148,815 research outputs found
Joshua Davis: Author of Spare Parts
No full textCitation: K-State First (2016). Joshua Davis: Author of Spare Parts [Flier]. Manhattan, Kansas: K-State First.Flyer advertising Joshua Davis's author talk at Kansas State University
Steven Johnson Author Talk Poster
No full textK-State Book NetworkA poster advertising an author talk by Steven Johnson at Kansas State University on September 3, 2014. Steven Johnson's book "The Ghost Map" was the 2014-2015 common book
Bærekraft i Circle K Norge
No full textBacheloroppgave i Økonomi og administrasjon fra Handelshøyskolen BI, 2019I min bacheloroppgave ønsket jeg å knytte Circle K Norge og bærekraft sammen
og se på hvilken betydning dette har for de ansatte. Problemstillingen ble dermed:
Hvilken betydning har økt fokus på bærekraftig utvikling for de ansatte i Circle K
Norge?
Oppgaven vil ta for seg viktigheten av å være bærekraftige både for de allerede
ansatte og deres motivasjon, men også for potensielle ansatte og omdømmet til
Circle K.
Problemstillingen har vært utgangspunktet for oppgaven og blitt underbygd med
tre underproblemstillinger som bærekraft, motivasjon og rekruttering, som også er
hovedområdene for teoriinnhenting. De mest sentrale teoriene som har blitt brukt
er klassisk motivasjonsteori som Maslow og ytre-/indre motivasjon,
målsettingsteori, rekrutteringsprosessen og teorier og statistikk om
samfunnsansvar og bærekraft. Teorifundamentet ble brukt til å forme en
spørreundersøkelse og diskutere resultatene.
Dataene jeg har brukt i oppgaven er samlet inn i samarbeid med ansatte på Circle
K sitt hovedkontor i Oslo. Spørreundersøkelsen, som ble utført i Qualtrics, fikk 24
respondenter og all data ble analysert i Excel. Funnene i spørreundersøkelsen
viser at de ansatte i Circle K Norge er mer opptatt av bærekraft personlig enn på
jobb. De ansatte mener også miljøskadelig emballasje og reduksjon av matavfall
er de viktigste områdene Circle K kan bli bærekraftige på. Det er mulige
psykologiske barrierer som Circle K må bryte ned for å styrke den indre
motivasjonen de ansatte har og dermed kan bidra til bærekraftig utvikling.
Det er viktig at Circle K involverer de ansatte i målsettingen av bærekraftige for å
motivere de og skape engasjement. Dette kan resultere i at bærekraft blir en
naturlig del av jobbhverdagen til de ansatte og kan styrke omdømmet til Circle K
K maximum probability attack paths generation algorithm for target nodes in networked systems
No full textAs known, security system administrators need to be aware of the security risks and abnormal behaviors in a network system. Given the exploitation probability value of each vulnerability, the cumulative probability of an attack path from an attacker to a target node can be quantified and calculated, namely as the K maximum probability attack paths for a target node. It is proposed in this paper a design to compute the K maximum probability attack paths for a given set of target nodes, where available vulnerability sets for each node in the system are built and assigned to different access flags during the computation process of attack paths, aimed at reducing the computation costs. Experimental results show that the proposed design can improve the performance on the computation of the K maximum probability attack paths for a given set of target nodes, promising and more efficient than existing algorithms to generate the attack paths
Bi-sided facility location problems: an efficient algorithm for k-centre, k-median, and travelling salesman problems
No full textThis study introduces a general framework, called Bi-sided facility location, for a wide range of problems in the area of combined facility location and routing problems such as locating test centres and designing the network of supermarkets. It is based on a multi-objective optimisation model to enhance the service quality which the clients received, called client-side, and enhance the interconnection quality and eligibility among the centres, called center-side. Well-known problems such as k-median and k-centre for the client-side and the travelling salesman problem for the centre-side are taken into account in this paper. After discussing the complexity of this kind of combination, we propose a heuristic approximation algorithm to find approximation Pareto-optimal solutions for the problem. The algorithm is an efficient local search utilising geometric objects such as the Voronoi diagram and Delaunay triangulation as well as algorithms for computing approximation travelling salesman tour. In addition to the comprehensive theoretical analysis of the proposed models and algorithm, we apply the algorithm to different instances and benchmarks, and compare it with NSGA-II based on set coverage and spacing metrics. The results confirm the efficiency of the algorithm in terms of running time and providing a diverse set of efficient trade-off solutions. Highlights: Introducing a general bi-side location model considering centres and clients’ utilities Discussing and proving the NP-hardness of the model in the general framework Considering two instances; k-centre and k-median for client-side and TSP for centre-side Proposing an efficient geometric-based algorithm for solving the problems Implementing, testing, and comparing the proposed algorithm on several benchmarks.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Transport and Logistic
Optical and electronic properties of bismuth-implanted glasses
No full textPhotoluminescence (PL) and excitation spectra of Bi melt doped oxide and chalcogenide glasses are very similar, indicating the same Bi center is present. When implanted with Bi, chalcogenide, phosphate and silica glass, and BaF2 crystal all display characteristically different PL spectra to when Bi is incorporated by melt-doping. This indicates that ion implantation is able to generate Bi centers which are not present in samples whose dopants are introduced during melting. Bi-related PL bands have been observed in glasses with very similar compositions to those in which carrier-type reversal has been observed, indicating that these phenomena are related to the same Bi centers, which we suggest are interstitial Bi2+ and Bi clusters
The development of high field magnets utilizing Bi-2212 wind & react insert coils
No full textWind & react Bi-2212 inserts have been manufactured and tested inside a wide-bore NbTi-Nb3Sn magnet providing a background field up to 20T at 4.2K. A pair of six-layer concentric coils both achieved critical currents of 350 A (JE = 200 A/mm2) in a 20T background field. A thicker 14-layer insert made from 119m of round wire had a critical quench current IQ of 287A (JE = 162 A/mm2) at the same field and contributed to a combined central field of 22.5 T. This is a record for a fully superconducting magnet at 4.2 K. The 14-layer coil, equipped with an external protective shunt, was used for an extensive series of quench measurements and endured >150 quenches without damage. Minimum quench energies were found to be in the range of 200-500mJ in background fields of 15-20T when the coil carried 70-95% of its critical quench current
Bi-bicyclic and bi-tricyclic compounds from Dendrobium thyrsiflorum
No full textOne bi-bicyclic and two bi-tricyclic derivatives of coumarin–benzofuran, phenanthrene–phenanthrene and phenanthrene–phenanthraquinone, along with seven known compounds, were isolated from stems of Dendrobium thyrsiflorum Rchb.f. (Orchidaceae). On the basis of chemical, NMR (1H, 13C, HMQC, HMBC and NOESY) and mass spectrometry data, their structures were elucidated as denthyrsin [3-(5′,6′-dimethoxybenzofuran-2′-yl)-6,7-dimethoxy-2H-chromen-2-one; 1], denthyrsinol (4,5′-dimethoxy-[1,1′]biphenanthrenyl-2,5,4′,7′-tetraol; 2), and denthyrsinone (7,4′,7′-trihydroxy-2,2′,8′-trimethoxy-[5,1′]biphenanthrenyl-1,4-dione; 3). Compounds 1–3 and denthyrsinin (1,5,7-trimethoxyphenanthrene-2,6-diol; 4) showed significant cytotoxic activities against Hela (13.5, 9.3, 9.9 and 2.7 μM, respectively), K-562 (0.45, 1.6, 6.0 and 2.3 μM, respectively) and MCF-7 (18.1, not tested, 3.5 and 4.8 μM, respectively) cell lines
Semigroup of k-bi-Ideals of a Semiring with Semilattice Additive Reduct
No full textWe associate a semigroup B(S) to every semiring S with semilattice additive reduct, namely the semigroup of all k-bi-ideals of S; and such semirings S have been characterized by this associated semigroup B(S). A semiring S is k-regular if and only if B(S) is a regular semigroup. For the left k-Clifford semirings S, B(S) is a left normal band; and consequently, B(S) is a semilattice if S is a k-Clifford semiring. Also we show that the set Bm(S) of all minimal k-bi-ideals of S forms a rectangular band and Bm(S) is a bi-ideal of the semigroup B(S)
Photochemical ligand ejection from non-sterically promoted Ru(ii)bis(diimine) 4,4′-bi-1,2,3-triazolyl complexes
No full textComplexes of the form [Ru(diimine)2(btz)]2+ (btz = 1,1′-dibenzyl-4,4′-bi-1,2,3-triazolyl) are observed to undergo photochemical ejection of the btz ligand in the absence of any promotion through steric congestion to generate cis-bis(solvent) complexes [Ru(diimine)2(solvent)2]2+.
Graphical abstract: Photochemical ligand ejection from non-sterically promoted Ru(ii)bis(diimine) 4,4′-bi-1,2,3-triazolyl complexe
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