Faculty Scholarship, Research, and Creative Works http://hdl.handle.net/10211.3/123264 2020-07-14T14:22:26Z Validation Theory and Culturally Relevant Curriculum in the Information Literacy Classroom http://hdl.handle.net/10211.3/216480 Validation Theory and Culturally Relevant Curriculum in the Information Literacy Classroom Quiñonez, Torie L.; Olivas, Antonia P. In four separate undergraduate information literacy classes where students predominantly identified as Latinx, two instruction library faculty revamped the standard information literacy curriculum to emphasize Latinx scholarship. They affirmed student life experience as authority in order to understand how validation theory affects the student scholar identity of first year Latinx college students from a large metropolitan area in the U.S.-Mexico border region. The two librarians who designed and team-taught these information literacy sessions are also both Latinx and come from urban borderlands backgrounds. Both identify as first-generation college students and one identifies as having a mixed status family background. 2020-01-01T00:00:00Z Poached Barrier Reef: Evaluating Articles on the Web http://hdl.handle.net/10211.3/216301 Poached Barrier Reef: Evaluating Articles on the Web Opdahl, Judy; Kane, Denise First-year undergraduate students are novices at consuming web information due to a lack of critical information literacy skills. This recipe is designed to satisfy first-year students’ thirst for knowledge by demonstrating web article evaluation and allowing students to savor the experience of the internet buffet. 2020-01-01T00:00:00Z Vertical Expansion: A Solution for Future Container Terminals http://hdl.handle.net/10211.3/215084 Vertical Expansion: A Solution for Future Container Terminals Zaerpour, Nima; Gharehgozli, Amir; De Koster, René Container terminals play a major role in the growth of international trade. They need to accommodate the increasing number of containers while their space is limited, particularly close to major cities. One approach, often used in practice, is horizontal expansion through expensive land reclamation projects. In contrast, vertical expansion uses the available land more efficiently by storing containers in high-bay warehouses. In this paper, we study a next generation container terminal consisting of container storage towers. A container tower is a cylindrical structure which consists of multiple levels of storage locations, lifts, and input and output (I/O) points (or depots). The lifts can rotate and can move containers horizontally and vertically to transport containers between the storage locations and the I/O points. We investigate several design questions: 1) What is the optimal configuration of a container tower? 2) How does a container tower compare to a traditional container block of the same storage capacity, in terms of throughput capacity? 3) Is a container tower financially feasible compared to an existing container block of the same storage capacity? 4) What are the impacts of varying design parameters on the container tower performance and its financial feasibility? Question 1 is answered by obtaining closed-form expressions for the tower travel time, formulating the problem as a nonlinear optimization model, and deriving closed-form expressions for the tower optimal configuration. Questions 2 and 3 are answered by using closed-form expressions in order to compare the performance of two systems. Question 4 is answered by a sensitivity analysis for the design parameters of the container tower. The results show that, compared to a traditional container block, the container tower can increase the annual throughput, while saving on the required footprint at competitive investment costs. In particular, the container tower can increase the annual throughput up to 120% compared to a container block of the same storage capacity. 2019-08-01T00:00:00Z Automated or manual storage systems: do throughput and storage capacity matter? http://hdl.handle.net/10211.3/215083 Automated or manual storage systems: do throughput and storage capacity matter? Zaerpour, Nima; Volbeda, Rosalie; Gharehgozli, Amir Selecting the appropriate type of capital-intensive storage systems is an important decision for warehouse managers. However, such a decision is complex due to various available storage systems. In addition, warehouse requirements such as storage capacity and throughput influence this decision. This research provides insights that enable managers to select the suitable type of storage system which minimizes the investment and operational costs while the warehouse design requirements, in particular the storage capacity and throughput, are met. To obtain these insights, an Excel®-based decision support system is developed for a set of most common types of manual and crane-based automated storage systems in pallet and case warehouses. The decision support system uses the closed-form formulas from the warehousing literature and also Monte Carlo simulation to approximate the travel time in each storage system. The results show that the choice of automated or manual storage system and the associated costs depend on the required capacity and throughput. When the storage capacity and throughput are low, the manual pallet racks are the preferred storage system and incur the lowest costs. As the storage capacity and throughput increase, there is a need for more compact storage systems that can store more loads in a smaller footprint. Thus, for medium to high capacity levels, double-deep automated storage systems and deep-lane compact storage systems are the ones with the lowest investment and operational costs. The results for the case warehouses show that the investment and operational costs increase rapidly with an increase of the throughput. In particular, the increase is noticeable for operational costs of shelf rack system and the investment cost of miniload system where the storage capacity and throughput level are high. 2019-01-01T00:00:00Z
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