A numerical model is developed to simulate waves generated by high-speed vessels traveling at subcritical, transcritical and supercritical speeds in shallow water over water of varying depth. The waves in the far field are assumed to be weakly dispersive with wavelengths much longer than the water depth. The vertical profile of the flow field is obtained from a second-order Taylor series expans...

In this work, we address the unrestricted Dynamic Container Relocation Problem (DCRP). The DCRP is an extension of the Container Relocation Problem (CRP) that is NPhard. The CRP aims to empty a single yard-bay, which contains containers with a given retrieval sequence from the yardbay, such that the total number of relocations is minimized. The DCRP extends the CRP so that containers both arriv...

In container terminal operations, the storage yard plays an important role for a terminal’s overall performance because it links the seaside and landside and serves as the buffer area for storing containers. Therefore, storage and stacking logistics has become a field that increasingly attracts attentions in both academic and practical research during the recent years. The purpose of this artic...

This quarter we modified the database to account for the ship classification and ship counting guidance in the Secretary of the Navy’s Instruction 5030.8A [3]. First, we inserted four new fields: 1. 5030.8A Force Category – “Battleforce” or “Non-Battleforce.”1, 2 2. 5030.8A Ship Category – “Combatant Ship,” “Auxiliary Ship,” or “Combatant Craft.” 3. 5030.8A Ship Classification – For example: “W...

To reduce water traffic accident, identification of overloaded ships has been of major importance for enforcing inland river management, especially in some developing countries. Driven by rising oil prices or other economic benefits, the ship overload phenomenon continued to occur in China. Therefore, overloaded ship detection has been of a key factor of shipping safety. This paper presented a ...

This study analyses the concept of cost functions for semi-automated Straddle Carrier (SC), Rubber Tyred Gantry (RTG) and automated Rail Mounted Gantry (RMG) container yard operating cranes. It develops a generic cost based model for a pair-wise comparison, analysis and evaluation of economic efficiency and effectiveness of container yard equipment to be used for decision-making by terminal pla...

Our recent studies revealed that the inositol phosphatase Src homology 2 (SH2) domain-containing inositol phosphatase (SHIP) is phosphorylated and associated with Shc exclusively under negative signaling conditions in B cells, which is due to recruitment of the SHIP SH2 domain to the FcgammaRIIb. In addition, we reported that SHIP-Shc interaction involves both SHIP SH2 and Shc phosphotyrosine b...

The SH2-containing inositol-5'-phosphatase, SHIP, restrains bone marrow-derived mast cell (BMMC) degranulation, at least in part, by hydrolyzing phosphatidylinositol (PI)-3-kinase generated PI-3,4,5-P(3) (PIP3) to PI-3,4-P(2). To determine which domains within SHIP influence its ability to hydrolyze PIP3, bone marrow from SHIP(-/-) mice was retrovirally infected with various SHIP constructs. In...

The General Yard Allocation Problem (GYAP) is a resource allocation problem faced by the Port of Singapore Authority. Here, space allocation for cargo is minimized for all incoming requests for space required in the yard within time intervals. The GYAP is NP-hard for which we propose several heuristic algorithms, including Tabu Search, Simulated Annealing, Genetic Algorithms and the recently em...

PURPOSE Although knee arthroscopy is described as minimally invasive, return to activity has been poorly quantitated. Our purpose is to test the hypothesis that most patients return to unrestricted activity within 4 weeks after knee arthroscopy. METHODS After prospective power analysis, 72 consecutive patients who underwent arthroscopic knee partial medial meniscectomy, partial lateral menisc...