318 research outputs found

    The technical efficiency of SACU Ports: a data envelopment analysis approach

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    There ever growing international trade and increasing congestion of ports led to an increased focus attention on technical efficiency. Seaports are a central and necessary component in facilitating international trade. Yet, there is only limited comprehensive information available on the technical efficiency of African ports. The study investigated the technical efficiency of the SACU ports during the period 2014-2019 using DEA model. The DEA model is effective in resolving the measurement of port efficiency since the calculations are nonparametric and do not need definition or knowledge of a priori weights for the inputs or outputs, as is necessary for estimate of efficiency using production functions. To identify the roots of the technical inefficiency of the SACU ports, the study subdivided technical efficiency into pure technical and scale efficiency. The model used cargo handled, container throughput, ship calls as output variables. Whilst, quay cranes, number of tugboats, draft, quay length and number of quays were used as input variables. The study used the scores of DEA-BCC model as explanatory variables in Tobit model. The results showed that quay cranes and quay length are the cause of technical inefficiencies in the ports.Thesis (MCom (Economics)) -- Faculty of Business and Economic Sciences, 202

    The technical efficiency of SACU Ports: a data envelopment analysis approach

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    There ever growing international trade and increasing congestion of ports led to an increased focus attention on technical efficiency. Seaports are a central and necessary component in facilitating international trade. Yet, there is only limited comprehensive information available on the technical efficiency of African ports. The study investigated the technical efficiency of the SACU ports during the period 2014-2019 using DEA model. The DEA model is effective in resolving the measurement of port efficiency since the calculations are nonparametric and do not need definition or knowledge of a priori weights for the inputs or outputs, as is necessary for estimate of efficiency using production functions. To identify the roots of the technical inefficiency of the SACU ports, the study subdivided technical efficiency into pure technical and scale efficiency. The model used cargo handled, container throughput, ship calls as output variables. Whilst, quay cranes, number of tugboats, draft, quay length and number of quays were used as input variables. The study used the scores of DEA-BCC model as explanatory variables in Tobit model. The results showed that quay cranes and quay length are the cause of technical inefficiencies in the ports.Thesis (MCom (Economics)) -- Faculty of Business and Economic Sciences, 202

    Prevention of oil spills by tankers : feasibility study of a safety and environmental index (SEI)

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    Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1995.Includes bibliographical references (leaves 70-71).by Laurent Rivollier.M.S

    Пособие по английскому языку для студентов специальности 1-37 03 02 "Кораблестроение и техническая эксплуатация водного транспорта"

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    Пособие написано в соответствии с типовой программой по иностранным языкам для неязыковых вузов и состоит из четырех разделов, построенных по единому принципу, направленных на развитие языковых и коммуникативных умений и навыков в профессиональной сфере, а также на формирование навыков понимания, перевода и реферирования текстов по специальности. Материалом послужили оригинальные тексты, которые предназначены как для аудиторного чтения, так и для самостоятельной работы. Пособие предназначено для студентов, обучающихся по специальности 1-37 03 02 «Кораблестроение и техническая эксплуатация водного транспорта». Может быть использовано широким кругом читателей, желающих повысить и расширить уровень владения иностранным языком в области эксплуатации водного транспорта

    The retention of women in the marine operations.

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    Master’s Degree. University of KwaZulu-Natal, Durban.Abstract The marine industry has been known over the years for the responsibility of carrying over 90 percent of the world trade and maintaining the logistical pipeline in the international crisis. The industry affects almost everyone globally, with regards to their daily living, as the goods that are consumed in every household are shipped in and out, worldwide. This study focused on the female marine pilots, the female tug masters and marine engineers of Transnet National Ports Authority (TNPA)’s 8 ports, who penetrated the male dominated industry, the maritime industry. The aim of the study was to investigate the retention of female mariners in this male-dominated industry. To achieve this, the qualitative methodology was employed. Purposive sampling was done to recruit the participants for this study. A non-probability sample of 18 female mariners was drawn out of a population of approximately 100 TNPA women working as marine pilots, marine engineers and tug masters. The findings of the study indicated that only a minority of women can succeed in this industry, but the majority is unable to stand against the challenges, which result in them giving up their careers. The findings of the study also revealed the notion that the maritime industry is a man’s world, the stereotype that a woman should be at home cooking in the kitchen and bearing children. The participants of the study also hinted on the rising challenge of sexual harassment, in addition to the gender stereotypes. This demoralises the female mariners, whose decisions are also often downplayed by their male counterparts. Based on these findings, it was recommended that more females should be attracted to this industry, for instance, in the form of sponsorships to support them to pursue studies in this field. It was also recommended that awareness should be raised, in order for potential mariners to familiarise themselves with the industry, prior to joining it. Essentially, it was noted that policy makers should ensure that affirmative action is emphasised, for women to realise their dreams of becoming mariners. Key words: female mariners; retention, marine sector.Abstract available in the PDF

    Global Trade Impacts: Addressing the Health, Social and Environmental Consequences of Moving International Freight Through Our Communities

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    Examines freight transportation industry trends; the impact of global trade on workers, the environment, and health in both exporting and importing countries; and organizing strategies and policy innovations for minimizing the damage and ensuring health

    The Ledger and Times, August 13, 1962

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    Evaluation of Hybrid Battery System for Platform Support Vessels

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    Master's thesis in Offshore structural engineeringIn the last few years, the car industry has developed hybrid battery systems with lower battery price, higher capacity and improved safety. These improvements in performance have led to an increased interest to utilize the technology in marine applications. To satisfy the requirements of redundancy in critical situations vessels are required to run multiple engines at low to medium loads during most of operations in station keeping. Traditional combustion engines are designed to have the optimal level of fuel consumption and lowest emission per kilowatt hour when operating at medium to high loads. This practice therefore represents an overall loss and is unfavorable for environment and fuel consumption. This thesis investigates the effect and viability of applying a Hybrid Battery System (HBS) on a Platform Support Vessel (PSV) by using the battery to optimize the original power system. For the case study, the vessel Viking Energy has been considered. Viking Energy is the first vessel with a HBS approved as a redundant power source in critical operations. The system allows the vessel to reduce the numbers of active engines while ensuring instant available power if required. The remaining active engines are then operating closer to the optimal level, ensuring lower emission and fuel consumption per kilowatt hour. This study analyzes and quantifies the effect in fuel consumption and cost after implementing the HBS to the PSV. It also analyzes the weathers influence of the fuel consumption for the vessel with and without HBS. The study is based on a six-month sample period where the HBS was fully operative. The analysis gave an annual reduction in fuel of 13% comparing the sampling period with historical data given the same time distribution for the vessel. Normalizing both to actual distribution over a three-year operation period gives a calculated reduction of 17% due to more favorable distribution. The difference is mainly due to higher portion of Dynamic Positioning (DP) mode in the historical data. The economical evaluation concluded that the minimum threshold for overall fuel reduction to be 15% for the investment to break even in a ten-year perspective. A vessel is recommended to operate 34% or more of the time in DP or a mode providing similar level of fuel saving to meet an overall reduction of 15%

    A State of War: Florida from 1939 to 1945

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    World War II profoundly impacted Florida. The military geography of the State is essential to an understanding the war. The geostrategic concerns of place and space determined that Florida would become a statewide military base. Florida’s attributes of place such as climate and topography determined its use as a military academy hosting over two million soldiers, nearly 15 percent of the GI Army, the largest force theUS ever raised. One-in-eight Floridians went into uniform. Equally,Florida’s space on the planet made it central for both defensive and offensive strategies. The Second World War was a war of movement, and Florida was a major jump off point forUSforce projection world-wide, especially of air power. Florida’s demography facilitated its use as a base camp for the assembly and engagement of this military power. In 1940, less than two percent of the US population lived in Florida, a quiet, barely populated backwater of the United States.[1] But owing to its critical place and space, over the next few years it became a 65,000 square mile training ground, supply dump, and embarkation site vital to the US war effort. Because of its place astride some of the most important sea lanes in the Atlantic World,Florida was the scene of one of the few Western Hemisphere battles of the war. The militarization ofFloridabegan long before Pearl Harbor. The pre-war buildup conformed to theUSstrategy of the war. The strategy of theUS was then (and remains today) one of forward defense: harden the frontier, then take the battle to the enemy, rather than fight them inNorth America. The policy of “Europe First,” focused the main US war effort on the defeat of Hitler’sGermany, evaluated to be the most dangerous enemy. In Florida were established the military forces requiring the longest time to develop, and most needed to defeat the Axis. Those were a naval aviation force for sea-borne hostilities, a heavy bombing force for reducing enemy industrial states, and an aerial logistics train for overseas supply of expeditionary campaigns. The unique Florida coastline made possible the seaborne invasion training demanded for USvictory. The civilian population was employed assembling mass-produced first-generation container ships, while Floridahosted casualties, Prisoners-of-War, and transient personnel moving between the Atlantic and Pacific. By the end of hostilities and the lifting of Unlimited Emergency, officially on December 31, 1946, Floridahad become a transportation nexus. Florida accommodated a return of demobilized soldiers, a migration of displaced persons, and evolved into a modern veterans’ colonia. It was instrumental in fashioning the modern US military, while remaining a center of the active National Defense establishment. Those are the themes of this work. [1] US Census of Florida 1940. Table 4 – Race, By Nativity and Sex, For the State. 14
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