Optimal resource planning for maintenance of distribution networks

Author(s):  
M. Obergunner ◽  
M. Zdrallek ◽  
A. Schweer ◽  
E. Schick
2020 ◽  
Vol 17 (3) ◽  
pp. 158-170
Author(s):  
Loai Ali Alsaid ◽  
Jean Claude Mutiganda

The concept of a smart city has attracted the attention of many scholars and policymakers in many countries worldwide. The role of accounting as a tool of governance in smart city politics, however, has so far been largely overlooked, especially in less developed countries (LDCs). This paper sets off to fill this research gap and hitherto unexplored linkages between accounting and smart cities. Drawing on the concept of governmentality, the authors conducted a case study based on document analysis, meetings observation, and 42 semi-structured interviews at a branch of a hybrid electricity company owned by New Cairo City in Egypt, during 2018. Findings show that the case company has implemented smart distribution networks of electricity in which new management accounting technology (enterprise resource planning (ERP) system) is used to trace costs, revenues, client complaints and feedback in a timely manner. The new network (of infrastructure and technologies) has represented timely accounting information as a major political power to influence accurate governance decision-making, such as smart electricity pricing and control, and to challenge governance decisions that are not sound. This paper is one of the first studies to explore the socio-political dynamics of accounting in smart city governance in the context of LDCs.


2018 ◽  
Vol 34 (3) ◽  
pp. 479-489 ◽  
Author(s):  
Sara Masoud ◽  
Young-Jun Son ◽  
Chieri Kubota ◽  
Russell Tronstad

Abstract.Vegetable grafting is a labor-intensive operation with many management decisions. Labor management and resource planning are critical allocations in grafting nurseries, yet optimization is challenging due to the dynamic nature of workers’ performance in vegetable seedling propagation. To this end, we developed a simulation-based optimization framework for labor management to optimize labor allocation. This approach was evaluated by comparing its result with those suggested by selected domain experts (a plant scientist and a nursery manager). Furthermore, the simulation models were validated with a dataset from a developing tomato grafting company. Simulation-based optimization is demonstrated as an effective approach to find the optimal/near optimal labor allocation for horticultural nurseries, where discrete event simulation is used to represent the dynamics of the grafting work environment and meta-heuristics are used to devise optimal/ near optimal resource allocation strategies. Results reveal that a potential annual savings between $2,510 (0.6%) and $97,388 (20%) can be achieved for a grafting facility of 6 million plants per year. Keywords: Simulation-based optimization, Grafting, Labor allocation, Discrete event simulation.


2018 ◽  
Vol 4 (2) ◽  
pp. 75-83 ◽  
Author(s):  
Haolin Wang ◽  
Qingpeng Zhang ◽  
Hing-Yu So ◽  
Angela Kwok ◽  
Zoie Shui-Yee Wong

In-hospital fall incidence is a critical indicator of healthcare outcome. Predictive models for fall incidents could facilitate optimal resource planning and allocation for healthcare providers. In this paper, we proposed a tensor factorisation-based framework to capture the latent features for fall incidents prediction over time. Experiments with real-world data from local hospitals in Hong Kong demonstrated that the proposed method could predict the fall incidents reasonably well (with an area under the curve score around 0.9). As compared with the baseline time series models, the proposed tensor based models were able to successfully identify high-risk locations without records of fall incidents during the past few months.


2021 ◽  
Vol 3 (5) ◽  
Author(s):  
Matthew Benchener ◽  
Lingfeng Li

Abstract In this study, we introduce Efficiency Frontier, an economic assessment framework for business operations. The proposed framework emphasizes efficiency and sustainability. It aims to help organizations translate a complex metric system into a value index, conduct performance evaluation, and determine efficient resource planning strategies. Unlike the traditional methods that majorly focus on the achievement of performance targets, the proposed framework also accounts for the amount of resource that is invested in the achievement, which encourages managers to implement sustainable strategies that aim for long-term success. To validate the new framework, we systematically study the case of the City of Chicago’s 311 contact center with a base case analysis and a sensitivity analysis. In the base case, an Efficiency Frontier architected by a set of efficient solutions from 2013 to 2016 is used to identify outperforming scenarios given resource constraints. In the sensitivity analysis, we demonstrate the application of Efficiency Frontier in determining optimal resource planning strategies in conservative, moderate, and aggressive business investment scenarios. The base case Efficiency Frontier reveals that the marginal return on investment in improving the performance may diminish as investment increases. The sensitivity study suggests that optimal resource planning strategies should be adjusted according to value propositions. This work builds a framework for business leaders to economically assess their operational decision-making. Article highlights Efficient strategies can be identified by exploring the maximum value increase per unit of resource given cost scenarios The fund of a strategy should be reduced when the marginal return of the strategy begins to diminish. The framework’s ability to suggest cost-saving strategies is especially informative in resource-limited settings.


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