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Field test of multi-hop image sensing network prototype on a city-wide scale

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Digital Communications and Networks 2019年第2期5卷 131-137页

作者： Xianhui Che Barry Ip zhuge yan School of Computer Science University of HertfordshireALIO 9GHUK Robert Kennedy College Technoparkstrasse 18005 ZurichSwitzerland Department of Electrical and Electronic Engineering University of Nottingham Ningbo Campus315100NingboChina

Wireless multimedia sensor networks drastically stretch the horizon of traditional monitoring and surveillance systems. Most existing research has utilized Zigbee or WiFi as the communication technology. Both technologies use ultra-high frequencies (primarily 2.4 GHz) and suffer from a relatively short transmission range (i.e., 100 m line-of-sight). The objective of this study is to assess the feasibility and potential of transmitting image information using RF modules with lower frequencies (e.g., 433 MHz) to achieve a larger-scale deployment as in a city scenario. The Arduino platform is used because of its low cost and simplicity. Details of hardware properties are provided in this article, and we investigate optimum configurations for the system. After achieving an initial range test transmission distance of more than 2000 m line-of-sight, the prototype network is installed in a real life city plot for further examination of performance. A range of suitable applications is proposed and suggestions for future research are provided.

关键词： Image sensing Prototype Field test

Local buckling of thin plate on tensionless elastic foundations under interactive uniaxial compression and shear

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Theoretical & Applied Mechanics Letters 2018年第2期8卷 75-82页

作者： Iianghui Dong Xing Ma yan zhuge Julie E.Mills School of Natural and Built Environments University of South AustraliaAdelaideSA 5095Australia

This paper uses a mathematical method to develop an analytical solution to the local buckling behaviour of long rectangular plates resting on tensionless elastic Winkler foundations and under combined uniform longitudinal uniaxial compressive and uniform in-plane shear loads. Fitted formulas are derived for plates with clamped edges and simplified supported edges. Two examples are given to demonstrate the application of the current method： one is a plate on tensionless spring foundations and the other is the contact between the steel sheet and elastic solid foundation. Finite element （FE） analysis is also conducted to validate the analytical results. Good agreement is obtained between the current method and FE analysis.

关键词： Buckling coefficient Contact buckling Winkler foundation Interaction curve Finite element analysis

Valorisation of alum sludge to produce green and durable mortar

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Waste Disposal and Sustainable Energy 2022年第4期4卷 283-295页

作者： Qiong Jia yan zhuge Weiwei Duan Yue Liu Jing yang Osama Youssf Jinsuo Lu UniSA STEM University of South AustraliaAdelaideSA5000Australia School of Environmental and Municipal Engineering Department Xi’an University of Architecture and TechnologyXi’an710055China Structural Engineering Department Faculty of EngineeringMansoura UniversityMansoura35516Egypt

Alum sludge is a typical by-product of drinking water treatment *** sludge is disposed of at landfill sites,and such a disposal method may cause significant environmental concern due to its vast *** paper assessed the feasibility of reusing sludge as a supplementary cementitious material,which could efficiently exhaust stockpiled ***,the pozzolanic reactivity of sludge at different temperatures,the reaction mechanism of the sludge-cement binder,and the resistance of sludge-derived mortar to microbially induced corrosion were *** obtained results indicated that 800℃ was the optimal calcination temperature for *** containing sludge up to 30%by weight showed comparable physical properties at a curing age of 90 *** with 10%cement replaced by sludge can significantly improve the resistance to biogenic corrosion due to the formation of Al-bearing phases with high resistance to acidic media,e.g.,Ca_(4)Al_(2)O_(7)·xH_(2)O and strätlingite.

关键词： Alum sludge Pozzolanic activity Microbially induced corrosion Cement-based composites Utilisation of waste

Comparative impact behaviours of ultra high performance concrete columns reinforced with polypropylene vs steel fibres

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Defence Technology（防务技术） 2024年第10期40卷 138-153页

作者： Thong M.Pham Harrison Hyde Maw K.Kaung yan zhuge Duong T.Tran Des Vlietstra Tung M.Tran UniSA STEMUniversity of South AustraliaMawson LakesSA 5095Australia BG&E Pty Ltd Wellington StreetPerthWA6000Australia Austral Construction Pty Ltd St Georges TerracePerthWA6000Australia Centre for Infrastructural Monitoring and Protection(CIMP) Curtin UniversityKent StBentleyWA 6102Australia Barchip Australia Pty Ltd U 26 Qualtroughq StreetWoolloongabbaQueensland4102Australia Sustainable Developments in Civil Engineering Research Group Faculty of Civil EngineeringTon Duc Thang UniversityHo Chi Minh City72915Viet Nam

Polypropylene(PP) fibres have primarily used to control shrinkage cracks or mitigate explosive spalling in concrete structures exposed to fire or subjected to impact/blast loads, with limited investigations on capacity improvement. This study unveils the possibility of using PP micro-fibres to improve the impact behaviour of fibre-reinforced ultra-high-performance concrete(FRUHPC) columns. Results show that the addition of fibres significantly improves the impact behaviour of FRUHPC columns by shifting the failure mechanism from brittle shear to favourable flexural failure. The addition of steel or PP fibres affected the impact responses differently. Steel fibres considerably increased the peak impact force(up to 18%) while PP micro-fibres slightly increased the peak(3%-4%). FRUHPC significantly reduced the maximum midheight displacement by up to 30%(under 20°impact) and substantially improved the displacement recovery by up to 100%(under 20° impact). FRUHPC with steel fibres significantly improved the energy absorption while those with PP micro-fibres reduced the energy absorption, which is different from the effect of PP-macro fibre reported in the literature. The optimal fibre content for micro-PP fibres is 1% due to its minimal fibre usage and low peak and residual displacement. This study highlights the potential of FRUHPC as a promising material for impact-resistant structures by creating a more favourable flexural failure mechanism, enhancing ductility and toughness under impact loading, and advancing the understanding of the role of fibres in structural performance.

关键词： Ultra high-performance concrete Steel fibre Polypropylene micro-fibre Fibre volume fraction Impact loading Pendulum tests Columns

Modelling of URM Walls Retrofitted with Cable: A Comparison Between a Basic Mechanical Model and Distinct Element Method

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Transactions of Tianjin University 2006年第B9期12卷 171-176页

作者： zhuge yan CHUANG Shihwei School of Natural and Built Environments University of South Australia Adelaide SA 5095 Australia

The Australian love of 'heritage' buildings (most of them are unreinforced masonry (URM)) means that greater attention is required to secure their performance under seismic or impact loading in the future. A research project has been carried out to develop a new, economic and high strength retrofitting technique for masonry structures. A series of experimental testing on URM walls retrofitted with an innovative technique by cable system have been conducted. In this paper, an analytical model which is based on distinct element method (DEM) is developed to simulate the behaviour of retrofitted walls. In DEM, a solid is represented as an assembly of discrete blocks. Joints are modelled as interface between distinct bodies. It is a dynamic process and specially designed to model the behaviour of discontinuities. In order to assist the practising engineers to design this new retrofitted wall system, a simple mechanical model was also developed to predict the strength of the retrofitted walls. The results obtained from this simple mechanical model are compared with those from both experiments and distinct element model.

关键词： unreinforced masonry walls retrofitting cable distinct element method

One-step random-walk process of nanoparticles in cement-based materials

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Journal of Central South University 2021年第6期28卷 1679-1691页

作者： Ali BAHARI Aref SADEGHI-NIK Elena CERRO-PRADA Adel SADEGHI-NIK Mandana ROODBARI yan zhuge Department of Physics University of MazandaranBabolsarIran Young Researchers and Elite Club Sari BranchIslamic Azad UniversitySariIran Department of Civil Engineering Universidad Politécnica de MadridMadridSpain Department of Civil Engineering University of South AustraliaAdelaideAustralia

Efficient modelling approaches capable of predicting the behavior and effects of nanoparticles in cement-based materials are required for conducting relevant *** the microstructural characterization of a cement-nanoparticle system,this paper investigates the potential of cell-based weighted random-walk method to establish statistically significant relationships between chemical bonding and diffusion processes of nanoparticles within cement ***_(0.5)C_(0.5)O_(3)(LSCO)nanoparticles were employed to develop a discrete event system that accounts for the behavior of individual cells where nanoparticles and cement components were expected to *** stochastic model is based on annihilation(loss)and creation(gain)of a bond in the *** model considers both chemical reactions and transport mechanism of nanoparticles from cementitious cells,along with cement hydration *** approach may be useful for simulating nanoparticle transport in complex 2D cement-based materials systems.

关键词： Markov chain Monte Carlo random-walk method Fokker-Planck equation LaSr_(0.5)C_(0.5)O_(3)(LSCO) cement nanoparticle incorporation

Predictive Block-Matching Algorithm for Wireless Video Sensor Network Using Neural Network

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Journal of Computer and Communications 2017年第10期5卷 66-77页

作者： zhuge yan Siu-Yeung Cho Sherif Welsen Shaker Department of Electrical and Electronic Engineering Faculty of Science and Engineering University of Nottingham Ningbo China Ningbo China

This paper proposed a back propagation neural network model for predictive block-matching. Predictive block-matching is a way to significantly decrease the computational complexity of motion estimation, but the traditional prediction model was proposed 26 years ago. It is straight forward but not accurate enough. The proposed back propagation neural network has 5 inputs, 5 neutrons and 1 output. Because of its simplicity, it requires very little calculation power which is negligible compared with existing computation complexity. The test results show 10% - 30% higher prediction accuracy and PSNR improvement up to 0.3 dB. The above advantages make it a feasible replacement of the current model.

关键词： Wireless Sensor Network Predictive Block-Matching Neural Network High Efficaciously Video Coding

Significance Analysis of Flexural Behaviour of Hybrid Sandwich Panels

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Open Journal of Civil Engineering 2013年第3期3卷 1-7页

作者： Jauhar Fajrin yan zhuge Frank Bullen Hao Wang Centre of Excellence in Engineering Composite (CEEFC) University of Southern Queensland Toowoomba Toowoomba Australia

This paper presents the significance analysis of a new type of hybrid composite sandwich wall panel which can be manufactured as modular panelised system. Two different types of natural fibers reinforced plastics (NFRP) laminate were incorporated into the new sandwich panel as an intermediate layer. The significance analysis in this research has been carried out using analysis of variance (ANOVA). As the aim of the analysis is to select the most appropriate natural fiber composites for the intermediate layer, the experiments were arranged as a single factor experiment in which 3 levels of a factor have been examined. The factor refers to the type of intermediate layer used in the sandwich panel. The result of this study shows that the incorporation of intermediate layer has significantly enhanced the load carrying capacity of the sandwich panels.

关键词： Hybrid Structure Sandwich Panels Significance Analysis Natural Fiber Composites Building Construction

如意金黄散联合珍黄丸外敷治疗化疗性静脉炎的疗效观察

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中国医院药学杂志 2011年第1期31卷 58-59页

作者：诸葛燕红兰溪市人民医院浙江兰溪321100

目的:探讨如意金黄散联合珍黄丸治疗化疗性静脉炎的疗效。方法:将96例化疗性静脉炎患者随机分为观察组和对照组各48例,观察组使用如意金黄散联合珍黄丸外用治疗化疗性静脉炎,对照组单用如意金黄散外用治疗化疗性静脉炎,3d后进行疗效对... 详细信息

目的:探讨如意金黄散联合珍黄丸治疗化疗性静脉炎的疗效。方法:将96例化疗性静脉炎患者随机分为观察组和对照组各48例,观察组使用如意金黄散联合珍黄丸外用治疗化疗性静脉炎,对照组单用如意金黄散外用治疗化疗性静脉炎,3d后进行疗效对比。结果:观察组在总有效率方面明显高于对照组。结论:如意金黄散联合珍黄丸外敷对化疗性静脉炎有良好的效果。

关键词：如意金黄散珍黄丸静脉炎