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Deep Learning Implemented Visualizing City Cleanliness Level by Garbage Detection

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Intelligent Automation & Soft Computing 2023年第5期36卷 1639-1652页

作者： m.S.Vivekanandan T.Jesudas Anna University Chennai600025Tamil NaduIndia mahendra Engineering College(Autonomous) Namakkal637503Tamil NaduIndia

In an urban city,the daily challenges of managing cleanliness are the primary aspect of routine life,which requires a large number of resources,the manual process of labour,and *** cleaning techniques include street sweepers going away to different metropolitan areas,manually verifying if the street required cleaning taking *** research presents novel street garbage recognizing robotic navigation techniques by detecting the city’s street-level images and multi-level *** the large volume of the process,the deep learning-based methods can be better to achieve a high level of classiﬁca-tion,object detection,and accuracy than other learning *** proposed Histogram of Oriented Gradients(HOG)is used to features extracted while using the deep learning technique to classify the ground-level segmentation process’s *** this paper,we use mobile edge computing to process street images in advance andﬁlter out pictures that meet our needs,which signiﬁcantly affect recognition efﬁ*** measure the urban streets’cleanliness,our street clean-liness assessment approach provides a multi-level assessment model across differ-ent ***,with ground-level segmentation using a deep neural network,a novel navigation strategy is proposed for robotic classiﬁ*** Shot mul-tiBox Detector(SSD)approaches the output space of bounding boxes into a set of default boxes over different feature ratios and scales per attribute map location from the *** SSD can classify and detect the garbage’s accurately and autonomously by using deep learning for garbage *** results show that accurate street garbage detection and navigation can reach approximately the same cleaning effectiveness as traditional methods.

关键词： Smart city deep learning edge computing robotic navigation ground segmentation garbage recognition

Hardy spaces on Lie groups of polynomial growth

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Science China mathematics 2010年第1期53卷 23-40页

作者： ter ELST A F m ROBINSON Derek W Department of mathematics University of Auckland Center for mathematics and its Applications Mathematical Science Institute

We give several characterizations of Hardy spaces associated with complex, second-order,subelliptic operators on Lie groups with polynomial growth.

关键词： Lie groups Hardy spaces heat kernel

Nonlinear properties of quantum dot semiconductor optical amplifiers at 1.3μm

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Chinese Optics Letters 2008年第10期6卷 724-726页

作者： D. Bimberg C. meuer m. Lammlin S. Liebich J. Kim G. Eisenstein A. Kovsh I. Krestnikov Technische Universitat Berlin Innolume GmbH Konrad-Adenauer-Allee 11

The dynamics of nonlinear processes in quantum dot （QD） semiconductor optical amplifiers investigated. Using small-signal measurements, the suitabilities of cross-gain and cross-phase as well as four wave mixing （FWm） for wavelength conversion are examined. The cross-gain is found to be suitable for wavelength conversion up to a frequency of 40 GHz. （SOAs） are modulation modulation

关键词： Cross phase modulation Four wave mixing Optical networks Quantum dots Semiconductor optical amplifiers Wavelength conversion

Process integration of Calcium Looping with industrial plants formonetizing CO_(2) into value-added products

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Carbon Resources Conversion 2018年第2期1卷 191-199页

作者： Pooja Tilak mahmoud m.El-Halwagi Department of Chemical Engineering Texas A&M UniversityCollege StationTX 77843USA Gas and Fuels Research Center Texas A&M Engineering Experiment StationCollege StationTX 77843USA

A Calcium Looping Process(CLP)is an emerging approach for Carbon Capture and Utilization(CCU).It is essentially a CO_(2) capture process that utilizes calcium oxide(CaO)as a sorbent for the removal of CO_(2).A concentrated stream of CO_(2)(96%)that is suitable for storage and reuse is produced in this *** objective of this work is to use mass and energy integration to couple CLP with industrial facilities and power plants in order to enhance industrial symbiosis and reduce cost via the chemical conversion of CO_(2) into value-added *** attention is given to plants that generate large amount of CO_(2) and/or provide excess heat that can be used in driving CLP.A case study is solved to assess the integration of CLP with candidate processes including power plants,cement production,gas-to-liquid(GTL)facility,and chemical plants for the production of ammonia,urea,polymer,methanol and acetic *** solution to the case study shows the merits integrating CLP with processing facilities.

关键词： integration value utilize

Improving time–frequency sparsity for enhanced audio source separation in degenerate unmixing estimation technique algorithm

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Journal of Control and Decision 2022年第4期9卷 502-515页

作者： Shahin m.Abdulla J.Jayakumari Department of Electronics and Communication Engineering Noorul Islam Centre for Higher EducationNagercoilIndia Department of Electronics and Communication Engineering Mar Baselios College of Engineering and TechnologyThiruvananthapuramIndia

In recent years,much research has been focused on separating acoustic sources from their *** Unmixing Estimation Technique(DUET)is one of the widely popular meth-ods of Blind Source Separation(BSS)in underdetermined *** is based on a signal recovery sparsity algorithm whose performance is strongly influenced by sparsity in the Time-Frequency(TF)*** and an several sources in mixtures limit the sparsity resulting in performance degradation in *** an enhanced strategy has been adopted by combin-ing DUET with adaptive noise cancellation utilising the Dual-Tree Complex Wavelet Transform(DTCWT)as a pre-processor and TF refinement utilising Synchroextracting Transform(SET)as a *** improves the sparsity of sources and energy concentrations in a TF *** of the signal separation performance evaluation reveal that the proposed algorithm outperforms conventional DUET in signal separation,especially in real-time scenarios.

关键词： Blind source separation time-frequency dual-tree complex wavelet transform synchroextracting sparsity

Glycine-nitrate auto-combustion synthesis and magnetic properties of nanocrystalline NdAl_(x)Fe_(1-x)O_(3) perovskites

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Journal of Rare Earths 2023年第1期41卷 108-115页

作者： E.A.Nforna HJ.m.Ngantchou J.N.Ghogomu Department of Fundamental Science Higher Technical Teacher Training CollegeUniversity of BamendaP.O.Box 39BambiliCameroon Department of Chemistry Faculty of SciencesUniversity of DoualaP.O.Box 24157DoualaCameroon Department of Chemistry The University of BamendaP.O.Box 39BambiliCameroon Department of Chemistry University of DschangP.O.Box 67DschangCameroon

The effect of substitution of Fe^(3+) by Al^(3+) on the structure and magnetic properties of NdAl_(x)Fe_(1-x)O_(3) perovskite nano-powders(x=0.0,0.1,0.2,0.3,0.4,and 0.5) prepared by the glycine-nitrate auto-combustion method was *** samples were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEm),Fourier transform infrared spectroscopy(FT-IR),and energy dispersive X-ray spectroscopy(EDX).The magnetic properties of the samples were investigated using a vibrating sample magnetometer(VSm).The X-ray results for all samples reveal the formation of an orthorhombic perovskite phase(space group Pbnm) with no secondary *** crystallite sizes of the nanoparticles are found to decrease with increasing Al content,and are in the range of 53-38 *** images show spherical nanoparticles with *** FT-IR spectra confirm the presence of metal oxygen *** m-H loop of the pristine NdFeO_(3) sample is antiferromagnetic in the a b plane with weak ferromagnetism in the *** AI inclusions in the pristine polycrystal thereby creating magnetic vacancies is seen to influence the magnetic *** magnetic dilution results in enhanced magnetisation at low Al content;x=0.1,0.2(saturation magnetisation being 2.08 and 2.05 emu/g,respectively) compared to the pristine sample with a saturation magnetisation of 1.43 emu/g due to increased exchange *** dilution with nonmagnetic dopant induces the phase transition from weak ferromagnetic to paramagnetic depending on the impurity *** coercive field for NdFeO_(3) is found to be equal to 1950 Oe and decreases with *** findings lay a ground work for research in tuning magnetic properties and in spintronics with potential applications in data storage,switches and electronic devices.

关键词： Anti-ferromagnetism Weak ferromagnetism Orthorhombic NdAl_(x)Fe_(1-x)O_(3) Perovskite nanopowders magnetic dilution

A Bit-level Text Compression Scheme Based on the ACW Algorithm

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International Journal of Automation and computing 2010年第1期7卷 123-131页

作者： Hussein Al-Bahadili Shakir m. Hussain Arab Academy for Banking and Financial Sciences Faculty of Information Technology Petra University

This paper presents a description and performance evaluation of a new bit-level, lossless, adaptive, and asymmetric data compression scheme that is based on the adaptive character wordlength （ACW（n）） algorithm. The proposed scheme enhances the compression ratio of the ACW（n） algorithm by dividing the binary sequence into a number of subsequences （s）, each of them satisfying the condition that the number of decimal values （d） of the n-bit length characters is equal to or less than 256. Therefore, the new scheme is referred to as ACW（n, s）, where n is the adaptive character wordlength and s is the number of subsequences. The new scheme was used to compress a number of text files from standard corpora. The obtained results demonstrate that the ACW（n, s） scheme achieves higher compression ratio than many widely used compression algorithms and it achieves a competitive performance compared to state-of-the-art compression tools.

关键词： Data compression bit-level text compression ACW(n) algorithm Huffman coding adaptive coding

modeling and stability analysis of HIV/HTLV-I co-infection

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International Journal of Biomathematics 2021年第5期14卷 97-143页

作者： A.m.Elaiw N.H.AlShamrani Department of mathematics Faculty of Science King Abdulaziz University P.O.Box 80203Jeddah 21589Saudi Arabia Department of mathematics Faculty of Science Al-Azhar UniversityAssiut BranchAssiutEgypt Department of mathematics Faculty of Science University of Jeddah P.O.Box 80327Jeddah 21589Saudi Arabia

Human immunodeficiency virus(HIV)and human T-Iymphotropic virus type I(HTLV-I)are two retroviruses that infect the susceptible CD4^(+)T *** is known that HIV and HTLV-I have in common a way of transmission through direct contact with certain body fluids related to infected ***,it is not surprising that a mono-infected person with one of these viruses can be co-infected with the other *** the literature,a great number of mathematical models has been presented to describe the within-host dynamics of HIV or HTLV-I ***,the within-host dynamics of HIV/HTLV-I co-infection has not been *** this paper,we develop a new within-host HIV/HTLV-I co-infection *** model includes the impact of Cytotoxic T lymphocytes(CTLs)immune response,which is important to control the progression of viral *** model describes the interaction between susceptible CD4^(+)T cells,silent HIV-infected cells,active HIV-infected cells,silent HTLV-infected cells,Tax-expressing HTLV-infected cells,free HIV particles,HIV-specific CTLs and HTLV-specific *** first show the nonnegativity and boundedness of the model’s solutions and then we calculate all possible *** derive the threshold parameters which govern the existence and stability of all equilibria of the *** prove the global asymptotic stability of all equilibria by utilizing Lyapunov function and LaSalle’s invariance *** have presented numerical simulations to illustrate the effectiveness of our main *** addition,we discuss the effect of HTLV-I infection on the HIV-infected patients and vice versa.

关键词： HIV/HTLV-I co-infection global stability CTL-mediated immune response Lyapunov function

Usefulness of endoscopic ultrasound-guided fine needle aspiration in the diagnosis of hepatic, gallbladder and biliary tract Lesions

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World Journal of Gastrointestinal Oncology 2014年第11期6卷 420-429页

作者： Ghassan m Hammoud Ashraf Almashhrawi Jamal A Ibdah Division of Gastroenterology and Hepatology University of Mis-souri Columbia MO 65212 United States

Endoscopic ultrasound(EUS)-guided fine needle aspira-tion(FNA) of the liver is a safe procedure in the diag-nosis and staging of hepatobiliary malignancies with a minimal major complication rate. EUS-FNA is useful for liver lesions poorly accessible to other imaging modali-ties of the liver. EUS-guided FNA of biliary neoplasia and malignant biliary stricture is superior to the con-ventional endoscopic brushing and biopsy.

关键词： Endoscopic ultrasound Fine needle aspira-tion Hepatocellular carcinoma Bile duct stricture Gall-bladder Cholangiocarcinoma Biliary drainage