27 research outputs found
Adoption of a process-orientated organisation and "status indicator for network operations" to optimise asset management
No full textItaly-Austria GIL in the new planned railway galleries Fortezza-Innsbruck under Brenner Pass
No full textThe paper deals with the possibility of installing a double-circuit Gas Insulated transmission Line (GIL) in the pilot tunnel of the new planned railway galleries Fortezza-Innsbruck. The high GIL power ratings with very low power losses would allow a strong and highly efficient energy exchange particularly useful for the future European Market and could represent a new fundamental step in reconstructing the European interconnection network. Two separate railway tunnels (Φ ≈ 9,6 m) will run under the Brenner Pass from Fortezza (Italy) to Innsbruck (Austria) but will be preceded by the construction of a continuous pilot tunnel (Φ ≈ 4,3 m) useful for work logistics and chiefly for detection of the rock stratigraphy. Once the whole work will be over, the pilot tunnel will be used as a service gallery (drainage of water) where a double-circuit GIL can be efficiently installed. The paper gives the main characteristics of planned galleries, several details on the transmission line and its performance, the electro-magnetic field impact considering the proximity effects and the earthing arrangement in order to zero the touch-voltages in case of phase-to-enclosure short-circuit. The chief features of GIL solution are the lowest transmission power losses and the absence of shunt reactive compensation for this line length (appr. 65 km) but mostly the safety of personnel in case of short-circuit and the possibility of usual re-closure cycles for operation continuity. This paper gives an overview of other analysis: GIL no-load regime, electromagnetic interferences between railway and GIL system, pilot tunnel ventilation and GIL thermal regime. In order to achieve satisfying power flows, the new link requires both Italian/Austrian regional grids (380 kV÷110 kV) to be restructured and rationalised. This research is supported by European Community in the framework of TEN-ENERGY programme for analysing both, technical and environmental issues of integrating 380 kV Gas Insulated transmission Line and Rail Transport in tunnel between Italy and Austria entitled "Studies for a new 380 kV transmission line between Italy and Austria through the Brenner pass: Integration of Electricity and Rail Transport in Tunnel". The project leader is TERNA (Italian TSO) whereas the associated beneficiaries are the University of Padova and TIWAG-Netz AG (Tyrol TSO) with support of Graz University of Technology
Rational Design of Two‐Dimensional Bimetallic Wave Structures from Zigzag Chains via Site‐Specific Coordination around the 2,6‐Naphthalenediphosphonic Acid Motif
No full textYucesan, Gundog/0000-0002-5105-7280; Zorlu, Yunus/0000-0003-2811-1872; Worle, Michael/0000-0001-8087-5779; Pasa, Salih/0000-0002-4792-8821; Beckmann, Jens/0000-0002-8548-1821We report the synthesis of a novel aromatic 2,6-naphthalenediphosphonic acid (2,6-NDPA-H-4) and the rational design of molecular, one-, two-, and three-dimensional structures of the resulting copper organophosphonate materials: [{Cu(terpy)}(2,6-NDPA-H-3)][{Cu(terpy)}(2,6-NDPA-H-3)(2,6-NDPA-H-2)]center dot 3H(2)O (2), [{Cu(terpy)}VO2(2,6-NDPA-H)]center dot H2O (4), [{Cu-(terpy)} VO2(2,6-NDPA-H)] (3) and [{Cu(H2O)}(NDPA)(0.5)] (1). Engineering the copper coordination sphere and pH-controlled phosphonate protonation enabled the site specific dimensional evolution of CuII-organophosphonate frameworks exploiting the 2deprotonated phosphonate oxygen arms.TUBITAK (the Scientific and Technical Research Council of Turkey)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [212T060]; European Union (EU), COST action [TD 1304]This work has been supported by the TUBITAK (the Scientific and Technical Research Council of Turkey) (grant number 212T060) and the European Union (EU), TD 1304, COST action. Ramazan Topkaya and Prof. Dr. Bekir Aktas are thanked for their help with the magnetic measurements
1956 Jay-Cee-An - Page 36
No full textPhotograph of the BJC football teamFOOTBALL
74 32 1 36 17 24
ROW ONE: M. Haluzak, B. Vollan, J. Flynn, J. Hoffman, S. Upham, D. Dwyer, N. Rolfe. ROWTWO: J. Dwyer,
E. Brown, K. Tokach, G. Werner, K. Ryan, W. Beers, J. Schumacher. ROWTHREE: Coach Karlgaard, J. Clark,
R. Tokach, G. Christianson, D. Beers, E. Schneider, G. Stelzmtlle r, R. Berger, H. Falconer. NOT PICTURED:
G. Upham, A. Wolfer, K. Boatright, E. Duffey, G. Worle.
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Synthesis of Cu(II)-Organophosphonate Framework with Predefined Void Spaces
No full textHere we report the first utilization of the novel methane tetra-p-phenylphosphonic acid (MTPPA) ligand for the preparation of metal complexes with Cu(II). The hydrothermal and solvothermal reactions of tetratopic MTPPA as a bridging ligand in conjunction with the square pyramidal {Cu(terpy)}(2+) and {Cu-2(pbterpy)}(4+), (where terpy = 2,2':6',2 ''-Terpyridine and pbterpy = 4',4 ''''-(1,4-Phenylene)-bis(2,2':6',2 ''-terpyridine)) as prefixed corner building units have produced one-dimensional [{Cu(terpy)}(2)(MTPPA-H-5) (MTPPA-H-6)]center dot(4.2H(2)O)(H3O) (1) and two-dimensional [{Cu-2(pbterpy)}MTPPA-H-4] (2), respectively. The structures were characterized by single crystal X-ray diffraction and TGA
From 0 to II in one-electron steps: a series of ruthenium complexes supported by tropPPh2
No full textWe report the synthesis of a series of ruthenium complexes supported by the phosphine olefin ligand tropPPh2 (trop=5-H-dibenzo-[a,d]cyclohepten-5-yl) in the oxidation states 0, +I, and +II, formed via successive one-electron oxidization steps from Ru(0) (tropPPh2 )2 . The bidentate character of the tropPPh2 ligand and its steric hindrance force the complexes to adopt uncommon geometries, which were investigated by X-ray diffraction analysis. EPR data of the mononuclear Ru(I) complex reveal couplings of the unpaired spin with the ruthenium and two phosphorus nuclei, as well as the olefinic protons which show that the spin is mainly localized on the Ru(I) center
Synthesis, characterization, UV-Vis absorption and cholinesterase inhibition properties of bis-indolyl imine ligand systems
No full textA number of bis-indolyl imine helical structures has successfully been synthesized employing Schiff base reaction conditions starting from 4,6-dimethoxy-2,3-diphenylindole with different o-phenyl diamines as pi-spacer bridged. The structures of targeted compounds were identified by FT-IR, mass, H-1 and C-13 NMR spectroscopy along with single crystal X-ray diffraction techniques. The ground state absorption properties of the bis-indolyl compounds were also investigated utilizing UV-Vis absorption spectroscopy. As the biological aspect of the synthesized compounds, the anticholinesterase potency was investigated towards the acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes. The highest inhibition was determined in the presence of compound 9 with the values of 89.21 and 96.06, better than standard Galantamine, for AChE and BChE, respectively. (C) 2020 Elsevier B.V. All rights reserved.Research Found of the Gebze Technical University [2019-A-105-37]This work has been supported by Research Found of the Gebze Technical University (Project Number: 2019-A-105-37). We thank to Dr. Michael Dieter Worle for his support in refining compound 10
An evaluation of the key skills 2000 curriculum in the further education sector and its effects on students' motivation for learning at foundation level
No full textKey Skills (KS), a component of Curriculum 2000 (C2000) was introduced by government in September 2000 as a range of essential generic, transferable skills that underpin success in education, employment, lifelong learning and personal development. C2000 was introduced into Further Education (FE) colleges to replace the core skills (CS) which had, up to then, been integrated or attached to vocational course structures. KS are different in nature from CS. KS are evidenced, assessed and examined separately from vocational courses and therefore, because of their standalone nature, are attached to the vocational students, not to their courses. This research is an evaluation of the conceptual coherence and practical viability of the KS curriculum (KS2000), as introduced and implemented within the further education sector. The study investigates issues for tutors delivering KS and its effects on their foundation students’ motivation for learning. Eleven case-studies were carried out across one academic year within seven FE colleges in Southern England. The nature, provenance and purpose of KS2000 are explored, and the origin and rationale for KS are examined through an analysis of the concept of the ‘skills’ component on which it is founded. The framework of illuminative evaluation was adopted and ethnographic methods of interviews and observations employed. Progressive focussing, used in conjunction with a grounded theory approach of treating the literature as part of the collection of data, gave some capacity for theory-building. The thesis found that all college staffs, both KS and vocational, whilst agreeing that KS were remedial in nature, held different opinions as to what KS were and of what value the KS2000 was to the foundation students. KS tutors believed they provided students with a basis for opportunities to acquire important ‘skills’ for their future, but most vocational staff did not and were even opposed to their being delivered in the context of FE. KS managers agreed that KS should not have to be provided by the FE sector. Members from all groups of participants reported having large numbers of school-leavers entering their colleges with poor levels of basic maths and English. Supplying adequate tutoring and support for such students was demanding for management and stressful for many KS tutors. The students were socialised into accepting that their future employment depended on KS and a majority were positive in their belief that they could achieve them. However, in spite of government funding to provide KS2000, great effort from all staffs to implement the curriculum and students’ apparent motivation and self-belief, many students were observed behaving badly in class and KS qualification rates generally remained poo
The genome sequence of Taurine cattle: a window to ruminant biology and evolution
No full textDavid L. Adelson is a member of The Bovine Genome Sequencing and Analysis Consortium.To understand the biology and evolution of ruminants, the cattle genome was sequenced to about sevenfold coverage. The cattle genome contains a minimum of 22,000 genes, with a core set of 14,345 orthologs shared among seven mammalian species of which 1217 are absent or undetected in noneutherian (marsupial or monotreme) genomes. Cattle-specific evolutionary breakpoint regions in chromosomes have a higher density of segmental duplications, enrichment of repetitive elements, and species-specific variations in genes associated with lactation and immune responsiveness. Genes involved in metabolism are generally highly conserved, although five metabolic genes are deleted or extensively diverged from their human orthologs. The cattle genome sequence thus provides a resource for understanding mammalian evolution and accelerating livestock genetic improvement for milk and meat production.The Bovine Genome Sequencing and Analysis Consortium, Christine G. Elsik, Ross L. Tellam, Kim C. Worle
