WorldWideScience

Sample records for polar maritime air

  1. Review of maritime transportation air emission pollution and policy analysis

    Science.gov (United States)

    Wang, Haifeng; Liu, Dahai; Dai, Guilin

    2009-09-01

    The study of air emission in maritime transportation is new, and the recognition of its importance has been rising in the recent decade. The emissions of CO2, SO2, NO2 and particulate matters from maritime transportation have contributed to climate change and environmental degradation. Scientifically, analysts still have controversies regarding how to calculate the emissions and how to choose the baseline and methodologies. Three methods are generally used, namely the ‘bottom up’ approach, the ‘top down’ approach and the STEEM, which produce very different results, leading to various papers with great uncertainties. This, in turn, results in great difficulties to policy makers who attempt to regulate the emissions. A recent technique, the STEEM, is intended to combine the former two methods to reduce their drawbacks. However, the regulations based on its results may increase the costs of shipping companies and cause the competitiveness of the port states and coastal states. Quite a few papers have focused on this area and provided another fresh perspective for the air emission to be incorporated in maritime transportation regulations; these facts deserve more attention. This paper is to review the literature on the debates over air emission calculation, with particular attention given to the STEEM and the refined estimation methods. It also reviews related literature on the economic analysis of maritime transportation emission regulations, and provides an insight into such analysis. At the end of this paper, based on a review and analysis of previous literature, we conclude with the policy indications in the future and work that should be done. As the related regulations in maritime transportation emissions are still at their beginning stage in China, this paper provides specific suggestions on how China should regulate emissions in the maritime transportation sector.

  2. Transport and Environment Database System (TRENDS): Maritime Air Pollutant Emission Modelling

    DEFF Research Database (Denmark)

    Georgakaki, Aliki; Coffey, R. A.; Lock, G.

    2003-01-01

    This paper reports the development of the maritime module within the framework of the TRENDS project. A detailed database has been constructed, which includes all stages of the energy consumption and air pollutant emission calculations. The technical assumptions and factors incorporated in the da...... ¿ short sea or deep-sea shipping. Key Words: Air Pollution, Maritime Transport, Air Pollutant Emissions......This paper reports the development of the maritime module within the framework of the TRENDS project. A detailed database has been constructed, which includes all stages of the energy consumption and air pollutant emission calculations. The technical assumptions and factors incorporated...... encountered since the statistical data collection was not undertaken with a view to this purpose are mentioned. Examples of the results obtained by the database are presented. These include detailed air pollutant emission results per port and vessel type, to aggregate results for different types of movements...

  3. Origin of Cold-Air Outbreaks: Polar Air Mass Formation from a Radiation Perspective

    Science.gov (United States)

    Bliankinshtein, N.; Huang, Y.; Gyakum, J. R.; Atallah, E.

    2017-12-01

    It is well known that arctic processes have significant impacts on mid-latitude weather systems. As a general representation of these processes, one can imagine the polar vortex, which is a large upper-level low-pressure system above the North Pole with cold and dense air masses underneath, and surrounded by a jet stream. This jet stream is essentially a large amplitude Rossby wave propagating eastward. When it makes a cyclonic loop, it encloses a region of the vortex that may extend far to the south causing a cold wave, cold spell or a cold-air outbreak. Cold-air outbreaks event can be associated not only with anomalously low temperatures but also with extreme precipitation and persistent weather regimes occurring at mid-latitude sites, so forecasting of these events is challenging. This study focuses on the formation of the air masses trapped in these regions, from a radiation perspective. We consider both observational and modeling approaches to the phenomenon. A common way to consider cold air mass formation is to implement a single-column radiative-convective equilibrium model and to run it under the conditions of polar night. Thus one can simulate a transition of a warm maritime air mass to a cold continental one as a result of longwave radiative cooling without energy supply in the form of solar radiation. The lack of solar heating is relevant not only for the absolute darkness of polar night, but also when the sun shines just above the horizon, because of a large solar zenith angle and a high albedo. In this study we use reanalysis data to identify the events of cold-air formation over Canada's North and construct a radiative-convective model based on the Rapid Radiative Transfer Model and parameterized convective schemes. We analyze and simulate the evolution of the air masses in a Lagrangian framework and quantify the radiative contribution to these processes.

  4. Transport and Environment Database System (TRENDS): Maritime Air Pollutant Emission Modelling

    DEFF Research Database (Denmark)

    Georgakaki, Aliki; Coffey, Robert; Lock, Grahm

    2005-01-01

    changes from findings reported in Methodologies for Estimating air pollutant Emissions from Transport (MEET). The database operates on statistical data provided by Eurostat, which describe vessel and freight movements from and towards EU 15 major ports. Data are at port to Maritime Coastal Area (MCA......) level, so a bottom-up approach is used. A port to MCA distance database has also been constructed for the purpose of the study. This was the first attempt to use Eurostat maritime statistics for emission modelling; and the problems encountered, since the statistical data collection was not undertaken...... with a view to this purpose, are mentioned. Examples of the results obtained by the database are presented. These include detailed air pollutant emission calculations for bulk carriers entering the port of Helsinki, as an example of the database operation, and aggregate results for different types...

  5. Condensation of atmospheric moisture from tropical maritime air masses as a freshwater resource.

    Science.gov (United States)

    Gerard, R D; Worzel, J L

    1967-09-15

    A method is proposed whereby potable water may be obtained by condensing moisture from the atmosphere in suitable seashore or island areas. Deep, cold, offshore seawater is used as a source of cold and is pumped to condensers set up on shore to intercept the flow of highly humid, tropical, maritime air masses. This air, when cooled, condenses moisture, which is conducted away and stored for use as a water supply. Windmill-driven generators would supply low-cost power for the operation. Side benefits are derived by using the nutritious deep water to support aquiculture in nearby lagoons or to enhance the productivity of the outfall area. Additional benefits are derived from the condenser as an air-conditioning device for nearby residents. The islands of the Caribbean are used as an example of a location in the trade-winds belt where nearly optimum conditions for the operation of this system can be found.

  6. Impact of maritime traffic on polycyclic aromatic hydrocarbons, metals and particulate matter in Venice air.

    Science.gov (United States)

    Gregoris, Elena; Barbaro, Elena; Morabito, Elisa; Toscano, Giuseppa; Donateo, Antonio; Cesari, Daniela; Contini, Daniele; Gambaro, Andrea

    2016-04-01

    Harbours are important hubs for economic growth in both tourism and commercial activities. They are also an environmental burden being a source of atmospheric pollution often localized near cities and industrial complexes. The aim of this study is to quantify the relative contribution of maritime traffic and harbour activities to atmospheric pollutant concentration in the Venice lagoon. The impact of ship traffic was quantified on various pollutants that are not directly included in the current European legislation for shipping emission reduction: (i) gaseous and particulate PAHs; (ii) metals in PM10; and (iii) PM10 and PM2.5. All contributions were correlated with the tonnage of ships during the sampling periods and results were used to evaluate the impact of the European Directive 2005/33/EC on air quality in Venice comparing measurements taken before and after the application of the Directive (year 2010). The outcomes suggest that legislation on ship traffic, which focused on the issue of the emissions of sulphur oxides, could be an efficient method also to reduce the impact of shipping on primary particulate matter concentration; on the other hand, we did not observe a significant reduction in the contribution of ship traffic and harbour activities to particulate PAHs and metals. Graphical abstract Impact of maritime traffic on polycyclic aromatic hydrocarbons, metals and particulate matter and evaluation of the effect of an European Directive on air quality in Venice.

  7. Investigation of the quality of stored red blood cells after simulated air drop in the maritime environment.

    Science.gov (United States)

    Meli, Athinoula; Hancock, Vicky; Doughty, Heidi; Smedley, Steve; Cardigan, Rebecca; Wiltshire, Michael

    2018-02-01

    Maritime medical capability may be compromised by blood resupply. Air-dropped red blood cells (RBCs) is a possible mitigation factor. This study set out to evaluate RBC storage variables after a simulated parachute air drop into the sea, as limited data exist. The air load construction for the air drop of blood was subject to static drop assessment to simulate a worst-case parachute drop scenario. One control and two test Golden Hour shipping containers were each packaged with 10 RBC units. The control box was not dropped; Test Boxes 1 and 2 were further reinforced with waterproof boxes and underwent a simulated air drop on Day 7 or Day 8 postdonation, respectively. One day after the drop and once a week thereafter until Day 43 of storage, RBCs from each box were sampled and tested for full blood counts, hemolysis, adenosine triphosphate, 2,3-diphosphoglycerate, pH, extracellular potassium, glucose, lactate, deformability, and RBC microvesicles. The packaging configuration completed the air drop with no water ingress or physical damage. All units met UK specifications for volume, hemoglobin, and hemolysis. There were no significant differences for any of the variables studied between RBCs in the control box compared to RBCs in Test Boxes 1 and 2 combined over storage. The test proved that the packaging solution and the impact of a maritime air drop as performed in this study, on Day 7 or Day 8 postdonation, did not affect the in vitro quality of RBCs in SAGM over storage for 35 days. © 2017 AABB.

  8. Regional Maritime University Journal

    African Journals Online (AJOL)

    Maritime education and training; Maritime technology; Maritime administration; Maritime environmental and ocean management; Port and shipping administration; Maritime transport and logistics; Maritime policy and practices; Maritime safety and security; Engineering; Information Communication Technology; Oil and gas ...

  9. Maritime Technology

    DEFF Research Database (Denmark)

    Sørensen, Herman

    1997-01-01

    Elementary introduction to the subject "Maritime Technology".The contents include drawings, sketches and references in English without any supplementary text.......Elementary introduction to the subject "Maritime Technology".The contents include drawings, sketches and references in English without any supplementary text....

  10. Maritime Transportation of Illegal Drugs from South America

    Science.gov (United States)

    2017-01-01

    1 Maritime Transportation of Illegal Drugs from South America • Michael P. Atkinson: Operations Research Department, Naval...2 Maritime Transportation of Illegal Drugs from South America Abstract The US invests considerable effort in searching and interdicting drug...Trafficking Organizations (DTOs) employ both maritime and air conveyances and use a variety of vessel types to transport the drugs. Examples of maritime

  11. 14CO2 measurements in maritime air over the Northern Indian Ocean

    International Nuclear Information System (INIS)

    Dutta, K.; Bhushan, R.; Somayajulu, B.L.K.

    2002-01-01

    14 C in the carbon dioxide of air overlying the Northern Indian Ocean was measured during the spring of 1993 to 1995 and 1997 to 1999. Considerable variations of 14 C over this region have been observed during this period, which reflect both regional and interannual variations. The interannual variations of 14 C of the tropospheric CO 2 over this region is found to correlate with the El Nino/Southern Oscillation (ENSO) events, with positive excursions of 14 C before the onset of warm phase of ENSO. (author)

  12. Potential of polarization/Raman lidar to separate fine dust, coarse dust, maritime, and anthropogenic aerosol profiles

    Science.gov (United States)

    Mamouri, Rodanthi-Elisavet; Ansmann, Albert

    2017-09-01

    We applied the recently introduced polarization lidar-photometer networking (POLIPHON) technique for the first time to triple-wavelength polarization lidar measurements at 355, 532, and 1064 nm. The lidar observations were performed at Barbados during the Saharan Aerosol Long-Range Transport and Aerosol-Cloud-Interaction Experiment (SALTRACE) in the summer of 2014. The POLIPHON method comprises the traditional lidar technique to separate mineral dust and non-dust backscatter contributions and the new, extended approach to separate even the fine and coarse dust backscatter fractions. We show that the traditional and the advanced method are compatible and lead to a consistent set of dust and non-dust profiles at simplified, less complex aerosol layering and mixing conditions as is the case over the remote tropical Atlantic. To derive dust mass concentration profiles from the lidar observations, trustworthy extinction-to-volume conversion factors for fine, coarse, and total dust are needed and obtained from an updated, extended Aerosol Robotic Network sun photometer data analysis of the correlation between the fine, coarse and total dust volume concentration and the respective fine, coarse, and total dust extinction coefficient for all three laser wavelengths. Conversion factors (total volume to extinction) for pure marine aerosol conditions and continental anthropogenic aerosol situations are presented in addition. As a new feature of the POLIPHON data analysis, the Raman lidar method for particle extinction profiling is used to identify the aerosol type (marine or anthropogenic) of the non-dust aerosol fraction. The full POLIPHON methodology was successfully applied to a SALTRACE case and the results are discussed. We conclude that the 532 nm polarization lidar technique has many advantages in comparison to 355 and 1064 nm polarization lidar approaches and leads to the most robust and accurate POLIPHON products.

  13. Circular polarization of radio emission from air showers in thunderstorm conditions

    NARCIS (Netherlands)

    Trinh, T. N. G.; Scholten, O.; Bonardi, A.; Buitink, S.; Corstanje, A.; Ebert, U.; Enriquez, J. E.; Falcke, H.; Hörandel, J. R.; Mitra, P.; Mulrey, K.; Nelles, A.; Thoudam, S.; Rachen, J. P.; Rossetto, L.; Rutjes, C.; Schellart, P.; ter Veen, S.; Winchen, T.

    2017-01-01

    We present measured radio emission from cosmic-ray-induced air showers under thunderstorm conditions. We observe for these events large differences in intensity, linear polarization and circular polarization from the events measured under fair-weather conditions. This can be explained by the effects

  14. Non-radially polarized THz pulse emitted from femtosecond laser filament in air.

    Science.gov (United States)

    Zhang, Y; Chen, Y; Marceau, C; Liu, W; Sun, Z-D; Xu, S; Théberge, F; Châteauneuf, M; Dubois, J; Chin, S L

    2008-09-29

    Femtosecond laser filament could produce THz wave in forward direction. In our experiment, THz pulse emitted from a femtosecond laser filament has been investigated. It was found that the polarization of the studied THz pulse mainly appears as elliptical. This observation supplements the previous conclusion obtained by C. D'Amico et al. that THz wave emitted by a filament is radially polarized. The mechanism of generating elliptically polarized THz wave has been interpreted by either four-wave optical rectification or second order optical rectification inside the filament zone where centro-symmetry of the air is broken by the femtosecond laser pulse.

  15. 75 FR 5241 - Maritime Communications

    Science.gov (United States)

    2010-02-02

    ... that its rules governing the Maritime Radio Services continue to promote maritime safety, maximize effective and efficient use of the spectrum available for maritime communications, accommodate technological...] Maritime Communications AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: In this...

  16. Maritime Security: Malaysia’s Persistent Problem

    Science.gov (United States)

    2012-01-01

    Malaysian Maritime Zone is safe and peaceful to maritime communities. To minimize loss of lives and properties at sea based on a set standard. To...navies, and air forces of the littoral states.”20 In his keynote address at the 2011 Shangri-La Dialogue, Prime Minister Dato ’ Sri Najib Tun Razak...Monitor, Vol. 4 No. 3, 2006. Razak, Dato ’ Sri Najib Tun, Prime Minister Malaysia. Keynote Address. Shangri-La Dialogue. Singapore, June 3, 2011

  17. Ventilation and air conditioning systems in maritime productions units; Panorama dos sistemas de VAC em unidades maritimas de producao

    Energy Technology Data Exchange (ETDEWEB)

    Guedes, Fernando Pedrosa; Sztajnbok, Ernani Luis [PETROBRAS, Rio de Janeiro, RJ (Brazil); Padua, Carlos Eduardo Dantas de; Passos, Alfredo Silveira [DUOVAC Engenharia Ltda. (Brazil)

    2004-07-01

    In an Offshore Stationary Production Unit (SPU), the adequate project of the Ventilation and Air Conditioning (VAC) System is not only a thermal comfort requirement but part of the essential safety services of the installation and complement for area classification requirements associated with electrical equipment. The VAC installations are sometimes the object of complaints by onboard team. Problems such as unsatisfactory system performance, high noise levels in the accommodation quarters, offices and other areas and the discomfort caused by unbalanced ventilation and air conditioning systems, are some of the most frequent complaints. Air Conditioning systems are classified as Direct and Indirect Expansion. Decentralized systems with Indirect Expansion has been adopted in PETROBRAS projects. This conception is not used in VAC Systems for platforms installed in North Sea, where the use of Centralized Systems with Direct Expansion are more common. The objective of this work is to compare the VAC conception projects, analyzing their advantages and disadvantages . The evaluation of VAC System in PETROBRAS project, and their steps in SPU development, is also scope of this paper. (author)

  18. Polarization properties of aerosol particles over western Japan: classification, seasonal variation, and implications for air quality

    Directory of Open Access Journals (Sweden)

    X. Pan

    2016-08-01

    Full Text Available Ground-based observation of the polarization properties of aerosol particles using a polarization optical particle counter (POPC was made from 27 October 2013, to 31 December 2015, at a suburban site in the Kyushu area of Japan. We found that the depolarization ratio (DR, the fraction of s-polarized signal in the total backward light scattering signal of aerosol particles showed prominent seasonal variability, with peaks in spring (0.21–0.23 and winter (0.19–0.23, and a minimum value (0.09–0.14 in summer. The aerosol compositions in both fine mode (aerodynamic diameter of particle, Dp  <  2.5 µm and coarse mode (2.5 µm  <  Dp  <  10 µm, and the size-dependent polarization characteristics were analyzed for long-range transport dust particles, sea salt, and anthropogenic pollution-dominant aerosols. The DR value increased with increasing particle size, and DR  =  0.1 was a reliable threshold value to identify the sphericity of supermicron (Dp  >  1 µm particles. Occurrence of substandard air quality days in Kyushu was closely related with mixed type (coexistence of anthropogenic pollutants and dust particles in the atmosphere, especially in winter and spring, indicating that dust events in the Asian continent played a key role in the cross-boundary transport of continental pollution. Backward trajectory analysis demonstrated that air masses originating from the western Pacific contained large amounts of spherical particles due to the influence of sea salt, especially in summer; however, for air masses from the Asian continent, the dependence of number fraction of spherical particles on air relative humidity was insignificant, indicating the predominance of less-hygroscopic substances (e.g., mineral dust, although the mass concentrations of anthropogenic pollutants were elevated.

  19. Green Maritime Logistics

    DEFF Research Database (Denmark)

    Psaraftis, Harilaos N.

    2016-01-01

    By green maritime logistics we mean achieving an acceptable environmental performance of the maritime transport logistical supply chain while at the same time respecting traditional economic criteria. In this paper the environmental focus is on maritime emissions. Achieving such goal may involve...... several trade-offs, and win-win solutions are typically sought. However, finding these solutions may be more difficult than may appear at first glance. The purpose of this paper is to provide a concise overview of the challenges of green maritime logistics and present some examples, both for greenhouse...

  20. Maritime Laser Scanning as the Source for Spatial Data

    Directory of Open Access Journals (Sweden)

    Szulwic Jakub

    2015-12-01

    Full Text Available The rapid development of scanning technology, especially mobile scanning, gives the possibility to collect spatial data coming from maritime measurement platforms and autonomous manned or unmanned vehicles. Presented solution is derived from the mobile scanning. However we should keep in mind that the specificity of laser scanning at sea and processing collected data should be in the form acceptable in Geographical Information Systems, especially typical for the maritime needs. At the same time we should be aware that data coming from maritime mobile scanning constitutes a new approach to the describing of maritime environment and brings a new perspective that is completely different than air and terrestrial scanning.

  1. Distance Discrimination Thresholds During Flight Simulation in a Maritime Environment

    Science.gov (United States)

    2011-11-01

    UNCLASSIFIED Distance Discrimination Thresholds During Flight Simulation in a Maritime Environment Jessica Parker Air Operations...Distance Discrimination Thresholds During Flight Simulation in a Maritime Environment Executive Summary The Aeronautical Design Standard...position to be perceived. This minimum distance was defined as the distance discrimination threshold. For both high and low sea states, the thresholds

  2. Regional Maritime University Journal: Editorial Policies

    African Journals Online (AJOL)

    Maritime education and training;; Maritime technology (e.g. engineering, information technology);; Maritime Administration;; Maritime environmental and ocean management;; Port and shipping administration;; Maritime transport and logistics, as well as. Technological, organizational, sociological, economic etc. issues ...

  3. Abbreviations in Maritime English

    Science.gov (United States)

    Yang, Zhirong

    2011-01-01

    Aiming at the phenomena that more and more abbreviations occur in maritime English correspondences, the composing laws of the abbreviations in maritime English correspondence are analyzed, and the correct methods to answer the abbreviations are pointed out, and the translation method of abbreviations are summarized in this article, and the…

  4. Terahertz polarization converter based on all-dielectric high birefringence metamaterial with elliptical air holes

    KAUST Repository

    Zi, Jianchen

    2018-02-15

    Metamaterials have been widely applied in the polarization conversion of terahertz (THz) waves. However, common plasmonic metamaterials usually work as reflective devices and have low transmissions. All-dielectric metamaterials can overcome these shortcomings. An all-dielectric metamaterial based on silicon with elliptical air holes is reported to achieve high artificial birefringence at THz frequencies. Simulations show that with appropriate structural parameters the birefringence of the dielectric metamaterial can remain flat and is above 0.7 within a broad band. Moreover, the metamaterial can be designed as a broadband quarter wave plate. A sample metamaterial was fabricated and tested to prove the validity of the simulations, and the sample could work as a quarter wave plate at 1.76 THz. The all-dielectric metamaterial that we proposed is of great significance for high performance THz polarization converters.

  5. Circularly Polarized Antenna Array Fed by Air-Bridge Free CPW-Slotline Network

    Directory of Open Access Journals (Sweden)

    Yilin Liu

    2017-01-01

    Full Text Available A novel design of 1×2 and 2×2 circularly polarized (CP microstrip patch antenna arrays is presented in this paper. The two CP antenna arrays are fed by sequentially rotated coplanar waveguide (CPW to slotline networks and are processed on 1 mm thick single-layer FR4 substrates. Both of the two arrays are low-profile and lightweight. An air-bridge free CPW-slotline power splitter is appropriately designed to form the feeding networks and realize the two CP antenna arrays. The mechanism of circular polarization in this design is explained. The simulated and measured impedance bandwidths as well as the 3 dB axial ratio bandwidths and the radiation patterns of the two proposed antenna arrays are presented. This proposed design can be easily extended to form a larger plane array with good performance owing to its simple structure.

  6. 75 FR 10692 - Maritime Communications

    Science.gov (United States)

    2010-03-09

    ... maritime safety, maximize effective and efficient use of the spectrum available for maritime communications...] Maritime Communications ACTION: Final rule; correction. SUMMARY: The Federal Communications Commission published in the Federal Register of February 2, 2010 (75 FR 5241), a document in the Maritime Radio...

  7. EUROPEAN MARITIME TRANSPORT POLICY

    Directory of Open Access Journals (Sweden)

    Jerzy Kujawa

    2014-03-01

    Full Text Available The article describes the common EU policy on maritime transport, which comprises almost 80% of the volume of external trade of the Union and about 40% of internal transport needs. The first part of the paper presents the origins of the common maritime transport policy and the difficulties encountered during its initial formation. Subsequently, the evolution of the concepts of the policy and its current shape is discussed. The final, substantial part of the article describes the main aims and directions of the EU maritime transport policy and includes an evaluation of the effects of the policy.

  8. The Maritime Engineering Education

    DEFF Research Database (Denmark)

    Andersen, Ingrid Marie Vincent; Nielsen, Ulrik Dam; Lützen, Marie

    2012-01-01

    This article describes the outcome of a survey initiated by the Danish Maritime Fund (DMF). The survey resulted in a report that describes the engineering competencies requested by the Danish maritime industry. This is of interest since the desired competencies have changed in the past one to two...... decades, where Denmark no longer has a considerable ship-building industry. Furthermore, the DMF initiated report concludes that the demand for maritime engineers in the industry is larger than the output. The report sets forth a series of recommendations to the industry as well as the universities...... to enable meeting the demand for maritime engineers in Denmark. The recommendations are outlined together with the work commenced at the Technical University of Denmark (DTU) and the University of Southern Denmark (SDU) to follow up on the recommendations in the report....

  9. Maritime trade & transportation 1999

    Science.gov (United States)

    1999-01-01

    The marine transportation system contributes to U.S. economic growth, enhances global competitiveness, and supports national security objectives. This report is a cooperative effort of the Bureau of Transportation Statistics (BTS), the Maritime Admin...

  10. Maritime Threat Response

    Science.gov (United States)

    2006-06-01

    Effective TDSI Temasek Defense Science Institute TEU Twenty foot Equivalent Unit ThI Thallium Iodide TNT MIO Tactical Network Topology Maritime...terminals, a commercial fishing harbor and fish processing terminal, a ship repair yard and dry dock, lay berths for Maritime Administration vessels...with an innocent neutron source or a fission.155 Sodium Iodide (NaI). In a scintillation detector, sodium iodide crystals are doped with thallium

  11. Technical Note: An investigation of polarity effects for wide-angle free-air chambers

    International Nuclear Information System (INIS)

    Shen, H.; Ross, C. K.; Culberson, W. S.

    2016-01-01

    Purpose: Wide-angle free-air chambers (WAFACs) are used as primary standard measurement devices for establishing the air-kerma strength of low-energy, low-dose rate brachytherapy seeds. The National Research Council of Canada (NRC) is commissioning a primary standard wide-angle free-air chamber (NRC WAFAC) to serve the calibration needs of Canadian clients. The University of Wisconsin has developed a similar variable-aperture free-air chamber (UW VAFAC) to be used as a research tool. As part of the NRC commissioning, measurements were carried out for both polarities of the applied bias voltage and the resulting effects were observed to be very large. Similar effects were identified with the UW VAFAC. The authors describe the measurements carried out to determine the underlying causes of the polarity effect and the approach used to eliminate it. Methods: The NRC WAFAC is based on the WAFAC design developed at the National Institute of Standards and Technology in the USA. Charge measurements for 125 I and 241 Am sources were carried out for both negative and positive polarities on the NRC WAFAC and UW VAFAC. Two aperture sizes were also investigated with the UW VAFAC. In addition, measurements on the NRC WAFAC were carried out with a small bias between the collecting electrode and the shield foil at the downstream end of the chamber. To mitigate all of the polarity effects, the downstream surface of the collecting electrode was covered with a thin layer of graphite on both the NRC and UW chambers. Results: Both chamber designs showed a difference of more than 30 % between the charge collected with positive and negative bias voltages for the smallest electrode separation. It was shown for the NRC WAFAC that charge could be collected in the small gap downstream of the collecting volume by applying a voltage between the shield foil and the collecting electrode, even though an insulating foil (Mylar or polyimide film) separated the conducting surface from the small gap

  12. Chemical signals of past climate and environment from polar ice cores and firn air.

    Science.gov (United States)

    Wolff, Eric W

    2012-10-07

    Chemical and isotopic records obtained from polar ice cores have provided some of the most iconic datasets in Earth system science. Here, I discuss how the different records are formed in the ice sheets, emphasising in particular the contrast between chemistry held in the snow/ice phase, and that which is trapped in air bubbles. Air diffusing slowly through the upper firn layers of the ice sheet can also be sampled in large volumes to give more recent historical information on atmospheric composition. The chemical and geophysical issues that have to be solved to interpret ice core data in terms of atmospheric composition and emission changes are also highlighted. Ice cores and firn air have provided particularly strong evidence about recent changes (last few decades to centuries), including otherwise inaccessible data on increases in compounds that are active as greenhouse gases or as agents of stratospheric depletion. On longer timescales (up to 800,000 years in Antarctica), ice cores reveal major changes in biogeochemical cycling, which acted as feedbacks on the very major changes in climate between glacial and interglacial periods.

  13. Maritime security report. November 2000 [Commercial maritime drug smuggling

    Science.gov (United States)

    2000-11-01

    Port and security programs being implemented in Colombia's port facilities, maritime jurisdictions, and the marine intermodal shipping cycle are producing successful results against commercial maritime drug smuggling. This security reports examines t...

  14. Ice Surface Temperature Variability in the Polar Regions and the Relationships to 2 Meter Air Temperatures

    Science.gov (United States)

    Hoyer, J.; Madsen, K. S.; Englyst, P. N.

    2017-12-01

    Determining the surface and near surface air temperature from models or observations in the Polar Regions is challenging due to the extreme conditions and the lack of in situ observations. The errors in near surface temperature products are typically larger than for other regions of the world, and the potential for using Earth Observations is large. As part of the EU project, EUSTACE, we have developed empirical models for the relationship between the satellite observed skin ice temperatures and 2m air temperatures. We use the Arctic and Antarctic Sea and sea ice Surface Temperatures from thermal Infrared satellite sensors (AASTI) reanalysis to estimate daily surface air temperature over land ice and sea ice for the Arctic and the Antarctic. Large efforts have been put into collecting and quality controlling in situ observations from various data portals and research projects. The reconstruction is independent of numerical weather prediction models and thus provides an important alternative to modelled air temperature estimates. The new surface air temperature data record has been validated against more than 58.000 independent in situ measurements for the four surface types: Arctic sea ice, Greenland ice sheet, Antarctic sea ice and Antarctic ice sheet. The average correlations are 92-97% and average root mean square errors are 3.1-3.6°C for the four surface types. The root mean square error includes the uncertainty of the in-situ measurement, which ranges from 0.5 to 2°C. A comparison with ERA-Interim shows a consistently better performance of the satellite based air temperatures than the ERA-Interim for the Greenland ice sheet, when compared against observations not used in any of the two estimates. This is encouraging and demonstrates the values of these products. In addition, the procedure presented here works on satellite observations that are available in near real time and this opens up for a near real time estimation of the surface air temperature over

  15. MARITIME DIPLOMACY SEBAGAI STRATEGI PEMBANGUNAN KEAMANAN MARITIM INDONESIA

    Directory of Open Access Journals (Sweden)

    Muhammad Harry Riana Nugraha

    2016-10-01

    Full Text Available Indonesia’s geographical conditions that sourrounded by ocean should be considered as an added value for maritime diplomacy for the sake of the development of Indonesia. Therefore, in terms of geoculture, Maritime Diplomacy should be taken into account as one of the main pillars to build maritime security in Indonesia including the use of maritime diplomacy in response to security threats, so that the defense capabilities will be gradually improved. This article will examine the importance of organizing Indonesia’s maritime sector regarding the vision of the Global Maritime Fulcrum (GMF in order to see the strengths and weaknesses of Indonesian Navy’s capabilities as an instrument of Indonesia’s Maritime diplomacy to support the development of maritime security. This article also argued that the most important in Indonesia’s Maritime Diplomacy is that Indonesia is capable to guarantee maritime security for all stakeholders regionally and globally. Indonesia needs to improve management and expand promotion for all trading ports available, namely Jakarta and Surabaya as well as other ports as a hub of global maritime prospects. By enhancing maritime safety and security, various international cooperation will be maintained and pro table for Indonesia.

  16. The Maritime Dynamic Targeting Gap -- An Analysis of Current Joint Targeting Processes in the Maritime Domain

    Science.gov (United States)

    2012-05-04

    http://www.alsa.mil/library/ alsb / ALSB %202012-1.pdf. 22...Provide Tactical C2 of Joint Assets in the Maritime Domain.” Air Land and Sea Bulletin 2012-1 (January 2012), http://www.alsa.mil/library/ alsb / ALSB

  17. Maritime Services to Support Polar Resource Development.

    Science.gov (United States)

    1981-06-01

    Superstructure Width Depth Ice Type Ice Thickness Ice Icing Currents Unimak Pass 10 miles 64 to g I M No ice - Very severe-early winter through Tidal Current...Sea through the passes (principally Unimak , Amukta, and Amchitka) of the Aleutian Islands, the wave refracts markedly to traverse the Sea from south...conditions should prevail until the vessel is near Point Barrow. Upon clearing the Unimak Pass on a northnorthwesterly heading, the Master of "MANHATTAN II

  18. Orchestrating Transnational Environmental Governance in Maritime Shipping

    DEFF Research Database (Denmark)

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

    2015-01-01

    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—the Interna......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...... 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...

  19. Power in the Maritimes

    International Nuclear Information System (INIS)

    Anon.

    1977-01-01

    This article highlights generation and transmission developments in Atlantic Canada, up-dates current projects and future planning, and features authoritative statements by utility executives about the energy situation in the Maritime provinces. Some details of the Point Lepreau 630 MW CANDU reactor are given. (N.D.H.)

  20. The Maritime Reaction Squadron

    African Journals Online (AJOL)

    a_mang

    ties as well as creating and gaining influence within a theatre of operation.82. Since its ..... with the apparent intent or capability to use force in the furtherance of that ..... Channel. Concurrently, the Maritime Rescue and Coordination Centre in. Tanzania issued a safety warning regarding the Dandelion, a South African-.

  1. Digitization in Maritime Industry

    DEFF Research Database (Denmark)

    Constantiou, Ioanna; Shollo, Arisa; Kreiner, Kristian

    2017-01-01

    Digitization in the maritime industry is expected to transform businesses. The recently introduced mobile technologies in inter-organizational processes is an example of digitization in an industry which moves very slowly towards digital transformation. We focus on the influence of mobile...

  2. Green Maritime Logistics

    DEFF Research Database (Denmark)

    Psaraftis, Harilaos N.

    2014-01-01

    Typical problems in maritime logistics include, among others, optimal ship speed, ship routing and scheduling, fleet deployment, fleet size and mix, weather routing, intermodal network design, modal split, transshipment, queuing at ports, terminal management, berth allocation, and total supply...... chain management. The traditional analysis of these problems has been in terms of cost- benefit and other optimization criteria from the point of view of the logistics provider, carrier, shipper, or other end-user. Such traditional analysis by and large either ignores environmental issues, or considers...... in the goal of greening the maritime supply chain and takes stock at models that can be used to evaluate these trade-offs. The talk is based on recent research of the author and his colleagues....

  3. Networking the Global Maritime Partnership

    Science.gov (United States)

    2016-04-13

    NETWORKING THE GLOBAL MARITIME PARTNERSHIP ix years after Admiral Michael Mullen, then Chief of Naval Operations, pro- posed his “thousand-ship navy...concept at the Seventeenth International Seapower Symposium at the U.S. Naval War College in 2005, his notion of a Global Maritime Partnership is...maritime partnerships have become the sine qua non for nations working together as global forces for good in support of ever- increasing levels of security

  4. Occupational asthma in maritime environments

    DEFF Research Database (Denmark)

    Lucas, David; Loddé, Brice; Jepsen, Jørgen Riis

    2016-01-01

    In 2006 we published our first review based on the available literature on occupational asthma in maritime environments in the “International Maritime Health” journal. Since then, we have obtained a great deal of new knowledge on asthma in seafood workers and fishermen and on the impact...... of exposures from sulphites preservatives, container fumigants etc. in maritime workers. This review aims to provide an update of the current knowledge base about occupational asthma in a maritime context and to provide recommendations regarding medical surveillance of workers at risk....

  5. Identifying Maritime Logistics Competences for Sustaining Maritime Economies

    DEFF Research Database (Denmark)

    Gammelgaard, Britta; Kinra, Aseem; Sornn-Friese, Henrik

    This paper conducts a comparative assessment of the Danish maritime cluster, measured against a range of international known and respected maritime clusters like Virginia, London, the Netherlands, Singapore, Shanghai, Norway and Hong Kong. The aim is also to bring out the characteristics of the D...

  6. Center for Maritime Safety and Health Studies

    Data.gov (United States)

    Federal Laboratory Consortium — Established in November 2015, the Center for Maritime Safety and Health Studies (CMSHS) promotes safety and health for all maritime workers, including those employed...

  7. INTERNET COMMERCE IN MARITIME INDUSTRY

    Directory of Open Access Journals (Sweden)

    Monika Szyda

    2014-06-01

    Full Text Available Internet commerce in Poland is growing rapidly, entering into new industries and of-fering a wider and wider range of goods and services. For electronic commerce is open maritime industry, as evidenced by the maritime e-commerce. This aspect of e-commerce is not a popular topic of publications and research. In this article the author presents the genesis of electronic commerce in the maritime industry taking into account the particular business relationship business-to-business (B2B. Then attempt to characterize maritime e-commerce in business-to-customer (B2C relationship. The purpose of this article is to identify the attributes of internet commerce in the maritime industry, having particular re-gard to Polish online market, especially retail.

  8. Save Maritime Systems Testbed

    Directory of Open Access Journals (Sweden)

    Bolles André

    2014-06-01

    Full Text Available ‘Safe voyage from berth to berth’ — this is the goal of all e-navigation strains, driven by new technologies, new infrastructures and new organizational structures on bridge, on shore as well as in the cloud. To facilitate these efforts suitable engineering and safety/risk assessment methods have to be applied. Understanding maritime transportation as a sociotechnical system allows system engineering methods to be applied. Formal and simulation based verification and validation of e-navigation technologies are important methods to obtain system safety and reliability. The modelling and simulation toolset HAGGIS provides methods for system specification and formal risk analysis. It provides a modelling framework for processes, fault trees and generic hazard specification and a physical world and maritime traffic simulation system. HAGGIS is accompanied by the physical test bed LABSKAUS which implements a reference port and waterway. Additionally, it contains an experimental Vessel Traffic Services (VTS implementation and a mobile integrated bridge enabling in situ experiments for technology evaluation, testing, ground research and demonstration. This paper describes an integrated seamless approach for developing new e-navigation technologies starting with virtual simulation based assessment and ending in physical real world demonstrations.

  9. Maritime Fuel Cell Generator Project.

    Energy Technology Data Exchange (ETDEWEB)

    Pratt, Joseph William [Sandia National Lab. (SNL-CA), Livermore, CA (United States)

    2017-07-01

    Fuel costs and emissions in maritime ports are an opportunity for transportation energy efficiency improvement and emissions reduction efforts. Ocean-going vessels, harbor craft, and cargo handling equipment are still major contributors to air pollution in and around ports. Diesel engine costs continually increase as tighter criteria pollutant regulations come into effect and will continue to do so with expected introduction of carbon emission regulations. Diesel fuel costs will also continue to rise as requirements for cleaner fuels are imposed. Both aspects will increase the cost of diesel-based power generation on the vessel and on shore. Although fuel cells have been used in many successful applications, they have not been technically or commercially validated in the port environment. One opportunity to do so was identified in Honolulu Harbor at the Young Brothers Ltd. wharf. At this facility, barges sail regularly to and from neighbor islands and containerized diesel generators provide power for the reefers while on the dock and on the barge during transport, nearly always at part load. Due to inherent efficiency characteristics of fuel cells and diesel generators, switching to a hydrogen fuel cell power generator was found to have potential emissions and cost savings.

  10. The Maritime Infrastructure Recovery Plan for the National Strategy for Maritime Security

    National Research Council Canada - National Science Library

    2006-01-01

    ... to the jurisdiction of the United States. The MIRP, the Maritime Commerce Security Plan, and the Maritime Transportation System Security Plan were developed in close coordination under the National Strategy for Maritime Security (NSMS...

  11. MARITIME VIOLENCE : IMPLICATIONS TO MALAYSIA

    Directory of Open Access Journals (Sweden)

    Nurulizwan Ahmad Zubir

    2014-04-01

    Full Text Available Abstract Maritime Piracy has been a serious threat to the international community especially in the SoutheastAsia region. This threat has caused tremendous implications towards the world economy, environment,political stability of the nations involved because 45% of the shipping company passes through theSoutheast Asia. The worrying fact is that these attacks were committed by terrorists as well as traditionalmaritime pirates. This paper examines on the implications of maritime crime in Malaysia and discusseswhether the definition of piracy under the International Law could be applied to these attacks. Thispaper concludes that cooperation between the region’s states and the enhancement of a good securitysystem of one state are needed to combat maritime violence. Thus it is imperative that the internationallaw need to be changed in order to enhance the meaning of piracy and also to include sea terrorism. Key words: piracy, maritime, terrorist

  12. Networking the Global Maritime Partnership

    National Research Council Canada - National Science Library

    Galdorisi, George; Hszieh, Stephanie; McKearney, Terry

    2008-01-01

    The modern-day notion of a "Global Maritime Partnership," first introduced by then-CNO Admiral Michael Mullen at the 2005 International Seapower Symposium as "The 1000-Ship Navy," and later enshrined in the new U.S...

  13. Subsidence, Mixing and Denitrification of Polar Vortex Air Measured During Polaris

    Science.gov (United States)

    Rex, M.; Salawitch, R.; Toon, G.; Sen, B.; Margitan, J.; Osterman, G.; Blavier, J.; Gao, R.; Del Negro, L.; Donnelly, S.; hide

    1998-01-01

    We use the correlation between CH(sub 4) and N(sub 2)O as measured during the POLARIS campaign in spring 1997 to estimate the degree of mixing between descended air masses from the vortex and air masses from mid-latitudes.

  14. Current Issues in Maritime Health

    DEFF Research Database (Denmark)

    Wagtmann, Maria Anne

    2008-01-01

     In the early part of 2008, Maria Anne Wagtmann had the opportunity to interview the former president of the International Maritime Health Association, Dr. Tim Carter, in London about a number of current maritime health issues. In this interview, Dr. Tim Carter, who is cur­rently employed as the ...... as the Chief Medical Advisor for the British government's Department for Transport, gives his personal - and thus non-official - opinions on these issues....

  15. Maritime Violence : Implications to Malaysia

    OpenAIRE

    Zubir, Nurulizwan Ahmad

    2012-01-01

    Abstract Maritime Piracy has been a serious threat to the international community especially in the SoutheastAsia region. This threat has caused tremendous implications towards the world economy, environment,political stability of the nations involved because 45% of the shipping company passes through theSoutheast Asia. The worrying fact is that these attacks were committed by terrorists as well as traditionalmaritime pirates. This paper examines on the implications of maritime crime in M...

  16. Maritime Work and Communication

    Directory of Open Access Journals (Sweden)

    Peter Andersen

    2001-05-01

    Full Text Available This paper presents findings from the project "Elastic Systems" under the Danish Center for Human Machine Interaction. The project aims at developing methods for analyzing dynamic maritime work processes and for designing flexible instrument interfaces that will support changing work environments. Here I only address the former issue, the design issues being published elsewhere, e.g. in Andersen(1999 and Andersen & May (2001. More data can be found in Andersen(2000. The purpose of the present paper is twofold: (1 to present characteristics of maritime work and communication, and (2 to suggest a conceptual framework that covers communicative as well as non-communicative acts. The latter purpose is motivated in two ways. Theoretical motivation: we know that language is self-referential, so that it can speak of non-linguistic entities like ships and waves as well as its own properties, such as the correct wording or style. The easiest way to accomplish this is for language to treat both domains in a similar way. The other motivation is more practical: it is a fact that communication and physical actions are interwoven in maritime work, and a theory that builds on a sharp distinction between these two kinds of behaviors will miss this basic characteristic. The data is from a voyage aboard Sally Maersk from Algeciras to Goteborg and back to Rotterdam. We recorded 60 hours of high quality video, and the paper builds upon a 16 hours trip from Felixstowe to Rotterdam, supplemented by data from simulated voyages in the simulator at the Danish Maritime Institute. The conceptual framework is based on Lind 1994 and Lind 2000 and distinguishes between the following types of action types: (1 Prevent(suppress, avoid: if I hadn't done it, then an undesirable state would have developed. Prevent drifting by using auxiliary rudder. (2 Maintain: if I hadn't done it, then a desirable state would have disappeared. Maintain course. (3 Help: a positive state would have

  17. Polarized radio emission and radio wavefront shape of extensive air showers

    NARCIS (Netherlands)

    Corstanje, A.; Buitink, S.; Enriquez, J. E.; Falcke, H.; Hörandel, J. R.; Nelles, A.; Rachen, J. P.; Rossetto, L.; Schellart, P.; Scholten, O.; Ter Veen, S.; Thoudam, S.; Trinh, T. N G

    2015-01-01

    The LOFAR radio telescope located in the north of the Netherlands offers a high density of omnidirectional radio antennas. The LOFAR key science project Cosmic Rays is therefore well suited for detailed studies of the radio signal from air showers, and has been measuring since mid-2011 at primary

  18. Developing a Model on Improving Maritime English Training for Maritime Transportation Safety

    Science.gov (United States)

    Yercan, Funda; Fricke, Donna; Stone, Laurie

    2005-01-01

    Maritime services form an integral part of what regulatory agencies requires for the safe navigation and operation of vessels. Therefore, the maritime industry's compliance with governmental regulations and international protocols has been essential for maritime safety management. As a basis to this aspect, the preparation of maritime students as…

  19. Neotectonics in the maritime provinces

    International Nuclear Information System (INIS)

    Martin, G.L.

    1988-03-01

    Seismic risk assessment in the Maritime Provinces requires input from not just historical, but also geological sources. A detailed search through published and unpublished geological literature reveals many examples - some probable, some possible -of neotectonic movement in the area. Examples range in tectonic significance from those that reflect exaggerated local imbalance to those that signify deep-seated stress. Evidence for neotectonism in the Maritimes is multidisciplined. It includes deformation in bedrock and quaternary deposits, and regional warping. Recent movement also is indicated by changes in relative sea level, in situ stress fields and geodetic fluctuations. Finally, and most unequivocally, neotectonism in the Maritime Provinces is manifested as the seismic events that have sporadically affected the area throughout its recent geological history, and continue up to the present day. 288 refs

  20. Maritime wideband communication networks video transmission scheduling

    CERN Document Server

    Yang, Tingting

    2014-01-01

    This Springer Brief covers emerging maritime wideband communication networks and how they facilitate applications such as maritime distress, urgency, safety and general communications. It provides valuable insight on the data transmission scheduling and protocol design for the maritime wideband network. This brief begins with an introduction to maritime wideband communication networks including the architecture, framework, operations and a comprehensive survey on current developments. The second part of the brief presents the resource allocation and scheduling for video packet transmission wit

  1. Maritime Security in West Africa

    DEFF Research Database (Denmark)

    Jacobsen, Katja; Nordby, Johannes Riber

    The problem of maritime insecurity in the Gulf of Guinea is not a new phenomenon, but a contemporary form of piracy in the Gulf of Guinea has arguably developed over the past 25 years to be more organized and violent. Besides the issue of how the phenomenon of piracy in the Gulf of Guinea has...

  2. Maritime archaeological studies in India

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Vora, K.H.

    India with more than 7000 km long coastline and about 5000 years old maritime history is dotted with several ancient ports. Marine archaeological research during last two and half decades has revealed a number of sites along the Indian coast, which...

  3. Maritime Policy and the Seafaring Labor Market

    DEFF Research Database (Denmark)

    Lobrigo, Enrico; Pawlik, Thomas

    2015-01-01

    The reports highlighting the foreseen lack of merchant marine officers for the expanding world’s fleet calls for a review in evaluating the impact of maritime policy in the seafaring labor market. This paper aims to clarify the particular characteristics of the seafaring labor market and how it can...... be shaped by specific maritime labor policies. The seafaring labor market in the Philippines, Poland, Germany, and Brazil as well as the general maritime labor policies in these countries is discussed. The focus on these countries leads to a comparative observation of maritime labor as a factor...... of production in an exporting market, in an importing market, and in a closed market, respectively, as shaped by various relevant maritime policies. Since a global policy that can regulate the maritime labor market does not exist, the trend on maritime labor supply is dynamic on a per country basis wherein crew...

  4. A microfluidic device to apply shear stresses to polarizing ciliated airway epithelium using air flow.

    Science.gov (United States)

    Trieu, Dennis; Waddell, Thomas K; McGuigan, Alison P

    2014-11-01

    Organization of airway epithelium determines ciliary beat direction and coordination for proper mucociliary clearance. Fluidic shear stresses have the potential to influence ciliary organization. Here, an in vitro fluidic flow system was developed for inducing long-term airflow shear stresses on airway epithelium with a view to influencing epithelial organization. Our system consists of a fluidic device for cell culture, integrated into a humidified airflow circuit. The fluidic device has a modular design and is made from a combination of polystyrene and adhesive components incorporated into a 6-well filter membrane insert. We demonstrate the system operates within physiologically relevant shear and pressure ranges and estimate the shear stress exerted on the epithelial cell layer as a result of air flow using a computational model. For both the bronchial epithelial cell line BEAS2B and primary human tracheal airway epithelial cells, we demonstrate that cells remain viable within the device when exposed to airflow for 24 h and that normal differentiation and cilia formation occurs. Furthermore, we demonstrate the utility of our device for exploring the impact of exposing cells to airflow: our tool enables quantification of cytoskeletal organization, and is compatible with in situ bead assays to assess the orientation of cilia beating.

  5. Air

    Science.gov (United States)

    ... gov/ Home The environment and your health Air Air While we don’t often think about the ... do to protect yourself from dirty air . Indoor air pollution and outdoor air pollution Air can be ...

  6. Connections Between the Spring Breakup of the Southern Hemisphere Polar Vortex, Stationary Waves, and Air-sea Roughness

    Science.gov (United States)

    Garfinkel, Chaim I.; Oman, Luke David; Barnes, Elizabeth A.; Waugh, Darryn W.; Hurwitz, Margaret H.; Molod, Andrea M.

    2013-01-01

    A robust connection between the drag on surface-layer winds and the stratospheric circulation is demonstrated in NASA's Goddard Earth Observing System Chemistry-Climate Model (GEOSCCM). Specifically, an updated parameterization of roughness at the air-sea interface, in which surface roughness is increased for moderate wind speeds (4ms to 20ms), leads to a decrease in model biases in Southern Hemispheric ozone, polar cap temperature, stationary wave heat flux, and springtime vortex breakup. A dynamical mechanism is proposed whereby increased surface roughness leads to improved stationary waves. Increased surface roughness leads to anomalous eddy momentum flux convergence primarily in the Indian Ocean sector (where eddies are strongest climatologically) in September and October. The localization of the eddy momentum flux convergence anomaly in the Indian Ocean sector leads to a zonally asymmetric reduction in zonal wind and, by geostrophy, to a wavenumber-1 stationary wave pattern. This tropospheric stationary wave pattern leads to enhanced upwards wave activity entering the stratosphere. The net effect is an improved Southern Hemisphere vortex: the vortex breaks up earlier in spring (i.e., the spring late-breakup bias is partially ameliorated) yet is no weaker in mid-winter. More than half of the stratospheric biases appear to be related to the surface wind speed biases. As many other chemistry climate models use a similar scheme for their surface layer momentum exchange and have similar biases in the stratosphere, we expect that results from GEOSCCM may be relevant for other climate models.

  7. Terrorism in the Maritime Domain

    Science.gov (United States)

    2013-03-01

    2003 car bombing of JW Marriott hotel in Jakarta (that killed 12), and the 2005 suicide bombing of three places in Bali (that killed 22). Although it... bombings (explosive and fire), kidnappings, hostage taking, assassinations, arson, hijackings, skyjackings, cyber destruction, and nuclear, chemical, and...explosives. The group’s first attack, on August 10, 1991, was a maritime operation which bombed a foreign missionary ship, the MV Doulous. Other

  8. National Plan to Achieve Maritime Domain Awareness for the National Strategy for Maritime Security

    National Research Council Canada - National Science Library

    2005-01-01

    Maritime Domain Awareness (MDA) is the effective understanding of anything associated with the global maritime domain that could impact the security, safety, economy, or environment of the United States...

  9. International research collaboration in maritime health

    DEFF Research Database (Denmark)

    Jensen, Olaf Chresten

    2011-01-01

    The new ILO-2006-convention and the EU Commission's strategic objectives for the EU maritime transport policy 2008-2018, mentions the necessity of a modern health and safety system for maritime transportation. However, there is no specific strategy for the development of maritime health and safety....... The area is regulated by international standards based on international research-based knowledge on health and safety. Moreover, many of the world's seafarers come from developing countries with specific disease problems like HIV and no possibility of independent maritime health research. The international...... maritime health research is sparse, and an increase in such research is necessary to help benefit needed shipping as a highly globalized industry. This paper presents an example of such research, accompanied by a discussion of methods and opportunities to increase international maritime health research....

  10. Maritime Archaeology and Climate Change: An Invitation

    Science.gov (United States)

    Wright, Jeneva

    2016-12-01

    Maritime archaeology has a tremendous capacity to engage with climate change science. The field is uniquely positioned to support climate change research and the understanding of past human adaptations to climate change. Maritime archaeological data can inform on environmental shifts and submerged sites can serve as an important avenue for public outreach by mobilizing public interest and action towards understanding the impacts of climate change. Despite these opportunities, maritime archaeologists have not fully developed a role within climate change science and policy. Moreover, submerged site vulnerabilities stemming from climate change impacts are not yet well understood. This article discusses potential climate change threats to maritime archaeological resources, the challenges confronting cultural resource managers, and the contributions maritime archaeology can offer to climate change science. Maritime archaeology's ability to both support and benefit from climate change science argues its relevant and valuable place in the global climate change dialogue, but also reveals the necessity for our heightened engagement.

  11. Maritime Cyber Security University Research: Phase 1

    Science.gov (United States)

    2016-05-01

    the global economy . The vulnerabilities associated with reliance on digital systems in the maritime environment must be continuously examined. System...Report: Modern maritime systems are highly complex digital systems to ensure the safety and efficient operation of the shipping traffic so vital to...entrances to our " digital ports" and work to develop practical cyber security solutions to protect the nation’s maritime infrastructure. 17. Key

  12. Maritime emergency management capabilities in the Arctic

    DEFF Research Database (Denmark)

    Roud, Ensieh Kheiri Pileh; Borch, Odd Jarl; Jakobsen, Uffe

    2016-01-01

    Growing maritime commercial activities in the High North increase the possibility of unwanted incidents. The vulnerability related to human safety and environment and a challenging context, call for a strengthening of the maritime preparedness system, and cross-boundary and cross-institutional co......Growing maritime commercial activities in the High North increase the possibility of unwanted incidents. The vulnerability related to human safety and environment and a challenging context, call for a strengthening of the maritime preparedness system, and cross-boundary and cross...

  13. Maritime Domain Awareness Architecture Management Hub Strategy

    National Research Council Canada - National Science Library

    2008-01-01

    This document provides an initial high level strategy for carrying out the responsibilities of the national Maritime Domain Awareness Architecture Management Hub to deliver a standards based service...

  14. In situ study by polarization modulated Fourier transform infrared spectroscopy of the structure and orientation of lipids and amphipathic peptides at the air-water interface

    OpenAIRE

    Cornut, I.; Desbat, B.; Turlet, J.M.; Dufourcq, J.

    1996-01-01

    Free amphipathic peptides and peptides bound to dimyristoylphosphatidylcholine (DMPC) were studied directly at the air/water interface using polarization modulation infrared reflection absorption spectroscopy (PMIRRAS). Such differential reflectivity measurements proved to be a sensitive and efficient technique to investigate in situ the respective conformations and orientations of lipid and peptide molecules in pure and mixed films. Data obtained for melittin, a natural hemolytic peptide, ar...

  15. The GANDER constellation for maritime dissaster mitigation

    Science.gov (United States)

    da Silva Curiel, R. A.; Jolly, G.; Zheng, Y.

    1999-09-01

    The development of sea state monitoring from polar-orbiting satellites has recently moved away from the concept of single, multi-sensor platform such as ERS-2, Topex/Poseidon or ENVISAT towards the design of a system that would allow frequent updates from a constellation of small satellites equipped with special-purpose radar altimeters. This new system, called GANDER for Global Altimeter Network Designed to Evaluate Risk, has attracted significant support from a number of important customer segments including the military. This paper details the design of an altimeter for a Surrey small satellite, and illustrates the major system trade-offs that need to be made. Critical to the viability of the mission will be the development of a radar altimeter capable of operating successfully on a small satellite bus, within a limited volume and power budget. The mission design presents a number of key technological challenges, in order to permit a physically small antenna to be employed, and to minimise the pulse power. This can be achieved by advanced techniques, such as the delay Doppler altimeter concept, which emphasises the needs for high-speed on-board signal processing, phase linearity and pulse-to-pulse phase coherency. The system design for the GANDER constellation is also described, illustrating how it not only offers a means for maritime disaster mitigation, but also can reduce shipping cost and time.

  16. Maritime environmental penal law. International and German legislation; Maritimes Umweltstrafrecht. Voelkerrechtliche Grundlagen und deutsches Recht

    Energy Technology Data Exchange (ETDEWEB)

    Eller, Jan Frederik

    2017-07-01

    The book on maritime environmental penal law discusses the following issues: part I: introduction into the importance of oceanic environment and its thread, requirement of protective measures,; part II: focus of the study and terminology: oceanic pollution, maritime environmental legislation, international legislation; part 3: international legislative regulations concerning the protection of maritime environment: avoidance of environmental pollution, maritime legislative agreements, existing protective institutions; part 4: state penal power concerning maritime environmental protection; part 5: statutory offense according to German legislation; perspectives for regulations concerning criminal acts on sea.

  17. Operational Merits of Maritime Superconductivity

    Science.gov (United States)

    Ross, R.; Bosklopper, J. J.; van der Meij, K. H.

    The perspective of superconductivity to transfer currents without loss is very appealing in high power applications. In the maritime sector many machines and systems exist in the roughly 1-100 MW range and the losses are well over 50%, which calls for dramatic efficiency improvements. This paper reports on three studies that aimed at the perspectives of superconductivity in the maritime sector. It is important to realize that the introduction of superconductivity comprises two technology transitions namely firstly electrification i.e. the transition from mechanical drives to electric drives and secondly the transition from normal to superconductive electrical machinery. It is concluded that superconductivity does reduce losses, but its impact on the total energy chain is of little significance compared to the investments and the risk of introducing a very promising but as yet not proven technology in the harsh maritime environment. The main reason of the little impact is that the largest losses are imposed on the system by the fossil fueled generators as prime movers that generate the electricity through mechanical torque. Unless electric power is supplied by an efficient and reliable technology that does not involve mechanical torque with the present losses both normal as well as superconductive electrification of the propulsion will hardly improve energy efficiency or may even reduce it. One exception may be the application of degaussing coils. Still appealing merits of superconductivity do exist, but they are rather related to the behavior of superconductive machines and strong magnetic fields and consequently reduction in volume and mass of machinery or (sometimes radically) better performance. The merits are rather convenience, design flexibility as well as novel applications and capabilities which together yield more adequate systems. These may yield lower operational costs in the long run, but at present the added value of superconductivity rather seems more

  18. Maritime emergency management capabilities in the Arctic

    DEFF Research Database (Denmark)

    Roud, Ensieh Kheiri Pileh; Borch, Odd Jarl; Jakobsen, Uffe

    2016-01-01

    Growing maritime commercial activities in the High North increase the possibility of unwanted incidents. The vulnerability related to human safety and environment and a challenging context, call for a strengthening of the maritime preparedness system, and cross-boundary and cross...

  19. Managing Maritime Environment Surveillance And Information ...

    African Journals Online (AJOL)

    This paper examines critically the conceptual appraisal of managing maritime environment surveillance and information control in the Port Concession regime. Operating in a maritime environment is a very difficult task as the industry itself, is a secretive, volatile and fraudulent in nature. There are various restrictions that ...

  20. On English Teaching in Maritime Colleges

    Science.gov (United States)

    Shen, Jiang; Wang, Honggui

    2011-01-01

    According to English level of Chinese ocean sailors at present, we analyze the characteristics and instruction needs of navigation English and point out current English teaching in maritime specialty has many problems. Traditional teaching modes are not suitable for modern maritime needs any longer. So we propose feasible methods and…

  1. Urgensi Pengaturan Keamanan Maritim Nasional di Indonesia

    Directory of Open Access Journals (Sweden)

    Dhiana Puspitawati

    2017-08-01

    Full Text Available Located between two continents and two oceans, Indonesia is vulnerable to various transnational crimes. Hence, the concept of maritime security emerged. This paper focuses on three crucial matters, maritime delimitation, IUU Fishing as well as piracy and armed robbery at sea. This research aims to analyze the urgency of national maritime security legal framework in Indonesia. This research uses normative method with statute approach and comparative approach. It is submitted that although regional dan international cooperation is important to address maritime threats, national legal instrument is also necessary. Unfortunately, Indonesia still does not have comprehensive national legal instrument in place. Thus, it is argued that Indonesia should formulate specific policy and national legal frameworks in addressing maritime threats completed with certain measures for each threats as well as point out which institutions competent in handling each threats.

  2. Maritime Spatial Planning in Cyprus

    Science.gov (United States)

    Hadjimitsis, Diofantos; Agapiou, Athos; Themistocleous, Kyriakos; Mettas, Christodoulos; Evagorou, Evagoras; Soulis, Giorgos; Xagoraris, Zafeiris; Pilikou, Maria; Aliouris, Kyriakos; Ioannou, Nicolas

    2016-01-01

    Spatial Planning is a critical tool for land management and is extensively used in all developed nations. The Marine Spatial Planning (MSP), at the European Union (EU) level, is based on Directive 2014/89/EU of the European Parliament and Council of 23rd July 2014 which establishes a common framework for MSP in the EU, which each Member State is called to apply in relation to the maritime space under its jurisdiction (marine waters). In this paper the overall results from the "Cross-Border Cooperation for the development of Marine Spatial Planning" project are presented for the area of Cyprus. A variety of activities fall within the MSP such as maritime transport routes and traffic flows, exploration, exploitation and extraction of energy resources, tourism, underwater cultural heritage etc. In addition, the legal framework, activities maps are also shown. The variety of conflicts maps for the area of Limassol are illustrated both in 2D and 3D. A hypothetical scenario of Limassol town in Cyprus as an energy center is presented based on the overall results. The paper ends with some conclusions regarding the framework of MSP in Cyprus.

  3. Maritime Spatial Planning in Cyprus

    Directory of Open Access Journals (Sweden)

    Hadjimitsis Diofantos

    2016-01-01

    Full Text Available Spatial Planning is a critical tool for land management and is extensively used in all developed nations. The Marine Spatial Planning (MSP, at the European Union (EU level, is based on Directive 2014/89/EU of the European Parliament and Council of 23rd July 2014 which establishes a common framework for MSP in the EU, which each Member State is called to apply in relation to the maritime space under its jurisdiction (marine waters. In this paper the overall results from the “Cross-Border Cooperation for the development of Marine Spatial Planning” project are presented for the area of Cyprus. A variety of activities fall within the MSP such as maritime transport routes and traffic flows, exploration, exploitation and extraction of energy resources, tourism, underwater cultural heritage etc. In addition, the legal framework, activities maps are also shown. The variety of conflicts maps for the area of Limassol are illustrated both in 2D and 3D. A hypothetical scenario of Limassol town in Cyprus as an energy center is presented based on the overall results. The paper ends with some conclusions regarding the framework of MSP in Cyprus.

  4. Maritime Security Concerns of the East African Community (EAC ...

    African Journals Online (AJOL)

    The maritime domain of the East African Community (EAC) is affected by a number of maritime security threats, including piracy, armed robbery against ships and an ongoing maritime border dispute between Kenya and Somalia. Neither the EAC nor its member States have long-term and holistic maritime security policies.

  5. 47 CFR 80.1135 - Transmission of maritime safety information.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Transmission of maritime safety information. 80... RADIO SERVICES STATIONS IN THE MARITIME SERVICES Global Maritime Distress and Safety System (GMDSS) Operating Procedures for Distress and Safety Communications § 80.1135 Transmission of maritime safety...

  6. 47 CFR 80.1069 - Maritime sea areas.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Maritime sea areas. 80.1069 Section 80.1069 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Global Maritime Distress and Safety System (GMDSS) General Provisions § 80.1069 Maritime...

  7. 32 CFR 537.15 - Statutory authority for maritime claims and claims involving civil works of a maritime nature.

    Science.gov (United States)

    2010-07-01

    ... claims involving civil works of a maritime nature. 537.15 Section 537.15 National Defense Department of....15 Statutory authority for maritime claims and claims involving civil works of a maritime nature. (a... affirmative claims involving civil works of a maritime nature is set out at 33 U.S.C. 408. ...

  8. Soil micromorphology, geochemistry and microbiology at two sites on James Ross Island, Maritime Antarctica

    Science.gov (United States)

    Meier, Lars A.; Krauze, Patryk; Prater, Isabel; Scholten, Thomas; Wagner, Dirk; Kühn, Peter; Mueller, Carsten W.

    2017-04-01

    Referring to the fundamental question in ecosystem research, how biotic and abiotic processes interact, only a few studies exist for polar regions that integrate microbiological and soil scientific studies . Soils comprise the complex structure and environment that fosters water storage and nutrient cycling determined by its unique chemical, physical and biological properties with respect to the specific climate and parent material. In the extreme environment of Antarctica, soil biological processes are primarily controlled by microbial communities (Bacteria, Archaea and Fungi), and thus microbiota may also determine soils chemical and physical properties in a landscape lacking higher plants at an average air temperature below 0°C. James Ross Island, Maritime Antarctica, offers a pristine laboratory and an exceptional opportunity to study pedogenesis without the influence of vascular plants and burrowing animals. We analysed micromorphological features, chemical and microbiological measures at two sites on James Ross Island (Brandy Bay and St. Martha Cove) with similar substrates (mostly fine-grained calcareous sandstones and siltstones of the Alpha Member of the Santa Martha Formation with varying amounts of conglomerates and mudstones) at similar topographic positions (small plateaus at similar elevation (80m a.s.l.)). The sites represent luv- and leeward conditions with respect to the main southwesterly winds. The climate on James Ross Island is to be described as semi-arid polar-continental, which is in clear contrast to the Southern Shetlands (e.g. King George Island) north of the Antarctic Peninsula. We will present first results of soil physical (bulk density, soil moisture and grains size distribution), pedochemical (SOC, total N and S, pH, CECeff, and pedogenic oxides) micromorphological and microbial analyses (Microbial DNA content, microbial abundances).

  9. A Study of Social Networks for Maritime Education and Training

    OpenAIRE

    Tomoki Takimoto; Masao Furusho

    2016-01-01

    This study analyzes the role played by social networks in maritime education and training. The objective of this study is to investigate the shortage of seafarers in maritime global transportation, as mentioned by the BIMCO. The authors divide the processes of maritime education and training into two categories: “Maritime educational institute” and “Maritime Company.” These are not systematically connected but are found in the processes between social networks; it has the social networks to b...

  10. Development of supporting system for emergency response to maritime transport accidents involving radioactive material

    International Nuclear Information System (INIS)

    Odano, N.; Matsuoka, T.; Suzuki, H.

    2004-01-01

    National Maritime Research Institute has developed a supporting system for emergency response of competent authority to maritime transport accidents involving radioactive material. The supporting system for emergency response has functions of radiation shielding calculation, marine diffusion simulation, air diffusion simulation and radiological impact evaluation to grasp potential hazard of radiation. Loss of shielding performance accident and loss of sealing ability accident were postulated and impact of the accidents was evaluated based on the postulated accident scenario. Procedures for responding to emergency were examined by the present simulation results

  11. The New Barbary Wars: Forecasting Maritime Piracy

    NARCIS (Netherlands)

    Daxecker, U.E.; Prins, B.C.

    2015-01-01

    This paper extends systematic analyses of maritime piracy by verifying the robustness of empirical results and examining the forecasting ability of empirical models. Recent research by Ward, Greenhill and Bakke (2010) finds that statistically significant relationships frequently offer poor guidance

  12. Maritime Piracy: Reasons, Dangers and Solutions

    National Research Council Canada - National Science Library

    Chalk, Peter

    2009-01-01

    This testimony aims to inform and put into context the current debate on piracy by providing an overview of the scope and contributing factors driving armed maritime violence in the contemporary era...

  13. Maritime Governance and Policy-Making

    CERN Document Server

    Roe, Michael

    2013-01-01

    A close analysis of the framework of existing governance and the existing jurisdictional arrangements for shipping and ports reveals that while policy-making is characterized by national considerations through flags, institutional representation at all jurisdictions and the inviolability of the state, the commercial, financial, legal and operational environment of the sector is almost wholly global. This governance mismatch means that in practice the maritime industry can avoid policies which it dislikes by trading nations off against one another, while enjoying the freedoms and benefits of a globalized economy. A Post-modern interpretation of this globalized society prompts suggestions for change in maritime policy-making so that the governance of the sector better matches more closely the environment in which shipping and ports operate. Maritime Governance and Policy-Making is a controversial commentary on the record of policy-making in the maritime sector and assesses whether the reason for continued polic...

  14. Maritime Load Dependent Lead Times - An Analysis

    DEFF Research Database (Denmark)

    Pahl, Julia; Voss, Stefan

    2017-01-01

    steps and increased container lead times. Proposed solutions to fight congestion range from extend-ing port capacities to process optimization of parts of the maritime supply chain. The potential that lies in information sharing and integrated planning using IT has received some attention, but mainly...... on the operational level concerning timely information sharing. Collaborative planning approaches for the maritime supply chain are scarce. The production industry already implemented planning and in-formation concepts. Problems related to the maritime supply chain have great similarities with those encountered...... in production. Inspired by supply chain planning systems, we analyze the current state of (collaborative) planning in the maritime transport chain with focus on containers. Regarding the problem of congestion, we particularly emphasize on load dependent lead times (LDLT) which are well studied in production....

  15. Regional Maritime University Journal - Vol 1 (2011)

    African Journals Online (AJOL)

    Human errors and system variability in safety investigations of maritime casualties: an expression of systemic concerns · EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. KT Ghirxi, 10-22 ...

  16. Maritime archaeology of Lakshadweep Islands, India

    Digital Repository Service at National Institute of Oceanography (India)

    Tripati, S.; Gaur, A.S.; Sundaresh; Vora, K.H.

    route from Europe to Asia before the opening of the Suez Canal In order to delineate the earliest human habitation and maritime contacts of Lakshadweep Islands, archaeological explorations was carried on by the Archaeological Survey of India (ASI...

  17. The Maritime Cultural Landscape of Northern Patagonia

    Science.gov (United States)

    Lira, Nicolás

    2017-12-01

    This article is a contribution to the study of the indigenous navigation and its boats in the region of northern Patagonia. This article also aims to contribute to the understanding of indigenous navigation practices and technologies and their origins from prehistoric times to the mid-twentieth century. It presents and discusses the concept of Westerdahl's Maritime Cultural Landscape in relation to other landscape concepts. This model is applied to northern Patagonia in order to discuss if it is possible to speak of a true maritime culture in the region. For this purpose, archaeological, historical and ethnographic data are presented in an integrative and innovative methodology for the discipline. Finally, the Maritime Cultural Landscape model will allow the integration of aquatic and terrestrial landscapes as routes traveled by native inhabitants of northern Patagonia and southern Chile, and propose an important and diversified maritime, river and lake tradition.

  18. Physically realistic modeling of maritime training simulation

    OpenAIRE

    Cieutat , Jean-Marc

    2003-01-01

    Maritime training simulation is an important matter of maritime teaching, which requires a lot of scientific and technical skills.In this framework, where the real time constraint has to be maintained, all physical phenomena cannot be studied; the most visual physical phenomena relating to the natural elements and the ship behaviour are reproduced only. Our swell model, based on a surface wave simulation approach, permits to simulate the shape and the propagation of a regular train of waves f...

  19. Maritim epidemiologi på Supercourse

    DEFF Research Database (Denmark)

    Jensen, Olaf

    2015-01-01

    Maritim epidemiologi er nu kommet med i samlingen af undervisningsmidler på ”Supercourse”. Der er oprettet en særlig mappe med Maritime Epidemiology og alle der har gode bidrag inden for området opfordres hermed til at publicere her. Supercourse er en samling af foredrag beregnet til at være en r...... of Pittsburgh af bla. Ronald LaPorte, Faina Linkov, Mita Lovalekar og Eugene Shubnikov. God fornøjelse Olaf Jensen...

  20. Low clouds suppress Arctic air formation and amplify high-latitude continental winter warming.

    Science.gov (United States)

    Cronin, Timothy W; Tziperman, Eli

    2015-09-15

    High-latitude continents have warmed much more rapidly in recent decades than the rest of the globe, especially in winter, and the maintenance of warm, frost-free conditions in continental interiors in winter has been a long-standing problem of past equable climates. We use an idealized single-column atmospheric model across a range of conditions to study the polar night process of air mass transformation from high-latitude maritime air, with a prescribed initial temperature profile, to much colder high-latitude continental air. We find that a low-cloud feedback--consisting of a robust increase in the duration of optically thick liquid clouds with warming of the initial state--slows radiative cooling of the surface and amplifies continental warming. This low-cloud feedback increases the continental surface air temperature by roughly two degrees for each degree increase of the initial maritime surface air temperature, effectively suppressing Arctic air formation. The time it takes for the surface air temperature to drop below freezing increases nonlinearly to ∼ 10 d for initial maritime surface air temperatures of 20 °C. These results, supplemented by an analysis of Coupled Model Intercomparison Project phase 5 climate model runs that shows large increases in cloud water path and surface cloud longwave forcing in warmer climates, suggest that the "lapse rate feedback" in simulations of anthropogenic climate change may be related to the influence of low clouds on the stratification of the lower troposphere. The results also indicate that optically thick stratus cloud decks could help to maintain frost-free winter continental interiors in equable climates.

  1. Coast Guard Polar Icebreaker Modernization: Background and Issues for Congress

    Science.gov (United States)

    2016-11-10

    nine missions supported by polar ice operations are search and rescue; maritime safety; aids to navigation; ice operations; marine environmental...operations are search and rescue; maritime safety; aids to navigation; ice operations; marine environmental protection; living marine resources...1 (+0 +1) 1 Japan 1 1 Australia 1 1 Chile 1 1 Latvia 1 1 South Korea 1 1 South Africa 1 1 Argentina 1 1

  2. Indirect radiative forcing of aerosols via water vapor above non-precipitating maritime cumulus clouds

    OpenAIRE

    M. A. Pfeffer; J. E. Kristjansson; F. Stordal; T. Berntsen; J. Fast

    2011-01-01

    Aerosol-cloud-water vapor interactions in clean maritime air have been described for different aerosol sources using the WRF-Chem atmospheric model. The simulations were made over the Lesser Antilles in the region of the RICO measurement campaign where the clouds are low, patchy, typical trade-wind cumuli. In this very clean air, sea salt and DMS are found to have greater effects than anthropogenic pollution on the cloud droplets' effective radii and longwave and shortwave outgoing top of atm...

  3. Emissions of maritime transport: a European reference system.

    Science.gov (United States)

    Schrooten, Liesbeth; De Vlieger, Ina; Panis, Luc Int; Chiffi, Cosimo; Pastori, Enrico

    2009-12-20

    Emissions from ships have recently received more attention since they have become a significant concern for air quality in harbours and port cities. This paper presents the methodology for a comprehensive maritime transport database of activity data, specific energy consumption, emission factors, and total emissions that have been developed within the European EX-TREMIS project. The model is built upon 3 modules: the fleet module, the transport activity module, and the emission module. The fleet module defines the ship categories, the loading capacities, and the engine characteristics of the different vessels by using EUROSTAT data, Sea Web Lloyd's database, and international literature. The transport activity module transforms total cargo handled (mainly based on EUROSTAT data and CEMT statistics) into ship-equivalents. These ship-equivalents are further transformed into ship-hours. The emission module calculates energy uses and CO(2), NO(X), SO(2), CO, HC, CH(4), NMHC, PM emissions from the resulting maritime activities. We have used technology based emission factors to take into account the technological evolution of vessels. To illustrate this new methodology, we present some results (emissions, fuel consumption and emission factors) for different countries. The overall methodology as well as the results and the country specific energy consumption and emission factors per ship type and size class can be extracted from the EX-TREMIS website (www.ex-tremis.eu). Our results contribute to more accurate estimates of emissions and air quality assessments in coastal cities and ports.

  4. Forest health in Canada, Atlantic Maritime ecozone 2003

    Energy Technology Data Exchange (ETDEWEB)

    Hurley, J.E.; Loo, J.; DesRochers, P.; Hirvonen, H.

    2004-07-01

    This paper describes the key forest health issues affecting Canada's Atlantic Maritime ecozone which includes 9 main forest types known collectively as the Acadian Forest. In order to protect and conserve biological diversity, the Canadian Council of Forest Ministers adopted national criteria to measure sustainable forest management. This report describes the Acadian Forest landscape conditions, pre-industrial ecological influences, current ecological influences, and the impact of invasive alien insects and diseases on the diversity of tree species. Spruce trees in the Atlantic Maritime ecozone are threatened by the brown spruce longhorn beetle and pine trees are threatened by a pine shoot beetle recently introduced to North America from Asia. Diseases are also attacking the butternut, beech and dutch trees. The impact of land use practices such as forest harvesting on forest structure and composition was also addressed along with the impact of air pollution and climate change. It was noted that there is a direct relationship between deteriorating air quality and decline in mountain paper birch. Some of the anticipated impacts from climate change include a greater incidence of vector borne diseases resulting from the migration of new insect species in a warmer Canadian climate. An increase in extreme weather events such as ice storms may also weaken trees. refs., tabs., figs.

  5. Information Services of Maritime Industry

    Science.gov (United States)

    Palazov, Atanas; Stefanov, Asen

    2015-04-01

    The ultimate goal of modern oceanography is an end user oriented product. Beneficiaries are the governmental services, coast-based enterprises and research institutions that make use of the products generated by operational oceanography. Direct potential users and customers are coastal managers, shipping, offshore industry, ports and harbours, fishing, tourism and recreation industry, and scientific community. Indirect beneficiaries, through climate forecasting based on ocean observations, are food, energy, water and medical suppliers. Five general classes of users for data and information are specified: (1) operational users that analyze the collected data and produce different forecasts serving to impose regulation measures; (2) authorities and managers of large-scale projects needing timely oceanographic information, including statistics and climatic trends; (3) industrial enterprises, safety of structures and avoiding of pollution; (4) tourism and recreation related users aiming protection of human health; (5) scientists, engineers, and economists carrying out special researches, strategic design studies, and other investigations to advance the application of marine data. The analysis of information received during the extensive inquiry among all potential end users reveals variety of data and information needs encompassing physical, chemical, biological and hydrometeorological observation. Nevertheless, the common requirement concerns development of observing and forecasting systems providing accurate real-time or near-real time data and information supporting decision making and environmental management. Availability of updated information on the actual state as well as forecast for the future changes of marine environment are essential for the success and safety of maritime operations in the offshore industry. For this purpose different systems have been developed to collect data and to produce forecasts on the state of the marine environment and to provide

  6. Genomic selection in maritime pine.

    Science.gov (United States)

    Isik, Fikret; Bartholomé, Jérôme; Farjat, Alfredo; Chancerel, Emilie; Raffin, Annie; Sanchez, Leopoldo; Plomion, Christophe; Bouffier, Laurent

    2016-01-01

    A two-generation maritime pine (Pinus pinaster Ait.) breeding population (n=661) was genotyped using 2500 SNP markers. The extent of linkage disequilibrium and utility of genomic selection for growth and stem straightness improvement were investigated. The overall intra-chromosomal linkage disequilibrium was r(2)=0.01. Linkage disequilibrium corrected for genomic relationships derived from markers was smaller (rV(2)=0.006). Genomic BLUP, Bayesian ridge regression and Bayesian LASSO regression statistical models were used to obtain genomic estimated breeding values. Two validation methods (random sampling 50% of the population and 10% of the progeny generation as validation sets) were used with 100 replications. The average predictive ability across statistical models and validation methods was about 0.49 for stem sweep, and 0.47 and 0.43 for total height and tree diameter, respectively. The sensitivity analysis suggested that prior densities (variance explained by markers) had little or no discernible effect on posterior means (residual variance) in Bayesian prediction models. Sampling from the progeny generation for model validation increased the predictive ability of markers for tree diameter and stem sweep but not for total height. The results are promising despite low linkage disequilibrium and low marker coverage of the genome (∼1.39 markers/cM). Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  7. Hybrid Maritime Satellite Communication Antenna

    DEFF Research Database (Denmark)

    Smith, Thomas Gunst

    Hybrid antennas for a maritime satellite communication terminal with simultaneous operation at L- and Ka-band have been investigated. The frequency bands of interest are 1; 525:0 1; 660:5 MHz (RX+TX, RHCP), 19:7 20:2 (RX, LHCP) and 29:5 30:0 GHz (TX, RHCP), which are all part of the Inmarsat BGAN....... The Ka-band dual-reflector is inherently a high-gain and low-loss antenna, and investigations show negligible impact of the L-band backfire helical antenna. Therfore, this hybrid single/dual-reflector antenna presents a viable solution to the combined L- and Ka-band antenna. Novel hybrid antennas...... on the performance of an L-band antenna radiating through the FSS. From these investigations, it is concluded that the FSS antenna concept is well suited for hybrid L- and Ka-band operation. A printed reflectarray antenna with FSS ground-plane is demonstrated. The reflectarray produces a collimated beam as a curved...

  8. Polarization-dependent transverse-stress sensing based on photonic crystal fiber with gold-coated air-holes

    Science.gov (United States)

    Liu, Hai; Zhu, Chenghao; Wang, Yan; Tan, Ce; Li, Hongwei; Cheng, Deqiang

    2017-05-01

    A transverse-stress sensor with polarization filtering function based on a specially designed photonic crystal fiber (PCF) is proposed. Four ultralarge side-holes are introduced into the cladding layer, and two of them are gold-coated to enhance the stress sensitivity. The finite element method is applied to study the polarization-dependent wavelength-selective sensing characteristics at the optical communication wavelength. Results reveal that the sensor can achieve a high sensitivity in either direction that can be divided into an x-direction component and a y-direction component. Combining the advantages of side-hole structure and surface plasmon resonance technology, the proposed sensor is believed to be an excellent candidate for the transverse-stress measurement.

  9. Testing of a compact 10-Gbps Lasercomm system for maritime platforms

    Science.gov (United States)

    Juarez, Juan C.; Souza, Katherine T.; Nicholes, Dustin D.; Riggins, James L.; Tomey, Hala J.; Venkat, Radha A.

    2017-08-01

    Lasercomm technology continues to be of interest for many applications both in the commercial and defense sectors because of its potential to provide high bandwidth communications that are secure without the need for RF spectrum management. Over the last decade, terrestrial Lasercomm development has progressed from initial experiments in the lab through field demonstrations in airborne and maritime environments. While these demonstrations have shown high capability levels, the complexity, size, weight, and power of the systems has slowed transition into fielded systems. This paper presents field test results of a recently developed maritime Lasercomm terminal and modem architecture with a compact form factor for enabling robust, 10-Gbps class data transport over highly scintillated links as found in terrestrial applications such as air-to-air, air-to-surface, and surface-to-surface links.

  10. THE MANAGERIAL BENEFITS AND LIMITATIONS OF BIODIESEL USAGE IN MARITIME TRANSPORTATION

    Directory of Open Access Journals (Sweden)

    MARIAN BUNEA

    2016-06-01

    Full Text Available The global economy development has not only positive effects but also negative consequences, in terms of air pollution with a major impact against the climate change and human health. This fact stimulated the intensification of research endeavours to identify and develop new options for sustainable energy supply and further for reducing the dependence on fossil fuels, as considered the major air pollutants globally. Among the non-polluting fuels, the currently biodiesel second generation becomes a viable solution in order to develop an alternative sustainable source of fueling. Even if this type of fuel has been implemented and approved as viable for land and air transportation meanings, the maritime transportation sector is still reluctant in implementing this new fuel on board to commercial vessels. In this article were approached the major advantages of using biodiesel powered engines, being detailed the technical, operational and legal solutions to eliminate the current reserve in adopting this innovative cleaner fuel on maritime transportation practice.

  11. ANN Synthesis Model of Single-Feed Corner-Truncated Circularly Polarized Microstrip Antenna with an Air Gap for Wideband Applications

    Directory of Open Access Journals (Sweden)

    Zhongbao Wang

    2014-01-01

    Full Text Available A computer-aided design model based on the artificial neural network (ANN is proposed to directly obtain patch physical dimensions of the single-feed corner-truncated circularly polarized microstrip antenna (CPMA with an air gap for wideband applications. To take account of the effect of the air gap, an equivalent relative permittivity is introduced and adopted to calculate the resonant frequency and Q-factor of square microstrip antennas for obtaining the training data sets. ANN architectures using multilayered perceptrons (MLPs and radial basis function networks (RBFNs are compared. Also, six learning algorithms are used to train the MLPs for comparison. It is found that MLPs trained with the Levenberg-Marquardt (LM algorithm are better than RBFNs for the synthesis of the CPMA. An accurate model is achieved by using an MLP with three hidden layers. The model is validated by the electromagnetic simulation and measurements. It is enormously useful to antenna engineers for facilitating the design of the single-feed CPMA with an air gap.

  12. Extended X-ray absorption fine structure of copper(II) complexes at the air-water interface by a polarized total-reflection X-ray absorption technique.

    Science.gov (United States)

    Nagatani, Hirohisa; Tanida, Hajime; Watanabe, Iwao; Sagara, Takamasa

    2009-04-01

    Copper(II) complexes spread on an aqueous solution surface were studied by a polarized total-reflection X-ray absorption fine structure (TR-XAFS) technique. The polarized TR-XAFS spectra at the Cu-K edge for copper(II) porphyrins and copper(II) chlorophyllin in a monolayer were measured in situ at the air-water interface. The polarization dependences of X-ray absorption near-edge structure (XANES) involving a 1s-->4p(z) transition allowed us to estimate the molecular orientation and the local coordination structure around the copper(II) atom in the polarization plane selectively. The extended X-ray absorption fine structure (EXAFS) region of the polarized TR-XAFS spectra for the metal complexes present at the air-water interface was successfully analyzed for the first time. The relative coordination number for the copper center evaluated from the EXAFS analysis indicated larger values in the vertical polarization than in the horizontal one, in agreement with the standing-up molecular orientation at the air-water interface estimated from the XANES region.

  13. The influence of firn air transport processes and radiocarbon production on gas records from polar firn and ice

    DEFF Research Database (Denmark)

    Buizert, Christo

    in Northern Greenland (77.45 o N 51.06 o W). The depthdiffusivity relationship needs to be reconstructed using reference tracers of known atmospheric history. We present a novel method of characterizing the firn transport using ten tracers simultaneously, thus constraining the effective diffusivity better...... does not vanish completely in the lock-in zone, as is commonly assumed. Six state-of-the-art firn air transport models are tuned to the NEEM site; all models successfully reproduce the data within a 1 Gaussian distribution. We present the first intercomparison study of firn air models, where we...

  14. Polarization Optics

    OpenAIRE

    Fressengeas, Nicolas

    2010-01-01

    The physics of polarization optics *Polarized light propagation *Partially polarized light; DEA; After a brief introduction to polarization optics, this lecture reviews the basic formalisms for dealing with it: Jones Calculus for totally polarized light and Stokes parameters associated to Mueller Calculus for partially polarized light.

  15. Polarity and air-stability transitions in field-effect transistors based on fullerenes with different solubilizing groups.

    Science.gov (United States)

    Yu, Hojeong; Cho, Han-Hee; Cho, Chul-Hee; Kim, Ki-Hyun; Kim, Dong Yeong; Kim, Bumjoon J; Oh, Joon Hak

    2013-06-12

    A series of o-xylene and indene fullerene derivatives with varying frontier molecular orbital energy levels were utilized for assessing the impact of the number of solubilizing groups on the electrical performance of fullerene-based organic-field-effect transistors (OFETs). The charge-carrier polarity was found to be strongly dependent upon the energy levels of fullerene derivatives. The o-xylene C60 monoadduct (OXCMA) and indene C60 monoadduct (ICMA) exhibited unipolar n-channel behaviors with high electron mobilities, whereas the bis- and trisadducts of indene and o-xylene C60 derivatives showed ambipolar charge transport. The OXCMA OFETs fabricated by solution shearing and molecular n-type doping showed an electron mobility of up to 2.28 cm(2) V(-1) s(-1), which is one of the highest electron mobilities obtained from solution-processed fullerene thin-film devices. Our findings systematically demonstrate the relationship between the energy level and charge-carrier polarity and provide insight into molecular design and processing strategies toward high-performance fullerene-based OFETs.

  16. Maritime oil freight flows to 2050: Delphi perceptions of maritime specialists

    International Nuclear Information System (INIS)

    Dinwoodie, John; Tuck, Sarah; Rigot-Müller, Patrick

    2013-01-01

    This paper aims to synthesise maritime specialists' perceptions of changing patterns of maritime oil freight flows to 2050. Debate spans published maritime oil flows globally, diverse drivers of future flows including economic growth, shipping market changes and haul lengths. A classic Delphi study to explore the perceptions of likely trends and flows to 2050 recruited a panel of early career and established maritime specialists, many with long term career commitments to this industry. Underpinned by market volatility and legislative uncertainty, the perceptions of both groups coincided and were conservative. Local sourcing, new Arctic seaways and fossil fuel intolerance will tend to reduce oil freight work but perceptions of ship re-routing to avoid for example Emission Control Areas and piracy would tend to lengthen hauls. In advanced industrial nations, reducing energy intensities and diminishing social tolerance of fossil fuels imply gradually reducing maritime oil shipments. However, to achieve radical national commitments to carbon emissions reductions will necessitate specialist education for naturally conservative maritime professionals and vigorous oil import reduction policies to curtail domestic demand for oil shipments. - Highlights: • Local sourcing, Arctic seaways and fossil fuel intolerance lessen oil freight work. • Oil hauls lengthen if ships re-route to avoid Emission Control Areas and piracy. • Conservative perceptions of established specialists match early career views. • Carbon emission reduction policies imply significantly reduced oil shipments. • Attitude change in maritime professionals will require education and marketing

  17. Tactical Decision Aid For Unmanned Vehicles In Maritime Missions

    National Research Council Canada - National Science Library

    Duhan, Daniel

    2005-01-01

    An increasing number of unmanned vehicles (UV) are being incorporated into maritime operations as organic elements of Expeditionary and Carrier Strike Groups for development of the recognized maritime picture...

  18. Maritime governance speed, flow, form process

    CERN Document Server

    Roe, Michael

    2016-01-01

    This book provides an original analysis of the problems facing global governance and in particular that of one of the most globalised of all industries – shipping. Central to all global trade and its dramatic growth, shipping faces difficulties of governance stemming from its every globalised nature. The current characteristics of global governance – nation-state fixation, anachronistic institutions, inadequate stakeholder involvement and an over-domination of owner interests are dwarfed by the problems of stasis and fixation which means that policies to address problems of safety, the environment and security are inadequate. This book provides a full and wide ranging discussion of how governance can be animated in a global context so that the dynamism of the maritime industry and its problems can be prevented, regulated and understood. Its unique approach to governance makes it essential reading for all maritime policy-makers and those analysing maritime issues, alongside those with an interest in govern...

  19. Air-water exchange of anthropogenic and natural organohalogens on International Polar Year (IPY) expeditions in the Canadian Arctic.

    Science.gov (United States)

    Wong, Fiona; Jantunen, Liisa M; Pućko, Monika; Papakyriakou, Tim; Staebler, Ralf M; Stern, Gary A; Bidleman, Terry F

    2011-02-01

    Shipboard measurements of organohalogen compounds in air and surface seawater were conducted in the Canadian Arctic in 2007-2008. Study areas included the Labrador Sea, Hudson Bay, and the southern Beaufort Sea. High volume air samples were collected at deck level (6 m), while low volume samples were taken at 1 and 15 m above the water or ice surface. Water samples were taken within 7 m. Water concentration ranges (pg L(-1)) were as follows: α-hexachlorocyclohexane (α-HCH) 465-1013, γ-HCH 150-254, hexachlorobenzene (HCB) 4.0-6.4, 2,4-dibromoanisole (DBA) 8.5-38, and 2,4,6-tribromoanisole (TBA) 4.7-163. Air concentration ranges (pg m(-3)) were as follows: α-HCH 7.5-48, γ-HCH 2.1-7.7, HCB 48-71, DBA 4.8-25, and TBA 6.4 - 39. Fugacity gradients predicted net deposition of HCB in all areas, while exchange directions varied for the other chemicals by season and locations. Net evasion of α-HCH from Hudson Bay and the Beaufort Sea during open water conditions was shown by air concentrations that averaged 14% higher at 1 m than 15 m. No significant difference between the two heights was found over ice cover. The α-HCH in air over the Beaufort Sea was racemic in winter (mean enantiomer fraction, EF = 0.504 ± 0.008) and nonracemic in late spring-early summer (mean EF = 0.476 ± 0.010). This decrease in EF was accompanied by a rise in air concentrations due to volatilization of nonracemic α-HCH from surface water (EF = 0.457 ± 0.019). Fluxes of chemicals during the southern Beaufort Sea open water season (i.e., Leg 9) were estimated using the Whitman two-film model, where volatilization fluxes are positive and deposition fluxes are negative. The means ± SD (and ranges) of net fluxes (ng m(-2) d(-1)) were as follows: α-HCH 6.8 ± 3.2 (2.7-13), γ-HCH 0.76 ± 0.40 (0.26-1.4), HCB -9.6 ± 2.7 (-6.1 to -15), DBA 1.2 ± 0.69 (0.04-2.0), and TBA 0.46 ± 1.1 ng m(-2) d(-1) (-1.6 to 2.0).

  20. OCCIMA: Optical Channel Characterization in Maritime Atmospheres

    Science.gov (United States)

    Hammel, Steve; Tsintikidis, Dimitri; deGrassie, John; Reinhardt, Colin; McBryde, Kevin; Hallenborg, Eric; Wayne, David; Gibson, Kristofor; Cauble, Galen; Ascencio, Ana; Rudiger, Joshua

    2015-05-01

    The Navy is actively developing diverse optical application areas, including high-energy laser weapons and free- space optical communications, which depend on an accurate and timely knowledge of the state of the atmospheric channel. The Optical Channel Characterization in Maritime Atmospheres (OCCIMA) project is a comprehensive program to coalesce and extend the current capability to characterize the maritime atmosphere for all optical and infrared wavelengths. The program goal is the development of a unified and validated analysis toolbox. The foundational design for this program coordinates the development of sensors, measurement protocols, analytical models, and basic physics necessary to fulfill this goal.

  1. Maritim epidemiologi på Supercourse

    OpenAIRE

    Jensen, Olaf

    2015-01-01

    Maritim epidemiologi er nu kommet med i samlingen af undervisningsmidler på ”Supercourse”. Der er oprettet en særlig mappe med Maritime Epidemiology og alle der har gode bidrag inden for området opfordres hermed til at publicere her. Supercourse er en samling af foredrag beregnet til at være en ressource til at forbedre undervisningen om forebyggelse. Det er et netværk med mere end 56000 videnskabsfolk i 174 lande, der deler gratis et bibliotek af 5264 foredrag på 31 sprog. Det er en teknolog...

  2. 77 FR 51817 - National Maritime Security Advisory Committee; Meeting

    Science.gov (United States)

    2012-08-27

    ...: The National Maritime Security Advisory Committee (NMSAC) will meet on September 11-12, 2012 in the Washington, DC metropolitan area to discuss various issues relating to national maritime security. This... DEPARTMENT OF HOMELAND SECURITY Coast Guard [USCG-2012-0797] National Maritime Security Advisory...

  3. Evolution of the Regional Maritime University: A historical perspective

    African Journals Online (AJOL)

    The Regional Maritime University is a regional institution established as a result of the signing of an instrument of transfer of the Ghana Nautical College between the Government of Ghana and the Ministerial Conference of West and Central African States on Maritime Transport (MINCOMAR), now known as the Maritime ...

  4. 47 CFR 80.389 - Frequencies for maritime support stations.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Frequencies for maritime support stations. 80.389 Section 80.389 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Frequencies Maritime Support Stations § 80.389...

  5. 31 CFR 538.519 - Aircraft and maritime safety.

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Aircraft and maritime safety. 538.519..., Authorizations, and Statements of Licensing Policy § 538.519 Aircraft and maritime safety. Specific licenses may... aircraft, and to ensure the safety of ocean-going maritime traffic in international waters. ...

  6. 29 CFR 2530.200b-6 - Maritime industry.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Maritime industry. 2530.200b-6 Section 2530.200b-6 Labor... Provisions § 2530.200b-6 Maritime industry. (a) General. Sections 202(a)(3)(D), 203(b)(2)(D) and 204(b)(3)(E... provisions applicable to the maritime industry. In general, those provisions permit statutory standards...

  7. 32 CFR 537.16 - Scope for maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Scope for maritime claims. 537.16 Section 537.16... BEHALF OF THE UNITED STATES § 537.16 Scope for maritime claims. The Army Maritime Claims Settlement Act (10 U.S.C. 4803-4804) applies worldwide and includes claims that arise on high seas or within the...

  8. 32 CFR 536.119 - Scope for maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Scope for maritime claims. 536.119 Section 536... CLAIMS AGAINST THE UNITED STATES Maritime Claims § 536.119 Scope for maritime claims. The AMCSA applies worldwide and includes claims that arise on high seas or within the territorial waters of a foreign country...

  9. 77 FR 28894 - Maritime Vulnerability Self-Assessment Tool

    Science.gov (United States)

    2012-05-16

    ... maritime vulnerability self- assessment tool. SUMMARY: The Transportation Security Administration (TSA) announces that the TSA Maritime Self-Assessment Risk Module (TMSARM), developed to support the United States... of the Maritime Self-Assessment Risk Module (TMSARM). The TMSARM was developed to support the USCG...

  10. 75 FR 22151 - National Maritime Security Advisory Committee; Vacancies

    Science.gov (United States)

    2010-04-27

    ... Inter-modal Supply Chain. Maritime Hazardous Materials Handling/Shipping. State and Local Government... and multilateral solutions to maritime security issues; Addressing security issues and concerns... field are encouraged to apply: Port Operations Management/Port Authorities. Maritime Security Operations...

  11. Measuring the effect of ion-induced drift-gas polarization on the electrical mobilities of multiply-charged ionic liquid nanodrops in air.

    Science.gov (United States)

    Fernández-García, Juan; Fernández de la Mora, Juan

    2013-12-01

    The electrical mobilities of multiply-charged nanodrops of the ionic liquid 1-ethyl, 3-methylimidazolium dicyanamide (EMI-N[CN]2) were accurately measured in air at 20 °C for mass-selected clusters of composition [EMI-N[CN]2] n [EMI(+)] z , with 2 ≤ n ≤ 369 and 1 ≤ z ≤ 10. We confirm prior reports that the mobility Z of a globular ion of mass m is given approximately by the modified Stokes-Millikan law for spheres, Z  =  Z SM,mod (d m   +  d g , z, m), where d m   =  (6m/πρ)(1/3) is the nanodrop mass-diameter based on the density ρ of the liquid (corrected for the capillary compression and electrostatic deformation of the nanodrop), and d g is an effective air molecule diameter. There is however a measurable (up to 7%) and systematic z-dependent departure of Z from Z SM,mod . As theoretically expected at small ε (*) , this effect is accurately described by a simple correction factor of the form Z/Z SM,mod   =  δ(1  -  βε (*)), where kTε (*) is the potential energy due to the ion-induced dipole (polarization) attraction between a perfectly-conducting charged nanodrop and a polarized neutral gas-molecule at a distance (d m   +  d g )/2 from its center. An excellent fit of this model to hundreds of data points is found for d g ≈ 0.26 nm, β ≈ 0.36, and δ ≈ 0.954. Accounting for the effect of polarization decreases d g considerably with respect to values inferred from earlier nanodrop measurements that ignored this effect. In addition, and in spite of ambiguities in the mobility calibration scale, the measured constant δ smaller than unity increases Millikan's drag enhancement factor from the accepted value ξ m ≈ 1.36 to the new value ξ ≈ ξ m /δ ≈ 1.42  ± 0.03.

  12. Measuring the Effect of Ion-Induced Drift-Gas Polarization on the Electrical Mobilities of Multiply-Charged Ionic Liquid Nanodrops in Air

    Science.gov (United States)

    Fernández-García, Juan; Fernández de la Mora, Juan

    2013-12-01

    The electrical mobilities of multiply-charged nanodrops of the ionic liquid 1-ethyl, 3-methylimidazolium dicyanamide (EMI-N[CN]2) were accurately measured in air at 20 °C for mass-selected clusters of composition [EMI-N[CN]2] n [EMI+] z , with 2 ≤ n ≤ 369 and 1 ≤ z ≤ 10. We confirm prior reports that the mobility Z of a globular ion of mass m is given approximately by the modified Stokes-Millikan law for spheres, Z = Z SM, mod ( d m + d g , z, m), where d m = (6 m/ πρ)1/3 is the nanodrop mass-diameter based on the density ρ of the liquid (corrected for the capillary compression and electrostatic deformation of the nanodrop), and d g is an effective air molecule diameter. There is however a measurable (up to 7 %) and systematic z-dependent departure of Z from Z SM,mod . As theoretically expected at small ɛ * , this effect is accurately described by a simple correction factor of the form Z/ Z SM, mod = δ(1 - βɛ *), where kTɛ * is the potential energy due to the ion-induced dipole ( polarization) attraction between a perfectly-conducting charged nanodrop and a polarized neutral gas-molecule at a distance ( d m + d g )/2 from its center. An excellent fit of this model to hundreds of data points is found for d g ≈ 0.26 nm, β ≈ 0.36, and δ ≈ 0.954. Accounting for the effect of polarization decreases d g considerably with respect to values inferred from earlier nanodrop measurements that ignored this effect. In addition, and in spite of ambiguities in the mobility calibration scale, the measured constant δ smaller than unity increases Millikan's drag enhancement factor from the accepted value ξ m ≈ 1.36 to the new value ξ ≈ ξ m / δ ≈ 1.42 ± 0.03.

  13. The Maritime Infrastructure Recovery Plan for the National Strategy for Maritime Security

    National Research Council Canada - National Science Library

    2006-01-01

    ...). The NMSP is a Maritime Transportation Security Act plan that addresses the restoration of domestic cargo flow following a security incident that occurs under, in, on, or adjacent to waters subject...

  14. Maritime DC Microgrids - A Combination of Microgrid Technologies and Maritime Onboard Power System for Future Ships

    DEFF Research Database (Denmark)

    Jin, Zheming; Savaghebi, Mehdi; Quintero, Juan Carlos Vasquez

    2016-01-01

    alternative to the conventional AC power systems in the field of future maritime applications. Moreover, the inevitable cabin structure of maritime applications naturally separate the large-scale power system into several zonal parts. Furthermore, it is expected that the zonal parts can maintain autonomous......DC power distribution system is being considered as an attractive alternative to its traditional AC counterpart in many fields of applications and, in particular, for maritime onboard power systems. The adoption of DC power architecture would bring a broad range of benefits to the onboard power...... and coordination methods, and specific issues of maritime onboard power system, fuel efficiency optimization and systemic reconfiguration are outlined, referring to state-of-the-art realizations as well as to novel concept designs presently under development and investigation....

  15. Enforcing order : Territorial reach and maritime piracy

    NARCIS (Netherlands)

    Daxecker, U.; Prins, B.C.

    2015-01-01

    Existing studies of piracy focus attention on the institutional determinants of maritime piracy, but neglect variation in governments’ reach over territory. We argue that the effect of state capacity on piracy is a function of states’ ability to extend authority over the country’s entire territory.

  16. Green maritime transportation: Market based measures

    DEFF Research Database (Denmark)

    Psaraftis, Harilaos N.

    2016-01-01

    The purpose of this chapter is to introduce the concept of Market Based Measures (MBMs) to reduce Green House Gas (GHG) emissions from ships, and review several distinct MBM proposals that have been under consideration by the International Maritime Organization (IMO). The chapter discusses...

  17. Green maritime transportation: Speed and route optimization

    DEFF Research Database (Denmark)

    Psaraftis, Harilaos N.; Kontovas, Christos A.

    2015-01-01

    Among the spectrum of logistics-based measures for green maritime transportation, this chapter focuses on speed optimization. This involves the selection of an appropriate speed by the vessel, so as to optimize a certain objective. As ship speed is not fixed, depressed shipping markets and/or high...

  18. Comprehensive review of the maritime safety regimes.

    NARCIS (Netherlands)

    S. Knapp (Sabine); Ph.H.B.F. Franses (Philip Hans)

    2007-01-01

    textabstractThis report presents a comprehensive review of the maritime safety regimes and provides recommendations on how to improve the system. The results show a complex legal framework which generates a high amount of inspections and overlapping of inspection areas where no cross-recognition is

  19. Submarine Telecommunication Cables in Disputed Maritime Areas

    NARCIS (Netherlands)

    van Logchem, Youri

    2014-01-01

    There are a considerable number of maritime areas where no boundary exists, or where a boundary is delimited only in part. This article deals with the issue of submarine telecommunication cables, which are sometimes placed on the seabed or buried in the subsoil of areas that are claimed by multiple

  20. 77 FR 31479 - National Maritime Day, 2012

    Science.gov (United States)

    2012-05-25

    ... global marketplace. On National Maritime Day, we pay tribute to all those who have served and sacrificed... our businesses here at home, the United States Merchant Marine will continue to play a vital role in driving progress and prosperity in communities across our country. Today, we commemorate that important...

  1. 76 FR 29989 - National Maritime Day, 2011

    Science.gov (United States)

    2011-05-24

    ... members, and citizens around the world. On National Maritime Day, we honor their invaluable contributions... across the world and aiding our military at war. During World War II, Merchant Marines were critical in... skilled employment for American workers, contributing billions of dollars to our economy. It is also a...

  2. Technology Foresight in Emerging Maritime & Marine Economies

    DEFF Research Database (Denmark)

    Spaniol, Matthew Jon; Rohrbeck, René

    platform developed by the PERISCOPE Project, funded by EU Interreg funds and driven by maritime and marine cluster organizations in the North Sea Region. The Radar leverages the knowledge of the industry professionals, captures weak signals for technology, and validates them through the research network...

  3. Maritime drug interdiction in international law

    NARCIS (Netherlands)

    Kruit, P.J.J. van der

    2007-01-01

    The study focuses on the interdiction of trafficking in illicit drugs at sea as one part of the general problem of illicit drug trafficking. More specifically, the study focuses on the legal framework for the interdiction of illicit maritime drug trafficking under international law. Firstly, the

  4. The maritime law of the Baltic Sea

    DEFF Research Database (Denmark)

    Jahnke, Carsten

    2017-01-01

    Before the end of the 13th century, the Baltic seamen created a law system codi ed in Bjarkey and Söderköping and then Schleswig laws. The increasing Germanic domination of Baltic navigation resulted in the creation of speci c maritime laws for Lübeck and Hamburg before the introduction of the Laws...

  5. Pecheries maritimes artisanales Togolaises : analyse des ...

    African Journals Online (AJOL)

    Pecheries maritimes artisanales Togolaises : analyse des debarquements et de la valeur commerciale des captures. K.M. Sedzro, E.D. Fiogbe, E.B. Guerra. Abstract. Description du sujet : La connaissance scientifique de la pression des pêcheries artisanales sur les ressources marines togolaises s'avère nécessaire pour ...

  6. The safety features of an integrated maritime reactor

    International Nuclear Information System (INIS)

    Miyakoshi, Junichi; Yamada, Nobuyuki; Kuwahara, Shin-ichi

    1975-01-01

    The EFDR-80, a typical integrated maritime reactor, which is being developed in West Germany is outlined. The safety features of the integrated maritime reactor are presented with the analysis of reactor accidents and hazards, and are compared with those of the separated maritime reactor. Furthermore, the safety criteria of maritime reactors in Japan and West Germany are compared, and some of the differences are presented from the viewpoint of reactor design and safety analysis. In this report the authors express an earnest desire that the definite and reasonable safety criteria of the integrated maritime reactor should be established and that the safety criteria of the nuclear ship should be standardized internationally. (auth.)

  7. CORE COMPETENCES OF PIRACY AND MARITIME TERRORISM

    Directory of Open Access Journals (Sweden)

    Piotr Gawliczek

    2016-10-01

    Full Text Available The intensity of the attacks, the level of violence, the scale of destruction in the maritime areas forces creation of certain security conditions. Recognizing the enemy - piracy and maritime terrorism - by identifying their resources, skills and competences is necessary action in building the safety of vessels and maritime infrastructure. Building competence of terrorist organization and maritime piracy requires the involvement of many interrelated resources and their proper coordination. It seems that, as in a business model, in these criminal organizations there are similar resources, skills and competences that determine the advantage and strategic value of the organization. However, the weight of each factor is different. The same assumption can be related to piracy and the activities of the terrorist organization at sea. The results of the study suggest that the main sources of success of analyzed criminal organizations generate harm for national security. In the case of piracy, they result from the following spheres: human capital, attributable to the skills capital; structural capital, belonging to innovation capital; relational capital, depending on customers' capital. As for terrorist activities, they stem from the spheres of: human capital, belonging to social capital; structural capital, attributable to the process capital; relational capital and determined by capital of standing out. In summary, this article is intended to show a terrorist organization and maritime piracy through the prism of resources theory, skills and competences of strategic management. As one of the first, it places many questions, formulate some theses in the area of competences of organizations. Answering the questions, verification of posed theses, requires also in-depth research that will be published in subsequent works.

  8. Air

    CERN Document Server

    Rivera, Andrea

    2017-01-01

    Air is all around us. Learn how it is used in art, technology, and engineering. Five easy-to-read chapters explain the science behind air, as well as its real-world applications. Vibrant, full-color photos, bolded glossary words, and a key stats section let readers zoom in even deeper. Aligned to Common Core Standards and correlated to state standards. Abdo Zoom is a division of ABDO.

  9. Air

    International Nuclear Information System (INIS)

    Gugele, B.; Scheider, J.; Spangl, W.

    2001-01-01

    In recent years several regulations and standards for air quality and limits for air pollution were issued or are in preparation by the European Union, which have severe influence on the environmental monitoring and legislation in Austria. This chapter of the environmental control report of Austria gives an overview about the legal situation of air pollution control in the European Union and in specific the legal situation in Austria. It gives a comprehensive inventory of air pollution measurements for the whole area of Austria of total suspended particulates, ozone, volatile organic compounds, nitrogen oxides, sulfur dioxide, carbon monoxide, heavy metals, benzene, dioxin, polycyclic aromatic hydrocarbons and eutrophication. For each of these pollutants the measured emission values throughout Austria are given in tables and geographical charts, the environmental impact is discussed, statistical data and time series of the emission sources are given and legal regulations and measures for an effective environmental pollution control are discussed. In particular the impact of fossil-fuel power plants on the air pollution is analyzed. (a.n.)

  10. Polarization-dependent Character of 1x3 Beam Splitter Using Self-Imaging Phenomena in Air-Slab PhCW

    DEFF Research Database (Denmark)

    Zhang, Min; Malureanu, Radu; Kristensen, Martin

    2010-01-01

    A 1x3 beam splitter in PhCWs using multi-mode interference (MMI) based on self-imaging principle is investigated. The 1x3 splitter is polarization-dependent. The total TE-polarized transmission of the 1x3 splitter is almost equal to the corresponding length of W1 PhCW. The TE-polarized input power...

  11. Maritime cleantech entrepreneurship in Frederikshavn, Denmark

    DEFF Research Database (Denmark)

    Hermann, Roberto Rivas; Lunde-Christensen, Jeanne Christine; Riisgaard, Henrik

    2012-01-01

    by frontrunner shipyards and its interlinked maritime-servicing clusters and networks. Yet, in order to exploit these opportunities, conventional business literature usually refers to information availability and competence building. Yet, in the blossoming literature of eco-entrepreneurship both topics...... research question: What is the current role of brokers and intermediaries in facilitating information concerning green shipping practices? The paper's main argument is that information availability, facilitated by public and private networks is a requirement for potential maritime cleantech eco-entrepreneurship....... In this article, eco-entrepreneurship is understood as offering new services and products (either by an existing firm or by a start-up). Such services and products may address an environmental externality. The following are the case study's main results: - Two broker/intermediaries contribute to information flow...

  12. Maritime Cast Shop Integrated Improvement Plan

    Science.gov (United States)

    2010-08-20

    driven, customer-responsive iron foundry specializing in prototype and low-to- medium volume production castings. SLF completed ISO 9001 :2000...completed ISO 9001 :2000 certification in November of 2002 and has in-house metallurgical testing capabilities using an in-house spectrograph and tensile...Maritime Cast Shop Integrated Improvement Plan Contract # SP4701-08-C-0026 Final Report Prepared for Defense Logistics Agency under the

  13. Statistical characteristics of acoustic signals reflected from maritime vessels during contintuous emission

    Science.gov (United States)

    Guzhavina, D. V.; Gulin, E. P.

    2013-07-01

    The paper presents the results of experimental studies of fluctuations in echo signals from maritime vessels under conditions of near echo ranging with continuous targeted emission and reception at a frequency of 80 kHz. Data have been obtained on the fluctuation intensity, distribution functions, spectra, and time coherency fluctuations of echo signals at various vessel velocities for different reflecting and scattering areas of vessel hulls, different areas of the scattering layer of air bubbles formed at the hull of a moving vessel, and the cloud of air bubbles remaining behind the stern after a vessel has passed.

  14. Characteristic and factors of competitive maritime industry clusters in Indonesia

    Science.gov (United States)

    Marlyana, N.; Tontowi, A. E.; Yuniarto, H. A.

    2017-12-01

    Indonesia is situated in the strategic position between two oceans therefore is identified as a maritime state. The fact opens big opportunity to build a competitive maritime industry. However, potential factors to boost the competitive maritime industry still need to be explored. The objective of this paper is then to determine the main characteristics and potential factors of competitive maritime industry cluster. Qualitative analysis based on literature review has been carried out in two aspects. First, benchmarking analysis conducted to distinguish the most relevant factors of maritime clusters in several countries in Europe (Norway, Spain, South West of England) and Asia (China, South Korea, Malaysia). Seven key dimensions are used for this benchmarking. Secondly, the competitiveness of maritime clusters in Indonesia was diagnosed through a reconceptualization of Porter’s Diamond model. There were four interlinked of advanced factors in and between companies within clusters, which can be influenced in a proactive way by government.

  15. INMARSAT - The International Maritime Satellite Organization: Origins and structure

    Science.gov (United States)

    Doyle, S. E.

    1977-01-01

    The third session of the International Conference on the Establishment of an International Maritime Satellite System established the International Maritime Satellite Organization (INMARSAT) in 1976. Its main functions are to improve maritime communications via satellite, thereby facilitating more efficient emergency communications, ship management, and maritime public correspondence services. INMARSAT's aims are similar to those of the Intergovernmental Maritime Consultative Organization (IMCO), the main United Nations organization dealing with maritime affairs. The specific functions of INMARSAT have been established by an Intersessional Working Group (IWG) which met three times between general conference meetings. Initial investment shares for the creation of INMARSAT were shared by the United States (17%), the United Kingdom (12%), the U.S.S.R. (11%), Norway (9.50%), Japan (8.45%), Italy (4.37%), and France (3.50%).

  16. The Aegis BMD Global Enterprise: A High End Maritime Partnership

    Science.gov (United States)

    2016-04-13

    Australia in the near future—in a high- end Aegis BMD Global Maritime Partnership . A BMD IMPERATIVE The need for effective BMD has increased in the twenty...Maritime Partnership Brad Hicks, George Galdorisi, and Scott C. Truver or more than three decades, beginning soon after the end of World War II, the...thousand-ship navy”—now transformed into a Global Maritime Partnership (GMP), in which nations and navies increasingly work together to ensure

  17. Research on risk assessment for maritime transport of radioactive materials. Preparation of maritime accident data for risk assessment

    International Nuclear Information System (INIS)

    Odano, Naoteru; Sawada, Ken-ichi; Mochiduki, Hiromitsu; Hirao, Yoshihiro; Asami, Mitsufumi

    2010-01-01

    Maritime transport of radioactive materials has been playing an important role in the nuclear fuel cycle in Japan. Due to recent increase of transported radioactive materials and diversification of transport packages with enlargement of nuclear research, development and utilization, safety securement for maritime transport of radioactive materials is one of important issues in the nuclear fuel cycle. Based squarely on the current circumstances, this paper summarizes discussion on importance of utilization of results of risk assessment for maritime transport of radioactive materials. A plan for development of comprehensive methodology to assess risks in maritime transport of radioactive materials is also described. Preparations of database of maritime accident to be necessary for risk assessment are also summarized. The prepared data could be utilized for future quantitative risk assessment, such as the event trees and fault trees analyses, for maritime transport of radioactive materials. The frequency of severe accident that the package might be damaged is also estimated using prepared data. (author)

  18. 75 FR 13785 - Maritime Advisory Committee for Occupational Safety and Health (MACOSH); Request for Nominations

    Science.gov (United States)

    2010-03-23

    ... DEPARTMENT OF LABOR Occupational Safety and Health Administration Maritime Advisory Committee for... intends to recharter the Maritime Advisory Committee for Occupational Safety and Health (MACOSH). The... to occupational safety and health programs, new initiatives, and standards for the maritime...

  19. Effect of Policy Analysis on Indonesia’s Maritime Cluster Development Using System Dynamics Modeling

    Science.gov (United States)

    Nursyamsi, A.; Moeis, A. O.; Komarudin

    2018-03-01

    As an archipelago with two third of its territory consist of water, Indonesia should address more attention to its maritime industry development. One of the catalyst to fasten the maritime industry growth is by developing a maritime cluster. The purpose of this research is to gain understanding of the effect if Indonesia implement maritime cluster policy to the growth of maritime economic and its role to enhance the maritime cluster performance, hence enhancing Indonesia’s maritime industry as well. The result of the constructed system dynamic model simulation shows that with the effect of maritime cluster, the growth of employment rate and maritime economic is much bigger that the business as usual case exponentially. The result implies that the government should act fast to form a legitimate cluster maritime organizer institution so that there will be a synergize, sustainable, and positive maritime cluster environment that will benefit the performance of Indonesia’s maritime industry.

  20. Regional freight information resources for market opportunities in the Great Lakes maritime transportation system : phase II.

    Science.gov (United States)

    2009-11-01

    The Great Lakes Maritime Information Delivery System (GLMIDS) is designed to facilitate the acquisition, storage, management, analysis and exchange of data between analysts and decision-makers within maritime commerce. (See http://maritime.utoledo.ed...

  1. The Use of Air Power in Joint Maritime Operations

    Science.gov (United States)

    1985-08-01

    words on paper. At best, it is the result of hard thinking, long discussions, and bloody testing . Theoretically national purpose plays no part in the... Montreaux Convention. The Black Sea fleet has no SSBNs and only 25 to 30 attack submarines, due to restriction of their peacetime passage through the...train aircrews in ship attack, sea surveillance, and mine laying.19 The Navy began testing Harpoon missiles in 1972 and accepted them for operational

  2. When Did the Swahili Become Maritime?

    Science.gov (United States)

    Fleisher, Jeffrey; Lane, Paul; LaViolette, Adria; Horton, Mark; Pollard, Edward; Quintana Morales, Eréndira; Vernet, Thomas; Christie, Annalisa; Wynne-Jones, Stephanie

    2015-03-01

    In this article, we examine an assumption about the historic Swahili of the eastern African coast: that they were a maritime society from their beginnings in the first millennium C.E. Based on historical and archaeological data, we suggest that, despite their proximity to and use of the sea, the level of maritimity of Swahili society increased greatly over time and was only fully realized in the early second millennium C.E. Drawing on recent theorizing from other areas of the world about maritimity as well as research on the Swahili, we discuss three arenas that distinguish first- and second-millennium coastal society in terms of their maritime orientation. These are variability and discontinuity in settlement location and permanence; evidence of increased engagement with the sea through fishing and sailing technology; and specialized architectural developments involving port facilities, mosques, and houses. The implications of this study are that we must move beyond coastal location in determining maritimity; consider how the sea and its products were part of social life; and assess whether the marine environment actively influences and is influenced by broader patterns of sociocultural organization, practice, and belief within Swahili and other societies. [ maritime, fishing and sailing, long-distance trade, Swahili, eastern Africa ]. En este artículo, evaluamos la hipótesis de que los pueblos Swahili de la costa oriental africana fueron una sociedad marítima a partir del primer milenio E.C. Basados en información histórica y arqueológica, proponemos que la asociación de la sociedad Swahili con el mar incrementó considerablemente con el tiempo y se manifestó de una forma significativa particularmente desde principios del segundo milenio E.C. Utilizando teorías recientes sobre maritimidad en otras áreas del mundo, así como investigaciones sobre los Swahili, discutimos tres temas que marcan las diferencias del nivel de orientación marítima de esta

  3. Comprehensive Maritime Awareness (CMA) - Joint Capabilities Technology Demonstration (JCTD), FY 06-09

    National Research Council Canada - National Science Library

    Dwyer, Chris

    2006-01-01

    ...) vision is to share maritime shipping information and tracks throughout the world to deter use of commercial maritime shipping for terrorism, WMD proliferation, drugs, piracy, and human trafficking...

  4. POSSIBILITIES OF UAS FOR MARITIME MONITORING

    Directory of Open Access Journals (Sweden)

    A. Klimkowska

    2016-06-01

    Full Text Available In the last few years, Unmanned Aircraft Systems (UAS have become more important and its use for different application is appreciated. At the beginning UAS were used for military purposes. These successful applications initiated interest among researchers to find uses of UAS for civilian purposes, as they are alternative to both manned and satellite systems in acquiring high-resolution remote sensing data at lower cost while long flight duration. As UAS are built from many components such as unmanned aerial vehicle (UAV, sensing payloads, communication systems, ground control stations, recovery and launch equipment, and supporting equipment, knowledge about its functionality and characteristics is crucial for missions. Therefore, finding appropriate configuration of all elements to fulfill requirements of the mission is a very difficult, yet important task. UAS may be used in various maritime applications such as ship detection, red tide detection and monitoring, border patrol, tracking of pollution at sea and hurricane monitoring just to mention few. One of the greatest advantages of UAV is their ability to fly over dangerous and hazardous areas, where sending manned aircraft could be risky for a crew. In this article brief description of aerial unmanned system components is introduced. Firstly characteristics of unmanned aerial vehicles are presented, it continues with introducing inertial navigation system, communication systems, sensing payloads, ground control stations, and ground and recovery equipment. Next part introduces some examples of UAS for maritime applications. This is followed by suggestions of key indicators which should be taken into consideration while choosing UAS. Last part talks about configuration schemes of UAVs and sensor payloads suggested for some maritime applications.

  5. Calibration of Airborne Multiangle SpectroPolarimetric Imager (AirMSPI) polarization measurements, and in-flight comparisons with the Research Scanning Polarimeter (RSP) and the Spectropolarimeter for Planetary EXploration (SPEX)

    Science.gov (United States)

    van Harten, G.; Diner, D. J.; Rheingans, B. E.; Daugherty, B. J.; Xu, F.; Bull, M. A.; Tkatcheva, I. N.; Garay, M. J.; Seidel, F.; Chipman, R. A.; Smit, M.

    2016-12-01

    The Airborne Multiangle SpectroPolarimetric Imager (AirMSPI) is a remote sensing instrument for the characterization of atmospheric aerosols and clouds. AirMSPI, flying onboard the NASA ER-2 aircraft at 20 km altitude, participates in field campaigns since 2013, including ORACLES (2016). The pushbroom camera is mounted on a programmable, motorized gimbal for multi-angle observations at 10x10 m2 resolution. Eight spectral bands within 355-935 nm are recorded, 3 of which also measure linear polarization. Photoelastic modulators (PEMs) encode the polarized and total intensities in each polarimetric pixel as the amplitude and offset of a modulated intensity pattern, such that the ratio of the two is insensitive to pixel-to-pixel differences. This technique, developed to enable the high-accuracy imaging polarimetry required for aerosol species discrimination, will also be applied in the Multi-Angle Imager for Aerosols (MAIA) satellite instrument. We present the calibration and accuracy validation of AirMSPI polarization measurements. The main calibration, describing the instrument's response to any degree (DoLP) and angle of linear polarization, is performed in the lab using a recently updated, carefully designed and characterized polarization state generator (PSG-2). Validation measurements using an independent polarimeter show agreement in DoLP to within 0.001 for several DoLPs across the 0-1 range. The PEMs' retardances and phases, which are different and not necessarily stable in flight, are extracted from measurements of the on-board validator, a partially polarized light source located inside the instrument housing, which is viewed before and after each target. Although this calibration does not rely on the validator's DoLP, and the validator was not designed for DoLP calibration, the frequent measurements of its DoLP provide an upper limit for AirMSPI's in-flight polarimetric stability, which is 0.001. A correction for the actual PEM retardances and phases in the

  6. Evaluation of tracking methods for maritime surveillance

    Science.gov (United States)

    Fischer, Yvonne; Baum, Marcus; Flohr, Fabian; Hanebeck, Uwe D.; Beyerer, Jürgen

    2012-06-01

    In this article, we present an evaluation of several multi-target tracking methods based on simulated scenarios in the maritime domain. In particular, we consider variations of the Joint Integrated Probabilistic Data Association (JIPDA) algorithm, namely the Linear Multi-Target IPDA (LMIPDA), Linear Joint IPDA (LJIPDA), and Markov Chain Monte Carlo Data Association (MCMCDA). The algorithms are compared with respect to an extension of the Optimal Subpattern Assignment (OSPA) metric, the Hellinger distance and further performance measures. As no single algorithm is equally well fitted to all tested scenarios, our results show which algorithms fits best for specific scenarios.

  7. MARD – Maritime Academic Resource Database

    Directory of Open Access Journals (Sweden)

    Bogumil Laczynski

    2014-12-01

    Full Text Available IAMU (International Association of Maritime Universities was established fifteen years ago. For this moment IAMU content close to 60 Members Institution. One of the research activities in years 2012- 2014 was: preparing the algorithm for collect and analyze the necessary information and convert it into Matrix form. Both: IAMU MEMBERS INSTITUTION DATABASE and HUMAN RESOURCE DATABASE include comparison indicators such as academic degree, teaching subjects, qualifications, research experience and so on. In opinion of group of researchers new established database should be very useful and helpful in field of cooperation between IAMU Members Institutions.

  8. Technology Foresight in Emerging Maritime & Marine Economies

    DEFF Research Database (Denmark)

    Spaniol, Matthew Jon; Rohrbeck, René

    the ambition, methodology and expected contribution of the North Sea Opportunity Radar to chart said developments. The Radar builds on foresight methodology and leverages international crowdsourcing efforts involving stakeholders from Netherlands, Denmark, Germany, Sweden, UK, and Norway. The Radar is an open...... platform developed by the PERISCOPE Project, funded by EU Interreg funds and driven by maritime and marine cluster organizations in the North Sea Region. The Radar leverages the knowledge of the industry professionals, captures weak signals for technology, and validates them through the research network...

  9. Haiyang Qiangguo: China as a Maritime Power

    Science.gov (United States)

    2016-03-15

    solar power from the sea, pharmaceuticals derived from marine animal and plant products, and even maritime tourism .58 To date, most of this activity...increasingly made use of its hospital ship and has sent it on humanitarian missions in both the Indian Ocean and the Caribbean.86  Several sources also...85 See for example, Liu Cigui, “Striving to Realize the Historical Leap ”. 86 Kyle Mizokami. “Peace Ark: Onboard China’s Hospital Ship.” USNI News

  10. Polarization-preserving holey fibers

    DEFF Research Database (Denmark)

    Broeng, Jes; Mogilevtsev, Dmitri; Libori, Stig E. Barkou

    2001-01-01

    In this work we suggest and discuss a microstructure of air capillaries with elliptical cross-section in a tread of glass that gives opportunity for Creation of polarization-preserving fiber with very small beat length between the fundamental modes of different polarization...

  11. 75 FR 82039 - National Maritime Security Advisory Committee; Meeting

    Science.gov (United States)

    2010-12-29

    ... Security Advisory Committee (NMSAC) will meet in Washington, DC to discuss various issues relating to national maritime security. This meeting will be open to the public. DATES: The Committee will meet on... DEPARTMENT OF HOMELAND SECURITY Coast Guard [USCG-2010-1005] National Maritime Security Advisory...

  12. 75 FR 38536 - National Maritime Security Advisory Committee; Meeting

    Science.gov (United States)

    2010-07-02

    ... Security Advisory Committee (NMSAC) will meet in Washington, DC to discuss various issues relating to national maritime security. This meeting will be open to the public. DATES: The Committee will meet on... DEPARTMENT OF HOMELAND SECURITY Coast Guard [USCG-2010-0586] National Maritime Security Advisory...

  13. Uncertainty in Fleet Renewal: A Case from Maritime Transportation

    DEFF Research Database (Denmark)

    Pantuso, Giovanni; Fagerholt, Kjetil; Wallace, Stein W.

    2016-01-01

    This paper addresses the fleet renewal problem and particularly the treatment of uncertainty in the maritime case. A stochastic programming model for the maritime fleet renewal problem is presented. The main contribution is that of assessing whether or not better decisions can be achieved by usin...

  14. Small maritime target detection through false color fusion

    NARCIS (Netherlands)

    Toet, A.; Wu, T.

    2008-01-01

    We present an algorithm that produces a fused false color representation of a combined multiband IR and visual imaging system for maritime applications. Multispectral IR imaging techniques are increasingly deployed in maritime operations, to detect floating mines or to find small dinghies and

  15. 77 FR 1710 - National Maritime Security Advisory Committee

    Science.gov (United States)

    2012-01-11

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard [USCG-2011-0975] National Maritime Security Advisory... Meeting; correction. SUMMARY: The Coast Guard published in the Federal Register of January 9, 2012, a notice announcing a National Maritime Security Advisory Committee (NMSAC) public meeting on January 18-19...

  16. 78 FR 27032 - National Maritime Week Tugboat Races, Seattle, WA

    Science.gov (United States)

    2013-05-09

    ... Maritime Week Tugboat Races, Seattle, WA AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of... Maritime Week Tugboat Races in Elliott Bay, WA from 12 p.m. until 4:30 p.m. on May 11, 2013. This action is... these types of races which includes large wakes. During the enforcement period, no person or vessel may...

  17. 76 FR 22033 - National Maritime Week Tugboat Races, Seattle, WA

    Science.gov (United States)

    2011-04-20

    ... Maritime Week Tugboat Races, Seattle, WA AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of... Maritime Week Tugboat Races in Elliott Bay, WA from 12 p.m. through 4:30 p.m. on May 14, 2011. This action... associated with these types of races which includes large wakes. During the enforcement period, no person or...

  18. 77 FR 23120 - National Maritime Week Tugboat Races, Seattle, WA

    Science.gov (United States)

    2012-04-18

    ... Maritime Week Tugboat Races, Seattle, WA AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of... Maritime Week Tugboat Races in Elliott Bay, WA from 12 p.m. through 4:30 p.m. on May 12, 2012. This action... associated with these types of races which includes large wakes. During the enforcement period, no person or...

  19. 75 FR 24400 - National Maritime Week Tugboat Races, Seattle, WA

    Science.gov (United States)

    2010-05-05

    ... Maritime Week Tugboat Races, Seattle, WA AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of... Maritime Week Tugboat Races in Elliott Bay, WA on May 8, 2010. This action is necessary to ensure the safety of all participants and spectators from the inherent dangers associated with these types of races...

  20. A Blue BRICS, Maritime Security, and the South Atlantic

    Directory of Open Access Journals (Sweden)

    François Vreÿ

    Full Text Available Abstract Analysts frequently label the BRICS grouping of states (Brazil, India, Russia, China, and South Africa as primarily an economic club emphasising economic performances as primary objectives. Co-operation of international groupings are rarely, if ever, set within the context of their access to maritime interests, security, and benefits. A second void stems from the lack of emphasis upon the economic benefits of secured maritime domains. In this vein, a common, but neglected aspect of the BRICS grouping’s power and future influence resides in their maritime domains, the value of which ultimately depends upon the responsible governance and use of ocean territories. The maritime interests of BRICS countries only become meaningful if reinforced by maritime security governance and co-operation in the respective oceans. Presently China and India seem to dominate the maritime stage of BRICS, but the South Atlantic is an often overlooked space. For BRICS the value of the South Atlantic stems from how it secures and unlocks the potential of this maritime space through co-operative ventures between Brazil, South Africa as a late BRICS partner, and West African littoral states in particular. Unfortunately, BRICS holds its own maritime tensions, as member countries also pursue competing interests at sea.

  1. The Role and relevance of mathematics in the maritime industry ...

    African Journals Online (AJOL)

    This study was aimed at investigating the relevance (utility value) of mathematics in the changing trends of Maritime Business, Education and Training. The paper discusses the various domains of occupational practice where maritime education and training practitioners encounter the use and application of mathematics.

  2. Semi-automatic ontology extension in the maritime domain

    NARCIS (Netherlands)

    de Vries, G.; Malaisé, V.; van Someren, M.; Adriaans, P.; Schreiber, G.

    2008-01-01

    One of the tasks of a maritime safety and security (MSS) system is to map incoming observations in the form of sensor data onto existing maritime domain knowledge. This domain knowledge is modeled in an ontology. The sensor data contains information on ship trajectories, labeled with ship types from

  3. Potential effects of ultraviolet radiation reduction on tundra nitrous oxide and methane fluxes in maritime Antarctica.

    Science.gov (United States)

    Bao, Tao; Zhu, Renbin; Wang, Pei; Ye, Wenjuan; Ma, Dawei; Xu, Hua

    2018-02-27

    Stratospheric ozone has begun to recover in Antarctica since the implementation of the Montreal Protocol. However, the effects of ultraviolet (UV) radiation on tundra greenhouse gas fluxes are rarely reported for Polar Regions. In the present study, tundra N 2 O and CH 4 fluxes were measured under the simulated reduction of UV radiation in maritime Antarctica over the last three-year summers. Significantly enhanced N 2 O and CH 4 emissions occurred at tundra sites under the simulated reduction of UV radiation. Compared with the ambient normal UV level, a 20% reduction in UV radiation increased tundra emissions by an average of 8 μg N 2 O m -2 h -1 and 93 μg CH 4 m -2 h -1 , whereas a 50% reduction in UV radiation increased their emissions by an average of 17 μg N 2 O m -2 h -1 and 128 μg CH 4 m -2 h -1 . No statistically significant correlation (P > 0.05) was found between N 2 O and CH 4 fluxes and soil temperature, soil moisture, total carbon, total nitrogen, NO 3 - -N and NH 4 + -N contents. Our results confirmed that UV radiation intensity is an important factor affecting tundra N 2 O and CH 4 fluxes in maritime Antarctica. Exclusion of the effects of reduced UV radiation might underestimate their budgets in Polar Regions with the recovery of stratospheric ozone.

  4. New Sino-EU Cooperation on the Maritime Silk Road

    Directory of Open Access Journals (Sweden)

    Wang Yiwei

    2015-12-01

    Full Text Available The new Silk Road Economic Belt and 21st Century Maritime Silk Road (OBOR is a historic opportunity for further Sino-EU maritime cooperation, as both sides have much to share and more to build in terms of vision, policies, and security, making it possible for a new line in the already-thriving exchanges across the continent. The two sides will carry on the China-EU 2020 Strategic Agenda for Cooperation with fusion of maritime strategies and joint efforts for safer sea passage, and may proceed to a Maritime Cooperative Organization (MCO when needed to build not only a participative maritime order, but also next-gen cooperation between Asia, Africa, and Europe. Yet this still needs a well-assorted toolset of bi- and multilateral cooperation backed by strong policy and theory, to boost consensus and action by management of differences.

  5. OPERATION OF SEAGOING CRUISE SHIPS IN POLAR WATERS OF THE ANTARCTICA

    Directory of Open Access Journals (Sweden)

    Adam WOLSKI

    2017-09-01

    Full Text Available As maritime tourism has been developing dynamically in recent years, including cruises into polar areas, the author attempts to identify factors essential for the safety of navigation in those sea areas, with a specific focus on the waters of the Antarctica. The presented methods of navigation take account of hazards that are typical in polar waters. All the considerations are based on the guidelines of the Polar Code.

  6. Maritime Electric Co. Ltd. annual report, 1991

    International Nuclear Information System (INIS)

    1991-01-01

    Maritime Electric Company is a Canadian investor-owned electric utility based in Prince Edward Island. Established in 1918, the Company owns and operates a fully integrated system providing for the generation, transmission, and distribution of electricity throughout the Island. Maritime Electric operates generating plants in Charlottetown and Borden, and has an equity interest in NB Power's unit in Dalhousie, New Brunswick. Its 4,400 km distribution system and 560 km transmission system are linked to the mainland power grid by two submarine cables between the Island and the province of New Brunswick. This report describes the Company's operations, power production and sales for the year, with relevant statistical information. Financial statements are also included. In 1991 increases in operating revenue were lower than forecast due to the recession. Tight control of expenses, together with higher rates allowed a satisfactory rate of return. Earnings per share were $1.79 compared to $1.61 in 1990. Demand side management initiatives were enhanced, and a customer survey indicated satisfaction with service. Plant life extension programs continued at the Charlottetown generating station

  7. Why Not Eminently Maritime UN Peacekeeping Operations?

    Directory of Open Access Journals (Sweden)

    André Panno Beirão

    Full Text Available Abstract Although the UN Charter does not explicitly provide for Peacekeeping Operations (PKOs, they have become one of the UN’s most important means of preserving peace and international security. Some of the greatest threats to international peace and security do not occur on ‘UN Member States territory’, but at sea. The internationally significant and long-standing phenomenon of maritime piracy initially led to international action off the coast of Somalia, but other regions affected by criminal acts at sea (including the Straits of Malacca, the Gulf of Guinea and the Mediterranean Sea are reinforcing the need for international action. In most of these situations, the UN has not acted directly, but called on multilateral or regional bodies to do so. Earlier experiences in PKOs at sea, in Cambodia, East Timor, Haiti, and most recently in Lebanon, undertaken by the UN Interim Force in Lebanon (UNIFIL, begin to provide a basis for building a naval PKO doctrine. This article argues that it is legitimate for the UN to undertake direct action when facing threats to maritime security, making use of an empirical example and suggests that new instances of criminal acts at sea, such as those in the Gulf of Guinea, may best be dealt with under a direct UN mandate.

  8. CONCESSIONS ON THE MARITIME DOMAIN – THE RELATION OF THE CONCESSIONS ACT AND THE MARITIME DOMAIN AND SEAPORTS ACT

    Directory of Open Access Journals (Sweden)

    Frane Staničić

    2017-04-01

    Full Text Available In this paper, the authors analyse the legislative framework of concessions on maritime domain. The Maritime Domain and Seaports Act passed in 2003 prescribes concessions on maritime domain. In the meantime, two new general acts regarding concessions were passed in 2008, and in 2012 and the third general Concessions Act is in legislative procedure now. The authors will, by the methods of comparison and analysis, show that, unlike other laws governing concessions, the Maritime Domain and Seaports Act has never been aligned with the general law, which causes problems in practice and in its implementation. The frequent dilemmas regarding the question refer to the choice of norms to implement. The dilemma is whether the general act is applicable in procedures of granting concessions on maritime domain. The authors show in this paper that the Maritime Domain and Seaports Act is not aligned with the Concessions Act and point to the problems in practice due to obvious misalignment of these laws. The authors suggest solutions to the noticed problems. They also argue that it is necessary to align the Maritime Domain and Seaports Act with the general law and that the Concessions Act is applicable in the concessions granting procedures on maritime domain.

  9. Polarization developments

    International Nuclear Information System (INIS)

    Prescott, C.Y.

    1993-07-01

    Recent developments in laser-driven photoemission sources of polarized electrons have made prospects for highly polarized electron beams in a future linear collider very promising. This talk discusses the experiences with the SLC polarized electron source, the recent progress with research into gallium arsenide and strained gallium arsenide as a photocathode material, and the suitability of these cathode materials for a future linear collider based on the parameters of the several linear collider designs that exist

  10. A Study of Social Networks for Maritime Education and Training

    Directory of Open Access Journals (Sweden)

    Tomoki Takimoto

    2016-09-01

    Full Text Available This study analyzes the role played by social networks in maritime education and training. The objective of this study is to investigate the shortage of seafarers in maritime global transportation, as mentioned by the BIMCO. The authors divide the processes of maritime education and training into two categories: “Maritime educational institute” and “Maritime Company.” These are not systematically connected but are found in the processes between social networks; it has the social networks to both. Therefore, teaching staff members, in their roles as job advisors in “Maritime educational institutes,” use social networks in conjunction with “Maritime companies.” The teaching staff members communicate with students using these processes. The teaching staffs are the carriers in regard to how these processes are related. This study surveyed aspects of “personality” and “social networks” pertaining to teaching staffs and quantitatively analyzed the processes related to social networks.

  11. Effects of Greenshipping to the Maritime Industry

    Directory of Open Access Journals (Sweden)

    E. A. Ogbonnaya

    2013-04-01

    Full Text Available In order to keep focus on the important agenda of sustainability which has lately become an issue of priority, the maritime industry must implement technologies on existing vessels and on those under construction so as to reduce their emissions into the environment. This study examines three potential sources of emission and also identifies a set of emission control measures that are available and could, if fully applied, reduce emission by 19.058%. With the waste heat recovery system, about 2500 kW of energy are saved, thereby increasing the efficiency to 59.11% having about 10.13% gain compared to engines without a waste heat recovery system. It is therefore recommended that the use of waste heat recovery systems should be encouraged on marine vessels to reduce the impact of noxious gasses into the atmosphere.

  12. Shipment of LLW by intercoastal maritime service

    International Nuclear Information System (INIS)

    Barbour, D.A.

    1985-01-01

    Transportation costs are a significant element of total waste disposal costs. In 1982, Nuclear Metals, Inc. (NMI) began a series of tests and investigations to examine the feasibility of using alternative modes for its low-level waste (LLW) shipments. NMI's investigations and experience have identified significant problems in transporting LLW by rail. Intercoastal maritime service, however, has been demonstrated as a safe and cost-effective way of transporting LLW from eastern seaboard generation sites to the repository at Beatty, Nevada. Intuition is an unreliable guide in this area. Waste managers need to periodically assess and compare combined transportation and burial costs for all site options to ensure that disposal operations are conducted in the most rational way

  13. Risk management of oil maritime transportation

    Energy Technology Data Exchange (ETDEWEB)

    Idelhakkar, Brahim; Hamza, F. [Universite Abdelmalek Essaadi, FSJES, Tanger (Morocco)

    2011-03-15

    The largest oil deposits discovered in the world are located in places far from developed countries that are major consumers of energy. This situation is the reason why, for two decades, huge quantities of hydrocarbons are transported everywhere in the world either by sea or by road. The oil trade and the market are subject to an inexorable competitive pricing. In reality, the age of the tanker intervenes in the decision-making process; it is often the cheapest available tonnage offered by the oldest ships that controls prices. It is therefore difficult to ensure that quality pays for; this phenomenon probably involves some risk for the maritime security as a whole: human (accidents, shipwrecks) and environmental (vegetation pollution e.g. fauna and flora), and on health. (orig.)

  14. Maritime Situational Awareness: The MARISS Experience

    Science.gov (United States)

    Margarit, G.; Tabasco, A.; Gomez, C.

    2010-04-01

    This paper presents the operational solution developed by GMV to provide support to maritime situational awareness via Earth Observation (EO) technologies. The concept falls on integrating the information retrieved from Synthetic Aperture Radar (SAR) images and transponder-based polls (AIS and similar) in an advanced GeoPortal web. The service has been designed in the framework of the MARISS project, a project conceived to help improving ship monitoring with the support of a large user segment. In this context, the interaction with official agencies has provided good feedback about system performance and its usefulness in supporting monitoring and surveillance tasks. Some representative samples are analyzed along the paper in order to validate key kernel utilities, such as ship and coastline detection, and ship classification. They justify the promotion of extended R&D activities to increase monitoring performance and to include advanced added- value tools, such as decision making and route tracking.

  15. THE THREAT OF THE CURRENT MARITIME PIRACY

    Directory of Open Access Journals (Sweden)

    JUAN C. FERNÁNDEZ SANZ

    2017-12-01

    Full Text Available This study aims to conduct an analysis of the current piracy situation -as defined in the UN Convention on the Law of the Sea 1982- and the International Maritime Organization’s armed robbery against ships concept. This analysis is focusing on those places in which it is more common the occurrence of these violations, such as Somalia and Southeast Asia. This study includes a statement of its causal factors, as well as a review of statistical and ‘modus operandi’ of those crimes. It will be also shown the identification of the geographical zones where the attacks at sea are more frequently. Finally it an study of the the answers and the naval operations that the international community has developed against those felonies, will be presented.

  16. Current Market Trends Maritime Transport Services

    Directory of Open Access Journals (Sweden)

    Florin Dan Puscaciu

    2011-10-01

    Full Text Available Maritime transport services is a fundamental component of international logistics, given that approximately 80% of world trade is carried by sea. Also, considering the spatial distribution of resources according to the processing sites and disposal of finished goods and the fact that nearly two thirds of the globe is covered by water, has led a Norwegian ship-owner, Erling Næss, to claim that "Divinity has been very generous with ship owners."In the 3rd millennium, when this study was done, there were a number of trends representing some sequels of a prior period and also a series of phenomenon of the current period. We aim to address key market segments of shipping. In order to carry out the graphs and determine the indicators we used Matlab software.

  17. Reconstructing the atmospheric concentration and emissions of CF4, C2F6 and C3F8 prior to direct atmospheric measurements, using air from polar firn and ice

    Science.gov (United States)

    Trudinger, Cathy; Etheridge, David; Sturges, William; Vollmer, Martin; Miller, Benjamin; Worton, David; Rigby, Matt; Krummel, Paul; Martinerie, Patricia; Witrant, Emmanuel; Rayner, Peter; Battle, Mark; Blunier, Thomas; Fraser, Paul; Laube, Johannes; Mani, Frances; Mühle, Jens; O'Doherty, Simon; Schwander, Jakob; Steele, Paul

    2015-04-01

    Perfluorocarbons are very potent and long-lived greenhouse gases in the atmosphere, released predominantly during aluminium production, electronic chip manufacture and refrigeration. Mühle et al. (2010) presented records of the concentration and inferred emissions of CF4 (PFC-14), C2F6 (PFC-116) and C3F8 (PFC-218) from the 1970s up to 2008, using measurements from the Cape Grim Air Archive and a suite of tanks with old Northern Hemisphere air, and the AGAGE in situ network. Mühle et al. (2010) also estimated pre-industrial concentrations of these compounds from a small number of polar firn and ice core samples. Here we present measurements of air from polar firn at four sites (DSSW20K, EDML, NEEM and South Pole) and from air bubbles trapped in ice at two sites (DE08 and DE08-2), along with recent atmospheric measurements to give a continuous record of concentration from preindustrial levels up to the present. We estimate global emissions (with uncertainties) consistent with the concentration records. The uncertainty analysis takes into account uncertainties in characterisation of the age of air in firn and ice by the use of two different (independently-calibrated) firn models (the CSIRO and LGGE-GIPSA firn models). References Mühle, J., A.L. Ganesan, B.R. Miller, P.K. Salameh, C.M. Harth, B.R. Greally, M. Rigby, L.W. Porter, L. P. Steele, C.M. Trudinger, P.B. Krummel, S. O'Doherty, P.J. Fraser, P.G. Simmonds, R.G. Prinn, and R.F. Weiss, Perfluorocarbons in the global atmosphere: tetrafluoromethane, hexafluoroethane, and octafluoropropane, Atmos. Chem. Phys., 10, 5145-5164, doi:10.5194/acp-10-5145-2010, 2010.

  18. 4M Study to Support Indonesia's Maritime Tourism Development

    Directory of Open Access Journals (Sweden)

    Achmadi Bambang Sulistiyono

    2017-12-01

    Full Text Available Indonesia as an archipelagic state with given abundant natural resources need a sustainable development in many aspects to strengthen its position in international community. Current Government vision in archipelago thinking aims at the development of maritime sector including maritime tourism and connectivity to get better equality regional development. Each region has its special potential assets and needs good concept of development design based on the regional development agenda. Smart, Merchant, and Festive are the types of conceptual design development for passenger terminal, while booster marina and enhancer marina has its role to make the development of maritime tourism locally connected internationally recognized.

  19. Polarization, political

    NARCIS (Netherlands)

    Wojcieszak, M.; Mazzoleni, G.; Barnhurst, K.G.; Ikeda, K.; Maia, R.C.M.; Wessler, H.

    2015-01-01

    Polarization has been studied in three different forms: on a social, group, and individual level. This entry first focuses on the undisputed phenomenon of elite polarization (i.e., increasing adherence of policy positions among the elites) and also outlines different approaches to assessing mass

  20. Law on the rocks: international law and China’s maritime disputes

    OpenAIRE

    Nakata, Jason S.

    2014-01-01

    Approved for public release; distribution is unlimited Maritime disputes in the Western Pacific have increased tensions among East Asian states. This thesis uses three case studies to investigate two questions: first, whether China’s maritime claims and behavior align with international legal principles governing maritime disputes, and second, which IR framework best describes China’s behavior related to its maritime disputes. The first case study examined ten legal rulings on maritime sov...

  1. Polarization holography

    DEFF Research Database (Denmark)

    Nikolova, L.; Ramanujam, P.S.

    Current research into holography is concerned with applications in optically storing, retrieving, and processing information. Polarization holography has many unique properties compared to conventional holography. It gives results in high efficiency, achromaticity, and special polarization...... properties. This books reviews the research carried out in this field over the last 15 years. The authors provide basic concepts in polarization and the propagation of light through anisotropic materials, before presenting a sound theoretical basis for polarization holography. The fabrication...... and characterization of azobenzene based materials, which remain the most efficient for the purpose, is described in detail. This is followed by a description of other materials that are used in polarization holography. An in-depth description of various applications, including display holography and optical storage...

  2. Maritime Security Cooperation in the Strait of Malacca

    National Research Council Canada - National Science Library

    Massey, Anthony S

    2008-01-01

    .... This change can be attributed to the relaxation of historical tensions, the recognition of a common threat in piracy and maritime terrorism, an increase in extra-regional pressure to cooperate...

  3. Feasibility analysis of system dynamics for inland maritime logistics.

    Science.gov (United States)

    2014-02-01

    In the last decades, a number of factors have re-shaped the shipping industry, including the growth of international trade, the emergence of new markets, and the development of multimodal supply chains. This has led maritime transportation system, wh...

  4. Great Lakes maritime education program for K-12 teachers.

    Science.gov (United States)

    2011-02-01

    Michigan Technological University has led an educational/outreach effort for the Great Lake Maritime Research Institute since 2006. : Despite Michigan Techs relative isolation and long distance from most locations in the Great Lakes Basin, every s...

  5. Decentralized Adaptive Overcurrent Protection for Medium Voltage Maritime Power Systems

    DEFF Research Database (Denmark)

    Ciontea, Catalin-Iosif; Bak, Claus Leth; Blaabjerg, Frede

    2016-01-01

    control unit. The new adaptive protection method is based on communication between the overcurrent relays and the equipment that could affect the protection system, such as circuit breakers and generators. Using PSCAD, the proposed method is implemented in a test medium voltage maritime power system......More and more maritime applications as marine vessels and offshore platforms need an adaptive protection power system. However, the adaptive protection is yet to be implemented in the maritime sector. Usually, the adaptive protection implies the existence of a central control unit that monitors...... the entire electrical network and changes the relay settings accordingly, but this approach is not adequate for the maritime power systems. This paper propose a decentralized adaptive protection method, where each protection relay is able to identify by itself the network status without the need of a central...

  6. A Differentiation Framework for Maritime Clusters: Comparisons across Europe

    Directory of Open Access Journals (Sweden)

    Paulo Neto

    2013-09-01

    Full Text Available The purpose of this paper is to point out some of the main characteristics and critical factors for success that can substantiate the proposal of a differentiation framework for maritime clusters. We conduct a benchmarking analysis intended to distinguish the most relevant aspects which can or should be observed in these types of clusters, applied to the following countries: Spain (Basque Country, Germany (Lander of Schleswig-Holstein, the Netherlands and Norway. The differentiation factors involve agglomeration economies and endogenous conditions derived from geographic proximity, essential for lowering transaction costs, strengthening the leverage of public/private cooperation through centres of maritime excellence, at the same time providing an adequate local environment that favours positive interactions between the different maritime industries and actors. The main results arising from this article are presented through a reconceptualisation of Porter’s Diamond framework for diagnosing the competitiveness of maritime clusters.

  7. Maritime transport in the Gulf of Bothnia 2030.

    Science.gov (United States)

    Pekkarinen, Annukka; Repka, Sari

    2014-10-01

    Scenarios for shipping traffic in the Gulf of Bothnia (GoB) by 2030 are described in order to identify the main factors that should be taken into account when preparing a Maritime Spatial Plan (MSP) for the area. The application of future research methodology to planning of marine areas was also assessed. The methods include applying existing large scale quantitative scenarios for maritime traffic in the GoB and using real-time Delphi in which an expert group discussed different factors contributing to future maritime traffic in the GoB to find out the probability and significance of the factors having an impact on maritime traffic. MSP was tested on transnational scale in the Bothnian sea area as a pilot project.

  8. Security in maritime transport : risk factors and economic impact

    Science.gov (United States)

    2003-07-01

    Immediately after the devastating September 11th World Trade Center attacks in New York, governments around the world scrambled to assess their vulnerability to highly organised terrorist groups. World trade is dependent on maritime transport and gre...

  9. EPA's Role in the International Maritime Organization (IMO)

    Science.gov (United States)

    IMO promotes cooperation in regulation of shipping in international trade and encourages the adoption of the highest practicable standards concerning maritime safety, efficiency of navigation, and prevention and control of marine pollution from ships.

  10. System аnalysis concession maritime trade ports

    Directory of Open Access Journals (Sweden)

    Y.V. Shmatock

    2015-03-01

    Full Text Available The article proves the significance of maritime commercial ports as strategic for the country. The urgency of port concessions to improve transport infrastructure. The definition of ports in terms of system analysis and determination of management port. Outlined the sequence of system analysis concessions maritime trade ports in the table. Selection of qualified managers is based on the concession tender under prescribed conditions. These criteria should be considered when determining the concessionaire. These stages of the concession tender. Meeting the needs of the economy, international trade, public inquiries into transportation of goods is not possible without the efficient operation of maritime trade ports. Only complex technological modernization of maritime trade ports will enable them to take leadership positions. Tree depicted objectives effectively manage commercial sea port. Therefore, initiation of concessions needs to implement measures to achieve the talented and skillful result.

  11. Maritime Coalitions: When is Unity of Command Required

    National Research Council Canada - National Science Library

    Gahlinger, Gregory J

    2007-01-01

    .... The concepts of Unity of Command, Unity of Effort and Parallel, Lead Nation, or Integrated coalition command structures are viable across a broad spectrum of maritime coalition operations but do have...

  12. Introduction to "Binding Maritime China: Control, Evasion, and Interloping"

    Directory of Open Access Journals (Sweden)

    Eugenio Menegon

    2017-12-01

    Full Text Available Maritime Asia is a confusing morass of contested sovereignties and geopolitical rivalries. Yet the seaways of Asia have, in their history, also fostered cultural exchange and economic integration. The liminal maritime zone surrounding China remains a paradox between seas and ports teeming with legal and illegal exchange and governmental policies attempting to monopolize and restrict that exchange. Vast and fluid, maritime China has long hindered state control and fostered connections determined as much by bottom-up economic and cultural logic as by top-down official impositions. This issue of Cross-Currents proposes to reexamine the rich history of maritime China and adjacent areas by tracing the interactions of the three initiatives of control, evasion, and interloping. This special issue stems from a conference the guest editors organized in Boston in 2015, with support from Boston University, Brandeis University, Northeastern University, and the Taiwan Ministry of Education. We invited a distinguished group of scholars to explore the many facets of maritime China’s history. Our key postulation was that state control, evasion from that control, and interloping within the interstices of China’s maritime world literally bound an array of actors and locales for distinct but interrelated goals, from the early modern era to the modern era. This concept is encapsulated in the title of the current issue, “Binding Maritime China.” What “creates” and gives coherence to the concept of maritime China as a social, economic, political, and geographic space is, to a large extent, how human actors (Chinese and Western merchants and businessmen, navy officers, bureaucrats, fishermen, pirates, missionaries, and so on productively interacted or experienced conflicts and resisted one another’s control. They did so across oceanic and coastal spaces, administrative boundaries, class lines, bureaucratic institutions, commercial organizations, and

  13. Maritime antarctic lakes as sentinels of climate change

    OpenAIRE

    Camacho, A.; Rochera, C.; Villaescusa, J. A.; Velázquez, D.; Toro, M.; Rico, E.; Fernández-Valiente, E.; Justel, Ana; Bañón García, Manuel; Quesada, Antonio

    2012-01-01

    Remote lakes, such as lakes from the Maritime Antarctica, can be used as sentinels of climate change, because they are mostly free of direct anthropogenic pressures, and they experience climate change as a main stressor capable of modifying the ecosystem structure and function. In this paper, the content of a lecture that has been presented at the First Conference of Lake Sustainability, which has been centred in our studies on lakes from Byers Peninsula (Maritime Antarctic...

  14. Survey of Available Web Services for Maritime Tracking

    OpenAIRE

    DIMITROVA TATYANA

    2011-01-01

    In this paper we present a review of available web-services capable of tracking maritime vessels and containers. Many of the reviewed services are provided directly by the cargo carriers (with 57 such international carriers being catalogued here). They are analysed in-depth with the following criteria being used for evaluation purposes: type of tracking and useful information. We also review a range of services provided by non-carrier organizations specialising in maritime data. Reviewed serv...

  15. Using automatic identification system technology to improve maritime border security

    OpenAIRE

    Lindstrom, Tedric R.

    2014-01-01

    Approved for public release; distribution is unlimited Our coastal waters are the United States’ most open and vulnerable borders. This vast maritime domain harbors critical threats from terrorism, criminal activities, and natural disasters. Maritime borders pose significant security challenges, as nefarious entities have used small boats to conduct illegal activities for years, and they continue to do so today. Illegal drugs, money, weapons, and migrants flow both directions across our ma...

  16. Leveraging State And Local Law Enforcement Maritime Homeland Security Practices

    Science.gov (United States)

    2016-03-01

    recreation, national defense, and tourism . To understand the maritime homeland security efforts put into place after 9/11 better, a study of the practices...targets (hotels, restaurants, movie theaters, train terminals, and hospitals ), heavily populated/trafficked areas, and unsecured facilities, were all...national defense, and tourism , so too must be the approach to maritime homeland security. This research examined only the role of state and local law

  17. Polar Bears

    Science.gov (United States)

    Amstrup, Steven C.; Douglas, David C.; Reynolds, Patricia E.; Rhode, E.B.

    2002-01-01

    Polar bears (Ursus maritimus) are hunted throughout most of their range. In addition to hunting polar bears of the Beaufort Sea region are exposed to mineral and petroleum extraction and related human activities such as shipping road-building, and seismic testing (Stirling 1990).Little was known at the start of this project about how polar bears move about in their environment, and although it was understood that many bears travel across political borders, the boundaries of populations had not been delineated (Amstrup 1986, Amstrup et al. 1986, Amstrup and DeMaster 1988, Garner et al. 1994, Amstrup 1995, Amstrup et al. 1995, Amstrup 2000).As human populations increase and demands for polar bears and other arctic resources escalate, managers must know the sizes and distributions of the polar bear populations. Resource managers also need reliable estimates of breeding rates, reproductive intervals, litter sizes, and survival of young and adults.Our objectives for this research were 1) to determine the seasonal and annual movements of polar bears in the Beaufort Sea, 2) to define the boundaries of the population(s) using this region, 3) to determine the size and status of the Beaufort Sea polar bear population, and 4) to establish reproduction and survival rates (Amstrup 2000).

  18. A Case Study on Gender Equality and Women´s Empowerment Policies Developed by the World Maritime University for the Maritime Transport Sector

    OpenAIRE

    María Carolina Romero Lares

    2017-01-01

    The promotion of gender equality and women’s empowerment has been a goal of the United Nations Organization and its specialized agencies, within each one’s particular scope of competencies. The World Maritime University (WMU), a postgraduate maritime university founded by the International Maritime Organization (IMO), has put in place its own policies to promote the participation of women in the maritime transport sector. The main idea behind this case study analysis is to look at how WMU´s p...

  19. Relief for maritime medical emergencies through telematics.

    Science.gov (United States)

    Anogianakis, G; Maglavera, S; Pomportsis, A

    1998-12-01

    MERMAID is a European Union (EU)-financed maritime telemedicine project with global reach and 24-h multilingual capability, so as to serve multinational crews working in the isolation of the world's oceans. It provides a model for the provision of healthcare services based on the electronic transmission of medical information via ISDN-based video conferencing. This model is not limited to medical diagnostics, but it encompasses all cases in which the actual delivery of healthcare services involves a patient who is not located where the provider is. Its implementation requires the commissioning of an extensive telecommunications infrastructure that includes both satellite transmission for ship to shore communication and an extensive ground-based network for summoning expert medical help from around the world so as to meet the project's multilinguality requirements and, therefore, the exploration of a number of solutions. In fact, all categories of telemedical applications (audio and video conferencing, multimedia communications, flat file and image transfer with low-, medium-, and high-bandwidth data requirements) are considered, while the full range of network choices (digital land lines, cellular/wireless, satellite, and broadband) are being tested in terms of cost/performance tradeoffs that are inherent to them and the developmental stage each of these options occupies in their lifecycle. Finally, out of that, MERMAID utilizes advanced land-based line transmission technologies to aid the remote patient by making available the specialist care that is best suited in the particular case.

  20. Contribution of the maritime continent convection during the preconditioning stage of the Madden-Julian Oscillation

    Science.gov (United States)

    Kubota, H.; Yoneyama, K.; Nasuno, T.; Hamada, J.

    2013-12-01

    During the international field experiment 'Cooperative Indian Ocean experiment on intraseasonal variability in the Year 2011 (CINDY2011)', the preconditioning process of the MJO was observed. In this study, the contribution of the maritime continent convection was focused on the preconditioning process of the third MJO. During the preconditioning stage of the MJO, westward propagating disturbances were observed from Sumatera Island to the central Indian Ocean and moistened the atmosphere. Convections over the Sumatera Island were activated around December 15th when the moist air mass reached from South China Sea. The origin of the moist air mass was tropical cyclone which was formed in South China Sea in December 10th. The high moisture associated with tropical cyclone activated the convection over Sumatera Island, promoted westward propagating disturbances, and acted a favorable environment for the preconditioning of the MJO. This preconditioning stage of the MJO is simulated by Nonhydrostatic ICosahedral Atmospheric Model (NICAM) and investigated the moistening process.

  1. The Establishment of the Danish International Ship Register (DIS) and its Connections to the Maritime Cluster

    DEFF Research Database (Denmark)

    Sornn-Friese, Henrik; Iversen, Martin Jes

    2014-01-01

    This article discusses the development of second ship registers and their interconnections to the policy idea of maritime clusters. Through a narrative of the contemporary history of Danish maritime policy, the article shows how these apparently different policy measures were closely related...... of the traditional shipping nations to set up a second register, and the concept of maritime clusters became part of Danish maritime policy before it emerged as a construct in European Union maritime policy. We provide detail on the unfolding of some of the most important recent events in Danish maritime policy...

  2. High-birefringence photonic crystal fiber polarization filter with gold-coated and liquid-filled air holes based on surface plasmon resonance

    Science.gov (United States)

    Lou, Junbo; Li, Shuguang; Cheng, Tonglei; Yan, Xin; Zhang, Xuenan

    2018-01-01

    A high-birefringence photonic crystal fiber polarization filter is proposed. The coupling theory is used to explain full and incomplete couplings. The resonance point can be adjusted to the communication band by optimizing the fiber structure parameters. Numerical simulation results indicate that the resonance strength can reach 924.96 and 710.28 dB.cm-1 at the communication wavelength of 1.31 and 1.55 μm in x- and y-polarized directions, respectively. By filling liquid analyte, the confinement loss can reach 804.52 dB.cm-1 at the wavelength of 1.55 μm. Furthermore, when the fiber length of L equals 500 μm, the peak value of the cross talk (CT) can reach 389.15 and -280.52 dB, respectively. When the length of the fiber L equals 200 μm, the bandwidth of the CT better than 20 dB is up to 120 nm at the wavelength of 1.31 μm, and the bandwidth of the CT<-20 dB is up to 140 nm at the wavelength of 1.55 μm. These properties make it a good candidate for designing types of polarization filter devices.

  3. The ozone pollution and the climatology in a Mediterranean space: the Alpes-Maritimes

    International Nuclear Information System (INIS)

    Martin, N.

    2008-12-01

    The tropospheric ozone, secondary pollutant affecting the health of the human beings, concerns particularly the department of the Alpes-Maritimes during the photochemical season. Mountainous littoral space, this territory is widely dominated during summer notably by anticyclonic conditions allowing the thermal breezes to express themselves. This regime of wind is in the center of the problem of the ozone pollution because it pulls frequently an accumulation of primary and secondary pollutants in the course of days within the same air mass. Although being a weakly industrialized department, the Alpes-Maritimes are victims of a strong period of sunshine which allows primary pollutants emitted mainly by the road traffic to produce some ozone. Through the data of pollution stemming from the network of surveillance of the air quality AtmoPACA as well as from very numerous measures of ground, the objective is to understand better the relations between the spatial and temporal variability of the ozone and that of the weather conditions to various scales. Having detailed the history of the available ozone and nitrogen dioxide measures in the department, the first approach in macro-scale is led between the NCEP reanalysis and the ozone pollution levels in nine measures stations of the Alpes-Maritimes. This first level of analysis allows defining the general meteorological configurations characterizing an episode of pollution by the ozone. The presence of an anticyclonic ridge on the Western Europe associated with weak speeds of wind, weak rates of relative humidity and a weak relative vorticity, provoke a degradation of the air quality in the department. A second analysis level is then approached: it is a question of clarifying in meso-scale and in micro-scale the weather conditions convenient to strong ozone concentrations. For it, itinerant ozone measures campaigns are made in the whole of the department; an important data base is established on Nice and in its

  4. COMPARATIVE ANALYSIS OF POLISH AND CROATIAN MARITIME POLICY IN THE CONTEXT OF THE INTEGRATED MARITIME POLICY OF THE EUROPEAN UNION

    Directory of Open Access Journals (Sweden)

    Katarzyna Skrzeszewska

    2016-12-01

    Full Text Available Traditional activities based on sea resources (maritime transport, shipyards, fishery always played the key role in increasing production possibilities of the economies with the access to the sea. The development of technique and technology distinctly contributed to broadening the horizons and diversification of activities based on exploitation of maritime basins. Despite the positive results connected with greater and more intense exploration of seas resources, there also appeared the negative effects. First and foremost, they are connected with degradation of the natural environment and growing conflicts of interests of different groups of the basins users. The issue of split entitlement to use seas resources was brought to the world forum in 1982 by enacting the United Nations Convention on the Law of the Sea (UNCLOS. The European Commission, having contucted consultations on a large scale, accepted the Integrated Maritime Policy of the European Union (IMP EU. It was based on the assumption, that all maritime activities are interconnected and that is why they should be performed in a coordinated manner to achive the established goals. The Integrated Maritime Policy created the framework, in which the member states were to find appropiate solutions to their economy specificity, inter alia – the maritime economy. In the paper, the results of the research of maritime policies of two countries - Poland and Croatia are presented. The goal of the research is to check how far the policies of these two countries are coherent with each other and with the assumptions of the IMP. In the research the deductive method was used - it was based at conclusions from the comparative analysis. The surveys were conducted on the basis of the EU, Polish and Croatian strategic documents.

  5. Natural gas prices in the Maritimes : an energy market assessment

    International Nuclear Information System (INIS)

    2004-03-01

    The National Energy Board monitors the supply and price of natural gas in the Maritimes. This report contains the results and analysis of a survey of the wholesale natural gas prices paid by Canadian buyers in the Maritimes from November 2002 to October 2003. The objective of the report is to improve the understanding of the market factors that influence wholesale natural gas prices in the Maritimes. A comparative evaluation of domestic and export prices shows that Canadian buyers have had access to gas at prices similar to the export market at St. Stephen, New Brunswick. Since the number of participants in the domestic market is low, only four large buyers have a major impact on average prices in the region. The challenge for small buyers will be to buy gas from others who can divert some of their own sales of use. However, these sellers may not want to over-commit to new firm sales in case they have to re-purchase the gas during shortages that may occur due to fluctuations in production or shipping. It was noted that a new gas supply into the region would support many buyers and sellers, and could lead to a more transparent Maritime natural gas market. The National Energy Board is satisfied that the Maritime natural gas market is currently performing as well as can be expected, given its young stage of development. 1 tab., 8 figs., 1 appendix

  6. Maritime Training Serbian Autonomous Vessel Protection Detachment

    Directory of Open Access Journals (Sweden)

    Šoškić Svetislav D.

    2014-06-01

    Full Text Available The crisis in Somalia has caused appearance of piracy at sea in the Gulf of Aden and the Western Indian Ocean. Somali pirates have become a threat to economic security of the world because almost 30 percent of world oil and 20 percent of global trade passes through the Gulf of Aden. Solving the problem of piracy in this part of the world have included international organizations, institutions, military alliances and the states, acting in accordance with international law and UN Security Council resolutions. The European Union will demonstrate the application of a comprehensive approach to solving the problem of piracy at sea and the crisis in Somalia conducting naval operation — EU NAVFOR Atalanta and operation EUTM under the Common Security and Defense Policy. The paper discusses approaches to solving the problem of piracy in the Gulf of Aden and the crisis in Somalia. Also, the paper points to the complexity of the crisis in Somalia and dilemmas correctness principles that are applied to solve the problem piracy at sea. One of goals is protections of vessels of the World Food Programme (WFP delivering food aid to displaced persons in Somalia. Republic of Serbia joined in this mission and trained and sent one a autonomous team in this military operation for protection WFP. This paper consist the problem of modern piracy, particularly in the area of the Horn of Africa became a real threat for the safety of maritime ships and educational process of Serbian Autonomous vessel protection detachment. Serbian Military Academy adopted and developed educational a training program against piracy applying all the provisions and recommendations of the IMO conventions and IMO model courses for Serbian Autonomous vessel protection detachment.

  7. Using C-Band Dual-Polarization Radar Signatures to Improve Convective Wind Forecasting at Cape Canaveral Air Force Station and NASA Kennedy Space Center

    Science.gov (United States)

    Amiot, Corey G.; Carey, Lawrence D.; Roeder, William P.; McNamara, Todd M.; Blakeslee, Richard J.

    2017-01-01

    The United States Air Force's 45th Weather Squadron (45WS) is the organization responsible for monitoring atmospheric conditions at Cape Canaveral Air Force Station and NASA Kennedy Space Center (CCAFS/KSC) and issuing warnings for hazardous weather conditions when the need arises. One such warning is issued for convective wind events, for which lead times of 30 and 60 minutes are desired for events with peak wind gusts of 35 knots or greater (i.e., Threshold-1) and 50 knots or greater (i.e., Threshold-2), respectively (Roeder et al. 2014).

  8. Evidence for long-lived polar vortex air in the mid-latitude summer stratosphere from in situ laser diode CH4 and H2O measurements

    Directory of Open Access Journals (Sweden)

    G. Durry

    2005-01-01

    Full Text Available A balloon borne diode laser spectrometer was launched in southern France in June 2000 to yield in situ stratospheric CH4 and H2O measurements. In the altitude region ranging from 20km to 25km, striking large spatial structures were observed in the vertical concentration profiles of both species. We suggest these patterns are due to the presence of long-lived remnants of the wintertime polar vortex in the mid-latitude summer stratosphere. To support this interpretation, a high resolution advection model for potential vorticity is used to investigate the evolution of the Arctic vortex after its breakdown phase in spring 2000.

  9. The polarization of light in coastal and open oceans: Reflection and transmission by the air-sea interface and application for the retrieval of water optical properties

    Science.gov (United States)

    Foster, Robert

    For decades, traditional remote sensing retrieval methods that rely solely on the spectral intensity of the water-leaving light have provided indicators of aquatic ecosystem health. With the increasing demand for new water quality indicators and improved accuracy of existing ones, the limits of traditional remote sensing approaches are becoming apparent. Use of the additional information intrinsic to the polarization state of light is therefore receiving more attention. One of the major challenges inherent in any above-surface determination of the water-leaving radiance, scalar or vector, is the removal of extraneous light which has not interacted with the water body and is therefore not useful for remote sensing of the water itself. Due in-part to the lack of a proven alternative, existing polarimeter installations have thus far assumed that such light was reflected by a flat sea surface, which can lead to large inaccuracies in the water-leaving polarization signal. This dissertation rigorously determines the full Mueller matrices for both surface-reflected skylight and upwardly transmitted light by a wind-driven ocean surface. A Monte Carlo code models the surface in 3D and performs polarized ray-tracing, while a vector radiative transfer (VRT) simulation generates polarized light distributions from which the initial Stokes vector for each ray is inferred. Matrices are computed for the observable range of surface wind speeds, viewing and solar geometries, and atmospheric aerosol loads. Radiometer field-of-view effects are also assessed. Validation of the results is achieved using comprehensive VRT simulations of the atmosphere-ocean system based on several oceanographic research cruises and specially designed polarimeters developed by the City College of New York: one submerged beneath the surface and one mounted on a research vessel. When available, additional comparisons are made at 9 km altitude with the NASA Research Scanning Polarimeter (RSP). Excellent

  10. Ports and maritime activities of Orissa (16th to 19th centuries)

    Digital Repository Service at National Institute of Oceanography (India)

    Tripati, S.

    Ports and maritime activities of Orissa (India) and the maritime contacts with European countries during 16th to 19th century are presented in this paper. The matrial for the study has beach collected from the European factory records, accounts...

  11. 76 FR 54806 - Maritime Advisory Committee for Occupational Safety and Health (MACOSH)

    Science.gov (United States)

    2011-09-02

    ... DEPARTMENT OF LABOR Occupational Safety and Health Administration [Docket No. OSHA-2011-0007] Maritime Advisory Committee for Occupational Safety and Health (MACOSH) AGENCY: Occupational Safety and Health Administration (OSHA), Labor. ACTION: Notice of MACOSH Meeting. SUMMARY: The Maritime Advisory...

  12. 76 FR 38428 - Maritime Advisory Committee for Occupational Safety and Health (MACOSH)

    Science.gov (United States)

    2011-06-30

    ... DEPARTMENT OF LABOR Occupational Safety and Health Administration [Docket No OSHA-2011-0007] Maritime Advisory Committee for Occupational Safety and Health (MACOSH) AGENCY: Occupational Safety and Health Administration (OSHA), Labor. ACTION: Notice of MACOSH meeting. SUMMARY: The Maritime Advisory...

  13. Maritime Transportation Security Act of 2002 : section 109 implementation : a report to Congress

    Science.gov (United States)

    2003-05-01

    The U.S. Congress enacted the Maritime Transportation Security Act (MTSA) of 2002 (Public Law 107- 295) on November 25, 2002. On April 3, 2003, the Secretary of Transportation (Secretary) delegated to the Maritime Administrator the authority to imple...

  14. Think Globally, Act Locally -- Global Maritime Partnership Initiative and the Necessity for Cooperation and Coalition

    National Research Council Canada - National Science Library

    Reller, Jason S

    2008-01-01

    "A Cooperative Strategy for 21st Century Seapower," as released in October 2007 by the heads of the United States maritime services, envisions a cooperative effort by nations with maritime interests...

  15. Risk of the Maritime Supply Chain System Based on Interpretative Structural Model

    Directory of Open Access Journals (Sweden)

    Jiang He

    2017-11-01

    Full Text Available Marine transportation is the most important transport mode of in the international trade, but the maritime supply chain is facing with many risks. At present, most of the researches on the risk of the maritime supply chain focus on the risk identification and risk management, and barely carry on the quantitative analysis of the logical structure of each influencing factor. This paper uses the interpretative structure model to analysis the maritime supply chain risk system. On the basis of comprehensive literature analysis and expert opinion, this paper puts forward 16 factors of maritime supply chain risk system. Using the interpretative structure model to construct maritime supply chain risk system, and then optimize the model. The model analyzes the structure of the maritime supply chain risk system and its forming process, and provides a scientific basis for the controlling the maritime supply chain risk, and puts forward some corresponding suggestions for the prevention and control the maritime supply chain risk.

  16. Value Creation in the Maritime Chain of Transportation

    DEFF Research Database (Denmark)

    Roslyng Olesen, Thomas

    This report has examined the concept of value creation in the maritime chain of transportation. A maritime transport chain can best be conceptualized as a network through which carriers (e.g. shipping companies and haulage providers) and third parties (e.g. terminal operators, freight forwarders......, brokers and agents) provide services for the movement of cargo provided by shippers. The main actors in the maritime chain of transportation are the carriers who add value to the shipper by moving goods from areas with excess supply to areas with excess demand. In this process a number of (independent...... transactions between the actors in the chain. A port agent may add value to a carrier by securing smooth port operations and thus reduce waiting time. The added value may, however, be captured by a freight forwarder who forces the carrier to lower the price or more likely be distributed among several actors...

  17. The innovation inducement impact of environmental regulations on maritime transport

    DEFF Research Database (Denmark)

    Makkonen, Teemu; Repka, Sari

    2016-01-01

    Maritime transport is facing wide-ranking challenges due to stricter environmental regulations. It has been positioned that these stricter environmental regulations will significantly hamper the competitiveness of the shipping industry and other export/import oriented industries. However, contras......Maritime transport is facing wide-ranking challenges due to stricter environmental regulations. It has been positioned that these stricter environmental regulations will significantly hamper the competitiveness of the shipping industry and other export/import oriented industries. However......), in general, and the economic impacts of environmental regulations (here Annex VI of the MARPOL Convention) as it applies to shipping in Northern Europe, in particular. According to the review, the literature is still inconclusive and lacks a clear consensus on the economic and innovation inducement impacts...... of environmental regulations on maritime transport. Therefore, the review concludes in suggestions for further studies on the use of marine scrubber systems as an illustrative case study example....

  18. Innovative conditions of professionally applied training for maritime-students.

    Directory of Open Access Journals (Sweden)

    Podlesny A.I.

    2011-01-01

    Full Text Available The author considers organizational and methodological terms of implementation of professional and applied physical training for maritime students subject to their motivation to physical self-perfection. The purpose of the research is to define organizational and pedagogical terms for professional and applied physical training of maritime students to improve their physical condition and special physical attainment. The applied methods were: anthropometric metrology, functional probes, tonometry, pulsometry, motion tests and mathematical analysis. 70 students of 17-18 years participated in the research. It was determined that organizational and pedagogical terms directed on acceleration of making necessary for students to self-improve physically, positively impact on development of special physical state that are fundamental for professional activities of maritime students.

  19. Development of nuclear spent fuel Maritime transportation scenario

    International Nuclear Information System (INIS)

    Yoo, Min; Kang, Hyun Gook

    2014-01-01

    Spent fuel transportation of South Korea is to be conducted through near sea because it is able to ship a large amount of the spent fuel far from the public comparing to overland transportation. The maritime transportation is expected to be increased and its risk has to be assessed. For the risk assessment, this study utilizes the probabilistic safety assessment (PSA) method and the notions of the combined event. Risk assessment of maritime transportation of spent fuel is not well developed in comparison with overland transportation. For the assessment, first, the transportation scenario should be developed and categorized. Categories are assorted into the locations, release aspects and exposure aspects. This study deals with accident that happens on voyage and concentrated on ship-ship collision. The collision accident scenario is generated with event tree analysis. The scenario will be exploited for the maritime transportation risk model which includes consequence and accident probability

  20. Cooperative measures to mitigate Asia-Pacific maritime conflicts.

    Energy Technology Data Exchange (ETDEWEB)

    Chai, Wen-Chung (Taiwan Navy)

    2003-05-01

    The economies of East Asia are predominantly export based and, therefore, place special emphasis on the security of the sea lines of communication (SLOCs). Due to economic globalization, the United States shares these concerns. Cooperative measures by the concerned parties could reduce the potential for disruption by maritime conflicts. Primary threats against the SLOCs are disputes over the resources under the seas, disputes over some small island groups, disputes between particular parties (China-Taiwan and North-South Korea), or illegal activities like smuggling, piracy, or terrorism. This paper provides an overview on these threats, issue by issue, to identify common elements and needed cooperation. Cooperation on other topics such as search and rescue, fisheries protection, and oil spill response may help support improved relations to prevent maritime conflicts. Many technologies can help support maritime cooperation, including improved communications links, tracking and emergency beacon devices, and satellite imaging. Appropriate technical and political means are suggested for each threat to the SLOCs.

  1. Redefining Maritime Security Threats in the Eastern Indian Ocean Region.

    Energy Technology Data Exchange (ETDEWEB)

    Banerjee, Arjun [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-08-01

    This occasional paper analyzes the general security issues and trends relating to maritime trafficking of radiological and nuclear material using small vessels, minor ports, and unchecked areas of coastline existing in the Eastern Indian Ocean Region today. By the Eastern Indian Ocean Region is meant the area starting from the tip of the Indian peninsula in the west to the Straits of Malacca in the east. It lays focus on the potential sources of nuclear or radiological material that may be trafficked here. It further undertakes a study of the terrorist groups active in the region as well as the multinational or national interdiction organizations that have been created to counter maritime threats. It also seeks to discern the various technologies for detecting materials of concern available in the area. Finally, it ascertains possible methods and technologies to improve the maritime security system in the region.

  2. Commercial Capabilities and Entrepreneurial Value Capturing in Dynamic Maritime Markets

    DEFF Research Database (Denmark)

    Sløk-Madsen, Stefan Kirkegaard

    market process view; building on Kirznerian alertness, Hayekian capital heterogeneity, and Knightian uncertainty. The theory helps explain value capturing from a firm perspective but also subsequent new firm creation or value loss. The model is tested and relevant managerial implications, as well......This paper develops and tests a theory of entrepreneurial value capturing in maritime markets. The framework is argued to be applicable in all maritime fields and other fields with similar attributes but is specifically tested on Oil Service companies operating in the North Sea region....... This specific empirical application, however, mirrors general maritime concerns of derived demand and high capital intensity and knowledge specificity. The paper introduces the construct of Commercial Capabilities and models the relevance of such a subset of firm capabilities from an entrepreneurial dynamic...

  3. The impact of artificial intelligence on airborne maritime reconnaissance

    Science.gov (United States)

    Shepard, J.; Scott-Wilson, R. J.

    1985-08-01

    Some of the problems arising out of the introduction of VHPIC to the sensor and data processing systems of Maritime Reconnaissance aircraft are susceptible to solution by conventional computing techniques within mission time constraints. Some may be more susceptible to the use of artificial intelligence techniques. This paper identifies those aspects of artificial intelligence relevant to the Airborne Maritime Reconnaissance task and the areas of the current task where artificial intelligence can be usefully applied. It reviews the current state of the art in the relevant aspects of artificial intelligence and indicates how they might be employed in the near, medium and long term. It indicates some future applications and concludes that, artificial intelligence will play an important role in the future Maritime Reconnaissance aircraft.

  4. The Mycetophagidae (Coleoptera of the Maritime Provinces of Canada

    Directory of Open Access Journals (Sweden)

    Christopher Majka

    2010-10-01

    Full Text Available The Mycetophagidae (hairy fungus beetles of the Maritime Provinces of Canada are surveyed. Seven species in the genera Mycetophagus, Litargus, and Typhaea are found in the region. Six new provincial records are reported including Mycetophagus punctatus and Mycetophagus flexuosus, whichare newly recorded in the Maritime Provinces. The distribution of all species is mapped, colour habitus photographs of all species are figured, and an identification key to species is provided. The discussion notes that four of the species found in the region are apparently rare, possibly due to the history of forest management practices in the region; a situation similar to that of a significant proportion of other saproxylic beetles found in the Maritime Provinces.

  5. Political polarization

    OpenAIRE

    Dixit, Avinash K.; Weibull, Jörgen W.

    2007-01-01

    Failures of government policies often provoke opposite reactions from citizens; some call for a reversal of the policy, whereas others favor its continuation in stronger form. We offer an explanation of such polarization, based on a natural bimodality of preferences in political and economic contexts and consistent with Bayesian rationality.

  6. Political polarization.

    Science.gov (United States)

    Dixit, Avinash K; Weibull, Jörgen W

    2007-05-01

    Failures of government policies often provoke opposite reactions from citizens; some call for a reversal of the policy, whereas others favor its continuation in stronger form. We offer an explanation of such polarization, based on a natural bimodality of preferences in political and economic contexts and consistent with Bayesian rationality.

  7. Maritime Education and Research to Face the XXI-st Century Challenges in Gdynia Maritime University’s Experience Part I – Maritime Universities Facing Today and Tomorrow’s Challenges

    Directory of Open Access Journals (Sweden)

    Janusz Mindykowski

    2013-12-01

    Full Text Available In the paper, divided into two parts, a problem of advancements in maritime education and research facing the 21st century challenges, based on the case study of the Gdynia Maritime University (GMU experience is discussed. Part I is devoted to the main directions of advances in the maritime education and research towards the challenges in a global meaning. In this context, the education and research potential of the Gdynia Maritime University, as one of the world-leading maritime universities, is shortly presented. Part II is dedicated to the Gdynia Maritime University experiencing the 21st century challenges. The GMU’s contribution and good practices concerning the participation in modification of the processes of the IMO STCW 78/2010 convention, adoption of programmes into the international and national qualification frameworks’ standards and procedures, as well as the development of research addressed to a new technological and organizational solution are described and analyzed.

  8. Network-Centric Maritime Radiation Awareness and Interdiction Experiments: C2 Experimentation

    Energy Technology Data Exchange (ETDEWEB)

    Bordetsky, A; Dougan, A D; Nekoogar, F

    2006-08-07

    The paper addresses technological and operational challenges of developing a global plug-and-play Maritime Domain Security testbed for the Global War on Terrorism mission. This joint NPS-LLNL project is based on the NPS Tactical Network Topology (TNT) composed of long-haul OFDM networks combined with self-forming wireless mesh links to air, surface, ground, and underwater unmanned vehicles. This long-haul network is combined with ultra-wideband (UWB) communications systems for wireless communications in harsh radio propagation channels. LLNL's UWB communication prototypes are designed to overcome shortcomings of the present narrowband communications systems in heavy metallic and constricted corridors inside ships. In the center of our discussion are networking solutions for the Maritime Interdiction Operation (MIO) Experiments in which geographically distributed command centers and subject matter experts collaborate with the Boarding Party in real time to facilitate situational understanding and course of action selection. The most recent experiment conducted via the testbed extension to the Alameda Island exercised several key technologies aimed at improving MIO. These technologies included UWB communications from within the ship to Boarding Party leader sending data files and pictures, advanced radiation detection equipment for search and identification, biometric equipment to record and send fingerprint files to facilitate rapid positive identification of crew members, and the latest updates of the NPS Tactical Network Topology facilitating reachback to LLNL, Biometric Fusion Center, USCG, and DTRA experts.

  9. Network-Centric Maritime Radiation Awareness and Interdiction Experiments: C2 Experimentation

    International Nuclear Information System (INIS)

    Bordetsky, A; Dougan, A D; Nekoogar, F

    2006-01-01

    The paper addresses technological and operational challenges of developing a global plug-and-play Maritime Domain Security testbed for the Global War on Terrorism mission. This joint NPS-LLNL project is based on the NPS Tactical Network Topology (TNT) composed of long-haul OFDM networks combined with self-forming wireless mesh links to air, surface, ground, and underwater unmanned vehicles. This long-haul network is combined with ultra-wideband (UWB) communications systems for wireless communications in harsh radio propagation channels. LLNL's UWB communication prototypes are designed to overcome shortcomings of the present narrowband communications systems in heavy metallic and constricted corridors inside ships. In the center of our discussion are networking solutions for the Maritime Interdiction Operation (MIO) Experiments in which geographically distributed command centers and subject matter experts collaborate with the Boarding Party in real time to facilitate situational understanding and course of action selection. The most recent experiment conducted via the testbed extension to the Alameda Island exercised several key technologies aimed at improving MIO. These technologies included UWB communications from within the ship to Boarding Party leader sending data files and pictures, advanced radiation detection equipment for search and identification, biometric equipment to record and send fingerprint files to facilitate rapid positive identification of crew members, and the latest updates of the NPS Tactical Network Topology facilitating reachback to LLNL, Biometric Fusion Center, USCG, and DTRA experts

  10. A study on "mobbing" in maritime field: a case study in the Turkish maritime industry.

    Science.gov (United States)

    Kum, Serdar; Ertas, Yildiray

    2016-01-01

    Nowadays, there are many reasons for people to be stressful and restless in their working environments. One of the reasons leading to this situation is known as "mobbing". The term "mobbing" means "bullying of an individual by a group". It usually happens among employees. The main effects of mobbing are the generation of stress and reduction of employee performance at work. In general, research shows that mobbing is particularly common in the public sector. The aim of this research is to understand the frequency of mobbing on employees in the Turkish maritime industry as a case study. In this study, a questionnaire survey on ship, shipyard, public and private company workers was applied to understand how often employees are exposed to mobbing. After analysing the results, it is also aimed to obtain information about the reasons and causes of mobbing, and then we can get some advice for this issue.

  11. Evidence for evanescent waves at interfaces in a high-index prism/liquid-crystal-Au-NPs/glass/air structure and effects of relative concentration of gold nanoparticles, wavelength, polarization, and incident angle of the laser beam

    Science.gov (United States)

    Tiwari, Kunal; Singh, Ankit; Sharma, Suresh

    2011-10-01

    Incorporation of relatively small concentrations of gold nanoparticles (Au NPs) in a polymer-dispersed liquid crystal (PDLC) is known to lower the operating threshold voltage and increase optical transmission through the device.ootnotetextA. Hinojosa and S. C. Sharma, Applied Physics Letters, 97, 081114 (2010) In order to understand whether there is an interplay between the localized surface plasmon resonance at Au-NPs-dielectric interfaces and the electro-optical properties of PDLC devices, we have investigated propagation of light through a high-index prism/liquid-crystal-Au-NPs/glass/air structure by using Kretschmann geometry as functions of concentration of Au NPs in the liquid crystal, and the wavelength, polarization, and angle of incidence of the laser beam. We will discuss to what extent the results of these experiments support an interplay between the localized surface plasmon resonance at NPs/dielectric interfaces and optical propagation through the above-described structure.

  12. Maritime Security and Capacity Building in The Gulf of Guinea

    DEFF Research Database (Denmark)

    Jacobsen, Katja Lindskov

    2017-01-01

    It is widely acknowledged that maritime security in the Gulf of Guinea is a highly complex phenomenon, involving a variety issues (legal deficiencies, inadequate military equipment, and challenges like corruption, political unrest, youth unemployment etc.) as well as a multiplicity of external...... response, they are at the same time illustrative of how the maritime capacity building activities of various external actors also ‘succeed’ in having an impact on this regional security landscape – for instance by influencing how certain aspects of this multifaceted problem are prioritized, whilst others...

  13. Drills and Training on board Ship in Maritime Transport

    Directory of Open Access Journals (Sweden)

    Cristina Dragomir

    2016-01-01

    Full Text Available In maritime transport, drills are methods of practicing how a team or individuals should behavein case of an emergency on board ship (fire, explosion, pirates’ attacks, ship sinking, shipgrounding, capsizing etc.. Most commonly acknowledged in the shipping domain, drills aresynonyms to training exercises. Drills are extremely important for the safety of ship, crew andpassengers and are mandatory to be performed in any sea voyage. In this paper is made anoverview on regulatory framework and strategic role of efficient maritime drills and training.

  14. Maritime Safety – Stakeholders in Information Exchange Process

    Directory of Open Access Journals (Sweden)

    Piotr Wolejsza

    2015-03-01

    Full Text Available This paper presents the methodology and research results on identification of potential users of the ESABALT system, which is targeted towards improving the situational awareness in the Baltic Sea region. We describe the technique of analysing the stakeholders involved in maritime sector processes, especially in maritime transport processes, while also taking into account their different classification criteria. The resulting list of stakeholders is used to identify system users and their classification into user profiles groups. This study will form the basis for the identification of user requirements of the ESABALT system.

  15. "Oceanus Resartus"; or, Is Chinese Maritime History Coming of Age?

    Directory of Open Access Journals (Sweden)

    Leonard Blussé

    2017-12-01

    Full Text Available Perhaps the most salient feature of the transformation of China’s economic policy is its tack into the oceanic sphere. This is a break with the country’s traditional past as an inland-looking, continental power: the landscape is now complemented by the seascape. This article suggests that China’s new relationship with the sea asks for a master plan for reclaiming a neglected maritime past—the invention of a national maritime tradition, a newly tailored past to explain China’s former relationship with the sea.

  16. Maritime super Wi-Fi coverage based on TVWS

    Science.gov (United States)

    Ren, Jia; Chen, Baodan; Zhang, Yonghui; Huang, Fang

    2014-10-01

    After analyzing the occupancy and characteristics of television white space (TVWS), this paper proposes wireless broadband networking by using super Wi-Fi technology in maritime environment operating on TVWS. A sea surface channel model is developed for predicting maritime network coverage of super Wi-Fi technology. This channel model is based on Irregular Terrain Methodology (ITM) model with revised parameters and dual-path propagation effect. The simulations demonstrated that the sea surface channel model can accurately reflect the transmission loss of radio wave in TVWS.

  17. MARAD maritime experiments using the NASA ATS-6 satellite

    Science.gov (United States)

    Brandel, D. L.; Kaminsky, Y.

    1975-01-01

    The objectives of the MARAD maritime experiments (conducted in the L-band fan beam mode) using the ATS-6 satellite are detailed. They include the following: (1) to evaluate the economic benefits of fleet operators through the use of satellite communications, (2) to evaluate performance criteria for shipboard terminal equipment needed to establish various grades of fleet operations services using commercial satellite systems, (3) to determine the effects of signal propagation, ship radio frequency noise, and ship antenna pointing on the maritime communications and navigation channel, and (4) to evaluate various modems for the transmission and reception of voice, data and position location signals via satellite systems.

  18. 78 FR 21977 - Maritime Advisory Committee for Occupational Safety and Health (MACOSH)

    Science.gov (United States)

    2013-04-12

    ... DEPARTMENT OF LABOR Occupational Safety and Health Administration Maritime Advisory Committee for... Maritime Advisory Committee for Occupational Safety and Health. The Committee will better enable OSHA to... Committee will advise OSHA on matters relevant to the safety and health of employees in the maritime...

  19. 76 FR 30014 - Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA

    Science.gov (United States)

    2011-05-24

    ...-AA00 Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA AGENCY: Coast Guard...) entitled ``Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA'' in the Federal... response craft in the event of an emergency and ensuring participant, spectator and maritime safety. The...

  20. 78 FR 43064 - Safety Zone; Maritime Heritage Festival Fireworks, St. Helens, OR

    Science.gov (United States)

    2013-07-19

    ...-AA00 Safety Zone; Maritime Heritage Festival Fireworks, St. Helens, OR AGENCY: Coast Guard, DHS. ACTION... zone is necessary to help ensure the safety of the maritime public during a planned fireworks display... will help ensure the safety of the maritime public by prohibiting persons and vessels from risks...

  1. 75 FR 13783 - Maritime Advisory Committee for Occupational Safety and Health (MACOSH)

    Science.gov (United States)

    2010-03-23

    ... DEPARTMENT OF LABOR Occupational Safety and Health Administration Maritime Advisory Committee for.... ACTION: MACOSH meeting; Notice. SUMMARY: The Maritime Advisory Committee for Occupational Safety and... occupational safety and health in the maritime industries. The purpose of this Federal Register notice is to...

  2. 47 CFR 80.333 - Stations in the maritime mobile-satellite service.

    Science.gov (United States)

    2010-10-01

    ... SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Safety Watch Requirements and Procedures Distress, Alarm, Urgency and Safety Procedures § 80.333 Stations in the maritime mobile-satellite service. The... 47 Telecommunication 5 2010-10-01 2010-10-01 false Stations in the maritime mobile-satellite...

  3. 78 FR 46855 - Safety Zone; East End Maritime Foundation Fireworks Display, Greenport Harbor, Greenport, NY

    Science.gov (United States)

    2013-08-02

    ... 1625-AA00 Safety Zone; East End Maritime Foundation Fireworks Display, Greenport Harbor, Greenport, NY... temporary rule proposes to establish a safety zone for the East End Maritime Foundation fireworks display....1. 0 2. Add Sec. 165.T01-0600 to read as follows: Sec. 165.T01-0600 Safety Zone; East End Maritime...

  4. 77 FR 46126 - Maritime Advisory Committee for Occupational Safety and Health (MACOSH)

    Science.gov (United States)

    2012-08-02

    ...] Maritime Advisory Committee for Occupational Safety and Health (MACOSH) AGENCY: Occupational Safety and... nominations for membership on the Maritime Advisory Committee for Occupational Safety and Health. DATES: You... increase the effectiveness of safety and health standards that apply to the maritime industries, injury and...

  5. 75 FR 71638 - Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliot Bay, Seattle, WA

    Science.gov (United States)

    2010-11-24

    ...-AA00 Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliot Bay, Seattle, WA AGENCY: Coast Guard...) entitled ``Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliot Bay, Seattle, WA'' (Docket number... ensuring participant, spectator and maritime safety. The Captain of the Port, Puget Sound may be assisted...

  6. 75 FR 8563 - Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA

    Science.gov (United States)

    2010-02-25

    ...-AA00 Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA AGENCY: Coast Guard... Fleet Week Maritime Festival. This safety zone is necessary as these events have historically resulted... the safety of life and property on navigable waters during the annual Fleet Week Maritime Festival...

  7. On the Applications of Modern Educational Technology in Maritime English Teaching from the Perspective of Constructivism

    Science.gov (United States)

    Cui, Zhongliang

    2010-01-01

    Nowadays maritime transportation has become a major modern logistics because of its large capacity and low cost. English plays a leading role in the industry of maritime transportation. It is the most important medium and an indispensable communication tool in international business and global marine industry. Maritime English teaching has made…

  8. Maritime insurance as a way to struggle piracy

    Directory of Open Access Journals (Sweden)

    Ekaterina S. Anyanova

    2016-09-01

    Full Text Available Objective to research the features of maritime insurance from the viewpoint of fighting piracy at international level and to define the ways to improve the legal norms in this sphere. Methods dialectic method of cognition and private scientific research methods formallegal systemicstructural sociallegal comparativelegal statistical. Results basing on the analysis of normative legal acts regulating the relations in the sphere of maritime insurance as one of the ways to struggle against piracy the insufficiency of unified insurance norms at internationallegal level is revealed features of modern piracy are identified as well as the dependence of the insurance cost on the piratesrsquo activity the state of legal protection of the shipownerrsquos interests in case of piratesrsquo attacks at international routes a conclusion is made that the difficulties with the ldquopiracyrdquo notion do not hinder its fullfledged research in international law the drawbacks of the piracy concept in international law are reflected the insurance legal norms are studied as well as the drawbacks in insufficient unification and stronger protection of shipowners in case of ransom payments especially in RF. Scientific novelty for the first time in the article the internationallegal features of maritime piracy are viewed as one of the measures of struggle against piracy. Practical significance the main provisions and conclusions of the article can be used in practical scientific and educational activity when dealing with the issues of maritime insurance of piracy risks.

  9. Baltic Sea Maritime Spatial Planning for Sustainable Ecosystem Services

    DEFF Research Database (Denmark)

    Hansen, Henning Sten; Schrøder, Anne Lise

    2017-01-01

    in the marine and maritime sectors with great potential for innovation and economic growth. Holistic spatial planning systems supporting sustainable development have proved themselves in terrestrial planning and are also needed at sea. Due to this reason, the BONUS BASMATI project is based on the ecosystem...... services approach to assist in assessing sustainable solutions corresponding to policy goals....

  10. Prevalence and Determinants of HIV Infection among Maritime ...

    African Journals Online (AJOL)

    adedamla

    14.15 language. Even when AIDS prevention materials are available in their working environment, their value is in serious doubt as studies have shown that. 14,16 they have minimal influence on their behaviour. No official statistics on HIV knowledge and prevalence among maritime workers in Nigeria has been reported.

  11. Arta process model of maritime clutter and targets

    CSIR Research Space (South Africa)

    McDonald, A

    2012-10-01

    Full Text Available . The validity and practicality of the ARTA process model is demonstrated by deriving models for a maritime target and for sea clutter, both from measurements and without any prior assumption regarding the distribution of measurements. This ability to generate...

  12. An Integrated Reconfigurable System for Maritime Situational Awareness

    NARCIS (Netherlands)

    Velikova, M.; Novák, P.; Huijbrechts, B.; Laarhuis, J.; Hoeksma, J.; Michels, S.

    2014-01-01

    Nowadays the maritime operational picture is characterised by a growing number of entities whose interactions and activities are constantly changing. To provide timely support in this dynamic environment, automated systems need to be equipped with tools— lacking in existing systems—for real-time

  13. The Integration of Small Satellites in Maritime Interdiction Operations (MIO)

    Science.gov (United States)

    2012-09-01

    disadvantages affect the flow of information among the nodes. 14. SUBJECT TERMS Small Satellites, Nanosatellites , Picosatellites, Maritime...49 Table 7. Nanosatellite /ground-station characterisitics ...................................... 49 Table 8. Satellite 1, 2...subclassified as microsatellites (10–100 kg), nanosatellites (1–10 kg), picosatellites (0.1–1 kg), and femtosatellites (< 0.1 kg) (Helvajian & Janson

  14. Baltic Sea Maritime Spatial Planning for Sustainable Ecosystem Services

    DEFF Research Database (Denmark)

    Hansen, Henning Sten; Schrøder, Anne Lise

    2017-01-01

    The current and potential use of the seas and oceans is often called the ‘Blue Economy’. Recently, the European Commission launched its Blue Growth Strategy on the opportunities for marine and maritime sustainable growth. The European Commission considers that Blue Growth is a long-term strategy...

  15. Predictive maintenance of maritime systems : models and challenges

    NARCIS (Netherlands)

    Tinga, T.; Tiddens, W.W.; Amoiralis, F.; Politis, M.; Cepin, Marko; Bris, Radim

    2017-01-01

    To reduce maintenance and logistic costs and increase the asset availability, a predictive maintenance concept for maritime systems is developed. In the present paper, the physics-of-failure based prognostic methods will be introduced, but also other issues related to the development and application

  16. Ship Inspection Strategies: Effects on Maritime Safety and Environmental Protection

    NARCIS (Netherlands)

    C. Heij (Christiaan); G.E. Bijwaard (Govert); S. Knapp (Sabine)

    2010-01-01

    textabstractGlobal trade depends for a large part on maritime transport, and safe ships are needed not only to protect precious cargo but also to prevent environmental damage. Flag state and port state authorities spend much effort in ship safety inspections to ensure a minimum safety level and to

  17. Ship inspection strategies: effects on maritime safety and environmental protection

    NARCIS (Netherlands)

    Heij, C.; Bijwaard, G.E.; Knapp, S.

    2011-01-01

    Global trade largely depends on maritime transport, and appropriate ships are needed to protect cargo but to minimize environmental damage and to this end, flag and port state authorities expend considerable effort in ship safety inspections. This paper investigates the safety gains of current

  18. The Challenges of Piracy in Africa's Maritime Zones | Nyakawa ...

    African Journals Online (AJOL)

    Africa, like the rest of the world, has many maritime resources which could contribute to its development. Unfortunately, these resources are illegally plundered by others. At the same time, free trade and movement in the African waters have been hampered by phenomena such as piracy and organised crime. Indeed, Africa ...

  19. Analysis of the Strategy to Combat Maritime Piracy

    Science.gov (United States)

    2009-12-11

    Combat Maritime Piracy Approved by: , Thesis Committee Chair Phillip G. Pattee , M.M.A.S. , Member Michael Mihalka, Ph.D...Center/OCA 825 John J. Kingman Rd., Suite 944 Fort Belvoir, VA 22060-6218 Phillip G. Pattee DJMO USACGSC 100 Stimson Avenue Fort Leavenworth, KS

  20. New Technologies in Maritime Education and Training, Turkish Experiment

    Science.gov (United States)

    Erdogan, Oral; Demirel, Ergun

    2017-01-01

    The aim of this study is to introduce new technologies and approaches in the maritime education and training (MET) and Turkish experiment/acquisitions/contributions including some analysis which may be helpful for the future studies on this subject. As an example of such an effort, Turkish experiment/contribution on seafaring officer education…

  1. Strategies for Teaching Maritime Archaeology in the Twenty First Century

    Science.gov (United States)

    Staniforth, Mark

    2008-12-01

    Maritime archaeology is a multi-faceted discipline that requires both theoretical learning and practical skills training. In the past most universities have approached the teaching of maritime archaeology as a full-time on-campus activity designed for ‘traditional’ graduate students; primarily those in their early twenties who have recently come from full-time undergraduate study and who are able to study on-campus. The needs of mature-age and other students who work and live in different places (or countries) and therefore cannot attend lectures on a regular basis (or at all) have largely been ignored. This paper provides a case study in the teaching of maritime archaeology from Australia that, in addition to ‘traditional’ on-campus teaching, includes four main components: (1) learning field methods through field schools; (2) skills training through the AIMA/NAS avocational training program; (3) distance learning topics available through CD-ROM and using the Internet; and (4) practicums, internships and fellowships. The author argues that programs to teach maritime archaeology in the twenty first century need to be flexible and to address the diverse needs of students who do not fit the ‘traditional’ model. This involves collaborative partnerships with other universities as well as government underwater cultural heritage management agencies and museums, primarily through field schools, practicums and internships.

  2. 77 FR 1076 - National Maritime Security Advisory Committee; Meeting

    Science.gov (United States)

    2012-01-09

    ... Government; (2) Maritime Transportation Security Act/Chemical Facility Anti- Terrorism Standards... also provide an update on the development of TWIC readers; (4) Public comment period. Day 2 (1... while in US ports; (4) Underwater Terrorism Preparedness Program. NMSAC will receive a brief on the...

  3. The independent Baltic states: Maritime law and resource management implications

    International Nuclear Information System (INIS)

    Canfield, J.L.

    1993-01-01

    The achievement of independence by the Baltic states impacts nearly all aspects of the maritime law and resource management regimes appertaining to the Baltic Sea. The unique position of these states, given their maritime history and role as a bridge between East and West, warrants reconsideration. The Baltic Sea basin is among the most highly industrialized shorelines in the world, accounting for approximately 15% of world industrial output, and is relatively dense in population. Large quantities of pollutants water its waters by way of industrial, agricultural, and municipal waste. A lack of adequate sewage treatment accounts for much of the waste. The Baltic is also especially sensitive to oil pollution as the relatively cold water inhibits bacteriological breakdown. Important issues of maritime border delimitation, treaty devolution, and the potential for reinstitution of exclusionary regimes reappeared with the attainment of independence. Further, the legacy of Soviet maritime environment and resource management has engendered fundamental political, social, and economic conflicts for which resources and effective management structures are lacking. The competing requirements of economic development, reintegration into Western markets, and management of critical marine resources highlights the need for comprehensive and regionally focused approaches to the problems identified

  4. Maritime improvised explosive devices, modelling and large scale trials

    NARCIS (Netherlands)

    Heuvel, W. van den; Trouwborst, W.; Vader, J.A.A.

    2013-01-01

    Maritime Improvised Explosive Devices (MIEDs) such as small boats filled with explosives are likely to be a threat in future combat scenarios. For example the suicide attack against the USS Cole in Yemen (October 2000) has shown how disastrous MIEDs can be. With relatively simple means a complete

  5. TD-LTE maritime trunking communication system based on TVWS

    Science.gov (United States)

    Ren, Chunxiang; Chen, Xing; Li, Wanchao; Chen, Baodan

    2014-10-01

    This paper collects the measurement results of 470 MHZ-960MHZ spectrum in the coastal areas, and analyzes the characteristics of TV broadcast spectrum occupancy in the measurement region. Moreover, this article proposes construct the TD-LTE maritime trunking communication system using geolocation database, television database (TVDB) and cognitive radio (CR) technology.

  6. Understanding Attrition in UK Maritime Education and Training

    Science.gov (United States)

    Gekara, Victor

    2009-01-01

    The shipping industry worldwide is experiencing a shortage of trained and qualified officers to operate a rapidly expanding global merchant fleet. High cadet wastage in Maritime Education and Training (MET) institutions is an obstacle to skills replenishment in the UK. This paper examines the specificity of MET programmes with regard to the…

  7. Productivity simulation model for optimization of maritime container terminals

    Directory of Open Access Journals (Sweden)

    Elen TWRDY

    2009-01-01

    Full Text Available This article describes a proposed productivity simulation model enabling container terminal operators to find optimization possibilities. A research of more than forty terminals has been done, in order to provide a helping tool for maritime container terminals. By applying an adequate simulation model, it is possible to measure and increase the productivity in all subsystem of the maritime container terminal. Management of a maritime container terminal includes a vast number of different financial and operational decisions. Financial decisions are often in a direct connection with investments in infrastructure and handling equipment. Such investments are very expensive. Therefore, they must give back the invested money as soon as possible. On the other hand, some terminals are limited by the physical extension and are forced to increase annual throughput only with sophisticated equipment on the berth side and on the yard as well. Considering all these important facts in container and shipping industry, the proposed simulation model gives a helping tool for checking the productivity and its time variation and monitoring competitiveness of a certain maritime terminal with terminals from the same group.

  8. The Role and Relevance of Mathematics in the Maritime Industry

    African Journals Online (AJOL)

    kofi.mereku

    considerations on issues bordering on the mathematics teaching and learning for Maritime. Business ..... approaches to logistics, warehousing, and facility location have been practiced at least since the. 1950s. The new ... human resources, finance, supply chain management, facility location, risk management, and.

  9. Page PROBLEMS OF LITIGATION IN SETTLEMENT OF MARITIME

    African Journals Online (AJOL)

    Fr. Ikenga

    2013-08-01

    Aug 1, 2013 ... disputes are an ever present feature of the Nigerian commercial landscape'.4 The Dollar investments in free trade zones are also bound to increase the level of commercial interactions and potentials for disputes. More still, it .... negotiation, conciliation, mediation and arbitration. In Nigeria, maritime law falls ...

  10. Maritime Anomaly Detection by Fusing Sensor Information and Intelligence

    NARCIS (Netherlands)

    Broek, A.C. van den; Neef, R.M.; Hanckmann, P.; Smith, A.J.E.

    2011-01-01

    Because of global economic and socio-political changes, an increase of conflicts near the world's coastlines is anticipated. The littoral zone is characterized by intense regular vessel traffic. The conduct of Maritime Security Operations and Peace support Operations therefore means that navies have

  11. Maritime piracy situation modelling with dynamic Bayesian networks

    CSIR Research Space (South Africa)

    Dabrowski, James M

    2015-05-01

    Full Text Available A generative model for modelling maritime vessel behaviour is proposed. The model is a novel variant of the dynamic Bayesian network (DBN). The proposed DBN is in the form of a switching linear dynamic system (SLDS) that has been extended into a...

  12. Problems of litigation in settlement of maritime disputes for Nigeria ...

    African Journals Online (AJOL)

    Nnamdi Azikiwe University Journal of International Law and Jurisprudence ... The paper argues that arbitration is preferable to litigation as a result of parties' autonomy to choose their arbitrators, the applicable laws, and the forum of arbitration. ... Keywords: Maritime arbitration, Litigation, Settlement of Disputes, Law, Nigeria ...

  13. European Institutional and Organisational Tools for Maritime Human Resources Development

    OpenAIRE

    Dragomir Cristina

    2012-01-01

    Seafarers need to continuously develop their career, at all stages of their professional life. This paper presents some tools of institutional and organisational career development. At insitutional level there are presented vocational education and training tools provided by the European Union institutions while at organisational level are exemplified some tools used by private crewing companies for maritime human resources assessment and development.

  14. Prevalence and determinants of HIV infection among maritime ...

    African Journals Online (AJOL)

    Background: In the global maritime industry, seafarers, fishing, seaport and other land-based personnel face a rising risk of infection of sexually transmitted diseases, including Human Immuno Virus (HIV). The close proximity of brothels and large sex-worker populations, as well as the fact that many seafarers are young, ...

  15. Improved maritime situation awareness by fusing sensor information with intelligence

    NARCIS (Netherlands)

    Broek, A.C. van den; Deves, T.K.G.; Neef, R.M.; Smith, A.J.E.

    2010-01-01

    In present-day military security operations threats are more difficult to reveal than inconventional warfare theatres, since they take place during the course of normal life. For example, during maritime missions in littoral environments, acts of piracy, drug trafficking and other threatening events

  16. Problems of use of preliminary information technology in maritime passes

    Directory of Open Access Journals (Sweden)

    Elena I. Antonova

    2017-12-01

    Full Text Available The technology of preliminary informing is the priority direction of development of information technologies in the customs authorities. Russian model prior information on Maritime transport contains a number of features that distinguish it from world practice. The studied is the possibility of creating a unified information system of state regulatory bodies in the Maritime checkpoints. The article considers one of directions of automation of information interaction between Maritime stakeholders in the conduct of customs and other types of state control with the use of a single information space, based on the then-experimental solutions. Analysis of experience of implementation and operation of the software complex "Portal port" in the region of the Vladivostok customs have helped to identify problems in the application of the technology of preliminary information on Maritime transport. The proposed solutions to these problems provide an opportunity to work on improvement of this technology and to introduce mandatory preliminary notification in all sea checkpoints on the territory of the Russian Federation, will allow to optimize the performance of customs and other state Supervisory authorities at the seaport, us-blame the turnover and will contribute to the development of the far Eastern region as a whole.

  17. The Maritime Performing Party in the Rotterdam Rules 2009

    NARCIS (Netherlands)

    F.G.M. Smeele (Frank)

    2010-01-01

    textabstractINTRODUCTION. In an attempt to deal uniformly with several complex and delicate legal issues that have divided the seafaring nations of the world for most of the last century, the Rotterdam Rules 2009 (hereafter: RR) introduce the concept of the “maritime performing party”. This is a

  18. Improving maritime situational awareness by fusing sensor information and intelligence

    NARCIS (Netherlands)

    Broek, A.C. van den; Neef, R.M.; Hanckmann, P.; Gosliga, S.P. van; Halsema, D. van

    2011-01-01

    In present-day military security operations threats are more difficult to reveal than in conventional warfare theatres, since they take place during the course of normal life. These maritime missions often take place in littoral environments, where acts of piracy, drug trafficking and other

  19. Expansion of the Reporting System Paradigm to the United States Maritime Industry

    OpenAIRE

    Bixler, Jeffrey A.

    2009-01-01

    This paper focuses on the creation of a U.S. maritime reporting system designed to alert the industry of safety incidents and prevent accidents. A brief history of aviation safety reporting will be provided, followed by an analysis of eight recent U.S. maritime accidents that reveal a gap in maritime safety information sharing. This paper will also describe the United Kingdom’s maritime reporting system and the previous work completed on a U.S. maritime reporting system. This paper concludes ...

  20. Variable flow controls of closed system pumps for energy savings in maritime power systems

    DEFF Research Database (Denmark)

    Su, Chun-Lien; Liao, Chi-Hsiang; Chou, Tso-Chu

    2016-01-01

    pumps on marine vessels. The existing problem of traditional control methods for closed system pumps is analyzed and a mathematical model for variable flow controls with the appropriate control settings is derived. The performance of the proposed method is demonstrated and verified through experimental...... and field tests of a practical auxiliary boiler feed water management system on a commercial vessel. It is proved that the proposed method can maintain constant water pressure for closed system pumps and provide an efficient way to measure energy savings and maintenance benefits. The results serve......Pumps are extensively used in maritime industries as marine vessels utilize a wide range of pumps and pumping techniques to transfer and distribute all types of air and fluids. The electrical energy consumed by the various motors accounts for about 70% of a vessel’s total power consumption...

  1. Polar boundary layer bromine explosion and ozone depletion events in the chemistry-climate model EMAC v2.52: implementation and evaluation of AirSnow algorithm

    Science.gov (United States)

    Falk, Stefanie; Sinnhuber, Björn-Martin

    2018-03-01

    Ozone depletion events (ODEs) in the polar boundary layer have been observed frequently during springtime. They are related to events of boundary layer enhancement of bromine. Consequently, increased amounts of boundary layer volume mixing ratio (VMR) and vertical column densities (VCDs) of BrO have been observed by in situ observation, ground-based as well as airborne remote sensing, and from satellites. These so-called bromine explosion (BE) events have been discussed serving as a source of tropospheric BrO at high latitudes, which has been underestimated in global models so far. We have implemented a treatment of bromine release and recycling on sea-ice- and snow-covered surfaces in the global chemistry-climate model EMAC (ECHAM/MESSy Atmospheric Chemistry) based on the scheme of Toyota et al. (2011). In this scheme, dry deposition fluxes of HBr, HOBr, and BrNO3 over ice- and snow-covered surfaces are recycled into Br2 fluxes. In addition, dry deposition of O3, dependent on temperature and sunlight, triggers a Br2 release from surfaces associated with first-year sea ice. Many aspects of observed bromine enhancements and associated episodes of near-complete depletion of boundary layer ozone, both in the Arctic and in the Antarctic, are reproduced by this relatively simple approach. We present first results from our global model studies extending over a full annual cycle, including comparisons with Global Ozone Monitoring Experiment (GOME) satellite BrO VCDs and surface ozone observations.

  2. THE ANALYSIS OF HUMAN RESOURCES MANAGEMENT (HRM IN MARITIME AFFAIRS

    Directory of Open Access Journals (Sweden)

    Goran Vučur

    2016-12-01

    Full Text Available Specifics of human resources management in maritime affairs is reflected in the fact that part of the staff of enterprises is displaced on ships which represent a specific and isolated environment. Specifics of human resources management on ships are focused to decision-making in crisis situations, the deployment of personnel and work load, and giving orders to perform certain tasks. In this context it is necessary to examine the management of human resources which should include managing, motivation, rewarding, communication, education, advancement, decision-making and employee satisfaction in the specific environment. The aim of the research is to analyze the above stated parameters and connect them with the characteristics of companies in the sector of maritime logistics. The purpose of this paper is to provide an insight into the human resources management in companies involved in logistics in maritime transport i.e. delivery and transport of goods. Taking into account their differences, it can be concluded that companies in the maritime industry have different human resource management systems, which affects the company's business. The research methodology is based on the collection of data through questionnaires and databases created from them. The study included a total of 31 companies. According to the collected data, statistical analysis will be conducted which will be based on correlation and descriptive statistics. The analysis of the theoretical basis has not confirmed the existence of similar studies that take into account the observation of human resources management on ships. Therefore, it can be concluded that the research will be of interest for the field of business logistics as well as the whole scientific and professional community. Recommendations related to the current and future human resource management in maritime companies will be given in the conclusion.

  3. Maritimes natural gas market : an overview and assessment

    International Nuclear Information System (INIS)

    Booth, G.

    2003-01-01

    In 1987, Canada's National Energy Board (NEB) adopted a market-based procedure (MBP) to assess long-term gas exports. The MPB included monitoring and assessment of Maritimes natural gas markets. The NEB is responsible for interprovincial and international oil and gas pipelines as well as tolls and tariffs on NEB-regulated pipelines. The NEB is also responsible for electricity and natural gas exports and exploration programs on federally regulated lands not covered by an Accord agreement. The province of New Brunswick requested a new set of rules for the export of natural gas from the Maritimes to ensure competitiveness with other jurisdictions. The NEB decided that the public interest is best served by allowing the market to work. It also decided that the developing Maritimes market faces several challenges not faced by buyers in the export market. It was concluded that the market is working reasonably well to meet the needs of domestic consumers. 20 per cent of Scotian gas is being used in the Maritimes and many laterals have been constructed to extend service. Most major population centres have natural gas. However, there is no residential or commercial natural gas service in Nova Scotia, and only limited penetration of natural gas in residential and commercial markets in New Brunswick. Maritimers have a long history of using other fuel options and must make capital investment to switch to natural gas. They must, therefore, be convinced that investment will pay off in fuel savings and other benefits. The NEB will have to improve price transparency and strive for regulatory efficiency and cooperation with other jurisdictions. 2 figs

  4. R&D in the maritime industry : a supplement to an assessment of maritime trade and technology

    Science.gov (United States)

    1985-05-01

    Since the publication of "An Assessment of Maritime Trade and Technology" by Office of Technology Assessment (OTA) in October 1983, various proposals have been made to provide incentives for research and development (R&D) in an effort to enhance the ...

  5. Polar boundary layer bromine explosion and ozone depletion events in the chemistry–climate model EMAC v2.52: implementation and evaluation of AirSnow algorithm

    Directory of Open Access Journals (Sweden)

    S. Falk

    2018-03-01

    Full Text Available Ozone depletion events (ODEs in the polar boundary layer have been observed frequently during springtime. They are related to events of boundary layer enhancement of bromine. Consequently, increased amounts of boundary layer volume mixing ratio (VMR and vertical column densities (VCDs of BrO have been observed by in situ observation, ground-based as well as airborne remote sensing, and from satellites. These so-called bromine explosion (BE events have been discussed serving as a source of tropospheric BrO at high latitudes, which has been underestimated in global models so far. We have implemented a treatment of bromine release and recycling on sea-ice- and snow-covered surfaces in the global chemistry–climate model EMAC (ECHAM/MESSy Atmospheric Chemistry based on the scheme of Toyota et al. (2011. In this scheme, dry deposition fluxes of HBr, HOBr, and BrNO3 over ice- and snow-covered surfaces are recycled into Br2 fluxes. In addition, dry deposition of O3, dependent on temperature and sunlight, triggers a Br2 release from surfaces associated with first-year sea ice. Many aspects of observed bromine enhancements and associated episodes of near-complete depletion of boundary layer ozone, both in the Arctic and in the Antarctic, are reproduced by this relatively simple approach. We present first results from our global model studies extending over a full annual cycle, including comparisons with Global Ozone Monitoring Experiment (GOME satellite BrO VCDs and surface ozone observations.

  6. Strategic Polarization.

    Science.gov (United States)

    Kalai, Adam; Kalai, Ehud

    2001-08-01

    In joint decision making, similarly minded people may take opposite positions. Consider the example of a marriage in which one spouse gives generously to charity while the other donates nothing. Such "polarization" may misrepresent what is, in actuality, a small discrepancy in preferences. It may be that the donating spouse would like to see 10% of their combined income go to charity each year, while the apparently frugal spouse would like to see 8% donated. A simple game-theoretic analysis suggests that the spouses will end up donating 10% and 0%, respectively. By generalizing this argument to a larger class of games, we provide strategic justification for polarization in many situations such as debates, shared living accommodations, and disciplining children. In some of these examples, an arbitrarily small disagreement in preferences leads to an arbitrarily large loss in utility for all participants. Such small disagreements may also destabilize what, from game-theoretic point of view, is a very stable equilibrium. Copyright 2001 Academic Press.

  7. Weathering the Storm: Unmanned Aircraft Systems in the Maritime, Atmospheric and Polar Environments

    Science.gov (United States)

    Fladeland, Matthew M.; Sullivan, Donald V.; Chirayath, Ved; Instrella, Ron; Phelps, Geoffrey

    2017-01-01

    Remotely piloted aircraft (RPA) have the potential to revolutionize local to regional data collection for geophysicists as platform and payload size decrease while aircraft capabilities increase. In particular, data from RPAs combine high-resolution imagery available from low flight elevations with comprehensive areal coverage, unattainable from ground investigations and difficult to acquire from manned aircraft due to budgetary and logistical costs. Low flight elevations are particularly important for detecting signals that decay exponentially with distance, such as electromagnetic fields. Onboard data processing coupled with high-bandwidth telemetry open up opportunities for real-time and near real-time data processing, producing more efficient flight plans through the use of payload-directed flight, machine learning and autonomous systems. Such applications not only strive to enhance data collection, but also enable novel sensing modalities and temporal resolution. NASAs Airborne Science Program has been refining the capabilities and applications of RPA in support of satellite calibration and data product validation for several decades. In this paper, we describe current platforms, payloads, and onboard data systems available to the research community. Case studies include Fluid Lensing for littoral zone 3D mapping, structure from motion for terrestrial 3D multispectral imaging, and airborne magnetometry on medium and small RPAs.

  8. Mathematical and Numerical Modeling in Maritime Geomechanics

    Directory of Open Access Journals (Sweden)

    Miguel Martín Stickle

    2012-04-01

    Full Text Available A theoretical and numerical framework to model the foundation of marine offshore structures is presented. The theoretical model is composed by a system of partial differential equations describing coupling between seabed solid skeleton and pore fluids (water, air, oil,... combined with a system of ordinary differential equations describing the specific constitutive relation of the seabed soil skeleton. Once the theoretical model is described, the finite element numerical procedure to achieve an approximate solution of the overning equations is outlined. In order to validate the proposed theoretical and numerical framework the seaward tilt mechanism induced by the action of breaking waves over a vertical breakwater is numerically reproduced. The results numerically attained are in agreement with the main conclusions drawn from the literature associated with this failure mechanism.

  9. Decarbonization of maritime transport: to be or not to be?

    DEFF Research Database (Denmark)

    Psaraftis, Harilaos N.

    2018-01-01

    International shipping is at a crossroads as regards decarbonization. The Paris climate change agreement in 2015 (COP21) was hailed by many as a most significant achievement. Others were less enthusiastic, and more recently American President Trump decided to take the U.S. out of the agreement....... Four years earlier, the International Maritime Organization (IMO) had adopted the most sweeping piece of regulation pertaining to maritime greenhouse gas (GHG) reduction, in the name of the Energy Efficiency Design Index (EEDI). In addition, one year after COP21, the IMO adopted a mandatory data...... is to be successful. Difficulties and opportunities are identified, and the paper conjectures that the main obstacles are neither technical nor economic, but political....

  10. Harmonic distortions measured on board of a maritime vessel

    Science.gov (United States)

    Zburlea, Elena; Dordea, Stefan

    2016-12-01

    Measurements where performed on four channels by means of an autonomous equipment (galvanic separated and not supplied from the ship's mains) performed on board of some maritime transport vessels, inside the Port of Constanţa aquatorium. Distorted voltages where state in the distribution panels. The sources of those distortions are the switching power supplies of the electric drives. The novelty of our work states in performing those measurements during the inside port maneuvers, when the operating time of each electric equipment is non definable. Harmonic distortions caused by the switching power converters lower the Power Factor. There is no better manner to find out the main distortions sources on board of a maritime transport vessel than to perform the measurements directly, on each location.

  11. Probabilistic Risk Assessment on Maritime Spent Nuclear Fuel Transportation

    Energy Technology Data Exchange (ETDEWEB)

    Christian, Robby; Kang, Hyun Gook [KAIST, Daejeon (Korea, Republic of)

    2016-05-15

    Spent nuclear fuel (SNF) management has been an indispensable issue in South Korea. Before a long term SNF solution is implemented, there exists the need to distribute the spent fuel pool storage loads. Transportation of SNF assemblies from populated pools to vacant ones may preferably be done through the maritime mode since all nuclear power plants in South Korea are located at coastal sites. To determine its feasibility, it is necessary to assess risks of the maritime SNF transportation. This work proposes a methodology to assess the risk arising from ship collisions during the transportation of SNF by sea. Its scope is limited to the damage probability of SNF packages given a collision event. The effect of transport parameters' variation to the package damage probability was investigated to obtain insights into possible ways to minimize risks. A reference vessel and transport cask are given in a case study to illustrate the methodology's application.

  12. Agent-based Simulation of the Maritime Domain

    Directory of Open Access Journals (Sweden)

    O. Vaněk

    2010-01-01

    Full Text Available In this paper, a multi-agent based simulation platform is introduced that focuses on legitimate and illegitimate aspects of maritime traffic, mainly on intercontinental transport through piracy afflicted areas. The extensible architecture presented here comprises several modules controlling the simulation and the life-cycle of the agents, analyzing the simulation output and visualizing the entire simulated domain. The simulation control module is initialized by various configuration scenarios to simulate various real-world situations, such as a pirate ambush, coordinated transit through a transport corridor, or coastal fishing and local traffic. The environmental model provides a rich set of inputs for agents that use the geo-spatial data and the vessel operational characteristics for their reasoning. The agent behavior model based on finite state machines together with planning algorithms allows complex expression of agent behavior, so the resulting simulation output can serve as a substitution for real world data from the maritime domain.

  13. SECURITY MODELING FOR MARITIME PORT DEFENSE RESOURCE ALLOCATION

    Energy Technology Data Exchange (ETDEWEB)

    Harris, S.; Dunn, D.

    2010-09-07

    Redeployment of existing law enforcement resources and optimal use of geographic terrain are examined for countering the threat of a maritime based small-vessel radiological or nuclear attack. The evaluation was based on modeling conducted by the Savannah River National Laboratory that involved the development of options for defensive resource allocation that can reduce the risk of a maritime based radiological or nuclear threat. A diverse range of potential attack scenarios has been assessed. As a result of identifying vulnerable pathways, effective countermeasures can be deployed using current resources. The modeling involved the use of the Automated Vulnerability Evaluation for Risks of Terrorism (AVERT{reg_sign}) software to conduct computer based simulation modeling. The models provided estimates for the probability of encountering an adversary based on allocated resources including response boats, patrol boats and helicopters over various environmental conditions including day, night, rough seas and various traffic flow rates.

  14. Report 11HL: Technologies for Trusted Maritime Situational Awareness

    Science.gov (United States)

    2011-10-01

    connaissance de la situation. Le présent projet a aidé à élucider ce changement . Perspectives : Les sources de données, les algorithmes et les...of trust management for defence, security and safety applications in maritime domains...Information and Knowledge Management (MIKM) group at DRDC Atlantic. As the managing group, MIKM was responsible for the organization, execution, and

  15. Characterizing and Exploring the Implications of Maritime Irregular Warfare

    Science.gov (United States)

    2012-01-01

    is to eventually inte- grate the system with similar systems in Indonesia and Malaysia . 30 Characterizing and Exploring the Implications of Maritime...Coast Guard, “In the 1980s we were track- ing and chasing cigarette boats that traveled twenty knots per hour, and soon go-fast boats with three, four...32 SPSSs over the previous decade, including 12 in 2010 alone (Uribe, 2011). These statistics may be misleading, however. As noted earlier, only

  16. Operations Research In Maritime Transport And Freight Logistics

    Directory of Open Access Journals (Sweden)

    Shubham Tuslyan

    2017-11-01

    Full Text Available Todays globalization would be impossible without modern cost-effective merchant ships crossing the seas. World trade was 17 times as high at the end of the 20th century as it was 50 years previously. A shipping industry that has steadily lowered its costs has been a prerequisite of this development and there are no signs that the world economy will rely any less heavily on sea transport in the future. The current decade has witnessed a remarkable growth in container transportation and vessel sizes India is the 20th largest maritime country in the world. Its strategic location of a long coastline that flanks important global shipping routes makes it a major maritime nation. The maritime sector in India comprises of ports shipping shipbuilding and ship repair as well as inland water transport systems. About 95 of the countrys trade by volume and 70 by value is moved through maritime transport.Among the problems to be solved there are the spatial allocation of containers on the terminal yard optimization of shipping routes allocation of ships to berths and cranes allocation of cargo to ships scheduling priorities and operations in order to maximize performances based on some economic indicators. During the evaluation of the identified studies it becomes clear that the existing literature can be further subdivided into analytical simulation and combined approaches. The majority of the papers 212 out of 243 or 87 adopted analytical approaches that exclusively apply optimization algorithms to optimize container terminal operations. However in order to optimize the entire container terminal operations the use of this approach to simultaneously deal with different types of problems is difficult although not impossible especially in regard to stand-alone components. This is a major limitation of the widely used analytical approaches in traditional literature.

  17. Maritime Tactical Command and Control Analysis of Alternatives

    Science.gov (United States)

    2016-01-01

    Maritime Tactical Command and Control Analysis of Alternatives Bradley Wilson, Isaac R. Porche III, Mel Eisman, Michael Nixon, Shane Tierney, John ...M. Yurchak, Kim Kendall, James Dryden , Sean Critelli C O R P O R A T I O N Limited Print and Electronic Distribution Rights This document and...missile destroyer USS Ross (U.S. Navy photo by Mass Communication Specialist 2nd Class John Herman/Released). iii Preface This report is about

  18. Teamwork and Safety in the Maritime Industry: A SWOT Approach

    OpenAIRE

    Vestad, Anne-Lise

    2010-01-01

    Abstract The past few decades the use of teams has increased, also in complex sociotechnical systems such as the maritime industry. Safety issues involve a wide range of elements, including human factors, and pose a number of challenges to organisations in the shipping industry. The primary aim of this study was to examine the Big Five of teamwork model and its ability to capture teamwork aspects of all kinds of teams, independent of team type, organisational level and domain. The collect...

  19. Wide-Area Persistent Energy-Efficient Maritime Sensing

    Science.gov (United States)

    2015-09-30

    sensor data can be processed coherently or incoherently to achieve synoptic maritime sensing over a wide area. OBJECTIVES 1) Development of a...use this testbed to collect on the open water to confirm operation at sea. Figure 4: Block diagram and picture of the Arduino-based...including ship self-protection, anti-submarine warfare, synoptic oceanographic field measurement, and harbor security. In particular, the reduction

  20. Charting a course to maritime excellence in South Africa

    CSIR Research Space (South Africa)

    Funke, Nicola S

    2017-10-01

    Full Text Available on the alignment and coordination of legislation and policies 3 Conduct research on institutional reforms that need to be implemented 4 Strengthen relations with African and other countries regarding maritime matters 6 Conduct research on governance... economic growth 6 Focus on job creation 2 Invest in training for scarce skills 1 Support communities to live sustainably 3 Develop subsidies and financial incentives 4 Support regional and port development 6 Promote catalytic economic initiatives 5...

  1. Maritime Law Enforcement: A Critical Capability for the Navy?

    Science.gov (United States)

    2012-03-01

    Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202–4302, and to the Office of Management and Budget, Paperwork Reduction...enforcement authorities that complement, hopefully, what you all do. Can you just comment on that briefly? Admiral HARRIS. Yes, sir , I would be glad to...366 Admiral Humphry Smith cited in Till, Seapower, 359. 367 Till, Seapower, 359; Murphy, “Suppression of Piracy and Maritime Terrorism: A Suitable

  2. The Eastern Mediterranean: energy, maritime security and strategic alliances

    OpenAIRE

    İlter, Kağan

    2012-01-01

    Reissued 13 Mar 2013 to rearrange reference list and change distribution code from F to A. Approved for public release, distribution unlimited Energy and maritime-history affairs have played particularly important parts in the alignment of regional and international relations in the Eastern Mediterranean, and Turkey has played a pivotal regional role in all these matters. This study examines the role of Turkey as it explores the Middle East more generally, from World War II to the prese...

  3. Mass Processing of Sentinel-1 Images for Maritime Surveillance

    Directory of Open Access Journals (Sweden)

    Carlos Santamaria

    2017-07-01

    Full Text Available The free, full and open data policy of the EU’s Copernicus programme has vastly increased the amount of remotely sensed data available to both operational and research activities. However, this huge amount of data calls for new ways of accessing and processing such “big data”. This paper focuses on the use of Copernicus’s Sentinel-1 radar satellite for maritime surveillance. It presents a study in which ship positions have been automatically extracted from more than 11,500 Sentinel-1A images collected over the Mediterranean Sea, and compared with ship position reports from the Automatic Identification System (AIS. These images account for almost all the Sentinel-1A acquisitions taken over the area during the two-year period from the start of the operational phase in October 2014 until September 2016. A number of tools and platforms developed at the European Commission’s Joint Research Centre (JRC that have been used in the study are described in the paper. They are: (1 Search for Unidentified Maritime Objects (SUMO, a tool for ship detection in Synthetic Aperture Radar (SAR images; (2 the JRC Earth Observation Data and Processing Platform (JEODPP, a platform for efficient storage and processing of large amounts of satellite images; and (3 Blue Hub, a maritime surveillance GIS and data fusion platform. The paper presents the methodology and results of the study, giving insights into the new maritime surveillance knowledge that can be gained by analysing such a large dataset, and the lessons learnt in terms of handling and processing the big dataset.

  4. Maritime Search and Rescue via Multiple Coordinated UAS

    Science.gov (United States)

    2017-06-12

    Multiple Autonomous Unmanned Aerial Vehicles: An Integer Programming Approach (2014) 16. Lin, R.L.: UAV Intelligent Path Planning for Wilderness Search and...Noname manuscript No. (will be inserted by the editor) Maritime Search and Rescue via Multiple Coordinated UAS Dieter W. Schuldt · Joel Kurucar...performed by a set of UAS. Our investigation covers the detection of multiple mobile objects by a heterogeneous collection of UAS. Three methods (two

  5. Maritime Security In South East Asia: Indonesian Perspective

    OpenAIRE

    Ariadno, Melda Kamil Kamil

    2009-01-01

    Maritime security is an important issue particularly for the archipelagic state. As the largest archipelagic state in the world, Indonesia has its own responsibility to guard its waters from any threat. Indonesian waters have been used for centuries to accelerate International trade. In addition, Indonesia needs to address its boundary problems, handling of piracy, combating Transnational Organized Crime, such as, human trafficking, drugs trafficking, and human smuggling. This article explai...

  6. ECDIS Users Genuine Qualification in Maritime Industry Great Demand

    Directory of Open Access Journals (Sweden)

    Wojciech Legiec

    2016-12-01

    Full Text Available In this paper author summarizes present maritime industry growing preference for highly qualified officers in the field of ECDIS operation. Current ECDIS training internationally recognised requirements are described including Manila amendments and Polish approach to the IMO Model course 1.27. Various forms of training available nowadays are presented within the paper. Advantages and disadvantages of each method are identified. Author outlines the necessity of improving ECDIS trainers’ competency.

  7. Generalized Hough Transform for Object Classification in the Maritime Domain

    Science.gov (United States)

    2015-12-01

    23 Figure 11. An example of a change in the energy distribution of resized images ......24 Figure 12. Flowchart of the...INTENTIONALLY LEFT BLANK 1 I. INTRODUCTION Computer vision for ocean imagery is a growing research area for detection of objects-of-interest...maritime operations. The superiority in information warfare can improve the chances of victory. To achieve a large area of coverage and speedy

  8. Implementation of Multiple Access Techniques Applicable for Maritime Satellite Communications

    OpenAIRE

    Stojce Dimov Ilcev

    2013-01-01

    In this paper are introduced fundamentals, characteristics, advantages and disadvantages of Multiple Access (MA) employed as transmission techniques in the Maritime Mobile Satellite Communications (MMSC) between ships and Coast Earth Station (CES) via Geostationary Earth Orbit (GEO) or Not-GEO satellite constellations. In fixed satellite communication, as a rule, especially in MMSC many users are active at the same time. The problem of simultaneous communications between many single or multip...

  9. Indonesian Maritime Security Cooperation In the Malacca Straits

    Science.gov (United States)

    2015-06-01

    218 Dato Tun Abdul Razak, “Enhancing Maritime Security Cooperation” ( speech given at Shangri-La Dialogue 2005, Fifth Plenary Session...Cooperation.” Speech given at the Shangri-La Dialogue 2005, Fifth Plenary Session, Singapore, June 5, 2005. Rothwell, Donald R., and Tim Stephens...0001.html. 117 The idea initially derived from the former PM Sjahril’s speech in February 1948. Muhammad Hatta was the first to articulate the

  10. Precessing deuteron polarization

    International Nuclear Information System (INIS)

    Sitnik, I.M.; Volkov, V.I.; Kirillov, D.A.; Piskunov, N.M.; Plis, Yu.A.

    2002-01-01

    The feasibility of the acceleration in the Nuclotron of deuterons polarized in the horizontal plane is considered. This horizontal polarization is named precessing polarization. The effects of the main magnetic field and synchrotron oscillations are included. The precessing polarization is supposed to be used in studying the polarization parameters of the elastic dp back-scattering and other experiments

  11. Spatial, Temporal and Spatio-Temporal Patterns of Maritime Piracy.

    Science.gov (United States)

    Marchione, Elio; Johnson, Shane D

    2013-11-01

    To examine patterns in the timing and location of incidents of maritime piracy to see whether, like many urban crimes, attacks cluster in space and time. Data for all incidents of maritime piracy worldwide recorded by the National Geospatial Intelligence Agency are analyzed using time-series models and methods originally developed to detect disease contagion. At the macro level, analyses suggest that incidents of pirate attacks are concentrated in five subregions of the earth's oceans and that the time series for these different subregions differ. At the micro level, analyses suggest that for the last 16 years (or more), pirate attacks appear to cluster in space and time suggesting that patterns are not static but are also not random. Much like other types of crime, pirate attacks cluster in space, and following an attack at one location the risk of others at the same location or nearby is temporarily elevated. The identification of such regularities has implications for the understanding of maritime piracy and for predicting the future locations of attacks.

  12. Formal Vulnerability Assessment of a maritime transportation system

    International Nuclear Information System (INIS)

    Berle, Oyvind; Asbjornslett, Bjorn Egil; Rice, James B.

    2011-01-01

    World trade increasingly relies on longer, larger and more complex supply chains, where maritime transportation is a vital backbone of such operations. Long and complex supply chain systems are more prone to being vulnerable, though through reviews, no specific methods have been found to assess vulnerabilities of a maritime transportation system. Most existing supply chain risk assessment frameworks require risks to be foreseen to be mitigated, rather than giving transportation systems the ability to cope with unforeseen threats and hazards. In assessing cost-efficiency, societal vulnerability versus industrial cost of measures should be included. This conceptual paper presents a structured Formal Vulnerability Assessment (FVA) methodology, seeking to transfer the safety-oriented Formal Safety Assessment (FSA) framework into the domain of maritime supply chain vulnerability. To do so, the following two alterations are made: (1) The focus of the assessment is defined to ensure the ability of the transportation to serve as a throughput mechanism of goods, and to survive and recover from disruptive events. (2) To cope with low-frequency high-impact disruptive scenarios that were not necessarily foreseen, two parallel tracks of risk assessments need to be pursued-the cause-focused risk assessment as in the FSA, and a consequence-focused failure mode approach.

  13. Impact of “smart” technologies in teaching maritime subjects

    Science.gov (United States)

    Barsan, E.; Varsami, C.; Duse, A.; Hanzu-Pazara, R.; Jenaru, A.

    2017-08-01

    Nowadays students were born in a world of continuous evolution of technology. Technology is part of their daily life inside and outside their professional studies. One of the most important discoveries when it comes to technology is the internet which provides today the possibility for students to have access to all types of information and resources which are very useful in their studies activities. Therefore, in our paper we ask a very natural question: which is the place of technology in the university studies? Moreover: What part does technology play in teaching Maritime subjects? And: Which is the impact of technology in maritime teaching? Our intention is to go into more specific details on this subject, as in trying to exemplify our observations based on our own experience in teaching in Constanta Maritime University. Further on, we intend to discuss how the so called “smart” technologies came into occupying a very important place in the daily activities of our students forcing trainers to cope with this phenomenon in order to improve their teaching activities and even their relation (communication) with their students. We chose to develop this subject because everybody needs to be aware of the huge differences between generations of students. Previous generations used to require and enjoy studying from the traditional paper resources, while present generations do not even visit the libraries anymore. This is why university lecturers need to adapt their teaching methods, teaching tools and study materials to their students’ needs and of course to the evolution of technology.

  14. Earth Observation Derived Information and Maritime Environment Protection

    Science.gov (United States)

    Ito, Atsuyo; Peter, Nicolas

    2005-03-01

    Space-based assets and especially Earth observation (EO) satellites imagery are generating key-information for the benefit of maritime users such as transport companies; fisheries, off shore oil and gas industry. EO data are also suited for monitoring the marine environment. There is a growing use of EO data to ensure compliance with international obligations, and particularly, treaty obligations. While the use of space-based EO data have been focusing mainly in the area of land monitoring for the purpose of implementing multilateral environmental agreements (MEAs) such as the Kyoto Protocol, MEAs such as the International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 (MARPOL 73/78) have pioneered the use of EO data. The MARPOL convention is one of the only MEAs explicitly referring to remote sensing in its articles as potential support in marine oil pollution monitoring. This paper describes the benefits and limitations of the use of EO derived information to monitor MEAs dedicated to maritime protection focusing on oil pollution. The potential role of international global programs based on space systems such as the International Charter on Space and Major disasters, are also presented focusing on maritime surveillance. Finally, current EO legal framework and future issues are also examined.

  15. Training and Maritime Archaeology in a University Context

    Science.gov (United States)

    Parham, David; Palma, Paola

    2008-12-01

    This paper draws on experience gained by Bournemouth University to consider undergraduate education in maritime archaeology. At Bournemouth maritime archaeology is taught firmly in the context of a broader archaeological education. Archaeological programmes vary with the institutions within which they are taught, each programme thus having an individual character that separates it from that of other institutions and further enriches the subject through the breadth of this education. At Bournemouth the value of teaching archaeology with a high component of practical experience has been long understood. This does not mean that archaeology is taught as a purely practical subject but as one within which experience in the field is seen as a worthwhile focus. Bournemouth’s programme therefore recognises the value of field research projects as learning environments for undergraduates studying maritime archaeology. The programme is subject to a number of constraints, notably the size of the archaeological employment market, levels of pay within that market, questions of ongoing professional development after graduation, and the requirements of other employment markets into which archaeological graduates enter. This paper argues that research project-based learning, and in particular, involvement with amateur groups, provides a way to balance these constraints and supports development of both technical and transferable ‘soft’ skills.

  16. Optimized maritime emergency resource allocation under dynamic demand.

    Directory of Open Access Journals (Sweden)

    Wenfen Zhang

    Full Text Available Emergency resource is important for people evacuation and property rescue when accident occurs. The relief efforts could be promoted by a reasonable emergency resource allocation schedule in advance. As the marine environment is complicated and changeful, the place, type, severity of maritime accident is uncertain and stochastic, bringing about dynamic demand of emergency resource. Considering dynamic demand, how to make a reasonable emergency resource allocation schedule is challenging. The key problem is to determine the optimal stock of emergency resource for supplier centers to improve relief efforts. This paper studies the dynamic demand, and which is defined as a set. Then a maritime emergency resource allocation model with uncertain data is presented. Afterwards, a robust approach is developed and used to make sure that the resource allocation schedule performs well with dynamic demand. Finally, a case study shows that the proposed methodology is feasible in maritime emergency resource allocation. The findings could help emergency manager to schedule the emergency resource allocation more flexibly in terms of dynamic demand.

  17. Drying projection over western maritime continent during Southwest and Northeast monsoon seasons

    Science.gov (United States)

    Kartika Lestari, R.

    2017-04-01

    In the maritime continent, the precipitation variability is large and recently, this region experiences longer dry season and more number of severe drought events that are threatening the human life, such as, water supply for daily life and agriculture, and unhealthy air quality due to the increased number of wildfires. Global warming has been known to contribute to the rainfall anomalies around the world, and present study investigate the extent to which the drying conditions are going to be happened in 21st century over western part of the maritime continent (WMC), where the population is much larger than the eastern part, during both active Southwest (SW) and Northeast (NE) monsoon seasons. A future change in the precipitation over WMC is suggested from our analyses of the Coupled Model Intercomparison Project Phase 5 (CMIP5) models. In addition to CMIP5, we analyse the downscaled data of nine selected CMIP5 models to examine if there is modification in the drying projection when higher resolution data are used. While the north and south of equator show out of phase in the precipitation change, the region around equator shows decreased precipitation during both the SW monsoon in June-July-August-September (JJAS) and the peak of NE monsoon in February (FEB). The drying projection is robustly shown in FEB when Intertropical Convergence Zone (ITCZ) shift to the southern hemisphere, but the same robustness is not shown in JJAS when the monsoon over South China Sea is active. The detail results, including the mechanisms and the impacts of tropical climate features (such as, warming Pacific Ocean, monsoon, ITCZ) that drive the drying projection, and the possible reasons causing different degree in the robustness between two seasons, will be shown in the presentation.

  18. Emergency Management of Maritime Accidents in the Yangtze River: Problems, Practice and Prospects

    Directory of Open Access Journals (Sweden)

    Xin Ping Yan

    2017-03-01

    Full Text Available Maritime accidents have received considerable attentions due to the enormous property damage, casualties and serious environmental pollution. This paper first makes statistical analysis of the different types of maritime accidents in the period of 2012 to 2014 in the Yangtze River. Second, the problems of emergency management of maritime accidents are also proposed from the analysis of the major accident “Eastern Star”.. Afterwards, four practice cases, including decision support for maritime accidents, emergency resource allocation, emergency simulation system and effectiveness of emergency management, are introduced to present the insights gained from these practices. Last, in order to address these problems, this paper proposes that an artificial societies, Computational experiments, and Parallel execution (ACP approach should be introduced to establish an improved management system for maritime accidents in the future, and an ACP based maritime accident emergency management framework is proposed.

  19. Educating Maritime Engineers for a Globalised Industry - Bridging the Gap Between Industry and Universities

    DEFF Research Database (Denmark)

    Andersen, Ingrid Marie Vincent; Nielsen, Ulrik Dam

    2012-01-01

    . This means that universities educating maritime engineers need to reflect the changes in the curricula for their maritime engineering students. Topics and issues regarding this matter have recently been addressed in a survey made in the Danish maritime industry. The survey concludes that the demand...... for maritime engineers in the industry is considerably larger than the output from the technical universities. Moreover, it sets forth a series of recommendations to the industry as well as to the universities to facilitate meeting the demand for maritime engineers in Denmark in the future. The recommendations...... are outlined together with work commenced at the Technical University of Denmark (DTU) to update the curricula for DTU’s maritime engineering students. Thus, DTU offers an education reflecting a large share of the recommendations in the curricula....

  20. International treaties: United Nations; mutual assistance pacts; human rights; maritime law, air law, space law; environmental law; law for the prevention of war; German unification. Full-text edition. As of January 1994. 6. new rev. ed. Voelkerrechtliche Vertraege: Vereinte Nationen, Beistandspakte, Menschenrechte, See-, Luft- und Weltraumrecht, Umweltrecht, Kriegsverhuetungsrecht, deutsche Einheit. Textausgabe. Stand Januar 1994

    Energy Technology Data Exchange (ETDEWEB)

    Randelzhofer, A. (ed.)

    1994-01-01

    The book contains amongst others the following texts: Convention on Long-Range Transboundary Air Pollution (of 13.11.1979); Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution on the Reduction of Sulphur Emissions or their Transboundary Fluxes by at least 30 per cent (of 8.7.1985); Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution Concerning the Control of Emissions of Nitrogen Oxides or their Transboundary Fluxes (of 31.10.1988); Vienna Convention for the Protection of the Ozone Layer (of 22.3.1985); Montreal Protocol on Substances that Deplete the Ozone Layer (of 16.9.1987); Agreement on Early Notification in the Event of Nuclear Accidents (of 26.9.1986); Agreement on Mutual Assistance in the Event of Nuclear Accidents or Radiological Emergencies (of 26.9.1986). (HW)

  1. Polare maskuliniteter

    Directory of Open Access Journals (Sweden)

    Marit Anne Hauan

    2012-05-01

    Full Text Available In this paper my aim is to read and understand the journal of Gerrit de Veer from the last journey of William Barents to the Arctic Regions in 1596 and the journal of captain Junge on his hunting trip from Tromsø to Svalbard in 1834.It is nearly 240 years between this to voyages. The first journal is known as the earliest report from the arctic era. Gerrit de Veer adds instructive copper engravings to his text and give us insight in the crews meeting with this new land. Captain Junges journal is found together with his dead crew in a house in a fjord nearby Ny-Ålesund and has no drawings, but word. Both of these journals may be read as sources of the knowledge and understanding of the polar region. They might also unveil the ideas of how to deal with and survive under the challenges that is given. In addition one can ask if the sources can tell us more about how men describe their challenges. Can the way they expressed themselves in the journals give us an understanding of masculinity? And not least help us to create good questions of the change in the ideas of masculinities which is said to follow the change in understanding of the wilderness.

  2. Information on weather and sea conditions onboard polar cruise ships

    Directory of Open Access Journals (Sweden)

    BRÂNDUŞA CHIOTOROIU

    2016-11-01

    Full Text Available The arctic and Antarctic regions are difficult to navigate because of their severe maritime conditions. Weather forecast, forecast of the sea ice and icebergs dynamics are extremely important when planning ships routes and tourism activities including embarkation/disembarkation from boats or landing operations. New meteorological services have been created in the arctic region for broadcast purposes. The information provided by these services and received onboard ships is presented in this paper. A risk assessment should be considered for Polar Water operations such as maneuvering in ice covered waters, anchoring, shore landings etc.

  3. A Natural Ventilation Alternative to the Passivhaus Standard for a Mild Maritime Climate

    Directory of Open Access Journals (Sweden)

    Paola Sassi

    2013-01-01

    Full Text Available This study examines the need in mild maritime climates, such as the southern areas of the UK, for mechanical ventilation with heat recovery (MVHR as required by the German Passivhaus standard. It considers the comfort, air quality and energy impacts of MVHR versus natural ventilation and reviews the post-occupancy monitoring data of two flats in Cardiff designed to Passivhaus standards, one of which had been operated as a naturally ventilated building rather than with MVHR. The energy consumption of this free-running flat was significantly lower (36 kWh primary energy/m²a than the Passivhaus Planning Package modeling had predicted (93 kWh primary energy/m²a with no adverse effects on occupant comfort, air quality or excessive humidity, and advantages of lower capital cost and maintenance. The paper concludes that in climates with mild winters and cool summers the use of MVHR could be omitted without compromising comfort levels and achieving at least equivalent energy savings resulting from adopting the Passivhaus model and at a lower capital cost. This suggests the potential for a naturally ventilated, ultra-low energy model with lower capital investment requirements and lower disruption when applied to retrofit that would facilitate its mainstream adoption.

  4. Advanced Ship Detection For Spaceborne Based Maritime Awareness

    Science.gov (United States)

    Radius, Andrea; Ferreira, Joao; Carmo, Paulo; Marques, Paulo

    2013-12-01

    In the last years the increase in marine traffic generated the necessity of global monitoring for marine environment management in terms of safety, security and fisheries. The increasing number of new satellite-based Synthetic Aperture Radar (SAR) systems, and the intrinsic capability of the transmitted electromagnetic pulses to interact with the ships and to retrieve its cinematic characteristics, made this instrument particularly fit to improve global maritime awareness through the fusion with cooperative data (AIS, VMS, LRIT). The growing need of global maritime awareness gave a push to the realization of different projects in the European context, each one focused on a different particular objective. Particularly useful is the synergy between the operational and research aspects, being the goal of the last to improve the state of the art in the field of ship detection. Two European projects are the key to strive this synergy: the project MARitime Security Service (MARISS), which implements the operational capability, and the R&D Dolphin projects, which is focused on the deep exploitation of remote sensing data and on the technological development of advanced techniques for ship detection and classification purposes, and Seabilla project, which is also dedicated to improve the current ship detection capability and to fuse all the available information from different data sources for border surveillance optimization. This paper introduces the multipurpose Edisoft Vessel Detection software (EdiVDC) implemented by the EDISOFT company, which comes from the necessity to respect increasingly stringent requirements in terms of ship detection. The EdiVDC software is being operationally used in the framework of the MARISS project and it integrates advanced processing algorithms, developed in the scope of the Dolphin project with the cooperation of ISEL-IT (Instituto de Telecomunicações), and data simulators, developed in the context of the Seabilla project, improving

  5. PLM in the context of the maritime virtual education

    Science.gov (United States)

    Raicu, Alexandra; Oanta, Emil M.

    2016-12-01

    This paper presents new approaches regarding the use of Product Lifecycle Management concept to achieve knowledge integration of the academic disciplines in the maritime education context. The philosophy of the educational system is now changing faster worldwide and it is in a continuous developing process. There is a demand to develop modern educational facilities for CAD/CAE/CAM training of the future maritime engineers, which offers collaborative environments between the academic disciplines and the teachers. It is well known that the students must understand the importance of the connectivity between the academic disciplines and the computer aided methods to interface them. Thus, besides the basic knowledge and competences acquired from the CAD courses, students learn how to increase the design productivity, to create a parametric design, the original instruments of automatic design, 3D printing methods, how to interface the CAD/CAE/CAM applications. As an example, the Strength of Materials discipline briefly presents alternate computer aided methods to compute the geometrical characteristics of the cross sections using the CAD geometry, creation the free body diagrams and presentation the deflected shapes of various educational models, including the rotational effect when the forces are not applied in the shear center, using the results of the FEM applications. During the computer aided engineering academic disciplines, after the students design and analyze a virtual 3D model they can convert it into a physical object using 3D printing method. Constanta Maritime University offers a full understanding of the concept of Product Lifecycle Management, collaborative creation, management and dissemination.

  6. Interdependence between iron ore production and maritime transport

    Directory of Open Access Journals (Sweden)

    A. V. Todorut

    2016-10-01

    Full Text Available The maritime industry plays an important role in international trade, transporting a total of 10,1 billion tons of merchandise in 2015, representing over 80% of all global trade, with dry cargo estimated to account for over two thirds of the total seaborne trade. Bulk carriers supply the raw materials needed by the steel industry and container ships transport the steel products. Demand and supply for seaborne transport is influenced by trends in global economy and worldwide demand for commodities. The paper analyzes the most important economic determinants in the supply of metallurgical raw materials, highlighting the importance of the shipping sector.

  7. 2006 Land and Maritime Supply Chains Business Conference and Exhibition

    Science.gov (United States)

    2006-08-30

    Registry (CCR) •Vendors register when contract awarded •Provides EFT payment information •Identify eBusiness POC Electronic Funds Transfer (EFT...1.4B n Maritime $1.7B n Aviation $0.6B* DSCC ICP… Business Profile Sales Trend n FY02 $2.3B n FY05...Force Structure Trends unlikely to change without dramatic action 12 • Federal Budget unlikely to grow • DoD Budget expected to be under pressure for

  8. INDONESIAN SALVAGE LAW WITHIN THE FRAMEWORK OF CONTEMPORARY MARITIME LAW

    Directory of Open Access Journals (Sweden)

    Dhiana Puspitawati

    2015-12-01

    Full Text Available Located in a strategic position, that is between two great oceans and two land masses have made Indonesia a centre of international trade and shipping. In fact, 90% of international trades are carried out through the ocean. It is therefore crucial to assure that the activities in carrying goods across the ocean are incident free. However, if accident happens, assistance from professionals to preserve items of property is desirable. In such, salvage law emerged. This paper discusses comprehensively Indonesian salvage law within the framework of contemporary maritime law. While Indonesian maritime law is mostly based on its national law on the carriage of goods by the sea, in fact, the development of maritime law is highly affected by international practices which are largely based on international conventions and regulations. This research finds that while Indonesian salvage law can be found in Book II Chapter VII article 545-568k Wetboek Van Koophandel or known as Kitab Undang-undang Hukum Dagang (KUHD, which focused narrowly on the value of salved property as the primary measures of success, yet Indonesian salvage law has not been developed in accordance with current international salvage law, which adopted a broader and more balanced approached in both commercial and environmental aspects. Although it is believed that such approached is “culturally unrecognized” in Indonesia, this research argued that since Indonesian waters are part of international waters, all process by waters including salvage should confirm the relevant international practices and regulations. While Indonesia has taken out salvage law from KUHD and regulates it within Act Number 17/2008 on navigation, however, such act only provides one article for salvage stating that salvage will be regulates further by Ministry Regulation. Untill this paper was written no such government regulation produced yet by Indonesia. Since Indonesian waters is the centre of international

  9. Review of Maritime Health research gab in latin America

    DEFF Research Database (Denmark)

    Jensen, Olaf Chresten

    for research in this part of the world. Materials and Methods PubMed, Google Scholar, SciELO - Scientific Electronic Library Online, Pan American Journal of Public Health, Medicina Maritima and other relevant journals in Latin America in the Spanish and English languages were searched. Results 57 peer-reviewed......Background So far the maritime health and safety research for seafarers and fishermen mainly comes from the industrial developed countries with sparse contributions from the developing countries. The aim was to give an overview of the peer reviewed research in Latin America to point out the needs...

  10. Assessing the impact of the maritime silk road

    Directory of Open Access Journals (Sweden)

    Orestis Schinas

    2017-09-01

    Full Text Available The plans for the Maritime Silk Road affect the existing liner services. The purpose of this paper is to quantify using the terms of network theory the impact of these plans and to project the effects on the fleet, utilization, port throughput, and carbon footprint. The analysis is based on publicly available information and reasonable fleet deployment assumptions. It also considers current and alternative routing schedules from Shanghai to Europe. The impact of existing and expected emission control areas (ECAs along the port chains is also considered.

  11. Polarized electron sources

    Energy Technology Data Exchange (ETDEWEB)

    Prepost, R. [Univ. of Wisconsin, Madison, WI (United States)

    1994-12-01

    The fundamentals of polarized electron sources are described with particular application to the Stanford Linear Accelerator Center. The SLAC polarized electron source is based on the principle of polarized photoemission from Gallium Arsenide. Recent developments using epitaxially grown, strained Gallium Arsenide cathodes have made it possible to obtain electron polarization significantly in excess of the conventional 50% polarization limit. The basic principles for Gallium and Arsenide polarized photoemitters are reviewed, and the extension of the basic technique to strained cathode structures is described. Results from laboratory measurements of strained photocathodes as well as operational results from the SLAC polarized source are presented.

  12. Assessment of Performance Measures for Security of the Maritime Transportation Network, Port Security Metrics : Proposed Measurement of Deterrence Capability

    Science.gov (United States)

    2007-01-03

    This report is the thirs in a series describing the development of performance measures pertaining to the security of the maritime transportation network (port security metrics). THe development of measures to guide improvements in maritime security ...

  13. ICS security in maritime transportation : a white paper examining the security and resiliency of critical transportation infrastructure

    Science.gov (United States)

    2013-07-29

    The John A. Volpe National Transportation Systems Center was asked by the Office of Security of the Maritime Administration to examine the issue of industrial control systems (ICS) security in the Maritime Transportation System (MTS), and to develop ...

  14. Contemporary model fidelity over the Maritime Continent: Examination of the diurnal cycle, synoptic, intraseasonal and seasonal variability

    Science.gov (United States)

    Baranowski, Dariusz

    2017-04-01

    One of the key challenges in subseasonal weather forecasting is the fidelity in representing the propagation of the Madden-Julian Oscillation (MJO) across the Maritime Continent (MC). In reality both propagating and non-propagating MJO events are observed, but in numerical forecast the latter group largely dominates. The fact that models still struggle to realistically represent the MJO over MC is generally attributed to its complex terrain and associated vigorous diurnal cycle of convection, multi-scale interactions between local and propagating modes of convection and regional air-sea interactions. In this study, multi-model simulations from the GEWEX Atmospheric System Study (GASS) / Year of Tropical Convection (YOTC) MJO Project are analyzed to quantify contemporary model performance in representing the MC mean climate and its variability, including the diurnal cycle, synoptic, intraseasonal, and seasonal variability. This dataset has been shown to be useful in such multi-model evaluation studies over different regions and/or focusing on different physical processes (e.g. Jiang et al., JGR, 2015; Mani et al., Clim. Dyn, 2016) For this study, comprehensive model performances are evaluated using metrics that utilize the mean precipitation pattern and the amplitude and phase of the diurnal cycle, with a particular focus on the linkage between a model's local MC variability and its fidelity in representing propagation of the MJO and equatorial Kelvin waves across the MC. Subseasonal to seasonal variability of mean precipitation and its diurnal cycle in 20 year long climate simulations from over 20 general circulation models (GCMs) is examined to benchmark model performance. Furthermore, we utilize cross model differences to gain insight into which processes are most critical to realistically represent multi-scale interactions over the MC region. This includes distinguishing the behavior between a number of land (Sumatra, Borneo, New Guinea and Southeast Asia) and

  15. Polarimetric Radar Characteristics of Simulated and Observed Intense Convection Between Continental and Maritime Environment

    Science.gov (United States)

    Matsui, T.; Dolan, B.; Tao, W. K.; Rutledge, S. A.; Iguchi, T.; Barnum, J. I.; Lang, S. E.

    2017-12-01

    This study presents polarimetric radar characteristics of intense convective cores derived from observations as well as a polarimetric-radar simulator from cloud resolving model (CRM) simulations from Midlatitude Continental Convective Clouds Experiment (MC3E) May 23 case over Oklahoma and a Tropical Warm Pool-International Cloud Experiment (TWP-ICE) Jan 23 case over Darwin, Australia to highlight the contrast between continental and maritime convection. The POLArimetric Radar Retrieval and Instrument Simulator (POLARRIS) is a state-of-art T-matrix-Mueller-Matrix-based polarimetric radar simulator that can generate synthetic polarimetric radar signals (reflectivity, differential reflectivity, specific differential phase, co-polar correlation) as well as synthetic radar retrievals (precipitation, hydrometeor type, updraft velocity) through the consistent treatment of cloud microphysics and dynamics from CRMs. The Weather Research and Forecasting (WRF) model is configured to simulate continental and maritime severe storms over the MC3E and TWP-ICE domains with the Goddard bulk 4ICE single-moment microphysics and HUCM spectra-bin microphysics. Various statistical diagrams of polarimetric radar signals, hydrometeor types, updraft velocity, and precipitation intensity are investigated for convective and stratiform precipitation regimes and directly compared between MC3E and TWP-ICE cases. The result shows MC3E convection is characterized with very strong reflectivity (up to 60dBZ), slight negative differential reflectivity (-0.8 0 dB) and near-zero specific differential phase above the freezing levels. On the other hand, TWP-ICE convection shows strong reflectivity (up to 50dBZ), slight positive differential reflectivity (0 1.0 dB) and differential phase (0 0.8 dB/km). Hydrometeor IDentification (HID) algorithm from the observation and simulations detect hail-dominant convection core in MC3E, while graupel-dominant convection core in TWP-ICE. This land-ocean contrast

  16. A Case Study on Gender Equality and Women´s Empowerment Policies Developed by the World Maritime University for the Maritime Transport Sector

    Directory of Open Access Journals (Sweden)

    María Carolina Romero Lares

    2017-12-01

    Full Text Available The promotion of gender equality and women’s empowerment has been a goal of the United Nations Organization and its specialized agencies, within each one’s particular scope of competencies. The World Maritime University (WMU, a postgraduate maritime university founded by the International Maritime Organization (IMO, has put in place its own policies to promote the participation of women in the maritime transport sector. The main idea behind this case study analysis is to look at how WMU´s policies on gender equality and women's empowerment have evolved over time; their impact on student and employee body, curriculum, conferences and seminars; and propose areas for improvement. This research is aimed at gaining a deeper understanding of an ongoing process by exploring enrolment and hiring statistics, documents and related articles over a period of 34 years (from 1983 to 2017.

  17. Maritime security report. January 1997 [increased drug smuggling via Lesser Antilles ; business and government cooperation increasing to stem maritime cargo crimes

    Science.gov (United States)

    1997-01-01

    This report consists of three parts. The first part deals the growing cocaine traffic through the eastern Caribbean using legitimate commercial maritime freight containers, implication for nations in the area and the Caribbean Community and Common Ma...

  18. A framework for studying the importance of open innovation in the maritime industry

    DEFF Research Database (Denmark)

    Perunovic, Zoran; Vidic-Perunovic, Jelena

    The industry leaders require from maritime organizations to open up their innovation processes. The question is if the industry is ready for that? In this paper we theorize about that possibility and develop a framework for studying the importance and relevance of open innovation for the maritime...

  19. 77 FR 35862 - Safety Zone; Fleet Week Maritime Festival, Pier 66 Elliott Bay, Seattle, WA

    Science.gov (United States)

    2012-06-15

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2010-0062] Safety Zone; Fleet Week Maritime Festival, Pier 66 Elliott Bay, Seattle, WA AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of regulation. SUMMARY: The Coast Guard will enforce the Fleet Week Maritime...

  20. 75 FR 35090 - Maritime Advisory Committee for Occupational Safety and Health (MACOSH)

    Science.gov (United States)

    2010-06-21

    ... DEPARTMENT OF LABOR Occupational Safety and Health Administration Maritime Advisory Committee for Occupational Safety and Health (MACOSH) AGENCY: Occupational Safety and Health Administration (OSHA), Labor... and Health on issues relating to occupational safety and health in the maritime industries. DATES: The...

  1. 76 FR 18798 - Maritime Advisory Committee for Occupational Safety and Health (MACOSH)

    Science.gov (United States)

    2011-04-05

    ... DEPARTMENT OF LABOR Occupational Safety and Health Administration [Docket No OSHA-2011-0007] Maritime Advisory Committee for Occupational Safety and Health (MACOSH) AGENCY: Occupational Safety and... Occupational Safety and Health on matters relevant to the safety and health of employees in the maritime...

  2. 76 FR 8658 - Bulk Solid Hazardous Materials: Harmonization With the International Maritime Solid Bulk Cargoes...

    Science.gov (United States)

    2011-02-15

    ... issues Special Permits as part of its mission to ensure maritime safety and facilitate U.S. commerce. To... Solid Hazardous Materials: Harmonization With the International Maritime Solid Bulk Cargoes (IMSBC) Code... International Convention for the Safety of Life at Sea (SOLAS), 1974, as amended, that carry bulk solid cargoes...

  3. Study Regarding the Provision of Security and Safety in the International Maritime Transport

    Directory of Open Access Journals (Sweden)

    Liliana POPA

    2011-11-01

    Full Text Available The security in transport has become a crucial issue internationally, especially after the terrorist attacks of September 2001 and even more recently. Maritime, along with aviation, is considered a sensitive and of high-risk transport sector, in terms of security. Moreover, topics related to safety in maritime transport have become very important over the past decades mostly because of the numerous maritime accidents putting in danger both human lives and the environment. Taking into account the global dimension of maritime transport along with the fact that the participation of Asia in the world trade during the past decade has been substantial, the current maritime safety and security practices apply for all areas. This can only be achieved through the application of high standards and regulations setting the prerequisites for safe and secure navigation. In this direction, a significant number of Directives, Regulations and Initiatives on maritime safety and security have been introduced by international and European organizations, such as the International Maritime Organization, (I.M.O., the International Labour Organization (I.L.O. and the European Union (EU. In the framework of this analysis, the levels of compliance of European and Asian countries, regarding the international legislation, is examined while special emphasis is given on the problems and difficulties encountered during the implementation processes. Furthermore, a number of recommendations aiming to enhance the existing levels of safety and security in maritime transport in both examined area is provided.

  4. 76 FR 1460 - Maritime Advisory Committee for Occupational Safety and Health (MACOSH); Committee Reestablishment

    Science.gov (United States)

    2011-01-10

    ... DEPARTMENT OF LABOR Occupational Safety and Health Administration Maritime Advisory Committee for Occupational Safety and Health (MACOSH); Committee Reestablishment AGENCY: Occupational Safety and Health... Committee will advise OSHA on matters relevant to the safety and health of employees in the maritime...

  5. The EU Maritime Security Strategy : Promoting or Absorbing European Defence Cooperation?

    NARCIS (Netherlands)

    Landman, Lennart

    2015-01-01

    For centuries, the maritime domain has been a pillar of European livelihoods and prosperity through fishing and global trade. In modern times, we have come to depend on maritime transport to keep our economy going. Recently, however, old and new threats have challenged the security of the European

  6. 29 CFR 2530.200b-7 - Day of service for employees in the maritime industry.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Day of service for employees in the maritime industry. 2530.200b-7 Section 2530.200b-7 Labor Regulations Relating to Labor (Continued) EMPLOYEE BENEFITS SECURITY... industry. (a) General rule. A day of service in the maritime industry which must, as a minimum, be counted...

  7. Reconfiguring the Shipping News: Maritime's Hidden Histories and the Politics of Gender Display

    Science.gov (United States)

    Meecham, Pam

    2008-01-01

    This paper discusses the book "Hello Sailor! The Hidden History of Gay Life at Sea" published in 2003 by Paul Baker and Jo Stanley, re-interpreted as a landmark temporary exhibition "Hello Sailor! Gay Life on the Ocean Wave" at the Merseyside Maritime Museum, Liverpool from where it travelled in 2007 to other maritime museums. Based largely on…

  8. 47 CFR 80.475 - Scope of service of the Automated Maritime Telecommunications System (AMTS).

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Scope of service of the Automated Maritime Telecommunications System (AMTS). 80.475 Section 80.475 Telecommunication FEDERAL COMMUNICATIONS COMMISSION... Automated Systems § 80.475 Scope of service of the Automated Maritime Telecommunications System (AMTS). (a...

  9. 47 CFR 80.54 - Automated Maritime Telecommunications System (AMTS)-System Licensing.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Automated Maritime Telecommunications System (AMTS)-System Licensing. 80.54 Section 80.54 Telecommunication FEDERAL COMMUNICATIONS COMMISSION... § 80.54 Automated Maritime Telecommunications System (AMTS)—System Licensing. AMTS licensees will be...

  10. Maritime Managers of the Future – What do They Think is Good Leadership?

    Directory of Open Access Journals (Sweden)

    Bjørn Atahuallpa Bejar FjÓrli

    2015-03-01

    Full Text Available The maritime industry is multinational and multicultural. Understanding which leadership skills that are effective in such environments is necessary to be a successful leader. Work experience in multinational companies will give a different insight into which management practices are seen as desirable for future maritime leaders within a global industry. According to trait theories there are properties that can be trained and some that are linked to personality, which are not easily trainable. Since leadership skills are a combination of both trainable and not so trainable skills, it is necessary to understand what types of skills are seen as endorsed, and not endorsed by the future maritime managers. The present paper shows results from a questionnaire study using the GLOBE Leadership questionnaire where 52 master of maritime management students (i.e. maritime managers of the future rates 112 different leadership skills according to which degree these skills support outstanding leadership or not. The results show which leadership skills the maritime leaders of the future believe will support outstanding leadership. Contrasts between participant with and without work experience form multinational corporations will be shown – giving an indication of how the perception of leadership is changed through work experience in a multi-cultural context. The result will give an insight in how future management practices should be. Knowledge of the universally endorsed maritime leadership skills can be used as a guideline in the recruitment process for maritime managers.

  11. [Maritime medical service as a means to preserve health in water transport workers].

    Science.gov (United States)

    Sidorov, P I; Kazakevich, E V; Bagretsova, A A

    2007-01-01

    The authors justify new views of maritime medical service as a science of work ecology for individuals engaged into high risk occupations. The article describes unfavorable factors experienced by seamen during long voyages, presents analysis of maritime medicine state in Russia and outlines prospects for development of such medical branch.

  12. Synthetic aperture radar for maritime domain awareness: Ship detection in a South African context

    CSIR Research Space (South Africa)

    Schwegmann, CP

    2014-10-01

    Full Text Available Maritime Domain Awareness is an initiative started to help each sea-bordering country improve its understanding of its Exclusive Economic Zone. A country that improves its Maritime Domain Awareness ensures that activities such as piracy and Illegal...

  13. Detection of dim point targets in cluttered maritime backgrounds through multisensor image fusion

    NARCIS (Netherlands)

    Toet, A.

    2002-01-01

    Multispectral IR imaging techniques are frequently deployed in maritime operations, for instance to detect floating mines or to find small dinghies and swimmers during search and rescue operations. However, maritime backgrounds usually contain a large amount of clutter that severely hampers the

  14. Opening Up to the Ocean: The Changing Shape of Maritime East Asia

    Directory of Open Access Journals (Sweden)

    Adam Clulow

    2016-09-01

    Full Text Available Xing Hang, Conflict and Commerce in Maritime East Asia: The Zheng Family and the Shaping of the Modern World, c. 1620-1720. Cambridge University Press, 2016. 344 pp. $100 (cloth. Gang Zhao, The Qing Opening to the Ocean: Chinese Maritime Policies, 1684-1757. Hawai'i University Press, 2013. 280 pp. $56 (cloth.

  15. State University of New York Maritime College Faculty Student Association--Selected Financial Management Practices. Report.

    Science.gov (United States)

    New York State Office of the Comptroller, Albany. Div. of Management Audit and State Financial Services.

    The Maritime College Faculty Student Association (FSA) is a campus-based, not-for-profit corporation that was formed to operate, manage, and promote educationally related services for the benefit of the campus community at the State University of New York Maritime College, which trains students to become licensed officers in the U.S. Merchant…

  16. Century of the Seas: Unlocking Indian Maritime Strategy in the 21st Century

    Science.gov (United States)

    2017-09-01

    American maritime strategy, Cooperative Strategy for 21 st Century Seapower (CS21), but also from the 2010 Quadrennial Defense Review in which America...NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS Approved for public release. Distribution is unlimited. CENTURY OF THE...SEAS: UNLOCKING INDIAN MARITIME STRATEGY IN THE 21st CENTURY by Cody T. Smith September 2017 Thesis Advisor: Anshu Chatterjee Second

  17. The Primacy of Air Power in Contested Littorals

    Science.gov (United States)

    2012-05-04

    all U.S. forces through the use of the largest military satellite constellation in the world providing a precision capability upon which all air...strike and maritime surveillance platforms. However, this capacity is wrought with severe limitations, as the Navy starts retiring the aging P-3C Orion

  18. The New Maritime Engineering Education at the Technical University of Denmark

    DEFF Research Database (Denmark)

    Jensen, Jørgen Juncher; Andersen, Ingrid Marie Vincent; Nielsen, Ulrik Dam

    2014-01-01

    Until 2010, the maritime engineering education at the Technical University of Denmark (DTU) followed the rather classical naval architecture approach with the main focus on marine hydrodynamics and strength of ship structures. The number of students was rather modest and constant. However......, at that time the last major ship yard in Denmark was closing down and ship operation, together with ship design, became the main working area for the students after graduation. It was then decided to broaden the naval architecture education to a maritime engineering education taking marine logistics...... maritime engineering education has so far been very successful with the number of students increased by a factor of two and with very good job opportunities in the Danish maritime industry. A spin-off of this change is DTU's participation in a dual MSc degree engineering program: Nordic Master in Maritime...

  19. INFORMATION TECHNOLOGIES IN THE PROCESS OF TRAINING MARITIME SPECIALISTS

    Directory of Open Access Journals (Sweden)

    Ulyana Lyashenko

    2015-10-01

    Full Text Available The article represents main questions concerning usage of the newest information-communicative technologies of maritime educational establishments in the process of training specialists of corresponding specialities; reviews the problem of training cadets of Maritime educational institutions by means of information technologies while studying professionally focused disciplines; means of implementation information technologies into the educational process and their practical usage in future professional activity on board a ship are disclosed; the importance of online communications in teaching foreign language speaking, listening comprehension, writing and test tasks implementation to control forming of cadet’s lexical, phonetic and grammar skills are proved; presentations of authentic professionally oriented materials from the newest electronic sources on lectures on disciplines «Marine diesel installations», «Power management system», «Radio-navigational devices and systems». The author of the article grounds practicability of implementation of the newest information communicative technologies into educational process in classroom and extracurricular work, cadets are given an opportunity to get authentic professionally focused information on professional discipline, to extend knowledge on these disciplines and to realize control of formation corresponding competences.

  20. A review of fuel cell systems for maritime applications

    Science.gov (United States)

    van Biert, L.; Godjevac, M.; Visser, K.; Aravind, P. V.

    2016-09-01

    Progressing limits on pollutant emissions oblige ship owners to reduce the environmental impact of their operations. Fuel cells may provide a suitable solution, since they are fuel efficient while they emit few hazardous compounds. Various choices can be made with regard to the type of fuel cell system and logistic fuel, and it is unclear which have the best prospects for maritime application. An overview of fuel cell types and fuel processing equipment is presented, and maritime fuel cell application is reviewed with regard to efficiency, gravimetric and volumetric density, dynamic behaviour, environmental impact, safety and economics. It is shown that low temperature fuel cells using liquefied hydrogen provide a compact solution for ships with a refuelling interval up to a tens of hours, but may result in total system sizes up to five times larger than high temperature fuel cells and more energy dense fuels for vessels with longer mission requirements. The expanding infrastructure of liquefied natural gas and development state of natural gas-fuelled fuel cell systems can facilitate the introduction of gaseous fuels and fuel cells on ships. Fuel cell combined cycles, hybridisation with auxiliary electricity storage systems and redundancy improvements are identified as topics for further study.

  1. AIS Data Visualization for Maritime Spatial Planning (MSP

    Directory of Open Access Journals (Sweden)

    Michele Fiorini

    2016-12-01

    Full Text Available The constant increase in marine traffic and the simultaneous growth of the demand for exploiting marine areas (e.g., installing offshore wind power plants require an adequate planning strategy for managing high traffic volumes. Maritime Spatial Planning (MSP is the process of public development of an allocation plan for distributing, both spatially and temporally, human activities in marine areas. The adoption of e-Navigation is a possible solution for improving safety and security at sea by integrating maritime information on board and ashore. Automatic Identification System (AIS data represents a fundamental source of information, since the analysis of AIS data can highlight the presence of congested areas as well as of illegal actions, such as smuggling, pollution, and unauthorized phishing in protected areas. Indeed, those activities are often characterized by abnormal manoeuvres that can be recognized by analyzing the routes of the vessels. However, the huge dimension of the AIS data to process requires the adoption of careful strategies for the data visualization. In this paper, we present a complete pipeline for visualizing ship routes from raw AIS data, which is a fundamental pre-requisite for carrying out a significant AIS-based route analysis, and describe a real case study, where 90 million AIS records, corresponding to one month of world-wide observations, are visualized using only open-source software.

  2. The international liability funds in the maritime field

    Directory of Open Access Journals (Sweden)

    Mišo Mudrić

    2009-08-01

    Full Text Available This Paper aims to explore the current system of the international liability funds in the maritime field. Through the systematic economical, legal and political analysis of the current and envisaged international, regional and national liability funds connected to the pollution of the seas, an overview of the function, efficiency and critical considerations of the chosen liability funds will be presented. A comparison between the international system of the compensation for the oil pollution damage (and the pending hazardous and noxious substances compensation model, and that of the United States is necessary, in order to determine a difference in approaches these two systems use to tackle the burning issues of oil (and hazardous and noxious substances spills. A special consideration will be devoted to the questions of limited or unlimited liability, scope and strength of the Protection & Indemnity insurance and reinsurance market, problems of the channeling of the liability, moral hazard of the financial caps, and the general lack of the liability funds in the maritime field. Finally, an attempt will be made to consolidate the difference in opinions regarding the previously mentioned issues, and to predict the possible routes of changes awaiting the fund compensation systems.

  3. The influence of transport network vulnerability for maritime ports

    Science.gov (United States)

    Ruscă, F.; Roşca, E.; Rusca, A.; Roşca, M.; Burciu, S.

    2015-11-01

    The concepts of reliability and vulnerability are quite important in assessing the ability of transport networks from land to provide continuity in operation tacking in consideration the relation with seaports. Transport infrastructure modernizing and extension according to land use and sustainable development requirements still represents a challenging issue among policy makers, regional/local communities and scientists. The interest for the researches reliability and vulnerability for transport networks who connect maritime ports with interior city's is generate by the natural disasters, the terrorist acts, unconventional war, etc.. Transport network modelling enable the development of mathematical models used in evaluating the reliability and vulnerability. Nodes or link disruption could have an important impact over transport network users. In our paper we investigates the Romanian road network vulnerability related to Danube crossing versus maritime ports (Constanta and Mangalia) and its mitigation by improving network topology. We use Visum software to promote a methodology to assess road transport network vulnerability versus Romanian seaports and we propose some solutions to reduce probability of road transport network to fail.

  4. Persistent maritime traffic monitoring for the Canadian Arctic

    Science.gov (United States)

    Ulmke, M.; Battistello, G.; Biermann, J.; Mohrdieck, C.; Pelot, R.; Koch, W.

    2017-05-01

    This paper presents results of the Canadian-German research project PASSAGES (Protection and Advanced Surveillance System for the Arctic: Green, Efficient, Secure)1 on an advanced surveillance system for safety and security of maritime operations in Arctic areas. The motivation for a surveillance system of the Northwest Passage is the projected growth of maritime traffic along Arctic sea routes and the need for securing Canada's sovereignty by controlling its arctic waters as well as for protecting the safety of international shipping and the intactness of the arctic marine environment. To ensure border security and to detect and prevent illegal activities it is necessary to develop a system for surveillance and reconnaissance that brings together all related means, assets, organizations, processes and structures to build one homogeneous and integrated system. The harsh arctic conditions require a new surveillance concept that fuses heterogeneous sensor data, contextual information, and available pre-processed surveillance data and combines all components to efficiently extract and provide the maximum available amount of information. The fusion of all these heterogeneous data and information will provide improved and comprehensive situation awareness for risk assessment and decision support of different stakeholder groups as governmental authorities, commercial users and Northern communities.

  5. Assessment of the extirpated Maritimes walrus using morphological and ancient DNA analysis.

    Directory of Open Access Journals (Sweden)

    Brenna A McLeod

    Full Text Available Species biogeography is a result of complex events and factors associated with climate change, ecological interactions, anthropogenic impacts, physical geography, and evolution. To understand the contemporary biogeography of a species, it is necessary to understand its history. Specimens from areas of localized extinction are important, as extirpation of species from these areas may represent the loss of unique adaptations and a distinctive evolutionary trajectory. The walrus (Odobenus rosmarus has a discontinuous circumpolar distribution in the arctic and subarctic that once included the southeastern Canadian Maritimes region. However, exploitation of the Maritimes population during the 16th-18th centuries led to extirpation, and the species has not inhabited areas south of 55°N for ∼250 years. We examined genetic and morphological characteristics of specimens from the Maritimes, Atlantic (O. r. rosmarus and Pacific (O. r. divergens populations to test the hypothesis that the first group was distinctive. Analysis of Atlantic and Maritimes specimens indicated that most skull and mandibular measurements were significantly different between the Maritimes and Atlantic groups and discriminant analysis of principal components confirmed them as distinctive groups, with complete isolation of skull features. The Maritimes walrus appear to have been larger animals, with larger and more robust tusks, skulls and mandibles. The mtDNA control region haplotypes identified in Maritimes specimens were unique to the region and a greater average number of nucleotide differences were found between the regions (Atlantic and Maritimes than within either group. Levels of diversity (h and π were lower in the Maritimes, consistent with other studies of species at range margins. Our data suggest that the Maritimes walrus was a morphologically and genetically distinctive group that was on a different evolutionary path from other walrus found in the north Atlantic.

  6. Terrorisme maritime et piraterie d’aujourd’hui

    Directory of Open Access Journals (Sweden)

    Hugues Eudeline

    2009-09-01

    Full Text Available Hors temps de conflits armés, les actes de violence dans le domaine maritime sont essentiellement de deux sortes : la piraterie, pratiquée à des fins privées, et le terrorisme qui poursuit des objectifs politiques. Répondant à des logiques différentes, ces deux formes de violence constituent, indépendamment, des menaces pour les 50 000 navires marchands qui transportent plus de 90% du commerce mondial. Leur éventuelle collusion, si elle était de grande ampleur, pourrait avoir un effet multiplicateur entraînant des conséquences très importantes sur une économie mondiale fragilisée.L’environnement physique qu’elles partagent est propice aux activités illégales. La mer couvre 71% de la surface du globe et constitue un espace pour l’essentiel libre de toute emprise étatique et impossible à contrôler. Les nombreuses actions des pirates autour de l’Afrique malgré les réactions internationales le montrent à l’envi. En parallèle, la mouvance terrorisme islamiste développe une stratégie d’attaque de l’économie mondiale dont les flux maritimes constituent un des principaux piliers.Les liens des deux activités avec la criminalité les rapprochent également. Le terrorisme les entretient pour des raisons logistiques et financières, alors que la piraterie, avec les différents trafics, en est une composante maritime majeure.Cette proximité et une complémentarité des compétences nécessaires à leur pratique pourraient les rapprocher plus encore. Cette entente contre-nature permettrait d’associer les connaissances nautiques des pirates, marins expérimentés aux capacités de planification des terroristes.Apart from times of high intensity conflict, the two main forms of violence at sea are piracy, and maritime terrorism. If the former is perpetrated at private ends, the latter is politically motivated. Although addressing different ends, both activities are important threats for the 50,000 merchant vessels

  7. Geographical Income Polarization

    DEFF Research Database (Denmark)

    Azhar, Hussain; Jonassen, Anders Bruun

    inter municipal income inequality. Counter factual simulations show that rising property prices to a large part explain the rise in polarization. One side-effect of polarization is tendencies towards a parallel polarization of residence location patterns, where low skilled individuals tend to live......In this paper we estimate the degree, composition and development of geographical income polarization based on data at the individual and municipal level in Denmark from 1984 to 2002. Rising income polarization is reconfirmed when applying new polarization measures, the driving force being greater...

  8. International regulations on labour health and safety applied to fishing and maritime transport sectors. Are maritime workers under-protected.

    Science.gov (United States)

    Rodríguez, Julio Louro; Portela, Rosa Mary de la Campa; Pardo, Guadalupe Martín

    2012-01-01

    The work activity developed on board is of great importance in our nearby environment, and it has a series of peculiarities that determine the service rendering of sea workers. On the other hand, work at sea is developed on an international basis. Nowadays such work becomes a completely globalised industrial sector in relation to the elements that make up the ship's operation, including manpower. For that reason several relevant international organisations have paid attention to this industrial sector and have adopted a broad regulation on this matter. In the case of the European Union, the Community procedure emphasises enormous interest in providing specific and comprehensive training to seafarers, as well as in regulating working time on board with the aim of minimising the safety problems caused by fatigue. In the present article a schematic presentation of regulations on workers' health and occupational safety protection derived from the European Union, the International Maritime Organisation, and the International Labour Organisation has been done. Also it shows what parts of these regulations are not applicable to the work on board, and it reveals how the workers of fishing and maritime transport sectors are under-protected with regard to the guarantee of their health and occupational safety compared to workers in other sectors.

  9. Revision of IMO Model Course 3.17 Maritime English. Focus on Maritime English to Auxiliary Personnel

    Directory of Open Access Journals (Sweden)

    L. Martes

    2015-09-01

    Full Text Available Under the Manila 2010 amendments to the STCW , all crew members on board cruise vessels, mainly those assisting passengers during emergency situations and not only, “should be able to communicate safety-related issues in English or in the language spoken by the passengers and other personnel on board.” Having in view that navigational and safety communications from ship to shore and vice versa, ship to ship, and on board ships must be precise, simple and unambiguous, so as to avoid confusion and error, besides the need to standardize the language used, there is a growing demand of developing communication skills in English, especially for personnel working on cruise vessels, but also on RORO vessels, yachts and small passenger vessels. This is the reason why we have designed, developed and are already delivering the “Maritime English for Auxiliary Personnel" course in Specialized Maritime English to auxiliary personnel working on board cruise vessels to develop their ability to communicate with passengers, mainly during an emergency. The course covers the specific language used to describe the parts of ships, organisation on board ships, all essential safety-related matters and work-specific topics. It also reflects the situations in which auxiliary personnel need to communicate, with each other, with other crew members and with shore side authorities. The final goal of this course is to improve fluency in spoken English in real life situations which, of course, can be both routine and non-routine.

  10. Microbes influence the biogeochemical and optical properties of maritime Antarctic snow

    Science.gov (United States)

    Hodson, A. J.; Nowak, A.; Cook, J.; Sabacka, M.; Wharfe, E. S.; Pearce, D. A.; Convey, P.; Vieira, G.

    2017-06-01

    Snowmelt in the Antarctic Peninsula region has increased significantly in recent decades, leading to greater liquid water availability across a more expansive area. As a consequence, changes in the biological activity within wet Antarctic snow require consideration if we are to better understand terrestrial carbon cycling on Earth's coldest continent. This paper therefore examines the relationship between microbial communities and the chemical and physical environment of wet snow habitats on Livingston Island of the maritime Antarctic. In so doing, we reveal a strong reduction in bacterial diversity and autotrophic biomass within a short (debris and marine fauna, develop obvious, pigmented snow algal communities that control the absorption of visible light to a far greater extent than with the inland glacial snowpacks. Absorption by carotenoid pigments is most influential at the surface, while chlorophyll is most influential beneath it. The coastal snowpacks also indicate higher concentrations of dissolved inorganic carbon and CO2 in interstitial air, as well as a close relationship between chlorophyll and dissolved organic carbon (DOC). As a consequence, the DOC resource available in coastal snow can support a more diverse bacterial community that includes microorganisms from a range of nearby terrestrial and marine habitats. Therefore, since further expansion of the melt zone will influence glacial snowpacks more than coastal ones, care must be taken when considering the types of communities that may be expected to evolve there.

  11. Operation disturbance by wind turbines of fixed radars from civil aviation, national defense, Meteo-France, and maritime and fluvial harbors and navigation (PNM)

    International Nuclear Information System (INIS)

    2008-01-01

    Wind turbines and the movement of their blades can have penalizing effects on the processing of radars data. These disturbances can have a strong impact on the air, maritime and fluvial safety, on the protection of the territory and on the prevention of natural hazards. Reports made by the national agency of frequencies (ANFR) have established recommendations for the definition of protection areas (5 km) and coordination areas (5 to 30 km) which have to be taken into consideration prior to any project of wind turbine. (J.S.)

  12. Polarized Light Corridor Demonstrations.

    Science.gov (United States)

    Davies, G. R.

    1990-01-01

    Eleven demonstrations of light polarization are presented. Each includes a brief description of the apparatus and the effect demonstrated. Illustrated are strain patterns, reflection, scattering, the Faraday Effect, interference, double refraction, the polarizing microscope, and optical activity. (CW)

  13. Current developments lighter than air systems. [heavy lift airships

    Science.gov (United States)

    Mayer, N. J.

    1981-01-01

    Lighter than air aircraft (LTA) developments and research in the United States and other countries are reviewed. The emphasis in the U.S. is on VTOL airships capable of heavy lift, and on long endurance types for coastal maritime patrol. Design concepts include hybrids which combine heavier than air and LTA components and characteristics. Research programs are concentrated on aerodynamics, flight dynamics, and control of hybrid types.

  14. Polarized Moessbauer transitions

    International Nuclear Information System (INIS)

    Barb, D.

    1975-01-01

    Theoretical aspects of the emission, absorption and scattering of polarized gamma rays are reviewed for a general case of combined magnetic and electric hyperfine interactions; various possibilities of obtaining polarized gamma sources are described and examples are given of the applications of Moessbauer spectroscopy with polarized gamma rays in solving problems of solid state physics. (A.K.)

  15. Maritime Cultural Landscape: A New Approach to the Cascais Coastline

    Science.gov (United States)

    Freire, Jorge Vaz

    2014-06-01

    Portuguese Archaeology only recently began to address the concept of maritime cultural landscape. In this article we intend to analyze the impact that this kind of approach has upon the study of a littoral characterized by a cliffed coast and a seafloor that is morphologically complicated by the estuary influences of the Atlantic Ocean and the Tagus River. The coast of Cascais, located near Lisbon, is the space that we wish to address with this epistemological paradigm. A large spectrum of sites composed of fortresses, lighthouses, harbors, anchorages, and shipwrecks permits a longue durée examination. The relationships and networks between humans and archaeological remains, directly and indirectly linked to the nautical past, are observed diachronically with a focus on the early Modern Period.

  16. Prototyping of a Situation Awareness System in the Maritime Surveillance

    International Nuclear Information System (INIS)

    Handayani, D O D; Shah, A; Sediono, W

    2013-01-01

    This paper discusses about the design of a Situation Awareness (SA) system to support vessel crews and control room operators in improving the decision making process. The architecture of the system is ontology based. The vessel crews and control room operators may face a loss of SA. They may have limited cognitive abilities which make it difficult to make a decision in a high stress level, short time availability and continuously evolving situation with incomplete information. In this work, we describe the application of Semantic Web Rule Language to represent corresponding knowledge in the maritime surveillance domain. The result of this research will demonstrate that an ontology based system can be used to remodel the information into a meaningful and valuable form to predict the future states of SA and improve the decision making process

  17. Key Considerations in the Modeling of Tropical Maritime Microwave Attenuations

    Directory of Open Access Journals (Sweden)

    Yee Hui Lee

    2015-01-01

    Full Text Available This paper presents some key considerations for modeling of over-sea radio-wave propagations in 5 GHz band. The summarized information is based on a series of measurement campaigns which were recently carried out in the tropical maritime environments near Singapore. Multiray propagations and ducting of radio waves have been highlighted and considered in over-sea path loss modeling and prediction. It is noted that the sea-surface reflection is an important contribution in the received field, while the duct layers could enhance the radio-wave propagations. Our studies also show that the refracted ray inside evaporation duct could be a strong ray for short-range near sea-surface applications and needs to be properly evaluated.

  18. THE TIME FACTOR IN MARITIME TRANSPORT AND PORT LOGISTICS ACTIVITIES

    Directory of Open Access Journals (Sweden)

    Florin NICOLAE

    2016-06-01

    Full Text Available Execution of the carriage contract requires compliance to all the conditions in it, by all those involved in the transport. Main obligations incumbent upon the vessel, and obviously, to other transporters, who must provide transportation according to deadlines and safety. Contract compliance is certifying transport participants about their seriousness and an appropriate market quotation. Therefore, present work pragmatically sets schematics reference time associated implementation of the carriage contract. Also, are demonstrated relationships established between maritime transport “players” and sequence of activities related to the operation of the vessel in port. The authors propose a set of concepts and terms whose utility is established to solve practical problems in this area of activity.

  19. Performance limits for maritime Inverse Synthetic Aperture Radar (ISAR)

    Energy Technology Data Exchange (ETDEWEB)

    Doerry, Armin Walter [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2013-11-01

    The performance of an Inverse Synthetic Aperture Radar (ISAR) system depends on a variety of factors, many which are interdependent in some manner. In this report we specifically examine ISAR as applied to maritime targets (e.g. ships). It is often difficult to get your arms around the problem of ascertaining achievable performance limits, and yet those limits exist and are dictated by physics. This report identifies and explores those limits, and how they depend on hardware system parameters and environmental conditions. Ultimately, this leads to a characterization of parameters that offer optimum performance for the overall ISAR system. While the information herein is not new to the literature, its collection into a single report hopes to offer some value in reducing the seek time.

  20. Optimizing romanian maritime coastline using mathematical model Litpack

    Science.gov (United States)

    Anton, I. A.; Panaitescu, M.; Panaitescu, F. V.

    2017-08-01

    There are many methods and tools to study shoreline change in coastal engineering. LITPACK is a numerical model included in MIKE software developed by DHI (Danish Hydraulic Institute). With this matehematical model we can simulate coastline evolution and profile along beach. Research and methodology: the paper contents location of the study area, the current status of Midia-Mangalia shoreline, protection objectives, the changes of shoreline after having protected constructions. In this paper are presented numerical and graphycal results obtained with this model for studying the romanian maritime coastline in area MIDIA-MANGALIA: non-cohesive sediment transport, long-shore current and littoral drift, coastline evolution, crossshore profile evolution, the development of the coastline position in time.

  1. U.S. northeast and Maritime markets : a marketer's perspective

    International Nuclear Information System (INIS)

    Broadfoot, M.

    1998-01-01

    A 1998 profile of Engage Energy Canada was presented as an illustration of gas marketing opportunities in eastern Canada and the northeastern United States from the point of view of the gas marketer. Engage Energy is a joint venture company of Westcoast Energy Inc., and the Coastal Corporation. The company's annual gross revenues equal $US 4.0 billion involving an annual natural gas volume of 8 Bcf/day and an annual electricity volume of 40 million MWh. The functions of marketers and the characteristics of this particular market area were described, paying attention also to commodity volatility. The role of energy marketers in the Maritimes and the northeast USA was defined as 'partnering' between energy users and marketing firms to manage the energy users' needs through a rapidly changing energy market. The expertise that marketers bring to this task was also described. 7 figs

  2. MARITIME TRANSPORT IN THE SUSTAINABLE DEVELOPMENT OF UKRAINE

    Directory of Open Access Journals (Sweden)

    Nicholas Primachev

    2016-12-01

    Full Text Available The article deals with the theoretical and practical aspects of the development of the national maritime transport in accordance with the criteria of effective positioning of the socio-economic system of the country in the global division of labor. Features and prob-lems of formation of Ukraine in accordance with the priorities of sustainable development of the system are disclosed. Targeting normalized socio-economic parameters of the country's position in the global space requires a balanced development of the system of absolute and comparative advantage. The troublesome of the economic development of Ukraine is weak due to the integration processes of industrial segment of the country and low added value. As a result, the vast majority of foreign trade cargo flows is performed by foreign fleet. To reduce the negative current account payments is necessary to create normal fleet freight capacity of Ukraine.

  3. Maritime supply chain security: Navigating through a sea of compliance requirements

    Directory of Open Access Journals (Sweden)

    Emma Maspero

    2008-11-01

    Full Text Available As a direct result of the 9-11 New York attack all modes of freight and passengertransportation were scrutinised for vulnerabilities. Over 90% of international trade takes place via sea transport for at least some part of the supply chain and as a result there has been a drive to better secure maritime transportation. This paper outlines the background to and the rationale behind the most important of the new security measures for maritime transportation and provides an overview of the likely implications for supply chain role-players. In addition the paper endeavours to create awareness of the importance of maritime supply chain security.

  4. Liquefied natural gas, a maritime fuel: Initiatives for the energy transition now under way

    International Nuclear Information System (INIS)

    Burdeau, Julien

    2015-01-01

    Usually considered to be a simple means for easily transporting natural gas over long distances, liquefied natural gas is rapidly gaining ground as a new maritime fuel. As it seeks to reduce its emissions of pollution and greenhouse gases, the maritime transportation industry is preferring this alternative to liquid petroleum fuels because of its low cost and environmental advantages. Developing this new fuel for maritime and river shipping runs up against several difficulties that, to be solved, call for, among other things, setting up a new supply chain - in which Gaztransport and Technigaz (GTT) wants to find its place

  5. CYGNSS Surface Wind Validation and Characteristics in the Maritime Continent

    Science.gov (United States)

    Asharaf, S.; Waliser, D. E.; Zhang, C.; Wandala, A.

    2017-12-01

    Surface wind over tropical oceans plays a crucial role in many local/regional weather and climate processes and helps to shape the global climate system. However, there is a lack of consistent high quality observations for surface winds. The newly launched NASA Cyclone Global Navigation Satellite System (CYGNSS) mission provides near surface wind speed over the tropical ocean with sampling that accounts for the diurnal cycle. In the early phase of the mission, validation is a critical task, and over-ocean validation is typically challenging due to a lack of robust validation resources that a cover a variety of environmental conditions. In addition, it can also be challenging to obtain in-situ observation resources and also to extract co-located CYGNSS records for some of the more scientifically interesting regions, such as the Maritime Continent (MC). The MC is regarded as a key tropical driver for the mean global circulation as well as important large-scale circulation variability such as the Madian-Julian Oscillation (MJO). The focus of this project and analysis is to take advantage of local in-situ resources from the MC regions (e.g. volunteer shipping, marine buoys, and the Year of Maritime Continent (YMC) campaign) to quantitatively characterize and validate the CYGNSS derived winds in the MC region and in turn work to unravel the complex multi-scale interactions between the MJO and MC. This presentation will show preliminary results of a comparison between the CYGNSS and the in-situ surface wind measurements focusing on the MC region. Details about the validation methods, uncertainties, and planned work will be discussed in this presentation.

  6. Psychological consequences in victims of maritime piracy: the Italian experience.

    Science.gov (United States)

    Ziello, Antonio Rosario; Degli Angioli, Rolando; Fasanaro, Angiola Maria; Amenta, Francesco

    2013-01-01

    Maritime piracy is a worrying phenomenon. Its recurrence in the last few years iscausing several problems to the safety of maritime routes. In spite of the number of seafarers kidnappedand maintained in captivity, psychological/mental disorders developed in victims of these criminal actshave not been investigated. This study has assessed psychological consequences of kidnapping in a groupof Italian seafarers held in captivity from 7 to 10 months. Four Italian seafarers were examined at the 5th month after release. An initial, semi-structured interview was followed by 2 structured clinical evaluations for assessing the possible presence of psychopathological disorders. Instruments used were the Cognitive Behavioural Assessment (CBA 2.0) and the Clinician-Administered Post Traumatic Stress Disorder (PTSD) Scale (CAPS-DX). All victims showed high scores of state anxiety (56.00 ± 3.36) and social adjustment disorder (12.75 ± 2.21) to CBA 2.0. Moreover, 3 of them revealed traits of anxiety (58.75 ± 8.50) and emotionalinstability (8.25 ± 2.50). Two of them had somatic disorders (63.25 ± 15.94), depression (17.25 ± 4.78) and phobic problems (91.00 ± 7.02). In 3 of 4 victims examined, a PTSD diagnosis was made. Symptomsof recall resulted in higher CAPS-DX (13.00 ± 4.05) scores. Traumatic experiences such as being kept in captivity by pirates could entail relevant psychopathological disorders in victims and their families. Quality care interventions, aimed to develop paradigms for resilience training, represent a priority. An international partnerships and collaboration between institutions, clinicians and seafarer organisations can be useful to evaluate psychological conditions of these workers.

  7. APLIKASI BUSINESS INTELLIGENCE UNTUK ANALISA DAN PRAKIRAAN CUACA MARITIM

    Directory of Open Access Journals (Sweden)

    Subekti Mujiasih

    2015-01-01

    Full Text Available Salah satu teknologi yang dapat mewujudkan kecepatan dan kemudahan analisa data adalah Business Intelligence (BI. Teknologi ini dapat menampilkan data dalam bentuk grafik yang bersifat multidimensi, sehingga dapat dilakukan pemilihan informasi sesuai kebutuhan. Aplikasi BI yang dibangun tidak hanya membuat tampilan berbagai komponen cuaca dalam bentuk grafik/dashboard, tetapi juga suatu gudang data. Dalam proses pembuatan informasi prakiraan cuaca maritim diperlukan banyak komponen data, diantaranya arah dan tinggi gelombang, arah dan kecepatan angin, pasang surut dan swell. Data tersebut diintegrasikan dalam bentuk data warehouse secara multidimensi melalui dimensi waktu dan lokasi. Data warehouse yang dikembangkan untuk mendukung model BI hanya yang bersifat deparmental, yaitu berbentuk datamart. Aplikasi BI yang dikembangkan meliputi aplikasi ETL dan aplikasi Dashboard dengan memanfaatkan perangkat lunak Visual Studio 2008, SQL Server Database dan Analysis Services 2008. Aplikasi ini menyediakan kemudahan dan kecepatan dalam melakukan pencarian, pemilihan dan analisa data. Trend data yang dihasilkan dari proses tersebut menjadi pengontrol range nilai prediksi cuaca maritim.   One technology that can realize rapidity and simplicity of data analysis is Business Intelligence. This technology can present multidimensional data both in graphical and spatial form, so selecting the information as needed will easily be done. The developed BI is not only graphical product but also data warehouse. In the process of providing marine weather forecast information it requires many components of data including wave direction and height, wind direction and speed, tides and swell. These data are integrated in a multidimensional form of Data warehouse through the dimension of time and location. The developed data warehouse for supporting the model of Business Intelligence is datamart that covers only one division. The resulted BI includes ETL application and

  8. Legislative/regulatory drivers the international maritime organization

    International Nuclear Information System (INIS)

    Wallace, S.A.

    1992-01-01

    I am pleased and honored to be here representing the International Maritime Organization (IMO), which is the cosponsor of this R ampersand D Forum with the Coast Guard. This is truly an international Forum - and it needs to be. I should like to turn now to the subject of IMO and, for the benefit of many here who do not know the Organization, describe very briefly what IMO is and what it does. IMO is the specialized agency of the United Nations that deals with shipping matters. The Organization has 136 member-states and its headquarters is located in London on the bank of the Thames River. It has a permanent secretariat numbering about 300 international civil servants, headed by the Secretary-General. IMO is a technical organization, and it conducts its work through committees of the whole, with the help of standing subcommittees, working groups, and other groups or bodies formed as the need arises. We have with us today a representative of MED in the person of Commander David Pascoe, whom the U.S. Coast Guard has seconded to IMO for a two-year tour of duty. The purposes of IMO are, in short, to improve safety at sea and to prevent pollution from ships; i.e., IMO continuously strives for safer ships and cleaner oceans. IMO also promotes technical cooperation and assistance, particularly among developing countries, to help satisfy these purposes globally. The work product of IMO includes more than 30 multilateral treaties and 600 codes and sets of recommendations on maritime safety, marine environment protection, and other legal and technical issues involving worldwide shipping

  9. Basic design of beamline and polarization control

    International Nuclear Information System (INIS)

    Watanabe, M.

    2006-01-01

    The basic concept of synchrotron radiation beamlines for' vacuum ultraviolet and X-ray experiments has been introduced to beginning users and designers of beamlines. The beamline defined here is composed of a front end, pre-mirrors, and a monochromator with refocusing mirrors, which are connected by beam pipes, providing monochromatic light for the experiments. Firstly, time characteristics of the synchrotron radiation are briefly reviewed. Secondly, the basic technology is introduced as the fundamental knowledge required to both users and designers. The topics are photoabsorption by air and solids, front ends and beam pipes, mirrors, monochromators, and filters. Thirdly, the design consideration is described mainly for the designers. The topics are design principle, principle of ray tracing, optical machinery and control, and vacuum. Fourthly, polarization control is considered. The topics are polarizers, polarization diagnosis of beamline, and circularly-polarized light generation. Finally, a brief summary is given introducing some references for further knowledge of the user's and the designers. (authors)

  10. The Physics of Polarization

    Science.gov (United States)

    Landi Degl'Innocenti, Egidio

    2015-10-01

    The introductory lecture that has been delivered at this Symposium is a condensed version of an extended course held by the author at the XII Canary Island Winter School from November 13 to November 21, 2000. The full series of lectures can be found in Landi Degl'Innocenti (2002). The original reference is organized in 20 Sections that are here itemized: 1. Introduction, 2. Description of polarized radiation, 3. Polarization and optical devices: Jones calculus and Muller matrices, 4. The Fresnel equations, 5. Dichroism and anomalous dispersion, 6. Polarization in everyday life, 7. Polarization due to radiating charges, 8. The linear antenna, 9. Thomson scattering, 10. Rayleigh scattering, 11. A digression on Mie scattering, 12. Bremsstrahlung radiation, 13. Cyclotron radiation, 14. Synchrotron radiation, 15. Polarization in spectral lines, 16. Density matrix and atomic polarization, 17. Radiative transfer and statistical equilibrium equations, 18. The amplification condition in polarized radiative transfer, and 19. Coupling radiative transfer and statistical equilibrium equations.

  11. Over the Pole: A Fuel Efficiency Analysis of Employing Joint Base Elmendorf-Richardson for Polar Route Utilization

    Science.gov (United States)

    2014-06-13

    www.cia.gov/library/publications/the-world- factbook//graphics/ref_maps/ political /jpg/arctic_region.jpg Department of Defense. (2013, November). 2013 Artic ...increasing navigable Arctic shipping lanes (Skya & Ashok, 2014). Due to polar ice melt there has been an increase in maritime activity in the Artic ...center location model in future airlift basing considerations. Many times politics plays a heavy hand in where certain assets are assigned

  12. Sea Piracy in Southeast Asia: Implications for Countering Maritime Terrorism in the United States

    National Research Council Canada - National Science Library

    Geragotelis, John M

    2006-01-01

    Sea piracy has infested the seven seas throughout history. In modern times, the United States has paid little attention to piracy because the nation's isolated vastness has protected the shipping industry from maritime crime...

  13. Aspects of potential climate change impacts on ports and maritime operations around the Southern African coast

    CSIR Research Space (South Africa)

    Rossouw, Marius

    2009-02-01

    Full Text Available This paper includes a brief revue of some of the likely physical port and maritime operations related impacts due to expected climate change around the southern African coast. To mitigate these detrimental impacts, research is and should...

  14. Great Lakes maritime education program for K-12 teachers, year 2.

    Science.gov (United States)

    2012-02-01

    Michigan Technological University has led an educational/outreach effort for the Great Lake Maritime Research Institute since 2006. : Despite Michigan Techs relative isolation and long distance from most locations in the Great Lakes Basin, every s...

  15. Risk-based ranking of dominant contributors to maritime pollution events

    International Nuclear Information System (INIS)

    Wheeler, T.A.

    1993-01-01

    This report describes a conceptual approach for identifying dominant contributors to risk from maritime shipping of hazardous materials. Maritime transportation accidents are relatively common occurrences compared to more frequently analyzed contributors to public risk. Yet research on maritime safety and pollution incidents has not been guided by a systematic, risk-based approach. Maritime shipping accidents can be analyzed using event trees to group the accidents into 'bins,' or groups, of similar characteristics such as type of cargo, location of accident (e.g., harbor, inland waterway), type of accident (e.g., fire, collision, grounding), and size of release. The importance of specific types of events to each accident bin can be quantified. Then the overall importance of accident events to risk can be estimated by weighting the events' individual bin importance measures by the risk associated with each accident bin. 4 refs., 3 figs., 6 tabs

  16. A proactive approach for maritime safety policy making for the Gulf of Finland: seeking best practices

    DEFF Research Database (Denmark)

    Haapasaari, Päivi Elisabet; Helle, Inari; Lehikoinen, Annukka

    2015-01-01

    A rapid increase in maritime traffic together with challenging navigation conditions and a vulnerable ecosystem has evoked calls for improving maritime safety in the Gulf of Finland, the Baltic Sea. It is suggested that these improvements will be the result of adopting a regionally effective...... proactive approach to safety policy formulation and management. A proactive approach is grounded on a formal process of identifying, assessing and evaluating accident risks, and adjusting policies or management practices before accidents happen. Currently, maritime safety is globally regulated...... was conducted in order to examine the opportunities for developing a framework for the GoF for handling regional risks at regional level. Best practices were sought from nuclear safety management and fisheries management, and from a particular case related to maritime risk management. A regional approach...

  17. U.S. Coast Guard (USCG) Maritime Differential GPS (DGPS) Locations

    Data.gov (United States)

    Department of Homeland Security — NAVCEN operates the Coast Guard Maritime Differential GPS (DGPS) Service and the developing Nationwide DGPS Service (NDGPS), consisting of two control centers and 86...

  18. Think Globally, Act Locally -- Global Maritime Partnership Initiative and the Necessity for Cooperation and Coalition

    National Research Council Canada - National Science Library

    Reller, Jason S

    2008-01-01

    ... to "police the global commons and suppress common threats." The Global Maritime Partnership Initiative, or GMPI, is intended to play a major role in this effort as one embodiment of the cooperation envisioned...

  19. The Implications of Self-Reporting Systems for Maritime Domain Awareness

    National Research Council Canada - National Science Library

    Hammond, Tim; McIntyre, Mark; Chapman, David M; Lapinski, Anna-Liesa S

    2006-01-01

    Self-reporting systems based on GPS-quality navigation information that is sent using widely-accepted standards and protocols, offer the potential to greatly improve important components of Maritime Domain Awareness (MDA...

  20. New and interesting small-celled naviculoid diatoms (Bacillariophyta) from the Maritime Antarctic Region

    Czech Academy of Sciences Publication Activity Database

    Van de Vijver, B.; Kopalová, Kateřina; Zidarova, R.; Cox, E. J.

    2013-01-01

    Roč. 97, 1-2 (2013), s. 189-208 ISSN 0029-5035 Institutional support: RVO:67985939 Keywords : Bacillariophyta * Diatoms * Maritime Antarctic Region Subject RIV: EF - Botanics Impact factor: 0.989, year: 2013

  1. Modern Advances to the Modular Fly-Away Kit (MFLAK) to Support Maritime Interdiction Operations

    National Research Council Canada - National Science Library

    Cross, Eric C

    2007-01-01

    This thesis will test the performance of an end-to-end network solution designed to augment Maritime Interdiction Operations that support boarding parties and their near real time communications with supporting agencies...

  2. The Ghana-La Côte D'Ivoire maritime boundary dispute

    African Journals Online (AJOL)

    2008-11-13

    Ivoire raised the issue of the maritime boundary with the UN in 2010. The international boundaries of ..... problems of Côte d'Ivoire”. The five extreme eastern Ivorian concession blocks appear to ignore the fact that the eastern.

  3. Ethnobotanical study of plants used to treat asthma in the maritime ...

    African Journals Online (AJOL)

    Ethnobotanical study of plants used to treat asthma in the maritime region in Togo. Holaly E. Gbekley, Gnatoulma Katawa, Simplice D. Karou, Kokou Anani, Tchacondo Tchadjobo, Yaovi Ameyapoh, Komlan Batawila, Jacques Simpore ...

  4. Maritime archaeology of Kalinga and the contact with southeast Asian countries

    Digital Repository Service at National Institute of Oceanography (India)

    Tripati, S.

    During the last five thousand years in the maritime history of India, Kaling played an important role in diffusing the Indian culture in Southeast Asian countries. Archaeological exploration and excavations, epigraphical evidences and literary...

  5. Stone anchors from Bet Dwarka Island, Gujarat, Coast, India: Significance to historical period maritime activities

    Digital Repository Service at National Institute of Oceanography (India)

    Sundaresh; Gaur, A.S.; Tripati, S.; Gudigar, P.; Bandodkar, S.N.

    Bet Dwarka Island is situated on the extreme west of Indian territory in Jamnagar district of Gujarat. Underwater, the most preserved remains of ancient maritime activity could be the stone anchors of different types, as every boat requires...

  6. Evaluation of Inland Maritime Use of LNG in UTC Region 3

    Science.gov (United States)

    2015-07-31

    This work assesses the characteristics of the market for natural gas and alternative vehicles within Region 3 and explores applications to inland maritime within the region. This work includes a summary of existing research outlining the market condi...

  7. Innovative bio-mediated particulate materials for sustainable maritime transportation infrastructure.

    Science.gov (United States)

    2017-08-15

    The mechanical properties of sandy soils in the coastal area and beach sands often do not satisfy construction expectation for maritime transportation infrastructure. The salty, loose sand makes it difficult for quick construction of port, building a...

  8. Determination of High-Speed Multiple Threat Using Kalman Filter Analysis of Maritime Movement

    Science.gov (United States)

    2015-06-01

    HIGH-SPEED MULTIPLE THREAT USING KALMAN FILTER ANALYSIS OF MARITIME MOVEMENT by Joseph L. Carnes June 2015 Thesis Advisor: David A. Garren...USING KALMAN FILTER ANALYSIS OF MARITIME MOVEMENT 5. FUNDING NUMBERS 6. AUTHOR(S) Joseph L. Carnes 7. PERFORMING ORGANIZATION NAME(S) AND...feeding data into the Kalman filtering algorithm, which is used in the tracking of moving targets based on simulated radar position measurements

  9. A New Formulation for the Combined Maritime Fleet Deployment and Inventory Management Problem

    OpenAIRE

    Dong, Bo; Bektas, Tolga; Chandra, Saurabh; Christiansen, Marielle; Fagerholt, Kjetil

    2017-01-01

    This paper addresses the fleet deployment problem and in particular the treatment of inventory in the maritime case. A new model based on time-continuous formulation for the combined maritime fleet deployment and inventory management problem in Roll-on Roll-off shipping is presented. Tests based on realistic data from the Ro-Ro business show that the model yields good solutions to the combined problem within reasonable time.

  10. Uncertain Waters: Thinking About China’s Emergence as a Maritime Power

    Science.gov (United States)

    2011-09-01

    25 For an excellent overview of naval developments under Mao Zedong and Deng Xiaoping, see Cole, Great Wall at Sea, 2nd ed., pp. 7-18. 26 For an...56 See for example, Tang Fuquan and Wu Yi, “A Discussion of China’s Maritime Defense Strategy...Beijing: NDU Press, 2006), p. 242. See also: Tang Fuquan and Wu Yi, “A Discussion of China’s Maritime Defense Strategy,” Zhongguo Junshi Kexue, no. 5

  11. Maritime supply chain security: Navigating through a sea of compliance requirements

    OpenAIRE

    Emma Maspero; Esbeth van Dyk; Hans Ittmann

    2008-01-01

    As a direct result of the 9-11 New York attack all modes of freight and passengertransportation were scrutinised for vulnerabilities. Over 90% of international trade takes place via sea transport for at least some part of the supply chain and as a result there has been a drive to better secure maritime transportation. This paper outlines the background to and the rationale behind the most important of the new security measures for maritime transportation and provides an overview of the likely...

  12. Analysis of Material Handling Equipment for Maritime Repositioning Ships (MPS) Instream Offload

    OpenAIRE

    Sumner, John D.; Kang, Keebom

    1992-01-01

    Proceedings of the 1992 Winter Simulation Conference, ed. J. J. Swain, D. Goldsman, R. C. Crain and J.R. Wilson The Maritime Prepositioning Force (MPF) program enables the United States Marine Corps to globally project rapid and sustainable combat power. The instream method of offloading equipment and supplies from the Maritime Prepositioning Ships (MPS) provides the flexibility needed to respond to a broader range of contingencies dictated by the increasingly dynamic ...

  13. Analysis of material handling equipment for Maritime Prepositioning Ships (MPS) instream offload

    OpenAIRE

    Sumner, John D.; Kang, Keebom

    1992-01-01

    The Maritime Prepositioning Force (MPF) program enables the United States Marine Corps to globally project rapid and sustainable combat power. The instream method of offloading equipment and supplies from the Maritime Prepositioning Ships (MPS) provides the flexibility needed to respond to a broader range of contingencies dictated by the increasingly dynamic geostrategic environment. In this paper, we develop a simulation model of an MPS instream offloading operation to provide Marine Corps c...

  14. Improvement of Professional Training of Maritime Fleet Specialists: Experience of Interactive Technologies Introduction in the Danube Institute of National University «Odessa Maritime Academy»

    Directory of Open Access Journals (Sweden)

    Olga Demchenko

    2016-08-01

    Full Text Available The article focuses on the coverage of the most effective methods and technologies on improving communicative skills during the professional training of maritime fleet specialists. A complex study of skills formation process for communication in a foreign language in the Danube Institute of National University «Odessa Maritime Academy» has identified its the most problematic areas. In the result of using interactive technologies («brainstorming», project techniques, etc. was established positive dynamics in formation of skills of professional communication.

  15. The Malaysian Intermodal Terminal System: The Implication on the Malaysian Maritime Cluster

    Directory of Open Access Journals (Sweden)

    Mohamad Rosni Othman

    2016-06-01

    Full Text Available The maritime sector in Malaysia is best known globally due to the Straits of Malacca and being a nation surrounded by sea. Malaysia also has a substantial maritime industry consisting of numerous shipyards, ports and terminal faculties, ship services and a plethora of other companies and institutions with maritime oriented activities and become essential components of the Malaysia's maritime clusters. Issues such as underutilised intermodal terminals, uneven proportions in the freight transport infrastructure and road and seaport congestions prevent Malaysian seaports from achieving their full potential in serving their respective hinterlands. The key factors to improve Malaysian dry port or intermodal terminals are transport network; container planning; competition; location and, externalities. The paper does not only present the critical challenges faced by Malaysian intermodal terminals especially dry ports and the implications for seaport competency but it also provides strategies to utilise the Malaysian freight multimodal system to amplify seaports
tm performance in serving their hinterlands. As such, this may warrant policy makers to devise a comprehensive national master plan for the maritime sector in order for Malaysia to further develop her maritime industry and economies.

  16. Suomi National Polar-Orbiting Partnership Visible Infrared Imaging Radiometer Suite Polarization Sensitivity Analysis

    Science.gov (United States)

    Sun, Junqiang; Xiong, Xiaoxiong; Waluschka, Eugene; Wang, Menghua

    2016-01-01

    The Visible Infrared Imaging Radiometer Suite (VIIRS) is one of five instruments onboard the Suomi National Polar-Orbiting Partnership (SNPP) satellite that launched from Vandenberg Air Force Base, California, on October 28, 2011. It is a whiskbroom radiometer that provides +/-56.28deg scans of the Earth view. It has 22 bands, among which 14 are reflective solar bands (RSBs). The RSBs cover a wavelength range from 410 to 2250 nm. The RSBs of a remote sensor are usually sensitive to the polarization of incident light. For VIIRS, it is specified that the polarization factor should be smaller than 3% for 410 and 862 nm bands and 2.5% for other RSBs for the scan angle within +/-45deg. Several polarization sensitivity tests were performed prelaunch for SNPP VIIRS. The first few tests either had large uncertainty or were less reliable, while the last one was believed to provide the more accurate information about the polarization property of the instrument. In this paper, the measured data in the last polarization sensitivity test are analyzed, and the polarization factors and phase angles are derived from the measurements for all the RSBs. The derived polarization factors and phase angles are band, detector, and scan angle dependent. For near-infrared bands, they also depend on the half-angle mirror side. Nevertheless, the derived polarization factors are all within the specification, although the strong detector dependence of the polarization parameters was not expected. Compared to the Moderate Resolution Imaging Spectroradiometer on both Aqua and Terra satellites, the polarization effect on VIIRS RSB is much smaller.

  17. [Review] Polarization and Polarimetry

    Science.gov (United States)

    Trippe, Sascha

    2014-02-01

    Polarization is a basic property of light and is fundamentally linked to the internal geometry of a source of radiation. Polarimetry complements photometric, spectroscopic, and imaging analyses of sources of radiation and has made possible multiple astrophysical discoveries. In this article I review (i) the physical basics of polarization: electromagnetic waves, photons, and parameterizations; (ii) astrophysical sources of polarization: scattering, synchrotron radiation, active media, and the Zeeman, Goldreich-Kylafis, and Hanle effects, as well as interactions between polarization and matter (like birefringence, Faraday rotation, or the Chandrasekhar-Fermi effect); (iii) observational methodology: on-sky geometry, influence of atmosphere and instrumental polarization, polarization statistics, and observational techniques for radio, optical, and X/γ wavelengths; and (iv) science cases for astronomical polarimetry: solar and stellar physics, planetary system bodies, interstellar matter, astrobiology, astronomical masers, pulsars, galactic magnetic fields, gamma-ray bursts, active galactic nuclei, and cosmic microwave background radiation.

  18. Operation disturbance by wind turbines of fixed radars from civil aviation, national defense, Meteo-France, and maritime and fluvial harbors and navigation (PNM); Perturbations par les aerogenerateurs du fonctionnement des radars fixes de l'Aviation civile, de la Defense nationale, de Meteo-France et des ports et navigation maritime et fluviale (PNM)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    Wind turbines and the movement of their blades can have penalizing effects on the processing of radars data. These disturbances can have a strong impact on the air, maritime and fluvial safety, on the protection of the territory and on the prevention of natural hazards. Reports made by the national agency of frequencies (ANFR) have established recommendations for the definition of protection areas (5 km) and coordination areas (5 to 30 km) which have to be taken into consideration prior to any project of wind turbine. (J.S.)

  19. Towards Polarization Diversity on the SOI Platform With Simple Fabrication Process

    DEFF Research Database (Denmark)

    Ding, Yunhong; Liu, Liu; Peucheret, Christophe

    2011-01-01

    We present a polarization diversity circuit built on the silicon-on-insulator (SOI) platform, which can be fabricated by a simple process. The polarization diversity is based on two identical air-clad asymmetrical directional couplers, which simultaneously play the roles of polarization splitter...

  20. Polarization feedback laser stabilization

    Science.gov (United States)

    Esherick, P.; Owyoung, A.

    1987-09-28

    A system for locking two Nd:YAG laser oscillators includes an optical path for feeding the output of one laser into the other with different polarizations. Elliptical polarization is incorporated into the optical path so that the change in polarization that occurs when the frequencies coincide may be detected to provide a feedback signal to control one laser relative to the other. 4 figs.

  1. Polarization in Sagittarius A*

    OpenAIRE

    Bower, Geoffrey C.

    2000-01-01

    We summarize the current state of polarization observations of Sagittarius A*, the compact radio source and supermassive black hole candidate in the Galactic Center. These observations are providing new tools for understanding accretion disks, jets and their environments. Linear polarization observations have shown that Sgr A* is unpolarized at frequencies as high as 86 GHz. However, recent single-dish observations indicate that Sgr A* may have strong linear polarization at frequencies higher...

  2. A variable partially polarizing beam splitter

    Science.gov (United States)

    Flórez, Jefferson; Carlson, Nathan J.; Nacke, Codey H.; Giner, Lambert; Lundeen, Jeff S.

    2018-02-01

    We present designs for variably polarizing beam splitters. These are beam splitters allowing the complete and independent control of the horizontal and vertical polarization splitting ratios. They have quantum optics and quantum information applications, such as quantum logic gates for quantum computing and non-local measurements for quantum state estimation. At the heart of each design is an interferometer. We experimentally demonstrate one particular implementation, a displaced Sagnac interferometer configuration, that provides an inherent instability to air currents and vibrations. Furthermore, this design does not require any custom-made optics but only common components which can be easily found in an optics laboratory.

  3. Airborne Laser Polarization Sensor

    Science.gov (United States)

    Kalshoven, James, Jr.; Dabney, Philip

    1991-01-01

    Instrument measures polarization characteristics of Earth at three wavelengths. Airborne Laser Polarization Sensor (ALPS) measures optical polarization characteristics of land surface. Designed to be flown at altitudes of approximately 300 m to minimize any polarizing or depolarizing effects of intervening atmosphere and to look along nadir to minimize any effects depending on look angle. Data from measurements used in conjunction with data from ground surveys and aircraft-mounted video recorders to refine mathematical models used in interpretation of higher-altitude polarimetric measurements of reflected sunlight.

  4. Polarization at SLC

    International Nuclear Information System (INIS)

    Swartz, M.L.

    1988-07-01

    The SLAC Linear Collider has been designed to readily accommodate polarized electron beams. Considerable effort has been made to implement a polarized source, a spin rotation system, and a system to monitor the beam polarization. Nearly all major components have been fabricated. At the current time, several source and polarimeter components have been installed. The installation and commissioning of the entire system will take place during available machine shutdown periods as the commissioning of SLC progresses. It is expected that a beam polarization of 45% will be achieved with no loss in luminosity. 13 refs., 15 figs

  5. Mending the imaginary wall between Indonesia and Malaysia The case of maritime delimitation in the waters off Tanjung Berakit

    Directory of Open Access Journals (Sweden)

    I Made Andi Arsana

    2011-04-01

    Full Text Available Due to its geographical location, Indonesia shares border areas with at least ten neighbouring countries with which maritime boundaries must be settled. As of March 2011, Indonesia is yet to finalize its maritime boundaries with various States including Malaysia with which four maritime boundaries need to be settled: the Malacca Strait, the South China Sea, the Sulawesi Sea, and the Singapore Strait (off Tanjung Berakit. It is evident that pending maritime boundaries can spark problems between Indonesia and Malaysia. The dispute over the Ambalat Block in 2005 and 2009 and an incident in the waters off Tanjung Berakit on 13 August 2010 are two significant examples. This paper discusses the incident in the waters off Tanjung Berakit, but will be preceded by a description of the principles of coastal States’ maritime entitlement pursuant to international law of the sea. Following the discussion, this paper provides suggestions for settling maritime boundaries in the area from technical/geospatial and legal perspectives.

  6. Arthur Morrison, Criminality, and Late-Victorian Maritime Subculture

    Directory of Open Access Journals (Sweden)

    Diana Maltz

    2011-09-01

    Full Text Available In 1897, the literary critic H. D. Traill accused Arthur Morrison’s novel, 'A Child of the Jago', of exaggerating the viciousness of East London’s poor, claiming that Morrison had distilled various criminal behaviors into one totalizing, nightmarish zone of barbarity. This essay looks to Morrison’s later novel, 'The Hole in the Wall' (1902, whose concentration of crime is more ambiguous. Morrison tells the reader that Blue Gate Fields, and the pub within it, Paddy’s Goose, are especial locales of danger, but in fact, criminality extends beyond them to wider Wapping, including the pub and home of Captain Nat Kemp and his grandson, the narrator Stephen Kemp. Through his portrayal of Wapping, Morrison conveys his childhood familiarity with the specific maritime culture of the docks and their associated industries. In this regard, we can classify Morrison not merely as an East End novelist, but as a docklands writer. He recognized the unusual topography of Wapping with its sailors’ pubs, lodging houses, and curio shops – and also the hazards inherent there for the sailor on leave: the risk of losing one’s freedom and wages to predatory crimps and ‘land sharks’. Given his commitment to representing the district with all of its idiosyncrasies, Morrison reminds us of the limits of generalizing the ‘East End’ as a homogenous region.

  7. Metagenomic analysis of a Southern Maritime Antarctic soil

    Directory of Open Access Journals (Sweden)

    David Anthony Pearce

    2012-12-01

    Full Text Available Our current understanding of Antarctic soils is derived from direct culture on selective media, biodiversity studies based on clone library construction and analysis, quantitative PCR amplification of specific gene sequences and the application of generic microarrays for microbial community analysis. Here, we investigated the biodiversity and functional potential of a soil community at Mars Oasis on Alexander Island in the southern Maritime Antarctic, by applying 454 pyrosequencing technology to a metagenomic library constructed from soil genomic DNA. The results suggest that the commonly cited range of phylotypes used in clone library construction and analysis of 78-730 OTUs (de-replicated to 30-140 provides low coverage of the major groups present (~5%. The vast majority of functional genes (>77% were for structure, carbohydrate metabolism and DNA/RNA processing and modification. This study suggests that prokaryotic diversity in Antarctic terrestrial environments appears to be limited at the generic level, with Proteobacteria, Actinobacteria being common. Cyanobacteria were surprisingly under-represented at 2.6% of sequences, although ~1% of the genes identified were involved in CO2 fixation. At the sequence level there appeared to be much greater heterogeneity, and this might be due to high divergence within the relatively restricted lineages which have successfully colonized Antarctic terrestrial environments.

  8. Target Trailing With Safe Navigation for Maritime Autonomous Surface Vehicles

    Science.gov (United States)

    Wolf, Michael; Kuwata, Yoshiaki; Zarzhitsky, Dimitri V.

    2013-01-01

    This software implements a motion-planning module for a maritime autonomous surface vehicle (ASV). The module trails a given target while also avoiding static and dynamic surface hazards. When surface hazards are other moving boats, the motion planner must apply International Regulations for Avoiding Collisions at Sea (COLREGS). A key subset of these rules has been implemented in the software. In case contact with the target is lost, the software can receive and follow a "reacquisition route," provided by a complementary system, until the target is reacquired. The programmatic intention is that the trailed target is a submarine, although any mobile naval platform could serve as the target. The algorithmic approach to combining motion with a (possibly moving) goal location, while avoiding local hazards, may be applicable to robotic rovers, automated landing systems, and autonomous airships. The software operates in JPL s CARACaS (Control Architecture for Robotic Agent Command and Sensing) software architecture and relies on other modules for environmental perception data and information on the predicted detectability of the target, as well as the low-level interface to the boat controls.

  9. Antivibration pipeline-filtering algorithm for maritime small target detection

    Science.gov (United States)

    Wang, Bin; Xu, Wenhai; Zhao, Ming; Wu, Houde

    2014-11-01

    When searching for small targets at sea based on an infrared imaging system, irregular and random vibration of the airborne imaging platform causes intense interference for the pipeline-filtering, which is an algorithm that performs well in detecting small targets but is particularly sensitive to interframe vibrations of sequence images. This paper puts forward a pipeline-filtering algorithm that has a good performance on self-adaptive antivibration. In the block matching method that combines the normalized cross-correlations coefficient with the normalized mutual information, the interframe vibration of sequence images is acquired in real time and used to correct coordinates of the single-frame detection results, and then the corrected detection results are used to complete the pipeline-filtering. In addition, under severe sea conditions, small targets at sea may disappear transiently, leading to missing detection. This algorithm is also able to resolve this problem. Experimental results show that the algorithm can overcome the problem of interframe vibration of sequence images, thus realizing accurate detection of small maritime targets.

  10. Oil spill risk assessment in maritime transportation networks

    International Nuclear Information System (INIS)

    Yudhbir, L.; Iakovou, E.

    2005-01-01

    Commercial shippers and regulatory agencies face the challenge of evaluating the merits of various alternative policies for the transportation of crude oil and petroleum products. This paper presented a new risk estimation and assignment methodology that assesses the risk costs for the bodies of water where shipping lanes exist. The methodology is based on historical spills and uses causal data to estimate risk cost between 2 points of reference for numerous products transported by a variety of vessels. In response to public concerns regarding the environmental impacts of accidental spills from tanker ships, laws have been imposed on companies for all costs relating to environmental damage. This measure has prompted the oil industry to take greater responsibility, but a better understanding of tanker re-routing on environmental sensitive areas is needed in order to implement detailed emergency response plans and greater safety precautions. This methodology addressed the need for an efficient maritime transportation system that provides routing for various vessels carrying different petroleum products. The risk estimation methodology successfully modeled a multi-objective, multi-commodity routing problem. 23 refs., 3 figs

  11. Maritime vessel obsolescence, life cycle cost and design service life

    Science.gov (United States)

    Dinu, O.; Ilie, A. M.

    2015-11-01

    Maritime vessels have long service life and great costs of building, manning, operating, maintaining and repairing throughout their life. Major actions are needed to repair, renovate, sometime built or even replace those scrapped when technology or demand changes determine obsolescence. It is regarded as a concern throughout vessel's entire life cycle and reflects changes in expectation regarding performances in functioning, safety and environmental effects. While service live may differ from physical lives, expectations about physical lives is the main factors that determines design service life. Performance and failure are illustrated conceptually and represented in a simplified form considering the evolution of vessels parameters during its service life. In the proposed methodology an accumulated vessel lifecycle cost is analyzed and obsolescence is characterized from ship's design, performances, maintenance and management parameters point of view. Romanian ports feeding Black Sea are investigated in order to provide comprehensive information on: number and types of vessels, transport capacity and life cycle length. Recommendations are to be made in order to insure a best practice in lifecycle management in order to reduce costs.

  12. APPLICATION OF GIS AND MATHEMATICAL MODELING IN MARITIME CRISIS SITUATIONS

    Directory of Open Access Journals (Sweden)

    Nenad Mladineo

    2010-12-01

    Full Text Available This paper aims to propose a decision support system for maritime crisis situation, due to fact that Croatia has decided to implement Directive 2002/59/EC to define places of refuge for ships in need of assistance off their coasts, or to develop techniques for providing assistance to such ships. In order to fulfill this Directive it is necessary to build an effective Decision Support System (DSS based on GIS and mathematical modeling. The basic module of the proposed system is GIS, for all levels of DSS, that comprise information subsystems about spatial and other data and serves the other modules with data and information. Starting points for analysis are shipping corridors, and 380 potential locations for places of refuge designated in the official navigational pilot book. Multicriteria analysis, with GIS-generated input data, has been used to establish "worthiness" of a place of refuge for each ship category, taking into account kinds of accident. Proposed mathematical models facilitate optimal usage of "available intervention resources".

  13. Implementation of Multiple Access Techniques Applicable for Maritime Satellite Communications

    Directory of Open Access Journals (Sweden)

    Stojce Dimov Ilcev

    2013-12-01

    Full Text Available In this paper are introduced fundamentals, characteristics, advantages and disadvantages of Multiple Access (MA employed as transmission techniques in the Maritime Mobile Satellite Communications (MMSC between ships and Coast Earth Station (CES via Geostationary Earth Orbit (GEO or Not-GEO satellite constellations. In fixed satellite communication, as a rule, especially in MMSC many users are active at the same time. The problem of simultaneous communications between many single or multipoint mobile satellite users can be solved by using MA technique, such as Frequency Division Multiple Access (FDMA, Time Division Multiple Access (TDMA, Code Division Multiple Access (CDMA, Space Division Multiple Access (SDMA and Random (Packet Division Multiple Access (RDMA. Since the resources of the systems such as the transmitting power and the bandwidth are limited, it is advisable to use the channels with complete charge and to create a different MA to the channel. This generates a problem of summation and separation of signals in the transmission and reception parts, respectively. Deciding this problem consists in the development of orthogonal channels of transmission in order to divide signals from various users unambiguously on the reception part.

  14. Environmental effects of maritime traffic on the Istanbul Strait.

    Science.gov (United States)

    Birpinar, Mehmet E; Talu, Gonca F; Gönençgil, Barbaros

    2009-05-01

    The Istanbul Strait, which separates the European and the Asian parts of Istanbul, is one of the narrowest straits in the world that is used for international shipping. The Strait has very special ecological conditions in terms of marine environment (atmospheric/oceanographic conditions, plant and animal diversity) and terrestrial environment. It also has roles as biological corridor and biological barrier between the Mediterranean Sea and the Black Sea and form an acclimatization zone for migrating species. Due to being the only maritime access for the neighboring Black Sea states and the Central Asian Turki Republics, the Istanbul Strait has been exposed to dense marine traffic for centuries and substantial increase has occurred in size and tonnage of the ships passing through the Strait with hazardous cargo varieties and amounts they carry. Increase in the number of vessels that navigates on the Strait and being on the transportation way of hazardous and dangerous materials pose serious environmental and safety hazards for the Istanbul Strait, Marmara Sea and the surrounding residential areas. Geographic and oceanographic features of the Istanbul Strait makes the navigation on the Strait rather difficult and consequently the Strait has faced many casualties that caused severe environmental problems due to thousands tons of oil spill occurring in recent decades.

  15. Review of Maritime Accidents Involving Chemicals – Special Focus on the Baltic Sea

    Directory of Open Access Journals (Sweden)

    J.M. Häkkinen

    2014-06-01

    Full Text Available Transport and handling of hazardous chemicals and chemical products around the world’s waters and ports have considerably increased over the last 20 years. Thus, the risk of major pollution accidents has also increased. Past incidents/accidents are, when reported in detail, first hand sources of information on what may happen again. This paper provides an overview of the past tanker accidents in the Baltic Sea and chemical related accidents in seas worldwide. The aim is to find out what can be learned from past accidents, especially from the environmental point of view. The study is carried out as a literature review and as a statistical review. The study revealed that the risk of a chemical accident is highest in seas where the highest tonnes of chemicals are transported, the density of maritime traffic is highest and, of course, in the ship-shore interface where unloading/loading takes place. Incidents involving chemical spills are statistically much less likely to occur than oil spills. However, chemical cargoes can be more dangerous to humans and property because chemicals can be more combustible, poisonous, irritating and reactive. The most important difference between a chemical and an oil spill may be related to response actions. In case of a chemical accident, the air quality or the risk of explosion should be more carefully evaluated before any response actions are taken. In case of chemical spills, the response is more limited in comparison to oil. Actually, very little is known about the actual marine pollution effect of most of highly transported substances. From the environmental point of view, the previous studies have highlighted accidents in which pesticides were released to water, but also substances considered as non-pollutants (vegetable oils seem to have a negative effect on biota in the water environment.

  16. RHIC Polarized proton operation

    International Nuclear Information System (INIS)

    Huang, H.; Ahrens, L.; Alekseev, I.G.; Aschenauer, E.; Atoian, G.; Bai, M.; Bazilevsky, A.; Blaskiewicz, M.; Brennan, J.M.; Brown, K.A.; Bruno, D.; Connolly, R.; Dion, A.; D'Ottavio, T.; Drees, K.A.; Fischer, W.; Gardner, C.; Glenn, J.W.; Gu, X.; Harvey, M.; Hayes, T.; Hoff, L.; Hulsart, R.L.; Laster, J.; Liu, C.; Luo, Y.; MacKay, W.W.; Makdisi, Y.; Marr, G.J.; Marusic, A.; Meot, F.; Mernick, K.; Michnoff, R.; Minty, M.; Montag, C.; Morris, J.; Nemesure, S.; Poblaguev, A.; Ptitsyn, V.; Ranjibar, V.; Robert-Demolaize, G.; Roser, T.; Schmidke, B.; Schoefer, V.; Severino, F.; Smirnov, D.; Smith, K.; Steski, D.; Svirida, D.; Tepikian, S.; Trbojevic, D.; Tsoupas, N.; Tuozzolo, J.E.; Wang, G.; Wilinski, M.; Yip, K.; Zaltsman, A.; Zelenski, A.; Zeno, K.; Zhang, S.Y.

    2011-01-01

    The Relativistic Heavy Ion Collider (RHIC) operation as the polarized proton collider presents unique challenges since both luminosity(L) and spin polarization(P) are important. With longitudinally polarized beams at the experiments, the figure of merit is LP 4 . A lot of upgrades and modifications have been made since last polarized proton operation. A 9 MHz rf system is installed to improve longitudinal match at injection and to increase luminosity. The beam dump was upgraded to increase bunch intensity. A vertical survey of RHIC was performed before the run to get better magnet alignment. The orbit control is also improved this year. Additional efforts are put in to improve source polarization and AGS polarization transfer efficiency. To preserve polarization on the ramp, a new working point is chosen such that the vertical tune is near a third order resonance. The overview of the changes and the operation results are presented in this paper. Siberian snakes are essential tools to preserve polarization when accelerating polarized beams to higher energy. At the same time, the higher order resonances still can cause polarization loss. As seen in RHIC, the betatron tune has to be carefully set and maintained on the ramp and during the store to avoid polarization loss. In addition, the orbit control is also critical to preserve polarization. The higher polarization during this run comes from several improvements over last run. First we have a much better orbit on the ramp. The orbit feedback brings down the vertical rms orbit error to 0.1mm, much better than the 0.5mm last run. With correct BPM offset and vertical realignment, this rms orbit error is indeed small. Second, the jump quads in the AGS improved input polarization for RHIC. Third, the vertical tune was pushed further away from 7/10 snake resonance. The tune feedback maintained the tune at the desired value through the ramp. To calibrate the analyzing power of RHIC polarimeters at any energy above

  17. RHIC Polarized proton operation

    Energy Technology Data Exchange (ETDEWEB)

    Huang, H.; Ahrens, L.; Alekseev, I.G.; Aschenauer, E.; Atoian, G.; Bai, M.; Bazilevsky, A.; Blaskiewicz, M.; Brennan, J.M.; Brown, K.A.; Bruno, D.; Connolly, R.; Dion, A.; D' Ottavio, T.; Drees, K.A.; Fischer, W.; Gardner, C.; Glenn, J.W.; Gu, X.; Harvey, M.; Hayes, T.; Hoff, L.; Hulsart, R.L.; Laster, J.; Liu, C.; Luo, Y.; MacKay, W.W.; Makdisi, Y.; Marr, G.J.; Marusic, A.; Meot, F.; Mernick, K.; Michnoff, R,; Minty, M.; Montag, C.; Morris, J.; Nemesure, S.; Poblaguev, A.; Ptitsyn, V.; Ranjibar, V.; Robert-Demolaize, G.; Roser, T.; J.; Severino, F.; Schmidke, B.; Schoefer, V.; Severino, F.; Smirnov, D.; Smith, K.; Steski, D.; Svirida, D.; Tepikian, S.; Trbojevic, D.; Tsoupas, N.; Tuozzolo, J. Wang, G.; Wilinski, M.; Yip, K.; Zaltsman, A.; Zelenski, A.; Zeno, K.; Zhang, S.Y.

    2011-03-28

    The Relativistic Heavy Ion Collider (RHIC) operation as the polarized proton collider presents unique challenges since both luminosity(L) and spin polarization(P) are important. With longitudinally polarized beams at the experiments, the figure of merit is LP{sup 4}. A lot of upgrades and modifications have been made since last polarized proton operation. A 9 MHz rf system is installed to improve longitudinal match at injection and to increase luminosity. The beam dump was upgraded to increase bunch intensity. A vertical survey of RHIC was performed before the run to get better magnet alignment. The orbit control is also improved this year. Additional efforts are put in to improve source polarization and AGS polarization transfer efficiency. To preserve polarization on the ramp, a new working point is chosen such that the vertical tune is near a third order resonance. The overview of the changes and the operation results are presented in this paper. Siberian snakes are essential tools to preserve polarization when accelerating polarized beams to higher energy. At the same time, the higher order resonances still can cause polarization loss. As seen in RHIC, the betatron tune has to be carefully set and maintained on the ramp and during the store to avoid polarization loss. In addition, the orbit control is also critical to preserve polarization. The higher polarization during this run comes from several improvements over last run. First we have a much better orbit on the ramp. The orbit feedback brings down the vertical rms orbit error to 0.1mm, much better than the 0.5mm last run. With correct BPM offset and vertical realignment, this rms orbit error is indeed small. Second, the jump quads in the AGS improved input polarization for RHIC. Third, the vertical tune was pushed further away from 7/10 snake resonance. The tune feedback maintained the tune at the desired value through the ramp. To calibrate the analyzing power of RHIC polarimeters at any energy above

  18. Maritime security : progress made in implementing Maritime Transportation Security Act, but concerns remain : statement of Margaret Wrightson, Director, Homeland Security and Justice Issues

    Science.gov (United States)

    2003-09-09

    After the events of September 11, 2001, concerns were raised over the security of U.S. ports and waterways. In response to the concerns over port security, Congress passed the Maritime Transportation Security Act in November 2002. The act created a b...

  19. Jamaican Maritime Security. What are the Capability Gaps that Limit the Jamaica Defence Force in the Execution of its Roles in Maritime Security

    Science.gov (United States)

    2017-06-09

    centuries, the island repeatedly changed hands between the Spanish and the English until 1655, when the English defeated the Spanish and took control...questions by taking a more in-depth look at the current and emerging maritime security landscape , and the effectiveness of the JDF in executing its roles

  20. The Successes and Failures of the European Union Integrated Maritime Policy: Critical Mid-term Review 2007-2013

    Directory of Open Access Journals (Sweden)

    Marin Chintoan Uta

    2014-08-01

    Full Text Available The European Council adopted the first EU Sustainable Development Strategy in 2001 (Gothenburg strategy, later on ambitiously updated in June 2006. The mainstreaming in the maritime domain is the Integrated Maritime Policy (IMP launched in 2007. This commentary provides a critical mid-term review on the status of IMP implementation, outlining the successes and failures of the implementation process from a governance perspective. The review focuses on the Integrated Maritime Surveillance, one of the pillars of the Integrated Maritime Policy, using this as a case study for evaluating the implementation progress against the stated objectives and the associated governance model. The outcome suggests that while the EU Integrated Maritime Policy has stimulated a lot of interest for a new maritime vision at EU level and has initiated important steps towards its implementation, including new maritime governance paradigm, so far it has failed to promote the necessary changes to boost the cooperative and sustainable environment it has claimed to do. In the particular case of the Integrated Maritime Surveillance, despite the strong political commitment of the European Commission and the considerable budget expenditure, the EU still has not been able to achieve the targeted Common Information Sharing Environment, failing an important milestone towards building sustainability in the maritime domain.

  1. Maritime Strike Operations Tactics Development and Evaluation, Eglin Air Force Base, Florida. Final Environmental Assessment

    Science.gov (United States)

    2013-05-01

    Investigations of the stomach contents of leatherback sea tllltles revealed that a substantial percentage (44 percent of the 16 cases examined...pelagic stages, Kemp’s ridley sea tlutles are largely cancrivorous (crab eating), with a preference for portunid crabs (Bjomdal 1997). Stomach ...gut blockage, decreased absorption efficiency, absorption of toxins, effects of general intestinal blockage (such as local necrosis or ulceration

  2. Our Polar Past

    Science.gov (United States)

    Clary, Renee; Wandersee, James

    2009-01-01

    The study of polar exploration is fascinating and offers students insights into the history, culture, and politics that affect the developing sciences at the farthest ends of Earth. Therefore, the authors think there is value in incorporating polar exploration accounts within modern science classrooms, and so they conducted research to test their…

  3. Terahertz polarization imaging

    NARCIS (Netherlands)

    Van der Valk, N.C.J.; Van der Marel, W.A.M.; Planken, P.C.M.

    2005-01-01

    We present a new method to measure the polarization state of a terahertz pulse by using a modified electrooptic sampling setup. To illustrate the power of this method, we show two examples in which the knowledge of the polarization of the terahertz pulse is essential for interpreting the results:

  4. Polarized proton beams

    International Nuclear Information System (INIS)

    Roser, T.

    1995-01-01

    The acceleration of polarized proton beams in circular accelerators is complicated by the presence of numerous depolarizing spin resonances. Careful and tedious minimization of polarization loss at each of these resonances allowed acceleration of polarized proton beams up to 22 GeV. It has been the hope that Siberian Snakes, which are local spin rotators inserted into ring accelerators, would eliminate these resonances and allow acceleration of polarized beams with the same ease and efficiency that is now routine for unpolarized beams. First tests at IUCF with a full Siberian Snake showed that the spin dynamics with a Snake can be understood in detail. The author now has results of the first tests of a partial Siberian Snake at the AGS, accelerating polarized protons to an energy of about 25 GeV. These successful tests of storage and acceleration of polarized proton beams open up new possibilities such as stored polarized beams for internal target experiments and high energy polarized proton colliders

  5. Polar Science Is Cool!

    Science.gov (United States)

    Weeks, Sophie

    2012-01-01

    Children are fascinated by the fact that polar scientists do research in extremely cold and dangerous places. In the Arctic they might be viewed as lunch by a polar bear. In the Antarctic, they could lose toes and fingers to frostbite and the wind is so fast it can rip skin off. They camp on ice in continuous daylight, weeks from any form of…

  6. Precision Polarization of Neutrons

    Science.gov (United States)

    Martin, Elise; Barron-Palos, Libertad; Couture, Aaron; Crawford, Christopher; Chupp, Tim; Danagoulian, Areg; Estes, Mary; Hona, Binita; Jones, Gordon; Klein, Andi; Penttila, Seppo; Sharma, Monisha; Wilburn, Scott

    2009-05-01

    Determining polarization of a cold neutron beam to high precision is required for the next generation neutron decay correlation experiments at the SNS, such as the proposed abBA and PANDA experiments. Precision polarimetry measurements were conducted at Los Alamos National Laboratory with the goal of determining the beam polarization to the level of 10-3 or better. The cold neutrons from FP12 were polarized using optically polarized ^3He gas as a spin filter, which has a highly spin-dependent absorption cross section. A second ^ 3He spin filter was used to analyze the neutron polarization after passing through a resonant RF spin rotator. A discussion of the experiment and results will be given.

  7. Optically polarized 3He

    Science.gov (United States)

    Gentile, T. R.; Nacher, P. J.; Saam, B.; Walker, T. G.

    2018-01-01

    This article reviews the physics and technology of producing large quantities of highly spin-polarized 3He nuclei using spin-exchange (SEOP) and metastability-exchange (MEOP) optical pumping. Both technical developments and deeper understanding of the physical processes involved have led to substantial improvements in the capabilities of both methods. For SEOP, the use of spectrally narrowed lasers and K-Rb mixtures has substantially increased the achievable polarization and polarizing rate. For MEOP nearly lossless compression allows for rapid production of polarized 3He and operation in high magnetic fields has likewise significantly increased the pressure at which this method can be performed, and revealed new phenomena. Both methods have benefitted from development of storage methods that allow for spin-relaxation times of hundreds of hours, and specialized precision methods for polarimetry. SEOP and MEOP are now widely applied for spin-polarized targets, neutron spin filters, magnetic resonance imaging, and precision measurements. PMID:29503479

  8. Optically polarized 3He

    Science.gov (United States)

    Gentile, T. R.; Nacher, P. J.; Saam, B.; Walker, T. G.

    2017-10-01

    This article reviews the physics and technology of producing large quantities of highly spin-polarized 3He nuclei using spin-exchange (SEOP) and metastability-exchange (MEOP) optical pumping. Both technical developments and deeper understanding of the physical processes involved have led to substantial improvements in the capabilities of both methods. For SEOP, the use of spectrally narrowed lasers and K-Rb mixtures has substantially increased the achievable polarization and polarizing rate. For MEOP nearly lossless compression allows for rapid production of polarized 3He and operation in high magnetic fields has likewise significantly increased the pressure at which this method can be performed, and revealed new phenomena. Both methods have benefitted from development of storage methods that allow for spin-relaxation times of hundreds of hours, and specialized precision methods for polarimetry. SEOP and MEOP are now widely applied for spin-polarized targets, neutron spin filters, magnetic resonance imaging, and precision measurements.

  9. Parallel Polarization State Generation.

    Science.gov (United States)

    She, Alan; Capasso, Federico

    2016-05-17

    The control of polarization, an essential property of light, is of wide scientific and technological interest. The general problem of generating arbitrary time-varying states of polarization (SOP) has always been mathematically formulated by a series of linear transformations, i.e. a product of matrices, imposing a serial architecture. Here we show a parallel architecture described by a sum of matrices. The theory is experimentally demonstrated by modulating spatially-separated polarization components of a laser using a digital micromirror device that are subsequently beam combined. This method greatly expands the parameter space for engineering devices that control polarization. Consequently, performance characteristics, such as speed, stability, and spectral range, are entirely dictated by the technologies of optical intensity modulation, including absorption, reflection, emission, and scattering. This opens up important prospects for polarization state generation (PSG) with unique performance characteristics with applications in spectroscopic ellipsometry, spectropolarimetry, communications, imaging, and security.

  10. Air Research

    Science.gov (United States)

    EPA's air research provides the critical science to develop and implement outdoor air regulations under the Clean Air Act and puts new tools and information in the hands of air quality managers and regulators to protect the air we breathe.

  11. The Maritimes natural gas market overview and assessment : an energy market assessment

    International Nuclear Information System (INIS)

    2003-06-01

    The National Energy Board continually monitors the supply of all energy commodities in Canada along with the demand for Canadian energy commodities in domestic and export markets. This report provides an assessment of the functioning of the natural gas market in the Maritimes and discusses several issues facing the market. The focus of the report is on the existing markets served by the Maritimes and Northeast Pipeline (M and NP) in Nova Scotia and New Brunswick. It also includes Prince Edward Island, another Maritime market that may be served by the pipeline before the end of the decade. Since the initiation of the Sable Offshore Energy (SOE) Project more than 3 years ago, pipeline facilities have been built off the mainline M and NP system to serve Halifax and Point Tupper in Nova Scotia, and Saint John, Moncton, and St. George in New Brunswick. Enbridge Gas New Brunswick has built distribution facilities in Fredericton and Oromocto, New Brunswick to serve large industrial, commercial and residential consumers. A distribution system has not been set up for residential or commercial customers in Nova Scotia. Approximately 20 per cent of the Scotian production is being consumed in the Maritimes, while 80 per cent of the gas produced from the SOE Project is being exported to the United States. Despite the high export, the Board is satisfied that the market is working to the benefit of Canadians because energy users in the Maritimes already have access to a variety of fuels at competitive prices. The Maritimes also benefited from the development of the natural gas industry and the export market has provided a large anchor market necessary for the development of offshore reserves. Domestic demand has also grown due to a pipeline system policy that has maintained low transportation rates to domestic users. The challenges facing the Maritimes gas market include the fact than many of the markets in the Maritimes are small, thereby reducing the economics of serving these

  12. REVERSE ENGINEERING AND 3D MODELLING FOR DIGITAL DOCUMENTATION OF MARITIME HERITAGE

    Directory of Open Access Journals (Sweden)

    F. Menna

    2012-09-01

    Full Text Available heritage in general. Despite this has been stressed with emphasis, three dimensional modelling of maritime cultural heritage is still not usual as for archaeology and architecture. Three-dimensional modelling in the maritime heritage needs particular requirements. Objects to be recorded range from small replicas in maritime museums up to full-scale vessels still in operation. High geometric accuracy, photorealism of final model and faithful rendering of salient details are usually needed, together with the classical requisites characterising the 3D modelling-from-reality process, i.e. automation, low cost, reliability and flexibility of the modelling technique. In this paper, a hybrid multi-technique approach is proposed for maritime heritage preservation and, as case study, the 3D modelling of a 3-meter-long scale model of a historic warship, the "Indomito", is presented. The survey is placed in a wider project aiming to realize the virtual maritime museum of Parthenope University of Naples, for making it available to a wider public and also preserving its cultural heritage. Preliminary results are presented and discussed, highlighting relevant aspects that emerged during the experiment.

  13. Random Finite Set Based Data Assimilation for Dynamic Data Driven Simulation of Maritime Pirate Activity

    Directory of Open Access Journals (Sweden)

    Peng Wang

    2017-01-01

    Full Text Available Maritime piracy is posing a genuine threat to maritime transport. The main purpose of simulation is to predict the behaviors of many actual systems, and it has been successfully applied in many fields. But the application of simulation in the maritime domain is still scarce. The rapid development of network and measurement technologies brings about higher accuracy and better availability of online measurements. This makes the simulation paradigm named as dynamic data driven simulation increasingly popular. It can assimilate the online measurements into the running simulation models and ensure much more accurate prediction of the complex systems under study. In this paper, we study how to utilize the online measurements in the agent based simulation of the maritime pirate activity. A new random finite set based data assimilation algorithm is proposed to overcome the limitations of the conventional vectors based data assimilation algorithms. The random finite set based general data model, measurement model, and simulation model are introduced to support the proposed algorithm. The details of the proposed algorithm are presented in the context of agent based simulation of maritime pirate activity. Two groups of experiments are used to practically prove the effectiveness and superiority of the proposed algorithm.

  14. Revealing the Linkage Network Dynamic Structures of Chinese Maritime Ports through Automatic Information System Data

    Directory of Open Access Journals (Sweden)

    Hongchu Yu

    2017-10-01

    Full Text Available Marine economic cooperation has emerged as a major theme in this era of globalization; hence, maritime network connectivity and dynamics have attracted more and more attention. Port construction and maritime route improvements increase maritime trade and thus facilitate economic viability and resource sustainability. This paper reveals the regional dimension of inter-port linkage dynamic structure of Chinese maritime ports from a complex multilayer perspective that is meaningful for strategic forecasting and regional long-term economic development planning. In this research, Automatic Information System (AIS-derived traffic flows were used to construct a maritime network and subnetworks based on the geographical locations of ports. The linkage intensity between subnetworks, the linkage tightness within subnetworks, the spatial isolation between high-intensity backbones and tight skeleton networks, and a linkage concentration index for each port were calculated. The ports, in turn, were analyzed based on these network attributes. This study analyzed the external competitiveness and internal cohesion of each subnetwork. The results revealed problems in port management and planning, such as unclear divisions in port operations. More critically, weak complementary relationships between the backbone and skeleton networks among the ports reduce connectivity and must be strengthened. This research contributes to the body of work supporting strategic decision-making for future development.

  15. The Use of Satellite Technologies for Maritime Surveillance: An Overview of EU Initiatives

    Directory of Open Access Journals (Sweden)

    Ruxandra-Laura BOSILCA

    2016-03-01

    Full Text Available The sea lies at the heart of the EU prosperity and security: the Union and its member states depend on open and secure seas and oceans for their trade, transportation, energy, food, mineral resources, tourism, and a healthy marine environment. Maritime surveillance constitutes a key enabler for safeguarding the EU strategic interests at sea, by providing vital information on developments over, on and under the sea surface and coastal areas. A fundamental role in the process of collecting and communicating relevant information is held by satellite technologies which open paths to cost-effective and innovative alternatives to traditional surveillance techniques. The article proceeds as follows. The first section briefly outlines the key importance of the sea for the economic, military, energy, food, environmental, health, and cultural dimensions of EU security. Then, the concept of “maritime surveillance” is explained within the broader context of maritime security in the following section. In order to explore the use of satellite technologies in the EU maritime surveillance mechanisms, the third section of the paper examines three cases related to: the vessel monitoring system (VMS and the vessel detection system (VDS; FRONTEX, the EU agency for external borders management, and the related framework of EUROSUR; and finally, the CleanSeaNet oil spill monitoring system developed by the European Maritime Safety Agency (EMSA. Lastly, the concluding section summarizes the main findings of the article.

  16. Environmental Implications of Maritime Vessel Intensification in Arctic Waters

    Science.gov (United States)

    Stevenson, T. C.; Banis, D.; Sheard, W.

    2016-12-01

    In 2016, the Arctic experienced some of the warmest monthly temperatures on record. Record high temperatures in the Arctic continue to cause rapid sea ice declines, opening new areas of ocean to commercial exploitation and transportation and causing significant reductions in critical sea ice habitats used by iconic species. Elevated maritime vessel traffic in the Arctic is projected to increase black carbon emissions, encourage the spread of invasive species, increase mammal strikes, intensify conflict with smaller subsistence boats, and heighten oil spill risks. The Arctic Council, an intergovernmental organization concerned with sustainable development and environmental protection, is working with member countries, indigenous participants and other groups on developing networks of marine protected areas within ecologically or biologically important areas. To help inform that process, we analyzed vessel traffic and marine protected area coverage occurring within ecologically or biologically significant areas in the circumpolar Arctic. Our preliminary findings suggest vessel traffic within ecologically or biologically significant areas were highest around Iceland, Norway, Russia and United States but differed by vessel type. The density of fishing vessels occurring within ecologically or biologically important areas were highest near Norway, Iceland, Faroe Islands, parts of Greenland and United States, whereas vessels carrying liquefied natural gas and oil were concentrated near Norway and Russia. The percentage of area covered by marine protected areas within ecologically or biologically significant areas was low, with the exception of places like Wrangel Island, Svalbard, and areas around Greenland. These findings are important because it illustrates ecologically or biologically significant areas in the Arctic are vulnerable to projected vessel traffic intensification and the level of protection afforded by marine protected areas is relatively low.

  17. Fieldwork Methodology in South American Maritime Archaeology: A Critical Review

    Science.gov (United States)

    Argüeso, Amaru; Ciarlo, Nicolás C.

    2017-12-01

    In archaeology, data obtained from the analysis of material evidence (i.e., the archaeological record) from extensive excavations have been a significant means for the ultimate development of interpretations about human life in the past. Therefore, the methodological procedures and tools employed during fieldwork are of crucial importance due to their effect on the information likely to be recovered. In the case of maritime archaeology, the development of rigorous methods and techniques allowed for reaching outcomes as solid as those from the work performed on land. These improvements constituted one of the principal supports—if not, the most important pillar—for its acceptance as a scientific field of study. Over time, the growing diversity of sites under study (e.g., shipwrecks, ports, dockyards, and prehistoric settlements) and the underwater environments encountered made it clear that there was a need for the application of specific methodological criteria, in accordance with the particularities of the sites and of each study (e.g., the research aims and the available resources). This article presents some ideas concerning the methodologies used in South American investigations that have exhibited a strong emphasis on the analysis of historical shipwrecks (the sixteenth to twentieth centuries). Based on a state-of-the-knowledge review of these research projects, in particular where excavations were conducted, the article focuses on the details of the main strategies adopted and results achieved. The ideas proposed in this article can be useful as a starting point for future activities of surveying, recording, and excavating shipwrecks.

  18. Polarization at the SLC

    Energy Technology Data Exchange (ETDEWEB)

    Moffeit, K.C.

    1988-10-01

    The Stanford Linear collider was designed to accommodate polarized electron beams. Longitudinally polarized electrons colliding with unpolarized positrons at a center of mass energy near the Z/sup 0/ mass can be used as novel and sensitive probes of the electroweak process. A gallium arsenide based photon emission source will provide a beam of longitudinally polarized electrons of about 45 percent polarization. A system of bend magnets and a superconducting solenoid will be used to rotate the spins so that the polarization is preserved while the 1.21 GeV electrons are stored in the damping ring. Another set of bend magnets and two superconducting solenoids orient the spin vectors so that longitudinal polarization of the electrons is achieved at the collision point with the unpolarized positrons. A system to monitor the polarization based on Moller and Compton scattering will be used. Nearly all major components have been fabricated and tested. Subsystems of the source and polarimeters have been installed, and studies are in progress. The installation and commissioning of the entire system will take place during available machine shutdown periods as the commissioning of SLC progresses. 8 refs., 16 figs., 1 tab.

  19. Atmospheric convectively coupled Kelvin waves over Indian Ocean: initiation, propagation and interactions with the Maritime Continent

    Science.gov (United States)

    Baranowski, Dariusz; Flatau, Maria; Flatau, Piotr

    2017-04-01

    Atmospheric convectively coupled Kelvin waves (CCKWs) propagate eastward in the equatorial belt and represent one of key modes of the intraseasonal variability in the topical atmosphere. CCKWs with other waves are building blocks of the Madden-Julian Oscillations (MJO), but their activity is not limited to the MJO itself. In this study, we utilize Lagrangian analysis, which allows tracking individual CCKW events. Such an approach enables identification of initiation and decay of convective events as well as analysis of environmental conditions throughout the lifetime of a CCKW. Analysis of 15-year-long global record of CCKW activity, derived from TRMM satellite data, shows that Indian Ocean basin is characterized by globally largest activity of CCKWs and that about 40% of events active in that region are sequential waves, which propagate in close proximity to each other. Analysis of environmental conditions identifies air-sea interaction, primarily development of the diurnal warm layers, to be an important contributor to the initiation of CCKW events over Indian Ocean basin. CCKWs events, which initiation over the same area within a few days of each other are proceeded by abnormally high diurnal SST due to warm layer development. Propagation of a CCKW across the Indian Ocean is characterized by coherent variability in air-sea fluxes: increase of wind speed and latent heat flux, and suppression of diurnal warm layer development, decrease in SST and lower tropospheric temperature and humidity. This typical variability last for about 5 days, after which time most of variables relax to their climatological levels. However, SST and lower tropospheric humidity rectify into longer, intraseasonal time scale. Magnitude of this variability increases monotonically across the Indian Ocean as CCKWs propagate eastward and achieves maximum west of the coast of Sumatra. The Maritime Continent (MC), which bounds Indian Ocean from the east, is a net sink of CCKW activity, which

  20. Polarized atomic beams for targets

    International Nuclear Information System (INIS)

    Grueebler, W.

    1984-01-01

    The basic principle of the production of polarized atomic hydrogen and deuterium beams are reviewed. The status of the present available polarization, density and intensity are presented. The improvement of atomic beam density by cooling the hydrogen atoms to low velocity is discussed. The possible use of polarized atomic beams as targets in storage rings is shown. It is proposed that polarized atomic beams can be used to produce polarized gas targets with high polarization and greatly improved density

  1. Polarized scintillator targets

    Science.gov (United States)

    van den Brandt, B.; Bunyatova, E. I.; Hautle, P.; Konter, J. A.; Mango, S.

    2000-05-01

    The hydrogen nuclei in an organic scintillator have been polarized to more than 80% and the deuterons in its fully deuterated version to 24%. The scintillator, doped with TEMPO, has been polarized dynamically in a field of 2.5 T in a vertical dilution refrigerator in which a plastic lightguide transports the scintillation light from the sample in the mixing chamber to a photomultiplier outside the cryostat. Sizeable solid samples with acceptable optical properties and light output have been prepared and successfully operated as "live" polarized targets in nuclear physics experiments.

  2. Polarized scintillator targets

    Energy Technology Data Exchange (ETDEWEB)

    Brandt, B. van den E-mail: vandenbrandt@psi.ch; Bunyatova, E.I.; Hautle, P.; Konter, J.A.; Mango, S

    2000-05-21

    The hydrogen nuclei in an organic scintillator have been polarized to more than 80% and the deuterons in its fully deuterated version to 24%. The scintillator, doped with TEMPO, has been polarized dynamically in a field of 2.5 T in a vertical dilution refrigerator in which a plastic lightguide transports the scintillation light from the sample in the mixing chamber to a photomultiplier outside the cryostat. Sizeable solid samples with acceptable optical properties and light output have been prepared and successfully operated as 'live' polarized targets in nuclear physics experiments.

  3. Heidelberg polarized alkali source

    International Nuclear Information System (INIS)

    Kraemer, D.; Steffens, E.; Jaensch, H.; Philipps Universitaet, Marburg, Germany)

    1984-01-01

    A new atomic beam type polarized alkali ion source has been installed at Heidelberg. In order to improve the beam polarization considerably optical pumping is applied in combination with an adiabatic medium field transition which results in beams in single hyperfine sublevels. The m state population is determined by laser-induced fluorescence spectroscopy. Highly polarized beams (P/sub s/ > 0.9, s = z, zz) with intensities of 30 to 130 μA can be extracted for Li + and Na + , respectively

  4. Network-Centric Maritime Radiation Awareness and Interdiction Experiments

    National Research Council Canada - National Science Library

    Bordetsky, Alex; Dougan, Arden D; Nekoogar, Faranak

    2006-01-01

    .... This joint NPS-LLNL project is based on the NPS Tactical Network Topology (TNT) comprised of long-haul OFDM networks combined with self-forming wireless mesh links to air, surface, ground, and underwater unmanned vehicles...

  5. Polarization measurement in the COMPASS polarized target

    CERN Document Server

    Kondo, K; Baum, G; Berglund, P; Doshita, N; Gautheron, F; Görtz, S; Hasegawa, T; Horikawa, N; Ishimoto, S; Iwata, T; Kisselev, Yu V; Koivuniemi, J H; Le Goff, J M; Magnon, A; Meyer, W; Reicherz, G; Matsuda, T

    2004-01-01

    Continuous wave nuclear magnetic resonance (NMR) is used to determine the target polarization in the COMPASS experiment. The system is made of the so-called Liverpool Q-meters, Yale-cards, and VME modules for data taking and system controlling. In 2001 the NMR coils were embedded in the target material, while in 2002 and 2003 the coils were mounted on the outer surface of the target cells to increase the packing factor of the material. Though the error of the measurement became larger with the outer coils than with the inner coils, we have performed stable measurements throughout the COMPASS run time for 3 years. The maximum polarization was +57% and -53% as the average in the target cells.

  6. Introduction of Bayesian network in risk analysis of maritime accidents in Bangladesh

    Science.gov (United States)

    Rahman, Sohanur

    2017-12-01

    Due to the unique geographic location, complex navigation environment and intense vessel traffic, a considerable number of maritime accidents occurred in Bangladesh which caused serious loss of life, property and environmental contamination. Based on the historical data of maritime accidents from 1981 to 2015, which has been collected from Department of Shipping (DOS) and Bangladesh Inland Water Transport Authority (BIWTA), this paper conducted a risk analysis of maritime accidents by applying Bayesian network. In order to conduct this study, a Bayesian network model has been developed to find out the relation among parameters and the probability of them which affect accidents based on the accident investigation report of Bangladesh. Furthermore, number of accidents in different categories has also been investigated in this paper. Finally, some viable recommendations have been proposed in order to ensure greater safety of inland vessels in Bangladesh.

  7. An Evidential Reasoning-Based CREAM to Human Reliability Analysis in Maritime Accident Process.

    Science.gov (United States)

    Wu, Bing; Yan, Xinping; Wang, Yang; Soares, C Guedes

    2017-10-01

    This article proposes a modified cognitive reliability and error analysis method (CREAM) for estimating the human error probability in the maritime accident process on the basis of an evidential reasoning approach. This modified CREAM is developed to precisely quantify the linguistic variables of the common performance conditions and to overcome the problem of ignoring the uncertainty caused by incomplete information in the existing CREAM models. Moreover, this article views maritime accident development from the sequential perspective, where a scenario- and barrier-based framework is proposed to describe the maritime accident process. This evidential reasoning-based CREAM approach together with the proposed accident development framework are applied to human reliability analysis of a ship capsizing accident. It will facilitate subjective human reliability analysis in different engineering systems where uncertainty exists in practice. © 2017 Society for Risk Analysis.

  8. Development of a Gridded Maritime Traffic DB for e-Navigation

    Directory of Open Access Journals (Sweden)

    Kwang-Il Kim

    2014-12-01

    Full Text Available In the era of e-Navigation, it is important to deliver maritime traffic information from a shore based station to all navigating vessels. However, in a vessel boarding system, there is a limit to the amount of raw traffic data that can be processed. In this paper, we used the Automatic Identification System (AIS data as metadata to build up the maritime traffic gridded database by projecting traffic data on a geographic coordinate system. In order to apply this database to the image layer for transferring to the ship efficiently, we have developed a maritime traffic display layer and route traffic information layer. All simulated data was collected and analyzed with the AIS in a Vessel Traffic Service(VTS center.

  9. Public health preparedness for maritime terrorist attacks on ports and coastal waters.

    Science.gov (United States)

    Wassel, John J

    2008-01-01

    To assess the risk of mass casualties and necessary public health and provider preparation relating to maritime terrorist attacks on the US ports. Articles were obtained by searching PubMed database, Google, and Google Scholar search engines using terms such as "maritime security," "maritime terrorism,"port security," "terrorist attacks on the U.S. ports," "terrorist nuclear attacks," "terrorist attacks on liquefied natural gas tankers," and "terrorist attack on high occupancy ships." U.S. ports and coastal waters. Seventy-six journal articles were reviewed. Morbidity and mortality high for nuclear terrorist attack; mortality low but morbidity potentially high for radiological attacks. It would be more difficult for terrorist attack on natural gas tankers to cause high mortality and/or morbidity.

  10. Dynamic nuclear spin polarization

    Energy Technology Data Exchange (ETDEWEB)

    Stuhrmann, H.B. [GKSS-Forschungszentrum Geesthacht GmbH (Germany)

    1996-11-01

    Polarized neutron scattering from dynamic polarized targets has been applied to various hydrogenous materials at different laboratories. In situ structures of macromolecular components have been determined by nuclear spin contrast variation with an unprecedented precision. The experiments of selective nuclear spin depolarisation not only opened a new dimension to structural studies but also revealed phenomena related to propagation of nuclear spin polarization and the interplay of nuclear polarisation with the electronic spin system. The observation of electron spin label dependent nuclear spin polarisation domains by NMR and polarized neutron scattering opens a way to generalize the method of nuclear spin contrast variation and most importantly it avoids precontrasting by specific deuteration. It also likely might tell us more about the mechanism of dynamic nuclear spin polarisation. (author) 4 figs., refs.

  11. Time Domain Induced Polarization

    DEFF Research Database (Denmark)

    Fiandaca, Gianluca; Auken, Esben; Christiansen, Anders Vest

    2012-01-01

    Time-domain-induced polarization has significantly broadened its field of reference during the last decade, from mineral exploration to environmental geophysics, e.g., for clay and peat identification and landfill characterization. Though, insufficient modeling tools have hitherto limited the use...... of time-domaininduced polarization for wider purposes. For these reasons, a new forward code and inversion algorithm have been developed using the full-time decay of the induced polarization response, together with an accurate description of the transmitter waveform and of the receiver transfer function......%. Furthermore, the presence of low-pass filters in time-domain-induced polarization instruments affects the early times of the acquired decays (typically up to 100 ms) and has to be modeled in the forward response to avoid significant loss of resolution. The developed forward code has been implemented in a 1D...

  12. Polarized proton colliders

    International Nuclear Information System (INIS)

    Roser, T.

    1995-01-01

    High energy polarized beam collisions will open up the unique physics opportunities of studying spin effects in hard processes. This will allow the study of the spin structure of the proton and also the verification of the many well documented expectations of spin effects in perturbative QCD and parity violation in W and Z production. Proposals for polarized proton acceleration for several high energy colliders have been developed. A partial Siberian Snake in the AGS has recently been successfully tested and full Siberian Snakes, spin rotators, and polarimeters for RHIC are being developed to make the acceleration of polarized beams to 250 GeV possible. This allows for the unique possibility of colliding two 250 GeV polarized proton beams at luminosities of up to 2 x 10 32 cm -2 s -1

  13. Plasma polarization spectroscopy

    International Nuclear Information System (INIS)

    Iwamae, Atsushi; Horimoto, Yasuhiro; Fujimoto, Takashi; Hasegawa, Noboru; Sukegawa, Kouta; Kawachi, Tetsuya

    2005-01-01

    The electron velocity distribution function (EVDF) in plasma can be anisotropic in laser-produced plasmas. We have developed a new technique to evaluate the polarization degree of the emission lines in the extreme vacuum ultra violet wavelength region. The polarization of the emission lines and the continuums from the lithium-like nitrogen and from helium- and hydrogen-like carbon in recombining plasma is evaluated. Particle simulation in the velocity space gives the time scale for relaxation of anisotropic EVDFs. (author)

  14. Ultracold Polar Molecules

    Science.gov (United States)

    2016-04-01

    AFRL-AFOSR-UK-TR-2016-0005 Ultracold Polar Molecules Jeremy Hutson UNIVERSITY OF DURHAM Final Report 04/01/2016 DISTRIBUTION A: Distribution approved...DATES COVERED (From - To) 15-Jan-2010 to 14-Jul-2015 4. TITLE AND SUBTITLE Final Report on Grant FA8655-10-1-3033 on Ultracold Polar Molecules 5a...formation of ultracold 87RbCs molecules in their rovibrational ground state by magnetoassociation followed by STIRAP, resulting in 14 papers acknowledging

  15. AIRS/Aqua L2 CO2 support retrieval (AIRS-only) V005 (AIRS2SPC) at GES DISC

    Data.gov (United States)

    National Aeronautics and Space Administration — The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. In...

  16. AIRS/Aqua L2 Support Retrieval (AIRS-only) V006 (AIRS2SUP) at GES DISC

    Data.gov (United States)

    National Aeronautics and Space Administration — The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. In...

  17. AIRS/Aqua L2 Standard Physical Retrieval (AIRS-only) V006 (AIRS2RET) at GES DISC

    Data.gov (United States)

    National Aeronautics and Space Administration — The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. In...

  18. Regional Maritime Contexts and the Maritorium: A Latin American Perspective on Archaeological Land and Sea Integration

    Science.gov (United States)

    Herrera, Jorge M.; Chapanoff, Miguel

    2017-12-01

    In the field of maritime archaeology, the use of maritime, coastal, riverine, and lacustrine spaces by past societies has been perceived in different and changing viewpoints. These perspectives have flourished in dynamic and varying ways in many countries, and under different theoretical constructs. If in the 1970s the subject was perhaps not recognized as a central research subject by much of our community, it is now not only accepted but it has become a robust area of interest in maritime research. Two concepts in Latin America have been accepted that have had widespread application and influence, namely the regional maritime context and the maritorio. The points of contact between both are so intense that it is possible to speak about a single alternative with two possible names. In this article, their origins, applications, and theoretical influences are presented in a way that unifies these two concepts into a single approach (the maritorium), and examines how these ideas have been applied to research carried out in Mexico, Chile, and Uruguay. These applications are wide ranging, as they include the interconnected complexity between land and sea as used and inhabited by past societies. They have been applied in the study of ship traps, whole fleets, sites of maritime conflict and warfare, exploration activities, and ethnographic research. These will also be presented in light of other concepts of similar interest in the international sphere, such as the widespread concept of the Maritime Cultural Landscape, and also in view of other theoretical frameworks coming from the wider sphere of the profession, such as Landscape Archaeology and Phenomenological Archaeology.

  19. Hsp Polarization Verification

    Science.gov (United States)

    Bless, Robert

    1991-07-01

    This proposal defines the procedure for determining the instrumental polarization of the polarimetric IDT (IDT#1, POL) on the HSP. 1 of 2 unpolarized standard stars wil be observed using various filter-polarizer combinations. These observations will permit the instrumental polarization to be calibrated. The instrumental polarization must be determined to a high precision in order to vectoriallly remove it from HSP polarization observations to determine the actual astronomical polarization. Final run of proposal will look at one of 2 possible stars previously observed to get another look at the throughput. Revision History: Mark H. Slovak 8/30/88 Translated to V2 proposal instructions (RPSS V6.2) S. Laurent 1/20/89 Updated: Sally Laurent 2/24/89, 3/20/89, 4/13/89, 5/12/89 Modified: P. Stanley 1/15/90 - change to use CTA selected targets only; Fixes for aberration problem - SALM 7/30/90; Based on SV/HSP 1386. New submission changed targets and revised scheduling strategy. Revised: 26 Aug 92 J. Dolan, L. Walter, P. Reppert want to re-run the proposal (3985) one last time to bring down errors.

  20. The polar year starts in March. Arctics promises. When the North path will be opened to maritime traffic

    International Nuclear Information System (INIS)

    Lepetit, V.; Remoue, A.

    2007-01-01

    From Greenland to Alaska and from the Barents sea to the Okhotsk sea, oil companies are performing exploratory drillings looking for the North pole black gold. Far away from being an utopia, this new conquest of the great north is organizing yet. The Arctic hydrocarbon reserves may represent 10% of the world reserves. Moreover, with the increasing melting of ice sheets, the Arctic path will be opened to navigation and exploration in less than 25 years. The great north territories are shared between eight countries (USA, Canada, Denmark, Island, Norway, Sweden, Finland and Russia) and leads to disputes about the limits of territorial waters. (J.S.)