Results 91 to 100 of about 9,841 (196)

Scheduling optimization of optical lens polishing

open access: yesInternational Transactions in Operational Research, Volume 33, Issue 6, Page 3744-3768, November 2026.
Abstract Optical systems have achieved notable progress in focusing and imaging technologies; however, manual grinding remains indispensable, resulting in elevated costs, extended timelines, and inefficiencies. These difficulties are compounded by operational constraints, uneven machine utilization, and risks of order delays and escalating expenses ...
Tzu‐Chin Lin, Bertrand M. T. Lin
wiley   +1 more source

Heuristic procedures for reactive project scheduling. [PDF]

open access: yes
This paper describes new heuristic reactive project scheduling procedures that may be used to repair resource-constrained roject baseline schedules that suer from multiple activity duration disruptions during project execution.The objective is to ...
Van de Vonder, S   +3 more
core  

Using Fuzzy Multi-Criteria Assessment Method (Fuzzy AHP) in the Best Sequence Selection in a Single Machine Shop [PDF]

open access: yesMuṭāli̒āt-i Mudīriyyat-i Ṣan̒atī, 2011
One of the main steps in production planning is the operation sequencing. The operation sequencing is assessed by a series of efficiency indexes such as jobs completion average time, jobs maximum tardiness and jobs average tardiness.
Nasim Ekram Nosratian
doaj  

The impact of public drop‐off boxes and autonomous delivery robots in last‐mile delivery

open access: yesInternational Transactions in Operational Research, Volume 33, Issue 6, Page 3825-3854, November 2026.
Abstract The growing concern over emissions from last‐mile logistics is motivating the development of innovative delivery models aimed at reducing environmental impact and traffic congestion. To this end, we propose a last‐mile delivery scheme based on both public drop‐off boxes and autonomous delivery robots.
Gianpaolo Ghiani   +3 more
wiley   +1 more source

An exact procedure for the resource-constrained weighted earliness-tardiness project scheduling problem. [PDF]

open access: yes
In this paper we study the resource-constrained project scheduling problem with weighted earliness-tardiness penalty costs. Project activities are assumed to have a known deterministic due date, a unit earliness as well as a unit tardiness penalty cost ...
Vanhoucke, M   +2 more
core  

Minimizing a General Penalty Function on a Single Machine via Developing Approximation Algorithms and FPTASs

open access: yesInternational Journal of Industrial Engineering and Production Research, 2017
This paper addresses the Tardy/Lost penalty minimization on a single machine. According to this penalty criterion, if the tardiness of a job exceeds a predefined value, the job will be lost and penalized by a fixed value.
Kamran Kianfar, Ghasem Moslehi
doaj  

Bicriteria single machine scheduling to minimize total tardiness and waiting time variance by genetic algorithms [PDF]

open access: yesMuṭāli̒āt-i Mudīriyyat-i Ṣan̒atī, 2015
Actual scheduling problems may necessitate the decision maker to consider a variety of criteria prior to make any decision. This research considers a single machine scheduling problem, with the objective of minimizing a combination of total tardiness and
Maghsoud Amiri   +1 more
doaj  

Comparative Policy Analysis of Healthcare Healthy Eating Policies in Canada

open access: yesHealth Promotion Journal of Australia, Volume 37, Issue 4, October 2026.
ABSTRACT Background Healthy eating policies are of growing importance to the management of retail food environments in healthcare (e.g., hospital cafeterias). Several researchers have begun to analyse health promoting benchmarks within these policies. However, little is understood about the relationship between policy and continuous quality improvement
Laura J. Kennedy   +5 more
wiley   +1 more source

Earliness/tardiness flow-shop scheduling under uncertainty

open access: yes, 2005
For unconventional scheduling problems, both job sequence and starting time of every operation must be optimized, which increases the difficulties of solving this kind of problem.
Zhu YL(朱云龙)   +2 more
core  

Sulfur Vacancy Modulation‐Induced Electronic Rearrangement in S‐Scheme BaTiO3@ZnIn2S4 Heterojunctions: Toward Synergistic Piezo‐Photocatalytic H2O2 Evolution

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT High‐yield photocatalytic H2O2 production in sacrificial agent‐free pure water constitutes a critical bottleneck requiring urgent advances in energy catalysis. Although ZnIn2S4 (ZIS) exhibits favourable visible light absorption, it is plagued by severe bulk charge carrier recombination and scarce accessible surface‐active sites.
Sheng Liu   +7 more
wiley   +1 more source

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