Naval Logistics

Aiming at an approach to royal policies on naval logistics in a key period for the Portuguese maritime expansion (1481 - 1640), corresponding to the reigns of King John II to Philip III of Portugal, the work seeks at presenting a statistical approach to the type and number of measures taken by the central government on key areas of the naval logistics, namely, shipbuilding; organization of navigation; naval defense and seafarers – all crucial elements to the levels of (un) success of the Portuguese overseas expansion. This dissertation intends to provide an approach to the following research questions: did it exist (or not) royal concerted policies on the various sectors involved on the naval logistics; which lines of evolution of these policies are identified, in correlation with contextual challenges; which levels of coordination and control of naval activities are performed by the crown, in order to assess the space left to individual initiative.
As a working methodology, and in the absence of a systematic survey on these issues, it was decided to carry out a survey of orientations taken by the Portuguese crown through a comprehensive analysis of archival holdings identified in a huge range of inventories and published collections of laws; a rating of the legal typology, areas and focus of such crown intervention, based on a taxonomy developed for this purpose; a statistical analysis to determine cyclical trends within the periods under analysis; a content analysis of some structural documentation.
Results seem to stress a crown interventionism through privileges and rules, which increase in contexts of challenges to the Portuguese sea power.
This work is assumed as a first step, essential to the pursuit of future research, more limited, both chronological and thematically, able to analyze and check in more detail the trends identified.

Aiming at an approach to royal policies on naval logistics in a key period for the Portuguese maritime expansion (1481 - 1640), corresponding to the reigns of King John II to Philip III of Portugal, the work seeks at presenting a statistical approach to the type and number of measures taken by the central government on key areas of the naval logistics, namely, shipbuilding; organization of navigation; naval defense and seafarers – all crucial elements to the levels of (un) success of the Portuguese overseas expansion. This dissertation intends to provide an approach to the following research questions: did it exist (or not) royal concerted policies on the various sectors involved on the naval logistics; which lines of evolution of these policies are identified, in correlation with contextual challenges; which levels of coordination and control of naval activities are performed by the crown, in order to assess the space left to individual initiative.
As a working methodology, and in the absence of a systematic survey on these issues, it was decided to carry out a survey of orientations taken by the Portuguese crown through a comprehensive analysis of archival holdings identified in a huge range of inventories and published collections of laws; a rating of the legal typology, areas and focus of such crown intervention, based on a taxonomy developed for this purpose; a statistical analysis to determine cyclical trends within the periods under analysis; a content analysis of some structural documentation.
Results seem to stress a crown interventionism through privileges and rules, which increase in contexts of challenges to the Portuguese sea power.
This work is assumed as a first step, essential to the pursuit of future research, more limited, both chronological and thematically, able to analyze and check in more detail the trends identified.

Este documento establece la vigencia e importancia que reviste la Logística en el ámbito militar y naval específicamente; su aplicación y práctica se evidencia en la logística operativa que vincula a la logística estratégica con la táctica en un teatro de operaciones, la debida aplicación de la logística parte de los aspectos doctrinarios y teóricos que se fundamentan en la logística pura y que sin estos cimientos sería inadecuada su accionar. La logística naval operativa parte de su taxonomía, está caracterizada por la influencia del medio acuífero, adverso e improductivo; proporciona y mantiene la capacidad operativa naval y fluvial, suministrado el apoyo necesario en el lugar y momento adecuado, fundamentado en una combinación de principios y funciones cuya acción transforma las necesidades en apoyo real operativo a las unidades a flote.

This thesis will analyze the U.S. military’s wartime use of Ulithi, a Pacific atoll in what is now known as the Federated States of Micronesia, which served as one of the largest military bases during the Second World War. The atoll, occupied in the final days of September 1944, was quickly established as the Allies’ forward base of operations, and was used to stage large operations against Japanese islands such as Leyte and Okinawa. In addition to Ulithi’ s lagoon, five of the atoll’s islands were utilized for various military operations, while the lagoon served as an anchorage and re-supply and repair harbor, saving ships thousands of miles and precious days of transit time. The lagoon itself, one of the largest natural anchorages in the world, could hold over seven hundred ships simultaneously, including the navy’s largest aircraft carriers and battleships. With so many berths, the Navy’s Service Squadron Ten was able to use the lagoon for large repair and re-supply operations without ever building a single warehouse or repair facility on land.

This thesis is concerned with two facets of the operation at Ulithi. The first is the operational aspects of the atoll. As such, this thesis will examine the construction and use of the various islands in the larger construct of the Allied military operations in the Pacific Theater of WWII. This study will examine the occupied islands and offer an analysis of the functional use of each. The second aspect of Ulithi that this thesis will study is the human condition of the men who worked on one of the atoll’s islands or in the lagoon. The narrative will provide the reader with specific examples and analyses of daily life on the atoll as men worked to prepare various battle fleets for combat in the Pacific Theater of the war. Additionally, this study will examine the memories of those who stopped at Mogmog, the fleet’s recreation island, on their way to and from combat zones in the Pacific in order to assess its impact on morale.

We consider design of control charts in the presence of machine stoppages that are exogenously imposed (as under jidoka practices). Each stoppage creates an opportunity for inspection/repair at reduced cost. We first model a single machine facing opportunities arriving according to a Poisson process, develop the expressions for its operating characteristics and construct the optimization problem for economic design of a control chart. We, then, consider the multiple machine setting where individual machine stoppages may create inspection/repair opportunities for other machines. We develop exact expressions for the cases when all machines are either opportunity-takers or not. On the basis of an approximation for the all-taker case, we then propose an approximate model for the mixed case. In a numerical study, we examine the opportunity taking behavior of machines in both single and multiple machine settings and the impact of such practices on the design of an X – Q C chart. Our findings indicate that incorporating inspection/repair opportunities into QC chart design may provide considerable cost savings. © 2009 Wiley Periodicals, Inc. Naval Research Logistics 2009

De carácter ambicioso e inovador nas linhas de pesquisa a que chega, a investigação realizada, e agora em livro, é uma aproximação às políticas régias sobre logística naval num período fulcral para o expansionismo marítimo português (1481 – 1640). Procura-se apresentar uma abordagem estatística ao tipo e número de medidas tomadas pelo poder central sobre áreas–chave da logística naval, a saber: construção naval; organização da navegação; defesa naval e formação e creditação de homens do mar – todas peças determinantes nos níveis de (in)sucesso da Expansão Portuguesa. A par de uma reflexão sobre as tendências de gestão apuradas, que compõe um segundo momento desta investigação, desenvolve-se um processo metodológico que passa pelo recenseamento de medidas tomadas pela Coroa Portuguesa, na ausência de um levantamento sistemático sobre essas matérias.

Page 1. A Facility Reliability Problem: Formulation, Properties, and Algorithm Michael Lim,1 Mark S. Daskin,2,3 Achal Bassamboo,3 Sunil Chopra3,2 1 Department of Business Administration, University of Illinois at Urbana–Champaign, Champaign, Illinois 61820 ...

In this article, we introduce the capacitated warehouse location model with risk pooling (CLMRP), which captures the interdependence between capacity issues and the inventory management at the warehouses. The CLMRP models a logistics system in which a single plant ships one type of product to a set of retailers, each with an uncertain demand. Warehouses serve as the direct intermediary between the plant and the retailers for the shipment of the product and also retain safety stock to provide appropriate service levels to the retailers. The CLMRP minimizes the sum of the fixed facility location, transportation, and inventory carrying costs. The model simultaneously determines warehouse locations, shipment sizes from the plant to the warehouses, the working inventory, and safety stock levels at the warehouses and the assignment of retailers to the warehouses. The costs at each warehouse exhibit initially economies of scale and then an exponential increase due to the capacity limitations. We show that this problem can be formulated as a nonlinear integer program in which the objective function is neither concave nor convex. A Lagrangian relaxation solution algorithm is proposed. The Lagrangian subproblem is also a nonlinear integer program. An efficient algorithm is developed for the linear relaxation of this subproblem. The Lagrangian relaxation algorithm provides near-optimal solutions with reasonable computational requirements for large problem instances. © 2008 Wiley Periodicals, Inc. Naval Research Logistics, 2008