1,330 research outputs found

    Virtual EQ – the talent differentiator in 2020?

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    In an increasingly competitive, globalised world, knowledge-intensive industries/ services are seen as engines for success. Key to this marketplace is a growing army of ‘talent’ i.e. skilled and dedicated knowledge workers. These knowledge workers engage in non-routine problem solving through combining convergent, divergent and creative thinking across organizational and company boundaries - a process often facilitated though the internet and social media, consequently forming networks of expertise. For knowledge workers, sharing their learning with others through communities of practice embedded in new information media becomes an important element of their personal identity and the creation of their individual brand or e-social reputation. Part of the new knowledge/skills needed for this process becomes not only emotional intelligence (being attuned to the emotional needs of others) but being able to do this within and through new media, thus the emergence of virtual emotional intelligence (EQ). Our views of current research found that HRD practitioners in 2020 might need to consider Virtual EQ as part of their talent portfolio. However it seems that new technology has created strategies for capturing and managing knowledge that are readily duplicated and that a talent differentiator in 2020 might simply be the ability and willingness to learn

    Magnetic phase diagram of Fe1.1Te1-xSex: A comparative study with the stoichiometric superconducting FeTe1-xSex system

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    We report a comparative study of the series Fe1.1Te1-xSex and the stoichiometric FeTe1-xSex to bring out the difference in their magnetic, superconducting and electronic properties. The Fe1.1Te1-xSex series is found to be magnetic and its microscopic properties are elucidated through Moessbauer spectroscopy. The magnetic phase diagram of Fe1.1Te1-xSex is traced out and it shows the emergence of spin-glass state when the antiferromagnetic state is destabilized by the Se substitution. The isomer shift and quadrupolar splitting obtained from the Moessbauer spectroscopy clearly brings out the electronic differences in these two series.Comment: 6 pages, 9 figure

    The structure of epitaxial V2O3 films and their surfaces : a medium energy ion scattering study

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    Medium energy ion scattering, using 100 keV H+ incident ions, has been used to investigate the growth of epitaxial films, up to thicknesses of ~200 Å, of V2O3 on both Pd(111) and Au(111). Scattered-ion energy spectra provide a measure of the average film thickness and the variations in this thickness, and show that, with suitable annealing, the crystalline quality is good. Plots of the scattering yield as a function of scattering angle, so-called blocking curves, have been measured for two different incidence directions and have been used to determine the surface structure. Specifically, scattering simulations for a range of different model structures show poor agreement with experiment for half-metal (….V’O3V) and vanadyl (….V’O3V=O) terminations, with and without surface interlayer relaxations. However, good agreement with experiment is found for the modified oxygen-termination structure, first proposed by Kresse et al., in which a subsurface V half-metal layer is moved up into the outermost V buckled metal layer to produce a VO2 overlayer on the underlying V2O3, with an associated layer structure of ….O3VV’’V’O3

    Methylthiolate-induced reconstruction of Ag(1 1 1): A medium energy ion scattering study

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    Medium energy ion scattering (MEIS), using 100 keV H+ incident ions, has been used to investigate the structure of the Ag(1 1 1)(√7 × √7)R19° –CH3S surface phase. The results provide the first direct evidence that this structure does involve substantial reconstruction of the Ag surface layer. The measured absolute scattered ion yields and blocking curves are in generally good agreement with a specific structural model of the surface based on a reconstructed layer containing 3/7 ML Ag atoms, previously suggested on the basis of scanning tunnelling microscopy (STM) and normal incidence X-ray standing wave (NIXSW) studies. However, the MEIS data indicate that any rumpling of the thiolate layer, is small, and probably 0.2 Å. This value is smaller than the amplitude suggested in the STM and NIXSW studies, but could be entirely consistent with the earlier experimental data

    Nickel coatings by Inductively Coupled Impulse Sputtering (ICIS)

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    Inductively Coupled Impulse Sputtering (ICIS) removes the need for a magnetron, whilst delivering equal or higher ion-to-neutral ratios compared to other ionised PVD technologies such as High Power Impulse Magnetron Sputtering (HIPIMS). This is especially advantageous for the sputtering of magnetic materials, as these would shunt the magnetic field of the magnetron, thus reducing the efficiency of the sputtering and ionisation process. ICIS produces highly ionised metal-dominated plasma inside a high power pulsed RF-coil with a magnet free high voltage pulsed DC powered cathode. ICIS operation with magnetic target materials has not been attempted so far. The paper aims to clarify the effects of power and pressure on the chemistry of the deposition flux and is the first investigation of the microstructure of ICIS deposited coatings. Modelling based on the intensity of the optical emission spectra (OES) is conducted for the first time on the excited species of Ni and Ar in relation to the applied RF-power. Sputtered species show a linear intensity increase for increasing peak RF-power and constant process gas pressure. The influence of increasing process gas pressure on the ionisation was studied at a constant peak RF-power for pressures. For pressures below 8 Pa the intensity rises, but then remains constant for pressures up to 26 Pa. The microstructure of Ni coatings shows columnar dendritic or globular growth depending on the ionisation degree. In relation to the film thickness on the top of the substrate, the bottom coverage of unbiased vias with an aspect ratio of 4:1 was 15% and for lower aspect ratios of 1.5:1 was 47.5%. The current work has shown that the concept of combining a pulsed RF driven coil with a magnet-free pulsed DC powered cathode works well for the sputtering of magnetic material in a stable plasma

    Medium energy ion scattering studies of ultrathin epitaxial films

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    Medium energy ion scattering (MEIS) has been used to investigate ultrathin epitaxial films. The depth profiles of V2O3(0001) films grown on Pd(111) were examined. The results from this demonstrated that on this substrate the films grown are highly non-uniform, with a large distribution of thicknesses observed for each prepared sample. V2O3(0001) films grown on Au(111) were found to form films with a much more even range of thicknesses, good enough to yield blocking curves. The experimental blocking curves obtained are not in good agreement with half-metal or vanadyl terminated structures favoured by most previous studies. Assuming that imperfections exist in the grown films produced better fits, however this lost surface sensitivity. The optimal structure found is an oxygen termination, proposed by a previous density functional theory (DFT) study. This structure is also found to be consistent with re-examined photoelectron diffraction (PhD) data. Ag2S films grown on Ag(111) were found to suffer severely from beam-induced damage, limiting quantity of obtained data. Unusually, an He+ beam was found to produce less severe effects than an H+ beam. Energy cuts were used to confirm, as proposed by an early Auger electron spectroscopy (AES) study, that the silver sulphide thickness continues to increase with increasing sulphur deposition onto Ag(111). The backscattered ion yields of the blocking curves increased with increasing film thickness, and no additional blocking features were present. These curves were found to be consistent with the structural model proposed by a previous normal incidence X-ray standing waves (NIXSW) study. p2gg(4 × 2)Mn/Cu(100) films were found to form with thicknesses far greater than the two layers anticipated by previous studies. The thick disordered layer precluded any structural analysis. The copper and manganese peaks could not be resolved, resulting in the only information obtained being about the thickness of the films

    Medium energy ion scattering studies of ultrathin epitaxial films

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    Medium energy ion scattering (MEIS) has been used to investigate ultrathin epitaxial films. The depth profiles of V2O3(0001) films grown on Pd(111) were examined. The results from this demonstrated that on this substrate the films grown are highly non-uniform, with a large distribution of thicknesses observed for each prepared sample. V2O3(0001) films grown on Au(111) were found to form films with a much more even range of thicknesses, good enough to yield blocking curves. The experimental blocking curves obtained are not in good agreement with half-metal or vanadyl terminated structures favoured by most previous studies. Assuming that imperfections exist in the grown films produced better fits, however this lost surface sensitivity. The optimal structure found is an oxygen termination, proposed by a previous density functional theory (DFT) study. This structure is also found to be consistent with re-examined photoelectron diffraction (PhD) data. Ag2S films grown on Ag(111) were found to suffer severely from beam-induced damage, limiting quantity of obtained data. Unusually, an He+ beam was found to produce less severe effects than an H+ beam. Energy cuts were used to confirm, as proposed by an early Auger electron spectroscopy (AES) study, that the silver sulphide thickness continues to increase with increasing sulphur deposition onto Ag(111). The backscattered ion yields of the blocking curves increased with increasing film thickness, and no additional blocking features were present. These curves were found to be consistent with the structural model proposed by a previous normal incidence X-ray standing waves (NIXSW) study. p2gg(4 × 2)Mn/Cu(100) films were found to form with thicknesses far greater than the two layers anticipated by previous studies. The thick disordered layer precluded any structural analysis. The copper and manganese peaks could not be resolved, resulting in the only information obtained being about the thickness of the films.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Pengaturan Koordinasi Proteksi Arus Lebih pada Sistem Kelistrikan di Kapal Tanker dengan Simulasi

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    Kontinuitas operasional pada sistem kelistrikan kapal tanker memiliki peran yang sangat penting. Oleh karena itu, meminimalisasi dampak yang ditimbulkan oleh gangguan yang terjadi harus dilakukan. Salah satu gangguan yang sering muncul adalah gangguan hubungan singkat dan beban berlebih yang kemudian menimbulkan arus berlebih dimana hal tersebut berpengaruh besar terhadap keamanan komponen – komponen operasional kapal tanker. Oleh sebab itu diperlukan adanya sistem koordinasi proteksi dengan tujuan untuk meminimalisir adanya gangguan pada sistem kelistrikan, salah satunya menggunakan circuit breaker. Circuit breaker dengan tipe solid trip dapat mengamankan arus lebih yang disebabkan oleh beban lebih dan hubungan singkat. Fokus pembahasan tugas akhir ini mengenai pengaturan koordinasi proteksi setiap circuit breaker pada komponen yang membutuhkan daya besar dengan arus hubungan singkat maksimal yaitu 1,06 kA pada cargo oil pump, 0,499 kA pada windlass, 0,48 kA pada bilge and ballast pump, 0,48 kA pada fire and GS pump, dan 0,467 kA pada cargo hose handling crane. Pemilihan circuit breaker yang langsung melindungi komponen menggunakan instantaneous pick up 0,06 detik. Semua generator sebaiknya memiliki tipe dan setting circuit breaker yang sama untuk memudahkan koordinasi proteksi. Circuit breaker untuk generator menggunakan setting 630 A untuk long time pick up dan 945 A untuk short time pick up. ========================================================================================================= Operational continuity in the tanker's electrical system has a very important role. Therefore, minimizing the impacts caused by the disturbances that occur should be done. The disturbance in the electrical system that often happen are over current which caused by short-circuit and overload. It will effect on the safety of components tanker ship’s operational. Therefore, it is necessary to have a protection coordination system to minimize the disturbance in the electrical system. Circuit breaker is the one of device protection in electrical system. Solid trip circuit breaker can be protection from short-circuit and overload disturbance. The focus of this topic are the setting of protection coordination in every circuit breaker which are need much power with the possibility of maximum short-circuit value such as 1,06 kA in cargo oil pump, 0,499 kA in windlass, 0,48 kA in bilge ballast pump and fire GS pump, and 0,467 kA in cargo hose handling crane. Circuit breaker for protect the components are using instantaneous pick up 0,06 seconds. All generators should have the same type and circuit breaker setting to make the coordination protection easier. This circuit breaker for generators are using 630 A for setting long time pick up and 945 A for setting short time pick up

    Primary, Secondary, and Other Credit Extensions Outstanding on Tuesday, May 27, 2008 by Remaining Term

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    Primary, Secondary, and Other Extensions of Credit

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