Barium

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Barium is a chemical element with the symbol Ba and atomic number 56. (Wikipedia.org)






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2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)

Ferroelectric materials and applications


2019 IEEE 16th International Symposium on Biomedical Imaging (ISBI)

The IEEE International Symposium on Biomedical Imaging (ISBI) is the premier forum for the presentation of technological advances in theoretical and applied biomedical imaging.ISBI 2019 will be the 16th meeting in this series. The previous meetings have played a leading role in facilitating interaction between researchers in medical and biological imaging. The 2019 meeting will continue this tradition of fostering cross fertilization among different imaging communities and contributing to an integrative approach to biomedical imaging across all scales of observation.


2019 IEEE 69th Electronic Components and Technology Conference (ECTC)

premier components, packaging and technology conference


2019 IEEE International Symposium on Information Theory (ISIT)

Information theory and coding theory and their applications in communications and storage, data compression, wireless communications and networks, cryptography and security, information theory and statistics, detection and estimation, signal processing, big data analytics, pattern recognition and learning, compressive sensing and sparsity, complexity and computation theory, Shannon theory, quantum information and coding theory, emerging applications of information theory, information theory in biology.


2018 48th European Microwave Conference (EuMC)

The Premier European event for the disemination of knowledge about Microwave Technology.The event caters for the seasoned industrial engineer as well as the graduate student. Sessionsand workshops are held on the full range of microwave technology from field theory, throughcomponents and subsystems to systems.

  • 2017 47th European Microwave Conference (EuMC)

    The Premier European event for the disemination of knowledge about Microwave Technology.The event caters for the seasoned industrial engineer as well as the graduate student. Sessions and workshops are held on the full range of microwave technology from field theory, through components and subsystems to systems.

  • 2016 46th European Microwave Conference (EuMC)

    The Premier European event for the disemination of knowledge about Microwave Technology. The event caters for the seasoned industrial engineer as well as the graduate student. Sessions and workshops are held on the full range of microwave technology from field theory, through components and subsystems to systems.

  • 2015 European Microwave Conference (EuMC 2015)

    The 45th European Microwave Conference (EuMC) represents the main event in the European Microwave Week 2015, the largest event in Europe dedicated to microwave components, systems and technology. It is the premier event to present the current status and future trends in the field of microwave, millimeter-wave and terahertz systems and technologies. A broad range of high frequency related topics, from materials and technologies to integrated circuits, systems and applications will be addressed in all their aspects: theory, simulation, design and measurement.The European Microwave Conference provides many opportunities of networking and interaction with international experts in a wide variety of specialties, attracting delegates with academic as well as industrial backgrounds. In addition to scientific papers, contributions on industrial applications are also encouraged, covering the fields of instrumentation, medical, telecommunication, radar, space, automotive and defense systems.

  • 2014 44th European Microwave Conference (EuMC)

    EuMC is the premier European conference in the microwave field, which represent the ideal venue for prospective authors to present the status and trends in microwave and millimetre-wave systems and frequency related topics, from materials and technologies to integrated circuits, systems their aspects: theory, simulation, design and measurement including passive components, design of high frequency and high data rate photonics, highly stable and noiseless microwave wave sources, new linearisation techniques and the impact of new packaging technologies.

  • 2013 European Microwave Conference (EuMC)

    Status and trends in microwave and millimetre -wave systems and technologies. High-frequency related topics, from materials and technologies to integrated circuits, systems and applications in alltheir aspects: theory, simulation, design and measurement including passive components, modelling and design of high frequency and high data rate photonics, highly stable and noiseless microwave and millimetre-wave sources, new linearisation techniques and the impact of new packaging technologies on development

  • 2012 European Microwave Conference (EuMC)

    Microwave and millimeter wave: active/passive devices, antennas, electromagnetics, bio-interaction, circuits, manufacturing and measurement, MEMS, meta-materials, sensor networks, cognitive radio, 4G communications, space technology and applications.

  • 2011 European Microwave Conference (EuMC)

    Status and trends in microwave and millimetre-wave systems and technologies. High-frequency related topics, from materials and technologies to integrated circuits, systems and applications in all their aspects: theory, simulation, design and measurement including passive components, modelling and design of high frequency and high data rate photonics, highly stable and noiseless microwave and millimetre-wave sources, new linearisation techniques and the impact of new packaging technologies on development app

  • 2010 European Microwave Conference (EuMC)

    The European Microwave Conference is the premier forum for presentation of the present status and future trends in the field of microwave, millimetre- and submillimetre-wave systems and technologies.

  • 2009 European Microwave Conference (EuMC)

    The 39th European Microwave Conference (EuMC), is the core of the European Microwave Week 2009, the largest event in Europe dedicated to microwave electronics. It is the premier forum to present the actual status and future trends in the field of materials and technologies to integrated circuits, systems and applications will be addressed in all their aspects: theory, simulation, design and measurement.

  • 2008 European Microwave Conference (EuMC)

    The 38th European Microwave Conference (EuMC) in Amsterdam, The Netherlands, from 27 to 31 October, is the core of the European Microwave Week 2008, the largest event in Europe dedicated to microwave electronics. It is the premier forum to present the actual status and future trends in the field of materials and technologies to integrated circuits, systems and applications will be addressed in all their aspects: theory, simulation, design and measurement.

  • 2007 European Microwave Conference (EuMC)

    Status and trends in microwave and millimetre-wave systems and technologies. High-frequency related topics, from materials and technologies to integrated circuits, systems and applications in all their aspects: theory, simulation, design and measurement including passive components, modelling and design of high frequency and high data rate photonics, highly stable and noiseless microwave and millimetre-wave sources, new linearisation techniques and the impact of new packaging.

  • 2006 European Microwave Conference (EuMC)

  • 2005 European Microwave Conference (EuMC)

  • 2004 European Microwave Conference (EuMC)

  • 2003 European Microwave Conference (EuMC)

  • 1998 28th European Microwave Conference (EuMC)

  • 1997 27th European Microwave Conference (EuMC)


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Periodicals related to Barium

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Components and Packaging Technologies, IEEE Transactions on

Component parts, hybrid microelectronics, materials, packaging techniques, and manufacturing technology.


Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


Electromagnetic Compatibility, IEEE Transactions on

EMC standards; measurement technology; undesired sources; cable/grounding; filters/shielding; equipment EMC; systems EMC; antennas and propagation; spectrum utilization; electromagnetic pulses; lightning; radiation hazards; and Walsh functions


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Xplore Articles related to Barium

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Development of Low-Fluorine Solution for YBCO Film Growth

IEEE Transactions on Applied Superconductivity, 2016

We developed a simple and stable precursor solution containing low fluorine content to fabricate YBa2Cu3Oy(YBCO) films on CeO2/YSZ/CeO2buffered NiW substrates. The fluorine content in the precursor solution could be controlled at 23.1% by tuning the ratio of barium trifluoroacetate to barium acetate. Fast pyrolysis process and smooth surface of YBCO precursor films could be acquired by using the low-fluorine solution. ...


Superconducting Antennas

Small Antenna Handbook, None

This chapter contains sections titled: * Introduction * Superconductivity Concepts for Antenna Engineers * Dipole, Loop, and Patch Antennas * Phasers and Delay Lines * Superconducting Antenna Summary * References


Range in Cation Ratio of<inline-formula><tex-math notation="LaTeX">$\text{YBa}_{2}\text{Cu}_{3}\text{O}_{7-\delta}$</tex-math></inline-formula>Crystallized From Liquids

IEEE Transactions on Applied Superconductivity, 2015

The primary phase field of YBa2Cu3O7-δ(Y123) is roughly triangular (with curvilinear boundaries). Apices of the triangle are the maximum at which liquid, Y123, and Y2BaCuO5(Y211) coexist and those ternary invariant points at which liquid, Y123, Y211, and either CuO or BaCuO2coexist. The ternary eutectic lies on the low-temperature side of the triangle. Melting experiments around this primary phase field allow ...


Phase transition during sintering process before nucleation of TFA-MOD YBa2Cu3O7-δ films

2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD), 2015

In order to bring new insights to the transformation mechanism of intermediate phase and its dependence on processing conditions via trifluoroacetate metal organic deposition (TFA-MOD) method, a series of quenching experiments with different annealing temperature and atmospheres were designed. It was revealed that the transformation temperature of Ba-Y-F solid solution was lower with increasing the partial pressure of water. Calculation ...


A note on trace polynomial

Tsinghua Science and Technology, 2007

In this paper, we mainly study the relation of two cyclically reduced words wand w' on the condition they have the same trace polynomial (i.e., tr w = trw'). By defining an equivalence relation through such operators on words as inverse, cyclically left shift, and mirror, it is straightforward to get that w∼w' implies tr w = trw'. We show ...


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IEEE-USA E-Books

  • Development of Low-Fluorine Solution for YBCO Film Growth

    We developed a simple and stable precursor solution containing low fluorine content to fabricate YBa2Cu3Oy(YBCO) films on CeO2/YSZ/CeO2buffered NiW substrates. The fluorine content in the precursor solution could be controlled at 23.1% by tuning the ratio of barium trifluoroacetate to barium acetate. Fast pyrolysis process and smooth surface of YBCO precursor films could be acquired by using the low-fluorine solution. The phase, texture, microstructure, and superconducting properties of YBCO film were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscope, and four-probe method, respectively. The crystallized YBCO film showed good out-of-plane and in-plane textures. A high critical current density Jcof ~3 MA/cm2(77 K, 0 T) could be obtained in the YBCO/CeO2/YSZ/CeO2/NiW sample derived from the low-fluorine solution. The results indicate that the controllable fluorine content solution could be useful for epitaxial growth of YBCO films on buffered NiW substrates.

  • Superconducting Antennas

    This chapter contains sections titled: * Introduction * Superconductivity Concepts for Antenna Engineers * Dipole, Loop, and Patch Antennas * Phasers and Delay Lines * Superconducting Antenna Summary * References

  • Range in Cation Ratio of<inline-formula><tex-math notation="LaTeX">$\text{YBa}_{2}\text{Cu}_{3}\text{O}_{7-\delta}$</tex-math></inline-formula>Crystallized From Liquids

    The primary phase field of YBa2Cu3O7-δ(Y123) is roughly triangular (with curvilinear boundaries). Apices of the triangle are the maximum at which liquid, Y123, and Y2BaCuO5(Y211) coexist and those ternary invariant points at which liquid, Y123, Y211, and either CuO or BaCuO2coexist. The ternary eutectic lies on the low-temperature side of the triangle. Melting experiments around this primary phase field allow documentation of the composition range in Y123 formed in equilibrium with a liquid and in pure O2. The highest temperature around the primary phase field is 1027°C; Y123 there is the most V-rich (Cu: V slightly below 3). Liquids in equilibrium with Y123 and V211 descend from the maximum to an invariant point at 955°C at which CuO also forms. Ba: Y of Y123 decreases to 1.88; Cu: Y remains near 3. Liquids in equilibrium with Y123 and CuO join that invariant point to the eutectic (L = Y123 + CuO + BaCuO2). Y123 on the coprecipitation curve increases in Cu : V to a maximum at the 910°C eutectic (Cu : Y = 3.28). Cu: Y of Y123 along the other circuit of the triangle has limited variation but decreases to 2.96 near the invariant point at which BaCuO2joins the crystallizing assemblage. These are greater variations in cation composition than previously documented and raise issues of how superconducting properties of Y123 vary with cation composition.

  • Phase transition during sintering process before nucleation of TFA-MOD YBa2Cu3O7-δ films

    In order to bring new insights to the transformation mechanism of intermediate phase and its dependence on processing conditions via trifluoroacetate metal organic deposition (TFA-MOD) method, a series of quenching experiments with different annealing temperature and atmospheres were designed. It was revealed that the transformation temperature of Ba-Y-F solid solution was lower with increasing the partial pressure of water. Calculation results of the Gibbs free energy change with different partial pressure of HF and H<sub>2</sub>O illustrated that the intermediate process is dominated by the exit diffusion of fluorine and the higher concentration of HF will inhibit the hydrolysis of barium fluoride.

  • A note on trace polynomial

    In this paper, we mainly study the relation of two cyclically reduced words wand w' on the condition they have the same trace polynomial (i.e., tr w = trw'). By defining an equivalence relation through such operators on words as inverse, cyclically left shift, and mirror, it is straightforward to get that w∼w' implies tr w = trw'. We show by a counter example that tr w = tr w' does not imply w ∼ w'. And in two special cases, we prove that tr w = tr w' if and only if w ∼ w'.

  • Controlled-Growth of<inline-formula><tex-math notation="TeX">$\hbox{YBa}_{2}\hbox{Cu}_{3}\hbox{O}_{7-\delta} $</tex-math></inline-formula>Film Using Modified Low-Fluorine Chemical Solution Deposition

    Various precursor solutions with different fluorine content have been developed, including the conventional low-fluorine (CLF) solution with fluorine content of 54% (F-54%), the super low-fluorine (SLF) solution with F-31% and the extreme low-fluorine (ELF) solution with F-7% in contrast to the all trifluoroacetates (All-TFA) solution with F-100%. The DTA analysis shows that the precursor solution with lower fluorine content endures a faster pyrolysis rate. The influence of pyrolysis rate on the microstructure and transport properties of YBa2Cu3O7-δ(YBCO) films prepared by various low- fluorine (LF) solutions was investigated, revealing that smooth and homogeneous YBCO films can be achieved with high-rate decomposition process in the case of LF solutions. Also, high-performance YBCO films can be obtained at 5 °C/min using CLF solution or 20 °C/min using ELF solution. Subsequently, the superconducting properties and production rate of YBCO film are improved effectively in the case of various LF solutions, suggesting a promising route to scale up and rapid preparation of YBCO coated conductors.

  • Measurement of PEOS plasma temperatures and densities using laser induced fluorescence

    None

  • Complexity of public transport networks

    The theory of complex networks was used to classify public transport networks into public transportation route networks, public transportation transfer networks, and bus station networks. The practical significance of the network parameters was then analyzed. The public transport networks in Langfang, Jining, and Dalian were then chosen as specific research cases. The results show that the public transportation networks have the characteristics of complex networks. In addition, the urban transportation network parameters all significantly affect the accessibility, convenience, and terrorist security capability of the urban public transportation network. The results link the findings with the actual situations to explore means to solve transportation system problems.

  • Effect of Sol-Gel Derived Nano-Scale<formula formulatype="inline"><tex Notation="TeX">${\hbox{Y}}_{2}{\hbox{Ba}}_{4}{\hbox{CuAgO}}_{\rm y}$</tex></formula>Addition in Bulk Y-Ba-Cu-O Superconductors

    This study reports a new method to prepare Y-Ba-Cu-O (YBCO) bulk superconductors with high critical current density (Jc). With the addition of 1 mol% Y2Ba4CuAgOy(Y24Ag1) nanoparticles, the Jcat 77 K of YBCO bulk is ~ 5.8 × 104A cm-2, while that of the sample without the addition is ~ 1.5 × 104A cm-2, which reflects about 4 times the enhancement. The above Y24Ag1 nano- particles were prepared by a sol-gel process of mixing metal nitrate with a polyacrylic acid (PAA) solution as precursors, followed by heating at 1000°C for 3 h. X-ray diffraction (XRD) analysis indicated that the Y24Ag1 precursor particles are well crystallized with an average cluster size of 0.67 μm . In the as-grown single grain melt-textured sample, Y24Ag1 nano particles with the size of 10-20 nm were found to be homogeneously distributed in the YBa2Cu3O7-δ(Y123) matrix. On the other hand, the Y2BaCuO5(Y211) remained micro-sized, which was not changed by the addition of Y24Ag1 nano particles.

  • Composition Effects on the Critical Current of MOCVD-Processed Zr:GdYBCO Coated Conductors in an Applied Magnetic Field

    Zr:GdYBCO films were grown by reel-to-reel metal organic chemical vapor deposition (MOCVD) on hastelloy tapes with IBAD-MgO-based buffer. The composition was varied systematically to investigate the effects of changes in (Gd+Y)/Ba, (Gd+Y)/Cu and Gd/Y ratios and Zr-doping concentration on the critical current density (J<sub>c</sub>) of the films in an applied magnetic field (B). The magnetic-field-angle dependence of J<sub>c</sub> measured at 77 K and 1 T showed that (1) for Gd+Y content ranging from 1.2 to 1.5, the minimum J<sub>c</sub> for any angle did not vary significantly with the Gd+Y content; while the J<sub>c</sub> at B//c varied significantly and took its maximum value at Gd+Y content of 1.2; (2) increasing Gd+Y could suppress or level off the J<sub>c</sub> peak at B//c which was associated with the pinning from BaZrO<sub>3</sub> nano-columns; (3) the optimum Zr-concentration for the highest J<sub>c</sub>(77 K, 1 T) is in the range of 0.04-0.07 in the film; in this range under certain growth condition, the c-peak in the angular dependence of J<sub>c</sub> could be higher than the ab-peak; (4) increasing Gd/Y ratio increased J<sub>c_min</sub>(77 K, 1 T); (5) in self-field or low field, however, the optimized Gd/Y ratio was about 1.



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