i was young, I Was Old

This is the program from the play i was young, I Was Old, an original play written by Ouachita Baptist University student Steve Philips. Al Marks, another student, wrote and arranges the music for the production.https://scholarlycommons.obu.edu/theatre_posters/1053/thumbnail.jp

A survey on performance analysis of warehouse carousel systems

This paper gives an overview of recent research on the performance evaluation and design of carousel systems. We discuss picking strategies for problems involving one carousel, consider the throughput of the system for problems involving two carousels, give an overview of related problems in this area, and present an extensive literature review. Emphasis has been given on future research directions in this area

To Come Back Again

To Come Back Again is a bildungsroman of two characters – Luis and Rowena. The concept of leaving and returning (balikbayan in Filipino) is a major theme in the story. The novel details both characters’ perspectives: Luis’ reluctant departure from the Philippines juxtaposed with Rowena’s desperation to enact her own departure. Luis’ story starts when he is sent off to live with his aunt in Vancouver. He leaves behind a developing relationship with Rowena, which becomes the impetus for his longing to return to his former home. In Vancouver, he starts to question why he had to leave Cebu and to ascertain his purpose in staying in Vancouver. This anxiety manifests itself in a recurring nightmare. The pull of not only Rowena, but also his barangay (village), stifles any new relationships he forms. Despite his reluctance to entrench himself in Vancouver’s cultural milieu, and despite the fact that the city itself has begun to influence his way of thinking and speaking, Luis begins to question his identity, which then casts doubt on his goal of going back to Cebu. Rowena’s story begins a week after Luis’ departure. As Luis was her only ally and the one person she thought would change her life, his leaving forces Rowena to come to terms with her own situation. She comes to question the idea of permanence. Upon meeting Mr. Park (an older South Korean man vacationing in Cebu), Rowena sees a relationship with him as a way out of her poverty. Both stories explore the ideas of migration, poverty, class hierarchy – Filipinos vs. Chinese- Filipinos – and family responsibility

Optimal picking of large orders in carousel systems

A carousel is an automated storage and retrieval system which consists of a circular disk with a large number of shelves and drawers along its circumference. The disk can rotate either direction past a picker who has a list of items that have to be collected from $n$ different drawers. In this paper, we assume that locations of the $n$ items are independent and have a continous non-uniform distribution over the carousel circumference. For this model, we determine a limiting behavior of the shortest rotation time needed to collect one large order. In particular, our limiting result indicates that if an order is large, then it is optimal to allocate {\it less} frequently asked items {\it close} to the picker's starting position. This is in contrast with picking of small orders where the optimal allocation rule is clearly the opposite. We also discuss travel times and allocation issues for optimal picking of sequential orders

A Lindley-type equation arising from a carousel problem

In this paper we consider a system with two carousels operated by one picker. The items to be picked are randomly located on the carousels and the pick times follow a phase-type distribution. The picker alternates between the two carousels, picking one item at a time. Important performance characteristics are the waiting time of the picker and the throughput of the two carousels. The waiting time of the picker satisfies an equation very similar to Lindley's equation for the waiting time in the PH/U/1 queue. Although the latter equation has no simple solution, we show that the one for the waiting time of the picker can be solved explicitly. Furthermore, it is well known that the mean waiting time in the PH/U/1 queue depends on to the complete interarrival time distribution, but numerical results show that, for the carousel system, the mean waiting time and throughput are rather insensitive to the pick-time distribution.Comment: 10 pages, 1 figure, 19 reference

The `Periodic Nulls' of Radio Pulsar J1819+1305

We present a single-pulse study of the four-component pulsar J1819+1305, whose ``null'' pulses bunch at periodic intervals of around 57 times the rotation period. The emission bursts between the null bunches exhibit characteristic modulations at two shorter periodicities of approximately 6.2 and 3 times the rotation period, the former found largely in the two outer components, and the latter only in the first component. Many bursts commence with bright emission in second component, exhibit positive six-period drift across the full profile width, and end with 3-period modulation in the leading component. The 57-period cycle can be modelled geometrically as a sparsely filled subbeam carousel with nulls appearing whenever our line of sight intersects a circulating empty region. This interpretation is compatible with other recent evidence for periodic, carousel-related nulling and appears to support the physics of a polar-gap emission model for ``drifting'' subpulses, but the subtle structure of the emission bursts defies an easy explanation.Comment: 8 pages, 9 figure