangular Qiqi structure, with two blades inserted on both sides. Self-tipping function of the hybrid Qiqi structure and working principle of the structure is investigated in detail. The proposed structure has both the advantages of low flow velocity energy harvesting of the Qiqi structure and high flow velocity energy harvesting of the turbine structure. A hydroelectric energy harvesting application using the hybrid structure is given to demonstrate that the hybrid structure had a higher rotational speed than the Qiqi structure under vertical low water flow excitation and was able to work at relatively high flow rates. Thus, the investigated hybrid structure can help small rotational hydropower achieve better energy harvesting performance and work at wide-range flow rates under vertical ultra-low water flow applications. At 600 mL/min, 902 μJ of electrical energy was charged by the investigated structure, which is six times higher than that using the Qiqi structure alone.
Publisher: Informa UK Limited
Date: 07-11-2002
Publisher: Springer Science and Business Media LLC
Date: 03-2014
Publisher: American Society of Civil Engineers (ASCE)
Date: 12-2022
Publisher: Elsevier BV
Date: 12-2020
Publisher: Elsevier BV
Date: 2011
Publisher: Elsevier BV
Date: 11-2019
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2022
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2020
Publisher: Elsevier BV
Date: 11-2017
Publisher: Elsevier BV
Date: 09-2020
Publisher: American Society of Civil Engineers (ASCE)
Date: 2022
Publisher: Elsevier BV
Date: 12-2010
Publisher: Elsevier BV
Date: 12-2018
Publisher: MDPI AG
Date: 31-05-2020
Abstract: This paper presents an experimental program that includes 78 fiber reinforced polymer (FRP)-confined square concrete columns subjected to eccentric loading. The degradation of the axial strength of FRP-confined short concrete columns due to the load eccentricity is investigated in this work. A larger load eccentricity leads to a greater decrease in the axial strength. From the test results, it is found that FRP confinement can cause less strength degradation compared with that of unconfined concrete specimens. For FRP-confined square concrete specimens, the strength enhancement due to FRP confinement increases with increasing load eccentricity. However, the increasing load eccentricity decreases the confinement efficiency for FRP-confined circular concrete specimens. The relationship between the strength of eccentrically loaded FRP-confined square columns and their corner radii is evaluated.
Publisher: Walter de Gruyter GmbH
Date: 2022
Abstract: Improving and reusing recycled aggregate concrete (RAC) is an ideal approach to develop sustainability in the construction industry. In this article, a newly proposed physical compression casting method was used in combination with a treatment of nano-silica (NS) particles to enhance the properties of RAC. Although using NS contributed to accelerating hydration, promoting pozzolanic reaction, and increasing calcium-silicate hydrate gel, the enhancement in strength and reduction in porosity was found to be limited. Thus, the compression casting method was used to compensate for the weaknesses. The effects of compression casting, NS, and their combinations on the properties of RAC were investigated. At the macro-level, the stress–strain responses were evaluated by examining the compressive strength, peak strain, and modulus of elasticity. At the micro-level, the porosity and pore distribution along the interface transition zones (ITZs) were investigated using mercury intrusion porosimetry analysis and scanning electronic microscope imaging technology. Compared with normal RAC, the compressive strength achieved by using NS particles, compression casting, and their combination were increased by 37, 88 and 143%, respectively. The compression casting or combination of compression casting and NS particles treatment can effectively reduce the total porosity of the mortar and pore ratio along the ITZs.
Publisher: Elsevier BV
Date: 11-2006
Publisher: American Society of Civil Engineers (ASCE)
Date: 03-2009
Publisher: Elsevier BV
Date: 2016
Publisher: American Society of Civil Engineers (ASCE)
Date: 02-2013
Publisher: Elsevier BV
Date: 11-2019
Publisher: Elsevier
Date: 2021
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2015
Publisher: Elsevier BV
Date: 12-2014
Publisher: Elsevier BV
Date: 10-2016
Publisher: MDPI AG
Date: 11-05-2016
DOI: 10.3390/POLYM8050186
Publisher: MDPI AG
Date: 18-11-2022
DOI: 10.3390/EN15228674
Abstract: In recent years, energy harvesters using pendulum systems have often been applied in ultra-low-frequency environments, such as ocean waves, human motion, and structural vibration. To illustrate the research progress in pendulum-type energy harvesting, a comprehensive review is provided in the present study. Specifically, single- and double-pendulum energy harvesters based on different energy-conversion mechanisms are separately grouped. In addition, different improvement techniques and design schemes used in studies on pendulum energy harvesters are summarized. Theoretical studies have explored the dynamic characteristics of single and double pendulums. Various key aspects, including the fundamental mechanisms, optimization methods, core structures, and applications, to improve the performance of single- and double-pendulum energy harvesters are discussed. Finally, several potential research directions and applications are proposed.
Publisher: Elsevier BV
Date: 07-2023
Publisher: Wiley
Date: 18-06-2015
DOI: 10.1002/AJMG.B.32333
Abstract: In idual differences in aggressive behavior emerge in early childhood and predict persisting behavioral problems and disorders. Studies of antisocial and severe aggression in adulthood indicate substantial underlying biology. However, little attention has been given to genome-wide approaches of aggressive behavior in children. We analyzed data from nine population-based studies and assessed aggressive behavior using well-validated parent-reported questionnaires. This is the largest s le exploring children's aggressive behavior to date (N = 18,988), with measures in two developmental stages (N = 15,668 early childhood and N = 16,311 middle childhood/early adolescence). First, we estimated the additive genetic variance of children's aggressive behavior based on genome-wide SNP information, using genome-wide complex trait analysis (GCTA). Second, genetic associations within each study were assessed using a quasi-Poisson regression approach, capturing the highly right-skewed distribution of aggressive behavior. Third, we performed meta-analyses of genome-wide associations for both the total age-mixed s le and the two developmental stages. Finally, we performed a gene-based test using the summary statistics of the total s le. GCTA quantified variance tagged by common SNPs (10-54%). The meta-analysis of the total s le identified one region in chromosome 2 (2p12) at near genome-wide significance (top SNP rs11126630, P = 5.30 × 10(-8) ). The separate meta-analyses of the two developmental stages revealed suggestive evidence of association at the same locus. The gene-based analysis indicated association of variation within AVPR1A with aggressive behavior. We conclude that common variants at 2p12 show suggestive evidence for association with childhood aggression. Replication of these initial findings is needed, and further studies should clarify its biological meaning. © 2015 Wiley Periodicals, Inc.
Publisher: Elsevier BV
Date: 2018
Publisher: Elsevier BV
Date: 08-2020
Publisher: Elsevier BV
Date: 12-2018
Publisher: Elsevier BV
Date: 12-2015
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2017
Publisher: American Society of Civil Engineers (ASCE)
Date: 11-2013
Publisher: American Society of Civil Engineers (ASCE)
Date: 2023
Publisher: Elsevier BV
Date: 09-2017
Publisher: Elsevier BV
Date: 08-2021
Publisher: Elsevier BV
Date: 09-2021
Publisher: Elsevier BV
Date: 05-2018
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2023
Publisher: Elsevier BV
Date: 04-2021
Publisher: American Society of Civil Engineers (ASCE)
Date: 08-2017
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2016
Publisher: Elsevier BV
Date: 02-2012
Publisher: Elsevier BV
Date: 07-2022
Publisher: Elsevier BV
Date: 04-2020
Publisher: Elsevier BV
Date: 03-2019
Publisher: Elsevier BV
Date: 04-2013
Publisher: Elsevier BV
Date: 02-2012
Start Date: 12-2020
End Date: 06-2024
Amount: $390,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 09-2003
End Date: 09-2006
Amount: $257,000.00
Funder: Australian Research Council
View Funded Activity