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HELP-WSn-A novel Adaptive Multi-Tier Hybrid Intelligent Framework for QoS Aware WSn-IoT networks

Computers, Materials & Continua 2022年第5期71卷 2107-2123页

作者： j.Sampathkumar n.Malmurugan Mahendra College of Engineering Salem636106India

Wireless Sensor network is considered as the intermediate layer in the paradigm of Internet of things(IoT)and its effectiveness depends on the mode of deployment without sacrificing the performance and energy *** provides ubiquitous access to location,the status of different entities of the environment and data acquisition for long term IoT *** the high performance of the WSn-IoT network remains to be a real challenge since the deployment of these networks in the large area consumes more power which in turn degrades the performance of the ***,developing the robust and QoS(quality of services)aware energy-efficient routing protocol for WSn assisted IoT devices needs its brighter light of research to enhance the network *** paper proposed a Hybrid Energy Efficient Learning Protocol(HELP).The proposed protocol leverages the multi-tier adaptive framework to minimize energy *** works in a two-tier mechanism in which it integrates the powerful Extreme Learning Machines for clustering framework and employs the zonal based optimization technique which works on hybrid Whale-dragonfly algorithms to achieve high QoS *** proposed framework uses the sub-area division algorithm to divide the network area into different *** learning machines(ELM)which are employed in this framework categories the Zone’s Cluster Head(ZCH)based on distance and *** categorizing the zone’s cluster head,the optimal routing path for an energy-efficient data transfer will be selected based on the new hybrid whale-swarm *** extensive simulations were carried out using OMnET++-Python userdefined plugins by injecting the dynamic mobility models in networks to make it a more realistic ***,the effectiveness of the proposed HELP is examined against the existing protocols such as LEACH,M-LEACH,SEP,EACRP and SEEP and results show the proposed framework has outperformed other techniques in terms

关键词： Internet of things extreme learning machines zones’cluster head hybrid whale-swarm

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Modified Visual Geometric Group Architecture for MRI Brain Image Classification

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Computer Systems Science & Engineering 2022年第8期42卷 825-835页

作者： n.Veni j.Manjula Department of Electronics and Communication Engineering SRM Institute of Science and TechnologyChennaiTamil NaduIndia Department of Electronics and Communication Engineering SRM Institute of Science and TechnologyChennaiIndia

The advancement of automated medical diagnosis in biomedical engineering has become an important area of *** classification is one of the diagnostic approaches that do not require segmentation which can draw quicker *** proposed non-invasive diagnostic support system in this study is considered as an image classification system where the given brain image is classified as normal or *** ability of deep learning allows a single model for feature extraction as well as classification whereas the rational models require separate *** of the best models for image localization and classification is the Visual Geometric Group(VGG)*** this study,an efficient modified VGG architecture for brain image classification is developed using transfer *** pooling layer is modified to enhance the classification capability of VGG *** show that the modified VGG architecture outperforms the conventional VGG architecture with a 5%improvement in classification accuracy using 16 layers on MRI images of the REpository of Molecular BRAin neoplasia DaTa(REMBRAnDT)database.

关键词： MRI brain images image classification deep learning VGG architecture pooling layers

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多孔介质孔隙结构模型及其在渗流分析中的应用

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太原理工大学学报 2022年第3期53卷 360-370页

作者：胡黎明林丹彤张鹏伟张兴昊郭豪豪 jay n meegoda 董晓强清华大学水利水电工程系水沙科学与水利水电工程国家重点实验室北京100084 北京交通大学土木建筑工程学院北京100044 新泽西理工学院土木与环境工程系美国新泽西07102 太原理工大学土木工程学院太原030024

对目前常用的孔隙结构模型进行了总结,将目前常用的模型分为孔隙重构模型、孔隙网络模型、等效孔隙网络模型3个类别,对上述3种模型的概念、建立方法以及在渗流分析方面的应用进行了介绍。从孔隙重构模型到孔隙网络模型再到等效孔隙网络... 详细信息

对目前常用的孔隙结构模型进行了总结,将目前常用的模型分为孔隙重构模型、孔隙网络模型、等效孔隙网络模型3个类别,对上述3种模型的概念、建立方法以及在渗流分析方面的应用进行了介绍。从孔隙重构模型到孔隙网络模型再到等效孔隙网络模型,其对多孔介质孔隙结构的描述由真实性向等效性发展,而其计算效率则显著提高。基于孔隙结构模型已有研究针对渗流过程展开了大量的计算分析工作,研究表明孔隙结构模型能够较好反映多孔介质孔隙结构对渗流过程的影响,揭示渗流和物质输移过程孔隙尺度物理机理,在环境岩土工程及能源岩土工程等多个领域具有广泛的应用前景。未来孔隙结构模型研究将集中于基于孔隙结构模型建立宏微观行为的联系、基于孔隙结构统计参数建立更具普适意义的模型等方面。

关键词：多孔介质孔隙结构模型等效孔隙网络模型渗流溶质运移胶体运移

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Site Selective Excitation and Energy Transfer in LiKGdF_5 Crystal Co-doped with Er^(3+) and Tb (3+)

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journal of Rare Earths 2004年第1期22卷 22-26页

作者：尹民 Khaidukov n M Krupa j C Structure Research Laboratory Kurnakov Institute of General and Inorganic Chemistry Institut de Physique nucléaire

Crystals of LiKGdF 5∶Er 3+, Tb 3+ grown by the hydrothermal synthesis technique with concentrations of 2% and 0.4% were analysed. By using site selective excitation measured at low temperature, luminescence and excitation spectra from Er 3+ and Tb 3+ ions embedded in LiKGdF 5 were clearly separated. The lifetimes of the emitting levels 4S 3/2 of Er 3+ and 5D 4 of Tb 3+ were also determined. Following the site selective spectroscopy study, the dominant energy transfer process from Tb 3+ to Er 3+ in the crystal was then investigated via transient experiments.

关键词： optics condensed matter physics energy transfer luminescence LiKGdF 5∶Er3+, Tb3+ rare earths

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Two-stage precipitation process of iron and arsenic from acid leaching solutions

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中国有色金属学会会刊：英文版 2008年第6期18卷 1513-1517页

作者： n. j. BOLIn j. E. SUnDKVIST Boliden Mineral AB SE-936 81 Boliden SWEDEN

为贱金属恢复的沥滤的进程经常产生象铁和砷那样的杂质的可观的数量进解决方案。为最后的处理把非珍贵的金属分开成可管理、稳定的废物产品是挑战，没有松开珍贵成分。Boliden 矿物质 AB 获给很干净的铁砷的一个二阶段的降水过程专利由... 详细信息

为贱金属恢复的沥滤的进程经常产生象铁和砷那样的杂质的可观的数量进解决方案。为最后的处理把非珍贵的金属分开成可管理、稳定的废物产品是挑战，没有松开珍贵成分。Boliden 矿物质 AB 获给很干净的铁砷的一个二阶段的降水过程专利由贱金属的最少一起沉淀猛抛。有好沉积和过滤性质的获得的产品表演，它使恢复铁砷容易弄空由过滤的答案并且 precipitate 洗。键盘乐器的低音部凳子规模测试被做了，显示出二阶段的降水过程完成的优秀结果。

关键词：提取生物浸取沉淀铁

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Study of the dinuclear system for^(296)119 superheavy compound nucleus in fusion reactions

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Chinese Physics C 2021年第4期45卷 325-334页

作者： j.Mohammadi O.n.Ghodsi Department of Physics Faculty of ScienceUniversity of MazandaranP.O.Box 47415-416BabolsarIran

This investigation aims to find an appropriate dinuclear system for the formation of^(296)119 superheavy compound *** studying the driving potential and measuring the capture cross section of the reactions,the evolution of the dinuclear system can be *** this study,we obtained capture,fusion,and evaporation residue cross sections and survival probability at energies near the Coulomb barrier for four reactions,namely ^(45)Sc+^(251)Cf,^(42)Ca+^(254)Es,^(39)K+^(297)Fm,and ^(38)Ar+^(258)*** caleulations show that the reaction 38Ar+258 Md is a suitable choice for the formation of an element with 119 protons among the studied reactions from a the-oretical viewpoint.

关键词： dinuclear system cross section fusion reaction superheavy elements

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Magnetically propelled Carreau fluid flow over penetrable sensor surface influenced by thermal radiation,joule heating and heat generation

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Communications in Theoretical Physics 2022年第2期74卷 9-18页

作者： B j Gireesha B nagaraja n Srikantha n G Rudraswamy A Felicita Department of Studies and Research in Mathematics Kuvempu UniversityShankaraghattaShivamoggaKarnatakaIndia Department of Mathematics MS Ramaiah Institute of TechnologyBangaloreIndia Department of Mathematics P.C.Jabin Science College(Autonomous)HubballiIndia

This examination emphasizes the analysis of thermal transmission of Carreau fluid flow on a permeable sensor surface equipped with radiation,joule heating,an internal heat source,and a magnetic *** the above effects and assumptions,the equations that administer the flow are formulated.A configured system of equations is productively reduced to a system of ordinary differential *** reduced system is then dealt with using the Runge–Kutta-Fehlberg fourth–fifth order tool equipped by the shooting *** numerical solutions are utilized to plot graphs and *** conclusion of the study outlines some important findings such as the power law index,the thermal radiation parameter and the heat source parameter enhance the thermal panel whereas the Weissenberg number deescalates the *** power law index and permeable velocity decrease the velocity panel *** representation of streamlines of the flow has been given to strengthen the study.A detailed description has been produced about the results obtained in the study.

关键词： sensor surface Carreau fluid squeezed flow thermal radiation heat generation

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3D printing of patient-specific 316L–stainless–steel medical implants using fused filament fabrication technology: two veterinary case studies

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Bio-Design and Manufacturing 2022年第4期5卷 808-815页

作者： j.M.Chacón P.j.n.ñez M.A.Caminero E.García-Plaza j.Vallejo M.Blanco Escuela Técnica Superior de Ingeniería Industrial Universidad de Castilla-La ManchaAvdaCamilo JoséCela213071 Ciudad RealSpain Protresde Ingeniería y Soluciones C/Solana 60nave 313005 Ciudad RealSpain

Biomedical fracture fixation implants have complex sculptured geometries to adapt perfectly to fractured bones,making them difficult and expensive to manufacture with conventional machining methods. Fused filament fabrication(FFF) is a very popular Additive Manufacturing technology that simplifies the manufacture of parts with complex geometries, making it ideal for the manufacture of customized medical implants.

关键词： steel fracture fused

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Combustion synthesis of Ce^(3+), Eu^(3+) and Dy^(3+) activated naCaPO_4 phosphors

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journal of Rare Earths 2011年第6期29卷 527-535页

作者： K n Shinde S j Dhoble Animesh Kumar Department of Physics RTM Nagpur University national Environmental Engineering Research Institute

The preparation of naCaPO4 doped with rare earth （RE） ions Ce3＋, Eu3＋ and Dy3＋ by combustion method was described. Under UV excitation （251 nm） of naCaPO4：Ce3＋ showsd emission （367 nm） in UV range. When naCaPO4：Dy3＋ phosphor was excited at 349 nm, the emission spectrum showed intense bands at 482 nm （blue） and 576 nm （yellow）. In Eu activated naCaPO4 phosphor, the emission spectrum showed a dominant peak at 594 nm （orange） while others were at 614 and 621 nm （red） when excited at 393 nm. The prepared phosphor was characterized by X-ray diffraction （XRD）, scanning electron microscope （SEM） and photoluminescence （PL） measurement. Thus, the photoluminescence behavior of naCaPO4：Ce3＋ was strongly suggested for scintillator. Likewise, Eu3＋ and Dy3＋ activated naCaPO4 phosphors were recommended for near-UV white light-emitting diodes （LEDs）.

关键词： combustion synthesis photoluminescence phosphor scintillator solid state lighting rare earths

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Effect of papaya seed extract on microenvironment of cauda epididymis

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Asian journal of Andrology 2001年第2期3卷 143-146页

作者： R.j.Verma n.j.Chinoy Department of Zoology University School of Sciences Gujarat University Ahmedabad 380009 IndiaDepartment of Zoology University School of Sciences Gujarat University Ahmedabad 380009 India

Aim: To evaluate the effect of aqueous Carica papaya seed extract on microenvironment of cauda ***: Adult male albino rats were intramuscularly administered with 0 (control) or 0.5 mg papaya seed ex-tract/kg body weight for 7 days. Cauda epididymal tubular content was collected by micropuncture technique; epididy-mal luminal fluid and sperm pellets were separately analyzed. Results: The results revealed that the extract treat-ment caused significant reduction, as compared with control, in total protein and sialic acid contents in both epididymalfluid and sperm pellet. As compared with control, significantly lowered acid phosphatase activity was recorded in spermpellet but was higher in epididymal fluid after the treatment. The extract treatment also caused significant reduction inlevel of inorganic phosphorus in the epididymal fluid. Conclusion: It is concluded that the aqueous papaya seed ex-tract alters cauda epididymal microenvironment.

关键词： Carica papaya microenvironment epididymis spermatozoa protein sialic acid

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