14 research outputs found

    A Study using a high-addressability Inkjet Proofer to produce amhalftone p roofs matching Kodak approval in color, screening, and subject moiré

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    An investigation of the feasibility of using a high-addressability inkjet printer as an alternative to the traditional proofing systems, such as Kodak Approval, was completed. The inkjet proofs must match the press sheet in terms of color, screening, screen angle, screen ruling, and screen dot size. The relatively low cost per print and the ability to incorporate color management makes inkjet technology a potential candidate also for use as a proofer for these requirements. Existing software and patents on halftone inkjet proofing were analyzed. A test form was designed to test the proofing models for screening, screen angle, and screen ruling observed in the proofs. Several workflow models were developed to generate proofs that matched the press sheet in color and moiré. Solutions for the encountered problems were tested until, finally, an optimized model was obtained that was capable of generating halftone inkjet proofs matching the press sheet visually in terms of color and moiré. This model is simple, cost effective and does not require any special software. However it is limited by the constraints of file size of Photoshop

    Test Targets 7.0: A Collaborative effort exploring the use of scientific methods for color imaging and process control

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    Test Targets is a culmination of teaching and learning that reflects quality and analytic aspects of printing systems and their optimization. The creation of the Test Targets publication is a total experience that reflects the innovation, problem solving, and teamwork of the diverse team of faculty, staff, students, and professionals responsible for its contents and production

    Cranial neuropathy in COVID-19: a case series and review of literature.

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    Neurological presentation of COVID-19 is increasingly being recognised. Cranial neuropathy in COVID-19 is an uncommon and under-diagnosed entity. We report a case series of 4 patients who presented with trigeminal neuropathy (two cases) and facial nerve palsy (two cases) which recovered with conservative treatment along with the review of the literature

    Contract-based Methodology for Developing Resilient Cyber-Infrastructure in the Industry 4.0 Era

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    As the industrial cyber-infrastructure become increasingly important to realise the objectives of Industry 4.0, the consequence of disruption due to internal or external faults become increasingly severe. Thus there is a need for a resilient infrastructure. In this paper, we propose a contractbased methodology where components across layers of the cyberinfrastructure are associated with contracts and a light-weight resilience manager. This allows the system to detect faults (contract violation monitored using observers) and react (change contracts dynamically) effectively.NRF (Natl Research Foundation, S’pore)Accepted versio

    Contract-based hierarchical resilience management for cyber-physical systems

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    Cyber-physical systems satisfy user requirements through close collaboration among physical and cyber components. Software-based resilience management solutions can provide flexibility in dealing with component failures. To improve efficiency and ease of implementation, we present a contract-based hierarchical resilience management framework.National Research Foundation (NRF)Accepted versionWe acknowledge the contributions from Sidharta Andalam, Delta Electronics Singapore, for input on related works and formalization of contracts. This work was conducted within the Delta-NTU Corporate Lab for Cyber-Physical Systems with funding support from Delta Electronics Inc. and the National Research Foundation Singapore under the Corp Lab @ University Scheme
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