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Encoder-Decoder Based LSTM Model to Advance User QoE in 360-Degree Video

Computers, Materials & Continua 2022年第5期71卷 2617-2631页

作者： Muhammad Usman Younus Rabia Shafi Ammar Rafiq Muhammad Rizwan Anjum Sharjeel Afridi Abdul Aleem jamali Zulfiqar Ali Arain Ecole Doctorale Mathematiques InformatiqueTelecommunicationde ToulouseUniversity Paul SabatierToulouse31330France School of Electronics and Information Northwestern Polytechnical UniversityXi’an710129China Department of Computer Science NFC Institute of Engineering and Fertilizer ResearchFaisalabad38000Pakistan Department of Electronic Engineering The Islamia University of BahawalpurBahawalpur63100Pakistan Department of Electrical Engineering Sukkur IBA UniversitySukkur65200Pakistan Department of Electronic Engineering Quaid-e-Awam University of EngineeringScience and Technology(QUEST)Nawabshah67450Pakistan Department of Telecommunication Engineering MUETJamshoro76060Pakistan

The development of multimedia content has resulted in a massiveincrease in network traffic for video streaming. It demands such types ofsolutions that can be addressed to obtain the user’s Quality-of-Experience(QoE). 360-degree videos have already taken up the user’s behavior by ***, the users only focus on the part of 360-degree videos, known as aviewport. Despite the immense hype, 360-degree videos convey a loathsomeside effect about viewport prediction, making viewers feel uncomfortablebecause user viewport needs to be pre-fetched in advance. Ideally, we canminimize the bandwidth consumption if we know what the user motionin advance. Looking into the problem definition, we propose an EncoderDecoder based Long-Short Term Memory (LSTM) model to more accuratelycapture the non-linear relationship between past and future viewport positions. This model takes the transforming data instead of taking the direct inputto predict the future user movement. Then, this prediction model is combinedwith a rate adaptation approach that assigns the bitrates to various tiles for360-degree video frames under a given network capacity. Hence, our proposedwork aims to facilitate improved system performance when QoE parametersare jointly optimized. Some experiments were carried out and compared withexisting work to prove the performance of the proposed model. Last but notleast, the experiments implementation of our proposed work provides highuser’s QoE than its competitors.

关键词： Encoder-decoder based lSTM 360-degree video streaming LSTM QoE viewport prediction

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Experimental investigation of the effects of shrub filter strips on debris flow trapping and interception

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International Journal of Sediment Research 2023年第2期38卷 265-278页

作者： Songtang He Wenle Chen Daojie Wang Xiaoqing Chen Yuchao Qi Peng Zhao Yong Li Yongming Lin Ali Akbar jamali Key Laboratory of Mountain Hazards and Earth Surface Processes Chinese Academy of Sciences Institute of Mountain Hazards and Environment Chinese Academy of Sciences University of Chinese Academy of Sciences Pipe China Southwest Pipeline Company Key Laboratory for Forest Ecosystem Process and Management College of Forestry Fujian Agriculture and Forestry University Department of GIS-RS and Watershed Management Maybod Branch Islamic Azad University

Ecological engineering plays an increasingly significant role in mountain hazard control, but the effect of species selection and arrangement(e.g., row spacing and stem spacing) on debris flow suppression is still unclear. To further understand the interception efficiency of shrub arrangement parameters on debris flow and explore the difference with slow hydraulic erosion, sixteen sets of small-scale flume experiments with different stem and row spacings were done to study the effects of shrubs on debris flow severity, flow rate, velocity, and particle size. The results suggest that, for a dilute debris flow, sediment interception effectiveness(27.4%-60.9%) decreases gradually as stem spacing increases. Moreover, as row spacing increases, flow velocity reduction(34.4%-44.9%) and flow reduction(18.5%-47.4%) gradually decrease; and the bulk density reduction(0.5%-5.3%) and sediment interception increase initially and then decrease. In contrast, for a viscous debris flow, the flow reduction, flow velocity reduction, and sedimentation interception decrease gradually as the stem spacing increases. As row spacing increases,the flow velocity reduction, flow reduction, and sediment interception all increase initially and then decrease. A formula for the flow velocity of dilute debris flow after the filter strip was derived based on the energy conservation law and Bernoulli’s equation, confirming that debris flow movement is closely related to the degree of vegetation cover. This research strengthens the current understanding of the effectiveness of vegetation in debris flow disaster prevention and control and can guide practical applications.

关键词： Ecological engineering Mountain hazards mitigation and prevention Shrub filter strips Debris flow Sediment trapping

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A wavelet packet based method for adaptive single-pole auto-reclosing

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第12期11卷 1016-1024页

作者： Sadegh jamali Navid GHAFFARZADEH Centre of Excellence in Power Systems Automation and Operation Iran University of Science and Technology Tehran Iran

We present a new algorithm for adaptive single-pole auto-reclosing of power transmission lines using wavelet packet transform. The db8 wavelet packet decomposes the faulted phase voltage waveform to obtain the coefficients of the nodes 257, 259 to 262. An index is then defined from the sum of the energy coefficients of these nodes. By evaluating the index, transient and permanent faults, as well as the secondary arc extinction instant, can be identified. The significant advantage of the proposed algorithm is that it does not need a threshold level and therefore its performance is independent of fault location, line parameters, and operating conditions. Moreover, it can be used in transmission lines with reactor compensation. The proposed method has been successfully tested under a variety of fault conditions on a 400 kV overhead line of the Iranian National Grid using the Electro-Magnetic Transient Program (EMTP). The test results validated the algorithm’s ability in distinguishing between transient arcing and permanent faults and determining the instant of secondary arc extinction.

关键词： Adaptive auto-reclosing Arcing faults Permanent faults Transmission lines Wavelet packet transform

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Microstructure and mechanical properties of AA6063 aluminum alloy wire fabricated by friction stir back extrusion(FSBE) process

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International Journal of Minerals,Metallurgy and Materials 2019年第8期26卷 1005-1012页

作者： Ghasem jamali Salman Nourouzi Roohollah Jamaati Department of Materials Engineering Babol Noshirvani University of Technology

In the present work,the friction stir back extrusion(FSBE)process was used as a novel method for the fabrication of AA6063 aluminum alloy *** electron microscopy(SEM)equipped with energy dispersive spectroscopy(EDS),tensile and hardness tests were *** FSBE via the rotational speed of 475 r/min resulted in fine equiaxed grains,and the mean grain size decreased from 179.0μm to 15.5μm due to the occurrence of dynamic recrystallization(DRX).Heat generated by the FSBE changed the size and volume fraction of the Mg2Si precipitated *** minimum particle size and maximum volume fraction obtained in the sample were processed by rotational speeds of 475 and 600 r/min,*** 475-r/min sample had the maximum hardness value due to having the lowest grain size(i.e.,15.5μm)and the presence of many fine Mg2Si precipitates in the aluminum *** increasing rotational speed up to 600 r/min,the hardness decreased,owing to the growth of both grains and *** FSBE process with a rotational speed of 475 r/min increased the tensile strength(from 150 to 209 MPa)and ductility(from 21.0%to 30.2%)simultaneously.

关键词： aluminum alloys friction stir back extrusion microstructure mechanical properties

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The effect of antioxidants on increased oocyte Competence in IVM: a review

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Reproductive and Developmental Medicine 2023年第3期7卷 180-188页

作者： Arezoo Solati Sina Taghvimi Zeinab jamali Farzaneh Vahedi Mostafa Moazamfard Sedigheh Bahmyari Ahmad Movahedpour Hassan Ghasemi Department of Reproductive Biology School of Advanced Medical Sciences and TechnologiesShiraz University of Medical SciencesShirazIran Department of Biology Faculty of ScienceShahid Chamran University of AhvazAhvazIran Department of Medical Genetics School of MedicineTehran University of Medical SciencesTehranIran Department of Medical Biotechnology School of Advanced Medical Sciences and TechnologiesShiraz University of Medical SciencesShirazIran Department of Operating Room Faculty of ParamedicineBehbahan University of Medical SciencesBehbahanIran Behbahan Faculty of Medical Sciences BehbahanIran Abadan University of Medical Sciences AbadanIran.

In vitro maturation(IVM)is considered a potential assisted reproductive technology that is a safer and simpler alternative to conventional in vitro *** is primarily used in patients with impaired oocyte maturation and for the treatment of infertile women who are at risk of fertility *** addition,IVM is currently used mainly in polycystic ovarian syndrome patients with a high ovarian response and is stll considered an experimental option in fertility *** highly competent oocytes during IVM is considered a key step in the success of in vitro production(IVP)of *** factors,such as culture medium conditions and other supplements,have a significant impact on oocyte IVM *** of the known disruptors of oocyte developmental competence in IVP is oxidative stress(Os),which is caused by an imbalance between the production and neutralization of reactive oxygen species(ROS).In vitro conditions induce supraphysiological ROS levels due to exposure to an oxidative environment and the isolation of the oocyte from the follicle protective antioxidant *** the importance of Os in oocyte competence,the establishment of standardized antioxidant IVM systems is critical for improving the overall success of *** review focuses on the main antioxidants tested to protect oocytes against OS in IVM.

关键词： In vitro maturation Oocyte maturation Oxidative stress Free radicals Antioxidant Reactive oxygen species

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Experimental evaluation and modeling of liquid jet penetration to estimate droplet size in a three-phase riser reactor

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Chinese Journal of Chemical Engineering 2016年第2期24卷 293-309页

作者： Ali Akbar jamali Shahrokh Shahhosseini Yaghoub Behjat School of Chemical Engineering Iran University of Science and Technology (IUST) Process Development and Equipment Technology Division Research Institute of Petroleum Industry

In this work,the effects of injecting an evaporating liquid jet into solid–gas flow are experimentally investigated.A new model(SHED model) and a supplementary model(spray model) have also been proposed to investigate some flow-field characteristics in three-phase fluidized bed with the mean relative error 4.3% between model and measured *** experiments were conducted to study the influences of flow-field parameters such as liquid volumetric flow rate,injection velocity,jet angle and gas superficial velocity as well as solid mass flux on the jet penetration depth(JPD).In addition,independent variables were experimentally employed to propose two empirical correlations for JPD by using multiple regression method and spray cone angle(SCA) by using dimensional analysis *** mean relative errors between the JPD and SCA correlations versus experimental data were 7.5% and 3.9%,*** addition,in order to identify the variable effect,a parametric study was carried *** the proposed model can avoid direct use of expensive devices to measure JPD and to predict droplet size.

关键词：射流穿透深度三相流化床实验评价液体射流提升管反应器液滴尺寸模估计喷雾模型

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Electrochemical measurements used for assessment of corrosion and protection of metallic materials in the field:A critical review

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Journal of Materials Science & Technology 2022年第17期112卷 151-183页

作者： Da-Hai Xia Cheng-Man Deng Digby Macdonald Sina jamali Douglas Mills Jing-Li Luo Michael G.Strebl Mehdi Amiri Weixian Jin Shizhe Song Wenbin Hu Tianjin Key Laboratory of Composite and Functional Materials Tianjin 300350China School of Materials Science and Engineering Tianjin UniversityTianjin 300350China Department of Nuclear Engineering University of California at BerkeleyBerkeleyCA 94720USA School of Chemistry The University of New South WalesSydneyNSW 2052Australia School of Science and Technology University of NorthamptonSt.George’s AvenueNorthamptonNN26JDUK Department of Chemical and Materials Engineering University of AlbertaEdmontonAlberta T6G 1H9Canada Department of Materials Science(LKO WW-4)University of Erlangen-Nuremberg91058 ErlangenGermany Department of Mechanical Engineering George Mason UniversityFairfaxVirginia 22030USA Zhoushan Marine Corrosion Institute of Central Research Institute of Iron and Steel Zhoushan316003China

Corrosion degradation is detrimental to metal structures as it shortens their lifetime and leads to huge economic losses and unexpected ***,the detection and monitoring of corrosion degradation is of great ***,we briefly review the state-of-the-art electrochemical methods,instrumentation(based on virtual instrumentation),and advanced sensor/probes that are used in the field for the assessment of corrosion *** corrosion monitoring results,some of which have been obtained at Tianjin University in the past 30 years,for metallic materials and organic coating/metal systems in atmospheric,marine,and soil conditions in the field are *** methods,data analysis,and theoretical and mathematical models regarding each corrosion system are discussed,and the challenges,problems and possible solutions for each case are ***,future developments,such as wireless,intelligent,and automatic electrochemical measurement,that will augment the present electrochemical methods of evaluating corrosion degradation are summarized.

关键词： Corrosion monitoring Electrochemical method Virtual instrumentation Sensor Data analysis In-situ measurement Probe

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Hybrid classifier for fault location in active distribution networks

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Protection and Control of Modern Power Systems 2020年第1期5卷 194-202页

作者： Sadegh jamali Alireza Bahmanyar Siavash Ranjbar Centre of Excellence for Power System Automation and Operation School of Electrical EngineeringIran University of Science and TechnologyP.O.Box:16846-13114TehranIran

This paper presents a fast hybrid fault location method for active distribution networks with distributed generation(DG)and *** method uses the voltage and current data from the measurement points at the main substation,and the connection points of DG and *** data is used in a single feedforward artificial neural network(ANN)to estimate the distances to fault from all the measuring points.A k-nearest neighbors(KNN)classifier then interprets the ANN outputs and estimates a single fault *** results validate the accuracy of the fault location method under different fault conditions including fault types,fault points,and fault *** performance is also validated for non-synchronized measurements and measurement errors.

关键词： Artificial neural networks Distributed generation Distribution networks Fault location K-nearest neighbors

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Review:Proteomic technology for biomarker profiling in cancer: an update

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2006年第6期7卷 411-420页

作者： ALAOUI-jamali Moulay A. Lady Davis Institute for Medical Research and Segal Comprehensive Cancer Center of the Sir Mortimer B. Davis Jewish General Hospital Department of Oncology and Medicine McGill University Montreal Que. H3T 1E2 Canada

The progress in the understanding of cancer progression and early detection has been slow and frustrating due to the complex multifactorial nature and heterogeneity of the cancer syndrome. To date, no effective treatment is available for advanced cancers, which remain a major cause of morbidity and mortality. Clearly, there is urgent need to unravel novel biomarkers for early detection. Most of the functional information of the cancer-associated genes resides in the proteome. The later is an exceptionally complex biological system involving several proteins that function through posttranslational modifications and dynamic inter-molecular collisions with partners. These protein complexes can be regulated by signals emanating from cancer cells, their sur-rounding tissue microenvironment, and/or from the host. Some proteins are secreted and/or cleaved into the extracellular milieu and may represent valuable serum biomarkers for diagnosis purpose. It is estimated that the cancer proteome may include over 1.5 million proteins as a result of posttranslational processing and modifications. Such complexity clearly highlights the need for ultra-high resolution proteomic technology for robust quantitative protein measurements and data acquisition. This review is to update the current research efforts in high-resolution proteomic technology for discovery and monitoring cancer biomarkers.

关键词：生物标志恶性肿瘤诊断研究进展

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Improvement of the thermoelectric efficiency of pyrene-based molecular junction with doping engineering

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Chinese Physics B 2017年第12期26卷 201-209页

作者： Mohammad Farid jamali Meysam Bagheri Tagani Hamid Rahimpour Soleimani Computational Nanophysics Laboratory(CNL) Department of Physics University of Guilan Rasht P. O. Box 41335-1914 Iran

In this study, the thermoelectric properties of pyrene molecule doped with boron and nitrogen atom at different sites of molecule are investigated using density functional theory and none-equilibrium Greens function formalism in the linear response regime. Our calculations show that when the impurities are added to the edge of the molecule, the anti-resonant peaks will appear in the transmission diagram in the vicinity of the Fermi energy level. So it increases the thermoelectric figure of merit of the system in comparison with the one that the impurity is located in the center of molecule. Additionally, the seebeck coefficient signs are not the same among the B, N, and N ＆ B doped devices, indicating that the types of the carriers can be changed with different types of doping.

关键词： thermopower pyrene density functional theory none-equilibrium Green's function method doping

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