Technical Note: plan-delivery-time constrained inverse optimization method with minimum-MU-per-energy-layer (MMPEL) for efficient pencil beam scanning proton therapy.
Sign Up to like & getrecommendations! Published in 2020 at "Medical physics"
DOI: 10.1002/mp.14363
Abstract: PURPOSE This work aims to reduce dose delivery time of pencil beam scanning (PBS) proton plans, which is the dominant factor of total plan delivery time. A proton PBS system, such as Varian ProBeam proton… read more here.
Keywords: energy; delivery; time; plan ... See more keywords
Spot scanning proton arc therapy reduces toxicity in oropharyngeal cancer patients.
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DOI: 10.1002/mp.16098
Abstract: BACKGROUND Proton arc technology has recently shown dosimetric gains for various treatment indications. The increased number of beams and energy layers (ELs) in proton arc plans, increases the degrees of freedom in plan optimization and… read more here.
Keywords: proton arc; delivery time; arc; plan ... See more keywords
Improving delivery efficiency using spots and energy layers reduction algorithms based on a large momentum acceptance beamline.
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DOI: 10.1002/mp.16420
Abstract: BACKGROUND Intensity-modulated proton therapy (IMPT) is a well-known delivery method of proton therapy. Besides higher plan quality, reducing the delivery time is also essential to IMPT plans. It can enhance patient comfort, reduce treatment costs,… read more here.
Keywords: time; delivery time; energy layers; spots energy ... See more keywords
A hybrid circular economy - Game theoretical approach in a dual-channel green supply chain considering sale’s effort, delivery time, and hybrid remanufacturing
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DOI: 10.1016/j.jclepro.2019.119521
Abstract: Abstract The circular economy (CE) and the marketing activities are the key subjects to attract the market share in today’s complex supply chain. Here, dual selling channels, the online delivery time, and the distributor sales… read more here.
Keywords: game; supply chain; distributor; delivery time ... See more keywords
Improving delivery performance for asymmetric Laplace distributed delivery time in a two-stage supply chain
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DOI: 10.1080/00207543.2017.1397790
Abstract: This paper investigates strategies for improving supply chain delivery timeliness when the delivery time follows an asymmetric Laplace distribution. Delivery performance is measured using a cost-based analytical model which evaluates the expected cost for early… read more here.
Keywords: delivery; delivery performance; cost; delivery time ... See more keywords
The association of maternal obesity with fetal pH in parturients undergoing cesarean delivery under spinal anesthesia
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DOI: 10.1080/03007995.2022.2088717
Abstract: Abstract Objective The aim of this study was to examine the relationship between maternal obesity and fetal umbilical arterial pH in a cohort of parturients that received a prophylactic phenylephrine infusion for management of spinal… read more here.
Keywords: spinal anesthesia; delivery time; delivery; umbilical arterial ... See more keywords
Convexity and Feedback in Approximate Dynamic Programming for Delivery Time Slot Pricing
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DOI: 10.1109/tcst.2021.3093648
Abstract: We consider the revenue management problem of finding profit-maximizing prices for delivery time slots in the context of attended home delivery. This multistage optimal control problem admits a dynamic programming (DP) formulation that is intractable… read more here.
Keywords: dynamic programming; time; delivery time; pricing ... See more keywords
Filling Delivery Time Automatically Based on Couriers’ Trajectories
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DOI: 10.1109/tkde.2021.3100116
Abstract: Nowadays, couriers are still the main solution to address the “last mile” problem in logistics. They are usually required to record the delivery time of each parcel manually, which is essential for delivery insurances, delivery… read more here.
Keywords: time; delivery time; location; couriers trajectories ... See more keywords
Vehicle Routing Problems for Drone Delivery
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DOI: 10.1109/tsmc.2016.2582745
Abstract: Unmanned aerial vehicles, or drones, have the potential to significantly reduce the cost and time of making last-mile deliveries and responding to emergencies. Despite this potential, little work has gone into developing vehicle routing problems… read more here.
Keywords: vehicle routing; drone delivery; delivery; routing problems ... See more keywords
A Mathematical Model and Self-Adaptive NSGA-II for a Multiobjective IPPS Problem Subject to Delivery Time
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DOI: 10.1155/2020/6012737
Abstract: Process planning and scheduling are two important components of manufacturing systems. This paper deals with a multiobjective just-in-time integrated process planning and scheduling (MOJIT-IPPS) problem. Delivery time and machine workload are considered to make IPPS… read more here.
Keywords: ipps problem; self adaptive; delivery time;
The optimal delivery time and order quantity in an oligopoly market with time-sensitive customers
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DOI: 10.1371/journal.pone.0225436
Abstract: With the development of e-commerce, delivery time is regarded as a key competitive advantage in an oligopoly market, as shortening the delivery time can stimulate demand for products. Many firms adopt a variety of strategies… read more here.
Keywords: order quantity; time order; market; time ... See more keywords