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Adaptive green traffic signal controlling using vehicular communication

Frontiers of Information Technology & Electronic Engineering 2017年第3期18卷 373-393页

作者： Erfan SHAGHAGHI Mohammad Reza jABBARPOUR Rafidah md NOOR Hwasoo YEO jason j.jUNG Department of Computer Systems and Technology University of Malaya Department of Computer Engineering Islamic Azad UniversityNorth Tehran Branch Department of Civil and Environmental Engineering Korea Advanced Institute of Science and Technology Department of Computer Engineering Chung-Ang University

The importance of using adaptive traffic signal control for figuring out the unpredictable traffic congestion in today's metropolitan life cannot be overemphasized. The vehicular ad hoc network(VANET), as an integral component of intelligent transportation systems(ITSs), is a new potent technology that has recently gained the attention of academics to replace traditional instruments for providing information for adaptive traffic signal controlling systems(TSCSs). Meanwhile, the suggestions of VANET-based TSCS approaches have some weaknesses:(1) imperfect compatibility of signal timing algorithms with the obtained VANET-based data types, and(2) inefficient process of gathering and transmitting vehicle density information from the perspective of network quality of service(Qo S). This paper proposes an approach that reduces the aforementioned problems and improves the performance of TSCS by decreasing the vehicle waiting time, and subsequently their pollutant emissions at intersections. To achieve these goals, a combination of vehicle-to-vehicle(V2V) and vehicle-to-infrastructure(V2I) communications is used. The V2 V communication scheme incorporates the procedure of density calculation of vehicles in clusters, and V2 I communication is employed to transfer the computed density information and prioritized movements information to the road side traffic controller. The main traffic input for applying traffic assessment in this approach is the queue length of vehicle clusters at the intersections. The proposed approach is compared with one of the popular VANET-based related approaches called MC-DRIVE in addition to the traditional simple adaptive TSCS that uses the Webster method. The evaluation results show the superiority of the proposed approach based on both traffic and network Qo S criteria.

关键词： Vehicular ad hoc network(VANET) Intelligent transportation systems(ITSs) Clustering Adaptive traffic signal control Traffic controller Fuel consumption

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Melting and second order slip effect on convective flow of nanofluid past a radiating stretching/shrinking sheet

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Propulsion and Power Research 2018年第1期7卷 60-71页

作者： M.j.Uddin W.A.Khan A.I.md.Ismail American International University-Bangladesh BananiDhaka 1213Bangladesh PN Engineering College PNS JauharNational University of Sciences and TechnologyHabib Ibrahim Rehmatullah RoadKarsazKarachiPakistan School of Mathematical Sciences Universiti Sains MalaysiaPenang 11800Malaysia

A mathematical model is presented for forced convective slip flow of a nanofluid past a radiating stretching/shrinking *** boundary condition is taken into *** nanofluid model involves the Brownian motion and thermophoresis *** group transformation is used to the transport equations as well as the boundary conditions to develop the similarity equations,before being solved numerically using the Runge-Kutta-Fehlberg fourth-fifth order numerical *** show the effects of the controlling parameters on the dimensionless velocity,temperature,nanoparticle volume fraction,skin friction factor,local Nusselt,and local Sherwood numbers,numerical results are presented both in graphical and tabular *** is found that the friction factor decreases with slip and melting parameters for both stretching/shrinking *** is also found that the Nusselt number decreases with the first order slip while it increases with melting and radiation parameters in both ***,the Sherwood number decreases with the melting parameter both for radiating and non-radiating stretching/shrinking *** excellent agreement is found between the present numerical results and published results.

关键词： Nanofluid Melting effect Lie group Thermal radiation Slip boundary condition

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A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration

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High Power Laser Science and Engineering 2024年第02期 91-98页

作者： j.Pe?as A.Bembibre D.Cortina-Gil L.Martín A.Reija C.Ruiz M.Seimetz A.Alejo j.Benlliure Instituto Galego de Física de Altas Enerxías Universidade de Santiago de Compostela Laboratorio Láser de Aceleración y Aplicaciones RIAIDT Universidade de Santiago de Compostela Instituto Universitario de Física Fundamental y Matemáticas y Dpto.de Didáctica de la Matemática y de las Ciencias Experimentales Universidad de Salamanca Instituto de Instrumentación para Imagen Molecular (I3M) CSIC-Universitat Politècnica de València

A multi-shot target assembly and automatic alignment procedure for laser–plasma proton acceleration at high repetition rate are introduced. The assembly is based on a multi-target rotating wheel capable of hosting more than 5000 targets,mounted on a 3D motorized stage to allow rapid replenishment and alignment of the target material between laser irradiations. The automatic alignment procedure consists of a detailed mapping of the impact positions at the target surface prior to the irradiation that ensures stable operation of the target, which alongside the purpose-built design of the target wheel, enables operation at rates up to 10 Hz. Stable and continuous laser-driven proton acceleration at 10 Hz is demonstrated, with observed cut-off energy stability about 15%.

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Chemically and biologically activated biochars slow down urea hydrolysis and improve nitrogen use efficiency

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Pedosphere 2023年第4期33卷 659-669页

作者： Nazmul H.ANTOR Shamim MIA md.M.HASAN Nowrose j.LIPI Keiji jINDO Miguel A.SANCHEZ-MONEDERO md.H.RASHID Department of Agronomy Patuakhali Science and Technology UniversityDumkiPatuakhali 8602(Bangladesh) Agrosystems Research Groups Wageningen University and ResearchWageningen 6700 AA(The Netherlands) Department of Soil and Water Conservation and Organic Waste Management Spanish National Research Council(CEBAS-CSIC)Murcia 30100(Spain)

Biochar is considered a potential technology to enhance chemical fertilizer use efficiency through intensification of the interactions between nutrients and the functional groups on biochar ***,little is known about how the application of activated biochars mixed with urea influences nitrogen(N)mineralization and crop performance in paddy ***,a sawdust-derived fresh biochar(FBC)(ca.400℃)was activated chemically with 15%hydrogen peroxide and biologically with a nutrient solution mixed with a soil inoculum to obtain a chemically activated biochar(CBC)and a biologically activated biochar(BBC),*** chemical and surface properties of FBC,CBC,and BBC were evaluated using spectroscopic methods,i.e.,Fourier transform infrared spectroscopy and 13C nuclear magnetic resonance,and potentiometric charge *** N retention capacity of biochars and their interaction with urea hydrolysis were examined in a laboratory incubation ***,a field experiment was carried out in a paddy field with the biochars unmixed or mixed with urea at a 1:1 *** results showed that negative surface functional groups and negative charges were increased on both activated biochars,especially *** activated biochars contributed to a significant reduction in urea-biochar suspension pH and increased N retention in the incubation *** the enhanced surface properties of the activated biochars,no similar increases in rice biomass and grain yield were observed for these biochars in the field ***,rice biomass,grain yield,apparent N use efficiency,and agronomic N use efficiency were significantly higher with the application of the three biochars compared to no-biochar ***,the results indicate that the application of urea mixed with biochar could enhance crop performance,especially in the case of activated biochar,which would enhance N retention in the soil,reducing N loss.

关键词： chemical property crop yield functionalized biochar nitrogen uptake nutrient use efficiency pyrolysis

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The Practice of Physical Medicine and Rehabilitation in subSaharan Africa and Antarctica：A White Paper or a Black Mark？

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中国康复医学杂志 2009年第5期24卷 385-389页

作者： Andrew j. Haig md jonathan Im Ayodeji Adewole, md Virgina S. Nelson, md, M.P.H Brian Krabak, md, M.B.A. Department of Physical Medicine and Rehabilitation University of Michigan Ann Arbor Michigan USA. College of Liberal Arts and Sciences Wayne State University Detroit Michigan USA. SOS International Accra Ghana. Department of Physical Medicine and Rehabilitation University of Michigan Ann Arbor Michigan USA. Department of Rehabilitation Medicine University of WashingtonSeattle Washington USA.

Objective:To explore the practice of PM&R in subSaharan Africa and ***:Medline searches,membership data searches,fax survey of medical schools,Internet searches,and interviews with ***:The continents are dissimilar in terms of climate and *** both Antarctica and subSaharan Africa have no PM&R training programs,no professional organizations,no specialty board requirements,and no practicing physicians in the *** there is no known disabled child on Antarctica and adults are airlifted to world-class health care,the consequences of this deficit are minimal *** the 788,000,000 permanent residents of subSaharan Africa including approximately 78 million persons with disability are left ***:Antarctica is doing *** is in a *** medical schools,hospitals doctors,and persons with disability;along with foreign volunteers,aid groups,and policymakers can impact the *** government-specifically national ministries of health-is ultimately responsible for the health and wellbeing of citizens.

关键词：体格检查医学文献资料因特网

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Design　Issues　for　Use　of　Solid　State　Transmitter　Radars　in　the　Terminal　Airspace

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journal of Systems Engineering and Electronics 1995年第1期6卷 57-64页

作者： E. Lee Cole & Lawrence j. Friz(Westinghouse Electric Corporation, Baltimore, md, USA) Westinghouse Electric Corporation Baltimore MD USA

Abstract

关键词： Design Use Issues Airspace

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Characterizing pressure fluctuation into single-loop oscillating heat pipe

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journal of Central South University 2012年第9期19卷 2578-2583页

作者： PARK Yong-ho md.Riyad Tanshen md.j.Nine CHUNG Han-shik jEONG Hyo-min Department of Mechanical Engineering Koje CollegeJangseungpoKojeGyeongnamKorea Department of Mechanical and Precision Engineering Gyeongsang National University 445 Inpyeong-dongTongyeongGyeongnam650-160Korea Department of Energy and Mechanical Engineering Institute of Marine IndustryGyeongsang National UniversityCheondaegukchi-Gil 38TongyeongGyeongnam650-160Korea

The pressure characteristics inside single loop oscillating heat pipe （OHP） having 4.5 mm inner diameter copper tube with the loop height of 440 mm were addressed. Distilled water was used as working fluid inside the OHP with different filling ratios of 40%, 60% and 80% of total inside volume. Experimental results show that the thermal characteristics are significantly inter-related with pressure fluctuations as well as pressure frequency. And the pressure frequency also depends upon the evaporator temperature that is maintained in the range of 60-96 ℃. Piezoresistive absolute pressure sensor （Model-Kistler 4045A5） was used to take data. The investigation shows that the filling ratio of 60% gives the highest inside pressure magnitude at maximum number of pressure frequency at any of set evaporator temperature and the lowest heat flow resistance is achieved at 60% filling ratio.

关键词： oscillating heat pipe pressure fluctuation heat flow resistance filling ratio

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Harnessing LSTM Classifier to Suggest Nutrition Diet for Cancer Patients

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Intelligent Automation & Soft Computing 2023年第2期35卷 2171-2187页

作者： S.Raguvaran S.Anandamurugan A.M.j.md.Zubair Rahman Department of Computer Science and Engineering Al-Ameen Engineering CollegeErode638115India Department of Information and Technology Kongu Engineering CollegeErode638060India Al-Ameen Engineering College Erode638115India

A customized nutrition-rich diet plan is of utmost importance for cancer patients to intake healthy and nutritious foods that help them to be strong enough to maintain their body weight and body *** nutrition-rich diet foods will prevent them from the side effects caused before and after treatment thereby minimizing *** work is proposed here to provide them with an effec-tive diet assessment plan using deep learning-based automated medical diet ***,an Enhanced Long-Short Term Memory(E-LSTM)has been proposed in this paper,especially for cancer *** proposed method will be very useful for cancer patients as this would help them predict the foods which can be consumed by them based on the nutrition analysis of food *** classiﬁcation will be performed in E-LSTM by analyzing the two datasets,one with food images and another with cancer patients’*** an in-depth analysis of the major research papers concerning deep learning strategies to iden-tify the foods along with their nutrition composition,this method has been iden-tiﬁed as one of theﬁnest deep learning approaches that are used for classiﬁcation *** work has been identiﬁed as theﬁrst work producing a new layer for feature extraction and providing nutrition suggestions,especially for cancer patients using the LSTM *** accuracy of prediction and classiﬁcation will be improved by the dedicated layer for feature extraction in ***,it is proved that this proposed method outperforms all other existing techniques in terms of F1 Score,Precision,Recall,Classiﬁcation accuracy,Training loss and Validation loss.

关键词： Classiﬁcation diet assessment enhanced long short term memory nutrition suggestion

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Solution processed high performance perovskite quantum dots/ZnO phototransistors

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Nano Research 2022年第4期15卷 3660-3666页

作者： md Mehedi Hasan Eric Moyen jewel Kumer Saha md Mobaidul Islam Arqum Ali jin jang Advanced Display Research Center(ADRC) Department of Information DisplayKyung Hee University26Kyungheedae-roDongdaemun-guSeoul 02447Republic of Korea

Phototransistors that can detect visible light have been fabricated using solution processed zinc oxide channel/zirconium oxide gate insulator thin film transistors(TFTs)and room temperature synthesized perovskite quantum dots(PeQDs)as active *** ZnO thin film transistors did not show a photocurrent under visible light ***,ZnO TFTs decorated with PeQDs exhibited enhanced photocurrent upon exposure to visible *** device had a responsivity of 567 A/W(617 A/W),a high detectivity of 6.59×10^(13)jones(1.85×10^(14)j.and a high sensitivity of 10^(7)(10^(8))under green(blue)light at a low drain voltage of 0.1 *** high photo-responsivity and detectivity under green light resulted from the combination of short ligands in the QDs films and the high mobility of the spray coated ZnO *** results are relevant for the development of low cost and low energy consumption phototransistors working in the visible range.

关键词： ZnO thin film transistors perovskite quantum dots photo-detectors photo-transistors

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Numerical solution of thermo-solutal mixed convective slip flow from a radiative plate with convective boundary condition

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journal of Hydrodynamics 2016年第3期28卷 451-461页

作者： m.j.uddin o.anwar bég m.n.uddin a.i.md.ismail Department of Mathematics American International University-BangladeshDhakaBangladesh Fluid Mechanics Spray Research GroupPetroleum and Gas Engineering DivisionRoom G77Newton BuildingSchool of ComputingScience and Engineering(CSE)University of SalfordM54WTUK Department of Mathematical Sciences Ball State University2000 W University AvenueMuncieIN 47306USA School of Mathematical Sciences Universiti Sains MalaysiaPenang 11800Malaysia

A mathematical model for mixed convective slip flow with heat and mass transfer in the presence of thermal radiation is presented. A convective boundary condition is included and slip is simulated via the hydrodynamic slip parameter. Heat generation and absorption effects are also incorporated. The Rosseland diffusion flux model is employed. The governing partial differential conservation equations are reduced to a system of coupled, ordinary differential equations via Lie group theory method. The resulting coupled equations are solved using shooting method. The influences of the emerging parameters on dimensionless velocity, tempera- ture and concentration distributions are investigated. Increasing radiative-conductive parameter accelerates the boundary layer flow and increases temperature whereas it depresses concentration. An elevation in convection-conduction parameter also accelerates the flow and temperatures whereas it reduces concentrations. Velocity near the wall is considerably boosted with increasing momentum slip parameter although both temperature and concentration boundary layer thicknesses are decreased. The presence of a heat source is found to increase momentum and thermal boundary layer thicknesses but reduces concentration boundary layer thickness. Excelle- nt correlation of the numerical solutions with previous non-slip studies is demonstrated. The current study has applications in bio- reactor diffusion flows and high-temperature chemical materials processing systems.

关键词： slip flow thermal radiation lie group theory heat source/sink materials processing

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