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phonon coupling</title> <meta name="description" content="Search results for: electron phonon coupling"> <meta name="keywords" content="electron phonon coupling"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="electron phonon coupling"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 3201</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: electron phonon coupling</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3201</span> Temperature-Dependent Structural Characterization of Type-II Dirac Semi-Metal nite₂ From Bulk to Exfoliated Thin Flakes Using Raman Spectroscopy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Minna%20Theres%20James">Minna Theres James</a>, <a href="https://publications.waset.org/abstracts/search?q=Nirmal%20K%20Sebastian"> Nirmal K Sebastian</a>, <a href="https://publications.waset.org/abstracts/search?q=Shoubhik%20Mandal"> Shoubhik Mandal</a>, <a href="https://publications.waset.org/abstracts/search?q=Pramita%20Mishra"> Pramita Mishra</a>, <a href="https://publications.waset.org/abstracts/search?q=R%20Ganesan"> R Ganesan</a>, <a href="https://publications.waset.org/abstracts/search?q=P%20S%20Anil%20Kumar"> P S Anil Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We report the temperature-dependent evolution of Raman spectra of type-II Dirac semimetal (DSM) NiTe2 (001) in the form of bulk single crystal and a nanoflake (200 nm thick) for the first time. A physical model that can quantitatively explain the evolution of out of plane A1g and in-plane E1g Raman modes is used. The non-linear variation of peak positions of the Raman modes with temperature is explained by anharmonic three-phonon and four-phonon processes along with thermal expansion of the lattice. We also observe prominent effect of electron-phonon coupling from the variation of FWHM of the peaks with temperature, indicating the metallicity of the samples. Raman mode E1 1g corresponding to an in plane vibration disappears on decreasing the thickness from bulk to nanoflake. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=raman%20spectroscopy" title="raman spectroscopy">raman spectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=type%202%20dirac%20semimetal" title=" type 2 dirac semimetal"> type 2 dirac semimetal</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20telluride" title=" nickel telluride"> nickel telluride</a>, <a href="https://publications.waset.org/abstracts/search?q=phonon-phonon%20coupling" title=" phonon-phonon coupling"> phonon-phonon coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20phonon%20coupling" title=" electron phonon coupling"> electron phonon coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=transition%20metal%20dichalcogonide" title=" transition metal dichalcogonide"> transition metal dichalcogonide</a> </p> <a href="https://publications.waset.org/abstracts/148958/temperature-dependent-structural-characterization-of-type-ii-dirac-semi-metal-nite2-from-bulk-to-exfoliated-thin-flakes-using-raman-spectroscopy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148958.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">115</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3200</span> Hall Coefficient in the Presence of Strong Electromagnetic Waves Caused by Confined Electrons and Phonons in a Rectangular Quantum Wire</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nguyen%20Quang%20Bau">Nguyen Quang Bau</a>, <a href="https://publications.waset.org/abstracts/search?q=Nguyen%20Thu%20Huong"> Nguyen Thu Huong</a>, <a href="https://publications.waset.org/abstracts/search?q=Dang%20Thi%20Thanh%20Thuy"> Dang Thi Thanh Thuy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The analytic expression for the Hall Coefficient (HC) caused by the confined electrons in the presence of a strong electromagnetic wave (EMW) including the effect of phonon confinement in rectangular quantum wires (RQWs) is calculated by using the quantum kinetic equation for electrons in the case of electron - optical phonon scattering. It is because the expression of the HC for the confined phonon case contains indexes m, m’ which are specific to the phonon confinement. The expression in a RQW is different from that for the case of unconfined phonons in a RQW or in 2D. The results are numerically calculated and discussed for a GaAs/GaAsAl RQW. The numerical results show that HC in a RQW can have both negative and positive values. This is different from the case of the absence of EMW and the case presence of EMW including the effect of phonon unconfinement in a RQW. These results are also compared with those in the case of unconfined phonons in a RQW and confined phonons in a quantum well. The conductivity in the case of confined phonon has more resonance peaks compared with that in case of unconfined phonons in a RQW. This new property is the same in quantum well. All results are compared with the case of unconfined phonons to see differences. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hall%20coefficient" title="Hall coefficient">Hall coefficient</a>, <a href="https://publications.waset.org/abstracts/search?q=rectangular%20quantum%20wires" title=" rectangular quantum wires"> rectangular quantum wires</a>, <a href="https://publications.waset.org/abstracts/search?q=electron-optical%20phonon%20interaction" title=" electron-optical phonon interaction"> electron-optical phonon interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=quantum%20kinetic%20equation" title=" quantum kinetic equation"> quantum kinetic equation</a>, <a href="https://publications.waset.org/abstracts/search?q=confined%20phonons" title=" confined phonons"> confined phonons</a> </p> <a href="https://publications.waset.org/abstracts/53789/hall-coefficient-in-the-presence-of-strong-electromagnetic-waves-caused-by-confined-electrons-and-phonons-in-a-rectangular-quantum-wire" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53789.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">280</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3199</span> Lattice Dynamics of (ND4Br)x(KBr)1-x Mixed Crystals</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alpana%20Tiwari">Alpana Tiwari</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20K.%20Gaur"> N. K. Gaur</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We have incorporated the translational rotational (TR) coupling effects in the framework of three body force shell model (TSM) to develop an extended TSM (ETSM). The dynamical matrix of ETSM has been applied to compute the phonon frequencies of orientationally disordered mixed crystal (ND4Br)x(KBr)1-x in (q00), (qq0) and (qqq) symmetry directions for compositions 0.10≤x≤0.50 at T=300K.These frequencies are plotted as a function of wave vector k. An unusual acoustic mode softening is found along symmetry directions (q00) and (qq0) as a result of translation-rotation coupling. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=orientational%20glass" title="orientational glass">orientational glass</a>, <a href="https://publications.waset.org/abstracts/search?q=phonons" title=" phonons"> phonons</a>, <a href="https://publications.waset.org/abstracts/search?q=TR-coupling" title=" TR-coupling"> TR-coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=lattice%20dynamics" title=" lattice dynamics"> lattice dynamics</a> </p> <a href="https://publications.waset.org/abstracts/6479/lattice-dynamics-of-nd4brxkbr1-x-mixed-crystals" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6479.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">305</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3198</span> Ab Initio Calculation of Fundamental Properties of CaxMg1-xA (a = Se and Te) Alloys in the Rock-Salt Structure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Ghebouli">M. A. Ghebouli</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Choutri"> H. Choutri</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Ghebouli"> B. Ghebouli </a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Fatmi"> M. Fatmi</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Louail"> L. Louail</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We employed the density-functional perturbation theory (DFPT) within the generalized gradient approximation (GGA), the local density approximation (LDA) and the virtual-crystal approximation (VCA) to study the effect of composition on the structure, stability, energy gaps, electron effective mass, the dynamic effective charge, optical and acoustical phonon frequencies and static and high dielectric constants of the rock-salt CaxMg1-xSe and CaxMg1-xTe alloys. The computed equilibrium lattice constant and bulk modulus show an important deviation from the linear concentration. From the Voigt-Reuss-Hill approximation, CaxMg1-xSe and CaxMg1-xTe present lower stiffness and lateral expansion. For Ca content ranging between 0.25-0.75, the elastic constants, energy gaps, electron effective mass and dynamic effective charge are predictions. The elastic constants and computed phonon dispersion curves indicate that these alloys are mechanically stable. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CaxMg1-xSe" title="CaxMg1-xSe">CaxMg1-xSe</a>, <a href="https://publications.waset.org/abstracts/search?q=CaxMg1-xTe" title=" CaxMg1-xTe"> CaxMg1-xTe</a>, <a href="https://publications.waset.org/abstracts/search?q=band%20structure" title=" band structure"> band structure</a>, <a href="https://publications.waset.org/abstracts/search?q=phonon" title=" phonon"> phonon</a> </p> <a href="https://publications.waset.org/abstracts/13861/ab-initio-calculation-of-fundamental-properties-of-caxmg1-xa-a-se-and-te-alloys-in-the-rock-salt-structure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13861.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">540</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3197</span> Surface Characterization and Femtosecond-Nanosecond Transient Absorption Dynamics of Bioconjugated Gold Nanoparticles: Insight into the Warfarin Drug-Binding Site of Human Serum Albumin</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20K.%20Abou-Zied">Osama K. Abou-Zied</a>, <a href="https://publications.waset.org/abstracts/search?q=Saba%20A.%20Sulaiman"> Saba A. Sulaiman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We studied the spectroscopy of 25-nm diameter gold nanoparticles (AuNPs), coated with human serum albumin (HSA) as a model drug carrier. The morphology and coating of the AuNPs were examined using transmission electron microscopy and dynamic light scattering. Resonance energy transfer from the sole tryptophan of HSA (Trp214) to the AuNPs was observed in which the fluorescence quenching of Trp214 is dominated by a static mechanism. Using fluorescein (FL) to probe the warfarin drug-binding site in HSA revealed the unchanged nature of the binding cavity on the surface of the AuNPs, indicating the stability of the protein structure on the metal surface. The transient absorption results of the surface plasmonic resonance (SPR) band of the AuNPs show three ultrafast dynamics that are involved in the relaxation process after excitation at 460 nm. The three decay components were assigned to the electron-electron (~ 400 fs), electron-phonon (~ 2.0 ps) and phonon-phonon (200–250 ps) interactions. These dynamics were not changed upon coating the AuNPs with HSA which indicates the chemical and physical stability of the AuNPs upon bioconjugation. Binding of FL in HSA did not have any measurable effect on the bleach recovery dynamics of the SPR band, although both FL and AuNPs were excited at 460 nm. The current study is important for a better understanding of the physical and dynamical properties of protein-coated metal nanoparticles which are expected to help in optimizing their properties for critical applications in nanomedicine. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gold%20nanoparticles" title="gold nanoparticles">gold nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20serum%20albumin" title=" human serum albumin"> human serum albumin</a>, <a href="https://publications.waset.org/abstracts/search?q=fluorescein" title=" fluorescein"> fluorescein</a>, <a href="https://publications.waset.org/abstracts/search?q=femtosecond%20transient%20absorption" title=" femtosecond transient absorption"> femtosecond transient absorption</a> </p> <a href="https://publications.waset.org/abstracts/55863/surface-characterization-and-femtosecond-nanosecond-transient-absorption-dynamics-of-bioconjugated-gold-nanoparticles-insight-into-the-warfarin-drug-binding-site-of-human-serum-albumin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55863.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">332</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3196</span> Dynamics of Adiabatic Rapid Passage in an Open Rabi Dimer Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Justin%20Zhengjie%20Tan">Justin Zhengjie Tan</a>, <a href="https://publications.waset.org/abstracts/search?q=Yang%20Zhao"> Yang Zhao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Adiabatic Rapid Passage, a popular method of achieving population inversion, is studied in a Rabi dimer model in the presence of noise which acts as a dissipative environment. The integration of the multi-Davydov D2 Ansatz into the time-dependent variational framework enables us to model the intricate quantum system accurately. By influencing the system with a driving field strength resonant with the energy spacing, the probability of adiabatic rapid passage, which is modelled after the Landau Zener model, can be derived along with several other observables, such as the photon population. The effects of a dissipative environment can be reproduced by coupling the system to a common phonon mode. By manipulating the strength and frequency of the driving field, along with the coupling strength of the phonon mode to the qubits, we are able to control the qubits and photon dynamics and subsequently increase the probability of Adiabatic Rapid Passage happening. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=quantum%20electrodynamics" title="quantum electrodynamics">quantum electrodynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=adiabatic%20rapid%20passage" title=" adiabatic rapid passage"> adiabatic rapid passage</a>, <a href="https://publications.waset.org/abstracts/search?q=Landau-Zener%20transitions" title=" Landau-Zener transitions"> Landau-Zener transitions</a>, <a href="https://publications.waset.org/abstracts/search?q=dissipative%20environment" title=" dissipative environment"> dissipative environment</a> </p> <a href="https://publications.waset.org/abstracts/167520/dynamics-of-adiabatic-rapid-passage-in-an-open-rabi-dimer-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167520.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">86</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3195</span> Synthesis, Characterization of Pd Nanoparticle Supported on Amine-Functionalized Graphene and Its Catalytic Activity for Suzuki Coupling Reaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Surjyakanta%20Rana">Surjyakanta Rana</a>, <a href="https://publications.waset.org/abstracts/search?q=Sreekantha%20B.%20Jonnalagadda"> Sreekantha B. Jonnalagadda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Synthesis of well distributed Pd nanoparticles (3 – 7 nm) on organo amine-functionalized graphene is reported, which demonstrated excellent catalytic activity towards Suzuki coupling reaction. The active material was characterized by X-ray diffraction (XRD), BET surface area, X-ray photoelectron spectra (XPS), Fourier-transfer infrared spectroscopy (FTIR), Raman spectra, Scanning electron microscope (SEM), Transmittance electron microscopy (TEM) analysis and HRTEM. FT-IR revealed that the organic amine functional group was successfully grafted onto the graphene oxide surface. The formation of palladium nanoparticles was confirmed by XPS, TEM and HRTEM techniques. The catalytic activity in the coupling reaction was superb with 100% conversion and 98 % yield and also activity remained almost unaltered up to six cycles. Typically, an extremely high turnover frequency of 185,078 h-1 is observed in the C-C Suzuki coupling reaction using organo di-amine functionalized graphene as catalyst. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Di-amine" title="Di-amine">Di-amine</a>, <a href="https://publications.waset.org/abstracts/search?q=graphene" title=" graphene"> graphene</a>, <a href="https://publications.waset.org/abstracts/search?q=Pd%20nanoparticle" title=" Pd nanoparticle"> Pd nanoparticle</a>, <a href="https://publications.waset.org/abstracts/search?q=suzuki%20coupling" title=" suzuki coupling"> suzuki coupling</a> </p> <a href="https://publications.waset.org/abstracts/31977/synthesis-characterization-of-pd-nanoparticle-supported-on-amine-functionalized-graphene-and-its-catalytic-activity-for-suzuki-coupling-reaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31977.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">375</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3194</span> A Review on Thermal Conductivity of Bio-Based Carbon Nanotubes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gloria%20A.%20Adewumi">Gloria A. Adewumi</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrew%20C.%20Eloka-Eboka"> Andrew C. Eloka-Eboka</a>, <a href="https://publications.waset.org/abstracts/search?q=Freddie%20L.%20Inambao"> Freddie L. Inambao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Bio-based carbon nanotubes (CNTs) have received considerable research attention due to their comparative advantages of high level stability, simplistic use, low toxicity and overall environmental friendliness. New potentials for improvement in heat transfer applications are presented due to their high aspect ratio, high thermal conductivity and special surface area. Phonons have been identified as being responsible for thermal conductivities in carbon nanotubes. Therefore, understanding the mechanism of heat conduction in CNTs involves investigating the difference between the varieties of phonon modes and knowing the kinds of phonon modes that play the dominant role. In this review, a reference to a different number of studies is made and in addition, the role of phonon relaxation rate mainly controlled by boundary scattering and three-phonon Umklapp scattering process was investigated. Results show that the phonon modes are sensitive to a number of nanotube conditions such as: diameter, length, temperature, defects and axial strain. At a low temperature (<100K) the thermal conductivity increases with increasing temperature. A small nanotube size causes phonon quantization which is evident in the thermal conductivity at low temperatures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20nanotubes" title="carbon nanotubes">carbon nanotubes</a>, <a href="https://publications.waset.org/abstracts/search?q=phonons" title=" phonons"> phonons</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20conductivity" title=" thermal conductivity"> thermal conductivity</a>, <a href="https://publications.waset.org/abstracts/search?q=Umklapp%20process" title=" Umklapp process"> Umklapp process</a> </p> <a href="https://publications.waset.org/abstracts/37822/a-review-on-thermal-conductivity-of-bio-based-carbon-nanotubes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37822.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">360</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3193</span> Prediction of Phonon Thermal Conductivity of F.C.C. Al by Molecular Dynamics Simulation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Leila%20Momenzadeh">Leila Momenzadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20V.%20Evteev"> Alexander V. Evteev</a>, <a href="https://publications.waset.org/abstracts/search?q=Elena%20V.%20Levchenko"> Elena V. Levchenko</a>, <a href="https://publications.waset.org/abstracts/search?q=Tanvir%20Ahmed"> Tanvir Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Irina%20Belova"> Irina Belova</a>, <a href="https://publications.waset.org/abstracts/search?q=Graeme%20Murch"> Graeme Murch</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, the phonon thermal conductivity of f.c.c. Al is investigated in detail in the temperature range 100 – 900 K within the framework of equilibrium molecular dynamics simulations making use of the Green-Kubo formalism and one of the most reliable embedded-atom method potentials. It is found that the heat current auto-correlation function of the f.c.c. Al model demonstrates a two-stage temporal decay similar to the previously observed for f.c.c Cu model. After the first stage of decay, the heat current auto-correlation function of the f.c.c. Al model demonstrates a peak in the temperature range 100-800 K. The intensity of the peak decreases as the temperature increases. At 900 K, it transforms to a shoulder. To describe the observed two-stage decay of the heat current auto-correlation function of the f.c.c. Al model, we employ decomposition model recently developed for phonon-mediated thermal transport in a monoatomic lattice. We found that the electronic contribution to the total thermal conductivity of f.c.c. Al dominates over the whole studied temperature range. However, the phonon contribution to the total thermal conductivity of f.c.c. Al increases as temperature decreases. It is about 1.05% at 900 K and about 12.5% at 100 K. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminum" title="aluminum">aluminum</a>, <a href="https://publications.waset.org/abstracts/search?q=gGreen-Kubo%20formalism" title=" gGreen-Kubo formalism"> gGreen-Kubo formalism</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20dynamics" title=" molecular dynamics"> molecular dynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=phonon%20thermal%20conductivity" title=" phonon thermal conductivity"> phonon thermal conductivity</a> </p> <a href="https://publications.waset.org/abstracts/19983/prediction-of-phonon-thermal-conductivity-of-fcc-al-by-molecular-dynamics-simulation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19983.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">413</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3192</span> C₅₉Pd: A Heterogeneous Catalytic Material for Heck Coupling Reaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manjusha%20C.%20Padole">Manjusha C. Padole</a>, <a href="https://publications.waset.org/abstracts/search?q=Parag%20A.%20Deshpande"> Parag A. Deshpande</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Density functional theory calculations were carried out for identification of an active heterogeneous catalyst to carry out Heck coupling reaction which is of pharmaceutical importance. One of the carbonaceous nanomaterials, heterofullerene, was designed for the reaction. Stability and reactivity of the proposed heterofullerenes (C59M, M = Pd/Ni) were established with insights into the metal-carbon bond, electron affinity and chemical potential. Adsorbent potentials of both the heterofullerenes were examined from the adsorption study of four halobenzenes (C6H5F, C6H5Cl, C6H5Br and C6H5I). Oxidative addition activities of all four halobenzenes were investigated by developing free energy landscapes over both the heterofullerenes for rate determining step (oxidative addition). C6H5I showed a good catalytic activity for the rate determining step. Thus, C6H5I was proposed as a suitable halobenzene and complete free energy landscapes for Heck coupling reaction were developed over C59Pd and C59Ni. Smaller activation barriers observed over C59Pd in comparison with C59Ni put us in a position to propose C59Pd to be an efficient heterofullerene for carrying Heck coupling reaction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metal-substituted%20fullerene" title="metal-substituted fullerene">metal-substituted fullerene</a>, <a href="https://publications.waset.org/abstracts/search?q=density%20functional%20theory" title=" density functional theory"> density functional theory</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20affinity" title=" electron affinity"> electron affinity</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidative%20addition" title=" oxidative addition"> oxidative addition</a>, <a href="https://publications.waset.org/abstracts/search?q=Heck%20coupling%20reaction" title=" Heck coupling reaction"> Heck coupling reaction</a> </p> <a href="https://publications.waset.org/abstracts/60474/c59pd-a-heterogeneous-catalytic-material-for-heck-coupling-reaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60474.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">224</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3191</span> Controlling Excitons Complexes in Two Dimensional MoS₂ Monolayers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arslan%20Usman">Arslan Usman</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdul%20Sattar"> Abdul Sattar</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Latif"> Hamid Latif</a>, <a href="https://publications.waset.org/abstracts/search?q=Afshan%20Ashfaq"> Afshan Ashfaq</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Rafique"> Muhammad Rafique</a>, <a href="https://publications.waset.org/abstracts/search?q=Martin%20Koch"> Martin Koch</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Two-dimensional materials have promising applications in optoelectronic and photonics; MoS₂ is the pioneer 2D material in the family of transition metal dichalcogenides. Its optical, optoelectronic, and structural properties are of practical importance along with its exciton dynamics. Exciton, along with exciton complexes, plays a vital role in realizing quantum devices. MoS₂ monolayers were synthesized using chemical vapour deposition (CVD) technique on SiO₂ and hBN substrates. Photoluminescence spectroscopy (PL) was used to identify the monolayer, which also reflects the substrate based peak broadening due to screening effects. In-plane and out of plane characteristic vibrational modes E¹₂g and A₁g, respectively, were detected in a different configuration on the substrate. The B-excitons and trions showed a dominant feature at low temperatures due to electron-phonon coupling effects, whereas their energies are separated by 100 meV. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=2D%20materials" title="2D materials">2D materials</a>, <a href="https://publications.waset.org/abstracts/search?q=photoluminescence" title=" photoluminescence"> photoluminescence</a>, <a href="https://publications.waset.org/abstracts/search?q=AFM" title=" AFM"> AFM</a>, <a href="https://publications.waset.org/abstracts/search?q=excitons" title=" excitons"> excitons</a> </p> <a href="https://publications.waset.org/abstracts/114832/controlling-excitons-complexes-in-two-dimensional-mos2-monolayers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/114832.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">144</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3190</span> Analysis of Ionosphere Anomaly Before Great Earthquake in Java on 2009 Using GPS Tec Data</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aldilla%20Damayanti%20Purnama%20Ratri">Aldilla Damayanti Purnama Ratri</a>, <a href="https://publications.waset.org/abstracts/search?q=Hendri%20Subakti"> Hendri Subakti</a>, <a href="https://publications.waset.org/abstracts/search?q=Buldan%20Muslim"> Buldan Muslim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ionosphere’s anomalies as an effect of earthquake activity is a phenomenon that is now being studied in seismo-ionospheric coupling. Generally, variation in the ionosphere caused by earthquake activity is weaker than the interference generated by different source, such as geomagnetic storms. However, disturbances of geomagnetic storms show a more global behavior, while the seismo-ionospheric anomalies occur only locally in the area which is largely determined by magnitude of the earthquake. It show that the earthquake activity is unique and because of its uniqueness it has been much research done thus expected to give clues as early warning before earthquake. One of the research that has been developed at this time is the approach of seismo-ionospheric-coupling. This study related the state in the lithosphere-atmosphere and ionosphere before and when earthquake occur. This paper choose the total electron content in a vertical (VTEC) in the ionosphere as a parameter. Total Electron Content (TEC) is defined as the amount of electron in vertical column (cylinder) with cross-section of 1m2 along GPS signal trajectory in ionosphere at around 350 km of height. Based on the analysis of data obtained from the LAPAN agency to identify abnormal signals by statistical methods, obtained that there are an anomaly in the ionosphere is characterized by decreasing of electron content of the ionosphere at 1 TECU before the earthquake occurred. Decreasing of VTEC is not associated with magnetic storm that is indicated as an earthquake precursor. This is supported by the Dst index showed no magnetic interference. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=earthquake" title="earthquake">earthquake</a>, <a href="https://publications.waset.org/abstracts/search?q=DST%20Index" title=" DST Index"> DST Index</a>, <a href="https://publications.waset.org/abstracts/search?q=ionosphere" title=" ionosphere"> ionosphere</a>, <a href="https://publications.waset.org/abstracts/search?q=seismoionospheric%20coupling" title=" seismoionospheric coupling"> seismoionospheric coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=VTEC" title=" VTEC"> VTEC</a> </p> <a href="https://publications.waset.org/abstracts/20603/analysis-of-ionosphere-anomaly-before-great-earthquake-in-java-on-2009-using-gps-tec-data" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20603.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">585</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3189</span> Magnetoelectric Coupling in Hetero-Structured Nano-Composite of BST-BLFM Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Navneet%20Dabra">Navneet Dabra</a>, <a href="https://publications.waset.org/abstracts/search?q=Jasbir%20S.%20HUndal"> Jasbir S. HUndal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hetero-structured nano-composite thin film of Ba0.5Sr0.5TiO3/Bi0.9La0.1Fe0.9Mn0.1O3 (BST/BLFM) has been prepared by chemical solution deposition method with various BST to BLFM thickness ratios. These films have been deposited over on p-type Si (100) substrate. These samples exhibited low leakage current, large grain size and uniform distribution of particles. The maximum remanent polarization (Pr) was achieved in the heterostructures with thickness ratio of 2.65. The dielectric tenability, electric hysteresis (P-E), ME coupling coefficient, magnetic hysteresis (M-H), ferromagnetic exchange interaction and magnetoelectric measurements were carried out. Field Emission Scanning Electron Microscopy has been employed to investigate the surface morphology of these heterostructured nano-composite films. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetoelectric" title="magnetoelectric">magnetoelectric</a>, <a href="https://publications.waset.org/abstracts/search?q=Schottky%20emission" title=" Schottky emission"> Schottky emission</a>, <a href="https://publications.waset.org/abstracts/search?q=interface%20coupling" title=" interface coupling"> interface coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=dielectric%20tenability" title=" dielectric tenability"> dielectric tenability</a>, <a href="https://publications.waset.org/abstracts/search?q=electric%20hysteresis%20%28P-E%29" title=" electric hysteresis (P-E)"> electric hysteresis (P-E)</a>, <a href="https://publications.waset.org/abstracts/search?q=ME%20coupling%20coefficient" title=" ME coupling coefficient"> ME coupling coefficient</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20hysteresis%20%28M-H%29" title=" magnetic hysteresis (M-H)"> magnetic hysteresis (M-H)</a> </p> <a href="https://publications.waset.org/abstracts/8738/magnetoelectric-coupling-in-hetero-structured-nano-composite-of-bst-blfm-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8738.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">429</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3188</span> Influence of an External Magnetic Field on the Acoustomagnetoelectric Field in a Rectangular Quantum Wire with an Infinite Potential by Using a Quantum Kinetic Equation </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Q.%20Bau">N. Q. Bau</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20V.%20Nghia"> N. V. Nghia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The acoustomagnetoelectric (AME) field in a rectangular quantum wire with an infinite potential (RQWIP) is calculated in the presence of an external magnetic field (EMF) by using the quantum kinetic equation for the distribution function of electrons system interacting with external phonons and electrons scattering with internal acoustic phonon in a RQWIP. We obtained ananalytic expression for the AME field in the RQWIP in the presence of the EMF. The dependence of AME field on the frequency of external acoustic wave, the temperature T of system, the cyclotron frequency of the EMF and the intensity of the EMF is obtained. Theoretical results for the AME field are numerically evaluated, plotted and discussed for a specific RQWIP GaAs/GaAsAl. This result has shown that the dependence of the AME field on intensity of the EMF is nonlinearly and it is many distinct maxima in the quantized magnetic region. We also compared received fields with those for normal bulk semiconductors, quantum well and quantum wire to show the difference. The influence of an EMF on AME field in a RQWIP is newly developed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rectangular%20quantum%20wire" title="rectangular quantum wire">rectangular quantum wire</a>, <a href="https://publications.waset.org/abstracts/search?q=acoustomagnetoelectric%20field" title=" acoustomagnetoelectric field"> acoustomagnetoelectric field</a>, <a href="https://publications.waset.org/abstracts/search?q=electron-phonon%20interaction" title=" electron-phonon interaction"> electron-phonon interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=kinetic%20equation%20method" title=" kinetic equation method"> kinetic equation method</a> </p> <a href="https://publications.waset.org/abstracts/41446/influence-of-an-external-magnetic-field-on-the-acoustomagnetoelectric-field-in-a-rectangular-quantum-wire-with-an-infinite-potential-by-using-a-quantum-kinetic-equation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41446.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">336</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3187</span> The Light-Effect in Cylindrical Quantum Wire with an Infinite Potential for the Case of Electrons: Optical Phonon Scattering</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hoang%20Van%20Ngoc">Hoang Van Ngoc</a>, <a href="https://publications.waset.org/abstracts/search?q=Nguyen%20Vu%20Nhan"> Nguyen Vu Nhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Nguyen%20Quang%20Bau"> Nguyen Quang Bau</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The light-effect in cylindrical quantum wire with an infinite potential for the case of electrons, optical phonon scattering, is studied based on the quantum kinetic equation. The density of the direct current in a cylindrical quantum wire by a linearly polarized electromagnetic wave, a DC electric field, and an intense laser field is calculated. Analytic expressions for the density of the direct current are studied as a function of the frequency of the laser radiation field, the frequency of the linearly polarized electromagnetic wave, the temperature of system, and the size of quantum wire. The density of the direct current in cylindrical quantum wire with an infinite potential for the case of electrons – optical phonon scattering is nonlinearly dependent on the frequency of the linearly polarized electromagnetic wave. The analytic expressions are numerically evaluated and plotted for a specific quantum wire, GaAs/GaAsAl. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=the%20light%E2%80%93effect" title="the light–effect">the light–effect</a>, <a href="https://publications.waset.org/abstracts/search?q=cylindrical%20quantum%20wire%20with%20an%20infinite%20potential" title=" cylindrical quantum wire with an infinite potential"> cylindrical quantum wire with an infinite potential</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20density%20of%20the%20direct%20current" title=" the density of the direct current"> the density of the direct current</a>, <a href="https://publications.waset.org/abstracts/search?q=electrons-optical%20phonon%20scattering" title=" electrons-optical phonon scattering"> electrons-optical phonon scattering</a> </p> <a href="https://publications.waset.org/abstracts/75022/the-light-effect-in-cylindrical-quantum-wire-with-an-infinite-potential-for-the-case-of-electrons-optical-phonon-scattering" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75022.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">340</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3186</span> First Principle-Based Dft and Microkinetic Simulation of Co-Conversion of Carbon Dioxide and Methane on Single Iridium Atom Doped Hematite with Surface Oxygen Defect</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kefale%20W.%20Yizengaw">Kefale W. Yizengaw</a>, <a href="https://publications.waset.org/abstracts/search?q=Delele%20Worku%20Ayele"> Delele Worku Ayele</a>, <a href="https://publications.waset.org/abstracts/search?q=Jyh-Chiang%20Jiang"> Jyh-Chiang Jiang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The catalytic co-conversion of CO₂ and CH₄ to value-added compounds has become one of the promising approaches to addressing global climate change by having valuable fossil fuels. Thedirect co-conversion of CO₂ and CH₄ to value-added compounds is attractive but tremendously challenging because of both molecules' thermodynamic stability and kinetic inertness. In the present study, a single iridium atom doped and a single oxygen atom defect hematite (110)surface model catalyst, which can comprehend direct C–O coupling based on simultaneous activation of CO2 and CH4 was studied using density functional theory plus U (DFT + U)calculations. The presence of dual active sites on the Ir/Fe₂O₃(110)-OV surface catalyst enablesCO₂ activation on the Ir site and CH₄ activation at the defect site. The electron analysis for the theco-adsorption of CO₂ and CH₄ deals with the electron redistribution on the surface and clearly shows the synergistic effect for simultaneous CO₂ and CH₄ activation on Ir/α- Fe₂O₃(110)-OVsurface. The microkinetic analysis shows that the dissociation of CH4 to CH3 * and H* plays an excellent role in the C–O coupling. The coverage analysis for the intermediate products of the microkinetic simulation results indicates that C–O coupling is the reaction limiting step. Finally, after the CH₃O* intermediate product species is produced, the radical hydrogen species spontaneously diffuse to the CH3O* intermediate product to form methanol at around 490 [K]. The present work provides mechanistic and kinetic insights into the direct C–O coupling of CO₂and CH₄, which could help design more-efficient catalysts. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=co-conversion" title="co-conversion">co-conversion</a>, <a href="https://publications.waset.org/abstracts/search?q=C%E2%80%93O%20coupling" title=" C–O coupling"> C–O coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=doping" title=" doping"> doping</a>, <a href="https://publications.waset.org/abstracts/search?q=oxygen%20vacancy" title=" oxygen vacancy"> oxygen vacancy</a>, <a href="https://publications.waset.org/abstracts/search?q=microkinetic" title=" microkinetic"> microkinetic</a> </p> <a href="https://publications.waset.org/abstracts/158456/first-principle-based-dft-and-microkinetic-simulation-of-co-conversion-of-carbon-dioxide-and-methane-on-single-iridium-atom-doped-hematite-with-surface-oxygen-defect" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158456.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">115</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3185</span> Ab Initio Studies of Structural and Thermal Properties of Aluminum Alloys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Saadi">M. Saadi</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20E.%20H.%20Abaidia"> S. E. H. Abaidia</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Y.%20Mokeddem."> M. Y. Mokeddem.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We present the results of a systematic and comparative study of the bulk, the structural properties, and phonon calculations of aluminum alloys using several exchange–correlations functional theory (DFT) with different plane-wave basis pseudo potential techniques. Density functional theory implemented by the Vienna Ab Initio Simulation Package (VASP) technique is applied to calculate the bulk and the structural properties of several structures. The calculations were performed for within several exchange–correlation functional and pseudo pententials available in this code (local density approximation (LDA), generalized gradient approximation (GGA), projector augmented wave (PAW)). The lattice dynamic code “PHON” developed by Dario Alfè was used to calculate some thermodynamics properties and phonon dispersion relation frequency distribution of Aluminium alloys using the VASP LDA PAW and GGA PAW results. The bulk and structural properties of the calculated structures were compared to different experimental and calculated works. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DFT" title="DFT">DFT</a>, <a href="https://publications.waset.org/abstracts/search?q=exchange-correlation%20functional" title=" exchange-correlation functional"> exchange-correlation functional</a>, <a href="https://publications.waset.org/abstracts/search?q=LDA" title=" LDA"> LDA</a>, <a href="https://publications.waset.org/abstracts/search?q=GGA" title=" GGA"> GGA</a>, <a href="https://publications.waset.org/abstracts/search?q=pseudopotential" title=" pseudopotential"> pseudopotential</a>, <a href="https://publications.waset.org/abstracts/search?q=PAW" title=" PAW"> PAW</a>, <a href="https://publications.waset.org/abstracts/search?q=VASP" title=" VASP"> VASP</a>, <a href="https://publications.waset.org/abstracts/search?q=PHON" title=" PHON"> PHON</a>, <a href="https://publications.waset.org/abstracts/search?q=phonon%20dispersion" title="phonon dispersion ">phonon dispersion </a> </p> <a href="https://publications.waset.org/abstracts/21663/ab-initio-studies-of-structural-and-thermal-properties-of-aluminum-alloys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21663.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">485</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3184</span> Investigation on the Behavior of Conventional Reinforced Coupling Beams</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akash%20K.%20Walunj">Akash K. Walunj</a>, <a href="https://publications.waset.org/abstracts/search?q=Dipendu%20Bhunia"> Dipendu Bhunia</a>, <a href="https://publications.waset.org/abstracts/search?q=Samarth%20Gupta"> Samarth Gupta</a>, <a href="https://publications.waset.org/abstracts/search?q=Prabhat%20Gupta"> Prabhat Gupta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Coupled shear walls consist of two shear walls connected intermittently by beams along the height. The behavior of coupled shear walls is mainly governed by the coupling beams. The coupling beams are designed for ductile inelastic behavior in order to dissipate energy. The base of the shear walls may be designed for elastic or ductile inelastic behavior. The amount of energy dissipation depends on the yield moment capacity and plastic rotation capacity of the coupling beams. In this paper, an analytical model of coupling beam was developed to calculate the rotations and moment capacities of coupling beam with conventional reinforcement. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design%20studies" title="design studies">design studies</a>, <a href="https://publications.waset.org/abstracts/search?q=computational%20model%28s%29" title=" computational model(s)"> computational model(s)</a>, <a href="https://publications.waset.org/abstracts/search?q=case%20study%2Fstudies" title=" case study/studies"> case study/studies</a>, <a href="https://publications.waset.org/abstracts/search?q=modelling" title=" modelling"> modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=coupling%20beam" title=" coupling beam"> coupling beam</a> </p> <a href="https://publications.waset.org/abstracts/3310/investigation-on-the-behavior-of-conventional-reinforced-coupling-beams" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3310.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">476</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3183</span> Electron Bernstein Wave Heating in the Toroidally Magnetized System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Johan%20Buermans">Johan Buermans</a>, <a href="https://publications.waset.org/abstracts/search?q=Kristel%20Cromb%C3%A9"> Kristel Crombé</a>, <a href="https://publications.waset.org/abstracts/search?q=Niek%20Desmet"> Niek Desmet</a>, <a href="https://publications.waset.org/abstracts/search?q=Laura%20Dittrich"> Laura Dittrich</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrei%20Goriaev"> Andrei Goriaev</a>, <a href="https://publications.waset.org/abstracts/search?q=Yurii%20Kovtun"> Yurii Kovtun</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20L%C3%B3pez-Rodriguez"> Daniel López-Rodriguez</a>, <a href="https://publications.waset.org/abstracts/search?q=S%C3%B6ren%20M%C3%B6ller"> Sören Möller</a>, <a href="https://publications.waset.org/abstracts/search?q=Per%20Petersson"> Per Petersson</a>, <a href="https://publications.waset.org/abstracts/search?q=Maja%20Verstraeten"> Maja Verstraeten</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The International Thermonuclear Experimental Reactor (ITER) will rely on three sources of external heating to produce and sustain a plasma; Neutral Beam Injection (NBI), Ion Cyclotron Resonance Heating (ICRH), and Electron Cyclotron Resonance Heating (ECRH). ECRH is a way to heat the electrons in a plasma by resonant absorption of electromagnetic waves. The energy of the electrons is transferred indirectly to the ions by collisions. The electron cyclotron heating system can be directed to deposit heat in particular regions in the plasma (https://www.iter.org/mach/Heating). Electron Cyclotron Resonance Heating (ECRH) at the fundamental resonance in X-mode is limited by a low cut-off density. Electromagnetic waves cannot propagate in the region between this cut-off and the Upper Hybrid Resonance (UHR) and cannot reach the Electron Cyclotron Resonance (ECR) position. Higher harmonic heating is hence preferred in heating scenarios nowadays to overcome this problem. Additional power deposition mechanisms can occur above this threshold to increase the plasma density. This includes collisional losses in the evanescent region, resonant power coupling at the UHR, tunneling of the X-wave with resonant coupling at the ECR, and conversion to the Electron Bernstein Wave (EBW) with resonant coupling at the ECR. A more profound knowledge of these deposition mechanisms can help determine the optimal plasma production scenarios. Several ECRH experiments are performed on the TOroidally MAgnetized System (TOMAS) to identify the conditions for Electron Bernstein Wave (EBW) heating. Density and temperature profiles are measured with movable Triple Langmuir Probes in the horizontal and vertical directions. Measurements of the forwarded and reflected power allow evaluation of the coupling efficiency. Optical emission spectroscopy and camera images also contribute to plasma characterization. The influence of the injected power, magnetic field, gas pressure, and wave polarization on the different deposition mechanisms is studied, and the contribution of the Electron Bernstein Wave is evaluated. The TOMATOR 1D hydrogen-helium plasma simulator numerically describes the evolution of current less magnetized Radio Frequency plasmas in a tokamak based on Braginskii’s legal continuity and heat balance equations. This code was initially benchmarked with experimental data from TCV to determine the transport coefficients. The code is used to model the plasma parameters and the power deposition profiles. The modeling is compared with the data from the experiments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electron%20Bernstein%20wave" title="electron Bernstein wave">electron Bernstein wave</a>, <a href="https://publications.waset.org/abstracts/search?q=Langmuir%20probe" title=" Langmuir probe"> Langmuir probe</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20characterization" title=" plasma characterization"> plasma characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=TOMAS" title=" TOMAS"> TOMAS</a> </p> <a href="https://publications.waset.org/abstracts/163243/electron-bernstein-wave-heating-in-the-toroidally-magnetized-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163243.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">95</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3182</span> Empirical Investigation for the Correlation between Object-Oriented Class Lack of Cohesion and Coupling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jehad%20Al%20Dallal">Jehad Al Dallal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The design of the internal relationships among object-oriented class members (i.e., attributes and methods) and the external relationships among classes affects the overall quality of the object-oriented software. The degree of relatedness among class members is referred to as class cohesion and the degree to which a class is related to other classes is called class coupling. Well designed classes are expected to exhibit high cohesion and low coupling values. In this paper, using classes of three open-source Java systems, we empirically investigate the relation between class cohesion and coupling. In the empirical study, five lack-of-cohesion metrics and eight coupling metrics are considered. The empirical study results show that class cohesion and coupling internal quality attributes are inversely correlated. The strength of the correlation highly depends on the cohesion and coupling measurement approaches. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=class%20cohesion%20measure" title="class cohesion measure">class cohesion measure</a>, <a href="https://publications.waset.org/abstracts/search?q=class%20coupling%20measure" title=" class coupling measure"> class coupling measure</a>, <a href="https://publications.waset.org/abstracts/search?q=object-oriented%20class" title=" object-oriented class"> object-oriented class</a>, <a href="https://publications.waset.org/abstracts/search?q=software%20quality" title=" software quality"> software quality</a> </p> <a href="https://publications.waset.org/abstracts/45455/empirical-investigation-for-the-correlation-between-object-oriented-class-lack-of-cohesion-and-coupling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45455.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">236</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3181</span> Empirical Exploration for the Correlation between Class Object-Oriented Connectivity-Based Cohesion and Coupling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jehad%20Al%20Dallal">Jehad Al Dallal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Attributes and methods are the basic contents of an object-oriented class. The connectivity among these class members and the relationship between the class and other classes play an important role in determining the quality of an object-oriented system. Class cohesion evaluates the degree of relatedness of class attributes and methods, whereas class coupling refers to the degree to which a class is related to other classes. Researchers have proposed several class cohesion and class coupling measures. However, the correlation between class coupling and class cohesion measures have not been thoroughly studied. In this paper, using classes of three open-source Java systems, we empirically investigate the correlation between several measures of connectivity-based class cohesion and coupling. Four connectivity-based cohesion measures and eight coupling measures are considered in the empirical study. The empirical study results show that class connectivity-based cohesion and coupling internal quality attributes are inversely correlated. The strength of the correlation depends highly on the cohesion and coupling measurement approaches. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=object-oriented%20class" title="object-oriented class">object-oriented class</a>, <a href="https://publications.waset.org/abstracts/search?q=software%20quality" title=" software quality"> software quality</a>, <a href="https://publications.waset.org/abstracts/search?q=class%20cohesion%20measure" title=" class cohesion measure"> class cohesion measure</a>, <a href="https://publications.waset.org/abstracts/search?q=class%20coupling%20measure" title=" class coupling measure"> class coupling measure</a> </p> <a href="https://publications.waset.org/abstracts/18331/empirical-exploration-for-the-correlation-between-class-object-oriented-connectivity-based-cohesion-and-coupling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18331.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">321</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3180</span> Magneto-Transport of Single Molecular Transistor Using Anderson-Holstein-Caldeira-Leggett Model </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manasa%20Kalla">Manasa Kalla</a>, <a href="https://publications.waset.org/abstracts/search?q=Narasimha%20Raju%20Chebrolu"> Narasimha Raju Chebrolu</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashok%20Chatterjee"> Ashok Chatterjee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We have studied the quantum transport properties of a single molecular transistor in the presence of an external magnetic field using the Keldysh Green function technique. We also used the Anderson-Holstein-Caldeira-Leggett Model to describe the single molecular transistor that consists of a molecular quantum dot (QD) coupled to two metallic leads and placed on a substrate that acts as a heat bath. The phonons are eliminated by the Lang-Firsov transformation and the effective Hamiltonian is used to study the effect of an external magnetic field on the spectral density function, Tunneling Current, Differential Conductance and Spin polarization. A peak in the spectral function corresponds to a possible excitation. In the presence of a magnetic field, the spin-up and spin-down states are degenerate and this degeneracy is lifted by the magnetic field leading to the splitting of the central peak of the spectral function. The tunneling current decreases with increasing magnetic field. We have observed that even the differential conductance peak in the zero magnetic field curve is split in the presence electron-phonon interaction. As the magnetic field is increased, each peak splits into two peaks. And each peak indicates the existence of an energy level. Thus the number of energy levels for transport in the bias window increases with the magnetic field. In the presence of the electron-phonon interaction, Differential Conductance in general gets reduced and decreases faster with the magnetic field. As magnetic field strength increases, the spin polarization of the current is increasing. Our results show that a strongly interacting QD coupled to metallic leads in the presence of external magnetic field parallel to the plane of QD acts as a spin filter at zero temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anderson-Holstein%20model" title="Anderson-Holstein model">Anderson-Holstein model</a>, <a href="https://publications.waset.org/abstracts/search?q=Caldeira-Leggett%20model" title=" Caldeira-Leggett model"> Caldeira-Leggett model</a>, <a href="https://publications.waset.org/abstracts/search?q=spin-polarization" title=" spin-polarization"> spin-polarization</a>, <a href="https://publications.waset.org/abstracts/search?q=quantum%20dots" title=" quantum dots"> quantum dots</a> </p> <a href="https://publications.waset.org/abstracts/93952/magneto-transport-of-single-molecular-transistor-using-anderson-holstein-caldeira-leggett-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93952.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">185</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3179</span> Effect of Coupling Agent on the Properties of Durian Skin Fibre Reinforced Polypropylene Composite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hazleen%20Anuar">Hazleen Anuar</a>, <a href="https://publications.waset.org/abstracts/search?q=Nur%20Aimi%20Mohd%20Nasir"> Nur Aimi Mohd Nasir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Durian skin is a newly explores natural fibre potentially reinforced polyolefin for diverse applications. In this work, investigation on the effect of coupling agent, maleic anhydride polypropylene (MAPP) on the mechanical, morphological and thermal properties of polypropylene (PP) reinforced with durian skin fibre (DSF) was conducted. The presence of 30 wt% DSF significantly reduced the tensile strength of PP-DSF composite. Interestingly, even though the same trend goes to PP-DSF with the presence of MAPP, the reduction is only about 4% relative to unreinforced PP and 18% higher than PP-DSF without MAPP (untreated composite or UTC). The used of MAPP in treated composite (TC) also increased the tensile modulus, flexural properties and degradation temperature. The enhanced mechanical properties are consistent with good interfacial interaction as evidenced under scanning electron microscopy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=durian%20skin%20fiber" title="durian skin fiber">durian skin fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=coupling%20agent" title=" coupling agent"> coupling agent</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20properties" title=" mechanical properties"> mechanical properties</a>, <a href="https://publications.waset.org/abstracts/search?q=thermogravimetry%20analysis" title=" thermogravimetry analysis"> thermogravimetry analysis</a> </p> <a href="https://publications.waset.org/abstracts/33625/effect-of-coupling-agent-on-the-properties-of-durian-skin-fibre-reinforced-polypropylene-composite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33625.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">464</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3178</span> Capacitive Coupling Wireless Power Transfer System with 6.78 MHz Class D Inverter</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kang%20Hyun%20Yi">Kang Hyun Yi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wireless power transfer technologies are inductive coupling, magnetic resonance, and capacitive coupling methods, typically. Among them, the capacitive coupling wireless power transfer, also named Capacitive Coupling Wireless Power Transfer (CCWPT), has been researched to overcome the drawbacks of other approaches. The CCWPT has many advantages such as a simple structure, low standing power loss, reduced Electromagnetic Interference (EMI) and the ability to transfer power through metal barriers. In this paper, the CCWPT system with 6.78MHz class D inverter is proposed and analyzed. The proposed system is consisted of the 6.78MHz class D inverter with the LC low pass filter, the capacitor between a transmitter and a receiver and impedance transformers. The system is verified with a prototype for charging mobile devices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wireless%20power%20transfer" title="wireless power transfer">wireless power transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=capacitive%20coupling%20power%20transfer" title=" capacitive coupling power transfer"> capacitive coupling power transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=class%20D%20inverter" title=" class D inverter"> class D inverter</a>, <a href="https://publications.waset.org/abstracts/search?q=6.78MHz" title=" 6.78MHz"> 6.78MHz</a> </p> <a href="https://publications.waset.org/abstracts/14367/capacitive-coupling-wireless-power-transfer-system-with-678-mhz-class-d-inverter" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14367.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">650</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3177</span> Anti-Phase Synchronization of Complex Delayed Networks with Output Coupling via Pinning Control</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chanyuan%20Gu">Chanyuan Gu</a>, <a href="https://publications.waset.org/abstracts/search?q=Shouming%20Zhong"> Shouming Zhong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Synchronization is a fundamental phenomenon that enables coherent behavior in networks as a result of interactions. The purpose of this research had been to investigate the problem of anti-phase synchronization for complex delayed dynamical networks with output coupling. The coupling configuration is general, with the coupling matrix not assumed to be symmetric or irreducible. The amount of the coupling variables between two connected nodes is flexible, the nodes in the drive and response systems need not to be identical and there is not any extra constraint on the coupling matrix. Some pinning controllers are designed to make the drive-response system achieve the anti-phase synchronization. For the convenience of description, we applied the matrix Kronecker product. Some new criteria are proposed based on the Lyapunov stability theory, linear matrix inequalities (LMI) and Schur complement. Lastly, some simulation examples are provided to illustrate the effectiveness of our proposed conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anti-phase%20synchronization" title="anti-phase synchronization">anti-phase synchronization</a>, <a href="https://publications.waset.org/abstracts/search?q=complex%20networks" title=" complex networks"> complex networks</a>, <a href="https://publications.waset.org/abstracts/search?q=output%20coupling" title=" output coupling"> output coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=pinning%20control" title=" pinning control"> pinning control</a> </p> <a href="https://publications.waset.org/abstracts/38055/anti-phase-synchronization-of-complex-delayed-networks-with-output-coupling-via-pinning-control" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38055.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">394</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3176</span> Designing Equivalent Model of Floating Gate Transistor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Birinderjit%20Singh%20Kalyan">Birinderjit Singh Kalyan</a>, <a href="https://publications.waset.org/abstracts/search?q=Inderpreet%20Kaur"> Inderpreet Kaur</a>, <a href="https://publications.waset.org/abstracts/search?q=Balwinder%20Singh%20Sohi"> Balwinder Singh Sohi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, an equivalent model for floating gate transistor has been proposed. Using the floating gate voltage value, capacitive coupling coefficients has been found at different bias conditions. The amount of charge present on the gate has been then calculated using the transient models of hot electron programming and Fowler-Nordheim Tunnelling. The proposed model can be extended to the transient conditions as well. The SPICE equivalent model is designed and current-voltage characteristics and Transfer characteristics are comparatively analysed. The dc current-voltage characteristics, as well as dc transfer characteristics, have been plotted for an FGMOS with W/L=0.25μm/0.375μm, the inter-poly capacitance of 0.8fF for both programmed and erased states. The Comparative analysis has been made between the present model and capacitive coefficient coupling methods which were already available. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FGMOS" title="FGMOS">FGMOS</a>, <a href="https://publications.waset.org/abstracts/search?q=floating%20gate%20transistor" title=" floating gate transistor"> floating gate transistor</a>, <a href="https://publications.waset.org/abstracts/search?q=capacitive%20coupling%20coefficient" title=" capacitive coupling coefficient"> capacitive coupling coefficient</a>, <a href="https://publications.waset.org/abstracts/search?q=SPICE%20model" title=" SPICE model"> SPICE model</a> </p> <a href="https://publications.waset.org/abstracts/30822/designing-equivalent-model-of-floating-gate-transistor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30822.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">545</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3175</span> Defect Profile Simulation of Oxygen Implantation into Si and GaAs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Dahbi">N. Dahbi</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20B.%20Taleb"> R. B. Taleb </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study concerns the ion implantation of oxygen in two semiconductors Si and GaAs realized by a simulation using the SRIM tool. The goal of this study is to compare the effect of implantation energy on the distribution of implant ions in the two targets and to examine the different processes resulting from the interaction between the ions of oxygen and the target atoms (Si, GaAs). SRIM simulation results indicate that the implanted ions have a profile as a function of Gaussian-type; oxygen produced more vacancies and implanted deeper in Si compared to GaAs. Also, most of the energy loss is due to ionization and phonon production, where vacancy production amounts to few percent of the total energy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=defect%20profile" title="defect profile">defect profile</a>, <a href="https://publications.waset.org/abstracts/search?q=GaAs" title=" GaAs"> GaAs</a>, <a href="https://publications.waset.org/abstracts/search?q=ion%20implantation" title=" ion implantation"> ion implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=SRIM" title=" SRIM"> SRIM</a>, <a href="https://publications.waset.org/abstracts/search?q=phonon%20production" title=" phonon production"> phonon production</a>, <a href="https://publications.waset.org/abstracts/search?q=vacancies" title=" vacancies"> vacancies</a> </p> <a href="https://publications.waset.org/abstracts/97753/defect-profile-simulation-of-oxygen-implantation-into-si-and-gaas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/97753.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">184</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3174</span> Describing the Fine Electronic Structure and Predicting Properties of Materials with ATOMIC MATTERS Computation System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rafal%20Michalski">Rafal Michalski</a>, <a href="https://publications.waset.org/abstracts/search?q=Jakub%20Zygadlo"> Jakub Zygadlo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We present the concept and scientific methods and algorithms of our computation system called ATOMIC MATTERS. This is the first presentation of the new computer package, that allows its user to describe physical properties of atomic localized electron systems subject to electromagnetic interactions. Our solution applies to situations where an unclosed electron 2<em>p</em>/3<em>p</em>/3<em>d</em>/4<em>d</em>/5<em>d</em>/4<em>f</em>/5<em>f</em> subshell interacts with an electrostatic potential of definable symmetry and external magnetic field. Our methods are based on Crystal Electric Field (CEF) approach, which takes into consideration the electrostatic ligands field as well as the magnetic Zeeman effect. The application allowed us to predict macroscopic properties of materials such as: Magnetic, spectral and calorimetric as a result of physical properties of their fine electronic structure. We emphasize the importance of symmetry of charge surroundings of atom/ion, spin-orbit interactions (spin-orbit coupling) and the use of complex number matrices in the definition of the Hamiltonian. Calculation methods, algorithms and convention recalculation tools collected in ATOMIC MATTERS were chosen to permit the prediction of magnetic and spectral properties of materials in isostructural series. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=atomic%20matters" title="atomic matters">atomic matters</a>, <a href="https://publications.waset.org/abstracts/search?q=crystal%20electric%20field%20%28CEF%29%20spin-orbit%20coupling" title=" crystal electric field (CEF) spin-orbit coupling"> crystal electric field (CEF) spin-orbit coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=localized%20states" title=" localized states"> localized states</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20subshell" title=" electron subshell"> electron subshell</a>, <a href="https://publications.waset.org/abstracts/search?q=fine%20electronic%20structure" title=" fine electronic structure"> fine electronic structure</a> </p> <a href="https://publications.waset.org/abstracts/45067/describing-the-fine-electronic-structure-and-predicting-properties-of-materials-with-atomic-matters-computation-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45067.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">319</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3173</span> Substrate Coupling in Millimeter Wave Frequencies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vasileios%20Gerakis">Vasileios Gerakis</a>, <a href="https://publications.waset.org/abstracts/search?q=Fontounasios%20Christos"> Fontounasios Christos</a>, <a href="https://publications.waset.org/abstracts/search?q=Alkis%20Hatzopoulos"> Alkis Hatzopoulos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A study of the impact of metal guard rings on the coupling between two square metal pads is presented. The structure is designed over a bulk silicon substrate with epitaxial layer, so the coupling through the substrate is also involved. A lightly doped profile is adopted and is simulated by means of an electromagnetic simulator for various pad distances and different metal layers, assuming a 65 nm bulk CMOS technology. The impact of various guard ring design (geometrical) parameters is examined. Furthermore, the increase of isolation (resulting in reduction of the noise coupling) between the pads by cutting the ring, or by using multiple rings, is also analyzed. S parameters are used to compare the various structures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=guard%20rings" title="guard rings">guard rings</a>, <a href="https://publications.waset.org/abstracts/search?q=metal%20pad%20coupling" title=" metal pad coupling"> metal pad coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=millimeter%20wave%20frequencies" title=" millimeter wave frequencies"> millimeter wave frequencies</a>, <a href="https://publications.waset.org/abstracts/search?q=substrate%20noise" title=" substrate noise"> substrate noise</a>, <a href="https://publications.waset.org/abstracts/search?q=" title=" "> </a> </p> <a href="https://publications.waset.org/abstracts/26875/substrate-coupling-in-millimeter-wave-frequencies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26875.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">539</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3172</span> Comparison Analysis of CFD Turbulence Fluid Numerical Study for Quick Coupling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=JoonHo%20Lee">JoonHo Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=KyoJin%20An"> KyoJin An</a>, <a href="https://publications.waset.org/abstracts/search?q=JunSu%20Kim"> JunSu Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Young-Chul%20Park"> Young-Chul Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the fluid flow characteristics and performance numerical study through CFD model of the Non-split quick coupling for flow control in hydraulic system equipment for the aerospace business group focused to predict. In this study, we considered turbulence models for the application of Computational Fluid Dynamics for the CFD model of the Non-split Quick Coupling for aerospace business. In addition to this, the adequacy of the CFD model were verified by comparing with standard value. Based on this analysis, accurate the fluid flow characteristics can be predicted. It is, therefore, the design of the fluid flow characteristic contribute the reliability for the Quick Coupling which is required in industries on the basis of research results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CFD" title="CFD">CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</a>, <a href="https://publications.waset.org/abstracts/search?q=quick%20coupling" title=" quick coupling"> quick coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=turbulence" title=" turbulence"> turbulence</a> </p> <a href="https://publications.waset.org/abstracts/31538/comparison-analysis-of-cfd-turbulence-fluid-numerical-study-for-quick-coupling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31538.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> 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