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The manufacturing systems’ success directly relates to their accurate, reliable and flexible schedules, including how production is planned and scheduled and which constraints are considered in generating the schedules. The study's objective arises from the need to generate an optimal production scheduling system in a connecting plates manufacturing company that works on a Make-To-Stock basis. This research investigates the impact of demand and operational constraints on production schedules, including the facility capacity, operators and machines availability, raw materials availability, inventory level and warehouse capacity. A multi-agent-based optimisation model is developed to face the complexity of considering demand and operational constraints and reflects their impact on generating a reliable production schedule. This model involves a proposed heuristic algorithm that considers demand and operations constraints in such a manufacturing environment and optimises the production schedule based on these restrictions/requirements. A real-life case study based on a connecting plates manufacturer company is used as a test bench of the proposed agent-based heuristic optimisation model. The proposed algorithm is compared with other related approaches to check its superiority based on key criteria, including inventory levels, missed/unsatisfied orders and total production time. Results show that the proposed heuristics algorithm reduced the number of missed orders by 34% compared with similar approaches.

The Object Dialogue Box and the Bizarre Artefacts present the learner with an aesthetic impact and an emotional challenge. The aim of developing the Object Dialogue Box and the Bizarre Artefacts is to create a mental state of flux, a state conducive to creative thinking and inquiry. This chapter explores the emotional impact of the artefacts through the progress revealed in children's group narratives and in their individual written narratives and by using observational material from class sessions in a primary school. It examines what the challenge of the artefacts represents to the internal world of the child. The chapter shows how the Object Dialogue Box can be used to help children create written stories that can be used as evidence of learning in literacy. The impact of the Object Dialogue Box and the Bizarre Artefacts is one of aesthetic conflict, a disturbance in the familiar harmony and beauty of the world, causing temporary disturbance to conceptual development.

Despite improvements to network structures, the process of passing information to and from a central server can be time-consuming; so storing this information locally allows the user the best of both worlds - a networked management application running at desktop speeds.

We report on the spectroscopic analysis of the black hole binary GX 339-4 during its recent 2017-2018 outburst, observed simultaneously by the Swift and NuSTAR observatories. Although during this particular outburst the source failed to make state transitions, and despite Sun constraints during the peak luminosity, we were able to trigger four different observations sampling the evolution of the source in the hard state. We show that even for the lowest luminosity observations the NuSTAR spectra show clear signatures of X-ray reprocessing (reflection) in an accretion disk. Detailed analysis of the highest signal-to-noise spectra with our family of relativistic reflection models RELXILL indicates the presence of both broad and narrow reflection components. We find that a dual-lamppost model provides a superior fit when compared to the standard single lamppost plus distant neutral reflection. In the dual lamppost model two sources at different heights are placed on the rotational axis of the black hole, suggesting that the narrow component of the Fe K emission is likely to originate in regions far away in the disk, but still significantly affected by its rotational motions. Regardless of the geometry assumed, we find that the inner edge of the accretion disk reaches a few gravitational radii in all our fits, consistent with previous determinations at similar luminosity levels. This confirms a very low degree of disk truncation for this source at luminosities above ~1% Eddington. Our estimates of Rin reinforces the suggested behavior for an inner disk that approaches the inner-most regions as the luminosity increases in the hard state.

The behavior of electromagnetic fields in an inhomogeneous, anisotropic medium can be characterized by a tensor Green function for the electric field. In this dissertation, a new formalism for tensor Green functions using the calculus of differential forms is proposed. Using this formalism, the scalar Green function for isotropic media is generalized to an anisotropic, inhomogeneous medium. An integral equation is obtained relating this simpler Green function to the desired Green function for the electric field, generalizing the standard technique for construction of the Green function for the isotropic case from the scalar Green function. This treatment also leads to a new integral equation for the electric field which is a direct generalization of a standard free space result. For the special case of a biaxial medium, a paraxial approximation for the Green function is used to obtain the Gaussian beam solutions. A straightforward analysis breaks down for beams propagating along two singular directions, or optical axes, so these directions are investigated specially. The associated phenomenon of internal conical refraction is known to yield a circular intensity pattern with a dark ring in its center; this analysis predicts the appearance of additional dark rings in the pattern.

Wolf Systems has its fingers in a vast array of sectors, from traditional roof truss technology, timber frame, floor and roof design and costing software, to the easi-joist metal web joist and prefabricated roof system smart roof.

$129 (£76) A budget 3D modelling and animation package that won't reduce your brains to mush

Smarten up your songwriting sessions with our guide to GarageBand 3's important functions

Notation needn't be set in stone. Apply some MIDI manipulation with PhotoScore Lite