45,323 research outputs found
Modelling human performance within manufacturing systems design: from theory to practice
Oh! de old Jaw bone! Oh! de old Jaw bone! [first line of chorus]
strophic with choruspiano and voice1754cover and music same as Box 20 Item 216Cover is duplicated in 020.216.
Music is duplicated in 020.216.Johns Hopkins University, Levy Sheet Music Collection, Box
020, Item 217Words By T. Baines Haily, Esq. Arranged for Forty-Pianos by Chomas Tomer [Thomas Comer?].as sung in the Opera of "Sin de'Ella" or "Black Fairy & Leather Slipper" By Mr. Sim. Clare.E. Browne del., 1843; Printed by Endicott; G.W. Quidor Engvr
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
The prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
Oh! de old Jaw bone! Oh! de old Jaw bone! [first line of chorus]
strophic with choruspiano and voice1754cover and music same as Box 20 Item 216Cover is duplicated in 020.216.
Music is duplicated in 020.216.Johns Hopkins University, Levy Sheet Music Collection, Box
020, Item 217Words By T. Baines Haily, Esq. Arranged for Forty-Pianos by Chomas Tomer [Thomas Comer?].as sung in the Opera of "Sin de'Ella" or "Black Fairy & Leather Slipper" By Mr. Sim. Clare.E. Browne del., 1843; Printed by Endicott; G.W. Quidor Engvr
Examining green production and its role within the competitive strategy of manufacturers
Purpose: This paper reviews current literature and contributes a set of findings that capture the current state-of-the-art of the topic of green production.
Design/methodology/approach: A literature review to capture, classify and summarize the main body of knowledge on green production and, translate this into a form that is readily accessible to researchers and practitioners in the more mainstream operations management community.
Findings: The existing knowledge base is somewhat fragmented. This is a relatively unexplored topic within mainstream operations management research and one which could provide rich opportunities for further exploration.
Originality/value: This paper sets out to review current literature, from a more conventional production operations perspective, and contributes a set of findings that capture the current state-of-the-art of this topic
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
First evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
The variation of large-magnitude volcanic ash cloud formation with source latitude
Very large magnitudes of explosive volcanic eruptions can produce giant ash clouds with diameters of hundreds to thousands of kilometers. These ash clouds are controlled by gravity and rotational forces, leading to a more radially constrained shape than clouds produced by smaller eruptions. Here we develop a dynamic model of the formation of large ash clouds that are produced by eruptions of constant intensity and finite duration, incorporating source latitude, eruption type, magnitude, and intensity. The cloud grows as a stratified intrusion in the stratosphere to an equilibrium shape that approximates an ellipsoid of revolution, rotating anticyclonically as a solid body, at sufficient large distances from the equator. More generally, the structure of the cloud is determined by the source latitude ? s and the parameter Y s = y s(?/Nd 0)1/2, wherein y s is the distance of the source from the equator, ? is the north-south gradient of the Coriolis frequency, N is the buoyancy frequency of the stratosphere, and d 0 is the maximum cloud thickness. A steady solution for an equilibrium cloud exists if Y s lies above a boundary that ranges from ?/2 at the equator to 0 at the pole. These clouds move westward at an increasing rate with decreasing latitude. Below this boundary steady solutions appear not to exist and the nature of the breakdown of the solution at the boundary suggests that the cloud, or part of it, moves toward and across the equator. The above parameters may be expressed in terms of latitude and cloud volume, which enables the model to be applied to the ash clouds of past large-magnitude eruptions. The results suggest that the behavior of clouds formed from plinian phases with eruption magnitudes M < 6.5 (M = log10 m ? 7, wherein m is the erupted mass in kilograms) depends on source latitude and eruption intensity, whereas for M > 6.5 they could achieve interhemispheric transport from most latitudes. For clouds from co-ignimbrite sources, for M < 7.5, cross-equatorial transport is only possible for sources in the tropics, but for M > 8, it is possible from most latitudes
Identifying (territorial) tensions in the servitized value chain
Purpose: To understand the tensions that servitization activities create between actors within networks.Design/methodology/approach: Interviews were conducted with manufacturers, intermediaries and customers across a range of industrial sectors.Findings: Tensions relating to two key sets of capabilities are identified: in developing or acquiring (i) operant technical expertise and (ii) operand service infrastructure. The former tension concerns whom knowledge is co-created with and where expertise resides. The latter involves a territorial investment component; firms developing strategies to acquire greater access to, or ownership of, infrastructures closer to customers. Developing and acquiring these capabilities is a strategic decision on the part of managers of servitizing firms, in order to gain recognized power and control in a particular territory. Originality/value: This paper explores how firms’ servitization activities involve value appropriation (from the rest of the network), contrasting with the narrative norm for servitization: that it creates additional value. There is a need to understand the tensions that servitization activities create within networks. Some firms may be able to improve servitization performance through co-operation rather than competition, generating co-opetitive relationships. Others may need to become much more aggressive, if they are to take a greater share of the ‘value’ from the value chain
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