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Pareto-based multi-objective node placement of industrial wireless sensor networks using binary differential evolution harmony search

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Advances in manufacturing 2016年第1期4卷 66-78页

作者： Ling Wang Lu An Hao-Qi ni Wei Ye Panos m. Pardalos min-Rui Fei Shanghai Key Laboratory of Power Station AutomationTechnology School of Mechatronics Engineering andAutomation Shanghai University Shanghai 200072 People'sRepublic of China Department of Industrial and Systems Engineering Centerfor Applied Optimization University of Florida GainesvilleFlorida 32611 USA

The reliability and real time of industrial wireless sensor networks （IWSNs） are the absolute requirements for industrial systems, which are two fore- most obstacles for the large-scale applications of IWSNs. This paper studies the multi-objective node placement problem to guarantee the reliability and real time of IWSNs from the perspective of systems. A novel multi-objective node deployment model is proposed in which the reliabil- ity, real time, costs and scalability of IWSNs are addressed. Considering that the optimal node placement is an NP-hard problem, a new multi-objective binary differential evolu- tion harmony search （mOBDEHS） is developed to tackle it, which is inspired by the mechanism of harmony search and differential evolution. Three large-scale node deploy- ment problems are generated as the benCHmarks to verify the proposed model and algorithm. The experimental results demonstrate that the developed model is valid and can be used to design large-scale IWSNs with guaranteed reliability and real-time performance efficiently. moreover, the comparison results indicate that the proposed mOB- DEHS is an effective tool for multi-objective node place- ment problems and superior to Pareto-based binary differential evolution algorithms, nondominated sorting genetic algorithm II （NSGA-II） and modified NSGA-II.

关键词： Industrial wireless sensor networks (IWSNs)Node placement Harmony search Differential evolutionPareto Real time Reliability

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WIND ENERGY mAP OF ARABIAN GULF

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Natural Resources 2018年第5期9卷 212-228页

作者： Khaled al-Salem Subramaniam Neelamani waleed al-Nassar Coastal management Program Environment and Life Sciences Research Center Shuwaikh Kuwait Renewable Energy Program Energy and Building Research Centre Shuwaikh Kuwait

Wind power is not only pollution free and renewable but is becoming more economical with technology development. The countries around the Arabian Gulf region are investing for wind powers both the land and in their marine space. A detailed study on wind power resource in the Arabian Gulf is not available. This paper is on the wind energy resource availability over Arabian Gulf waters, covering 2300 grid points. The data available with Coastal Information System data base at Kuwait Institute for Scientific Research, Kuwait, from 1979 to 2015 is used. The probability density and power density were derived from these data source. Weibull probability density function has been fitted to the wind speed data and the wind power density was evaluated. The study is carried out at 10 m, 30 m and 50 m elevations. The central location of the Arabian Gulf has higher annual average wind speed, ranging from 6 to 8 m/s at 10 m elevation, 7 to 8 m/s at 30 m elevation and 8 to 9 m/s at 50 m elevation. The scale parameter “c” at central location of Arabian Gulf is found to range from 6 - 8 m/s for 10 m elevation, 7 - 8 m/s for 30 m elevation and 8 - 9 m/s for 50 m above sea level. The Weibull shape parameter k varies from 2.5 to 3 at the north and central of the Arabian Gulf. The annual mean wind power density over Arabian Gulf Waters is the highest in the central region of the Gulf. The power density at 10 m, 30 m and 50 m hub height varies between 200 to 300 w/m2, 200 to 300 w/m2 and more than 300 w/m2 respectively. It is attractive to install large scale wind power generation at the central region of the Arabian Gulf and at elevations of 30 m or 50 m, since this region lies in Class 2 category of the Wind Energy Resource Atlas of the United States. The wind power density is attractive especially in summer season around the central region location in Arabian Gulf (Saudi Arabia, Bahrain and Qatar), since high rate of power is used for air conditioning systems in summer.

关键词： Wind Energy Arabian Gulf Weibull Distribution Gulf Cooperation Council Kuwait

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Smart prediction of liquefaction-induced lateral spreading

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Journal of Rock mechanics and Geotechnical Engineering 2024年第6期16卷 2310-2325页

作者： muhammad Nouman Amjad Raja Tarek Abdoun waleed El-Sekelly New York University(NYU)Abu Dhabi Abu Dhabi129188United Arab Emirates University of management and Technology Lahore54372Pakistan Department of Civil and Environmental Eng. Rensselaer Polytechnic Institute(RPI)1108th StreetJEC 4049TroyNY12180USA Department of Structural Engineering Mansoura UniversityMansoura35516Egypt

The prediction of liquefaction-induced lateral spreading/displacement(Dh)is a challenging task for civil/geotechnical *** this study,a new approach is proposed to predict Dh using gene expression programming(GEP).Based on statistical reasoning,individual models were developed for two topographies:free-face and gently sloping *** with a comparison with conventional approaches for predicting the Dh,four additional regression-based soft computing models,*** process regression(GPR),relevance vector machine(RVm),sequential minimal optimization regression(SmOR),and m5-tree,were developed and compared with the GEP *** results indicate that the GEP models predict Dh with less bias,as evidenced by the root mean square error(RmSE)and mean absolute error(mAE)for training(i.e.1.092 and 0.815;and 0.643 and 0.526)and for testing(i.e.0.89 and 0.705;and 0.773 and 0.573)in free-face and gently sloping ground topographies,*** overall performance for the free-face topology was ranked as follows:GEP>RVm>m5-tree>GPR>SmOR,with a total score of 40,32,24,15,and 10,*** the gently sloping condition,the performance was ranked as follows:GEP>RVm>GPR>m5-tree>SmOR with a total score of 40,32,21,19,and 8,***,the results of the sensitivity analysis showed that for both free-face and gently sloping ground,the liquefiable layer thickness(T_(15))was the major parameter with percentage deterioration(%D)value of 99.15 and 90.72,respectively.

关键词： Lateral spreading Intelligent modeling Gene expression programming(GEP) Closed-form solution Feature importance

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Radio resource management in energy harvesting cooperative cognitive UAV assisted IoT networks:A multi-objective approach

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Digital Communications and Networks 2024年第4期10卷 1088-1102页

作者： muhammad Rashid Ramzan muhammad Naeem Omer Chughtai waleed Ejaz mohammad altaf Department of Electrical and Computer Engineering COMSATS University Islamabad(CUI)Wah CampusPakistan Department of Electrical Engineering Lakehead UniversityBarrieONL4M 3X9Canada

Cooperative communication through energy harvested relays in Cognitive Internet of Things(CIoT)has been envisioned as a promising solution to support massive connectivity of Cognitive Radio(CR)based IoT devices and to achieve maximal energy and spectral efficiency in upcoming wireless *** this work,a cooperative CIoT system is contemplated,in which a source acts as a satellite,communicating with multiple CIoT devices over numerous *** Aerial Vehicles(UAVs)are used as relays,which are equipped with onboard Energy Harvesting(EH)*** adopted a Power Splitting(PS)method for EH at relays,which are harvested from the Radio frequency(RF)*** conjunction with this,the Decode and Forward(DF)relaying strategy is used at UAV relays to transmit the messages from the satellite source to the CIoT *** developed a multi-Objective Optimization(mOO)framework for joint optimization of source power allocation,CIoT device selection,UAV relay assignment,and PS ratio *** formulated three objectives:maximizing the sum rate and the number of admitted CIoT in the network and minimizing the carbon dioxide *** mOO formulation is a mixed-Integer Non-Linear Programming(mINLP)problem,which is challenging to *** address the joint optimization problem for an epsilon optimal solution,an Outer Approximation algorithm(OAA)is proposed with reduced *** simulation results show that the proposed OAA is superior in terms of CIoT device selection and network utility maximization when compared to those obtained using the Nonlinear Optimization with mesh Adaptive Direct-search(NOmAD)algorithm.

关键词： Cooperative communication Energy harvesting Power splitting Unmanned aerial vehicles Cognitive radio Internet of things multi-objective optimization Relay assignment Power allocation

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Ultraviolet humic-like component contributes to riverine dissolved organic matter biodegradation

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Journal of Environmental Sciences 2023年第2期124卷 165-175页

作者： maofei ni Siyue Li College of Eco-Environmental Engineering Guizhou Minzu UniversityGuiyang 550025China Research Center for Environmental Ecology and Engineering School of Environmental Ecology and Biological EngineeringWuhan Institute of TechnologyWuhan 430205China The karst environmental geological hazard prevention laboratory of Guizhou minzu University Guiyang 550025China Key Laboratory of Reservoir Aquatic Environment Research Center for EcohydrologyChongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing 400714China

Biological degradation of dissolved organic matter(DOm)regulates its structure and fate in river *** views suggested that labile components were dominantly consumed by microbial *** we provide new observations that a part of recalcitrant compounds largely contribute to riverine DOm *** excitationemission matrix fluorescent spectroscopy combined with peak picking and parallel factor analysis are used to explore component variability during DOm ***-like and tryptophan-like DOm are the primary components of riverine DOm,with proportion contributions of 39%–82% and 16%–61% for % of the maximumfluorescence intensity,*** 56 days of aerobic incubation in the dark,large amounts of tyrosine-like DOm generation are *** temperature enhances the decomposition of ultraviolet humiclike substance and further stimulates labile DOm bio-mineralization into carbon ***,averaged proportions of amino acid compositions(peak B and T)markedly increase(pmic-like compositions(peak A,m and C)decrease after DOm incubation,suggesting incomplete degradation of refractory DOm from high-molecular to low-molecular weight *** findings support the new notion of the continuous DOm biodegradation in a mode as“steps by steps”,contributing to a new understanding of carbon cycling for the UN Sustainable Development Goal.

关键词： Dissolved organic matter(DOm) Sequential biodegradation Recalcitrant compounds Component and fate Fluorescence analysis

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Bioinformatics Analysis on lncRNA and mRNA Expression Profiles for Novel Biological Features of Valvular Heart Disease with Atrial Fibrillation

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Journal of Electronic Science and Technology 2021年第1期19卷 53-69页

作者： Wei Zeng ni-ni Rao Ke Liu the School of Life Science and Technology University of Electronic Science and Technology of ChinaChengdu 610054 the Guangdong Institute of Electronic Information Engineering University of Electronic Science and Technology of ChinaDongguan 523107 the Department of Sichuan Academy of medical Science Sichuan Provincial People’s HospitalChengdu 610072

The biological features of the valvular heart disease with atrial fibrillation(AF-VHD)remain unknown when involving long non-coding RNAs(lncRNAs).This study performed system analysis on lncRNA and messenger RNA(mRNA)expression profiles constructed by using bioinformatics methods and tools for biological features of *** change and t-test were used to identify differentially expressed(DE)lncRNAs and *** enrichment analysis of DE mRNAs was *** subgroups formed by lncRNAs and nearby mRNAs were screened,and a transcriptional regulation network among lncRNAs,mRNAs,and transcription factors(TFs)was *** interactions between mRNAs related to lncRNAs and drugs were *** 620 AF-VHDrelated DE lncRNAs and 452 DE mRNAs were *** 3 lncRNA subgroups were *** 665 regulations mediated by lncRNAs and TFs were *** 9 mRNAs related to lncRNAs had 1 or more potential drug interactions,totaling 37 *** these,9 drugs targeting 3 genes are already known to be able to control or trigger atrial fibrillation(AF)or other cardiac *** found biological features of AF-VHD provide foundations for further biological experiments to better understand the roles of lncRNAs in development from the valvular heart disease(VHD)to AF-VHD.

关键词： Expression profiles long non-coding RNA(lncRNA) messenger RNA(mRNA) valvular heart disease(VHD) valvular heart disease with atrial fibrillation(AF-VHD).

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Uncertainty propagation analysis by an extended sparse grid technique

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Frontiers of mechanical Engineering 2019年第1期14卷 33-46页

作者： X.Y.JIA C.JIANG C.m.FU B.Y.ni C.S.WANG m.H.PING State Key Laboratory of Advanced Design and manufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan UniversityChangsha 410082China Key Laboratory of Electronic Equipment Structure Design ofministry of Education School of Electro-Mechanical EngineeringXidian UniversityXi'an 710071China

In this paper,an uncertainty propagation analysis method is developed based on an extended sparse grid technique and maximum entropy principle,aiming at improving the solving accuracy of the high-order moments and hence the fitting accuracy of the probability density function(PDF)of the system *** proposed method incorporates the extended Gauss integration into the uncertainty propagation ***,assisted by the Rosenblatt transformation,the various types of extended integration points are transformed into the extended Gauss-Hermite integration points,which makes the method suitable for any type of continuous ***,within the sparse grid numerical integration framework,the statistical moments of the system response are obtained based on the transformed ***,based on the maximum entropy principle,the obtained first four-order statistical moments are used to fit the PDF of the system ***,three numerical examples are investigated to demonstrate the effectiveness of the proposed method,which includes two mathematical problems with explicit expressions and an engineering application with a black-box model.

关键词： uncertainty propagation analysis extended sparse grid maximum entropy principle extended Gauss integration Rosenblatt transformation high-order moments analysis

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Sustained virological response in a predominantly hepatitis C virus genotype 4 infected population

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World Journal of Gastroenterology 2009年第35期15卷 4429-4433页

作者： Yaser Dahlan Hafiz-mughees Ather majid al-ahmadi Faisal Batwa waleed al-hamoudi Departement of medicine King Abdulaziz Medical cityJeddah 21423Saudi Arabia Departement of medicine King Saud UniversityPO Box 2925(59)Riyadh 11461Saudi Arabia

AIm:To assess sustained virological response(SVR) rates in a predominantly hepatitis C virus(HCV) genotype 4 infected population. mETHODS:Between 2003-2007,240 patients who were treated for chronic hepatitis C infection at our center were *** data,viral genotypes,and treatment outcomes were evaluated in all treated *** with chronic renal failure, previous non-responders,and those who relapsed after previous treatment were excluded from the *** all patients,57%were treated with PEG-interferon(IFN)α-2a and 43%patients were treated with PEG-IFNα-2b;both groups received a standard dose of ribavirin. RESULTS:89.6%of patients completed the treatment with an overall SVR rate of 58%.The SVR rate was 54%in genotype 1,44%in genotype 2,73%in genotype 3,and 59%in genotype 4 *** was no statistical difference in the SVR rate between patients treated with PEG-IFNα-2a and PEG-IFNα-2b (61.5%vs 53%).Patients younger than 40 years had higher SVR rates than older patients(75%vs 51%,P =0.001).SVR was also statistically significantly higher when the HCV RNA load(pretreatment)was below 800.000(64%vs 50%,P=0.023),in patients with a body mass index(BmI)less than 28(65%vs 49%,P =0.01),and in patients who completed the treatment duration(64%vs 8%,P≤0.00001).CONCLUSION:The SVR rate in our study is higher than in previous *** with the standard duration of treatment,higher ribavirin dose,younger age,lower BmI,and low pretreatment RNA levels were associated with a higher virological response.

关键词： Hepatitis C virus infection Sustained virological response Genotype 4

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Optimization of Lip Contour Estimation

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Chinese Journal of Electronics 2014年第2期23卷 341-347页

作者： WU Wenchao WANG Shilin KURUOGLU Ercan Engin mA Xiaoli LI Shenghong LI Jianhua Lionel m.ni Department of Computer Science and Engineering Hong Kong University of Science and Technology Fok Ying Tung Research Institute Hong Kong University of Science and Technology School of Information Security Engineering Shanghai Jiao Tong University Georgia Institute of Technology School of Electrical and Computer Engineering Georgia Institute of Technology Institute of Science and Technology of Information (ISTI) Italian National Council of Research (CNR)

Developing algorithms based on lip contour estimation is a distinctive trend in lip segmentation which is the first step of visual speech recognition. In order to establish an optimized estimation of lip contour that is complex enough to describe the principal features of the lip but at the same time simple enough to be implemented,the selection of lip model, estimator as well as parameters for features of lips, including the horizontal length of snake of feature points and horizontal distance between these feature points will be optimized. Experimental result demonstrates that the optimized estimation method of lip contour provides more accurate and more stable results of lip segmentation.

关键词： Lip contour estimation Lip segmentation Weighted least squares estimator Snake

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mechanisms of fibrinolysis resistance and potential targets for thrombolysis in acute ischaemic stroke: lessons from retrieved stroke emboli

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Stroke & Vascular Neurology 2021年第4期6卷 658-667页

作者： waleed Brinjikji Oana madalina mereuta Daying Dai David F Kallmes Luis Savastano Yang Liu Shahid m nimjee Raul G Nogueira mehdi Abbasi Ramanathan Kadirvel Radiology Mayo ClinicRochesterMinnesotaUSA Neurosurgery Mayo ClinicRochesterMinnesotaUSA Neurosurgery Ohio State University Medical CenterColumbusOhioUSA Neurology Emory University School of MedicineAtlantaGeorgiaUSA

There has been growing interest and insight into the histological composition of retrieved stroke *** of the main focuses of the stroke clot analysis literature has been the implications of clot composition on mechanical thrombectomy ***,the holy grail of clot analysis may not be in the field of clot-device interaction,but rather,in understanding mechanisms of fibrinolysis *** mechanisms underlying the low response to fibrinolytic therapy,even with the newer,more powerful agents,remain poorly *** factors such as embolus size,location and collateral status influence alteplase delivery and recanalisation rates;compositional analyses focused on histological and ultrastructural characteristics offer unique insights into mechanisms of alteplase *** this review,we strive to provide comprehensive review of current knowledge on clot composition and ultrastructural analyses that help explain resistance to fibrinolysis.

关键词： fibrin histological resistance

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