scholarly journals Relocation Scheduling in a Two–Machine Flow Shop with Resource Recycling Operations

Mathematics ◽  
2021 ◽  
Vol 9 (13) ◽  
pp. 1527
Author(s):  
Ting-Chun Lo ◽  
Bertrand M. T. Lin
Keyword(s):  
Urban Renewal ◽  
Heuristic Algorithms ◽  
Flow Shop ◽  
Approximate Solutions ◽  
Feasible Schedule ◽  
Resource Recycling ◽  
Special Cases ◽  
Np Hardness ◽  
Renewal Project ◽  
Urban Renewal Project

This paper considers a variant of the relocation problem, which is formulated from an urban renewal project. There is a set of jobs to be processed in a two-machine flow shop subject to a given initial resource level. Each job consumes some units of the resource to start its processing on machine 1 and will return some amount of the resource when it is completed on machine 2. The amount of resource released by a job is not necessarily equal to the amount of resource acquired by the job for starting the process. Subject to the resource constraint, the problem is to find a feasible schedule whose makespan is minimum. In this paper, we first prove the NP-hardness of two special cases. Two heuristic algorithms with different processing characteristics, permutation and non-permutation, are designed to construct feasible schedules. Ant colony optimization (ACO) algorithms are also proposed to produce approximate solutions. We design and conduct computational experiments to appraise the performances of the proposed algorithms.

Looking Past Disorder

2018 ◽  
pp. 50-81
Author(s):  
Justin T. Clark
Keyword(s):  
Middle Class ◽  
Urban Renewal ◽  
Urban Landscape ◽  
Class Culture ◽  
The City ◽  
Renewal Project ◽  
Urban Renewal Project

By the 1830s, the urban renewal project discussed in the previous chapter only further revealed the intractable messiness of the urban landscape. A decade of gentrification exacerbated anxiety about whether the city’s sites and edifices could compete with surrounding topographical and human congestion. The champions of improvement sought to ease their doubts by commissioning images that abstracted, obscured, or shrank into insignificance the disorder surrounding urban landmarks. Yet even as these ideal representations of the city proliferated, Bostonians questioned whether their fellow spectators saw moral landmarks as intended. A middle-class culture of novels, guidebooks, periodicals, plays, and other sources introduced a new typology of spectators—the connoisseur and the poseur, the vista seeker and the speculator, the libertine and the sentimentalist—who revealed their true characters through their divergent reactions to the city’s monuments, parks, galleries, paintings, and sculptures.

"Urban renewal with dancing and music"?

Focaal ◽  
2019 ◽  
Vol 2019 (84) ◽  
pp. 47-61
Author(s):  
Cansu Civelek
Keyword(s):  
Urban Renewal ◽  
Urban Studies ◽  
Gender Inequalities ◽  
And Gender ◽  
Renewal Project ◽  
Urban Renewal Project

In 2012, an urban renewal project in Eskişehir, Turkey, was initiated with claims of “festive renewal,” challenging the theories of critical urban studies that emphasize the disruptive effects of such projects. Built on a discussion about hegemony, which deploys consent and dissent in its organization, this article ethnographically investigates the tactics and strategies of the renewal machine that mobilized and co-opted parts of the locals into the project while invoking layers of dissent, distrust, and discomfort. The article discusses how historically built political, socioeconomic, and gender inequalities were efficiently detected, reconstituted, and put into the service of the renewal machine while revealing tension and dynamism behind the “festive renewal.” It shows a fragility of hegemony that is neither a given nor a completed template.

scholarly journals The Influence of High-Rise Buildings on Pedestrian-Level Wind in Surrounding Street Canyons in an Urban Renewal Project

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2745
Author(s):  
Tzu-Ling Huang ◽  
Chien-Yuan Kuo ◽  
Chun-Ta Tzeng ◽  
Chi-Ming Lai
Keyword(s):  
Urban Renewal ◽  
Natural Ventilation ◽  
Practical Case ◽  
Street Canyons ◽  
High Rise ◽  
Taipei City ◽  
Renewal Project ◽  
Urban Renewal Project ◽  
Shielding Effects

The pedestrian wind environment in a street canyon is affected by a multitude of factors, including the height and geometric shape of the surrounding buildings, the street width, the wind direction, and speed. Wind-tunnel tests were performed to determine the effects of constructing high buildings in an urban renewal project in New Taipei City, Taiwan on the pedestrian wind environments in the surrounding street canyons. The results show that replacing the original low-rise buildings with high-rise buildings could decrease the wind speed and natural ventilation potential in certain surrounding street canyons. The flow fields generated by approaching winds in various street canyons are highly complex in this practical case study. Thus, the pedestrian wind patterns in the street canyons cannot be interpreted in terms of channeling and shielding effects alone, as is typically reported in the literature.

The effects of an urban renewal project on health and health inequalities: a quasi-experimental study in Barcelona

2014 ◽  
Vol 68 (9) ◽  
pp. 811-817 ◽  
Author(s):  
Roshanak Mehdipanah ◽  
Maica Rodríguez-Sanz ◽  
Davide Malmusi ◽  
Carles Muntaner ◽  
Elia Díez ◽  
...  
Keyword(s):  
Experimental Study ◽  
Urban Renewal ◽  
Health Inequalities ◽  
Quasi Experimental ◽  
Renewal Project ◽  
Health And Health Inequalities ◽  
Urban Renewal Project
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