In many real-life routing problems there is more uncertainty with respect to the required timing of the service than with respect to the service locations. We focus on a pickup and delivery problem with time windows in which the pickup and drop-o↵ locations of the service requests are fully known in advance, but the time at which these jobs will require service is only fully revealed during ope...

this study considers an eoq inventory model with advance payment policy in a fuzzy situation by employing two types of fuzzy numbers that are trapezoidal and triangular. two fuzzy models are developed here. in the first model the cost parameters are fuzzified, but the demand rate is treated as crisp constant. in the second model, the demand rate is fuzzified but the cost parameters are treated ...

Polyacrylamide (PAM) in furrow irrigation water eliminates 94% of runoff sediment. Higher infiltration (15-50%) can result in upperfield uverirrigation. We hypothesized that PAM would lengthen advance time, but that interactions with flow rate and wheel-track (WT) Ihrrows would occur, influencing erosion and infiltration with potential for improved water management. A 2-yr study conducted on 1....

We extend a measurement-based admission control algorithm suggested for predictive service to provide advance reservations for guaranteed and predictive service while keeping the attractive features of pre-dictive service. The admission decision for advance reservations is based on information about ows that overlap in time. For ows that have not yet started, the requested values are used, and ...

Advance reservation is an important part of grid computing. It guarantees that resources will be available at a pre-determined time to participate in the execution of a grid application. The advance reservation and scheduling of optical networks are key in guaranteeing that enough bandwidth, i.e., lightpaths, will be available for an application during a predetermined interval of time. This pap...

OBJECTIVES To assess the prevalence of advance directives among nursing home residents before and after passage of the Patient Self-Determination Act (PSDA) and to identify factors associated with advance directive completion. DESIGN Prestudy and poststudy nursing home admissions using medical record reviews and a companion cross-sectional survey of alert and oriented residents. SETTING Six...

Testing the comprehension of spoken language is of primary importance. A lot of factors may affect the performance of EFL learners on listening comprehension tests, among which are the use of visual advance organizers, and types of listening passages (dialogues or monologues). As B-Ikeguchi (1997) states a few studies have been carried out on the effects of these factors on EFL learners’ listen...