WorldWideScience

Sample records for maritime environment task

  1. 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....

  2. Correlation between observation task performance and visual acuity, contrast sensitivity and environmental light in a simulated maritime study.

    Science.gov (United States)

    Koefoed, Vilhelm F; Assmuss, Jörg; Høvding, Gunnar

    2018-03-25

    To examine the relevance of visual acuity (VA) and index of contrast sensitivity (ICS) as predictors for visual observation task performance in a maritime environment. Sixty naval cadets were recruited to a study on observation tasks in a simulated maritime environment under three different light settings. Their ICS were computed based on contrast sensitivity (CS) data recorded by Optec 6500 and CSV-1000E CS tests. The correlation between object identification distance and VA/ICS was examined by stepwise linear regression. The object detection distance was significantly correlated to the level of environmental light (p maritime environment may presumably be ascribed to the normal and uniform visual capacity in all our study subjects. © 2018 Acta Ophthalmologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.

  3. A Task No Maritime Operational Commander Wants: Maritime Interception Operations (MIO) Are Not Going Away

    National Research Council Canada - National Science Library

    Dawley, Sterling

    2003-01-01

    Maritime Interception Operations (MIO) as a mission area for USN and USCG assets does not seem to be going away anytime soon The purpose of this essay is to assess past MIO efforts and offer recommendations to assist the operational...

  4. Treating oil in a maritime environment

    International Nuclear Information System (INIS)

    Seebacher, G.

    2002-01-01

    Some details of the International Maritime Organisation's marine pollution regulations are discussed. In simple terms, under IMO regulations oily water must be processed through approved equipment and can be legally discharged if the oil content in the treated effluent is less than 15 ppm. These regulations also make it clear that it is not permitted to use emulsifiers to hide the oil in the effluent. To separate the free oil from water, gravity enhanced separators can be used effectively. With conventional means it is possible to remove free oil from an oily water mixture, to the less than 15 part per million oil content. Conventional IMO certified oil content meters accurately read free oil content in the 0-30 ppm region, to prevent formation of an oil film from treated oily water discharges. Some additional basic rules of thumb worthy of consideration when separating oil from oily water: in general, it is cheaper to prevent oil discharge of oil into the effluent stream than to remove it; emulsifier-enriched lubricating oils emulsify readily and are difficult to remove when present in suspended droplets; the larger the amount of contamination, the greater the difficulty of removing the oil; an ounce of prevention is worth a pound of cure

  5. ''POSEIDON'': one radioactive matter dispersion model in maritime environment

    International Nuclear Information System (INIS)

    Raffestin, D.; Lepicard, S.

    1995-02-01

    The radio element filiation effect respect, during a spoil in maritime environment was necessary to implement the mathematical integration technologies aiming to optimize the speed calculation and memory. These choices allowed to treat the filiation on several descent levels with compartmental more exact models. Recent data on the fishing product sources and their destinations allow now to sharpen the results by radiological shock decomposition on the European Community countries. 2 refs., 20 figs., 11 tabs., 4 Appendixes

  6. Environments for online maritime simulators with cloud computing capabilities

    Science.gov (United States)

    Raicu, Gabriel; Raicu, Alexandra

    2016-12-01

    This paper presents the cloud computing environments, network principles and methods for graphical development in realistic naval simulation, naval robotics and virtual interactions. The aim of this approach is to achieve a good simulation quality in large networked environments using open source solutions designed for educational purposes. Realistic rendering of maritime environments requires near real-time frameworks with enhanced computing capabilities during distance interactions. E-Navigation concepts coupled with the last achievements in virtual and augmented reality will enhance the overall experience leading to new developments and innovations. We have to deal with a multiprocessing situation using advanced technologies and distributed applications using remote ship scenario and automation of ship operations.

  7. Calculation and simulation of atmospheric refraction effects in maritime environments

    Science.gov (United States)

    Dion, Denis, Jr.; Gardenal, Lionel; Lahaie, P.; Forand, J. Luc

    2001-01-01

    Near the sea surface, atmospheric refraction and turbulence affect both IR transmission and image quality. This produces an impact on both the detection and classification/identification of targets. With the financial participation of the U.S. Office of Naval Research (ONR), Canada's Defence Research Establishment Valcartier (DREV) is developing PRIME (Propagation Resources In the Maritime Environment), a computer model aimed at describing the overall atmospheric effects on IR imagery systems in the marine surface layer. PRIME can be used as a complement to MODTRAN to compute the effective transmittance in the marine surface layer, taking into account the lens effects caused by refraction. It also provides information on image degradation caused by both refraction and turbulence. This paper reviews the refraction phenomena that take place in the surface layer and discusses their effects on target detection and identification. We then show how PRIME can benefit detection studies and image degradation simulations.

  8. Quantifying the Physiological Stress Response to Simulated Maritime Pilotage Tasks: The Influence of Task Complexity and Pilot Experience.

    Science.gov (United States)

    Main, Luana C; Wolkow, Alexander; Chambers, Timothy P

    2017-11-01

    The aim of this study was to quantify the stress associated with performing maritime pilotage tasks in a high-fidelity simulator. Eight trainee and 13 maritime pilots completed two simulated pilotage tasks of varying complexity. Salivary cortisol samples were collected pre- and post-simulation for both trials. Heart rate was measured continuously throughout the study. Significant changes in salivary cortisol (P = 0.000, η = 0.139), average (P = 0.006, η = 0.087), and peak heart rate (P = 0.013, η = 0.077) from pre- to postsimulation were found. Varying task complexity did partially influence stress response; average (P = 0.016, η = 0.026) and peak heart rate (P = 0.034, η = 0.020) were higher in the experimental condition. Trainees also recorded higher average (P = 0.000, η = 0.054) and peak heart rates (P = 0.027, η = 0.022). Performing simulated pilotage tasks evoked a measurable stress response in both trainee and expert maritime pilots.

  9. SeaTouch: A Haptic and Auditory Maritime Environment for Non Visual Cognitive Mapping of Blind Sailors

    Science.gov (United States)

    Simonnet, Mathieu; Jacobson, Dan; Vieilledent, Stephane; Tisseau, Jacques

    Navigating consists of coordinating egocentric and allocentric spatial frames of reference. Virtual environments have afforded researchers in the spatial community with tools to investigate the learning of space. The issue of the transfer between virtual and real situations is not trivial. A central question is the role of frames of reference in mediating spatial knowledge transfer to external surroundings, as is the effect of different sensory modalities accessed in simulated and real worlds. This challenges the capacity of blind people to use virtual reality to explore a scene without graphics. The present experiment involves a haptic and auditory maritime virtual environment. In triangulation tasks, we measure systematic errors and preliminary results show an ability to learn configurational knowledge and to navigate through it without vision. Subjects appeared to take advantage of getting lost in an egocentric “haptic” view in the virtual environment to improve performances in the real environment.

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

    DEFF Research Database (Denmark)

    Georgakaki, Aliki; Coffey, Robert; Lock, Grahm

    2005-01-01

    This paper reports the development of the maritime module within the framework of the Transport and Environment Database System (TRENDS) project. A detailed database has been constructed for the calculation of energy consumption and air pollutant emissions. Based on an in-house database...... 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...... 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...

  11. Operating environment threats influence on the maritime ferry technical system safety – the numerical approach

    Directory of Open Access Journals (Sweden)

    Kuligowska Ewa

    2017-06-01

    Full Text Available The material given in this paper delivers the procedure for numerical approach that allows finding the main practically important safety characteristics of the complex technical systems at the variable operation conditions including operating environment threats. The obtained results are applied to the safety evaluation of the maritime ferry technical system. It is assumed that the conditional safety functions are different at various operation states and have the exponential forms. Using the procedure and the program written in Mathematica, the considered maritime ferry technical system main characteristics including: the conditional and the unconditional expected values and standard deviations of the system lifetimes, the unconditional safety function and the risk function are determined.

  12. Advances in Small Remotely Piloted Aircraft Communications and Remote Sensing in Maritime Environments including the Arctic

    Science.gov (United States)

    McGillivary, P. A.; Borges de Sousa, J.; Wackowski, S.; Walker, G.

    2011-12-01

    Small remotely piloted aircraft have recently been used for maritime remote sensing, including launch and retrieval operations from land, ships and sea ice. Such aircraft can also function to collect and communicate data from other ocean observing system platforms including moorings, tagged animals, drifters, autonomous surface vessels (ASVs), and autonomous underwater vessels (AUVs). The use of small remotely piloted aircraft (or UASs, unmanned aerial systems) with a combination of these capabilities will be required to monitor the vast areas of the open ocean, as well as in harsh high-latitude ecosystems. Indeed, these aircraft are a key component of planned high latitude maritime domain awareness environmental data collection capabilities, including use of visible, IR and hyperspectral sensors, as well as lidar, meteorological sensors, and interferometric synthetic aperture radars (ISARs). We here first describe at-sea demonstrations of improved reliability and bandwidth of communications from ocean sensors on autonomous underwater vehicles to autonomous surface vessels, and then via remotely piloted aircraft to shore, ships and manned aircraft using Delay and Disruption Tolerant (DTN) communication protocols. DTN enables data exchange in communications-challenged environments, such as remote regions of the ocean including high latitudes where low satellite angles and auroral disturbances can be problematic. DTN provides a network architecture and application interface structured around optionally-reliable asynchronous message forwarding, with limited expectations of end-to-end connectivity and node resources. This communications method enables aircraft and surface vessels to function as data mules to move data between physically disparate nodes. We provide examples of the uses of this communication protocol for environmental data collection and data distribution with a variety of different remotely piloted aircraft in a coastal ocean environment. Next, we

  13. Robot Task Commander with Extensible Programming Environment

    Science.gov (United States)

    Hart, Stephen W (Inventor); Yamokoski, John D. (Inventor); Wightman, Brian J (Inventor); Dinh, Duy Paul (Inventor); Gooding, Dustin R (Inventor)

    2014-01-01

    A system for developing distributed robot application-level software includes a robot having an associated control module which controls motion of the robot in response to a commanded task, and a robot task commander (RTC) in networked communication with the control module over a network transport layer (NTL). The RTC includes a script engine(s) and a GUI, with a processor and a centralized library of library blocks constructed from an interpretive computer programming code and having input and output connections. The GUI provides access to a Visual Programming Language (VPL) environment and a text editor. In executing a method, the VPL is opened, a task for the robot is built from the code library blocks, and data is assigned to input and output connections identifying input and output data for each block. A task sequence(s) is sent to the control module(s) over the NTL to command execution of the task.

  14. 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......-institutional collaboration. In this paper, we look into the different stressors and risk factors of the sea regions in the High North. We elaborate on emergencies where integrated operations such as mass evacuation, oil spill recovery and salvage are needed. Coordination of such operations is a challenging task, where...

  15. Maritime English instruction – ensuring instructors’ competence

    Directory of Open Access Journals (Sweden)

    Clive Cole

    2007-10-01

    Full Text Available More than ninety percent of global trade is carried by sea. As a result it “has fostered an interdependency and inter-connectivity between peoples who would previously have considered themselves completely unconnected” (Mitropoulos, 2005. For the maritime industry which facilitates this activity, it is essential that a common working language, namely English, is competently used to safeguard the ship, its crew and the environment in which it sails. This presupposes that the graduates of maritime academies are well prepared and that their mentors are qualified to perform the task required by international regulations. This paper attempts to summarise a 2-year research project, funded by the International Association of Maritime Universities and completed by the authors in 2006, entitled “Profiling the Maritime English Instructor” (PROFS. It categorizes and describes the various types of Maritime English instructors presently employed at higher Maritime Education and Training institutions worldwide, defines the requirements regarding their professional qualifications in the areas of applied linguistics, methodology and the minimum maritime background knowledge demanded by the relevant international legislation, and thus provides a guideline for management and prospective instructors.

  16. China's Maritime Strategy Peaceful Rise

    National Research Council Canada - National Science Library

    Horrell, Steven L

    2008-01-01

    .... As a result the global maritime environment will be key to this continental power's continued growth As a subset of maritime strategy China's naval strategy and accompanying People's Liberation Army...

  17. Advanced Oil Spill Detection Algorithms For Satellite Based Maritime Environment Monitoring

    Science.gov (United States)

    Radius, Andrea; Azevedo, Rui; Sapage, Tania; Carmo, Paulo

    2013-12-01

    During the last years, the increasing pollution occurrence and the alarming deterioration of the environmental health conditions of the sea, lead to the need of global monitoring capabilities, namely for marine environment management in terms of oil spill detection and indication of the suspected polluter. The sensitivity of Synthetic Aperture Radar (SAR) to the different phenomena on the sea, especially for oil spill and vessel detection, makes it a key instrument for global pollution monitoring. The SAR performances in maritime pollution monitoring are being operationally explored by a set of service providers on behalf of the European Maritime Safety Agency (EMSA), which has launched in 2007 the CleanSeaNet (CSN) project - a pan-European satellite based oil monitoring service. EDISOFT, which is from the beginning a service provider for CSN, is continuously investing in R&D activities that will ultimately lead to better algorithms and better performance on oil spill detection from SAR imagery. This strategy is being pursued through EDISOFT participation in the FP7 EC Sea-U project and in the Automatic Oil Spill Detection (AOSD) ESA project. The Sea-U project has the aim to improve the current state of oil spill detection algorithms, through the informative content maximization obtained with data fusion, the exploitation of different type of data/ sensors and the development of advanced image processing, segmentation and classification techniques. The AOSD project is closely related to the operational segment, because it is focused on the automation of the oil spill detection processing chain, integrating auxiliary data, like wind information, together with image and geometry analysis techniques. The synergy between these different objectives (R&D versus operational) allowed EDISOFT to develop oil spill detection software, that combines the operational automatic aspect, obtained through dedicated integration of the processing chain in the existing open source NEST

  18. 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...

  19. 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 ...

  20. Adjustment capacity of maritime pine cambial activity in drought-prone environments.

    Directory of Open Access Journals (Sweden)

    Joana Vieira

    Full Text Available Intra-annual density fluctuations (IADFs are anatomical features formed in response to changes in the environmental conditions within the growing season. These anatomical features are commonly observed in Mediterranean pines, being more frequent in younger and wider tree rings. However, the process behind IADF formation is still unknown. Weekly monitoring of cambial activity and wood formation would fill this void. Although studies describing cambial activity and wood formation have become frequent, this knowledge is still fragmentary in the Mediterranean region. Here we present data from the monitoring of cambial activity and wood formation in two diameter classes of maritime pine (Pinus pinaster Ait., over two years, in order to test: (i whether the differences in stem diameter in an even-aged stand were due to timings and/or rates of xylogenesis; (ii if IADFs were more common in large trees; and (iii if their formation is triggered by cambial resumption after the summer drought. Larger trees showed higher rates of cell production and longer growing seasons, due to an earlier start and later end of xylogenesis. When a drier winter occurs, larger trees were more affected, probably limiting xylogenesis in the summer months. In both diameter classes a latewood IADF was formed in 2012 in response to late-September precipitation, confirming that the timing of the precipitation event after the summer drought is crucial in determining the resumption of cambial activity and whether or not an IADF is formed. It was the first time that the formation of a latewood IADF was monitored at a weekly time scale in maritime pine. The capacity of maritime pine to adjust cambial activity to the current environmental conditions represents a valuable strategy under the future climate change conditions.

  1. Adjustment capacity of maritime pine cambial activity in drought-prone environments.

    Science.gov (United States)

    Vieira, Joana; Campelo, Filipe; Rossi, Sergio; Carvalho, Ana; Freitas, Helena; Nabais, Cristina

    2015-01-01

    Intra-annual density fluctuations (IADFs) are anatomical features formed in response to changes in the environmental conditions within the growing season. These anatomical features are commonly observed in Mediterranean pines, being more frequent in younger and wider tree rings. However, the process behind IADF formation is still unknown. Weekly monitoring of cambial activity and wood formation would fill this void. Although studies describing cambial activity and wood formation have become frequent, this knowledge is still fragmentary in the Mediterranean region. Here we present data from the monitoring of cambial activity and wood formation in two diameter classes of maritime pine (Pinus pinaster Ait.), over two years, in order to test: (i) whether the differences in stem diameter in an even-aged stand were due to timings and/or rates of xylogenesis; (ii) if IADFs were more common in large trees; and (iii) if their formation is triggered by cambial resumption after the summer drought. Larger trees showed higher rates of cell production and longer growing seasons, due to an earlier start and later end of xylogenesis. When a drier winter occurs, larger trees were more affected, probably limiting xylogenesis in the summer months. In both diameter classes a latewood IADF was formed in 2012 in response to late-September precipitation, confirming that the timing of the precipitation event after the summer drought is crucial in determining the resumption of cambial activity and whether or not an IADF is formed. It was the first time that the formation of a latewood IADF was monitored at a weekly time scale in maritime pine. The capacity of maritime pine to adjust cambial activity to the current environmental conditions represents a valuable strategy under the future climate change conditions.

  2. Using IMPRINT to Guide Experimental Design with Simulated Task Environments

    Science.gov (United States)

    2015-06-18

    USING IMPRINT TO GUIDE EXPERIMENTAL DESIGN OF SIMULATED TASK ENVIRONMENTS THESIS Gregory...ENG-MS-15-J-052 USING IMPRINT TO GUIDE EXPERIMENTAL DESIGN WITH SIMULATED TASK ENVIRONMENTS THESIS Presented to the Faculty Department...Civilian, USAF June 2015 DISTRIBUTION STATEMENT A. APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED. AFIT-ENG-MS-15-J-052 USING IMPRINT

  3. Designing Prediction Tasks in a Mathematics Software Environment

    Science.gov (United States)

    Brunström, Mats; Fahlgren, Maria

    2015-01-01

    There is a recognised need in mathematics teaching for new kinds of tasks which exploit the affordances provided by new technology. This paper focuses on the design of prediction tasks to foster student reasoning about exponential functions in a mathematics software environment. It draws on the first iteration of a design based research study…

  4. 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....

  5. Relationships between work environment factors and workers' well-being in the maritime industry.

    Science.gov (United States)

    Nielsen, Morten Birkeland; Bergheim, Kjersti; Eid, Jarle

    2013-01-01

    The aim of this study was to determine whether physical and psychosocial work factors are related to the levels of job satisfaction and intentions to leave in the maritime industry, and to determine whether there exist cross-cultural differences in work factors, job satisfaction and intentions to leave between European and Filipino crew members. Using a cross-sectional survey design, the variables were assessed in a sample of 541 seafarers from 2 large Norwegian shipping companies. Work factors included safety perceptions,leadership, job demands, harassment, and team cohesion. The findings show that physical and psychosocial work factors are important correlates of both intentions to leave and job satisfaction, with safety perceptions, job demands, and team cohesion as the strongest and most consistent factors. As for cross-cultural differences, the findings show that European and Filipino respondents differ with regard to safety perceptions, laissez-faire leadership, authentic leadership,exposure to harassment, team cohesion, and intentions to leave. No differences were established with regard to overall job satisfaction. The findings support occupational stress models which emphasise the importance of situational factors in the understanding of well-being among workers. Shipping companies should therefore always take these factors into consideration when developing and implementing interventions aimed at improving employee well-being.

  6. Task exposures in an office environment: a comparison of methods.

    Science.gov (United States)

    Van Eerd, Dwayne; Hogg-Johnson, Sheilah; Mazumder, Anjali; Cole, Donald; Wells, Richard; Moore, Anne

    2009-10-01

    Task-related factors such as frequency and duration are associated with musculoskeletal disorders in office settings. The primary objective was to compare various task recording methods as measures of exposure in an office workplace. A total of 41 workers from different jobs were recruited from a large urban newspaper (71% female, mean age 41 years SD 9.6). Questionnaire, task diaries, direct observation and video methods were used to record tasks. A common set of task codes was used across methods. Different estimates of task duration, number of tasks and task transitions arose from the different methods. Self-report methods did not consistently result in longer task duration estimates. Methodological issues could explain some of the differences in estimates seen between methods observed. It was concluded that different task recording methods result in different estimates of exposure likely due to different exposure constructs. This work addresses issues of exposure measurement in office environments. It is of relevance to ergonomists/researchers interested in how to best assess the risk of injury among office workers. The paper discusses the trade-offs between precision, accuracy and burden in the collection of computer task-based exposure measures and different underlying constructs captures in each method.

  7. Securing Sub-Saharan Africa’s Maritime Environment: Lessons Learned from the Caribbean and Southeast Asia

    Science.gov (United States)

    2009-06-01

    Worst of Times: Maritime Security in the Asia-Pacific eds. Joshua Ho and Catherine Zara Raymond (Singapore: Institute of Defense and Strategic Studies...Security Outlook for Southeast Asia,” in The Best of Times, the Worst of Times: Maritime Security in the Asia-Pacific eds. Joshua Ho and Catherine Zara

  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. Task distribution mechanism for effective collaboration in virtual environments

    International Nuclear Information System (INIS)

    Khalid, S.; Ullah, S.; Alam, A.

    2016-01-01

    Collaborative Virtual Environments (CVEs) are computer generated worlds where two or more users can simultaneously interact with synthetic objects to perform a task. User performance is one of the main issues caused by either loose coordination, less awareness or communication among collaborating users. In this paper, a new model for task distribution is proposed, in which task distribution strategy among multiple users in CVEs is defined. The model assigns the task to collaborating users in CVEs either on static or dynamic basis. In static distribution there exists loose dependency and requires less communication during task realization whereas in dynamic distribution users are more dependent on each other and thus require more communication. In order to study the effect of static and dynamic task distribution strategies on user's performance in CVEs, a collaborative virtual environment is developed where twenty four (24) teams (each consists of two users) perform a task in collaboration under both strategies (static and dynamic). Results reveal that static distribution is more effective and increases users performance in CVEs. The outcome of this work will help the development of effective CVEs in the field of virtual assembly, repair, education and entertainment. (author)

  10. Maritime Military Decision Making in Environments of Extreme Information Ambiguity: An Initial Exploration

    National Research Council Canada - National Science Library

    Reeves, Andrew T

    2005-01-01

    ... to make effective decisions. An environment of extreme information ambiguity, a dependent variable, is one of the most difficult components of a battle where the decision maker may reach a confusing and debilitating point...

  11. The Asia-Pacific Maritime Security Strategy: Achieving U.S. National Security Objectives in a Changing Environment

    Science.gov (United States)

    2015-07-27

    extends into the South China Sea, the Indonesian government does not currently recognize China’s so-called “Nine-Dash Line” (which overlaps with that...Tribunal for the Law of the Sea (ITLOS), to resolve their maritime and territorial disputes. For example, Malaysia and Singapore used the...more rapidly and effectively to a wider range of potential maritime challenges. The rotational deployment of Littoral Combat Ships (LCS) in Singapore

  12. Adaptive Incremental Genetic Algorithm for Task Scheduling in Cloud Environments

    Directory of Open Access Journals (Sweden)

    Kairong Duan

    2018-05-01

    Full Text Available Cloud computing is a new commercial model that enables customers to acquire large amounts of virtual resources on demand. Resources including hardware and software can be delivered as services and measured by specific usage of storage, processing, bandwidth, etc. In Cloud computing, task scheduling is a process of mapping cloud tasks to Virtual Machines (VMs. When binding the tasks to VMs, the scheduling strategy has an important influence on the efficiency of datacenter and related energy consumption. Although many traditional scheduling algorithms have been applied in various platforms, they may not work efficiently due to the large number of user requests, the variety of computation resources and complexity of Cloud environment. In this paper, we tackle the task scheduling problem which aims to minimize makespan by Genetic Algorithm (GA. We propose an incremental GA which has adaptive probabilities of crossover and mutation. The mutation and crossover rates change according to generations and also vary between individuals. Large numbers of tasks are randomly generated to simulate various scales of task scheduling problem in Cloud environment. Based on the instance types of Amazon EC2, we implemented virtual machines with different computing capacity on CloudSim. We compared the performance of the adaptive incremental GA with that of Standard GA, Min-Min, Max-Min , Simulated Annealing and Artificial Bee Colony Algorithm in finding the optimal scheme. Experimental results show that the proposed algorithm can achieve feasible solutions which have acceptable makespan with less computation time.

  13. Dual-Task Walking in Challenging Environments in People with Stroke: Cognitive-Motor Interference and Task Prioritization

    Directory of Open Access Journals (Sweden)

    Celine Timmermans

    2018-01-01

    Full Text Available Cognitive-motor interference may contribute to the risk of falling in people with stroke, as may be the associated phenomenon of inappropriate task prioritization. Examining dual-task walking could provide valuable insights as to how to best evaluate and treat walking in people with stroke. This study aimed to examine the effect of different walking environments on cognitive-motor interference and task prioritization in dual-task walking in people with stroke. Using a repeated-measures design, cognitive-motor interference and task prioritization were assessed in 30 stroke survivors, while walking in a plain environment and in two challenging environments that were enriched with either stationary physical context or suddenly appearing projector-augmented context. All three walking environment conditions were performed with and without a concurrent serial-3 subtraction task. We found stronger cognitive-motor interference for the two challenging environments than for the plain walking environment. Cognitive-motor interference did not differ between challenging walking environments, but task prioritization did: motor performance was prioritized more in the environment with physical context than in the environment with projector-augmented context and vice versa for cognitive-task performance. In conclusion, walking environment strongly influenced cognitive-motor interference and task prioritization during dual-task walking in people with stroke.

  14. 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.

  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. Molecular detection of Mycobacterium ulcerans in the environment and its relationship with Buruli ulcer occurrence in Zio and Yoto districts of maritime region in Togo.

    Science.gov (United States)

    Maman, Issaka; Tchacondo, Tchadjobo; Kere, Abiba Banla; Beissner, Marcus; Badziklou, Kossi; Tedihou, Ekanao; Nyaku, Edith; Amekuse, Komi; Wiedemann, Franz Xaver; Karou, Damintoti Simplice; Bretzel, Gisela

    2018-05-01

    Buruli Ulcer (BU) is a neglected tropical skin infection caused by Mycobacterium ulcerans. Residence near aquatic areas has been identified as an important source of transmission of M. ulcerans with increased risk of contracting Buruli ulcer. However, the reservoir and the mode of transmission are not yet well known. The aim of this study was to identify the presence of M. ulcerans in the environment and its relationship with Buruli ulcer occurrence in Zio and Yoto districts of the maritime region in south Togo. A total of 219 environmental samples including soil (n = 119), water (n = 65), biofilms/plants (n = 29) and animals' feces (n = 6) were collected in 17 villages of Zio and Yoto districts of the maritime region in Togo. DNA of M. ulcerans including IS2404 and IS2606 insertions sequences and mycolactone ketoreductase-B gene (KR-B) was detected using real time PCR amplification (qPCR) technique. In parallel, clinical samples of patients were tested to establish a comparison of the genetic profile of M. ulcerans between the two types of samples. A calibration curve was generated for IS2404 from a synthetic gene of M. ulcerans Transposase pMUM001, the plasmid of virulence. In the absence of inhibition of the qPCR, 6/219 (2.7%) samples were tested positive for M. ulcerans DNA containing three sequences (IS2404/IS2606/KR-B). Positive samples of M. ulcerans were consisting of biofilms/plants (3/29; 10.3%), water (1/65; 1.7%) and soil (2/119; 1.5%). Comparative analysis between DNA detected in environmental and clinical samples from BU patients showed the same genetic profile of M. ulcerans in the same environment. All these samples were collected in the environment of Haho and Zio rivers in the maritime region. This study confirms the presence of M. ulcerans in the environment of the Zio and Yoto districts of the maritime region of Togo. This may explain partially, the high rates of Buruli ulcer patients in this region. Also, water, plants and soil along the rivers

  17. 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

  18. 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.

  19. 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.

  20. The Effects of Study Tasks in a Computer-Based Chemistry Learning Environment

    Science.gov (United States)

    Urhahne, Detlef; Nick, Sabine; Poepping, Anna Christin; Schulz , Sarah Jayne

    2013-01-01

    The present study examines the effects of different study tasks on the acquisition of knowledge about acids and bases in a computer-based learning environment. Three different task formats were selected to create three treatment conditions: learning with gap-fill and matching tasks, learning with multiple-choice tasks, and learning only from text…

  1. Raw materials and environment - tasks in the nineties

    International Nuclear Information System (INIS)

    Fritz, W.; Ziegler, A.

    1994-01-01

    The mining of coal has long been characterised by the conflict between nature and civilisation. The mining industry must face up to this conflict and tackle the associated problems courageously. These problems are, of course, always encountered in different forms. Their solution depends on the expectations of the disputants in settlement of the conflict, but also on the technical and economic possibilities in each individual case. Hence control or in this case management of the environment is required. In the best case this leads to a consensus with regard to the solution and consequently to acceptance. However, the parties concerned often attempt to enforce their own concepts of a solution to the problem. The feeling for a joint obligation to solve such a basic problem is often lost. Fairness - a classical cardinal virtue required for the settlement - is increasingly less evident. The mining industry may deplore this situation. However, it must continuously undertake the responsibility to strengthen the feeling for common interest and fairness, wherever it participates in the solution of the problems posed by the conflict between nature and civilisation in its work with coal. This task is the concern of the mining industry today and will continue to be so in future. (orig.)

  2. Task-dependent cold stress during expeditions in Antarctic environments.

    Science.gov (United States)

    Morris, Drew M; Pilcher, June J; Powell, Robert B

    2017-01-01

    This study seeks to understand the degree of body cooling, cold perception and physical discomfort during Antarctic tour excursions. Eight experienced expedition leaders across three Antarctic cruise voyages were monitored during occupational tasks: kayaking, snorkelling and zodiac outings. Subjective cold perception and discomfort were recorded using a thermal comfort assessment and skin temperature was recorded using a portable data logger. Indoor cabin temperature and outdoor temperature with wind velocity were used as measures of environmental stress. Physical activity level and clothing insulation were estimated using previous literature. Tour leaders experienced a 6°C (2°C wind chill) environment for an average of 6 hours each day. Leaders involved in kayaking reported feeling colder and more uncomfortable than other leaders, but zodiac leaders showed greater skin temperature cooling. Occupational experience did not predict body cooling or cold stress perception. These findings indicate that occupational cold stress varies by activity and measurement methodology. The current study effectively used objective and subjective measures of cold-stress to identify factors which can contribute to risk in the Antarctic tourism industry. Results suggest that the type of activity may moderate risk of hypothermia, but not discomfort, potentially putting individuals at risk for cognitive related mistakes and cold injuries.

  3. Sensor Architecture and Task Classification for Agricultural Vehicles and Environments

    Directory of Open Access Journals (Sweden)

    Francisco Rovira-Más

    2010-12-01

    Full Text Available The long time wish of endowing agricultural vehicles with an increasing degree of autonomy is becoming a reality thanks to two crucial facts: the broad diffusion of global positioning satellite systems and the inexorable progress of computers and electronics. Agricultural vehicles are currently the only self-propelled ground machines commonly integrating commercial automatic navigation systems. Farm equipment manufacturers and satellite-based navigation system providers, in a joint effort, have pushed this technology to unprecedented heights; yet there are many unresolved issues and an unlimited potential still to uncover. The complexity inherent to intelligent vehicles is rooted in the selection and coordination of the optimum sensors, the computer reasoning techniques to process the acquired data, and the resulting control strategies for automatic actuators. The advantageous design of the network of onboard sensors is necessary for the future deployment of advanced agricultural vehicles. This article analyzes a variety of typical environments and situations encountered in agricultural fields, and proposes a sensor architecture especially adapted to cope with them. The strategy proposed groups sensors into four specific subsystems: global localization, feedback control and vehicle pose, non-visual monitoring, and local perception. The designed architecture responds to vital vehicle tasks classified within three layers devoted to safety, operative information, and automatic actuation. The success of this architecture, implemented and tested in various agricultural vehicles over the last decade, rests on its capacity to integrate redundancy and incorporate new technologies in a practical way.

  4. Maritime environmental penal law. International and German legislation

    International Nuclear Information System (INIS)

    Eller, Jan Frederik

    2017-01-01

    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.

  5. 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.

  6. 75 FR 5241 - Maritime Communications

    Science.gov (United States)

    2010-02-02

    ...] Maritime Communications AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: In this... 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...

  7. Information Services of Maritime Industry

    Science.gov (United States)

    Palazov, Atanas; Stefanov, Asen

    2015-04-01

    them in real-time to the users in applying the latest advances in instrument-building, information and communication technologies. In the Bulgarian sector of the Black Sea have been developed and putted in operation several systems for the collection and presentation of marine data for the needs of different users. The systems are located both along the coast and in the open sea and the information they provide is used by both the maritime industry and the widest range of users. Combining them into a national operational marine observational system is a task that has to be solved, and that will allow to get a more complete and comprehensive picture of the state of the marine environment in the Bulgarian sector of the Black Sea. Such a system will help to support the activities of the offshore industry.

  8. Adaptive Cost-Based Task Scheduling in Cloud Environment

    Directory of Open Access Journals (Sweden)

    Mohammed A. S. Mosleh

    2016-01-01

    Full Text Available Task execution in cloud computing requires obtaining stored data from remote data centers. Though this storage process reduces the memory constraints of the user’s computer, the time deadline is a serious concern. In this paper, Adaptive Cost-based Task Scheduling (ACTS is proposed to provide data access to the virtual machines (VMs within the deadline without increasing the cost. ACTS considers the data access completion time for selecting the cost effective path to access the data. To allocate data access paths, the data access completion time is computed by considering the mean and variance of the network service time and the arrival rate of network input/output requests. Then the task priority is assigned to the removed tasks based data access time. Finally, the cost of data paths are analyzed and allocated based on the task priority. Minimum cost path is allocated to the low priority tasks and fast access path are allocated to high priority tasks as to meet the time deadline. Thus efficient task scheduling can be achieved by using ACTS. The experimental results conducted in terms of execution time, computation cost, communication cost, bandwidth, and CPU utilization prove that the proposed algorithm provides better performance than the state-of-the-art methods.

  9. 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 ...

  10. Addressing grammar in the interaction task-based learning environment

    Directory of Open Access Journals (Sweden)

    Davis Brent M.

    2017-01-01

    Full Text Available One of the major problems in language teaching is developing grammatical accuracy. This paper proposes that using error correction based on a functional grammar in a task-based learning approach may be a suitable solution. Towards this end an emic (using categories intrinsic to the language functional grammar of the verb phrase is proposed and a description of how this fits into the focus on form component of task-based learning is provided.

  11. Maritime adaptive optics beam control

    OpenAIRE

    Corley, Melissa S.

    2010-01-01

    The Navy is interested in developing systems for horizontal, near ocean surface, high-energy laser propagation through the atmosphere. Laser propagation in the maritime environment requires adaptive optics control of aberrations caused by atmospheric distortion. In this research, a multichannel transverse adaptive filter is formulated in Matlab's Simulink environment and compared to a complex lattice filter that has previously been implemented in large system simulations. The adaptive fil...

  12. Load Balancing in Cloud Computing Environment Using Improved Weighted Round Robin Algorithm for Nonpreemptive Dependent Tasks

    OpenAIRE

    Devi, D. Chitra; Uthariaraj, V. Rhymend

    2016-01-01

    Cloud computing uses the concepts of scheduling and load balancing to migrate tasks to underutilized VMs for effectively sharing the resources. The scheduling of the nonpreemptive tasks in the cloud computing environment is an irrecoverable restraint and hence it has to be assigned to the most appropriate VMs at the initial placement itself. Practically, the arrived jobs consist of multiple interdependent tasks and they may execute the independent tasks in multiple VMs or in the same VM’s mul...

  13. Collaborative Tasks in Wiki-Based Environment in EFL Learning

    Science.gov (United States)

    Zou, Bin; Wang, Dongshuo; Xing, Minjie

    2016-01-01

    Wikis provide users with opportunities to post and edit messages to collaborate in the language learning process. Many studies have offered findings to show positive impact of Wiki-based language learning for learners. This paper explores the effect of collaborative task in error correction for English as a Foreign Language learning in an online…

  14. Adaptive Algorithm For Identification Of The Environment Parameters In Contact Tasks

    International Nuclear Information System (INIS)

    Tuneski, Atanasko; Babunski, Darko

    2003-01-01

    An adaptive algorithm for identification of the unknown parameters of the dynamic environment in contact tasks is proposed in this paper using the augmented least square estimation method. An approximate environment digital simulator for the continuous environment dynamics is derived, i.e. a discrete transfer function which has the approximately the same characteristics as the continuous environment dynamics is found. For solving this task a method named hold equivalence is used. The general model of the environment dynamics is given and the case when the environment dynamics is represented by second order models with parameter uncertainties is considered. (Author)

  15. Adaptive Algorithm For Identification Of The Environment Parameters In Contact Tasks

    Energy Technology Data Exchange (ETDEWEB)

    Tuneski, Atanasko; Babunski, Darko [Faculty of Mechanical Engineering, ' St. Cyril and Methodius' University, Skopje (Macedonia, The Former Yugoslav Republic of)

    2003-07-01

    An adaptive algorithm for identification of the unknown parameters of the dynamic environment in contact tasks is proposed in this paper using the augmented least square estimation method. An approximate environment digital simulator for the continuous environment dynamics is derived, i.e. a discrete transfer function which has the approximately the same characteristics as the continuous environment dynamics is found. For solving this task a method named hold equivalence is used. The general model of the environment dynamics is given and the case when the environment dynamics is represented by second order models with parameter uncertainties is considered. (Author)

  16. 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...

  17. Solution of tasks concerning protection of underground waters and environment

    International Nuclear Information System (INIS)

    Dubinchuk, V.T.; Polyakov, V.A.

    1988-01-01

    Use of environment isotopes and indicators in solving problems concerning protection of underground waters and environment is discussed. The applied methods permit to study dynamics of underground waters and to estimate risk of their contamination; to follow the surface and underground waters interrelations using data on infiltration recharge estimation etc. Complex nuclear-geophysical and isotope studies may be applied to detect hindered water exchange zones where liquid industrial waste disposals could be placed with minimum damage to environment. 48 refs.; 74 figs.; 22 tabs

  18. Investigations of active interrogation techniques to detect special nuclear material in maritime environments: Standoff interrogation of small- and medium-sized cargo ships

    International Nuclear Information System (INIS)

    Miller, Thomas M.; Patton, Bruce W.; Grogan, Brandon R.; Henkel, James J.; Murphy, Brian D.; Johnson, Jeffrey O.; Mihalczo, John T.

    2013-01-01

    In this work, several active interrogation (AI) sources are evaluated to determine their usefulness in detecting the presence of special nuclear material (SNM) in fishing trawlers, small cargo transport ships, and luxury yachts at large standoff distances from the AI source and detector. This evaluation is performed via computational analysis applying Monte Carlo methods with advanced variance reduction techniques. The goal is to determine the AI source strength required to detect the presence of SNM. The general conclusion of this study is that AI is not reliable when SNM is heavily shielded and not tightly coupled geometrically with the source and detector, to the point that AI should not be considered a via interrogation option in these scenarios. More specifically, when SNM is shielded by hydrogenous material large AI source strengths are required if detection is based on neutrons, which is not surprising. However, if the SNM is shielded by high-Z material the required AI source strengths are not significantly different if detection is based on neutrons or photons, which is somewhat surprising. Furthermore, some of the required AI source strengths that were calculated are very large. These results coupled with the realities of two ships moving independently at sea and other assumptions made during this analysis make the use of standoff AI in the maritime environment impractical

  19. Investigations of active interrogation techniques to detect special nuclear material in maritime environments: Standoff interrogation of small- and medium-sized cargo ships

    Energy Technology Data Exchange (ETDEWEB)

    Miller, Thomas M., E-mail: millertm@ornl.gov; Patton, Bruce W.; Grogan, Brandon R.; Henkel, James J.; Murphy, Brian D.; Johnson, Jeffrey O.; Mihalczo, John T.

    2013-12-01

    In this work, several active interrogation (AI) sources are evaluated to determine their usefulness in detecting the presence of special nuclear material (SNM) in fishing trawlers, small cargo transport ships, and luxury yachts at large standoff distances from the AI source and detector. This evaluation is performed via computational analysis applying Monte Carlo methods with advanced variance reduction techniques. The goal is to determine the AI source strength required to detect the presence of SNM. The general conclusion of this study is that AI is not reliable when SNM is heavily shielded and not tightly coupled geometrically with the source and detector, to the point that AI should not be considered a via interrogation option in these scenarios. More specifically, when SNM is shielded by hydrogenous material large AI source strengths are required if detection is based on neutrons, which is not surprising. However, if the SNM is shielded by high-Z material the required AI source strengths are not significantly different if detection is based on neutrons or photons, which is somewhat surprising. Furthermore, some of the required AI source strengths that were calculated are very large. These results coupled with the realities of two ships moving independently at sea and other assumptions made during this analysis make the use of standoff AI in the maritime environment impractical.

  20. Mobile Sensor Networks for Inspection Tasks in Harsh Industrial Environments

    NARCIS (Netherlands)

    Mulder, Jacob; Wang, Xinyu; Ferwerda, Franke; Cao, Ming

    Recent advances in sensor technology have enabled the fast development of mobile sensor networks operating in various unknown and sometimes hazardous environments. In this paper, we introduce one integrative approach to design, analyze and test distributed control algorithms to coordinate a network

  1. Task based design of a digital work environment (DWE for an academic community

    Directory of Open Access Journals (Sweden)

    Narayanan Meyyappan

    2002-01-01

    Full Text Available Task based design is considered one of the effective ways of designing functional software. It is generally accepted that tasks play an important role in system and user interface design. Identifying the user's tasks enables the designer to construct user interfaces reflecting the tasks' properties, including efficient usage patterns, easy-to-use interaction sequences, and powerful assistance features. In this paper, we present a prototype of a Digital Work Environment (DWE to support a task-oriented design to information access in a typical community of academic users. The resources in DWE are organized according to specific tasks performed by the research students and staff in the Division of Information Studies of Nanyang Technological University, Singapore. The tasks and resources were elicited based on the needs of faculty and students through interviews and focus groups. Examples of these tasks include preparation of a new course outline, setting of examination papers, preparation of reading lists and assignments, conducting literature reviews and writing dissertations. This paper discusses the problems of digital library users in an academic environment, highlights task oriented projects and focuses on the task of preparing and writing a Master dissertation. It highlights the importance of task based design in assisting and helping students and instructors from the time of selecting the research project to the time of submitting the final bound copies of the dissertation.

  2. Task-focused behavior mediates the associations between supportive interpersonal environments and students' academic performance.

    Science.gov (United States)

    Kiuru, Noona; Pakarinen, Eija; Vasalampi, Kati; Silinskas, Gintautas; Aunola, Kaisa; Poikkeus, Anna-Maija; Metsäpelto, Riitta-Leena; Lerkkanen, Marja-Kristiina; Nurmi, Jari-Erik

    2014-04-01

    In the longitudinal study presented here, we tested the theoretical assumption that children's task-focused behavior in learning situations mediates the associations between supportive interpersonal environments and academic performance. The sample consisted of 2,137 Finnish-speaking children. Data on supportive interpersonal environments (characterized by authoritative parenting, positive teacher affect toward the child, and peer acceptance) were gathered in Grade 1. The children's task-focused behavior was measured in Grades 2 and 3, and academic performance was measured in Grades 1 and 4. The results supported our assumption by showing that all three supportive environments were positively associated with children's subsequent academic performance via increased task-focused behavior in learning situations. These findings suggest that students' academic performance can be promoted by increasing the support they receive from peers, parents, and teachers because such increased support leads to better task focus in learning tasks.

  3. Communication as a management task: Energy and environment. Lectures

    International Nuclear Information System (INIS)

    Jung. H.

    1993-01-01

    The energy utilities are working in an area of the community confronted by critical questions. The motto fo the 2nd IZE Communications Day proceedings was: 'Energy and the Environment - Public relations in the area of tension between Ecology and Economy'. It was a meeting of domestic and international business directors, politicians, public-relations specialists and journalists. The main concern of the lectures, discussions, workshops and conversation topics was how communication with the medium could be improved, thus enhancing their image in the press, on the radio and television. Top editors from the leading newspapers have strated and discussed their policy. A workshop case-study showed how readily the credibility and acceptance of the energy and environment sector could be improved through longterm, honest, dialogue-oriented and professional public relations work. (orig./UA) [de

  4. Individual Differences in Cognitive and Noncognitive Abilities and Team Performance in Dynamic Task Environments

    National Research Council Canada - National Science Library

    Doane, Stephanie

    2004-01-01

    The specific goal of this research was to examine the role of individual differences in cognitive and non-cognitive abilities on individual and team performance in a real-time dynamic team-task environment...

  5. An Investigation of Factors Affecting Multi-Task Performance in an Immersive Environment

    National Research Council Canada - National Science Library

    Branscome, Teresa A; Grynovicki, Jock O

    2007-01-01

    This report presents the results of a study included in a series of investigations designed to increase fundamental knowledge and understanding of the factors affecting multi-task performance in a military environment...

  6. 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…

  7. Merging assistance function with task distribution model to enhance user performance in collaborative virtual environment

    International Nuclear Information System (INIS)

    Khalid, S.; Alam, A.

    2016-01-01

    Collaborative Virtual Environments (CVEs) falls under Virtual Reality (VR) where two or more users manipulate objects collaboratively. In this paper we have made some experiments to make assembly from constituents parts scattered in Virtual Environment (VE) based on task distribution model using assistance functions for checking and enhancing user performance. The CVEs subjects setting on distinct connected machines via local area network. In this perspective, we consider the effects of assistance function with oral communication on collaboration, co-presence and users performance. Twenty subjects performed collaboratively an assembly task on static and dynamic based task distribution. We examine the degree of influence of assistance function with oral communications on user's performance based on task distribution model. The results show that assistance functions with oral communication based on task distribution model not only increase user performance but also enhance the sense of copresence and awareness. (author)

  8. Performance comparison of heuristic algorithms for task scheduling in IaaS cloud computing environment

    Science.gov (United States)

    Madni, Syed Hamid Hussain; Abd Latiff, Muhammad Shafie; Abdullahi, Mohammed; Usman, Mohammed Joda

    2017-01-01

    Cloud computing infrastructure is suitable for meeting computational needs of large task sizes. Optimal scheduling of tasks in cloud computing environment has been proved to be an NP-complete problem, hence the need for the application of heuristic methods. Several heuristic algorithms have been developed and used in addressing this problem, but choosing the appropriate algorithm for solving task assignment problem of a particular nature is difficult since the methods are developed under different assumptions. Therefore, six rule based heuristic algorithms are implemented and used to schedule autonomous tasks in homogeneous and heterogeneous environments with the aim of comparing their performance in terms of cost, degree of imbalance, makespan and throughput. First Come First Serve (FCFS), Minimum Completion Time (MCT), Minimum Execution Time (MET), Max-min, Min-min and Sufferage are the heuristic algorithms considered for the performance comparison and analysis of task scheduling in cloud computing. PMID:28467505

  9. Performance comparison of heuristic algorithms for task scheduling in IaaS cloud computing environment.

    Science.gov (United States)

    Madni, Syed Hamid Hussain; Abd Latiff, Muhammad Shafie; Abdullahi, Mohammed; Abdulhamid, Shafi'i Muhammad; Usman, Mohammed Joda

    2017-01-01

    Cloud computing infrastructure is suitable for meeting computational needs of large task sizes. Optimal scheduling of tasks in cloud computing environment has been proved to be an NP-complete problem, hence the need for the application of heuristic methods. Several heuristic algorithms have been developed and used in addressing this problem, but choosing the appropriate algorithm for solving task assignment problem of a particular nature is difficult since the methods are developed under different assumptions. Therefore, six rule based heuristic algorithms are implemented and used to schedule autonomous tasks in homogeneous and heterogeneous environments with the aim of comparing their performance in terms of cost, degree of imbalance, makespan and throughput. First Come First Serve (FCFS), Minimum Completion Time (MCT), Minimum Execution Time (MET), Max-min, Min-min and Sufferage are the heuristic algorithms considered for the performance comparison and analysis of task scheduling in cloud computing.

  10. 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.

  11. Development of Critical Thinking Skills through Writing Tasks: Challenges Facing Maritime English Students at Aqaba College, AlBalqa Applied University, Jordan

    Science.gov (United States)

    Alidmat, Ali Odeh Hammoud; Ayassrah, Mohamed Ayed

    2017-01-01

    Teaching English for Special Purposes (ESP) in a context where English is taught as a Foreign Language (EFL) is no easy task. There is in fact extensive research reporting on challenges facing both teacher and student in the Foreign Language classroom where language skills must be learnt outside their usual context. Even more challenging is…

  12. 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.

  13. A Neural Network Model to Learn Multiple Tasks under Dynamic Environments

    Science.gov (United States)

    Tsumori, Kenji; Ozawa, Seiichi

    When environments are dynamically changed for agents, the knowledge acquired in an environment might be useless in future. In such dynamic environments, agents should be able to not only acquire new knowledge but also modify old knowledge in learning. However, modifying all knowledge acquired before is not efficient because the knowledge once acquired may be useful again when similar environment reappears and some knowledge can be shared among different environments. To learn efficiently in such environments, we propose a neural network model that consists of the following modules: resource allocating network, long-term & short-term memory, and environment change detector. We evaluate the model under a class of dynamic environments where multiple function approximation tasks are sequentially given. The experimental results demonstrate that the proposed model possesses stable incremental learning, accurate environmental change detection, proper association and recall of old knowledge, and efficient knowledge transfer.

  14. 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....

  15. Combining environment-driven adaptation and task-driven optimisation in evolutionary robotics.

    Science.gov (United States)

    Haasdijk, Evert; Bredeche, Nicolas; Eiben, A E

    2014-01-01

    Embodied evolutionary robotics is a sub-field of evolutionary robotics that employs evolutionary algorithms on the robotic hardware itself, during the operational period, i.e., in an on-line fashion. This enables robotic systems that continuously adapt, and are therefore capable of (re-)adjusting themselves to previously unknown or dynamically changing conditions autonomously, without human oversight. This paper addresses one of the major challenges that such systems face, viz. that the robots must satisfy two sets of requirements. Firstly, they must continue to operate reliably in their environment (viability), and secondly they must competently perform user-specified tasks (usefulness). The solution we propose exploits the fact that evolutionary methods have two basic selection mechanisms-survivor selection and parent selection. This allows evolution to tackle the two sets of requirements separately: survivor selection is driven by the environment and parent selection is based on task-performance. This idea is elaborated in the Multi-Objective aNd open-Ended Evolution (monee) framework, which we experimentally validate. Experiments with robotic swarms of 100 simulated e-pucks show that monee does indeed promote task-driven behaviour without compromising environmental adaptation. We also investigate an extension of the parent selection process with a 'market mechanism' that can ensure equitable distribution of effort over multiple tasks, a particularly pressing issue if the environment promotes specialisation in single tasks.

  16. Combining environment-driven adaptation and task-driven optimisation in evolutionary robotics.

    Directory of Open Access Journals (Sweden)

    Evert Haasdijk

    Full Text Available Embodied evolutionary robotics is a sub-field of evolutionary robotics that employs evolutionary algorithms on the robotic hardware itself, during the operational period, i.e., in an on-line fashion. This enables robotic systems that continuously adapt, and are therefore capable of (re-adjusting themselves to previously unknown or dynamically changing conditions autonomously, without human oversight. This paper addresses one of the major challenges that such systems face, viz. that the robots must satisfy two sets of requirements. Firstly, they must continue to operate reliably in their environment (viability, and secondly they must competently perform user-specified tasks (usefulness. The solution we propose exploits the fact that evolutionary methods have two basic selection mechanisms-survivor selection and parent selection. This allows evolution to tackle the two sets of requirements separately: survivor selection is driven by the environment and parent selection is based on task-performance. This idea is elaborated in the Multi-Objective aNd open-Ended Evolution (monee framework, which we experimentally validate. Experiments with robotic swarms of 100 simulated e-pucks show that monee does indeed promote task-driven behaviour without compromising environmental adaptation. We also investigate an extension of the parent selection process with a 'market mechanism' that can ensure equitable distribution of effort over multiple tasks, a particularly pressing issue if the environment promotes specialisation in single tasks.

  17. Cognitive evaluation by tasks in a virtual reality environment in multiple sclerosis.

    Science.gov (United States)

    Lamargue-Hamel, Delphine; Deloire, Mathilde; Saubusse, Aurore; Ruet, Aurélie; Taillard, Jacques; Philip, Pierre; Brochet, Bruno

    2015-12-15

    The assessment of cognitive impairment in multiple sclerosis (MS) requires large neuropsychological batteries that assess numerous domains. The relevance of these assessments to daily cognitive functioning is not well established. Cognitive ecological evaluation has not been frequently studied in MS. The aim of this study was to determine the interest of cognitive evaluation in a virtual reality environment in a sample of persons with MS with cognitive deficits. Thirty persons with MS with at least moderate cognitive impairment were assessed with two ecological evaluations, an in-house developed task in a virtual reality environment (Urban DailyCog®) and a divided attention task in a driving simulator. Classical neuropsychological testing was also used. Fifty-two percent of the persons with MS failed the driving simulator task and 80% failed the Urban DailyCog®. Virtual reality assessments are promising in identifying cognitive impairment in MS. Copyright © 2015 Elsevier B.V. All rights reserved.

  18. Learning to Manage Intergroup Dynamics in Changing Task Environments: An Experiential Exercise

    Science.gov (United States)

    Hunsaker, Phillip L.

    2004-01-01

    This article describes an exercise that allows participants to experience the challenges of managing intergroup behavior as an organization's task environment grows and becomes more complex. The article begins with a brief review of models and concepts relating to intergroup dynamics, intergroup conflict, and interventions for effectively managing…

  19. A Software Environment for an Adaptive Human-Aware Software Agent Supporting Attention-Demanding Tasks

    NARCIS (Netherlands)

    Bosse, T.; Memon, Z.A.; Oorburg, R.; Umair, M.; Treur, J.; de Vos, M.

    2011-01-01

    This paper presents a software environment providing human-aware ambient support for a human performing a task that demands substantial amounts of attention. The agent obtains human attention-awareness in an adaptive manner by use of a dynamical model of human attention, gaze sensoring by an

  20. Load Balancing in Cloud Computing Environment Using Improved Weighted Round Robin Algorithm for Nonpreemptive Dependent Tasks.

    Science.gov (United States)

    Devi, D Chitra; Uthariaraj, V Rhymend

    2016-01-01

    Cloud computing uses the concepts of scheduling and load balancing to migrate tasks to underutilized VMs for effectively sharing the resources. The scheduling of the nonpreemptive tasks in the cloud computing environment is an irrecoverable restraint and hence it has to be assigned to the most appropriate VMs at the initial placement itself. Practically, the arrived jobs consist of multiple interdependent tasks and they may execute the independent tasks in multiple VMs or in the same VM's multiple cores. Also, the jobs arrive during the run time of the server in varying random intervals under various load conditions. The participating heterogeneous resources are managed by allocating the tasks to appropriate resources by static or dynamic scheduling to make the cloud computing more efficient and thus it improves the user satisfaction. Objective of this work is to introduce and evaluate the proposed scheduling and load balancing algorithm by considering the capabilities of each virtual machine (VM), the task length of each requested job, and the interdependency of multiple tasks. Performance of the proposed algorithm is studied by comparing with the existing methods.

  1. Load Balancing in Cloud Computing Environment Using Improved Weighted Round Robin Algorithm for Nonpreemptive Dependent Tasks

    Directory of Open Access Journals (Sweden)

    D. Chitra Devi

    2016-01-01

    Full Text Available Cloud computing uses the concepts of scheduling and load balancing to migrate tasks to underutilized VMs for effectively sharing the resources. The scheduling of the nonpreemptive tasks in the cloud computing environment is an irrecoverable restraint and hence it has to be assigned to the most appropriate VMs at the initial placement itself. Practically, the arrived jobs consist of multiple interdependent tasks and they may execute the independent tasks in multiple VMs or in the same VM’s multiple cores. Also, the jobs arrive during the run time of the server in varying random intervals under various load conditions. The participating heterogeneous resources are managed by allocating the tasks to appropriate resources by static or dynamic scheduling to make the cloud computing more efficient and thus it improves the user satisfaction. Objective of this work is to introduce and evaluate the proposed scheduling and load balancing algorithm by considering the capabilities of each virtual machine (VM, the task length of each requested job, and the interdependency of multiple tasks. Performance of the proposed algorithm is studied by comparing with the existing methods.

  2. 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...

  3. Maritime zones delimitation - Problems and solutions

    Science.gov (United States)

    Kastrisios, Christos; Tsoulos, Lysandros

    2018-05-01

    The delimitation of maritime zones and boundaries foreseen by the United Nations Convention on the Law of the Sea (UNCLOS) is a factor of economic growth, effective management of the coastal and ocean environment and the cornerstone for maritime spatial planning. Maritime zones and boundaries form the outermost limits of coastal states and their accurate delineation and cartographic portrayal is a matter of national priority. Although UNCLOS is a legal document, its implementation -at first place- is purely technical and requires -amongst others- theoretical and applied background on Geodesy, Cartography and Geographic Information Systems (GIS) for those involved. This paper provides a brief historical background of the evolution of the UNCLOS, presents the various concepts of the Convention and identifies the problems inherent in the maritime delimitation process. Furthermore, it presents solutions that will facilitate the cartographer's work in order to achieve unquestionable results. Through the paper it becomes evident that the role of the cartographer and the GIS expert is critical for the successful implementation of maritime delimitation.

  4. 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...

  5. Robosapien Robot used to Model Humanoid Interaction to Perform tasks in Dangerous Manufacturing Environments

    International Nuclear Information System (INIS)

    Stopforth, R; Bright, G

    2014-01-01

    Humans are involved with accidents in manufacturing environments. A possibility to prevent humans from these scenarios is, to introduce humanoid robots within these industrial areas. This paper investigates the control scenario and environments required at a small scale level, with the use of the Robosapien robot. The Robosapien robot is modified to control it with a task of removing a cylinder and inserting it into a hole. Analysis is performed on the performance of the Robosapien robot and relating it with that of a humanoid robot. A discussion with suggestions is concluded with the efficiency and profitability that would need to be considered, for having a humanoid robot within the manufacturing environment

  6. 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

  7. Ancient Maritime Fish-Traps of Brittany (France): A Reappraisal of the Relationship Between Human and Coastal Environment During the Holocene

    Science.gov (United States)

    Langouët, Loïc; Daire, Marie-Yvane

    2009-12-01

    The present-day maritime landscape of Western France forms the geographical framework for a recent research project dedicated to the archaeological study of ancient fish-traps, combining regional-scale and site-scale investigations. Based on the compilation and exploitation of a large unpublished dataset including more than 550 sites, a preliminary synthetic study allows us to present some examples of synchronic and thematic approaches, and propose a morphological classification of the weirs. These encouraging first results open up new perspectives on fish-trap chronology closely linked to wider studies on Holocene sea-level changes.

  8. Context-based online policy instantiation for multiple tasks and changing environments

    CSIR Research Space (South Africa)

    Rosman, Benjamin S

    2014-01-01

    Full Text Available in environments with significant structural uncertainty, the mathematically optimal solution may be to adopt coarse strategies that are better adapted to a family of tasks [8]. An example within the robotics literature of a multi-task encoding that addresses some.... A. Rizzi, and D. E. Koditschek, “Sequential Compo- sition of Dynamically Dexterous Robot Behaviors,” The International Journal of Robotics Research, vol. 18, no. 6, pp. 534–555, June 1999. [10] B. S. Rosman and S. Ramamoorthy, “A Multitask...

  9. Maritime energy and security: Synergistic maximization or necessary tradeoffs?

    International Nuclear Information System (INIS)

    Nyman, Elizabeth

    2017-01-01

    Offshore energy is big business. The traditional source of maritime energy, offshore petroleum and gas, has been on the rise since a reliable method of extraction was discovered in the mid-20th century. Lately, it has been joined by offshore wind and tidal power as alternative “green” sources of maritime energy. Yet all of this has implications for maritime environmental regimes as well, as maritime energy extraction/generation can have a negative effect on the ocean environment. This paper considers two major questions surrounding maritime energy and environmental concerns. First, how and why do these two concerns, maritime energy and environmental protection, play against each other? Second, how can states both secure their energy and environmental securities in the maritime domain? Maximizing maritime energy output necessitates some environmental costs and vice versa, but these costs vary with the type of offshore energy technology used and with the extent to which states are willing to expend effort to protect both environmental and energy security. - Highlights: • Security is a complicated concept with several facets including energy and environmental issues. • Offshore energy contributes to energy supply but can have environmental and monitoring costs. • Understanding the contribution of offshore energy to security depends on which security facet is deemed most important.

  10. Maritime Cyber Security University Research

    Science.gov (United States)

    2016-05-01

    i Classification | CG-926 RDC | author | audience | month year Maritime Cyber Security University Research Phase I - Final Report...Distribution Statement A: Approved for public release; distribution is unlimited. May 2016 Report No. CG-D-06-16 Maritime Cyber Security...Director United States Coast Guard Research & Development Center 1 Chelsea Street New London, CT 06320 Maritime Cyber Security University

  11. 75 FR 10692 - Maritime Communications

    Science.gov (United States)

    2010-03-09

    ...] 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..., 2010 (75 FR 5241) to ensure that its rules governing the Maritime Radio Services continue to promote...

  12. Better decision making in complex, dynamic tasks training with human-facilitated interactive learning environments

    CERN Document Server

    Qudrat-Ullah, Hassan

    2015-01-01

    This book describes interactive learning environments (ILEs) and their underlying concepts. It explains how ILEs can be used to improve the decision-making process and how these improvements can be empirically verified. The objective of this book is to enhance our understanding of and to gain insights into the process by which human facilitated ILEs are effectively designed and used in improving users’ decision making in complex, dynamic tasks. This book is divided into four major parts. Part I serves as an introduction to the importance and complexity of decision making in dynamic tasks. Part II provides background material, drawing upon relevant literature, for the development of an integrated process model on the effectiveness of human facilitated ILEs in improving decision making in dynamic tasks. Part III focuses on the design, development, and application of FishBankILE in laboratory experiments to gather empirical evidence for the validity of the process model. Finally, part IV presents a comprehensi...

  13. The Planning Task for Teams (PLATT): An environment for research on planning and decision making in teams

    NARCIS (Netherlands)

    Kamphuis, W.; Houttuin, K.

    2007-01-01

    In this report, we introduce a newly developed task environment for experimental team research: the Planning Task for Teams (PLATT). PLATT is a scenario based, computerized, complex planning task for three-person teams. PLATT has been designed to be able to do experimental laboratory research on

  14. Hybrid Symbiotic Organisms Search Optimization Algorithm for Scheduling of Tasks on Cloud Computing Environment.

    Science.gov (United States)

    Abdullahi, Mohammed; Ngadi, Md Asri

    2016-01-01

    Cloud computing has attracted significant attention from research community because of rapid migration rate of Information Technology services to its domain. Advances in virtualization technology has made cloud computing very popular as a result of easier deployment of application services. Tasks are submitted to cloud datacenters to be processed on pay as you go fashion. Task scheduling is one the significant research challenges in cloud computing environment. The current formulation of task scheduling problems has been shown to be NP-complete, hence finding the exact solution especially for large problem sizes is intractable. The heterogeneous and dynamic feature of cloud resources makes optimum task scheduling non-trivial. Therefore, efficient task scheduling algorithms are required for optimum resource utilization. Symbiotic Organisms Search (SOS) has been shown to perform competitively with Particle Swarm Optimization (PSO). The aim of this study is to optimize task scheduling in cloud computing environment based on a proposed Simulated Annealing (SA) based SOS (SASOS) in order to improve the convergence rate and quality of solution of SOS. The SOS algorithm has a strong global exploration capability and uses fewer parameters. The systematic reasoning ability of SA is employed to find better solutions on local solution regions, hence, adding exploration ability to SOS. Also, a fitness function is proposed which takes into account the utilization level of virtual machines (VMs) which reduced makespan and degree of imbalance among VMs. CloudSim toolkit was used to evaluate the efficiency of the proposed method using both synthetic and standard workload. Results of simulation showed that hybrid SOS performs better than SOS in terms of convergence speed, response time, degree of imbalance, and makespan.

  15. Hybrid Symbiotic Organisms Search Optimization Algorithm for Scheduling of Tasks on Cloud Computing Environment.

    Directory of Open Access Journals (Sweden)

    Mohammed Abdullahi

    Full Text Available Cloud computing has attracted significant attention from research community because of rapid migration rate of Information Technology services to its domain. Advances in virtualization technology has made cloud computing very popular as a result of easier deployment of application services. Tasks are submitted to cloud datacenters to be processed on pay as you go fashion. Task scheduling is one the significant research challenges in cloud computing environment. The current formulation of task scheduling problems has been shown to be NP-complete, hence finding the exact solution especially for large problem sizes is intractable. The heterogeneous and dynamic feature of cloud resources makes optimum task scheduling non-trivial. Therefore, efficient task scheduling algorithms are required for optimum resource utilization. Symbiotic Organisms Search (SOS has been shown to perform competitively with Particle Swarm Optimization (PSO. The aim of this study is to optimize task scheduling in cloud computing environment based on a proposed Simulated Annealing (SA based SOS (SASOS in order to improve the convergence rate and quality of solution of SOS. The SOS algorithm has a strong global exploration capability and uses fewer parameters. The systematic reasoning ability of SA is employed to find better solutions on local solution regions, hence, adding exploration ability to SOS. Also, a fitness function is proposed which takes into account the utilization level of virtual machines (VMs which reduced makespan and degree of imbalance among VMs. CloudSim toolkit was used to evaluate the efficiency of the proposed method using both synthetic and standard workload. Results of simulation showed that hybrid SOS performs better than SOS in terms of convergence speed, response time, degree of imbalance, and makespan.

  16. The application of metal cutting technologies in tasks performed in radioactive environments

    International Nuclear Information System (INIS)

    Fogle, R.F.; Younkins, R.M.

    1997-01-01

    The design and use of equipment to perform work in radioactive environments is uniquely challenging. Some tasks require that the equipment be operated by a person wearing a plastic suit or full face respirator and donning several pairs of rubber gloves. Other applications may require that the equipment be remotely controlled. Other important, design considerations include material compatibility, mixed waste issues, tolerance to ionizing radiation, size constraints and weight capacities. As always, there is the ''We need it ASAP'' design criteria. This paper describes four applications where different types of metal cutting technologies were used to successfully perform tasks in radioactive environments. The technologies include a plasma cutting torch, a grinder with an abrasive disk, a hydraulic shear, and a high pressure abrasive water jet cutter

  17. An Investigation of Factors Affecting Multi-Task Performance in an Immersive Environment

    Science.gov (United States)

    2007-12-01

    in Team Sports . Personality and Individual Differences July 1998, 25 (1), 119- 128. Potosky, D. A Field Study of Computer Efficacy Beliefs as an...vacation I like to engage in active sports rather than just lie around. ____ 60. I’ll try anything once. ____ 61. I often feel unsure of myself...heart rate variability ( HRV ). • To identify non-invasive psychological and physiological measures of cognitive readiness in a multi-task environment

  18. Marine and maritime uses

    Science.gov (United States)

    1975-01-01

    Activities related to: (1) understanding, controlling, and using the ocean's biological and physical processes for food and energy production and ship design purposes, and (2) providing navigation, communication, and data transmission technological aids which improve efficiency and enhance safety in maritime operations are disclosed.

  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. Too hot to carry on? Disinclination to persist at a task in a warm office environment.

    Science.gov (United States)

    Syndicus, Marc; Wiese, Bettina S; van Treeck, Christoph

    2018-04-01

    We investigated the effect of an elevated ambient temperature on performance in a persistence task. The task involved the coding of incorrect symbols and participants were free to decide how long to spend performing this task. Applying a between-subject design, we tested 125 students in an office-like environment in one of the three temperature conditions. The comfort condition (Predicted Mean Vote [PMV] = 0.01) featured an average air temperature of 24 °C. The elevated ambient temperature condition was 28 °C (PMV = 1.17). Condition three employed an airstream of approximately 0.8 m/s, intended to compensate for performance decrements at the elevated air temperature (28 °C, PMV = 0.13), according to Fanger's thermal comfort equation. Participants in the warm condition were significantly less persistent compared with participants in the control and compensation conditions. As predicted by the thermal comfort equation, the airstream seemed to compensate for the higher temperature. Participants' persistence in the compensation and comfort conditions did not differ. Practitioner Summary: A laboratory experiment involving a simulated office environment and three ambient temperature conditions (24 °C, 28 °C and 28 °C plus airstream) showed that persistence at a task is significantly impaired at 28 °C. An airstream of 0.8 m/s at 28 °C compensated for the disinclination to persist with the task.

  1. [Mass maritime casualty incidents in German waters: structures and resources].

    Science.gov (United States)

    Castan, J; Paschen, H-R; Wirtz, S; Dörges, V; Wenderoth, S; Peters, J; Blunk, Y; Bielstein, A; Kerner, T

    2012-07-01

    The Central Command for Maritime Emergencies was founded in Germany in 2003 triggered by the fire on board of the cargo ship "Pallas" in 1998. Its mission is to coordinate and direct measures at or above state level in maritime emergency situations in the North Sea and the Baltic Sea. A special task in this case is to provide firefighting and medical care. To face these challenges at sea emergency doctors and firemen have been specially trained. This form of organization provides a concept to counter mass casualty incidents and peril situations at sea. Since the foundation of the Central Command for Maritime Emergencies there have been 5 operations for firefighting units and 4 for medical response teams. Assignments and structure of the Central Command for Maritime Emergencies are unique in Europe.

  2. Chaotic home environment is associated with reduced infant processing speed under high task demands.

    Science.gov (United States)

    Tomalski, Przemysław; Marczuk, Karolina; Pisula, Ewa; Malinowska, Anna; Kawa, Rafał; Niedźwiecka, Alicja

    2017-08-01

    Early adversity has profound long-term consequences for child development across domains. The effects of early adversity on structural and functional brain development were shown for infants under 12 months of life. However, the causal mechanisms of these effects remain relatively unexplored. Using a visual habituation task we investigated whether chaotic home environment may affect processing speed in 5.5 month-old infants (n=71). We found detrimental effects of chaos on processing speed for complex but not for simple visual stimuli. No effects of socio-economic status on infant processing speed were found although the sample was predominantly middle class. Our results indicate that chaotic early environment may adversely affect processing speed in early infancy, but only when greater cognitive resources need to be deployed. The study highlights an attractive avenue for research on the mechanisms linking home environment with the development of attention control. Copyright © 2017 Elsevier Inc. All rights reserved.

  3. Task performance in virtual environments used for cognitive rehabilitation after traumatic brain injury.

    Science.gov (United States)

    Christiansen, C; Abreu, B; Ottenbacher, K; Huffman, K; Masel, B; Culpepper, R

    1998-08-01

    This report describes a reliability study using a prototype computer-simulated virtual environment to assess basic daily living skills in a sample of persons with traumatic brain injury (TBI). The benefits of using virtual reality in training for situations where safety is a factor have been established in defense and industry, but have not been demonstrated in rehabilitation. Thirty subjects with TBI receiving comprehensive rehabilitation services at a residential facility. An immersive virtual kitchen was developed in which a meal preparation task involving multiple steps could be performed. The prototype was tested using subjects who completed the task twice within 7 days. The stability of performance was estimated using intraclass correlation coefficients (ICCs). The ICC value for total performance based on all steps involved in the meal preparation task was .73. When three items with low variance were removed the ICC improved to .81. Little evidence of vestibular optical side-effects was noted in the subjects tested. Adequate initial reliability exists to continue development of the environment as an assessment and training prototype for persons with brain injury.

  4. Performance environment and nested task constraints influence long jump approach run: a preliminary study.

    Science.gov (United States)

    Panteli, Flora; Smirniotou, Athanasia; Theodorou, Apostolos

    2016-01-01

    The purpose of the study was to investigate possible changes at step pattern and technical performance of the long jump approach run in seven young long jumpers by modifying the performance environment (long jump runway versus track lane) and the nested actions (run-through with take-off versus complete long jump). Our findings suggest that the step pattern and technical aspects of the approach run are affected by environmental context and nested task constraints. In terms of environmental context, it appears that practising the training routine of run-through followed by take-off on the long jump runway allows athletes to simulate competition conditions in terms of step regulation and technical efficacy. The task of run-through followed by take-off on the track lane failed to initiate visual perception, step regulation and technical efficiency at the steps preceding the instant of take-off. In terms of nested task constraints, when run-ups were followed by jump for distance instead of only a take-off, a higher level of consistency was achieved and step regulation was based on perception-action coupling. Practising long jump run-up accuracy at a setting not containing the informational elements of the performance environment fails to develop the key elements of the skill.

  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......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 Danish maritime cluster’s development, and unique competences. The comparative assessment highlights the importance of different historical and geographical backgrounds, when explaining the relative positions of the Danish, and other comparable maritime clusters. Other specific common features...

  6. Maritime English for Communication and Cooperation.

    Science.gov (United States)

    Thiel, Teresa A.

    Because most maritime accidents are caused by human error, notably breakdowns in communication or cooperation, and because English is the international maritime language, instruction in maritime English for communication and cooperation is an important element in maritime education. The International Maritime Organization, a specialized agency of…

  7. Hybrid glowworm swarm optimization for task scheduling in the cloud environment

    Science.gov (United States)

    Zhou, Jing; Dong, Shoubin

    2018-06-01

    In recent years many heuristic algorithms have been proposed to solve task scheduling problems in the cloud environment owing to their optimization capability. This article proposes a hybrid glowworm swarm optimization (HGSO) based on glowworm swarm optimization (GSO), which uses a technique of evolutionary computation, a strategy of quantum behaviour based on the principle of neighbourhood, offspring production and random walk, to achieve more efficient scheduling with reasonable scheduling costs. The proposed HGSO reduces the redundant computation and the dependence on the initialization of GSO, accelerates the convergence and more easily escapes from local optima. The conducted experiments and statistical analysis showed that in most cases the proposed HGSO algorithm outperformed previous heuristic algorithms to deal with independent tasks.

  8. Framing of task performance strategies: effects on performance in a multiattribute dynamic decision making environment.

    Science.gov (United States)

    Nygren, T E

    1997-09-01

    It is well documented that the way a static choice task is "framed" can dramatically alter choice behavior, often leading to observable preference reversals. This framing effect appears to result from perceived changes in the nature or location of a person's initial reference point, but it is not clear how framing effects might generalize to performance on dynamic decision making tasks that are characterized by high workload, time constraints, risk, or stress. A study was conducted to examine the hypothesis that framing can introduce affective components to the decision making process and can influence, either favorably (positive frame) or adversely (negative frame), the implementation and use of decision making strategies in dynamic high-workload environments. Results indicated that negative frame participants were significantly impaired in developing and employing a simple optimal decision strategy relative to a positive frame group. Discussion focuses on implications of these results for models of dynamic decision making.

  9. Information Exchange Automation in Maritime Transport

    Directory of Open Access Journals (Sweden)

    Zbigniew Pietrzykowski

    2014-06-01

    Full Text Available To ensure the safety of maritime transport the access to information must be provided through a commonly used services. However, an equally important task is to determine or agree on interpretation of incoming data and assessment of a current and predicted navigational situation and, in further step, intentions of the participants in the transport process. Thanks to the standardization of information format, automatic information exchange gets increasingly wider. Another step ahead is automatic interpretation of information and automation of negotiation processes - intelligent communication. Rapid development of IT and ICT technologies creates such opportunities. This article presents the results of research on a system of automatic communication and co-operation in maritime transport.

  10. 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...... them of secondary importance. Green maritime logistics tries to bring the environmental dimension into the problem, and specifically the dimension of emissions reduction, by analyzing various trade-offs and exploring ‘win-win’ solutions. This talk takes a look at the trade-offs that are at stake...

  11. Det Maritime Hus

    DEFF Research Database (Denmark)

    Albrechtsen, Thomas Rohde Skovdal

    2017-01-01

    Denne rapport er en slutevaluering af udviklingsprojektet Det Maritime Hus, og består af en analyse og diskussion af en spørgeskemaundersøgelse foretaget i perioden efterår 2014 til forår 2017. Evalueringen besvarer følgende tre spørgsmål og målsætninger med projektet: 1. På hvilke måder formåede...... lærere undervisningsforløbet som brugbart i forhold til egen undervisning? Konklusionen på evalueringen er, at Det Maritime Hus har formået at understøtte de deltagende elevers interesse og læring inden for science-området gennem de designede undervisningsforløb, som er blevet udbudt og gennemført i...

  12. Task group of international union of radioecology 'ecosystem approach to environment protection'

    International Nuclear Information System (INIS)

    Fuma, Shoichi

    2011-01-01

    An ecosystem approach is a holistic (i.e., top-down) strategy for protection of ecosystem structures and functions from perturbations. A task group of International Union of Radioecology 'Ecosystem Approach to Environment Protection' was launched in April, 2010. This task group is preparing a report on the following topics: (1) goals of environmental protection; (2) legislation about environmental protection; (3) assessment of the Reference Animals and Plants (RAP) concept in the general context of environmental protection; (4) limitations and uncertainties of the RAPs concept; (5) justification and merits of the ecosystem approach; (6) assessing the feasibility of the ecosystem approach; (7) research and development required for the ecosystem approach; and (8) recommendations with respect to radiation protection. The topics 1, 3, 4 and 5 have been almost completely prepared, and demonstrate that the ecosystem approach is required for radiation protection of the environment. On the other hand, methods of the ecosystem approach which should be adopted for radiation protection of the environment are not clear in the current draft report. They should be specified by reviewing the Convention on Biological Diversity, fish stock management and other activities where the ecosystem approach is already adopted. (author)

  13. Cognitive architectures: choreographing the dance of mental operations with the task environment.

    Science.gov (United States)

    Gray, Wayne D

    2008-06-01

    In this article, I present the ideas and trends that have given rise to the use of cognitive architectures in human factors and provide a cognitive engineering-oriented taxonomy of these architectures and a snapshot of their use for cognitive engineering. Architectures of cognition have had a long history in human factors but a brief past. The long history entails a 50-year preamble, whereas the explosion of work in the current decade reflects the brief past. Understanding this history is key to understanding the current and future prospects for applying cognitive science theory to human factors practice. The review defines three formative eras in cognitive engineering research: the 1950s, 1980s, and now. In the first era, the fledging fields of cognitive science and human factors emphasized characteristics of the dancer the limited capacity or bounded rationality view of the mind, and the ballroom, the task environment. The second era emphasized the dance (i.e., the dynamic interaction between mental operations and task environment). The third era has seen the rise of cognitive architectures as tools for choreographing the dance of mental operations within the complex environments posed by human factors practice. Hybrid architectures present the best vector for introducing cognitive science theories into a renewed engineering-based human factors. The taxonomy provided in this article may provide guidance on when and whether to apply a cognitive science or a hybrid architecture to a human factors issue.

  14. The monitoring of radioactive contamination and radiation exposure in the environment in Germany- tasks, techniques, realizations

    International Nuclear Information System (INIS)

    Bayer, A.

    1998-01-01

    A brief historical account of the development of the monitoring of radioactivity in the environment in Germany is given. The aims of monitoring and the tasks, classified according to the possible sources of release, are presented and the methods required are described. The monitoring systems, set up on the basis of different legal principles, are presented and the technical realization of these including their current state of development, is described. Finally, an account is given of the coordination of the national monitoring systems which is at present in progress, as well as of the integration of these monitoring systems into international monitoring and information networks. (author)

  15. The Land Component Role in Maritime Security

    Science.gov (United States)

    2016-12-31

    nations for resources. They must also confront maritime threats, which include piracy , armed robbery, damage to the marine environment (i.e. pollution...such as an armed attack from a military vessel. Most definitions also usually include security from crimes at sea, such as piracy , armed robbery...security through stability operations, one must accept that any effective government must focus on basic governmental functions – providing for the

  16. Accelerating Dust Storm Simulation by Balancing Task Allocation in Parallel Computing Environment

    Science.gov (United States)

    Gui, Z.; Yang, C.; XIA, J.; Huang, Q.; YU, M.

    2013-12-01

    Dust storm has serious negative impacts on environment, human health, and assets. The continuing global climate change has increased the frequency and intensity of dust storm in the past decades. To better understand and predict the distribution, intensity and structure of dust storm, a series of dust storm models have been developed, such as Dust Regional Atmospheric Model (DREAM), the NMM meteorological module (NMM-dust) and Chinese Unified Atmospheric Chemistry Environment for Dust (CUACE/Dust). The developments and applications of these models have contributed significantly to both scientific research and our daily life. However, dust storm simulation is a data and computing intensive process. Normally, a simulation for a single dust storm event may take several days or hours to run. It seriously impacts the timeliness of prediction and potential applications. To speed up the process, high performance computing is widely adopted. By partitioning a large study area into small subdomains according to their geographic location and executing them on different computing nodes in a parallel fashion, the computing performance can be significantly improved. Since spatiotemporal correlations exist in the geophysical process of dust storm simulation, each subdomain allocated to a node need to communicate with other geographically adjacent subdomains to exchange data. Inappropriate allocations may introduce imbalance task loads and unnecessary communications among computing nodes. Therefore, task allocation method is the key factor, which may impact the feasibility of the paralleling. The allocation algorithm needs to carefully leverage the computing cost and communication cost for each computing node to minimize total execution time and reduce overall communication cost for the entire system. This presentation introduces two algorithms for such allocation and compares them with evenly distributed allocation method. Specifically, 1) In order to get optimized solutions, a

  17. 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.

  18. 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...

  19. The Mica Creek Experimental Watershed: An Outdoor Laboratory for the Investigation of Hydrologic Processes in a Continental/Maritime Mountainous Environment

    Science.gov (United States)

    Link, T. E.; Gravelle, J.; Hubbart, J.; Warnsing, A.; Du, E.; Boll, J.; Brooks, E.; Cundy, T.

    2004-12-01

    Experimental catchments have proven to be extremely useful for investigations focused on fundamental hydrologic processes and on the impacts of land cover change on hydrologic regimes and water quality. Recent studies have illustrated how watershed responses to experimental treatments vary greatly between watersheds with differing physical, ecological and hydroclimatic characteristics. Meteorological and hydrological data within catchments are needed to help identify how hydrologic mechanisms may be altered by land cover alterations, and to both constrain and develop spatially-distributed physically based models. Existing instrumentation at the Mica Creek Experimental Watershed (MCEW) in northern Idaho is a fourth-order catchment that is undergoing expansion to produce a comprehensive dataset for model development and testing. The experimental catchments encompass a 28 km2 area spanning elevations from 975 to 1725 m msl. Snow processes dominate the hydrology of the catchment and climate conditions in the winter alternate between cold, dry continental and warm, moist maritime weather systems. Landcover is dominated by 80 year old second growth conifer forests, with partially cut (thinned) and clear-cut sub-catchments. Climate and precipitation data are collected at a SNOTEL site, three primary, and seven supplemental meteorological stations stratified by elevation and canopy cover. Manual snow depth measurements are recorded every 1-2 weeks during snowmelt, stratified by aspect, elevation and canopy cover. An air temperature transect spans three second-order sub-catchments to track air temperature lapse rate dynamics. Precipitation gauge arrays are installed within thinned and closed-canopy stands to track throughfall and interception loss. Nine paired and nested sub-catchments are monitored for flow, temperature, sediment, and nutrients. Hydroclimatic data are augmented by LiDAR and hyperspectral imagery for determination of canopy and topographic structure

  20. Hybrid Maritime Warfare

    DEFF Research Database (Denmark)

    Schaub Jr, Gary John; Murphy, Martin; Hoffman, Frank

    2017-01-01

    Russia’s use of hybrid warfare techniques has raised concerns about the security of the Baltic States. Gary Schaub, Jr, Martin Murphy and Frank G Hoffman recommend a series of measures to augment NATO’s Readiness Action Plan in the Baltic region, including increasing the breadth and depth of naval...... exercises, and improving maritime domain awareness through cooperative programmes. They also suggest unilateral and cooperative measures to develop a sound strategic communications strategy to counter Moscow’s information operations, reduce dependence on Russian energy supplies and build the resilience...

  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...... technologies on control practices in inter-organizational processes related to coping with an engine failure. We collected qualitative data from in depth interviews with representatives of the involved parties. We identify organizational and behavioural challenges hindering information sharing during problem...... technologies increase information sharing and thus the efficiency of inter-organizational processes when coping with an engine failure....

  2. Naval Maritime Physician : Roles and Challenges

    Directory of Open Access Journals (Sweden)

    Ranjan Sarkar

    2016-01-01

    Roles and challenges: Good maritime medicalpractice involves meeting numerous challenges of clinical, occupational, emergency, trauma and psychiatric medicine, in addition on board physicians must also have, in depth knowledge of pschycosomatic conditions due to stress andfatigue of crew and special conditions such as diving accidents and accidents involving aquatic animals. The situation on board requires extraordinary skills as interventions are difficult, both physically and technically, because the conditions at sea are often acrobatic and at certain times evacuation is also not possible due to weather and operational constraints. Thus the role naval doctor on board ships is truly of an all round physicians, a team mate and a good leader. Conclusion: In conclusion, responsibilities of Naval Maritime Physician is not limited to clinical activities but is multifaceted and objective training about the specifics of warships′ environment and related health problems is the key to achieve professional excellence in every sphere.

  3. 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.

  4. 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.

  5. Control of radioactive contamination and radiation exposure in the environment - tasks, techniques, implementation

    International Nuclear Information System (INIS)

    Bayer, A.

    1997-01-01

    A brief historical abstract of the steps in the discovery of natural radioactivity and development of man-made radioactivity is presented, as well as the historical development of the control of radioactivity in the environment. The goals of control measures and the tasks, classified by the possible sources of release, are demonstrated and the required methods described (measuring methods, evaluation methods, and information techniques). The control measures, based on different legal principles, are introduced and their technological implementation, including their current status, described. Finally, an account is given of the progressive harmonisation of the national control systems, as well as of the integration of these control systems into international control and information networks. (orig.) [de

  6. Towards Service Robots for Everyday Environments Recent Advances in Designing Service Robots for Complex Tasks in Everyday Environments

    CERN Document Server

    Zöllner, Marius; Bischoff, Rainer; Burgard, Wolfram; Haschke, Robert; Hägele, Martin; Lawitzky, Gisbert; Nebel, Bernhard; Plöger, Paul; Reiser, Ulrich

    2012-01-01

    People have dreamed of machines, which would free them from unpleasant, dull, dirty and dangerous tasks and work for them as servants, for centuries if not millennia. Service robots seem to finally let these dreams come true. But where are all these robots that eventually serve us all day long, day for day? A few service robots have entered the market: domestic and professional cleaning robots, lawnmowers, milking robots, or entertainment robots. Some of these robots look more like toys or gadgets rather than real robots. But where is the rest? This is a question, which is asked not only by customers, but also by service providers, care organizations, politicians, and funding agencies. The answer is not very satisfying. Today’s service robots have their problems operating in everyday environments. This is by far more challenging than operating an industrial robot behind a fence. There is a comprehensive list of technical and scientific problems, which still need to be solved. To advance the state of the art...

  7. Maritime Activities: Requirements for Improving Space Based Solutions

    Science.gov (United States)

    Cragnolini, A.; Miguel-Lago, M.

    2005-03-01

    Maritime initiatives cannot be pursued only within their own perimeter. Sector endeavours and the policies which rule over them have wide range implications and several links with other sectors of activity. A well- balanced relationship of sea exploitation, maritime transportation, environmental protection and security ruled by national or international laws, will be a main issue for the future of all kind of maritime activities. Scientific research and technology development, along with enlightened and appropriate institutional regulations are relevant to ensure maritime sustainability.The use of satellite technology for monitoring international agreements should have a close co- ordination and be based on institutional consensus. Frequently, rules and new regulations set by policy makers are not demanding enough due to lack of knowledge about the possibilities offered by available technologies.Law enforcement actions could bring space technology new opportunities to offer solutions for monitoring and verification. Operators should aim at offering space data in a more operational and user-friendly way, providing them with useful and timely information.This paper will analyse the contribution of satellite technology to deal with the specificity of maritime sector, stressing the conditions for both an adequate technology improvement and an effective policy implementation.After analysing the links between maritime activities, space technologies and the institutional environment, the paper identifies some boundary conditions of the future developments. Conclusions are basically a check list for improving the present situation, while a road map is suggested as a matter of a way to proceed.

  8. Neural Correlates of a Perspective-taking Task Using in a Realistic Three-dimmensional Environment Based Task: A Pilot Functional Magnetic Resonance Imaging Study.

    Science.gov (United States)

    Agarwal, Sri Mahavir; Shivakumar, Venkataram; Kalmady, Sunil V; Danivas, Vijay; Amaresha, Anekal C; Bose, Anushree; Narayanaswamy, Janardhanan C; Amorim, Michel-Ange; Venkatasubramanian, Ganesan

    2017-08-31

    Perspective-taking ability is an essential spatial faculty that is of much interest in both health and neuropsychiatric disorders. There is limited data on the neural correlates of perspective taking in the context of a realistic three-dimensional environment. We report the results of a pilot study exploring the same in eight healthy volunteers. Subjects underwent two runs of an experiment in a 3 Tesla magnetic resonance imaging (MRI) involving alternate blocks of a first-person perspective based allocentric object location memory task (OLMT), a third-person perspective based egocentric visual perspective taking task (VPRT), and a table task (TT) that served as a control. Difference in blood oxygen level dependant response during task performance was analyzed using Statistical Parametric Mapping software, version 12. Activations were considered significant if they survived family-wise error correction at the cluster level using a height threshold of p <0.001, uncorrected at the voxel level. A significant difference in accuracy and reaction time based on task type was found. Subjects had significantly lower accuracy in VPRT compared to TT. Accuracy in the two active tasks was not significantly different. Subjects took significantly longer in the VPRT in comparison to TT. Reaction time in the two active tasks was not significantly different. Functional MRI revealed significantly higher activation in the bilateral visual cortex and left temporoparietal junction (TPJ) in VPRT compared to OLMT. The results underscore the importance of TPJ in egocentric manipulation in healthy controls in the context of reality-based spatial tasks.

  9. State University of New York Maritime College: Selected Financial Management Practices.

    Science.gov (United States)

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

    This report presents audit findings of the financial management practices at the State University of New York (SUNY) Maritime College, which trains students to become licensed officers in the U.S. Merchant Marines. Specifically, the audit examined whether SUNY Maritime maintains an adequate internal control environment and adequate internal…

  10. The Maritime Environment - International Conference and Exhibition on Ballast Water, Waste Water and Sewage Treatment on Ships and in Ports Held in Bremerhaven, Germany on 12-14 September 2001. Conference Proceedings

    National Research Council Canada - National Science Library

    2001-01-01

    The Maritime International Conference on Ballast Water, Waste Water and Sewage Treatment on Ships and in Ports held in Bremerhaven, Germany on 12-14 September 2001 was cosponsored by Deerberg-Systems...

  11. Maritimes and northeast pipeline update

    International Nuclear Information System (INIS)

    Langan, P.

    1998-01-01

    Efforts made by Maritimes and Northeast Pipelines to bring the benefits of natural gas to the Maritime's economy was discussed. Some background on the developments that have brought the company to where they are today and an update on all their activities were presented. These activities and operations are expected to impact and affect the region's economy in a positive way. Particular attention was paid to the company's policy on laterals and the positive effects of that policy on the development of natural gas service and future natural gas distribution business in the Maritimes

  12. INTERNET COMMERCE IN MARITIME INDUSTRY

    OpenAIRE

    Monika Szyda

    2014-01-01

    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 at...

  13. Using cognitive architectures to study issues in team cognition in a complex task environment

    Science.gov (United States)

    Smart, Paul R.; Sycara, Katia; Tang, Yuqing

    2014-05-01

    Cognitive social simulation is a computer simulation technique that aims to improve our understanding of the dynamics of socially-situated and socially-distributed cognition. This makes cognitive social simulation techniques particularly appealing as a means to undertake experiments into team cognition. The current paper reports on the results of an ongoing effort to develop a cognitive social simulation capability that can be used to undertake studies into team cognition using the ACT-R cognitive architecture. This capability is intended to support simulation experiments using a team-based problem solving task, which has been used to explore the effect of different organizational environments on collective problem solving performance. The functionality of the ACT-R-based cognitive social simulation capability is presented and a number of areas of future development work are outlined. The paper also describes the motivation for adopting cognitive architectures in the context of social simulation experiments and presents a number of research areas where cognitive social simulation may be useful in developing a better understanding of the dynamics of team cognition. These include the use of cognitive social simulation to study the role of cognitive processes in determining aspects of communicative behavior, as well as the impact of communicative behavior on the shaping of task-relevant cognitive processes (e.g., the social shaping of individual and collective memory as a result of communicative exchanges). We suggest that the ability to perform cognitive social simulation experiments in these areas will help to elucidate some of the complex interactions that exist between cognitive, social, technological and informational factors in the context of team-based problem-solving activities.

  14. An automation of design and modelling tasks in NX Siemens environment with original software - generator module

    Science.gov (United States)

    Zbiciak, M.; Grabowik, C.; Janik, W.

    2015-11-01

    Nowadays the design constructional process is almost exclusively aided with CAD/CAE/CAM systems. It is evaluated that nearly 80% of design activities have a routine nature. These design routine tasks are highly susceptible to automation. Design automation is usually made with API tools which allow building original software responsible for adding different engineering activities. In this paper the original software worked out in order to automate engineering tasks at the stage of a product geometrical shape design is presented. The elaborated software works exclusively in NX Siemens CAD/CAM/CAE environment and was prepared in Microsoft Visual Studio with application of the .NET technology and NX SNAP library. The software functionality allows designing and modelling of spur and helicoidal involute gears. Moreover, it is possible to estimate relative manufacturing costs. With the Generator module it is possible to design and model both standard and non-standard gear wheels. The main advantage of the model generated in such a way is its better representation of an involute curve in comparison to those which are drawn in specialized standard CAD systems tools. It comes from fact that usually in CAD systems an involute curve is drawn by 3 points that respond to points located on the addendum circle, the reference diameter of a gear and the base circle respectively. In the Generator module the involute curve is drawn by 11 involute points which are located on and upper the base and the addendum circles therefore 3D gear wheels models are highly accurate. Application of the Generator module makes the modelling process very rapid so that the gear wheel modelling time is reduced to several seconds. During the conducted research the analysis of differences between standard 3 points and 11 points involutes was made. The results and conclusions drawn upon analysis are shown in details.

  15. Virtual environment to quantify the influence of colour stimuli on the performance of tasks requiring attention

    Directory of Open Access Journals (Sweden)

    Frère Annie F

    2011-08-01

    Full Text Available Abstract Background Recent studies indicate that the blue-yellow colour discrimination is impaired in ADHD individuals. However, the relationship between colour and performance has not been investigated. This paper describes the development and the testing of a virtual environment that is capable to quantify the influence of red-green versus blue-yellow colour stimuli on the performance of people in a fun and interactive way, being appropriate for the target audience. Methods An interactive computer game based on virtual reality was developed to evaluate the performance of the players. The game's storyline was based on the story of an old pirate who runs across islands and dangerous seas in search of a lost treasure. Within the game, the player must find and interpret the hints scattered in different scenarios. Two versions of this game were implemented. In the first, hints and information boards were painted using red and green colours. In the second version, these objects were painted using blue and yellow colours. For modelling, texturing, and animating virtual characters and objects the three-dimensional computer graphics tool Blender 3D was used. The textures were created with the GIMP editor to provide visual effects increasing the realism and immersion of the players. The games were tested on 20 non-ADHD volunteers who were divided into two subgroups (A1 and A2 and 20 volunteers with ADHD who were divided into subgroups B1 and B2. Subgroups A1 and B1 used the first version of the game with the hints painted in green-red colors, and subgroups A2 and B2 the second version using the same hints now painted in blue-yellow. The time spent to complete each task of the game was measured. Results Data analyzed with ANOVA two-way and posthoc TUKEY LSD showed that the use of blue/yellow instead of green/red colors decreased the game performance of all participants. However, a greater decrease in performance could be observed with ADHD participants

  16. Virtual environment to quantify the influence of colour stimuli on the performance of tasks requiring attention.

    Science.gov (United States)

    Silva, Alessandro P; Frère, Annie F

    2011-08-19

    Recent studies indicate that the blue-yellow colour discrimination is impaired in ADHD individuals. However, the relationship between colour and performance has not been investigated. This paper describes the development and the testing of a virtual environment that is capable to quantify the influence of red-green versus blue-yellow colour stimuli on the performance of people in a fun and interactive way, being appropriate for the target audience. An interactive computer game based on virtual reality was developed to evaluate the performance of the players.The game's storyline was based on the story of an old pirate who runs across islands and dangerous seas in search of a lost treasure. Within the game, the player must find and interpret the hints scattered in different scenarios. Two versions of this game were implemented. In the first, hints and information boards were painted using red and green colours. In the second version, these objects were painted using blue and yellow colours. For modelling, texturing, and animating virtual characters and objects the three-dimensional computer graphics tool Blender 3D was used. The textures were created with the GIMP editor to provide visual effects increasing the realism and immersion of the players. The games were tested on 20 non-ADHD volunteers who were divided into two subgroups (A1 and A2) and 20 volunteers with ADHD who were divided into subgroups B1 and B2. Subgroups A1 and B1 used the first version of the game with the hints painted in green-red colors, and subgroups A2 and B2 the second version using the same hints now painted in blue-yellow. The time spent to complete each task of the game was measured. Data analyzed with ANOVA two-way and posthoc TUKEY LSD showed that the use of blue/yellow instead of green/red colors decreased the game performance of all participants. However, a greater decrease in performance could be observed with ADHD participants where tasks, that require attention, were most affected

  17. 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...

  18. 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...

  19. 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.

  20. 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 Chief Medical Advisor for the British government's Department for Transport, gives his personal - and thus non-official - opinions on these issues....

  1. Noise disturbance in open-plan study environments: a field study on noise sources, student tasks and room acoustic parameters.

    Science.gov (United States)

    Braat-Eggen, P Ella; van Heijst, Anne; Hornikx, Maarten; Kohlrausch, Armin

    2017-09-01

    The aim of this study is to gain more insight in the assessment of noise in open-plan study environments and to reveal correlations between noise disturbance experienced by students and the noise sources they perceive, the tasks they perform and the acoustic parameters of the open-plan study environment they work in. Data were collected in five open-plan study environments at universities in the Netherlands. A questionnaire was used to investigate student tasks, perceived sound sources and their perceived disturbance, and sound measurements were performed to determine the room acoustic parameters. This study shows that 38% of the surveyed students are disturbed by background noise in an open-plan study environment. Students are mostly disturbed by speech when performing complex cognitive tasks like studying for an exam, reading and writing. Significant but weak correlations were found between the room acoustic parameters and noise disturbance of students. Practitioner Summary: A field study was conducted to gain more insight in the assessment of noise in open-plan study environments at universities in the Netherlands. More than one third of the students was disturbed by noise. An interaction effect was found for task type, source type and room acoustic parameters.

  2. Thermal effects on human performance in office environment measured by integrating task speed and accuracy

    DEFF Research Database (Denmark)

    Lan, Li; Wargocki, Pawel; Lian, Zhiwei

    2014-01-01

    We have proposed a method in which the speed and accuracy can be integrated into one metric of human performance. This was achieved by designing a performance task in which the subjects receive feedback on their performance by informing them whether they have committed errors, and if did, they can......, 12 subjects performed tasks under two thermal conditions (neutral & warm) repeatedly. The tasks were presented with and without feedback on errors committed, as outlined above. The results indicate that there was a greater decrease in task performance due to thermal discomfort when feedback was given......, compared to the performance of tasks presented without feedback....

  3. Collective goals and shared tasks: interdependence structure and perceptions of individual sport team environments.

    Science.gov (United States)

    Evans, M B; Eys, M A

    2015-02-01

    Across two studies, we tested the proposition that interdependence structures (i.e., task interaction among teammates during competition, competition against teammates, presence of a collective outcome) influence interdependence perceptions among teammates as well as perceptions of group cohesion, competitiveness, and satisfaction. Study 1 was a paper-and-pencil survey completed by 210 individual sport athletes from 12 university- and college-level teams. Multiple mediation analyses demonstrated that participants who had to work alongside teammates during competition reported increased interdependence perceptions that were, in turn, associated with increased cohesion and satisfaction as well as decreased competitiveness. There were no differences according to whether participants competed in the same event as all of their teammates or not. Study 2 involved a weekly e-mail survey with 17 university-level individual sport athletes who reported interdependence perceptions on a continual basis over the course of their competitive season. Interdependence perceptions were higher during weeks that were close in time to competitions with a collective group outcome. These studies reveal how interdependence structures shape the group environment and support applied efforts that consider ways to structure teammate interdependencies in ways to optimize group functioning and promote member satisfaction. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  4. Effects of imperfect automation and individual differences on concurrent performance of military and robotics tasks in a simulated multitasking environment.

    Science.gov (United States)

    Chen, J Y C; Terrence, P I

    2009-08-01

    This study investigated the performance and workload of the combined position of gunner and robotics operator in a simulated military multitasking environment. Specifically, the study investigated how aided target recognition (AiTR) capabilities for the gunnery task with imperfect reliability (false-alarm-prone vs. miss-prone) might affect the concurrent robotics and communication tasks. Additionally, the study examined whether performance was affected by individual differences in spatial ability and attentional control. Results showed that when the robotics task was simply monitoring the video, participants had the best performance in their gunnery and communication tasks and the lowest perceived workload, compared with the other robotics tasking conditions. There was a strong interaction between the type of AiTR unreliability and participants' perceived attentional control. Overall, for participants with higher perceived attentional control, false-alarm-prone alerts were more detrimental; for low attentional control participants, conversely, miss-prone automation was more harmful. Low spatial ability participants preferred visual cueing and high spatial ability participants favoured tactile cueing. Potential applications of the findings include personnel selection for robotics operation, robotics user interface designs and training development. The present results will provide further understanding of the interplays among automation reliability, multitasking performance and individual differences in military tasking environments. These results will also facilitate the implementation of robots in military settings and will provide useful data to military system designs.

  5. Learner-Centered Instruction (LCI): Volume IV, The Simulated Maintenance Task Environment (SMTE): A Job Specific Simulator.

    Science.gov (United States)

    Rifkin, Kenneth I.; And Others

    The purpose of the simulated maintenance task environment is to provide a means for training and job performance testing of the flight line weapon control systems mechanic/technician for the F-111A aircraft. It provides practice in flight line equipment checkout, troubleshooting, and removal and replacement of line replaceable units in the…

  6. Noise disturbance in open-plan study environments : a field study on noise sources, student tasks and room acoustic parameters

    NARCIS (Netherlands)

    Braat-Eggen, P.E.; van Heijst, A.W.M.; Hornikx, M.C.J.; Kohlrausch, A.G.

    2017-01-01

    The aim of this study is to gain more insight in the assessment of noise in open-plan study environments and to reveal correlations between noise disturbance experienced by students and the noise sources they perceive, the tasks they perform and the acoustic parameters of the open-plan study

  7. 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.

  8. 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.

  9. Effect of a Body Model on Performance in a Virtual Environment Search Task

    National Research Council Canada - National Science Library

    Singer, Michael

    1998-01-01

    ...) in training dismounted soldiers. This experiment investigated full body representation (generic) versus a hand linked pointer on movement performance in an office building interior during a search task...

  10. 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

  11. 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

  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. 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.

  14. The SEDIBUD (Sediment Budgets in Cold Environments) Programme: Current activities and future key tasks

    Science.gov (United States)

    Beylich, A. A.; Lamoureux, S. F.; Decaulne, A.

    2012-04-01

    Projected climate change in cold regions is expected to alter melt season duration and intensity, along with the number of extreme rainfall events, total annual precipitation and the balance between snowfall and rainfall. Similarly, changes to the thermal balance are expected to reduce the extent of permafrost and seasonal ground frost and increase active layer depths. These effects will undoubtedly change surface environments in cold regions and alter the fluxes of sediments, nutrients and solutes, but the absence of quantitative data and coordinated process monitoring and analysis to understand the sensitivity of the Earth surface environment is acute in cold climate environments. The International Association of Geomorphologists (I.A.G./A.I.G.)SEDIBUD (Sediment Budgets in Cold Environments) Programme was formed in 2005 to address this existing key knowledge gap. SEDIBUD currently has about 400 members worldwide and the Steering Committee of this international programme is composed of ten scientists from eight different countries: Achim A. Beylich (Chair) (Norway), Armelle Decaulne (Secretary) (France), John C. Dixon (USA), Scott F. Lamoureux (Vice-Chair) (Canada), John F. Orwin (Canada), Jan-Christoph Otto (Austria), Irina Overeem (USA), Thorsteinn Saemundsson (Iceland), Jeff Warburton (UK), Zbigniew Zwolinski (Poland). The central research question of this global group of scientists is to: Assess and model the contemporary sedimentary fluxes in cold climates, with emphasis on both particulate and dissolved components. Initially formed as European Science Foundation (ESF) Network SEDIFLUX (2004-2006), SEDIBUD has further expanded to a global group of researchers with field research sites located in polar and alpine regions in the northern and southern hemisphere. Research carried out at each of the close to 50 defined SEDIBUD key test sites varies by programme, logistics and available resources, but typically represent interdisciplinary collaborations of

  15. Consideration of Task Performance for Robots Engaged in Extremely Dangerous Environment in Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Seung Mo; Han, Kee Soo; Yi, Sung Deok; Kim, Seoung Rae [Nuclear Engineering Service and Solution Co. Ltd., Daejeon (Korea, Republic of); Choi, Young [KAERI, Daejeon (Korea, Republic of)

    2015-05-15

    After Fukushima Daiichi Nuclear Accident, it is started to pay more attention to operation and accident of nuclear power plants (NPPs). For domestic nuclear industry, it was recommended to establish corresponding strategies against accidents due to extremely dangerous natural disasters. Each nuclear power plant is also preparing to establish strategies to secure nuclear safety functions by estimating the counterplans for extreme accidents. Robots are particularly being used to access the areas where those are dangerous for human beings to access or to restore the accident. Robot technologies in NPPs are emerging cutting-edge technologies that are just a start except the developed countries like USA, Japan, etc. But they are carefully considered because they have the advantages of performing tasks in extremely dangerous environment in NPPs instead of human beings. In this study, the applicability of robots will be considered in extremely dangerous environment in NPPs. Accurate judgment of the inside situation of the plant and quick actions in the extreme condition like earthquake accompanied by loss of all AC powers should be considered as major function in terms of prevention of accident spread. According to the reported stress test results of domestic NPPs, the difficult things for operators to carry out in extreme conditions can be predictable, therefore the active use of robots as accident mitigation strategies will be helpful to reduce the unnecessary spending for facility improvement. Current trend of domestic and foreign robot technology development focuses on the information search of the inside of the plant and development of preventive maintenance of NPPs. As seen actually in Fukushima Daiichi, main roles of robots place emphasis on measuring the inside radiation level accessing to the area where operator cannot access and delivering information which can support operator's decision-making and actions. Therefore, it is considered that development of

  16. Using Web-Based Exploratory Tasks to Develop Intercultural Competence in a Homogeneous Cultural Environment

    Science.gov (United States)

    Stockwell, Esther

    2016-01-01

    This study adapted web-based exploratory tasks using WebQuests as a means of enabling students to understand and reflect on both the target and their own culture. Learners actively used various authentic resources selected to meet their linguistic and cognitive needs to complete the tasks. The aim of this study was to help Japanese university…

  17. Emotional and cognitive influences in air traffic controller tasks: An investigation using a virtual environment?

    Science.gov (United States)

    Truschzinski, Martina; Betella, Alberto; Brunnett, Guido; Verschure, Paul F M J

    2018-05-01

    Air traffic controllers are required to perform complex tasks which require attention and high precision. This study investigates how the difficulty of such tasks influences emotional states, cognitive workload and task performance. We use quantitative and qualitative measurements, including the recording of pupil dilation and changes in affect using questionnaires. Participants were required to perform a number of air traffic control tasks using the immersive human accessible Virtual Reality space in the "eXperience Induction Machine". Based on the data collected, we developed and validated a model which integrates personality, workload and affective theories. Our results indicate that the difficulty of an air traffic control task has a direct influence on cognitive workload as well as on the self-reported mood; whereas both mood and workload seem to change independently. In addition, we show that personality, in particular neuroticism, affects both mood and performance of the participants. Copyright © 2018 Elsevier Ltd. All rights reserved.

  18. The Environment Makes a Difference: The Impact of Explicit and Implicit Attitudes as Precursors in Different Food Choice Tasks.

    Science.gov (United States)

    König, Laura M; Giese, Helge; Schupp, Harald T; Renner, Britta

    2016-01-01

    Studies show that implicit and explicit attitudes influence food choice. However, precursors of food choice often are investigated using tasks offering a very limited number of options despite the comparably complex environment surrounding real life food choice. In the present study, we investigated how the assortment impacts the relationship between implicit and explicit attitudes and food choice (confectionery and fruit), assuming that a more complex choice architecture is more taxing on cognitive resources. Specifically, a binary and a multiple option choice task based on the same stimulus set (fake food items) were presented to ninety-seven participants. Path modeling revealed that both explicit and implicit attitudes were associated with relative food choice (confectionery vs. fruit) in both tasks. In the binary option choice task, both explicit and implicit attitudes were significant precursors of food choice, with explicit attitudes having a greater impact. Conversely, in the multiple option choice task, the additive impact of explicit and implicit attitudes was qualified by an interaction indicating that, even if explicit and implicit attitudes toward confectionery were inconsistent, more confectionery was chosen than fruit if either was positive. This compensatory 'one is sufficient'-effect indicates that the structure of the choice environment modulates the relationship between attitudes and choice. The study highlights that environmental constraints, such as the number of choice options, are an important boundary condition that need to be included when investigating the relationship between psychological precursors and behavior.

  19. Supporting the Maritime Information Dominance: Optimizing Tactical Network for Biometric Data Sharing in Maritime Interdiction Operations

    Science.gov (United States)

    2015-03-01

    biometric data collection. Capture role- player mock biometric data including finger prints, iris scans, and facial recognition photos. (MOC training...MARITIME INFORMATION DOMINANCE: OPTIMIZING TACTICAL NETWORK FOR BIOMETRIC DATA SHARING IN MARITIME INTERDICTION OPERATIONS by Adam R. Sinsel...MARITIME INFORMATION DOMINANCE: OPTIMIZING TACTICAL NETWORK FOR BIOMETRIC DATA SHARING IN MARITIME INTERDICTION OPERATIONS 6. AUTHOR(S) Adam R

  20. 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…

  1. Maritime archaeology and shipwrecks off Goa

    Digital Repository Service at National Institute of Oceanography (India)

    Tripati, S.; Gaur, A; Sundaresh

    In recent years, maritime archaeological studies have unearthed several of our lost cultural heritages. Many believe that maritime archaeology is a complex and specialized field. Author has penned down his personal experiences in the form...

  2. 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

  3. 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

  4. 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.

  5. 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.

  6. 78 FR 31809 - National Maritime Day, 2013

    Science.gov (United States)

    2013-05-24

    ... Vol. 78 Friday, No. 101 May 24, 2013 Part VI The President Proclamation 8985--National Maritime... Maritime Day, 2013 By the President of the United States of America A Proclamation Through every chapter of... economic growth by shipping our products all around the world. On National Maritime Day, we honor the...

  7. Maritime Cyber Security University Research: Phase 1

    Science.gov (United States)

    2016-05-01

    i Classification | CG-926 RDC | author | audience | month year Maritime Cyber Security University Research Phase I - Final Report...Appendices Distribution Statement A: Approved for public release; distribution is unlimited. May 2016 Report No. CG-D-07-16 Maritime ...Macesker Executive Director United States Coast Guard Research & Development Center 1 Chelsea Street New London, CT 06320 Maritime Cyber Security

  8. Documenting Maritime Folklife: An Introductory Guide.

    Science.gov (United States)

    Taylor, David A.

    This booklet has two main purposes: (1) to promote understanding of maritime cultural heritage; and (2) to provide an introduction to the methods for identifying and documenting common maritime traditions. The guide is intended for non-professional researchers and community groups who wish to explore their own maritime cultural heritage. It also…

  9. Unmanned Maritime Systems Incremental Acquisition Approach

    Science.gov (United States)

    2016-12-01

    REPORT TYPE AND DATES COVERED MBA professional report 4. TITLE AND SUBTITLE UNMANNED MARITIME SYSTEMS INCREMENTAL ACQUISITION APPROACH 5. FUNDING...Approved for public release. Distribution is unlimited. UNMANNED MARITIME SYSTEMS INCREMENTAL ACQUISITION APPROACH Thomas Driscoll, Lieutenant...UNMANNED MARITIME SYSTEMS INCREMENTAL ACQUISITION APPROACH ABSTRACT The purpose of this MBA report is to explore and understand the issues

  10. Risk assessment in maritime transportation

    International Nuclear Information System (INIS)

    Soares, C. Guedes; Teixeira, A.P.

    2001-01-01

    A review is presented of different approaches to quantify the risk in maritime transportation. The discussion of several accident statistics provides a global assessment of the risk levels and its differentiation in ship types and main types of ship losses. Early studies in the probability of ship loss by foundering and capsizing are reviewed. The approaches used to assess the risk of structural design are addressed. Finally a brief account is given of recent development of using formal safety assessments to support decision making on legislation applicable internationally to maritime transportation

  11. QUEST/Ada (query utility environment for software testing of Ada: The development of a program analysis environment for Ada, task 1, phase 3

    Science.gov (United States)

    Brown, David B.

    1991-01-01

    The results of research and development efforts of the first six months of Task 1, Phase 3 of the project are presented. The goals of Phase 3 are: (1) to further refine the rule base and complete the comparative rule base evaluation; (2) to implement and evaluate a concurrency testing prototype; (3) to convert the complete (unit-level and concurrency) testing prototype to a workstation environment; and (4) to provide a prototype development document to facilitate the transfer of research technology to a working environment. These goals were partially met and the results are summarized.

  12. Task-specific sensor settings for electro-optical systems in a marine environment

    NARCIS (Netherlands)

    Schwering, P.B.W.; Broek, S.P. van den; Kemp, R.A.W.; Lensen, H.A.

    2010-01-01

    Present-day naval operations take place in coastal environments as well as narrow straits all over the world. Coastal environments around the world are exhibiting a number of threats to naval forces. In particular, a large number of asymmetric threats can be present in environments with cluttered

  13. 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.

  14. Relationships among Individual Task Self-Efficacy, Self-Regulated Learning Strategy Use and Academic Performance in a Computer-Supported Collaborative Learning Environment

    Science.gov (United States)

    Wilson, Kimberly; Narayan, Anupama

    2016-01-01

    This study investigates relationships between self-efficacy, self-regulated learning strategy use and academic performance. Participants were 96 undergraduate students working on projects with three subtasks (idea generation task, methodical task and data collection) in a blended learning environment. Task self-efficacy was measured with…

  15. Planning organization and productivity simulation tool for maritime container terminals

    Directory of Open Access Journals (Sweden)

    B. Beškovnik

    2010-09-01

    Full Text Available The article describes a proposed planning organization and productivity simulation tool, with a special emphasis on orientations to the optimization of operations in a maritime container terminal. With the application of an adequate model frame for traffic and technical-technologic forecasting, infrastructure and manpower planning and productivity simulation are possible to measure and increase the productivity in the whole subsystem of the maritime container terminal. The emphasis is mainly put on setting up planning organization in order to collect important information and consequently to raise productivity. This is the main task and goal of terminal management that must develop elements and strategies for optimal operational and financial production. An adequate planning structure must use simplified but efficient simulation tools enabling owners and management to take a vast number of adequate financial and operational decisions. Considering all important and very dynamic facts in container and shipping industry, the proposed simulation tool gives a helpful instrument for checking productivity and its time variation and monitoring a competitive position of a certain maritime terminal with the terminals from the same group. Therefore, the management of every maritime container terminal must establish an appropriate internal planning system as a mechanism for strategic decision support relating basically to the assessment of the best development and optimization solutions for the infrastructure and suprastructure of the entire system.

  16. Estimation Accuracy on Execution Time of Run-Time Tasks in a Heterogeneous Distributed Environment

    Directory of Open Access Journals (Sweden)

    Qi Liu

    2016-08-01

    Full Text Available Distributed Computing has achieved tremendous development since cloud computing was proposed in 2006, and played a vital role promoting rapid growth of data collecting and analysis models, e.g., Internet of things, Cyber-Physical Systems, Big Data Analytics, etc. Hadoop has become a data convergence platform for sensor networks. As one of the core components, MapReduce facilitates allocating, processing and mining of collected large-scale data, where speculative execution strategies help solve straggler problems. However, there is still no efficient solution for accurate estimation on execution time of run-time tasks, which can affect task allocation and distribution in MapReduce. In this paper, task execution data have been collected and employed for the estimation. A two-phase regression (TPR method is proposed to predict the finishing time of each task accurately. Detailed data of each task have drawn interests with detailed analysis report being made. According to the results, the prediction accuracy of concurrent tasks’ execution time can be improved, in particular for some regular jobs.

  17. 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

  18. Maritime Interdiction Operations in Logistically Barren Environments

    Science.gov (United States)

    2008-06-01

    risk will be considered here. The risk to the personnel charged with operating the system of systems and the risk that a given system will not be...ionized using Ni63 or Am241.11 The ions are then gated into a drift tube. An electric field in the drift tube causes the ions to drift towards a...5% to 95% non-condensing.15 Other limitations include the need for a clean swab for every sample. There is also the limitation of the battery

  19. An Optical tracker for the maritime environment

    CSIR Research Space (South Africa)

    Bachoo, AK

    2011-04-01

    Full Text Available that is robust to platform vibration, target appearance changes and short-term occlusions. The optical tracker is developed using a particle filter and an appearance model that is updated online. The system achieves real-time tracking through the use of non...

  20. 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...

  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. The Maritime Potential of ASEAN Economies

    Directory of Open Access Journals (Sweden)

    Hans-Dieter Evers

    2011-01-01

    Full Text Available Countries may utilize a long coastline in relation to their landmass as a resource to develop their maritime economy. This paper argues that ASEAN countries differ in utilizing their maritime potential. As a basis for further comparative studies the Center for Policy Research and International Studies (CenPRIS in Penang developed a set of indicators to measure the maritime potential of nations, the state of their maritime industries, and the degree to which the maritime potential has actually been utilized. Using the CenPRIS Ocean Index (COI shows that Brunei and the Philippines have underutilized their maritime potentials, whereas Singapore and Thailand have made full use of it. Malaysia still has the potential to further develop its maritime economy.

  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. Charting a course to maritime excellence in South Africa

    CSIR Research Space (South Africa)

    Funke, Nicola S

    2017-10-01

    Full Text Available maritime culture and recognise and learn from our maritime history 1 Foster national maritime pride 3 Develop and communicate a co-authored discourse on South Africa’s maritime history 2 Support maritime historical and archaeological research, training... world-class education and training facilities 6 Build and retain skills in the maritime sector 2 Support and develop maritime-focused technology and innovation 7 Conduct humanities and social science research on pertinent issues 3 Create knowledge...

  5. Communicative task modeling and its practice on academic English learning in a web-based environment

    NARCIS (Netherlands)

    Chen, Jin; Cristea, A.I.; Okamoto, T.

    2003-01-01

    A web-based course for scholarly communicative language competence development via a distance tutoring system is presented. Particular focus is given to the description of the representation and organization of communicative tasks representing the subject matter knowledge in terms of

  6. An Efficient Framework for Development of Task-Oriented Dialog Systems in a Smart Home Environment

    Directory of Open Access Journals (Sweden)

    Youngmin Park

    2018-05-01

    Full Text Available In recent times, with the increasing interest in conversational agents for smart homes, task-oriented dialog systems are being actively researched. However, most of these studies are focused on the individual modules of such a system, and there is an evident lack of research on a dialog framework that can integrate and manage the entire dialog system. Therefore, in this study, we propose a framework that enables the user to effectively develop an intelligent dialog system. The proposed framework ontologically expresses the knowledge required for the task-oriented dialog system’s process and can build a dialog system by editing the dialog knowledge. In addition, the framework provides a module router that can indirectly run externally developed modules. Further, it enables a more intelligent conversation by providing a hierarchical argument structure (HAS to manage the various argument representations included in natural language sentences. To verify the practicality of the framework, an experiment was conducted in which developers without any previous experience in developing a dialog system developed task-oriented dialog systems using the proposed framework. The experimental results show that even beginner dialog system developers can develop a high-level task-oriented dialog system.

  7. An Efficient Framework for Development of Task-Oriented Dialog Systems in a Smart Home Environment.

    Science.gov (United States)

    Park, Youngmin; Kang, Sangwoo; Seo, Jungyun

    2018-05-16

    In recent times, with the increasing interest in conversational agents for smart homes, task-oriented dialog systems are being actively researched. However, most of these studies are focused on the individual modules of such a system, and there is an evident lack of research on a dialog framework that can integrate and manage the entire dialog system. Therefore, in this study, we propose a framework that enables the user to effectively develop an intelligent dialog system. The proposed framework ontologically expresses the knowledge required for the task-oriented dialog system's process and can build a dialog system by editing the dialog knowledge. In addition, the framework provides a module router that can indirectly run externally developed modules. Further, it enables a more intelligent conversation by providing a hierarchical argument structure (HAS) to manage the various argument representations included in natural language sentences. To verify the practicality of the framework, an experiment was conducted in which developers without any previous experience in developing a dialog system developed task-oriented dialog systems using the proposed framework. The experimental results show that even beginner dialog system developers can develop a high-level task-oriented dialog system.

  8. Comparing performance and situation awareness in USAR unit tasks in a virtual and real environment

    NARCIS (Netherlands)

    Horsch, C.H.G.; Smets, N.J.J.M.; Neerincx, M.A.; Cuijpers, R.H.

    2013-01-01

    A convenient way to test Urban Search And Rescue (USAR) robots would be in virtual environments (VEs). Evaluations in VEs are generally accepted as alternative for real scenarios. There are obvious differences between operation in a real and virtual environment. Nonetheless, the current experiment

  9. The nature of impulsivity: visual exposure to natural environments decreases impulsive decision-making in a delay discounting task.

    Directory of Open Access Journals (Sweden)

    Meredith S Berry

    Full Text Available The benefits of visual exposure to natural environments for human well-being in areas of stress reduction, mood improvement, and attention restoration are well documented, but the effects of natural environments on impulsive decision-making remain unknown. Impulsive decision-making in delay discounting offers generality, predictive validity, and insight into decision-making related to unhealthy behaviors. The present experiment evaluated differences in such decision-making in humans experiencing visual exposure to one of the following conditions: natural (e.g., mountains, built (e.g., buildings, or control (e.g., triangles using a delay discounting task that required participants to choose between immediate and delayed hypothetical monetary outcomes. Participants viewed the images before and during the delay discounting task. Participants were less impulsive in the condition providing visual exposure to natural scenes compared to built and geometric scenes. Results suggest that exposure to natural environments results in decreased impulsive decision-making relative to built environments.

  10. The effects of substitute multisensory feedback on task performance and the sense of presence in a virtual reality environment.

    Directory of Open Access Journals (Sweden)

    Natalia Cooper

    Full Text Available Objective and subjective measures of performance in virtual reality environments increase as more sensory cues are delivered and as simulation fidelity increases. Some cues (colour or sound are easier to present than others (object weight, vestibular cues so that substitute cues can be used to enhance informational content in a simulation at the expense of simulation fidelity. This study evaluates how substituting cues in one modality by alternative cues in another modality affects subjective and objective performance measures in a highly immersive virtual reality environment. Participants performed a wheel change in a virtual reality (VR environment. Auditory, haptic and visual cues, signalling critical events in the simulation, were manipulated in a factorial design. Subjective ratings were recorded via questionnaires. The time taken to complete the task was used as an objective performance measure. The results show that participants performed best and felt an increased sense of immersion and involvement, collectively referred to as 'presence', when substitute multimodal sensory feedback was provided. Significant main effects of audio and tactile cues on task performance and on participants' subjective ratings were found. A significant negative relationship was found between the objective (overall completion times and subjective (ratings of presence performance measures. We conclude that increasing informational content, even if it disrupts fidelity, enhances performance and user's overall experience. On this basis we advocate the use of substitute cues in VR environments as an efficient method to enhance performance and user experience.

  11. The effects of substitute multisensory feedback on task performance and the sense of presence in a virtual reality environment

    Science.gov (United States)

    Milella, Ferdinando; Pinto, Carlo; Cant, Iain; White, Mark; Meyer, Georg

    2018-01-01

    Objective and subjective measures of performance in virtual reality environments increase as more sensory cues are delivered and as simulation fidelity increases. Some cues (colour or sound) are easier to present than others (object weight, vestibular cues) so that substitute cues can be used to enhance informational content in a simulation at the expense of simulation fidelity. This study evaluates how substituting cues in one modality by alternative cues in another modality affects subjective and objective performance measures in a highly immersive virtual reality environment. Participants performed a wheel change in a virtual reality (VR) environment. Auditory, haptic and visual cues, signalling critical events in the simulation, were manipulated in a factorial design. Subjective ratings were recorded via questionnaires. The time taken to complete the task was used as an objective performance measure. The results show that participants performed best and felt an increased sense of immersion and involvement, collectively referred to as ‘presence’, when substitute multimodal sensory feedback was provided. Significant main effects of audio and tactile cues on task performance and on participants' subjective ratings were found. A significant negative relationship was found between the objective (overall completion times) and subjective (ratings of presence) performance measures. We conclude that increasing informational content, even if it disrupts fidelity, enhances performance and user’s overall experience. On this basis we advocate the use of substitute cues in VR environments as an efficient method to enhance performance and user experience. PMID:29390023

  12. The effects of substitute multisensory feedback on task performance and the sense of presence in a virtual reality environment.

    Science.gov (United States)

    Cooper, Natalia; Milella, Ferdinando; Pinto, Carlo; Cant, Iain; White, Mark; Meyer, Georg

    2018-01-01

    Objective and subjective measures of performance in virtual reality environments increase as more sensory cues are delivered and as simulation fidelity increases. Some cues (colour or sound) are easier to present than others (object weight, vestibular cues) so that substitute cues can be used to enhance informational content in a simulation at the expense of simulation fidelity. This study evaluates how substituting cues in one modality by alternative cues in another modality affects subjective and objective performance measures in a highly immersive virtual reality environment. Participants performed a wheel change in a virtual reality (VR) environment. Auditory, haptic and visual cues, signalling critical events in the simulation, were manipulated in a factorial design. Subjective ratings were recorded via questionnaires. The time taken to complete the task was used as an objective performance measure. The results show that participants performed best and felt an increased sense of immersion and involvement, collectively referred to as 'presence', when substitute multimodal sensory feedback was provided. Significant main effects of audio and tactile cues on task performance and on participants' subjective ratings were found. A significant negative relationship was found between the objective (overall completion times) and subjective (ratings of presence) performance measures. We conclude that increasing informational content, even if it disrupts fidelity, enhances performance and user's overall experience. On this basis we advocate the use of substitute cues in VR environments as an efficient method to enhance performance and user experience.

  13. Effects of training on short- and long-term skill retention in a complex multiple-task environment.

    Science.gov (United States)

    Sauer, J; Hockey, G R; Wastell, D G

    2000-12-01

    The paper reports the results of an experiment on the performance and retention of a complex task. This was a computer-based simulation of the essential elements of a spacecraft's life support system. It allowed the authors to take a range of measures, including primary and secondary task performance, system intervention and information sampling strategies, mental model structure, and subjective operator state. The study compared the effectiveness of two methods of training, based on low level (procedure-based) and high level (system-based) understanding. Twenty-five participants were trained extensively on the task, then given a 1-h testing session. A second testing session was carried out 8 months after the first (with no intervening practice) with 17 of the original participants. While training had little effect on control performance, there were considerable effects on system management strategies, as well as in structure of operator's mental model. In the second testing session, the anticipated general performance decrement did not occur, though for complex faults there was an increase in selectivity towards the primary control task. The relevance of the findings for training and skill retention in real work environments is discussed in the context of a model of compensatory control.

  14. QUEST/Ada (Query Utility Environment for Software Testing of Ada): The development of a prgram analysis environment for Ada, task 1, phase 2

    Science.gov (United States)

    Brown, David B.

    1990-01-01

    The results of research and development efforts are described for Task one, Phase two of a general project entitled The Development of a Program Analysis Environment for Ada. The scope of this task includes the design and development of a prototype system for testing Ada software modules at the unit level. The system is called Query Utility Environment for Software Testing of Ada (QUEST/Ada). The prototype for condition coverage provides a platform that implements expert system interaction with program testing. The expert system can modify data in the instrument source code in order to achieve coverage goals. Given this initial prototype, it is possible to evaluate the rule base in order to develop improved rules for test case generation. The goals of Phase two are the following: (1) to continue to develop and improve the current user interface to support the other goals of this research effort (i.e., those related to improved testing efficiency and increased code reliable); (2) to develop and empirically evaluate a succession of alternative rule bases for the test case generator such that the expert system achieves coverage in a more efficient manner; and (3) to extend the concepts of the current test environment to address the issues of Ada concurrency.

  15. 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

  16. 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... MARITIME SERVICES Global Maritime Distress and Safety System (GMDSS) General Provisions § 80.1069 Maritime... continuous DSC alerting is available as defined by the International Maritime Organization. (2) Sea area A2...

  17. 33 CFR 101.405 - Maritime Security (MARSEC) Directives.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Maritime Security (MARSEC... SECURITY MARITIME SECURITY MARITIME SECURITY: GENERAL Control Measures for Security § 101.405 Maritime... necessary to respond to a threat assessment or to a specific threat against the maritime elements of the...

  18. Use of the RoboFlag synthetic task environment to investigate workload and stress responses in UAV operation.

    Science.gov (United States)

    Guznov, Svyatoslav; Matthews, Gerald; Funke, Gregory; Dukes, Allen

    2011-09-01

    Use of unmanned aerial vehicles (UAVs) is an increasingly important element of military missions. However, controlling UAVs may impose high stress and workload on the operator. This study evaluated the use of the RoboFlag simulated environment as a means for profiling multiple dimensions of stress and workload response to a task requiring control of multiple vehicles (robots). It tested the effects of two workload manipulations, environmental uncertainty (i.e., UAV's visual view area) and maneuverability, in 64 participants. The findings confirmed that the task produced substantial workload and elevated distress. Dissociations between the stress and performance effects of the manipulations confirmed the utility of a multivariate approach to assessment. Contrary to expectations, distress and some aspects of workload were highest in the low-uncertainty condition, suggesting that overload of information may be an issue for UAV interface designers. The strengths and limitations of RoboFlag as a methodology for investigating stress and workload responses are discussed.

  19. Evaluation of social interaction, task management, and trust among dental hygiene students in a collaborative learning environment.

    Science.gov (United States)

    Saylor, Catherine D; Keselyak, Nancy T; Simmer-Beck, Melanie; Tira, Daniel

    2011-02-01

    The purpose of this study was to evaluate the impact of collaborative learning on the development of social interaction, task management, and trust in dental hygiene students. These three traits were assessed with the Teamwork Assessment Scale in two different learning environments (traditional lecture/lab and collaborative learning environment). A convenience sample of fifty-six entry-level dental hygiene students taking an introductory/preclinic course at two metropolitan area dental hygiene programs provided comparable experimental and control groups. Factor scores were computed for the three traits, and comparisons were conducted using the Ryan-Einot-Gabriel-Welsh multiple comparison procedure among specific cell comparisons generated from a two-factor repeated measures ANOVA. The results indicate that the collaborative learning environment influenced dental hygiene students positively regarding the traits of social interaction, task management, and trust. However, comparing dental hygiene students to undergraduate students overall indicates that dental hygiene students already possess somewhat higher levels of these traits. Future studies on active learning strategies should examine factors such as student achievement and explore other possible active learning methodologies.

  20. 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.

  1. 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...

  2. International research collaboration in maritime health

    DEFF Research Database (Denmark)

    Jensen, Olaf Chresten

    2011-01-01

    . 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......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...... 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....

  3. Transregional Threats and Maritime Security Cooperation

    Science.gov (United States)

    2017-08-01

    continue to grow. As of 2015, China’s coast guard had 205 ships, more than the combined coast guards of Japan, Vietnam, Indonesia, Malaysia , and the...raised the possibility of China assisting the Philippines in maritime security. • China has maritime security initiatives with Malaysia and...Pakistan. They have also conducted maritime safety drills with their Omani counterparts. In recent years, the IRIN has made efforts to operate well

  4. Maritime Geo-Fence Letter Report

    Science.gov (United States)

    2016-07-01

    1 Classification | CG-926 RDC | author | audience | month year Maritime Geo-Fence Letter Report Authors: Irene Gonin and Gregory...Johnson   Distribution Statement A: Approved for public release; distribution is unlimited. July 2016 Report No. CG-D-10-16 Maritime Geo-Fence...United States Coast Guard Research & Development Center 1 Chelsea Street New London, CT 06320 Maritime Geo-Fence Letter Report 1

  5. [Decision of mathematical logical tasks in sensory enriched environment (classical music)].

    Science.gov (United States)

    Pavlygina, R A; Karamysheva, N N; Tutushkina, M V; Sakharov, D S; Davydov, V I

    2012-01-01

    The time of a decision of mathematical logical tasks (MLT) was decreased during classical musical accompaniment (power 35 and 65 dB). Music 85 dB did not influence on the process of decision of MLT. Decision without the musical accompaniment led to increasing of coherent function values in beta1, beta2, gamma frequency ranges in EEG of occipital areas with prevalence in a left hemisphere. A coherence of potentials was decreased in EEG of frontal cortex. Music decreasing of making-decision time enhanced left-sided EEG asymmetry The intrahemispheric and the interhemispheric coherences of frontal cortex were increased during the decision of MLT accompanied by music. Using of musical accompaniment 85 dB produced a right-side asymmetry in EEG and formed a focus of coherent connections in EEG of temporal area of a right hemisphere.

  6. A Design for Maintaining Maritime Superiority. Version 1.0

    Science.gov (United States)

    2016-01-01

    this new environment. It’s a tremendously complex challenge. As we get underway, we must first understand our history - how we got to where we are...global force is the traffic on the oceans, seas, and waterways, including the sea floor – the classic maritime system. For millennia, the seas have...turn driving an accelerating rate of change – from music to medicine, from microfinance to missiles. 2 The third interrelated force is the

  7. 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...

  8. Orienting in virtual environments: How are surface features and environmental geometry weighted in an orientation task?

    Science.gov (United States)

    Kelly, Debbie M; Bischof, Walter F

    2008-10-01

    We investigated how human adults orient in enclosed virtual environments, when discrete landmark information is not available and participants have to rely on geometric and featural information on the environmental surfaces. In contrast to earlier studies, where, for women, the featural information from discrete landmarks overshadowed the encoding of the geometric information, Experiment 1 showed that when featural information is conjoined with the environmental surfaces, men and women encoded both types of information. Experiment 2 showed that, although both types of information are encoded, performance in locating a goal position is better if it is close to a geometrically or featurally distinct location. Furthermore, although features are relied upon more strongly than geometry, initial experience with an environment influences the relative weighting of featural and geometric cues. Taken together, these results show that human adults use a flexible strategy for encoding spatial information.

  9. Medical surgical nurses describe missed nursing care tasks-Evaluating our work environment.

    Science.gov (United States)

    Winsett, Rebecca P; Rottet, Kendra; Schmitt, Abby; Wathen, Ellen; Wilson, Debra

    2016-11-01

    The purpose of the study was to explore the nurse work environment by evaluating the self-report of missed nursing care and the reasons for the missed care. A convenience sample of medical surgical nurses from four hospitals was invited to complete the survey for this descriptive study. The sample included 168 nurses. The MISSCARE survey assessed the frequency and reason of 24 routine nursing care elements. The most frequently reported missed care was ambulation as ordered, medications given within a 30 minute window, and mouth care. Moderate or significant reasons reported for the missed care were: unexpected rise in volume/acuity, heavy admissions/discharges, inadequate assistants, inadequate staff, meds not available when needed, and urgent situations. Identifying missed nursing care and reasons for missed care provides an opportunity for exploring strategies to reduce interruptions, develop unit cohesiveness, improve the nurse work environment, and ultimately leading to improved patient outcomes. Copyright © 2016 Elsevier Inc. All rights reserved.

  10. 77 FR 28894 - Maritime Vulnerability Self-Assessment Tool

    Science.gov (United States)

    2012-05-16

    ... DEPARTMENT OF HOMELAND SECURITY Transportation Security Administration Maritime Vulnerability Self... 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...

  11. Virtual environment to quantify the influence of colour stimuli on the performance of tasks requiring attention

    OpenAIRE

    Frère Annie F; Silva Alessandro P

    2011-01-01

    Abstract Background Recent studies indicate that the blue-yellow colour discrimination is impaired in ADHD individuals. However, the relationship between colour and performance has not been investigated. This paper describes the development and the testing of a virtual environment that is capable to quantify the influence of red-green versus blue-yellow colour stimuli on the performance of people in a fun and interactive way, being appropriate for the target audience. Methods An interactive c...

  12. Maritime Security – The Need for a Global Agreement

    OpenAIRE

    Dinos Stasinopoulos

    2003-01-01

    This note reviews US maritime security measures, outlines work carried out by international organisations and then frames maritime security within the wider context of maritime trade. Finally, it suggests the development of a Global Agreement linking security and other maritime trade-related issues. The initiative for such an agreement should be undertaken by the EU only if current International Maritime Organisation (IMO) efforts fail to produce a maritime security framework with binding req...

  13. Postural Control in Children with Dyslexia: Effects of Emotional Stimuli in a Dual-Task Environment.

    Science.gov (United States)

    Goulème, Nathalie; Gerard, Christophe-Loïc; Bucci, Maria Pia

    2017-08-01

    The aim of this study was to compare the visual exploration strategies used during a postural control task across participants with and without dyslexia. We simultaneously recorded eye movements and postural control while children were viewing different types of emotional faces. Twenty-two children with dyslexia and twenty-two aged-matched children without dyslexia participated in the study. We analysed the surface area, the length and the mean velocity of the centre of pressure for balance in parallel with visual saccadic latency, the number of saccades and the time spent in regions of interest. Our results showed that postural stability in children with dyslexia was weaker and the surface area of their centre of pressure increased significantly when they viewed an unpleasant face. Moreover, children with dyslexia had different strategies to those used by children without dyslexia during visual exploration, and in particular when they viewed unpleasant emotional faces. We suggest that lower performance in emotional face processing in children with dyslexia could be due to a difference in their visual strategies, linked to their identification of unpleasant emotional faces. Copyright © 2017 John Wiley & Sons, Ltd. Copyright © 2017 John Wiley & Sons, Ltd.

  14. 33 CFR 103.310 - Responsibilities of the Area Maritime Security (AMS) Committee.

    Science.gov (United States)

    2010-07-01

    ... disseminating appropriate security information to port stakeholders. ... Maritime Security (AMS) Committee. 103.310 Section 103.310 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: AREA MARITIME SECURITY Area Maritime...

  15. How Have European Union Regulation Tools on Maritime Safety Developed After the Prestige Catastrophe? A Special Reference to Spain

    Directory of Open Access Journals (Sweden)

    Fernando González Laxe

    2005-06-01

    Full Text Available Maritime transport (specially when it comes to carrying hydrocarbons and dangerous products is included in the economic globalisation process. The Prestige accident in the Galician coast, Spain, has shown the existence of significant failures on part of both the market and the public sector, which leads to conclude that maritime security should be considered as a global public good. Consequently, this paper shows the advances and the still unfinished tasks according to the aforementioned view, mainly in the European Union.

  16. Engaging Environments Enhance Motor Skill Learning in a Computer Gaming Task.

    Science.gov (United States)

    Lohse, Keith R; Boyd, Lara A; Hodges, Nicola J

    2016-01-01

    Engagement during practice can motivate a learner to practice more, hence having indirect effects on learning through increased practice. However, it is not known whether engagement can also have a direct effect on learning when the amount of practice is held constant. To address this question, 40 participants played a video game that contained an embedded repeated sequence component, under either highly engaging conditions (the game group) or mechanically identical but less engaging conditions (the sterile group). The game environment facilitated retention over a 1-week interval. Specifically, the game group improved in both speed and accuracy for random and repeated trials, suggesting a general motor-related improvement, rather than a specific influence of engagement on implicit sequence learning. These data provide initial evidence that increased engagement during practice has a direct effect on generalized learning, improving retention and transfer of a complex motor skill.

  17. The Relationships among Students' Future-Oriented Goals and Subgoals, Perceived Task Instrumentality, and Task-Oriented Self-Regulation Strategies in an Academic Environment

    Science.gov (United States)

    Tabachnick, Sharon E.; Miller, Raymond B.; Relyea, George E.

    2008-01-01

    The authors performed path analysis, followed by a bootstrap procedure, to test the predictions of a model explaining the relationships among students' distal future goals (both extrinsic and intrinsic), their adoption of a middle-range subgoal, their perceptions of task instrumentality, and their proximal task-oriented self-regulation strategies.…

  18. 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...

  19. 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…

  20. The Irish Maritime Transport Economist Volume 3

    OpenAIRE

    Office, Irish Maritime Development

    2006-01-01

    The Irish Maritime Development Office (IMDO) of the Marine Institute publishes the Irish Maritime Transport Economist each year to provide a descriptive statistical analysis of the Irish ports and shipping services sector, as well as the many factors influencing its performance.

  1. The Irish Maritime Transport Economist Volume 4

    OpenAIRE

    Office, Irish Maritime Development

    2007-01-01

    The Irish Maritime Development Office (IMDO) of the Marine Institute publishes the Irish Maritime Transport Economist each year to provide a descriptive statistical analysis of the Irish ports and shipping services sector, as well as the many factors influencing its performance.

  2. An automation of design and modelling tasks in NX Siemens environment with original software - cost module

    Science.gov (United States)

    Zbiciak, R.; Grabowik, C.; Janik, W.

    2015-11-01

    The design-constructional process is a creation activity which strives to fulfil, as well as it possible at the certain moment of time, all demands and needs formulated by a user taking into account social, technical and technological advances. Engineer knowledge and skills and their inborn abilities have the greatest influence on the final product quality and cost. They have also deciding influence on product technical and economic value. Taking into account above it seems to be advisable to make software tools that support an engineer in the process of manufacturing cost estimation. The Cost module is built with analytical procedures which are used for relative manufacturing cost estimation. As in the case of the Generator module the Cost module was written in object programming language C# in Visual Studio environment. During the research the following eight factors, that have the greatest influence on overall manufacturing cost, were distinguished and defined: (i) a gear wheel teeth type it is straight or helicoidal, (ii) a gear wheel design shape A, B with or without wheel hub, (iii) a gear tooth module, (iv) teeth number, (v) gear rim width, (vi) gear wheel material, (vii) heat treatment or thermochemical treatment, (viii) accuracy class. Knowledge of parameters (i) to (v) is indispensable for proper modelling of 3D gear wheels models in CAD system environment. These parameters are also processed in the Cost module. The last three parameters it is (vi) to (viii) are exclusively used in the Cost module. The estimation of manufacturing relative cost is based on indexes calculated for each particular parameter. Estimated in this way the manufacturing relative cost gives an overview of design parameters influence on the final gear wheel manufacturing cost. This relative manufacturing cost takes values from 0.00 to 1,00 range. The bigger index value the higher relative manufacturing cost is. Verification whether the proposed algorithm of relative manufacturing

  3. Learning to be a midwife in the clinical environment; tasks, clinical practicum hours or midwifery relationships.

    Science.gov (United States)

    Ebert, Lyn; Tierney, Olivia; Jones, Donovan

    2016-01-01

    Discussions continue within the midwifery profession around the number of and type of clinical experiences required to ensure competent midwifery graduates. Introduction of the three year Bachelor of Midwifery in Australia, almost two decades ago, was intended to reduce the pressure students were under to complete their academic requirements whilst ensuring students developed midwifery practice that encapsulates the philosophical values of midwifery. Currently, midwifery students are mandated to achieve a minimum number of clinical skills and Continuity of Care Experience (CCE) relationships in order to register upon completion of their degree. To achieve these experiences, universities require students to complete a number of clinical practicum hours. Furthermore students are required to demonstrate competent clinical performance of a number of clinical skills. However, there is no evidence to date that a set number of experiences or hours ensures professional competence in the clinical environment. The aim of this paper is to promote discussion regarding the mandated requirements for allocated clinical practicum hours, specified numbers of clinical-based skills and CCE relationships in the context of learning to be a midwife in Australia. Copyright © 2015 Elsevier Ltd. All rights reserved.

  4. Overview and outlook for Maritime markets

    International Nuclear Information System (INIS)

    Kirstiuk, S.

    1998-01-01

    The potential of the Maritime provinces as being among the world leaders in manufacturing and value-added resource processing, low unemployment and steady economic growth was explored. Irving Oil and J.D. Irving Ltd., have actively participated in supporting the Sable Offshore Energy Project and Maritimes and Northeast Projects because of the promise of tremendous economic benefits the projects will have on the Maritime provinces. It was predicted that the projects will create thousands of jobs in Nova Scotia and New Brunswick, but more importantly, they will make the region more cost-effective and more competitive in the global markets. The Sable offshore project will allow Maritimers to compete internationally on a level playing field. With gas becoming available in the region, the opportunity exists to generate electricity at lower costs using natural gas turbines and co-generation facilities. Cheaper electricity will create new opportunities for further industrial expansion, more jobs and a stronger economy for the Maritime provinces

  5. United States Coast Guard Antisubmarine Warfare (ASW) in the Maritime Defense Zone (MDZ) - A Strategic Approach

    Science.gov (United States)

    1989-03-01

    RIC ILE COPY AIR WAR COLLGE REEAC R~pCR UNITED STATES COAST GUARD ANTISUBMARINE WARFARE (ASW) IN THE MARITIME DEFENSE ZONE (MDZ) -A STRATEGIC...going to perform in these MDZs. Those tasks identified so far include: port and coastal physical security & preventive safety, mine warfare

  6. ERP Human Enhancement Progress Report : Use case and computational model for adaptive maritime automation

    NARCIS (Netherlands)

    Kleij, R. van der; Broek, J. van den; Brake, G.M. te; Rypkema, J.A.; Schilder, C.M.C.

    2015-01-01

    Automation is often applied in order to increase the cost-effectiveness, reliability and safety of maritime ship and offshore operations. Automation of operator tasks, has not, however, eliminated human error so much as created opportunities for new kinds of error. The ambition of the Adaptive

  7. Safe school task force: University-community partnership to promote student development and a safer school environment.

    Science.gov (United States)

    Adler, Corey; Chung-Do, Jane; Ongalibang, Ophelia

    2008-01-01

    The Asian/Pacific Islander Youth Violence Prevention Center (APIYVPC) focuses its youth violence prevention efforts on community mobilization by partnering with Kailua High School and other local community groups. This paper describes the development and activities of the Safe School Task Force (SSTF) and the lessons learned. In response to concerns of school, community members, and students, the SSTF was organized to promote student leadership in raising awareness about problems related to violence. Collaboration among the school, community, and the university places students in leadership roles to reduce school violence and enhances their self-efficacy to improve their school environment. To increase SSTF effectiveness, more attention must be paid to student recruitment, consistent community partnerships, and gaining teacher buy-in. This partnership may be useful in multicultural communities to provide students the opportunities to learn about violence prevention strategies, community mobilization, and leadership skills.

  8. Maritime Interdiction Operations Small Craft Detection

    International Nuclear Information System (INIS)

    Dougan, A.D.; Trombino, D.; Dunlop, W.; Bordetsky, A.

    2010-01-01

    The Naval Postgraduate School has been conducting Tactical Network Topology (TNT) Maritime Interdiction Operations (MIO) experiments with Lawrence Livermore National Laboratory (LLNL) since early in 2005. In this work, we are investigating cutting edge technology to evaluate use of networks, advanced sensors and collaborative technology for globally-supported maritime interdiction operations. Some examples of our research include communications in harsh environments, between moving ships at sea; small boat drive-by radiation detection; network-centric collaboration with global partners; situational awareness; prototype sensors and biometric instruments. Since 2006, we have studied the concept of using a small vessel with fixed radiation sensors to do initial searches for illicit radioactive materials. In our work, we continue to evaluate concepts of operation for small boat monitoring. For example, in San Francisco Bay we established a simulated choke point using two RHIBs. Each RHIB had a large sodium iodide radiation sensor on board, mounted on the side nearest to the passing potential target boats. Once detections were made, notification over the network prompted a chase RHIB also equipped with a radiation sensor to further investigate the potential target. We have also used an unmanned surface vessel (USV) carrying a radiation sensor to perform the initial discovery. The USV was controlled remotely and to drive by boats in different configurations. The potential target vessels were arranged in a line, as a choke point and randomly spaced in the water. Search plans were problematic when weather, waves and drift complicated the ability to stay in one place. A further challenge is to both detect and identify the radioactive materials during the drive-by. Our radiation detection system, ARAM, Adaptable Radiation Area Monitor, is able to detect, alarm and quickly identify plausible radionuclides in real time. We have performed a number of experiments to better

  9. 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.

  10. 32 CFR 536.117 - Statutory authority for maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Statutory authority for maritime claims. 536.117... ACCOUNTS CLAIMS AGAINST THE UNITED STATES Maritime Claims § 536.117 Statutory authority for maritime claims. The Army Maritime Claims Settlement Act (AMCSA) (10 U.S.C. 4801-04, 4806, as amended) authorizes the...

  11. 32 CFR 536.118 - Related statutes for maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Related statutes for maritime claims. 536.118... ACCOUNTS CLAIMS AGAINST THE UNITED STATES Maritime Claims § 536.118 Related statutes for maritime claims... under the AMCSA is not mandatory for causes of action as it is for the SIAA or PVA. (b) Similar maritime...

  12. 32 CFR 536.120 - Claims payable as maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Claims payable as maritime claims. 536.120... ACCOUNTS CLAIMS AGAINST THE UNITED STATES Maritime Claims § 536.120 Claims payable as maritime claims. A claim is cognizable under this subpart if it arises in or on a maritime location, involves some...

  13. 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... claims for damage to: (1) DA-accountable properties of a kind that are within the federal maritime...

  14. 33 CFR 104.145 - Maritime Security (MARSEC) Directive.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Maritime Security (MARSEC) Directive. 104.145 Section 104.145 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: VESSELS General § 104.145 Maritime Security (MARSEC...

  15. 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...) Damage that is maritime in nature and caused by tortious conduct of U.S. military personnel or federal...

  16. 33 CFR 105.145 - Maritime Security (MARSEC) Directive.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Maritime Security (MARSEC) Directive. 105.145 Section 105.145 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: FACILITIES General § 105.145 Maritime Security (MARSEC...

  17. 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...

  18. Routing of platforms in a maritime surface surveillance operation

    NARCIS (Netherlands)

    Grob, M.J.H.B.

    2006-01-01

    Maritime surface surveillance is the process of obtaining and maintaining information about surface ships in a certain sea area. It is carried out by maritime platforms such as frigates, helicopters or maritime patrol aircraft. Surface surveillance plays a vital role in maritime operations like

  19. 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.

  20. Maritime English as a code-tailored ESP: Genre-based curriculum development as a way out

    Directory of Open Access Journals (Sweden)

    Yan Zhang

    2018-04-01

    Full Text Available Maritime English (ME, as a type of English for Specific Purposes (ESP, is somewhat different in that its instruction and research are founded on specific international legal procedures. Thus, it is vital to determine an ESP framework that bridges the code-tailored ME curriculum development with the communicative language teaching approach. This paper reports on the revision of the International Maritime Organization (IMO’s Model Course 3.17, Maritime English, where an integrated genre-based ESP framework helps to achieve the balance between language learning’s “wide-angled” quality and ME’s legal consistency. It is argued that code-tailored ME competences find expressions in maritime domain-specific genres; those are the typical sets of English communicative events that seafarers are involved in while achieving their maritime professional objectives. The curriculum can be designed as to integrate linguistic systems, professional motivation and behaviors, communicative skills and cultural awareness into the teaching process, which entails a process of learning Maritime English while taking maritime domain-specific action. Specifically, the principle of genre as social action apprises the two-stage syllabus mapping, that is, General Maritime English (GME and Specialized Maritime English (SME. In GME, the focus is placed on the linguistic content and how language tasks embedded in the maritime contexts are fulfilled; in SME, the focus is placed on the professional content and how the maritime workplace duties and identities are fulfilled through the English language. As such, syllabus mapping calculates the discursion-profession correlation and helps to ensure that code-tailored ME teaching is communicative performance-oriented. Thus, the multi-syllabus task design and content selection must consistently maintain the genre-based balance on the linguistic-communicative continuum. As a result, the English linguistic systems underlying the

  1. 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.

  2. 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.

  3. The maritime transport of nuclear substances

    International Nuclear Information System (INIS)

    Los Santos, A. de; Corretjer, L.

    1976-01-01

    In view of the fact that the regulation of maritime transport of nuclear materials comes under both maritime and nuclear law has raised problems which it was attempted to solve by specific standards. As regards the prevention of nuclear hazards, these standards are based on the recommendations of competent international organizations, while concerning compensation of nuclear damage, a Convention which has just come into force lays down that nuclear law has priority over maritime law. Despite the progress made, a study of the situation in this field shows that it can be further improved. (N.E.A.) [fr

  4. Maritime cleantech entrepreneurship in Frederikshavn, Denmark

    DEFF Research Database (Denmark)

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

    2012-01-01

    The demand on maritime cleantech may increase as result new regulations on maritime source air pollutants by International Maritime Organization and the European Union. As result, the demands will also increase for ship retrofit and cleantech installations. Such opportunities may be triggered...... in access to and best use of information. Furthermore, access to information can result from active search, alertness to opportunities, and entrepreneur's previous experience. The Frederikshavn case study may add a fourth element: access to information can result from the facilitation provided...

  5. 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

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Statutory authority for maritime claims and 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...

  6. Transnucleaire's experience in maritime transportation

    International Nuclear Information System (INIS)

    Vallette-Fontaine, M.

    1998-01-01

    Since the INF code requirement has been implemented in early 1995 laying down stringent requirements for ships transporting irradiated nuclear fuel, plutonium and high level radioactive waste, Transnucleaire has upgraded and operates two sister ships belonging a CMN shipping company and is well involved in the maritime transportation of radioactive materials. This paper aims at analysing the various principles implemented by Transnucleaire: operate ships such as Bouguenais and Beaulieu in compliance will all existing regulations such as INF Code, Japanese KAISA...; keep the sea transportation of nuclear material at affordable price for all nuclear organizations especially those involved in research activities; avoid for non routine transports, the use of nuclear dedicated ships often precluded by its high costs; adapt the means to all possible evolutions, i.e. be prepared to offer improved ships to satisfy all the scale of requirements; find optimised technical solutions to comply with Japanese type B ship regulations at a reasonable cost. (authors)

  7. Non-physical practice improves task performance in an unstable, perturbed environment: Motor imagery and observational balance training

    Directory of Open Access Journals (Sweden)

    Wolfgang eTaube

    2014-12-01

    Full Text Available For consciously performed motor tasks executed in a defined and constant way, both motor imagery (MI and action observation (AO have been shown to promote motor learning. It is not known whether these forms of non-physical training also improve motor actions when these actions have to be variably applied in an unstable and unpredictable environment. The present study therefore investigated the influence of MI balance training (MI_BT and a balance training combining AO and MI (AO+MI_BT on postural control of undisturbed and disturbed upright stance on unstable ground. As spinal reflex excitability after classical (i.e., physical balance training (BT is generally decreased, we tested whether non-physical BT also has an impact on spinal reflex circuits. Thirty-six participants were randomly allocated into an MI_BT group, in which participants imagined postural exercises, an AO+MI_BT group, in which participants observed videos of other people performing balance exercises and imagined being the person in the video, and a non-active control group (CON. Before and after 4 weeks of non-physical training, balance performance was assessed on a free-moving platform during stance without perturbation and during perturbed stance. Soleus H-reflexes were recorded during stable and unstable stance. The post measurement revealed significantly decreased postural sway during undisturbed and disturbed stance after both MI_BT and AO+MI_BT. Spinal reflex excitability remained unchanged. This is the first study showing that non-physical training (MI_BT and AO+MI_BT not only promotes motor learning of ‘rigid’ postural tasks but also improves performance of highly variable and unpredictable balance actions. These findings may be relevant to improve postural control and thus reduce the risk of falls in temporarily immobilized patients.

  8. SITREP: The NPS Maritime Defense and Security Research Program Newsletter ; v. 48 (July-August 2010)

    OpenAIRE

    2010-01-01

    This issue of The NPS Maritime Domain Protection Newsletter includes information on The Technology Cooperation Program (TTCP) Maritime (MAR), RAND Corporation Maritime Programs, Librarians Corner, and Future Events.

  9. Maritime interception and the law of naval operations: A study of legal bases and legal regimes in maritime interception operations, in particular conducted outside the sovereign waters of a State and in the context of international peace and security

    OpenAIRE

    Fink, M.D.

    2016-01-01

    This thesis is divided into four parts. Part I consists of a general introduction and will start with a brief sketch of the context of naval operations to better understand operational environment in which maritime interception operations are used (Chapter 2), and will also address contemporary maritime interception operations by means of a short history of the evolution of the term MIO in four strands (Chapter 3). This chapter will also introduce significant naval operations and incidents th...

  10. 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.

  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. 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 ...

  13. 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...

  14. Maritime archaeology of the Okhamandal region, Gujarat

    Digital Repository Service at National Institute of Oceanography (India)

    Sundaresh; Gaur, A.S.; Tripati, S.

    to confirm that Okha mandal was a well established industrial place with a flourishing harbour at Bet Dwarka which was having international contacts and must have played critical role in developing the region with the maritime connection....

  15. 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...

  16. Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Task 4 Report: Virtual Mockup Maintenance Task Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Timothy Shaw; Anthony Baratta; Vaughn Whisker

    2005-02-28

    Task 4 report of 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. This report focuses on using Full-scale virtual mockups for nuclear power plant training applications.

  17. Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Task 4 Report: Virtual Mockup Maintenance Task Evaluation

    International Nuclear Information System (INIS)

    Timothy Shaw; Anthony Baratta; Vaughn Whisker

    2005-01-01

    Task 4 report of 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. This report focuses on using Full-scale virtual mockups for nuclear power plant training applications

  18. 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.

  19. Gaze Behavior in a Natural Environment with a Task-Relevant Distractor: How the Presence of a Goalkeeper Distracts the Penalty Taker

    Directory of Open Access Journals (Sweden)

    Johannes Kurz

    2018-01-01

    Full Text Available Gaze behavior in natural scenes has been shown to be influenced not only by top–down factors such as task demands and action goals but also by bottom–up factors such as stimulus salience and scene context. Whereas gaze behavior in the context of static pictures emphasizes spatial accuracy, gazing in natural scenes seems to rely more on where to direct the gaze involving both anticipative components and an evaluation of ongoing actions. Not much is known about gaze behavior in far-aiming tasks in which multiple task-relevant targets and distractors compete for the allocation of visual attention via gaze. In the present study, we examined gaze behavior in the far-aiming task of taking a soccer penalty. This task contains a proximal target, the ball; a distal target, an empty location within the goal; and a salient distractor, the goalkeeper. Our aim was to investigate where participants direct their gaze in a natural environment with multiple potential fixation targets that differ in task relevance and salience. Results showed that the early phase of the run-up seems to be driven by both the salience of the stimulus setting and the need to perform a spatial calibration of the environment. The late run-up, in contrast, seems to be controlled by attentional demands of the task with penalty takers having habitualized a visual routine that is not disrupted by external influences (e.g., the goalkeeper. In addition, when trying to shoot a ball as accurately as possible, penalty takers directed their gaze toward the ball in order to achieve optimal foot-ball contact. These results indicate that whether gaze is driven by salience of the stimulus setting or by attentional demands depends on the phase of the actual task.

  20. Implementation of a three degree of freedom, motor/brake hybrid force output device for virtual environment control tasks

    Science.gov (United States)

    Russo, Massimo; Tadros, Alfred; Flowers, Woodie; Zeltzer, David

    1991-01-01

    The advent of high resolution, physical model based computer graphics has left a gap in the design of input/output technology appropriate for interacting with such complex virtual world models. Since virtual worlds consist of physical models, it is appropriate to output the inherent force information necessary for the simulation to the user. The detailed design, construction, and control of a three degree freedom force output joystick will be presented. A novel kinematic design allows all three axes to be uncoupled, so that the system inertia matrix is diagonal. The two planar axes are actuated through an offset gimbal, and the third through a sleeved cable. To compensate for friction and inertia effects, this transmission is controlled by a force feedforward and a closed force feedback proportional loop. Workspace volume is a cone of 512 cubic inches, and the device bandwidth is maximized at 60 Hz for the two planar and 30 Hz for the third axis. Each axis is controlled by a motor/proportional magnetic particle brake combination fixed to the base. The innovative use of motors and brakes allows objects with high resistive torque requirements to be simulated without the stability and related safety issues involved with high torque, energy storing motors alone. Position, velocity, and applied endpoint force are sensed directly. Different control strategies are discussed and implemented, with an emphasis on how virtual environment force information, generated by the MIT Media Lab Computer Graphics and Animation Group BOLIO system, is transmitted to the device controller. The design constraints for a kinesthetic force feedback device can be summarized as: How can the symbiosis between the sense of presence in the virtual environment be maximized without compromising the interaction task under the constraints of the mechanical device limitations? Research in this field will yield insights to the optimal human sensory feedback mix for a wide spectrum of control and

  1. Self-learning framework with temporal filtering for robust maritime vessel detection

    NARCIS (Netherlands)

    Ghahremani, A.; Bondarau, Y.; de With, P.H.N.

    2017-01-01

    With the recent development in ConvNet-based detectors, a successful solution for vessel detection becomes possible. However, it is essential to access a comprehensive annotated training set from different maritime environments. Creating such a dataset is expensive and time consuming. To automate

  2. Maritime target and sea clutter measurements with a coherent Doppler polarimetric surveillance radar

    NARCIS (Netherlands)

    Smith, A.J.E.; Gelsema, S.J.; Kester, L.J.H.M.; Melief, H.W.; Premel Cabic, G.; Theil, A.; Woudenberg, E.

    2002-01-01

    Doppler polarimetry in a surveillance radar for the maritime surface picture is considered. This radar must be able to detect low-RCS targets in littoral environments. Measurements on such targets have been conducted with a coherent polarimetric measurement radar in March 2001 and preliminary

  3. Scenario analysis and disaster preparedness for port and maritime logistics risk management.

    Science.gov (United States)

    Kwesi-Buor, John; Menachof, David A; Talas, Risto

    2016-08-01

    System Dynamics (SD) modelling is used to investigate the impacts of policy interventions on industry actors' preparedness to mitigate risks and to recover from disruptions along the maritime logistics and supply chain network. The model suggests a bi-directional relation between regulation and industry actors' behaviour towards Disaster Preparedness (DP) in maritime logistics networks. The model also showed that the level of DP is highly contingent on forecast accuracy, technology change, attitude to risk prevention, port activities, and port environment. Copyright © 2016 Elsevier Ltd. All rights reserved.

  4. Conception of the Maritime Transport Safety in the Baltic Sea in 2009 to 2015

    Directory of Open Access Journals (Sweden)

    Caban Jacek

    2017-11-01

    Full Text Available The maritime transport is particularly exposed to danger due to the environment of its operations. These are the threat dependent and independent of human e.g. environmental, safety health and life of humans or belongings. In spite of attempts to limit the risk of danger, it is impossible to completely eliminate it. The article presents some aspects of the state of transportation safety in the Baltic Sea from Statistical Yearbook of Maritime Economy and Helcom as well as attempt the undertaken to analyses the security state of this sea area in 2009 to 2015.

  5. 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.

  6. Research and development of technologies for safe and environmentally optimal recovery and disposal of explosive wastes. Task 2, Preliminary impact assessment for environment, health and safety (EIA)

    Energy Technology Data Exchange (ETDEWEB)

    Duijm, N.J.; Markert, F. [Risoe (Denmark); Larsen, S.G. [DEMEX A/S (Denmark)

    1998-09-01

    As described in the project proposal `Research and Development of Technologies for Safe and Environmentally optimal recovery and Disposal of Explosive Wastes`, dated 31. May 1996, the objective of Task 2, Preliminary Impact Assessment for Environment, Health and Safety, is to: Analyse the environmental impact of noise and emissions to air, water and soil; Assess the risk of hazards to workers` health and safety and to the public. Task 2, Preliminary Impact Assessment for Environment, Health and Safety (EIA), has been performed from August 1997 to September 1998. First, a methodology has been established, based on Multi-Criteria Decision Analysis (MCDA), to select the `best` technology on the basis of clearly defined objectives, including minimal impacts on environment, health and safety. This included a review of different types of explosive waste with a focus on the environment implications, identifying the issues relevant to defining the criteria or objectives with respect to environment and safety in the framework of explosive waste, as well as the preliminary definition of objectives for the final impact assessment. Second, the previously identified recovery and disposal technologies (Task 1) have been qualitatively assessed on the basis of the relevant objectives. This qualitative assessment includes also economic considerations and an attempt to rank the technologies in an MCDA framework. (au)

  7. 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......—the International Maritime Organization. Drawing on original empirical evidence and archival data, we introduce a four-factor framework to investigate two main questions: why is shipping lagging in its environmental governance; and what is the potential for the International Maritime Organization to orchestrate......, and growing regulatory fragmentation and uncertainty. The paper concludes with pragmatic recommendations for the International Maritime Organization to acknowledge the regulatory difficulties and seize the opportunity to orchestrate environmental progress....

  8. Older Adults Pay an Additional Cost When Texting and Walking: Effects of Age, Environment, and Use of Mixed Reality on Dual-Task Performance.

    Science.gov (United States)

    Krasovsky, Tal; Weiss, Patrice L; Kizony, Rachel

    2018-04-06

    Texting while walking (TeWW) has become common among people of all ages, and mobile phone use during gait is increasingly associated with pedestrian injury. Although dual-task walking performance is known to decline with age, data regarding the effect of age on dual-task performance in ecological settings are limited. The objective of this study was to evaluate the effect of age, environment (indoors/outdoors), and mixed reality (merging of real and virtual environments) on TeWW performance. A cross-sectional design was used. Young (N = 30; 27.8 ± 4.4 years) and older (N = 20; 68.9 ± 3.9 years) adults performed single and dual-task texting and walking indoors and outdoors, with and without a mixed reality display. Participants also completed evaluations of visual scanning and cognitive flexibility (Trail Making Test) and functional mobility (Timed Up and Go). Indoors, similar interference to walking and texting occurred for both groups, but only older adults' gait variability increased under dual task conditions. Outdoors, TeWW was associated with larger age-related differences in gait variability, texting accuracy, and gait dual-task costs. Young adults with better visual scanning and cognitive flexibility performed TeWW with lower gait costs (r = 0.52 to r = 0.65). The mixed reality display was unhelpful and did not modify walking or texting. Older adults tested in this study were relatively high-functioning. Gaze of participants was not directly monitored. Although young and older adults possess the resources necessary for TeWW, older adults pay an additional "price" when dual-tasking, especially outdoors. TeWW may have potential as an ecologically-valid assessment and/or an intervention paradigm for dual task performance among older adults as well as for clinical populations.

  9. 78 FR 42101 - Boston Area Maritime Security Advisory Committee; Vacancies

    Science.gov (United States)

    2013-07-15

    ... the Captain of the Port in the development, review, update, and exercising of the Area Maritime..., including labor; other port stakeholders having a special competence in maritime security; and port...

  10. 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

  11. Liability in maritime transport of dangerous goods

    International Nuclear Information System (INIS)

    Feldhaus, H.

    1985-01-01

    The first part contains a description of national liability standards for maritime transport in the French, English, US-American and West German legislation. This is followed up by a detailed review of the existing international agreements. The book is rounded off by a critical evaluation of the presently held discussion and suggested solutions on the problems of liability in the maritime transport of dangerous goods other than mineral oil. The author takes a close look at the 'Entwurf eines Internationalen Uebereinkommens ueber die Haftung und den Schadenersatz bei der Befoerderung schaedlicher und gefaehrlicher Stoffe auf See' ('draft of an international agreement on liability and compensation for damage in maritime transport of noxious and dangerous goods') in the version of May 23, 1983, which was discussed on an international diplomat's conference in London without however, yielding any concrete results. (orig./HP) [de

  12. Development and evaluation of the Stingray, an amphibious maritime interdiction operations unmanned ground vehicle

    Science.gov (United States)

    Nguyen, Hoa G.; Castelli, Robin

    2014-06-01

    The U.S. Navy and Marine Corps conduct thousands of Maritime Interdiction Operations (MIOs) every year around the globe. Navy Visit, Board, Search, and Seizure (VBSS) teams regularly board suspect ships and perform search operations, often in hostile environments. There is a need for a small tactical robot that can be deployed ahead of the team to provide enhanced situational awareness in these boarding, breaching, and clearing operations. In 2011, the Space and Naval Warfare Systems Center Pacific conducted user evaluations on a number of small throwable robots and sensors, verified the requirements, and developed the key performance parameters (KPPs) for an MIO robot. Macro USA Corporation was then tasked to design and develop two prototype systems, each consisting of one control/display unit and two small amphibious Stingray robots. Technical challenges included the combination paddle wheel/shock-absorbing wheel, the tradeoff between impact resistance, size, and buoyancy, and achieving adequate traction on wet surfaces. This paper describes the technical design of these robots and the results of subsequent user evaluations by VBSS teams.

  13. Effects of the Use of Social Network Sites on Task Performance: Toward a Sustainable Performance in a Distracting Work Environment

    Directory of Open Access Journals (Sweden)

    Jinyoung Min

    2017-12-01

    Full Text Available As the use of social network sites (SNS has become increasingly prevalent, its effect on sustainable performance has received much attention. The existing literature has taken either a positive or negative view of SNS, arguing that it either decreases performance by taking time and effort away from work, or increases performance by providing social benefits for enhancing performance. In contrast, this experimental study, investigates how SNS use can disturb or enhance the performance of different types of tasks differently, thus influencing the sustainability of task performance. Based on distraction-conflict theory, this study distinguishes between simple and complex tasks, examines the role of SNS, and analyzes data including electroencephalography data captured by a brain-computer interface. The results show that task performance can be sustainable such that SNS use positively influences performance when participants are engaged in a simple task and influences performance neither positively nor negatively when participants are engaged in a complex task. The study finds the former result is attributable to the positive effect of the psychological arousal induced by SNS use and the latter result to the negative effect of the psychological arousal offsetting the positive effect of reduced stress resulting from SNS use.

  14. 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. ...

  15. 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...

  16. 33 CFR 106.140 - Maritime Security (MARSEC) Directive.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Maritime Security (MARSEC... SECURITY MARITIME SECURITY MARINE SECURITY: OUTER CONTINENTAL SHELF (OCS) FACILITIES General § 106.140 Maritime Security (MARSEC) Directive. All OCS facility owners or operators subject to this part must comply...

  17. 32 CFR 536.124 - Settlement authority for maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Settlement authority for maritime claims. 536.124 Section 536.124 National Defense Department of Defense (Continued) DEPARTMENT OF THE ARMY CLAIMS AND ACCOUNTS CLAIMS AGAINST THE UNITED STATES Maritime Claims § 536.124 Settlement authority for maritime...

  18. 46 CFR 5.71 - Maritime labor disputes.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Maritime labor disputes. 5.71 Section 5.71 Shipping... REGULATIONS-PERSONNEL ACTION Statement of Policy and Interpretation § 5.71 Maritime labor disputes. Under no circumstances will the Coast Guard exercise its authority for the purpose of favoring any party to a maritime...

  19. 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...

  20. 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

  1. Virtual Reality Robotic Surgery Warm-Up Improves Task Performance in a Dry Lab Environment: A Prospective Randomized Controlled Study

    Science.gov (United States)

    Lendvay, Thomas S.; Brand, Timothy C.; White, Lee; Kowalewski, Timothy; Jonnadula, Saikiran; Mercer, Laina; Khorsand, Derek; Andros, Justin; Hannaford, Blake; Satava, Richard M.

    2014-01-01

    Background Pre-operative simulation “warm-up” has been shown to improve performance and reduce errors in novice and experienced surgeons, yet existing studies have only investigated conventional laparoscopy. We hypothesized a brief virtual reality (VR) robotic warm-up would enhance robotic task performance and reduce errors. Study Design In a two-center randomized trial, fifty-one residents and experienced minimally invasive surgery faculty in General Surgery, Urology, and Gynecology underwent a validated robotic surgery proficiency curriculum on a VR robotic simulator and on the da Vinci surgical robot. Once successfully achieving performance benchmarks, surgeons were randomized to either receive a 3-5 minute VR simulator warm-up or read a leisure book for 10 minutes prior to performing similar and dissimilar (intracorporeal suturing) robotic surgery tasks. The primary outcomes compared were task time, tool path length, economy of motion, technical and cognitive errors. Results Task time (-29.29sec, p=0.001, 95%CI-47.03,-11.56), path length (-79.87mm, p=0.014, 95%CI -144.48,-15.25), and cognitive errors were reduced in the warm-up group compared to the control group for similar tasks. Global technical errors in intracorporeal suturing (0.32, p=0.020, 95%CI 0.06,0.59) were reduced after the dissimilar VR task. When surgeons were stratified by prior robotic and laparoscopic clinical experience, the more experienced surgeons(n=17) demonstrated significant improvements from warm-up in task time (-53.5sec, p=0.001, 95%CI -83.9,-23.0) and economy of motion (0.63mm/sec, p=0.007, 95%CI 0.18,1.09), whereas improvement in these metrics was not statistically significantly appreciated in the less experienced cohort(n=34). Conclusions We observed a significant performance improvement and error reduction rate among surgeons of varying experience after VR warm-up for basic robotic surgery tasks. In addition, the VR warm-up reduced errors on a more complex task (robotic

  2. Improving Learning Tasks for Mentally Handicapped People Using AmI Environments Based on Cyber-Physical Systems

    Directory of Open Access Journals (Sweden)

    Diego Martín

    2018-01-01

    Full Text Available A prototype to improve learning tasks for mentally handicapped people is shown in this research paper using ambient intelligence techniques and based on cyber-physical systems. The whole system is composed of a worktable, a cyber-glove (both with several RFID and NFC detection zones, and an AmI software application for modeling and workflow guidance. A case study was carried out by the authors where sixteen mentally handicapped people and 3 trainers were involved in the experiment. The experiment consisted in the execution of several memorization tasks of movements of objects using the approach presented in this paper. The results obtained were very interesting, indicating that this kind of solutions are feasible and allow the learning of complex tasks to some types of mentally handicapped people. In addition, at the end of the paper are presented some lessons learned after performing the experimentation.

  3. Real-time maritime scene simulation for ladar sensors

    Science.gov (United States)

    Christie, Chad L.; Gouthas, Efthimios; Swierkowski, Leszek; Williams, Owen M.

    2011-06-01

    Continuing interest exists in the development of cost-effective synthetic environments for testing Laser Detection and Ranging (ladar) sensors. In this paper we describe a PC-based system for real-time ladar scene simulation of ships and small boats in a dynamic maritime environment. In particular, we describe the techniques employed to generate range imagery accompanied by passive radiance imagery. Our ladar scene generation system is an evolutionary extension of the VIRSuite infrared scene simulation program and includes all previous features such as ocean wave simulation, the physically-realistic representation of boat and ship dynamics, wake generation and simulation of whitecaps, spray, wake trails and foam. A terrain simulation extension is also under development. In this paper we outline the development, capabilities and limitations of the VIRSuite extensions.

  4. 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.)

  5. 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

  6. 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...the PLAN will need to develop operational units that are better suited for carrying out operations other than war, such as medical units for

  7. A method to assess maritime resilience

    NARCIS (Netherlands)

    Rypkema, J.A.; Beek, F.A. van der; Schraagen, J.M.C.; Winkelman, J.W.; Wijngaarden, M. van

    2015-01-01

    The aim of this study is to develop a multi-level resilience analysis method (RAM) to assess risk and performance variability in current maritime socio-technical systems (STSs). The method integrates Hollnagel’s four resilience abilities to assess a system’s ability to effectively cope with

  8. Opportunities in Marine and Maritime Careers.

    Science.gov (United States)

    Heitzmann, Wm. Ray

    This book describes careers related to the sea. The following chapters are included: (1) "The World of Water"; (2) "Cruise Ship Careers"; (3) "Oceanography and the Marine Sciences"; (4) "Fishing"; (5) "Commerical Diving"; (6) "Maritime Transportation"; (7) "Shipbuilding"; (8) "Military Careers Afloat"; (9) "Miscellaneous Marine and Maritime…

  9. 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...

  10. 76 FR 29989 - National Maritime Day, 2011

    Science.gov (United States)

    2011-05-24

    ... and tugs, in our ports and shipyards, close to home or far at sea, to connect businesses, service 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...

  11. Maritime Load Dependent Lead Times - An Analysis

    DEFF Research Database (Denmark)

    Pahl, Julia; Voss, Stefan

    2017-01-01

    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....

  12. 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

  13. 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.

  14. 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.

  15. An introduction to the Research Innovation and Knowledge Management Roadmap for the South African Maritime Sector

    CSIR Research Space (South Africa)

    Funke, Nicola S

    2017-04-01

    Full Text Available OBJECTIVES & ACTIONS We have a maritime culture and recognise and learn from our maritime history 1 Foster national maritime pride 3 Develop and communicate a co-authored discourse on South Africa’s maritime history 2 Support maritime historical... and training facilities 6 Build and retain skills in the maritime sector 2 Support and develop maritime-focused technology and innovation 7 OBJECTIVES & ACTIONS Conduct humanities and social science research on pertinent issues 3 Create knowledge...

  16. 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.

  17. Effective Team Support: From Task and Cognitive Modeling to Software Agents for Time-Critical Complex Work Environments

    Science.gov (United States)

    Remington, Roger W. (Technical Monitor); John, Bonnie E.; Sycara, Katia

    2005-01-01

    The purpose of this research contract was to perform multidisciplinary research between CMU psychologists, computer scientists and NASA researchers to design a next generation collaborative system to support a team of human experts and intelligent agents. To achieve robust performance enhancement of such a system, we had proposed to perform task and cognitive modeling to thoroughly understand the impact technology makes on the organization and on key individual personnel. Guided by cognitively-inspired requirements, we would then develop software agents that support the human team in decision making, information filtering, information distribution and integration to enhance team situational awareness. During the period covered by this final report, we made substantial progress in completing a system for empirical data collection, cognitive modeling, and the building of software agents to support a team's tasks, and in running experiments for the collection of baseline data.

  18. Influences of Display Design and Task Management Strategy on Situation Awareness, Performance, and Workload in Process Control Environments

    Science.gov (United States)

    2014-12-26

    Colour Deficiency standard. Previous process control experience across participants was not required to participate in the study and resulted in...tracking dual-task performance. Psychological Research, 61 (1), 71-81. Chen, J. Y., Haas, E. C., & Barnes, M. J. (2007, November). Human Performance...Spelke, E. S. (1980). Dividing Attention Without Alternation or Automaticity . Journal of Experimental Psychology : General, 109 (1), 98-117. Ishihara, S

  19. Environment

    DEFF Research Database (Denmark)

    Valentini, Chiara

    2017-01-01

    The term environment refers to the internal and external context in which organizations operate. For some scholars, environment is defined as an arrangement of political, economic, social and cultural factors existing in a given context that have an impact on organizational processes and structures....... For others, environment is a generic term describing a large variety of stakeholders and how these interact and act upon organizations. Organizations and their environment are mutually interdependent and organizational communications are highly affected by the environment. This entry examines the origin...... and development of organization-environment interdependence, the nature of the concept of environment and its relevance for communication scholarships and activities....

  20. Initial evaluation of psychometric properties of a structured work task application for the Assessment of Work Performance in a constructed environment.

    Science.gov (United States)

    Karlsson, Elin A; Liedberg, Gunilla M; Sandqvist, Jan L

    2017-06-22

    The Swedish Social Insurance Administration has developed a new assessment tool for sickness insurance. This study is a part of the initial evaluation of the application, called the Assessment of Work Performance, Structured Activities, and focuses on evaluation of the psychometric properties of social validity, content validity, and utility. This was a qualitative study using semi-structured telephone interviews with occupational therapists. A convenience sample was used and participants who fulfilled inclusion criteria (n = 15) were interviewed. Data were analyzed using content analysis with a directed approach. The results indicate that the application provides valuable information and that it is socially valid. Assessors found work tasks suitable for a diverse group of clients and reported that clients accepted the assessments. Improvements were suggested, for example, expanding the application with more work tasks. The instrument has benefits; however, further development is desired. The use of a constructed environment in assessments may be a necessary option to supplement a real environment. But depending on organizational factors such as time and other resources, the participants had different opportunities to do so. Further evaluations regarding ecological validity are essential to ensure that assessments are fair and realistic when using constructed environments. Implications for rehabilitation This study indicates that assessment in a constructed environment can provide a secure and protected context for clients being assessed. Psychometric evaluations are a never-ending process and this assessment instrument needs further development. However, this initial evaluation provides guidance in development of the instrument but also what studies to give priority to. It is important to evaluate social validity in order to ensure that clients and assessors perceive assessment methods fair and meaningful. In this study, participants found the work tasks

  1. Adaptive Automation Based on an Object-Oriented Task Model: Implementation and Evaluation in a Realistic C2 Environment

    NARCIS (Netherlands)

    Greef, T.E.; Arciszewski, H.F.R.; Neerincx, M.A.

    2010-01-01

    Staffing reduction initiatives and more complicated military operations lead to a higher cognitive workload in command and control (C2) environments. Extending automation with adaptive capabilities can aid the human in overcoming cognitive workload challenges. At present, most adaptive automation

  2. 33 CFR 103.305 - Composition of an Area Maritime Security (AMS) Committee.

    Science.gov (United States)

    2010-07-01

    ... port stakeholders having a special competence in maritime security; and (7) Port stakeholders affected... Security (AMS) Committee. 103.305 Section 103.305 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: AREA MARITIME SECURITY Area Maritime...

  3. 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.

  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...... lois de Bjarkey et de Söderköping, puis de Schleswig. La progressive domination germanique sur la navigation en Baltique a pour conséquence la création de lois maritimes propres à Lübeck et à Hambourg, avant l’introduction des Rôles d’Oléron, traduits en bas-allemand pour former le Vonesse von Damme...

  5. Terrorisme maritime et piraterie d’aujourd’hui

    Directory of Open Access Journals (Sweden)

    Hugues Eudeline

    2009-09-01

    sailing the oceans and moving 90% of our world’s commerce. A piracy-terrorism nexus, if widely spread, could have lethal consequences for a weakened world economyBoth of them share a physical environment favorable to illegal activities. The oceans covering nearly three-quarters of the planet, freedom of the high seas make them impossible to control. Enduring piracy activities around Africa displays it at will. In parallel, Islamist terrorism implements its strategy targeting the world economy of which sea trade is one of the main pillars. Both activities are also closely linked to criminal activities: Terrorism for logistic purposes, while piracy is one of its main maritime components. Recognizing the close relationship between both activities, along with the complementarities of some specific skills could bring them even closer. Such an unnatural alliance could bring together the seamanship of pirates with the planning expertise of highly motivated terrorists.

  6. 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 the me...... the mechanisms used by MBMs, and explores how the concept of the Marginal Abatement Cost (MAC) can be linked to MBMs. It also attempts to discuss the pros and cons of the submitted proposals....

  7. Technology Foresight in Emerging Maritime & Marine Economies

    DEFF Research Database (Denmark)

    Spaniol, Matthew Jon; Rohrbeck, René

    . The technologies are organized to support innovation and the development of new business areas, and sustains discussion via an online portal. The upshot for technology developers is the organization of the technological landscape. The upshot for academics is the expanded horizon of emerging technologies...... for anticipatory projects, development efforts, and policy considerations. An early iteration of the Radar covers: • Renewable ocean energy • Seabed mining & offshore technology • Marine biotechnology & aquaculture • Specialized vessels & infrastructure • Servicing emerging maritime & offshore activities...

  8. Modern Piracy: The Impact on Maritime Security

    Science.gov (United States)

    2008-01-01

    attacked Source: International Chamber of Commerce , Commercial Crime Bureau. http://www.eurocrime.it/sitelPiracy%20and%20Terrorism.pdf Piracy, simply put...agency of the International Chamber of Commerce (ICC), provide regular statistical data and reports of acts ofpiracy and armed robbery against ShipS.14...3: Key Maritime Choke-points / Piracy Hot Spots Source: International Chamber of Commerce , Commercial Crime Bureau. http://www.eurocrime.it/site

  9. Improving Human Resources Recruitment in Maritime Domain

    OpenAIRE

    Surugiu Felicia; Dragomir Cristina

    2011-01-01

    In order to improve maritime human resources recruitment, most crewing and shipping companies implement an internal procedure of recruitment and management of ship’s crew. Based on observations at several crewing companies, this paper presents an example of such procedure meant to ensure that qualified and competent personnel is recruited and all ships in the fleet have crew members understanding their roles, duties and responsibilities and capable of working effectively in teams

  10. Maritime Security: Malaysia’s Persistent Problem

    Science.gov (United States)

    2012-01-01

    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... Razak , Dato’ Sri Najib , Deputy Prime Minister Malaysia, Address. Shangri-La Dialogue. Enhancing Maritime Security Cooperation. Singapore, 2005

  11. Risk Assessment in the Maritime Industry

    Directory of Open Access Journals (Sweden)

    M. Mousavi

    2017-02-01

    Full Text Available Risk assessment is a well-developed field which many operators are currently applying to improve their operations and reduce their risk exposure. This paper is intended to provide an overview of the risk assessment for mariners in the Maritime transportation. The risks addressed are primarily those affecting the safety of a vessel, facility or operation. The concept of risk is defined, and the methods available to assess the risks associated with an operation are described. Regulatory requirements that have prompted the development of modern risk assessment practices are described, and future regulatory trends are discussed. There are many different analysis techniques and models that have been developed to aid in conducting risk assessments. A key to any successful risk analysis is choosing the right method (or combination of methods for the situation at hand. This is achieved through critical analysis of the available data concerning marine crises. This paper provides a brief introduction to some of the analysis methods available and suggests risk analysis approaches to support different types of decision making within the maritime transportation to cope with crises. Finally, as awareness of risk assessment increases, the benefits which can be realized through its application will continue to increase. Organizations in both the public and the private sector are becoming more and more familiar with the benefits associated with risk-based approaches to managing safety and consequently reducing crisis in maritime transportation.

  12. Douglass Rationalization: An Evaluation of a Team Environment and a Computer-Based Task in Academic Libraries

    Science.gov (United States)

    Denda, Kayo; Smulewitz, Gracemary

    2004-01-01

    In the contemporary library environment, the presence of the Internet and the infrastructure of the integrated library system suggest an integrated internal organization. The article describes the example of Douglass Rationalization, a team-based collaborative project to refocus the collection of Rutgers' Douglass Library, taking advantage of the…

  13. 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.

  14. 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%).

  15. Maritime interception and the law of naval operations : A study of legal bases and legal regimes in maritime interception operations, in particular conducted outside the sovereign waters of a State and in the context of international peace and security

    NARCIS (Netherlands)

    Fink, M.D.

    2016-01-01

    This thesis is divided into four parts. Part I consists of a general introduction and will start with a brief sketch of the context of naval operations to better understand operational environment in which maritime interception operations are used (Chapter 2), and will also address contemporary

  16. Exploratory Study of Operational Approaches to Increase Narcotics Interdiction in the Maritime Domain

    Science.gov (United States)

    2012-06-08

    Maritime Domain. 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) Wesley H. Hester, LCDR, USCG 5d. PROJECT...analyzing, understanding, and acting” ( Cardon and Leonard 2010, 8). The applicable boundaries for the current environment exist in time and...inhospitable locations to hide during the day. It is likely that this trend will continue until either U.S. assets are consistently granted permission

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

    OpenAIRE

    Su, Chun-Lien; Liao, Chi-Hsiang; Chou, Tso-Chu; Chou, Ming-Hung; Guerrero, Josep M.

    2016-01-01

    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, and this presents a problem in unique marine environments. Such situations are especially conducive to energy-saving strategies using variable frequency drives (VFDs) in centrifugal load service. This pape...

  18. Factors affecting maritime pilots' health and well-being: a systematic review.

    Science.gov (United States)

    Main, Luana C; Chambers, Timothy P

    2015-01-01

    Maritime pilotage is a demanding occupation where pilots are required to perform complex procedures in sometimes unfamiliar working environments. These psychological stressors, in addition to the physical demands associated with the role (e.g., reduced sleep, boarding, and departing vessels), may over time have a damaging effect on pilots' physical and mental health. Therefore the aim of this paper was to systematically review the existing literature on maritime pilots' health and well-being. The databases academic search complete, MEDLINE and MEDLINE complete, PsycINFO, PsycARTICLES, PubMed, and ScienceDirect were searched from the earliest available record until 1 May 2015. From an initial pool of 167 manuscripts retrieved, only 18 were peer-reviewed original research and discussed topics associated with maritime pilots' health and well-being. In total, 29 factors associated with maritime pilot health and well-being were identified. These were loosely categorised into physical (n = 14), psychosocial (n = 8), and workplace issues (n = 7). The most commonly investigated factors were blood pressure or heart rate, sleep or fatigue, smoking and alcohol consumption, perceived stress, and shift duration or cycle. Findings from the review suggest that the prevention of cardiovascular diseases and associated cardio-metabolic risk factors seems to be of paramount importance, with ample evidence indicating that modern-day pilots present as being overweight or obese. What remains unknown is whether these physical factors are associated with variations in psychosocial functioning. Therefore, it is recommended that future pilotage investigations adopt a multidisciplinary approach to better quantify the impact of maritime pilotage on long-term health and well-being.

  19. An overview of maritime archaeological studies in India

    Digital Repository Service at National Institute of Oceanography (India)

    Tripati, S.

    stream_size 66180 stream_content_type text/plain stream_name Maritime_contacts_of_the_past_2015_729.pdf.txt stream_source_info Maritime_contacts_of_the_past_2015_729.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset...=UTF-8 AN OVERVIEW OF MARITIME ARCHAEOLOGICAL STUDIES IN INDIA 729An overview of maritime archaeological studies in India Sila Tripati, CSIR-National Institute of Oceanography, Goa, India Trade and cultural contacts among the people...

  20. 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)

  1. Maritime Security Fleet: Factors to Consider before Deciding to Select Participants Competitively

    National Research Council Canada - National Science Library

    1997-01-01

    The Maritime Security Act established the Maritime Security Fleet (MSF) program, authorizing MARAD to enter into agreements with maritime shipping companies to provide DOD access to commercial vessels operating under U.S...

  2. 76 FR 55732 - Public Listening Sessions Regarding the Maritime Administration's Panama Canal Expansion Study...

    Science.gov (United States)

    2011-09-08

    ... DEPARTMENT OF TRANSPORTATION Maritime Administration Public Listening Sessions Regarding the Maritime Administration's Panama Canal Expansion Study and the America's Marine Highway Program AGENCY: Maritime Administration, DOT. ACTION: Notice. SUMMARY: The purpose of this notice is to announce a series...

  3. Quantitative analysis of the improvement in omnidirectional maritime surveillance and tracking due to real-time image enhancement

    CSIR Research Space (South Africa)

    De Villiers, JP

    2011-04-01

    Full Text Available Omnidirectional camera systems are used to supplement RADAR in tracking small craft close in to the ship in a maritime environment. They can simultaneously track multiple targets to provide a more complete situational awareness. Due to their wide...

  4. Effective e-learning? Multi-tasking, distractions and boundary management by graduate students in an online environment

    Directory of Open Access Journals (Sweden)

    Jennie Winter

    2010-12-01

    Full Text Available This paper reports the findings of a small-scale study that documented the use of information technology for learning by a small group of postgraduate students. Our findings support current knowledge about characteristics displayed by effective e-learners, but also highlight a less researched but potentially important issue in developing e-learning expertise: the ability of students to manage the combination of learning and non-learning activities online. Although multi-tasking has been routinely observed amongst students and is often cited as a beneficial attribute of the e-learner, there is evidence that many students found switching between competing activities highly distracting. There is little empirical work that explores the ways in which students mitigate the impact of non-learning activities on learning, but the evidence from our study suggests that students employ a range of ‘boundary management' techniques, including separating activities by application and by technology. The paper suggests that this may have implications for students' and tutors' appropriation of Web 2.0 technologies for educational purposes and that further research into online boundary management may enhance understanding of the e-learning experience.

  5. 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...

  6. The mental health of deployed UK maritime forces.

    Science.gov (United States)

    Whybrow, Dean; Jones, Norman; Evans, Charlotte; Minshall, Darren; Smith, Darren; Greenberg, Neil

    2016-02-01

    To establish the level of psychological symptoms and the risk factors for possible decreased mental health among deployed UK maritime forces. A survey was completed by deployed Royal Navy (RN) personnel which measured the prevalence of common mental disorder (CMD), post-traumatic stress disorder (PTSD) and potential alcohol misuse. Military and operational characteristics were also measured including exposure to potentially traumatic events, problems occurring at home during the deployment, unit cohesion, leadership and morale. Associations between variables of interest were identified using binary logistic regression to generate ORs and 95% CIs adjusted for a range of potential confounding variables. In total, 41.2% (n=572/1387) of respondents reported probable CMD, 7.8% (n=109/1389) probable PTSD and 17.4% (n=242/1387) potentially harmful alcohol use. Lower morale, cohesion, leadership and problems at home were associated with CMD; lower morale, leadership, problems at home and exposure to potentially traumatic events were associated with probable PTSD; working in ships with a smaller crew size was associated with potentially harmful alcohol use. CMD and PTSD were more frequently reported in the maritime environment than during recent land-based deployments. Rates of potentially harmful alcohol use have reduced but remain higher than the wider military. Experiencing problems at home and exposure to potentially traumatic events were associated with experiencing poorer mental health; higher morale, cohesion and better leadership with fewer psychological symptoms. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  7. 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

  8. Process Algebra Approach for Action Recognition in the Maritime Domain

    Science.gov (United States)

    Huntsberger, Terry

    2011-01-01

    The maritime environment poses a number of challenges for autonomous operation of surface boats. Among these challenges are the highly dynamic nature of the environment, the onboard sensing and reasoning requirements for obeying the navigational rules of the road, and the need for robust day/night hazard detection and avoidance. Development of full mission level autonomy entails addressing these challenges, coupled with inference of the tactical and strategic intent of possibly adversarial vehicles in the surrounding environment. This paper introduces PACIFIC (Process Algebra Capture of Intent From Information Content), an onboard system based on formal process algebras that is capable of extracting actions/activities from sensory inputs and reasoning within a mission context to ensure proper responses. PACIFIC is part of the Behavior Engine in CARACaS (Cognitive Architecture for Robotic Agent Command and Sensing), a system that is currently running on a number of U.S. Navy unmanned surface and underwater vehicles. Results from a series of experimental studies that demonstrate the effectiveness of the system are also presented.

  9. 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.

  10. 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 using...

  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. 32 CFR 537.19 - Demands arising from maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Demands arising from maritime claims. 537.19 Section 537.19 National Defense Department of Defense (Continued) DEPARTMENT OF THE ARMY CLAIMS AND ACCOUNTS CLAIMS ON BEHALF OF THE UNITED STATES § 537.19 Demands arising from maritime claims. (a) It is...

  14. 32 CFR 537.18 - Settlement authority for maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Settlement authority for maritime claims. 537.18 Section 537.18 National Defense Department of Defense (Continued) DEPARTMENT OF THE ARMY CLAIMS AND ACCOUNTS CLAIMS ON BEHALF OF THE UNITED STATES § 537.18 Settlement authority for maritime claims. (a) The...

  15. 77 FR 51817 - National Maritime Security Advisory Committee; Meeting

    Science.gov (United States)

    2012-08-27

    ... the information sharing efforts of the Coast Guard and DHS. (2) Cyber-Security. The Committee will... DEPARTMENT OF HOMELAND SECURITY Coast Guard [USCG-2012-0797] National Maritime Security Advisory...: The National Maritime Security Advisory Committee (NMSAC) will meet on September 11-12, 2012 in the...

  16. PACFEST 2004 : enabling technologies for maritime security in the Pacific region.

    Energy Technology Data Exchange (ETDEWEB)

    Moore, Judy Hennessey; Whitley, John B.; Chellis, Craig (Pacific Disaster Center, Kihei, HI)

    2005-06-01

    In October of 2003 experts involved in various aspects of homeland security from the Pacific region met to engage in a free-wheeling discussion and brainstorming (a 'fest') on the role that technology could play in winning the war on terrorism in the Pacific region. The result was a concise and relatively thorough definition of the terrorism problem in the Pacific region, emphasizing the issues unique to Island nations in the Pacific setting, along with an action plan for developing working demonstrations of advanced technological solutions to these issues. Since PacFest 2003, the maritime dimensions of the international security environment have garnered increased attention and interest. To this end, PacFest 2004 sought to identify gaps and enabling technologies for maritime domain awareness and responsive decision-making in the Asia-Pacific region. The PacFest 2004 participants concluded that the technologies and basic information building blocks exist to create a system that would enable the Pacific region government and private organizations to effectively collaborate and share their capabilities and information concerning maritime security. The proposed solution summarized in this report integrates national environments in real time, thereby enabling effective prevention and first response to natural and terrorist induced disasters through better use of national and regional investments in people, infrastructure, systems, processes and standards.

  17. 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.

  18. Legal gaps relating to labour safety and health in the maritime transport sector in Spain.

    Science.gov (United States)

    Rodríguez, Julio Louro; Portela, Rosa Mary de la Campa; Carrera, Paula Vazquez

    2011-01-01

    Nowadays the labour sector is experiencing an important increase in the application of risk prevention policies. Although these policies are very significant due to their repercussions in the health of workers, we noticed important legal gaps in maritime sector regulations. Frequently sea workers are legally abandoned, by exclusion or omission, at the moment of claiming for the improvement of their working environment and the reduction of the negative consequences derived from this negligence over their safety and health. In the present paper we try to shed some light on this topic by analysing and examining minutely the Spanish applicable risk prevention legislation for this sector. Moreover, the recommendations of the International Maritime Organization are compared with the current application of the law. At the same time, we present some possible solutions to such problems from an objective point of view.

  19. Human Factors and Safety Culture in Maritime Safety (revised

    Directory of Open Access Journals (Sweden)

    Heinz Peter Berg

    2013-09-01

    Full Text Available As in every industry at risk, the human and organizational factors constitute the main stakes for maritime safety. Furthermore, several events at sea have been used to develop appropriate risk models. The investigation on maritime accidents is, nowadays, a very important tool to identify the problems related to human factor and can support accident prevention and the improvement of maritime safety. Part of this investigation should in future also be near misses. Operation of ships is full of regulations, instructions and guidelines also addressing human factors and safety culture to enhance safety. However, even though the roots of a safety culture have been established, there are still serious barriers to the breakthrough of the safety management. One of the most common deficiencies in the case of maritime transport is the respective monitoring and documentation usually lacking of adequacy and excellence. Nonetheless, the maritime area can be exemplified from other industries where activities are ongoing to foster and enhance safety culture.

  20. Lightning protection of ships in maritime and costal environment

    NARCIS (Netherlands)

    Blaj, M.A.; Leferink, Frank Bernardus Johannes

    2009-01-01

    An electromagnetic pulse due to a nearby lightning stroke generates a high intensity magnetic field. Thin metal layers as applied in composite structures cannot shield such a magnetic field. Electronic equipment inside such structures will suffer from high-induced voltages and damage and

  1. Cold-water immersion and iced-slush ingestion are effective at cooling firefighters following a simulated search and rescue task in a hot environment.

    Science.gov (United States)

    Walker, Anthony; Driller, Matthew; Brearley, Matt; Argus, Christos; Rattray, Ben

    2014-10-01

    Firefighters are exposed to hot environments, which results in elevated core temperatures. Rapidly reducing core temperatures will likely increase safety as firefighters are redeployed to subsequent operational tasks. This study investigated the effectiveness of cold-water immersion (CWI) and iced-slush ingestion (SLUSH) to cool firefighters post-incident. Seventy-four Australian firefighters (mean ± SD age: 38.9 ± 9.0 years) undertook a simulated search and rescue task in a heat chamber (105 ± 5 °C). Testing involved two 20-min work cycles separated by a 10-min rest period. Ambient temperature during recovery periods was 19.3 ± 2.7 °C. Participants were randomly assigned one of three 15-min cooling protocols: (i) CWI, 15 °C to umbilicus; (ii) SLUSH, 7 g·kg(-1) body weight; or (iii) seated rest (CONT). Core temperature and strength were measured pre- and postsimulation and directly after cooling. Mean temperatures for all groups reached 38.9 ± 0.9 °C at the conclusion of the second work task. Both CWI and SLUSH delivered cooling rates in excess of CONT (0.093 and 0.092 compared with 0.058 °C·min(-1)) and reduced temperatures to baseline measurements within the 15-min cooling period. Grip strength was not negatively impacted by either SLUSH or CONT. CWI and SLUSH provide evidence-based alternatives to passive recovery and forearm immersion protocols currently adopted by many fire services. To maximise the likelihood of adoption, we recommend SLUSH ingestion as a practical and effective cooling strategy for post-incident cooling of firefighters in temperate regions.

  2. Task 3 Report - PCBs in the Environment Near the Oak Ridge Reservation - A Reconstruction of Historical Doses and Health Risks

    Energy Technology Data Exchange (ETDEWEB)

    Price, Paul S; Widner, Thomas; Bonnevie, Nancy; Schmidt, Charlie; McCrodden-Hamblen, Jane; Vantaggio, Joanne; Gwinn, Patrick

    1999-07-01

    This report presents the results of an in-depth assessment of historical releases of polychlorinated biphenyls (PCBs) from the Oak Ridge Reservation (ORR) and risks of adverse health effects in local populations. The study was conducted by ChemRisk, a service of McLaren/Hart, Inc., for the Tennessee Department of Health. The project team (1) investigated releases of PCBs from the government sites, (2) evaluated PCB levels in environmental media in the area, (3) described releases of PCBs from other sources in the area, and (4) evaluated potential human exposures and health impacts associated with the historical presence of these contaminants in the environment. Beginning in the 1940s, PCBs were used extensively on the ORR and throughout the U.S. as a fire retardant in electrical components. PCBs were also used as cutting fluids for lubrication and cooling during metal working operations. Using information specific to the ORR, the project team estimated health risks for five off-site populations: (1) farm families that raised beef, dairy cattle, and vegetables on the flood plain of East Fork Poplar Creek (EFPC); (2) individuals who may have purchased beef and milk from cattle raised in the EFPC flood plain; (3) commercial and recreational fish consumers; (4) individuals that may have consumed turtles; and (5) users of surface water for recreation. Noteworthy features of the study include a two-dimensional analysis of uncertainty and variability in the non-cancer risk estimates and an assessment of the uncertainty in PCB toxicology thresholds. Conservative estimates of cancer risks from the ORR releases of PCBs to consumers of fish from Watts Bar Reservoir and the Clinch River range from less than 1 in a 1,000,000 to 2 in 10,000. Three or less excess cases of cancer would be expected to occur among individuals who consumed fish from these local waters since the 1940's. Persons who consumed large amounts of fish from the Clinch R. and Watts Bar were also at risk

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

    Energy Technology Data Exchange (ETDEWEB)

    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.

  4. Maritime Electric Co. Ltd. annual report, 1992

    International Nuclear Information System (INIS)

    1992-01-01

    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 1992 the Victoria Cross distribution substation was rebuilt. Earnings per share in 1992 were $1.85 compared with $1.79 in 1991. Demand side management initiatives were further enhanced and the plant life extension program continued at the Charlottetown Generating Plant. A ten year summary is included. 7 figs

  5. 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

  6. Opening of Offshore Oil Business in Mexico and Associated Framework to Cope with Potential Maritime Security Threats

    Directory of Open Access Journals (Sweden)

    Adriana Ávila-Zúáiga-Nordfjeld

    2018-03-01

    Full Text Available After 75 years of State oil monopoly, Mexico performed the first business oil round in 2015 involving the private sector. This auction-round offered 14 oil exploration fields located on the continental shelf to private companies. The development and exploitation of these hydrocarbon fields faces significant challenges regarding security. The economic loss for theft of hydrocarbons through illegal connections to pipelines is estimated to 973 million, 125 thousand U.S. dollar, only for the year of 2014. While productive research has been made, it has mainly focused on transportation systems and basically, pipelines. The development and establishment of policies prioritizing maritime security and protection of critical offshore infrastructure against theft of hydrocarbons, drugs organizations and terror attacks needs to be included in the national agenda to improve maritime security and mitigate potential security threats at sea, including damage to the marine environment. This could increase the trust of investors and stakeholders and would contribute to the faster development of new exploration and production fields. While the International Ship and Port Facility Security Code (ISPS Code is the cornerstone for the construction of the port?s security program and establishes the requirements of the Port Facility Security Plan (PFSP, including oil port facilities, it has not been fully implemented in several important Mexican ports. It is concluded that some important ports lack many of the core security processes, procedures and controls that should be included in any PFSP. This article briefly reviews the situation of the oil industry from a security perspective and discusses key elements of maritime security; addressing the necessity of the inclusion of maritime security and protection of critical oil infrastructure offshore in the national agenda that would provide for future research directions in the maritime security domain and contribute to

  7. 78 FR 14546 - Seagull Maritime Agencies Private Ltd. v. Gren Automotive, Inc., Centrus Automotive Distributors...

    Science.gov (United States)

    2013-03-06

    ... FEDERAL MARITIME COMMISSION [Docket No. 13-03] Seagull Maritime Agencies Private Ltd. v. Gren... Complaint and Assignment Notice is given that a complaint has been filed with the Federal Maritime Commission (Commission) by Seagull Maritime Agencies Private Limited (``SMA''), hereinafter ``Complainant...

  8. 47 CFR 80.469 - Maritime mobile repeater stations in Alaska.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Maritime mobile repeater stations in Alaska. 80... RADIO SERVICES STATIONS IN THE MARITIME SERVICES Public Coast Stations Use of Telephony § 80.469 Maritime mobile repeater stations in Alaska. (a) Maritime mobile repeater stations are authorized to extend...

  9. 32 CFR 536.121 - Claims not payable as maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Claims not payable as maritime claims. 536.121... ACCOUNTS CLAIMS AGAINST THE UNITED STATES Maritime Claims § 536.121 Claims not payable as maritime claims... (except at (e) and (k)), and 536.46; (b) Are not maritime in nature; (c) Are not in the best interests of...

  10. 33 CFR 105.230 - Maritime Security (MARSEC) Level coordination and implementation.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Maritime Security (MARSEC) Level..., DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: FACILITIES Facility Security Requirements § 105.230 Maritime Security (MARSEC) Level coordination and implementation. (a) The facility owner...

  11. 33 CFR 104.240 - Maritime Security (MARSEC) Level coordination and implementation.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Maritime Security (MARSEC) Level..., DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: VESSELS Vessel Security Requirements § 104.240 Maritime Security (MARSEC) Level coordination and implementation. (a) The vessel owner or...

  12. Beyond the Stone Town: Maritime Architecture at Fourteenth-Fifteenth Century Songo Mnara, Tanzania

    Science.gov (United States)

    Pollard, Edward; Fleisher, Jeffrey; Wynne-Jones, Stephanie

    2012-10-01

    The towns of the Swahili coast of East Africa are widely acknowledged as the remains of a maritime society whose relationship with the ocean was fundamental to their economy and identity. Yet research that links the terrestrial environments of the towns to their adjacent maritime landscapes is rare, and urgently required in the light of marine erosional processes unmitigated by human actions. In the Kilwa archipelago of southern Tanzania, survey of the coastal foreshore has documented maritime architecture—particularly a series of coral-built causeways—that serve to link the medieval towns of this area to coastal resources and to expand the limits of the settlements themselves. This paper reports on survey recovering these causeways on Songo Mnara Island, putting the structures into context as part of the broader spatial manifestation of the island's fourteenth-fifteenth century town. Several possible uses of the causeways are discussed, including functional explanations linked to the exploitation of oceanic resources, and more social reasons of territoriality and spatial demarcation.

  13. Spatial Pattern and Regional Relevance Analysis of the Maritime Silk Road Shipping Network

    Directory of Open Access Journals (Sweden)

    Naixia Mou

    2018-03-01

    Full Text Available Under the strategy of “One Belt and One Road”, this paper explores the spatial pattern and the status quo of regional trade relevance of the Maritime Silk Road shipping network. Based on complex network theory, a topological structure map of shipping networks for containers, tankers, and bulk carriers was constructed, and the spatial characteristics of shipping networks were analyzed. Using the mode of spatial arrangement and the Herfindahl–Hirschman Index, this paper further analyzes the traffic flow pattern of regional trade of three kinds of goods. It is shown that the shipping network of containers, tankers and bulk carriers are unevenly distributed and have regional agglomeration phenomena. There is a strong correlation between the interior of the region and the adjacent areas, and the port competition is fierce. Among them, the container ships network is the most competitive in the region, while the competitiveness of the tankers network is relatively the lowest. The inter-regional correlation is weak, and a few transit hub ports have obvious competitive advantages. The ports in Northeast Asia and Southeast Asia are the most significant. The research results combined with the Maritime Silk Road policy can provide reference for port construction, route optimization, and coordinated development of regional trade, which will help to save time and cost of marine transportation, reduce energy consumption, and promote the sustainable development of marine environment and regional trade on the Maritime Silk Road.

  14. 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.

  15. Surveillance of maritime deaths on board Danish merchant ships, 1986-2009.

    Science.gov (United States)

    Borch, Daniel F; Hansen, Henrik L; Burr, Hermann; Jepsen, Jørgen R

    2012-01-01

    A previous study demonstrated a high death rate among seafarers signed on Danish ships during the years 1986-1993. This study aimed to examine and analyse the subsequent development until 2009. A total of 356 fatalities were identified from data supplied from the Danish Maritime Authority, an insurance company, and other sources. Maritime deaths among seafarers signed on Danish ships comprise deaths from 1) accidents, suicides and homicides; and 2) disease on board. Deaths due to 2) occurring ashore within 30 days after signing off were included. The overall and mode-specific death rates were calculated for three eight-year observation periods. The rates for work-related fatal accidents were compared with the rates for land-based trades. All categories of maritime deaths were significantly reduced from 1986 to 2009 - in particular during the last eight-year period (Accidents 1986-1993: 66.6 per 100,000 person years, 2002-2009: 27.0 per 100,000 person years, diseases 49.5-26.1, suicides 14.4-7.8). In spite of the remarkable improvement since 1986, seafarers remain in 2002-2009 more than six times more likely to die from occupational accidents (including shipwrecks) than do workers ashore. The favourable trend of maritime deaths in the Danish merchant fleet may be due to 1) preventive measures - e.g. interventions relating to vessel safety, work environment, and improved medical care on board - and to 2) technological and organizational changes - e.g. newer and larger vessels in the Danish merchant fleet, changed composition of the workforce, and reduced shore leaves. The persisting excess risk warrants further preventive actions.

  16. Environmental and morphological changes around the Maritime Maya site Vista Alegre.

    Science.gov (United States)

    Jaijel, Roy; Goodman, Beverly; Glover, Jeffrey; Beddows, Patricia; Carter, Alice; Smith, Derek; Rissolo, Dominique; Ben Avraham, Zvi

    2016-04-01

    The untold story of the Maritime Maya from the ancient port site Vista Alegre, is being written for the first time using a multidisciplinary effort that aims to reconstruct the environmental and morphological history of the site. Vista Alegre is located on the north-eastern tip of the Yucatan peninsula, on the ancient Maritime Maya trade routes. This strategic point between the Caribbean Sea and the Gulf of Mexico, offers an ideal setting for this kind of research, which will add to the general Maritime Maya history. The multidisciplinary effort is part of a larger project called "Costa Escodida". The project's main goals are to learn how the ancient inhabitants adapted to the environment, and to understand how this coastal site was integrated into broader maritime trade routes. The portion of the research presented here concentrates on the sites geomorphology and climate during the past 2-3000 years through the multiproxy analysis of marine sediment core and surface samples combined with archaeological data. This study aids our understanding of the site's possible functions, the environmental challenges the local inhabits contended with, and the identification of ancient harboring locations. The site was inhabited from the 9th century B.C until the mid 16th century A.D., with an apparent two century abandonment phase from the mid 7th to 9th century A.D. According to the results, five depositional phases can be recognized, and the related shoreline reconstruction shows a general trend of a flooded terrestrial landscape. This 'flooding' relates well to relative sea-level curves published in the region. Continued analysis of results from the research, and future research activities, may make it possible to recognize hurricane proxies in the sediment, locate underwater manmade seafaring artifacts and facilities, determine the range of economic opportunities for past inhabitants and quantify the availability of potable water sources.

  17. 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.

  18. 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

  19. Effectiveness of maritime safety control in different navigation zones using a spatial sequential DEA model: Yangtze River case.

    Science.gov (United States)

    Wu, Bing; Wang, Yang; Zhang, Jinfen; Savan, Emanuel Emil; Yan, Xinping

    2015-08-01

    This paper aims to analyze the effectiveness of maritime safety control from the perspective of safety level along the Yangtze River with special considerations for navigational environments. The influencing variables of maritime safety are reviewed, including ship condition, maritime regulatory system, human reliability and navigational environment. Because the former three variables are generally assumed to be of the same level of safety, this paper focuses on studying the impact of navigational environments on the level of safety in different waterways. An improved data envelopment analysis (DEA) model is proposed by treating the navigational environment factors as inputs and ship accident data as outputs. Moreover, because the traditional DEA model cannot provide an overall ranking of different decision making units (DMUs), the spatial sequential frontiers and grey relational analysis are incorporated into the DEA model to facilitate a refined assessment. Based on the empirical study results, the proposed model is able to solve the problem of information missing in the prior models and evaluate the level of safety with a better accuracy. The results of the proposed DEA model are further compared with an evidential reasoning (ER) method, which has been widely used for level of safety evaluations. A sensitivity analysis is also conducted to better understand the relationship between the variation of navigational environments and level of safety. The sensitivity analysis shows that the level of safety varies in terms of traffic flow. It indicates that appropriate traffic control measures should be adopted for different waterways to improve their safety. This paper presents a practical method of conducting maritime level of safety assessments under dynamic navigational environment. Copyright © 2015 Elsevier Ltd. All rights reserved.

  20. 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

    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...... 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...

  1. 77 FR 39249 - Boston Area Maritime Security Advisory Committee; Vacancies

    Science.gov (United States)

    2012-07-02

    ... Purpose The AMSCs shall assist the Captain of the Port in the development, review, update, and exercising..., including labor; other port stakeholders having a special competence in maritime security; and port...

  2. Indonesian Sea Power and Regional Maritime Security Challenges

    Directory of Open Access Journals (Sweden)

    Marsetio Marsetio

    2017-07-01

    Full Text Available The main objective of this paper is to examine the regional maritime security challenges facing Indonesia. As it is known that entering to the 21st century has come a new term in regional architecture in the Asia-Pacific region, namely the Indo-Pacific region. This region consists of the Indian Ocean and Pacific. Both of these areas became more interconnected than in the previous period. These two regions became a single, significant system in the global order. Key players in the Indo-Pacific region are China, India and the United States. Of course, their actions have created new challenges in maritime security. These challenges include maritime disputes, pirates, and maritime power competition. The dispute in the South China Sea has spawned a security problem in the Asia Pacific region that Indonesia must face in the future.

  3. 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...

  4. 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...

  5. 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...

  6. Page PROBLEMS OF LITIGATION IN SETTLEMENT OF MARITIME

    African Journals Online (AJOL)

    Fr. Ikenga

    2013-08-01

    Aug 1, 2013 ... Maritime activities constitute a vital sector of the Nigerian economy. ... facilities also include ports, and inland waterways of about three thousand kilometres. ... such as charter parties, bills of lading, sale of ships, ship financing, ...

  7. Maritime NOx Emissions Over Chinese Seas Derived From Satellite Observations

    Science.gov (United States)

    Ding, J.; van der A, R. J.; Mijling, B.; Jalkanen, J.-P.; Johansson, L.; Levelt, P. F.

    2018-02-01

    By applying an inversion algorithm to NOx satellite observations from Ozone Monitoring Instrument, monthly NOx emissions for a 10 year period (2007 to 2016) over Chinese seas are presented for the first time. No effective regulations on NOx emissions have been implemented for ships in China, which is reflected in the trend analysis of maritime emissions. The maritime emissions display a continuous increase rate of about 20% per year until 2012 and slow down to 3% after that. The seasonal cycle of shipping emissions has regional variations, but all regions show lower emissions during winter. Simulations by an atmospheric chemistry transport model show a notable influence of maritime emissions on air pollution over coastal areas, especially in summer. The satellite-derived spatial distribution and the magnitude of maritime emissions over Chinese seas are in good agreement with bottom-up studies based on the Automatic Identification System of ships.

  8. 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.

  9. 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.

  10. Information as Object of Computer Science in Maritime Transport

    Directory of Open Access Journals (Sweden)

    Utureanu Simona

    2017-01-01

    The use of Information Technology infrastructures and the Internet, in addition to economic, social and political benefits, may also lead to tensions. The issue of cyber security can be addressed by promoting international maritime cyber security interests in international alliances.

  11. All at Sea: Sustaining livelihoods through maritime tourism in Croatia

    African Journals Online (AJOL)

    African Journal for Physical Activity and Health Sciences ... human capital, physical and social aspect, and natural capital) have proved to ... Keywords: Sustainable livelihoods, maritime tourism, seafaring community, entrepreneurship, Croatia.

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

    African Journals Online (AJOL)

    kofi.mereku

    symmetry in chemistry and physics; Calculus (differential equations) applicable in ... and engineering; and is a branch of applied mathematics. .... The maritime and offshore industries use advanced mathematical methods in the design of ships.

  13. Environment

    International Nuclear Information System (INIS)

    McIntyre, A.D.; Turnbull, R.G.H.

    1992-01-01

    The development of the hydrocarbon resources of the North Sea has resulted in both offshore and onshore environmental repercussions, involving the existing physical attributes of the sea and seabed, the coastline and adjoining land. The social and economic repercussions of the industry were equally widespread. The dramatic and speedy impact of the exploration and exploitation of the northern North Sea resources in the early 1970s, on the physical resources of Scotland was quickly realised together with the concern that any environmental and social damage to the physical and social fabric should be kept to a minimum. To this end, a wide range of research and other activities by central and local government, and other interested agencies was undertaken to extend existing knowledge on the marine and terrestrial environments that might be affected by the oil and gas industry. The outcome of these activities is summarized in this paper. The topics covered include a survey of the marine ecosystems of the North Sea, the fishing industry, the impact of oil pollution on seabirds and fish stocks, the ecology of the Scottish coastline and the impact of the petroleum industry on a selection of particular sites. (author)

  14. The Advocate's Devil: The Maritime Public Historian as Expert Witness.

    Science.gov (United States)

    Martin, Jay C

    2015-02-01

    The maritime historian working as litigation support and expert witness faces many challenges, including identifying and analyzing case law associated with admiralty subjects, cultural resource management law, and general historical topics. The importance of the unique knowledge of the historian in the maritime context is demonstrated by a case study of attempts to salvage the shipwreck Atlantic, the remains of a merchant vessel built and enrolled in the United States and lost in the Canadian waters of Lake Erie in 1852.

  15. Stochastic and simulation models of maritime intercept operations capabilities

    OpenAIRE

    Sato, Hiroyuki

    2005-01-01

    The research formulates and exercises stochastic and simulation models to assess the Maritime Intercept Operations (MIO) capabilities. The models focus on the surveillance operations of the Maritime Patrol Aircraft (MPA). The analysis using the models estimates the probability with which a terrorist vessel (Red) is detected, correctly classified, and escorted for intensive investigation and neutralization before it leaves an area of interest (AOI). The difficulty of obtaining adequate int...

  16. CNA Maritime Asia Project. Workshop Two: Naval Developments in Asia

    Science.gov (United States)

    2012-08-01

    Latin America and the Mediterranean. Over time, the Pacific Fleet will become the most important fleet in Russia. It will receive most (if not all...this required them to assume commercial risk in starting programmes before the contracts were finalized. 8 Gray, op cit, p 48. 29 CNA Maritime Asia...Three times in early 2011, China Maritime Surveillance vessels and a Chinese fishing boat curtailed seismic survey ships operations in designated

  17. Maritime Transportation of Illegal Drugs from South America

    Science.gov (United States)

    2017-01-01

    departing Colombia via maritime conveyances. Then we use information on routes and vessels used by DTOs to estimate the number of vessels transiting the...Office of Technology Assessment, The Border War On Drugs, OTA-O-336, March 1987. United States Senate Caucus On International Narcotics Control...2013) 0.91 2012 Figure 2 of ONDCP(2014) Table A.2: Fraction of Cocaine that leaves Colombia via Maritime Routes A.2.1 Drug Corridors The

  18. 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...fire service venturing beyond its fire suppression or emergency medical services role and asserted the value of having firefighters better integrated...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

  19. Future Scenarios of the South China Sea Maritime Disputes

    OpenAIRE

    Shee, Poon Kim

    2014-01-01

    The focus of this paper is to analyze three future scenarios in the maritime disputes in the South China Sea. These namely are No War Scenario, Impasse Scenario and Peace Scenario. Ultimately, the way forward towards a viable solution to resolving the South China Sea maritime disputes between China and other claimant states depends on the political wisdom, will and determination of the disputing states. Lofty nationalistic aspirations have to be tempered with a degree of flexibility and pragm...

  20. 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

  1. 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...

  2. Modelling and attenuation feasibility of the aeroelastic response of active helicopter rotor systems during the engagement/disengagement phase of maritime operation

    Science.gov (United States)

    Khouli, F.

    An aeroelastic phenomenon, known as blade sailing, encountered during maritime operation of helicopters is identified as being a factor that limits the tactical flexibility of helicopter operation in some sea conditions. The hazards associated with this phenomenon and its complexity, owing to the number of factors contributing to its occurrence, led previous investigators to conclude that advanced and validated simulation tools are best suited to investigate it. A research gap is identified in terms of scaled experimental investigation of this phenomenon and practical engineering solutions to alleviate its negative impact on maritime helicopter operation. The feasibility of a proposed strategy to alleviate it required addressing a gap in modelling thin-walled composite active beams/rotor blades. The modelling is performed by extending a mathematically-consistent and asymptotic reduction strategy of the 3-D elastic problem to account for embedded active materials. The derived active cross-sectional theory is validated using 2-D finite element results for closed and open cross-sections. The geometrically-exact intrinsic formulation of active maritime rotor systems is demonstrated to yield compact and symbolic governing equations. The intrinsic feature is shown to allow a classical and proven solution scheme to be successfully applied to obtain time history solutions. A Froude-scaled experimental rotor was designed, built, and tested in a scaled ship airwake environment and representative ship motion. Based on experimental and simulations data, conclusions are drawn regarding the influence of the maritime operation environment and the rotor operation parameters on the blade sailing phenomenon. The experimental data is also used to successfully validate the developed simulation tools. The feasibility of an open-loop control strategy based on the integral active twist concept to counter blade sailing is established in a Mach-scaled maritime operation environment

  3. Online maritime health information: an overview of the situation.

    Science.gov (United States)

    Guitton, Matthieu J

    2015-01-01

    Due to their working conditions, seafarers often don't benefit from the same medical coverage than the onshore population. Therefore, seafarers and their relatives often need to locate health information by themselves. While the rise of the Internet has drastically transformed the way people can gather information, the availability of specific maritime health information online still need to be evaluated scientifically. We aim here to document of the characteristic of maritime health-related online information. A web survey was performed, articulated on two complementary analyses. First, an overall analysis of websites related to maritime health compared to websites related to two other health areas relevant for the general population (dental health and otorhinolaryngology) used as control. Second, an analysis of the understandability and actionability of a series of Wikipedia articles related to pathologies relevant for seafarers using the Patient Education Materials Assessment Tool (PEMAT). Online resources associated with maritime health were sparse and difficult to locate. When compared to other medical fields, maritime health websites were extremely poor in displaying useful information for seafarers. Available online resources regarding specific diseases affecting seafarers were mainly not adapted for a general audience and scored poorly both in terms of understandability and of actionability. This study provides a general overview of the degree of adaption of online material related to maritime health to seafarers' potential needs. Considerably more efforts need to be made in order to provide controlled online materials to answer the health information needs of the seafarers and their relatives.

  4. 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 , people, cargo, and vessels and other conveyances,” (DoD 2005). Each country is required to monitor its own Exclusive Economic Zone (EEZ) for actions that may negatively affect the country’s environment, commerce or security... covers a larger area than its land and it is positioned at a maritime choke point in that it is surrounded by three oceans – the Indian, South Atlantic and Southern Ocean. In this way the improvement of South Africa’s own MDA is important to ensure...

  5. 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.

  6. Work environment stressors and personnel efficacy in Nigeria's ...

    African Journals Online (AJOL)

    Work environment stressors and personnel efficacy in Nigeria's maritime industry. ... Journal Home > Vol 15, No 1 (2017) > ... employees and corporate organizations need to manage stress by identifying the stressors and stress levels.

  7. Instruction of 7 september 1989 on measures to be taken by the public authorities in case of an accident during the maritime transport of radioactive materials (Nucmar Plan)

    International Nuclear Information System (INIS)

    1989-09-01

    This Instruction of the Prime Minister called Plan Nucmar, defines the general principles for the organisation of measures to be taken by the authorities in case of an accident occurring during a civilian maritime transport of radioactive materials entailing or possibly entailing damage which would affect the health of man or the marine environment. The Plan applies to any accident occurring within French territorial waters and beyond them when the coast and related interests are endangered and concerns the transport of Class 7 materials (radioactive materials with a specific activity exceeding 70 Bq/kg) under the International Maritime Dangerous Goods Code [fr

  8. Maritime health: a review with suggestions for research.

    Science.gov (United States)

    MacLachlan, Malcolm; Kavanagh, Bill; Kay, Alison

    2012-01-01

    International maritime health has largely developed within the sphere of occupational health services and international health problems. We reviewed publications in the journal International Maritime Health from 2000 to 2010 to establish the coverage of the journal and the scope of research in maritime health. We identified six thematic categories: healthcare access, delivery and integration; telehealth; non-communicable diseases and physical health problems; communicable diseases; psychological functioning and health; and safety-related issues. We describe the research within these themes and report on their publication prominence. We also analyse the research in terms of its geographical focus, the population groups addressed and the research methodologies used. We suggest a broadening of maritime research to include randomised controlled trials, longitudinal studies and more qualitative research; more research addressing the context for non-European seafarers; and research on seafarers spouses and family supports and obligations. We also recommend more research on psychosocial and cultural issues and on telehealth, as well as the development of a stronger systems perspective for promoting maritime health.

  9. Symptoms of fatigue and coping strategies in maritime pilotage.

    Science.gov (United States)

    Chambers, Timothy P; Main, Luana C

    2015-01-01

    Little is known regarding the symptoms of fatigue that maritime pilots experience during shift work. Moreover, the strategies these individuals use to cope with the onset of fatigue are also unknown. The current study explored the symptoms of fatigue and coping strategies experienced by maritime pilots when on-shift. Fifty maritime pilots were recruited via an advertisement in the national association's quarterly newsletter (Mage = 51.42; SD = 9.81). Participants responded to a modified version of the questionnaire used with aviation pilots that assessed overall fatigue, and the symptoms pilots associated with fatigue on duty. Methods pilots used to cope with fatigue before shift and when on the bridge were also assessed. There were significant effects for pilot vitality on 4 categories of fatigue: cognitive dysfunction; emotional disturbance; mean physical effects; and sleepiness. There were no significant effects for vitality on any of the self-reported coping strategy factors. The findings indicated that maritime pilots experience a variety of physical, behavioural, and cognitive fatigue symptoms when on shift. Some of these symptoms are similar to those reported by aviation pilots. However, unlike aviation pilots, maritime pilots reported utilising self-sufficient coping strategies to deal with the experience of fatigue.

  10. 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

  11. Infrared maritime target detection using the high order statistic filtering in fractional Fourier domain

    Science.gov (United States)

    Zhou, Anran; Xie, Weixin; Pei, Jihong

    2018-06-01

    Accurate detection of maritime targets in infrared imagery under various sea clutter conditions is always a challenging task. The fractional Fourier transform (FRFT) is the extension of the Fourier transform in the fractional order, and has richer spatial-frequency information. By combining it with the high order statistic filtering, a new ship detection method is proposed. First, the proper range of angle parameter is determined to make it easier for the ship components and background to be separated. Second, a new high order statistic curve (HOSC) at each fractional frequency point is designed. It is proved that maximal peak interval in HOSC reflects the target information, while the points outside the interval reflect the background. And the value of HOSC relative to the ship is much bigger than that to the sea clutter. Then, search the curve's maximal target peak interval and extract the interval by bandpass filtering in fractional Fourier domain. The value outside the peak interval of HOSC decreases rapidly to 0, so the background is effectively suppressed. Finally, the detection result is obtained by the double threshold segmenting and the target region selection method. The results show the proposed method is excellent for maritime targets detection with high clutters.

  12. 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.

  13. 78 FR 9406 - Southwest Louisiana Area Maritime Security Regional Sub-Committee; Vacancies

    Science.gov (United States)

    2013-02-08

    ..., review, update, and exercising of the Area Maritime Security (AMS) Plan for their area of responsibility... port stakeholders having a special competence in maritime security; and port stakeholders affected by...

  14. 77 FR 6133 - Sector Upper Mississippi River Area Maritime Security Committee; Vacancies

    Science.gov (United States)

    2012-02-07

    ... Port in the review, update, and exercising of the Area Maritime Security (AMS) Plan for their area of..., including labor; other port stakeholders having a special competence in maritime security; and port...

  15. 76 FR 8765 - Eastern Great Lakes Area Maritime Security Committee; Vacancies

    Science.gov (United States)

    2011-02-15

    ..., update, and exercising of the AMS Plan for their area of responsibility. Such matters may include, but...; maritime industry, including labor; other port stakeholders having a special competence in maritime...

  16. 78 FR 11670 - Eastern Great Lakes Area Maritime Security Committee; Vacancies

    Science.gov (United States)

    2013-02-19

    ... assist the Captain of the Port in the development, review, update, and exercising of the Area Maritime..., including labor; other port stakeholders having a special competence in maritime security; and port...

  17. 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 Occupational Safety and Health (MACOSH) AGENCY: Occupational Safety and Health Administration (OSHA), Labor... Maritime Advisory Committee for Occupational Safety and Health. The Committee will better enable OSHA to...

  18. 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.

  19. Dynamics of Clouds and Mesoscale Circulations over the Maritime Continent

    Science.gov (United States)

    Jin, Y.; Wang, S.; Xian, P.; Reid, J. S.; Nachamkin, J.

    2010-12-01

    In recent decades Southeast Asia (SEA) has seen rapid economic growth as well as increased biomass burning, resulting in high air pollution levels and reduced air qual-ity. At the same time clouds often prevent accurate air-quality monitoring and analysis using satellite observations. The Seven SouthEast Asian Studies (7SEAS) field campaign currently underway over SEA provides an unprecedented opportunity to study the com-plex interplay between aerosol and clouds. 7SEAS is a comprehensive interdisciplinary atmospheric sciences program through international partnership of NASA, NRL, ONR and seven local institutions including those from Indonesia, Malaysia, the Philippines, Singapore, Taiwan, Thailand, and Vietnam. While the original goal of 7SEAS is to iso-late the impacts of aerosol particles on weather and the environment, it is recognized that better understanding of SEA meteorological conditions, especially those associated with cloud formation and evolution, is critical to the success of the campaign. In this study we attempt to gain more insight into the dynamic and physical processes associated with low level clouds and atmospheric circulation at the regional scale over SEA, using the Navy’s Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS® ), a regional forecast model in operation at FNMOC since 1998. This effort comprises two main components. First, multiple-years of COAMPS operational forecasts over SEA are analyzed for basic climatology of atmospheric fea-tures. Second, mesoscale circulation and cloud properties are simulated at relatively higher resolution (15-km) for selected periods in the Gulf of Tonkin and adjacent coastal areas. Simulation results are compared to MODIS cloud observations and local sound-ings obtained during 7SEAS for model verifications. Atmospheric boundary layer proc-esses are examined in relation to spatial and temporal variations of cloud fields. The cur-rent work serves as an important step toward improving our

  20. 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.

  1. 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.

  2. 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.

  3. 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...... of the production chain and provide services which manufacturers don’t consider their core business (service). This includes assembly, quality control, customizing and packing of goods, pest control and after sales services. Third party ship management companies may reduce costs through economies of scale (cost...

  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. 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

  6. 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.

  7. 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.

  8. Development of nuclear spent fuel Maritime transportation scenario

    Energy Technology Data Exchange (ETDEWEB)

    Yoo, Min; Kang, Hyun Gook [KAIST, Daejeon (Korea, Republic of)

    2014-08-15

    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.

  9. 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.

  10. Maritime Aerosol Network as a Component of AERONET - First Results and Comparison with Global Aerosol Models and Satellite Retrievals

    Science.gov (United States)

    Smirnov, A.; Holben, B. N.; Giles, D. M.; Slutsker, I.; O'Neill, N. T.; Eck, T. F.; Macke, A.; Croot, P.; Courcoux, Y.; Sakerin, S. M.; hide

    2011-01-01

    The Maritime Aerosol Network (MAN) has been collecting data over the oceans since November 2006. Over 80 cruises were completed through early 2010 with deployments continuing. Measurement areas included various parts of the Atlantic Ocean, the Northern and Southern Pacific Ocean, the South Indian Ocean, the Southern Ocean, the Arctic Ocean and inland seas. MAN deploys Microtops handheld sunphotometers and utilizes a calibration procedure and data processing traceable to AERONET. Data collection included areas that previously had no aerosol optical depth (AOD) coverage at all, particularly vast areas of the Southern Ocean. The MAN data archive provides a valuable resource for aerosol studies in maritime environments. In the current paper we present results of AOD measurements over the oceans, and make a comparison with satellite AOD retrievals and model simulations.

  11. Maritime aerosol network as a component of AERONET – first results and comparison with global aerosol models and satellite retrievals

    Directory of Open Access Journals (Sweden)

    A. Smirnov

    2011-03-01

    Full Text Available The Maritime Aerosol Network (MAN has been collecting data over the oceans since November 2006. Over 80 cruises were completed through early 2010 with deployments continuing. Measurement areas included various parts of the Atlantic Ocean, the Northern and Southern Pacific Ocean, the South Indian Ocean, the Southern Ocean, the Arctic Ocean and inland seas. MAN deploys Microtops hand-held sunphotometers and utilizes a calibration procedure and data processing traceable to AERONET. Data collection included areas that previously had no aerosol optical depth (AOD coverage at all, particularly vast areas of the Southern Ocean. The MAN data archive provides a valuable resource for aerosol studies in maritime environments. In the current paper we present results of AOD measurements over the oceans, and make a comparison with satellite AOD retrievals and model simulations.

  12. 47 CFR 80.1251 - Maritime communications subject to competitive bidding.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Maritime communications subject to competitive... AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Competitive Bidding Procedures § 80.1251 Maritime communications subject to competitive bidding. Mutually exclusive initial applications for VPCSA...

  13. 46 CFR 1.01-15 - Organization; Districts; National Maritime Center.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Organization; Districts; National Maritime Center. 1.01... General Flow of Functions § 1.01-15 Organization; Districts; National Maritime Center. (a) To assist the... navigation, vessel inspection and seaman laws in general. (c) The Commanding Officer of the National Maritime...

  14. 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... BENEFIT PLANS Scope and General Provisions § 2530.200b-7 Day of service for employees in the maritime industry. (a) General rule. A day of service in the maritime industry which must, as a minimum, be counted...

  15. 46 CFR 1.03-40 - Appeals from decisions or actions of the National Maritime Center.

    Science.gov (United States)

    2010-10-01

    ... Maritime Center. 1.03-40 Section 1.03-40 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PROCEDURES... Appeal § 1.03-40 Appeals from decisions or actions of the National Maritime Center. Any person directly affected by a decision or action of an officer or employee of the National Maritime Center (NMC) involving...

  16. 32 CFR 536.123 - Limitation of liability for maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Limitation of liability for maritime claims. 536... AND ACCOUNTS CLAIMS AGAINST THE UNITED STATES Maritime Claims § 536.123 Limitation of liability for maritime claims. For admiralty claims arising within the United States under the provisions of the...

  17. 33 CFR 106.235 - Maritime Security (MARSEC) Level coordination and implementation.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Maritime Security (MARSEC) Level..., DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARINE SECURITY: OUTER CONTINENTAL SHELF (OCS) FACILITIES Outer Continental Shelf (OCS) Facility Security Requirements § 106.235 Maritime Security (MARSEC) Level...

  18. 32 CFR 536.122 - Limitation of settlement of maritime claims.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Limitation of settlement of maritime claims. 536... AND ACCOUNTS CLAIMS AGAINST THE UNITED STATES Maritime Claims § 536.122 Limitation of settlement of maritime claims. (a) Within the United States the period of completing an administrative settlement under...

  19. 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…

  20. 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...

  1. 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...

  2. 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...

  3. The Law and Economics of International Cooperation Against Maritime Piracy

    OpenAIRE

    Paul Hallwood; Thomas J. Miceli

    2011-01-01

    Article 100 of the U.N. Convention on the Law of the Sea requires signatories to “cooperate” against maritime piracy, but “cooperate” is undefined. Enforcement is a public good – creating uncompensated benefits for others, so suffering from free-rider problems. Our analysis readily explains why more pirates captured are released than prosecuted; why the U.N. and International Maritime Organization are seeking to reduce enforcement costs; why some in the shipping industry want to apply the 198...

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

    DEFF Research Database (Denmark)

    Sløk-Madsen, Stefan Kirkegaard

    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...... 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...

  5. Analysis of a Pareto Mixture Distribution for Maritime Surveillance Radar

    Directory of Open Access Journals (Sweden)

    Graham V. Weinberg

    2012-01-01

    Full Text Available The Pareto distribution has been shown to be an excellent model for X-band high-resolution maritime surveillance radar clutter returns. Given the success of mixture distributions in radar, it is thus of interest to consider the effect of Pareto mixture models. This paper introduces a formulation of a Pareto intensity mixture distribution and investigates coherent multilook radar detector performance using this new clutter model. Clutter parameter estimates are derived from data sets produced by the Defence Science and Technology Organisation's Ingara maritime surveillance radar.

  6. "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.

  7. 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.......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...

  8. 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.

  9. 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.

  10. Relevance of carbon stocks of marine sediments for national greenhouse gas inventories of maritime nations

    Directory of Open Access Journals (Sweden)

    Silvania Avelar

    2017-05-01

    Full Text Available Abstract Background Determining national carbon stocks is essential in the framework of ongoing climate change mitigation actions. Presently, assessment of carbon stocks in the context of greenhouse gas (GHG-reporting on a nation-by-nation basis focuses on the terrestrial realm, i.e., carbon held in living plant biomass and soils, and on potential changes in these stocks in response to anthropogenic activities. However, while the ocean and underlying sediments store substantial quantities of carbon, this pool is presently not considered in the context of national inventories. The ongoing disturbances to both terrestrial and marine ecosystems as a consequence of food production, pollution, climate change and other factors, as well as alteration of linkages and C-exchange between continental and oceanic realms, highlight the need for a better understanding of the quantity and vulnerability of carbon stocks in both systems. We present a preliminary comparison of the stocks of organic carbon held in continental margin sediments within the Exclusive Economic Zone of maritime nations with those in their soils. Our study focuses on Namibia, where there is a wealth of marine sediment data, and draws comparisons with sediment data from two other countries with different characteristics, which are Pakistan and the United Kingdom. Results Results indicate that marine sediment carbon stocks in maritime nations can be similar in magnitude to those of soils. Therefore, if human activities in these areas are managed, carbon stocks in the oceanic realm—particularly over continental margins—could be considered as part of national GHG inventories. Conclusions This study shows that marine sediment organic carbon stocks can be equal in size or exceed terrestrial carbon stocks of maritime nations. This provides motivation both for improved assessment of sedimentary carbon inventories and for reevaluation of the way that carbon stocks are assessed and valued. The

  11. Relevance of carbon stocks of marine sediments for national greenhouse gas inventories of maritime nations.

    Science.gov (United States)

    Avelar, Silvania; van der Voort, Tessa S; Eglinton, Timothy I

    2017-12-01

    Determining national carbon stocks is essential in the framework of ongoing climate change mitigation actions. Presently, assessment of carbon stocks in the context of greenhouse gas (GHG)-reporting on a nation-by-nation basis focuses on the terrestrial realm, i.e., carbon held in living plant biomass and soils, and on potential changes in these stocks in response to anthropogenic activities. However, while the ocean and underlying sediments store substantial quantities of carbon, this pool is presently not considered in the context of national inventories. The ongoing disturbances to both terrestrial and marine ecosystems as a consequence of food production, pollution, climate change and other factors, as well as alteration of linkages and C-exchange between continental and oceanic realms, highlight the need for a better understanding of the quantity and vulnerability of carbon stocks in both systems. We present a preliminary comparison of the stocks of organic carbon held in continental margin sediments within the Exclusive Economic Zone of maritime nations with those in their soils. Our study focuses on Namibia, where there is a wealth of marine sediment data, and draws comparisons with sediment data from two other countries with different characteristics, which are Pakistan and the United Kingdom. Results indicate that marine sediment carbon stocks in maritime nations can be similar in magnitude to those of soils. Therefore, if human activities in these areas are managed, carbon stocks in the oceanic realm-particularly over continental margins-could be considered as part of national GHG inventories. This study shows that marine sediment organic carbon stocks can be equal in size or exceed terrestrial carbon stocks of maritime nations. This provides motivation both for improved assessment of sedimentary carbon inventories and for reevaluation of the way that carbon stocks are assessed and valued. The latter carries potential implications for the management of

  12. U.S. northeast and Maritime markets : a marketer`s perspective

    Energy Technology Data Exchange (ETDEWEB)

    Broadfoot, M. [Engage Energy Canada, Calgary, AB (Canada)

    1998-09-01

    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.

  13. A 1-night operant learning task without food-restriction differentiates among mouse strains in an automated home-cage environment.

    Science.gov (United States)

    Remmelink, Esther; Loos, Maarten; Koopmans, Bastijn; Aarts, Emmeke; van der Sluis, Sophie; Smit, August B; Verhage, Matthijs

    2015-04-15

    Individuals are able to change their behavior based on its consequences, a process involving instrumental learning. Studying instrumental learning in mice can provide new insights in this elementary aspect of cognition. Conventional appetitive operant learning tasks that facilitate the study of this form of learning in mice, as well as more complex operant paradigms, require labor-intensive handling and food deprivation to motivate the animals. Here, we describe a 1-night operant learning protocol that exploits the advantages of automated home-cage testing and circumvents the interfering effects of food restriction. The task builds on behavior that is part of the spontaneous exploratory repertoire during the days before the task. We compared the behavior of C57BL/6J, BALB/cJ and DBA/2J mice and found various differences in behavior during this task, but no differences in learning curves. BALB/cJ mice showed the largest instrumental learning response, providing a superior dynamic range and statistical power to study instrumental learning by using this protocol. Insights gained with this home-cage-based learning protocol without food restriction will be valuable for the development of other, more complex, cognitive tasks in automated home-cages. Copyright © 2015 Elsevier B.V. All rights reserved.

  14. 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 ...

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. 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…

  20. 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

  1. 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

  2. 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...

  3. 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.

  4. Securing the High Seas: America's Global Maritime Constabulatory Power

    National Research Council Canada - National Science Library

    Eaglen, Mackenzie M; Dolbow, James; Andersen, Martin E; Carafano, James J

    2008-01-01

    ...; 4) Suggests how the private sector can and should contribute; 5) Recommends a division of responsibilities for maritime constabulary duties between the U.S. Navy and U.S. Coast Guard; and 6) Identifies the budgetary, regulatory, and legislative implications of the recommendations.

  5. Rule-based expert system for maritime anomaly detection

    Science.gov (United States)

    Roy, Jean

    2010-04-01

    Maritime domain operators/analysts have a mandate to be aware of all that is happening within their areas of responsibility. This mandate derives from the needs to defend sovereignty, protect infrastructures, counter terrorism, detect illegal activities, etc., and it has become more challenging in the past decade, as commercial shipping turned into a potential threat. In particular, a huge portion of the data and information made available to the operators/analysts is mundane, from maritime platforms going about normal, legitimate activities, and it is very challenging for them to detect and identify the non-mundane. To achieve such anomaly detection, they must establish numerous relevant situational facts from a variety of sensor data streams. Unfortunately, many of the facts of interest just cannot be observed; the operators/analysts thus use their knowledge of the maritime domain and their reasoning faculties to infer these facts. As they are often overwhelmed by the large amount of data and information, automated reasoning tools could be used to support them by inferring the necessary facts, ultimately providing indications and warning on a small number of anomalous events worthy of their attention. Along this line of thought, this paper describes a proof-of-concept prototype of a rule-based expert system implementing automated rule-based reasoning in support of maritime anomaly detection.

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

    African Journals Online (AJOL)

    This study examines the problems of litigation in settlement of disputes in maritime industry in Nigeria, which sector is vital to the nation's economy. It also investigates the prospects and viability of arbitration technique as an alternative. It is discovered that although litigation has been the most common mechanism for the ...

  7. 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

  8. 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

  9. The new Euskalmet coastal-maritime warning system

    Science.gov (United States)

    Gaztelumendi, Santiago; Egaña, Joseba; Liria, Pedro; Gonzalez, Manuel; Aranda, José Antonio; Anitua, Pedro

    2016-06-01

    This work presents the main characteristics of the Basque Meteorology Agency (Euskalmet) maritime-coastal risk warning system, with special emphasis on the latest updates, including a clear differentiation on specific warning messages addressing sea conditions for navigation purposes in the first 2 nautical miles, and expected coastal impacts. Some details of the warning bulletin for maritime and coastal risk situations are also presented, together with other communication products and strategies used in coastal and maritime severe episodes at the Basque coast. Today, three different aspects are included in the coastal-maritime risk warning system in Basque Country, related to the main potential severe events that affecting coastal activities. - "Galerna" risk relates to a sudden wind reversal that can severely affect coastal navigation and recreational activities. - "Navigation" risk relates to severe sea state conditions for 0-2 miles, affecting different navigation activities. - "Coastal impact" risk relates to adverse wave characteristics and tidal surges that induce flooding events and different impacts in littoral areas.

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

    African Journals Online (AJOL)

    Maritime activities occupy more than three-quarters of the world space and provide a huge occupational industry for mankind. Of late, ship construction and usage including space management onboard the vessels and the ports have brought about a great dependency on mathematical principles or models such as time ...

  11. Chirping for large-scale maritime archaeological survey

    DEFF Research Database (Denmark)

    Grøn, Ole; Boldreel, Lars Ole

    2014-01-01

    Archaeological wrecks exposed on the sea floor are mapped using side-scan and multibeam techniques, whereas the detection of submerged archaeological sites, such as Stone Age settlements, and wrecks, partially or wholly embedded in sea-floor sediments, requires the application of high-resolution ...... the present state of this technology, it appears well suited to large-scale maritime archaeological mapping....

  12. Texture orientation-based algorithm for detecting infrared maritime targets.

    Science.gov (United States)

    Wang, Bin; Dong, Lili; Zhao, Ming; Wu, Houde; Xu, Wenhai

    2015-05-20

    Infrared maritime target detection is a key technology for maritime target searching systems. However, in infrared maritime images (IMIs) taken under complicated sea conditions, background clutters, such as ocean waves, clouds or sea fog, usually have high intensity that can easily overwhelm the brightness of real targets, which is difficult for traditional target detection algorithms to deal with. To mitigate this problem, this paper proposes a novel target detection algorithm based on texture orientation. This algorithm first extracts suspected targets by analyzing the intersubband correlation between horizontal and vertical wavelet subbands of the original IMI on the first scale. Then the self-adaptive wavelet threshold denoising and local singularity analysis of the original IMI is combined to remove false alarms further. Experiments show that compared with traditional algorithms, this algorithm can suppress background clutter much better and realize better single-frame detection for infrared maritime targets. Besides, in order to guarantee accurate target extraction further, the pipeline-filtering algorithm is adopted to eliminate residual false alarms. The high practical value and applicability of this proposed strategy is backed strongly by experimental data acquired under different environmental conditions.

  13. Underreporting of maritime accidents to vessel accident databases.

    Science.gov (United States)

    Hassel, Martin; Asbjørnslett, Bjørn Egil; Hole, Lars Petter

    2011-11-01

    Underreporting of maritime accidents is a problem not only for authorities trying to improve maritime safety through legislation, but also to risk management companies and other entities using maritime casualty statistics in risk and accident analysis. This study collected and compared casualty data from 01.01.2005 to 31.12.2009, from IHS Fairplay and the maritime authorities from a set of nations. The data was compared to find common records, and estimation of the true number of occurred accidents was performed using conditional probability given positive dependency between data sources, several variations of the capture-recapture method, calculation of best case scenario assuming perfect reporting, and scaling up a subset of casualty information from a marine insurance statistics database. The estimated upper limit reporting performance for the selected flag states ranged from 14% to 74%, while the corresponding estimated coverage of IHS Fairplay ranges from 4% to 62%. On average the study results document that the number of unreported accidents makes up roughly 50% of all occurred accidents. Even in a best case scenario, only a few flag states come close to perfect reporting (94%). The considerable scope of underreporting uncovered in the study, indicates that users of statistical vessel accident data should assume a certain degree of underreporting, and adjust their analyses accordingly. Whether to use correction factors, a safety margin, or rely on expert judgment, should be decided on a case by case basis. Copyright © 2011 Elsevier Ltd. All rights reserved.

  14. 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... application form by one of the following methods: E-mail: [email protected] , Subject line: NMSAC Application... fiscal year. Working group meetings and teleconferences are held more frequently, as needed. It may also...

  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. A Vision in Jeopardy: Royal Navy Maritime Autonomous Systems (MAS)

    Science.gov (United States)

    2017-03-31

    Change .....................................................................................................32 Hedging our Bets ̶ What if we are Wrong... think , out decide and 5 United Kingdom, Ministry of Defence, British Maritime Doctrine, 4th...needs organizational slack in the form of money, people, and time to think beyond the immediate. 9 The Strategic Defence Review 2015 can be found

  17. 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 ...

  18. 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.

  19. A 1-night operant learning task without food-restriction differentiates among mouse strains in an automated home-cage environment

    NARCIS (Netherlands)

    Remmelink, Esther; Loos, Maarten; Koopmans, Bastijn; Aarts, Emmeke; van der Sluis, Sophie; Smit, August B; Verhage, Matthijs

    2015-01-01

    Individuals are able to change their behavior based on its consequences, a process involving instrumental learning. Studying instrumental learning in mice can provide new insights in this elementary aspect of cognition. Conventional appetitive operant learning tasks that facilitate the study of this

  20. Role of Snow Deposition of Perfluoroalkylated Substances at Coastal Livingston Island (Maritime Antarctica).

    Science.gov (United States)

    Casal, Paulo; Zhang, Yifeng; Martin, Jonathan W; Pizarro, Mariana; Jiménez, Begoña; Dachs, Jordi

    2017-08-01

    Perfluoroalkyl substances (PFAS) are ubiquitous in the environment, including remote polar regions. To evaluate the role of snow deposition as an input of PFAS to Maritime Antarctica, fresh snow deposition, surface snow, streams from melted snow, coastal seawater, and plankton samples were collected over a three-month period (December 2014-February 2015) at Livingston Island. Local sources of PFASs were significant for perfluoroalkyl sulfonates (PFSAs) and C7-14 perfluoroalkyl carboxylates (PFCAs) in snow but limited to the transited areas of the research station. The concentrations of 14 ionizable PFAS (∑PFAS) in freshly deposited snow (760-3600 pg L -1 ) were 1 order of magnitude higher than those in background surface snow (82-430 pg L -1 ). ∑PFAS ranged from 94 to 420 pg L -1 in seawater and from 3.1 to 16 ng g dw -1 in plankton. Ratios of individual PFAS concentrations in freshly deposited snow relative to surface snow (C SD /C Snow ), snowmelt (C SD /C SM ), and seawater (C SD /C SW ) were close to 1 (from 0.44 to 1.4) for all perfluorooctanesulfonate (PFOS) isomers, suggesting that snowfall does not contribute significantly to PFOS in seawater. Conversely, these ratios for PFCAs ranged from 1 to 33 and were positively correlated with the number of carbons in the PFCA alkylated chain. These trends suggest that snow deposition, scavenging sea-salt aerosol bound PFAS, plays a role as a significant input of PFCAs to the Maritime Antarctica.

  1. Identification of water-deficit responsive genes in maritime pine (Pinus pinaster Ait.) roots.

    Science.gov (United States)

    Dubos, Christian; Plomion, Christophe

    2003-01-01

    Root adaptation to soil environmental factors is very important to maritime pine, the main conifer species used for reforestation in France. The range of climates in the sites where this species is established varies from flooded in winter to drought-prone in summer. No studies have yet focused on the morphological, physiological or molecular variability of the root system to adapt its growth to such an environment. We developed a strategy to isolate drought-responsive genes in the root tissue in order to identify the molecular mechanisms that trees have evolved to cope with drought (the main problem affecting wood productivity), and to exploit this information to improve drought stress tolerance. In order to provide easy access to the root system, seedlings were raised in hydroponic solution. Polyethylene glycol was used as an osmoticum to induce water deficit. Using the cDNA-AFLP technique, we screened more than 2500 transcript derived fragments, of which 33 (1.2%) showed clear variation in presence/absence between non stressed and stressed medium. The relative abundance of these transcripts was then analysed by reverse northern. Only two out of these 33 genes showed significant opposite behaviour between both techniques. The identification and characterization of water-deficit responsive genes in roots provide the emergence of physiological understanding of the patterns of gene expression and regulation involved in the drought stress response of maritime pine.

  2. Renewable maritime energies. Facing the 2020 target, will the Sea Serpent emerge at last?

    International Nuclear Information System (INIS)

    2009-01-01

    Dealing with the production of renewable energy in maritime environments, a series of articles comments the activities of various French organisations in this area: research organisations like Ifremer or the Ecole Centrale de Nantes (an engineering school), public organisations like the ADEME, private or public companies like Total, EDF, GDF, Enertrag in the search or in the development of technologies aimed at the production of energy by different methods: wind energy (with offshore wind farm projects), tidal energy, maritime biomass energy, osmotic energy, sea thermal energy (notably in Reunion Island), tidal energy or the energy which could be generated from waves or from the swell. As the first article recalls it, the objective is to reach the objective of 23% of renewable energies in the French consumption by 2020. Some assessments of the French potential production in these different domains are given, as well as prospective data about the capacities of European countries in the large scale development of offshore wind farms as recommended by the European Commission. These activities and some difficulties (for the first French offshore wind turbine project) are also discussed in interviews with engineers, researchers or company managers

  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. Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Task 5 Report: Generation IV Reactor Virtual Mockup Proof-of-Principle Study

    International Nuclear Information System (INIS)

    Timothy Shaw; Anthony Baratta; Vaughn Whisker

    2005-01-01

    Task 5 report is part of a 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. Created a virtual mockup of PBMR reactor cavity and discussed applications of virtual mockup technology to improve Gen IV design review, construction planning, and maintenance planning

  6. Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Task 5 Report: Generation IV Reactor Virtual Mockup Proof-of-Principle Study

    Energy Technology Data Exchange (ETDEWEB)

    Timothy Shaw; Anthony Baratta; Vaughn Whisker

    2005-02-28

    Task 5 report is part of a 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. Created a virtual mockup of PBMR reactor cavity and discussed applications of virtual mockup technology to improve Gen IV design review, construction planning, and maintenance planning.

  7. Helicopter Maritime Environment Trainer: Maintenance Manual (Simulateur D’Entrainement Virtuel pour Helicoptere Maritime: Manual D’Entretien)

    Science.gov (United States)

    2011-06-01

    equipment and various positioning devices. NOTE With electrical power removed, the moveable platform remains in position largely due to the...ensure that the platform is moved to its parked position before mounting or dismounting the moveable platform. 3.2.3.2.2 Collective Pitch Lever The...chaining” connection, input-level controls and a mono-mode. It provides the following major features: • Two channel stereo or bridged mono switch • All

  8. Helicopter Maritime Environment Trainer: Operator Manual (Simulateur D’Entrainement Virtuel Maritime: Manuel de L’Operateur)

    Science.gov (United States)

    2011-06-01

    PROCESS OF DEVELOPING THE STRETCH POTENTIAL OF THIS TECHNOLOGY ". WITH THE ASSISTANCE OF PILOTS, THE HDLS WAS RE-CONFIGURED (HelMET, PILOT/INSTRUCTOR...97 4.3.1.9 HelMET IOS FLYCO Control Panel Area ............................... 100 4.3.1.10 HelMET IOS NFC Control Panel...98 Figure 19 . HelMET IOS Window with NFC Control Panel

  9. Maritime Coastlines: A New Ecosystem for Dendrochronological Analysis

    Science.gov (United States)

    Tucker, C. S.; Trepanier, J. C.; Harley, G. L.; DeLong, K. L.

    2017-12-01

    Research at the forefront of dendrochronology is investigating the usefulness of coastal tree-ring chronologies as climatic and environmental proxies. We hypothesize trees growing on the margin of freshwater-brackish environments are sensitive to climate variability similar to those in other climatically stressed regions (e.g., the arid Southwest U.S.) and can be used for dendrochronological analyses. This study explores rings from Pinus elliottii var. elliottii trees in the Grand Bay National Estuarine Research Reserve (GBNERR) growing less than 2 km from the Gulf of Mexico. Interseries correlations (r=0.68, p<0.01) and average mean sensitivities (r=0.57, p<0.01) for these trees are higher than most Southeast U.S. tree-ring studies. P. elliottii growth in this study is significantly correlated to Standardized Precipitation-Evapotranspiration Index (SPEI; r=0.5, p<0.05) during this species' growing season (May-October). Though precipitation and temperatures in the region are favorable for tree growth, coastal processes (e.g., saltwater intrusion, brackish groundwater, aerosolized salt) are substantial regulators of growth to the maritime trees at GBNERR, which makes individuals sensitive to climate variability. Significant correlations with pressure regimes during these trees' growing season suggest that as pressure decreases over the northern Gulf of Mexico coast, thus producing precipitation, pressure increases over the Caribbean. Previous research proposes that the Central U.S. receives important precipitation sources from the Caribbean through the `Maya Express', and our results show that this precipitation may also be important to northern Gulf of Mexico coastal ecosystems. P. elliottii growth in this study is significantly correlated to tropical cyclone storm surge and is not significantly correlated to tropical cyclone high winds, which supports other studies' hypotheses that Pinus spp. are susceptible to saltwater intrusion and not high winds. Additionally

  10. Investigating Antecedents of Task Commitment and Task Attraction in Service Learning Team Projects

    Science.gov (United States)

    Schaffer, Bryan S.; Manegold, Jennifer G.

    2018-01-01

    The authors investigated the antecedents of team task cohesiveness in service learning classroom environments. Focusing on task commitment and task attraction as key dependent variables representing cohesiveness, and task interdependence as the primary independent variable, the authors position three important task action phase processes as…

  11. Energy Efficient Task Light

    DEFF Research Database (Denmark)

    Logadottir, Asta; Ardkapan, Siamak Rahimi; Johnsen, Kjeld

    2014-01-01

    The objectives of this work is to develop a task light for office lighting that fulfils the minimum requirements of the European standard EN12464 - 1 : Light and lighting – Lighting of work places, Part 1: Indoor workplaces and the Danish standard DS 700 : Lys og belysning I arbejdsrum , or more...... specifically the requirements that apply to the work area and the immediate surrounding area. By providing a task light that fulfils the requirements for task lighting and the immediate surrounding area, the general lighting only needs to provide the illuminance levels required for background lighting...... and thereby a reduction in installed power for general lighting of about 40 % compared to the way illuminance levels are designed in an office environment in Denmark today. This lighting strategy is useful when the placement of the task area is not defined in the space before the lighting is design ed...

  12. Aplikasi Soft System Methodology dalam Analisis Diplomasi Angkatan Laut Indonesia melalui Pengiriman Satgas Maritim TNI Pada Misi UNIFIL MTF

    Directory of Open Access Journals (Sweden)

    Trio Sirmareza

    2017-05-01

    Full Text Available This article discusses Indonesia's participation in UNIFIL MTF, as a way for the country to exercise its naval diplomacy. Using Ken Booth's theory of naval diplomacy as analytical framework and employing the Soft System Methodology model, this article seeks to explain Indonesia's motives for joining UNIFIL MTF, namely the maintenance of the world peace as stipulated by the country's constitution and concomitantly, Indonesia's interest to enhance its global role as middle power. The application of naval diplomacy and Soft System Methodology in this article provides a theoretical and methodological-informed analysis in scrutinising Indonesia's participation in international peacekeeping operation. By doing so, this article attemps to fill the lacuna in the existing body of works which commonly neglect the theoretical basis and/or sound methodological framework in their observation and evaluation concerning the topic at hand. The article finds that Indonesian maritime task force in UNIFIL MTF has flexibility, mobility, projection ability and access potential to carry out Indonesia's diplomatic agenda. However, Indonesia still needs to consider improving the capacity of its maritime task force in order for it to function as maximum signifier for Indonesia's prestige and foreign policy commitment.

  13. Non-Traditional Security Threats in the Border Areas: Terrorism, Piracy, Environmental Degradation in Southeast Asian Maritime Domain

    Science.gov (United States)

    Dabova, E. L.

    2013-11-01

    In addition to facilitating peaceful trade and economic development, sovereign territory, territorial waters and international waters are being used by various criminal groups that pose threats to governments, businesses and civilian population in Southeast Asia. Nonstate criminal maritime activities were not receiving appropriate attention as they were overshadowed by traditional military security challenges. Yet more and more frequently, the non-traditional actors challenge lines of communication, jeopardize access to strategic resources, complicate traditional defence tasks, and harm the environment. Understanding the nature of non-traditional threats, and the ways to combat them, requires international legal, historical and political science analysis within a united problem-oriented approach. A fair critique to pure interest, power and knowledge -based theories of regime formation was developed by E.K. Leonard's1, who explained the evolution of the international system from the global governance perspective. The present study is based on the premise that pure nation-state approaches are incapable of providing a theoretical ground for addressing the growing influence of international criminal networks in South East Asia. From an international relations theory perspective, the author of this study agrees with D.Snidal2 that the hegemonic stability theory has "limits" and is insufficient in describing modern challenges to sustainable international security regime, including non-traditional threats, where collective action is more efficient from an interest and capability standpoint. At the same time the author of this study does not share the viewpoint on "marginalization"3 of international law in current international order due to its fragmentation and regionalization4 and "global power shifts"5 . The United Nations, as a global institution at the top of the vertical hierarchy of international legal order, and the EU as an example of "self-contained" regime along

  14. Tâches et coopération dans deux dispositifs universitaires de formation à distance Tasks and cooperation within two university level open and distance learning environments

    Directory of Open Access Journals (Sweden)

    François Mangenot

    2003-06-01

    Full Text Available Cette étude sur les apprentissages à distance via Internet au niveau universitaire se focalise sur deux aspects : les tâches d'apprentissage et les formes d'apprentissage collectif. Elle s'appuie sur l'étude qualitative de deux formations ouvertes et à distance ayant fonctionné en grandeur réelle, l'une sur un mode entièrement à distance, l'autre sur un mode hybride. Après une discussion sur le terme très polysémique de "tâche", le corpus est présenté, puis une typologie des tâches est proposée ; une réflexion sur les notions d'apprentissage collectif, coopératif et collaboratif clôt le propos, tentant de caractériser les relations entre les étudiants lors de la réalisation des tâches. Bien que les interactions entre étudiants ne relèvent certainement pas de la collaboration, on avance néanmoins qu'elles peuvent être étudiées dans le cadre des apprentissages collaboratifs assistés par ordinateur.This study deals with distance learning through the Internet in university context. The focus lies on two topics: learning tasks and collective learning. It is based on the qualitative case study of two open and distance learning (ODL courses, one case of fully distance learning and one case of blended learning. After having discussed the concept of "task", the data are then presented and a task typology is proposed. The paper ends with a discussion about collective, cooperative and collaborative learning, trying to characterize the kind of relationship between the students during the fulfillment of the tasks. Although it seems impossible to consider the interactions between the students as collaboration, we suggest that studying them nevertheless belongs to the domain of computer supported collaborative learning.

  15. Predictors of maternal language to infants during a picture book task in the home: Family SES, child characteristics and the parenting environment.

    Science.gov (United States)

    Vernon-Feagans, Lynne; Pancsofar, Nadya; Willoughby, Mike; Odom, Erica; Quade, Alison; Cox, Martha

    2008-01-01

    This study investigated the contribution of child characteristics and parenting environment to the relationship between family SES/demographic characteristics and maternal language to infants.1157 children were drawn from a representative sample of 1292 infants born to mothers in rural Appalachian counties and rural counties in southern minority U.S. communities. Mothers and their 6-8 month old babies were videotaped at home while talking about a wordless picture book. Mothers' language output and complexity were analyzed. Child temperament, age, and parenting environment (knowledge of child development and observed mother-child engagement) were predictors of maternal language. Furthermore, their inclusion reduced the magnitude of the association between demographic characteristics and maternal language. Tests of mediation suggested that the parenting environment partially mediates the relationship between SES/demographic characteristics and maternal language. Findings are discussed with respect to identifying proximal processes that explain how SES may exert its influence on the language of young children.

  16. A System Architecture for a Transnational Data Infrastructure supporting Maritime Spatial Planning

    DEFF Research Database (Denmark)

    Hansen, Henning Sten; Reiter, Ida Maria; Schrøder, Anne Lise

    2017-01-01

    The use of the seas and oceans is overall regulated by the United Nations through the UN Convention on the Law of the Sea, which defines the rights and responsibilities. However, with the rapidly increasing use of the sea and oceans it is inevitable that conflicts may arise. Accordingly, there has...... been an increasing international recognition of the need to manage human activities that influence the marine environment and its ecosystems in an integrated, cross-sectoral manner. Recently, Maritime Spatial Planning (MSP) has gained significant attention as a new paradigm aiming at minimising...... the conflicts among different sea uses through involving various stakeholders and sectors while aiming for sustainable growth. The aim of this research is to build a conceptual model for a Data Infrastructure to support marine space in a transnational context addressing the challenges related to the increasing...

  17. 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

    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......, and this presents a problem in unique marine environments. Such situations are especially conducive to energy-saving strategies using variable frequency drives (VFDs) in centrifugal load service. This paper presents the design and results of applying variable frequency constant pressure technology in closed system...

  18. 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...... for a comprehensive approach, as well as the difficulties of translating the potential for comprehensiveness into practice (as will be shown, important aspects of the problem remain largely unaddressed). What is more, we also need to appreciate that, even if these gaps represent a ‘failure’ to deliver a comprehensive...... 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...

  19. 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.

  20. On Importance of the Hypertext Use in Maritime English Teaching

    Directory of Open Access Journals (Sweden)

    Z. Bezhanovi

    2015-09-01

    Full Text Available The aim of the given paper is to present a set of the advantages and benefits expected by the application of the hypertext technologies in Maritime English teaching. Specification of minimum standard of competence for the officers on board the ships of 500 gross tonnage or more requires “adequate knowledge of English to enable the officer to use charts and other nautical publications, to understand meteorological information and messages concerning ship’s safety and operation, to communicate with other ships, coast stations and Vessel Traffic Service centres and to perform the officer’s duties with a multilingual crew, including the ability to use and understand the Standard Marine Communication Phrases” IMO Publishing (2011. Thus, a wide range of the results to be achieved during the process of Maritime Education and Training implementation related to the language competence development needs application of modern approaches actively used in different fields of skills - oriented education.

  1. 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.

  2. Maritime Trade Warfare Against a Modern Power

    Science.gov (United States)

    2013-05-20

    Malaysian and Singaporean support. Operational Environment The previous sections have assessed that an oil embargo would be effective at influencing...will be addressed. The first approach is to stop the trade at its source. This approach forms the foundation of many contemporary sanctions. Under...antisubmarine warfare capable ships, could be sufficient to defend against forces attempting to break a blockade, and a carrier battle group in the Indian Ocean

  3. 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.

  4. Japan in Maritime Asia: Security, Commerce, and Sovereignty

    Directory of Open Access Journals (Sweden)

    Philip Thai

    2015-12-01

    Full Text Available Catherine L. Phipps, Empires on the Waterfront: Japan’s Ports and Power, 1858–1899. Cambridge, MA: Harvard University Asia Center, 2015. 308 pp. $39.95 (cloth. Noell Wilson, Defensive Positions: The Politics of Maritime Security in Tokugawa Japan. Cambridge, MA: Harvard University Asia Center, 2015. 258 pp. $39.95 (cloth. Historiography on Japan’s place within the world of maritime Asia has undergone dramatic reinterpretation in recent decades. Scholars of the early modern era have thoroughly demolished the shibboleth of sakoku (“closed country”, the supposed isolation of Tokugawa Japan before the sudden arrival of Western gunboats in the 1850s. The active pursuit of diplomatic and commercial ties by shogun and daimyo alike embedded Japan firmly within global circuits of exchange (e.g., Hellyer 2010; Toby 1984. Scholars of the modern era, for their part, have been inspired by the “imperial turn” to put overseas empires at the heart of national narratives. Bookending the Tokugawa and Meiji periods, the two studies under review here push the frontiers of this research agenda further. Noell Wilson’s political history focuses on the buildup of domainal defense on the coast and the devolution of shogunal monopoly on violence. At the heart of this dialectical relationship was the “Nagasaki system”—the security arrangements that originated in the eponymous port and were eventually implemented throughout Japan. Catherine Phipps’s economic history examines the commercial expansion of Meiji Japan by tracing maritime networks of exchange, transportation, and information at multiple spatial scales. Forged in the crucible of Western imperialism, such ties simultaneously compromised the sovereignty of the nation while laying the foundations for empire. Both works offer compelling cases for the centrality of maritime relations in understanding core issues in Japanese history...

  5. An Understanding of The Maritime Silk Road International Strategic Importance

    Institute of Scientific and Technical Information of China (English)

    Lin; Hongyu

    2015-01-01

    "The Maritime Silk Road"conception has a very significant international strategic importance,and to China,will certainly play a great role in promoting its economic development,which is only on the surface,and an in-depth reading is that it is a top-level strategic design,whose strategic role with the passage of time will be enlarged.In his address to Indonesian National Assembly in October 2013,President Xi

  6. Ad hoc Sensor Networks to Support Maritime Interdiction Operations

    OpenAIRE

    Osmundson, John; Bordetsky, Alex

    2014-01-01

    Networking sensors, decision centers, and boarding parties supports success in Maritime Interdiction Operations. Led by a team from Naval Post-graduate School (NPS), experiments were conducted in 2012 to test the use of ad-hoc, self-forming communication networks to link sensors, people, and decision centers. The experiments involved international participants and successfully shared valuable biometric and radiological sensor data between boarding parties and decis...

  7. 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...

  8. Optimisation of steam extraction of oil from maritime pine needles

    OpenAIRE

    Rezzoug , Sid-Ahmed

    2009-01-01

    International audience; Essential oil from pine maritime needles is generally extracted by steam distillation process at atmospheric pressure for more than one hour, or by solvent extraction process. In the last decade, there has been an increasing demand for new extraction techniques enabling automation, shorter extraction time and reduced consumption of organic solvent. In this study, Response Surface Methodology (RSM) was used to evaluate the effects of two processing parameters of an alte...

  9. Memento. Maritime transport of MOX fuels from Europe to Japan

    International Nuclear Information System (INIS)

    1999-07-01

    The maritime transport of MOX fuels from Europe to Japan represents the last of the 3 steps of transport of the nuclear fuel reprocessing-recycling program settled between ORC (Japan), BNFL (UK) and Cogema (France). This document summarizes the different aspects of this program: the companies concerned, the physical protection measures, the US-Japan agreements (accompanying warship), the in-depth safety, the handling of MOX fuels (containers and ships), and the Japan MOX fuel needs. (J.S.)

  10. Perspectives on Maritime Strategy: Essays from the Americas

    Science.gov (United States)

    2008-08-01

    Instituto de Empresas de España and graduated from the Center for Hemispheric Defense Studies at the National Defense University in Washington. Captain...Base (1998–99), the Mato Grosso Flotilla (1994), and fluvial transport boat Piraim (1983). Captain Luiz Carlos de Carvalho ROTH is retired from the...Cooperation 25 CAPTAIN CLAUDIO ROGERIO DE ANDRADE FLÔR, BRAZILIAN NAVY (RETIRED) CHAPTER FIVE Toward a Maritime Strategy 33 REAR ADMIRAL MIGUEL ANGEL

  11. On Importance of the Hypertext Use in Maritime English Teaching

    OpenAIRE

    Z. Bezhanovi; L. Khardina; K. Zarbazoia

    2015-01-01

    The aim of the given paper is to present a set of the advantages and benefits expected by the application of the hypertext technologies in Maritime English teaching. Specification of minimum standard of competence for the officers on board the ships of 500 gross tonnage or more requires “adequate knowledge of English to enable the officer to use charts and other nautical publications, to understand meteorological information and messages concerning ship’s safety and operation, to communicate ...

  12. A Spatiotemporal Clustering Approach to Maritime Domain Awareness

    Science.gov (United States)

    2013-09-01

    reveal two clusters , -step two are shown in Figure 12 o, colored green and cyan and l ically clustered , ed. c1 and c2 , . In abeled c1...development,” Center for Development Research , University of Bonn, Bonn, Germany, Working Paper Nr. 17, 2006. 104 THIS PAGE INTENTIONALLY LEFT... CLUSTERING APPROACH TO MARITIME DOMAIN AWARENESS by Kristofer A. Tester September 2013 Thesis Advisor: Jim Scrofani Thesis Co-Advisor

  13. 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.

  14. Europe in global maritime flows: Gateways, forelands, and subnetworks

    OpenAIRE

    Ducruet , César; Joly , Olivier; Le Cam , Marine

    2014-01-01

    The position of Europe in maritime flows is demonstrated by the connections of its port gateways with the rest of the world. Such connections vary from one port to another in terms of traffic concentration and geographic coverage, dependent on multiple factors including origin-destination time and cost factors, shipper and ocean carrier decisions, and the size, quality, and specialization of local port infrastructures. A key research challenge is therefore to unravel the relationships between...

  15. 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...

  16. Maritime Piracy: Socio-Economic, Political, and Institutional Determinants

    OpenAIRE

    Thomas Gries; Margarete Redlin

    2014-01-01

    Over the last twenty years piracy has become an increasing threat. Yet there are only very few econometric studies that examine under which conditions this phenomenon arises. As the number of maritime piracy and armed robbery incidents is characterized as count data and exhibits overdispersion, we apply random-effects negative binomial regressions for a panel dataset covering the period 1991-2010. Our results indicate that poor socio-economic, political, and institutional conditions in the ho...

  17. 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...

  18. Piracy and Maritime Crime: Historical and Modern Case Studies

    Science.gov (United States)

    2010-01-01

    Vietnamese Boat People 97 by Bruce A. Elleman CHAPTER SEVEN Piracy and Armed Robbery in the Malacca Strait: A Problem Solved? 109 by Catherine Zara Raymond...thereby dramatically increasing overall cases of piracy within the region.” Catherine Zara Raymond analyzes piracy and armed robbery in the Malacca...Asia-Pacific, ed. Joshua Ho and Catherine Zara Raymond (Singapore: World Scientific, 2005), p. 259. 3. International Maritime Bureau [hereafter IMB

  19. Effects of Mode of Target Task Selection on Learning about Plants in a Mobile Learning Environment: Effortful Manual Selection versus Effortless QR-Code Selection

    Science.gov (United States)

    Gao, Yuan; Liu, Tzu-Chien; Paas, Fred

    2016-01-01

    This study compared the effects of effortless selection of target plants using quick respond (QR) code technology to effortful manual search and selection of target plants on learning about plants in a mobile device supported learning environment. In addition, it was investigated whether the effectiveness of the 2 selection methods was…

  20. Gender, social norms, and survival in maritime disasters

    Science.gov (United States)

    Elinder, Mikael; Erixson, Oscar

    2012-01-01

    Since the sinking of the Titanic, there has been a widespread belief that the social norm of “women and children first” (WCF) gives women a survival advantage over men in maritime disasters, and that captains and crew members give priority to passengers. We analyze a database of 18 maritime disasters spanning three centuries, covering the fate of over 15,000 individuals of more than 30 nationalities. Our results provide a unique picture of maritime disasters. Women have a distinct survival disadvantage compared with men. Captains and crew survive at a significantly higher rate than passengers. We also find that: the captain has the power to enforce normative behavior; there seems to be no association between duration of a disaster and the impact of social norms; women fare no better when they constitute a small share of the ship’s complement; the length of the voyage before the disaster appears to have no impact on women’s relative survival rate; the sex gap in survival rates has declined since World War I; and women have a larger disadvantage in British shipwrecks. Taken together, our findings show that human behavior in life-and-death situations is best captured by the expression “every man for himself.” PMID:22847426