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Sample records for baldwin ship channel

  1. Tier I ecological evaluation for phase III channel improvements to the John. F. Baldwin ship channel

    Energy Technology Data Exchange (ETDEWEB)

    Bienert, R.W.; Shreffler, D.K.; Word, J.Q.; Kohn, N.P. [Battelle/Marine Sciences Lab., Sequim, WA (United States)

    1994-05-01

    To assist the US Army Corps of Engineers (USACE) in determing whether the material from proposed dredging of the John F. Baldwin Ship Channel (JFBSC) is suitable for unrestricted, unconfined open-ocean disposal, Battelle/Marine Sciences Laboratory (MSL) prepared this report. Based on these findings, sediments that would be removed during Phase III improvements to the JFBSC fail to meet the three suitability criteria for open-ocean disposal. Firstly, fine-grained sediments comprise a significant fraction of the bottom material in some areas of the channel, and this material is not exposed to high current or wave energy. Dredged material from the JFBSC is not being proposed for beach nourishment; therefore the second criterion is not met. JFBSC sediments do not meet the third criterion because, although they may be substantially similar to substrates at several of the proposed disposal sites, they are from an area that historically has experienced loading of contaminants, which toxicology studies have shown have the potential to result in acute toxicity or significant bioaccumulation.

  2. Chemical evaluations of John F. Baldwin Ship Channel sediment phase 2

    Energy Technology Data Exchange (ETDEWEB)

    Kohn, N P; Lefkovitz, L F; Barton, K O; Word, J Q

    1991-05-01

    In August of 1990, the battelle/Marine Sciences Laboratory (MSL) conducted a program of sampling, geologic characterization, and chemical analysis of sediments from five sites in the West Richmond reach of the John F. Baldwin Ship Channel in San Francisco Bay. Additional sediment samples were collected for the USACE Waterways Experiment Station (WES) Wetlands and Uplands testing programs. The objective of the MSL study of the five West Richmond sites was to determine the physical characteristics and chemical contaminant levels in sediments proposed for dredging. Metals concentrations were comparable to or lower than those reported in the Phase 1 study. Butyltin concentrations were very low, and organic contaminants (PAH, PCB and pesticides) were not detected. Differences between Phase 1 and Phase 2 results may be explained by the fact that Phase 2 stations are outside the shipping channel. 16 refs., 4 figs., 16 tabs.

  3. Ecological evaluation of proposed dredged material from the John F. Baldwin Ship Channel: Phase 3 -- biological testing

    Energy Technology Data Exchange (ETDEWEB)

    Kohn, N.P.; Karle, L.M.; Pinza, M.R.; Mayhew, H.L.; White, P.J.; Gruendell, B.D.; Word, J.Q. [Battelle/Marine Sciences Lab., Sequim, WA (United States)

    1993-10-01

    The John F. Baldwin Ship Channel is a 28-mile-long portion of the San Francisco Bay to Stockton Ship Channel, the primary shipping lane through San Francisco Bay and Delta. The San Francisco District of the US Army Corps of Engineers (USACE) is responsible for construction of the John F. Baldwin Ship Channel, which is authorized to be deepened to a project depth of {minus}45 ft relative to mean lower low water (MLLW). Approximately 8.5 million cubic yards (mcy) of sediment will be removed from the channel to reach this project depth. The USACE requested Battelle/Marine Sciences Laboratory (MSL) to conduct testing for ocean disposal under the guidelines in Evaluation of Dredged Material Proposed for Ocean Disposal-Testing Manual (EPA/USACE 1991). This testing manual contains a tiered evaluation approach developed specifically for ocean disposal of dredged material at a selected site. In this study, John F. Baldwin Ship Channel sediments were evaluated under the Tier III (biological) testing guidance, which is considered to be highly stringent and protective of the environment. The Tier III guidance for ocean disposal testing requires tests of water column effects, (following dredged material disposal), deposited sediment toxicity, and bioaccumulation of contaminants from deposited sediment (dredged material).

  4. Draft Environmental Impact Statement, San Francisco Bay to Stockton, California Project. John F. Baldwin Ship Channel. Phase II. Central San Francisco Bay Segment.

    Science.gov (United States)

    1983-12-01

    the potential for bioaccumulation of any of the contaminants tested. 5. Effects on Special Aquatic Sites. The dredging site is an unvegetated...j TABLE A-4 BALDWIN SHIP CAHNNEL BIOACCUMULATION Tapes japonica Tissue Chemistry - Mercury Mercury Tissue Concentration (mg/kg) Treatment Elapsed Time...cod, sablefish, Pacific hake, C-2 ,,- I I_ -,... , " " ’, .... cabezon, English sole, tiger shark , bat ray, spiny dogfish, Sacramento smelt, Pacific

  5. Teaching James Baldwin.

    Science.gov (United States)

    Lopate, Phillip

    1998-01-01

    Advocates using James Baldwin's essays to motivate high school and college students to write and think critically. Contends Baldwin is the greatest American essayist since World War II. Cites Baldwin's love of language and his carefully crafted prose. Describes assignments in which students write about their mother or father or about growing up.…

  6. Impacts of ship movement on the sediment transport in shipping channel

    Institute of Scientific and Technical Information of China (English)

    JI Sheng-cheng; OUAHSINE Abdellatif; SMAOUI Hassan; SERGENT Philippe; JING Guo-qing

    2014-01-01

    The duration of ship-generated waves (wake waves) and accelerated currents can generate significant influences on the sediment transport. A 3-D numerical model is presented to estimate these effects. The hydrodynamic model is the 3-D Reynolds averaged Navier-Stokes (RANS) equations including the standardk-e model while the 3-D convection-diffusion model is for the resuspended sediment transport. This hydro-sedimentary model is firstly validated with the trench experimental results, and then applied to the open channel with a moving ship. The computed results demonstrate that the resuspension generation mainly depends on ship speeds, barge number, and the relative distance away from ship. The acceleration effects of ship on the sediment transport are analyzed as well.

  7. Ship Navigation Simulator Study Upper Mobile Bay Channel.

    Science.gov (United States)

    1985-10-01

    Garner III of the Mathematical Modeling Group, under the general supervision of Messrs. Henry B. Simmons and Frank A. Herrmann , Jr., former and successive...CHANNEL. SHIP AT COAL TERMINAL tee - .. . . . . ,STARO,.o--. ,, ;,’,: . . 0- NED ARIGO CHANEL SHI -AT: ,.. CA- TERMINA -e is* * %o*p -. I- a 4 a 6 10 18 14

  8. The James Baldwin Interview

    Directory of Open Access Journals (Sweden)

    Rosa Bobia

    2013-09-01

    Full Text Available From Rosa Bobia’s The Critical Reception of James Baldwin in France (Peter Lang, 1998; and a special note of thanks to editor Stephen Mazur, Reprise reprints Bobia’s 1985 interview with Baldwin in Atlanta, shortly before his death in France in 1987. Here, as Bobia and Baldwin enter into a brief discussion of his perception of how he was received in France in the 1950s, Baldwin seems to embrace the fact that he was at that time in France largely unknown, an outsider: “I was a maverick.” In light of the fact that in his later years Baldwin came to speak French with great ease and to live comfortably in his home in France, it may seem surprising that his tone in these pages seems to suggest a hint of disinterest in how French critics perceived him—or perhaps it is simply indicative of his deeper affiliations, just as his final burial in the US seems to indicate.

  9. The Public James Baldwin

    Directory of Open Access Journals (Sweden)

    Herb Boyd

    2016-12-01

    Full Text Available As this essay notes, James Baldwin, his words and metaphors, pervade public space at countless numbers of intersections. Lines from his plays, novels, and essays have always been an easy and handy reference for writers and artists seeking ways to ground their intentions with deeper meaning and magic. Even in a minority opinion on 22 June 2016 written by Supreme Court Justice Sonia Sotomayor, she cited several authors, including Baldwin, to underscore her point on the Court’s abrogation of the Fourth Amendment.

  10. San Francisco Bay to Stockton, California Project. Environmental Impact Statement. John F. Baldwin Ship Channel. Phase II. Richmond Harbor Approach.

    Science.gov (United States)

    1984-05-01

    analyses (Analysis of Variance or Kruskal-Wallis) and multiple comparison (Cunnett’s or Wilcoxon- Wilcox ) using 0 hours as comparative datum. Significance...Cochrani’s ’.’ Test Parametric Non-Parametri ANOVA Kruskal-W alliS - -~eter",ine omogeneit-’ Unrnett’s ilcoxoni- Compariso Wilcox non-’ mogenecus non-Sig. .5...Costa 9 ifor continuing to move en this rro~ect and we’re very hap-i-v 10 to see that prouress is being nde an d look f’or%,;ard to 11 seeing the renra

  11. 33 CFR 165.808 - Corpus Christi Ship Channel, Corpus Christi, TX, safety zone.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Corpus Christi Ship Channel, Corpus Christi, TX, safety zone. 165.808 Section 165.808 Navigation and Navigable Waters COAST GUARD... § 165.808 Corpus Christi Ship Channel, Corpus Christi, TX, safety zone. (a) The following areas...

  12. 33 CFR 165.835 - Security Zone; Port of Mobile, Mobile Ship Channel, Mobile, AL.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Port of Mobile, Mobile Ship Channel, Mobile, AL. 165.835 Section 165.835 Navigation and Navigable Waters COAST GUARD... § 165.835 Security Zone; Port of Mobile, Mobile Ship Channel, Mobile, AL. (a) Definition. As used...

  13. Vertical Ship Motion Study for Savannah, GA Entrance Channel

    Science.gov (United States)

    2011-09-01

    Theory ........................................................................................................................ 36  3.1  PIANC squat...rolling. Static equilibrium is based on the Archimedes Principle where the weight W of the ship and cargo is balanced by the weight B of the water...ship motion heave, pitch, and roll RAOs are calculated using a frequency-domain, shallow water, strip- theory program SCORES (Kaplan 1996a & b). In a

  14. Ship Channels, Published in 2000, 1:24000 (1in=2000ft) scale, Brown County, WI.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Ship Channels dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Hardcopy Maps information as of 2000. Data by this publisher...

  15. Effects of Unsymmetric Flow on a Ship Traveling in a Channel

    Institute of Scientific and Technical Information of China (English)

    XIAJin-zhu; MIA0Quan-ming

    2004-01-01

    A modified Dawson's method that deals with asymmetric free-surface flow is applied to investigate the effect of the channel walls and water depth on the hydrodynamics of a ship running off the eenterline of a restricted waterway. The comparison of the numerical results with the experimental results shows that the method and the computer program are valid to predict the hydrodynamic forces and ship waves when the under keel clearance is not extremely small.The numerical results also demonstrate how the flow and pressure vary unsymmetriely on both sides of the ship and how the water depth and bank distance influence the hydrodynamic forces and ship waves.

  16. 3D Modeling of sediment movement by ships-generated wakes in confined shipping channel

    Institute of Scientific and Technical Information of China (English)

    Shengcheng JI; Abdellatif OUAHSINE; Hassan SMAOUI; Philippe SERGENT

    2014-01-01

    Ship-generated waves and return currents are capable of re-suspending significant quantities of bottom and bank sediments. However, most of the previous studies done on the subject do not show how and where sediment is re-suspended by the wakes and the directions of net transport. In this paper, a 3D numerical model based on hydro-sedimentary coupling is presented to search the relationship between the sediment movement, and the pattern of ship-generated waves around and far away from the vessel and the return currents around the ships. The hydrodynamic model is based on 3D Navier-Stokes equations including the standard k-ε model for turbulence processes, and the sediment transport model is based on a 3D equation for the re-suspended sediment transport. The computation results show that the areas of sediment concentration and transport (whether by resuspension or by the bedload) depend mainly on the position, the speed of the ship in the waterways, the kinematics of ship-generated waves and on the return flows. Thus, a map of sediment distribution and the modes of sediment transport generated by the passage of the ship are presented.

  17. Shipping

    NARCIS (Netherlands)

    Wijnolst, N.; Wergeland, T.

    1996-01-01

    Shipping is a multi-faceted industry which is rather complex to define from an academic point of view. This book attempts to grasp these complexities and provide the reader with an overview of the main topics and terminology in shipping. The book is based on material from our courses in shipping at

  18. Vertical Ship Motion Study for Ambrose Entrance Channel, New York

    Science.gov (United States)

    2014-05-01

    29 4 Ship Squat Theory ...critical damping), (d) roll mass radius of gyration, k4, and (e) pitch mass radius of gyration, k6. Static equilibrium is based on Archimedes ...using a frequency-domain, shallow water, strip- theory program SCORES (Kaplan 1996a and b). In a manner similar to that used to calculate sinkage and

  19. Attribution of atmospheric sulfur dioxide over the English Channel to dimethyl sulfide and changing ship emissions

    Science.gov (United States)

    Yang, Mingxi; Bell, Thomas G.; Hopkins, Frances E.; Smyth, Timothy J.

    2016-04-01

    Atmospheric sulfur dioxide (SO2) was measured continuously from the Penlee Point Atmospheric Observatory (PPAO) near Plymouth, United Kingdom, between May 2014 and November 2015. This coastal site is exposed to marine air across a wide wind sector. The predominant southwesterly winds carry relatively clean background Atlantic air. In contrast, air from the southeast is heavily influenced by exhaust plumes from ships in the English Channel as well as near Plymouth Sound. A new International Maritime Organization (IMO) regulation came into force in January 2015 to reduce the maximum allowed sulfur content in ships' fuel 10-fold in sulfur emission control areas such as the English Channel. Our observations suggest a 3-fold reduction in ship-emitted SO2 from 2014 to 2015. Apparent fuel sulfur content calculated from coincidental SO2 and carbon dioxide (CO2) peaks from local ship plumes show a high level of compliance to the IMO regulation (> 95 %) in both years (˜ 70 % of ships in 2014 were already emitting at levels below the 2015 cap). Dimethyl sulfide (DMS) is an important source of atmospheric SO2 even in this semi-polluted region. The relative contribution of DMS oxidation to the SO2 burden over the English Channel increased from about one-third in 2014 to about one-half in 2015 due to the reduction in ship sulfur emissions. Our diel analysis suggests that SO2 is removed from the marine atmospheric boundary layer in about half a day, with dry deposition to the ocean accounting for a quarter of the total loss.

  20. Research on Key Techniques for Video Surveillance System Applied to Shipping Channel Management

    Institute of Scientific and Technical Information of China (English)

    WANG Lin; ZHUANG Yan-bin; ZHENG Cheng-zeng

    2007-01-01

    A video patrol and inspection system is an important part of the government's shipping channel information management. This system is mainly applied to video information gathering and processing as a patrol is carried out. The system described in this paper can preview, edit, and add essential explanation messages to the collected video data. It then transfers these data and messages to a video server for the leaders and engineering and technical personnel to retrieve, play, chart, download or print. Each department of the government will use the system's functions according to that department's mission. The system can provide an effective means for managing the shipping enterprise. It also provides a valuable reference for the modernizing of waterborne shipping.

  1. Attenuation Characteristic Modeling of Power-line Channel in Cargo Ships

    Science.gov (United States)

    Tsuzuki, Shinji; Ishii, Seiichiro; Nishioka, Jun; Yamada, Yoshio

    Power-line communication (PLC) based local area network (LAN) in cargo ships is one of the promising applications of the PLC technology. In this paper, the signal attenuation characteristic when transmitting with the differential-mode (DIF) and the common-mode (COM) has been modeled respectively to design the PLC network in a cargo ship. The characteristic has been analyzed from the measured transfer function of 440V power-line channels for reefer containers in two typical ships. The measured transfer function was averaged from 2M to 30MHz (or until the measurement limit frequency) and approximated by the number of branches and the length of a signal propagating route. The mean accuracy of the obtained approximation equations was ±4dB. The area where the signal attenuation of COM transmission is less than that of DIF transmission has been studied from the equations.

  2. A NEW LARGE CAVITATION CHANNEL IN CHINA SHIP SCIENTIFIC RESEARCH CENTER

    Institute of Scientific and Technical Information of China (English)

    Wang Tian-kui; Lu Fang; Fan Xiao-bing; Shi Xiao-jun

    2003-01-01

    After about 10 years' runing of the LCC(DTRC,USA) and the HYKAT(HSVA,Germany), another new large cavitation channel with low background noise is to be in operation in China Ship Scientific Research Center(CSSRC),Wuxi,China. The important specific properties of the channel are the large test section (2.0 m in height, 2.2 m in width and 10.5 m in length), the maximum speed of more than 15 m/s, the low turbulence level, the low background noise of the whole facility, togother with the new noise measurement system. So large scale models can be tested with only minor wall effects and at high Renolds numbers, and the pretentious acoustical measurements can be performed. This paper describes the features of the new channel and the first test results obtained during extensive calibration and validation.

  3. The Genetic Psychologies of James Mark Baldwin and Jean Piaget.

    Science.gov (United States)

    Cahan, Emily D.

    1984-01-01

    Describes the ideas proposed by James Mark Baldwin which anticipated much of Jean Piaget's work. The goals, genetic approach, and epistemological assumptions underlying Piaget's inquiry into cognitive development found explicit statement in Baldwin's work. Discusses Baldwin's current importance for psychology. (Author/CB)

  4. A decision support system for real-time management of dissolvedoxygen in the Stockton deep water ship channel

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, N.W.T.; Chen, Carl W.; Stringfellow, William T.

    2003-07-16

    A decision support system(DSS)is under development to assistin the control and management of episodes of dissolved oxygen sag in aDeep Water Ship Channel (DWSC), located in Stockton, California. The DWSCwas formed by excavating the bed of the San Joaquin River in the 1950'sto allow navigation by ocean-going cargo ships to the Port of Stockton.The deepened channel has the effect of increasing hydraulic residencetime by a factor of ten. allowing accumulation of decaying algae andother oxygen demanding substances - which creates a barrier to themigration of anadromous fish. This problem, which manifests itself inlate summer and early autumn, is an impediment to a multimillion dollarhabitat restoration effort for the salmon fishery in the San JoaquinRiver basin (SJRB). A hydrodynamic and water quality model of the Deltaand San Joaquin River forms the basis of the DSS which will provideforecasts of dissolved oxygen sag in the DWSC and provide modelingsupport for management actions such as forced aeration to improvedissolved oxygen concentrations in the Ship Channel. A graphical userinterlace, currently used for displaying flow and salinity forecasts onthe San Joaquin River, is being adapted to allow the display of dissolvedoxygen forecasts and to encourage the formation of a stakeholder-ledentity or institution to adaptively manage the problem.

  5. Exploring Baldwin in Montpellier: The 2014 “James Baldwin: Transatlantic Commuter” Conference

    Directory of Open Access Journals (Sweden)

    John Keene

    2015-09-01

    Full Text Available This piece presents a brief overview of the “James Baldwin: Transatlantic Commuter” conference, which was held at the Université Paul-Valéry, Montpellier, in Montpellier, France, from 5–7 June 2014.

  6. Regional Sediment Management Studies of Matagorda Ship Channel and Matagorda Bay System, Texas

    Science.gov (United States)

    2013-08-01

    17  2.5.11  Channel to Palacios ...Table 12. Maintenance dredging for Channel to Palacios . .................................................................. 18  Table 13. Distribution...of dredged material for Channel to Palacios . ................................................... 19  Table 14. Ranges of bulk densities and solids

  7. James Baldwin (1841-1925): A Man Who Loved Stories.

    Science.gov (United States)

    Fisher, Peter J. L.; Shapiro, Sheila

    1995-01-01

    Suggests that James Baldwin was one of the most prolific authors of schoolbooks for children during his lifetime (1841-1925). Notes that in addition to the Baldwin Readers (1897), he coauthored the Harper Readers (1888) and Expressive Readers (1911). Estimates that his publications numbered 54 volumes and that 26 million copies of his works sold…

  8. James Mark Baldwin: The Natural and the Good.

    Science.gov (United States)

    Cahan, Emily D.

    2003-01-01

    Explores relationships between ethics and individual and societal development in psychologist Baldwin's work, focusing on how he extended evolutionary theory to encompass social and ethical development. Asserts that Baldwin tried to demonstrate a natural developmental process leading toward truth, beauty, the Good, and God; that developmental…

  9. Watching Time: James Baldwin and Malcolm X

    Directory of Open Access Journals (Sweden)

    Mikko Tuhkanen

    2016-12-01

    Full Text Available Taking its cue from recent scholarly work on the concept of time in African American literature, this essay argues that, while both James Baldwin and Malcolm X refuse gradualism and insist on “the now” as the moment of civil rights’ fulfillment, Baldwin also remains troubled by the narrowness assumed by a life, politics, or ethics limited to the present moment. In his engagement with Malcolm’s life and legacy—most notably in One Day, When I Was Lost, his screen adaptation of Malcolm’s autobiography—he works toward a temporal mode that would be both punctual and expansive. What he proposes as the operative time of chronoethics is an “untimely now”: he seeks to replace Malcolm’s unyielding punctuality with a different nowness, one that rejects both calls for “patience,” endemic to any politics that rests on the Enlightenment notion of “perfectibility,” and the breathless urgency that prevents the subject from seeing anything beyond the oppressive system he wants overthrown. Both thinkers find the promise of such untimeliness in their sojourns beyond the United States.

  10. William Kessen and James Mark Baldwin: Lessons from the History of Developmental Psychology.

    Science.gov (United States)

    Ferrari, Michel; Runions, Kevin; Fueser, Josephine J.

    2003-01-01

    Considers the work of developmental scholar William Kessen (1925-1999) in light of James Mark Baldwin, one of the founders and principal architects of developmental psychology. Traces Kessen's interest in Baldwin's thought and examines Baldwin's legacy for developmental psychologists. Asserts that Baldwin's theory sought to integrate the role of…

  11. Going to Meet James Baldwin in Provence

    Directory of Open Access Journals (Sweden)

    D. Quentin Miller

    2015-09-01

    Full Text Available The author travels to St.-Paul-de-Vence, the site of Baldwin’s final decades, with the intention of understanding expatriation and/or exile more deeply. The intention of this visit is to fill in some of the gaps in Baldwin’s official biographies, which do not tend to dwell on his time spent in Provence as much as his time in Paris, Turkey, New York, and elsewhere. By interviewing a woman who knew Baldwin well during those years, the author manages to add new layers to his understanding of Baldwin’s late years, but finally arrives at the understanding that writing (rather than analyzing is the main goal of the expatriate writer. Inspired by Baldwin’s muse, he stops contemplating his subject and gets to work, finally connecting the act of writing to expatriation by doing it.

  12. Reading and Theorizing James Baldwin: A Bibliographic Essay

    Directory of Open Access Journals (Sweden)

    Conseula Francis

    2015-09-01

    Full Text Available Readers and critics alike, for the past sixty years, generally agree that Baldwin is a major African-American writer. What they do not agree on is why. Because of his artistic and intellectual complexity, Baldwin’s work resists easy categorization and Baldwin scholarship, consequently, spans the critical horizon. This essay provides an overview of the three major periods of Baldwin scholarship. 1963–73 is a period that begins with the publication of The Fire Next Time and sees Baldwin grace the cover of Time magazine. This period ends with Time declaring Baldwin too passé to publish an interview with him and with critics questioning his relevance. The second period, 1974–87, finds critics attempting to rehabilitate Baldwin’s reputation and work, especially as scholars begin to codify the African-American literary canon in anthologies and American universities. Finally, scholarship in the period after Baldwin’s death takes the opportunity to challenge common assumptions and silences surrounding Baldwin’s work. Armed with the methodologies of cultural studies and the critical insights of queer theory, critics set the stage for the current Baldwin renaissance.

  13. James Baldwin: Biographical Dispatches on a Freedom Writer

    Directory of Open Access Journals (Sweden)

    Phillip Luke Sinitiere

    2016-12-01

    Full Text Available This essay presents the idea of James Baldwin as a freedom writer, the organizing idea of my biography in progress. As a freedom writer, Baldwin was a revolutionary intellectual, an essayist and novelist committed unfailingly to the realization of racial justice, interracial political equality, and economic democracy. While the book is still in process, this short essay narrates autobiographically how I came to meet and know Baldwin’s work, explains in critical fashion my work in relation to existing biographies, and reflects interpretively my thoughts-in- progress on this fascinating and captivating figure of immense historical and social consequence.

  14. 78 FR 10524 - Drawbridge Operation Regulation; Charenton Canal, Baldwin, LA

    Science.gov (United States)

    2013-02-14

    ...The Coast Guard has issued a temporary deviation from the operating schedule that governs the Burlington Northern Santa Fe (BNSF) Railway Company swing span bridge across Charenton Canal, mile 0.4, at Baldwin, St. Mary Parish, Louisiana. The deviation is necessary to complete scheduled repairs for the continued safe operation of the bridge. This deviation allows the bridge to remain in the......

  15. Early Canadian Child Study: From Baldwin and Tracy to Blatz.

    Science.gov (United States)

    Wright, Mary J.

    A brief overview of the history of the scientific study of the child in Canada is provided in this paper. Discussion begins with an account of the scholarly interests and activities of James Mark Baldwin, who brought modern psychology to Canada, and Frederic Tracy, who objected to child-centered approaches to child rearing. The remainder of the…

  16. James Mark Baldwin and the Aesthetic Development of the Individual.

    Science.gov (United States)

    Parsons, Michael J.

    1980-01-01

    This paper recounts the ideas of the American cognitive-developmental psychologist James Mark Baldwin (1861-1934) on aesthetic experience: his conceptualization of aesthetic experience as immediate, semblant, personalized, and idealized; and his three-stage theory of aesthetic development. (SJL)

  17. ERDC Ship/Tow Simulator

    Data.gov (United States)

    Federal Laboratory Consortium — Performing Advanced Hydrodynamic ModelingEngineers and ship pilots can now overcome the challenges of evaluating navigation channel designs, modifications and safety...

  18. Consciousness, social heredity, and development: the evolutionary thought of James Mark Baldwin.

    Science.gov (United States)

    Wozniak, Robert H

    2009-01-01

    James Mark Baldwin is one of the most important and least known early American scientific psychologists. Drawing inspiration from Charles Darwin and other evolutionists of the period, Baldwin developed a biosocial theory of psychological development that influenced both Jean Piaget and Lev S. Vygotsky; and he proposed a mechanism relating learned adaptations in the individual to phylogenesis (frequently termed the "Baldwin effect") that is of considerable interest to those currently modeling processes of learning and evolution. After a brief introduction to Baldwin's career, this article describes the intellectual context within which his evolutionary thinking developed. Three of his most important contributions are then discussed: his theory of individual adaptation or learning, his concept of "social heredity," and his articulation of the "Baldwin effect." The article concludes with a brief evaluation of the contemporary importance of Baldwin's ideas.

  19. The Baldwin effect in the narrow emission lines of AGNs

    CERN Document Server

    Zhang, Kai; Gaskell, C Martin; Dong, Xiao-Bo

    2012-01-01

    The anti-correlations between the equivalent widths of emission lines and the continuum luminosity in AGNs, known as the Baldwin effect are well established for broad lines, but are less well studied for narrow lines. In this paper we explore the Baldwin effect of narrow emission lines over a wide range of ionization levels and critical densities using a large sample of broad-line, radio-quiet AGNs taken from Sloan Digital Sky Survey (SDSS) Data Release 4. These type1 AGNs span three orders of magnitude in continuum luminosity. We show that most narrow lines show a similar Baldwin effect slope of about -0.2 while the significant deviations of the slopes for [NII] 6583, [OII] 3727, [NeV] 3425, and the narrow component of Ha can be explained by the influence of metallicity, star-formation contamination and possibly by difference in the shape of the UV-optical continuum. The slopes do not show any correlation with either the ionization potential or the critical density. We show that a combination of 50% variatio...

  20. Trends in James Baldwin Criticism 2001–10

    Directory of Open Access Journals (Sweden)

    Lynn Orilla Scott

    2016-12-01

    Full Text Available James Baldwin criticism from 2001 through 2010 is marked by an increased appreciation for Baldwin’s entire oeuvre including his writing after the mid 1960s. The question of his artistic decline remains debated, but more scholars find a greater consistency and power in Baldwin’s later work than previous scholars had found. A group of dedicated Baldwin scholars emerged during this period and have continued to host regular international conferences. The application of new and diverse critical lenses—including cultural studies, political theory, religious studies, and black queer theory—contributed to more complex readings of Baldwin’s texts. Historical and legal approaches re-assessed Baldwin’s relationship to the Civil Rights and Black Power movements and new material emerged on Baldwin’s decade in Turkey. Some historical perspective gave many critics a more nuanced approach to the old “art” vs. “politics” debate as it surfaced in Baldwin’s initial reception, many now finding Baldwin’s “angry” work to be more “relevant” than “out of touch” as it was thought of during his lifetime. In the first decade of the new millennium, three books of new primary source material, a new biography, four books of literary criticism, three edited collections of critical essays, two special issues of journals and numerous book chapters and articles were published, marking a significant increase not only in the quantity, but the quality of Baldwin criticism.

  1. After Decolonization, After Civil Rights: Chinua Achebe and James Baldwin

    Directory of Open Access Journals (Sweden)

    Bill Schwarz

    2015-09-01

    Full Text Available The escalation of systematic, if random, violence in the contemporary world frames the concerns of the article, which seeks to read Baldwin for the present. It works by a measure of indirection, arriving at Baldwin after a detour which introduces Chinua Achebe. The Baldwin–Achebe relationship is familiar fare. However, here I explore not the shared congruence between their first novels, but rather focus on their later works, in which the reflexes of terror lie close to the surface. I use Achebe’s final novel, Anthills of the Savanah, as a way into Baldwin’s “difficult” last book, The Evidence of Things Not Seen, suggesting that both these works can speak directly to our own historical present. Both Baldwin and Achebe, I argue, chose to assume the role of witness to the evolving manifestations of catastrophe, which they came to believe enveloped the final years of their lives. In order to seek redemption they each determined to craft a prose—the product of a very particular historical conjuncture—which could bring out into the open the prevailing undercurrents of violence and terror.

  2. Risks to Navigation at the Matagorda Ship Channel Entrance, Texas, Phase 2: Evaluation of Significant Risk Factors

    Science.gov (United States)

    2011-08-01

    jetties are deteriorating. As a result of this deterioration and lowered beach and dunes adjacent to the jetties, there are overwash occurrences during...subjected to the cross flow, and the ship will tend to a star - board drift angle, but still be subjected to forces tending to translate it to port. Once

  3. Trouble at Tyson Alley: James Mark Baldwin's arrest in a Baltimore bordello.

    Science.gov (United States)

    Wozniak, Robert H; Santiago-Blay, Jorge A

    2013-11-01

    In June 1908, James Mark Baldwin, then Professor of Psychology and Philosophy at Johns Hopkins University and at the pinnacle of his career, was arrested in a Baltimore house of prostitution. Although he insisted on both his legal and moral innocence and all legal charges against him were dismissed, the threat of scandal led Hopkins authorities to demand Baldwin's resignation and Baldwin to remove himself and his family permanently to France. While this is one of the most notorious events in the early history of American psychology, almost nothing has been known about the incident itself, because both Baldwin and Hopkins took great pains to keep these details private. Based on court records, contemporary newspaper accounts, and archival materials in the Presidential Records at Hopkins and elsewhere, it is now possible to reconstruct the events of 1908 and their aftermath in detail. This article describes these occurrences; places them in the context of Baldwin's life, personality, and career; presents newly obtained information on the immediate consequences of the arrest, including circumstances leading to Baldwin's forced resignation; and describes the long-term impact of Baldwin's removal from the United States. Although no definitive conclusion with regard to Baldwin's guilt or innocence can be reached, we conclude by contrasting the treatment received at the hands of his colleagues in psychology with the lifelong support received from his wife and family, and suggest that Baldwin may have been the victim of a premature rush to judgment. (PsycINFO Database Record (c) 2013 APA, all rights reserved).

  4. Relatively Conscious: The Enduring Rage of Baldwin and the Education of a White Southern Baptist Queer

    Directory of Open Access Journals (Sweden)

    Jon-Marc McDonald

    2016-12-01

    Full Text Available Delivered in Paris at the 2016 International James Baldwin Conference just two weeks before the killing of 49 individuals at a LGBT nightclub in Orlando, Florida on 26 June 2016, “Relatively Conscious” explores, through the eyes of an LGBT American and the words of James Baldwin, how separate and unequal life remains for so many within the United States. Written in the tradition of memoir, it recounts how, just as Paris saved Baldwin from himself, the writer’s life was transformedupon the discovery of Baldwin.

  5. Consciousness, Social Heredity, and Development: The Evolutionary Thought of James Mark Baldwin

    Science.gov (United States)

    Wozniak, Robert H.

    2009-01-01

    James Mark Baldwin is one of the most important and least known early American scientific psychologists. Drawing inspiration from Charles Darwin and other evolutionists of the period, Baldwin developed a biosocial theory of psychological development that influenced both Jean Piaget and Lev S. Vygotsky; and he proposed a mechanism relating learned…

  6. The Making of a Developmental Science: The Contributions and Intellectual Heritage of James Mark Baldwin.

    Science.gov (United States)

    Cairns, Robert B.

    1992-01-01

    James Baldwin's ideas, such as that of a genetic science, and their influence on later theorists such as Piaget, Vygotsky, and Kohlberg, are described. The further Baldwin moved from the study of infancy, the more speculative and the less empirically verifiable became his ideas. (BC)

  7. James Baldwin's "Everybody's Protest Novel": Educating Our Responses to Racism

    Science.gov (United States)

    Frank, Jeff

    2014-01-01

    The aim of this article is to establish--and explore--James Baldwin's significance for educational theory. Through a close reading of "Everybody's Protest Novel", I show that Baldwin's thinking is an important (if unrecognized) precursor to the work of Stanley Cavell and Cora Diamond, and is relevant to a number of…

  8. The Origins of Understanding Self and Other: James Mark Baldwin's Theory.

    Science.gov (United States)

    Muller, Ulrich; Runions, Kevin

    2003-01-01

    Offers psychologist Baldwin's theory as an approach to the development of social understanding emphasizing gradual differentiation of self and other and rooting this process in embodied activity within a social context. Argues that Baldwin's account provides a stronger starting point for conceptualizing the infant's discovery of other, self, and…

  9. The historical roots of Theory of Mind: the work of James Mark Baldwin.

    Science.gov (United States)

    Obiols, Jordi E; Berrios, German E

    2009-09-01

    The historical development of the concepts underpinning what is currently called 'Theory of Mind' (ToM) has received little attention. This paper deals with the contribution of James Mark Baldwin (1861-1934) whose work on such concepts was original and profound. Embedding his version of ToM into a coherent developmental theory of human cognition, and suggesting novel methods of observation, Baldwin also proposed new conceptual tools and protoconcepts such as the 'ejective-self'. Baldwin also wrote on the distinction between the mental and the non-mental, and on play and imitation. His influence on Jean Piaget, another important figure in the development of ToM, is briefly touched upon here, as are possible explanations for Baldwin's woeful absence from the 20th-century ToM hagiography.

  10. Shipping Fairways

    Data.gov (United States)

    Department of Homeland Security — Various shipping zones delineate activities and regulations for marine vessel traffic. Traffic lanes define specific traffic flow, while traffic separation zones...

  11. Partial pressure (or fugacity) of carbon dioxide, salinity and other variables collected from Surface underway observations using Barometric pressure sensor, Carbon dioxide (CO2) gas analyzer and other instruments from NOAA Ship DAVID STARR JORDAN in the Channel Islands National Marine Sanctuary, Cordell Bank National Marine Sanctuary and others from 2007-07-25 to 2007-10-28 (NCEI Accession 0144352)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NCEI Accession 0144352 includes Surface underway data collected from NOAA Ship DAVID STARR JORDAN in the Channel Islands National Marine Sanctuary, Cordell Bank...

  12. Prediction of ship-ship interactions in ports by a non-hydrostatic model

    Institute of Scientific and Technical Information of China (English)

    周明贵; 邹早建

    2015-01-01

    Complicated channel geometry and currents may aggravate the interactions between passing ships and berthed ships, which should be evaluated and taken into account in a port design. A method for predicting the ship-ship interactions, based on a non-hydrostatic shallow water flow model, is presented in this paper and is validated by comparing the numerical results with experimental data. The method is subsequently applied to predict the interaction forces acting on a berthed ship due to a passing ship in ports. The influences of the difference of the water depths between the dock and the main channel, the dock geometry, the current and another berthed ship in the dock on the ship-ship interactions are studied. Analysis based on the numerical results is carried out, which is useful for the port design.

  13. The Baldwin effect and genetic assimilation: revisiting two mechanisms of evolutionary change mediated by phenotypic plasticity.

    Science.gov (United States)

    Crispo, Erika

    2007-11-01

    Two different, but related, evolutionary theories pertaining to phenotypic plasticity were proposed by James Mark Baldwin and Conrad Hal Waddington. Unfortunately, these theories are often confused with one another. Baldwin's notion of organic selection posits that plasticity influences whether an individual will survive in a new environment, thus dictating the course of future evolution. Heritable variations can then be selected upon to direct phenotypic evolution (i.e., "orthoplasy"). The combination of these two processes (organic selection and orthoplasy) is now commonly referred to as the "Baldwin effect." Alternately, Waddington's genetic assimilation is a process whereby an environmentally induced phenotype, or "acquired character," becomes canalized through selection acting upon the developmental system. Genetic accommodation is a modern term used to describe the process of heritable changes that occur in response to a novel induction. Genetic accommodation is a key component of the Baldwin effect, and genetic assimilation is a type of genetic accommodation. I here define both the Baldwin effect and genetic assimilation in terms of genetic accommodation, describe cases in which either should occur in nature, and propose that each could play a role in evolutionary diversification.

  14. Brownsville Ship Channel Hydrodynamic Modeling

    Science.gov (United States)

    2012-01-01

    31  Figure 31. Laguna Madre analysis locations...wave resuspension and circulation of sediment in Laguna Madre .2 The navigation impacts are assessed by performing model simulations of the...to better resolve the shallow-water habitats, including South Bay, Bahia Grande, and South Laguna Madre . These habitats are discussed further

  15. James Baldwin und das Rassenproblem in den USA. Unterrichtsprojekt zum Komplex "Texte und ihre gesellschaftliche Bedingtheit" (James Baldwin and the Race Problem in the USA. Teaching Project in the Series "Texts and their Social Context")

    Science.gov (United States)

    Kerschgens, Edda

    1977-01-01

    Reports on an 18-hour teaching project with students at a teachers' college. Four Baldwin texts were used. Questions considered included whether Baldwin's treatment of the race problem reveals any changes or shifts of emphasis. Suggestions are made for adaptation to teaching in grades 11-13. (Text is in German.) (IFS/WGA)

  16. 78 FR 18366 - Baldwin Hardware Corporation, a Subsidiary of Spectrum Brands, Formerly Known as a Subsidiary of...

    Science.gov (United States)

    2013-03-26

    ... published in the Federal Register on September 2, 2011 (76 FR 54796). At the request of a company official... Employment and Training Administration Baldwin Hardware Corporation, a Subsidiary of Spectrum Brands..., 2011, applicable to workers of Baldwin Hardware Corporation, a Subsidiary of Stanley Black &...

  17. Possessing History and American Innocence: James Baldwin, William F. Buckley, Jr., and the 1965 Cambridge Debate

    Directory of Open Access Journals (Sweden)

    Daniel Robert McClure

    2016-12-01

    Full Text Available The 1965 debate at Cambridge University between James Baldwin and William F. Buckley, Jr., posed the question: “Has the American Dream been achieved at the Expense of the American Negro?” Within the contours of the debate, Baldwin and Buckley wrestled with the ghosts of settler colonialism and slavery in a nation founded on freedom and equality. Framing the debate within the longue durée, this essay examines the deep cultural currents related to the American racial paradox at the height of the Civil Rights movement. Underscoring the changing language of white resistance against black civil rights, the essay argues that the Baldwin and Buckley debate anticipated the ways the U.S. would address racial inequality in the aftermath of the civil rights era and the dawn of neoliberalism in the 1970s.

  18. Test Ship

    Data.gov (United States)

    Federal Laboratory Consortium — The U. S. Navy dedicated the decommissioned Spruance Class destroyer ex-PAUL F. FOSTER (EDD 964), Test Ship, primarily for at sea demonstration of short range weapon...

  19. 东南亚航运通道安全合作机制研究%Research on ShiPPing ChanneL Security CooPeration Mechanism of Southeast Asia Area

    Institute of Scientific and Technical Information of China (English)

    陈飞儿; 左志维; 冯桂

    2015-01-01

    东南亚航运通道是国家能源等运输的关键路径,其利益攸关方形成了众多的安全合作机制。已有文献对安全合作机制的必要性、有效性和可行性进行了充分阐释,但对其困难性未有全面研究。为此,以马六甲海峡为例,从航运通道安全的定义和内涵入手,介绍现有的安全合作机制,并应用建构主义理论和新制度经济学方法探讨了合作机制的形成、集体行动的困境以及制度变迁的原因和趋势,提出新的安全合作机制。%The shipping channel of Malacca Strait is a critical path for energy transport. Stakeholders in the context of Southeast Asian shipping channel accomplish numerous security cooperation mechanism. Existing literatures explained a lot on the need for security cooperation mechanisms,effectiveness and feasibility,but its difficulty is not a comprehensive study. The Malacca Strait is taken as an example,starting from definition and connotation of shipping channel security,to describe existing security cooper_ation mechanisms. Constructivist theory and new institutional economics approach are applied to explore the formation of coopera_tive mechanisms,collective action dilemma and causes and trends of institutional change,and to promote a new security coopera_tion mechanism.

  20. Demontration of Integrated Optimization Software at the Baldwin Energy Complex

    Energy Technology Data Exchange (ETDEWEB)

    Rob James; John McDermott; Sanjay Patnaik; Steve Piche`

    2009-01-07

    This project encompassed the design, development, and demonstration of integrated online optimization systems at Dynegy Midwest Generation's Baldwin Energy Complex (BEC) located in Baldwin, Illinois. The overall project objective was to improve coal-based generation's emission profile, efficiency, maintenance requirements and plant asset life in order to enhance the long-term viability of the United States abundant coal resources. Five separate but integrated optimization products were developed, addressing combustion, sootblowing, SCR operations, overall unit thermal performance, and plant-wide availability optimization. Optimization results are inherently unit-specific and cannot be known for a particular generating unit in advance. However, NeuCo believed that the following were reasonable targets for the completed, integrated set of products: Furnace NOx reduction improvement by 5%, Heat rate improvement by 1.5%, Increase of annual Available MWh by 1.5%, Commensurate reductions in greenhouse gases, mercury, and particulates; and Commensurate increases in profitability from lower costs, improved reliability, and greater commercial availability. The goal during Phase I was to establish each system and demonstrate their integration in unified plant optimization. Efforts during Phase I focused on: (1) developing, deploying, integrating, and testing prototypes for each of the five products; (2) identifying and addressing issues required for the products to integrate with plant operations; and (3) systematically collecting and assimilating feedback to improve subsequent product releases. As described in the Phase II continuation application NeuCo successfully achieved the goal for Phase I. The goal of Phase II was to improve upon the products installed and tested in Phase I and to quantify the benefits of the integrated system. As this report documents, NeuCo has also successfully achieved the goal for Phase II. The overall results of the project, compared

  1. The Struggle of Integration: James Baldwin and Melanie Klein in the Context of Black Lives Matter

    Directory of Open Access Journals (Sweden)

    David W McIvor

    2016-12-01

    Full Text Available Recent killings of unarmed black citizens are a fresh reminder of the troubled state of racial integration in the United States. At the same time, the unfolding Black Lives Matter protest movements and the responses by federal agencies each testify to a not insignificant capacity for addressing social pathologies surrounding the color line. In order to respond to this ambivalent situation, this article suggests a pairing between the work of James Baldwin and that of the psychoanalyst Melanie Klein. I will argue that we cannot fully appreciate the depths of what Baldwin called the “savage paradox” of race without the insights provided by Klein and object relations psychoanalysis. Conversely, Baldwin helps us to sound out the political significance of object relations approaches, including the work of Klein and those influenced by her such as Hanna Segal and Wilfred Bion. In conversation with the work of Baldwin, object relations theory can help to identify particular social settings and institutions that might allow concrete efforts toward racial justice to take root.

  2. Faculty Perspectives on Baldwin and Chang's Mid-Career Faculty Development Model

    Science.gov (United States)

    Pastore, Donna L.

    2013-01-01

    The purpose of this study was to determine the merit and applicability of the mid-career faculty development model proposed by Baldwin and Chang (2006). A total of 7 associate and 10 full professors participated in semi-structured interviews. Categories were developed from an inductive analysis. The results showed positive support for the model…

  3. Ship Design

    Science.gov (United States)

    1982-01-01

    Guided missile cruiser equipped with advanced Aegis fleet defense system which automatically tracks hundreds of attacking aircraft or missiles, then fires and guides the ship's own weapons in response. Designed by Ingalls Shipbuilding for the US Navy, the U.S.S. Ticonderoga is the first of four CG-47 cruisers to be constructed. NASTRAN program was used previously in another Navy/Ingalls project involving design and construction of four DDG-993 Kidd Class guided missile destroyers.

  4. Baldwin effect under multipeaked fitness landscapes: Phenotypic fluctuation accelerates evolutionary rate

    Science.gov (United States)

    Saito, Nen; Ishihara, Shuji; Kaneko, Kunihiko

    2013-05-01

    Phenotypic fluctuations and plasticity can generally affect the course of evolution, a process known as the Baldwin effect. Several studies have recast this effect and claimed that phenotypic plasticity accelerates evolutionary rate (the Baldwin expediting effect); however, the validity of this claim is still controversial. In this study, we investigate the evolutionary population dynamics of a quantitative genetic model under a multipeaked fitness landscape, in order to evaluate the validity of the effect. We provide analytical expressions for the evolutionary rate and average population fitness. Our results indicate that under a multipeaked fitness landscape, phenotypic fluctuation always accelerates evolutionary rate, but it decreases the average fitness. As an extreme case of the trade-off between the rate of evolution and average fitness, phenotypic fluctuation is shown to accelerate the error catastrophe, in which a population fails to sustain a high-fitness peak. In the context of our findings, we discuss the role of phenotypic plasticity in adaptive evolution.

  5. Shipping Industry Structure

    NARCIS (Netherlands)

    Wijnolst, N.; Waals, F.

    1999-01-01

    Understanding Shipping Management requires a thorough understanding of the Shipping Industry Structure. This book provides this knowledge base and should be seen in conjunction with two other books: Shipping and Design Innovation in Shipping. Shipping Industry Structure was intended as the first par

  6. Encoding the Shipping Crisis

    Institute of Scientific and Technical Information of China (English)

    Xue Lina; Lin Lin; Wang Siyuan

    2009-01-01

    @@ According to the statistics from Frech shipping advisory bod-ies,till December 21,2008,165 container ships were idle,leav-ing the fees,such as anchorage fees,ship maintaining fee,crev resettlement fee and repaying loans for ship-buying,an-noying the ship-owners.

  7. James Baldwin and the Question of Privacy: A Roundtable Conversation at the 2014 American Studies Convention

    Directory of Open Access Journals (Sweden)

    Brian Norman

    2015-09-01

    Full Text Available Six key Baldwin scholars converged at the 2014 American Studies Association to consider the question of privacy, informed by their own book-length projects in process. Key topics included Baldwin’s sexuality and the (open secret, historical lack of access to privacy in African-American experience, obligations for public representation in African-American literary history, Baldwin’s attempts to construct home spaces, public access to Baldwin’s private documents, and ethical matters for scholars in creating and preserving Baldwin’s legacy, including his final home in St. Paul-de-Vence.

  8. Green shipping management

    CERN Document Server

    Lun, Y H Venus; Wong, Christina W Y; Cheng, T C E

    2016-01-01

    This book presents theory-driven discussion on the link between implementing green shipping practices (GSP) and shipping firm performance. It examines the shipping industry’s challenge of supporting economic growth while enhancing environmental performance. Consisting of nine chapters, the book covers topics such as the conceptualization of green shipping practices (GSPs), measurement scales for evaluating GSP implementation, greening capability, greening and performance relativity (GPR), green management practice, green shipping network, greening capacity, and greening propensity. In view of the increasing quest for environment protection in the shipping sector, this book provides a good reference for firms to understand and evaluate their capability in carrying out green operations on their shipping activities.

  9. Novel Ship Propulsion System

    Institute of Scientific and Technical Information of China (English)

    JI Yulong; SUN Yuqing; ZHANG Hongpeng; ZHANG Yindong; CHEN Haiquan

    2009-01-01

    As the development tends towards high-speed, large-scale and high-power, power of the ship main engine becomes larger and larger. This make the engine design and cabin arrangement become more and more difficult. Ship maneuverability becomes bad. A new ship propulsion system, integrated hydraulic propulsion (IHP), is put forward to meet the development of modem ship. Principle of IHP system is discussed. Working condition matching characteristic of IHP ship is studied based on its matching characteristic charts. According to their propulsion principle, dynamic mathematic models of IHP ship and direct propulsion (DP) ship are developed. These two models are verified by test sailing and test stand data. Based on the software Matlab/Simulink, comparison research between IHP ship and DP ship is conducted. The results show that cabin arrangement of IHP ship is very flexible, working condition matching characteristic of IHP ship is good, the ratio of power to weight of IHP ship is larger than DP ship, and maneuverability is excellent. IHP system is suitable for engineering ship, superpower ship and warship, etc.

  10. The underlying driver for the \\civ Baldwin effect in QSOs with $0

    CERN Document Server

    Ge, Xue; Jiang, Xiao-Lei; Liu, Wen-Shuai; Wang, Xiao-Feng

    2016-01-01

    Broad emission lines is a prominent property of type I quasi-stellar objects (QSOs). The origin of the Baldwin effect for \\civ $\\lambda1549~$\\AA\\ broad emission lines, i.e., the luminosity dependence of the \\civ equivalent width (EW), is not clearly established. Using a sample of 87 low-$z$ Palomar-Green (PG) QSOs and 126 high-$z$ QSOs across the widest possible ranges of redshift ($0Baldwin effect. An empirical formula to estimate the host fraction in the continuum luminosity at 5100 \\AA\\ is presented and used in \\hb-based \\mbh calculation for low-$z$ PG QSOs. It is found that, for low-$z$ PG QSOs, the Eddington ratio has strong correlations with PC1 and PC2 from the principal component analysis, and \\civ EW has a strong correlation with the optical \\feii strength or PC1. Expanding the luminosity range with high-$z$ QSOs, it is found that ...

  11. Relaxation of selection, niche construction, and the Baldwin effect in language evolution.

    Science.gov (United States)

    Yamauchi, Hajime; Hashimoto, Takashi

    2010-01-01

    Deacon has suggested that one of the key factors of language evolution is not characterized by an increase in genetic contribution, often known as the Baldwin effect, but rather by a decrease. This process effectively increases linguistic learning capability by organizing a novel synergy of multiple lower-order functions previously irrelevant to the process of language acquisition. Deacon posits that this transition is not caused by natural selection. Rather, it is due to the relaxation of natural selection. While there are some cases in which relaxation caused by some external factors indeed induces the transition, we do not know what kind of relaxation has worked in language evolution. In this article, a genetic-algorithm-based computer simulation is used to investigate how the niche-constructing aspect of linguistic behavior may trigger the degradation of genetic predisposition related to language learning. The results show that agents initially increase their genetic predisposition for language learning—the Baldwin effect. They create a highly uniform sociolinguistic environment—a linguistic niche construction. This means that later generations constantly receive very similar inputs from adult agents, and subsequently the selective pressure to retain the genetic predisposition is relaxed.

  12. “To Crush the Serpent”: James Baldwin, the Religious Right, and the Moral Minority

    Directory of Open Access Journals (Sweden)

    Joseph Vogel

    2016-12-01

    Full Text Available In the 1980s, James Baldwin recognized that a major transformation had occurred in the socio-political functions of religion. His critique adapted accordingly, focusing on the ways in which religion—particularly white evangelical Christianity—had morphed into a movement deeply enmeshed with mass media, conservativepolitics, and late capitalism. Religion in the Reagan era was leveraged, sold, and consumed in ways never before seen, from charismatic televangelists, to Christian-themed amusement parks, to mega-churches. The new movement was often characterized as the “religious right” or the “Moral Majority” and was central to both Reagan’s political coalition as well as the broader culture wars. For Baldwin, this development had wide-ranging ramifications for society and the individual. This article draws on Baldwin’s final major essay, “To Crush the Serpent” (1987, to examine the author’s evolving thoughts on religion, salvation, and transgression in the context of the Reagan era.

  13. The shipping man adventures in ship finance

    CERN Document Server

    McCleery, Matthew

    2013-01-01

    When restless New York City hedge fund manager Robert Fairchild watches the Baltic Dry Cargo Index plunge 97%, registering an all-time high and a 25-year low within the span of just six months, he decides to buy a ship. Immediately fantasizing about naming a vessel after his wife, carrying a string of worry beads and being able to introduce himself as a "shipowner" at his upcoming college reunion, Fairchild immediately embarks on an odyssey into the most exclusive, glamorous and high stakes business in the world. From pirates off the coast of Somalia and on Wall Street to Greek and Norwegian shipping magnates, the education of Robert Fairchild is an expensive one. In the end, he loses his hedge fund, but he gains a life - as a Shipping Man. Part fast paced financial thriller, part ship finance text book, The Shipping Man is 310 pages of required reading for anyone with an interest in capital formation for shipping.

  14. Ship detection in remote sensing image based on the fuzzy fusion of multi-channel Gabor filtering%基于多通道Gabor滤波模糊融合的遥感图像舰船检测

    Institute of Scientific and Technical Information of China (English)

    肖乔; 裴继红; 王荔霞; 龚志成

    2015-01-01

    A scheme to sea background suppressing was proposed for ships detection in optical remote sensing images based on the fuzzy fusion of multi-channel Gabor filtering.First,a multi-channel Gabor filter was designed to give out-put image group.Second,three filtering enhancement evaluations were defined to get the fuzzy evaluation matrix. Third,the fuzzy comprehensive evaluations were calculated and the significant images were selected from filtered output images.Finally,the weights of the significant images were determined and the fused image was given by using weigh-ted sum of these significant images.Experimental results showed that the proposed ship detection algorithm based on fuzzy fusion of multi-channel Gabor filtering could efficiently improve the detection accuracy and significantly reduce false alarm rate.%针对海水背景对舰船目标检测的干扰问题,提出了1种基于多通道Gabor滤波模糊综合评价融合方法来抑制海水背景,增强舰船目标区域,并实现舰船目标的检测和提取。首先对图像进行多通道Gabor滤波,得到多幅滤波增强输出图像;其次,定义了3种滤波图像增强效果评价指标,并为输出图像建立模糊评价矩阵;再次,根据模糊评价矩阵计算出各输出图像的模糊综合评价值,并选出各通道滤波增强效果最优的输出图像,作为该通道的滤波输出显著图像;最后,通过各显著图像的模糊评价值,计算对应的融合权重,并对这些输出显著图像进行加权叠加融合,得到舰船目标融合增强图像并进行检测。实验结果表明,本研究提出的方法能够自适应选取具有较好背景抑制效果和舰船目标区域增强效果的Gabor滤波输出图像进行融合,融合后的图像能够有效增强舰船目标的显著性。与现有的基于多通道Gabor滤波的舰船目标检测方法相比较,本研究提出的舰船目标检测算法能够有效减少目标检测的

  15. The phosphoric acid leak from the wreck of the MV Ece in the English Channel in 2006: Assessment with a ship of opportunity, an operational ecosystem model and historical data.

    Science.gov (United States)

    Kelly-Gerreyn, Boris A; Hydes, David J; Hartman, Mark C; Siddorn, John; Hyder, Patrick; Holt, Martin W

    2007-07-01

    This study evaluates the ship of opportunity (Ferrybox) concept for both sustained monitoring of UK shelf sea waters and numerical model validation. Release of phosphate from the wreck of a chemical tanker (MV Ece) in the western English Channel (49.73 degrees N, 3.25 degrees W) in March 2006 is used to demonstrate the importance of sustained observations in decision support systems and policy development. The Ferrybox system continuously collects sea surface (5m) data from a suite of autonomous electronic sensors installed on a passenger ferry operating year-round between Portsmouth (UK) and Bilbao (Spain). The detection of anomalously high concentrations of phosphate (1.54mmolm(-3), four times the usual level) and onset of phytoplankton growth close to the wreck site in March 2006 was placed in the context of multiple years of measurements (phosphate, nitrate, silicate and chlorophyll) collected from the Ferrybox system (2003-2006) and the long-term time series station E1 (50.03 degrees N, 4.65 degrees W, 1930-1987) in the English Channel. With regard to decision support, release of phosphate from the tanker is unlikely to pose a threat as phytoplankton growth at the end of winter is not unusual in this region and dissolved inorganic nitrogen rather than phosphate (DIN:DIP=10-18) is likely to ultimately limit algal growth in spring 2006. With regard to policy development, the Oslo and Paris (OSPAR) commissions recommendation of sampling every three years in "non-problem areas" is likely to provide statistically inadequate data, given the interannual and decadal variability identified in the Ferrybox and E1 data: the Ferrybox data show that oceanic winter nutrient concentrations varied by 35-50% between 2003/2004 and 2005/2006 due to deeper mixing of water off-shelf in early 2005/2006 and comparisons between the Ferrybox and E1 years show that the western English Channel is currently experiencing a low in phosphate concentrations similar to those in the 1960s. The

  16. James Mark Baldwin on the Origins of Right- and Left-Handedness: The Story of an Experiment That Mattered.

    Science.gov (United States)

    Harris, Lauren Julius

    1986-01-01

    Reviews early theoretical and research literature on handedness and places it within the larger context of the nature-nurture controversy. Discussion focuses on Baldwin's study of the development of hand preference in infants in relation to the recapitulation theory, mental development ("dynamogenesis"), and speech development.…

  17. Recycling of merchant ships

    Directory of Open Access Journals (Sweden)

    Magdalena Klopott

    2013-12-01

    Full Text Available The article briefly outlines the issues concerning ship recycling. It highlights ships' high value as sources of steel scrap and non-ferrous metals, without omitting the fact that they also contain a range of hazardous substances. Moreover, the article also focuses on basic ship demolition methods and their environmental impact, as well as emphasizes the importance of “design for ship recycling” philosophy.

  18. I've Got a Testimony: James Baldwin and the Broken Silences of Black Queer Men

    Directory of Open Access Journals (Sweden)

    McKinley E Melton

    2016-12-01

    Full Text Available James Baldwin writes within and against the testimonial tradition emerging from the Black Church, challenging the institution’s refusal to acknowledge the voices and experiences of black queer men. Baldwin’s autobiographical novel, Go Tell It on the Mountain, creates a space for Baldwin’s testimony to be expressed, and also lays the foundation for a tradition of black queer artists to follow. In the contemporary moment, poet Danez Smith inhabits Baldwin’s legacy, offering continuing critiques of the rigidity of conservative Christian ideologies, while publishing and performing poetry that gives voice to their own experiences, and those of the black queer community at large. These testimonies ultimately function as a means of rhetorical resistance, which not only articulates black queer lives and identities, but affirms them.

  19. Channels and managing strategy for domestic ship repair enterprises to enter the intemational market%中国修船企业进入国际市场途径及经营战略之探讨

    Institute of Scientific and Technical Information of China (English)

    项立新

    2001-01-01

    With the example of Nantong Ocean Ship Engineering Co,Ltd.Thispaper gives the three periods of infiltrating the circle,orientating and brands for chinese shiprepair enterprises to enter the international market.In the first stage,changing ideas,selecting agency,market surveying,advertising ,managing model and applying of CI strategy should be the key points;In the second,a gradual advancing program should be ensured according to the comprehensive capacity of both market and enterprise itself;and in the last period,price,repair-period,safety,quality and service come into importance.This is the channel to enter the international market.%文中讨论中国修船企业进入国际修船市场需经过入围、定位和品牌三个阶段,在第一阶段应重点考虑转变观念、选择代理、市场调研、广告、管理模式及CI战略应用;在第二阶段应根据市场和本企业的综合能力,由易至难,确定渐进程序;在第三阶段应考虑价位、修理周期、安全、质量、服务等五大要点。这就是进入国际修船市场的途径,南通远洋船务工程有限公司是一个实例。

  20. Technical Practices Manual for Surface Ship Stack Design

    Science.gov (United States)

    1976-07-01

    publico releas5, Diitribution unlimted. n /___ 1J TECHNICAL PRACTICES MANUAL FOR SURFACE SIP STACK DESIGN, AVSECj R%~m,r 6136- 7-1 i /-Jul 76~\\ / Prepared...British Transport Commission for making deck, but so slowly that they can be regarded as virtually in available a cross-channel ship (ship A) on which the

  1. Houston Ship Channel 1993-1994

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Between May 5, 1993 and September 19, 1994, we collected quantitative 1-m2 area drop samples and measured a variety of habitat attributes using field surveys and...

  2. Buckling of Ship Structures

    CERN Document Server

    Shama, Mohamed

    2013-01-01

    Buckling of Ship Structures presents a comprehensive analysis of the buckling problem of ship structural members. A full analysis of the various types of loadings and stresses imposed on ship plating and primary and secondary structural members is given. The main causes and consequences of the buckling mode of failure of ship structure and the methods commonly used to control buckling failure are clarified. This book contains the main equations required to determine the critical buckling stresses for both ship plating and the primary and secondary stiffening structural members. The critical buckling stresses are given for ship plating subjected to the induced various types of loadings and having the most common boundary conditions encountered in ship structures.  The text bridges the gap existing in most books covering the subject of buckling of ship structures in the classical analytical format, by putting the emphasis on the practical methods required to ensure safety against buckling of ship structur...

  3. Crushing Strength of Ship Structures

    DEFF Research Database (Denmark)

    Cerup-Simonsen, Bo; Abramowicz, W.; Høstgaard-Brene, C.N.S.

    1999-01-01

    The crushing response of ship structures is of primary importance to the designers and practicing engineers concerned with accidental loading and accident reconstruction of marine vehicles. Ship to-ship collisions, ship-harbor infrastructure interaction or ship-offshore structure interaction are ...

  4. Discovery of a strong Baldwin effect in mid-infrared AGN lines

    CERN Document Server

    Hoenig, S F; Beckert, T; Horst, H; Duschl, W; Gandhi, P; Kishimoto, M; Weigelt, G

    2008-01-01

    We present the discovery of a Baldwin effect in 8 nearby Seyfert galaxies for the three most prominent mid-infrared forbidden emission lines observable from the ground that are commonly found in AGN, [ArIII](8.99 micron), [SIV](10.51 micron), and [NeII](12.81 micron). The observations were carried out using the VLT/VISIR imager and spectroraph at the ESO/Paranal observatory. The bulk of the observed line emission comes from the inner <0.4 arcsec which corresponds to spatial scales <100 pc in our object sample. The correlation index is approximately -0.6 without significant difference among the lines. This is the strongest anti-correlation between line equivalent width and continuum luminosity found so far. In the case of Circinus, we show that despite the use of mid-infrared lines, obscuration by either the host galaxy or the circumnuclear dust torus might affect the equivalent widths. Given the small observed spatial scales from which most of the line emission emanates, it is unclear how these observat...

  5. “Speaking Out of the Most Passionate Love” – James Baldwin and Pragmatism

    Directory of Open Access Journals (Sweden)

    Ulf Schulenberg

    2007-11-01

    Full Text Available This article seeks to contribute to a discussion of pragmatism’s political impulses. It concentrates on the hitherto somewhat neglected question of pragmatism and race. In order to elucidate one possibility of approaching this complex question, the article discusses James Baldwin’s essays. It is argued that Baldwin’s essays can be used to show the significance of a middle ground between Cornel West’s prophetic pragmatism and Richard Rorty’s liberal version of neopragmatism. While the first part analyzes West’s prophetic and worldly pragmatism, the second part seeks to illuminate Rorty’s notion of a pragmatist literary or poeticized culture. The final part demonstrates that while it would be pointless to claim that Baldwin is a radically postmetaphysical author and thus an ideal member of a literary culture, his politicized version of self-creation makes it seem legitimate to advance the argument that he is part of a left-liberal tradition of worldly pragmatism that sees the work of the strong poet or creative redescriber as contributing to political and social change.

  6. Baldwin Effect and Additional BLR Component in AGN with Superluminal Jets

    Directory of Open Access Journals (Sweden)

    Víctor Manuel Patiño Álvarez

    2016-06-01

    Full Text Available We study the Baldwin Effect (BE in 96 core-jet blazars with optical and ultraviolet spectroscopic data from a radio-loud AGN sample obtained from the MOJAVE 2cm survey. A statistical analysis is presented of the equivalent widths W_lambda of emission lines H beta 4861, Mg II 2798, C IV 1549, and continuum luminosities at 5100, 3000, and 1350 angstroms. The BE is found statistically significant (with confidence level c.l. > 95% in H beta and C IV emission lines, while for Mg II the trend is slightly less significant (c.l. = 94.5%. The slopes of the BE in the studied samples for H beta and Mg II are found steeper and with statistically significant difference than those of a comparison radio-quiet sample. We present simulations of the expected BE slopes produced by the contribution to the total continuum of the non-thermal boosted emission from the relativistic jet, and by variability of the continuum components. We find that the slopes of the BE between radio-quiet and radio-loud AGN should not be different, under the assumption that the broad line is only being emitted by the canonical broad line region around the black hole. We discuss that the BE slope steepening in radio AGN is due to a jet associated broad-line region.

  7. Baldwin Effect and Additional BLR Component in AGN with Superluminal Jets

    Science.gov (United States)

    Patiño Álvarez, Víctor; Torrealba, Janet; Chavushyan, Vahram; Cruz González, Irene; Arshakian, Tigran; León Tavares, Jonathan; Popovic, Luka

    2016-06-01

    We study the Baldwin Effect (BE) in 96 core-jet blazars with optical and ultraviolet spectroscopic data from a radio-loud AGN sample obtained from the MOJAVE 2cm survey. A statistical analysis is presented of the equivalent widths W_lambda of emission lines H beta 4861, Mg II 2798, C IV 1549, and continuum luminosities at 5100, 3000, and 1350 angstroms. The BE is found statistically significant (with confidence level c.l. > 95%) in H beta and C IV emission lines, while for Mg II the trend is slightly less significant (c.l. = 94.5%). The slopes of the BE in the studied samples for H beta and Mg II are found steeper and with statistically significant difference than those of a comparison radio-quiet sample. We present simulations of the expected BE slopes produced by the contribution to the total continuum of the non-thermal boosted emission from the relativistic jet, and by variability of the continuum components. We find that the slopes of the BE between radio-quiet and radio-loud AGN should not be different, under the assumption that the broad line is only being emitted by the canonical broad line region around the black hole. We discuss that the BE slope steepening in radio AGN is due to a jet associated broad-line region.

  8. Optimization in liner shipping

    DEFF Research Database (Denmark)

    Brouer, Berit Dangaard; Karsten, Christian Vad; Pisinger, David

    2017-01-01

    Seaborne trade is the lynchpin in almost every international supply chain, and about 90% of non-bulk cargo worldwide is transported by container. In this survey we give an overview of data-driven optimization problems in liner shipping. Research in liner shipping is motivated by a need for handling...... research....

  9. Shipping Information Pipeline

    DEFF Research Database (Denmark)

    Jensen, Thomas; Vatrapu, Ravi

    2015-01-01

    This paper presents a design science approach to solving persistent problems in the international shipping eco system by creating the missing common information infrastructures. Specifically, this paper reports on an ongoing dialogue between stakeholders in the shipping industry and information s...... impacts on global trade and local economies....

  10. 港珠澳大桥青州航道桥工程特点及关键技术%Engineering Characteristics and Key Techniques of Qingzhou Ship Channel Bridge of Hong Kong-Zhuhai-Macao Bridge

    Institute of Scientific and Technical Information of China (English)

    刘明虎; 孟凡超; 李国亮

    2013-01-01

    The Qingzhou Ship Channel Bridge of the Hong Kong-Zhuhai-Macao Bridge is a steel box girder cable-stayed bridge with double pylons and double cable planes.In the design of the bridge,a variety of the new materials,new techniques and new workmanships have been applied.In this paper,the engineering characteristics and key techniques of the bridge are summarized.On the bridge,the steel box girders of the same structural types of the adjacent non-navigable span bridges are fully used as the counterweight and on the outer side spans of the bridge,the stay cables are not installed.The arrangement of the bridge in such a way is well appropriate to the local conditions of the bridge site and has notable comprehensive advantage.The structural support system of the bridge is the three-way system that can ensure the structural performance of the whole bridge to be optimal.The pylons have the crisscross steel struts of the “Chinese Knot” configuration,which are connected with the concrete pylon columns via the connecting boxes in a combined force transmitting mode of “ compression-shear” and the performance of the steel struts and connection is safe and reliable.The foundations for the bridge are the composite piles of variable diameter steel pipes and together with the reinforced concrete in the steel pipes,the composite sections of the piles that are to jointly bear the loads and are cost-saving and rational are formed.The pier shafts are formed by the precast segments.The segments are installed at the site and are connected each other by the φ75 mm thick prestressing bars.The steel box girders are of the optimized streamlined flat sections topped with the orthotropic steel deck plates and the fatigue performance of the girders are quite superior.The stay cables are the ones made up of the parallel steel wires and having tensile strength of 1 860 MPa.%港珠澳大桥青州航道桥为双塔双索面钢箱梁斜拉桥,该桥设计采用了多项新材料、新技术

  11. Towards Real Time Simulation of Ship-Ship Interaction

    DEFF Research Database (Denmark)

    Lindberg, Ole; Bingham, Harry B.; Engsig-Karup, Allan Peter

    2012-01-01

    We present recent and preliminary work directed towards the development of a simplified, physics-based model for improved simulation of ship-ship interaction that can be used for both analysis and real-time computing (i.e. with real-time constraints due to visualization). The goal is to implement...... accurate (realistic) and much faster ship-wave and ship-ship simulations than are currently possible. The coupling of simulation with visualization should improve the visual experience such that it can be perceived as more realistic in training. Today the state-of-art in real-time ship-ship interaction...

  12. Ship construction and welding

    CERN Document Server

    Mandal, Nisith R

    2017-01-01

    This book addresses various aspects of ship construction, from ship types and construction materials, to welding technologies and accuracy control. The contents of the book are logically organized and divided into twenty-one chapters. The book covers structural arrangement with longitudinal and transverse framing systems based on the service load, and explains basic structural elements like hatch side girders, hatch end beams, stringers, etc. along with structural subassemblies like floors, bulkheads, inner bottom, decks and shells. It presents in detail double bottom construction, wing tanks & duct keels, fore & aft end structures, etc., together with necessary illustrations. The midship sections of various ship types are introduced, together with structural continuity and alignment in ship structures. With regard to construction materials, the book discusses steel, aluminum alloys and fiber reinforced composites. Various methods of steel material preparation are discussed, and plate cutting and form...

  13. Plastic Pollution from Ships

    OpenAIRE

    Čulin, Jelena; Bielić, Toni

    2016-01-01

    The environmental impact of shipping on marine environment includes discharge of garbage. Plastic litter is of particular concern due to abundance, resistance to degradation and detrimental effect on marine biota. According to recently published studies, a further research is required to assess human health risk. Monitoring data indicate that despite banning plastic disposal at sea, shipping is still a source of plastic pollution. Some of the measures to combat the problem are discussed.

  14. SHIPPING REQUESTS ON EDH

    CERN Multimedia

    Logistics Group

    2001-01-01

    Users are informed that as from 1 September 2001 all Shipping Requests must be made on EDH using the appropriate electronic form. The submission of user requests directly into EDH will help rationalise the activities of the Shipping Service (Import & Export), with requests being automatically forwarded to hierarchical supervisors thereby improving the processing speed and facilitating the follow-up. Thank you for your collaboration.

  15. Ship bow waves

    Institute of Scientific and Technical Information of China (English)

    NOBLESSE Francis; DELHOMMEAU Gerard; LIU Hua; WAN De-cheng; YANG Chi

    2013-01-01

    The bow wave generated by a ship hull that advances at constant speed in calm water is considered.The bow wave only depends on the shape of the ship bow (not on the hull geometry aft of the bow wave).This basic property makes it possible to determine the bow waves generated by a canonical family of ship bows defined in terms of relatively few parameters.Fast ships with fine bows generate overturning bow waves that consist of detached thin sheets of water,which are mostly steady until they hit the main free surface and undergo turbulent breaking up and diffusion.However,slow ships with blunt bows create highly unsteady and turbulent breaking bow waves.These two alternative flow regimes are due to a nonlinear constraint related to the Bernoulli relation at the free surface.Recent results about the overturning and breaking bow wave regimes,and the boundary that divides these two basic flow regimes,are reviewed.Questions and conjectures about the energy of breaking ship bow waves,and free-surface effects on flow circulation,are also noted.

  16. Outer Dynamics of Ship Collisions

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup

    1996-01-01

    The purpose is to present analysis procedures for the motion of ships during ship-ship collisions and for ship collisions with offshore structures. The aim is to estimate that part of the lost kinetic energy which will have to be absorbed by rupture and plastic damage of the colliding structures....

  17. Outer Dynamics of Ship Collisions

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup

    1996-01-01

    The purpose of these notes is to present analysis procedures for the motion of ships during ship-ship collisions and for ship collisons with offshore structures. The aim is to estimate that part of the lost kinetic energy which will have to be absorbed by rupture and plastic damage of the collidi...

  18. SOME PROBLEMS ABOUT SHIP WAVES

    Institute of Scientific and Technical Information of China (English)

    Liu Min-jia

    2003-01-01

    Several problems about ship waves were discussed in the dissertation:(1) Transient ship waves from calmness to the generation of steady-state ship waves were described. (2) The procedure of the formation of the V-shaped steady-state ship waves were clearly shown, and the difference of ship waves on an inviscid fluid and on a viscous fluid was exmined. (3) With the Lighthill two-stage scheme, the algebraic expression for ship waves on a viscous fluid of finite depth was obtained.(4) Singularity on the two boundaries of the ship waves was treated.

  19. Dark matter at the SHiP experiment

    Directory of Open Access Journals (Sweden)

    Timiryasov Inar

    2016-01-01

    Full Text Available We study prospects of dark matter searches in the SHiP experiment. SHiP (Search for Hidden Particles is the recently proposed fixed target experiment which will exploit the high-intensity beam of 400 GeV protons from the CERN SPS. In addition to the hidden sector detector, SHiP will be equipped with the ντ detector, which presumably would be sensitive to dark matter particles. We describe appropriate production and detection channels and estimate SHiP’s sensitivity for a scalar dark matter coupled to the Standard model through the vector mediator.

  20. Accidents in nuclear ships

    Energy Technology Data Exchange (ETDEWEB)

    Oelgaard, P.L. [Risoe National Lab., Roskilde (Denmark)]|[Technical Univ. of Denmark, Lyngby (Denmark)

    1996-12-01

    This report starts with a discussion of the types of nuclear vessels accidents, in particular accidents which involve the nuclear propulsion systems. Next available information on 61 reported nuclear ship events in considered. Of these 6 deals with U.S. ships, 54 with USSR ships and 1 with a French ship. The ships are in almost all cases nuclear submarines. Only events that involve the sinking of vessels, the nuclear propulsion plants, radiation exposures, fires/explosions, sea-water leaks into the submarines and sinking of vessels are considered. For each event a summary of available information is presented, and comments are added. In some cases the available information is not credible, and these events are neglected. This reduces the number of events to 5 U.S. events, 35 USSR/Russian events and 1 French event. A comparison is made between the reported Soviet accidents and information available on dumped and damaged Soviet naval reactors. It seems possible to obtain good correlation between the two types of events. An analysis is made of the accident and estimates are made of the accident probabilities which are found to be of the order of 10{sup -3} per ship reactor years. It if finally pointed out that the consequences of nuclear ship accidents are fairly local and does in no way not approach the magnitude of the Chernobyl accident. It is emphasized that some of the information on which this report is based, may not be correct. Consequently some of the results of the assessments made may not be correct. (au).

  1. Learning and the evolution of language: the role of cultural variation and learning costs in the Baldwin effect.

    Science.gov (United States)

    Munroe, Steve; Cangelosi, Angelo

    2002-01-01

    The Baldwin effect has been explicitly used by Pinker and Bloom as an explanation of the origins of language and the evolution of a language acquisition device. This article presents new simulations of an artificial life model for the evolution of compositional languages. It specifically addresses the role of cultural variation and of learning costs in the Baldwin effect for the evolution of language. Results show that when a high cost is associated with language learning, agents gradually assimilate in their genome some explicit features (e.g., lexical properties) of the specific language they are exposed to. When the structure of the language is allowed to vary through cultural transmission, Baldwinian processes cause, instead, the assimilation of a predisposition to learn, rather than any structural properties associated with a specific language. The analysis of the mechanisms underlying such a predisposition in terms of categorical perception supports Deacon's hypothesis regarding the Baldwinian inheritance of general underlying cognitive capabilities that serve language acquisition. This is in opposition to the thesis that argues for assimilation of structural properties needed for the specification of a full-blown language acquisition device.

  2. The Blueshifting and Baldwin effects for the [OIII] 5007 Emission Line in Type 1 Active Galactic Nuclei

    CERN Document Server

    Zhang, Kai; Wang, Ting-Gui; Gaskell, C Martin

    2011-01-01

    We use homogeneous samples of radio-quiet Seyfert 1 galaxies and QSOs selected from the Sloan Digital Sky Survey to investigate the connection between the velocity shift and the equivalent width (EW) of the [OIII] 5007 emission line, and their correlations with physical parameters of active galactic nuclei (AGNs). We find a fairly strong and negative correlation between the EW of the core component, EW(core), and the blueshift of either the core (the peak), the wing, or the total profile of [OIII] emission. However, both quantities (EW and velocity shift) have only weak, if any, correlations with fundamental AGN parameters such as the nuclear continuum luminosity at 5100 \\AA\\ ($L_{5100}$), black hole mass (M_{bh}), and the Eddington ratio (L/L_{Edd}); these weak correlations include the classical Baldwin effect of EW(core), an inverse Baldwin effect of EW(wing), and the relationship between velocity shifts and L/L_{Edd}. Our findings suggest that both the large object-to-object variation in the strength of [O...

  3. Performance Monitoring of Ships

    DEFF Research Database (Denmark)

    Hansen, Søren Vinther

    to the environment. The monitoring of the ship’s performance can be used as decision support in determining when actions to improve performance should be taken. The performance evaluation is based on a model of the ship and the added resistance from wind and waves during operation. Logged data on board the ship...... in the models have been identified. The models used in this work are based on empirical relations or based on regression analyses of model tests and full-scale trials. In order to achieve valid results the conditions where performance is estimated have to be inside the boundaries of the model. Filters have been...... determined to establish cases where the ship is in steady state conditions and where these conditions are inside the boundaries of the const raints of the model. Several indexes have been used in the evaluation. Two indexes relate to the ship’s logged speed and one relates to the measured torque...

  4. Hydrodynamics of Ship Propellers

    DEFF Research Database (Denmark)

    Breslin, John P.; Andersen, Poul

    This book deals with flows over propellers operating behind ships, and the hydrodynamic forces and moments which the propeller generates on the shaft and on the ship hull.The first part of the text is devoted to fundamentals of the flow about hydrofoil sections (with and without cavitation...... arising from operation in non-uniform hull wakes. First, by a number of simplifications, various aspects of the problem are dealt with separately until the full problem of a non-cavitating, wide-bladed propeller in a wake is treated by a new and completely developed theory. Next, the complicated problem...... of an intermittently cavitating propeller in a wake and the pressures and forces it exerts on the shaft and on the ship hull is examined. A final chapter discusses the optimization of efficiency of compound propulsors. The authors have taken care to clearly describe physical concepts and mathematical steps. Appendices...

  5. Baldwin Spencer and Classical Anthropology in the Post-Victorian Era

    Institute of Scientific and Technical Information of China (English)

    Wang Hongyu

    2016-01-01

    The post-Victorian anthropologist Baldwin Spencer was the first to investigate the central and northern aboriginal tribes of Australia. His ethnographic works in this area have greatly in-fluenced related disciplines and studies in fields such as kinship, totem worship, and primitive reli-gions. In the field of classics and anthropology, Spencer’s academic heritage has received wide-spread respect and recognition, and has made sub-sequent academic discussion possible. In order to present Spencer’s personal experiences and aca-demic ideas clearly and comprehensively, it is nec-essary to return to the post-Victorian context, and comb Spencer’ s life history and academic history. Taking important clues from various times an e-vents in his life, the paper introduces three peri-ods:Spencer’s early training in the discipline and his epistemic background, his medium-term eth-nographic investigations and works, and the later investigations of Tierra del Fuego. Textual study, based on Spencer’s life history and academic histo-ry, is very useful to understand his ethnographic investigations. Sir Walter Baldwin Spencer ( 1860 -1929 ) was born on 23 June, 1860 in Lancashire, Eng-land. Spencer was educated at Old Trafford School and at the Manchester School of Art. His interest in art and sketching was lifelong, and would reveal itself in his competence as a scientific draftsman and illustrator ( D. J. Mulvaney,1990 ) . Entering Owens College ( Victoria University of Manchester) in 1879, Spencer intended to study medicine. In-spired by Milnes Marshall, a disciple of Darwin disciple, he became a committed evolutionary biol-ogist, soon abandoning conventional religion. He entered the University of Oxford in 1881 to study science under Professor H. N. Moseley, who com-bined an enthusiasm for evolutionary biology with ethnological interests. Spencer grasped Oxford ’ s diverse opportunities, which included lectures by Ruskin and E. B. Tylor. In 1887, Spencer ar-rived at

  6. Liner Shipping Fleet Repositioning

    DEFF Research Database (Denmark)

    Tierney, Kevin; Jensen, Rune Møller

    2011-01-01

    , can be accurately modeled. Numerous liner shipping fleet repositioning problems are solved each year by the world’s shipping firms without the assistance of any decision support, even though humans can require between two to three days to find a reasonable solution. Finding optimal repositionings...... to complex handling and timing restrictions. The objective of the problem is cost minimization, which translates nearly directly into the minimization of CO2 emissions and pollution. Additionally, it is important that all cost elements, including the ones that are only loosely coupled with activity choices...

  7. Shipping emissions in ports

    OpenAIRE

    2014-01-01

    Shipping emissions in ports are substantial, accounting for 18 million tonnes of CO2 emissions, 0.4 million tonnes of NOx, 0.2 million of SOx and 0.03 million tonnes of PM10 in 2011. Around 85% of emissions come from containerships and tankers. Containerships have short port stays, but high emissions during these stays. Most of CO2 emissions in ports from shipping are in Asia and Europe (58%), but this share is low compared to their share of port calls (70%). European ports have much less emi...

  8. Predicting Ship Fuel Consumption: Update.

    Science.gov (United States)

    1996-07-01

    ship propulsion fuel consumption as a function of ship speed for U.S. Navy combatant and auxiliary ships. Prediction is based on fitting an analytic function to published ship class speed-fuel use data using nonlinear regression. The form of the analytic function fitted is motivated by the literature on ship powering and resistance. The report discusses data sources and data issues, and the impact of ship propulsion plant configuration on fuel use. The regression coefficients of the exponential function fitted, tabular numerical comparison of

  9. 长洲水利枢纽三线四线船闸上游引航道渥庙河排水渠设计%Design of Wumiaohe Drainage Canal for Upstream Approach Channel of No.3 and No. 4 Ship Locks of Changzhou Hydro-complex

    Institute of Scientific and Technical Information of China (English)

    龙少江; 高松杰; 杨红玉

    2014-01-01

    ∶上游引航道渥庙河排水渠通过排水渠潜孔结构和水力学设计方法,将渥庙河来流量排入上游引航道底部的同时,很好地满足了引航道内船舶、船队航行和停泊的安全要求。排水渠施工时采用预留土堤作为围堰挡水,施工简便,施工进度快。此外,相对于其它远引排泄方案,此排水渠设计方案大大减少了征地与结构工程费用。%Wumiaohe drainage canal of upstream approach channel diverts the inflows to the bottom of approach channel through the down-hole drainage canal structure and the hydraulics design methods, which well satisfies the safety requirements on ship or fleet sailing and berthing in the approach channel. Taking the reserved earth dike as the cofferdam, during the construction of the drainage cannel, greatly speeds up the construction progress and simpli-fies the construction procedures. In addition, this drainage canal, compared to other diversion schemes, greatly re-duces the cost on land acquisition and structure projects.

  10. Engaging the Demons. Report on a Collaboration between English Faculty of Baldwin High School and Georgia College & State University, Milledgeville, Georgia: 2001-02.

    Science.gov (United States)

    Carriere, Peter M.; Smith, Melissa

    A collaborative project between Georgia College and State University (GC&SU) and Baldwin High School (BHS) in Milledgeville, Georgia, had as its initial goals: to provide an opportunity for two-way mentoring between the GC&SU's Arts and Sciences faculty and BHS's English faculty; to improve curriculum alignment; to establish realistic…

  11. Littoral Combat Ship (LCS)

    Science.gov (United States)

    2015-12-01

    Defense Switched Network EMD - Engineering and Manufacturing Development EVM - Earned Value Management FOC - Full Operational Capability FMS - Foreign...responses to small boat threats, mine laying and quiet diesel submarines. LCS employment of networked sensors for Intelligence, Surveillance, and...Flight 0 ships in addition to the program development, test and evaluation, training development, and sustained engineering for both LCS and Frigate

  12. SHIPPING OF RADIOACTIVE ITEMS

    CERN Multimedia

    TIS/RP Group

    2001-01-01

    The TIS-RP group informs users that shipping of small radioactive items is normally guaranteed within 24 hours from the time the material is handed in at the TIS-RP service. This time is imposed by the necessary procedures (identification of the radionuclides, determination of dose rate and massive objects require a longer procedure and will therefore take longer.

  13. Moving Sustainable Shipping Forward

    NARCIS (Netherlands)

    Leeuwen, van J.; Koppen, van C.S.A.

    2016-01-01

    The International Maritime Organization (IMO) is considering adopting marketbased mechanisms (MBMs) to reduce fuel consumption by commercial shipping. This paper explores the potential effectiveness of these MBMs. How companies respond to economic stimuli generated by MBMs depends on the kind of env

  14. Research on the Status Quo and Countermeasures of Energy Saving and Emission Reduction of the Shipping Channel%航道船舶节能减排现状及对策探究

    Institute of Scientific and Technical Information of China (English)

    宋继洲

    2015-01-01

    交通运输行业作为耗能高的行业,成为了国家开展节能减排工作的重点行业。如何实现船舶节能降耗、提高装备经济性、减少废气排放已成为当前的一个重要课题。介绍了航道系统船舶节能减排工作的现状及存在的问题,分析、探究了船舶节能减排的有效途径,并提出了相关对策与建议。%The transportation industry as energy consuming industries has become the country to carry out energy-saving emission reduction work of key industries. How to realize the energy saving and reducing consumption, improve the economy and reduce the emissions of the equipment’s have become an important issue. This paper introduces the present situation and existing problems of the ship energy saving and emission reduction in the navigation system, analyzes and explores the effective way of the ship energy saving and emission reduction, and puts forward the relevant countermeasures and suggestions.

  15. Performance Comparative Study in Dual-Distribution Channel Drop Shipping Supply Chain Based on Different Dominant Positions%不同主导权位置情况下零售商双渠道策略的绩效对比研究

    Institute of Scientific and Technical Information of China (English)

    赵金实; 段永瑞; 王世进; 霍佳震

    2013-01-01

    It is a common practice for retailers to develop multiple channels to serve different customers. The retailers are competing for market dominance in many industries such as appliance and fast moving consumer goods. Internet shopping and drop shipping are two new trends in the retailing industry. This paper proposes that commitment contracts be established for both supplier-led and retailer-led supply chains from the perspective of supply chain management. In the supplier-led supply chain, if the retailer's order quantity achieves centralized level the profit of the supply chain can be maximized. In the retailer-led supply chain, the retailer can inspire the supplier to achieve optimal production quantity. The profit of a supply chain can also be maximized. We contrast two kinds of dominant positions and their corresponding solutions. Drop-shipping is a commonly adopted order fulfillment strategy for retailer's online distribution channel or part store-based channel. Because of the coexistence of store-based distribution network and web site distribution network, the retailer needs to prepare two kinds of inventories, its own inventory and the drop-shipping inventory. In addition to different dominant positions, the relationship between the retailer and the supplier becomes more complicated than before. We consider a supply chain in which a supplier sells a product to a retailer. The retailer uses both physical stores and online channels to reach their final consumers. We research two kinds of supply chain structures; supplier-led supply chain and retailer-led supply chain. In the supplier-led supply chain, the supplier acts as the leader and the retailer as the follower. The supplier decides commitment fee and wholesale price of drop shipping to optimize profit for itself and the whole supply chain. The retailer only decides the order quantity for its own inventory and drop shipping inventory. The supplier produces according to the order quantity of retailer. In

  16. Travelers' Health: Cruise Ship Travel

    Science.gov (United States)

    ... Water Disinfection Infographics for Travelers MERS Health Advisory poster Food and Water: What's Safer Health Advisory: MERS ... cruise ships can vary widely depending on ship size, itinerary, length of cruise, and passenger demographics. Generally, ...

  17. Ship Observations - VOS and Navy

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Combination of Voluntary Observing Ship (VOS) and US Navy Ship weather observations. Obs generally taken 2-4 times daily at 00, 06, 12, and 18z.

  18. Ageing of ships, LPG tankers

    OpenAIRE

    Ask, Martin

    2015-01-01

    During the last decades there have been several major ship accidents, and it is believed that old ships are more unsafe than newer ships. To get a better understanding of this phenomenon the thesis is investigating different issues with ship ageing. This thesis consists of a general description of the most important ageing issues, and the condition of sea water ballast tanks is identified as one of the most critical issue regarded to ageing on LPG-tankers. This investigation consists of...

  19. Ship Infrared Detection/Vulnerability

    NARCIS (Netherlands)

    Jong, A.N. de

    1993-01-01

    The IR contrast of ships at sea is of importance for those who want to detect or identify the ship and for those who worry about this. This IR contrast is determined by a large number of parameters. Of course temperatures of the ship's structure and those of the ambient sea and air are important, bu

  20. The US Cruise Ship Industry.

    Science.gov (United States)

    Miller, Willis H.

    1985-01-01

    The cruise ship industry relates directly to many features of the natural and cultural environments. The U.S. cruise ship industry is analyzed. Discusses the size of the industry, precruise passenger liners, current cruise ships, cruise regions and routes, ports of call, major ports, passengers, and future prospects. (RM)

  1. “I’m Trying to be as Honest as I Can:” An Interview with James Baldwin (1969

    Directory of Open Access Journals (Sweden)

    Rich Blint

    2015-09-01

    Full Text Available This is the first English language publication of an interview with James Baldwin (1924–87 conducted by Nazar Büyüm in 1969, Istanbul, Turkey. Deemed too long for conventional publication at the time, the interview re-emerged last year and reveals Baldwin’s attitudes about his literary antecedents and influences such as Richard Wright, Langston Hughes, and Countee Cullen; his views concerning the “roles” and “duties” of a writer; his assessment of his critics; his analysis of the power and message of the Nation of Islam; his lament about the corpses that are much of the history and fact of American life; an honest examination of the relationship of poor whites to American blacks; an interrogation of the “sickness” that characterizes Americans’ commitment to the fiction and mythology of “race,” as well as the perils and seductive nature of American power.

  2. “But Amen is the Price:” James Baldwin and Ray Charles in “The Hallelujah Chorus”

    Directory of Open Access Journals (Sweden)

    Ed Pavlić

    2015-09-01

    Full Text Available Based on a recent, archival discovery of the script, “But Amen is the Price” is the first substantive writing about James Baldwin’s collaboration with Ray Charles, Cicely Tyson, and others in a performance of musical and dramatic pieces. Titled by Baldwin, “The Hallelujah Chorus” was performed in two shows at Carnegie Hall in New York City on 1 July 1973. The essay explores how the script and presentation of the material, at least in Baldwin’s mind, represented a call for people to more fully involve themselves in their own and in each other’s lives. In lyrical interludes and dramatic excerpts from his classic work, “Sonny’s Blues,” Baldwin addressed divisions between neighbors, brothers, and strangers, as well as people’s dissociations from themselves in contemporary American life. In solo and ensemble songs, both instrumental and vocal, Ray Charles’s music evinced an alternative to the tradition of Americans’ evasion of each other. Charles’s sound meant to signify the history and possibility of people’s attainment of presence in intimate, social, and political venues of experience. After situating the performance in Baldwin’s personal life and public worldview at the time and detailing the structure and content of the performance itself, “But Amen is the Price” discusses the largely negative critical response as a symptom faced by much of Baldwin’s other work during the era, responses that attempted to guard “aesthetics” generally—be they literary, dramatic, or musical—as class-blind, race-neutral, and apolitical. The essay presents “The Hallelujah Chorus” as a key moment in Baldwin’s search for a musical/literary form, a way to address, as he put it, “the person and the people,” in open contention with the social and political pressures of the time.

  3. Hospital Ship Replacement

    Science.gov (United States)

    2011-08-01

    CBRNE Chemical, Biological, Radiological, Nuclear, Explosive CISD Center for Innovation in Ship Design EPA Environmental...18.3 MW Power & Propulsion 2 x boilers, 2 x steam turbines, single shaft Accommodations 1,000 Patients, 61 Civilian, 1,214 Military Naval...combination of a blue water reverse osmosis system and a coastal “ultra filtration” pretreatment system. Combined, this system will desalinate and

  4. SHIPPING OF RADIOACTIVE ITEMS

    CERN Multimedia

    TIS/RP Group

    2001-01-01

    The TIS-RP group informs users that shipping of small radioactive items is normally guaranteed within 24 hours from the time the material is handed in at the TIS-RP service. This time is imposed by the necessary procedures (identification of the radionuclides, determination of dose rate, preparation of the package and related paperwork). Large and massive objects require a longer procedure and will therefore take longer.

  5. Mechanics of Ship Grounding

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup

    1996-01-01

    In these notes first a simplified mathematical model is presented for analysis of ship hull loading due to grounding on relatively hard and plane sand, clay or rock sea bottoms. In a second section a more rational calculation model is described for the sea bed soil reaction forces on the sea bottom....... Finally, overall hull failure is considered first applying a quasistatic analysis model and thereafter a full dynamic model....

  6. Shipping lines and logistics

    OpenAIRE

    FREMONT, A

    2006-01-01

    For some time it has been acknowledged that logistics is a driving force that shapes the integration of the transport chain. This paper argues that while the liner shipping industry exhibits increased horizontal integration, its vertical integration remains limited. A clear distinction is drawn between freight logistics, container logistics and vessel logistics. Freight logistics is defined as part of the supply chain process, the focus of which are the goods being transported. The purpose of...

  7. Transformable Heavy Lift Ship

    Science.gov (United States)

    2007-08-01

    the 500 group include climate control, freshwater/seawater systems, mechanical handling, and special purpose systems. Due to the large troop...compliment carried on the JHSS, large amounts of climate control and ventilation were required. The transformable heavy lift ship has only a single... Treeline Connector Innovation Cell Naval Research Enterprise Intern Program Final Report, NSWCCD-20-TR-2005/05 August 2005 "Saturn." Nijhuis

  8. A Model of Ship Auxiliary System for Reliable Ship Propulsion

    OpenAIRE

    Dragan Martinović; Mato Tudor; Dean Bernečić

    2012-01-01

    The main purpose of a vessel is to transport goods and passengers at minimum cost. Out of the analysis of relevant global databases on ship machinery failures, it is obvious that the most frequent failures occur precisely on the generator-running diesel engines. Any failure in the electrical system can leave the ship without propulsion, even if the main engine is working properly. In that case, the consequences could be devastating: higher running expenses, damage to the ship, oil spill or su...

  9. Ship Emission Inventories in Estuary of the Yangtze River Using Terrestrial AIS Data

    Directory of Open Access Journals (Sweden)

    Xin Yao

    2016-12-01

    Full Text Available Estuary forms a transition zone between inland river and open sea. In China, the estuary of the Yangtze River plays a vital role in connecting the inland and oversea shipping, and witnesses heavy vessel traffic in the recent decades. Nowadays, more attentions have been directed to the issue of ship pollution in busy waterways. In order to investigate the ship emission inventory, this paper presents an Automatic Identification System(AIS based method. AIS data is the realistic data of vessel traffic including dynamic information (position, speed, course, etc. and static information (ship type, dimensions, name, etc.. According to ship dimensions, the power of engines is estimated for different ship types. By using AIS based bottom-up approach, ship emission inventories and shares of air pollutants and GHGs (Greenhouse gases are developed. Spatial distribution of ship emissions is illustrated in the form of heat map. As a case study, the emission inventories are analyzed using AIS data of 2010 in the estuary, and following results are made:(1 shares of the emission are cruise ships 6.59%, bulk carriers 5.16%, container ships 52.96%, tankers 15.16%, fishing ships 9.16%, other ships 10.97%; (2 CO2 is the dominant part of the emission. (3 Areas of highest emission intensity are generally clustered around the South Channel, the North Channel and ports in the vicinity. The proposed method is promising because it is derived from the AIS data which contains not only real data of individual ship but also vessel traffic situation in the study area. It can server as a reference for other researchers and policy makers working in this field.

  10. Assessing the risk of ships striking large whales in marine spatial planning.

    Science.gov (United States)

    Redfern, J V; McKenna, M F; Moore, T J; Calambokidis, J; Deangelis, M L; Becker, E A; Barlow, J; Forney, K A; Fiedler, P C; Chivers, S J

    2013-04-01

    Marine spatial planning provides a comprehensive framework for managing multiple uses of the marine environment and has the potential to minimize environmental impacts and reduce conflicts among users. Spatially explicit assessments of the risks to key marine species from human activities are a requirement of marine spatial planning. We assessed the risk of ships striking humpback (Megaptera novaeangliae), blue (Balaenoptera musculus), and fin (Balaenoptera physalus) whales in alternative shipping routes derived from patterns of shipping traffic off Southern California (U.S.A.). Specifically, we developed whale-habitat models and assumed ship-strike risk for the alternative shipping routes was proportional to the number of whales predicted by the models to occur within each route. This definition of risk assumes all ships travel within a single route. We also calculated risk assuming ships travel via multiple routes. We estimated the potential for conflict between shipping and other uses (military training and fishing) due to overlap with the routes. We also estimated the overlap between shipping routes and protected areas. The route with the lowest risk for humpback whales had the highest risk for fin whales and vice versa. Risk to both species may be ameliorated by creating a new route south of the northern Channel Islands and spreading traffic between this new route and the existing route in the Santa Barbara Channel. Creating a longer route may reduce the overlap between shipping and other uses by concentrating shipping traffic. Blue whales are distributed more evenly across our study area than humpback and fin whales; thus, risk could not be ameliorated by concentrating shipping traffic in any of the routes we considered. Reducing ship-strike risk for blue whales may be necessary because our estimate of the potential number of strikes suggests that they are likely to exceed allowable levels of anthropogenic impacts established under U.S. laws.

  11. Ship Roll Motion Control

    DEFF Research Database (Denmark)

    Perez, Tristan; Blanke, Mogens

    2010-01-01

    The technical feasibility of roll motion control devices has been amply demonstrated for over 100 years. Performance, however, can still fall short of expectations because of deciencies in control system designs, which have proven to be far from trivial due to fundamental performance limitations....... This tutorial paper presents an account of the development of various ship roll motion control systems and the challenges associated with their design. The paper discusses how to assess performance, the applicability of dierent models, and control methods that have been applied in the past....

  12. Effective and Safe Ships

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup; Amdahl, Jørgen; Rutgersson, Olle;

    1996-01-01

    are described. The areas of safety that are presented are collisions, groundings, cargo shifting and ship fire. The areas of lack of knowledge are identified and the tasks within each subproject suggested. The proposal for the main project is presented in the summary. Background material of the state-of-the art...... is given in the appendices. The project is planned to take three years from the start. There are 28 tasks and the total volume is 18 personyears, or 6.3 MFIM. A scientific approach will be used in performing the tasks and some of them may be subjects for post graduate studies. A close co-operation between...

  13. Operational Options for Green Ships

    Institute of Scientific and Technical Information of China (English)

    Salma Sherbaz; Wenyang Duan

    2012-01-01

    Environmental issues and rising fuel prices necessitate better energy-efficiency in all sectors.The shipping industry is one of the major stakeholders,responsible for 3% of global CO2 emissions,14%-15% of global NOx emissions,and 16% of global SOx emissions.In addition,continuously rising fuel prices are also an incentive to focus on new ways for better energy-effectiveness.The green ship concept requires exploring and implementing technology on ships to increase energy-efficiency and reduce emissions.Ship operation is an important topic with large potential to increase cost-and-energy-effectiveness.This paper provided a comprehensive review of basic concepts,principles,and potential of operational options for green ships.The key challenges pertaining to ship crew i.e.academic qualifications prior to induction,in-service training and motivation were discussed.The author also deliberated on remedies to these challenges.

  14. A New Propulsion System for Ships.

    Science.gov (United States)

    1980-01-31

    complex relationships involving ship propulsion , ship control and a host of independent problems related to hydrodynamics, structural mechanics, efficiency...namely ship configuration and ship con- trol in addition to ship propulsion . The transmission pump can 1be used for boundary layer control on the...possibly overcome the limitation and performance shortcomings of existing ship propulsion systems. Light weight propulsion systems for naval ship

  15. Future of Magnetohydrodynamic Ship Propulsion,

    Science.gov (United States)

    1983-08-16

    83 FOREIGN TECHNOLOGY DIVISION FUTURE OF MAGNETOHYDRODYNAMIC SHIP PROPULSION by A.P. Baranov DTIQ ~E tJ Approved for public release; 0.. distribution...MAGNETOHYDRODYNAMIC SHIP PROPULSION By: A.P. Baranov -,English pages: 10 Source: Sudostroyeniye, Nr. 12, December 1966, pp. 3-6 . Country of origin: USSR X...equations, etc. merged into this translation were extracted from the best quality copy available. FUTURE OF MAGNETOHYDRODYNAMIC SHIP PROPULSION A. P

  16. Competitiveness of Slovenian Cargo Shipping

    Directory of Open Access Journals (Sweden)

    Milojka Počuča

    2012-10-01

    Full Text Available The paper presents Slovenian cargo shipping, its system oforganisation, ownership, age and value stntcture. It shows theimportance of shipping in the Slovenian overseas trade and itsimpact on the state's balance of payments. The analysis of thecompetitiveness of shipping was made from the viewpoint ofoperation costs and in comparison with the competitiveness ofEU shippers. The paper concludes with a proposal of possiblesystemic solutions which improve the competitiveness of Slovenianshipping.

  17. Review of Feminist Bioethics At the Center, On the Margins, edited by Jackie Leach Scully, Laurel E. Baldwin-Ragaven, Petya Fitzpatrick

    Directory of Open Access Journals (Sweden)

    Sander-Staudt Maureen

    2010-12-01

    Full Text Available Abstract The anthology, Feminist Bioethics, edited by Jackie Leach Scully, Laurel E. Baldwin-Ragaven, and Petya Fitzpatrick, examines how feminist bioethics theoretically and methodologically challenges mainstream bioethics, and whether these approaches are useful for exploring difference in other contexts. It offers critical conceptual analyses of "autonomy", "universality", and "trust", and covers topics such as testing for hereditary cancer, prenatal selection for sexual orientation, midwifery, public health, disability, Indigenous research reform in Australia, and China's one child policy.

  18. Ship Creek bioassessment investigations

    Energy Technology Data Exchange (ETDEWEB)

    Cushing, C.E.; Mueller, R.P.; Murphy, M.T.

    1995-06-01

    Pacific Northwest Laboratory (PNL) was asked by Elmendorf Air Force Base (EAFB) personnel to conduct a series of collections of macroinvertebrates and sediments from Ship Creek to (1) establish baseline data on these populations for reference in evaluating possible impacts from Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) activities at two operable units, (2) compare current population indices with those found by previous investigations in Ship Creek, and (3) determine baseline levels of concentrations of any contaminants in the sediments associated with the macroinvertebrates. A specific suite of indices established by the US Environmental Protection Agency (EPA) was requested for the macroinvertebrate analyses; these follow the Rapid Bioassessment Protocol developed by Plafkin et al. (1989) and will be described. Sediment sample analyses included a Microtox bioassay and chemical analysis for contaminants of concern. These analyses included, volatile organic compounds, total gasoline and diesel hydrocarbons (EPA method 8015, CA modified), total organic carbon, and an inductive-coupled plasma/mass spectrometry (ICP/MS) metals scan. Appendix A reports on the sediment analyses. The Work Plan is attached as Appendix B.

  19. Integrated cargo routing and ship scheduling in liner shipping

    DEFF Research Database (Denmark)

    Kjeldsen, Karina Hjortshøj

    The problem consists of creating routes and schedules for a heterogeneous fleet of ships while determining the cargo routing and the speed for all relevant port pair/ship combinations. Transshipment is allowed in ports with transshipment capabilities. The service frequency is fixed at one week...

  20. Ship Systems Staging Diagrams for DDG-37 Class Ships.

    Science.gov (United States)

    1977-12-01

    Naval Air Systems Command ( NA VELEX - Naval Electronics Systems CommandNAVSEA - Naval Sea Systems Command NA VSEC - Naval Ships Engineering Center...Configuration Accounting System (SECAS) 93.2 . 3 Technical Systems Commands (NAVSEA, NA VELEX ) . 9 3. 2. 4 Type Commanders (TYCOMs~ 9I 3. 2. 5 Nava l Ships

  1. 核援救舰船救生通道的防核污染方法研究%Research of Nuclear Contamination Proofing Methods of Lifesaving Channels on Nuclear Succor Ships

    Institute of Scientific and Technical Information of China (English)

    董一平; 仲晨华; 朱小俊

    2013-01-01

    In order to protect the warships which are doing nuclear assistant jobs from nuclear threat,the nuclear protection methods of the lifesaving tunnels should be considered The paper analyzes the situation and existing problems of the safety area and lifesaving channels,and calculates the fresh air volume for people passing through the channels respectively by three methods such as separating door,air curtain and air vortex system.The protection ability of the above three methods is analyzed.The numerical simulation and the experiments prove that the long tunnel air vortex system can keep the tunnel clean and have a good ability to isolate the nuclear air pollution.The conclusion shows that using air vortex system is a promising way to isolate nuclear air pollution.%为了对开展核援救活动的涉核舰船进行保护,需要研究救生通道的核防护问题.分别分析了防护区、救生通道的现状、存在的问题,估算了隔离门、空气幕以及长通道空气涡塞系统等三种方法在人通过通道时所附加的新风需求量,分析了上述三种方法的防护能力,并通过数值仿真、实物试验验证长通道空气涡塞系统不妨碍交通,对空气污染的阻隔能力强,是一种有前途的隔离核污染方法.

  2. On Impact Mechanics in Ship Collisions

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup; Zhang, Shengming

    1998-01-01

    The purpose of this paper is to present analytical, closed-form expressions for the energy released for crushing and the impact impulse during ship collisions. Ship-ship collisions, ship collisions with rigid walls and ship collisions with flexible offshore structures are considered. The derived ...

  3. Single liner shipping service design

    DEFF Research Database (Denmark)

    Plum, Christian Edinger Munk; Pisinger, David; Salazar-González, Juan-José;

    2014-01-01

    The design of container shipping networks is an important logistics problem, involving assets and operational costs measured in billions of dollars. To guide the optimal deployment of the ships, a single vessel round trip is considered by minimizing operational costs and flowing the best paying d...

  4. NATO Standards for Virtual Ships

    NARCIS (Netherlands)

    Kraker, J.K. de; Duncan, J.; Budde, E.W.; Reading, R.

    2005-01-01

    The NATO Naval Armaments Group Sub-Group 61 on Virtual Ships has been chartered to establish NATO standards for modeling and simulation applied to ship acquisition. Its objective is to enable multi-national simulation re-use and interoperability, as well as simulation composability. Technical activi

  5. Hydroelastic Vibrations of Ships

    DEFF Research Database (Denmark)

    Jensen, Jørgen Juncher; Folsø, Rasmus

    2002-01-01

    A formula for the necessary hull girder bending stiffness required to avoid serious springing vibrations is derived. The expression takes into account the zero crossing period of the waves, the ship speed and main dimensions. For whipping vibrations the probability of exceedance for the combined...... wave- and whipping induced bending moment is derived under the assumption that the maximum peak value in a whipping sequence occurs simultaneously with a peak in sagging wave-induced bending moment, but that the magnitudes of these two peaks are statistically independent. The expression can be written...... as the usual Rayleigh distribution for the wave response multiplied by a factor independent of the significant wave height. Finally, the springing and whipping predictions are compared with model test results....

  6. Ship of Fools

    OpenAIRE

    Boullet, Vanessa

    2012-01-01

    Ship of Fools est un essai polémique sur les différents éléments qui, selon Fintan O’Toole, ont contribué à la chute du Tigre Celtique : hommes politiques incompétents, souvent corrompus et pourtant réélus par les Irlandais, banquiers et promoteurs cupides, et enfin régulations inexistantes dans la gestion des affaires du pays. La thèse principale que développe O’Toole, journaliste et intellectuel de gauche, est que l’Irlande a d’une certaine manière importé sa modernité économique (passant r...

  7. Ship Roll Damping Control

    DEFF Research Database (Denmark)

    Perez, Tristan; Blanke, Mogens

    2012-01-01

    The technical feasibility of roll motion control devices has been amply demonstrated for over 100 years. Performance, however, can still fall short of expectations because of difficulties associated with control system designs, which have proven to be far from trivial due to fundamental performance...... limitations and large variations of the spectral characteristics of wave-induced roll motion. This tutorial paper presents an account of the development of various ship roll motion control systems together with the challenges associated with their design. It discusses the assessment of performance...... and the applicability of different mathematical models, and it surveys the control methods that have been implemented and validated with full scale experiments. The paper also presents an outlook on what are believed to be potential areas of research within this topic....

  8. Identification of Dynamically Positioned Ships

    Directory of Open Access Journals (Sweden)

    Thor I. Fossen

    1996-04-01

    Full Text Available Todays model-based dynamic positioning (DP systems require that the ship and thruster dynamics are known with some accuracy in order to use linear quadratic optical control theory. However, it is difficult to identify the mathematical model of a dynamically posititmed (DP ship since the ship is not persistently excited under DP. In addition the ship parameter estimation problem is nonlinear and multivariable with only position and thruster state measurements available for parameter estimation. The process and measurement noise must also be modeled in order to avoid parameter drift due to environmental disturbances and sensor failure. This article discusses an off-line parallel extended Kalman filter (EKF algorithm utilizing two measurement series in parallel to estimate the parameters in the DP ship model. Full-scale experiments with a supply vessel are used to demonstrate the convergence and robustness of the proposed parameter estimator.

  9. Occupational accidents aboard merchant ships

    DEFF Research Database (Denmark)

    Hansen, H.L.; Nielsen, D.; Frydenberg, Morten

    2002-01-01

    Objectives: To investigate the frequency, circumstances, and causes of occupational accidents aboard merchant ships in international trade, and to identify risk factors for the occurrence of occupational accidents as well as dangerous working situations where possible preventive measures may...... be initiated. Methods: The study is a historical follow up on occupational accidents among crew aboard Danish merchant ships in the period 1993–7. Data were extracted from the Danish Maritime Authority and insurance data. Exact data on time at risk were available. Results: A total of 1993 accidents were...... rate of accidents than Danish citizens. Age was a major risk factor for accidents causing permanent disability. Change of ship and the first period aboard a particular ship were identified as risk factors. Walking from one place to another aboard the ship caused serious accidents. The most serious...

  10. A Model of Ship Auxiliary System for Reliable Ship Propulsion

    Directory of Open Access Journals (Sweden)

    Dragan Martinović

    2012-03-01

    Full Text Available The main purpose of a vessel is to transport goods and passengers at minimum cost. Out of the analysis of relevant global databases on ship machinery failures, it is obvious that the most frequent failures occur precisely on the generator-running diesel engines. Any failure in the electrical system can leave the ship without propulsion, even if the main engine is working properly. In that case, the consequences could be devastating: higher running expenses, damage to the ship, oil spill or substantial marine pollution. These are the reasons why solutions that will prevent the ship being unable to manoeuvre during her exploitation should be implemented. Therefore, it is necessary to define a propulsion restoration model which would not depend on the primary electrical energy. The paper provides a model of the marine auxiliary system for more reliable propulsion. This includes starting, reversing and stopping of the propulsion engine. The proposed solution of reliable propulsion model based on the use of a shaft generator and an excitation engine enables the restoration of propulsion following total failure of the electrical energy primary production system, and the self-propelled ship navigation. A ship is an important factor in the Technology of Transport, and the implementation of this model increases safety, reduces downtime, and significantly decreases hazards of pollution damage.KEYWORDSreliable propulsion, failure, ship auxiliary system, control, propulsion restoration

  11. Bio-indications of sunken ships and ship wrecks

    Digital Repository Service at National Institute of Oceanography (India)

    Parulekar, A.H.

    An evaluation of bottom fauna of ship-wreck sites in estuarine and coastal waters of Goa, India, revealed an exceptionally high biotic enrichment. In terms of number of species, faunal dispersion, faunal diversity, biomass and productivity, in space...

  12. Production Balance of Ship Erection

    Institute of Scientific and Technical Information of China (English)

    JIANG Ru-hong; TAN Jia-hua; LIU Cun-gen

    2008-01-01

    A network plan model of ship erection was established based on the network planning technologyand the work-package breakdown system. The load-oriented production control method was introduced to buildup a throughput diagram model thus it is possible to describe the ship erection process numerically. Based onthe digitaiized models some cases of production balance of ship erection were studied and three balance indexeswere put forward, they are the load balance rate, the input manpower balance rate and the maximum gantrycrane operating times. Such an analytic method based on the balance evaluation is the important foundationfor digitization and intelligentization of shipyard production management.

  13. WMO Selected, Supplemenatary, Auxiliary Ships

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — World Meteorological Organization International List of Selected, Supplementary and Auxiliary Ships, recognized as Publication 47. 1973-1998 editions, gathered from...

  14. LNG systems for natural gas propelled ships

    Science.gov (United States)

    Chorowski, M.; Duda, P.; Polinski, J.; Skrzypacz, J.

    2015-12-01

    In order to reduce the atmospheric pollution generated by ships, the International Marine Organization has established Emission Controlled Areas. In these areas, nitrogen oxides, sulphur oxides and particulates emission is strongly controlled. From the beginning of 2015, the ECA covers waters 200 nautical miles from the coast of the US and Canada, the US Caribbean Sea area, the Baltic Sea, the North Sea and the English Channel. From the beginning of 2020, strong emission restrictions will also be in force outside the ECA. This requires newly constructed ships to be either equipped with exhaust gas cleaning devices or propelled with emission free fuels. In comparison to low sulphur Marine Diesel and Marine Gas Oil, LNG is a competitive fuel, both from a technical and economical point of view. LNG can be stored in vacuum insulated tanks fulfilling the difficult requirements of marine regulations. LNG must be vaporized and pressurized to the pressure which is compatible with the engine requirements (usually a few bar). The boil-off must be controlled to avoid the occasional gas release to the atmosphere. This paper presents an LNG system designed and commissioned for a Baltic Sea ferry. The specific technical features and exploitation parameters of the system will be presented. The impact of strict marine regulations on the system's thermo-mechanical construction and its performance will be discussed. The review of possible flow-schemes of LNG marine systems will be presented with respect to the system's cost, maintenance, and reliability.

  15. Littoral Combat Ship Crew Scheduling

    Science.gov (United States)

    2015-03-01

    package DON Department of the Navy F&R Fix and Relax GAMS General Algebraic Modeling System LCS Littoral Combat Ship LCSRON Littoral Combat Ship...but that can be acceptable depending on the scheduler needs. F&R produces superior long-term schedules when compared to a similar-length RH schedule...LEFT BLANK 29 IV. MODEL IMPLEMENTATION LCSS is implemented with the General Algebraic Modeling System (GAMS) using the GAMS/CPLEX (GAMS, 2014

  16. Modeling of the electric ship

    OpenAIRE

    2010-01-01

    Approved for public release; distribution is unlimited As the United States Navy continues to refine its designs for future ships, one approach that it is currently being explored is to use a unified electrical grid to power every system aboard a ship, including propulsion and weapons. Some concerns with this design are estimating the power demands placed upon the grid by various systems and anticipating transients induced on the grid by high power pulsed loads. The first part of this thes...

  17. Lifecycle Readiness and Ship Deployment

    Science.gov (United States)

    2013-06-01

    The physical fatigue associated with ship motions has significant consequences for today’s minimally manned ships. “Because of minimally sized...a deployment. The inefficiencies in performance may develop from lack of training, different personal aptitude, and individual’s mental or physical ...exacerbation of symptoms known as the avalanche phenomenon follows which includes: increased salivation, bodily warmth , and light- headedness” (Stevens

  18. Competitive Liner Shipping Network Design

    DEFF Research Database (Denmark)

    Karsten, Christian Vad

    The goal of this thesis is to develop decision support tools, which can be used to optimize container shipping networks while supporting competitive transportation services. The competitiveness of container liner shipping is to a high degree determined by transportation times and number of transs......The goal of this thesis is to develop decision support tools, which can be used to optimize container shipping networks while supporting competitive transportation services. The competitiveness of container liner shipping is to a high degree determined by transportation times and number...... shipping company earnings.The operation of the route net constitute the majority of the total costs, so it is essential to achieve a good capacity utilization in a route plan with travel times that satisfy customer requirements. Most academic articles dealing with the design of container networks neither.......The contributions of this thesis cover modeling, methodology, and applications.The developed methods address operational (cargo routing), tactical (speed optimization and service selection), and strategic (network design) planning problems faced by liner shipping companies. Ultimately, the proposed methods help...

  19. Study of Coupling Vibration of Wind-Train-Track-Bridge System for Main Ship Channel Bridge of Hutong Changjiang River Bridge%沪通长江大桥主航道桥风-车-轨-桥耦合振动研究

    Institute of Scientific and Technical Information of China (English)

    刘德军; 李小珍; 马松华; 吴金峰

    2015-01-01

    To study the wind resistance safety of the trains traveling on the main ship channel bridge of the Hutong Changjiang River Bridge under the lateral wind ,the coupling vibration analy-sis framework of wind-train-track-bridge system was proposed .In the dynamics model for the sys-tem ,the vibration contribution of the track structures was not only considered ,but also the wheel-track dynamic coupling model applied by the system broke through the traditional assumption that the wheels and tracks were the rigid bodies and were tightly contact all the time .In addition ,in the related aerodynamic load ,the mutual influences of existence of the bridge and trains were also considered .For the main ship channel bridge as mentioned ,the independently developed software WTTBDAS was used to analyze and discuss the dynamic responses of the system un-der the different train and wind speeds .The results of the study indicate that both the train and wind speeds have considerable influences on the dynamic responses of the system .When the wind speed reaches 20 m/s ,the traveling safety and riding comfort of the trains are mainly controlled by the wind speeds .In accordance with the corresponding dynamic performance evaluation indi-ces ,the thresholds of the train-wind speeds for the trains traveling on the bridge under the strong wind are obtained .%为研究沪通长江大桥主航道桥在侧风下桥上行车的车辆抗风安全性 ,提出风-车 -轨-桥系统耦合振动分析框架.该系统动力学模型不仅考虑了轨道结构的参振 ,其采用的轮轨动态耦合模型还突破了传统轮轨为刚体并始终保持密贴的假定.此外,气动荷载还考虑了桥梁、车辆的存在对彼此的影响.针对沪通长江大桥主航道桥 ,利用自主研发的WTTBDAS 软件对不同车速、风速下系统的动力响应进行分析和讨论 ,结果表明:车速和风速均对系统动力响应有较大的影响 ,当风速达到20 m/s后,车辆的运行安全

  20. On impact mechanics in ship collisions

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup; Zhang, Shengming

    1998-01-01

    The purpose of this paper is to present analytical, closed-form expressions for the energy released for crushing and the impact impulse during ship collisions. Ship–ship collisions, ship collisions with rigid walls and ship collisions with flexible offshore structures are considered. The derived ...... of illustrative examples are presented. The procedure presented in the paper is well suited for inclusion in a probabilistic calculation model for damage of ship structures due to collisions....

  1. On the Global Ship Hull Bending Energy in Ship Collisions

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup; Li, Y.

    2004-01-01

    During ship collisions part of the kinetic energy of the involved vessels prior to contact is absorbed as energy dissipated by crushing of the hull structures, by friction and by elastic energy. The purpose of this report is to present an estimate of the elastic energy that can be stored in elastic...... hull vibrations during a ship collision. When a ship side is strengthened in order to improve the crashworthiness it has been argued in the scientific literature that a non trivial part of the energy released for structural deformation during the collision can be absorbed as elastic energy in global...... to the impact location and where local and global bending vibration modes are neglected. That is, the structural deformation problem is considered quasi-static. In this paper a simple uniform free-free beam model is presented for estimating the energy transported into the global bending vibrations of the struck...

  2. On the global ship hull bending energy in ship collisions

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup; Li, Yujie

    2009-01-01

    During ship collisions part of the kinetic energy of the involved vessels immediately prior to contact is absorbed as energy dissipated by crushing of the hull structures, by friction and by elastic energy. The purpose of this report is to present an estimate of the elastic energy that can...... be stored in elastic hull vibrations during a ship collision. When a ship side is strengthened in order to improve the crashworthiness it has been argued in the scientific literature that a non-trivial part of the energy released for structural deformation during the collision can be absorbed as elastic...... is confined to the impact location and where local and global bending vibration modes are neglected. That is, the structural deformation problem is considered quasi-static. In this paper a simple uniform free–free beam model is presented for estimating the energy transported into the global bending vibrations...

  3. Boiler for ships; Hakuyo boira

    Energy Technology Data Exchange (ETDEWEB)

    Shimoda, F. [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)

    1999-07-20

    In this paper, production and technology trend of boiler for ships in 1998 are described. The actual results of main boiler are as follows. As the main boiler for LNG ships, 4 boilers produced by Mitsui Engineering and Shipbuilding for Qatar Project, 8 produced by Kawasaki Heavy Industries for South Korea and 10 produced by Mitsubishi Heavy Industries for domestic use and South Korea. 1998 was an active year for the main boiler for ships. The auxiliary boiler of steam pressure of 16k to 25k equipping for tanker ships was 115 (4,441t/h of steam quantity in total), it greatly increased in comparison with 88 (3,172t/h) produced in the proceeding year. Donkey boilers of steam pressure of 6k to 10k equipping for container ships and bulk cargo was 147 (672t/h), and it substantially decreased in comparison with 274 (693t/h) of the proceeding year, but capacity per boiler increased. The gas exhaust economizer for turbo power generation plants was 6 produced for VLCC. (NEDO)

  4. UNIVERSE IS LIKE SPACE SHIP

    Directory of Open Access Journals (Sweden)

    M.Arulmani, V.R.Hema Latha

    2013-10-01

    Full Text Available A scientific research in this article focus that the whole Cosmo Universe shall be considered as a “SPACE SHIP”. The Space Ship shall be considered as ANCHORED to the base of universe with three-in-one space elements SUN, EARTH, MOON for its stability and symmetry. Further the Anchor of Universe shall be considered fastened to the “J-Hook” through strong THREAD consists of three core or strand for its “Centre of Buoyancy”.The Space Ship shall be considered as a suspending pendulum. The base of the pendulum considered like Anchor which is fastened to J-Hook through a cable of three core and in “Standstill State”.The human populations, life organisms spread all over the EARTH shall be considered as Passengers. Other space objects such as Planets, Comets, Asteroids, Matters, Molecules having definite mass shall be considered as CARGO existing in the Upper Deck of Human Passengers and other life organisms.The “J-Hook” shall be considered as having infinity energy level and any weight added to the base of space ship during the course of expanding universe shall not affect the centre of buoyancy of ship and the ship shall be considered as highly stable for ever (Highly Anchored and become standstill.

  5. Effect of Buffer Bow Structure in Ship-Ship Collision

    DEFF Research Database (Denmark)

    Yamada, Yasuhira; Endo, Hisayoshi; Pedersen, Preben Terndrup

    2008-01-01

    tankers, the introduction of buffer bulbous bows has been proposed. Relatively soft buffer bows absorb part of the kinetic energy of the striking ship before penetrating the inner hull of the struck vessel. The purpose of the present paper is to verify the effectiveness of a prototype buffer bulbous bow......) and the forward velocity of the struck ship on the collapse mode of the bow of the striking vessel are investigated. Collapse modes, contact forces and energy absorption capabilities of the buffer bows are compared with those of conventional bows....

  6. Advanced Whale Detection Methods to Improve Whale-Ship Collision Avoidance

    Science.gov (United States)

    McGillivary, P. A.; Tougher, B.

    2010-12-01

    Collisions between whales and ships are now estimated to account for fully a third of all whale deaths worldwide. Such collisions can incur costly ship repairs, and may damage or disable ship steering requiring costly response efforts from state and federal agencies. While collisions with rare whale species are problematic in further reducing their low population numbers, collisions with some of the more abundant whale species are also becoming more common as their populations increase. The problem is compounded as ship traffic likewise continues to grow, thus posing a growing risk to both whales and ships. Federal agencies are considering policies to alter shipping lanes to minimize whale-ship collisions off California and elsewhere. Similar efforts have already been undertaken for the Boston Harbor ship approach, where a bend in the shipping lane was introduced to reduce ship traffic through a favorite area of the highly endangered North Atlantic Right Whale. The Boston shipping approach lane was also flanked with a system of moorings with whale detection hydrophones which broadcast the presence of calling whales in or near the ship channel to approaching ships in real time. When so notified, ships can post lookouts to avoid whale collisions, and reduce speed to reduce the likelihood of whale death, which is highly speed dependent. To reduce the likelihood and seriousness of whale-ship collisions off California and Alaska in particular, there is a need to better know areas of particularly high use by whales, and consider implementation of reduced ship speeds in these areas. There is also an ongoing discussion of altering shipping lanes in the Santa Barbara Channel to avoid habitual Blue whales aggregation areas in particular. However, unlike the case for Boston Harbor, notification of ships that whales are nearby to reduce or avoid collisions is complicated because many California and Alaska whale species do not call regularly, and would thus be undetected by

  7. Aim to International Shipping Center

    Institute of Scientific and Technical Information of China (English)

    Hu Wenxiu

    2009-01-01

    @@ Since 1990s,various countries in the world have been focusing on the construction of the key ports,leading to a fiercer competition between ports.For example,in East Asia,South Korea and Japan are rivaling for the international shipping center in Northeast Asia.Taking Busan Port and Gwangyang Port as the central ports,South Korea is boosting the ports expansion plans,to construct a"logistic center in Northeast Asia".Meanwhile.Japan is projecting the optimizmg and integration of port resources,to regain the international shipping center in Asia.The central government of China made plans for constructing Shanghai Shipping Center as early in 1996.and after 13 years'construction,now Shanghai Port has the largest cargo throughput and the second largest container throughput in the world.

  8. Reliability Based Ship Structural Design

    DEFF Research Database (Denmark)

    Dogliani, M.; Østergaard, C.; Parmentier, G.;

    1996-01-01

    with developments of models of load effects and of structural collapse adopted in reliability formulations which aim at calibrating partial safety factors for ship structural design. New probabilistic models of still-water load effects are developed both for tankers and for containerships. New results are presented......This paper deals with the development of different methods that allow the reliability-based design of ship structures to be transferred from the area of research to the systematic application in current design. It summarises the achievements of a three-year collaborative research project dealing...... structure of several tankers and containerships. The results of the reliability analysis were the basis for the definition of a target safety level which was used to asses the partial safety factors suitable for in a new design rules format to be adopted in modern ship structural design. Finally...

  9. The influence of declining sea ice on shipping activity in the Canadian Arctic

    Science.gov (United States)

    Pizzolato, Larissa; Howell, Stephen E. L.; Dawson, Jackie; Laliberté, Frédéric; Copland, Luke

    2016-12-01

    Significant attention has focused on the potential for increased shipping activity driven by recently observed declines in Arctic sea ice cover. In this study, we describe the first coupled spatial analysis between shipping activity and sea ice using observations in the Canadian Arctic over the 1990-2015 period. Shipping activity is measured by using known ship locations enhanced with a least cost path algorithm to generate ship tracks and quantified by computing total distance traveled in kilometers. Statistically significant increases in shipping activity are observed in the Hudson Strait (150-500 km traveled yr-1), the Beaufort Sea (40-450 km traveled yr-1), Baffin Bay (50-350 km traveled yr-1), and regions in the southern route of the Northwest Passage (50-250 km traveled yr-1). Increases in shipping activity are significantly correlated with reductions in sea ice concentration (Kendall's tau up to -0.6) in regions of the Beaufort Sea, Western Parry Channel, Western Baffin Bay, and Foxe Basin. Changes in multiyear ice-dominant regions in the Canadian Arctic were found to be more influential on changes to shipping activity compared to seasonal sea ice regions.

  10. Wind Forces on Container Ships

    DEFF Research Database (Denmark)

    Andersen, Ingrid Marie Vincent

    2012-01-01

    An investigation of the wind forces acting on a 9,000+ TEU container ship has been carried out through a series of wind tunnel tests. It was investigated how the wind forces depend on the container configuration on the deck using a 1:450 scale model and a series of appropriate container...... are presented as nondimensional coefficients. It is concluded, that the measured forces and moment depend on the container configuration on deck, and the results may provide a general idea of how the magnitude of the wind forces is affected by a given container stacking configuration on a similar container ship....

  11. System Investigation into the Applicability of--LAMPS MK III Assets to Implement a High Data Rate Ship-to-Ship Communication System. Volume 1

    Science.gov (United States)

    1993-02-01

    bridge between the laboratory and the world of the Navy combatant ships that already have a LAWPS system onboard. The results of these efforts will...thumbwheel divider functions causes the channel on NB transmit to also be 5). These specific exist- ing LAWPS frequency synthesizer design characteristics

  12. An Algorithm for Interpolating Ship Motion Vectors

    Directory of Open Access Journals (Sweden)

    Qinyou Hu

    2014-03-01

    Full Text Available Interpolation of ship motion vectors is able to be used for estimating the lost ship AIS dynamic information, which is important for replaying marine accidents and for analysing marine traffic data. The previous methods can only interpolate ship's position, while not including ship's course and speed. In this paper, vector function is used to express the relationship between the ship's time and space coordinates, and the tangent of the vector function and its change rate are able to express physical characteristics of ship's course, speed and acceleration. The given AIS dynamic information can be applied to calculate the parameters of ship's vector function and then the interpolation model for ship motion vectors is developed to estimate the lost ship dynamic information at any given moment. Experiment results show that the ship motion vector function is able to depict the characteristics of ship motions accurately and the model can estimate not only the ship's position but also ship's course and speed at any given moment with limited differences.

  13. Temperature profiles from expendable bathythermograph (XBT) casts from NOAA Ship MILLER FREEMAN in the Bering Sea and Bristol Channel in support of the Integrated Global Ocean Services System (IGOSS) project from 1975-11-02 to 1975-11-06 (NCEI Accession 7501182)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — XBT data were collected from NOAA Ship MILLER FREEMAN in support of the Integrated Global Ocean Services System (IGOSS) project. Data were collected by the Pacific...

  14. The SUMO Ship Detector Algorithm for Satellite Radar Images

    Directory of Open Access Journals (Sweden)

    Harm Greidanus

    2017-03-01

    Full Text Available Search for Unidentified Maritime Objects (SUMO is an algorithm for ship detection in satellite Synthetic Aperture Radar (SAR images. It has been developed over the course of more than 15 years, using a large amount of SAR images from almost all available SAR satellites operating in L-, C- and X-band. As validated by benchmark tests, it performs very well on a wide range of SAR image modes (from Spotlight to ScanSAR and resolutions (from 1–100 m and for all types and sizes of ships, within the physical limits imposed by the radar imaging. This paper describes, in detail, the algorithmic approach in all of the steps of the ship detection: land masking, clutter estimation, detection thresholding, target clustering, ship attribute estimation and false alarm suppression. SUMO is a pixel-based CFAR (Constant False Alarm Rate detector for multi-look radar images. It assumes a K distribution for the sea clutter, corrected however for deviations of the actual sea clutter from this distribution, implementing a fast and robust method for the clutter background estimation. The clustering of detected pixels into targets (ships uses several thresholds to deal with the typically irregular distribution of the radar backscatter over a ship. In a multi-polarization image, the different channels are fused. Azimuth ambiguities, a common source of false alarms in ship detection, are removed. A reliability indicator is computed for each target. In post-processing, using the results of a series of images, additional false alarms from recurrent (fixed targets including range ambiguities are also removed. SUMO can run in semi-automatic mode, where an operator can verify each detected target. It can also run in fully automatic mode, where batches of over 10,000 images have successfully been processed in less than two hours. The number of satellite SAR systems keeps increasing, as does their application to maritime surveillance. The open data policy of the EU

  15. Enabling the Kaleidoscope : Blurring Sexual Aim and Destination in James Baldwin’s Another Country Donner corps au kaléidoscope: But et cible sexuels brouillés dans Another Country de James Baldwin

    Directory of Open Access Journals (Sweden)

    Ben Kiely

    2005-01-01

    Full Text Available En grande partie fondé sur les théories « gender » et « queer », cet article aborde Another Country de Baldwin en tant que lieu signifiant d’une réimagination du but et de la cible sexuels. En effet, Baldwin libère ses personnages d’une sexualité unidimensionnelle, statique et concrète. En évitant de « fixer » les désirs de ses personnages, Baldwin met au jour le potentiel kaléidoscopique de l’identité et du désir sexuels. Cet article explore en sus les problèmes de la race et de l’angoisse liée à cette dernière. Quoique Another Country ait fait l’objet d’attaques pour son absence de contenu racial, le traitement par Baldwin de l’identité masculine blanche et du discours identitaire révèle par la même occasion l’incapacité de la société américaine à valider l’expérience du Noir.

  16. Modeling of Ship Propulsion Performance

    DEFF Research Database (Denmark)

    Pedersen, Benjamin Pjedsted; Larsen, Jan

    2009-01-01

    Full scale measurements of the propulsion power, ship speed, wind speed and direction, sea and air temperature, from four different loading conditions has been used to train a neural network for prediction of propulsion power. The network was able to predict the propulsion power with accuracy bet...

  17. Legal risk management in shipping

    DEFF Research Database (Denmark)

    Siig, Kristina

    The book discusses the most typical legal challenges met in the chartering, broker, agent or port management part of the shipping industry. It discusses these issues in both English and Scandinavian law and gives indications on how to best ensure your legal risk management in these parts...

  18. Rudder roll stabilization for ships

    NARCIS (Netherlands)

    Amerongen, van J.; Klugt, van der P.G.M.; Nauta Lemke, van H.R.

    1990-01-01

    This paper describes the design of an autopilot for rudder roll stabilization for ships. This autopilot uses the rudder not only for course keeping but also for reduction of the roll. The system has a series of properties which make the controller design far from straightforward: the process has onl

  19. Norovirus transmission on cruise ship.

    Science.gov (United States)

    Isakbaeva, Elmira T; Widdowson, Marc-Alain; Beard, R Suzanne; Bulens, Sandra N; Mullins, James; Monroe, Stephan S; Bresee, Joseph; Sassano, Patricia; Cramer, Elaine H; Glass, Roger I

    2005-01-01

    An outbreak of norovirus gastroenteritis affected passengers on two consecutive cruises of ship X and continued on 4 subsequent cruises despite a 1-week sanitization. We documented transmission by food and person-to-person contact; persistence of virus despite sanitization onboard, including introductions of new strains; and seeding of an outbreak on land.

  20. Shipboard Sunphotometer Measurements of Aerosol Optical Depth During ACE-2 and Comparison with Selected Ship, Aircraft and Satellite Measurements

    Science.gov (United States)

    Livingston, J. M.; Kapustin, V. N.; Schmid, B.; Russell, P. B.; Quinn, P. K.; Bates, T. S.; Durkee, P. A.; Nielsen, K.; Freudenthaler, V.; Wiegner, M.; Covert, D. S.

    2000-01-01

    We present analyses of aerosol optical depth (AOD) measurements taken with a shipboard six-channel tracking sunphotometer during ACE-2. For 10 July 1997, results are also shown for measurements acquired 70 km from the ship with a fourteen-channel airborne tracking sunphotometer.

  1. Carcass or Tissue Packaging and Shipping

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — SOP on proper shipping of wildlife tissues to labs. Provides stepwise instructions and guidance on how to collect and ship wildlife carcasses, carcass parts, or...

  2. Note from the radioprotection group's shipping service

    CERN Multimedia

    2006-01-01

    The service for the import/export of radioactive materials reminds you that shipping requests for potentially radioactive materials must be made via the EDH request form by ticking the box 'radioactive material'. All the necessary information is given on the web site: http://cern.ch/service-rp-shipping Requests not complying with the above procedure will not be taken into account. Radioactive Shipping Service http://cern.ch/service-rp-shipping Tel. 73171 Fax: 69200

  3. Real-Time Simulation of Ship-Structure and Ship-Ship Interaction

    DEFF Research Database (Denmark)

    Lindberg, Ole; Glimberg, Stefan Lemvig; Bingham, Harry B.;

    2013-01-01

    , because it is simple, easy to implement and computationally efficient. Multiple many-core graphical processing units (GPUs) are used for parallel execution and the model is implemented using a combination of C/C++, CUDA and MPI. Two ship hydrodynamic cases are presented: Kriso Container Carrier at steady...

  4. Stopping of Ships Equipped with Azipods

    Directory of Open Access Journals (Sweden)

    Jacek Nowicki

    2014-09-01

    Full Text Available The paper contains a description of different possibilities of stopping a large ship equipped with azipods. The model tests were carried out to compare the effectiveness of stopping the ship using the different methods. The ship model used in stopping tests reproduces a large LNG carrier of capacity ~150 000 m3

  5. Underwater radiated noise from modern commercial ships.

    Science.gov (United States)

    McKenna, Megan F; Ross, Donald; Wiggins, Sean M; Hildebrand, John A

    2012-01-01

    Underwater radiated noise measurements for seven types of modern commercial ships during normal operating conditions are presented. Calibrated acoustic data (autonomous seafloor-mounted acoustic recorder were combined with ship passage information from the Automatic Identification System. This approach allowed for detailed measurements (i.e., source level, sound exposure level, and transmission range) on ships of opportunity. A key result was different acoustic levels and spectral shapes observed from different ship-types. A 54 kGT container ship had the highest broadband source level at 188 dB re 1 μPa@1m; a 26 kGT chemical tanker had the lowest at 177 dB re 1 μPa@1m. Bulk carriers had higher source levels near 100 Hz, while container ship and tanker noise was predominantly below 40 Hz. Simple models to predict source levels of modern merchant ships as a group from particular ship characteristics (e.g., length, gross tonnage, and speed) were not possible given individual ship-type differences. Furthermore, ship noise was observed to radiate asymmetrically. Stern aspect noise levels are 5 to 10 dB higher than bow aspect noise levels. Collectively, these results emphasize the importance of including modern ship-types in quantifying shipping noise for predictive models of global, regional, and local marine environments.

  6. 49 CFR 174.24 - Shipping papers.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Shipping papers. 174.24 Section 174.24... Requirements § 174.24 Shipping papers. (a) A person may not accept a hazardous material for transportation or transport a hazardous material by rail unless that person receives a shipping paper prepared in...

  7. 49 CFR 177.817 - Shipping papers.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Shipping papers. 177.817 Section 177.817... Information and Regulations § 177.817 Shipping papers. (a) General requirements. A person may not accept a... received a shipping paper prepared in accordance with part 172 of this subchapter or the material...

  8. 49 CFR 176.24 - Shipping papers.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Shipping papers. 176.24 Section 176.24... Requirements § 176.24 Shipping papers. (a) A person may not accept a hazardous material for transportation or transport a hazardous material by vessel unless that person has received a shipping paper prepared...

  9. 19 CFR 4.69 - Shipping articles.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Shipping articles. 4.69 Section 4.69 Customs... VESSELS IN FOREIGN AND DOMESTIC TRADES Foreign Clearances § 4.69 Shipping articles. No vessel of the U.S... officer, of the shipping articles agreements, including any seaman's allotment agreement, required by 46...

  10. Cruise ship seakeeping and passenger comfort

    NARCIS (Netherlands)

    Dallinga, R.P.; Bos, J.E.

    2010-01-01

    In the last decade the design and construction of a substantial volume of large cruise ships has stimulated the evolution of cruise ship design. The MARIN and TNO involvement in these developments, and in particular the increase in size, have lead to new insights in how the ship design governs passe

  11. “I can’t live there no more” :Baldwin and Škvoreckv on Jazz and Exile “Je ne peux plus vivre là-bas”: Jazz et exil chez Baldwin et Škvorecký

    Directory of Open Access Journals (Sweden)

    Charles Daniel Sabatos

    2005-01-01

    Full Text Available Cet article examine les thèmes croisés du jazz et de l’exil dans Another Country de James Baldwin et The Bass Saxophone de l’écrivain tchéco-canadien Josef Škvorecký. D’autres écrivains exilés afro-américains et tchèques tels Richard Wright et Milan Kundera ont insisté sur l’aspect politique du jazz, que Wright décrit comme un “rejet extatique” de la société et que Kundera définit comme en constante évolution, en contraste avec la musique populaire. Dans Another Country de Baldwin, le jazz est fortement lié aux personnages les plus en marge de la société américaine: non seulement Rufus, le musicien de jazz noir, mais aussi Eric, le Blanc expatrié revenant de France. La musique de Bessie Smith et Billie Holiday offre une toile de fond aux moments les plus intimes de ces personnages, et elle-même témoigne d’un profond désir de trouver une meilleure patrie, malheureusement inexistante. Pour Škvorecký (qui a quitté l’Europe de l’Est pour l’Amérique du Nord et Baldwin (qui a quitté l’Amérique pour passer une grande partie de sa vie en Europe le jazz transforme les expériences douloureuses en art, servant à la fois d’inspiration et de catharsis.

  12. Accidents on ships in the Danish International Ship register

    DEFF Research Database (Denmark)

    Ádám, Balázs; Rasmussen, Hanna Barbara

    Safety has been in the focus of seafaring during the past decade that observed a gradual reduction of reported work injuries in Danish ships. The injuries are, however, unevenly distributed in the maritime workforce, depending on various factors, the nationality of seafarer among them. The aim of...... the occurrence as well as the reporting of accidents is crucial to construct effective preventive measures for risk management....... to report accidents causing at least one day off work beyond the day of accident but the first source contains several accidents not fulfilling this criterion, too. Radio Medical is an independent service where all Danish ships may seek medical advice. The data sets were merged by identification number...... Western European seafarers compared to South East Asian (mostly Filipino) employees. The results highlight a favourable level of reported injuries in the Danish maritime sector but also point out detectable differences between groups of employees. The identification of factors that determine...

  13. 76 FR 30229 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2011-05-24

    ...-committees. --Work of other bodies. --Status of conventions. --Harmful anti-fouling systems for ships... ballast water. --Recycling of ships. --Prevention of air pollution from ships. --Reduction of GHG emissions from ships. --Consideration and adoption of amendments to mandatory instruments....

  14. 75 FR 64390 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2010-10-19

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Shipping Coordinating Committee; Notice of Committee Meeting The Shipping Coordinating Committee (SHC) will conduct an... --Formal safety assessment --Piracy and armed robbery against ships --General cargo ship...

  15. Approximate Method of Calculating Forces on Rudder During Ship Sailing on a Shipping Route

    Directory of Open Access Journals (Sweden)

    K. Zelazny

    2014-09-01

    Full Text Available Service speed of a ship in real weather conditions is a basic design parameter. Forecasting of this speed at preliminary design stage is made difficult by the lack of simple but at the same accurate models of forces acting upon a ship sailing on a preset shipping route. The article presents a model for calculating forces and moment on plane rudder, useful for forecasting of ship service speed at preliminary stages of ship design.

  16. Intelligent control algorithm for ship dynamic positioning

    Directory of Open Access Journals (Sweden)

    Meng Wang

    2014-12-01

    Full Text Available Ship motion in the sea is a complex nonlinear kinematics. The hydrodynamic coefficients of ship model are very difficult to accurately determine. Establishing accurate mathematical model of ship motion is difficult because of changing random factors in the marine environment. Aiming at seeking a method of control to realize ship positioning, intelligent control algorithms are adopt utilizing operator's experience. Fuzzy controller and the neural network controller are respectively designed. Through simulations and experiments, intelligent control algorithm can deal with the complex nonlinear motion, and has good robustness. The ship dynamic positioning system with neural network control has high positioning accuracy and performance.

  17. Intelligent Prediction of Ship Maneuvering

    Directory of Open Access Journals (Sweden)

    Miroslaw Lacki

    2016-09-01

    Full Text Available In this paper the author presents an idea of the intelligent ship maneuvering prediction system with the usage of neuroevolution. This may be also be seen as the ship handling system that simulates a learning process of an autonomous control unit, created with artificial neural network. The control unit observes input signals and calculates the values of required parameters of the vessel maneuvering in confined waters. In neuroevolution such units are treated as individuals in population of artificial neural networks, which through environmental sensing and evolutionary algorithms learn to perform given task efficiently. The main task of the system is to learn continuously and predict the values of a navigational parameters of the vessel after certain amount of time, regarding an influence of its environment. The result of a prediction may occur as a warning to navigator to aware him about incoming threat.

  18. Competitive Liner Shipping Network Design

    DEFF Research Database (Denmark)

    Karsten, Christian Vad; Brouer, Berit Dangaard; Pisinger, David

    We present a solution method for the liner shipping network design problem which is a core strategic planning problem faced by container carriers. We propose the first practical algorithm which explicitly handles transshipment time limits for all demands. Individual sailing speeds at each service...... leg are used to balance sailings speed against operational costs, hence ensuring that the found network is competitive on both transit time and cost. We present a matheuristic for the problem where a MIP is used to select which ports should be inserted or removed on a route. Computational results...... are presented showing very promising results for realistic global liner shipping networks. Due to a number of algorithmic enhancements, the obtained solutions can be found within the same time frame as used by previous algorithms not handling time constraints. Furthermore we present a sensitivity analysis...

  19. On Grounding of Fast Ships

    DEFF Research Database (Denmark)

    Simonsen, Bo Cerup; Pedersen, Preben Terndrup

    1997-01-01

    numerical examples also indicate that, even with impact speeds of 40 knots against a 1:10 sloping bottom, the global strength of the hull girder is not exceeded by the grounding induced loads.For the local deformation of high-speed ship hulls at the point of contact with the ground, the paper presents...... experimental results from crushing tests of aluminium hull girder components with realistic full-scale scantlings. A comparison with existing simplified calculation procedures for ductile metallic structures show that these procedures cannot be used to predict the crushing behaviour of the fore body of high......The paper deals with analysis of grounding of high-speed crafts. It is the purpose to present a comprehensive mathematical model for calculation of the overall dynamic ship response during grounding. This procedure is applied to derive the motions, the time varying sectional forces and the local...

  20. Ship recycling and marine pollution.

    Science.gov (United States)

    Chang, Yen-Chiang; Wang, Nannan; Durak, Onur Sabri

    2010-09-01

    This paper discusses the historical background, structure and enforcement of the '2009 Hong Kong International Convention on the Safe and Environmentally Sound Recycling of Ships.' the 2009 Hong Kong Convention establishes control and enforcement instruments related to ship recycling, determining the control rights of Port States and the obligations of Flag States, Parties and recycling facilities under its jurisdiction. The Convention also controls the communication and exchange of information procedures, establishes a reporting system to be used upon the completion of recycling, and outlines an auditing system for detecting violations. The Convention, however, also contains some deficiencies. This paper concludes these deficiencies will eventually influence the final acceptance of this Convention by the international community.

  1. Cashless ships: a feasiblity study

    OpenAIRE

    Manhertz, Carey M

    1997-01-01

    Approved for public release; distribution is unlimited The advent of mechanisms for facilitating electronic commerce has triggered widespread interest in several fields. However, research in electronic commerce to include Smart Card Technology has mainly focused on land-based transactions. This research investigates the role of Information Technology in facilitating electronic commerce at sea, aboard U.S. Navy ships. It determines the feasibility of replacing the current cash shipboard arc...

  2. The Human Element and Autonomous Ships

    Directory of Open Access Journals (Sweden)

    Sauli Ahvenjärvi

    2016-09-01

    Full Text Available The autonomous ship technology has become a “hot” topic in the discussion about more efficient, environmentally friendly and safer sea transportation solutions. The time is becoming mature for the introduction of commercially sensible solutions for unmanned and fully autonomous cargo and passenger ships. Safety will be the most interesting and important aspect in this development. The utilization of the autonomous ship technology will have many effects on the safety, both positive and negative. It has been announced that the goal is to make the safety of an unmanned ship better that the safety of a manned ship. However, it must be understood that the human element will still be present when fully unmanned ships are being used. The shore-based control of a ship contains new safety aspects and an interesting question will be the interaction of manned and unmanned ships in the same traffic area. The autonomous ship technology should therefore be taken into account on the training of seafarers. Also it should not be forgotten that every single control algorithm and rule of the internal decision making logic of the autonomously navigating ship has been designed and coded by a human software engineer. Thus the human element is present also in this point of the lifetime navigation system of the autonomous ship.

  3. Modeling the regional impact of ship emissions on NOx and ozone levels over the Eastern Atlantic and Western Europe using ship plume parameterization

    Directory of Open Access Journals (Sweden)

    P. Pisoft

    2010-07-01

    Full Text Available In general, regional and global chemistry transport models apply instantaneous mixing of emissions into the model's finest resolved scale. In case of a concentrated source, this could result in erroneous calculation of the evolution of both primary and secondary chemical species. Several studies discussed this issue in connection with emissions from ships and aircraft. In this study, we present an approach to deal with the non-linear effects during dispersion of NOx emissions from ships. It represents an adaptation of the original approach developed for aircraft NOx emissions, which uses an exhaust tracer to trace the amount of the emitted species in the plume and applies an effective reaction rate for the ozone production/destruction during the plume's dilution into the background air. In accordance with previous studies examining the impact of international shipping on the composition of the troposphere, we found that the contribution of ship induced surface NOx to the total reaches 90% over remote ocean and makes 10–30% near coastal regions. Due to ship emissions, surface ozone increases by up to 4–6 ppbv making 10% contribution to the surface ozone budget. When applying the ship plume parameterization, we show that the large scale NOx decreases and the ship NOx contribution is reduced by up to 20–25%. A similar decrease was found in the case of O3. The plume parameterization suppressed the ship induced ozone production by 15–30% over large areas of the studied region. To evaluate the presented parameterization, nitrogen monoxide measurements over the English Channel were compared with modeled values and it was found that after activating the parameterization the model accuracy increases.

  4. Modeling the regional impact of ship emissions on NOx and ozone levels over the Eastern Atlantic and Western Europe using ship plume parameterization

    Directory of Open Access Journals (Sweden)

    P. Pisoft

    2009-12-01

    Full Text Available In general, regional and global chemistry transport models apply instantaneous mixing of emissions into the model's finest resolved scale. In case of a concentrated source, this could result in erroneous calculation of the evolution of both primary and secondary chemical species. Several studies discussed this issue in connection with emissions from ships and aircrafts. In this study, we present an approach to deal with the non-linear effects during dispersion of NOx emissions from ships. It represents an adaptation of the original approach developed for aircraft NOx emissions, which uses an exhaust tracer to trace the amount of the emitted species in the plume and applies an effective reaction rate for the ozone production/destruction during the plume's dilution into the background air. In accordance with previous studies examining the impact of international shipping on the composition of the troposphere, we found that the contribution of ship induced surface NOx to the total reaches 90% over remote ocean and makes 10–30% near coastal regions. Due to ship emissions, surface ozone increases by up to 4–6 ppbv making 10% contribution to the surface ozone budget. When applying the ship plume parameterization, we showed that the large scale NOx decreases and the ship NOx contribution is reduced by up to 20–25%. Similar decrease was found in case of O3. The plume parameterization suppressed the ship induced ozone production by 15–30% over large areas of the focused region. To evaluate the presented parameterization, nitrogen oxide measurements over the English Channel were compared with modeled values and it was found that after activating the parameterization the model accuracy increases.

  5. Relationship between container ship underwater noise levels and ship design, operational and oceanographic conditions

    Science.gov (United States)

    McKenna, Megan F.; Wiggins, Sean M.; Hildebrand, John A.

    2013-05-01

    Low-frequency ocean ambient noise is dominated by noise from commercial ships, yet understanding how individual ships contribute deserves further investigation. This study develops and evaluates statistical models of container ship noise in relation to design characteristics, operational conditions, and oceanographic settings. Five-hundred ship passages and nineteen covariates were used to build generalized additive models. Opportunistic acoustic measurements of ships transiting offshore California were collected using seafloor acoustic recorders. A 5-10 dB range in broadband source level was found for ships depending on the transit conditions. For a ship recorded multiple times traveling at different speeds, cumulative noise was lowest at 8 knots, 65% reduction in operational speed. Models with highest predictive power, in order of selection, included ship speed, size, and time of year. Uncertainty in source depth and propagation affected model fit. These results provide insight on the conditions that produce higher levels of underwater noise from container ships.

  6. Scheme of Pressure Boost and Floating Aid for Steel Open Caisson of Main Ship Channel Bridge of Hutong Changjiang River Bridge%沪通长江大桥主航道桥钢沉井增压助浮方案

    Institute of Scientific and Technical Information of China (English)

    余允锋; 邱琼海; 王立忠

    2015-01-01

    The main ship channel bridge of the Hutong Changjiang River Bridge is a double-py-lon continuous steel truss girder cable-stayed bridge with span arrangement (140+462+1 092+462+140) m .T he foundations for the main piers of the bridge are all the open caissons ,of w hich the plan dimensions of the caisson top of the main pier No .29 are 86 .9 m × 58 .7 m and in the plan of the caisson ,24 well holes are arranged .The total height of the caisson of the pier is 115 m and the lower part of the caisson is the steel caisson that is 56 m in height .In the state of free floating , the draught of the steel caisson is 12 .5 m ,the caisson can not be floated out of the shipyard be-cause of the deep draught and has the risk of grounding in the floating .To reduce the draught of the caisson and to keep the pressure in the air cabins of the caisson stable ,the scheme of pressure boost and floating aid for the caisson was proposed ,that was ,12 well holes in the caisson were symmetrically closed to make the well holes the sealed cabins .Meanwhile ,the active pressure boost system was arranged and the air was injected into the cabins from the tops of the closing cov-er plates of the well holes .The pressure boost system was composed of the air compressor ,main air pipes ,branch air pipes ,extension air pipes ,air pressure meters ,check valves ,stop valves and liquid level sensors .By the measures of injecting the air for pressure boost and releasing the air for pressure reduction ,the air pressure in each cabin was controlled .With the scheme of the pressure boost and floating aid ,the steel open caisson of the pier was finally floated out from the shipyard to the pier site only in 3 h and the effect of the scheme implementation was sound .%沪通长江大桥主航道桥为(140+462+1 092+462+140 ) m双塔连续钢桁梁斜拉桥 ,该桥主墩均采用沉井基础 ,其中 ,29号主墩沉井顶平面尺寸为86 .9 m × 58 .7 m ,平面布置24个井孔 ,高115m,下部钢沉井高56

  7. Automated Planning for Liner Shipping Fleet Repositioning

    DEFF Research Database (Denmark)

    Tierney, Kevin; Jensen, Rune Møller; Kroer, Christian

    2012-01-01

    The Liner Shipping Fleet Repositioning Problem (LSFRP) poses a large financial burden on liner shipping firms. During repositioning, vessels are moved between services in a liner shipping network. The LSFRP is characterized by chains of interacting activities, many of which have costs that are a ......The Liner Shipping Fleet Repositioning Problem (LSFRP) poses a large financial burden on liner shipping firms. During repositioning, vessels are moved between services in a liner shipping network. The LSFRP is characterized by chains of interacting activities, many of which have costs......-integer program (MIP) and a novel method called Temporal Optimization Planning (TOP). We evaluate the performance of each of these techniques on a dataset of real-world instances from our industrial collaborator, and show that automated planning scales to the size of problems faced by industry....

  8. ASPECTS RELATED TO THE PROPULSION HYDRAFOIL SHIPS

    Directory of Open Access Journals (Sweden)

    Levent ALI

    2016-12-01

    Full Text Available In this paper, we analyze some aspects related to the propulsion of hydrofoil ships. They are very important for the success of the mission if they are military ships and for cargo security, if they are civilian transport ships, especially when navigating at high speed on their hydrofoil wings in rough sea conditions. This paper presents an original procedure for estimating the propulsion of hydrofoil ships. This procedure has enabled the development of a computer program that can predict both those types of ship propulsion regime imposed at a quasi-stationary speed and the march regime on wings. The calculation software obtained may serve to design any type of hydrofoil ship.

  9. Ship emissions and air pollution in Denmark

    DEFF Research Database (Denmark)

    Olesen, Helge Rørdam; Winther, Morten; Ellermann, Thomas

    A project has been carried out to map the contribution from ship traffic to air pollution in Denmark. A main element in the project is the establishment of a new, improved inventory of ship emissions for the waters around Denmark. The inventory makes use of the so-called AIS system, which...... continuously keeps track of ship positions. The inventory provides basis for model calculations of air quality in Denmark for the years 2007, 2011 and 2020. The study has focus on identifying the contribution from ships, and on assessing the effect of international regulations of ship pollution. A minor...... component of the study concerns the contribution to local air pollution from ships at port....

  10. Convective Heat Transfer for Ship Propulsion.

    Science.gov (United States)

    1982-04-01

    RD-A124 Wi CONVECTIVE HEAT TRANSFER FOR SHIP PROPULSION (U) ARIZONA 112 UNIV TUCSON ENGINEERING EXPERIMENT STATION PARK ET AL. 01 APR 82 1248-9 N814...395 CONVECTIVE HEAT TRANSFER FOR SHIP PROPULSION Prepared for Office of Naval Research Code 431 Arlington, Virginia Prepared by J. S. Park, M. F...FOR SHIP PROPULSION By J. S. Park, M. F. Taylor and D. M. McEligot Aerospace and Mechanical Engineering Department University of Arizona Tucson

  11. Navy Ship Names: Background for Congress

    Science.gov (United States)

    2016-09-14

    something else. Some observers have perceived a breakdown in, or corruption of, the rules for naming Navy ships. On July 13, 2012, the Navy submitted to...Transport Docks (ESDs) and Expeditionary Sea Bases (ESBs), which were previously called Mobile Landing Platform (MLP) ships and Afloat Forward Staging...Congress.) Some observers have perceived a breakdown in, or corruption of, the rules for naming Navy ships. 15 Such observers might cite, for

  12. Connecting Land-Based Networks to Ships

    Science.gov (United States)

    2013-06-01

    intranet browsing or video conferencing . To accomplish this, most ships use satellite communications, which is an expensive and slow method. When a...communicate and exchange information with a shore network for services such as file transfer, database access, e-mail, web/intranet browsing or video ... conferencing . To accomplish this, most ships use satellite communications, which is an expensive and slow method. When a ship is near shore, it can use

  13. Shipping/Receiving and Quality Control

    Data.gov (United States)

    Federal Laboratory Consortium — Shipping receiving, quality control, large and precise inspection and CMM machines. Coordinate Measuring Machines, including "scanning" probes, optical comparators,...

  14. Convolution neural networks for ship type recognition

    Science.gov (United States)

    Rainey, Katie; Reeder, John D.; Corelli, Alexander G.

    2016-05-01

    Algorithms to automatically recognize ship type from satellite imagery are desired for numerous maritime applications. This task is difficult, and example imagery accurately labeled with ship type is hard to obtain. Convolutional neural networks (CNNs) have shown promise in image recognition settings, but many of these applications rely on the availability of thousands of example images for training. This work attempts to under- stand for which types of ship recognition tasks CNNs might be well suited. We report the results of baseline experiments applying a CNN to several ship type classification tasks, and discuss many of the considerations that must be made in approaching this problem.

  15. Note from the radioprotection group's shipping service

    CERN Multimedia

    2006-01-01

    Le service SHIPPING du groupe de radioprotection souhaite vous rappeler qu'avant toute expédition de matériel susceptible d'être radioactif, une demande de transport doit être établie par EDH en cochant la case appropriée (danger radioactif). Merci de bien vouloir prendre note des informations figurant dans le site Web: http://cern.ch/service-rp-shipping Toute demande non conforme ne sera pas prise en compte. Radioactive Shipping Service http://cern.ch/service-rp-shippingTél: 73171Fax: 69200

  16. COMPARISON BETWEEN FORMULAS OF MAXIMUM SHIP SQUAT

    Directory of Open Access Journals (Sweden)

    PETRU SERGIU SERBAN

    2016-06-01

    Full Text Available Ship squat is a combined effect of ship’s draft and trim increase due to ship motion in limited navigation conditions. Over time, researchers conducted tests on models and ships to find a mathematical formula that can define squat. Various forms of calculating squat can be found in the literature. Among those most commonly used are of Barrass, Millward, Eryuzlu or ICORELS. This paper presents a comparison between the squat formulas to see the differences between them and which one provides the most satisfactory results. In this respect a cargo ship at different speeds was considered as a model for maximum squat calculations in canal navigation conditions.

  17. Potential of biofuels for shipping. Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Florentinus, A.; Hamelinck, C.; Van den Bos, A.; Winkel, R.; Cuijpers, M. [Ecofys Netherlands, Utrecht (Netherlands)

    2012-01-15

    Biofuels could be one of the options to realize a lower carbon intensity in the propulsion of ships and also possibly reduce the effect of ship emissions on local air quality. Therefore, EMSA, the European Maritime Safety Agency, is evaluating if and how biofuels could be used in the shipping sector as an alternative fuel. To determine the potential of biofuels for ships, a clearer picture is needed on technical and organizational limitations of biofuels in ships, both on board of the ship as in the fuel supply chain to the ship. Economic and sustainability analysis of biofuels should be included in this picture, as well as an overview on current and potential policy measures to stimulate the use of biofuels in shipping. Ecofys has determined the potential of biofuels, based on analysis of collected data through literature review, own expertise and experiences, direct communication with EMSA, research publications, market developments based on press and other media, and consultations with relevant stakeholders in the shipping market.

  18. Design of Crashworthy Ship Strucures

    DEFF Research Database (Denmark)

    Toernqvist, Rikard

    2003-01-01

    The main purpose of the project has been to develop a rational procedure for designing new crashworthy side structures for those ship types where it could be expected that a substantial improvement of the crashworthiness and the related safety could be achieved by careful consideration of the str......The main purpose of the project has been to develop a rational procedure for designing new crashworthy side structures for those ship types where it could be expected that a substantial improvement of the crashworthiness and the related safety could be achieved by careful consideration...... of the structural design. For a tanker vessel or other vessels carrying hazardous cargo, damage is not acceptable if it results in cargo outflow with disastrous consequences to the environment. Likewise, the foundering of a passenger vessel can be disastrous with loss of many human lives. A major challenge...... a structure is subjected to biaxial loading. The main aspect of this thesis has therefore been to study the fracture criteria available in the literature and to validate them against various experiments with varying stress and strain states....

  19. Achieving Energy Efficient Ship Operations Under Third Party Management

    DEFF Research Database (Denmark)

    Taudal Poulsen, René; Sornn-Friese, Henrik

    2015-01-01

    of time to produce and provide reliable energy efficiency information cause energy efficiency gaps. The paper brings together the energy efficiency and ship management literatures, demonstrating how ship management models influence energy efficiency in ship operations. Achieving energy efficiency in ship...... operations is particularly challenging under third party ship management. Finally, the paper discusses management implications for shipping companies, which outsource ship management to third parties.......Profitable energy saving measures are often not fully implemented in shipping, causing energy efficiency gaps. The paper identifies energy efficiency gaps in ship operations, and explores their causes. Lack of information on energy efficiency, lack of energy training at sea and onshore and lack...

  20. LCA-ship. Design tool for energy efficient ships. A Life Cycle Analysis Program for Ships. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Jiven, Karl; Sjoebris, Anders [MariTerm AB, Goeteborg (Sweden); Nilsson, Maria [Lund Univ. (Sweden). Stiftelsen TEM; Ellis, Joanne; Traegaardh, Peter; Nordstroem, Malin [SSPA Sweden AB, Goeteborg (Sweden)

    2004-05-01

    In order to make it easier to include aspects during ship design that will improve environmental performance, general methods for life cycle calculations and a prototype tool for LCA calculations of ships and marine transportation have been developed. The base of the life cycle analyses is a comprehensive set of life cycle data that was collected for the materials and consumables used in ship construction and vessel operations. The computer tool developed makes it possible to quickly and simply specify (and calculate) the use of consumables over the vessel's life time cycle. Special effort has been made to allow the tool to be used for different types of vessels and sea transport. The main result from the project is the computer tool LCA ship, which incorporates collected and developed life cycle data for some of the most important materials and consumables used in ships and their operation. The computer application also contains a module for propulsion power calculations and a module for defining and optimising the energy system onboard the vessel. The tool itself is described in more detail in the Computer application manual. The input to the application should, as much as possible, be the kind of information that is normally found in a shipping company concerning vessel data and vessel movements. It all starts with defining the ship to be analysed and continues with defining how the ship is used over the lifetime. The tool contains compiled and processed background information about specific materials and processes (LCA data) connected to shipping operations. The LCA data is included in the tool in a processed form. LCA data for steel will for example include the environmental load from the steel production, the process to build the steel structure of the ship, the scrapping and the recycling phase. To be able to calculate the environmental load from the use of steel the total amount of steel used over the life cycle of the ship is also needed. The

  1. Contribution of ship emissions to the concentration and deposition of air pollutants in Europe

    Science.gov (United States)

    Aksoyoglu, Sebnem; Baltensperger, Urs; Prévôt, André S. H.

    2016-02-01

    Emissions from the marine transport sector are one of the least-regulated anthropogenic emission sources and contribute significantly to air pollution. Although strict limits were introduced recently for the maximum sulfur content in marine fuels in the SECAs (sulfur emission control areas) and in EU ports, sulfur emissions outside the SECAs and emissions of other components in all European maritime areas have continued to increase in the last two decades. We have used the air quality model CAMx (Comprehensive Air Quality Model with Extensions) with and without ship emissions for the year 2006 to determine the effects of international shipping on the annual as well as seasonal concentrations of ozone, primary and secondary components of PM2.5, and the dry and wet deposition of nitrogen and sulfur compounds in Europe. The largest changes in pollutant concentrations due to ship emissions were predicted for summer. Concentrations of particulate sulfate increased due to ship emissions in the Mediterranean (up to 60 %), the English Channel and the North Sea (30-35 %), while increases in particulate nitrate levels were found especially in the north, around the Benelux area (20 %), where there were high NH3 land-based emissions. Our model results showed that not only are the atmospheric concentrations of pollutants affected by ship emissions, but also depositions of nitrogen and sulfur compounds increase significantly along the shipping routes. NOx emissions from the ships, especially in the English Channel and the North Sea, cause a decrease in the dry deposition of reduced nitrogen at source regions by moving it from the gas phase to the particle phase which then contributes to an increase in the wet deposition at coastal areas with higher precipitation. In the western Mediterranean region, on the other hand, model results show an increase in the deposition of oxidized nitrogen (mostly HNO3) due to the ship traffic. Dry deposition of SO2 seems to be significant along

  2. 48 CFR 1371.118 - Changes-ship repair.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Changes-ship repair. 1371... SUPPLEMENTAL REGULATIONS ACQUISITIONS INVOLVING SHIP CONSTRUCTION AND SHIP REPAIR Provisions and Clauses 1371.118 Changes—ship repair. Insert clause 1352.271-87, Changes—Ship Repair, in all solicitations...

  3. 46 CFR 148.02-1 - Shipping papers.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Shipping papers. 148.02-1 Section 148.02-1 Shipping... MATERIALS IN BULK Vessel Requirements § 148.02-1 Shipping papers. (a) Carriers may not accept for..., unless the hazardous materials offered for such shipment is accompanied by a shipping paper on which...

  4. 46 CFR 151.45-7 - Shipping papers.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Shipping papers. 151.45-7 Section 151.45-7 Shipping... BULK LIQUID HAZARDOUS MATERIAL CARGOES Operations § 151.45-7 Shipping papers. Each barge carrying... towing vessel shall either have a copy of the shipping papers for each barge in his tow or he shall...

  5. Electric shipping in the city of Amsterdam

    NARCIS (Netherlands)

    Mensch, P. van; Verbeek, R.P.

    2015-01-01

    In November 2013, a policy paper for clean shipping has been adopted by the City Council of Amsterdam. This policy prescribes that every commercial ship needs to be zero-emission in 2020 or 2025, depending on its size, on the canals of Amsterdam.

  6. The mechanics of ship impacts against bridges

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup; Zhang, Shengming

    1998-01-01

    a glancing blow between the ship and the bridge structure. This model is based on rigid body mechanics and well suited for inclusion in a probabilistic analysis procedure. Finally, some empirical expressions are presented which relate the energy absorbed by crushing of ship structures to the maximum impact...

  7. The Maritime Preposition Force Ship 2010

    Science.gov (United States)

    2007-11-02

    suits Ship Repair 2 1 cannon Ship Repair 1 chock and FC/GM/ET 4 chain 15 81 Total 96 WCC Weapons Control Console LaCC Launcher Control Console Sup In...missions. 13. Full Battle Scenarios No attempt was made by the design team to evaluate war games which involve the entire battle force including the MEF

  8. Another Version of the Shipping Agency Market

    Institute of Scientific and Technical Information of China (English)

    JiangShaoyun

    2004-01-01

    BEIJING—On January 7, Penavico Shanghai held in Beijing an agreement signing ceremony with Wallem Shipping (HK) Co., Ltd of the Wallem (Group) Corporation for the joint establishment of a joint venture corporation named Pen-Wallem Shipping Co., Ltd.This is the first sino-foreign joint venture corporation

  9. Optimizing Liner Shipping Fleet Repositioning Plans

    DEFF Research Database (Denmark)

    Tierney, Kevin

    With the incredible growth of containerization over the past half century, shipping lines and ports are facing increasing challenges in ensuring that containers arrive at their destinations on time and on budget. This dissertation addresses several critical problems to the operations of shipping...

  10. 29 CFR 1915.162 - Ship's boilers.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false Ship's boilers. 1915.162 Section 1915.162 Labor Regulations... Ship's boilers. (a) Before work is performed in the fire, steam, or water spaces of a boiler where... dead boiler with the live system or systems shall be secured, blanked, and tagged indicating...

  11. Science Ⅲ marine research ship delivered

    Institute of Scientific and Technical Information of China (English)

    Gong Wei

    2006-01-01

    @@ On August 18, China's most advanced marine research ship Science Ⅲ was commissioned into operation at Qingdao and became an official member of China's marine research fleet. Designed and built by CSIC, the ship was delivered at Shanghai to the Institute of Oceanology, Chinese Academy of Sciences.

  12. India's ship recycling trade-off

    NARCIS (Netherlands)

    Worrell, E.; Athanasopoulou, V.

    2014-01-01

    The special nature of India's steel industry lends particular importance to ship recycling as a source of scrap. Ship recycling in upgraded 'green' facilities can substitute other 'dirty' ironmaking processes, resulting in energy savings and air pollutant emission reductions for the Indian steel sec

  13. Infrared ship signature analysis and optimisation

    NARCIS (Netherlands)

    Neele, F.P.

    2005-01-01

    The last decade has seen an increase in the awareness of the infrared signature of naval ships. New ship designs show that infrared signature reduction measures are being incorporated, such as exhaust gas cooling systems, relocation of the exhausts and surface cooling systems. Hull and superstructur

  14. Autonomous Ship Classification By Moment Invariants

    Science.gov (United States)

    Zvolanek, Budimir

    1981-12-01

    An algorithm to classify ships from images generated by an infrared (IR) imaging sensor is described. The algorithm is based on decision-theoretic classification of Moment Invariant Functions (MIFs). The MIFs are computed from two-dimensional gray-level images to form a feature vector uniquely describing the ship. The MIF feature vector is classified by a Distance-Weighted k-Nearest Neighbor (D-W k-NN) decision rule to identify the ship type. Significant advantage of the MIF feature extraction coupled with D-W k-NN classification is the invariance of the classification accuracies to ship/sensor orienta-tion - aspect, depression, roll angles and range. The accuracy observed from a set of simulated IR test images reveals a good potential of the classifier algorithm for ship screening.

  15. Cruise Ship Plume Tracking Survey Report

    Science.gov (United States)

    2002-09-01

    The U. S. Environmental Protection Agency (EPA) is developing a Cruise Ship Discharge Assessment Report in response to a petition the agency received in March 2000. The petition requested that EPA assess and where necessary control discharges from cruise ships. Comments received during public hearings, in 2000, resulted in the EPA agreeing to conduct a survey to assess the discharge plumes resulting from cruise ships, operating in ocean waters off the Florida coast and to compare the results to the Alaska dispersion models. This survey report describes the daily activities of August 2001 Cruise Ship Plume Tracking Survey, and provides a synopsis of the observations from the survey. It also provides data that can be used to assess dispersion of cruise ship wastewater discharges, while in transit. A description of the survey methods is provided in Section 2. Survey results are presented in Section 3. Findings and conclusions are discussed in Section 4.

  16. 77 FR 57638 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2012-09-18

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Shipping Coordinating Committee; Notice of Committee Meeting The Shipping Coordinating Committee (SHC) will conduct an... new measures; Formal safety assessment; Piracy and armed robbery against ships; Implementation...

  17. 76 FR 19176 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2011-04-06

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Shipping Coordinating Committee; Notice of Committee Meeting The Shipping Coordinating Committee (SHC) will conduct two... safety --Piracy and armed robbery against ships --Implementation of instruments and related...

  18. 78 FR 29201 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2013-05-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Shipping Coordinating Committee; Notice of Committee Meeting The Shipping Coordinating Committee (SHC) will conduct an... new measures Formal safety assessment Piracy and armed robbery against ships Implementation...

  19. 77 FR 50511 - Fees for Sanitation Inspections of Cruise Ships

    Science.gov (United States)

    2012-08-21

    ... 1970s as a cooperative activity with the cruise ship industry. VSP helps the cruise ship industry... October 1, 2006. The cruise ship industry should be aware that if travel expenses for VSP increase,...

  20. Riverbed Pre-Protection Techniques for Main Pier No .29 of Main Ship Channel Bridge of Hutong Changjiang River Bridge%沪通长江大桥主航道桥 29 号主墩河床预防护技术

    Institute of Scientific and Technical Information of China (English)

    崔一兵

    2015-01-01

    The main ship channel bridge of the Hutong Changjiang River Bridge is a double-py-lon continuous steel truss girder cable-stayed bridge with span arrangement (140+462+1 092+462+140) m .The foundation for the main pier No .29 of the bridge is the open caisson ,the di-mensions of the caisson top are 86 .9 m × 58 .7 m and the caisson height is 115 m .Because the silty sand stratum at the pier is deep and the stratum is prone to scouring under the action of water cur-rent ,the local scouring of the riverbed at the pier in the process of landing the caisson onto the ri-verbed can be severe .To ensure that the caisson could be stably and safely landed onto the river-bed ,the riverbed was hence pre-protected .The pre-protection system for the riverbed included the inverted filter layer ,protection layer and prism structure ,respectively composed of the 1~6 mm , 3~10 cm and 6~10 cm grading crushed stones and the riprapping depth is respectively 1 ,1 and 2 m ,of which the riprapping range of the protection layer extended 25 m outwards from the caisson wall .At the time the riverbed was pre-protected by the riprapping ,the virtual grids were deter-mined according to the riprapping tests ,the positioning barge ,grab barge ,material hoppers and ducts were all used to riprap at the fixed points .The inverted filter layer was riprapped first ,the protection lay was then and the prism structure was finally .With the application of the riverbed pre-protection technique ,the protection effect of the riverbed at the pier was evident and after the caisson was landed onto the riverbed and positioned ,the plan position and posture of the caisson almost had no changes .%沪通长江大桥主航道桥为(140+462+1 092+462+140 ) m双塔连续钢桁梁斜拉桥 , 29号主墩采用沉井基础 ,沉井顶平面尺寸为86 .9 m × 58 .7 m、高115 m.由于29号主墩位处粉砂层较厚 ,水流作用下这部分泥砂易被冲刷 ,对沉井着床过程中的局部冲刷大 ,为

  1. Mechanosensitive Channels

    Science.gov (United States)

    Martinac, Boris

    Living cells are exposed to a variety of mechanical stimuli acting throughout the biosphere. The range of the stimuli extends from thermal molecular agitation to potentially destructive cell swelling caused by osmotic pressure gradients. Cellular membranes present a major target for these stimuli. To detect mechanical forces acting upon them cell membranes are equipped with mechanosensitive (MS) ion channels. Functioning as molecular mechanoelectrical transducers of mechanical forces into electrical and/or chemical intracellular signals these channels play a critical role in the physiology of mechanotransduction. Studies of prokaryotic MS channels and recent work on MS channels of eukaryotes have significantly increased our understanding of their gating mechanism, physiological functions, and evolutionary origins as well as their role in the pathology of disease.

  2. QUANDO GESTOS NÃO POLÍTICOS SÃO POLÍTICOS: A TRADUÇÃO BRASILEIRA DE GIOVANNI’S ROOM, DE JAMES BALDWIN, E A QUESTÃO DA HOMOSSEXUALIDADE

    Directory of Open Access Journals (Sweden)

    Lauro Amorim

    2014-06-01

    Full Text Available Quando gestos não políticos são políticos: a tradução brasileira de Giovanni's Room, de James Baldwin, e a questão da homossexualidade Resumo: Este trabalho integra um projeto de pesquisa acerca do papel das traduções de literatura afro-americana no Brasil e sua relação com questões de identidade, discurso e estética. Analisa-se a tradução, feita por Affonso Blacheyre, do romance Giovanni's room (1956¸ de James Baldwin, publicada em 1967. Baldwin é reverenciado por sua atuação no Movimento dos Direitos Civis, tendo produzido trabalhos que retratam as contradições de uma sociedade democrática e ao mesmo tempo racista. Giovanni's room chegou a ser rejeitado por sua editora por abordar a homossexualidade. Na orelha da tradução, louva-se o "trabalho com a linguagem" na obra, em contraste com o antirracismo de outros textos do autor. Ressalta-se, sobretudo, a dimensão estética de Giovanni, contrastando-se com a ausência de qualquer menção à sua visada crítica em relação à marginalização da homossexualidade. O enfoque dado à valorização estética da obra conduziu, inclusive, a uma sofisticação do registro das falas dos personagens na tradução. Discursos em torno da formação de identidades eram menos evidentes no Brasil dos anos 60 em comparação aos dias atuais. A ênfase na natureza estética da obra representou um gesto aparentemente "não político" que a tornou menos chocante no contexto da ditadura militar vivida no país à época. Palavras-chave: Estudos da Tradução. Literatura Afro-Americana. James Baldwin. Homossexualidade. Cuando los gestos no políticos son políticos: la traducción al portugués del Brasil de Giovanni's Room, de James Baldwin, y la cuestión de la homosexualidad. Resumen: Este trabajo hace parte de un proyecto de investigación sobre el papel de las traducciones de literatura afro-americana en el Brasil y su relación con cuestiones de identidad, discurso y estética. Se

  3. Ship2Shore Marine Educators

    Science.gov (United States)

    Ewing, N. R.; Sen, G.; Doehler, S.

    2012-12-01

    The Ocean Networks Canada (ONC) Observatory, comprised of VENUS and NEPTUNE Canada (NC) cabled networks, supports transformative coastal to deep ocean research and enables real-time interactive experiments. Engaging students, educators and the public is critical to increasing the global awareness of our integral relationship with the ocean. One way to accomplish this is to encourage educators to incorporate marine science concepts into their lesson plans. ONC's new initiative, Ship2Shore Marine Educators (S2SME), enables educators to learn first hand about marine science and technology by going to sea on a maintenance/research cruise. While at sea Marine Educators (ME) participate in technology deployments, assist with water and core sampling, write daily blogs, produce short video updates, develop learning resources and conduct presentations to students on shore via video conferencing. MEs participating in the last NC cruise -"Wiring the Abyss 2012" - were fascinated with being a part of science in the real world. They had an experience of a lifetime and anticipate incorporating what they have learned into their lessons during the upcoming semester. Outreach between the MEs and ONC communication staff aboard the ship resulted in nearly 7,000 unique visitors to the "Wiring the Abyss 2012'' cruise website. Live ROPOS video feeds (~ 9,000 views), highlight videos (436 views/day), daily blogs (~1200 views) and stunning images (~391 views/day) were among the top rated pages. Visitors from 10 countries tuned in to "Wiring the Abyss 2012" and experienced the Pacific's deep sea! One of the best experiences for the MEs was connecting with students and teachers on shore via video conferencing. Roughly 300 students in BC and USA received a live connection from approximately 200km off the west coast. Students were most fascinated by a demo involving compressed Styrofoam cups, showing the intensity of pressure at the bottom of the sea. Successes: A positive working

  4. Effects of ship traffic on seabirds in offshore waters: implications for marine conservation and spatial planning.

    Science.gov (United States)

    Schwemmer, Philipp; Mendel, Bettina; Sonntag, Nicole; Dierschke, Volker; Garthe, Stefan

    2011-07-01

    Most anthropogenic influences on marine ecosystems, except for river- or terrestrial-borne pollution, involve some sort of vessel activity. Increasing anthropogenic activities mean that many countries are being forced to develop spatial planning schemes, while at the same time implementing conservation sites for sensitive species at sea. The effects of ship traffic on seabirds sensitive to human disturbance are currently too poorly understood to allow for the development of proper planning and conservation guidelines. We therefore used aerial surveys and experimental disturbance to elucidate the effects of passing ships on the distribution patterns, habitat loss, and species-specific flight reactions of birds, as well as the potential for habituation. Loons (Gavia spp.) showed clear avoidance of areas with high shipping intensity. Flush distances of four sea duck species differed significantly, with the longest distances recorded for Common Scoters (Melanitta nigra) and the shortest for Common Eiders (Somateria mollissima). Flush distance was positively related to flock size. Among all the sea duck species studied, the duration of temporary habitat loss was longest for Common Scoters. We found indications of habituation in sea ducks within areas of channeled traffic. However, it is questionable if habituation to free-ranging ships is likely to occur, because of their unpredictable nature. We therefore recommend that spatial planning should aim to channel ship traffic wherever possible to avoid further habitat fragmentation and to allow for habituation, at least in some species. Information on the effects of shipping on other seabird species and during different periods of the year is urgently needed, together with information on the effects of different types of boats, including recreational and fishing vessels.

  5. Ultimate Strength of Ship Hulls under Torsion

    DEFF Research Database (Denmark)

    Paik, Jeom Kee; Thayamballi, Anil K.; Pedersen, Preben Terndrup

    2001-01-01

    For a ship hull with large deck openings such as container vessels and some large bulk carriers, the analysis of warping stresses and hatch opening deformations is an essential part of ship structural analyses. It is thus of importance to better understand the ultimate torsional strength characte......For a ship hull with large deck openings such as container vessels and some large bulk carriers, the analysis of warping stresses and hatch opening deformations is an essential part of ship structural analyses. It is thus of importance to better understand the ultimate torsional strength...... characteristics of ships with large hatch openings. The primary aim of the present study is to investigate the ultimate strength characteristics of ship hulls with large hatch openings under torsion. Axial (warping) as well as shear stresses are normally developed for thin-walled beams with open cross sections...... analyses, it is shown that the influence of torsion induced warping stresses on the ultimate hull girder bending strength is small for ductile hull materials while torsion induced shear stresses will of course reduce the ship hull ultimate bending moment....

  6. Arctic shipping emissions inventories and future scenarios

    Directory of Open Access Journals (Sweden)

    J. J. Corbett

    2010-10-01

    Full Text Available This paper presents 5 km×5 km Arctic emissions inventories of important greenhouse gases, black carbon and other pollutants under existing and future (2050 scenarios that account for growth of shipping in the region, potential diversion traffic through emerging routes, and possible emissions control measures. These high-resolution, geospatial emissions inventories for shipping can be used to evaluate Arctic climate sensitivity to black carbon (a short-lived climate forcing pollutant especially effective in accelerating the melting of ice and snow, aerosols, and gaseous emissions including carbon dioxide. We quantify ship emissions scenarios which are expected to increase as declining sea ice coverage due to climate change allows for increased shipping activity in the Arctic. A first-order calculation of global warming potential due to 2030 emissions in the high-growth scenario suggests that short-lived forcing of ~4.5 gigagrams of black carbon from Arctic shipping may increase global warming potential due to Arctic ships' CO2 emissions (~42 000 gigagrams by some 17% to 78%. The paper also presents maximum feasible reduction scenarios for black carbon in particular. These emissions reduction scenarios will enable scientists and policymakers to evaluate the efficacy and benefits of technological controls for black carbon, and other pollutants from ships.

  7. Satellite measurements of formaldehyde from shipping emissions

    Directory of Open Access Journals (Sweden)

    T. Marbach

    2009-04-01

    Full Text Available International shipping is recognized as a pollution source of growing importance, in particular in the remote marine boundary layer. Nitrogen dioxide originating from ship emissions has previously been detected in satellite measurements. This study presents the first satellite measurements of formaldehyde (HCHO linked to shipping emissions as derived from observations made by the Global Ozone Monitoring Experiment (GOME instrument.

    We analyzed enhanced HCHO tropospheric columns from shipping emissions over the Indian Ocean between Sri Lanka and Sumatra. This region offers good conditions in term of plume detection with the GOME instrument as all ship tracks follow a single narrow track in the same east-west direction as used for the GOME pixel scanning. The HCHO signal alone is weak but could be clearly seen in the high-pass filtered data. The line of enhanced HCHO in the Indian Ocean as seen in the 7-year composite of cloud free GOME observations clearly coincides with the distinct ship track corridor from Sri Lanka to Indonesia. The observed mean HCHO column enhancement over this shipping route is about 2.0×1015 molec/cm2.

    The observed HCHO pattern also agrees qualitatively well with results from the coupled earth system model ECHAM5/MESSy applied to atmospheric chemistry (EMAC. However, the modelled HCHO values over the ship corridor are two times lower than in the GOME high-pass filtered data. This might indicate that the used emission inventories are too low and/or that the in-plume chemistry taking place in the narrow path of the shipping lanes are not well represented at the rather coarse model resolution.

  8. Insight of The New Shipping Structure

    Institute of Scientific and Technical Information of China (English)

    Wang Siyuan

    2009-01-01

    @@ Last year,the financial crisis sourced in USA caused shipping market to decline.All at once,global economy's environment,industrial structure,capital value and supply chain structure changed greatly,marking the beginning of world economic fission.Great fission brings chances of great consolidation.Just one year after the financial crisis broke out,shipping industry participants are standing at the point of consolidation,considering a light,strong,clear strategy for this new shipping and trade industrial trend.

  9. Liner Shipping Service Scheduling with Workshift Costs

    DEFF Research Database (Denmark)

    Reinhardt, Line Blander

    Container shipping companies are currently facing combined challenges of overcapacity and volatile fuel prices. In addition, rising concerns about greenhouse gas emissions has made it crucial for shipping companies to reduce their fuel consumption. The consumption of fuel for shipping vessel...... while ensuring that given transit time limits for the carried cargo is satisfied, and considering the layover time for containers transshipping between services. Workshift times and cost are included ensuring that changing the port visit time will not introduce an addition cost for the port operations...

  10. Carbon dioxide, temperature, and salinity collected via surface underway survey from NOAA Ship David Starr Jordan off the West Coast of the US and Mexico from 2006-08-06 to 2007-10-28 (NODC Accession 0084176)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0084176 includes chemical, physical, and underway - surface data collected aboard NOAA Ship DAVID STARR JORDAN in Channel Islands National Marine...

  11. Ship-induced solitary Riemann waves of depression in Venice Lagoon

    Energy Technology Data Exchange (ETDEWEB)

    Parnell, Kevin E. [College of Marine and Environmental Sciences and Centre for Tropical Environmental and Sustainability Sciences, James Cook University, Queensland 4811 (Australia); Institute of Cybernetics at Tallinn University of Technology, Akadeemia tee 21, 12618 Tallinn (Estonia); Soomere, Tarmo, E-mail: soomere@cs.ioc.ee [Institute of Cybernetics at Tallinn University of Technology, Akadeemia tee 21, 12618 Tallinn (Estonia); Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn (Estonia); Zaggia, Luca [Institute of Marine Sciences, National Research Council, Castello 2737/F, 30122 Venice (Italy); Rodin, Artem [Institute of Cybernetics at Tallinn University of Technology, Akadeemia tee 21, 12618 Tallinn (Estonia); Lorenzetti, Giuliano [Institute of Marine Sciences, National Research Council, Castello 2737/F, 30122 Venice (Italy); Rapaglia, John [Sacred Heart University Department of Biology, 5151 Park Avenue, Fairfield, CT 06825 (United States); Scarpa, Gian Marco [Università Ca' Foscari, Dorsoduro 3246, 30123 Venice (Italy)

    2015-03-06

    We demonstrate that ships of moderate size, sailing at low depth Froude numbers (0.37–0.5) in a navigation channel surrounded by shallow banks, produce depressions with depths up to 2.5 m. These depressions (Bernoulli wakes) propagate as long-living strongly nonlinear solitary Riemann waves of depression substantial distances into Venice Lagoon. They gradually become strongly asymmetric with the rear of the depression becoming extremely steep, similar to a bore. As they are dynamically similar, air pressure fluctuations moving over variable-depth coastal areas could generate meteorological tsunamis with a leading depression wave followed by a devastating bore-like feature. - Highlights: • Unprecedently deep long-living ship-induced waves of depression detected. • Such waves are generated in channels with side banks under low Froude numbers. • The propagation of these waves is replicated using Riemann waves. • Long-living waves of depression form bore-like features at rear slope.

  12. Mobile measurements of ship emissions in two harbour areas in Finland

    Directory of Open Access Journals (Sweden)

    L. Pirjola

    2013-08-01

    Full Text Available Four measurement campaigns by a mobile laboratory van were performed in two different environments; inside the harbour areas in the city center of Helsinki and along the narrow shipping channel near the city of Turku, Finland, during the winter and summer conditions in 2010–2011. The characteristics of gaseous (CO, CO2, SO2, NO, NO2, NOx and particulate (number and volume size distributions as well as PM2.5 emissions for 11 ships regularly operating on the Baltic Sea were studied to determine the emission parameters. The highest particle concentrations were 1.5 × 106 and 1.6 × 105 cm−3 in Helsinki and Turku, respectively, and the particle number size distributions had two modes. The dominating mode was peaking at 20–30 nm and the accumulation mode at 80–100 nm. The majority of the particle mass was volatile since after heating the sample to 265 °C, the particle volume of the studied ships decreased by around 70%. The emission factors for NOx varied in the range of 25–100 g (kg fuel−1, for SO2 in the range of 2.5–17.0 g (kg fuel−1, for particle number in the range of (0.32–2.26 × 1016 particles (kg fuel−1, and for PM2.5 between 1.0–4.9 g (kg fuel−1. The ships equipped with SCR had lowest NOx emissions whereas the ships with DWI and HAM had lowest SO2 emissions but highest particulate emissions. For all ships the averaged fuel sulphur contents (FSCs were less than 1% (by mass but none of those was below 0.1% which will be the new EU directive from 1 January 2015 in the SOx Emission Control Areas, indicating big challenges for ships operating on the Baltic Sea.

  13. SYNCHRONOUS EFFECT OF SLIPPING HEAVY LOADS ON RO-RO SHIP ROLLING IN WAVES

    Institute of Scientific and Technical Information of China (English)

    ZHANG Yin-long; SHEN Qing; CHEN Xu-jun

    2006-01-01

    Common effect of wave and slip of internal vehicles will make rolling of the roll-on ship serious. This is one of the important reasons for overturn of ro-ro ships. The multibody system with a floating base is composed of ro-ro ship and slipping vehicles.Takes the rolling angle of the ship and the transverse displacements of the slipping vehicles on desk as freedoms. Making use of the analysis of apparent gravitation and apparent buoyancy, the wave rolling moment is derived. By means of dynamic method of multibody system, dynamic equations of the system are established. Taking a certain channel ferry as an example, a set of numerical calculation have been carried out for rolling response of the multibody system with a floating base of a ro-ro ship and displacements response of the slipping vehicles under common effect of free slipping vehicles and wave, and a conclusion has been drawn that the motion of the numerous free slipping heavy loads will trend to be synchronous under restraining of the side-wall bulkhead with time because of repeated collision.

  14. How to Ship Food Gifts without Risk

    Science.gov (United States)

    Skip navigation U.S. National Library of Medicine Menu ... Ship Food Gifts Without Risk Even foods that are smoked, cured or fully cooked should be kept cold, experts advise To use the sharing features ...

  15. AIS Ship Traffic: Hawaii: 2011-2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Ship position data from a satellite-based Automatic Identification System (AIS) were obtained jointly by PacIOOS (J. Potemra), SOEST/ORE of the University of Hawaii...

  16. Ship dynamics for maritime ISAR imaging.

    Energy Technology Data Exchange (ETDEWEB)

    Doerry, Armin Walter

    2008-02-01

    Demand is increasing for imaging ships at sea. Conventional SAR fails because the ships are usually in motion, both with a forward velocity, and other linear and angular motions that accompany sea travel. Because the target itself is moving, this becomes an Inverse- SAR, or ISAR problem. Developing useful ISAR techniques and algorithms is considerably aided by first understanding the nature and characteristics of ship motion. Consequently, a brief study of some principles of naval architecture sheds useful light on this problem. We attempt to do so here. Ship motions are analyzed for their impact on range-Doppler imaging using Inverse Synthetic Aperture Radar (ISAR). A framework for analysis is developed, and limitations of simple ISAR systems are discussed.

  17. Communication from the Radioactive Shipping Service

    CERN Multimedia

    DDGS Unit

    2011-01-01

    The radioactive materials Import/Export service reminds you that all movements of potentially radioactive material must be declared in advance. For exports, shipping requests must be made via the EDH request form, ticking the box “radioactive material”. For imports, an electronic form must be completed before the arrival of the material. Requests which do not comply with the above procedure and any unauthorized imports of radioactive material will be refused.The same applies to imports/exports of radioactive sources. All necessary information is given in the web site: http://cern.ch/service-rp-shipping Yann Donjoux / Radioactive Shipping Service Phone: +41 22 767.31.71 Fax: +41 22 766.92.00 Email: service-rp-shipping@cern.ch

  18. Holistic control of ship noise emissions

    OpenAIRE

    Borelli Davide; Gaggero Tomaso; Rizzuto Enrico; Schenone Corrado

    2016-01-01

    The sustainability of anthropogenic activities at sea is recently gaining more and more attention. As regards shipping, emissions from ships into the environment of various nature (engine exhaust gases, anti-fouling paints leaching, ballast exchange, releases at sea of oil and other noxious liquid or solid cargoes, of sewage and of garbage) have been recognized as sources of pollution and therefore controlled and limited since a long time. The subject of noise emission...

  19. Superconducting Electric Machines for Ship Propulsion.

    Science.gov (United States)

    1977-02-14

    ship propulsion applications. These concepts evolved from previous work at MIT on superconducting AC machines. The superconducting machines considered were: (1) multipole, low-speed motors, (2) torque compensated motors, (3) high-speed generator, (4) rotating air-gap armature induction motor, (5) thyristor switched AC motors. The first four machine types were studied theoretically while experimental models were constructed of the last two. Preliminary designs were completed...of the five mahcines for an appropriate ship ... propulsion application. In

  20. "E-Hun" for International Shipping

    Institute of Scientific and Technical Information of China (English)

    Guo Yan

    2009-01-01

    @@ As part of the ten industrial revitalization plan,shipbuilding industry attracts the society's attention.According to the latest data from China Association of National Shipbuilding Industry,in the first quarter of 2009,there was hardly any new ship order,while the key shipbuilding companies under monitoring only got new ship orders of 440,000 dead weight tonnes(DWT),down by 95.6% from those of the same period in 2008.

  1. Ships as future floating farm systems?

    Science.gov (United States)

    Moustafa, Khaled

    2016-09-29

    Environmental and agriculture challenges such as severe drought, desertification, sprawling cities and shrinking arable lands in large regions in the world compel us to think about alternative and sustainable farming systems. Ongoing projects to build floating cities in the sea suggest that building specific ships for farming purposes (as farming ships or farming boats) would also be attainable to introduce new farming surfaces and boost food production worldwide to cope with food insecurity issues.

  2. Evaluation of the Service Performance of Ships

    DEFF Research Database (Denmark)

    Andersen, Poul; Borrod, Anne-Sophie; Blanchot, Hervé

    2005-01-01

    of voyages for the same ship. The procedure has been applied to two ships that are identical, with the exception that one has a conventional propeller, whereas the other one is fitted with a high-efficiency propeller of the KAPPEL type. The results are obtained from a period of 2 years steaming for both...... vessels. They clearly confirm the increase of propulsive efficiency obtained with the KAPPEL propeller in the order of magnitude of 4%....

  3. China's Guess of Ship Financinc

    Institute of Scientific and Technical Information of China (English)

    Xu Hua

    2012-01-01

    As the financial crisis intensifies, many western ship owners and monetary sectors focus their attention on China's capital. , There are not only good expectations but also fierce criticisms.Thus, how on earth will China's shipping capital meet the challenges of the world? Like pulling the chestnut out of fire, how to seize the business opportunity concealed in the crisis in order to draw on advantages and avoid disadvantages?

  4. A "broken heart" on a cruise ship.

    Science.gov (United States)

    Taylor, Christopher

    2015-01-01

    An elderly female cruise ship passenger developed chest pain shortly after an emotionally charged incident involving shipboard authorities. The electrocardiogram and cardiac enzyme profile were indicative of myocardial infarction but the final diagnosis, established after aeromedical evacuation, was stress-related cardiomyopathy. This case is an example of a relatively unknown clinical entity that is easily mistaken for acute myocardial infarction and which may be disproportionately prevalent in the cruise ship passenger population.

  5. Staphylococcal food poisoning on a cruise ship.

    OpenAIRE

    Waterman, S H; Demarcus, T. A.; Wells, J G; Blake, P A

    1987-01-01

    Two waves of vomiting and/or diarrhoea affected approximately 215 of the 715 passengers on a Caribbean cruise ship. The outbreak was independently associated with eating cream-filled pastries at two separate meals. Staphylococcus aureus phage type 85/+ was isolated from cases and pastry cooks, but not from controls. This is the first well-documented outbreak of staphylococcal food poisoning on a cruise ship.

  6. Channel Access Algorithm Design for Automatic Identification System

    Institute of Scientific and Technical Information of China (English)

    Oh Sang-heon; Kim Seung-pum; Hwang Dong-hwan; Park Chan-sik; Lee Sang-jeong

    2003-01-01

    The Automatic Identification System (AIS) is a maritime equipment to allow an efficient exchange of the navigational data between ships and between ships and shore stations. It utilizes a channel access algorithm which can quickly resolve conflicts without any intervention from control stations. In this paper, a design of channel access algorithm for the AIS is presented. The input/output relationship of each access algorithm module is defined by drawing the state transition diagram, dataflow diagram and flowchart based on the technical standard, ITU-R M.1371. In order to verify the designed channel access algorithm, the simulator was developed using the C/C++ programming language. The results show that the proposed channel access algorithm can properly allocate transmission slots and meet the operational performance requirements specified by the technical standard.

  7. Modelling of U-tube Tanks for ShipMo3D Ship Motion Predictions

    Science.gov (United States)

    2012-01-01

    intentionally left blank. ii DRDC Atlantic ECR 2011-300 Executive summary Modelling of U-tube Tanks for ShipMo3D Ship Motion Predictions Kevin McTaggart... ECR 2011-300 iii Sommaire Modelling of U-tube Tanks for ShipMo3D Ship Motion Predictions Kevin McTaggart ; DRDC Atlantic ECR 2011-300 ; Recherche et...Direction, Generic Frigate at 10 knots in Sea State 5, Different U-tube Tank Duct Heights DRDC Atlantic ECR 2011-300 19 6 Conclusions Modelling of U-tube

  8. Ship design methodologies of preliminary design

    CERN Document Server

    Papanikolaou, Apostolos

    2014-01-01

    This book deals with ship design and in particular with methodologies of the preliminary design of ships. The book is complemented by a basic bibliography and five appendices with useful updated charts for the selection of the main dimensions and other basic characteristics of different types of ships (Appendix A), the determination of hull form  from the data of systematic hull form series (Appendix B), the detailed description of the relational method for the preliminary estimation of ship weights (Appendix C), a brief review of the historical evolution of shipbuilding science and technology from the prehistoric era to date (Appendix D) and finally a historical review of regulatory developments of ship's damage stability to date (Appendix E).  The book can be used as textbook for ship design courses or as additional reading for university or college students of naval architecture courses and related disciplines; it may also serve as a reference book for naval architects, practicing engineers of rel...

  9. Infrared ship/decoy/missile encounter model

    Science.gov (United States)

    Morin, Josee; Reid, Francoise; Morin, Andre

    1993-08-01

    Simulations of missile-ship-countermeasures engagements are used to determine the effective ways of defending a ship against infrared-guided missile threats. This paper describes one type of simulation that models the engagement of a ship deploying IR decoys by an infrared-guided seeker-head missile. This model was developed to assess the efficiency of IR decoys in protecting ships against these missiles. The simulation, Missile Infrared Decoy And Ship (MIDAS), is composed of three major blocks, the infrared scene generation, the seeker simulation and the missile dynamics simulation. The infrared scene generation block produces a three-dimensional IR scene from the target ship and flare models and transforms it into the two-dimensional IR image viewed by the seeker. The seeker simulation block is based on a generic conical scan seeker which uses a crossed-detector array for target detection. It processes the IR image to select a target and generates a steering command. The missile dynamics block computes the changes in missile trajectory according to the seeker steering command. The computations performed by each of the three blocks are explained in detail.

  10. Structural health monitoring for ship structures

    Energy Technology Data Exchange (ETDEWEB)

    Farrar, Charles [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory; Angel, Marian [Los Alamos National Laboratory; Bement, Matthew [Los Alamos National Laboratory; Salvino, Liming [NSWC, CADEROCK

    2009-01-01

    Currently the Office of Naval Research is supporting the development of structural health monitoring (SHM) technology for U.S. Navy ship structures. This application is particularly challenging because of the physical size of these structures, the widely varying and often extreme operational and environmental conditions associated with these ships missions, lack of data from known damage conditions, limited sensing that was not designed specifically for SHM, and the management of the vast amounts of data that can be collected during a mission. This paper will first define a statistical pattern recognition paradigm for SHM by describing the four steps of (1) Operational Evaluation, (2) Data Acquisition, (3) Feature Extraction, and (4) Statistical Classification of Features as they apply to ship structures. Note that inherent in the last three steps of this process are additional tasks of data cleansing, compression, normalization and fusion. The presentation will discuss ship structure SHM challenges in the context of applying various SHM approaches to sea trials data measured on an aluminum multi-hull high-speed ship, the HSV-2 Swift. To conclude, the paper will discuss several outstanding issues that need to be addressed before SHM can make the transition from a research topic to actual field applications on ship structures and suggest approaches for addressing these issues.

  11. A building cost estimation method for inland ships

    NARCIS (Netherlands)

    Hekkenberg, R.G.

    2014-01-01

    There is very little publicly available data about the building cost of inland ships, especially for ships that have dimensions that differ significantly from those of common ships. Also, no methods to determine the building cost of inland ships are described in literature. In this paper, a method t

  12. 33 CFR 158.240 - Ship repair yards.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Ship repair yards. 158.240... Facilities: Oily Mixtures § 158.240 Ship repair yards. The reception facility that services oceangoing ships using a ship repair yard must have a capacity for receiving— (a) An amount of ballast from bunker...

  13. 46 CFR 169.817 - Master to instruct ship's company.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Master to instruct ship's company. 169.817 Section 169.817 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Operations § 169.817 Master to instruct ship's company. The master shall conduct drills and...

  14. Dynamic analysis of multibodies system with a floating base for rolling of ro-ro ship caused by wave and slip of heavy load

    Institute of Scientific and Technical Information of China (English)

    SHEN Qing; LI Yue; CHEN Xu-jun

    2003-01-01

    Common effect of wave and slip of internal heavy load will make rolling of the roll-on ship serious. This is one of the important reasons for overturn of ro-ro ships. The multibodies System with a floating base is composed of ro-ro ship and slipping heavy load. This paper takes the rolling angle of the ship and the transverse displacement of the heavy load on desk as two freedoms. Making use of analysis of apparent gravitation and apparent buoyancy, the wave rolling moment is derived. By use of dynamic method of multibodies system with a floating base, dynamic equations of the system are established. Taking a certain channel ferry as an example, a set of numerical calculation have been carried out for rolling response of the ship and displacement response of the slipping heavy load under common effect of synchro-slipping heavy loads and wave.

  15. Brands & Channels

    Institute of Scientific and Technical Information of China (English)

    Alice Yang

    2009-01-01

    @@ "Brands" and "Channels" are the two most important things in Ku-Hai Chen's eyes when doing business with Main-land China. Ku-Hai Chen, Executive Director of the International Trade Institute of Taiwan External Trade Development Council (TAITRA), flies frequently between Chinese Taipei and Mainland China, and was in Beijing earlier this month for his seminar.

  16. Positron Channeling

    CERN Document Server

    Badikyan, Karen

    2016-01-01

    The possibility of channeling the low-energy relativistic positrons around separate crystallographic axes with coaxial symmetry of negative ions in some types of crystals is shown. The process of annihilation of positrons with electrons of medium was studied in detail.

  17. Effect of the Environment and Environmental Uncertainty on Ship Routes

    Science.gov (United States)

    2012-06-01

    Naval Research Laboratory NWP Numerical Weather Prediction NWS National Weather Service OTSR Optimal Track Ship Routing POL Petroleum, Oil...model. The global NCOM provides surface boundary conditions, which in turn are provided by the NOGAPS ( National Weather Service [NWS], 2009). NCOM...DESCRIPTION = San Diego CA to Guam PASSAGE = San Diego CA to Guam SHIP NAME = EFAS SHIP CLASS = DD963.DAT SHIP FOR DRAFT = 11.7 SHIP AFT DRAFT

  18. Littoral Combat Ship Open Ocean Anti-Submarine Warfare

    Science.gov (United States)

    2014-06-01

    COVERED Capstone 4. TITLE AND SUBTITLE LITTORAL COMBAT SHIP OPEN OCEAN ANTI-SUBMARINE WARFARE 5. FUNDING NUMBERS 6. AUTHOR(S) 311-124O/Team LCS...Life cycle cost LCCE Life cycle cost estimate LCS Littoral combat ship LHA Landing ship, helicopter assault LHD Landing ship, helicopter...is unlimited LITTORAL COMBAT SHIP OPEN OCEAN ANTI- SUBMARINE WARFARE by Team LCS 311-124O June 2014 Capstone Advisors: John Green Dan

  19. Arctic shipping emissions inventories and future scenarios

    Directory of Open Access Journals (Sweden)

    J. J. Corbett

    2010-04-01

    Full Text Available The Arctic is a sensitive region in terms of climate change and a rich natural resource for global economic activity. Arctic shipping is an important contributor to the region's anthropogenic air emissions, including black carbon – a short-lived climate forcing pollutant especially effective in accelerating the melting of ice and snow. These emissions are projected to increase as declining sea ice coverage due to climate change allows for increased shipping activity in the Arctic. To understand the impacts of these increased emissions, scientists and modelers require high-resolution, geospatial emissions inventories that can be used for regional assessment modeling. This paper presents 5 km×5 km Arctic emissions inventories of important greenhouse gases, black carbon and other pollutants under existing and future (2050 scenarios that account for growth of shipping in the region, potential diversion traffic through emerging routes, and possible emissions control measures. Short-lived forcing of ~4.5 gigagrams of black carbon from Arctic shipping may increase climate forcing; a first-order calculation of global warming potential due to 2030 emissions in the high-growth scenario suggests that short-lived forcing of ~4.5 gigagrams of black carbon from Arctic shipping may increase climate forcing due to Arctic ships by at least 17% compared to warming from these vessels' CO2 emissions (~42 000 gigagrams. The paper also presents maximum feasible reduction scenarios for black carbon in particular. These emissions reduction scenarios will enable scientists and policymakers to evaluate the efficacy and benefits of technological controls for black carbon, and other pollutants from ships.

  20. Channel Power in Multi-Channel Environments

    NARCIS (Netherlands)

    M.G. Dekimpe (Marnik); B. Skiera (Bernd)

    2004-01-01

    textabstractIn the literature, little attention has been paid to instances where companies add an Internet channel to their direct channel portfolio. However, actively managing multiple sales channels requires knowing the customers’ channel preferences and the resulting channel power. Two key compon

  1. Impact of sulfur content regulations of shipping fuel on coastal air quality

    Science.gov (United States)

    Seyler, André; Wittrock, Folkard; Kattner, Lisa; Mathieu-Üffing, Barbara; Weigelt, Andreas; Peters, Enno; Richter, Andreas; Schmolke, Stefan; Burrows, John P.

    2016-04-01

    Shipping traffic is a sector that faces an enormous growth rate and contributes substantially to the emissions from the transportation sector, but lacks regulations and controls. Shipping is not enclosed in the Kyoto Protocol. However, the International Maritime Organization (IMO) introduced sufhur limits for marine heavy fuels, nitrogen oxide limits for newly-built ship engines and established Emission Control Areas (ECA) in the North and Baltic Sea as well as around North America with the International Convention for the Prevention of Pollution from Ships (MARPOL 73/78 Annex VI). Recently, on the 1st of January 2015, the allowed sulfur content of marine fuels inside Sulfur Emission Control Areas has been significantly decreased from 1.0% to 0.1%. However, measurements of reactive trace gases and the chemical composition of the marine troposphere along shipping routes are sparse and up to now there is no regular monitoring system available. The project MeSmarT (measurements of shipping emissions in the marine troposphere) is a cooperation between the University of Bremen, the German Federal Maritime and Hydrographic Agency (Bundesamt für Seeschifffahrt und Hydrographie, BSH) and the Helmholtz-Zentrum Geesthacht. This study aims to analyse the influence of shipping emissions on the coastal air quality by evaluating ground-based remote sensing measurements using the MAX-DOAS (Multi AXis Differential Optical Absorption Spectroscopy) technique. Measurements of the atmospheric trace gases nitrogen dioxide (NO2) and sulfur dioxide (SO2) have been carried out in the marine troposphere at the MeSmarT measurement sites in Wedel and on Neuwerk and on-board several ship cruises on the North and Baltic Sea. The capability of two-channel MAX-DOAS systems to do simultaneous measurements in the UV and visible spectral range has been used in the so called "onion-peeling" approach to derive spatial distributions of ship emissions and to analyse the movement of the exhausted

  2. Nonlinear channelizer

    Science.gov (United States)

    In, Visarath; Longhini, Patrick; Kho, Andy; Neff, Joseph D.; Leung, Daniel; Liu, Norman; Meadows, Brian K.; Gordon, Frank; Bulsara, Adi R.; Palacios, Antonio

    2012-12-01

    The nonlinear channelizer is an integrated circuit made up of large parallel arrays of analog nonlinear oscillators, which, collectively, serve as a broad-spectrum analyzer with the ability to receive complex signals containing multiple frequencies and instantaneously lock-on or respond to a received signal in a few oscillation cycles. The concept is based on the generation of internal oscillations in coupled nonlinear systems that do not normally oscillate in the absence of coupling. In particular, the system consists of unidirectionally coupled bistable nonlinear elements, where the frequency and other dynamical characteristics of the emergent oscillations depend on the system's internal parameters and the received signal. These properties and characteristics are being employed to develop a system capable of locking onto any arbitrary input radio frequency signal. The system is efficient by eliminating the need for high-speed, high-accuracy analog-to-digital converters, and compact by making use of nonlinear coupled systems to act as a channelizer (frequency binning and channeling), a low noise amplifier, and a frequency down-converter in a single step which, in turn, will reduce the size, weight, power, and cost of the entire communication system. This paper covers the theory, numerical simulations, and some engineering details that validate the concept at the frequency band of 1-4 GHz.

  3. Numerical simulation of PMM tests for a ship in close proximity to sidewall and maneuvering stability analysis

    Science.gov (United States)

    Liu, Han; Ma, Ning; Gu, Xie-chong

    2016-12-01

    As the maneuverability of a ship navigating close to a bank is influenced by the sidewall, the assessment of ship maneuvering stability is important. The hydrodynamic derivatives measured by the planar motion mechanism (PMM) test provide a way to predict the change of ship maneuverability. This paper presents a numerical simulation of PMM model tests with variant distances to a vertical bank by using unsteady RANS equations. A hybrid dynamic mesh technique is developed to realize the mesh configuration and remeshing of dynamic PMM tests when the ship is close to the bank. The proposed method is validated by comparing numerical results with results of PMM tests in a circulating water channel. The first-order hydrodynamic derivatives of the ship are analyzed from the time history of lateral force and yaw moment according to the multiple-run simulating procedure and the variations of hydrodynamic derivatives with the ship-sidewall distance are given. The straight line stability and directional stability are also discussed and stable or unstable zone of proportional-derivative (PD) controller parameters for directional stability is shown, which can be a reference for course keeping operation when sailing near a bank.

  4. The oscillations of ship lock bottom

    Directory of Open Access Journals (Sweden)

    N.Yu. Kuzmin

    2012-06-01

    Full Text Available The article deals with the dynamic characteristics of the ship lock. The accurate design relations intended to study the natural and forced vibrations of the bottom of the ship lock are provided. The degree of filling of the lock, as well as the added mass of water is considered. The various coupling conditions of the bottom and walls of buildings are taken into account. A concrete example of the calculation is given.An exact, in the framework of the adopted design scheme, solution of the problem of the own and forced vibrations of the bottom of the ship lock is found. The frequency of the first five tones of vibrations and the associated mass of liquid according to thickness of the structure and coupling conditions of the bottom and sides of the lock are analyzed. A significant effect of liquids on low-frequency part of the spectrum and the dynamic response of the bottom is determined.

  5. Orchestrating Transnational Environmental Governance in Maritime Shipping

    DEFF Research Database (Denmark)

    Lister, Jane; Taudal Poulsen, René; Ponte, Stefano

    2015-01-01

    —the International Maritime Organization. Drawing on original empirical evidence and archival data, we introduce a four-factor framework to investigate two main questions: why is shipping lagging in its environmental governance; and what is the potential for the International Maritime Organization to orchestrate...... emerging private ‘green shipping’ initiatives to achieve better ecological outcomes? Contributing to transnational governance theory, we find that conditions stalling regulatory progress include low environmental issue visibility, poor interest alignment, a broadening scope of environmental issues......Maritime shipping is the transmission belt of the global economy. It is also a major contributor to global environmental change through its under-regulated air, water and land impacts. It is puzzling that shipping is a lagging sector as it has a well-established global regulatory body...

  6. Underwater Explosion Damage of Ship Hull Panels

    OpenAIRE

    K. Rarnajeyathilagam; Vendhan, C.P.

    2003-01-01

    Underwater explosion is a major threat to ships and submarines in a war environment. The prediction of the mode and the extent of the failure is an essential step in designing for shock loading. The localised failure in a hull panel is severe compared to the global response of the ship. In this study, an attempt has been made to predict the response and failure modes of three types of hull panels (flat, concave, and convex). The shock loading on the hull panel has been estimated based on the ...

  7. Time constrained liner shipping network design

    DEFF Research Database (Denmark)

    Karsten, Christian Vad; Brouer, Berit Dangaard; Desaulniers, Guy

    2016-01-01

    We present a mathematical model and a solution method for the liner shipping network design problem. The model takes into account coordination between vessels and transit time restrictions on the cargo flow. The solution method is an improvement heuristic, where an integer program is solved...... iteratively to perform moves in a large neighborhood search. Our improvement heuristic is applicable as a real-time decision support tool for a liner shipping company. It can be used to find improvements to the network when evaluating changes in operating conditions or testing different scenarios....... Computational results on the benchmark suite LINER-LIB are reported....

  8. Strength of Ship Plates under Combined Loading

    DEFF Research Database (Denmark)

    Cui, W.; Wang, Y.; Pedersen, Preben Terndrup

    2002-01-01

    Strength of ship plates plays a significant role in the ultimate strength analysis of ship structures. In recent years several authors have proposed simplified analytical methods to calculate the ultimate strength of unstiffened plates. The majority of these investigations deal with plates....... The obtained results indicate that the simplified analytical method is able to determine the ultimate strength of unstiffened plates with imperfections in the form of welding-induced residual stresses and geometric deflections subjected to combined loads. Comparisons with experimental results show...

  9. Strength of ship plates under combined loading

    DEFF Research Database (Denmark)

    Cui, Weiching; Wang, Yongjun; Pedersen, Preben Terndrup

    2000-01-01

    Strength of ship plates plays a significant role for the ultimate strength analysis of ship structures. In recent years several authors have proposed simplified methods to calculate the ultimate strength of unstiffened plates. The majority of these investigations deal with plates subjected...... that the simplified method is able to determine the ultimate strength of unstiffened plates with imperfections in the form of welding induced residual stresses and geometric deflections subjected to combined loads. Comparisons with experimental results show that the procedure has sufficient accuracy for practical...

  10. Global Loads on FRP Ship Hulls

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup

    1997-01-01

    Fibre reinforced plastic (FRP) composites used for high-speed vessels have lower modulus of elasticity than the conventionally used steels.Therefore, for large fast ships the lowest natural frequencies of the global hull modes can be relatively low compared to the frequency of waveencounter....... As part of the NoKoS project it was decided to investigate the effect of hull flexibility on the wave-induced as well as accidental structural loads on high-speed ships.Especially it was decided to determine whether there is an upper size of FRP and aluminium mono-hulls caused by continuous wave action...

  11. Harmonic analysis of a cruise ship network

    Energy Technology Data Exchange (ETDEWEB)

    Guerin, P.; Miegeville, L. [GE44, France (France); Sahnouni, K. [Chantiers de l' Atlantique (France)

    2000-07-01

    The number and the power rating of equipment using power electronics have been increasing on board of the ships for many years. At present, the harmonic disturbance must be taken into account from the design stage in order to ensure the smooth running of the installation. This paper presents a harmonic analysis of the electrical distribution system of a cruise ship. The comparison between the evaluated and the real harmonic levels allows us to discuss about the interest and the limits of the estimates. (authors)

  12. Atypical myocardial infarction on a cruise ship.

    Science.gov (United States)

    Taylor, Christopher

    2015-01-01

    A previously asymptomatic 44-year-old male crewmember on a cruise ship experienced several brief episodes of acute chest pain within a short time frame. He was ultimately diagnosed with myocardial infarction; 5 h earlier he had been discharged from the ship's medical centre after almost 8 h of monitoring to rule-out infarction. Subsequent angiography ashore revealed a 99% occlusion of the right coronary artery. This case highlights the dangers of over-reliance on shipboard cardiac enzyme testing to clear a patient with chest pain.

  13. The superconducting MHD-propelled ship YAMATO-1

    Science.gov (United States)

    Sasakawa, Yohei; Takezawa, Setsuo; Sugawara, Yoshinori; Kyotani, Yoshihiro

    1995-04-01

    In 1985 the Ship & Ocean Foundation (SOF) created a committee under the chairmanship of Mr. Yohei Sasakawa, Former President of the Ship & Ocean Foundation, and began researches into superconducting magnetohydrodynamic (MHD) ship propulsion. In 1989 SOF set to construction of a experimental ship on the basis of theoretical and experimental researches pursued until then. The experimental ship named YAMATO-1 became the world's first superconducting MHD-propelled ship on her trial runs in June 1992. This paper describes the outline of the YAMATO-1 and sea trial test results.

  14. Challenges to Ship Hydrodynamics in the XXI Century

    Directory of Open Access Journals (Sweden)

    Lech Kobylinski

    2014-09-01

    Full Text Available The beginning of twenty-first century is characterized with important changes in world shipping and exploitation of ocean resources. Three important trends are clearly visible: environment protection, safety and economy. They materialize in important changes in the structure of world fleet where some existing ship types are going to disappear and new ship types emerge. Increasing the size of some ship types is another visible tendency. Stress on environment protection has serious impact on the hydrodynamic characteristics of ships whether with regard to safety zero accident rate is the goal. Important challenges to ship hydrodynamics caused by those tendencies are discussed in the paper.

  15. SENTINEL-1/2 Data for Ship Traffic Monitoring on the Danube River

    Science.gov (United States)

    Negula, I. Dana; Poenaru, V. D.; Olteanu, V. G.; Badea, A.

    2016-06-01

    After a long period of drought, the water level of the Danube River has significantly dropped especially on the Romanian sector, in July-August 2015. Danube reached the lowest water level recorded in the last 12 years, causing the blockage of the ships in the sector located close to Zimnicea Harbour. The rising sand banks in the navigable channel congested the commercial traffic for a few days with more than 100 ships involved. The monitoring of the decreasing water level and the traffic jam was performed based on Sentinel-1 and Sentinel-2 free data provided by the European Space Agency and the European Commission within the Copernicus Programme. Specific processing methods (calibration, speckle filtering, geocoding, change detection, image classification, principal component analysis, etc.) were applied in order to generate useful products that the responsible authorities could benefit from. The Sentinel data yielded good results for water mask extraction and ships detection. The analysis continued after the closure of the crisis situation when the water reached the nominal level again. The results indicate that Sentinel data can be successfully used for ship traffic monitoring, building the foundation of future endeavours for a durable monitoring of the Danube River.

  16. SENTINEL-1/2 DATA FOR SHIP TRAFFIC MONITORING ON THE DANUBE RIVER

    Directory of Open Access Journals (Sweden)

    I. Dana Negula

    2016-06-01

    Full Text Available After a long period of drought, the water level of the Danube River has significantly dropped especially on the Romanian sector, in July-August 2015. Danube reached the lowest water level recorded in the last 12 years, causing the blockage of the ships in the sector located close to Zimnicea Harbour. The rising sand banks in the navigable channel congested the commercial traffic for a few days with more than 100 ships involved. The monitoring of the decreasing water level and the traffic jam was performed based on Sentinel-1 and Sentinel-2 free data provided by the European Space Agency and the European Commission within the Copernicus Programme. Specific processing methods (calibration, speckle filtering, geocoding, change detection, image classification, principal component analysis, etc. were applied in order to generate useful products that the responsible authorities could benefit from. The Sentinel data yielded good results for water mask extraction and ships detection. The analysis continued after the closure of the crisis situation when the water reached the nominal level again. The results indicate that Sentinel data can be successfully used for ship traffic monitoring, building the foundation of future endeavours for a durable monitoring of the Danube River.

  17. Numerical Study on the Effect of Buffer Bow Structure in Ship-to-ship Collisions

    DEFF Research Database (Denmark)

    Yamada, Yasuhira; Endo, Hisayoshi; Pedersen, Preben Terndrup

    2005-01-01

    structure in ship-ship collisions as compared with that of standard bulbous bows. This is demonstrated by conducting a series of large-scale finite element analyses. The finite element analyses are conducted with the general-purpose nonlinear structural code “LS-DYNA”. The applied scenario is one where......) and the forward velocity of the struck ship on the collapse mode of the bow of the striking vessel are investigated. Collapse modes, contact forces and energy absorption capabilities of the buffer bows are compared with those of conventional bows....

  18. Transfer of structureborne sound to ship's cabins

    NARCIS (Netherlands)

    Regt, M.J.A.M. de

    1979-01-01

    In the laboratory the transfer of structureborne sound from a ship-like steel structure to cabin bulkheads has heen investigated for three types of bulkhead material: chipboard, plastic faced calcium silicate and steel plates sandwiching a rock wool core. The most relevant results of the investigati

  19. Statistical modelling for ship propulsion efficiency

    DEFF Research Database (Denmark)

    Petersen, Jóan Petur; Jacobsen, Daniel J.; Winther, Ole

    2012-01-01

    This paper presents a state-of-the-art systems approach to statistical modelling of fuel efficiency in ship propulsion, and also a novel and publicly available data set of high quality sensory data. Two statistical model approaches are investigated and compared: artificial neural networks...

  20. Radial-Gap Motor for Ship Propulsion

    Science.gov (United States)

    Yanamoto, Toshiyuki; Yokoyama, Minoru

    The KHI team has developed radial gap high-temperature superconducting (HTS) motors of three sizes, 1 MW-class, 3 MW, and 20 MW, to be used for electric propulsion systems for ships. The volumetric torque density of the assembled 3 MW HTS motor was recorded at 40 kNm/m3 in the load test; the world's highest in the class.

  1. Reconfigurable Control of a Ship Propulsion Plant

    DEFF Research Database (Denmark)

    Blanke, M.; Izadi-Zamanabadi, Roozbeh

    1998-01-01

    -tolerant control is a fairly new area. Thise paper presents a ship propulsion system as a benchmark that should be useful as a platform for the development of new ideas and a comparison of methods. The benchmark has two main elements. One is the development of efficient FDI algorithms, and the other...

  2. Business Rules Explicitation in Inland Shipping

    NARCIS (Netherlands)

    Leeuwen, Gerjen van; Versendaal, Johan

    2013-01-01

    Planning of transport through inland shipping is complex, highly dynamic and very specific. Existing software support is focusing on road transport planning and/or is merely a visual representation of shipments to be manually assigned to particular vessels. As a result inland shipment planning is ti

  3. Wave energy extraction using decommisioned ships

    DEFF Research Database (Denmark)

    Mansour, A.E.; Pedersen, Preben Terndrup; Paik, J.K.

    2013-01-01

    to scrap naval vessels in 2002 was $33.4 million. Now apparently the Navy sinks naval vessels by bombs and torpedos. Scrapping can cause pollution, health hazards, accidents and threat to the ecosystem. Can a “polluting” ship about to be scrapped be used to generate clean wave energy? Maybe! It is possible...

  4. IS INLAND SHIPPING NEEDED IN POLAND?

    Directory of Open Access Journals (Sweden)

    Ryszard Rolbiecki

    2014-06-01

    Full Text Available In Poland, inland shipping plays only a mariginal role in transport needs fulfillment. Inland shipping has a share of mere 0,3% in goods transport modal split. The reason for this is poor and variable technical parameters of inland waterways together with adverse legal regulations. Different situation takes place in Western European countries, in which the development of this mode of transport is viewed as a way of road transport develop-ment restraint. In Poland, the need to move some of the volume from road transport to in-land shipping is specifically observed within marine ports surroundings. Because of their complex nature, the investments in inland shipping infrastructure would also be helpful in solving the current problems of water management. Inland waterways in Poland guaran-tee neither an adequate level of flood protection, nor the water needs fulfillment of do-mestic economy. When it comes to water reserves, Poland is one of the most deficient countries in Europe. Thus there is a need to invest in inland waterways in Poland.

  5. Key Design Properties for Shipping Information Pipeline

    DEFF Research Database (Denmark)

    Jensen, Thomas; Tan, Yao-Hua

    2015-01-01

    This paper reports on the use of key design properties for development of a new approach towards a solution for sharing shipping information in the supply chain for international trade. Information exchange in international supply chain is extremely inefficient, rather uncoordinated, based largely...

  6. NOAA Ship Okeanos Explorer Video Collection

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — During each NOAA Ship Okeanos Explorer field season, full-resolution video in a ProRes 422 format at a bitrate of 145 Mbps is produced during each deployment of the...

  7. PARTICIPATION BASED MODEL OF SHIP CREW MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Toni Bielić

    2014-10-01

    Full Text Available 800x600 This paper analyse the participation - based model on board the ship as possibly optimal leadership model existing in the shipping industry with accent on decision - making process. In the paper authors have tried to define master’s behaviour model and management style identifying drawbacks and disadvantages of vertical, pyramidal organization with master on the top. Paper describes efficiency of decision making within team organization and optimization of a ship’s organisation by introducing teamwork on board the ship. Three examples of the ship’s accidents are studied and evaluated through “Leader - participation” model. The model of participation based management as a model of the teamwork has been applied in studying the cause - and - effect of accidents with the critical review of the communication and managing the human resources on a ship. The results have showed that the cause of all three accidents is the autocratic behaviour of the leaders and lack of communication within teams. Normal 0 21 false false false HR X-NONE X-NONE MicrosoftInternetExplorer4

  8. SYSTEM IDENTIFICATION OF SURFACE SHIP DYNAMICS.

    Science.gov (United States)

    The feasibility of applying a Newtonian system identification technique to a nonlinear three degree of freedom system of equations describing the...steering and maneuvering of a surface ship is investigated. The input to the system identification program is provided by both analog and digital

  9. Logistical Analysis of the Littoral Combat Ship

    Science.gov (United States)

    2003-03-01

    and CAPT Jeff Kline for sparking my interest in the Littoral Combat Ship and CAPT James Stewart at Commander, Naval Surface Forces Pacific and CDR...Senior Lecturer of Operations Research Naval Postgraduate School Monterey, California 76 10. James Stewart , CAPT, USN Warfare Requirements, N8

  10. Propagation of light through ship exhaust plumes

    NARCIS (Netherlands)

    Iersel, M. van; Mack, A.; Eijk, A.M.J. van; Schleijpen, H.M.A.

    2014-01-01

    Looking through the atmosphere, it is sometimes difficult to see the details of an object. Effects like scintillation and blur are the cause of these difficulties. Exhaust plumes of e.g. a ship can cause extreme scintillation and blur, making it even harder to see the details of what lies behind the

  11. Exergy Analysis of Complex Ship Energy Systems

    Directory of Open Access Journals (Sweden)

    Pierre Marty

    2016-04-01

    Full Text Available With multiple primary and secondary energy converters (diesel engines, steam turbines, waste heat recovery (WHR and oil-fired boilers, etc. and extensive energy networks (steam, cooling water, exhaust gases, etc., ships may be considered as complex energy systems. Understanding and optimizing such systems requires advanced holistic energy modeling. This modeling can be done in two ways: The simpler approach focuses on energy flows, and has already been tested, approved and presented; a new, more complicated approach, focusing on energy quality, i.e., exergy, is presented in this paper. Exergy analysis has rarely been applied to ships, and, as a general rule, the shipping industry is not familiar with this tool. This paper tries to fill this gap. We start by giving a short reminder of what exergy is and describe the principles of exergy modeling to explain what kind of results should be expected from such an analysis. We then apply these principles to the analysis of a large two-stroke diesel engine with its cooling and exhaust systems. Simulation results are then presented along with the exergy analysis. Finally, we propose solutions for energy and exergy saving which could be applied to marine engines and ships in general.

  12. Probabilistic Damage Stability Calculations for Ships

    DEFF Research Database (Denmark)

    Jensen, Jørgen Juncher

    1996-01-01

    The aim of these notes is to provide background material for the present probabilistic damage stability rules fro dry cargo ships.The formulas for the damage statistics are derived and shortcomings as well as possible improvements are discussed. The advantage of the definiton of fictitious...

  13. Network Design Models for Container Shipping

    DEFF Research Database (Denmark)

    Reinhardt, Line Blander; Kallehauge, Brian; Nielsen, Anders Nørrelund

    This paper presents a study of the network design problem in container shipping. The paper combines the network design and fleet assignment problem into a mixed integer linear programming model minimizing the overall cost. The major contributions of this paper is that the time of a vessel route...

  14. Design and evaluation of ship's power plants

    NARCIS (Netherlands)

    Meijer, G.J.; Nienhuis, U.; Vugt, J. van; Folkersma, W.

    1999-01-01

    The cruise industry is host to major changes in the way the skip's power plants are configured. Diesel-electric propulsion has replaced most diesel-mechanic systems for larger ships. Podded propulsion is making serious headway and gas turbines are currently under order. In future, fuel cells, perman

  15. EX1101: Ship Shakedown and Patch Tests on NOAA Ship Okeanos Explorer (EM302)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This project will involve the shakedown of all Okeanos Explorer ship capabilities and a patch test of the Kongsberg EM302 multibeam system. Operations for this...

  16. INFLUENCE OF OPERABILITY CRITERIA LIMITING VALUES ON SHIP SPEED

    Directory of Open Access Journals (Sweden)

    Jasna Prpić-Oršić

    2016-09-01

    Full Text Available When the ship is caught in heavy seas, there are two manoeuvres that the shipmaster can undertake to avoid excessive ship motion and hull damage: changing course or voluntary speed reduction. This paper presents a study of the effect of the various voluntary speed reduction criteria to attainable speed of ship on seaway. The speed loss is calculated by taking into account wind and wave effect on ship speed, the engine and propeller performance in actual seas as well as the mass inertia of the ship. The attainable ship speed for ship in head, following and beam waves by accounting for voluntary speed reduction is estimated for various significant wave height. The criteria of slamming, deck wetness, propeller emergence, excessive accelerations and roll are taken into account. The impact of variations of the limiting values of certain criteria due to which the captain intentionally reduces the ship speed is analysed and discussed.

  17. Study of the ship design process model for collaborative design

    Science.gov (United States)

    He, Ze; Qiu, Chang-Hua; Wang, Neng-Jian

    2005-09-01

    The ship design process model is the basis for developing the ship collaborative design system under network environment. According to the characteristics of the ship design, a method for dividing the ship design process into, three layers is pat forward, that is project layer, design task layer and design activity layer, then the formalized definitions of the ship design process model, the decomposing principles of the ship design process and the architecture of the ship collaborative design (SDPM) system are presented. This method simplifies the activity network makes the optimization and adjustment of the design plan convenient and also makes the design process easier to control and change, at last the architecture of the ship collaborative design system is discussed.

  18. Process Analysis in Container Shipping Network Structure Form Change

    Directory of Open Access Journals (Sweden)

    Chen Chao

    2012-03-01

    Full Text Available Being aimed at the influence of ship-size and cargo-demand changes on container shipping networks, to reveal the evolution process of container shipping networks structure form, this paper respectively designed the operation models for two major container shipping networks structure forms: Multi-port-calling network and Hub-and-spoke network, to maximizing the investment efficiency. Based on the above models, a comprehensively integrated operation model of container shipping networks is built and the evolution process of container shipping networks structure form with changing of both ship-size and cargo demands is analyzed. Finally, through a case study, results show that the comprehensive integrated operation model is very effective in the analysis of evolution process of container shipping networks structure forms.

  19. Study of the ship design process model for collaborative design

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    The ship design process model is the basis for developing the ship collaborative design system under network environment.According to the characteristics of the ship design, a method for dividing the ship design process into three layers is pat forward, that is project layer, design task layer and design activity layer, then the formalized definitions of the ship design process model, the decomposing principles of the ship design process and the architecture of the ship collaborative design (SDPM) system are presented. This method simplifies the activity network, makes the optimization and adjustment of the design plan convenient and also makes the design process easier to control and change, at last the architecture of the ship collaborative design system is discussed.

  20. The Liner Shipping Fleet Repositioning Problem with Cargo Flows

    DEFF Research Database (Denmark)

    Tierney, Kevin; Jensen, Rune Møller

    2012-01-01

    We solve an important problem for the liner shipping industry called the Liner Shipping Fleet Repositioning Problem (LSFRP). The LSFRP poses a large financial burden on liner shipping firms. During repositioning, vessels are moved between services in a liner shipping network. Shippers wish...... in the literature. We introduce a novel mathematical model of the LSFRP with cargo flows based on a carefully constructed graph and evaluate it on real world data from our industrial collaborator....

  1. Experimental framework for autonomous fast ships's control design

    OpenAIRE

    Recas Piorno, Joaquín; Esteban San Román, Segundo; Girón Sierra, José María; Cruz García, Jesús Manuel de la

    2005-01-01

    The research on seakeeping control of fast ships requires difficult experiments for modeling and control design. To alleviate the ship motion certain active appendages are added, such moving flaps, T-foil and fins. The motion of appendages must be optimized to counteract each encountered wave. During our first research steps, a scaled down ship, with scaled appendages, has been used in a towing tank facility. The scaled ship is towed at fixed speeds of experimental interest, for instance at t...

  2. Fuzzy Technique Tracking Control for Multiple Unmanned Ships

    OpenAIRE

    Ramzi Fraga; Liu Sheng

    2013-01-01

    A Fuzzy logic control law is presented and implemented for trajectory tracking of multiple under actuated autonomous surface vessels. In this study, an individual unmanned ship is used to be the leader that tracks the desired path; other unmanned ships are used to be the followers which track the leader only by using its position. A fuzzy controller was implemented for the ship leader position with a constant velocity; however, the ship follower needed a fuzzy controller for the position and ...

  3. A Geographic Optimization Approach to Coast Guard Ship Basing

    Science.gov (United States)

    2015-06-01

    transferring the goods to warehouse and from warehouse to the customers. PLANWAR gives the optimum location of the warehouses and storage of goods in these...Then, we relaxed the assumption that the ships were preassigned and used a greedy algo- rithm to find an efficient ship allocation . While we did not...maximum 200 words) This thesis studies the problem of finding efficient ship base locations, area of operations (AO) among bases, and ship assignments

  4. Ship export increased by 70% in first half of year

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ According to custom house statistics, China kept its momentum in ship export in the first half of the year, which totaled 357964 ships or a value of 3.4 billion US dollars, averaging 500 million dollars per month, up 66.8% from the same period of previous year. But ship import also increased significantly in the first half of the year, totaling 2393 ships or a value of 246 million US dollars, up 36% from the same period of last year.

  5. STUDY OF HYDRODYNAMIC FORCES OF SHIPS IN NARROW WATERWAY

    Institute of Scientific and Technical Information of China (English)

    Zhang Xie-dong; Wu Xiu-heng

    2003-01-01

    The collision of ships in narrow waterway may occur for a variety of reasons. The hydrodynamic forces between two ships change the maneuvering characteristics of ships greatly. So based on the boundary element method, this paper proposes a calculation method for hydrodynamic interaction forces between ships under meeting and passing conditions in narrow waterway. The results from this method are compared with the existing results obtained from other theoretical approaches, and they are in good agreement.

  6. 76 FR 82027 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2011-12-29

    ... bodies; --Status of Conventions; --Harmful anti-fouling systems for ships; --Promotion of implementation... Organization's Sub-Committee on Ship Design and Equipment (DE 56) to be held at the International Maritime... recovery systems for all types of ships; --Development of amendments to SOLAS regulation...

  7. 78 FR 14400 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2013-03-05

    ... facilities; --Reports of sub-committees; --Work of other bodies; --Harmful anti-fouling systems for ships... the following: --Harmful aquatic organisms in ballast water; --Recycling of ships; --Air pollution and energy efficiency; --Reduction of GHG emissions from ships; --Consideration and adoption of amendments...

  8. 77 FR 54648 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2012-09-05

    ...-committees; --Work of other bodies; --Status of conventions; --Harmful anti-fouling systems for ships... organisms in ballast water; --Recycling of ships; --Air pollution and energy efficiency; --Reduction of GHG emissions from ships; --Consideration and adoption of amendments to mandatory instruments;...

  9. 75 FR 8176 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2010-02-23

    ... facilities --Reports of sub-committees --Work of other bodies --Status of conventions --Harmful anti-fouling systems for ships --Promotion of implementation and enforcement of MARPOL and related instruments... ballast water --Recycling of ships --Prevention of air pollution from ships --Consideration and...

  10. A cellular automaton model for ship traffic flow in waterways

    Science.gov (United States)

    Qi, Le; Zheng, Zhongyi; Gang, Longhui

    2017-04-01

    With the development of marine traffic, waterways become congested and more complicated traffic phenomena in ship traffic flow are observed. It is important and necessary to build a ship traffic flow model based on cellular automata (CAs) to study the phenomena and improve marine transportation efficiency and safety. Spatial discretization rules for waterways and update rules for ship movement are two important issues that are very different from vehicle traffic. To solve these issues, a CA model for ship traffic flow, called a spatial-logical mapping (SLM) model, is presented. In this model, the spatial discretization rules are improved by adding a mapping rule. And the dynamic ship domain model is considered in the update rules to describe ships' interaction more exactly. Take the ship traffic flow in the Singapore Strait for example, some simulations were carried out and compared. The simulations show that the SLM model could avoid ship pseudo lane-change efficiently, which is caused by traditional spatial discretization rules. The ship velocity change in the SLM model is consistent with the measured data. At finally, from the fundamental diagram, the relationship between traffic ability and the lengths of ships is explored. The number of ships in the waterway declines when the proportion of large ships increases.

  11. 46 CFR 128.410 - Ship's service refrigeration systems.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Ship's service refrigeration systems. 128.410 Section 128.410 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS... service refrigeration systems. No self-contained unit either for air-conditioning or for...

  12. 48 CFR 47.305-16 - Shipping characteristics.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Shipping characteristics... CONTRACT MANAGEMENT TRANSPORTATION Transportation in Supply Contracts 47.305-16 Shipping characteristics... shipments of agreed size. (b) Guaranteed shipping characteristics. (1) The contracting officer shall...

  13. Research on Double Collision Avoidance Mechanism of Ships at Sea

    Directory of Open Access Journals (Sweden)

    XiuYing Bi

    2015-03-01

    Full Text Available When power driven vessels encounter at sea, they need to avoid collision. The definition of right vessel may mislead ships officers think his or her direct navigating has absolute power with this special ship. This paper will define DCPA symbols; give the cause and the method of double collision avoidance mechanism of ships at sea.

  14. 47 CFR 80.1099 - Ship sources of energy.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Ship sources of energy. 80.1099 Section 80.1099... Stations § 80.1099 Ship sources of energy. (a) There must be available at all times, while the ship is at sea, a supply of electrical energy sufficient to operate the radio installations and to charge...

  15. 48 CFR 1352.271-87 - Changes-ship repair.

    Science.gov (United States)

    2010-10-01

    ...—ship repair. As prescribed in 48 CFR 1371.118, insert the following clause: Changes—Ship Repair (APR... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Changes-ship repair. 1352.271-87 Section 1352.271-87 Federal Acquisition Regulations System DEPARTMENT OF COMMERCE CLAUSES...

  16. Effect of ship motion on spinal loading during manual lifting

    NARCIS (Netherlands)

    Faber, G.S.; Kingma, I.; Delleman, N.; Dieën, J. van

    2008-01-01

    This study investigated the effects of ship motion on peak spinal loading during lifting. All measurements were done on a ship at sea. In 1-min trials, which were repeated over a wide range of sailing conditions, subjects lifted an 18 kg box five times. Ship motion, whole body kinematics, ground rea

  17. Routing and scheduling and fleet management for liner shipping

    DEFF Research Database (Denmark)

    Kjeldsen, Karina Hjortshøj

    2009-01-01

    The problem of routing, scheduling and fleet management in global liner shipping is presented. The developed model incorporates the ships' speed as a decision variable. Furthermore, the model must be able to handle problems of the size and complexity experienced by the global liner shipping...

  18. 29 CFR 1915.163 - Ship's piping systems.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false Ship's piping systems. 1915.163 Section 1915.163 Labor... (CONTINUED) OCCUPATIONAL SAFETY AND HEALTH STANDARDS FOR SHIPYARD EMPLOYMENT Ship's Machinery and Piping Systems § 1915.163 Ship's piping systems. (a) Before work is performed on a valve, fitting, or section...

  19. High efficiency 200 TEU container ship developed by CSC

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ After three years operation, the large, energy-efficient, environment-friendly 200 TEU container ship Changjiang developed by China Changjiang National Shipping Group Corporation (CSC) has become an important force in the fleet of container ships in the upper reaches of the Yangtze River in China.

  20. Model for Environmental Assessment of Container Ship Transport

    DEFF Research Database (Denmark)

    Kristensen, Hans Otto Holmegaard

    2012-01-01

    A generic computer model for systematic investigations of container ship designs is described in this paper. The primary statistical data on container ships used for the model development are also presented. The model can be used to calculate exhaust gas emissions from container ships, including...

  1. 47 CFR 80.81 - Antenna requirements for ship stations.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Antenna requirements for ship stations. 80.81 Section 80.81 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO... Stations § 80.81 Antenna requirements for ship stations. All telephony emissions of a ship station or...

  2. 29 CFR 1915.165 - Ship's deck machinery.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false Ship's deck machinery. 1915.165 Section 1915.165 Labor... (CONTINUED) OCCUPATIONAL SAFETY AND HEALTH STANDARDS FOR SHIPYARD EMPLOYMENT Ship's Machinery and Piping Systems § 1915.165 Ship's deck machinery. (a) Before work is performed on the anchor windlass or any...

  3. Leadership Profiling of Ocean Going Ship Masters1

    Directory of Open Access Journals (Sweden)

    Ioannis Theotokas

    2014-12-01

    This paper focuses on the ocean going ship Masters and aims at identifying their leadership profiles and understanding their attitudes and reactions in given circumstances. It analyses and discusses the results of a field study of ship officers of different nationalities employed as Masters on board ships of a leading international maritime group. Results of the research reveal that the characteristics and the competencies of ship Masters as identified using the specially developed questionnaire, are compatible with those proposed by situational leadership theories. Ship Masters seem to give priority to the people on board and their needs and try to be supportive in their decisions.

  4. A Survey on the Ship Loading Problem

    DEFF Research Database (Denmark)

    Iris, Cagatay; Pacino, Dario

    2015-01-01

    Recent statistics show that large container terminals can process more than 30 million containers a year, and are constantly in search for the better ways to optimize processing time, deliver high quality and profitable services. Some of the terminal decisions are, however, dependent on externali......Recent statistics show that large container terminals can process more than 30 million containers a year, and are constantly in search for the better ways to optimize processing time, deliver high quality and profitable services. Some of the terminal decisions are, however, dependent...... on externalities. One of those is the ship loading process. Based on the stowage plan received by liner shippers, terminal operators plan the execution of load and discharge operations. In this paper we present a literature review for the Ship Loading Problem, where stowage and loading sequencing and scheduling...

  5. DEPLOYMENT OF THE BULK TRITIUM SHIPPING PACKAGE

    Energy Technology Data Exchange (ETDEWEB)

    Blanton, P.

    2013-10-10

    A new Bulk Tritium Shipping Package (BTSP) was designed by the Savannah River National Laboratory to be a replacement for a package that has been used to ship tritium in a variety of content configurations and forms since the early 1970s. The BTSP was certified by the National Nuclear Safety Administration in 2011 for shipments of up to 150 grams of Tritium. Thirty packages were procured and are being delivered to various DOE sites for operational use. This paper summarizes the design features of the BTSP, as well as associated engineered material improvements. Fabrication challenges encountered during production are discussed as well as fielding requirements. Current approved tritium content forms (gas and tritium hydrides), are reviewed, as well as, a new content, tritium contaminated water on molecular sieves. Issues associated with gas generation will also be discussed.

  6. Numerical Simulation on Ship Bubbly Wake

    Institute of Scientific and Technical Information of China (English)

    Huiping Fu; Pengcheng Wan

    2011-01-01

    Based on a volume of fluid two-phase model imbedded in the general computational fluid dynamics code FLUENT6.3.26,the viscous flow with free surface around a model-scaled KRISO container ship(KCS)was first numerically simulated.Then with a rigid-lid-free-surface method,the underwater flow field was computed based on the mixture multiphase model to simulate the bubbly wake around the KCS hull.The realizable k-ε two-equation turbulence model and Reynolds stress model were used to analyze the effects of turbulence model on the ship bubbly wake.The air entrainment model,which is relative to the normal velocity gradient of the free surface,and the solving method were verified by the qualitatively reasonable computed results.

  7. Underwater Explosion Damage of Ship Hull Panels

    Directory of Open Access Journals (Sweden)

    K. Rarnajeyathilagam

    2003-10-01

    Full Text Available Underwater explosion is a major threat to ships and submarines in a war environment. The prediction of the mode and the extent of the failure is an essential step in designing for shock loading. The localised failure in a hull panel is severe compared to the global response of the ship. In this study, an attempt has been made to predict the response and failure modes of three types of hull panels (flat, concave, and convex. The shock loading on the hull panel has been estimated based on the Taylor's plate theory. The numerical analysis has been carried out using the CSAIGENSA (DYNA3D code that employs nonlinear finite element model.

  8. Speed Optimization in Liner Shipping Network Design

    DEFF Research Database (Denmark)

    Brouer, Berit Dangaard; Karsten, Christian Vad; Pisinger, David

    In the Liner Shipping Network Design Problem (LSNDP) services sail at a given speed throughout a round trip. In reality most services operate with a speed differentiated head- and back-haul, or even individual speeds on every sailing between two ports. The speed of a service is decisive...... for the bunker consumption in the network as well as the transit time of cargo. Speed optimization has been considered for tramp shipping showing significant reductions in fuel consumption. However, variable speeds has not been considered for post optimization of the LSNDP, where speed optimization could result...... in changes to the cargo flow due to transit time restrictions as well as significant savings in fuel consumption and required vessel deployment due to a weekly frequency requirement. We present a heuristic method to calculate variable speed on a service and present computational results for improving...

  9. Worry and its correlates onboard cruise ships.

    Science.gov (United States)

    Wolff, Katharina; Larsen, Svein; Marnburg, Einar; Øgaard, Torvald

    2013-01-01

    The present study examined job-specific worry, as well as possible predictors of such worry, namely job-specific self-efficacy and supervisor dispositionism. 133 non-supervising crew members at different departments onboard upmarket cruise ships filled in a questionnaire during one of their journeys. Findings show that employees report moderate amounts of job-specific worry and the galley crew reports significantly greater amounts of worry than the other departments. Results also indicate that cruise ship crews worry somewhat more than workers in the land based service sector. Furthermore it was found that supervisor dispositionism, i.e. supervisors with fixed mindsets, was related to greater amounts of worry among the crew. Surprisingly, job-specific self-efficacy was unrelated to job-specific worry.

  10. The Shipping Industry Perspective: Implementing the Strategy

    Science.gov (United States)

    2008-10-29

    orative software to fully capture industry perspectives and promote in-depth exploration. Representatives included fi rms involved in shipping, port...participants used a collaborative software tool called WebIQ© to enter ideas, comment on one another’s entries, and prioritize among alternatives...labor, and public disagreement over waterfront land use, such as the preference for residential condominiums over indus- trial facilities. One measure

  11. Trends in Integrated Ship Control Networking

    DEFF Research Database (Denmark)

    Jørgensen, N.; Nielsen, Jens Frederik Dalsgaard

    1997-01-01

    Integrated Ship Control systems can be designed as robust, distributed, autonomous control systems. The EU funded ATOMOS and ATOMOS II projects involves both technical and non technical aspects of this process. A reference modelling concept giving an outline of a generic ISC system covering...... the network and the equipment connected to it, a framework for verification of network functionality and performance by simulation and a general distribution platform for ISC systems, The ATOMOS Network, are results of this work....

  12. Load and Global Response of Ships

    DEFF Research Database (Denmark)

    Jensen, Jørgen Juncher

    The present monograph covers wave load and global structural response for ships. It is primary written as a textbook for students with an introductionary background in naval architecture and a basic knowledge of statistics and strength of materials. The subjects are treated in details starting from...... treatment has to be supplemented with methods for detailed stress evaluation and for structural strength assessment before a complete structural reliability analysis can be carried out....

  13. Trends in Integrated Ship Control Networking

    OpenAIRE

    Jørgensen, N.; Nielsen, Jens Frederik Dalsgaard

    1997-01-01

    Integrated Ship Control systems can be designed as robust, distributed, autonomous control systems. The EU funded ATOMOS and ATOMOS II projects involves both technical and non technical aspects of this process. A reference modelling concept giving an outline of a generic ISC system covering the network and the equipment connected to it, a framework for verification of network functionality and performance by simulation and a general distribution platform for ISC systems, The ATOMOS Network, a...

  14. Ship Structure Committee Publications. A Special Bibliography.

    Science.gov (United States)

    1992-01-01

    SIZE EFFECT Illinois University, Urbana ................................................... 2 SSC-4 DIRECT EXPLOSION TEST FOR WELDED ARMOR AND SHIP...1978, 96p Illinois University, Urbana (SR-93) , Aug. 1946, 143p N00024-74-C-5451 NOBS-31224 ORDER FROM: NTIS AD-A057004/4ST ORDER FROM: NTIS AD-646363 SSC...concluded that plating uinfairness per at has no significant V- noch and keyhole-notch trnsition temperatures. This progres report pre- bearing on the

  15. Virtual Ships: NATO Standards Development and Implementation

    Science.gov (United States)

    2009-10-01

    than runtime performance. The STANAG provides specific Federation Object Model (FOM) extensions to the standard Real-time Platform Reference FOM ( RPR ...Reference FOM. It is envisaged that the Virtual Ship Reference FOM will ultimately be used to improve the next generation RPR FOM open international...STANAG provides specific Federation Object Model (FOM) extensions to the standard Real-time Platform Reference FOM ( RPR FOM). They include constructs for

  16. Marine bioinvasion: Concern for ecology and shipping

    Digital Repository Service at National Institute of Oceanography (India)

    Anil, A.C.; Venkat, K.; Sawant, S.S.; DileepKumar, M.; Dhargalkar, V.K.; Ramaiah, N.; Harkantra, S.N.; Ansari, Z.A.

    of the problems currently faced by the global R&D and shipping communities is that there are currently no internationally agreed and approved standards and in particular, effectiveness standards for the evaluation and approval of new ballast water - treatment... - treatment methods are soon developed. 1. Ballast Water News , GloBallast, IMO, GEF, UNDP, 2000, 1. 2. Stopping the Ballast Water Stowaways , Global Ballast Water Management Programme, IMO, March 2001. Table 2. Technological options under...

  17. Ship Structure Committee Publications: A Special Bibliography.

    Science.gov (United States)

    1983-01-01

    NTIS material which prevented plastic flow of the plate before failure of the welded AD-635797 ioints. (Author) 327710 DeGarmo, EP Meriam , JL AN...V. I.- . . ... . ... . . . ... W% - 7 ORDER FROM: NTIS Lyman , PT Meriam . JL AD-636749 California University, Berkeley, (SR161) Final Rpt. SSC-152...models to determine which type of specimen would best duplicate the stress condition existing in actual ships. R H I AT3G72H DeGarmo, EP Meriam , JL

  18. Historic survey on nuclear merchant ships

    Energy Technology Data Exchange (ETDEWEB)

    Freire, Luciano Ondir, E-mail: luciano.ondir@gmail.com; Andrade, Delvonei Alves de, E-mail: delvonei@ipen.br

    2015-11-15

    Highlights: • The nuclear merchants ships already built are described and studied. • Their history and main architectural choices are presented, focusing nuclear domain. • The typical problems in those projects are discussed. • Some key factors for developing successful nuclear merchant ships are identified. - Abstract: This work provides a survey on past nuclear merchant ships experience. On light of new regulations on CO{sub 2}, SO{sub x} and NO{sub x}, the options for clean naval propulsion need to be studied. Despite many efforts, the only already sea proven emissions-free energy is nuclear power of pressurized water reactor type. Given the past experience on the field, this work provides some information on history, architectures and hints of reasons for the success or failures of each project. It is found that adequate requirements identification must be done keeping economics always in the center of design. Experience shows, except after major catastrophic accidents, public trust may be earned by open dialog and sound engineering practices.

  19. Light absorbing carbon emissions from commercial shipping

    Science.gov (United States)

    Lack, Daniel; Lerner, Brian; Granier, Claire; Baynard, Tahllee; Lovejoy, Edward; Massoli, Paola; Ravishankara, A. R.; Williams, Eric

    2008-07-01

    Extensive measurements of the emission of light absorbing carbon aerosol (LAC) from commercial shipping are presented. Vessel emissions were sampled using a photoacoustic spectrometer in the Gulf of Mexico region. The highest emitters (per unit fuel burnt) are tug boats, thus making significant contributions to local air quality in ports. Emission of LAC from cargo and non cargo vessels in this study appears to be independent of engine load. Shipping fuel consumption data (2001) was used to calculate a global LAC contribution of 133(+/-27) Ggyr-1, or ~1.7% of global LAC. This small fraction could have disproportionate effects on both air quality near port areas and climate in the Arctic if direct emissions of LAC occur in that region due to opening Arctic sea routes. The global contribution of this LAC burden was investigated using the MOZART model. Increases of 20-50 ng m-3 LAC (relative increases up to 40%) due to shipping occur in the tropical Atlantic, Indonesia, central America and the southern regions of South America and Africa.

  20. Cardiovascular emergencies in cruise ship passengers.

    Science.gov (United States)

    Novaro, Gian M; Bush, Howard S; Fromkin, Kenneth R; Shen, Michael Y; Helguera, Marcelo; Pinski, Sergio L; Asher, Craig R

    2010-01-15

    More than 10 million people, many elderly and likely to harbor cardiovascular (CV) disease, embark on cruise ship travel worldwide every year. The clinical presentation and outcome of CV emergencies presenting during cruise ship travel remain largely unknown. Our department provides contracted cardiology consultations to several large cruise lines. We prospectively maintained a registry of all such consultations during a 2-year period. One hundred consecutive patients were identified (age 66 +/- 14 years, range 18 to 90, 76% men). The most common symptom was chest pain (50%). The most common diagnosis was acute coronary syndrome (58%; ST elevation in 21% and non-ST elevation in 37%). On-board mortality was 3%. Overall, 73% of patients required hospital triage. Of the 25 patients triaged to our institution, 17 underwent a revascularization procedure. One patient died. Ten percent of patients had cardiac symptoms in the days or weeks before boarding; all required hospital triage. Access to a baseline electrocardiogram would have been clinically useful in 23% of cases. In conclusion, CV emergencies, such as acute coronary syndrome and heart failure, are not uncommon on cruise ships. They are often serious, requiring hospital triage and coronary revascularization. A pretravel medical evaluation is recommended for passengers with a cardiac history or a high-risk profile. Passengers should be encouraged to bring a copy of their electrocardiogram on board if abnormal. Cruise lines should establish mechanisms for prompt consultation and triage.

  1. Cluster Analysis and Fuzzy Query in Ship Maintenance and Design

    Science.gov (United States)

    Che, Jianhua; He, Qinming; Zhao, Yinggang; Qian, Feng; Chen, Qi

    Cluster analysis and fuzzy query win wide-spread applications in modern intelligent information processing. In allusion to the features of ship maintenance data, a variant of hypergraph-based clustering algorithm, i.e., Correlation Coefficient-based Minimal Spanning Tree(CC-MST), is proposed to analyze the bulky data rooting in ship maintenance process, discovery the unknown rules and help ship maintainers make a decision on various device fault causes. At the same time, revising or renewing an existed design of ship or device maybe necessary to eliminate those device faults. For the sake of offering ship designers some valuable hints, a fuzzy query mechanism is designed to retrieve the useful information from large-scale complicated and reluctant ship technical and testing data. Finally, two experiments based on a real ship device fault statistical dataset validate the flexibility and efficiency of the CC-MST algorithm. A fuzzy query prototype demonstrates the usability of our fuzzy query mechanism.

  2. Statistical Analysis of Ship Collisions with Bridges in China Waterway

    Institute of Scientific and Technical Information of China (English)

    DAI Tong-yu; NIE Wu; LIU Ying-jie; WANG Li-ping

    2002-01-01

    Having carried out investigations on ship collision accidents with bridges in waterway in China, a database of ship collision with bridge (SCB) is developed in this paper. It includes detailed information about more than 200 accidents near ship's waterways in the last four decades, in which ships collided with the bridges. Based on the information a statistical analysis is presented tentatively. The increase in frequency of ship collision with bridges appears, and the accident quantity of the barge system is more than that of single ship. The main reason of all the factors for ship collision with bridge is the human errors, which takes up 70%. The quantity of the accidents happened during flooding period shows over 3~6 times compared with the period from March to June in a year. The probability follows the normal distribution according to statistical analysis. Visibility, span between piers also have an effect on the frequency of the accidents.

  3. Modeling pedestrian evacuation movement in a swaying ship

    CERN Document Server

    Chen, Juan; Lo, SM

    2015-01-01

    With the advance in living standard, cruise travel has been rapidly expanding around the world in recent years. The transportation of passengers in water has also made a rapid development. It is expected that ships will be more and more widely used. Unfortunately, ship disasters occurred in these years caused serious losses. It raised the concern on effectiveness of passenger evacuation on ships. The present study thus focuses on pedestrian evacuation features on ships. On ships, passenger movements are affected by the periodical water motion and thus are quite different from the characteristic when walking on static horizontal floor. Taking into consideration of this special feature, an agent-based pedestrian model is formulized and the effect of ship swaying on pedestrian evacuation efficiency is investigated. Results indicated that the proposed model can be used to quantify the special evacuation process on ships.

  4. The influence of ship's stability on safety of navigation

    Science.gov (United States)

    Hanzu-Pazara, R.; Duse; Varsami, C.; Andrei, C.; Dumitrache, R.

    2016-08-01

    Ship's stability is one of the most important and complex concept about safety of ship and safety of navigation and it is governed by maritime law as well as maritime codes. The paper presents the importance of ship's intact stability as part of the general concept of ship's seaworthiness. There is always a correlation between ship’ stability and safety of ship and safety of navigation. Loss of ship's stability is presented as a threat to safety of navigation. We are going to present the causes that lead to ship stability failure and their impact on safety of navigation. A study of various ship stability casualties in heavy weather conditions are going to be presented, the causes are going to be analyzed and the possible ways of stability failures are assessed. Vessel's intact stability is a fundamental component of seaworthiness so it is in the interest of all owners/operators to learn about this topic and ensure that their vessel possesses a satisfactory level of stability in order to ensure its safety as well as that of the people on board the ship. Understanding ship's stability, trim, stress, and the basics of ship's construction is a key to keeping a ship seaworthy. The findings of this study can be beneficial to the maritime safety administrations to adopt decision-making on maritime safety management, but it is also important to carry out statistics and analysis of marine casualties to help to adopt proper safety management measures. Moreover, the study can be a useful guidance for masters and officers on board vessel in order to understand the factors that contribute to ship stability failure during the voyage not only in port during loading operations and to take preventive measures to avoid to put the ship in such a dangerous situations.

  5. SYNCHRONIZATION OF NATIONAL GRID NETWORK WITH THE ELECTRICITY SHIPS NETWORK IN THE "SHORE TO SHIP" SYSTEM

    Directory of Open Access Journals (Sweden)

    Dariusz TARNAPOWICZ

    2013-07-01

    Full Text Available ‘Shore to ship’ system – ships’ power supply from the local electrical substations – is one of the effective ways to limit the negative impact of the ships lying in ports on the environment. Energy infrastructure of the port installation necessary to provide ships with power supply has to be designed so that different types of ships can use it. The important issue concerning ‘shore to ship’ system is the quality of power supply. This can be achieved via sustaining continuity of power supply while switching from the ships’ electrical network over to the national grid. In this article the author presents the way of synchronizing the national grid with the ships’ electrical network during ship’s lying in port. Such synchronization would allow for uninterruptible work of the ship’s electrical devices.

  6. Twin shuttle boom type ship loader; Twin shattle bumushiki ship roda

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-04-20

    This ship loader was delivered to Housing Supply Corp. of Yamaguchi prefecture for loading 2,000m{sup 3} class barges with soil (less than 300mm in grain size) generated in Atagoyama regional development project to supply such soil to the off- shore transfer project of Iwakuni military base. Main specifications: (1) Conveyance capacity: 3,650t/h maximum, (2) Shuttle conveyer belt width: 1,600mm, (3) Belt speed: 160m/min, (4) Horizontal shuttle conveyer unit length: 25.5m, (5) Belt conveyer unit: 2 units, (6) Traveling distance: 50m. Features: (1) High shipment efficiency through continuous shipment of conveyed soil to right and left barges by 2 shuttle conveyer units, (2) Efficient labor-saving management work through the accumulation and tabulation of shipped soil based on automatic measurement of shipped soil with an electro-optical soil inspection system. (translated by NEDO)

  7. Evidence for ship noise impacts on humpback whale foraging behaviour.

    Science.gov (United States)

    Blair, Hannah B; Merchant, Nathan D; Friedlaender, Ari S; Wiley, David N; Parks, Susan E

    2016-08-01

    Noise from shipping activity in North Atlantic coastal waters has been steadily increasing and is an area of growing conservation concern, as it has the potential to disrupt the behaviour of marine organisms. This study examines the impacts of ship noise on bottom foraging humpback whales (Megaptera novaeangliae) in the western North Atlantic. Data were collected from 10 foraging whales using non-invasive archival tags that simultaneously recorded underwater movements and the acoustic environment at the whale. Using mixed models, we assess the effects of ship noise on seven parameters of their feeding behaviours. Independent variables included the presence or absence of ship noise and the received level of ship noise at the whale. We found significant effects on foraging, including slower descent rates and fewer side-roll feeding events per dive with increasing ship noise. During 5 of 18 ship passages, dives without side-rolls were observed. These findings indicate that humpback whales on Stellwagen Bank, an area with chronically elevated levels of shipping traffic, significantly change foraging activity when exposed to high levels of ship noise. This measureable reduction in within-dive foraging effort of individual whales could potentially lead to population-level impacts of shipping noise on baleen whale foraging success.

  8. Behavioral and Physiological Response of Baleen Whales to Ships and Ship Noise

    Science.gov (United States)

    2015-09-30

    examine stress hormone levels in biopsy samples from blue whales feeding in areas of high ship traffic such as off LA/Long Beach Harbor, especially...provided data useful to the objectives of this study. Species Tag type n Minke Blue Fin Humpb. Total h n 19 1 7 1 10 Dtag3 3 0.5 5.8 6.2... biopsy collections of blue whales using waters in and around the shipping lanes. Figure 5. Dive and uncorrected track of Dtag3 deployment on

  9. Emissions from Ships with respect to Their Effects on Clouds.

    Science.gov (United States)

    Hobbs, Peter V.; Garrett, Timothy J.; Ferek, Ronald J.; Strader, Scott R.; Hegg, Dean A.; Frick, Glendon M.; Hoppel, William A.; Gasparovic, Richard F.; Russell, Lynn M.; Johnson, Douglas W.; O'Dowd, Colin; Durkee, Philip A.; Nielsen, Kurt E.; Innis, George

    2000-08-01

    Emissions of particles, gases, heat, and water vapor from ships are discussed with respect to their potential for changing the microstructure of marine stratiform clouds and producing the phenomenon known as `ship tracks.' Airborne measurements are used to derive emission factors of SO2 and NO from diesel-powered and steam turbine-powered ships, burning low-grade marine fuel oil (MFO); they were 15-89 and 2-25 g kg1 of fuel burned, respectively. By contrast a steam turbine-powered ship burning high-grade navy distillate fuel had an SO2 emission factor of 6 g kg1.Various types of ships, burning both MFO and navy distillate fuel, emitted from 4 × 1015 to 2 × 1016 total particles per kilogram of fuel burned (4 × 1015-1.5 × 1016 particles per second). However, diesel-powered ships burning MFO emitted particles with a larger mode radius (0.03-0.05 m) and larger maximum sizes than those powered by steam turbines burning navy distillate fuel (mode radius 0.02 m). Consequently, if the particles have similar chemical compositions, those emitted by diesel ships burning MFO will serve as cloud condensation nuclei (CCN) at lower supersaturations (and will therefore be more likely to produce ship tracks) than the particles emitted by steam turbine ships burning distillate fuel. Since steam turbine-powered ships fueled by MFO emit particles with a mode radius similar to that of diesel-powered ships fueled by MFO, it appears that, for given ambient conditions, the type of fuel burned by a ship is more important than the type of ship engine in determining whether or not a ship will produce a ship track. However, more measurements are needed to test this hypothesis.The particles emitted from ships appear to be primarily organics, possibly combined with sulfuric acid produced by gas-to-particle conversion of SO2. Comparison of model results with measurements in ship tracks suggests that the particles from ships contain only about 10% water-soluble materials. Measurements of the

  10. The Retrograde of Shipping Containers from Afghanistan

    Science.gov (United States)

    2013-04-01

    War, (New York, New York: The Random House Publishing Group, 1993), Page 78. 2 MAJ Tony Velazquez , 1st TSC, SPO Mobility and Mark LaRue, Global...mail to author, March 23, 2013 25 Ibid. 26 Ibid. 27 MAJ Tony Velazquez , 1st TSC, SPO Mobility and Mark LaRue, Global Container Manager, Surface...Late Fees for Military Shipping Containers Soar”, USA Today, October 4, 2012 33 MAJ Tony Velazquez , 1st TSC, SPO Mobility and Mark LaRue, Global

  11. Reconfigurable Control of a Ship Propulsion Plant

    DEFF Research Database (Denmark)

    Blanke, M.; Izadi-Zamanabadi, Roozbeh

    1998-01-01

    Fault-tolerant control combines fault detection and isolation techniques with supervisory control, to achieve the autonomous accommodation of faults before they develop into failures. While fault detection and isolation (FDI) methods have matured during the past decade, the extension to fault......-tolerant control is a fairly new area. Thise paper presents a ship propulsion system as a benchmark that should be useful as a platform for the development of new ideas and a comparison of methods. The benchmark has two main elements. One is the development of efficient FDI algorithms, and the other...... is the analysis and implementation of autonomous fault accommodation. A benchmark kit can be obtained from the authors....

  12. On the atmospheric internal ship waves

    Institute of Scientific and Technical Information of China (English)

    桑建国

    1997-01-01

    The analytical solutions of the atmospheric internal ship waves induced by three-dimensional terrain are obtained by solving the atmospheric wave equation. The solutions show that the waves consist of the untrapped and trapped parts. The patterns of the diverging wave and transverse wave in the untrapped parts are mainly determined by the shape and orientation of the terrain. This kind of wave may transport the wave energy to the upper atmosphere. The patterns of trapped lee waves are decided by the atmospheric conditions such as stratification, mean wind speeds and wind shear.

  13. Examination of SR101 shipping packages

    Energy Technology Data Exchange (ETDEWEB)

    Daugherty, W. L. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

    2015-03-01

    Four SR101 shipping packages were removed from service and provided for disassembly and examination of the internal fiberboard assemblies. These packages were 20 years old, and had experienced varying levels of degradation. Two of the packages were successfully disassembled and fiberboard samples were removed from these packages and tested. Mechanical and thermal property values are generally comparable to or higher than baseline values measured on fiberboard from 9975 packages, which differs primarily in the specified density range. While baseline data for the SR101 material is not available, this comparison with 9975 material suggests that the material properties of the SR101 fiberboard have not significantly degraded.

  14. Ship Grounding on Rock - I. Theory

    DEFF Research Database (Denmark)

    Simonsen, Bo Cerup

    1997-01-01

    This paper presents a set of analytical expressions which can be used to calculate the reaction force on a ship bottom deformed by a conical rock with a rounded tip. Closed form solutions are given for the resistance of inner and outer bottom plating, longitudinal stiffeners, girders and bulkheads...... by postulating a global mode of deformation for the structure around the rock with one free parameter, the plate split angle, related to the shape of thedeformation mode. It is assumed that intersections between structural components stay intact during the entire deformation process so the resistance...

  15. Shipping Firm to Offer Funeral Service

    Institute of Scientific and Technical Information of China (English)

    黄菊妹

    2001-01-01

    Japan’s largest shipping company, Nippon Yusen KK, plans to offer a new funeral ash-scattering service in a bid to (释义见19页文) capitalize on demand fuelled by the high ccst of cemeteries in Japan, a financial daily said Sunday. 日本最大的海运公司Nippon Yusen KK打算提供新的骨灰海葬服务,以求赢利。日本的公墓的价格居高不下,刺激了骨灰海葬的需求。一份金融日报星期日称。

  16. Absorbed Energy in Ship Collisions and Grounding

    DEFF Research Database (Denmark)

    Pedersen, Preben Terndrup; Zhang, Shengming

    1998-01-01

    is that the absorbed energy does not depend on the arrangement of the structure, the material properties, and the damage mode.The purpose of the present paper is to establish a new simple relation between the absorbed energy and the destroyed material volume, which can be used as a design tool for analysis of ship......Minorsky's well-known empirical formula, which relates the absorbed energy to the destroyed material volume, has been widely used in analyses of high energy collision and grounding accidents for nearly 40 years. The advantage of the method is its apparent simplcity. Obviously, its drawback...

  17. Containership Traffic Optimization on Feeder Shipping Line

    Directory of Open Access Journals (Sweden)

    Drozhzhyn Oleksii

    2016-12-01

    Full Text Available This article is devoted to feeder containership traffic optimization on the trunk and feeder shipping lines. The optimization is fulfilled in case of the necessity of laden containers delivery between fixed pairs of ports as well as in case of the requirement not to exceed the vessel's capacity, taking into account her residual value during transition between feeder port lines. The paper takes into account uneven distribution of empty container equipment in ports of line and the solution is suggested considering the estimation of the empty TEU’s number which is subject to reposition.

  18. Implementing Composite Superstructures in Large Passenger Ships

    DEFF Research Database (Denmark)

    Karatzas, Vasileios; Berggreen, Christian; Jensen, Jørgen Juncher;

    2015-01-01

    This study focuses on the structural response of the part of the superstructure of a RoPax ferry that has been redesigned using composite materials. The composite superstructure is presented and subsequently compared to the existing steel design considering different loading conditions by the use...... of FE modelling.Results indicate that it is not the structural response of the superstructure that inhibits the implementation of composites in the superstructures of large passenger ships but the complicated design procedure and the acceptance of such solutions by the regulatory bodies....

  19. Key technology of ship product data exchange based on STEP

    Science.gov (United States)

    Shi, Dong-Yan; Yang, Jing-Tong; Qiu, Chang-Hua; Xue, Kai

    2005-06-01

    In this paper, in order to implement the share and exchange of the ship product data, a new kind of global function model is established. By researching on the development and trend of the application of ship STEP (standard for the exchange of product model data) standards, the AIM (application interpreted model) of AP216 is developed and improved as an example, aiming at the characteristics and practical engineering of ship industry in our country. The data exchange interfaces are formed based on STEP in the CAD/CAM for the ship by all function modules and shared databases under the global function model. The share and exchange of all information and data are solved in the design, manufacture and all life-cycle of ship products among different computer application systems. The research work makes foundation for the ship industry informatization.

  20. Innovative Practice- Shipping Magnate CY Tung's Road to Success

    Institute of Scientific and Technical Information of China (English)

    殷炜键

    2012-01-01

      CY Tung was the pioneer of innovation and the practioner of innovative theories in modern shipping, regardless of his huge oil tanker building, container transport, institutional management or resource integration. Tung, the shipping industry have called the pioneer of innovation, Tung's road to success is a story and history of continuous innovation. In his shipping career, adhering to the innovative concept, multi-use new shipping technology, and management practice, Tung had built a team with the ability to innovate. Tung’s group, by integrating its human resources, contacts and production resources ultimately established himself in the highly competitive international shipping market and achieved his legendary of the world shipping tycoon.

  1. A quantitative assessment of Arctic shipping in 2010-2014.

    Science.gov (United States)

    Eguíluz, Victor M; Fernández-Gracia, Juan; Irigoien, Xabier; Duarte, Carlos M

    2016-08-01

    Rapid loss of sea ice is opening up the Arctic Ocean to shipping, a practice that is forecasted to increase rapidly by 2050 when many models predict that the Arctic Ocean will largely be free of ice toward the end of summer. These forecasts carry considerable uncertainty because Arctic shipping was previously considered too sparse to allow for adequate validation. Here, we provide quantitative evidence that the extent of Arctic shipping in the period 2011-2014 is already significant and that it is concentrated (i) in the Norwegian and Barents Seas, and (ii) predominantly accessed via the Northeast and Northwest Passages. Thick ice along the forecasted direct trans-Arctic route was still present in 2014, preventing transit. Although Arctic shipping remains constrained by the extent of ice coverage, during every September, this coverage is at a minimum, allowing the highest levels of shipping activity. Access to Arctic resources, particularly fisheries, is the most important driver of Arctic shipping thus far.

  2. A quantitative assessment of Arctic shipping in 2010–2014

    KAUST Repository

    Eguíluz, Victor M.

    2016-08-01

    Rapid loss of sea ice is opening up the Arctic Ocean to shipping, a practice that is forecasted to increase rapidly by 2050 when many models predict that the Arctic Ocean will largely be free of ice toward the end of summer. These forecasts carry considerable uncertainty because Arctic shipping was previously considered too sparse to allow for adequate validation. Here, we provide quantitative evidence that the extent of Arctic shipping in the period 2011–2014 is already significant and that it is concentrated (i) in the Norwegian and Barents Seas, and (ii) predominantly accessed via the Northeast and Northwest Passages. Thick ice along the forecasted direct trans-Arctic route was still present in 2014, preventing transit. Although Arctic shipping remains constrained by the extent of ice coverage, during every September, this coverage is at a minimum, allowing the highest levels of shipping activity. Access to Arctic resources, particularly fisheries, is the most important driver of Arctic shipping thus far.

  3. Key technology of ship product data exchange based on STEP

    Institute of Scientific and Technical Information of China (English)

    SHI Dong-yan; YANG Jing-tong; QIU Chang-hua; XUE Kai

    2005-01-01

    In this paper, in order to implement the share and exchange of the ship product data, a new kind of global function model is established. By researching on the development and trend of the application of ship STEP (standard for the exchange of product model data) standards, the AIM (application interpreted model) of AP216 is developed and improved as an example, aiming at the characteristics and practical engineering of ship industry in our country. The data exchange interfaces are formed based on STEP in the CAD/CAM for the ship by all function modules and shared databases under the global function model. The share and exchange of all information and data are solved in the design, manufacture and all life-cycle of ship products among different computer application systems. The research work makes foundation for the ship industry informatization.

  4. A PDDL Domain for the Liner Shipping Fleet Repositioning Problem

    DEFF Research Database (Denmark)

    Tierney, Kevin; Coles, Amanda; Coles, Andrew

    The Liner Shipping Fleet Repositioning Problem (LSFRP) poses a large financial burden on liner shipping firms. During repositioning, vessels are moved between services in a liner shipping network. The LSFRP is characterized by chains of interacting activities, many of which have costs that are a ......The Liner Shipping Fleet Repositioning Problem (LSFRP) poses a large financial burden on liner shipping firms. During repositioning, vessels are moved between services in a liner shipping network. The LSFRP is characterized by chains of interacting activities, many of which have costs...... that are a function of their duration; for example, sailing slowly between two ports is cheaper than sailing quickly. Despite its great industrial importance, the LSFRP has received little attention in the literature. We model the LSFRP using PDDL and solve it using the planner....

  5. A Way Forward for Ship Classification and Technical Services

    Directory of Open Access Journals (Sweden)

    Lam-Bee Goh

    2014-04-01

    Full Text Available Classification societies are one of key organizations that promote the highest standards in ship safety and quality shipping. The paper reviews the ship classification industry and identifies what the classification societies can do to add value to the maritime industry more effectively. To meet this objective, an analysis of the five competitive forces is carried out, together with an opinion survey performed on some of the leading shipping companies, to assess and to establish some of the key factors which should be considered when formulating an overall business strategy for the growth of the classification services business. The findings from the study are discussed with the strategic options and choices. A classification services industrial value chain analysis together with ship management and operation is undertaken to explore the opportunities for classification societies. These findings also provide guidance to policy-makers who design and seek to implement more effective international shipping policies.

  6. Mobile radio channels

    CERN Document Server

    Pätzold, Matthias

    2011-01-01

    Providing a comprehensive overview of the modelling, analysis and simulation of mobile radio channels, this book gives a detailed understanding of fundamental issues and examines state-of-the-art techniques in mobile radio channel modelling. It analyses several mobile fading channels, including terrestrial and satellite flat-fading channels, various types of wideband channels and advanced MIMO channels, providing a fundamental understanding of the issues currently being investigated in the field. Important classes of narrowband, wideband, and space-time wireless channels are explored in deta

  7. Update on emissions and environmental impacts from the international fleet of ships. The contribution from major ship types and ports

    Science.gov (United States)

    Dalsøren, S. B.; Eide, M. S.; Endresen, Ø.; Mjelde, A.; Gravir, G.; Isaksen, I. S. A.

    2008-10-01

    A reliable and up-to-date ship emission inventory is essential for atmospheric scientists quantifying the impact of shipping and for policy makers implementing regulations and incentives for emission reduction. The emission modelling in this study takes into account ship type and size dependent input data for 15 ship types and 7 size categories. Global port arrival and departure data for more than 32 000 merchant ships are used to establish operational profiles for the ship segments. The modelled total fuel consumption amounts to 217 Mt in 2004 of which 11 Mt is consumed in in-port operations. This is in agreement with international sales statistics. The modelled fuel consumption is applied to develop global emission inventories for CO2, NO2, SO2, CO, CH4, VOC (Volatile Organic Compounds), N2O, BC (Black Carbon) and OC (Organic Carbon). The global emissions from ships at sea and in ports are distributed geographically, applying extended geographical data sets covering about 2 million global ship observations and global port data for 32 000 ships. In addition to inventories for the world fleet, inventories are produced separately for the three dominating ship types, using ship type specific emission modelling and traffic distributions. A global Chemical Transport Model (CTM) was used to calculate the environmental impacts of the emissions. We find that ship emissions is a dominant contributor over much of the world oceans to surface concentrations of NO2 and SO2. The contribution is also large over some coastal zones. For surface ozone the contribution is high over the oceans but clearly also of importance over western North America (contribution 15 25%) and western Europe (5 15%). The contribution to tropospheric column ozone is up to 5 6%. The overall impact of ship emissions on global methane lifetime is large due to the high NOx emissions. With regard to acidification we find that ships contribute 11% to nitrate wet deposition and 4.5% to sulphur wet deposition

  8. Update on emissions and environmental impacts from the international fleet of ships: the contribution from major ship types and ports

    Science.gov (United States)

    Dalsøren, S. B.; Eide, M. S.; Endresen, Ø.; Mjelde, A.; Gravir, G.; Isaksen, I. S. A.

    2009-03-01

    A reliable and up-to-date ship emission inventory is essential for atmospheric scientists quantifying the impact of shipping and for policy makers implementing regulations and incentives for emission reduction. The emission modelling in this study takes into account ship type and size dependent input data for 15 ship types and 7 size categories. Global port arrival and departure data for more than 32 000 merchant ships are used to establish operational profiles for the ship segments. The modelled total fuel consumption amounts to 217 Mt in 2004 of which 11 Mt is consumed in in-port operations. This is in agreement with international sales statistics. The modelled fuel consumption is applied to develop global emission inventories for CO2, NO2, SO2, CO, CH4, VOC (Volatile Organic Compounds), N2O, BC (Black Carbon) and OC (Organic Carbon). The global emissions from ships at sea and in ports are distributed geographically, applying extended geographical data sets covering about 2 million global ship observations and global port data for 32 000 ships. In addition to inventories for the world fleet, inventories are produced separately for the three dominating ship types, using ship type specific emission modelling and traffic distributions. A global Chemical Transport Model (CTM) was used to calculate the environmental impacts of the emissions. We find that ship emissions is a dominant contributor over much of the world oceans to surface concentrations of NO2 and SO2. The contribution is also large over some coastal zones. For surface ozone the contribution is high over the oceans but clearly also of importance over Western North America (contribution 15-25%) and Western Europe (5-15%). The contribution to tropospheric column ozone is up to 5-6%. The overall impact of ship emissions on global methane lifetime is large due to the high NOx emissions. With regard to acidification we find that ships contribute 11% to nitrate wet deposition and 4.5% to sulphur wet deposition

  9. Update on emissions and environmental impacts from the international fleet of ships: the contribution from major ship types and ports

    Directory of Open Access Journals (Sweden)

    S. B. Dalsøren

    2009-03-01

    Full Text Available A reliable and up-to-date ship emission inventory is essential for atmospheric scientists quantifying the impact of shipping and for policy makers implementing regulations and incentives for emission reduction. The emission modelling in this study takes into account ship type and size dependent input data for 15 ship types and 7 size categories. Global port arrival and departure data for more than 32 000 merchant ships are used to establish operational profiles for the ship segments. The modelled total fuel consumption amounts to 217 Mt in 2004 of which 11 Mt is consumed in in-port operations. This is in agreement with international sales statistics. The modelled fuel consumption is applied to develop global emission inventories for CO2, NO2, SO2, CO, CH4, VOC (Volatile Organic Compounds, N2O, BC (Black Carbon and OC (Organic Carbon. The global emissions from ships at sea and in ports are distributed geographically, applying extended geographical data sets covering about 2 million global ship observations and global port data for 32 000 ships. In addition to inventories for the world fleet, inventories are produced separately for the three dominating ship types, using ship type specific emission modelling and traffic distributions.

    A global Chemical Transport Model (CTM was used to calculate the environmental impacts of the emissions. We find that ship emissions is a dominant contributor over much of the world oceans to surface concentrations of NO2 and SO2. The contribution is also large over some coastal zones. For surface ozone the contribution is high over the oceans but clearly also of importance over Western North America (contribution 15–25% and Western Europe (5–15%. The contribution to tropospheric column ozone is up to 5–6%. The overall impact of ship emissions on global methane lifetime is large due to the high NOx emissions. With

  10. Update on emissions and environmental impacts from the international fleet of ships. The contribution from major ship types and ports

    Directory of Open Access Journals (Sweden)

    S. B. Dalsøren

    2008-10-01

    Full Text Available A reliable and up-to-date ship emission inventory is essential for atmospheric scientists quantifying the impact of shipping and for policy makers implementing regulations and incentives for emission reduction. The emission modelling in this study takes into account ship type and size dependent input data for 15 ship types and 7 size categories. Global port arrival and departure data for more than 32 000 merchant ships are used to establish operational profiles for the ship segments. The modelled total fuel consumption amounts to 217 Mt in 2004 of which 11 Mt is consumed in in-port operations. This is in agreement with international sales statistics. The modelled fuel consumption is applied to develop global emission inventories for CO2, NO2, SO2, CO, CH4, VOC (Volatile Organic Compounds, N2O, BC (Black Carbon and OC (Organic Carbon. The global emissions from ships at sea and in ports are distributed geographically, applying extended geographical data sets covering about 2 million global ship observations and global port data for 32 000 ships. In addition to inventories for the world fleet, inventories are produced separately for the three dominating ship types, using ship type specific emission modelling and traffic distributions.

    A global Chemical Transport Model (CTM was used to calculate the environmental impacts of the emissions. We find that ship emissions is a dominant contributor over much of the world oceans to surface concentrations of NO2 and SO2. The contribution is also large over some coastal zones. For surface ozone the contribution is high over the oceans but clearly also of importance over western North America (contribution 15–25% and western Europe (5–15%. The contribution to tropospheric column ozone is up to 5–6%. The overall impact of ship emissions on global methane lifetime is large due to the high NOx emissions. With

  11. EX1201: Ship Shakedown and Patch Tests on NOAA Ship Okeanos Explorer between 20100214 and 20120223

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — EX1201 is the 2012 shakedown mission of NOAA ship Okeanos Explorer (EX) and will perform system patch tests of the vessel’s Kongsberg EM302 multibeam sonar....

  12. Advanced Demonstration of Motion Correction for Ship-to-Ship Passive Inspections

    Energy Technology Data Exchange (ETDEWEB)

    Ziock, Klaus-Peter [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Boehnen, Chris Bensing [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Ernst, Joseph [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2013-09-30

    Passive radiation detection is a key tool for detecting illicit nuclear materials. In maritime applications it is most effective against small vessels where attenuation is of less concern. Passive imaging provides: discrimination between localized (threat) and distributed (non-threat) sources, removal of background fluctuations due to nearby shorelines and structures, source localization to an individual craft in crowded waters, and background subtracted spectra. Unfortunately, imaging methods cannot be easily applied in ship-to-ship inspections because relative motion of the vessels blurs the results over many pixels, significantly reducing sensitivity. This is particularly true for the smaller water craft where passive inspections are most valuable. In this project we performed tests and improved the performance of an instrument (developed earlier under, “Motion Correction for Ship-to-Ship Passive Inspections”) that uses automated tracking of a target vessel in visible-light images to generate a 3D radiation map of the target vessel from data obtained using a gamma-ray imager.

  13. Wave Height Distribution Observed by Ships in the North Atlantic

    DEFF Research Database (Denmark)

    Olsen, Anders Smærup; Schrøter, Carsten; Jensen, Jørgen Juncher

    2005-01-01

    The analysis of almost 25000 observation of the wave height from ships in the North Atlantic shows that the encountered wave height distribution is significantly lower than the distribution provided by the classification societies for structural assessment. The joint probability distribution for ...... that the ship will maintain the service speed even in relatively severe sea. The distribution derived could be used to incorporate the effect of weather routing in a long term analysis of the wave loads on a ship....

  14. The Shipping Register of Ukraine on the Danube River

    Directory of Open Access Journals (Sweden)

    Oleg Shevchuk

    2013-08-01

    Full Text Available The article deals with the prehistory, goals and activities of the Shipping Register of Ukraine on the Danube River. It illustrates the main functions, the rights and law support of the organization, which can ensure the safety of shipping. The Shipping Register of Ukraine always tends to a constant and greater customer satisfaction in its work and continual improvement of the effectiveness of its internal quality control system.

  15. Hydrodynamic Coefficients of Ships with Forward Speed in Shallow Waters

    Institute of Scientific and Technical Information of China (English)

    M.HASANADIL; DUANWen-yang; WANGYu

    2004-01-01

    Effects of depth and forward speed on hydrodynamic coefficients of ships are presented in this paper. A modified simple Green function technique was used to calculate 2D coefficients while strip theory was used to calculate 3D coefficients. Numerical results are provided for hydrodynamic coefficients of parabolic hull ship. It is found out that both depth and forward speed have considerable effects on hydrodynamic coefficients of ship.

  16. Effect of Fracture on Crushing of Ship Structures

    DEFF Research Database (Denmark)

    Simonsen, Bo Cerup; Abramowicz, W.

    2003-01-01

    This paper is concerned with loads and energy absorption during crushing of ship structures. Particular focus is on the effect of fracture of welds or parent material on the energy absorption of typical structural subassemblies of ships during deep collapse. The paper presents experiments...... absorption in axial crushing of typical ship structural components. This effect of fracture has been neglected in previously published studies of bow crushing mechanics....

  17. Economic Impact of Cruise Ship Passengers in Bar Harbor, Maine

    OpenAIRE

    Gabe, Todd; Lynch, Colleen; McConnon, James; Allen, Thomas

    2003-01-01

    This report examines the economic impact of cruise ship passengers in Bar Harbor, Maine. In 2002, 64 cruise ships docked in Bar Harbor carrying about 120,000 passengers and crewmembers. The analysis presented in the report is based on 1,080 passenger surveys conducted between August and October of 2002. Economic impact figures are based on a total of 97,190 passengers, which is the capacity of the 64 cruise ships that were scheduled to visit Bar Harbor in 2002.

  18. Channel nut tool

    Energy Technology Data Exchange (ETDEWEB)

    Olson, Marvin

    2016-01-12

    A method, system, and apparatus for installing channel nuts includes a shank, a handle formed on a first end of a shank, and an end piece with a threaded shaft configured to receive a channel nut formed on the second end of the shaft. The tool can be used to insert or remove a channel nut in a channel framing system and then removed from the channel nut.

  19. 75 FR 27856 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2010-05-18

    ... (BWM) Convention; -- Review of Guidelines for the inspection of anti-fouling systems on ships... compliance; --Mandatory reports under International Convention for the Prevention of Pollution from...

  20. CCIEE-SSI TO BUILDUP CHINA SHIPPING SOFT POWER

    Institute of Scientific and Technical Information of China (English)

    Guo Yan

    2010-01-01

    @@ International shipping commonly uses indices, such as the index from the Baltic Shipping Exchange Kelaikesong. Most of the world's leading shipping agencies issue a Freight Index, which is based on tariffs as a fo-cal point, merely using the freight index as a measure of the state of devel-opment entails certain shortcomings, especially regarding the Forward Freight Agreement (FFA) which allows the introduction of additional freight indices and could become an object of financial speculation, which could not response to the actual situation of the global shipping industry.

  1. Solving the Liner Shipping Fleet Repositioning Problem with Cargo Flows

    DEFF Research Database (Denmark)

    Tierney, Kevin; Askelsdottir, Björg; Jensen, Rune Møller

    2015-01-01

    We solve a central problem in the liner shipping industry called the liner shipping fleet repositioning problem (LSFRP). The LSFRP poses a large financial burden on liner shipping firms. During repositioning, vessels are moved between routes in a liner shipping network. Liner carriers wish...... introduce a novel mathematical model and a simulated annealing algorithm for the LSFRP with cargo flows that makes use of a carefully constructed graph; we evaluate these approaches using real-world data from our industrial collaborator. Additionally, we compare the performance of our approach against...

  2. Precise Positioning of Ships for Maritime Disasters Prevention Using GPS

    Science.gov (United States)

    Ha, J.; Heo, M.; Chun, S.; Park, S.; Cho, D.

    2010-12-01

    Most ships use the marine DGPS (Differential Global Positioning System) service to know position information in the sea. In Korea, the Ministry of Land Transport and Maritime Affairs (MLTM) provides the nationwide DGPS (NDGPS) service to users trying to secure the safety of traffic of ships. The precision of ship position information obtained by the MLTM NDGPS system is about 1-2m. When ships pass through courses under bridges, ship collisions can occur with the bridges because of the few meter-level precision of position information. In this study, as a feasibility test, we estimated positions of ships at sea to predict the collisions between ships and bridges using DGPS, carrier phase DGPS (CDGPS), and precise point positioning (PPP) techniques were used. We conducted ship borne GPS observations in the south sea of Korea. To process the GPS data, GIPSY-OASIS (GPS Inferred Positioning System-Orbit Analysis and Simulation Software) developed by the Jet Propulsion Laboratory and CDGPS MATLAB program developed by Korea Space Research Institute were used. Antenna phase center variations, ocean tidal loading displacements, and azimuthal gradients of the atmosphere were corrected or estimated as standard procedures of high-precision GIPSY-OASIS data processing. As a result, the position precision decreased to decimeter-level with increasing the quantity of motion such as velocity, pitch and roll of the ship and buoys.

  3. Fuzzy Technique Tracking Control for Multiple Unmanned Ships

    Directory of Open Access Journals (Sweden)

    Ramzi Fraga

    2013-01-01

    Full Text Available A Fuzzy logic control law is presented and implemented for trajectory tracking of multiple under actuated autonomous surface vessels. In this study, an individual unmanned ship is used to be the leader that tracks the desired path; other unmanned ships are used to be the followers which track the leader only by using its position. A fuzzy controller was implemented for the ship leader position with a constant velocity; however, the ship follower needed a fuzzy controller for the position and the forward velocity. Simulation results show that the fuzzy method presents an interesting robustness against the environmental disturbances and effective tracking results.

  4. Radar imagery from the 1994 Lock Linnhe ship wake experiment

    Energy Technology Data Exchange (ETDEWEB)

    Mullenhoff, C.J.; Lehman, S.K.; Jones, H. [Lawrence Livermore National Lab., CA (United States)] [and others

    1994-11-15

    The 1994 Loch Linnhe radar ocean imaging trials were held from September 4 through September 17. Two ships were used: the R.V. Colonel Templer, and the RMAS Collie. Thorn EMI, Inc., fielded a dual band, dual polarization radar on a hillside overlooking the loch. A primary purpose of the experiment was to obtain highly visible images of ship generated internal waves. Presented here is imagery for a few of the good ship runs, as well as a study of the environment of the visibility of ship generated internal waves.

  5. Standoff midwave infrared hyperspectral imaging of ship plumes

    Science.gov (United States)

    Gagnon, Marc-André; Gagnon, Jean-Philippe; Tremblay, Pierre; Savary, Simon; Farley, Vincent; Guyot, Éric; Lagueux, Philippe; Chamberland, Martin; Marcotte, Frédérick

    2016-05-01

    Characterization of ship plumes is very challenging due to the great variety of ships, fuel, and fuel grades, as well as the extent of a gas plume. In this work, imaging of ship plumes from an operating ferry boat was carried out using standoff midwave (3-5 μm) infrared hyperspectral imaging. Quantitative chemical imaging of combustion gases was achieved by fitting a radiative transfer model. Combustion efficiency maps and mass flow rates are presented for carbon monoxide (CO) and carbon dioxide (CO2). The results illustrate how valuable information about the combustion process of a ship engine can be successfully obtained using passive hyperspectral remote sensing imaging.

  6. Study of Residual Strength Index of Damaged Ship Hulls

    Institute of Scientific and Technical Information of China (English)

    QIEn-rong; CUIWei-cheng; WANZheng-quan; QIUQiang

    2004-01-01

    This paper studies the effect of non-symmetric flood and rigidity loss of damaged ship hulls to external loads. Based on the calculation method of ultimate strength of damaged ship hulls under non-symmetric bending, the effect of collision, grounding and explosion damage on the ultimate strength of ship hull is also analyzed. Then, residual strength index of damaged ship hulls is given based on extreme loads and ultimate strength calculations. The critical sea state of damaged shin hulls is also predicted.

  7. [Medicine aboard cruise ships--law insurance specifics].

    Science.gov (United States)

    Ottomann, C; Frenzel, R; Muehlberger, T

    2013-04-01

    The booming cruise industry, associated with ships with more passengers and crew on board, results in growing medical needs for the ship doctor. The ship's doctor insurance policy includes different jurisdictions, namely national law, international law, tort law, insurance law and labor law. In addition, international agreements must be taken into account, which complicates the design of an adequate insurance policy. Equally high are the costs and defense costs for the ship's doctor in case of liability. In order to limit the liability for all parties is to ask for appropriately qualified medical staff, hired on board.

  8. Cruise ship's doctors - company employees or independent contractors?

    Science.gov (United States)

    Dahl, Eilif

    2016-01-01

    Traditionally, cruise companies have stated that they are in the transport business but not in the business of providing medical services to passengers. They have claimed not to be able to supervise or control the ship's medical personnel and cruise ship's doctors have therefore mostly been signed on as independent contractors, not employees. A United States court decision from 1988, Barbetta versus S/S Bermuda Star, supported this view and ruled that a ship's owner cannot be held vicariously liable for the negligence of the ship's doctor directed at the ship's passengers. Some years ago a cruise passenger fell and hit his head while boarding a trolley ashore. Hours later he was seen aboard by the ship's doctor, who sent him to a local hospital. He died 1 week later, and his daughter filed a complaint alleging the cruise company was vicariously liable for the purported negligence of the ship's doctor and nurse, under actual or apparent agency theories. A United States district court initially dismissed the case, but in November 2014 the United States Court of Appeals for the Eleventh Circuit disagreed and reversed. From then on independently contracted ship's doctors may be considered de facto employees of the cruise line. The author discusses the employment status of physicians working on cruise ships and reviews arguments for and against the Appellate Court's decision.

  9. Crushing of ship bows in head-on collision

    DEFF Research Database (Denmark)

    Ocakli, H.; Zhang, S.; Pedersen, Preben Terndrup

    2004-01-01

    Semi-analytical methods for analysis of plate crushing and ship bow damage in head-on collisions are developed in this paper. Existing experimental and theoretical studies for crushing analysis of plated structures are summarized and compared. Simple formulae for determining the crushing force....... The approach developed can be used easily to determine the crushing resistance and damage extent of the ship bow when ship length and collision speed are known. The method can be used in probabilistic analysis of damage extents in ship collisions where a large number of calculations are generally required....

  10. D Recording of a 19-CENTURY OB River Ship

    Science.gov (United States)

    Pushkarev, A. A.; Zaytceva, O. V.; Vavulin, M. V.; Skorobogatova, A. Y.

    2016-06-01

    A 3D recording of a 19-century wooden ship discovered on the bank of the river Ob (Western Siberia) was performed in autumn 2015. The archaeologized ship was partly under water, partly lying ashore, buried under fluvial deposits. The 3D recording was performed in October, when the water level was at its lowest after clearing the area around the ship. A 3D recording at the place of discovery was required as part of the ship museumification and reconstruction project. The works performed were primarily aimed at preserving as much information about the object as possible. Given the location and peculiar features of the object, a combination of close-range photogrammetry and aerial photography was considered to be the best possible solution for creating a high-quality 3D model. The dismantled ship was delivered to Nizhnevartovsk Museum of Local History in October 2015. The ship is going to be reassembled using the created 3D model to be exhibited in the museum. The resulting models are also going to be used to make a virtual 3D reconstruction of the ship in the future. We shot a stereoscopic video for Nizhnevartovsk Museum of Local History to let visitors see the place of discovery and explore the ship in greater details. Besides, 3D printing allowed for creating a miniature of the ship, which is also going to be included in the exposition devoted to this unique discovery.

  11. 3D RECORDING OF A 19-CENTURY OB RIVER SHIP

    Directory of Open Access Journals (Sweden)

    A. A. Pushkarev

    2016-06-01

    Full Text Available A 3D recording of a 19-century wooden ship discovered on the bank of the river Ob (Western Siberia was performed in autumn 2015. The archaeologized ship was partly under water, partly lying ashore, buried under fluvial deposits. The 3D recording was performed in October, when the water level was at its lowest after clearing the area around the ship. A 3D recording at the place of discovery was required as part of the ship museumification and reconstruction project. The works performed were primarily aimed at preserving as much information about the object as possible. Given the location and peculiar features of the object, a combination of close-range photogrammetry and aerial photography was considered to be the best possible solution for creating a high-quality 3D model. The dismantled ship was delivered to Nizhnevartovsk Museum of Local History in October 2015. The ship is going to be reassembled using the created 3D model to be exhibited in the museum. The resulting models are also going to be used to make a virtual 3D reconstruction of the ship in the future. We shot a stereoscopic video for Nizhnevartovsk Museum of Local History to let visitors see the place of discovery and explore the ship in greater details. Besides, 3D printing allowed for creating a miniature of the ship, which is also going to be included in the exposition devoted to this unique discovery.

  12. The European Experience of Ensuring the Development of River Shipping Companies

    Directory of Open Access Journals (Sweden)

    Tymoshchuk Olena M.

    2015-11-01

    Full Text Available The aim of the article is to study the features of the inland waterway transport development in the European countries to define the main ways of development of the shipping European Union countries and the use of their experience for inland navigation in Ukraine. The paper analyzes the volume of cargo turn-over, length of inland waterways in the European countries, nomenclature of the main goods of this transportation means in Europe. There have been identified the main shipping corridors: Rhine – the main corridor linking the port cluster of Northern Europe with Hinterland; North – South, which consists of the channels in the Netherlands, Belgium and France; eastern corridor, which inland waterways cover the territory of Germany, Poland and the Czech Republic; south-eastern corridor, which includes the Danube, the Main and the channels Main – Danube, Danube – Black Sea. The main elements of the program for developing the inland waterway transport in Europe «NAIADES» – Navigation and Inland Waterway Action and Development in Europe – have been analyzed.

  13. Geoacoustic inversion with ships as sources.

    Science.gov (United States)

    Koch, Robert A; Knobles, David P

    2005-02-01

    Estimation of geoacoustic parameters using acoustic data from a surface ship was performed for a shallow water region in the Gulf of Mexico. The data were recorded from hydrophones in a bottom mounted, horizontal line array (HLA). The techniques developed to produce the geoacoustic inversion are described, and an efficient method for geoacoustic inversion with broadband beam cross-spectral data is demonstrated. The performance of cost functions that involve coherent or incoherent sums over frequency and one or multiple time segments is discussed. Successful inversions for the first sediment layer sound speed and thickness and some of the parameters for the deeper layers were obtained with the surface ship at nominal ranges of 20, 30, or 50 water depths. The data for these inversions were beam cross-spectra from four subapertures of the HLA spanning a little more than two water depths. The subaperture beams included ten frequencies equally spaced in the 120-200 Hz band. The values of the geoacoustic parameters from the inversions are validated by comparisons with geophysical observations and with the parameter values from previous inversions by other invesigators, and by comparing transmission loss (TL) measured in the experiment with modeled TL based on the inverted geoacoustic parameters.

  14. Adaptive ship autopilot with wave filter

    Directory of Open Access Journals (Sweden)

    Steinar Sælid

    1983-01-01

    Full Text Available This paper is concerned with analysis and design of an adaptive autopilot for ships. The design is based on a low and high frequency model of the vessel motion adequate to ship steering. The low frequency model describes the vessel response to rudder control and slowly varying environmental forces. The high frequency model represents the wave induced oscillatory part of the yaw motion. The models are used in a Kalman filter and the rudder control is computed from linear quadratic theory based on the low frequency part of the vector. This yields a very effective filtering of the wave component of the yaw motion. Proper operation of this filter/controller structure requires knowledge of the vessel model parameters and the dominating wave frequency. The vessel parameters are estimated on line by a recursive prediction error method. In order to reduce the computing requirements, the state estimator is operated using scheduled gains. This results in an easy and robust design. The convergence properties are investigated by using the method of Ljung. The performance is confirmed by simulation experiments.

  15. Analysis and Design of Ship Collision Barriers on a Submerged Floating Tunnel subjected to Large Ship Collisions

    OpenAIRE

    Århus, Gisle Hoel

    2016-01-01

    Reinertsen AS is developing a bridge crossing concept to cross the Sognefjord in Norway. The concept consists of floating bridge and submerged tunnel. The submerged tunnel is exposed to ship collisions from passing ship traffic. A protective ship collision barrier is used to protect the exposed part of the submerged tunnel. A design of the collision barrier is proposed. The barrier is made of Aluminium. There are some special considerations one must take into account when using aluminium...

  16. The right whale mandatory ship reporting system: a retrospective.

    Science.gov (United States)

    Silber, Gregory K; Adams, Jeffrey D; Asaro, Michael J; Cole, Timothy V N; Moore, Katie S; Ward-Geiger, Leslie I; Zoodsma, Barbara J

    2015-01-01

    In 1998, the United States sought and received International Maritime Organization-endorsement of two Mandatory Ship Reporting (MSR) systems designed to improve mariner awareness about averting ship collisions with the endangered North Atlantic right whale (Eubalaena glacialis). Vessel collisions are a serious threat to the right whale and the program was among the first formal attempts to reduce this threat. Under the provisions of the MSR, all ships >300 gross tons are required to report their location, speed, and destination to a shore-based station when entering two key right whale habitats: one in waters off New England and one off coastal Georgia and Florida. In return, reporting ships receive an automatically-generated message, delivered directly to the ship's bridge, that provides information about right whale vulnerability to vessel collisions and actions mariners can take to avoid collisions. The MSR has been in operation continuously from July 1999 to the present. Archived incoming reports provided a 15-plus year history of ship operations in these two locations. We analyzed a total of 26,772 incoming MSR messages logged between July 1999 and December 2013. Most ships that were required to report did so, and compliance rates were generally constant throughout the study period. Self-reported vessel speeds when entering the systems indicated that most ships travelled between 10 and 16 (range = 5-20 +) knots. Ship speeds generally decreased in 2009 to 2013 following implementation of vessel speed restrictions. The number of reports into the southern system remained relatively constant following a steady increase through 2007, but numbers in the northern system decreased annually beginning in 2008. If reporting is indicative of long-term patterns in shipping operations, it reflects noteworthy changes in marine transportation. Observed declines in ship traffic are likely attributable to the 2008-2009 economic recession, the containerized shipping industry

  17. Diatom community structure on in-service cruise ship hulls.

    Science.gov (United States)

    Hunsucker, Kelli Zargiel; Koka, Abhishek; Lund, Geir; Swain, Geoffrey

    2014-10-01

    Diatoms are an important component of marine biofilms found on ship hulls. However, there are only a few published studies that describe the presence and abundance of diatoms on ships, and none that relate to modern ship hull coatings. This study investigated the diatom community structure on two in-service cruise ships with the same cruise cycles, one coated with an antifouling (AF) system (copper self-polishing copolymer) and the other coated with a silicone fouling-release (FR) system. Biofilm samples were collected during dry docking from representative areas of the ship and these provided information on the horizontal and vertical zonation of the hull, and intact and damaged coating and niche areas. Diatoms from the genera Achnanthes, Amphora and Navicula were the most common, regardless of horizontal ship zonation and coating type. Other genera were abundant, but their presence was more dependent on the ship zonation and coating type. Samples collected from damaged areas of the hull coating had a similar community composition to undamaged areas, but with higher diatom abundance. Diatom fouling on the niche areas differed from that of the surrounding ship hull and paralleled previous studies that investigated differences in diatom community structure on static and dynamically exposed coatings; niche areas were similar to static immersion and the hull to dynamic immersion. Additionally, diatom richness was greater on the ship with the FR coating, including the identification of several new genera to the biofouling literature, viz. Lampriscus and Thalassiophysa. These results are the first to describe diatom community composition on in-service ship hulls coated with a FR system. This class of coatings appears to have a larger diatom community compared to copper-based AF systems, with new diatom genera that have the ability to stick to ship hulls and withstand hydrodynamic forces, thus creating the potential for new problematic species in the biofilm.

  18. A Study of Stranding of Juvenile Salmon by Ship Wakes Along the Lower Columbia River Using a Before-and-After Design: Before-Phase Results

    Energy Technology Data Exchange (ETDEWEB)

    Pearson, Walter H.; Skalski, J R.; Sobocinski, Kathryn L.; Miller, Martin C.; Johnson, Gary E.; Williams, Greg D.; Southard, John A.; Buchanan, Rebecca A.

    2006-02-01

    Ship wakes produced by deep-draft vessels transiting the lower Columbia River have been observed to cause stranding of juvenile salmon. Proposed deepening of the Columbia River navigation channel has raised concerns about the potential impact of the deepening project on juvenile salmon stranding. The Portland District of the U.S. Army Corps of Engineers requested that the Pacific Northwest National Laboratory design and conduct a study to assess stranding impacts that may be associated with channel deepening. The basic study design was a multivariate analysis of covariance of field observations and measurements under a statistical design for a before and after impact comparison. We have summarized field activities and statistical analyses for the ?before? component of the study here. Stranding occurred at all three sampling sites and during all three sampling seasons (Summer 2004, Winter 2005, and Spring 2005), for a total of 46 stranding events during 126 observed vessel passages. The highest occurrence of stranding occurred at Barlow Point, WA, where 53% of the observed events resulted in stranding. Other sites included Sauvie Island, OR (37%) and County Line Park, WA (15%). To develop an appropriate impact assessment model that accounted for relevant covariates, regression analyses were conducted to determine the relationships between stranding probability and other factors. Nineteen independent variables were considered as potential factors affecting the incidence of juvenile salmon stranding, including tidal stage, tidal height, river flow, current velocity, ship type, ship direction, ship condition (loaded/unloaded), ship speed, ship size, and a proxy variable for ship kinetic energy. In addition to the ambient and ship characteristics listed above, site, season, and fish density were also considered. Although no single factor appears as the primary factor for stranding, statistical analyses of the covariates resulted in the following equations: (1) Stranding

  19. Multi-Channel Retailing

    Directory of Open Access Journals (Sweden)

    Dirk Morschett, Dr.,

    2005-01-01

    Full Text Available Multi-channel retailing entails the parallel use by retailing enterprises of several sales channels. The results of an online buyer survey which has been conducted to investigate the impact of multi-channel retailing (i.e. the use of several retail channels by one retail company on consumer behaviour show that the frequently expressed concern that the application of multi-channel systems in retailing would be associated with cannibalization effects, has proven unfounded. Indeed, the appropriate degree of similarity, consistency, integration and agreement achieves the exact opposite. Different channels create different advantages for consumers. Therefore the total benefit an enterprise which has a multi-channel system can offer to its consumers is larger, the greater the number of available channels. The use of multi-channel systems is associated with additional purchases in the different channels. Such systems are thus superior to those offering only one sales channel to their customers. Furthermore, multi-channel systems with integrated channels are superior to those in which the channels are essentially autonomous and independent of one another. In integrated systems, consumers can achieve synergy effects in the use of sales-channel systems. Accordingly, when appropriately formulated, multi-channel systems in retailing impact positively on consumers. They use the channels more frequently, buy more from them and there is a positive customer-loyalty impact. Multi-channel systems are strategic options for achieving customer loyalty, exploiting customer potential and for winning new customers. They are thus well suited for approaching differing and varied target groups.

  20. Advanced Concepts for Underwater Acoustic Channel Modeling

    Science.gov (United States)

    Etter, P. C.; Haas, C. H.; Ramani, D. V.

    2014-12-01

    This paper examines nearshore underwater-acoustic channel modeling concepts and compares channel-state information requirements against existing modeling capabilities. This process defines a subset of candidate acoustic models suitable for simulating signal propagation in underwater communications. Underwater-acoustic communications find many practical applications in coastal oceanography, and networking is the enabling technology for these applications. Such networks can be formed by establishing two-way acoustic links between autonomous underwater vehicles and moored oceanographic sensors. These networks can be connected to a surface unit for further data transfer to ships, satellites, or shore stations via a radio-frequency link. This configuration establishes an interactive environment in which researchers can extract real-time data from multiple, but distant, underwater instruments. After evaluating the obtained data, control messages can be sent back to individual instruments to adapt the networks to changing situations. Underwater networks can also be used to increase the operating ranges of autonomous underwater vehicles by hopping the control and data messages through networks that cover large areas. A model of the ocean medium between acoustic sources and receivers is called a channel model. In an oceanic channel, characteristics of the acoustic signals change as they travel from transmitters to receivers. These characteristics depend upon the acoustic frequency, the distances between sources and receivers, the paths followed by the signals, and the prevailing ocean environment in the vicinity of the paths. Properties of the received signals can be derived from those of the transmitted signals using these channel models. This study concludes that ray-theory models are best suited to the simulation of acoustic signal propagation in oceanic channels and identifies 33 such models that are eligible candidates.

  1. 77 FR 52105 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2012-08-28

    ...; --Reports of sub-committees; --Work of other bodies; --Status of conventions; --Harmful anti-fouling systems... include: --Harmful aquatic organisms in ballast water; --Recycling of ships; --Air pollution and energy efficiency; --Reduction of GHG emissions from ships; --Consideration and adoption of amendments to...

  2. SALMON: an innovative concept of ship propulsion on rivers

    NARCIS (Netherlands)

    Wind, H.G.; Rotgers, A.

    2001-01-01

    In this paper a concept is studied, where the energy for the propulsion of a ship is extracted from the down flow of the river. In this concept three elements are important; a wire which is connected upstream, paddles on both sides of the ship and a drum which rotates due to the movement of the padd

  3. Thermoeconomic Diagnosis of an Energy System for Ship Propulsion

    DEFF Research Database (Denmark)

    Sigthorsson, Oskar; Elmegaard, Brian; Ommen, Torben Schmidt

    2013-01-01

    A thermoeconomic diagnosis of an energy system for ship propulsion is performed. We consider a Thermo Efficiency System (TES), for a Post-Panamax class ship where the waste heat from the main engine is utilised with a waste heat recovery system consisting of a power turbine expander and a single...

  4. An integrated risk estimation methodology: Ship specific incident type risk

    NARCIS (Netherlands)

    S. Knapp (Sabine)

    2013-01-01

    textabstractShipping activity has increased worldwide, including parts of Australia, and maritime administrations are trying to gain a better understanding of total risk exposure in order to mitigate risk. Total risk exposure integrates risk at the individual ship level, risk due to vessel traffic d

  5. 48 CFR 52.247-60 - Guaranteed Shipping Characteristics.

    Science.gov (United States)

    2010-10-01

    ... Characteristics. 52.247-60 Section 52.247-60 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION....247-60 Guaranteed Shipping Characteristics. As prescribed in 47.305-16(b)(1), insert the following clause: Guaranteed Shipping Characteristics (DEC 1989) (a) The offeror is requested to...

  6. A STUDY OF VELOCITY FIELD IN SHIP WAVES

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Searching ships on the ocean with the technique of the oceanic remote sensing, one must be requensted to know not only the amplitude of ship waves, but also horizontal velocities. In this article Lighthill’s two-stage scheme was employed to change the integral expressions into algebraic expressions for the velocity components, so the obtained results are very succinct.

  7. Characterization of ships as sources of underwater noise

    NARCIS (Netherlands)

    Jong, C.A.F.

    2009-01-01

    There is a growing interest in the possible impact of anthropogenic underwater noise on marine life [1]. One of the concerns is the increasing contribution of shipping noise, with the growing number and size of commercial ships. Traditionally, underwater radiated noise control was only of interest f

  8. Observations during the first K West fuel shipping campaign

    Energy Technology Data Exchange (ETDEWEB)

    Makenas, B.J.

    1995-11-01

    Three fuel elements were shipped to the 300 Area hotcells during the first characterization shipping campaign from K West Basin. This document summarizes observations made during this campaign including the gas, liquid, and sludge content of the observed canisters. Included in an appendix is a detailed evaluation of fuel element condition for each canister opened

  9. Methods of Calculating Ship Resistance on Limited Waterways

    Directory of Open Access Journals (Sweden)

    Skupień Emilia

    2015-01-01

    Full Text Available Nowadays predicting transportation costs is more and more important. Most significant part of inland navigation's costs are the costs of fuel. Fuel consumption is related to operating conditions of ship's propulsion system and its resistance. On inland waterways the ship resistance is strictly related to the depth of the waterway. There is a tendency to build a formula that allows its user to calculate the resistance of any inland waterway vessel, but researches claim that most of them are accurate only for particular types of ships and/or operating conditions. The paper presents selected methods of calculating ship resistance on inland waterways. These methods are examined for different types of ships and different conditions using results of model tests. The performed comparison enabled selecting the best option for pushboats and pushed barge trains, but also showed that any of the tested methods is good enough to be used for calculating the resistance of motor cargo vessels. For this reason, based on known equations and using the regression method, the authors have formulated a new method to calculate the resistance of motor cargo vessels on limited waterway. The method makes use of ship's geometry and depth of waterway in relation to ship's speed. Correlating the ship's speed with its resistance and going further with fuel consumption, enables to calculate the costs of voyage depending on the delivery time. The comparison of the methods shows that the new equation provides good accuracy in all examined speed ranges and all examined waterway depths.

  10. Estimation of waves and ship responses using onboard measurements

    DEFF Research Database (Denmark)

    Montazeri, Najmeh

    This thesis focuses on estimation of waves and ship responses using ship-board measurements. This is useful for development of operational safety and performance efficiency in connection with the broader concept of onboard decision support systems. Estimation of sea state is studied using a set...

  11. 33 CFR 117.1051 - Lake Washington Ship Canal.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Lake Washington Ship Canal. 117.1051 Section 117.1051 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements Washington § 117.1051 Lake Washington Ship Canal. (a) When fog prevails by day or...

  12. Energy and exergy analysis of a cruise ship

    DEFF Research Database (Denmark)

    Baldi, Francesco; Ahlgren, Fredrik; Nguyen, Tuong-Van

    2015-01-01

    to its final use on board. To illustrate this, we perform ed an analysis of the energy and exergy flow rates of a cruise ship sailing in the Baltic Sea based on a combination of available measurements from ship operations and of mechanistic knowledge of the system . The energy analys is allows...

  13. Ships on hero stones from the west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Tripati, S.

    ships and three each are proceeding from left and right to engage in a naval battle (Fig. 9). The rest two panels portray worship of Siva Linga, and scenes of music and dancing. The sixth hero stone has two panels. In the bottom panel, ships are shown...

  14. Risk evaluation methods at individual ship and company level

    NARCIS (Netherlands)

    C. Heij (Christiaan); S. Knapp (Sabine)

    2011-01-01

    textabstractSafety management and risk profiling to identify substandard ships are of importance to the shipping industry. Whereas current methods rely heavily on detention risk and flag state performance, we extend the risk assessment by considering various risk dimensions and by evaluating a wide

  15. Wave-induced hydroelastic response of fast monohull displacement ships

    DEFF Research Database (Denmark)

    Jensen, Jørgen Juncher; Wang, Zhaohui

    1998-01-01

    High-speed ships are weight sensitive structures and high strength steel, aluminium or composites are preferred building materials. It is characteristic for these materials that they result in larger hull flexibility than more conventional materials. Therefore, for large fast ships the lowest...

  16. Wave-induced Hydroelastic response of fast monohull ships

    DEFF Research Database (Denmark)

    Jensen, Jørgen Juncher

    1996-01-01

    High-speed ships are weight sensitive structures and high strength steel, aluminium or composites are preferred building materials. it is characteristic for these materials that they result in larger hull flexibility than more conventional materials. Therefore, for large fast ships the lowest...... to the hull flexibility due to the high zero crossing periods associated with the extreme responses....

  17. 75 FR 63888 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2010-10-18

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Shipping Coordinating Committee; Notice of Committee Meeting The Shipping Coordinating Committee (SHC) will conduct an... regarding piracy --Matters arising from the 25th extraordinary and the 104th regular sessions of the...

  18. 76 FR 12787 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2011-03-08

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Shipping Coordinating Committee; Notice of Committee Meeting The Shipping Coordinating Committee (SHC) will conduct an... piracy; --Matters arising from the 105th regular session of the IMO Council; --Technical...

  19. 77 FR 12353 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2012-02-29

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Shipping Coordinating Committee; Notice of Committee Meeting The Shipping Coordinating Committee (SHC) will conduct an... Convention, 2006; Fair treatment of seafarers in the event of a maritime accident; Piracy; Matters...

  20. 78 FR 17467 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2013-03-21

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Shipping Coordinating Committee; Notice of Committee Meeting The Shipping Coordinating Committee (SHC) will conduct an... seafarers in the event of a maritime accident. --Piracy. --Collation and preservation of evidence...

  1. 77 FR 21619 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2012-04-10

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF STATE Shipping Coordinating Committee; Notice of Committee Meeting The Shipping Coordinating Committee (SHC) will... implementation of new measures; Role of the human element; Formal safety assessment; Piracy and armed...

  2. Recovery and Cultivation of Keratinocytes From Shipped Mouse Skin.

    Science.gov (United States)

    Yang, Hsin-Ya; La, Thi Dinh; Gurenko, Zhanna; Steenhuis, Pieter; Liu, Wei; Isseroff, R Rivkah

    2015-02-01

    Murine keratinocyte culture from neonatal skin is an important tool for studying the functional role of specific genes in epithelial biology. However, when the transgenic animal is only available in a geographically distant local, obtaining viable keratinocytes can be problematic. A method for transferring the isolated murine skin from collaborating labs could decrease the cost of shipping live animals, and would allow the efficient use of the tissues from the transgenic animals. Here we optimized shipping conditions and characterized the cells retrieved and cultured from mouse skin shipped for 48 h at 0 °C. The cultured keratinocytes from the control, non-shipped skin and the 2-day shipped skin were 43.6 +/- 7.8% viable, doubled every 2 days, and expressed comparable amounts of heat shock proteins and CD29/integrin beta-1. However, under the same shipping conditions, the 3-day shipped tissue failed to establish colonies in the culture. Therefore, this 2-day shipping technique allows the transfer mouse skin from distant locations with recovery of viable, propagatable keratinocytes, facilitating long-distance collaborations.

  3. Toolset for evaluating infrared countermeasures and signature reduction for ships

    NARCIS (Netherlands)

    Schleijpen, H.M.A.

    2010-01-01

    The protection of ships against infrared guided missiles is a concern for modern naval forces. The vulnerability of ships can be reduced by applying countermeasures such as infrared decoys and infrared signature reduction. This paper presents a set of simulation tools which can be used for assessing

  4. Multi-criterion scantling optimisation of cruise ships

    OpenAIRE

    2010-01-01

    A numerical tool for the optimisation of the scantlings of a ship is extended by considering production cost, weight and moment of iner tia in the objective function. A multi-criteria optimisation of a passenger ship is conducted to illustrate the analysis process. Pareto frontiers are obtained and results are verified with Bureau Veritas rules.

  5. Journeys on the Rivers and Oceans: Ship Transportation

    Science.gov (United States)

    Ritz, John M.; Carper, Susan

    2008-01-01

    Ship transportation includes various forms of technology. Ships have special designs to meet technological needs. They are used to transport people and cargoes and have been a major part of history throughout civilization. Products are available from around the world because they can be economically moved from producers to consumers. Not only are…

  6. Strength of Ship Stiffened Panels under Combined Loading

    DEFF Research Database (Denmark)

    Weicheng, Cui; Wang, Young-jun; Pedersen, Preben Terndrup

    2000-01-01

    A ship's hull is a box girder structure composed of stiffened panels and therefore, strength of stiffened panels plays a significant role for the ultimate strength analysis of ship structures. In recent years several authors have proposed simplified methods to calculate the ultimate strength of s...

  7. 29 CFR 1915.164 - Ship's propulsion machinery.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false Ship's propulsion machinery. 1915.164 Section 1915.164 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION... Machinery and Piping Systems § 1915.164 Ship's propulsion machinery. (a) Before work is performed on...

  8. Cruise ship care: a proposed alternative to assisted living facilities.

    Science.gov (United States)

    Lindquist, Lee A; Golub, Robert M

    2004-11-01

    Options for elderly patients who can no longer remain independent are limited. Most choices involve assisted living facilities, 24-hour caregivers, or nursing homes. State and federal assistance for payment for individual care is limited, and seniors usually pay for most costs out of pocket. For those patients who have the means to afford assisted living centers or nursing homes, "cruise ship care" is proposed. Traveling alongside traditional tourists, groups of seniors would live on cruise ships for extended periods of time. Cruise ships are similar to assisted living centers in the amenities provided, costs per month, and many other areas. This article begins with an examination of the needs of seniors in assisted living facilities and then explores the feasibility of cruise ship care in answering those needs. Similarities between cruise ship travel and assisted living care, as well as the monetary costs of both options, are defined. A decision tree with selections for non-independent care for seniors was created including cruise ship care as an alternative. Using a Markov model over 20 years, a representative cost-effectiveness analysis was performed that showed that cruises were priced similarly to assisted living centers and were more efficacious. Proposed ways that cruise ship companies could further accommodate the needs of seniors interested in this option are also suggested. Implementation for cruise ship care on the individual basis is also presented. Ultimately, it is wished to introduce a feasible and possibly more desirable option to seniors who can no longer remain independent.

  9. 78 FR 77773 - Shipping Coordinating Committee; Notice of Committee Meeting

    Science.gov (United States)

    2013-12-24

    ... --Development of guidance for the implementation of the 2010 Manila Amendments --Follow-up action to the STCW-F... System (GMDSS) --Proposed review of STCW passenger ship specific safety training --Training in hot work... STCW Convention --Development of the International Code of safety for ships using gases or low...

  10. New south exit channel in Río de la Plata: A preliminary design study

    NARCIS (Netherlands)

    Brandt, J.; Minnee, K.; Kramer, V.; Gerrits, S.; Winter, R.

    2015-01-01

    The authorities of Argentina wish to improve the accessibility of the ports located in the Río de la Plata and upstream to the Paraná River. The water depth in the Río de la Plata is very shallow and did not suffice for vessels to navigate. Therefore navigation channels have been dredged. Ship draft

  11. High-speed quantum networking by ship.

    Science.gov (United States)

    Devitt, Simon J; Greentree, Andrew D; Stephens, Ashley M; Van Meter, Rodney

    2016-11-02

    Networked entanglement is an essential component for a plethora of quantum computation and communication protocols. Direct transmission of quantum signals over long distances is prevented by fibre attenuation and the no-cloning theorem, motivating the development of quantum repeaters, designed to purify entanglement, extending its range. Quantum repeaters have been demonstrated over short distances, but error-corrected, global repeater networks with high bandwidth require new technology. Here we show that error corrected quantum memories installed in cargo containers and carried by ship can provide a exible connection between local networks, enabling low-latency, high-fidelity quantum communication across global distances at higher bandwidths than previously proposed. With demonstrations of technology with sufficient fidelity to enable topological error-correction, implementation of the quantum memories is within reach, and bandwidth increases with improvements in fabrication. Our approach to quantum networking avoids technological restrictions of repeater deployment, providing an alternate path to a worldwide Quantum Internet.

  12. Examination of shipping package 9975-02403

    Energy Technology Data Exchange (ETDEWEB)

    Daugherty, W. L. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

    2016-03-01

    SRNL examined shipping package 9975-02403 following storage of nuclear material in K-Area Complex (KAC). As a result of field surveillance activities in KAC, this package was identified to contain several non-conforming and other conditions. Further examination of this package in SRNL confirmed significant moisture and mold in the bottom layers of the lower fiberboard assembly, and identified additional corrosion along the seam weld and on the bottom of the drum. It was recently recommended that checking for corrosion along the bottom edge of the drum be implemented for packages that are removed from storage, as well as high wattage packages remaining in storage. The appearance of such corrosion on 9975-02403 further indicates that such corrosion may provide an indication of significant moisture concentration and related degradation within the package. This condition is more likely to develop in packages with higher internal heat loads.

  13. Quantification Methods of Management Skills in Shipping

    Directory of Open Access Journals (Sweden)

    Riana Iren RADU

    2012-04-01

    Full Text Available Romania can not overcome the financial crisis without business growth, without finding opportunities for economic development and without attracting investment into the country. Successful managers find ways to overcome situations of uncertainty. The purpose of this paper is to determine the managerial skills developed by the Romanian fluvial shipping company NAVROM (hereinafter CNFR NAVROM SA, compared with ten other major competitors in the same domain, using financial information of these companies during the years 2005-2010. For carrying out the work it will be used quantification methods of managerial skills to CNFR NAVROM SA Galati, Romania, as example mentioning the analysis of financial performance management based on profitability ratios, net profit margin, suppliers management, turnover.

  14. EXAMINATION OF SHIPPING PACKAGE 9975-05050

    Energy Technology Data Exchange (ETDEWEB)

    Daugherty, W.

    2014-11-06

    Shipping package 9975-05050 was examined in K-Area following its identification as a high wattage package. Elevated temperature and fiberboard moisture content are key parameters that impact the degradation rate of fiberboard within 9975 packages in a storage environment. The high wattage of this package contributes significantly to component temperatures. After examination in K-Area, the package was provided to SRNL for further examination of the fiberboard assembly. The moisture content of the fiberboard was relatively low (compared to packages examined previously), but the moisture gradient (between fiberboard ID and OD surfaces) was relatively high, as would be expected for the high heat load. The cane fiberboard appeared intact and displayed no apparent change in integrity relative to a new package.

  15. Ship building Industry,Ready to Sail

    Institute of Scientific and Technical Information of China (English)

    Yang Wei

    2009-01-01

    @@ The shipbuilding industry is known as"the head of comprehensive industries"among all national sectors,due to its wide-linked production line,long production process,and huge investment for each order.A single order to build a 10,000-ton vessel can provide 3,000 jobs for shipbuilders and related upstream industries.At present,China has become the world's second largest shipbuilder.In 2008,China shipbuilding capacity amounted to 2,881 million tons,29.5% of the world total;China's ship orders accounted for 35.5%of the world total,and 37.7% of new orders.

  16. Ship's stern bulb

    Energy Technology Data Exchange (ETDEWEB)

    Allan, R.G.; Diepen, P.J.

    1988-06-07

    This invention relates to the propulsion of self-propelled vessels, and in particular to the form of a ship's stern. The invention describes a new and distinctive form of bulbous-shaped stern from which, unlike other stern bulbs developed to date, does not fair into the hull, instead intersecting it to create a sharp discontinuity between surfaces. This discontinuity creates a turbulent zone along the said intersection, allowing the wake to reorganize and to follow in a desired pattern the bulb's shape in the proximity of the propeller. Thus a more uniform wake field is formed within the propeller disc, consequently improving propeller efficiency and reducing propeller induced vibration. These effects, which result in improved quietness and overall efficiency of a running propeller, along with other improved characteristics, have been confirmed by a preliminary series of model tests. The form of the bulb, and its attendant benefits, are described.

  17. High-speed quantum networking by ship

    Science.gov (United States)

    Devitt, Simon J.; Greentree, Andrew D.; Stephens, Ashley M.; van Meter, Rodney

    2016-11-01

    Networked entanglement is an essential component for a plethora of quantum computation and communication protocols. Direct transmission of quantum signals over long distances is prevented by fibre attenuation and the no-cloning theorem, motivating the development of quantum repeaters, designed to purify entanglement, extending its range. Quantum repeaters have been demonstrated over short distances, but error-corrected, global repeater networks with high bandwidth require new technology. Here we show that error corrected quantum memories installed in cargo containers and carried by ship can provide a exible connection between local networks, enabling low-latency, high-fidelity quantum communication across global distances at higher bandwidths than previously proposed. With demonstrations of technology with sufficient fidelity to enable topological error-correction, implementation of the quantum memories is within reach, and bandwidth increases with improvements in fabrication. Our approach to quantum networking avoids technological restrictions of repeater deployment, providing an alternate path to a worldwide Quantum Internet.

  18. The KiteShip (TM) project

    Energy Technology Data Exchange (ETDEWEB)

    De winter, Francis; Swenson, Ronald B; Culp, David [Santa Cruz, CA (United States)

    2000-07-01

    Foreseeable crude oil shortages provide an incentive to use wind power in the merchant marine again, to save fuel by providing propulsion power. Out prototype KiteShip (TM), a lightweight fiberglass proa 7 m long, has been sailed with 2 different sizes of kites in fresh water. The kites are shaped like parafoil wings, with areas of 4 sq m and 9 sq m. Steering is accomplished with two coupled rudders, one fore and one aft. We have been encouraged by the boat speed and the handling, although we have encountered only light winds up to now, of no more than about 20 km/ht. In the next phase we will employ a custom-built kite of 2 sq m. and will also start sailing in the ocean with heavier winds, of 40 km/hr and above. [Spanish] La escasez previsible de petroleo motiva volver a utilizar la fuerza del viento en la marina mercante, para ahorrar combustible al suministrar la potencia de propulsion. Nuestro prototipo KiteShip (MR), con una proa ligera de fibra de vidrio con 7 m de longitud, ha navegado con dos diferentes tipos de vela ({sup k}ite{sup )} en agua dulce. Los kites tienen forma de alas de parafol, con areas de 4 m{sup 2} y 9 m{sup 2}. La direccion se logra con dos timones acoplados, uno en la proa y otro en la popa. Nos entusiasmo la velocidad del bote y su manejo, aunque hemos encontrado hasta ahora solo vientos ligeros de no mas de alrededor de 20 km/hr. En la siguiente fase emplearemos un kite hecho a la medida, de 28 m{sup 2} y tambien comenzaremos a navegar en el oceano con vientos mas fuertes de 40 km/hr o mas.

  19. The right whale mandatory ship reporting system: a retrospective

    Directory of Open Access Journals (Sweden)

    Gregory K. Silber

    2015-03-01

    Full Text Available In 1998, the United States sought and received International Maritime Organization-endorsement of two Mandatory Ship Reporting (MSR systems designed to improve mariner awareness about averting ship collisions with the endangered North Atlantic right whale (Eubalaena glacialis. Vessel collisions are a serious threat to the right whale and the program was among the first formal attempts to reduce this threat. Under the provisions of the MSR, all ships >300 gross tons are required to report their location, speed, and destination to a shore-based station when entering two key right whale habitats: one in waters off New England and one off coastal Georgia and Florida. In return, reporting ships receive an automatically-generated message, delivered directly to the ship’s bridge, that provides information about right whale vulnerability to vessel collisions and actions mariners can take to avoid collisions. The MSR has been in operation continuously from July 1999 to the present. Archived incoming reports provided a 15-plus year history of ship operations in these two locations. We analyzed a total of 26,772 incoming MSR messages logged between July 1999 and December 2013. Most ships that were required to report did so, and compliance rates were generally constant throughout the study period. Self-reported vessel speeds when entering the systems indicated that most ships travelled between 10 and 16 (range = 5–20 + knots. Ship speeds generally decreased in 2009 to 2013 following implementation of vessel speed restrictions. The number of reports into the southern system remained relatively constant following a steady increase through 2007, but numbers in the northern system decreased annually beginning in 2008. If reporting is indicative of long-term patterns in shipping operations, it reflects noteworthy changes in marine transportation. Observed declines in ship traffic are likely attributable to the 2008–2009 economic recession, the

  20. Wastewater Pollution from Cruise Ships in the Adriatic Sea

    Directory of Open Access Journals (Sweden)

    Tina Perić

    2016-08-01

    Full Text Available The global growth of cruise tourism has brought increasing concern for the pollution of the marine environment. Marine pollution from sanitary wastewater is a problem especially pronounced on large cruise ships where the number of people on board may exceed 8,000. To evaluate future marine pollution in any selected period of time it is necessary to know the movement of ships in the Adriatic Sea. This paper presents the problem of marine pollution by sanitary wastewater from cruise ships, wastewater treatment technology and a model of cruise ship traffic in the Adriatic Sea considering MARPOL Annex IV areas of limited wastewater discharge. Using the model, it is possible to know in advance the routes of the cruisers and retention time in certain geographic areas. The data obtained by this model can be used as input parameters for evaluation model of wastewater pollution or for evaluation of other types of pollution from cruise ships.

  1. Estimation of waves and ship responses using onboard measurements

    DEFF Research Database (Denmark)

    Montazeri, Najmeh

    of measured ship responses, a parametric description of directional wave spectra (a generalised JONSWAP model) and the transfer functions of the ship responses. The difference between the spectral moments of the measured ship responses and the corresponding theoretically calculated moments formulates a cost....... The predicted variances of the responses are compared with actual measurements. The relatively good agreement in this comparison validates the model and the optimisation method. Finally, an uncertainty analysis of the presented approach is implemented to assess the reliability of the method.......This thesis focuses on estimation of waves and ship responses using ship-board measurements. This is useful for development of operational safety and performance efficiency in connection with the broader concept of onboard decision support systems. Estimation of sea state is studied using a set...

  2. USACE Navigation Channels 2012

    Data.gov (United States)

    California Department of Resources — This dataset represents both San Francisco and Los Angeles District navigation channel lines. All San Francisco District channel lines were digitized from CAD files...

  3. Optimizing Ship-to-Shore Movement for Hospital Ship Humanitarian Assistance Operations

    Science.gov (United States)

    2008-03-01

    Programming – The Global Search.” (2007). ———. Xpress -MP Release 2007 www.dashoptimization.com (accessed March 21, 2008). Department of the Navy...of personnel between T-AH and watercraft. The T-AH HAT model is implemented in Xpress -MP, with a supporting MS- Access database. Our optimized...Governmental Organization (NGO) partners. It has been noted hospital ships may be viewed as offensive participants in the so-called Global War on

  4. Capability of geometric features to classify ships in SAR imagery

    Science.gov (United States)

    Lang, Haitao; Wu, Siwen; Lai, Quan; Ma, Li

    2016-10-01

    Ship classification in synthetic aperture radar (SAR) imagery has become a new hotspot in remote sensing community for its valuable potential in many maritime applications. Several kinds of ship features, such as geometric features, polarimetric features, and scattering features have been widely applied on ship classification tasks. Compared with polarimetric features and scattering features, which are subject to SAR parameters (e.g., sensor type, incidence angle, polarization, etc.) and environment factors (e.g., sea state, wind, wave, current, etc.), geometric features are relatively independent of SAR and environment factors, and easy to be extracted stably from SAR imagery. In this paper, the capability of geometric features to classify ships in SAR imagery with various resolution has been investigated. Firstly, the relationship between the geometric feature extraction accuracy and the SAR imagery resolution is analyzed. It shows that the minimum bounding rectangle (MBR) of ship can be extracted exactly in terms of absolute precision by the proposed automatic ship-sea segmentation method. Next, six simple but effective geometric features are extracted to build a ship representation for the subsequent classification task. These six geometric features are composed of length (f1), width (f2), area (f3), perimeter (f4), elongatedness (f5) and compactness (f6). Among them, two basic features, length (f1) and width (f2), are directly extracted based on the MBR of ship, the other four are derived from those two basic features. The capability of the utilized geometric features to classify ships are validated on two data set with different image resolutions. The results show that the performance of ship classification solely by geometric features is close to that obtained by the state-of-the-art methods, which obtained by a combination of multiple kinds of features, including scattering features and geometric features after a complex feature selection process.

  5. The influence of shallow water and hull form variations on inland ship resistance

    NARCIS (Netherlands)

    Rotteveel, E.; Hekkenberg, R.G.

    2015-01-01

    Effects of a hull form variation and shallow water on a 110-meter inland ship are presented as preliminary results of the Top Ships project, which is initiated in order to improve inland ship design tools and design guidelines.

  6. Numerical Prediction of Hydrodynamic Forces on A Berthed Ship Induced by A Passing Ship in Different Waterway Geometries

    Institute of Scientific and Technical Information of China (English)

    王宏志; 邹早建

    2016-01-01

    An investigation has been conducted to quantify the effect of waterway geometry on the form and magnitude of forces and moment experienced by a berthed ship due to a passing ship. By using the dynamic mesh technique and solving the unsteady RANS equations in conjunction with a RNGk−ε turbulence model, numerical simulation of the three-dimensional unsteady viscous flow around a passing ship and a berthed ship in different waterway geometries is conducted, and the hydrodynamic forces and moment acting on the berthed ship are calculated. The proposed method is verified by comparing the numerical results with existing empirical curves and a selection of results from model scale experiments. The calculated interaction forces and moment are presented for six different waterway geometries. The magnitude of the peak values and the form of the forces and moment on the berthed ship for different cases are investigated to assess the effect of the waterway geometry.The results of present study can provide certain guidance on safe maneuvering of a ship passing by a berthed ship.

  7. Burn Care on Cruise Ships-Epidemiology, international regulations, risk situation, disaster management and qualification of the ship's doctor.

    Science.gov (United States)

    Ottomann, C; Hartmann, B; Antonic, V

    2016-09-01

    With the increasing numbers of passengers and crew on board vessels that are becoming larger and larger, the demand for ship's doctors who can adequately treat burns on board has also increased. In the cruise ship industry it is usually those doctor's with internal and general medical training who are recruited from an epidemiological point of view. Training content or recommendations for the treatment of thermal lesions with the limited options available in ship's hospitals and where doctors with no surgical training operate do not yet exist. The guidelines recommended by the Cruise Lines International Association (CLIA) regarding medical staff have only included physicians with minor surgical skills until now. With the introduction of the ATLS(®) course developed by the American College of Surgeons, the requirements for the qualification of the ship's doctor on board cruise ships shall change from January 2017. The article discusses the question of whether having completed the ATLS(®) course, the ship's doctor is trained to adequately treat thermal lesions or severe burns persons on-board, and presents the current discussion on the training content for ship's doctors within the International Maritime Health Association (IMHA). It also provides an overview of existing international regulatory frameworks, the risks presented by a fire on board, the problem of treating burns victims out of reach of coastal rescue services, and alternative training concepts for ship's doctors regarding the therapy of thermal lesions on-board.

  8. KV7 potassium channels

    DEFF Research Database (Denmark)

    Stott, Jennifer B; Jepps, Thomas Andrew; Greenwood, Iain A

    2014-01-01

    Potassium channels are key regulators of smooth muscle tone, with increases in activity resulting in hyperpolarisation of the cell membrane, which acts to oppose vasoconstriction. Several potassium channels exist within smooth muscle, but the KV7 family of voltage-gated potassium channels have been...

  9. Quantum Multiple Access Channel

    Institute of Scientific and Technical Information of China (English)

    侯广; 黄民信; 张永德

    2002-01-01

    We consider the transmission of classical information over a quantum channel by many senders, which is a generalization of the two-sender case. The channel capacity region is shown to be a convex hull bound by the yon Neumann entropy and the conditional yon Neumann entropies. The result allows a reasonable distribution of channel capacity over the senders.

  10. Cardiac potassium channel subtypes

    DEFF Research Database (Denmark)

    Schmitt, Nicole; Grunnet, Morten; Olesen, Søren-Peter

    2014-01-01

    About 10 distinct potassium channels in the heart are involved in shaping the action potential. Some of the K(+) channels are primarily responsible for early repolarization, whereas others drive late repolarization and still others are open throughout the cardiac cycle. Three main K(+) channels...

  11. 豪华邮轮空间划分设计原则%Dividing and Design Principles of Interior Space of Luxury Cruise Ship

    Institute of Scientific and Technical Information of China (English)

    王驰明; 章新智; 郭昂; 岳猛

    2014-01-01

    In this paper, the main design parameters of cruise ship are statistical analyzed in terms of relevant norms of steel ships and ergonomic requirements. Design principles and methods of channels are discussed also. The result would be an important reference for improving the research and design development for cruise ship.%参考钢质海船相关规范以及人体工程学的要求,统计分析了豪华邮轮各部分主要设计参数,并讨论了通道的设计原则及方法,对提高豪华邮轮研发设计有一定参考价值。

  12. Baldwin 培训迁移理论在护理人员培训中的应用%Application of Baldwin’s Theory of Transfer of Training in the Training of Nurses

    Institute of Scientific and Technical Information of China (English)

    马芳; 梁红敏

    2015-01-01

    As one of the most important way of human resources regeneration,training has gained ex-tensive attention in nursing management,yet the transformation of training results is not satisfied.In this paper,the theoretical reference for the transformation of training results and the practical guid-ance for improving the training effectiveness in nurses were put forward based on the training practice of nurse human resources and the Baldwin’s theory of transfer of training,which can help establish the more effective training management system.%培训作为人力资源再生的重要手段之一在护理管理中得到广泛重视,然而当前培训成果转化却不尽如人意。本文从国内护理人力资源培训实践的角度出发,借鉴 Baldwin 培训迁移理论,为护理人员培训成果转化提供理论参考,为提高护理人员培训效果提供实践指导,有助于护理人力资源管理建立更加有效的培训管理体系。

  13. 2011 NOAA Ortho-rectified Mosaic of Brownsville Ship Channel, Texas

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains ortho-rectified mosaic tiles, created as a product from the NOAA Integrated Ocean and Coastal Mapping (IOCM) initiative. The source imagery...

  14. 2012 NOAA Ortho-rectified Color Mosaic of Sacramento Deep Water Ship Channel, California

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains ortho-rectified mosaic tiles, created as a product from the NOAA Integrated Ocean and Coastal Mapping (IOCM) initiative. The source imagery...

  15. 2011 NOAA Ortho-rectified Mosaic of Matagorda Ship Channel, Texas (NODC Accession 0105604(

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains ortho-rectified mosaic tiles, created as a product from the NOAA Integrated Ocean and Coastal Mapping (IOCM) initiative. The source imagery...

  16. Experimental Effect of Propeller-Coating of Training Ship Kakuyo Maru I

    OpenAIRE

    荒木, 猛; 今田, 忠志; 松山, 晃; 西矢, 豊就

    2000-01-01

    While ships are constructed and after leaving dock, the bottom and the propeller of ships are smooth and clean, however, marine fouling animals adhere to the bottom and the propeller of anchored ships for a long time in harbour. As a result, frictional resistance of ships hull and a shaft horse power of ships increase. Therefore, the ships hull and the propeller of ships are cleaned and painted again in the dock. The hull of Training Ship Kakuyo Maru had been painted self-polishing anti-fouli...

  17. A Conceptual Model to Optimize Operating Cost of Passenger Ships in Macau

    Directory of Open Access Journals (Sweden)

    Xin-long Xu

    2015-01-01

    Full Text Available To facilitate more convenient travel as the economy of Macau expands, the government of Macau has allowed shipping companies to add passenger ships and shipping lines. This paper demonstrates how shipping companies can reduce costs by optimizing passenger ships and crew size. It analyzes operating conditions for each shipping depot, including transit time, ships, and volume of passengers. A series of integer programming models is proposed. After a practical demonstration using Excel to solve the LP model, we show that the reduction in the number of passenger ships and crew size could reach 22.6% and 29.4%, respectively.

  18. High SHIP2 Expression Indicates Poor Survival in Colorectal Cancer

    Directory of Open Access Journals (Sweden)

    Ju Yang

    2014-01-01

    Full Text Available SH2-containing inositol 5′-phosphatase 2 (SHIP2, which generally regulates insulin signaling, cytoskeleton remodeling, and receptor endocytosis, has been suggested to play a significant role in tumor development and progression. However, the associations between SHIP2 expression and the clinical features to evaluate its clinicopathologic significance in colorectal cancer (CRC have not been determined yet. In the present study, one-step quantitative real-time polymerase chain reaction (qPCR test and immunohistochemistry (IHC analysis with CRC tissue microarrays (TMA were employed to evaluate the mRNA and protein expression of SHIP2 in CRC. The results showed that SHIP2 expression in the mRNA and protein levels was significantly higher in CRC tissues than that in corresponding noncancerous tissues (both P<0.05. The expression of SHIP2 protein in CRC was related to lymph node metastasis (P=0.036, distant metastasis (P=0.001, and overall survival (P=0.009. Kaplan-Meier method and Cox multifactor analysis suggested that high SHIP2 protein level (P=0.040 and positive distant metastasis (P=0.048 were critically associated with the unfavorable survival of CRC patients. The findings suggested that SHIP2 may be identified as a useful prognostic marker in CRC and targeting CRC may provide novel strategy for CRC treatment.

  19. Liner Shipping Fleet Deployment with Sustainable Collaborative Transportation

    Directory of Open Access Journals (Sweden)

    Gang Du

    2016-02-01

    Full Text Available Facing sharp competition in the market for shipping companies, it is necessary to make reasonable and efficient decisions to optimize the container shipping line network so as to improve the shipping efficiency and reduce the transportation cost, as well as to realize the transportation sustainability. Therefore, the liner ship fleet deployment problem with collaborative transportation is proposed in this paper. This problem is formulated as a mixed-integer linear programming model that takes collaborative transportation into consideration. The model includes fixed cost, variable cost, berth cost, transport cost, penalty, compensation cost, and so on. To achieve the sustainable development of collaborative transportation, the shipping companies could make a selection between the internal routes and the external routes to serve each task by comparing the distance between the above routes. A real Asia-Europe-Oceania numerical experiment shows that the proposed sustainable collaborative transportation model can be efficiently solved by C++ calling ILOG CPLEX. Results demonstrate that the optimized shipping line network with sustainable collaborative transportation can improve the service efficiency, as well as the service level of shipping companies.

  20. Protocol channels as a new design alternative of covert channels

    CERN Document Server

    Wendzel, Steffen

    2008-01-01

    Covert channel techniques are used by attackers to transfer hidden data. There are two main categories of covert channels: timing channels and storage channels. This paper introduces a third category called protocol channels. A protocol channel switches one of at least two protocols to send a bit combination to a destination while sent packets include no hidden information themselves.

  1. Surface vacancy channels through ion channeling

    Energy Technology Data Exchange (ETDEWEB)

    Redinger, Alex; Standop, Sebastian; Michely, Thomas [II. Physikalisches Institut, Universitaet Koeln, Zuelpicher Strasse 77, 50937 Koeln (Germany); Rosandi, Yudi; Urbassek, Herbert M. [Fachbereich Physik, Technische Universitaet Kaiserslautern, Erwin-Schroedinger-Strasse, D-67663 Kaiserslautern (Germany)

    2009-07-01

    Damage patterns of single ion impacts on Pt(111) have been studied by scanning tunneling microscopy (STM) and molecular dynamics simulations (MD). Low temperature experiments, where surface diffusion is absent, have been performed for argon and xenon ions with energies between 1 keV and 15 keV at an angle of incidence of 86 {sup circle} measured with respect to the surface normal. Ions hitting preexisting illuminated step edges penetrate into the crystal and are guided in open crystallographic directions, one or more layers underneath the surface (subsurface channeling). In the case of argon channeling the resulting surface damage consists of adatom and vacancy pairs aligned in ion beam direction. After xenon channeling thin surface vacancy trenches along the ion trajectories - surface vacancy channels - are observed. They result from very efficient sputtering and adatom production along the ion trajectory. This phenomena is well reproduced in molecular dynamics simulations of single ion impacts at 0 K. The damage patterns of Argon and Xenon impacts can be traced back to the different energy losses of the particles in the channel. Channeling distances exceeding 1000 A for 15 keV xenon impacts are observed.

  2. Way of sale-leaseback ship financing%售后回租船舶融资的方式

    Institute of Scientific and Technical Information of China (English)

    石永强; 王荔; 杨磊; 张智勇

    2011-01-01

    为改善我国船舶融资现状,通过分析当前我国船舶融资现状、融资租赁的税收政策、售后回租融资方式的优点以及国外一些有效的融资方式,在新加坡海事信托基金模式的基础上,提出基于基金银团的售后回租船舶融资方式.该融资方式可克服传统船舶融资方式的弊端、拓宽售后回租船舶融资租赁的融资渠道、降低中小型企业融资门槛,使得融资活动更加灵活、高效.%In order to improve the current situation of ship financing in China, a ship financing way based on fund syndicate is proposed based on the mode of Singapore Maritime Trust Fund by analyzing the current situation of ship financing in China, the tax policies about financing lease, the advantages of the way of sale-leaseback financing, and some effective financing approaches in other countries. The proposed financing way can overcome the shortcomings of traditional ship financing ways, widen the financing channels of sale-leaseback ship financing release, and lower the financing threshold for small and medium enterprises, which make the financing activities more flexible and efficient.

  3. Air pollution from ships in three Danish ports

    Science.gov (United States)

    Saxe, H.; Larsen, T.

    The operational meteorological air quality model (OML) was used to calculate the urban dispersion of air pollutants originating from ships in three Danish ports: Copenhagen, Elsinore and Køge. Oxides of nitrogen (NO x=NO+NO 2) emitted by ships in the port of Copenhagen contributed substantially to the overall NO x pollution in central Copenhagen. This would have an impact on human health if most of the NO were occasionally transformed into NO 2, for which the European Community's legal limit is defined by the 19th-highest annual hourly value being 200 μg m -3 NO 2. Emissions by the ships caused a maximum 19th hourly NO x concentration of 615 μg m -3. In a small area of housing estates and office blocks near the harbour, it exceeded 200 μg m -3 NO x, and over several square kilometres of central Copenhagen, the emission by ships in harbour similarly caused values of 50-200 μg m -3 NO x. In the port of Elsinore, ferries contributed significantly to the NO x pollution in the neighbourhood around the harbour. Emissions of particulate matter (PM) by ships in Copenhagen harbour caused neighbourhood concentrations equivalent to only 0.2-0.4% of the European Community's legal annual mass-based limit value for the protection of human health. However, ship emissions are dominated by ultrafine particles, as are diesel vehicle emissions, which adversely affect human health. Particulate emissions from ships contribute 8-15% of that of all urban road traffic to the background PM 10 levels in the harbour neighbourhoods. In Elsinore, the PM problem was less significant than in Copenhagen. Ships in both harbours will contribute insignificantly to urban pollution with sulphur dioxide (SO 2), once the anticipated regulations on sulphur content in marine fuels are implemented. In Køge, the low activity in the harbour meant that ships did not significantly affect urban air quality.

  4. Six cyclopic ships with the death of one of them.

    Science.gov (United States)

    Cohen, M Michael

    2010-09-01

    Given the knowledge of cyclopic humans and animals and their lethal nature, and given the negative way in which the cyclops is portrayed in mythology and in art, it is unusual that six naval ships--four English and two American--were named "Cyclops." However, there are also important positive attributes of the Cyclopes in Greek mythology, which explain the reasons the ships were given this name. One ship, the USS "Cyclops," with 306 men aboard, was lost at sea in the "Bermuda Triangle" in 1918 without a trace and no wreckage has ever been found.

  5. Genetic Algorithm Optimisation of a Ship Navigation System

    Directory of Open Access Journals (Sweden)

    E. Alfaro-Cid

    2001-01-01

    Full Text Available The optimisation of the PID controllers' gains for separate propulsion and heading control systems of CyberShip I, a scale model of an oil platform supply ship, using Genetic Algorithms is considered. During the initial design process both PID controllers have been manually tuned to improve their performance. However this tuning approach is a tedious and time consuming process. A solution to this problem is the use of optimisation techniques based on Genetic Algorithms to optimise the controllers' gain values. This investigation has been carried out through computer-generated simulations based on a non-linear hydrodynamic model of CyberShip I.

  6. Outline of The probabilistic Concept of Ship Subdivision

    DEFF Research Database (Denmark)

    Pawlowski, Maciej

    1996-01-01

    An outline of the whole probabilistic concept of ship subdivision is given, comprising the latest advances in determination of pi and s1 factors - the two probabilistic factors that form the basis of the new regulations.The method for calculating the pi factor for dry cargo ships is thoroughly...... presented and compared with the original method, developed by IMO inthe late 60's for passenger ships. After that, a review is presented of the past efforts to develop an estimate for the factor si - the most difficultand controversial part of the new subdivision regulations based on the probabilistic...... conditions, assuring a high accuracy of prediction for the si factor....

  7. Satellite measurements of formaldehyde linked to shipping emissions

    Directory of Open Access Journals (Sweden)

    T. Wagner

    2009-11-01

    Full Text Available International shipping is recognized as a pollution source of growing importance, in particular in the remote marine boundary layer. Nitrogen dioxide originating from ship emissions has previously been detected in satellite measurements. This study presents the first satellite measurements of formaldehyde (HCHO linked to shipping emissions as derived from observations made by the Global Ozone Monitoring Experiment (GOME instrument.

    We analyzed enhanced HCHO tropospheric columns from shipping emissions over the Indian Ocean between Sri Lanka and Sumatra. This region offers good conditions in term of plume detection with the GOME instrument as all ship tracks follow a single narrow track in the same east-west direction as used for the GOME pixel scanning. The HCHO signal alone is weak but could be clearly seen in the high-pass filtered data. The line of enhanced HCHO in the Indian Ocean as seen in the 7-year composite of cloud free GOME observations clearly coincides with the distinct ship track corridor from Sri Lanka to Indonesia. The observed mean HCHO column enhancement over this shipping route is about 2.0×1015 molec/cm2.

    Compared to the simultaneously observed NO2 values over the shipping route, those of HCHO are substantially higher; also the HCHO peaks are found at larger distance from the ship routes. These findings indicate that direct emissions of HCHO or degradation of emitted NMHC cannot explain the observed enhanced HCHO values. One possible reason might be increased CH4 degradation due to enhanced OH concentrations related to the ship emissions, but this source is probably too weak to fully explain the observed values.

    The observed HCHO pattern also agrees qualitatively well with results from the coupled earth system model ECHAM5/MESSy applied to atmospheric chemistry (EMAC. However, the modelled HCHO values over the ship corridor are two times lower than in the

  8. 国外船舶融资租赁模式的特点及对宁波的启示%Characteristics of Foreign Shipping Financial Leasing Modes and the Inspiration for Ningbo

    Institute of Scientific and Technical Information of China (English)

    黄春旭

    2014-01-01

    宁波的中小航运企业融资难问题一直是研究热点,文章总结了国际上典型的船舶融资租赁模式,对四类典型模式的特点进行了比较分析;并结合宁波航运企业的融资困境,提出了发展建议,如利用创新融资方式拓宽航运企业融资渠道,尝试建立航运基金,出台船舶融资租赁的税收优惠政策等。%The shipping financial leasing of Ningbo's small and medium shipping enterprises has been a research focus. This paper first summarized the international typical shipping financial leasing modes , and the characteristics of four typical modes were compared. Combined with the financing difficulties of the shipping enterprises in Ningbo, some suggestions were put forward, such as adopting innovative financing methods to broaden the financing channels for shipping enterprises , trying to establish shipping fund and issuing preferential taxation policies on shipping financial leasing.

  9. Fiberboard humidity data for 9975 shipping packages

    Energy Technology Data Exchange (ETDEWEB)

    Daugherty, W. L. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

    2015-07-31

    The 9975 surveillance program is identifying a technical basis to support extending the storage period of 9975 packages in KAC beyond the currently approved 15 years. A key element of this effort is developing a better understanding of degradation of the fiberboard assembly under storage conditions. This degradation is influenced greatly by the moisture content of the fiberboard, which is not well characterized on an individual package basis.Two efforts have been undertaken to better understand the levels and behavior of moisture within the fiberboard assemblies of the 9975 shipping package. In the first effort, an initial survey of humidity and temperature in the upper air space of 26 packages stored in KAC was made. The data collected within this first effort help to illustrate how the upper air space humidity varies with the local ambient temperature and package heat load. In the second effort, direct measurements of two test packages are providing a correlation between humidity and fiberboard moisture levels within the package, and variations in moisture throughout the fiberboard assembly. This effort has examined packages with cane fiberboard and internal heat levels of 5 and 10W to date. Additional testing is expected to include 15 and 19W heat levels, and then repeat the same four heat levels with softwood fiberboard assemblies. This report documents the data collected to date within these two efforts.

  10. Fiberboard Humidity Data for 9975 Shipping Packages

    Energy Technology Data Exchange (ETDEWEB)

    Daugherty, W. [Savannah River Site (SRS), Aiken, SC (United States)

    2015-07-31

    The 9975 surveillance program is identifying a technical basis to support extending the storage period of 9975 packages in KAC beyond the currently approved 15 years. A key element of this effort is developing a better understanding of degradation of the fiberboard assembly under storage conditions. This degradation is influenced greatly by the moisture content of the fiberboard, which is not well characterized on an individual package basis. Two efforts have been undertaken to better understand the levels and behavior of moisture within the fiberboard assemblies of the 9975 shipping package. In the first effort, an initial survey of humidity and temperature in the upper air space of 26 packages stored in KAC was made. The data collected within this first effort help to illustrate how the upper air space humidity varies with the local ambient temperature and package heat load. In the second effort, direct measurements of two test packages are providing a correlation between humidity and fiberboard moisture levels within the package, and variations in moisture throughout the fiberboard assembly. This effort has examined packages with cane fiberboard and internal heat levels of 5 and 10W to date. Additional testing is expected to include 15 and 19W heat levels, and then repeat the same four heat levels with softwood fiberboard assemblies. This report documents the data collected to date within these two efforts

  11. Design of Control and Monitoring System to Avoid Inter-Ship Collisions in West Shipping Lane Tanjung Perak Surabaya

    Directory of Open Access Journals (Sweden)

    Devina P. Sari

    2012-11-01

    Full Text Available The occurrence of several ship accidents in narrow waters of Madura strait which is the west shipping lane of Tanjung Perak Surabaya has inspired the research on the design of a control system on the ship to avoid any collision between ships. The existence of automatic control with the autopilot is required to minimize the occurrence of collisions between ships In this final study investigated the application of fuzzy logic to control the yaw angle on the vessel MV Karana Sembilan. Fuzzy logic used is Sugeno Takagi type with the input of the error yaw, yaw rate and distance of the ship with a disturbance. Tests conducted with a control system without disturbance, with disturbance, and the presence of obstacles in front of the ship. Performance of control system is obtained by using the disturbance, the fuzzy appearance is 2:41 hm distance position, the speed of 7.5 knots and 0.5 error, then the resulting yaw angle is 6580. Results control with fuzzy syncronized with monitoring at M&C system in visual basic. The view of the monitoring, 3 types of scenarios obtained. For the first scenario, which is created with the control on it, produces the best results of the avoidance, if compared to the second scenario, with trajectory and control anti-collision cross, and if compared with the third scenario that has no built control system with decision-making on it.

  12. Ship motion extreme short time prediction of ship pitch based on diagonal recurrent neural network

    Institute of Scientific and Technical Information of China (English)

    SHEN Yan; XIE Mei-ping

    2005-01-01

    A DRNN (diagonal recurrent neural network) and its RPE (recurrent prediction error) learning algorithm are proposed in this paper .Using of the simple structure of DRNN can reduce the capacity of calculation. The principle of RPE learning algorithm is to adjust weights along the direction of Gauss-Newton. Meanwhile, it is unnecessary to calculate the second local derivative and the inverse matrixes, whose unbiasedness is proved. With application to the extremely short time prediction of large ship pitch, satisfactory results are obtained. Prediction effect of this algorithm is compared with that of auto-regression and periodical diagram method, and comparison results show that the proposed algorithm is feasible.

  13. Shipping Fairways, Lanes, and Zones for US waters

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Various shipping zones delineate activities and regulations for marine vessel traffic. Traffic lanes define specific traffic flow, while traffic separation zones...

  14. Damage scenarios and an onboard support system for damaged ships

    Directory of Open Access Journals (Sweden)

    Choi Jin

    2014-06-01

    Full Text Available Although a safety assessment of damaged ships, which considers environmental conditions such as waves and wind, is important in both the design and operation phases of ships, in Korea, rules or guidelines to conduct such assessments are not yet developed. However, NATO and European maritime societies have developed guidelines for a safety assessment. Therefore, it is required to develop rules or guidelines for safety assessments such as the Naval Ship Code (NSC of NATO. Before the safety assessment of a damaged ship can be performed, the available damage scenarios must be developed and the safety assessment criteria must be established. In this paper, the parameters related to damage by accidents are identified and categorized when developing damage scenarios. The need for damage safety assessment criteria is discussed, and an example is presented. In addition, a concept and specifications for the DB-based supporting system, which is used in the operation phases, are proposed.

  15. Research Ship Southern Surveyor Underway Meteorological Data, Quality Controlled

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Research Ship Southern Surveyor Underway Meteorological Data (delayed ~10 days for quality control) are from the Shipboard Automated Meteorological and Oceanographic...

  16. Using Face Recognition System in Ship Protection Process

    Directory of Open Access Journals (Sweden)

    Miroslav Bača

    2006-03-01

    Full Text Available The process of security improvement is a huge problem especiallyin large ships. Terrorist attacks and everyday threatsagainst life and property destroy transport and tourist companies,especially large tourist ships. Every person on a ship can berecognized and identified using something that the personknows or by means of something the person possesses. The bestresults will be obtained by using a combination of the person'sknowledge with one biometric characteristic. Analyzing theproblem of biometrics in ITS security we can conclude that facerecognition process supported by one or two traditional biometriccharacteristics can give very good results regarding ship security.In this paper we will describe a biometric system basedon face recognition. Special focus will be given to crew member'sbiometric security in crisis situation like kidnapping, robbelyor illness.

  17. Conceptual Study of Permanent Magnet Machine Ship Propulsion Systems

    Science.gov (United States)

    1977-12-01

    thyristors and can be either water or air cooled. The machine-cycloconverter, many-phase or parallel three-phase connection design offers a drive system with characteristics well matched to a ship propulsion system.

  18. Marginality and Social Rejection in Amiri Baraka's Slave Ship

    Directory of Open Access Journals (Sweden)

    Hamid Hammad Abed

    2016-11-01

    Full Text Available Marginality and social rejection are the most influential matters exploited by Baraka to intentionally criticize the American society.  More often than not, these two matters have become the scenes of major or minor acts of humiliation and dehumanization that threaten to violate the ethical rules of living. This paper aims at investigating the impact of marginality and social rejection on a number of black characters in Baraka's Slave Ship who are brought to America to be sold as commodities. It is divided into two sections and conclusion. Section one deals with Amiri Baraka’s dramatic thought and experience of marginality within the American society. The textual analysis of Slave Ship is investigated in section two. The significance of the study lies in its textual exploration of the impact of marginality and social rejection in subverting the American dream of democracy, freedom, and equality in Baraka’s Slave Ship. Keywords: marginality, Baraka, rejection, slave ship, black

  19. Modeling the seakeeping performance of luxury cruise ships

    Science.gov (United States)

    Cao, Yu; Yu, Bao-Jun; Wang, Jian-Fang

    2010-09-01

    The seakeeping performance of a luxury cruise ship was evaluated during the concept design phase. By comparing numerical predictions based on 3-D linear potential flow theory in the frequency domain with the results of model tests, it was shown that the 3-D method predicted the seakeeping performance of the luxury cruise ship well. Based on the model, the seakeeping features of the luxury cruise ship were analyzed, and then the influence was seen of changes to the primary design parameters (center of gravity, inertial radius, etc.). Based on the results, suggestions were proposed to improve the choice of parameters for luxury cruise ships during the concept design phase. They should improve seakeeping performance.

  20. Compounding the Losses of Convoyed Ships Attacked by Tactical Submarines

    Directory of Open Access Journals (Sweden)

    Kåre M. Mjelde

    1982-10-01

    Full Text Available It is demonstrated that a time dependent stochastic model for the losses of convoyed ships attacked by submarines can be applied in the determination of the losses in terms of the results of two submodels: