Journal articles: 'Naval activity'

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Yevhen, BORYSOV. "LEGAL REGULATION OF NAVAL FORCES ACTIVITY: WORLD EXPERIENCE." Foreign trade: economics, finance, law 117, no. 4 (September 10, 2021): 36–47. http://dx.doi.org/10.31617/zt.knute.2021(117)04.

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Background. The analysis of the evolution of the regulation of the navy cannot be carried out without considering the reflection of the relevant aspects in the naval historical thought. These scientific researches first of all have no legal orientation and have as their subject the content and nature of the activity of the navy, in particular in measuring its formation and development. At the same time, their generalization and evaluation in the legal dimension would be useful in the context of determining the relationship between historical thought and the development of naval law. An analysis of recent research and publications has shown that, despite aspects of the attention of legal historians to the issue of regulatory support of the armed forces, there is no relevant works on the evolution of the legal regulation of the navy. The aim of the article is to correlate global historical thought and legal support for the activities of the navy. To solve this goal, it is necessary to determine the development of relevant historical thought, to characterize its implementation in the works on naval doctrine and strategy, to assess the importance of relevant works for the development of naval law. Materials and methods. In the course of the research historical-legal, comparative, systemic, epistemological, hermeneutic, biographical methods were used. Results. The reflection of aspects of legal regulation of activity of naval forces in works of historians of fleet is investigated. The formation of the history of the navy from the seventeenth century in terms of special research and works on naval tactics and strategy is considered. It is proved that at the first stage these researches had the character of empirical generalization and provision of tactical activity of the sailing and then mechanized fleet, but from the end of the XIX century this experience was gained in the development of a maritime strategy. Conclusion. Historical studies of naval development first emerged at the appropriate scientific level as part of the development of naval tactics and strategies by French, British and American authors, whose works constitute an interconnected universal and universally recognized system of scientific research begun in the late seventeenth century. At the first stage, these studies were in the nature of empirical generalization and ensuring the tactical activities of the sailing and then mechanized fleet. But from the end of the XIX century this experience was gained in the development of a naval strategy, which gained universal character and indisputable authority for the naval forces of the most countries. In addition to use in works on naval tactics and strategy, the history of the navy from the eighteenth century reflected in biographical works, and in the twentieth century the most of the relevant historical works began to have the character of memoirs. Because the world-renowned fundamental works on naval strategy and tactics belong primarily to American and British authors, the domestic dimension of historical scientific research in this area is extremely limited. Thus, these issues require new research. Keywords: naval forces, history of navy, naval law, naval doctrine, naval strategy.

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Alvarez Franco, Oscar Luis. "Disfunción Endotelial en el personal naval con obesidad en actividad militar." Horizonte Médico (Lima) 15, no. 4 (December 14, 2014): 33–43. http://dx.doi.org/10.24265/horizmed.2015.v15n4.06.

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McCaughey, B. G., J. Garrick, L. C. Carey, and J. B. Kelley. "Naval Support Activity Hospital, Danang, Combat Casualty Study." Military Medicine 153, no. 3 (March 1, 1988): 109–14. http://dx.doi.org/10.1093/milmed/153.3.109.

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Kuningas, Sanna, Petter H. Kvadsheim, Frans-Peter A. Lam, and Patrick J. O. Miller. "Killer whale presence in relation to naval sonar activity and prey abundance in northern Norway." ICES Journal of Marine Science 70, no. 7 (September 4, 2013): 1287–93. http://dx.doi.org/10.1093/icesjms/fst127.

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Abstract Kuningas, S., Kvadsheim, P. H., Lam, F-P. A., and Miller, P. J. O. 2013. Killer whale presence in relation to naval sonar activity and prey abundance in northern Norway. – ICES Journal of Marine Science, 70: . In this study, retrospective data on naval sonar activity and prey abundance were correlated with killer whale sightings within a fjord basin in northern Norway. In addition, passive acoustic and visual marine mammal surveys were conducted before, during, and after a specific navy exercise in 2006. Herring abundance was the main factor affecting killer whale presence. Naval sonar, either operational navy sonar exercises (Flotex) or experimental sonar activity (CEE) alone, did not explain killer whale occurrence. However, naval sonar activity during a period of low prey availability seemed to have had a negative effect on killer whale presence. We conclude that the level of reaction to sonar can be influenced by multiple factors, including availability of prey.

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Korczewski, Zbigniew. "An overview of the didactic and scientific activity at the faculty of mechanical and electrical engineering of the Polish Naval Academy." Polish Maritime Research 14, no. 4 (October 1, 2007): 74–82. http://dx.doi.org/10.2478/v10012-007-0044-7.

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An overview of the didactic and scientific activity at the faculty of mechanical and electrical engineering of the Polish Naval Academy The article characterises the didactic and scientific activity at the Faculty of Mechanical and Electrical Engineering of the Polish Naval Academy. The current didactic offer and the areas of current research work are presented, along with main characteristics expected from the naval-specialisation graduate majoring in mechanics and machinery construction, in the context of the Polish Navy technical staff education system. Discussed are the subjects of research activities initiated in particular Faculty units, and leading scientific problems which have been studied for years within the field of widely understood utilisation of naval technology.

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Wooding, Jonathan M. "Dark Age naval power, a reassessment of Frankish and Anglo-Saxon naval activity (review)." Parergon 11, no. 1 (1993): 152–53. http://dx.doi.org/10.1353/pgn.1993.0018.

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Grabowski, Tomasz. "The Activity of Ptolemy II’s Fleet in the Aegean Sea." Electrum 27 (2020): 131–48. http://dx.doi.org/10.4467/20800909el.20.007.12797.

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Ptolemy I, the founder of the Lagid dynasty, heavily invested in the navy and thus established the Ptolemies as a formidable sea power, his work continued by his successor Ptolemy II Philadelphus, who employed his fleet to pressure lesser powers of the Mediterranean. The following article examines the activity of Ptolemy II’s fleet in the Aegean Sea. At the end of the 270s, Ptolemy II sent a naval expedition to the Black Sea; the operation helped him establish a political relationship with Byzantion and demonstrated that maintaining a naval presence on foreign waters could influence other rulers to favor the Ptolemies. The Ptolemaic fleet under Ptolemy II Philadelphus operated in the Aegean during two major international conflicts, the Chremonidean War and the Second Syrian War. In this article I argue that the surviving evidence on the Chremonidean War indicates that Ptolemy II’s aim was not to subdue Greece or even Macedonia but to maintain the Ptolemaic hold over the Aegean with Egypt’s relatively small naval force under Patroclus. In turn, the outcome of the Second Syrian War led to a considerable weakening of the Lagids’ position in the Aegean. Ptolemy II adroitly cultivated international relations through diplomacy, propaganda, international euergetism and spreading his dynastic cult; sending the Ptolemaic fleet to patrol foreign seas constituted one crucial instrument Philadelphus could employ to shift the Mediterranean balance of power in his favor.

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Soshkin, P. A., V. G. Belov, D. S. Zabrodsryi, A. V. Naumov, and A. G. Anohin. "PHYSICAL ACTIVITY OF MILITARY-MARITIME SPECIALISTS AS A FACTOR OF PRESERVING THEIR PROFESSIONAL OPERABILITY." Marine Medicine 4, no. 4 (January 15, 2019): 32–37. http://dx.doi.org/10.22328/2413-5747-2018-4-4-32-37.

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The purpose of the study was to assess the physical activity of naval specialists in the conditions of the march, for which they evaluated their physical performance and revealed its dependence on the regularity of the exercise program. In total, 80 crew members of the ship aged 20 to 40 years old were surveyed during a two-month hike with a different physical training regime — not engaged, engaged in physical training under the guidance of a ship-driver according to a specially developed program, and doing it independently. As a result of the study, it was revealed that naval specialists who were not engaged in physical training during a hike, have multidirectional dynamics of their physical performance, improving in the middle of the hike, and returning to the initial state by the end of the hike. Naval specialists, who regularly exercised independently, have a positive dynamics of their physical performance, which significantly increases both in the middle and at the end of the cruise. A tendency towards a deterioration in the level of physical performance is observed among persons engaged in independent and irregular ways at the end of a hike. As a result of the research, it has been established that the use of a specially developed training program for physical activity allows us not only to preserve, but also improve the physical performance of naval specialists in the conditions of a hike.

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Soshkin, P. A., V. G. Belov, and D. S. Zabrodskyi. "ANALYSIS OF CENTRAL SELF-FUNCTIONS AS PREDICTORS OF ADAPTATION IN NAVAL SPECIALISTS FROM DIFFERENT AGE GROUPS." Marine Medicine 6, no. 3 (September 30, 2020): 34–41. http://dx.doi.org/10.22328/2413-5747-2020-6-3-34-41.

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Introduction. The study of the central self-functions, manifested by an integral system of forms of mental activity, is highly relevant in terms of optimizing the adaptation of naval specialists.Purpose: to assess the central self-functions as predictors of adaptation in naval specialists from different age groups. Materials and methods. 159 naval specialists were examined, divided into 3 age groups — group 1 (n=33) — persons aged 25 to 30 years, group 2 (n=68) — persons aged 31 to 40 years, and the third group (n=58) — persons aged 41 to 45 years, whose central self-functions were studied using Ammon’s self-structural test. Results and discussion. It has been established that the constructive central I-functions of naval specialists contribute to the optimization of the adaptation of naval specialists, while the destructive central I-functions prevent this. The deficient central self-functions of naval specialists occupy an intermediate position between constructive and destructive indicators.Conclusion. To optimize the adaptation of naval specialists, it is advisable to carry out corrective measures aimed at shifting the central self-functions towards design indicators.

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10

Rose, Stephen. "Naval activity in the exclusive economic zone—Troubled waters ahead?" Ocean Development & International Law 21, no. 2 (January 1990): 123–45. http://dx.doi.org/10.1080/00908328909545927.

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11

Kitowski, Zygmunt. "Faculty of Mechanical and Electrical Engineering of Polish Naval Academy — eighty-five years of training and scientific research work. Part I: 1931–1955." Zeszyty Naukowe Akademii Marynarki Wojennej, no. 4 (December 8, 2017): 1. http://dx.doi.org/10.5604/01.3001.0010.6749.

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The Faculty of Mechanical and Electrical Engineering is an heir to the Faculty of Technology of the School of Naval Cadets established in Toruń in 1931. This article presents the most important events associated with the development of the faculty in its eighty-five years of uninterrupted activity, including the WW II period in Great Britain, when the first in the history of Poland maritime school abroad, was established aboard ORP ‘Gdynia’ in the British sea base of Devenport. The first part of the article concludes in 1955, i.e. the moment the Higher Naval School (undergraduate school) was established. The second part will cover the period of 1955–2016, i.e. the Naval High School and the Naval Academy.

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Tyagnerev, A. T., E. N. Bezkishkiy, O. V. Lobozova, V. A. Stepanov, S. N. Linchenko, S. G. Afendikov, and K. S. Karakhanyan. "THE PROBLEM OF FUNCTIONAL STATE AND WORKING CAPACITY CONTROL OF NAVAL PERSONNEL IN THE PROCESS OF PROFESSIONAL ACTIVITY." Marine Medicine 5, no. 4 (November 29, 2019): 74–83. http://dx.doi.org/10.22328/2413-5747-2019-5-4-74-83.

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Introduction. The increase in tension and complexity of the naval personnel work is naturally accompanied by an increase in the risk of formation of unacceptable functional states and a critical decrease in professional reliability. Timely detection and prevention of such states is impossible without the implementation of dynamic monitoring of naval personnel working capacity in the process of professional activity. Purpose of research — substantiation of complex technology of functional state and working capacity control of naval personnel. Materials and methods. During performance of work 215 ship experts of various profile of activity were examined. The studies were carried out using an automated functional state screening control system designed on a modular basis and implemented on a number of Navy orders. The results of research. The systems of dynamic control available at the Navy are an effective tool for early detection of borderline functional States of seafarers; determination of the working capacity stage in which the specialist is currently located; development of recommendations for the implementation of corrective measures. However, in real life, these systems are practically not used, there are no guiding documents regulating their application. Implementation of such automated systems on other ship projects requires adaptation and improvement of such systems. In addition, the Navy has no technical means to monitor the functional status of personnel directly during the performance of particularly complex tasks, the struggle for survivability and other extreme situations. Conclusion. The basic concept of screening control and monitoring of the naval personnel functional state in the process of professional activity is proposed.

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Tibbitts, B. F., and P. A. Gale. "The Naval Ship Design/Production Interface." Journal of Ship Production 2, no. 03 (August 1, 1986): 185–95. http://dx.doi.org/10.5957/jsp.1986.2.3.185.

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The paper discusses, from a ship designer's perspective, some of the current topics and issues relating to the interface between naval ship design and production. The current environment within which naval ship design activity is taking place is described. Notable current views on Navy ship design and how it might be improved are summarized. Navy design topics pertinent to improving ship producibility, operability, maintainability and survivability are discussed and examples from recent ship designs are. presented. Issues which result from apparent conflicts in current design initiatives and critiques of the Navy ship design process are highlighted and discussed. Finally, some general conclusions are drawn.

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Achão Filho, Nélio, and Osvaldo Luíz Gonçalves Quelhas. "Critérios para aplicação de ABC (Activity Based Costing) na indústria naval." Production 13, no. 1 (2003): 91–102. http://dx.doi.org/10.1590/s0103-65132003000100008.

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O presente trabalho tem por objetivo conceituar o que é ABC (Activity Based Costing) e apresentar, de forma sistemática, uma sugestão de critérios para aplicação em empresa de construção naval. Basicamente, o estudo pretende contribuir, através do efeito demonstração do estudo de caso, para a conscientização quanto as dificuldades e oportunidades oferecidas pela implementação de um sistema ABC, numa área carente de novas metodologias gerenciais.

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Deluga, Ronald J. "The Relationship of Leader and Subordinate Influencing Activity in Naval Environments." Military Psychology 3, no. 1 (March 1991): 25–39. http://dx.doi.org/10.1207/s15327876mp0301_2.

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Carmen Elena Coca. "Curriculum interdependence in the preparation of the engineering and economic and financial technique of the future commercial marine officers." Technium Social Sciences Journal 6 (April 15, 2020): 180–87. http://dx.doi.org/10.47577/tssj.v6i1.365.

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The education and training of the future commercial naval officers has reached a high quality international level, recognized both by the beneficiaries and by the bodies of evaluation of the activity of the institutions of higher education of the navy. The training of the commercial naval officers involves knowledge and skills in the technical field and in other complementary fields. The current challenges related to safety, security and economic efficiency lead to the consolidation of the level of education and training of commercial naval officers, through the interdependence and diversification of the curricula in the world economy of shipping, finance of the maritime industry and the specialized labour market.

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Soloviev, I. A., A. P. Utochkin, and P. P. Lukianiuk. "CONTRIBUTION GENERAL-MAJOR OF MEDICAL SERVICE M. A. LUSCHITSKY IN THE DEVELOPMENT OF NAVAL SURGERY (TO THE 100 ANNIVERSARY FROM THE BIRTHDAY)." Marine Medicine 5, no. 4 (November 29, 2019): 104–8. http://dx.doi.org/10.22328/2413-5747-2019-5-4-104-108.

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The article is devoted to the outstanding naval surgeon professor Mikhail Luschitsky, head of the department of naval and hospital surgery of the Military medical Academy. S. M. Kirov (1973–1986 biennium), general-major of the medical service. Mikhail Alekseevich graduated from the Naval medical Academy in 1941 and was sent to the Pacific fleet. For participation in the war with militaristic Japan will be awarded the order of the red Star. From 1951 to 1958 he served in the Kronstadt naval hospital as head of the surgical Department. Kronstadska school of naval surgeons laid the future surgeon general of the navy and head of the department of naval and hospital surgery professor, the general-major of medical service M. A. Luschitsky to go the fundamental basis of his future scientific and pedagogical activity. In the period from 1958 to 1961, he, being an adjunct of the department of naval surgery, prepared his thesis «Surgical treatment of frostbite 3–4 degrees, combined with radiation sickness», for the scientific value of which the Scientific Council of the Academy awarded him the degree of doctor of medical Sciences. From 1973 to 1986 Mikhail Alekseevich was the head of the department of naval and hospital surgery, where his talent of a great teacher, surgeon and organizer was fully manifested. He created his own unique school of naval surgeons. Mikhail Alekseevich is the author of 146 scientific works, he was twice elected Chairman of the Surgical society of Pirogov. Under his leadership, 7 doctoral and 18 master’s theses were prepared and defended. He retired in 1986. Mikhail Alekseevich died on March 10, 1999.

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Drollinger, Sabrina, Steve Linnville, Jeff Phillips, Dallas Snider, and Lee W. Sciarini. "Efficacy of Dry Electroencephalography and Cognitive Assessment in Identifying Normobaric Hypoxia in Designated Aviators." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 63, no. 1 (November 2019): 59–62. http://dx.doi.org/10.1177/1071181319631218.

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The purpose of this study was to investigate the use of EEG and cognitive functioning assessments to identify hypoxia in naval aviators. Naval aviators were brought slowly to a 6,096 m exposure to induce normobaric hypoxia while completing a cognitive assessment and a simulated flight task. There were significant reductions in cognitive performance at 6,096 m when compared to sea level. There were no significant changes in EEG-recorded brainwave activity during the 6,096 m exposure compared to sea level. There were also no significant decrements in flight performance at 6,096 m. Additional research is needed to better understand the impact of hypoxia on brainwave activity and pilot performance.

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Petreev, Igor V., Sergey A. Zun, and Igor A. Shevchuk. "Naval hygienist Zun Andrey Vadimovich: professionalism, erudition and fidelity to traditions." Bulletin of the Russian Military Medical Academy 23, no. 2 (July 12, 2021): 283–86. http://dx.doi.org/10.17816/brmma59036.

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We are considering the main aspects of the professional activity of an outstanding naval hygienist, alumnus of the Faculty of residency training for the Naval Service of Military Medical Academy named after S.M. Kirov (1964), Candidate of Medical Sciences (1971), Higher Senior Officer (graduate education hygiene) of the Scientific Research Center of the Academy (1975), Associate Professor at the Department of Naval and Radiation Hygiene (2004), retired Colonel of the Medical Service Zun Andrey Vadimovich. Having gained a unique experience in medical practice as the Head of the medical service of a diesel-electric submarine of the Baltic Fleet and having completed his postgraduate studies at the Department of Naval and Radiation Hygiene (Military Medical Academy named after S.M. Kirov), Andrey Vadimovich successfully defended his thesis for the degree of Candidate of Medical Sciences (graduate education hygiene) on the topic "Hygienic characteristics of the working conditions of specialists working on the fleet shore installations of the Naval Service, working with components of rocket fuel". After this more than 45 years of his professional activity were devoted specifically to the preventive medicine trend hygiene. The main professional achievements of Andrey Vadimovich undoubtedly include the study of the physiological effect of negative air ions in closed premises with conditions of oxygen deficiency, the study of the workplace hygiene of coastal missile systems specialists, as well as the hygienic characteristics of military clothing. Andrey Vadimovich has been also teaching such academic disciplines as naval and radiation hygiene, as well as medical ecology for all categories of Academy students. He is a veteran of the Armed Forces and Military Medical Academy named after S.M. Kirov. Andrey Vadimovich considers the success of his son and grandson as the main achievement of his life. His son Sergey followed the path taken by his father and graduated from the Faculty of Residency Training for the Naval Service of Military Medical Academy named after S.M. Kirov, also he deployed downrange on submarines, and then became an Associate Professor of the Psychiatry Department at the Academy. The grandson of Andrey Vadimovich, Pavel, graduated from the University of Information Technologies, Mechanics and Optics. After he completed his postgraduate studies at the same University, his area of expertise is computer modeling of the circulatory system.

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McCaughey, B. G., J. Garrick, L. C. Carey, and J. B. Kelley. "Naval Support Activity Hospital, Danang, Casualty Blood Utilization: January to June 1968." Military Medicine 153, no. 4 (April 1, 1988): 181–85. http://dx.doi.org/10.1093/milmed/153.4.181.

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Marchiori, Edson, Miriam Menna Barreto, and Gláucia Zanetti. "Sandblasting in the Naval Industry: Another Life-Threatening Activity Related to Silicosis." Archivos de Bronconeumología (English Edition) 51, no. 2 (February 2015): 101–2. http://dx.doi.org/10.1016/j.arbr.2014.11.006.

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Pytko, Barbara, and Roman Watras. "Polska przedsiębiorczość w gospodarce morskiej problemy i szanse na sukces." Przedsiębiorczość - Edukacja 2 (January 1, 2006): 115–21. http://dx.doi.org/10.24917/20833296.2.11.

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The goal of this text is to focus on the situation of companies in Polish naval industry and to define the condition of their activity, entrepreneurship, and their attitudes toward innovations. This discussion is a search for the answer to the question: Is it possible to see any signs of entrepreneurship in the organizations and the activities in this sector? Authors emphasize the naval companies mainly organize the sea shipping, and their business is usually complex, it needs a lot of capital, and there is fierce global competition. With the transformation of political system and Polish economical reform in this industry, it was not propitious time to growth for these companies. Both the fleet, and the shipbuilding, and their bases started to deteriorate. According to the authors, naval industry was at the disadvantage because public opinion assumed that the sea was less important to the national economy, so the fleet and shipbuilding were not economically justifiable and naval industry was the burden that slowed down the development of national economy. Fortunately this time is over, because the good trends appeared toward a growth in the naval trade, and because of boom in the sea transport, in shipbuilding and in ship maintenance.

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Soshkin, P. A. "COMPARATIVE ANALYSIS OF PERSONAL FEATURES IN NAVAL SPECIALISTS WITH SIGNS OF PROFESSIONAL BURN OUT." Marine Medicine 7, no. 1 (April 6, 2021): 48–53. http://dx.doi.org/10.22328/2413-5747-2021-7-1-48-53.

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Introduction. The formation of professional burnout syndrome is largely determined by stable personality characteristics, which determine the plasticity of responding to a situation and its adaptation, which predetermines the relevance of their study.Purpose: to assess personal characteristics based on the application of the SMIL methodology in naval specialists who have (or do not have) signs of professional burnout.Materials and methods. The study involved 250 naval specialists aged 25 to 45, divided into 2 groups — with the absence (group 1 (n=91 people)) and the presence (group 2 (n=159 people)) signs of professional burnout, in which personality traits.Results and its discussion. It was found that naval specialists with signs of professional burnout, in comparison with those who do not have it, have significantly higher indicators on the scales of correction, activity, masculinity, as well as significantly lower indicators on the scales of rigidity and anxiety; however, these indicators were within the average normative values and were of a relative nature.Conclusion. The obtained data can be used in applied terms as one of the criterioIntroduction. The formation of professional burnout syndrome is largely determined by stable personality characteristics, which determine the plasticity of responding to a situation and its adaptation, which predetermines the relevance of their study.Purpose: to assess personal characteristics based on the application of the SMIL methodology in naval specialists who have (or do not have) signs of professional burnout.Materials and methods. The study involved 250 naval specialists aged 25 to 45, divided into 2 groups — with the absence (group 1 (n=91 people)) and the presence (group 2 (n=159 people)) signs of professional burnout, in which personality traits.Results and its discussion. It was found that naval specialists with signs of professional burnout, in comparison with those who do not have it, have significantly higher indicators on the scales of correction, activity, masculinity, as well as significantly lower indicators on the scales of rigidity and anxiety; however, these indicators were within the average normative values and were of a relative nature.Conclusion. The obtained data can be used in applied terms as one of the criterion guidelines at the stage of selection of naval specialists, since personality traits, being stable psychological formations, can be a kind of damper preventing the formation of unfavorable functional states in the examined persons.n guidelines at the stage of selection of naval specialists, since personality traits, being stable psychological formations, can be a kind of damper preventing the formation of unfavorable functional states in the examined persons.

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Rodríguez-Grimón, René, Nestor Hernando Campos, and Ítalo Braga Castro. "Effect of Maritime Traffic on Water Quality Parameters in Santa Marta, Colombia." Journal of Marine Science and Engineering 9, no. 5 (April 28, 2021): 474. http://dx.doi.org/10.3390/jmse9050474.

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Since 2013, there has been an increase (>23%) in naval traffic using maritime routes and ports on the coastal fringe of Santa Marta, Colombia. Of major concern, and described by several studies, is the relationship between maritime traffic and coastal contamination. This study proposed a maritime traffic indicator considering the simultaneous effects of several relevant measurements of water quality parameters to estimate the impact of naval activity. The approach involved developing a model including the number of vessels, hull length, and permanence time in berths. In addition, water quality variables, considering climatic seasons, were used to verify association with maritime traffic and touristic activities. The high concentrations of total coliforms (TC) and dissolved/dispersed petroleum hydrocarbons in chrysene equivalents (DDPH) reported by the International Marina of Santa Marta (SM) were affected by the local anthropic activities, including tourism, naval traffic, and urban wastewater discharges. Moreover, our results suggest the occurrence of multiple chemical impacts within Tayrona National Natural Park (PNNT) affecting conservation goals. The estimation of the maritime traffic indicator proposed in this study may be an easy and more complete tool for future studies evaluating the impact of naval activities on environmental quality.

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Tomczak, Andrzej, Ewa Jówko, and Paweł Różański. "Survival Training Effects on Oxidative Stress and Muscle Damage Biomarkers of Naval Cadets." Aerospace Medicine and Human Performance 91, no. 9 (September 1, 2020): 720–24. http://dx.doi.org/10.3357/amhp.5536.2020.

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INTRODUCTION: It is important for military commanders to know the extent of fatigue experienced by soldiers undergoing a long-term military training. This knowledge can enable them to determine the level of physical capabilities of soldiers. The present study aimed to evaluate changes in the level of chosen biochemical parameters in blood during the survival training of Polish Naval Academy cadets. METHODS: Participating voluntarily in the research study were 14 cadets. All subjects were men, ages 23.1 2.0 yr. During the 36-h survival training, the subjects were deprived of sleep. The following biochemical parameters were assessed in venous blood collected from the cadets: creatine kinase (CK) activity, concentration of lipid hydroperoxides (LOOHs), superoxide dismutase activity (SOD), and glutathione peroxidase activity (GPx). RESULTS: After 36 h of training a significant increase was observed in CK (from 183.1 up to 530.2 U L1), LOOHs (from 1.72 up to 3.74 mol L1), and GPx (from 27.4 up to 36.4 U gHb1). After 12 h of rest, the level of LOOHs returned to the initial level, GPx activity did not change significantly, and CK activity was significantly higher than those at baseline (422.3 U L1). DISCUSSION: The 36-h survival training increased oxidative stress, which contributed to the damage to muscle cells in the group of cadets of the Polish Naval Academy. The intensity of postexercise changes in the level of oxidative damage indicators is dependent on the initial level of enzymatic antioxidant defense. The 12-h recovery proved to be too short to regenerate the damaged muscle tissue. Tomczak A, Jówko E, Różański P. Survival training effects on oxidative stress and muscle damage biomarkers of naval cadets. Aerosp Med Hum Perform. 2020; 91(9):720724.

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Epstein, Steven A., and John Haywood. "Dark Age Naval Power: A Reassessment of Frankish and Anglo-Saxon Seafaring Activity." Journal of Interdisciplinary History 23, no. 2 (1992): 316. http://dx.doi.org/10.2307/205283.

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Classen, Albrecht, and John Haywood. "Dark Age Naval Power. A Reassessment of Frankish and Anglo-Saxon Seafaring Activity." German Quarterly 65, no. 3/4 (1992): 443. http://dx.doi.org/10.2307/407602.

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McCaughey, Brian G., James Garrick, Larry C. Carey, and Jan B. Kelley. "Naval Support Activity Hospital Da Nang Combat Casualty Deaths January to June 1968." Military Medicine 152, no. 6 (June 1, 1987): 284–89. http://dx.doi.org/10.1093/milmed/152.6.284.

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Skaridov, Alexander S. "Naval activity in the foreign EEZ—the role of terminology in law regime." Marine Policy 29, no. 2 (March 2005): 153–55. http://dx.doi.org/10.1016/j.marpol.2004.08.009.

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Epstein, Danny, M. Furman, A. Borohovitz, Z. Iversen, S. Shapira, Y. Yanir, and D. Ofir. "Ambulatory physical activity during the initial training phase in a Naval Commando Unit." Journal of the Royal Army Medical Corps 162, no. 4 (October 13, 2015): 291–96. http://dx.doi.org/10.1136/jramc-2015-000430.

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Ray, Himanshu Prabha. "Sailing Ships, Naval Expeditions and ‘Project Mausam’." India Quarterly: A Journal of International Affairs 76, no. 3 (August 5, 2020): 411–24. http://dx.doi.org/10.1177/0974928420936133.

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In recent years, sailing ships of the Indian Navy have been increasingly involved in diplomatic missions and cultural voyages across the world, in addition to their primary purpose of providing practical training in navigation techniques and seamanship. These three-masted barques built at the Goa Shipyard and used by the Indian Navy are very different from wooden sailing vessels that traversed the Indian Ocean in the premodern period prior to the development of steamship navigation in the nineteenth century. Nonetheless, these distinctions have often been blurred as these modern naval ships have been utilised to recreate historical ‘expeditions’ such as the much-celebrated Chola invasion of Srivijaya in the Indonesian archipelago. Nor is India the only country to be involved in promoting this ‘popular history’ for contemporary geopolitical interests, as is evident from China’s efforts to rebuild ships used in the Voyages of Admiral Zheng He across the Indian Ocean. What gets short shrift in the process is investment in research in underwater archaeology and the discovery and preservation of shipwreck sites. This article highlights the urgent need for interdisciplinary research in premodern shipping and seafaring activity beyond the rhetoric of valorising national heroes.

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Gudkov, A. B., F. A. Shcherbina, O. N. Popov, and V. P. Chashchin. "Features of functional reserves of the cardiovascular system in cadets of the maritime university in conditions of long-term navigation." Marine Medicine 7, no. 3 (October 14, 2021): 14–19. http://dx.doi.org/10.22328/2413-5747-2021-7-3-14-19.

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Aim: to reveal the features of cardiovascular system functional reserves in naval cadets under the conditions of a long voyage.Materials and methods. 70 cadets undergoing training and sailing practice for 165 days on Sedov training and sailing ship were studied. Cardiovascular system reserves were determined once a month indices before taking over the watch. The results were elaborated using the SPSS program, v 17.0 (IBM).Results and their discussion. On the first, second, and third months of the voyage, the naval cadets retained the functional reserves of the cardiovascular system, which is indicated by the typical normotonic reaction in its activity in response to physical activity.On the fourth and fifth, the cadets showed signs of a decrease in the reserves of the cardiovascular system, which is manifested by a slower recovery after standard physical activity, a decrease in the inotropic reserve index and an increase in the chronotropic reserve index.

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Menefee, Samuel Pyeatt. "Foreign Naval Intervention in Cases of Piracy: Problems and Strategies." International Journal of Marine and Coastal Law 14, no. 3 (1999): 353–70. http://dx.doi.org/10.1163/157180899x00183.

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AbstractThis article considers the problem of contemporary piracy in the 1990s and the use of foreign naval forces against pirates on the high seas and in coastal waters. An analysis of legal considerations suggest that the LOS Convention on the Law of the Sea makes such intervention less likely; this study also highlights potential factors militating for and against such interference. The possibilities of modifying or amending the LOS Convention are discussed, as well as the employment of declarations or statements, or the use of other international strategies to allow foreign naval activity. The article emphasises the key role of coastal and flag states in any such scenario.

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Simonis, Anne E., Robert L. Brownell, Bruce J. Thayre, Jennifer S. Trickey, Erin M. Oleson, Roderick Huntington, and Simone Baumann-Pickering. "Co-occurrence of beaked whale strandings and naval sonar in the Mariana Islands, Western Pacific." Proceedings of the Royal Society B: Biological Sciences 287, no. 1921 (February 19, 2020): 20200070. http://dx.doi.org/10.1098/rspb.2020.0070.

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Mid-frequency active sonar (MFAS), used for antisubmarine warfare (ASW), has been associated with multiple beaked whale (BW) mass stranding events. Multinational naval ASW exercises have used MFAS offshore of the Mariana Archipelago semi-annually since 2006. We report BW and MFAS acoustic activity near the islands of Saipan and Tinian from March 2010 to November 2014. Signals from Cuvier's ( Ziphius cavirostris) and Blainville's beaked whales ( Mesoplodon densirostris ), and a third unidentified BW species, were detected throughout the recording period. Both recorders documented MFAS on 21 August 2011 before two Cuvier's beaked whales stranded on 22–23 August 2011. We compared the history of known naval operations and BW strandings from the Mariana Archipelago to consider potential threats to BW populations. Eight BW stranding events between June 2006 and January 2019 each included one to three animals. Half of these strandings occurred during or within 6 days after naval activities, and this co-occurrence is highly significant. We highlight strandings of individual BWs can be associated with ASW, and emphasize the value of ongoing passive acoustic monitoring, especially for beaked whales that are difficult to visually detect at sea. We strongly recommend more visual monitoring efforts, at sea and along coastlines, for stranded cetaceans before, during and after naval exercises.

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Fanning, Steven, and John Haywood. "Dark Age Naval Power: A Re-assessment of Frankish and Anglo-Saxon Seafaring Activity." American Historical Review 97, no. 5 (December 1992): 1495. http://dx.doi.org/10.2307/2165963.

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Clark, Michael. "The Date of IG II21604." Annual of the British School at Athens 85 (November 1990): 47–67. http://dx.doi.org/10.1017/s0068245400015550.

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The generally accepted date (377/6) of the earliest Athenian naval inventory of the fourth century B.C., IG II21604, rests upon an unsafe restoration and several improbable assumptions. The fact that a Secretary 377/6 is named as trierarch on 1604 casts severe doubt on the accepted date. Indeed, the small number of allotted triremes on 1604 strongly suggests a date before the outbreak of war in 378. The record on 1604 of an Athenian trireme borrowed by the Chian Antimachos, which is easily associated with the negotiations at the very foundation of the Athenian Confederacy, seems to date 1604 to 379/8. Thus it is unlikely that the new series of inventories began only in 378/7 as a consequence of that foundation; the absence from the Navy Lists of outstanding debts datable before 378/7 indicates perhaps a successful collection of naval debts in that year. The existence of a substantial number of newly constructed triremes on 1604 discredits the view that the Peace of 387/6 banned all naval activity in Greece. New readings on Tod 117 demonstrate that Athens continued to deploy ships during the Peace. Its terms, which were not particularly harsh on Athens, more closely resembled those rejected in 392, which did allow trireme-building, than those of 371 and later. Anyhow these laterKoinai Eirenai, like the Peace of Antalcidas, prohibited, not all military activity, but only warfare among the signatory states.

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Lammers, Marc O., Marian Howe, Eden Zang, Megan McElligott, Amy Engelhaupt, and Lisa Munger. "Acoustic monitoring of coastal dolphins and their response to naval mine neutralization exercises." Royal Society Open Science 4, no. 12 (December 2017): 170558. http://dx.doi.org/10.1098/rsos.170558.

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To investigate the potential impacts of naval mine neutralization exercises (MINEX) on odontocete cetaceans, a long-term passive acoustic monitoring study was conducted at a US Navy training range near Virginia Beach, USA. Bottom-moored acoustic recorders were deployed in 2012–2016 near the epicentre of MINEX training activity and were refurbished every 2–4 months. Recordings were analysed for the daily presence/absence of dolphins, and dolphin acoustic activity was quantified in detail for the hours and days before and after 31 MINEX training events. Dolphins occurred in the area year-round, but there was clear seasonal variability, with lower presence during winter months. Dolphins exhibited a behavioural response to underwater detonations. Dolphin acoustic activity near the training location was lower during the hours and days following detonations, suggesting that animals left the area and/or reduced their signalling. Concurrent acoustic monitoring farther away from the training area suggested that the radius of response was between 3 and 6 km. A generalized additive model indicated that the predictors that explained the greatest amount of deviance in the data were the day relative to the training event, the hour of the day and circumstances specific to each training event.

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Flynn, Matthew. "The Unity of the Operational Art: Napoleon and Naval Integration." Journal of Advanced Military Studies 11, no. 2 (December 16, 2020): 11–34. http://dx.doi.org/10.21140/mcuj.20201102001.

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On 29 March 2019, a ceremony at Marine Corps University (MCU) marked the opening and full operational capability of the Brute Krulak Center for Innovation and Creativity. The conception, birth, assignment of permanent staff, funding, and now-robust schedule of activities of the Krulak Center came after some years of gestation, providing a case study of organizational change. The Marine Corps has long valued innovation and creativity, but the impetus to establish such a center had its origins in the decennial accreditation process of MCU by the Southern Association of Colleges and Schools Commission on Colleges (SACSCOC). This article looks at the early conceptualization of a Center for Applied Creativity (CAC), the organizational starts and stalls, the thoughts about goals and organization that came together for the Brute Krulak Center for Innovation and Creativity, and finally the initial years of its activity.

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Uddin, Md Borhan, and Md Anisur Rahman. "Stress Fractures in Female Cadets in Bangladesh Naval Academy during Training." Journal of Armed Forces Medical College, Bangladesh 12, no. 1 (January 24, 2016): 48–52. http://dx.doi.org/10.3329/jafmc.v12i1.39967.

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Introduction: Stress fractures occur due to repetitive cumulative micro trauma on the bone over a period of time. These are common overuse injuries in military cadets and sports personnel during training. Stress fracture in female cadets is a rising cause of concern for its high prevalence. It increases morbidity, long term absence from training and significant economic loss. Objective: To find out the prevalence, time of occurrence and sites involved among the fresh female cadets during their basic training. Materials and Methods: A descriptive cross-sectional study was conducted during January 2011 to April 2017 in female cadets undergoing basic training at Bangladesh Naval Academy, Chittagong. A detailed history and physical assessment was performed of those presenting with pain, swelling or limping. Radiographic imagings were done to evaluate the symptoms. All cases of stress fractures were finally diagnosed on the basis of findings and were appropriately managed and followed up every two weeks till the time of union. Results: Eighteen cases out of 82 had clinical and radiological signs of stress fractures with an overall prevalence of 21.95%. Average age was 19 years (range 18-20). Highest prevalence was around 12 weeks of training. Common sites were tibia (40.90%), pelvis (40.90%) and fibula (9.09%). There was one metatarsal and one femoral neck fracture. All the fractures were treated conservatively and were healed in an average period of 7 weeks. All cadets returned to their full activity in an average period of ten weeks. Conclusion: Prevalence among the female naval cadets is high and probably underrated in this setting. For prevention, modifiable causes and risks factors must be evaluated and identified. A protractive approach for early detection and immediate management is indispensible to reduce the morbidity and early return to full activity. Journal of Armed Forces Medical College Bangladesh Vol.12(1) 2016: 48-52

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Gabbert, Janice J. "Piracy in the Early Hellenistic Period: a Career Open to Talents." Greece and Rome 33, no. 2 (October 1986): 156–63. http://dx.doi.org/10.1017/s001738350003031x.

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Pirates were frequently employed by the Diadochoi and the Epigonoi of Alexander as an auxiliary military or naval force, and some examples are given below. Unfortunately, the surviving evidence does not allow us to do more than make the general statement. The evidence for piratical activity is largely in the form of personal anecdotes, and the evidence for the nature of Hellenistic military and naval establishments is nothing more than a record of a few persons and/or positions. The authors of our scant literary sources, especially those who wrote many generations after the events which they describe, were not attempting to analyse the role of pirates for posterity, thus they often use the word ‘pirate’ with a notable lack of precision, if they use it at all. Nevertheless, a review of the existing evidence suggests a rather remarkable degree of social and occupational mobility in the third century B.C.

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Bonanno, Daniel R., S. E. Munteanu, G. S. Murley, K. B. Landorf, and H. B. Menz. "Risk factors for lower limb injuries during initial naval training: a prospective study." Journal of the Royal Army Medical Corps 164, no. 5 (April 6, 2018): 347–51. http://dx.doi.org/10.1136/jramc-2018-000919.

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IntroductionThis study aimed to identify risk factors associated with the development of common lower limb injuries during initial defence training in naval recruits who were enrolled in a randomised trial.MethodsThree-hundred and six naval recruits were randomly allocated flat insoles (n=153) or foot orthoses (n=153) while undertaking 11 weeks of initial training. Participant characteristics (including anthropometrics, general health, physical activity, fitness and foot characteristics) were collected at the baseline assessment and injuries were documented prospectively. Injury was defined as the combined incidence of participants with medial tibial stress syndrome, patellofemoral pain, Achilles tendinopathy and plantar fasciitis/plantar heel pain throughout the 11 weeks of training. A discriminant function analysis was used to explore the ability of baseline measures to predict injury.ResultsOverall, 67 (21.9%) participants developed an injury. Discriminant function analysis revealed that participants who sustained an injury were slightly younger (mean 21.4±SD 4.1 vs 22.5±5.0 years) and were less likely to be allocated to the foot orthosis group (40% vs 53%) compared with those who remained uninjured. The accuracy of these baseline variables to predict injury was moderate (78.1%).ConclusionsLower limb injury was not accurately predicted from health questionnaires, fitness results and clinical assessments in naval recruits undertaking initial defence training. However, although not reaching statistical significance, the use of foot orthoses may be protective against common lower limb injuries.Trial registration numberACTRN12615000024549; Post-results.

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JORAEV, MEDET TECHMURATOVICH. "SCIENTIFIC RESEARCH OF THE RUSSIAN MARITIME UNION." CASPIAN REGION: Politics, Economics, Culture 66, no. 1 (2021): 38–42. http://dx.doi.org/10.21672/1818-510x-2021-66-1-038-042.

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The article is devoted to the aspects of scientific activity of the Russian Maritime Union. This public organization in the early twentieth century set itself the task of reviving the Russian imperial navy after the defeat in the russo - japanese war of 1904-1905. Meetings of a public organization where scientific problems were discussed are considered. Special attention is paid to the existing rules for publishing a collection of scientific papers by the leaders of the Russian Maritime Union. Information is given on issues related to the colonization of remote areas of Siberia and the Far East. The reasons for the lag of Russian commercial shipping from Western European countries are investigated. The prerequisites for the successful development of German commercial shipbuilding and shipping in the early twentieth century are analyzed. The relationship between the problems of development of Siberian rivers and the unsatisfactory economic condition of remote Russian territories is traced. The history of domestic public organizations and naval affairs in the early twentieth century is studied. In addition, the organization of the Russian maritime union for the promotion of naval knowledge is being considered. The public organization subscribed specialized foreign and domestic literature and created libraries on these issues, open to the public. Then the Russian maritime union attracted such technical innovations as cinematog- raphy and filmstrips to promote naval knowledge among the Russian population.

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KORABLEV, Yuriy Yurevich, Igor Yurevich PUGACHEV, Esedulla Mallaalievich OSMANOV, and Sergey Yurevich DUTOV. "INTEGRATION OF ACTIVITY CLUSTERS OF THE NAVY SPECIALISTS FOR THE UNIFICATION OF THEIR PHYSICAL TRAINING PROGRAMS." Tambov University Review. Series: Humanities, no. 176 (2018): 108–15. http://dx.doi.org/10.20310/1810-0201-2018-23-176-108-115.

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We analyze the content of components of The Navy of the Russian Federation as a type of the state armed forces. The methodological basis of this analysis was the interpretation of the concept of “content” in the context of the fact that it represents a set of elements that form the system of their interactions and the perspective changes caused by them. On the basis of the study of specialties of the Navy we produce a generalized integration of homogeneous types of professional activities of soldiers, based on the analysis of more than 300 heterogeneous names. It is specified that the Navy of the Russian Federation at the present stage of evolutionary development is a set of five relatively interrelated and mutually conditioned units: underwater forces and surface ships; flight-lifting structure of naval aviation; marines, combat swimmers, reconnaissance, sabotage and other special units; coastal anti-aircraft missile and artillery units; support services, radio engineering, communications, rear area, engineers and equipment, including naval aviation. The above-mentioned integration of the common structure of combat operations of specialists for the purpose is the basis for the development and availability of five appropriate utilized programs for physical training, since the physical readiness of military personnel is an integral part of the system of combat improvement of the fleet. Beyond the range of specialties we reveal the feasibility of separate sixth program of physical training for units of the Navy of the Russian Federation, involving, if necessary, to implement the peacekeeping functions in the areas of likely military action. The above approach of justification of the required optimal number of physical training programs on the management scale of fleet forces of the Russian Federation is for the first time applied in the theory and technique of physical training of the military personnel.

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Groopman, Evan E., David G. Willingham, Alex P. Meshik, and Olga V. Pravdivtseva. "Discovery of fissionogenic Cs and Ba capture five years after Oklo reactor shutdown." Proceedings of the National Academy of Sciences 115, no. 35 (August 13, 2018): 8676–81. http://dx.doi.org/10.1073/pnas.1807267115.

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Understanding the release and sequestration of specific radioactive signatures into the environment is of extreme importance for long-term nuclear waste storage and reactor accident mitigation. Recent accidents at the Fukushima and Chernobyl nuclear reactors released radioactive 137Cs and 134Cs into the environment, the former of which is still live today. We have studied the migration of fission products in the Oklo natural nuclear reactor using an isotope imaging capability, the NAval Ultra-Trace Isotope Laboratory’s Universal Spectrometer (NAUTILUS) at the US Naval Research Laboratory. In Oklo reactor zone (RZ) 13, we have identified the most depleted natural U of any known material with a 235U/238U ratio of 0.3655 ± 0.0007% (2σ). This sample contains the most extreme natural burnup in 149Sm, 151Eu, 155Gd, and 157Gd, which demonstrates that it was sourced from the most active Oklo reactor region. We have discovered that fissionogenic Cs and Ba were captured by Ru metal/sulfide aggregates shortly following reactor shutdown. Isochrons from the Ru aggregates place their closure time at 4.98 ± 0.56 y after the end of criticality. Most fissionogenic 135Ba and 137Ba in the Ru migrated and was incorporated as Cs over this period. Excesses in 134Ba in the Ru point to the burnup of 133Cs. Cesium and Ba were retained in the Ru despite local volcanic activity since the reactor shutdown and the high level of activity during reactor operation.

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Попроцький, Ігор, and Вячеслав Сапіга. "MODERNIZATION OF TRAINING OF NAVAL SPECIALISTS AT HIGHER EDUCATIONAL INSTITUTIONS." Науковий вісник Інституту професійно-технічної освіти НАПН України. Професійна педагогіка, no. 18 (June 24, 2019): 169–74. http://dx.doi.org/10.32835/2223-5752.2019.18.169-174.

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The article is devoted to the search for conceptual approaches to solving the problem of constructing a new model of training officer personnel for the fleet, adapted to the standards and principles of NATO. This article, based on the consideration of the training models of the naval specialist, where the external factor is the educational environment, which forms the request for content, quality and methodology of military education, determines the main factors that are the basis of a perspective model of training a military seaman. Using the method of comparing the study of the educational environment of the existing and prospective model of training a naval specialist testifies that consideration of this process is necessary from the standpoint of the system approach, considering that the future officer will have to act in the conditions of wars (military conflicts) of the fourth generation where the line between the troops and people erases intentionally, namely: the environment changes itself under the influence of social, political, cultural and historical factors. The main directions of modernization of educational environment are: generalization, systematization and comprehension of the experience of formation and development of the system of military education of the former member states of the Organization of Warsaw Pact; the study of the process of the transformation of theoretical and methodological approaches to create a modern system of military education, based on the best world and domestic educational traditions; the change of the mentality of all the subjects of the educational activity, rethinking ...

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Kuznietsov, S. "RENEWAL OF LEGAL SUPPORT OF NAVAL ACTIVITY AS A PRIORITY OF THE STATE MARITIME POLICY OF UKRAINE." Law and public administration, no. 2 (2020): 81–86. http://dx.doi.org/10.32840/pdu.2020.2.12.

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Gudkov, A. B., O. N. Popova, V. D. Ivanov, and A. A. Nebuchennykh. "FEATURES OF MYOCARDIUM ELECTROBIOLOGICAL ACTIVITY IN RECRUITS OF NAVAL FLEET TRAINING CENTER IN CONDITIONS OF EUROPEAN NORTH." Marine Medicine 2, no. 1 (January 1, 2016): 50–56. http://dx.doi.org/10.22328/2413-5747-2016-2-1-50-56.

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Guzovic, Zvonimir. "Scientific activity of Prof. Naim Afgan at Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb." Thermal Science 24, no. 6 Part A (2020): 3447–48. http://dx.doi.org/10.2298/tsci200831266g.

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Pudiastuti, Elisabeth Tanti. "MENTAL WORKLOAD ANALYSIS OF NAVAL CADET ACADEMY USING SUBJECTIVE WORKLOAD ASSESSMENT TECHNIQUE (SWAT) METHODS." JOURNAL ASRO 11, no. 2 (April 21, 2020): 236. http://dx.doi.org/10.37875/asro.v11i2.287.

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There are plentiful activities conducted by the Cadets in order to hold educational process at the NavalAcademy. These activities are particularly vulnerable to physical and psychological friction, especiallyin routine and nurturing activities, where activities in this phase are thought to cause the Cadets toexperience excessive mental workloads which may result in the Cadets being unable to continue theireducation. Therefore, this research would identify one of the factors that were suspected to be thecause of the problem which was psychological factor or mental workload on the Academy of Navalusing Subjective Workload Asessesment Technique (SWAT) method. SWAT method was chosenbecause it was easier to apply and had some advantages in terms of results validity and accuracy, sothat the performance of Cadets expected by Institution were: Tanggap, Tanggon and Trengginas. Theresults of this study indicated that there was a high mental workload for some sub activities at somelevel. The highest mental workload in level I is 69,0 (RPS activity), in level II is 83,4 (senior juniordevelopment), in level III is 77,6 (senior junior development). Besides this research also showed thatthe mental workload between the four levels of Level I, II, III and IV had a significant difference inmental workload in carrying out every activity at the Academy.Keywords: Subjective Workload Assessment Technique (SWAT), Mental Workload, Cadets.

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Altosole, M., and Massimo Figari. "Effective simple methods for numerical modelling of marine engines in ship propulsion control systems design." Journal of Naval Architecture and Marine Engineering 8, no. 2 (December 30, 2011): 129–47. http://dx.doi.org/10.3329/jname.v8i2.7366.

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In the last year, the Department of Naval Architecture and Marine Engineering of Genoa University (now Department of Naval Architecture, Marine Technology and Electrical Engineering) collaborated to the design of the propulsion automation of two different naval vessels; within these projects the authors developed different ship propulsion simulators used to design and test the propulsion control schemes. In these time-domain simulators, each propulsion component is represented by a specific mathematical model, mainly based on algebraic and differential equations. One of the key aspects of the propulsion simulation is the engine dynamics. This problem in principle can be dealt with models based on thermodynamic principles, which are able to represent in detail the behaviour of many variables of interest (engine power and speed, air and gas pressures, temperatures, stresses, etc.). However, thermodynamic models are often characterized by a long computation-time and moreover their development usually requires the knowledge of specific engine information not always available. It is generally preferable to adopt simpler simulation models, for the development of which, very few kinds of information are necessary. In fact, for the rapid prototyping of control schemes, it is generally more important to model the whole plant (in a relatively coarse way) rather than the detailed model of some components. This paper deals with simple mathematical methods, able to represent the engine power or torque only, but they can be suitably applied to many types of marine engines in a straightforward way. The proposed simulation approaches derived from the authors’ experience, gained during their activity in the marine simulation field, and they are particularly suitable for a fast prototyping of the marine propulsion control systems. The validation process of these particular models, regarding a Diesel engine, a marine gas turbine and an electric motor, is illustrated based on the sea trials data and engine manufacturers’ data. Keywords: Dynamic simulation; marine engines performance; gas turbine; propulsion control. doi: http://dx.doi.org/10.3329/jname.v8i2.7366 Journal of Naval Architecture and Marine Engineering 8(2011) 129-147

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Journal articles on the topic 'Naval activity'

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