24,082 research outputs found

    A review of key planning and scheduling in the rail industry in Europe and UK

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    Planning and scheduling activities within the rail industry have benefited from developments in computer-based simulation and modelling techniques over the last 25 years. Increasingly, the use of computational intelligence in such tasks is featuring more heavily in research publications. This paper examines a number of common rail-based planning and scheduling activities and how they benefit from five broad technology approaches. Summary tables of papers are provided relating to rail planning and scheduling activities and to the use of expert and decision systems in the rail industry.EPSR

    A software architecture for autonomous maintenance scheduling: Scenarios for UK and European Rail

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    A new era of automation in rail has begun offering developments in the operation and maintenance of industry standard systems. This article documents the development of an architecture and range of scenarios for an autonomous system for rail maintenance planning and scheduling. The Unified Modelling Language (UML) has been utilized to visualize and validate the design of the prototype. A model for information exchange between prototype components and related maintenance planning systems is proposed in this article. Putting forward an architecture and set of usage mode scenarios for the proposed system, this article outlines and validates a viable platform for autonomous planning and scheduling in rail

    Classical and Quantum Fluctuation Theorems for Heat Exchange

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    The statistics of heat exchange between two classical or quantum finite systems initially prepared at different temperatures are shown to obey a fluctuation theorem.Comment: 4 pages, 1 included figure, to appear in Phys Rev Let

    Average output entropy for quantum channels

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    We study the regularized average Renyi output entropy \bar{S}_{r}^{\reg} of quantum channels. This quantity gives information about the average noisiness of the channel output arising from a typical, highly entangled input state in the limit of infinite dimensions. We find a closed expression for \beta_{r}^{\reg}, a quantity which we conjecture to be equal to \Srreg. We find an explicit form for \beta_{r}^{\reg} for some entanglement-breaking channels, and also for the qubit depolarizing channel Δλ\Delta_{\lambda} as a function of the parameter λ\lambda. We prove equality of the two quantities in some cases, in particular we conclude that for Δλ\Delta_{\lambda} both are non-analytic functions of the variable λ\lambda.Comment: 32 pages, several plots and figures; positivity condition added for Theorem on entanglement breaking channels; new result for entrywise positive channel

    Androcentric Bias: Anthropomorphic Characters Promoting Masculinity

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    Cartoons on television are a platform for gender representation because of their varied content. It is observed evidence that cartoons hold a more dominant role over the centuries. The stereotyped gender representation in animated television programs affects viewers, particularly young children, in a variety of ways. The purpose of this study is to analyze how anthropomorphic characters promote masculinity in Indian television cartoons. The character comparison was conducted to determine whether cartoons in India promote masculinity or not. It was discovered that anthropomorphic male characters played the main characters and dominate one, while female anthropomorphic characters are underrepresented, indicating that gender is stereotypically portrayed. Through androcentrism, the article would examine how the gender stereotypes given to the nonhuman characters in these shows perpetuate gender unfairness. This study examines how gender stereotypes are promoted through the pretense of “children’s entertainment” in animations and how these problems might be addressed

    On the stability analysis of periodic sine-Gordon traveling waves

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    We study the spectral stability properties of periodic traveling waves in the sine-Gordon equation, including waves of both subluminal and superluminal propagation velocities as well as waves of both librational and rotational types. We prove that only subluminal rotational waves are spectrally stable and establish exponential instability in the other three cases. Our proof corrects a frequently cited one given by Scott.Comment: 22 pages, 6 figure

    Shedding Light on the Off-Hours Coverage Gap in Radiology: Improving Turnaround Times and Critical Results Reporting

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    Objective: Devise a plan to optimize off-hours faculty and trainee staffing within the Department of Radiology Measure the magnitude of patient safety gains in terms of report turnaround times (TAT) and critical results communication times (CRC)https://jdc.jefferson.edu/patientsafetyposters/1044/thumbnail.jp
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