Power law of distribution of emergency situations on main gas pipeline

Science.gov (United States)

Voronin, K. S.; Akulov, K. A.

2018-05-01

The article presents the results of the analysis of emergency situations on a main gas pipeline. A power law of distribution of emergency situations is revealed. The possibility of conducting further scientific research to ensure the predictability of emergency situations on pipelines is justified.

The optimization of nuclear power plants operation modes in emergency situations

Science.gov (United States)

Zagrebayev, A. M.; Trifonenkov, A. V.; Ramazanov, R. N.

2018-01-01

An emergency situations resulting in the necessity for temporary reactor trip may occur at the nuclear power plant while normal operating mode. The paper deals with some of the operation c aspects of nuclear power plant operation in emergency situations and during threatened period. The xenon poisoning causes limitations on the variety of statements of the problem of calculating characteristics of a set of optimal reactor power off controls. The article show a possibility and feasibility of new sets of optimization tasks for the operation of nuclear power plants under conditions of xenon poisoning in emergency circumstances.

The power situation in Mid-Norway

International Nuclear Information System (INIS)

2006-01-01

The strained power situation in Mid-Norway is in broad terms an energy problem, and the situation is especially precarious in the county of Moere og Romsdal. There is a risk that even in normal years, there will be insufficient energy supply unless new measures are implemented. There is a 50 percent chance that the situation will become more strained than in normal years. In the long term there is a possibility to increase the capacity of the system by increasing the import capacity as well as the production, but this is not realistic before 2011. A gas work at Tjeldbergodden can at the earliest be operative in 2011. The gas work at Skogn can at the earliest be operative in 2009, and needs to be accompanied by fortifications in the distribution net in order to help the situation in Moere og Romsdal. In short term the import capacity to the region will be reduced, and there are limits to how much new production capacity that can be taken in. Therefore, measures have to be made in order to reduce the consumption and increase the import. To make sure the measures will have satisfactory effect, they need to be implemented soon, so they can have effect over a longer period. It is limited how big reduction one can expect from the normal supply consumption. It is estimated that the consumption can be reduced by 10 percent at the maximum, by the use of high prices in the area, but this requires that the consumers expect a prolonged level of high energy prices at 0,80 Nok/kWh, and in addition short-term price fluctuations. Energy-intensive industry may find it profitable to reduce the consumption at prices below 0,80 Nok/kWh, but the potential for this is probably small in Moere og Romsdal. In a dry year it will hardly be possible to meet the energy demand without resorting to measures and in worst case rationing. The costs of rationing are substantially higher than the cost of backup power plants

Shift in power during an interview situation: methodological reflections inspired by Foucault and Bourdieu.

Science.gov (United States)

Aléx, Lena; Hammarström, Anne

2008-06-01

This paper presents methodological reflections on power sharing and shifts of power in various interview situations. Narratives are said to be shaped by our attempts to position ourselves within social and cultural circumstances. In an interview situation, power can be seen as something that is created and that shifts between the interviewer and the interviewed. Reflexivity is involved when we as interviewers attempt to look at a situation or a concept from various perspectives. A modified form of discourse analysis inspired by subject positioning was used to reflect on power relations in four different interview situations. The analyses indicate that reflection on the power relations can lead to other forms of understanding of the interviewee. The main conclusion that can be drawn from this study is that power relations are created within an interview situation and therefore it is important to be aware of dominant perspectives. Researchers and nurses face the challenge of constantly raising their level of consciousness about power relationships, and discursive reflexivity is one way of doing this. Thus, reflexivity is an important part of the qualitative research process.

Modeling Control Situations in Power System Operations

DEFF Research Database (Denmark)

Saleem, Arshad; Lind, Morten; Singh, Sri Niwas

2010-01-01

for intelligent operation and control must represent system features, so that information from measurements can be related to possible system states and to control actions. These general modeling requirements are well understood, but it is, in general, difficult to translate them into a model because of the lack...... of explicit principles for model construction. This paper presents a work on using explicit means-ends model based reasoning about complex control situations which results in maintaining consistent perspectives and selecting appropriate control action for goal driven agents. An example of power system......Increased interconnection and loading of the power system along with deregulation has brought new challenges for electric power system operation, control and automation. Traditional power system models used in intelligent operation and control are highly dependent on the task purpose. Thus, a model...

Shielding measurements and augmentation for high power operations of FBTR

International Nuclear Information System (INIS)

Jose, M.T.; Baskar, S.; Viswanathan, S.; Balasundar, S.; Subramanian, V.; Ravi, T.; Sundaram, V.M.; Raghunath, V.M.; Varadarajan, S.; Jena, A.K.

1996-01-01

Fast breeder test reactor (FBTR) at Kalpakkam is a 40 MWt loop type fast reactor with sodium coolant. Since criticality in 1985, radiation surveys were carried out at all accessible locations at different power levels to find out the hot spots and evaluate the shielding adequacy. This paper gives the details of findings of these measurements, consequent changes in shielding, and the present status of dose profile after the augmentation of shielding. (author). 1 ref., 1 fig., 1 tab

Effect of power engineering on ecological situation in Yakutia

Energy Technology Data Exchange (ETDEWEB)

Nogovitsyn, D.; NLkolaeva, N.; Sheina, Z.; Sergeeva, L. [The V. P. Larionov Institute of Physical and Technical Problems of the North SB RAS (Russian Federation)

2011-07-01

Among a number of anthropogenic factors forming the intensity of technogenic pressure on the environment accompanied by worsening of environmental conditions the power engineering takes a special place. As the environmental problems of power are to a certain extent a 'mirror' of the whole environmental situation, the main attention is paid to the emissions of air pollutants and discharges of contaminants into water by power industry enterprises in the Republic of Sakha (Yakutia). (author)

Ecological Interface Design of Augmented Reality Display for Nuclear Power Plant Maintenance

International Nuclear Information System (INIS)

Kim, In; Seong, Poong Hyun

2008-01-01

The importance of maintenance in nuclear power plants (NPPs) has been emphasized through many researches. The goals of maintenance in nuclear power plants are not only to reduce the number of shutdowns which directly affects to the profit, but also to prevent accidents or incidents hence improves nuclear safety. It is known that reduction of the rate of human error in maintenance tasks can be achieved if maintenance personnel are properly supported by maintenance support systems. Among many proposed maintenance support system, the use of augmented reality (AR) has been proposed

Augmented Nonlinear Controller for Maximum Power-Point Tracking with Artificial Neural Network in Grid-Connected Photovoltaic Systems

Directory of Open Access Journals (Sweden)

Suliang Ma

2016-11-01

Full Text Available Photovoltaic (PV systems have non-linear characteristics that generate maximum power at one particular operating point. Environmental factors such as irradiance and temperature variations greatly affect the maximum power point (MPP. Diverse offline and online techniques have been introduced for tracking the MPP. Here, to track the MPP, an augmented-state feedback linearized (AFL non-linear controller combined with an artificial neural network (ANN is proposed. This approach linearizes the non-linear characteristics in PV systems and DC/DC converters, for tracking and optimizing the PV system operation. It also reduces the dependency of the designed controller on linearized models, to provide global stability. A complete model of the PV system is simulated. The existing maximum power-point tracking (MPPT and DC/DC boost-converter controller techniques are compared with the proposed ANN method. Two case studies, which simulate realistic circumstances, are presented to demonstrate the effectiveness and superiority of the proposed method. The AFL with ANN controller can provide good dynamic operation, faster convergence speed, and fewer operating-point oscillations around the MPP. It also tracks the global maxima under different conditions, especially irradiance-mutating situations, more effectively than the conventional methods. Detailed mathematical models and a control approach for a three-phase grid-connected intelligent hybrid system are proposed using MATLAB/Simulink.

Augmenting Locomotion in an Anthropomorphic System

Directory of Open Access Journals (Sweden)

Derek Wight

2005-02-01

Full Text Available A powered orthosis has applications ranging from assisting the elderly to augmenting astronauts. An assistive control scheme is developed that uses the force from a slave actuator to augment the force of a master actuator. This can be used to augment a closed-loop control scheme applied to the master actuator. Initially, actuator augmentation is explored both theoretically and experimentally using a simple mechanical system. The control scheme is then applied to a scale model of human lower limbs on a stationary bicycle to investigate the feasibility of a powered orthosis using pneumatic muscle actuators.

Development and Present Situation Analysis of Power Transformer State Maintenance

Science.gov (United States)

Lv, Sen; Li, Biao; Li, Huan

2018-02-01

The pivotal status of power transformer in the power system is one of the most important equipment. The safety and reliability of its operation is directly related to the safety and stability of power system. Based on the analysis of the present situation of power transformer state maintenance in home and abroad. The paper points out the deficiency of the current method and provides a theoretical basis for further research, which has a certain guiding significance.

Situation awareness and trust in computer-based procedures in nuclear power plant operations

Energy Technology Data Exchange (ETDEWEB)

Throneburg, E. B.; Jones, J. M. [AREVA NP Inc., 7207 IBM Drive, Charlotte, NC 28262 (United States)

2006-07-01

Situation awareness and trust are two issues that need to be addressed in the design of computer-based procedures for nuclear power plants. Situation awareness, in relation to computer-based procedures, concerns the operators' knowledge of the plant's state while following the procedures. Trust concerns the amount of faith that the operators put into the automated procedures, which can affect situation awareness. This paper first discusses the advantages and disadvantages of computer-based procedures. It then discusses the known aspects of situation awareness and trust as applied to computer-based procedures in nuclear power plants. An outline of a proposed experiment is then presented that includes methods of measuring situation awareness and trust so that these aspects can be analyzed for further study. (authors)

Situation awareness and trust in computer-based procedures in nuclear power plant operations

International Nuclear Information System (INIS)

Throneburg, E. B.; Jones, J. M.

2006-01-01

Situation awareness and trust are two issues that need to be addressed in the design of computer-based procedures for nuclear power plants. Situation awareness, in relation to computer-based procedures, concerns the operators' knowledge of the plant's state while following the procedures. Trust concerns the amount of faith that the operators put into the automated procedures, which can affect situation awareness. This paper first discusses the advantages and disadvantages of computer-based procedures. It then discusses the known aspects of situation awareness and trust as applied to computer-based procedures in nuclear power plants. An outline of a proposed experiment is then presented that includes methods of measuring situation awareness and trust so that these aspects can be analyzed for further study. (authors)

Augmentative biological control of arthropods in Latin America

NARCIS (Netherlands)

Lenteren, van J.C.; Bueno, V.H.P.

2003-01-01

Augmentative forms of biological control, where natural enemies are periodically introduced, are applied over large areas in various cropping systems in Latin America. About 25% of the world area under augmentative control is situated in this region. Well-known examples are the use of species of the

Experimental study on power augmentation of Savonius rotor; Savonius gata fusha no shutsuryoku zokyo ni kansuru jikkenteki kenkyu

Energy Technology Data Exchange (ETDEWEB)

Sato, S; Kikuchi, K; Ushiyama, I [Ashikaga Institute of Technology, Tochigi (Japan)

1997-11-25

Wind power now being used is mostly for power generation, and the power generating rotor is represented by the horizontal propeller type. The vertical type, such as Savonius rotor which uses drag force, may be used for special purposes. The Savonius rotor has been used for water pumping-up and ventilation for its characteristics of low rotational speed and high torque. The authors have proposed, based on the data collected by operating a wind mill of 10W, a method for reducing resistance by deflecting wind flowing onto the return bucket to augment drag force, in an attempt to make the system more functional. The Savonius rotor is equipped with a semi-cylindrical cover, and guide and side plates, to follow their effects. It is found that these plates work to augment power without needing expansion of sweeping area. 4 refs., 12 figs.

The situation of nuclear power in the world

International Nuclear Information System (INIS)

1995-03-01

This report presents a world panorama of nuclear power for electricity generation purposes. The economic aspects, the fuel cycle market, the reactor technology development, as well as environmental aspects are presented. This report is updated annually and the present issue covers the situation up to December 1993. (F.E.). 196 refs, 23 figs, 28 tabs

Contingency power for small turboshaft engines using water injection into turbine cooling air

Science.gov (United States)

Biesiadny, Thomas J.; Berger, Brett; Klann, Gary A.; Clark, David A.

1987-01-01

Because of one engine inoperative requirements, together with hot-gas reingestion and hot day, high altitude takeoff situations, power augmentation for multiengine rotorcraft has always been of critical interest. However, power augmentation using overtemperature at the turbine inlet will shorten turbine life unless a method of limiting thermal and mechanical stresses is found. A possible solution involves allowing the turbine inlet temperature to rise to augment power while injecting water into the turbine cooling air to limit hot-section metal temperatures. An experimental water injection device was installed in an engine and successfully tested. Although concern for unprotected subcomponents in the engine hot section prevented demonstration of the technique's maximum potential, it was still possible to demonstrate increases in power while maintaining nearly constant turbine rotor blade temperature.

Testing Situation Awareness Network for the Electrical Power Infrastructure

Directory of Open Access Journals (Sweden)

Rafał Leszczyna

2016-09-01

Full Text Available The contemporary electrical power infrastructure is exposed to new types of threats. The cause of such threats is related to the large number of new vulnerabilities and architectural weaknesses introduced by the extensive use of Information and communication Technologies (ICT in such complex critical systems. The power grid interconnection with the Internet exposes the grid to new types of attacks, such as Advanced Persistent Threats (APT or Distributed-Denial-ofService (DDoS attacks. When addressing this situation the usual cyber security technologies are prerequisite, but not sufficient. To counter evolved and highly sophisticated threats such as the APT or DDoS, state-of-the-art technologies including Security Incident and Event Management (SIEM systems, extended Intrusion Detection/Prevention Systems (IDS/IPS and Trusted Platform Modules (TPM are required. Developing and deploying extensive ICT infrastructure that supports wide situational awareness and allows precise command and control is also necessary. In this paper the results of testing the Situational Awareness Network (SAN designed for the energy sector are presented. The purpose of the tests was to validate the selection of SAN components and check their operational capability in a complex test environment. During the tests’ execution appropriate interaction between the components was verified.

Present situation and future prospects for French nuclear power plants

International Nuclear Information System (INIS)

Carle, R.

1984-01-01

The author depicts the present situation and future of the French nuclear power programme which has now become a major industrial reality after successful acceptance of a twofold challenge: the technical problem and that of training the personnel responsible for operating the power stations. The large number of nuclear plants now in operation and planned for the next few years makes electricity generated from nuclear power a ''new industrial reality'', which we must still learn to utilize to the best effect [fr

New situation and future of nuclear power plants

International Nuclear Information System (INIS)

Castejon, F.

2008-01-01

The situation of the nuclear power plants in the World is commented, making emphasis on the Spanish case. It is also pointed the difficulty of the nuclear industry to overcome the main caveats of this energy source: To guarantee the safety of the reactors, the management of the high radioactive level waste, and high investments necessary to build a nuclear power plant. These caveats have made that the public opinion is against the nuclear energy in Europe, and especially in Spain. It is difficult that a re launching of nuclear energy without the economical support of the governments, which guarantees the return of the investments. (Author) 7 refs

A Review of Quantitative Situation Assessment Models for Nuclear Power Plant Operators

International Nuclear Information System (INIS)

Lee, Hyun Chul; Seong, Poong Hyun

2009-01-01

Situation assessment is the process of developing situation awareness and situation awareness is defined as 'the perception of the elements in the environment within a volume of time and space, the comprehension of their meaning and the projection of their status in the near future.' Situation awareness is an important element influencing human actions because human decision making is based on the result of situation assessment or situation awareness. There are many models for situation awareness and those models can be categorized into qualitative or quantitative. As the effects of some input factors on situation awareness can be investigated through the quantitative models, the quantitative models are more useful for the design of operator interfaces, automation strategies, training program, and so on, than the qualitative models. This study presents the review of two quantitative models of situation assessment (SA) for nuclear power plant operators

Contingency power for a small turboshaft engine by using water injection into turbine cooling air

Science.gov (United States)

Biesiadny, Thomas J.; Klann, Gary A.

1992-01-01

Because of one-engine-inoperative (OEI) requirements, together with hot-gas reingestion and hot-day, high-altitude take-off situations, power augmentation for multiengine rotorcraft has always been of critical interest. However, power augmentation by using overtemperature at the turbine inlet will shorten turbine life unless a method of limiting thermal and mechanical stress is found. A possible solution involves allowing the turbine inlet temperature to rise to augment power while injecting water into the turbine cooling air to limit hot-section metal temperatures. An experimental water injection device was installed in an engine and successfully tested. Although concern for unprotected subcomponents in the engine hot section prevented demonstration of the technique's maximum potential, it was still possible to demonstrate increases in power while maintaining nearly constant turbine rotor blade temperature.

Augmented Reality Tower Technology Assessment

Science.gov (United States)

Reisman, Ronald J.; Brown, David M.

2009-01-01

Augmented Reality technology may help improve Air Traffic Control Tower efficiency and safety during low-visibility conditions. This paper presents the assessments of five off-duty controllers who shadow-controlled' with an augmented reality prototype in their own facility. Initial studies indicated unanimous agreement that this technology is potentially beneficial, though the prototype used in the study was not adequate for operational use. Some controllers agreed that augmented reality technology improved situational awareness, had potential to benefit clearance, control, and coordination tasks and duties and could be very useful for acquiring aircraft and weather information, particularly aircraft location, heading, and identification. The strongest objections to the prototype used in this study were directed at aircraft registration errors, unacceptable optical transparency, insufficient display performance in sunlight, inadequate representation of the static environment and insufficient symbology.

MARCS: Mobile Augmented Reality for Cybersecurity

OpenAIRE

Mattina, Brendan Casey

2017-01-01

Network analysts have long used two-dimensional security visualizations to make sense of network data. As networks grow larger and more complex, two-dimensional visualizations become more convoluted, potentially compromising user situational awareness of cyber threats. To combat this problem, augmented reality (AR) can be employed to visualize data within a cyber-physical context to restore user perception and improve comprehension; thereby, enhancing cyber situational awareness. Multiple gen...

Work Analysis of the nuclear power plant control room operators (II): The classes of situation

International Nuclear Information System (INIS)

Alengry, P.

1989-03-01

This report presents a work analysis of nuclear power plant control room operators focused on the classes of situation they can meet during their job. Each class of situation is first described in terms of the process variables states. We then describe the goals of the operators and the variables they process in each class of situation. We report some of the most representative difficulties encountered by the operators in each class of situation. Finally, we conclude on different topics: the nature of the mental representations, the temporal dimension, the monitoring activity, and the role of the context in the work of controlling a nuclear power plant [fr

Accident assessment under emergency situation in Daya Bay nuclear power station

International Nuclear Information System (INIS)

Yang Ling; Chen Degan; Lin Shumou; Fu Guohui

2004-01-01

The accident assessment under emergency situation includes the accident status evaluation and its consequence estimation. This paper introduces evaluation methods for accident status and its assistant computer system (SESAME-GNP) utilized during the emergency situation in Guangdong Daya Bay Nuclear Power Station (GNPS) in detail. At the same time, an improved accident consequence estimation system in GNPS (RACAS-GNP) is briefly described. With the improvement of the accident assessment systems, the capability of emergency response in GNPS is strengthened

Inventory of stress situations in nuclear power plants

International Nuclear Information System (INIS)

Saint-Jean, T.

1986-04-01

Anxious to pursue an in-depth analysis of stress phenomena in nuclear power plants in order to offer utilities appropriate solutions, Electricite de France and the Commissariat a l'Energie Atomique have jointly asked the Laboratoire de Psychologie du Travail to prepare an inventory of stress situations in nuclear electricity-generating centers. This document describes the approach used, the main concepts which have served as guidelines, and the methods of interpreting the results obtained through observations and questionnaires

The HART I augmented electric gun facility

International Nuclear Information System (INIS)

Fikse, D.A.; Ciesar, J.A.; Wehrli, H.A.; Rimersma, H.; Docherty, E.F.; Pipich, C.W.

1991-01-01

This paper reports on an augmented electric gun system that has been commissioned. This system, called HART I (Hypervelocity Augmented Railgun Test), is built around a double augmented rail arrangement with a 1.27-cm square bore. It is powered by the SUVAC II 5.6-MJ distributed capacitor power supply. This arrangement allows operation in a simple, series augmented, or transaugmented gun system configuration. The objective of this facility is to perform materials research augmentation studies, and armature development in the 10-km/s regime. Armature masses of 2 to 4 g will be accelerated in a 4-m long barrel. Baseline bore materials will begin with conventional G9/GlidCop systems and then move into pyrolytic boron nitride/refractory materials. Hybrids, plasma, and ablation stabilized armature systems are planned. The gun system is instrumented with plasma and rail B probes for inbore velocity measurements. In addition, breech and muzzle voltages, currents, and external velocities are measured. The HART I system is currently performing hypervelocity experiments to verify the augmentation models

Method and system for conserving power in a telecommunications network during emergency situations

Energy Technology Data Exchange (ETDEWEB)

Conrad, Stephen H [Algodones, NM; O' Reilly, Gerard P [Manalapan, NJ

2011-10-11

Disclosed is a method and apparatus for conserving power in a telecommunications network during emergency situations. A permissible number list of emergency and/or priority numbers is stored in the telecommunications network. In the event of an emergency or power failure, input digits of a call to the telecommunications network are compared to the permissible number list. The call is processed in the telecommunications network and routed to its destination if the input digits match an entry in the permissible number list. The call is dropped without any further processing if the input digits do not match an entry in the permissible number list. Thus, power can be conserved in emergency situations by only allowing emergency and/or priority calls.

Present situation, problems and solutions of China's biomass power generation industry

International Nuclear Information System (INIS)

Liu, Jicheng; Wang, Sijia; Wei, Qiushuang; Yan, Suli

2014-01-01

With the reduction of global oil reserves, developing renewable energy has become an important issue for each country. Biomass power is an important kind of clean energy, as it has abundant resource and is environmental friendly. In the past few years, China biomass power industry has developed rapidly accompanied with some problems. This paper analyzes the current situation of China biomass power generation from several aspects such as power structure, resource distribution, investment strength, and policy environment, etc. We focus on the problems existed in practical operation and analyze the outstanding problems. At last, this paper offers several suggestions for future development on the relevant fields, such as cost, strategic planning and policy. - Highlights: • Review and analyze the internal and external environment of biomass power in China. • Summarize and classify policies of China biomass power according to time sequence. • Describe the distribution of biomass resources in China accurately on the map. • Use data to draw a picture for grasping current situation. • Provide valuable suggestions for practitioners to improve their business strategies

Present situation of floating nuclear power plants

Energy Technology Data Exchange (ETDEWEB)

Sakurai, A [Central Research Inst. of Electric Power industry, Tokyo (Japan)

1975-08-01

The present situation of investigation and the future problems of floating nuclear power plants in Japan are examined, referring to those in USA. The committee report on a new power generation system in 1970 is quoted. In this report, the site conditions are supposed to be 5 km offshore, 100m water depth, 60 m/sec wind velocity, 10 m wave height, 200 m wave length, 12 seconds wave period 0.2 g earthquake acceleration, and 2.5 knots tide current. The semisubmersible hull of double construction 15 m under water is employed. A pair of 1,000,000 kW BWR reactors are utilized. A sea water desalting unit using bleed steam from turbines is installed. The solid radioactive wastes packed in drums are disposed in the sea. The design and cost estimation were made. The names of the organizations who have made investigation in this field, namely the Civil Engineering Society, the Sience and Technology Agency and other several centers, are reported. The Chubu Electric Power Company is forwarding its project. Referring to the investigations in USA, the project of Atlantic nuclear power station unit is described. A report of plant design has been submitted by O.P.S. to United States Atomic Energy Commission in 1973. The Coastal Area Facilities Act was instituted in New Jersey in 1973. Although the Atlantic nuclear power station has been postponed, it is the most feasible project. For the realization of a floating nuclear power plant in Japan, investigation must be started on the ground construction that can endure the construction of breakwater in water depth of 14 to 30 meter.

Augmented reality for improved communication of construction and maintenance plans in nuclear power plants

International Nuclear Information System (INIS)

Sorensen, Soren S.

2010-01-01

The purpose of implementing Augmented Reality, AR, in the planning, construction and maintenance of Nuclear Power Plants is to secure strict control, precise and correct constructions, exact execution of assignments and heightened safety at all levels. Communication of construction plans to ensure precise and correct assembly of structural elements is essential in all building projects. This is especially crucial in the construction of nuclear plants and installation of new components. The current ways in which construction plans are communicated, blueprints, 3D digital models and written descriptions all embody the need for significant levels of abstraction and interpretation, and are thus both difficult to understand and can lead to misinterpretations. A simulation system with full scale three dimensional models experienced in the physical setting where operations are to take place would bring operators closer to the real life assignments. Augmented Reality is a visualization technology that provides this motivation. (author)

Application of Synchrophasor Measurements for Improving Situational Awareness of the Power System

Science.gov (United States)

Obushevs, A.; Mutule, A.

2018-04-01

The paper focuses on the application of synchrophasor measurements that present unprecedented benefits compared to SCADA systems in order to facilitate the successful transformation of the Nordic-Baltic-and-European electric power system to operate with large amounts of renewable energy sources and improve situational awareness of the power system. The article describes new functionalities of visualisation tools to estimate a grid inertia level in real time with monitoring results between Nordic and Baltic power systems.

Recognition of risk situations based on endoscopic instrument tracking and knowledge based situation modeling

Science.gov (United States)

Speidel, Stefanie; Sudra, Gunther; Senemaud, Julien; Drentschew, Maximilian; Müller-Stich, Beat Peter; Gutt, Carsten; Dillmann, Rüdiger

2008-03-01

Minimally invasive surgery has gained significantly in importance over the last decade due to the numerous advantages on patient-side. The surgeon has to adapt special operation-techniques and deal with difficulties like the complex hand-eye coordination, limited field of view and restricted mobility. To alleviate these constraints we propose to enhance the surgeon's capabilities by providing a context-aware assistance using augmented reality (AR) techniques. In order to generate a context-aware assistance it is necessary to recognize the current state of the intervention using intraoperatively gained sensor data and a model of the surgical intervention. In this paper we present the recognition of risk situations, the system warns the surgeon if an instrument gets too close to a risk structure. The context-aware assistance system starts with an image-based analysis to retrieve information from the endoscopic images. This information is classified and a semantic description is generated. The description is used to recognize the current state and launch an appropriate AR visualization. In detail we present an automatic vision-based instrument tracking to obtain the positions of the instruments. Situation recognition is performed using a knowledge representation based on a description logic system. Two augmented reality visualization programs are realized to warn the surgeon if a risk situation occurs.

Augment-type two stage accelerator

International Nuclear Information System (INIS)

Ogino, Mutsuo; Azuma, Kingo.

1995-01-01

When a flying body accelerated by a gas gun at a first stage enters into an augment rail passing through an introduction tube, an ignition capacitor for initial plasmas is turned ON to apply a voltage between the augment rails. Subsequently, the accelerating gas present behind the flying body is formed into plasmas by a laser, to flow electric current from one of the inner augment rails → plasma armature → the other of the inner augment rails, and additionally accelerate the flying body by Lorentz force formed in this case. Since the plasmas are maintained in a state of higher density than the plasmas obtained by using all of the augment rails, the ignition capacitor for initial plasmas in switched to a power source. As a result, it is possible to flow the maximum current before the plasmas expand, and a large accelerating force and a high magnetic flux density are attained, to improve acceleration performance of the flying body. (N.H.)

A study on the operator's communication pattern characteristics under abnormal operating situation of nuclear power plants

International Nuclear Information System (INIS)

Kim, S. H.; Park, J.

2008-01-01

The quality of a probabilistic safety assessment (PSA) has become more important and a human reliability analysis (HRA) is known as a major contributor to the uncertainty of a PSA. As a part of enhancing the HRA quality, a study was initiated to find out characteristics of communication pattern and to evaluate communication quality of the operators of nuclear power plants. Korea Atomic Energy Research Institute (KAERI) is developing evaluation methods for the effect of human-induced events on risk/performance. This paper describes a study on the operator's communication pattern characteristics under abnormal operating situation of nuclear power plants. The study was carried out in four stages; 1) Video recording 2) Audio scripting 3) Message Classification 4) Communication Pattern Analysis. We recorded eight abnormal simulator training programs from Younggwang nuclear power plant training center. After that we performed message classification and carried out communication pattern analysis. We compared communication patterns of abnormal operating situation with emergency operating situation.As results of analysis, the role of SRO (senior reactor operator) under abnormal operating situation was decreased than the activities under emergency operating situation because each operator (reactor operator, turbine operator, safety supervisor) in main control room (MCR) performs the activity to control by himself with corresponding field engineers with his basic knowledge of the system. On the other hand, the operator's decision making processes and activities under abnormal operating situation were dramatically increased than the emergency operating situation. (authors)

Applying Augmented Reality in practical classes for engineering students

Science.gov (United States)

Bazarov, S. E.; Kholodilin, I. Yu; Nesterov, A. S.; Sokhina, A. V.

2017-10-01

In this article the Augmented Reality application for teaching engineering students of electrical and technological specialties is introduced. In order to increase the motivation for learning and the independence of students, new practical guidelines on Augmented Reality were developed in the application to practical classes. During the application development, the authors used software such as Unity 3D and Vuforia. The Augmented Reality content consists of 3D-models, images and animations, which are superimposed on real objects, helping students to study specific tasks. A user who has a smartphone, a tablet PC, or Augmented Reality glasses can visualize on-screen virtual objects added to a real environment. Having analyzed the current situation in higher education: the learner’s interest in studying, their satisfaction with the educational process, and the impact of the Augmented Reality application on students, a questionnaire was developed and offered to students; the study involved 24 learners.

Augmented Reality user interface analysis in mobile devices

OpenAIRE

Guzmán Guzmán, José Daniel

2014-01-01

[ENGLISH] The presence of high-end phones in the telephony market, has allowed consumers to have access to the computational power of mobile smart-phone devices. Powerful processors, combined with cameras and ease of development encourage an increasing number of Augmented Reality (AR) researchers to adopt mobile smart-phones as AR platform. The same way, Augmented Reality on mobile devices has become increasingly popular for many applications, including search and location, tourism, and shopp...

A Qualitative Analysis of Power Differentials in Ethical Situations in Academia

Science.gov (United States)

Gibson, Carter; Medeiros, Kelsey E.; Giorgini, Vincent; Mecca, Jensen T.; Devenport, Lynn D.; Connelly, Shane; Mumford, Michael D.

2014-01-01

Power and organizational hierarchies are ubiquitous to social institutions that form the foundation of modern society. Power differentials may act to constrain or enhance people's ability to make good ethical decisions. However, little scholarly work has examined perceptions of this important topic. The present effort seeks to address this issue by interviewing academics about hypothetical ethical problems that involve power differences among those involved. Academics discussed what they would do in these scenarios, often drawing on their own experiences. Using a think-aloud protocol, participants were prompted to discuss their reasoning and thinking behind their ethical decisions. These interview data were content analyzed using a semantic analysis program that identified a number of distinct ways that academics think about power differences and abuses in ethical situations. Implications of these findings are discussed. PMID:25356066

The power situation in Mid-Norway; Kraftsituasjonen i Midt-Norge

Energy Technology Data Exchange (ETDEWEB)

NONE

2006-07-01

The strained power situation in Mid-Norway is in broad terms an energy problem, and the situation is especially precarious in the county of Moere og Romsdal. There is a risk that even in normal years, there will be insufficient energy supply unless new measures are implemented. There is a 50 percent chance that the situation will become more strained than in normal years. In the long term there is a possibility to increase the capacity of the system by increasing the import capacity as well as the production, but this is not realistic before 2011. A gas work at Tjeldbergodden can at the earliest be operative in 2011. The gas work at Skogn can at the earliest be operative in 2009, and needs to be accompanied by fortifications in the distribution net in order to help the situation in Moere og Romsdal. In short term the import capacity to the region will be reduced, and there are limits to how much new production capacity that can be taken in. Therefore, measures have to be made in order to reduce the consumption and increase the import. To make sure the measures will have satisfactory effect, they need to be implemented soon, so they can have effect over a longer period. It is limited how big reduction one can expect from the normal supply consumption. It is estimated that the consumption can be reduced by 10 percent at the maximum, by the use of high prices in the area, but this requires that the consumers expect a prolonged level of high energy prices at 0,80 Nok/kWh, and in addition short-term price fluctuations. Energy-intensive industry may find it profitable to reduce the consumption at prices below 0,80 Nok/kWh, but the potential for this is probably small in Moere og Romsdal. In a dry year it will hardly be possible to meet the energy demand without resorting to measures and in worst case rationing. The costs of rationing are substantially higher than the cost of backup power plants.

Prospects of uranium supply-demand situation in world nuclear power development

International Nuclear Information System (INIS)

Chen Zuyi; Wang Xingwu

2010-01-01

Based on the newest materials and data published by authoritative organizations, this paper introduces the near-term and medium to long-term development situation of world nuclear power, summarizes the main characteristics of recent world uranium production, preliminarily analyses the relationship between uranium supply and demand to 2030. It is suggested that from the view-point of whole world, uranium resources are fully sufficient for the near-term and medium to long-term world uranium production and uranium demand of nuclear power. World uranium production can meet the near-term uranium demand for nuclear power. However, a big supply-demand gap may exist after 2015 as world nuclear power will be developed with high speed. In case if all const ruction plans of new uranium mines and production- expansion plans of existing uranium mines will be completed on time, it is quite possible for the world uranium production to meet the long-term uranium demand of nuclear power development. (authors)

Guidelines for user interactions in mobile augmented reality

OpenAIRE

Ortman, Erik; Swedlund, Kenneth

2012-01-01

Over the last couple of years the field of Augmented Reality has transformed from something mainly seen in academic researchinto several examples of big commercially successful products, and the widespread use of highly capable mobile devices has greatly helped accelerate this trend. The powerful sensors in modern handsets enable designers to bring Augmented Reality implementations to the hands ofthe users.This thesis examines how Augmented Reality can be implemented onmobile platforms, mainl...

Muzzle shunt augmentation of conventional railguns

International Nuclear Information System (INIS)

Parker, J.V.

1991-01-01

This paper reports on augmentation which is a technique for reducing the armature current and hence the armature power dissipation in a plasma armature railgun. In spite of the advantages, no large augmented railguns have been built, primarily due to the mechanical and electrical complexity introduced by the extra conductors required. it is possible to achieve some of the benefits of augmentation in a conventional railgun by diverting a fraction φ of the input current through a shunt path at the muzzle of the railgun. In particular, the relation between force and armature current is the same as that obtained in an n-turn, series-connected augmented railgun with n = 1/(1 - φ). The price of this simplification is a reduction in electrical efficiency and some additional complexity in the external electrical system

On the present situation and future role of nuclear power

International Nuclear Information System (INIS)

1990-05-01

The engaged public debate about the need for, and responsibility of, the continued use of nuclear power goes on unabated between the political parties and other groups of social relevance in the Federal Republic of Germany. And yet, some tentative changes seem to appear in the spectrum of opinions. In this situation, the German public utility companies operating nuclear power plants felt it necessary to express once more in a position paper their attitude with respect to nuclear power for the benefit of those bearing political responsibility at Federal and State Government level and the political parties. Their statements are guided by the responsibility the public utilities have for a reliable, sufficient, environmentally clean, and economic provision of electricity. They are convinced that nuclear power should remain a major constituent part of a comprehensive supply concept also in the future. This supply concept, which is based on the efficient use of power, relies on nuclear energy, run-of-river power, and lignite for the base load and on domestic hard coal for the medium load range; renewable energy sources are included. It underscores the social responsibility of the public utilities in ensuring electricity supply in a way which helps to conserve resources and is compatible with the environment. (orig.) [de

Human-Machine interface for off normal and emergency situations in nuclear power plants

Energy Technology Data Exchange (ETDEWEB)

Kwon, Kee Choon [Korea Atomic Energy Research Institute, Taejeon (Korea)

2000-01-01

Many nuclear power plants (NPPs) have reported that a high percentage of all major failures in the plants are caused by human errors. Therefore, there has been much focus on elimination of human errors, enhancement of human performance, and general improvement of human machine interface (HMI). Both the utility management and the regulators are demanding improvement in this area. The International Atomic Energy Agency (IAEA) Specialists' Meeting on 'Human-Machine Interface for Off Normal and Emergency Situations in Nuclear Power Plants' was co-organized by the Korea Atomic Energy Research Institute (KAERI) and the Korea Power Engineering Company, INC (KOPEC), and took place in Taejeon, Republic of Korea, 1999 October 26-28. Fifty eight participants, representing nine member countries reviewed recent developments and discussed directions for future efforts in the Human-Machine Interface for Off Normal and Emergency Situations in NPPs. Twenty papers were presented, covering a wide spectrum of technical and scientific subjects including recent experience and benefits from Operational Experience with HMI, Development of HMI System, Licensing Issues for HMI and Future Development and Trends. (Author)

Human-Machine interface for off normal and emergency situations in nuclear power plants

Energy Technology Data Exchange (ETDEWEB)

Kwon, Kee Choon [Korea Atomic Energy Research Institute, Taejeon (Korea)

2000-01-01

Many nuclear power plants (NPPs) have reported that a high percentage of all major failures in the plants are caused by human errors. Therefore, there has been much focus on elimination of human errors, enhancement of human performance, and general improvement of human machine interface (HMI). Both the utility management and the regulators are demanding improvement in this area. The International Atomic Energy Agency (IAEA) Specialists' Meeting on 'Human-Machine Interface for Off Normal and Emergency Situations in Nuclear Power Plants' was co-organized by the Korea Atomic Energy Research Institute (KAERI) and the Korea Power Engineering Company, INC (KOPEC), and took place in Taejeon, Republic of Korea, 1999 October 26-28. Fifty eight participants, representing nine member countries reviewed recent developments and discussed directions for future efforts in the Human-Machine Interface for Off Normal and Emergency Situations in NPPs. Twenty papers were presented, covering a wide spectrum of technical and scientific subjects including recent experience and benefits from Operational Experience with HMI, Development of HMI System, Licensing Issues for HMI and Future Development and Trends. (Author)

Crimes Scenes as Augmented Reality, off-screen, online and offline

DEFF Research Database (Denmark)

Sandvik, Kjetil; Waade, Anne-Marit

Our field of investigation is site specific realism in crime fiction and spatial production as media specific features. We analyze the (re)production of crime scenes in respectively crime series, computer games and tourist practice, and relate this to the ideas of augmented reality. Using...... a distinction between places as locations situated in the physical world and spaces as imagined or virtual locations as our point of departure, this paper investigates how places in various ways have become augmented by means of mediatization. Augmented reality represents processes of mediatization that broaden...... and enhance spatial experiences. These processes are characterized by the activation of users and the creation of artificial operational environments embedded in various physical or virtual locations. The idea of augmented spatial practice is related to the ideas of site specific aesthetic...

Crimes Scenes as Augmented Reality, off-screen, online and offline

DEFF Research Database (Denmark)

Sandvik, Kjetil; Waade, Anne Marit

2008-01-01

Our field of investigation is site specific realism in crime fiction and spatial production as media specific features. We analyze the (re)production of crime scenes in respectively crime series, computer games and tourist practice, and relate this to the ideas of augmented reality. Using...... a distinction between places as locations situated in the physical world and spaces as imagined or virtual locations as our point of departure, this paper investigates how places in various ways have become augmented by means of mediatization. Augmented reality represents processes of mediatization that broaden...... and enhance spatial experiences. These processes are characterized by the activation of users and the creation of artificial operational environments embedded in various physical or virtual locations. The idea of augmented spatial practice is related to the ideas of site specific aesthetic...

Mobile Augmented Reality in Supporting Peer Assessment: An Implementation in a Fundamental Design Course

Science.gov (United States)

Lan, Chung-Hsien; Chao, Stefan; Kinshuk; Chao, Kuo-Hung

2013-01-01

This study presents a conceptual framework for supporting mobile peer assessment by incorporating augmented reality technology to eliminate limitation of reviewing and assessing. According to the characteristics of mobile technology and augmented reality, students' work can be shown in various ways by considering the locations and situations. This…

Empirical evaluation of augmented prototyping effectiveness

Directory of Open Access Journals (Sweden)

Tomáš Koubek

2012-01-01

Full Text Available Augmented reality is a scientific field well known for more than twenty years. Although there is a huge number of projects that present promising results, the real usage of augmented reality applications for fulfilling common tasks is almost negligible. We believe that one of the principal reasons is insufficient usability of these applications. The situation is analogous to the desktop, mobile or cloud application development or even to the web pages design. The first phase of a technology adoption is the exploration of its potential. As soon as the technical problems are overcome and the technology is widely accepted, the usability is a principal issue. The usability is utmost important also from the business point of view. The cost of augmented reality implementation into the production process is substantial, therefore, the usability that is directly responsible for the implemented solution effectiveness must be appropriately tested. Consequently, the benefit of the implemented solution can be measured.This article briefly outlines common techniques used for usability evaluation. Discussed techniques were designed especially for evaluation of desktop applications, mobile solutions and web pages. In spite of this drawback, their application on augmented reality products is usually possible. Further, a review of existing augmented reality project evaluations is presented.Based on this review, a usability evaluation method for our augmented prototyping application is proposed. This method must overcome the fact that the design is a creative process. Therefore, it is not possible to take into account common criteria such as time consumption.

The development situation of biomass gasification power generation in China

International Nuclear Information System (INIS)

Zhou, Zhaoqiu; Yin, Xiuli; Xu, Jie; Ma, Longlong

2012-01-01

This work presents the development situation of biomass gasification power generation technology in China and analyzes the difficulty and challenge in the development process. For China, a large agricultural country with abundant biomass resources, the utilization of biomass gasification power generation technology is of special importance, because it can contribute to the electricity structure diversification under the present coal-dominant electricity structure, ameliorate the environmental impact, provide energy to electricity-scarce regions and solve the problems facing agriculture. Up to now, China has developed biomass gasification power generation plants of different types and scales, including simple gas engine-based power generation systems with capacity from several kW to 3 MW and integrated gasification combined cycle systems with capacity of more than 5 MW. In recent years, due to the rising cost of biomass material, transportation, manpower, etc., the final cost of biomass power generation has increased greatly, resulting in a serious challenge in the Chinese electricity market even under present preferential policy for biomass power price. However, biomass gasification power generation technology is generally in accord with the characteristics of biomass resources in China, has relatively good adaptability and viability, and so has good prospect in China in the future. - Highlights: ► Biomass gasification power generation of 2 kW–2 MW has wide utilization in China. ► 5.5 MW biomass IGCC demonstration plant has maximum power efficiency of up to 30%. ► Biomass power generation is facing a serious challenge due to biomass cost increase.

Bibliography on augmentation of convective heat and mass transfer

International Nuclear Information System (INIS)

Bergles, A.E.; Webb, R.L.; Junkhan, G.H.; Jensen, M.K.

1979-05-01

Heat transfer augmentation has developed into a major specialty area in heat transfer research and development. A bibliography of world literature on augmentation is presented. The literature is classified into passive augmentation techniques, which require no external power, and active techniques, which do require external power. The fourteen techniques are grouped in terms of their application to the various modes of heat transfer. Mass transfer is included for completeness. Key words are included with each citation for technique/mode identification. The total number of publications cited is 1,967, including 75 surveys of various techniques and 42 papers on performance evaluation of passive techniques. Patents are not included as they will be the subject of a future topical report

A computational model for evaluating the effects of attention, memory, and mental models on situation assessment of nuclear power plant operators

International Nuclear Information System (INIS)

Lee, Hyun-Chul; Seong, Poong-Hyun

2009-01-01

Operators in nuclear power plants have to acquire information from human system interfaces (HSIs) and the environment in order to create, update, and confirm their understanding of a plant state, as failures of situation assessment may cause wrong decisions for process control and finally errors of commission in nuclear power plants. A few computational models that can be used to predict and quantify the situation awareness of operators have been suggested. However, these models do not sufficiently consider human characteristics for nuclear power plant operators. In this paper, we propose a computational model for situation assessment of nuclear power plant operators using a Bayesian network. This model incorporates human factors significantly affecting operators' situation assessment, such as attention, working memory decay, and mental model. As this proposed model provides quantitative results of situation assessment and diagnostic performance, we expect that this model can be used in the design and evaluation of human system interfaces as well as the prediction of situation awareness errors in the human reliability analysis.

A computational model for evaluating the effects of attention, memory, and mental models on situation assessment of nuclear power plant operators

Energy Technology Data Exchange (ETDEWEB)

Lee, Hyun-Chul [Instrumentation and Control/Human Factors Division, Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yuseong-gu, Daejeon 305-353 (Korea, Republic of)], E-mail: leehc@kaeri.re.kr; Seong, Poong-Hyun [Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701 (Korea, Republic of)

2009-11-15

Operators in nuclear power plants have to acquire information from human system interfaces (HSIs) and the environment in order to create, update, and confirm their understanding of a plant state, as failures of situation assessment may cause wrong decisions for process control and finally errors of commission in nuclear power plants. A few computational models that can be used to predict and quantify the situation awareness of operators have been suggested. However, these models do not sufficiently consider human characteristics for nuclear power plant operators. In this paper, we propose a computational model for situation assessment of nuclear power plant operators using a Bayesian network. This model incorporates human factors significantly affecting operators' situation assessment, such as attention, working memory decay, and mental model. As this proposed model provides quantitative results of situation assessment and diagnostic performance, we expect that this model can be used in the design and evaluation of human system interfaces as well as the prediction of situation awareness errors in the human reliability analysis.

Augmenting Everyday Artefacts to Support Social Interaction Among Senior Peers

DEFF Research Database (Denmark)

Nazzi, Elena; Sokoler, Tomas

2015-01-01

Novel technological possibilities emerge when tangible and social computing come together. This paper explores the potential of such technology when designing for seniors and their social interaction. Our research is guided by the concept of twitterIDo, which is to make seniors’ everyday activities...... and displays designed to start a dialogue with the seniors on how twitterIDo-technology may fit into their everyday situations. Our findings point out how augmented everyday artefacts can make a positive difference when designing technology in a domain such the one of seniors’ and their social interaction...... more visible by augmenting everyday artefacts to communicate the ongoing activity they are used for. We engaged a local community of seniors in a living lab to explore the possibilities of twitterIDo in real life situations. This paper presents a series of interactive prototypes of everyday artefacts...

Bibliography on augmentation of convective heat and mass transfer-II

Energy Technology Data Exchange (ETDEWEB)

Bergles, A.E.; Nirmalan, V.; Junkhan, G.H.; Webb, R.L.

1983-12-01

Heat transfer augmentation has developed into a major specialty area in heat transfer research and development. This report presents and updated bibliography of world literature on augmentation. The literature is classified into passive augmentation techniques, which require no external power, and active techniques, which do require external power. The fifteen techniques are grouped in terms of their applications to the various modes of heat transfer. Mass transfer is included for completeness. Key words are included with each citation for technique/mode identification. The total number of publications cited is 3045, including 135 surveys of various techniques and 86 papers on performance evaluation of passive techniques. Patents are not included, as they are the subject of a separate bibliographic report.

Mobile Collaborative Augmented Reality: The Augmented Stroll

OpenAIRE

Renevier , Philippe; Nigay , Laurence

2001-01-01

International audience; The paper focuses on Augmented Reality systems in which interaction with the real world is augmented by the computer, the task being performed in the real world. We first define what mobile AR systems, collaborative AR systems and finally mobile and collaborative AR systems are. We then present the augmented stroll and its software design as one example of a mobile and collaborative AR system. The augmented stroll is applied to Archaeology in the MAGIC (Mobile Augmente...

Partial sleep in the context of augmentation of brain function.

Directory of Open Access Journals (Sweden)

Ivan N. Pigarev

2014-05-01

Full Text Available Inability to solve complex problems or errors in decision making is often attributed to poor brain processing, and raises the issue of brain augmentation. Investigation of neuronal activity in the cerebral cortex in the sleep-wake cycle offers insights into the mechanisms underlying the reduction in mental abilities for complex problem solving. Some cortical areas may transit into a sleep state while an organism is still awake. Such local sleep would reduce behavioral ability in the tasks for which the sleeping areas are crucial. The studies of this phenomenon have indicated that local sleep develops in high order cortical areas. This is why complex problem solving is mostly affected by local sleep, and prevention of local sleep might be a potential way of augmentation of brain function. For this approach to brain augmentation not to entail negative consequences for the organism, it is necessary to understand the functional role of sleep. Our studies have given an unexpected answer to this question. It was shown that cortical areas that process signals from extero- and proprioreceptors during wakefulness, switch to the processing of interoceptive information during sleep. It became clear that during sleep all computational power of the brain is directed to the restoration of the vital functions of internal organs. These results explain the logic behind the initiation of total and local sleep. Indeed, a mismatch between the current parameters of any visceral system and the genetically determined normal range would provide the feeling of tiredness, or sleep pressure. If an environmental situation allows falling asleep, the organism would transit to a normal total sleep in all cortical areas. However, if it is impossible to go to sleep immediately, partial sleep may develop in some cortical areas in the still behaviorally awake organism. This local sleep may reduce both the intellectual power and the restorative function of sleep for visceral

Feasibility analysis of gas turbine inlet air cooling by means of liquid nitrogen evaporation for IGCC power augmentation

International Nuclear Information System (INIS)

Morini, Mirko; Pinelli, Michele; Spina, Pier Ruggero; Vaccari, Anna; Venturini, Mauro

2015-01-01

Integrated Gasification Combined Cycles (IGCC) are energy systems mainly composed of a gasifier and a combined cycle power plant. Since the gasification process usually requires oxygen as the oxidant, an Air Separation Unit (ASU) is also part of the plant. In this paper, a system for power augmentation in IGCC is evaluated. The system is based on gas turbine inlet air cooling by means of liquid nitrogen spray. In fact, nitrogen is a product of the ASU, but is not always exploited. In the proposed plant, the nitrogen is first liquefied to be used for inlet air cooling or stored for later use. This system is not characterized by the limits of water evaporative cooling systems (the lower temperature is limited by air saturation) and refrigeration cooling (the effectiveness is limited by the pressure drop in the heat exchanger). A thermodynamic model of the system is built by using a commercial code for energy conversion system simulation. A sensitivity analysis on the main parameters is presented. Finally the model is used to study the capabilities of the system by imposing the real temperature profiles of different sites for a whole year and by comparing to traditional inlet air cooling strategies. - Highlights: • Gas turbine inlet air cooling by means of liquid nitrogen spray. • Humidity condensation may form a fog which provides further power augmentation. • High peak and off peak electric energy price ratios make the system profitable

Sensory Media: Multidisciplinary Approaches in Designing a Situated & Mobile Learning Environment for Past Topics

Directory of Open Access Journals (Sweden)

Terje Rasmussen

2012-07-01

Full Text Available Handheld digital devices are rapidly increasing their sensory capabilities for registering multiple types of input, such as movement, orientation, position and touch, as well as light and sound. Mobile Augmented Rreality is one of the emerging forms of representation and expression that exploits these sensory media. In the following text we will present and discuss a type of indirect augmented reality, which we call situated simulations. In a situated simulation there is approximate identity between the 3D environment displayed on the screen and the user's real perspective on a given location. This makes it possible to create simulations of relevant objects and environments related to a specific place, for example, interpretations of its past. We present a situated simulation

The human factor in operating nuclear power plants during crisis situations

International Nuclear Information System (INIS)

Schnauder, H.; Smidt, D.

1981-10-01

Human factors in nuclear power plant operation are a main part of safety analyses. A considerable reduction in the influence of human factors has been obtained through ergonomic control room design, automation, clearly formulated operating manuals, and appropriate personnel education and training. These precautions are directed primarily at skill- and rule-based behaviour and are intended for normal operation and design accidents. In addition, one can construct an area of uncommon and very rare events where a partial failure of the safety systems is assumed. This is an area of knowledge-based behaviour. This report describes and assesses the present situation in German nuclear power plants. Recommendations for further research activity are made and, as a main result, for improvements in knowledge-based behaviour. (orig.) [de

Power Structure in Family and Coercive Trends Consequence of it Based on Women’s Emotional Energy and Economic Situation in Abdanan

Directory of Open Access Journals (Sweden)

مریم مختاری

2014-01-01

Full Text Available This research carried out with the purpose of determining role of women’s emotional energy and economic situation in power structure in family and coercive trends consequence of it in Abdanan. Subject of power in family is one of the considered  problems in Sociology. In this way role of two differential factors (emotional energy and economic situation is thinkful. Research method was survey and population were all of married women in Abdanan that were selected 400women as a sample size with performance of multy stage cluster sampling. A researcher-made questionnaire was used for data collection. In this research power structure considered as a mediator variable. Research finging showed that there is significant and direct relation between emotional energy and power structure in family but there isn’t significant relation between economic situation and power structure in family. Relation between variables and coercive trends as a dependent variable is expressive of significant and direct relation between emotional energy and coercive trends. There is significant and reverse relation between economic situation and coercive trends and also significant and direct relation between power structure in family and coercive trends.

Development and evaluation of tracking method for augmented reality system for nuclear power plant maintenance support

International Nuclear Information System (INIS)

Ishii, Hirotake; Bian, Zhiqiang; Sekiyama, Tomoki; Shimoda, Hiroshi; Yoshikawa, Hidekazu; Izumi, Masanori; Kanehira, Yoshiki; Morishita, Yoshitsugu

2007-01-01

This study aims at developing an augmented reality system to support maintenance work of nuclear power plants. An accurate and wide-range tracking method is required as a key technology in order to realize the system. In this study, a new tracking method using multi-camera and gyro sensor has been developed in order to enlarge the area where the tracking is available with limited number of markers. Experimental evaluation result shows that the area where the developed method can cover is about 3 times larger than the method using only single camera. (author)

Development and evaluation of tracking method for augmented reality system for nuclear power plant maintenance support

International Nuclear Information System (INIS)

Ishii, Hirotake; Bian, Zhiqiang; Sekiyama, Tomoki; Shimoda, Hiroshi; Yoshikawa, Hidekazu; Izumi, Masanori; Kanehira, Yoshiki; Morishita, Yoshitsugu

2006-01-01

This study aims at developing an augmented reality system to support maintenance work of nuclear power plants. An accurate and wide-range tracking method is required as a key technology in order to realize the system. In this study, a new tracking method using multi-camera and gyro sensor has been developed in order to enlarge the area where the tracking is available with limited number of markers. Experimental evaluation result shows that the area where the developed method can cover is about 3 times larger than the method using single camera. (author)

Physical interface dynamics alter how robotic exosuits augment human movement: implications for optimizing wearable assistive devices.

Science.gov (United States)

Yandell, Matthew B; Quinlivan, Brendan T; Popov, Dmitry; Walsh, Conor; Zelik, Karl E

2017-05-18

Wearable assistive devices have demonstrated the potential to improve mobility outcomes for individuals with disabilities, and to augment healthy human performance; however, these benefits depend on how effectively power is transmitted from the device to the human user. Quantifying and understanding this power transmission is challenging due to complex human-device interface dynamics that occur as biological tissues and physical interface materials deform and displace under load, absorbing and returning power. Here we introduce a new methodology for quickly estimating interface power dynamics during movement tasks using common motion capture and force measurements, and then apply this method to quantify how a soft robotic ankle exosuit interacts with and transfers power to the human body during walking. We partition exosuit end-effector power (i.e., power output from the device) into power that augments ankle plantarflexion (termed augmentation power) vs. power that goes into deformation and motion of interface materials and underlying soft tissues (termed interface power). We provide empirical evidence of how human-exosuit interfaces absorb and return energy, reshaping exosuit-to-human power flow and resulting in three key consequences: (i) During exosuit loading (as applied forces increased), about 55% of exosuit end-effector power was absorbed into the interfaces. (ii) However, during subsequent exosuit unloading (as applied forces decreased) most of the absorbed interface power was returned viscoelastically. Consequently, the majority (about 75%) of exosuit end-effector work over each stride contributed to augmenting ankle plantarflexion. (iii) Ankle augmentation power (and work) was delayed relative to exosuit end-effector power, due to these interface energy absorption and return dynamics. Our findings elucidate the complexities of human-exosuit interface dynamics during transmission of power from assistive devices to the human body, and provide insight into

The feasibility of water injection into the turbine coolant to permit gas turbine contingency power for helicopter application

Science.gov (United States)

Van Fossen, G. J.

1983-01-01

It is pointed out that in certain emergency situations it may be desirable to obtain power from a helicopter engine at levels greater than the maximum rating. Yost (1976) has reported studies concerning methods of power augmentation in the one engine inoperative (OEI) case. It was found that a combination of water/alcohol injection into the inlet and overtemperature/overspeed could provide adequate emergency power. The present investigation is concerned with the results of a feasibility study which analytically investigated the maximum possible level of augmentation with constant gas generator turbine stress rupture life as a constraint. In the proposed scheme, the increased engine output is obtained by turbine overtemperature, however, the temperature of the compressor bleed air used for hot section cooling is lowered by injecting and evaporating water.

Augmented reality for breast imaging.

Science.gov (United States)

Rancati, Alberto; Angrigiani, Claudio; Nava, Maurizio B; Catanuto, Giuseppe; Rocco, Nicola; Ventrice, Fernando; Dorr, Julio

2018-02-21

Augmented reality (AR) enables the superimposition of virtual reality reconstructions onto clinical images of a real patient, in real time. This allows visualization of internal structures through overlying tissues, thereby providing a virtual transparency vision of surgical anatomy. AR has been applied to neurosurgery, which utilizes a relatively fixed space, frames, and bony references; the application of AR facilitates the relationship between virtual and real data. Augmented Breast imaging (ABI) is described. Breast MRI studies for breast implant patients with seroma were performed using a Siemens 3T system with a body coil and a four-channel bilateral phased-array breast coil as the transmitter and receiver, respectively. The contrast agent used was (CA) gadolinium (Gd) injection (0.1 mmol/kg at 2 ml/s) by a programmable power injector. Dicom formated images data from 10 MRI cases of breast implant seroma and 10 MRI cases with T1-2 N0 M0 breast cancer, were imported and transformed into Augmented reality images. Augmented breast imaging (ABI) demonstrated stereoscopic depth perception, focal point convergence, 3D cursor use, and joystick fly-through. Augmented breast imaging (ABI) to the breast can improve clinical outcomes, giving an enhanced view of the structures to work on. It should be further studied to determine its utility in clinical practice.

Advances in Gingival Augmentation Techniques - A Literature Review

Directory of Open Access Journals (Sweden)

Hiral Shah

2013-01-01

Full Text Available Background: In the current practice of periodontics, clinicians are faced with the challenge of not only addressing biological and functional problems present in the periodontium but also providing therapy that results in acceptable aesthetics. The presence of mucogingival problems and gingival recession around anterior, highly visible teeth exemplifies a situation in which a treatment modality that addresses both biological and aesthetic demands is required from the therapist. A variety of soft tissue augmentation procedures directed at root coverage have been documented in the literature utilizing autogenous or allogenic soft tissue grafting or guided tissue regeneration (GTR. The purpose of this review was to assess the effectiveness of newer materials in gingival augmentation procedures.

The situation of nuclear power in the Federal Republic of Germany

International Nuclear Information System (INIS)

Gassert, H.

1982-01-01

The industrial development of nuclear power, especially nuclear power plant technology, in the Federal Republic of Germany has reached a top level position worldwide with respect to availability and safety. The expansion of the use of nuclear power in the Federal Republic of Germany by comparison has been in a paradoxical situation for many years: the importance of this source of energy is being stressed again and again by politicians and industrialists, the speedy development of nuclear power described as indispensable for the national economy and the energy producing utilities. However, in actual practice, industry and the electricity utilities are facing no end of obstacles and difficulties which, ultimately, are beginning to jeopardize the major advantages of nuclear power, at least in the Federal Republic. Special difficulties arise not only in the completion of the prototypes of the two advanced reactor lines, i.e., the fast breeder and the high temperature reactor, but especially also in the completion of the fuel cycle by reprocessing plants, despite the fact that all legal conditions exist for allowing nuclear power to occupy the place found to be necessary also in the Federal Republic of Germany. Industry expects these complex effects on the economy to be recognized and taken into account especially on the political side before this important area of innovation suffers irreparable damage. (orig.) [de

Augmenting Probabilistic Risk Assesment with Malevolent Initiators

International Nuclear Information System (INIS)

Smith, Curtis; Schwieder, David

2011-01-01

As commonly practiced, the use of probabilistic risk assessment (PRA) in nuclear power plants only considers accident initiators such as natural hazards, equipment failures, and human error. Malevolent initiators are ignored in PRA, but are considered the domain of physical security, which uses vulnerability assessment based on an officially specified threat (design basis threat). This paper explores the implications of augmenting and extending existing PRA models by considering new and modified scenarios resulting from malevolent initiators. Teaming the augmented PRA models with conventional vulnerability assessments can cost-effectively enhance security of a nuclear power plant. This methodology is useful for operating plants, as well as in the design of new plants. For the methodology, we have proposed an approach that builds on and extends the practice of PRA for nuclear power plants for security-related issues. Rather than only considering 'random' failures, we demonstrated a framework that is able to represent and model malevolent initiating events and associated plant impacts.

A computational model for evaluating the effects of cognitive factors on situation assessment of nuclear power plant operators

International Nuclear Information System (INIS)

Lee, Hyun Chul

2010-02-01

Operators in nuclear power plants have to acquire information from human system interfaces (HSIs) and the environment in order to create, update, and confirm their understanding of a plant state, as failures of situation assessment may cause wrong decisions for process control and finally errors of commission in nuclear power plants. A few computational models that can be used to predict and quantify the situation awareness of operators have been suggested. However, these models do not sufficiently consider human characteristics for nuclear power plant operators. In this thesis, a computational model for situation assessment of nuclear power plant operators using a Bayesian network is proposed. This model incorporates human factors significantly affecting operators' situation assessment, such as attention, working memory decay, and mental model. It is assumed that both the salience level and the information value of information sources are the most significant factors that decide which information sources operators heed. The perception index (PI) is defined as the geometric mean of the salience level and the information value of information sources in this study. The attention allocation rule in the proposed model is defined to direct the operator's attention to the information source with the largest PI value at that moment. There are two approaches for incorporating a mental model of nuclear power plant operators into a Bayesian network: the deterministic rules and the probabilistic rules. The proposed model adopted the probabilistic rules because the deterministic rules are a special case of the probabilistic rules and the probabilistic rules can describe various skill levels of operators. Two working memory decay mechanisms have been suggested: a power law and an exponential law. The proposed model assumes that the situation awareness stored in the working memory decays exponentially because the exponential decay formulas are more popular and require just one

A computational model for evaluating the effects of cognitive factors on situation assessment of nuclear power plant operators

Energy Technology Data Exchange (ETDEWEB)

Lee, Hyun Chul

2010-02-15

Operators in nuclear power plants have to acquire information from human system interfaces (HSIs) and the environment in order to create, update, and confirm their understanding of a plant state, as failures of situation assessment may cause wrong decisions for process control and finally errors of commission in nuclear power plants. A few computational models that can be used to predict and quantify the situation awareness of operators have been suggested. However, these models do not sufficiently consider human characteristics for nuclear power plant operators. In this thesis, a computational model for situation assessment of nuclear power plant operators using a Bayesian network is proposed. This model incorporates human factors significantly affecting operators' situation assessment, such as attention, working memory decay, and mental model. It is assumed that both the salience level and the information value of information sources are the most significant factors that decide which information sources operators heed. The perception index (PI) is defined as the geometric mean of the salience level and the information value of information sources in this study. The attention allocation rule in the proposed model is defined to direct the operator's attention to the information source with the largest PI value at that moment. There are two approaches for incorporating a mental model of nuclear power plant operators into a Bayesian network: the deterministic rules and the probabilistic rules. The proposed model adopted the probabilistic rules because the deterministic rules are a special case of the probabilistic rules and the probabilistic rules can describe various skill levels of operators. Two working memory decay mechanisms have been suggested: a power law and an exponential law. The proposed model assumes that the situation awareness stored in the working memory decays exponentially because the exponential decay formulas are more popular and require

Augmented Reality 2.0

Science.gov (United States)

Schmalstieg, Dieter; Langlotz, Tobias; Billinghurst, Mark

Augmented Reality (AR) was first demonstrated in the 1960s, but only recently have technologies emerged that can be used to easily deploy AR applications to many users. Camera-equipped cell phones with significant processing power and graphics abilities provide an inexpensive and versatile platform for AR applications, while the social networking technology of Web 2.0 provides a large-scale infrastructure for collaboratively producing and distributing geo-referenced AR content. This combination of widely used mobile hardware and Web 2.0 software allows the development of a new type of AR platform that can be used on a global scale. In this paper we describe the Augmented Reality 2.0 concept and present existing work on mobile AR and web technologies that could be used to create AR 2.0 applications.

CubeSat Integration into the Space Situational Awareness Architecture

Science.gov (United States)

Morris, K.; Wolfson, M.; Brown, J.

2013-09-01

Lockheed Martin Space Systems Company has recently been involved in developing GEO Space Situational Awareness architectures, which allows insights into how cubesats can augment the current national systems. One hole that was identified in the current architecture is the need for timelier metric track observations to aid in the chain of custody. Obtaining observations of objects at GEO can be supported by CubeSats. These types of small satellites are increasing being built and flown by government agencies like NASA and SMDC. CubeSats are generally mass and power constrained allowing for only small payloads that cannot typically mimic traditional flight capability. CubeSats do not have a high reliability and care must be taken when choosing mission orbits to prevent creating more debris. However, due to the low costs, short development timelines, and available hardware, CubeSats can supply very valuable benefits to these complex missions, affordably. For example, utilizing CubeSats for advanced focal plane demonstrations to support technology insertion into the next generation situational awareness sensors can help to lower risks before the complex sensors are developed. CubeSats can augment the planned ground and space based assets by creating larger constellations with more access to areas of interest. To aid in maintaining custody of objects, a CubeSat constellation at 500 km above GEO would provide increased point of light tracking that can augment the ground SSA assets. Key features of the Cubesat include a small visible camera looking along the GEO belt, a small propulsion system that allows phasing between CubeSats, and an image processor to reduce the data sent to the ground. An elegant communications network will also be used to provide commands to and data from multiple CubeSats. Additional CubeSats can be deployed on GSO launches or through ride shares to GEO, replenishing or adding to the constellation with each launch. Each CubeSat would take images of

Towards Pervasive Augmented Reality: Context-Awareness in Augmented Reality.

Science.gov (United States)

Grubert, Jens; Langlotz, Tobias; Zollmann, Stefanie; Regenbrecht, Holger

2017-06-01

Augmented Reality is a technique that enables users to interact with their physical environment through the overlay of digital information. While being researched for decades, more recently, Augmented Reality moved out of the research labs and into the field. While most of the applications are used sporadically and for one particular task only, current and future scenarios will provide a continuous and multi-purpose user experience. Therefore, in this paper, we present the concept of Pervasive Augmented Reality, aiming to provide such an experience by sensing the user's current context and adapting the AR system based on the changing requirements and constraints. We present a taxonomy for Pervasive Augmented Reality and context-aware Augmented Reality, which classifies context sources and context targets relevant for implementing such a context-aware, continuous Augmented Reality experience. We further summarize existing approaches that contribute towards Pervasive Augmented Reality. Based our taxonomy and survey, we identify challenges for future research directions in Pervasive Augmented Reality.

The Application of Augmented Reality Technology in Food Professional Education

OpenAIRE

Wei Shan

2015-01-01

This study presents the application of augmented reality technology in food professional education, combining with the current situation of applying virtual reality education, analyzes the problems existing in the virtual reality application in food professional education, puts forward some suggestions and finally prospects the developing trend of the technology of virtual reality now.

A method for analysis of nuclear power plant operators' decision making in simulated disturbance situations

International Nuclear Information System (INIS)

1995-01-01

An analysis method has been developed for analysis of nuclear power plant operators' decision making in simulated disturbance situations. The aim of the analysis is to investigate operators' orientation which is expected to manifest itself as collective strategies in utilization of resources of decision making. Resources analyzed here are different information sources and, in addition, collaborative resources like communication and participation. The cognitive approach on the basis of the method considers decision making as collective construction of common interpretation of available information. Utilization of information is evaluated with respect to operative context. This is made with help of conceptualization of the disturbance situation from the decision making point of view and by construction of operative reference for activity. The latter means conceptualization of the situation from the safety point of view and also consideration of other boundary constraints of decision making, i.e. economical and technical aspects. The analysis method is intended to be used in routine simulator training in nuclear power plants. By virtue of its contextual and dynamical approach it makes the developing nature of activity visible. Cumulation and distribution of knowledge of decision making as developing activity, controlled by orientation and boundary constraints of process control, is expected to improve operational culture of a plant organization. (author). 2 refs, 1 fig

Emergency and backup power supplies at Department of Energy facilities: Augmented Evaluation Team -- Final report

Energy Technology Data Exchange (ETDEWEB)

1993-11-01

This report documents the results of the Defense Programs (DP) Augmented Evaluation Team (AET) review of emergency and backup power supplies (i.e., generator, uninterruptible power supply, and battery systems) at DP facilities. The review was conducted in response to concerns expressed by former Secretary of Energy James D. Watkins over the number of incidents where backup power sources failed to provide electrical power during tests or actual demands. The AET conducted a series of on-site reviews for the purpose of understanding the design, operation, maintenance, and safety significance of emergency and backup power (E&BP) supplies. The AET found that the quality of programs related to maintenance of backup power systems varies greatly among the sites visited, and often among facilities at the same site. No major safety issues were identified. However, there are areas where the AET believes the reliability of emergency and backup power systems can and should be improved. Recommendations for improving the performance of E&BP systems are provided in this report. The report also discusses progress made by Management and Operating (M&O) contractors to improve the reliability of backup sources used in safety significant applications. One area that requires further attention is the analysis and understanding of the safety implications of backup power equipment. This understanding is needed for proper graded-approach implementation of Department of Energy (DOE) Orders, and to help ensure that equipment important to the safety of DOE workers, the public, and the environment is identified, classified, recognized, and treated as such by designers, users, and maintainers. Another area considered important for improving E&BP system performance is the assignment of overall ownership responsibility and authority for ensuring that E&BP equipment performs adequately and that reliability and availability are maintained at acceptable levels.

Game-Based Evacuation Drill Using Augmented Reality and Head-Mounted Display

Science.gov (United States)

Kawai, Junya; Mitsuhara, Hiroyuki; Shishibori, Masami

2016-01-01

Purpose: Evacuation drills should be more realistic and interactive. Focusing on situational and audio-visual realities and scenario-based interactivity, the authors have developed a game-based evacuation drill (GBED) system that presents augmented reality (AR) materials on tablet computers. The paper's current research purpose is to improve…

Mobile Augmented Communication for Remote Collaboration in a Physical Work Context

Science.gov (United States)

Pejoska-Laajola, Jana; Reponen, Sanna; Virnes, Marjo; Leinonen, Teemu

2017-01-01

Informal learning in a physical work context requires communication and collaboration that build on a common ground and an active awareness of a situation. We explored whether mobile video conversations augmented with on-screen drawing features were beneficial for improving communication and remote collaboration practices in the construction and…

Agent Services for Situation Aware Control of Power Systems With Distributed Generation

DEFF Research Database (Denmark)

Saleem, Arshad; Heussen, Kai; Lind, Morten

2009-01-01

Electric Power system of Denmark exhibits some unique characteristics. An increasing part of the electricity is produced by distributed generators (DGs). Most of these DGs are connected to the network at the distribution level. At the same time the concept of vehicle to grid (V2G) is already...... in the process of realization. This situation has created an incentive in electric power industry to utilize modern information and communication technologies (ICT) for improving the distribution system automation. This paper describes our work on how significantly increased amount of distributed generation...... services. We present results from several experiments where agents offer and utilize services in order to achieve distributed and autonomous control for subgrid operation of a distribution system. Finally it is discussed how the service oriented architecture can be combined with knowledge based reasoning...

ARLearn: augmented reality meets augmented virtuality

NARCIS (Netherlands)

Ternier, Stefaan; Klemke, Roland; Kalz, Marco; Van Ulzen, Patricia; Specht, Marcus

2012-01-01

Ternier, S., Klemke, R., Kalz, M., Van Ulzen, P., & Specht, M. (2012). ARLearn: augmented reality meets augmented virtuality [Special issue]. Journal of Universal Computer Science - Technology for learning across physical and virtual spaces, 18(15), 2143-2164.

Results of the desulfurization programme at coal-fired power plants operated by CEZ a.s

International Nuclear Information System (INIS)

Anon.

1996-01-01

The Czech utility CEZ, which is the major power plant operator in the Czech Republic, is running an extensive coal-fired power plant desulfurization programme to improve the environmental situation in the region. Flue gas desulfurization is achieved in 2 ways: by augmenting the existing units with desulfurization equipment, and by replacing old boilers with new, fluidized-bed combustion facilities. Both wet limestone scrubbing and the dry limestone method are applied. A survey of the power plants, desulfurized power, desulfurization equipment suppliers, and contract prices is presented in a tabular form. Plots showing the contribution of CEZ's power plants to sulfur dioxide emissions in the Czech Republic are reproduced. (P.A.). 1 tab., 3 figs

Situated Dialogue and Spatial Organization: What, Where… and Why?

Directory of Open Access Journals (Sweden)

Geert-Jan M. Kruijff

2007-03-01

Full Text Available The paper presents an HRI architecture for human-augmented mapping, which has been implemented and tested on an autonomous mobile robotic platform. Through interaction with a human, the robot can augment its autonomously acquired metric map with qualitative information about locations and objects in the environment. The system implements various interaction strategies observed in independently performed Wizard-of-Oz studies. The paper discusses an ontology-based approach to multi-layered conceptual spatial mapping that provides a common ground for human-robot dialogue. This is achieved by combining acquired knowledge with innate conceptual commonsense knowledge in order to infer new knowledge. The architecture bridges the gap between the rich semantic representations of the meaning expressed by verbal utterances on the one hand and the robot's internal sensor-based world representation on the other. It is thus possible to establish references to spatial areas in a situated dialogue between a human and a robot about their environment. The resulting conceptual descriptions represent qualitative knowledge about locations in the environment that can serve as a basis for achieving a notion of situational awareness.

Augmented postcard

OpenAIRE

Bernik , Aleš

2012-01-01

The aim of this thesis is the examination of augmented reality technology, which allows us mixing real and virtual elements. Augmented reality is a relatively new technology which is becoming more widespread, thanks to a fairly reasonable price of smart phones. Here we presents the types of augmented reality, the necessary technology and their advantages and disadvantages, its current use in applications, and software for building augmented reality applications. The thesis is mainly focuse...

Gamification for Measuring Cyber Security Situational Awareness

Energy Technology Data Exchange (ETDEWEB)

Fink, Glenn A.; Best, Daniel M.; Manz, David O.; Popovsky, V. M.; Endicott-Popovsky, Barbara E.

2013-03-01

Cyber defense competitions arising from U.S. service academy exercises, offer a platform for collecting data that can inform research that ranges from characterizing the ideal cyber warrior to describing behaviors during certain challenging cyber defense situations. This knowledge could lead to better preparation of cyber defenders in both military and civilian settings. This paper describes how one regional competition, the PRCCDC, a participant in the national CCDC program, conducted proof of concept experimentation to collect data during the annual competition for later analysis. The intent is to create an ongoing research agenda that expands on this current work and incorporates augmented cognition and gamification methods for measuring cybersecurity situational awareness under the stress of cyber attack.

Wide-area situation awareness in electric power grid

Science.gov (United States)

Greitzer, Frank L.

2010-04-01

Two primary elements of the US energy policy are demand management and efficiency and renewable sources. Major objectives are clean energy transmission and integration, reliable energy transmission, and grid cyber security. Development of the Smart Grid seeks to achieve these goals by lowering energy costs for consumers, achieving energy independence and reducing greenhouse gas emissions. The Smart Grid is expected to enable real time wide-area situation awareness (SA) for operators. Requirements for wide-area SA have been identified among interoperability standards proposed by the Federal Energy Regulatory Commission and the National Institute of Standards and Technology to ensure smart-grid functionality. Wide-area SA and enhanced decision support and visualization tools are key elements in the transformation to the Smart Grid. This paper discusses human factors research to promote SA in the electric power grid and the Smart Grid. Topics that will be discussed include the role of human factors in meeting US energy policy goals, the impact and challenges for Smart Grid development, and cyber security challenges.

Adaptations of renewable energy policies to unstable macroeconomic situations - case study: wind power in Brazil

Energy Technology Data Exchange (ETDEWEB)

Kissel, J.M. [Technical University, Berlin (Germany). Dept. of Renewable Energies; Federal University, Rio de Janeiro (Brazil); World Council for Renewable Energy, Rio de Janeiro (Brazil); Krauter, S.C.W. [Technical University, Berlin (Germany). Dept. of Renewable Energies; World Council for Renewable Energy, Rio de Janeiro (Brazil); State University of Ceara (Brazil). Dept. of Physics

2006-12-15

Despite the massive cost reduction in the last decade, wind power generation is generally still more expensive than conventional energy sources which benefit from the exclusion of externality costs in the price structure. Support policies for renewable energies guarantee the economic viability of this type of electrical power generation in many European countries. In Latin America, Brazil has become the pioneer state for renewable energy with the implementation of the PROINFA programme that supports, among other sources, wind power development of 1100 MW. This article presents an overview of the differences between the German and Brazilian wind power promotion policies with a special focus on how PROINFA can be adapted to the unstable macroeconomic situation of Brazil. The document specifically examines the adaptation of wind power promotion policies to large inflation and interest rates in Brazil. (author)

Adaptations of renewable energy policies to unstable macroeconomic situations-Case study: Wind power in Brazil

Energy Technology Data Exchange (ETDEWEB)

Kissel, Johannes M. [Department of Renewable Energies, Institute for Energy and Control Technology, Technical University Berlin (TUB), Sec. EM 4, Einsteinufer 11, D-10587 Berlin (Germany) and Federal University of Rio de Janeiro (UFRJ-COPPE), Programme for Energy Planning, Rio de Janeiro-RJ (Brazil) and World Council for Renewable Energy-Latin America - WCRE LA, c/o Rio Solar Ltda./PML, Av. Rio Branco, 25/18o andar, 20093-900 Rio de Janeiro-RJ (Brazil)]. E-mail: jo.kissel@gmx.net; Krauter, Stefan C.W. [Department of Renewable Energies, Institute for Energy and Control Technology, Technical University Berlin (TUB), Sec. EM 4, Einsteinufer 11, D-10587 Berlin (Germany) and World Council for Renewable Energy-Latin America (WCRE LA), c/o Rio Solar Ltda./PML, Av. Rio Branco, 25/18o andar, 20093-900 Rio de Janeiro-RJ (Brazil) and Department of Physics, State University of Ceara - UECE, Alternative Energy Group, Av. Paranjana 1700, Campus do Itaperi, Fortaleza 60740-000 CE (Brazil)]. E-mail: krauter@uece.br

2006-12-15

Despite the massive cost reduction in the last decade, wind power generation is generally still more expensive than conventional energy sources which benefit from the exclusion of externality costs in the price structure. Support policies for renewable energies guarantee the economic viability of this type of electrical power generation in many European countries. In Latin America, Brazil has become the pioneer state for renewable energy with the implementation of the PROINFA programme that supports, among other sources, wind power development of 1100 MW. This article presents an overview of the differences between the German and Brazilian wind power promotion policies with a special focus on how PROINFA can be adapted to the unstable macroeconomic situation of Brazil. The document specifically examines the adaptation of wind power promotion policies to large inflation and interest rates in Brazil.

Adaptations of renewable energy policies to unstable macroeconomic situations-Case study: Wind power in Brazil

International Nuclear Information System (INIS)

Kissel, Johannes M.; Krauter, Stefan C.W.

2006-01-01

Despite the massive cost reduction in the last decade, wind power generation is generally still more expensive than conventional energy sources which benefit from the exclusion of externality costs in the price structure. Support policies for renewable energies guarantee the economic viability of this type of electrical power generation in many European countries. In Latin America, Brazil has become the pioneer state for renewable energy with the implementation of the PROINFA programme that supports, among other sources, wind power development of 1100 MW. This article presents an overview of the differences between the German and Brazilian wind power promotion policies with a special focus on how PROINFA can be adapted to the unstable macroeconomic situation of Brazil. The document specifically examines the adaptation of wind power promotion policies to large inflation and interest rates in Brazil

A randomized controlled study of power posing before public speaking exposure for social anxiety disorder: No evidence for augmentative effects.

Science.gov (United States)

Davis, Michelle L; Papini, Santiago; Rosenfield, David; Roelofs, Karin; Kolb, Sarah; Powers, Mark B; Smits, Jasper A J

2017-12-01

This manuscript details a randomized controlled study designed to test the efficacy of power posing (i.e., briefly holding postures associated with dominance and power) as an augmentative strategy for exposure therapy for social anxiety disorder (SAD). Seventy-three individuals diagnosed with SAD were assigned to one of three conditions: power posing, submissive posing, or rest (no posing) prior to participating in an exposure therapy session. Participants were assessed for between-group differences in pre- and post-manipulation salivary hormone levels, within-session subjective experiences of fear, and pre- and 1-week post-treatment SAD severity outcome measures. Though the intervention resulted in decreased SAD symptom severity one week later, analyses revealed no significant between-group differences on any tested variables. Accordingly, this study provides no evidence to suggest that power posing impacts hormone levels or exposure therapy outcomes. Copyright © 2017 Elsevier Ltd. All rights reserved.

Clozapine-resistant schizophrenia – non pharmacological augmentation methods

Directory of Open Access Journals (Sweden)

Gałaszkiewicz Joanna

2017-12-01

Full Text Available Clozapine is the drug of choice for drug-resistant schizophrenia, but despite its use, 30-40% patients fail to achieve satisfactory therapeutic effects. In such situations, augmentation attempts are made by both pharmacological and non-pharmacological methods. To date, most of the work has been devoted to pharmacological strategies, much less to augemantation of clozapine with electroconvulsive therapy (C+ECT, transcranial direct current stimulation (tDCS or transcranial magnetic stimulation (TMS.

A Method for Analyzing the Communications among Nuclear Power Plant Operators in Emergency Situations

International Nuclear Information System (INIS)

Kim, Man Cheol; Park, Jin Kyun; Jung, Won Dea

2006-01-01

Communications among MCR operators is an important factor for understanding how and how well MCR operators manage abnormal situations in NPPs. As mentioned by Ujita et al., the performance of MCR operators in emergency situations in NPPs is strongly affected by not only the cognitive process for each operator, but also by communications and collaboration among operators. Many researches have been conducted to find out the relation between the communication of human operators and the performance of them. But, it seems that few researches have been conducted on in what way the communication among MCR operators should be performed to enhance the performance of them. In this paper, we propose an analysis method for evaluating the quality of communications among MCR operators in nuclear power plants (NPPs)

Effects of Visual, Auditory, and Tactile Navigation Cues on Navigation Performance, Situation Awareness, and Mental Workload

National Research Council Canada - National Science Library

Davis, Bradley M

2007-01-01

.... Results from both experiments indicate that augmented visual displays reduced time to complete navigation, maintained situation awareness, and drastically reduced mental workload in comparison...

Heuristic guidelines and experimental evaluation of effective augmented-reality based instructions for maintenance in nuclear power plants

International Nuclear Information System (INIS)

Yim, Ho Bin; Seong, Poong Hyun

2010-01-01

Research highlights: → Augmented reality (AR) instructions were built for NPPs maintenance personnel. → 4-5 pieces of information at a time were optimum for AR instructions in this study. → A large variance in mode no. 5 implies these were also found to be critical amount. → Heuristic guidelines were suggested to make AR instructions more effective. - Abstract: As industrial plants and factories age, their maintenance requirements increase. Because maintenance mistakes directly increase the operating costs of a power plant, maintenance quality is significant concern to plant management. By law, all personnel working with nuclear technology must be re-trained every three years in Korea; however, as the statistical data show, the number of shutdown accidents at nuclear power plants (NPPs) due to maintenance failure is still high and needs to be reduced. Industries have started to adopt various technologies to increase the speed and accuracy of maintenance. Among those technologies, augmented reality (AR) is the latest multimedia presentation technology to be applied to plant maintenance, and it offers superior intuitiveness and user interactivity over other conventional multimedia. This empirical study aims to measure the optimum amounts of information to be delivered at a time and to identify what types of information enhance the learning ability of novices and to suggest heuristic guidelines by which to make effective AR training instructions. In the first experiment, the optimum amount of information in an AR learning environment for novices was found to be 4-5 pieces of information in a chunk by comparing results between a pre-test and an after-test. This result implies that intentionally made chunks help novices learn more effectively. In the second experiment, the AR training instruction based on the suggested heuristic guidelines was slightly more effective than other AR training instructions. Maintenance in nuclear power plants can be more reliable

The accident at TEPCO's Fukushima Dai-ichi Nuclear Power Station - occurrence of the accident, current situation and Future

International Nuclear Information System (INIS)

Hirose, K.

2013-01-01

In this presentation author analyse course of accident on Fukushima Dai-chi NPPs as well as consequences of this disaster. The following parts are presented: (1) Occurrence of the accident; (2) Evacuation of the residential people; (3) Deterioration and protraction of the accident; (4) Impact on society; (5) Situation of decontamination; (6) Long-term steps towards decommissioning; (7) Situation of other nuclear power stations; (8) Conclusions and lessons learned.

Situation of the radioactive waste management and the employee radiation exposure in commercial power generation reactor facilities in fiscal 1980

International Nuclear Information System (INIS)

1981-01-01

(1) Situation of the radioactive waste management in commercial power generating reactor facilities: The owners of power generation reactor facilities are obligated not to exceed the target dose around the sites by law in the radioactive waste management. The release of radioactive gaseous and liquid wastes and the storage of radioactive solid wastes in respective reactor facilities in fiscal 1980 are presented in tables (for the former, the data since 1971 are also given). The release control values were satisfied in all the facilities. (2) Situation of employe radiation exposure in commercial power generating reactor facilities: The owners of power generation reactor facilities are obligated not to exceed the permissible exposure doses by law. The Employe exposure doses in respective reactor facilities in fiscal 1980 are given in tables. All exposure doses were below the permissible levels. (J.P.N.)

Energy situation and nuclear power

Energy Technology Data Exchange (ETDEWEB)

Megahid, M R [Reactor and Neutron physics Department Nuclear Research Center A.E., Cairo (Egypt)

1997-12-31

A brief general review is given concerning the requirements of power throughout history with an indication to the world capital reserves of energy. The energy released from the conversion of mass in chemical and nuclear processes is also discussed with comparative analysis between conventional fuel fired plant and nuclear power plant having the same energy output. The advantages and disadvantages arising from having a nuclear power programme are also discussed. 1 fig.

Decommissioning situation and research and development for the decommissioning of the commercial nuclear power station in Japan

International Nuclear Information System (INIS)

Yamamoto, Tatsumi.

1996-01-01

There are 48 commercial nuclear power stations in operation in Japan as of January 1, 1995, which supplies about 28% (2.2 x 10 8 MWh) of total annual electricity generation in FY 1992. Accordingly, as the nuclear power contributes so much in electricity generation, there is a growing concern in the public toward the safety on decommissioning nuclear power station. It is gravely important to secure the safety throughout the decommissioning. This paper discusses: the decommissioning situation in Japan; the Japanese national policy for decommissioning of commercial nuclear power stations; R and D for decommissioning of commercial nuclear power stations in Japan; and the present conditions of low-level radioactive wastes disposal in Japan

Modeling of Communication in a Computational Situation Assessment Model

International Nuclear Information System (INIS)

Lee, Hyun Chul; Seong, Poong Hyun

2009-01-01

Operators in nuclear power plants have to acquire information from human system interfaces (HSIs) and the environment in order to create, update, and confirm their understanding of a plant state, or situation awareness, because failures of situation assessment may result in wrong decisions for process control and finally errors of commission in nuclear power plants. Quantitative or prescriptive models to predict operator's situation assessment in a situation, the results of situation assessment, provide many benefits such as HSI design solutions, human performance data, and human reliability. Unfortunately, a few computational situation assessment models for NPP operators have been proposed and those insufficiently embed human cognitive characteristics. Thus we proposed a new computational situation assessment model of nuclear power plant operators. The proposed model incorporating significant cognitive factors uses a Bayesian belief network (BBN) as model architecture. It is believed that communication between nuclear power plant operators affects operators' situation assessment and its result, situation awareness. We tried to verify that the proposed model represent the effects of communication on situation assessment. As the result, the proposed model succeeded in representing the operators' behavior and this paper shows the details

Augmented-Virtual Reality: How to improve education systems

Directory of Open Access Journals (Sweden)

Manuel Fernandez

2017-06-01

Full Text Available This essay presents and discusses the developing role of virtual and augmented reality technologies in education. Addressing the challenges in adapting such technologies to focus on improving students’ learning outcomes, the author discusses the inclusion of experiential modes as a vehicle for improving students’ knowledge acquisition. Stakeholders in the educational role of technology include students, faculty members, institutions, and manufacturers. While the benefits of such technologies are still under investigation, the technology landscape offers opportunities to enhance face-to-face and online teaching, including contributions in the understanding of abstract concepts and training in real environments and situations. Barriers to technology use involve limited adoption of augmented and virtual reality technologies, and, more directly, necessary training of teachers in using such technologies within meaningful educational contexts. The author proposes a six-step methodology to aid adoption of these technologies as basic elements within the regular education: training teachers; developing conceptual prototypes; teamwork involving the teacher, a technical programmer, and an educational architect; and producing the experience, which then provides results in the subsequent two phases wherein teachers are trained to apply augmented- and virtual-reality solutions within their teaching methodology using an available subject-specific experience and then finally implementing the use of the experience in a regular subject with students. The essay concludes with discussion of the business opportunities facing virtual reality in face-to-face education as well as augmented and virtual reality in online education.

Graphical user interface concepts for tactical augmented reality

Science.gov (United States)

Argenta, Chris; Murphy, Anne; Hinton, Jeremy; Cook, James; Sherrill, Todd; Snarski, Steve

2010-04-01

Applied Research Associates and BAE Systems are working together to develop a wearable augmented reality system under the DARPA ULTRA-Vis program†. Our approach to achieve the objectives of ULTRAVis, called iLeader, incorporates a full color 40° field of view (FOV) see-thru holographic waveguide integrated with sensors for full position and head tracking to provide an unobtrusive information system for operational maneuvers. iLeader will enable warfighters to mark-up the 3D battle-space with symbologic identification of graphical control measures, friendly force positions and enemy/target locations. Our augmented reality display provides dynamic real-time painting of symbols on real objects, a pose-sensitive 360° representation of relevant object positions, and visual feedback for a variety of system activities. The iLeader user interface and situational awareness graphical representations are highly intuitive, nondisruptive, and always tactically relevant. We used best human-factors practices, system engineering expertise, and cognitive task analysis to design effective strategies for presenting real-time situational awareness to the military user without distorting their natural senses and perception. We present requirements identified for presenting information within a see-through display in combat environments, challenges in designing suitable visualization capabilities, and solutions that enable us to bring real-time iconic command and control to the tactical user community.

Augmented reality social story for autism spectrum disorder

Science.gov (United States)

Syahputra, M. F.; Arisandi, D.; Lumbanbatu, A. F.; Kemit, L. F.; Nababan, E. B.; Sheta, O.

2018-03-01

Augmented Reality is a technique that can bring social story therapy into virtual world to increase intrinsic motivation of children with Autism Spectrum Disorder(ASD). By looking at the behaviour of ASD who will be difficult to get the focus, the lack of sensory and motor nerves in the use of loads on the hands or other organs will be very distressing children with ASD in doing the right activities, and interpret and understand the social situation in determining a response appropriately. Required method to be able to apply social story on therapy of children with ASD that is implemented with Augmented Reality. The output resulting from this method is 3D animation (three-dimensional animation) of social story by detecting marker located in special book and some simple game which done by using leap motion controller which is useful in reading hand movement in real-time.

Situated Dialogue and Spatial Organization: What, Where and Why?

Directory of Open Access Journals (Sweden)

Henrik I. Christensen

2008-11-01

Full Text Available The paper presents an HRI architecture for human-augmented mapping, which has been implemented and tested on an autonomous mobile robotic platform. Through interaction with a human, the robot can augment its autonomously acquired metric map with qualitative information about locations and objects in the environ- ment. The system implements various interaction strategies observed in independently performed Wizard-of-Oz studies. The paper discusses an ontology-based approach to multi-layered conceptual spatial mapping that pro- vides a common ground for human-robot dialogue. This is achieved by combining acquired knowledge with innate conceptual commonsense knowledge in order to infer new knowledge. The architecture bridges the gap between the rich semantic representations of the meaning expressed by verbal utterances on the one hand and the robot?s internal sensor-based world representation on the other. It is thus possible to establish references to spatial areas in a situated dialogue between a human and a robot about their environment. The resulting conceptual descrip- tions represent qualitative knowledge about locations in the environment that can serve as a basis for achieving a notion of situational awareness.

Situation and problematic of energy in China: nuclear power development perspectives

International Nuclear Information System (INIS)

Chavardes, D.

2004-09-01

The author first comments the Chinese GDP growth and electricity production increase, which raise the question of energy security and electricity shortage for this country. He comments the evolution of the primary energy assessment in China since 1996, and more precisely the evolutions of coal production and consumption, oil consumption (China is the second world consumer), gas consumption (the objective is to reach 7 % in 2010 and 10 % in 2020, and gas has to be imported). The author comments the evolution of the electric power sector in terms of production (thermal energy and hydraulic energy as sources, consumption evolution, and production stock), of capacity, of predictions for the next three years, and of implemented policies. He discusses the introduction and development of the electronuclear sector (objective of 36 GW in 2020, i.e. 4 % of the total installed power). The author then comments the development of the Chinese electronuclear program since its first steps in 1955 with the cooperation agreement with the USSR, the launching of a civilian program and the building of the first power plant, the French-Chinese cooperation which resulted in the construction of several plants. It outlines the initial dispersion of technologies and the focussing on pressurized water reactors. The author finally describes the current situation and the re-launching of a more-standardized nuclear program

Enhanced situation awareness and decision making for an intelligent reconfigurable reactor power controller

International Nuclear Information System (INIS)

Kenney, S.J.; Edwards, R.M.

1996-01-01

A Learning Automata based intelligent reconfigurable controller has been adapted for use as a reactor power controller to achieve improved reactor temperature performance. The intelligent reconfigurable controller is capable of enforcing either a classical or an optimal reactor power controller based on control performance feedback. Four control performance evaluation measures: dynamically estimated average quadratic temperature error, power, rod reactivity and rod reactivity rate were developed to provide feedback to the control decision component of the intelligent reconfigurable controller. Fuzzy Logic and Neural Network controllers have been studied for inclusion in the bank of controllers that form the intermediate level of an enhanced intelligent reconfigurable reactor power controller (IRRPC). The increased number of alternatives available to the supervisory level of the IRRPC requires enhanced situation awareness. Additional performance measures have been designed and a method for synthesizing them into a single indication of the overall performance of the currently enforced reactor power controller has been conceptualized. Modification of the reward/penalty scheme implemented in the existing IRRPC to increase the quality of the supervisory level decision process has been studied. The logogen model of human memory (Morton, 1969) and individual controller design information could be used to allocate reward to the most appropriate controller. Methods for allocating supervisory level attention were also studied with the goal of maximizing learning rate

Affective responses to emotional words are boosted in communicative situations.

Science.gov (United States)

Rohr, Lana; Abdel Rahman, Rasha

2015-04-01

Emotional verbal messages are typically encountered in meaningful contexts, for instance, during face-to-face communication in social situations. Yet, they are often investigated by confronting single participants with isolated words on a computer screen, thus potentially lacking ecological validity. In the present study we recorded event-related brain potentials (ERPs) during emotional word processing in communicative situations provided by videos of a speaker, assuming that emotion effects should be augmented by the presence of a speaker addressing the listener. Indeed, compared to non-communicative situations or isolated word processing, emotion effects were more pronounced, started earlier and lasted longer in communicative situations. Furthermore, while the brain responded most strongly to negative words when presented in isolation, a positivity bias with more pronounced emotion effects for positive words was observed in communicative situations. These findings demonstrate that communicative situations--in which verbal emotions are typically encountered--strongly enhance emotion effects, underlining the importance of social and meaningful contexts in processing emotional and verbal messages. Copyright © 2015 Elsevier Inc. All rights reserved.

Current situation of the project of 3. and 4. block of nuclear power plant Mochovce

International Nuclear Information System (INIS)

Suchy, L.

2006-01-01

The contribution shows the basic information about the crucial milestone of 3. building and the current situation of the project of 3. and 4. block of the nuclear power plant Mochovce. Contribution also shows what activities were realized and what material in area of designation of the technical and safety standard of the project was elaborated in the past, the main activities planned for 2006 have been described, support for Feasibility Study elaborated by ENEL and description of the integrated management system. The basic thesis crucial for the next steps on the project of 3. and 4. block of Nuclear Power Plant Mochovce is presented in the conclusion

Gas dynamic analysis of the performance of diffuser augmented ...

Indian Academy of Sciences (India)

A diffuser augmented wind turbine (DAWT) is considered an ... Maximum power rating ± for a given blade technology ± can be extended substantially by ... twist angles in addition to design parameters such as tip speed ratio with minimum ...

Secondary Breast Augmentation.

Science.gov (United States)

Brown, Mitchell H; Somogyi, Ron B; Aggarwal, Shagun

2016-07-01

After studying this article, the participant should be able to: 1. Assess common clinical problems in the secondary breast augmentation patient. 2. Describe a treatment plan to correct the most common complications of breast augmentation. 3. Provide surgical and nonsurgical options for managing complications of breast augmentation. 4. Decrease the incidence of future complications through accurate assessment, preoperative planning, and precise surgical technique. Breast augmentation has been increasing steadily in popularity over the past three decades. Many of these patients present with secondary problems or complications following their primary breast augmentation. Two of the most common complications are capsular contracture and implant malposition. Familiarity and comfort with the assessment and management of these complications is necessary for all plastic surgeons. An up-to-date understanding of current devices and techniques may decrease the need to manage future complications from the current cohort of breast augmentation patients.

CONTROLLING VIRTUAL CLOUDS AND MAKING IT RAIN PARTICLE SYSTEMS IN REAL SPACES USING SITUATED AUGMENTED SIMULATION AND PORTABLE VIRTUAL ENVIRONMENTS

Directory of Open Access Journals (Sweden)

N. Hedley

2012-07-01

Full Text Available The research described in this paper reports on the design, rationale, development and implementation of a set of new geospatial interfaces that combine multi-touch interaction, portable virtual environments, 'geosimulation gaming', and mobile augmented reality. The result is a set of new ways for us to combine the capabilities of geospatial virtual environments, augmented realitiy and geosimulation. These new hybrid interfaces deliver new geospatial information experiences – new ways of connecting spatial data, simulations, and abstract concepts to real spaces. Their potential to enhance environmental perception and learning must be explored.

Demonstration of a Novel Synchrophasor-based Situational Awareness System: Wide Area Power System Visualization, On-line Event Replay and Early Warning of Grid Problems

Energy Technology Data Exchange (ETDEWEB)

Rosso, A.

2012-12-31

Since the large North Eastern power system blackout on August 14, 2003, U.S. electric utilities have spent lot of effort on preventing power system cascading outages. Two of the main causes of the August 14, 2003 blackout were inadequate situational awareness and inadequate operator training In addition to the enhancements of the infrastructure of the interconnected power systems, more research and development of advanced power system applications are required for improving the wide-area security monitoring, operation and planning in order to prevent large- scale cascading outages of interconnected power systems. It is critically important for improving the wide-area situation awareness of the operators or operational engineers and regional reliability coordinators of large interconnected systems. With the installation of large number of phasor measurement units (PMU) and the related communication infrastructure, it will be possible to improve the operators’ situation awareness and to quickly identify the sequence of events during a large system disturbance for the post-event analysis using the real-time or historical synchrophasor data. The purpose of this project was to develop and demonstrate a novel synchrophasor-based comprehensive situational awareness system for control centers of power transmission systems. The developed system named WASA (Wide Area Situation Awareness) is intended to improve situational awareness at control centers of the power system operators and regional reliability coordinators. It consists of following main software modules: • Wide-area visualizations of real-time frequency, voltage, and phase angle measurements and their contour displays for security monitoring. • Online detection and location of a major event (location, time, size, and type, such as generator or line outage). • Near-real-time event replay (in seconds) after a major event occurs. • Early warning of potential wide-area stability problems. The system has been

A Study on User-Centered Approach to Design an Augmented Reality Maintenance Support System in Nuclear Power Plant

International Nuclear Information System (INIS)

Koo, Jwa Jin; Seong, Poong Hyun

2007-01-01

In nuclear power plants (NPPs), as the plants become more reliable and complex, their inspection, maintenance and repair become increasingly challenging problems, and this requires many well experienced and well trained maintenance crew. On the other hands, reduction of life cycle costs of the plants is strongly required, and many crews are required to take charge of various kinds of devices, including their unfamiliar ones. Their task must be done under the strong time pressure of rigid maintenance schedule. This may cause human errors even by even the well experienced crews. Maintenance processes are both very important to guarantee quality for safety and often quite cumbersome. In the case of nuclear power plants, such processes usually demand access to documentation such as technical manuals, either in traditional paper form or electronic form. This is especially important where and when the procedures are performed infrequently. These considerations lead to considering Augmented Reality (AR) systems as an alternative to paper-based systems

Into the Wild: Neuroergonomic Differentiation of Hand-Held and Augmented Reality Wearable Displays during Outdoor Navigation with Functional Near Infrared Spectroscopy.

Science.gov (United States)

McKendrick, Ryan; Parasuraman, Raja; Murtza, Rabia; Formwalt, Alice; Baccus, Wendy; Paczynski, Martin; Ayaz, Hasan

2016-01-01

Highly mobile computing devices promise to improve quality of life, productivity, and performance. Increased situation awareness and reduced mental workload are two potential means by which this can be accomplished. However, it is difficult to measure these concepts in the "wild". We employed ultra-portable battery operated and wireless functional near infrared spectroscopy (fNIRS) to non-invasively measure hemodynamic changes in the brain's Prefrontal cortex (PFC). Measurements were taken during navigation of a college campus with either a hand-held display, or an Augmented reality wearable display (ARWD). Hemodynamic measures were also paired with secondary tasks of visual perception and auditory working memory to provide behavioral assessment of situation awareness and mental workload. Navigating with an augmented reality wearable display produced the least workload during the auditory working memory task, and a trend for improved situation awareness in our measures of prefrontal hemodynamics. The hemodynamics associated with errors were also different between the two devices. Errors with an augmented reality wearable display were associated with increased prefrontal activity and the opposite was observed for the hand-held display. This suggests that the cognitive mechanisms underlying errors between the two devices differ. These findings show fNIRS is a valuable tool for assessing new technology in ecologically valid settings and that ARWDs offer benefits with regards to mental workload while navigating, and potentially superior situation awareness with improved display design.

Technological Augmentation of Human Cognition: An Interdisciplinary Review.

Science.gov (United States)

Smithsonian Institution, Washington, DC.

A series of five interdisciplinary conferences held over a two-year period explored new teaching and training concepts and methodologies which offer powerful, symbiotic means of augmenting human cognition. The basic discussion points of the conferences are summarized. It was felt that the conferences were significant in that they brought together…

Augmented reality

Directory of Open Access Journals (Sweden)

Patrik Pucer

2011-08-01

Full Text Available Today we can obtain in a simple and rapid way most of the information that we need. Devices, such as personal computers and mobile phones, enable access to information in different formats (written, pictorial, audio or video whenever and wherever. Daily we use and encounter information that can be seen as virtual objects or objects that are part of the virtual world of computers. Everyone, at least once, wanted to bring these virtual objects from the virtual world of computers into real environments and thus mix virtual and real worlds. In such a mixed reality, real and virtual objects coexist in the same environment. The reality, where users watch and use the real environment upgraded with virtual objects is called augmented reality. In this article we describe the main properties of augmented reality. In addition to the basic properties that define a reality as augmented reality, we present the various building elements (possible hardware and software that provide an insight into such a reality and practical applications of augmented reality. The applications are divided into three groups depending on the information and functions that augmented reality offers, such as help, guide and simulator.

Selection of the important performance influencing factors for the assessment of human error under accident management situations in nuclear power plants

International Nuclear Information System (INIS)

Kim, J. H.; Jung, W. J.

1999-01-01

This paper introduces the process and final results of selection of the important Performance Influencing Factors (PIFs) under emergency operation and accident management situations in nuclear power plants for use in the assessment of human errors. We collected two types of PIF taxonomies, one is the full set PIF list mainly developed for human error analysis, and the other is the PIFs for human reliability analysis (HRA) in probabilistic safety assessment (PSA). 5 PIF taxonomies among the full set PIF list and 10 PIF taxonomies among HRA methodologies (CREAM, SLIM, INTENT, were collected in this research. By reviewing and analyzing PIFs selected for HRA methodologies, the criterion could be established for the selection of appropriate PIFs under emergency operation and accident management situations. Based on this selection criteria, a new PIF taxonomy was proposed for the assessment of human error under emergency operation and accident management situations in nuclear power plants

Galena Electric Power A Situational Analysis

Energy Technology Data Exchange (ETDEWEB)

Robert E. Chaney; Stephen G. Colt; Ronald A. Johnson; Richard W. Wiles; Gregory J. White

2008-12-31

The purpose of the investigation is to compare the economics of various electrical power generation options for the City of Galena. Options were assessed over a 30-year project period, beginning in 2010, and the final results were compared on the basis of residential customer electric rates ($/kWh). Galena's electric utility currently generates power using internal combustion diesel engines and generator sets. Nearby, there is an exposed coal seam, which might provide fuel for a power plant. Contributions to the energy mix might come from solar, municipal solid waste, or wood. The City has also been approached by Toshiba, Inc., as a demonstration site for a small (Model 4S) nuclear reactor power plant. The Yukon River is possibly a site for in-river turbines for hydroelectric power. This report summarizes the comparative economics of various energy supply options. This report covers: (1) thermal and electric load profiles for Galena; (2) technologies and resources available to meet or exceed those loads; (3) uses for any extra power produced by these options; (4) environmental and permitting issues and then; and (5) the overall economics of each of the primary energy options.

Concept of an immersive assistance system with augmented reality for the support of manual activities in radioactive production environments

International Nuclear Information System (INIS)

Eursch, Andreas A.

2010-01-01

The thesis on an immersive assistance system concept with augmented reality for the support of manual activities in radioactive production environments covers the following topics: analysis of the situation: production and use of radioactive materials, problem analysis of the work in the production facilities, necessity of manual activities, automation, prediction in hot cells; status of research and development; assistance system concept, immersive camera system; augmented reality support in hot cells; economic evaluation and generalization.

Real-Life Challenges in Using Augmentative and Alternative Communication by Persons with Amyotrophic Lateral Sclerosis

Science.gov (United States)

Ray, Jayanti

2015-01-01

Given the linguistic and cognitive demands of communication, adult Augmentative and Alternative Communication (AAC) users with acquired communication disorders may have difficulty using AAC systems consistently and effectively in "real-life" situations. The process of recommending AAC systems and strategies is an area of exploration,…

Potential of augmented reality in sciences education. A literature review.

OpenAIRE

Swensen, Håkon

2016-01-01

POTENTIAL OF AUGMENTED REALITY IN SCIENCES EDUCATION A LITERATURE REVIEW H. Swensen Oslo and Akershus University College of Applied Sciences (NORWAY) Fewer and fewer students in Europe choose STEM education, while in today's job market have a growing need for people with such education. There are many reasons for this situation, but one important factor is that many students perceive school science as difficult. In science, there are many complex and abstract concepts to be learned, which put...

Situation of nuclear power generation in Europe

International Nuclear Information System (INIS)

Toukai, Kunihiro

2003-01-01

Nuclear power plants began to be built in Europe in the latter half of 1960. 146 plants are operating and generating about 33% of total power in 2002. France is top of Europe and operating 59 plants, which generate about 75% of power generation in the country. Germany is second and 30%. England is third and 30%. However, Germany decided not to build new atomic power plant in 2000. Movement of non-nuclear power generation is decreasing in Belgium and Switzerland. The liberalization of power generation decreased the wholesale price and BE Company in England was financial difficulties. New nuclear power generation is planning in Finland and France. (S.Y.)

LBAS: Lanczos Bidiagonalization with Subspace Augmentation for Discrete Inverse Problems

DEFF Research Database (Denmark)

Hansen, Per Christian; Abe, Kyniyoshi

The regularizing properties of Lanczos bidiagonalization are powerful when the underlying Krylov subspace captures the dominating components of the solution. In some applications the regularized solution can be further improved by augmenting the Krylov subspace with a low-dimensional subspace tha...

Education, Information Technologies, and the Augmentation of Human Intellect

Science.gov (United States)

Campbell, Gardner

2006-01-01

The author believes that information technologies are powerfully heuristic in addressing one of education's deepest ambitions. Following Engelbart's paradigm, he sees these technologies as augmenting human intellect, not simply because they permit high-speed calculations but also because they externalize our own cognitive processes in a way that…

AUGMENTED REALITY

DEFF Research Database (Denmark)

Skov, Kirsten; Bahn, Anne Louise

2017-01-01

Projektets grundlæggende idé er udvikling af visuel, æstetisk læring med Augmented Reality, hvor intentionen er at bidrage med konkrete undersøgelser og udforskning af begrebet Augmented Reality – herunder koblingen mellem det analoge og digitale i forhold til læring, multimodalitet og it...

Tracking for Outdoor Mobile Augmented Reality: Further development of the Zion Augmented Reality Application

OpenAIRE

Strand, Tor Egil Riegels

2008-01-01

This report deals with providing tracking to an outdoor mobile augmented reality system and the Zion Augmented Reality Application. ZionARA is meant to display a virtual recreation of a 13th century castle on the site it once stood through an augmented reality Head Mounted Display. Mobile outdoor augmented/mixed reality puts special demands on what kind of equipment is practical. After briefly evaluating the different existing tracking methods, a solution based on GPS and an augmented inertia...

AFFECTIVE COMPUTING AND AUGMENTED REALITY FOR CAR DRIVING SIMULATORS

Directory of Open Access Journals (Sweden)

Dragoș Datcu

2017-12-01

Full Text Available Car simulators are essential for training and for analyzing the behavior, the responses and the performance of the driver. Augmented Reality (AR is the technology that enables virtual images to be overlaid on views of the real world. Affective Computing (AC is the technology that helps reading emotions by means of computer systems, by analyzing body gestures, facial expressions, speech and physiological signals. The key aspect of the research relies on investigating novel interfaces that help building situational awareness and emotional awareness, to enable affect-driven remote collaboration in AR for car driving simulators. The problem addressed relates to the question about how to build situational awareness (using AR technology and emotional awareness (by AC technology, and how to integrate these two distinct technologies [4], into a unique affective framework for training, in a car driving simulator.

Mechanism of transient force augmentation varying with two distinct timescales for interacting vortex rings

Science.gov (United States)

Fu, Zhidong; Qin, Suyang; Liu, Hong

2014-01-01

The dynamics of dual vortex ring flows is studied experimentally and numerically in a model system that consists of a piston-cylinder apparatus. The flows are generated by double identical strokes which have the velocity profile characterized by the sinusoidal function of half the period. By calculating the total wake impulse in two strokes in the experiments, it is found that the average propulsive force increases by 50% in the second stroke for the sufficiently small stroke length, compared with the first stroke. In the numerical simulations, two types of transient force augmentation are revealed, there being the transient force augmentation for the small stroke lengths and the absolute transient force augmentation for the large stroke lengths. The relative transient force augmentation increases to 78% for L/D = 1, while the absolute transient force augmentation for L/D = 4 is twice as much as that for L/D = 1. Further investigation demonstrates that the force augmentation is attributed to the interaction between vortex rings, which induces transport of vortex impulse and more evident fluid entrainment. The critical situation of vortex ring separation is defined and indicated, with vortex spacing falling in a narrow gap when the stroke lengths vary. A new model is proposed concerning the limiting process of impulse, further suggesting that apart from vortex formation timescale, vortex spacing should be interpreted as an independent timescale to reflect the dynamics of vortex interaction.

Optimization of Wireless Optical Communication System Based on Augmented Lagrange Algorithm

International Nuclear Information System (INIS)

He Suxiang; Meng Hongchao; Wang Hui; Zhao Yanli

2011-01-01

The optimal model for wireless optical communication system with Gaussian pointing loss factor is studied, in which the value of bit error probability (BEP) is prespecified and the optimal system parameters is to be found. For the superiority of augmented Lagrange method, the model considered is solved by using a classical quadratic augmented Lagrange algorithm. The detailed numerical results are reported. Accordingly, the optimal system parameters such as transmitter power, transmitter wavelength, transmitter telescope gain and receiver telescope gain can be established, which provide a scheme for efficient operation of the wireless optical communication system.

The present shortage situation on the maintenance service market. A hopeless situation?; Marktengpaesse bei der Beschaffung von Instandhaltungsleistungen. Eine ausweglose Situation?

Energy Technology Data Exchange (ETDEWEB)

Benzel, F. [RWE Power AG, Grevenbroich (Germany). Technische Vergabe; Hopstein, H. [RWE Power AG, Grevenbroich (Germany). Einkauf Verfahrenstechnik FKW

2008-07-01

The market for new power plants is presently being dominated by dramatic price rises and fully booked manufacturing capacities over the next few years. This situation also causes severe problems in the procurement of maintenance services and spares. In many cases the suppliers of new power plants and maintenance services are identical and access the same human and production resources. The paper provides an insight into the measures taken by RWE Power to assure a reliable procurement of services. (orig.)

A solar PV augmented hybrid scheme for enhanced wind power generation through improved control strategy for grid connected doubly fed induction generator

Directory of Open Access Journals (Sweden)

Adikanda Parida

2016-12-01

Full Text Available In this paper, a wind power generation scheme using a grid connected doubly fed induction generator (DFIG augmented with solar PV has been proposed. A reactive power-based rotor speed and position estimation technique with reduced machine parameter sensitivity is also proposed to improve the performance of the DFIG controller. The estimation algorithm is based on model reference adaptive system (MRAS, which uses the air gap reactive power as the adjustable variable. The overall generation reliability of the wind energy conversion system can be considerably improved as both solar and wind energy can supplement each other during lean periods of either of the sources. The rotor-side DC-link voltage and active power generation at the stator terminals of the DFIG are maintained constant with minimum storage battery capacity using single converter arrangement without grid-side converter (GSC. The proposed scheme has been simulated and experimentally validated with a practical 2.5 kW DFIG using dSPACE CP1104 module which produced satisfactory results.

Understanding augmented reality concepts and applications

CERN Document Server

Craig, Alan B

2013-01-01

Augmented reality is not a technology. Augmented reality is a medium. Likewise, a book on augmented reality that only addresses the technology that is required to support the medium of augmented reality falls far short of providing the background that is needed to produce, or critically consume augmented reality applications. One reads a book. One watches a movie. One experiences augmented reality. Understanding Augmented Reality addresses the elements that are required to create compelling augmented reality experiences. The technology that supports

Multi-objective congestion management by modified augmented ε-constraint method

International Nuclear Information System (INIS)

Esmaili, Masoud; Shayanfar, Heidar Ali; Amjady, Nima

2011-01-01

Congestion management is a vital part of power system operations in recent deregulated electricity markets. However, after relieving congestion, power systems may be operated with a reduced voltage or transient stability margin because of hitting security limits or increasing the contribution of risky participants. Therefore, power system stability margins should be considered within the congestion management framework. The multi-objective congestion management provides not only more security but also more flexibility than single-objective methods. In this paper, a multi-objective congestion management framework is presented while simultaneously optimizing the competing objective functions of congestion management cost, voltage security, and dynamic security. The proposed multi-objective framework, called modified augmented ε-constraint method, is based on the augmented ε-constraint technique hybridized by the weighting method. The proposed framework generates candidate solutions for the multi-objective problem including only efficient Pareto surface enhancing the competitiveness and economic effectiveness of the power market. Besides, the relative importance of the objective functions is explicitly modeled in the proposed framework. Results of testing the proposed multi-objective congestion management method on the New-England test system are presented and compared with those of the previous single objective and multi-objective techniques in detail. These comparisons confirm the efficiency of the developed method. (author)

Live texturing of augmented reality characters from colored drawings.

Science.gov (United States)

Magnenat, Stéphane; Ngo, Dat Tien; Zünd, Fabio; Ryffel, Mattia; Noris, Gioacchino; Rothlin, Gerhard; Marra, Alessia; Nitti, Maurizio; Fua, Pascal; Gross, Markus; Sumner, Robert W

2015-11-01

Coloring books capture the imagination of children and provide them with one of their earliest opportunities for creative expression. However, given the proliferation and popularity of digital devices, real-world activities like coloring can seem unexciting, and children become less engaged in them. Augmented reality holds unique potential to impact this situation by providing a bridge between real-world activities and digital enhancements. In this paper, we present an augmented reality coloring book App in which children color characters in a printed coloring book and inspect their work using a mobile device. The drawing is detected and tracked, and the video stream is augmented with an animated 3-D version of the character that is textured according to the child's coloring. This is possible thanks to several novel technical contributions. We present a texturing process that applies the captured texture from a 2-D colored drawing to both the visible and occluded regions of a 3-D character in real time. We develop a deformable surface tracking method designed for colored drawings that uses a new outlier rejection algorithm for real-time tracking and surface deformation recovery. We present a content creation pipeline to efficiently create the 2-D and 3-D content. And, finally, we validate our work with two user studies that examine the quality of our texturing algorithm and the overall App experience.

Development of a standard communication protocol for an emergency situation management in nuclear power plants

Energy Technology Data Exchange (ETDEWEB)

Kim, Man Cheol, E-mail: charleskim@kaeri.re.k [Integrated Risk Assessment Center, Korea Atomic Energy Research Institute, 150, Deokjin-dong, Yuseong-gu, Daejeon 305-353 (Korea, Republic of); Park, Jinkyun; Jung, Wondea [Integrated Risk Assessment Center, Korea Atomic Energy Research Institute, 150, Deokjin-dong, Yuseong-gu, Daejeon 305-353 (Korea, Republic of); Kim, Hanjeom; Kim, Yoon Joong [YGN Nuclear Power Division Training Center, Korea Hydro and Nuclear Power Company, 517 Kyemari, Hongnong-eup, Yeongkwang-gun, Chonnam 513-880 (Korea, Republic of)

2010-06-15

Correct communication between main control room (MCR) operators is an important factor in the management of emergency situations in nuclear power plants (NPPs). For this reason, a standard communication protocol for the management of emergency situations in NPPs has been developed, with the basic direction of enhancing the safety of NPPs and the standardization of communication protocols. To validate the newly developed standard communication protocol, validation experiments with 10 licensed NPP MCR operator teams was performed. From the validation experiments, it was found that the use of the standard communication protocol required more time, but it can contribute to the enhancement of the safety of NPPs by an operators' better grasp of the safety-related parameters and a more efficient and clearer communication between NPP operators, while imposing little additional workloads on the NPP MCR operators. The standard communication protocol is expected to be used to train existing NPP MCR operators without much aversion, as well as new operators.

The development of a speech act coding scheme to characterize communication patterns under an off-normal situation in nuclear power plants

International Nuclear Information System (INIS)

Kim, Seung Hwan; Park, Jin Kyun

2009-01-01

Since communication is an important means to exchange information between individuals/teams or auxiliary means to share resources and information given in the team and group activity, effective communication is the prerequisite for construct powerful teamwork by a sharing mental model. Therefore, unless communication is performed efficiently, the quality of task and performance of team lower. Furthermore, since communication is highly related to situation awareness during team activities, inappropriate communication causes a lack of situation awareness and tension and stress are intensified and errors are increased. According to lesson learned from several accidents that have actually occurred in nuclear power plant (NPP), consequence of accident leads most critical results and is more dangerous than those of other industries. In order to improve operator's cope ability and operation ability through simulation training with various off-normal condition, the operation groups are trained regularly every 6 months in the training center of reference NPP. The objective of this study is to suggest modified speech act coding scheme and to elucidate the communication pattern characteristics of an operator's conversation during an abnormal situation in NPP

Situation and development trend of nuclear power and uranium industry in the united states and Russia

International Nuclear Information System (INIS)

Tan Chenglong

2005-01-01

This paper introduces the situation, trend of nuclear electrical and uranium industry in the United States and Russia. The United States and Russia are the two biggest countries in the world which generated nuclear power earliest. After 40 years' development, nuclear power in the United States and Russia are approximately 20%, 11% respectively of the total generation capacity in 2001. In the United States, only 6% of the nuclear power consumed uranium resource is domestic, in Russia about half of its uranium production is for export. Due to the collision between the energy development and environment protection, nuclear power in USA is still strong, but the uranium industry declines. In the future, uranium production for nuclear power in the United States will depend on the international market and the uranium storage of different levels. On the basis of pacifying people and making the country prosper, Russia has established their great plans for nuclear power with their substantial uranium resources. The author considers the supply and demand of uranium industry will remain balanced in the future decade on the whole, despite the United States and Russia's trend of uranium industry could take a major effect on uranium industry to the world. (authors)

Latency and distortion of electromagnetic trackers for augmented reality systems

CERN Document Server

Himberg, Henry

2014-01-01

Augmented reality (AR) systems are often used to superimpose virtual objects or information on a scene to improve situational awareness. Delays in the display system or inaccurate registration of objects destroy the sense of immersion a user experiences when using AR systems. AC electromagnetic trackers are ideal for these applications when combined with head orientation prediction to compensate for display system delays. Unfortunately, these trackers do not perform well in environments that contain conductive or ferrous materials due to magnetic field distortion without expensive calibration

Wearable computer for mobile augmented-reality-based controlling of an intelligent robot

Science.gov (United States)

Turunen, Tuukka; Roening, Juha; Ahola, Sami; Pyssysalo, Tino

2000-10-01

An intelligent robot can be utilized to perform tasks that are either hazardous or unpleasant for humans. Such tasks include working in disaster areas or conditions that are, for example, too hot. An intelligent robot can work on its own to some extent, but in some cases the aid of humans will be needed. This requires means for controlling the robot from somewhere else, i.e. teleoperation. Mobile augmented reality can be utilized as a user interface to the environment, as it enhances the user's perception of the situation compared to other interfacing methods and allows the user to perform other tasks while controlling the intelligent robot. Augmented reality is a method that combines virtual objects into the user's perception of the real world. As computer technology evolves, it is possible to build very small devices that have sufficient capabilities for augmented reality applications. We have evaluated the existing wearable computers and mobile augmented reality systems to build a prototype of a future mobile terminal- the CyPhone. A wearable computer with sufficient system resources for applications, wireless communication media with sufficient throughput and enough interfaces for peripherals has been built at the University of Oulu. It is self-sustained in energy, with enough operating time for the applications to be useful, and uses accurate positioning systems.

Augmented Reality in Sports: Today and Tomorrow

Directory of Open Access Journals (Sweden)

Zafer BOZYER

2015-08-01

Full Text Available The rapid change experienced in the field of Information Technologies makes the informati cs more tangible in daily life. Today, it became possible to encounter with the informatics applications almost all the disciplines. As a matter of course, many informatics applications are put into the practice regarding the sports discipline. Because of the condition that the power of information processing has increased and the studies on wearable technol ogies in addition to the expert system design, augmented reality (AR has become a topic which gains imp ortance in the field of sports. There are many studies that are conducted with the aim of increasing the efficiency of physical activities done in many sports branches, ensuring a more fair management of competitions and providing the opportunity for spectators to watch the competitions in a more comfortable and efficient way. In this study; the information about the current augmented reality practices th at are used in various sports branches has been given and the mobile and interactive augmented reality practices which are possible to be seen in future have been mentioned. In addition, there is an augmented reality practice which is designed with the aim of ensuring that the shoots of sports people who are interested in archery, are more stable and of ensuring that the trainings and exercises are more efficient by stating to the sports people whether he or she is in the right position for shoot which is c alled as T shape seen at the time of releasing the arrow.

Rancang Bangun Aplikasi Augmented Reality Museum Bali Berbasis Android Studi Kasus Gedung Karangasem dan Gedung Tabanan

Directory of Open Access Journals (Sweden)

I Gede Aditya Nugraha

2016-08-01

Full Text Available Museum Bali is one of the museum which is located in Denpasar City that established since 1910. The Museum collections consist of items such as living equipment, art, religion, handwriting, and other things that show the situation and the development of the Balinese culture. Augmented Reality is a technology which combines two-dimensional virtual objects or three-dimensional virtual objects into the real environment. Museum Bali has decreased the amount of visitors in recent years and requires an innovation to promote Museum Bali. One innovation that is expected to promote the Museum Bali is to create an augmented reality application that called Augmented Reality Museum Bali in Android platform. Utilizing augmented reality technology that works by detecting the marker then it show up the 3D object and the information from one of the objectsin Museum Bali. Markerless method used in detection marker that make this application moreattractive and expected to be a new experience for the people who want to know more about Museum Bali.

Bone Augmentation in Rabbit Tibia Using Microfixed Cobalt-Chromium Membranes with Whole Blood and Platelet-Rich Plasma

Directory of Open Access Journals (Sweden)

Oscar A. Decco

2015-07-01

Full Text Available Background: Bone augmentation is a subject of intensive investigation in regenerative bone medicine and constitutes a clinical situation in which autogenous bone grafts or synthetic materials are used to aid new bone formation. Method: Based on a non-critical defect, Co-Cr barrier membranes were placed on six adult Fauve de Bourgogne rabbits, divided into two groups: whole blood and PRP. Three densitometric controls were performed during the experiment. The animals were euthanized at 30, 45, 60, and 110 days. The presence of newly formed bone was observed. Samples for histological studies were taken from the augmentation center. Results: External and internal bone tissue augmentation was observed in almost all cases. Significant differences between PRP- and whole blood–stimulated bone augmentation were not observed. At 60 days, bones with PRP presented higher angiogenesis, which may indicate more proliferation and cellular activity. Conclusion: PRP activates the bone regeneration process under optimized conditions by stimulation of osteoblast proliferation after six weeks, when a significant difference in cellular activity was observed. Membranes could stimulate bone augmentation at the site of placement and in the surrounding areas.

Situation of nuclear power generation in Sweden

Energy Technology Data Exchange (ETDEWEB)

Sandstroem, S [Swedish Atomic Forum

1978-01-01

In Sweden, nuclear power generation was received initially favorably. In the end of 1960s, however, nuclear power generation got involved in the activities of environment preservation. Then, political parties became opposed to nuclear power generation, and now, the need of nuclear power generation itself is regarded as questionable. In the general election in 1976, the Government opposing the nuclear power generation won. As the result, the conditional nuclear power development law and the energy committee were set up. The committee composed of parliament members, experts, and representatives of enterprises and trade unions is to submit its report so that the parliament can prepare a new energy program in the fall of 1978. Meanwhile, the nuclear fuel safety project formed newly has studied to satisfy the conditions of the law. In Sweden, which has developed nuclear reactors independently from the technology of USA, the oppositions are on the decrease, however. It is awaited what decision will be made by the Government in this fall.

Jointly Optimize Data Augmentation and Network Training: Adversarial Data Augmentation in Human Pose Estimation

OpenAIRE

Peng, Xi; Tang, Zhiqiang; Yang, Fei; Feris, Rogerio; Metaxas, Dimitris

2018-01-01

Random data augmentation is a critical technique to avoid overfitting in training deep neural network models. However, data augmentation and network training are usually treated as two isolated processes, limiting the effectiveness of network training. Why not jointly optimize the two? We propose adversarial data augmentation to address this limitation. The main idea is to design an augmentation network (generator) that competes against a target network (discriminator) by generating `hard' au...

Confronting an augmented reality

Directory of Open Access Journals (Sweden)

John Hedberg

2012-08-01

Full Text Available How can educators make use of augmented reality technologies and practices to enhance learning and why would we want to embrace such technologies anyway? How can an augmented reality help a learner confront, interpret and ultimately comprehend reality itself? In this article, we seek to initiate a discussion that focuses on these questions, and suggest that they be used as drivers for research into effective educational applications of augmented reality. We discuss how multi-modal, sensorial augmentation of reality links to existing theories of education and learning, focusing on ideas of cognitive dissonance and the confrontation of new realities implied by exposure to new and varied perspectives. We also discuss connections with broader debates brought on by the social and cultural changes wrought by the increased digitalisation of our lives, especially the concept of the extended mind. Rather than offer a prescription for augmentation, our intention is to throw open debate and to provoke deep thinking about what interacting with and creating an augmented reality might mean for both teacher and learner.

Camera Based Navigation System with Augmented Reality

Directory of Open Access Journals (Sweden)

M. Marcu

2012-06-01

Full Text Available Nowadays smart mobile devices have enough processing power, memory, storage and always connected wireless communication bandwidth that makes them available for any type of application. Augmented reality (AR proposes a new type of applications that tries to enhance the real world by superimposing or combining virtual objects or computer generated information with it. In this paper we present a camera based navigation system with augmented reality integration. The proposed system aims to the following: the user points the camera of the smartphone towards a point of interest, like a building or any other place, and the application searches for relevant information about that specific place and superimposes the data over the video feed on the display. When the user moves the camera away, changing its orientation, the data changes as well, in real-time, with the proper information about the place that is now in the camera view.

Cellular computational generalized neuron network for frequency situational intelligence in a multi-machine power system.

Science.gov (United States)

Wei, Yawei; Venayagamoorthy, Ganesh Kumar

2017-09-01

To prevent large interconnected power system from a cascading failure, brownout or even blackout, grid operators require access to faster than real-time information to make appropriate just-in-time control decisions. However, the communication and computational system limitations of currently used supervisory control and data acquisition (SCADA) system can only deliver delayed information. However, the deployment of synchrophasor measurement devices makes it possible to capture and visualize, in near-real-time, grid operational data with extra granularity. In this paper, a cellular computational network (CCN) approach for frequency situational intelligence (FSI) in a power system is presented. The distributed and scalable computing unit of the CCN framework makes it particularly flexible for customization for a particular set of prediction requirements. Two soft-computing algorithms have been implemented in the CCN framework: a cellular generalized neuron network (CCGNN) and a cellular multi-layer perceptron network (CCMLPN), for purposes of providing multi-timescale frequency predictions, ranging from 16.67 ms to 2 s. These two developed CCGNN and CCMLPN systems were then implemented on two different scales of power systems, one of which installed a large photovoltaic plant. A real-time power system simulator at weather station within the Real-Time Power and Intelligent Systems (RTPIS) laboratory at Clemson, SC, was then used to derive typical FSI results. Copyright © 2017 Elsevier Ltd. All rights reserved.

Actuation Using Piezoelectric Materials: Application in Augmenters, Energy Harvesters, and Motors

Science.gov (United States)

Hasenoehrl, Jennifer

2012-01-01

Piezoelectric actuators are used in many manipulation, movement, and mobility applications as well as transducers and sensors. When used at the resonance frequencies of the piezoelectric stack, the actuator performs at its maximum actuation capability. In this Space Grant internship, three applications of piezoelectric actuators were investigated including hammering augmenters of rotary drills, energy harvesters, and piezo-motors. The augmenter shows improved drill performance over rotation only. The energy harvesters rely on moving fluid to convert mechanical energy into electrical power. Specific designs allow the harvesters more freedom to move, which creates more power. The motor uses the linear movement of the actuator with a horn applied to the side of a rotor to create rotational motion. Friction inhibits this motion and is to be minimized for best performance. Tests and measurements were made during this internship to determine the requirements for optimal performance of the studied mechanisms and devices.

Demographic comparison of the Barsebaeck nuclear power plant with plants situated near large cities and national borders

International Nuclear Information System (INIS)

Walmod-Larsen, O.; Starcke, K.

1984-06-01

The Swedish-Danish Barsebaeck committee suggested in June 1983 that a demographic comparison of the Barsebaeck nuclear power plant be made with plants situated near other large cities and national borders. Sixteen other nuclear power plants: 13 in Western Europe, 2 in USA and 1 in Canada were chosen for the comparison. For five discrete distances out to 50 km, the population distributions have been found and compared. In addition the positions, related to the plants, of institutions, administrative centres, communication centres and other plants of public importance within the country or in neughbouring countries are described. Finally, the details of special agreements are given together with negotiations between neighbouring countries or internationally about nuclear power related matters. These include alarm and emergency procedures and agreements about liability in case of an accident in a neighbouring country. (author)

Technical and economic assessment of fluidized bed augmented compressed air energy storage system. Volume III. Preconceptual design

Energy Technology Data Exchange (ETDEWEB)

Giramonti, A.J.; Lessard, R.D.; Merrick, D.; Hobson, M.J.

1981-09-01

A technical and economic assessment of fluidized bed combustion augmented compressed air energy storage systems is presented. The results of this assessment effort are presented in three volumes. Volume III - Preconceptual Design contains the system analysis which led to the identification of a preferred component configuration for a fluidized bed combustion augmented compressed air energy storage system, the results of the effort which transformed the preferred configuration into preconceptual power plant design, and an introductory evaluation of the performance of the power plant system during part-load operation and while load following.

Methodology for the identification of the factors that can influence the performance of operators of nuclear power plants control room under emergency situations

International Nuclear Information System (INIS)

Paiva, Bernardo Spitz; Santos, Isaac J.A. Luquetti

2009-01-01

In order to minimize the human errors of the operators in a nuclear power plan control room, during emergency situations, it has to be considered the factors which affect the human performance. Work situations adequately projected, compatible with the necessities, capacities and human limitations, taking into consideration the factors which affect the operator performance . This paper aims to develop a methodology for identification of the factors affecting the operator performance under emergency situation, using the aspects defined by the human reliability analysis focusing the judgment done by specialists

Design and testing of a 0.60 caliber, augmented railgun

International Nuclear Information System (INIS)

Fuller, R.L.; Kitzmiller, J.R.; Ingram, M.W.

1991-01-01

The Center for Electromechanics at The University of Texas at Austin (CEM-UT) is currently in the manufacturing phase of a 29-month program to build and test a laboratory based small caliber electromagnetic (EM) launcher and compulsator power supply. The goal of the EM launcher is to deliver a three shot projectile salvo at 10 Hz. The muzzle energy of each 32-g projectile is 64 kJ, which yields an exit velocity of 2,000 m/s. A full-scale, 0.60 caliber, 1.6 m prototype railgun has been built and is currently being tested at CEM-UT. This augmented railgun incorporates a low mass, high inductance gradient (1.25 μH/m) design. High strength stainless-steel laminations support the primary and augmenting rail package in a compact and inherently stiff design. Rail erosion is minimized by the use of molybdenum for the primary rails. Copper is used for the end turns and augmenting conductors to ensure reliable bolted connections and to reduce the overall gun resistance. The laminations are insulated using epoxy adhesive and held in compression using an overwrapped composite preload tube. The entire gun weighs less than 100 kg and will be mounted to a recoil mechanism when fired from the compulsator power supply. This paper presents the design for the 0.60 caliber augmented, laminated, solid-armature railgun. Included is the discussion of the magnetic pressure distribution and heating on the molybdenum and copper conductors, and gun stiffness as predicted by finite-element analysis. The inductance gradient is calculated and correlated to experimental results. The materials selection, fabrication details, and insulation methods are also discussed. Finally, gun performance is presented through experimental data collected from testing solid armature projectiles

The development of a speech act coding scheme to characterize communication patterns under an off-normal situation in nuclear power plants

Energy Technology Data Exchange (ETDEWEB)

Kim, Seung Hwan; Park, Jin Kyun [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

2009-05-15

Since communication is an important means to exchange information between individuals/teams or auxiliary means to share resources and information given in the team and group activity, effective communication is the prerequisite for construct powerful teamwork by a sharing mental model. Therefore, unless communication is performed efficiently, the quality of task and performance of team lower. Furthermore, since communication is highly related to situation awareness during team activities, inappropriate communication causes a lack of situation awareness and tension and stress are intensified and errors are increased. According to lesson learned from several accidents that have actually occurred in nuclear power plant (NPP), consequence of accident leads most critical results and is more dangerous than those of other industries. In order to improve operator's cope ability and operation ability through simulation training with various off-normal condition, the operation groups are trained regularly every 6 months in the training center of reference NPP. The objective of this study is to suggest modified speech act coding scheme and to elucidate the communication pattern characteristics of an operator's conversation during an abnormal situation in NPP.

The 'practical elimination' approach of accident situations for water-cooled nuclear power reactors 2017

International Nuclear Information System (INIS)

2017-01-01

The implementation of the defence in depth principle and current regulations have lead applicants to define provisions to prevent accidents, including severe accidents, and to limit their consequences should they occur. However, while defining the design orientations for a new water-cooled power reactor, applicants shall use the 'practical elimination' approach for severe accident situations (in the reactor core or the spent fuel pool) potentially leading to large early radiological releases, where it appears impossible to define realistic and demonstrable provisions to limit their consequences according to current knowledge and the techniques available at the time. The use of this approach should be discussed between the applicant and the safety authority at the design orientations stage; the authority will specify on a case-by-case basis the conditions for its approval. In order to 'practically eliminate' a situation, the designer shall first examine the possibility for making it physically impossible. Where physical impossibility cannot be achieved, provisions shall be implemented to justify with a high degree of confidence that the situation is extremely unlikely. Situations likely to be 'practically eliminated' are diverse (massive and rapid reactivity insertion accidents, explosions, containment bypasses, etc.); the justification of 'practical elimination' can only be assessed on a case-by-case basis, using deterministic considerations complemented by a probabilistic analysis. The assessment relies on the reactor physical characteristics as well as on the robustness and reliability of the lines of defence implemented to prevent the situation to be 'practically eliminated'. The implemented provisions shall be subject to strong design, manufacturing and operation requirements; considerations related to human factors and hazards shall also be taken into account. This document is an orientation text which defines

Accident of the Fukushima-Daiichi nuclear power station. Situation two years after the event - IRSN file

International Nuclear Information System (INIS)

2013-03-01

Two years after the Fukushima accident, this report proposes a review of the situation in Japan, and of the European and international actions aimed at preventing the occurrence of another nuclear accident and its radiological consequences. It is based on information available at the end of January or February 2013. After a recall of the situation in Japan and Europe in 2011 (recall of the accident, of the different simulation, calculation and information actions undertaken by the IRSN, launching of a program of additional safety assessments and of European stress tests), the report addresses the situation in Japan two years after the accident: evolution of the nuclear risk management governance, status of the Fukushima-Daiichi power station, health and environmental impact and management of the post-accidental phase, actions undertaken by the IRSN (dose assessment, cooperation in the field of severe accidents, participation to the Fukushima Dialogue). The next part details the contribution of the IRSN to the strengthening of safety and radiation protection at the international level (in relationship with international organizations: IAEA, UNSCEAR and WHO). Additional technical information is provided in appendix, as well as a report on the environmental impact of the accident, and a report on the post-accidental management of the accident

The nuclear power situation in Finland

International Nuclear Information System (INIS)

Miettinen, J.K.

1976-01-01

and's limited choice of energy sources makes nuclear power especially lly attractive and it is estimated that in 1985 14% of the energy consumed will be nuclear, which will then be the second most important source after oil (49%). Four power reactors, Loviisa 1 and 2 and TVO 1 and 2, are at present under construction. The first two are Russian PWRs, the latter two Asea-Atom BWRs. Loviisa 3 and 4 are planned but not yet ordered, and plans for a 1000 MWe plant to the West of Helsinki exist. The nuclear controversy in Finland has mainly been repetitions of the US and Swedish debates since 1970. However, local opposition to the project W. of Helsinki, based on the sociological effects of the inflow of Finnish speaking workers into a rural Swedish speaking district has become apparent. In the long term 13 major nuclear power plants are envisaged by the year 2000. Finland is party to the NPT and the IAEA safeguard system. (JIW)

Disadvantageous Situation of Retail Investors in Equity Crowdfunding

Institute of Scientific and Technical Information of China (English)

Shuanglong Wan

2017-01-01

This essay focuses on the onerous situation of retail investors in the proliferating equity crowdfunding. It points out and explains in detail four aspects of situation: insufficient information, misleading information, weak bargaining power and low liqui

Mobile Augmented Reality Applications

OpenAIRE

Prochazka, David; Stencl, Michael; Popelka, Ondrej; Stastny, Jiri

2011-01-01

Augmented reality have undergone considerable improvement in past years. Many special techniques and hardware devices were developed, but the crucial breakthrough came with the spread of intelligent mobile phones. This enabled mass spread of augmented reality applications. However mobile devices have limited hardware capabilities, which narrows down the methods usable for scene analysis. In this article we propose an augmented reality application which is using cloud computing to enable using...

Energy situation november 2002

International Nuclear Information System (INIS)

2002-12-01

The monthly situation analysis in France is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Energy situation August 2002

International Nuclear Information System (INIS)

2002-09-01

The monthly situation analysis in France is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Present situation of occupational radiation exposure in nuclear power plants

International Nuclear Information System (INIS)

Imabori, Akira

1979-01-01

The present situation of the radiation exposure of workers, including both employes and subcontractors, in the nuclear power plants in Japan, is presented. Twenty seven nuclear power reactors in operation and under construction are tabulated with the name, the owner, the electric output and the commissioning year of each plant. The results of exposure of the workers in these plants are shown, classifying the dose rate into less than 0.5 rem, 0.5 - 1.5 rem, 1.5 - 2.5 rem, 2.5 - 5 rem and more than 5 rem, and the workers into employes and subcontractors. It is noted that the exposure dose of the subcontractors occupies about 88% of all exposure dose, and the exposure is concentrated during regular inspection period. The exposure dose of about 80% of the workers is less than 0.5 rem, and no one was irradiated more than 5 rem in a year. The total exposure dose, which has especially the tendency of increasing with extended maintenance period and decreasing during plant operation period, shows also the trend of increasing with the lapse of operation years. As for the point of view of whole exposure dose, the value is 0.06 -- 0.43 man-rem/10 6 kWh in 1976 FY. It is considered to be necessary to grasp the total exposure dose of each worker wandering from one plant to another, and the central registration center for the workers in radioactive environment was established in 1978. The whole exposure dose data of each worker are stored in the central computer in this center. This system is highly appreciated in radiation exposure management. The total exposure dose is related to the rate of utilization of nuclear plants, and it is expected to decrease with the decrease of plant outage. (Nakai, Y.)

Augmenting Clozapine With Sertindole

DEFF Research Database (Denmark)

Nielsen, Jimmi; Emborg, Charlotte; Gydesen, Susanne

2012-01-01

Clozapine augmentation with antipsychotic drugs is widely used despite sparse evidence supporting this strategy. Sertindole is a nonsedating atypical antipsychotic drug with low affinity for cholinergic receptors, which makes it potentially suitable for augmentation of clozapine. The study design...... glucose, lipids, and electrocardiogram. Clozapine augmentation with sertindole was not superior to placebo regarding total score or subscale score of the Positive and Negative Syndrome Scale, Clinical Global Impression, World Health Organization Quality of Life Brief, or Drug Attitude Inventory....... No increased adverse effects compared with placebo were found. Four patients randomized to sertindole experienced a significant worsening of psychosis, and 2 of them required psychiatric admission. Metabolic parameters were unchanged during the study, but augmentation of clozapine with sertindole...

Virtual interactive presence and augmented reality (VIPAR) for remote surgical assistance.

Science.gov (United States)

Shenai, Mahesh B; Dillavou, Marcus; Shum, Corey; Ross, Douglas; Tubbs, Richard S; Shih, Alan; Guthrie, Barton L

2011-03-01

Surgery is a highly technical field that combines continuous decision-making with the coordination of spatiovisual tasks. We designed a virtual interactive presence and augmented reality (VIPAR) platform that allows a remote surgeon to deliver real-time virtual assistance to a local surgeon, over a standard Internet connection. The VIPAR system consisted of a "local" and a "remote" station, each situated over a surgical field and a blue screen, respectively. Each station was equipped with a digital viewpiece, composed of 2 cameras for stereoscopic capture, and a high-definition viewer displaying a virtual field. The virtual field was created by digitally compositing selected elements within the remote field into the local field. The viewpieces were controlled by workstations mutually connected by the Internet, allowing virtual remote interaction in real time. Digital renderings derived from volumetric MRI were added to the virtual field to augment the surgeon's reality. For demonstration, a fixed-formalin cadaver head and neck were obtained, and a carotid endarterectomy (CEA) and pterional craniotomy were performed under the VIPAR system. The VIPAR system allowed for real-time, virtual interaction between a local (resident) and remote (attending) surgeon. In both carotid and pterional dissections, major anatomic structures were visualized and identified. Virtual interaction permitted remote instruction for the local surgeon, and MRI augmentation provided spatial guidance to both surgeons. Camera resolution, color contrast, time lag, and depth perception were identified as technical issues requiring further optimization. Virtual interactive presence and augmented reality provide a novel platform for remote surgical assistance, with multiple applications in surgical training and remote expert assistance.

[Augmentation technique on the proximal humerus].

Science.gov (United States)

Scola, A; Gebhard, F; Röderer, G

2015-09-01

The treatment of osteoporotic fractures is still a challenge. The advantages of augmentation with respect to primary in vitro stability and the clinical use for the proximal humerus are presented in this article. In this study six paired human humeri were randomized into an augmented and a non-augmented group. Osteosynthesis was performed with a PHILOS plate (Synthes®). In the augmented group the two screws finding purchase in the weakest cancellous bone were augmented. The specimens were tested in a 3-part fracture model in a varus bending test. The augmented PHILOS plates withstood significantly more load cycles until failure. The correlation to bone mineral density (BMD) showed that augmentation could partially compensate for low BMD. The augmentation of the screws in locked plating in a proximal humerus fracture model is effective in improving the primary stability in a cyclic varus bending test. The targeted augmentation of two particular screws in a region of low bone quality within the humeral head was almost as effective as four screws with twice the amount of bone cement. Screw augmentation combined with a knowledge of the local bone quality could be more effective in enhancing the primary stability of a proximal humerus locking plate because the effect of augmentation can be exploited more effectively limiting it to the degree required. The technique of augmentation is simple and can be applied in open and minimally invasive procedures. When the correct procedure is used, complications (cement leakage into the joint) can be avoided.

Augmented reality and ubiquitous computing : The hidden potentialities of augmented reality

NARCIS (Netherlands)

Liberati, Nicola

2016-01-01

The aim of this paper was to highlight the augmented reality’s potentialities, depicting its main characteristics and focusing attention on what its goal should be in order to have a new technology completely different from those that already exist. From a technological point of view, augmented

Capillary Refill using Augmented Reality

OpenAIRE

Clausen, Christoffer

2017-01-01

Master's thesis in Computer science The opportunities within augmented reality is growing. Augmented reality is a combination of the real and the virtual world in real time, and large companies like Microsoft and Google is now investing heavily in the technology. This thesis presents a solution for simulating a medical test called capillary refill, by using augmented reality. The simulation is performed with an augmented reality headset called HoloLens. The HoloLens will recognise a mark...

Centers of Excellence Contribution to Knowledge Augmentation

International Nuclear Information System (INIS)

Mignone, O.

2016-01-01

Full text: Knowledge management is a key need of the nuclear industry to cope with the knowledge limited augmentation and the risks of knowledge loss due to a number of reasons, such as: staff attrition, organizational changes, upgraded technologies, new projects implementation, and the nuclear power evolution in recent years (i.e., post-Fukushima upgrades). This document describes the contribution of nuclear centers of excellence to knowledge augmentation. The effective implementation of nuclear centers of excellence is a key success factor for the knowledge management programme of nuclear organizations. This document, is based on a real example of operating organization approach in launching such initiative for staff knowledge augmentation and performance improvement. Eventually, any type of organizations in the nuclear sector could apply the proposed technique to reach better knowledge usage. The nuclear centers of excellence are a key knowledge management initiative for the learning organizations that are caring about organizational intellectual capital and striving for performance improvement. The nuclear centers of excellence can be realized as a forum to exchange ideas, knowledge, information, experiences; to collect lessons learned; and to identify areas for improvement where further organizational competence building is needed. Usual realization of this initiative is going through an active staff involvement in knowledge sharing in a form of different technical communities of practice focusing on specific knowledge domains. (author

Life extension of nuclear power plants. World situation and the USA case

International Nuclear Information System (INIS)

Leon, Pablo T.; Cuesta, Loreto; Serra, Eduardo; Yaguee, Luis

2010-01-01

Life extension of Nuclear Power Plants above 40 years of operation is an important issue in many countries. The Kyoto limits for CO 2 emissions, the security of supply, the costs and predictability of renewable energy, etc., are putting nuclear energy in the agenda of many countries all around the world. The delay, due to the economic crisis, of the new nuclear projects in many countries, push governments to continue operation of nuclear plants above the 40 years design life. This is the case in the USA, where 59 units have obtained the extension of operation license from 40 to 60 years, and currently have 19 units are in the reviewing process. The life extension of these plants permits savings in CO 2 emissions and in the consumption of additional amounts of fossil fuels. In this paper, the position of the different nuclear countries about the Extension of Life will be reviewed, with a special emphasis on the situation in the USA. In this last case, the NRC approach for operation licenses above 40 years will be explained, and actions taken by nuclear companies in the country will be reviewed. In this country, the debate about life extension over 40 years has been surpassed, and the new technical discussion focuses on the operation of nuclear power plants above 60 years. (authors)

Life extension of nuclear power plants. World situation and the USA case

Energy Technology Data Exchange (ETDEWEB)

Leon, Pablo T.; Cuesta, Loreto; Serra, Eduardo; Yaguee, Luis [Endesa. C/ Ribera del Loira, No.60, 28042 Madrid (Spain)

2010-07-01

Life extension of Nuclear Power Plants above 40 years of operation is an important issue in many countries. The Kyoto limits for CO{sub 2} emissions, the security of supply, the costs and predictability of renewable energy, etc., are putting nuclear energy in the agenda of many countries all around the world. The delay, due to the economic crisis, of the new nuclear projects in many countries, push governments to continue operation of nuclear plants above the 40 years design life. This is the case in the USA, where 59 units have obtained the extension of operation license from 40 to 60 years, and currently have 19 units are in the reviewing process. The life extension of these plants permits savings in CO{sub 2} emissions and in the consumption of additional amounts of fossil fuels. In this paper, the position of the different nuclear countries about the Extension of Life will be reviewed, with a special emphasis on the situation in the USA. In this last case, the NRC approach for operation licenses above 40 years will be explained, and actions taken by nuclear companies in the country will be reviewed. In this country, the debate about life extension over 40 years has been surpassed, and the new technical discussion focuses on the operation of nuclear power plants above 60 years. (authors)

France energy situation

International Nuclear Information System (INIS)

1991-01-01

The monthly (May 1991) energy situation analysis in France is presented: the energy consumption rise is lowered and especially, oil imports have fallen from -3.1 pc; natural gas imports and domestic electric power production have risen. The energy import dependence rate have very slightly risen, around 50 pc. Diagrams for 1989, 1990, 1991 are presented [fr

Percussive Augmenter of Rotary Drills for Operating as a Rotary-Hammer Drill

Science.gov (United States)

Aldrich, Jack Barron (Inventor); Bar-Cohen, Yoseph (Inventor); Sherrit, Stewart (Inventor); Badescu, Mircea (Inventor); Bao, Xiaoqi (Inventor); Scott, James Samson (Inventor)

2014-01-01

A percussive augmenter bit includes a connection shaft for mounting the bit onto a rotary drill. In a first modality, an actuator percussively drives the bit, and an electric slip-ring provides power to the actuator while being rotated by the drill. Hammering action from the actuator and rotation from the drill are applied directly to material being drilled. In a second modality, a percussive augmenter includes an actuator that operates as a hammering mechanism that drives a free mass into the bit creating stress pulses that fracture material that is in contact with the bit.

Augmented Mirror: Interactive Augmented Reality System Based on Kinect

OpenAIRE

Vera , Lucía; Gimeno , Jesús; Coma , Inmaculada; Fernández , Marcos

2011-01-01

Part 1: Long and Short Papers; International audience; In this paper we present a virtual character controlled by an actor in real time, who talks with an audience through an augmented mirror. The application, which integrates video images, the avatar and other virtual objects within an Augmented Reality system, has been implemented using a mixture of technologies: two kinect systems for motion capture, depth map and real images, a gyroscope to detect head movements, and control algorithms to...

Augmented reality in neurosurgery.

Science.gov (United States)

Tagaytayan, Raniel; Kelemen, Arpad; Sik-Lanyi, Cecilia

2018-04-01

Neurosurgery is a medical specialty that relies heavily on imaging. The use of computed tomography and magnetic resonance images during preoperative planning and intraoperative surgical navigation is vital to the success of the surgery and positive patient outcome. Augmented reality application in neurosurgery has the potential to revolutionize and change the way neurosurgeons plan and perform surgical procedures in the future. Augmented reality technology is currently commercially available for neurosurgery for simulation and training. However, the use of augmented reality in the clinical setting is still in its infancy. Researchers are now testing augmented reality system prototypes to determine and address the barriers and limitations of the technology before it can be widely accepted and used in the clinical setting.

AR DOC: Augmented reality documentaries

DEFF Research Database (Denmark)

Vistisen, Peter

2014-01-01

Augmented Reality Documentaries (AR DOC) er et ’lille’ Shareplay projekt (ansøgte midler augmented reality cross media løsninger, til at skabe engagerende publikumsformidling...... indenfor oplevelsesindustrien. Projektet har genereret ny viden omkring, hvordan fysisk og digital formidling kan understøttes via Augmented Reality som formidlingsformat....

Energy situation, January 2006

International Nuclear Information System (INIS)

2006-03-01

The monthly energy situation analysis in France, at January 2006, is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Energy situation november 2005

International Nuclear Information System (INIS)

2005-12-01

The monthly energy situation analysis in France at November 2005 is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Energy situation July 2004

International Nuclear Information System (INIS)

2004-08-01

The monthly energy situation in France at july 2004 is presented. Statistics are given on energy accounting, imports, exports, energy prices. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Perceived Power Resources in Situations of Collective Action

Directory of Open Access Journals (Sweden)

Insa Theesfeld

2011-02-01

Full Text Available This paper discusses various concepts of power. Its goal is to shed light on a better method for implementing the power concept. The case of Bulgaria’s water user associations’ failure shows the abuse of power by local actors who fear they will lose their influence and the private benefits that they have enjoyed under the former system. The paper provides an empirical study of power resources verified by actors’ perceptions rather than having resource endowments quantified. It also illustrates the contrast between empirically revealed perceived power resources in a local context and their theoretical examination in the distributional theory of institutional change. Studies that set power resources in relation to one another are scarce. Therefore, in this study an innovative, interactive method is used that leads to a ranking of perceived power resources, which is robust against the impact of belonging to different territorial, social, and agricultural producer groups: 1 unrestricted access to information, 2 personal relationships, 3 trustworthiness, 4 cash resources for bribing, 5 menace, and 6 physical power and violence. The implication of this gradation of power resources on collective action solutions addresses complementary measures to disseminate information and compensation measures for those who fear losing their benefits and may therefore oppose the new institutions.

Simulation-based evaluation of an in-vehicle smart situation awareness enhancement system.

Science.gov (United States)

Gregoriades, Andreas; Sutcliffe, Alistair

2018-07-01

Situation awareness (SA) constitutes a critical factor in road safety, strongly related to accidents. This paper describes the evaluation of a proposed SA enhancement system (SAES) that exploits augmented reality through a head-up display (HUD). Two SAES designs were evaluation (information rich vs. minimal information) using a custom-made simulator and the Situation Awareness Global Assessment Technique with performance and EEG measures. The paper describes the process of assessing the SA of drivers using the SAES, through a series of experiments with participants in a Cave Automatic Virtual Environment. The effectiveness of the SAES was tested in a within-group research design. The results showed that the information rich (radar-style display) was superior to the minimal (arrow hazard indicator) design and that both SAES improved drivers' SA and performance compared to the control (no HUD) design. Practitioner Summary: Even though driver situation awareness is considered as one of the leading causes of road accidents, little has been done to enhance it. The current study demonstrates the positive effect of a proposed situation awareness enhancement system on driver situation awareness, through an experiment using virtual prototyping in a simulator.

Situation and perspective of the decommissioning of nuclear power plants in Germany

International Nuclear Information System (INIS)

Kuroda, Yuji

2012-01-01

After the Fukushima Daiichi nuclear power plant accident that occurred in 2011, Germany has decided to go back to the phasing out of nuclear energy, with eight reactors shut down. In accordance with this, the number of operating nuclear plants has reduced to 9 from 17. On the other hand, the number of closed reactors is now 27, and the country has become the world's third largest country after the United Kingdom and the United States in the decommissioning field. In this paper, it is described the current situation and perspectives of the decommissioning in Germany, with the history of phasing out of nuclear energy. At first, the basic framework of regulatory regime and funding system are introduced. Then, experience of operations at decommissioning plants and status of radiation waste management are explained. Although the work on decommissioning is steadily proceeding in the country, establishing of final repository of high level waste is still remaining as the most important issue. (author)

Crime Scenes as Augmented Reality

DEFF Research Database (Denmark)

Sandvik, Kjetil

2010-01-01

Using the concept of augmented reality, this article will investigate how places in various ways have become augmented by means of different mediatization strategies. Augmentation of reality implies an enhancement of the places' emotional character: a certain mood, atmosphere or narrative surplus......, physical damage: they are all readable and interpretable signs. As augmented reality the crime scene carries a narrative which at first is hidden and must be revealed. Due to the process of investigation and the detective's ability to reason and deduce, the crime scene as place is reconstructed as virtual...

Solar Power Augmented Electrolysis Module for Energy Storage

Data.gov (United States)

National Aeronautics and Space Administration — Integrating solar photovoltaic power with regenerative fuel cell systems for energy storage can often be very complex and costly. It usually requires complex power...

Applied Operations Research: Augmented Reality in an Industrial Environment

Science.gov (United States)

Cole, Stuart K.

2015-01-01

Augmented reality is the application of computer generated data or graphics onto a real world view. Its use provides the operator additional information or a heightened situational awareness. While advancements have been made in automation and diagnostics of high value critical equipment to improve readiness, reliability and maintenance, the need for assisting and support to Operations and Maintenance staff persists. AR can improve the human machine interface where computer capabilities maximize the human experience and analysis capabilities. NASA operates multiple facilities with complex ground based HVCE in support of national aerodynamics and space exploration, and the need exists to improve operational support and close a gap related to capability sustainment where key and experienced staff consistently rotate work assignments and reach their expiration of term of service. The initiation of an AR capability to augment and improve human abilities and training experience in the industrial environment requires planning and establishment of a goal and objectives for the systems and specific applications. This paper explored use of AR in support of Operation staff in real time operation of HVCE and its maintenance. The results identified include identification of specific goal and objectives, challenges related to availability and computer system infrastructure.

Are gender differences in upper-body power generated by elite cross-country skiers augmented by increasing the intensity of exercise?

Science.gov (United States)

Hegge, Ann Magdalen; Myhre, Kenneth; Welde, Boye; Holmberg, Hans-Christer; Sandbakk, Øyvind

2015-01-01

In the current study, we evaluated the impact of exercise intensity on gender differences in upper-body poling among cross-country skiers, as well as the associated differences in aerobic capacity, maximal strength, body composition, technique and extent of training. Eight male and eight female elite skiers, gender-matched for level of performance by FIS points, carried out a 4-min submaximal, and a 3-min and 30-sec maximal all-out test of isolated upper-body double poling on a Concept2 ski ergometer. Maximal upper-body power and strength (1RM) were determined with a pull-down exercise. In addition, body composition was assessed with a DXA scan and training during the previous six months quantified from diaries. Relative to the corresponding female values (defined as 100%), the power output produced by the men was 88%, 95% and 108% higher during the submaximal, 3-min and 30-sec tests, respectively, and peak power in the pull-down strength exercise was 118% higher (all Pgender differences in upper-body power among cross-country skiers augmented as the intensity of exercise increased. The gender differences observed here are greater than those reported previously for both lower- and whole-body sports and coincided with greater peak aerobic capacity and maximal upper-body strength, relatively more muscle mass in the upper-body, and more extensive training of upper-body strength and endurance among the male skiers.

Energy situation November 2006

International Nuclear Information System (INIS)

2006-12-01

The monthly energy situation in France, at November 2006, is presented. Statistics are given for the energy expenses, consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Magnetohydrodynamic Augmented Propulsion Experiment

Science.gov (United States)

Litchford, Ron J.; Cole, John; Lineberry, John; Chapman, Jim; Schmidt, Harold; Cook, Stephen (Technical Monitor)

2002-01-01

A fundamental obstacle to routine space access is the specific energy limitations associated with chemical fuels. In the case of vertical take-off, the high thrust needed for vertical liftoff and acceleration to orbit translates into power levels in the 10 GW range. Furthermore, useful payload mass fractions are possible only if the exhaust particle energy (i.e., exhaust velocity) is much greater than that available with traditional chemical propulsion. The electronic binding energy released by the best chemical reactions (e.g., LOX/LH2 for example, is less than 2 eV per product molecule (approx. 1.8 eV per H2O molecule), which translates into particle velocities less than 5 km/s. Useful payload fractions, however, will require exhaust velocities exceeding 15 km/s (i.e., particle energies greater than 20 eV). As an added challenge, the envisioned hypothetical RLV (reusable launch vehicle) should accomplish these amazing performance feats while providing relatively low acceleration levels to orbit (2-3g maximum). From such fundamental considerations, it is painfully obvious that planned and current RLV solutions based on chemical fuels alone represent only a temporary solution and can only result in minor gains, at best. What is truly needed is a revolutionary approach that will dramatically reduce the amount of fuel and size of the launch vehicle. This implies the need for new compact high-power energy sources as well as advanced accelerator technologies for increasing engine exhaust velocity. Electromagnetic acceleration techniques are of immense interest since they can be used to circumvent the thermal limits associated with conventional propulsion systems. This paper describes the Magnetohydrodynamic Augmented Propulsion Experiment (MAPX) being undertaken at NASA Marshall Space Flight Center (MSFC). In this experiment, a 1-MW arc heater is being used as a feeder for a 1-MW magnetohydrodynamic (MHD) accelerator. The purpose of the experiment is to demonstrate

Glucocorticoid augmentation of prolonged exposure therapy: rationale and case report

Directory of Open Access Journals (Sweden)

Laura Pratchett

2010-12-01

Full Text Available Rationale: Prolonged exposure (PE therapy has been found to reduce symptoms of posttraumatic stress disorder (PTSD; however, it is difficult for many patients to engage fully in the obligatory retelling of their traumatic experiences. This problem is compounded by the fact that habituation and cognitive restructuring – the main mechanisms through which PE is hypothesized to work – are not instantaneous processes, and often require several weeks before the distress associated with imaginal exposure abates. Case reports: Two cases are described that respectively illustrate the use of hydrocortisone and placebo, in combination with PE, for the treatment of combat-related PTSD. Based on known effects of glucocorticoids on learning and memory performance, we hypothesized that augmentation with hydrocortisone would improve the therapeutic effects of PE by hastening “new” learning and facilitating decreases in the emotional impact of fear memories during the course of treatment. The veteran receiving hydrocortisone augmentation of PE displayed an accelerated and ultimately greater decline in PTSD symptoms than the veteran receiving placebo. Conclusions: While no general conclusion can be derived from comparison of two patients, the findings are consistent with the rationale for augmentation. These case reports support the potential for an appropriately designed and powered clinical trial to examine the efficacy of glucocorticoids in augmenting the effects of psychotherapy for PTSD.

Augmenting performance feedback does not affect 4 km cycling time-trials in the heat.

Science.gov (United States)

Waldron, Mark; Villerius, Vincent; Murphy, Aron

2015-01-01

We compared the effects of (1) accurate and (2) surreptitiously augmented performance feedback on power output and physiological responses to a 4000 m time-trial in the heat. Nine cyclists completed a baseline (BaseL) 4000 m time-trial in ambient temperatures of 30°C, followed by two further 4000 m time-trials at the same temperature, randomly assigning the participants to an accurate (ACC; accurate feedback of baseline) or deceived (DEC; 2% increase above baseline) feedback group. The total power output (PO) and aerobic (Paer) and anaerobic (Pan) contributions were determined at 0.4 km stages during the time-trials, alongside measurements of rectal (Trec) and skin (Tskin) temperatures. There were no differences (P > 0.05) in any of the variables between BaseL, ACC and DEC, despite increases (P 0.05) between feedback condition and time-trial stage. Providing surreptitiously augmented performance feedback to well-trained cyclists did not alter their performance or physiological responses to a 4000 m time-trial in a hot environment. The assumed influence of augmented performance feedback was nullified in the heat, perhaps reflecting a central down-regulation of exercise intensity in response to an increased body temperature.

Occupational safety in the nuclear power plant. The contribution of sociology to the development of a communication tool for the elimination of hazardous situations

International Nuclear Information System (INIS)

Zedler, Christien; Huber, Veit

2012-01-01

Nuclear power plant companies make efforts to enhance the operational safety in the plant. Despite a variety of measures the number of accidents at work is still too high, esp. for external personnel. Social psychological considerations were used to develop communication tools for the elimination of hazardous situations, for instance by safety dialogues between employees. The observation of hazardous situations should trigger communication and discussion on the risk of the specific situation. In the contribution practical experiences and recommendations for the realization of a safety dialogue culture in the NPP Grafenrheinfeld are summarized and illustrated by examples.

Identifiability of Additive, Time-Varying Actuator and Sensor Faults by State Augmentation

Science.gov (United States)

Upchurch, Jason M.; Gonzalez, Oscar R.; Joshi, Suresh M.

2014-01-01

Recent work has provided a set of necessary and sucient conditions for identifiability of additive step faults (e.g., lock-in-place actuator faults, constant bias in the sensors) using state augmentation. This paper extends these results to an important class of faults which may affect linear, time-invariant systems. In particular, the faults under consideration are those which vary with time and affect the system dynamics additively. Such faults may manifest themselves in aircraft as, for example, control surface oscillations, control surface runaway, and sensor drift. The set of necessary and sucient conditions presented in this paper are general, and apply when a class of time-varying faults affects arbitrary combinations of actuators and sensors. The results in the main theorems are illustrated by two case studies, which provide some insight into how the conditions may be used to check the theoretical identifiability of fault configurations of interest for a given system. It is shown that while state augmentation can be used to identify certain fault configurations, other fault configurations are theoretically impossible to identify using state augmentation, giving practitioners valuable insight into such situations. That is, the limitations of state augmentation for a given system and configuration of faults are made explicit. Another limitation of model-based methods is that there can be large numbers of fault configurations, thus making identification of all possible configurations impractical. However, the theoretical identifiability of known, credible fault configurations can be tested using the theorems presented in this paper, which can then assist the efforts of fault identification practitioners.

Augmented reality: a review.

Science.gov (United States)

Berryman, Donna R

2012-01-01

Augmented reality is a technology that overlays digital information on objects or places in the real world for the purpose of enhancing the user experience. It is not virtual reality, that is, the technology that creates a totally digital or computer created environment. Augmented reality, with its ability to combine reality and digital information, is being studied and implemented in medicine, marketing, museums, fashion, and numerous other areas. This article presents an overview of augmented reality, discussing what it is, how it works, its current implementations, and its potential impact on libraries.

Nuclear power situation in Finland

Energy Technology Data Exchange (ETDEWEB)

Miettinen, J K

1976-01-01

Finland plans to have its future energy policy as well-balanced and economical as possible. Dependence on oil has to be reduced and savings have to be achieved wherever possible. Some growth of energy demand will be inevitable, and most of this growth has to be nuclear. Practically all hydropower that can be reasonably exploited is being utilized already. Finland has an abundance of peat, but it can be economically used only as a regional source of energy. This leaves, as the only real alternatives for the coming decennia, coal and fission; of the two, fission is evidently the better choice. Although other forms of energy such as fusion, solar, tidal, and wind energy have to be studied as longer-range alternatives. Four nuclear power plants are presently under construction in Finland and at least a few additional ones will evidently be built before 1990. Several of them will probably be of the combined district heat and electricity-producing type. The planning of nuclear energy has recently become complicated due to financing difficulties, uncertainties regarding long-range fuel services, and public opposition. The latter is partly caused by lack of information, partly by fears of a change of life-style in communities near the planned power plant sites. (From Conclusions)

Yugoslavia - energy situation 1986

International Nuclear Information System (INIS)

1988-01-01

The energy situation of Yugoslavia is reviewed on the basis of relevant data. Data on the country's national and international energy policy are followed by an outline of trends in energy sources and electric power generation. Key figures are presented on the country's external trade and balance of payments. (UA) [de

France - energy situation 1986

International Nuclear Information System (INIS)

1988-01-01

The energy situation of France is reviewed on the basis of relevant data. Data on the country's national and international energy policy are followed by an outline of trends in energy sources and electric power generation. Key figures are presented on the country's external trade and balance of payments. (UA) [de

Sweden - energy situation 1986

International Nuclear Information System (INIS)

1988-01-01

The energy situation of Sweden is reviewed on the basis of relevant data. Data on the country's national and international energy policy are followed by an outline of trends in energy sources and electric power generation. Key figures are presented on the country's external trade and balance of payments. (UA) [de

China - energy situation 1986

International Nuclear Information System (INIS)

1988-01-01

The energy situation of China is reviewed on the basis of relevant data. Data on the country's national and international energy policy are followed by an outline of trends in energy sources and electric power generation. Key figures are presented on the country's external trade and balance of payments. (UA) [de

Venezuela - energy situation 1982

Energy Technology Data Exchange (ETDEWEB)

1984-01-01

The energy situation of Venezuela is reviewed on the basis of some relevant data. Its energy policy is commented on, and developments in electric power generation are described as well as the trends observed for the various energy sources. Figures are given on external trade and on the balance of payments.

Preliminary study for a drinking-water hydro-power station in Raron, Switzerland; Vorstudie Trinkwasserkraftwerk 'Moos', Gemeinde Raron VS

Energy Technology Data Exchange (ETDEWEB)

Loretan, F. [Schneider - Bregy und Partner AG, Raron, (Switzerland); Hiller, B. [Ryser Ingenieure AG, Berne (Switzerland)

2006-07-01

This final report for the Small Hydro Programme of the Swiss Federal Office of Energy (SFOE) presents the concept for the augmentation of an existing drinking-water-powered small hydro-electric project with an additional installation that is to use the overflow-water of a reservoir to drive a 75 kW Pelton turbine. The paper discusses the hydraulic situation and describes the installations proposed. Energy production and the costs involved are listed and commented on. Water in drinking-water quality from the Loetschberg railway tunnel is also to be used in the system.

Flow interaction of diffuser augmented wind turbines

Science.gov (United States)

Göltenbott, U.; Ohya, Y.; Yoshida, S.; Jamieson, P.

2016-09-01

Up-scaling of wind turbines has been a major trend in order to reduce the cost of energy generation from the wind. Recent studies however show that for a given technology, the cost always rises with upscaling, notably due to the increased mass of the system. To reach capacities beyond 10 MW, multi-rotor systems (MRS) have promising advantages. On the other hand, diffuser augmented wind turbines (DAWTs) can significantly increase the performance of the rotor. Up to now, diffuser augmentation has only been applied to single small wind turbines. In the present research, DAWTs are used in a multi-rotor system. In wind tunnel experiments, the aerodynamics of two and three DAWTs, spaced in close vicinity in the same plane normal to a uniform flow, have been analysed. Power increases of up to 5% and 9% for the two and three rotor configurations are respectively achieved in comparison to a stand-alone turbine. The physical dynamics of the flows are analysed on the basis of the results obtained with a stand-alone turbine.

Use of Augmented Reality in Education

OpenAIRE

Jeřábek, Tomáš

2014-01-01

This thesis deals with phenomena of augmented reality in context of didactics. The thesis aims to define augmented reality in conceptual and content area and focuses on augmented reality in the structure of educational tools and identification of its functions and use from the didactical standpoint. The thesis characterizes augmented reality as a specific technological-perceptual concept and establishes a system of perceptual, technological and resulting aspects that reflect important paramet...

Public Interest in Breast Augmentation: Analysis and Implications of Google Trends Data.

Science.gov (United States)

Wilson, Stelios C; Daar, David A; Sinno, Sammy; Levine, Steven M

2018-06-01

Breast augmentation is the most common aesthetic surgery performed in the United States (US) annually. Analysis of Google Trends (GT) data may give plastic surgeons useful information regarding worldwide, national, and regional interest for breast augmentation and other commonly performed aesthetic surgeries. Data were collected using GT for breast augmentation and associated search terms from January 2004 to May 2017. Case volume was obtained from the American Society of Plastic Surgeons (ASPS) annual reports for the calendar year 2005-2016. Trend analysis showed that total search term volume for breast augmentation and breast implants gradually decreased worldwide and in the US over the study period while the search term boob job slowly increased. Univariate linear regression demonstrated a statistically significant positive correlation between average annual Google search volume of "breast augmentation" and the annual volume of breast augmentations performed in the US according to ASPS data (R 2  = 0.44, p = 0.018). There was no significant correlation between national volume of breast augmentations performed and search volume using the terms "breast implants" or "boob job" over time (p = 0.84 and p = 0.07, respectively). In addition, there appears to be country specific variation in interest based on time of year and peaks in interest following specific policies. To our knowledge, this is the first and only analysis of GT data in the plastic surgery literature to date. To that end, this study highlights this large and potentially powerful data set for plastic surgeons both in the US and around the world. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Place and Situated Deliberation in Participatory Planning – A Research Proposal

DEFF Research Database (Denmark)

Korn, Matthias

2011-01-01

for everyone and everywhere through a mobile augmented reality application that visualizes future, planned buildings on capable mobile phones. I conclude with the central questions and problems for future research that focuses on place and situated deliberation.......Within the domain of participatory urban planning, this position paper argues for a focus on the notion of place in the design of mobile and/or ubiquitous systems that are used in deliberation processes with central spatial references. I discuss (1) leveraging properties of place as a resource...

Bayesian Alternation During Tactile Augmentation

Directory of Open Access Journals (Sweden)

Caspar Mathias Goeke

2016-10-01

Full Text Available A large number of studies suggest that the integration of multisensory signals by humans is well described by Bayesian principles. However, there are very few reports about cue combination between a native and an augmented sense. In particular, we asked the question whether adult participants are able to integrate an augmented sensory cue with existing native sensory information. Hence for the purpose of this study we build a tactile augmentation device. Consequently, we compared different hypotheses of how untrained adult participants combine information from a native and an augmented sense. In a two-interval forced choice (2 IFC task, while subjects were blindfolded and seated on a rotating platform, our sensory augmentation device translated information on whole body yaw rotation to tactile stimulation. Three conditions were realized: tactile stimulation only (augmented condition, rotation only (native condition, and both augmented and native information (bimodal condition. Participants had to choose one out of two consecutive rotations with higher angular rotation. For the analysis, we fitted the participants’ responses with a probit model and calculated the just notable difference (JND. Then we compared several models for predicting bimodal from unimodal responses. An objective Bayesian alternation model yielded a better prediction (χred2 = 1.67 than the Bayesian integration model (χred2= 4.34. Slightly higher accuracy showed a non-Bayesian winner takes all model (χred2= 1.64, which either used only native or only augmented values per subject for prediction. However the performance of the Bayesian alternation model could be substantially improved (χred2= 1.09 utilizing subjective weights obtained by a questionnaire. As a result, the subjective Bayesian alternation model predicted bimodal performance most accurately among all tested models. These results suggest that information from augmented and existing sensory modalities in

Augmented Reality

DEFF Research Database (Denmark)

Kjærgaard, Hanne Wacher; Kjeldsen, Lars Peter Bech; Rahn, Annette

2015-01-01

This chapter describes the use of iPad-facilitated application of augmented reality in the teaching of highly complex anatomical and physiological subjects in the training of nurses at undergraduate level. The general aim of the project is to investigate the potentials of this application in terms...... of making the complex content and context of these subjects more approachable to the students through the visualization made possible through the use of this technology. A case study is described in this chapter. Issues and factors required for the sustainable use of the mobile-facilitated application...... of augmented reality are discussed....

FMEA and consideration of real work situations for safer design of production systems.

Science.gov (United States)

Lux, Aurélien; Mawo De Bikond, Johann; Etienne, Alain; Quillerou-Grivot, Edwige

2016-12-01

Production equipment designers must ensure the health and safety of future users; in this regard, they augment requirements for standardizing and controlling operator work. This contrasts with the ergonomic view of the activity, which recommends leaving operators leeway (margins for manoeuvre) in performing their task, while safeguarding their health. Following a brief analysis of design practices in the car industry, we detail how the Failure Modes and Effects Analysis (FMEA) approach is implemented in this sector. We then suggest an adaptation that enables designers to consider real work situations. This new protocol, namely, work situation FMEA, allows experience feedback to be used to defend the health standpoint during designer project reviews, which usually only address quality and performance issues. We subsequently illustrate the advantage of this approach using two examples of work situations at car parts manufacturers: the first from the literature and the second from an in-company industrial project.

Affordances in Mobile Augmented Reality Applications

OpenAIRE

Gjøsæter, Tor

2014-01-01

This paper explores the affordances of augmented reality content in a mobile augmented reality application. A user study was conducted by performing a multi-camera video recording of seven think aloud sessions. The think aloud sessions consisted of individual users performing tasks, exploring and experiencing a mobile augmented reality (MAR) application we developed for the iOS platform named ARad. We discuss the instrumental affordances we observed when users interacted with augmented realit...

Consolidating staff augmentation contracts improves teamwork and reduces costs

International Nuclear Information System (INIS)

Townsend, J.; Sibilla, L.; Gregovich, J.W.

1991-01-01

Nuclear power plants have traditionally used multiple contracting firms to provide temporary staff augmentation personnel primarily because of two perceptions: (1) managers believe they have greater access to a higher quality, readily available pool of applicants. (2) using multiple contractors inherently keeps costs down as a result of several competitors submitting resumes for the same position. This paper provides information, based on the experiences of a leading nuclear power plant, that disproves these perceptions. It explains why consolidating several contracts for professional and technical classifications (excluding craft labor and refueling personnel) and competitively bidding and awarding the contract to a single contracting firm promotes teamwork and reduces costs

Dynamic augmentation restores anterior tibial translation in ACL suture repair: a biomechanical comparison of non-, static and dynamic augmentation techniques.

Science.gov (United States)

Hoogeslag, Roy A G; Brouwer, Reinoud W; Huis In 't Veld, Rianne; Stephen, Joanna M; Amis, Andrew A

2018-02-03

There is a lack of objective evidence investigating how previous non-augmented ACL suture repair techniques and contemporary augmentation techniques in ACL suture repair restrain anterior tibial translation (ATT) across the arc of flexion, and after cyclic loading of the knee. The purpose of this work was to test the null hypotheses that there would be no statistically significant difference in ATT after non-, static- and dynamic-augmented ACL suture repair, and they will not restore ATT to normal values across the arc of flexion of the knee after cyclic loading. Eleven human cadaveric knees were mounted in a test rig, and knee kinematics from 0° to 90° of flexion were recorded by use of an optical tracking system. Measurements were recorded without load and with 89-N tibial anterior force. The knees were tested in the following states: ACL-intact, ACL-deficient, non-augmented suture repair, static tape augmentation and dynamic augmentation after 10 and 300 loading cycles. Only static tape augmentation and dynamic augmentation restored ATT to values similar to the ACL-intact state directly postoperation, and maintained this after cyclic loading. However, contrary to dynamic augmentation, the ATT after static tape augmentation failed to remain statistically less than for the ACL-deficient state after cyclic loading. Moreover, after cyclic loading, ATT was significantly less with dynamic augmentation when compared to static tape augmentation. In contrast to non-augmented ACL suture repair and static tape augmentation, only dynamic augmentation resulted in restoration of ATT values similar to the ACL-intact knee and decreased ATT values when compared to the ACL-deficient knee immediately post-operation and also after cyclic loading, across the arc of flexion, thus allowing the null hypotheses to be rejected. This may assist healing of the ruptured ACL. Therefore, this study would support further clinical evaluation of dynamic augmentation of ACL repair.

Methods to enhance blanket power density in low-power fusion devices

International Nuclear Information System (INIS)

Hsu, P.Y.; Miller, L.G.; Bohn, T.S.; Deis, G.A.; Longhurst, G.R.; Masson, L.S.; Wessol, D.E.; Abdou, M.A.

1982-06-01

The overall objective of this task is to investigate the extent to which the power density in the FED breeder blanket test modules can be enhanced by artificial means. Assuming a viable approach can be developed, it will allow testing of advanced reactor blanket modules on INTOR at representative conditions. The tentative approach adopted for this task consists of three parts. First, the requirements for augmented heating of the test module are outlined for different applications of interest. Second, methods are identified which have potential for augmenting the heating power in a test module, and this list of methods is narrowed to those which appear to be most useful. Finally, these methods are examined in more detail to determine the practical benefits of employing each

Feature Augmentation via Nonparametrics and Selection (FANS) in High-Dimensional Classification.

Science.gov (United States)

Fan, Jianqing; Feng, Yang; Jiang, Jiancheng; Tong, Xin

We propose a high dimensional classification method that involves nonparametric feature augmentation. Knowing that marginal density ratios are the most powerful univariate classifiers, we use the ratio estimates to transform the original feature measurements. Subsequently, penalized logistic regression is invoked, taking as input the newly transformed or augmented features. This procedure trains models equipped with local complexity and global simplicity, thereby avoiding the curse of dimensionality while creating a flexible nonlinear decision boundary. The resulting method is called Feature Augmentation via Nonparametrics and Selection (FANS). We motivate FANS by generalizing the Naive Bayes model, writing the log ratio of joint densities as a linear combination of those of marginal densities. It is related to generalized additive models, but has better interpretability and computability. Risk bounds are developed for FANS. In numerical analysis, FANS is compared with competing methods, so as to provide a guideline on its best application domain. Real data analysis demonstrates that FANS performs very competitively on benchmark email spam and gene expression data sets. Moreover, FANS is implemented by an extremely fast algorithm through parallel computing.

Intelligence Context Aware Mobile Navigation using Augmented Reality Technology

Directory of Open Access Journals (Sweden)

Ahmad Hoirul Basori

2018-04-01

Full Text Available Most of the technologies of today’s world, which are enriched with various powerful features and amazing quality characteristics, enables software developers to come up with best possible software solutions, no matter what the context of the particular issue. Technologies such as Augmented Reality (AR, is utilized almost every kind of fields in today’s society. As computers become more advanced through mobile devices and wearable technology, augmented reality will become a seamless experience that is a part of our everyday lives. In the context of this work, an Intelligence mobile navigation application for the King Abdul Aziz University Rabigh is developed enabling the user to find specific locations on campus and offers the ability to explore the campus environment via AR. Furthermore, the system, Mobile Campus Navigation with Augmented Reality application is capable of giving guidance in outdoor location navigating and retrieving details of campus officials and lecturers. With the proposed system, it is expected to serve as a useful and informative navigate helper for both students of King Abdul Aziz University and for the visitors, at outdoor locations and to use as an application to check officials and lecturer availability and retrieve detail about them when they are not available at the office at any time.

2-Dimensional changes of the soft tissue profile of augmented and non-augmented human extraction sockets: a randomized pilot study.

Science.gov (United States)

Flügge, Tabea; Nelson, Katja; Nack, Claudia; Stricker, Andres; Nahles, Susanne

2015-04-01

This study identified the soft tissue changes of the alveolar ridge at different time points within 12 weeks after tooth extraction with and without socket augmentation. In 38 patients with single tooth extractions, 40 sockets were augmented and 39 extraction sockets were not augmented. At 2, 4, 6, 8 and 12 weeks impressions were taken and casts digitized with a laser scanner. The horizontal and vertical changes were compared between augmented and non-augmented sites. A p-value sockets were between 0.4 mm (2 weeks) and 0.8 mm (12 weeks). In non-augmented sockets changes of 0.7 mm (2 weeks) and of 1.0 mm (12 weeks) were demonstrated. The mean values differed significantly between the buccal and oral region (p sockets showed less resorption within 4 weeks after extraction compared to non-augmented sockets. Non-augmented sockets showed a continuous dimensional loss with a great variation over 12 weeks whereas augmented sockets had the highest degree of resorption between 4 and 6 weeks. At 12 weeks a comparable resorption in augmented and non-augmented sockets was observed. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Augmented assessment as a means to augmented reality.

Science.gov (United States)

Bergeron, Bryan

2006-01-01

Rigorous scientific assessment of educational technologies typically lags behind the availability of the technologies by years because of the lack of validated instruments and benchmarks. Even when the appropriate assessment instruments are available, they may not be applied because of time and monetary constraints. Work in augmented reality, instrumented mannequins, serious gaming, and similar promising educational technologies that haven't undergone timely, rigorous evaluation, highlights the need for assessment methodologies that address the limitations of traditional approaches. The most promising augmented assessment solutions incorporate elements of rapid prototyping used in the software industry, simulation-based assessment techniques modeled after methods used in bioinformatics, and object-oriented analysis methods borrowed from object oriented programming.

Application of Virtual, Augmented, and Mixed Reality to Urology

OpenAIRE

Hamacher, Alaric; Kim, Su Jin; Cho, Sung Tae; Pardeshi, Sunil; Lee, Seung Hyun; Eun, Sung-Jong; Whangbo, Taeg Keun

2016-01-01

Recent developments in virtual, augmented, and mixed reality have introduced a considerable number of new devices into the consumer market. This momentum is also affecting the medical and health care sector. Although many of the theoretical and practical foundations of virtual reality (VR) were already researched and experienced in the 1980s, the vastly improved features of displays, sensors, interactivity, and computing power currently available in devices offer a new field of applications t...

Informing Architecture and Urban Modeling with Real-world Data on 3D Tangible Interfaces and Augmented Displays

DEFF Research Database (Denmark)

Banke, Tore; Salim, Flora; Jaworski, Przemyslaw

2011-01-01

The proliferation of online and digital data in our world yields unprecedented opportunities for connecting physical and digital parametric models with live data input and feedback. Tangible interfaces and augmented displays provide theatrical settings for designers to visualize real-world data a...... detection, and multi-touch techniques, multidimensional tangible interfaces and augmented displays presented in this paper demonstrate a powerful new approach for designing and interacting with physical models, materials, and environmental data....

Augmented Reality Using JavaScript

OpenAIRE

Hailemichael, Aida

2013-01-01

The project goal was to provide a mobile application, for a venue called Kulturhuset Karelia which is located in Tammisaari Finland. In this paper, the concept of Augmented Reality technology is briefly discussed along with the mobile application for the venue. The utilisation of JavaScript for creating Augmented reality content for mobile Augmented reality browser is also demonstrated. The application was created by using Architecht API which is Jacvascript library based on the Wikitude...

Augmented Reality for Multi-disciplinary Collaboration

OpenAIRE

Wang, Xiangyu; Rui,

2010-01-01

This chapter presents a framework for multi-disciplinary collaboration. Tangible Augmented Reality has been raised as one of suitable systems for design collaboration. Furthermore, it emphasizes the advantages of Tangible Augmented Reality to illustrate the needs for integrating the Tangible User Interfaces and Augmented Reality Systems.

USSR - energy situation 1986

International Nuclear Information System (INIS)

1988-01-01

The energy situation of the USSR is reviewed on the basis of relevant data. Data on the country's national energy policy are followed by an outline of trends in energy sources and electric power generation. Key figures are presented on the country's external trade and balance of payments. Some remarks are made on international energy policy. (UA) [de

Special weather situations in Copenhagen-Oeresund area

International Nuclear Information System (INIS)

1982-01-01

The Danish Environmental Agency has appointed a committee for studies of weather situations of Copenhgen and Oeresund strait regions in order to evaluate consequences of a potential nuclear accident at Barebaeck Power Plant in Sweden. The committee has investigated weather situations with fumigation, local wind systems at large urban areas and on the land-water boundary and precipitation role in plume transport over Oereseund. (EG)

Performance of a self-augmented railgun

International Nuclear Information System (INIS)

Burton, R.L.; Witherspoon, F.D.; Goldstein, S.A.

1991-01-01

The accelerating force of a railgun 1/2L'I 2 a can be increased by augmenting the self-induced magnetic field created by the armature current. Augmentation fields can be produced by external current coils or, as is done here, by shorting the railgun muzzle, and using the gun rails as the augmentation coil. Experimental results are presented for a 3.6-m railgun operated in this self-augmented mode, and effective inductance gradients are achieved which are as much as 9.3 times that of the unaugmented gun. A circuit model is presented which explains features of the measured shunt current and voltage. It is concluded that self-augmentation is an effective way to reduce ohmic heating in the armature of a railgun

INFORMATION VIA AUGMENTED

OpenAIRE

Tetteh, Sampson

2015-01-01

The vast majority of mobile technology today has developed over the past dec-ades. The thirst for information and communication has brought about high data transfer speed on modern mobile handset devices. This makes it possible for Augmented Reality to be used on mobile phones. Vaasa University of Applied Science, Technobothnia science resource center and Lumivaara Museum saw the importance of information and decided to embark on a pilot project where Augmented Reality will not be only us...

Nuclear energy : Present situation and future prospects

International Nuclear Information System (INIS)

Gray, J.E.

1986-01-01

In 1953, President Eisenhower announced the U.S. ''Atoms for Peace'' program. After slightly more than 30 years, there are in operation, under construction or on order more than 400,000 MW of commercial nuclear power generation capacity located in 35 nations, representing a total investment around a trillion U.S. dollars. The situation is noteworthy in terms of the rate of technical development, deployment and transfer, the magnitude of the financial investment, economic benefits, the favorable impact on public health and safety, and the usual and positive character of cooperation among all concerned. The fundamentals of nuclear power generation with regard to economics, safety and environmental impact are likely to favor the increased use of nuclear power. The future prospect of the nuclear power in the U.S. also will be clarified positively. In many ways, U.S. commercial nuclear power continues to benefit from the Navy nuclear propulsion program. The prospect of supply demand situation in the conversion, enrichment and fabrication of uranium fuel is explained. The amount of spent fuel arising in OECD countries and their storage capability up to 2000 are shown, and the storage capability projected is well in excess. (Kako, I.)

Augmented Reality and Mobile Art

Science.gov (United States)

Gwilt, Ian

The combined notions of augmented-reality (AR) and mobile art are based on the amalgamation of a number of enabling technologies including computer imaging, emergent display and tracking systems and the increased computing-power in hand-held devices such as Tablet PCs, smart phones, or personal digital assistants (PDAs) which have been utilized in the making of works of art. There is much published research on the technical aspects of AR and the ongoing work being undertaken in the development of faster more efficient AR systems [1] [2]. In this text I intend to concentrate on how AR and its associated typologies can be applied in the context of new media art practices, with particular reference to its application on hand-held or mobile devices.

Augmented Reality Untuk Perabotan Rumah Tangga Berbasis Android

OpenAIRE

Sidabutar, Reza Mahardi

2015-01-01

Describing the shape of a particular object has its own difficulties. For some people it will become increasingly difficult if the object that reflected the unusual shape. The use of Augmented reality (AR) in the selection of household furniture is the solution in the field of visualization objects. AR can afford any engaged included in the marketing of household furnishings in both online and offline sales. A merger between the AR with android has a power on all its own. To do the visualizat...

INTEGRATIVE AUGMENTATION OF STANDARDIZED MANAGEMENT SYSTEMS

Directory of Open Access Journals (Sweden)

Stanislav Karapetrovic

2008-03-01

Full Text Available The development, features and integrating abilities of different international standards related to management systems are discussed. A group of such standards that augment the performance of quality management systems in organizations is specifically focused on. The concept, characteristics and an illustrative example of one augmenting standard, namely ISO 10001, are addressed. Integration of standardized augmenting systems, both by themselves and within the overall management system, is examined. It is argued that, in research and practice alike, integrative augmentation represents the future of standardized quality and other management systems.

AUGMENTATION-RELATED BRAIN PLASTICITY

Directory of Open Access Journals (Sweden)

Giovanni eDi Pino

2014-06-01

Full Text Available Today, the anthropomorphism of the tools and the development of neural interfaces require reconsidering the concept of human-tools interaction in the framework of human augmentation. This review analyzes the plastic process that the brain undergoes when it comes into contact with augmenting artificial sensors and effectors and, on the other hand, the changes that the use of external augmenting devices produces in the brain.Hitherto, few studies investigated the neural correlates of augmentation, but clues on it can be borrowed from logically-related paradigms: sensorimotor training, cognitive enhancement, cross-modal plasticity, sensorimotor functional substitution, use and embodiment of tools.Augmentation modifies function and structure of a number of areas, i.e. primary sensory cortices shape their receptive fields to become sensitive to novel inputs. Motor areas adapt the neuroprosthesis representation firing-rate to refine kinematics. As for normal motor outputs, the learning process recruits motor and premotor cortices and the acquisition of proficiency decreases attentional recruitment, focuses the activity on sensorimotor areas and increases the basal ganglia drive on the cortex. Augmentation deeply relies on the frontoparietal network. In particular, premotor cortex is involved in learning the control of an external effector and owns the tool motor representation, while the intraparietal sulcus extracts its visual features. In these areas, multisensory integration neurons enlarge their receptive fields to embody supernumerary limbs. For operating an anthropomorphic neuroprosthesis, the mirror system is required to understand the meaning of the action, the cerebellum for the formation of its internal model and the insula for its interoception. In conclusion, anthropomorphic sensorized devices can provide the critical sensory afferences to evolve the exploitation of tools through their embodiment, reshaping the body representation and the

Confronting an Augmented Reality

Science.gov (United States)

Munnerley, Danny; Bacon, Matt; Wilson, Anna; Steele, James; Hedberg, John; Fitzgerald, Robert

2012-01-01

How can educators make use of augmented reality technologies and practices to enhance learning and why would we want to embrace such technologies anyway? How can an augmented reality help a learner confront, interpret and ultimately comprehend reality itself ? In this article, we seek to initiate a discussion that focuses on these questions, and…

Advanced Intellect-Augmentation Techniques.

Science.gov (United States)

Engelbart, D. C.

This progress report covers a two-year project which is part of a program that is exploring the value of computer aids in augmenting human intellectual capability. The background and nature of the program, its resources, and the activities it has undertaken are outlined. User experience in applying augmentation tools and techniques to various…

Reasoning about Control Situations in Power Systems

DEFF Research Database (Denmark)

Saleem, Arshad; Lind, Morten

2009-01-01

Introduction of distributed generation, deregulation and distribution of control has brought new challenges for electric power system operation, control and automation. Traditional power system models used in reasoning tasks such as intelligent control are highly dependent on the task purpose. Thus......, a model for intelligent control must represent system features, so that information from measurements can be related to possible system states and to control actions. These general modeling requirements are well understood, but it is, in general, difficult to translate them into a model because...

A Multi-Element Diffuser Augmented Wind Turbine

Directory of Open Access Journals (Sweden)

Søren Hjort

2014-05-01

Full Text Available A new class of diffuser augmented wind turbines (DAWTs is presented. The new diffuser concept exploits aero-dynamic principles for the creation of high-lift airfoil configurations known from the aircraft industry. Combining this with our objective of obtaining a compact power-efficient design has enabled creation of a family of DAWT designs with energy capture potentials which exceed the power efficiency based on the diffuser exit area by 50%. The paper presents the 1D momentum theory governing the DAWTs, and discusses upper limits for power extraction, similar to the Betz limit applicable for bare Horizontal-Axis Wind Turbines (HAWTs. Inviscid axisymmetric panel code calculations are then used to drive the diffuser design towards higher power coefficients. Axisymmetric actuator disk Navier-Stokes calculations reveal the types of stall that inhibit the functionality of the ideal inviscid optimum, leading the design towards the new class of DAWTs. DAWT performance has been differently measured over time, creating confusion. Proper comparison with performance of existing DAWT designs is therefore emphasized. This involves reference to established literature results, and recalculation of earlier DAWT designs in an attempt to project all results onto a common metric.

Novel Augmentation Strategies in Major Depression

DEFF Research Database (Denmark)

Martiny, Klaus

2017-01-01

Hypothesis The hypotheses of all the four included studies share the common idea that it is possible to augment the effect of antidepressant drug treatment by applying different interventions and with each intervention attain a clinically meaningful better effect compared to a control condition...... and randomised to augmentation with either active or placebo matching pindolol tablets. In the PEMF study patients were continued on ongoing medication and randomised to augmentation with active or inactive (sham) 30 minutes daily PEMF treatment on weekdays. In the Chronos study all patients were treated...... The results from the Pindolol study showed that pindolol did not augment the effect of venlafaxine for the whole sample. However, for those patients classified as slow metabolizers, based on their O-desmethylvenlafaxine/venlafaxine ratio (ODV/V), pindolol did augment the antidepressant effect. For patients...

Augmented Reality for Science Education

DEFF Research Database (Denmark)

Brandt, Harald; Nielsen, Birgitte Lund; Georgsen, Marianne

Augmented reality (AR) holds great promise as a learning tool. So far, however, most research has looked at the technology itself – and AR has been used primarily for commercial purposes. As a learning tool, AR supports an inquiry-based approach to science education with a high level of student...... involvement. The AR-sci-project (Augmented Reality for SCIence education) addresses the issue of applying augmented reality in developing innovative science education and enhancing the quality of science teaching and learning....

Nuclear situation in Japan; La situation du nucleaire au Japon

Energy Technology Data Exchange (ETDEWEB)

NONE

2006-07-01

This analysis takes stock on the nuclear situation in Japan. It discusses the ambitious equipment program in collaboration with the France, the destabilization of the japanese nuclear industry following the accidents and the energy policy evolutions. It presents the projects of the japanese nuclear industry: the Monju reactor restart, the Pluthermal project, the reprocessing power plant of Rokkasho Mura, the new reactors, the russian weapons dismantling, the ITER site selection and the buy out of Westinghouse by Toshiba. (A.L.B.)

Ecological interface design for turbine secondary systems in a nuclear power plant : effects on operator situation awareness

International Nuclear Information System (INIS)

Kwok, J.

2007-01-01

Investigations into past accidents at nuclear power generating facilities such as that of Three Mile Island have identified human factors as one of the foremost critical aspects in plant safety. Errors resulting from limitations in human information processing are of particular concern for human-machine interfaces (HMI) in plant control rooms. This project examines the application of Ecological Interface Design (EID) in HMI information displays and the effects on operator situation awareness (SA) for turbine secondary systems based on the Swedish Forsmark 3 boiling-water reactor nuclear power plant. A work domain analysis was performed on the turbine secondary systems yielding part-whole decomposition and abstraction hierarchy models. Information display requirements were subsequently extracted from the models. The resulting EID information displays were implemented in a full-scope simulator and evaluated with six licensed operating crews from the Forsmark 3 plant. Three measures were used to examine SA: self-rated bias, Halden Open Probe Elicitation (HOPE), and Situation Awareness Control Room Inventory (SACRI). The data analysis revealed that operators achieved moderate to good SA; operators unfamiliar with EID information displays were able to develop and maintain comparable levels of SA to operators using traditional forms of single sensor-single indicator (SS-SI) information displays. With sufficient training and experience, operator SA is expected to benefit from the knowledge-based visual elements in the EID information displays. This project was researched in conjunction with the Cognitive Engineering Laboratory at the University of Toronto and the Institute for Energy Technology (IFE) in Halden, Norway. (author)

Augmented Reality on Android

OpenAIRE

Chunghan Li; Chang-Shyh Peng; Daisy F. Sang

2013-01-01

Augmented Reality is an application which combines a live view of real-world environment and computer-generated images. This paper studies and demonstrates an efficient Augmented Reality development in the mobile Android environment with the native Java language and Android SDK. Major components include Barcode Reader, File Loader, Marker Detector, Transform Matrix Generator, and a cloud database.

ARZombie: A Mobile Augmented Reality Game with Multimodal Interaction

Directory of Open Access Journals (Sweden)

Diogo Cordeiro

2015-11-01

Full Text Available Augmented reality games have the power to extend virtual gaming into real world scenarios with real people, while enhancing the senses of the user. This paper describes the AR- Zombie game developed with the aim of studying and developing mobile augmented reality applications, specifically for tablets, using face recognition interaction techniques. The goal of the ARZombie player is to kill zombies that are detected through the display of the device. Instead of using markers as a mean of tracking the zombies, this game incorporates a facial recognition system, which will enhance the user experience by improving the interaction of players with the real world. As the player moves around the environment, the game will display virtual zombies on the screen if the detected faces are recognized as belonging to the class of the zombies. ARZombie was tested with users to evaluate the interaction proposals and its components were evaluated regarding the performance in order to ensure a better gaming experience.

Does a booster intervention augment the preventive effects of an abbreviated version of the coping power program for aggressive children?

Science.gov (United States)

Lochman, John E; Baden, Rachel E; Boxmeyer, Caroline L; Powell, Nicole P; Qu, Lixin; Salekin, Karen L; Windle, Michel

2014-01-01

Booster interventions have been presumed to be important methods for maintaining the effects of evidence-based programs for children with behavioral problems, but there has been remarkably little empirical attention to this assumption. The present study examines the effect of a child-oriented booster preventive intervention with children who had previously received an abbreviated version (24 child sessions, 10 parent sessions) of the Coping Power targeted prevention program. Two hundred and forty-one children (152 boys, 89 girls) were screened as having moderate to high levels of aggressive behavior in 4th grade, then half were randomly assigned to receive the abbreviated Coping Power program in 5th grade, and half of the preventive intervention children were then randomly assigned to a Booster condition in 6th grade. The Booster sessions consisted of brief monthly individual contacts, and were primarily with the children. Five assessments across 4 years were collected from teachers, providing a three-year follow-up for all children who participated in the project. Results indicated that the abbreviated Coping Power program (one-third shorter than the full intervention) had long-term effects in reducing children's externalizing problem behaviors, proactive and reactive aggression, impulsivity traits and callous-unemotional traits. The Booster intervention did not augment these prevention effects. These findings indicate that a briefer and more readily disseminated form of an evidence-based targeted preventive intervention was effective. The findings have potential implications for policy and guidelines about possible intervention length and booster interventions.

Human-Robot Collaboration: A Literature Review and Augmented Reality Approach in Design

Directory of Open Access Journals (Sweden)

Scott A. Green

2008-03-01

Full Text Available NASA's vision for space exploration stresses the cultivation of human-robotic systems. Similar systems are also envisaged for a variety of hazardous earthbound applications such as urban search and rescue. Recent research has pointed out that to reduce human workload, costs, fatigue driven error and risk, intelligent robotic systems will need to be a significant part of mission design. However, little attention has been paid to joint human-robot teams. Making human-robot collaboration natural and efficient is crucial. In particular, grounding, situational awareness, a common frame of reference and spatial referencing are vital in effective communication and collaboration. Augmented Reality (AR, the overlaying of computer graphics onto the real worldview, can provide the necessary means for a human-robotic system to fulfill these requirements for effective collaboration. This article reviews the field of human-robot interaction and augmented reality, investigates the potential avenues for creating natural human-robot collaboration through spatial dialogue utilizing AR and proposes a holistic architectural design for human-robot collaboration.

Human-Robot Collaboration: A Literature Review and Augmented Reality Approach in Design

Directory of Open Access Journals (Sweden)

Scott A. Green

2008-11-01

Full Text Available NASA?s vision for space exploration stresses the cultivation of human-robotic systems. Similar systems are also envisaged for a variety of hazardous earthbound applications such as urban search and rescue. Recent research has pointed out that to reduce human workload, costs, fatigue driven error and risk, intelligent robotic systems will need to be a significant part of mission design. However, little attention has been paid to joint human-robot teams. Making human-robot collaboration natural and efficient is crucial. In particular, grounding, situational awareness, a common frame of reference and spatial referencing are vital in effective communication and collaboration. Augmented Reality (AR, the overlaying of computer graphics onto the real worldview, can provide the necessary means for a human-robotic system to fulfill these requirements for effective collaboration. This article reviews the field of human-robot interaction and augmented reality, investigates the potential avenues for creating natural human-robot collaboration through spatial dialogue utilizing AR and proposes a holistic architectural design for human-robot collaboration.

The role of imaging in pediatric bladder augmentation

Energy Technology Data Exchange (ETDEWEB)

Breen, Micheal; Chow, Jeanne S. [Boston Children' s Hospital, Department of Radiology, Boston, MA (United States); Phelps, Andrew [UCSF Benioff Children' s Hospital San Francisco, Department of Radiology and Biomedical Imaging, San Francisco, CA (United States); Estrada, Carlos [Boston Children' s Hospital, Department of Urology, Boston, MA (United States)

2015-09-15

Bladder augmentation (also called augmentation cystoplasty) refers to a number of surgical methods that increase the capacity and compliance of the urinary bladder. Imaging has an important role in the postoperative evaluation of bladder augmentation. The most common augmentation procedures utilize enteric segments to augment the bladder. The various types of bladder augmentation have characteristic appearances on different imaging modalities. Spontaneous bladder perforation is a complication that is seen in both early and late post-operative periods and it is one of the most important complications for radiologists to be aware of as it is life-threatening. We review the indications for bladder augmentation in children, the surgical techniques employed, the normal postoperative appearances on imaging studies and the role of imaging complications of bladder augmentation including delayed spontaneous bladder rupture, which is life-threatening. (orig.)

Repeated vertebral augmentation for new vertebral compression fractures of postvertebral augmentation patients: a nationwide cohort study

Directory of Open Access Journals (Sweden)

Liang CL

2015-03-01

Full Text Available Cheng-Loong Liang,1 Hao-Kwan Wang,1 Fei-Kai Syu,2 Kuo-Wei Wang,1 Kang Lu,1 Po-Chou Liliang1 1Department of Neurosurgery, E-Da Hospital, I-Shou University, Kaohsiung City, Taiwan; 2Department of Pharmacy, China Medical University Hospital, Taichung City, Taiwan Purpose: Postvertebral augmentation vertebral compression fractures are common; repeated vertebral augmentation is usually performed for prompt pain relief. This study aimed to evaluate the incidence and risk factors of repeat vertebral augmentation.Methods: We performed a retrospective, nationwide, population-based longitudinal observation study, using the National Health Insurance Research Database (NHIRD of Taiwan. All patients who received vertebral augmentation for vertebral compression fractures were evaluated. The collected data included patient characteristics (demographics, comorbidities, and medication exposure and repeat vertebral augmentation. Kaplan–Meier and stratified Cox proportional hazard regressions were performed for analyses.Results: The overall incidence of repeat vertebral augmentation was 11.3% during the follow-up until 2010. Patients with the following characteristics were at greater risk for repeat vertebral augmentation: female sex (AOR=1.24; 95% confidence interval [CI]: 1.10–2.36, advanced age (AOR=1.60; 95% CI: 1.32–2.08, diabetes mellitus (AOR=4.31; 95% CI: 4.05–5.88, cerebrovascular disease (AOR=4.09; 95% CI: 3.44–5.76, dementia (AOR=1.97; 95% CI: 1.69–2.33, blindness or low vision (AOR=3.72; 95% CI: 2.32–3.95, hypertension (AOR=2.58; 95% CI: 2.35–3.47, and hyperlipidemia (AOR=2.09; 95% CI: 1.67–2.22. Patients taking calcium/ vitamin D (AOR=2.98; 95% CI: 1.83–3.93, bisphosphonates (AOR=2.11; 95% CI: 1.26–2.61, or calcitonin (AOR=4.59; 95% CI: 3.40–5.77 were less likely to undergo repeat vertebral augmentation; however, those taking steroids (AOR=7.28; 95% CI: 6.32–8.08, acetaminophen (AOR=3.54; 95% CI: 2.75–4.83, or nonsteroidal

Hybrid-augmented intelligence:collaboration and cognition

Institute of Scientific and Technical Information of China (English)

Nan-ning ZHENG; Zi-yi LIU; Peng-ju REN; Yong-qiang MA; Shi-tao CHEN; Si-yu YU; Jian-ru XUE

2017-01-01

The long-term goal of artificial intelligence (AI) is to make machines learn and think like human beings. Due to the high levels of uncertainty and vulnerability in human life and the open-ended nature of problems that humans are facing, no matter how intelligent machines are, they are unable to completely replace humans. Therefore, it is necessary to introduce human cognitive capabilities or human-like cognitive models into AI systems to develop a new form of AI, that is, hybrid-augmented intelligence. This form of AI or machine intelligence is a feasible and important developing model. Hybrid-augmented intelligence can be divided into two basic models:one is human-in-the-loop augmented intelligence with human-computer collaboration, and the other is cognitive computing based augmented intelligence, in which a cognitive model is embedded in the machine learning system. This survey describes a basic framework for human-computer collaborative hybrid-augmented intelligence, and the basic elements of hybrid-augmented intelligence based on cognitive computing. These elements include intuitive reasoning, causal models, evolution of memory and knowledge, especially the role and basic principles of intuitive reasoning for complex problem solving, and the cognitive learning framework for visual scene understanding based on memory and reasoning. Several typical applications of hybrid-augmented intelligence in related fields are given.

ARSC: Augmented Reality Student Card--An Augmented Reality Solution for the Education Field

Science.gov (United States)

El Sayed, Neven A. M.; Zayed, Hala H.; Sharawy, Mohamed I.

2011-01-01

Augmented Reality (AR) is the technology of adding virtual objects to real scenes through enabling the addition of missing information in real life. As the lack of resources is a problem that can be solved through AR, this paper presents and explains the usage of AR technology we introduce Augmented Reality Student Card (ARSC) as an application of…

Greece - energy situation 1986/87

International Nuclear Information System (INIS)

1988-01-01

The energy situation of Greece is reviewed on the basis of relevant data. Data on the country's national and international energy policy are followed by an outline of trends in energy sources and electric power generation. Key figures are presented on the country's external trade and balance of payments. (UA) [de

India - energy situation 1986/87

International Nuclear Information System (INIS)

1988-01-01

The energy situation of India is reviewed on the basis of relevant data. Data on the country's national and international energy policy are followed by an outline of trends in energy sources and electric power generation. Key figures are presented on the country's external trade and balance of payments. (UA) [de

Ethiopia - energy situation 1982/83

Energy Technology Data Exchange (ETDEWEB)

1984-02-01

The energy situation of Ethiopia is reviewed on the basis of some relevant data. Its energy policy is commented on, and developments in electric power generation are described as well as the trends observed for the various energy sources. Figures are given on external trade and on the balance of payments.

Mersiline mesh in premaxillary augmentation.

Science.gov (United States)

Foda, Hossam M T

2005-01-01

Premaxillary retrusion may distort the aesthetic appearance of the columella, lip, and nasal tip. This defect is characteristically seen in, but not limited to, patients with cleft lip nasal deformity. This study investigated 60 patients presenting with premaxillary deficiencies in which Mersiline mesh was used to augment the premaxilla. All the cases had surgery using the external rhinoplasty technique. Two methods of augmentation with Mersiline mesh were used: the Mersiline roll technique, for the cases with central symmetric deficiencies, and the Mersiline packing technique, for the cases with asymmetric deficiencies. Premaxillary augmentation with Mersiline mesh proved to be simple technically, easy to perform, and not associated with any complications. Periodic follow-up evaluation for a mean period of 32 months (range, 12-98 months) showed that an adequate degree of premaxillary augmentation was maintained with no clinically detectable resorption of the mesh implant.

Augmented Reality-Guided Lumbar Facet Joint Injections.

Science.gov (United States)

Agten, Christoph A; Dennler, Cyrill; Rosskopf, Andrea B; Jaberg, Laurenz; Pfirrmann, Christian W A; Farshad, Mazda

2018-05-08

The aim of this study was to assess feasibility and accuracy of augmented reality-guided lumbar facet joint injections. A spine phantom completely embedded in hardened opaque agar with 3 ring markers was built. A 3-dimensional model of the phantom was uploaded to an augmented reality headset (Microsoft HoloLens). Two radiologists independently performed 20 augmented reality-guided and 20 computed tomography (CT)-guided facet joint injections each: for each augmented reality-guided injection, the hologram was manually aligned with the phantom container using the ring markers. The radiologists targeted the virtual facet joint and tried to place the needle tip in the holographic joint space. Computed tomography was performed after each needle placement to document final needle tip position. Time needed from grabbing the needle to final needle placement was measured for each simulated injection. An independent radiologist rated images of all needle placements in a randomized order blinded to modality (augmented reality vs CT) and performer as perfect, acceptable, incorrect, or unsafe. Accuracy and time to place needles were compared between augmented reality-guided and CT-guided facet joint injections. In total, 39/40 (97.5%) of augmented reality-guided needle placements were either perfect or acceptable compared with 40/40 (100%) CT-guided needle placements (P = 0.5). One augmented reality-guided injection missed the facet joint space by 2 mm. No unsafe needle placements occurred. Time to final needle placement was substantially faster with augmented reality guidance (mean 14 ± 6 seconds vs 39 ± 15 seconds, P Augmented reality-guided facet joint injections are feasible and accurate without potentially harmful needle placement in an experimental setting.

Augmented marked graphs

CERN Document Server

Cheung, King Sing

2014-01-01

Petri nets are a formal and theoretically rich model for the modelling and analysis of systems. A subclass of Petri nets, augmented marked graphs possess a structure that is especially desirable for the modelling and analysis of systems with concurrent processes and shared resources.This monograph consists of three parts: Part I provides the conceptual background for readers who have no prior knowledge on Petri nets; Part II elaborates the theory of augmented marked graphs; finally, Part III discusses the application to system integration. The book is suitable as a first self-contained volume

Augmented fish health monitoring

International Nuclear Information System (INIS)

Michak, P.; Rogers, R.; Amos, K.

1991-05-01

The Bonneville Power Administration (BPA) initiated the Augmented Fish Health Monitoring project in 1986. This project was a five year interagency project involving fish rearing agencies in the Columbia Basin. Historically, all agencies involved with fish health in the Columbia Basin were conducting various levels of fish health monitoring, pathogen screening and collection. The goals of this project were; to identify, develop and implement a standardized level of fish health methodologies, develop a common data collection and reporting format in the area of artificial production, evaluate and monitor water quality, improve communications between agencies and provide annual evaluation of fish health information for production of healthier smolts. This completion report will contain a project evaluation, review of the goals of the project, evaluation of the specific fish health analyses, an overview of highlights of the project and concluding remarks. 8 refs., 1 fig., 4 tabs

Studies of safety and critical work situations in nuclear power plants: A human factors perspective

International Nuclear Information System (INIS)

Jacobsson Kecklund, L.

1998-05-01

The purpose of this thesis was to develop and apply different approaches for analyzing safety in critical work situations in real work settings in nuclear power plants, and also to identify safety enhancing measures by using the framework of interaction between human, organizational and technical subsystems. A Cognitive Psychology as well as a Stress Psychology framework was used. All studies were related to the annual outage operational state where the need for coping with many infrequent tasks, often carried out under high time pressure, puts great strain on the staff and organisation of the plant. In three studies the natural variations in the plant state, normal operation and annual outage operation, were used to explore human performance, work-related factors as well as coping and the operators' own resources and the relationship between them. In the annual outage condition high work demands, decreased sleepiness at night shift, more errors and less satisfaction with work performance quality was reported by maintenance as well as by control room operators. A relationship between high work demands and more organizational problems and reports of more frequent human errors and lower satisfactions with work performance quality was also identified in the annual outage condition. Moreover, a relationship between increased sleepiness during night shift, more frequent use of coping strategies and a higher frequency of human errors was reported. In two studies the Event and Barrier Function Model was applied to analyze the safety of barrier function systems inserted into work process sequences to protect the systems from the negative consequences of failures and errors. The model was also used to assess safety in relation to a technical and organizational change. The last study addressed changes in work performance and work-related factors in relation to a technical and organizational change of a safety significant work process involving increased automation and new

Energy situation. November 1998

International Nuclear Information System (INIS)

1999-01-01

This report presents a balance sheet of the French energy situation (domestic demand, national production, consumption, imports, exports, sales, prices, stocks..) in November 1998. Data are presented using graphics and tables and as follows: energy bill of all energy sources (evolution since January 1996), primary energy (energy dependency, consumption after climate correction, CO 2 emissions), solid mineral fuels, petroleum products, natural gas and electric power. (J.S.)

Wide area tracking method for augmented reality supporting nuclear power plant maintenance work

International Nuclear Information System (INIS)

Ishii, Hirotake; Yan, Weida; Yang, Shou-feng; Shimoda, Hiroshi; Izumi, Masanori

2010-01-01

A new fiducial marker for augmented reality was designed along with a method that recognizes the markers captured by a camera and calculates the relative position and orientation between the markers and the camera. These markers can be used at both long and short distances without increasing their number in the environment. Results of the experimental evaluation show that the new marker can be used in a larger area than legacy markers such as square markers and circular markers. (author)

Design and evaluation of augmented reality for nuclear power plant maintenance based on Cognitive activity analysis

International Nuclear Information System (INIS)

Koo, Jwa Jin

2008-02-01

The goals of maintenance in nuclear power plants (NPPs) are to reduce the number of plant shutdowns, to decrease the shutdown time, to minimize the maintenance costs, and to improve nuclear safety. Furthermore, it is difficult for maintenance personnel to conduct work in NPPs due to the complexity of NPPs, safety issues and time constraints. Human errors should be prevented to achieve maintenance goals in NPPs. Therefore, it is necessary to improve working conditions by introducing support systems. Augmented Reality (AR) has the potential to assist with maintenance tasks and make maintenance personnel concentrate on the tasks, which will then the reduced human error and improve human performance. The working procedure for AR systems was designed based on the characteristics of cognitive activity, and an experiment was conducted to estimate the effectiveness of AR. The results indicated that a well-designed working procedure for AR systems was more effective than a conventional paper-based working procedure. In addition, participants made fewer errors using the designed working procedure. AR systems as maintenance support systems are beneficial technology that can improve maintenance performance by reducing cognitive loads and unnecessary movements. An AR application can be attractive and effective at supporting maintenance task

Visualizing UAS-collected imagery using augmented reality

Science.gov (United States)

Conover, Damon M.; Beidleman, Brittany; McAlinden, Ryan; Borel-Donohue, Christoph C.

2017-05-01

One of the areas where augmented reality will have an impact is in the visualization of 3-D data. 3-D data has traditionally been viewed on a 2-D screen, which has limited its utility. Augmented reality head-mounted displays, such as the Microsoft HoloLens, make it possible to view 3-D data overlaid on the real world. This allows a user to view and interact with the data in ways similar to how they would interact with a physical 3-D object, such as moving, rotating, or walking around it. A type of 3-D data that is particularly useful for military applications is geo-specific 3-D terrain data, and the visualization of this data is critical for training, mission planning, intelligence, and improved situational awareness. Advances in Unmanned Aerial Systems (UAS), photogrammetry software, and rendering hardware have drastically reduced the technological and financial obstacles in collecting aerial imagery and in generating 3-D terrain maps from that imagery. Because of this, there is an increased need to develop new tools for the exploitation of 3-D data. We will demonstrate how the HoloLens can be used as a tool for visualizing 3-D terrain data. We will describe: 1) how UAScollected imagery is used to create 3-D terrain maps, 2) how those maps are deployed to the HoloLens, 3) how a user can view and manipulate the maps, and 4) how multiple users can view the same virtual 3-D object at the same time.

[Cement augmentation on the spine : Biomechanical considerations].

Science.gov (United States)

Kolb, J P; Weiser, L; Kueny, R A; Huber, G; Rueger, J M; Lehmann, W

2015-09-01

Vertebral compression fractures are the most common osteoporotic fractures. Since the introduction of vertebroplasty and screw augmentation, the management of osteoporotic fractures has changed significantly. The biomechanical characteristics of the risk of adjacent fractures and novel treatment modalities for osteoporotic vertebral fractures, including pure cement augmentation by vertebroplasty, and cement augmentation of screws for posterior instrumentation, are explored. Eighteen human osteoporotic lumbar spines (L1-5) adjacent to vertebral bodies after vertebroplasty were tested in a servo-hydraulic machine. As augmentation compounds we used standard cement and a modified low-strength cement. Different anchoring pedicle screws were tested with and without cement augmentation in another cohort of human specimens with a simple pull-out test and a fatigue test that better reflects physiological conditions. Cement augmentation in the osteoporotic spine leads to greater biomechanical stability. However, change in vertebral stiffness resulted in alterations with the risk of adjacent fractures. By using a less firm cement compound, the risk of adjacent fractures is significantly reduced. Both screw augmentation techniques resulted in a significant increase in the withdrawal force compared with the group without cement. Augmentation using perforated screws showed the highest stability in the fatigue test. The augmentation of cement leads to a significant change in the biomechanical properties. Differences in the stability of adjacent vertebral bodies increase the risk of adjacent fractures, which could be mitigated by a modified cement compound with reduced strength. Screws that were specifically designed for cement application displayed greatest stability in the fatigue test.

Integral modeling and financial impact of the geothermal situation and power plant at Soultz-sous-Forets

International Nuclear Information System (INIS)

Heidinger, Ph.

2010-01-01

The science about deep Enhanced Geothermal Systems (EGS) is still an emerging process and for further spreading economics is the key of the technology. To understand the financial situation, a program for economic evaluation was developed. This software (Euronaut) is completely modularized and considers all cash flows. Projects like an EGS are wrapped into tree-like structures. Based on the results which were gained at Soultz-sous-Forets, two configurations were designed. The first EGS configuration consists of a simplified two well (doublet) system where the dependencies of all components (mainly the reservoir, wells, pumps and the heat-to-power conversion unit) are physically and economically linked together. The realization of these dependencies and their complex interactions enable a sensitivity analysis of the borehole depth and reservoir depth, respectively. As a result, depth dependent effective costs and revenues of an EGS plant with the geohydrological characteristics of Soultz-sous-Forets are determined. As a future development, the second configuration will adapt the actual situation at Soultz-sous-Forets with the individual features of all four wells (GPK1 - GPK4). Then, this model can be used for all kinds of sensitivity analyses to clarify the impact of certain components or to optimize the operation scheme; e.g. the flow rates. (author)

La violence dans les services sociaux: situation dans les services d'aide contrainte du canton du Jura

OpenAIRE

Durand, Loriane; Favre, Eliane

2017-01-01

Mon Travail de Bachelor a pour but premier de prendre connaissance de la situation de la violence dans les services d’aide contrainte du canton du Jura. La violence est-elle une réalité ? De quels types de violence s’agit-il ? Pourquoi cette violence, quelles en sont les raisons ? Cette violence augmente-t-elle le stress dans la profession d’assistant social ?

Feasibility of water injection into the turbine coolant to permit gas turbine contingency power for helicopter application

Science.gov (United States)

Vanfossen, G. J.

1983-01-01

A system which would allow a substantially increased output from a turboshaft engine for brief periods in emergency situations with little or no loss of turbine stress rupture life is proposed and studied analytically. The increased engine output is obtained by overtemperaturing the turbine; however, the temperature of the compressor bleed air used for hot section cooling is lowered by injecting and evaporating water. This decrease in cooling air temperature can offset the effect of increased gas temperature and increased shaft speed and thus keep turbine blade stress rupture life constant. The analysis utilized the NASA-Navy-Engine-Program or NNEP computer code to model the turboshaft engine in both design and off-design modes. This report is concerned with the effect of the proposed method of power augmentation on the engine cycle and turbine components. A simple cycle turboshaft engine with a 16:1 pressure ratio and a 1533 K (2760 R) turbine inlet temperature operating at sea level static conditions was studied to determine the possible power increase and the effect on turbine stress rupture life that could be expected using the proposed emergency cooling scheme. The analysis showed a 54 percent increse in output power can be achieved with no loss in gas generator turbine stress rupture life. A 231 K (415 F) rise in turbine inlet temperature is required for this level of augmentation. The required water flow rate was found to be .0109 kg water per kg of engine air flow.

Chin augmentation

Science.gov (United States)

... or bigger compared to the nose. The best candidates for chin augmentation are people with weak or ... www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. ...

Prototyping Augmented Reality

CERN Document Server

Mullen, Tony

2011-01-01

Learn to create augmented reality apps using Processing open-source programming language Augmented reality (AR) is used all over, and you may not even realize it. Smartphones overlay data onto live camera views to show homes for sale, restaurants, or historical sites. American football broadcasts use AR to show the invisible first-down line on the field to TV viewers. Nike and Budweiser, among others, have used AR in ads. Now, you can learn to create AR prototypes using 3D data, Processing open-source programming language, and other languages. This unique book is an easy-to-follow guide on how

Influence of Augmented Reality on Purchase Intention : The IKEA Case

OpenAIRE

Raska, Krystof; Richter, Tobias

2017-01-01

Augmented reality (AR) allows the enrichment of the physical world by adding virtual computer-generated digital information in real time to it (Furht, 2014). This provides marketers with previously unimagined options for reaching out and engaging with customers. Having the power to put the (virtual) products in the hand of customers, creates interesting opportunities for the users to engage with a brand, service or product (Yaoyuneyong et al., 2016). Although the AR market is expected to grow...

Augmented reality som wearable technology

DEFF Research Database (Denmark)

Rahn, Annette

“How Augmented reality can facilitate learning in visualizing human anatomy “ At this station I demonstrate how Augmented reality can be used to visualize the human lungs in situ and as a wearable technology which establish connection between body, image and technology in education. I will show...

Opening speech: nuclear power today - the situation in germany

International Nuclear Information System (INIS)

Gueldner, R.

2005-01-01

Nuclear power is experiencing an upswing worldwide. High prices of conventional fuels, discussions about the long-term continuity of supply, rising energy requirements, and the search for efficient ways of protecting the climate have moved nuclear power back into focus in a positive way. This is also true for Germany. In this country, nuclear power has gone through twelve very successful months since the 2004 Nuclear Technology Conference in Duesseldorf, as is borne out by the performance of all nuclear power plants in Germany. A change of mood towards a positive view of nuclear power is taking place in Germany. It is also seen, however, that the ''problem'' of final storage, which has been solved technically, is in urgent need of a political solution. German know-how in nuclear technology enjoys a high reputation internationally. For manufacturers and the associated supplier industries, this means excellent market opportunities, also for future projects, in view of worldwide demand. Various nuclear projects have progressed at long last: The Heinz Meier-Leibnitz research reactor (FRM-II) has been commissioned; the final stage of expansion of the Urenco uranium enrichment plant in Gronau has been approved; the license for a capacity increase in the ANF fuel fabrication plant in Lingen has been granted. Nuclear power is enjoying a high reputation also in the European Union. Major expansion plans exist in Asia, while increases in power and performance as well as life extensions can be observed in the United States. The world needs a sustainable energy mix - with nuclear power. (orig.)

Interactive Assembly Guide using Augmented Reality

DEFF Research Database (Denmark)

Andersen, Martin; Andersen, Rasmus Skovgaard; Larsen, Christian Lindequist

2009-01-01

This paper presents an Augmented Reality system for aiding a pump assembling process at Grundfos, one of the leading pump producers. Stable pose estimation of the pump is required in order to augment the graphics correctly. This is achieved by matching image edges with synthesized edges from CAD...... norm. A dynamic visualization of the augmented graphics provides the user with guidance. Usability tests show that the accuracy of the system is sufficient for assembling the pump....

Applied means to increase stimulation in the control room work at the Swedish nuclear power plants

International Nuclear Information System (INIS)

Blomberg, P.E.; Akerhielm, F.

1988-01-01

Nuclear power plants are generally designed and built with a quality which implies that the units seldom require intervention from the operating staff under normal operating conditions. This leaves the operators with the dominating task of only passively supervising the process. A number of measures have been taken to counteract the problem of under-stimulated individuals in the control rooms and to maintain active and purposeful working conditions. Basically these measures derive from the belief that augmented competence, increased responsibilities and a enhanced sense of indispensability functions as an inspiration even in a monotonous working situation. For this purpose a number of activities and tasks, parallel to the normal duties as member of the operating staff, have been implemented

Aspects of User Experience in Augmented Reality

DEFF Research Database (Denmark)

Madsen, Jacob Boesen

in human factors related to Augmented Reality. This is investigated partly as how Augmented Reality applications are used in unsupervised settings, and partly in specific evaluations related to user performance in supervised settings. The thesis starts by introducing Augmented Reality to the reader......, followed by a presentation of the technical areas related to the field, and different human factor areas. As a contribution to the research area, this thesis presents five separate, but sequential, papers within the area of Augmented Reality.......In Augmented Reality applications, the real environment is annotated or enhanced with computer-generated graphics. This is a topic that has been researched in the recent decades, but for many people this is a brand new and never heard of topic. The main focus of this thesis is investigations...

AR Feels "Softer" than VR: Haptic Perception of Stiffness in Augmented versus Virtual Reality.

Science.gov (United States)

Gaffary, Yoren; Le Gouis, Benoit; Marchal, Maud; Argelaguet, Ferran; Arnaldi, Bruno; Lecuyer, Anatole

2017-11-01

Does it feel the same when you touch an object in Augmented Reality (AR) or in Virtual Reality (VR)? In this paper we study and compare the haptic perception of stiffness of a virtual object in two situations: (1) a purely virtual environment versus (2) a real and augmented environment. We have designed an experimental setup based on a Microsoft HoloLens and a haptic force-feedback device, enabling to press a virtual piston, and compare its stiffness successively in either Augmented Reality (the virtual piston is surrounded by several real objects all located inside a cardboard box) or in Virtual Reality (the same virtual piston is displayed in a fully virtual scene composed of the same other objects). We have conducted a psychophysical experiment with 12 participants. Our results show a surprising bias in perception between the two conditions. The virtual piston is on average perceived stiffer in the VR condition compared to the AR condition. For instance, when the piston had the same stiffness in AR and VR, participants would select the VR piston as the stiffer one in 60% of cases. This suggests a psychological effect as if objects in AR would feel "softer" than in pure VR. Taken together, our results open new perspectives on perception in AR versus VR, and pave the way to future studies aiming at characterizing potential perceptual biases.

Escape route simulator utilizing augmented reality

Energy Technology Data Exchange (ETDEWEB)

Mattos, Karen Salazar Ribeiro de; Mó, Antônio Carlos de A.; Santo, André Cotelli do E.; Silva, Marcio Henrique, E-mail: karensalazar.1190@gmail.com [Instituto de Engenharia Nuclear (IEN/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Centro Universitário Carioca (UniCarioca), Rio de Janeiro, RJ (Brazil)

2017-07-01

Due to increasing demand and interest in the interaction of technology platforms and integration of different types of systems and technologies, some tools are already providing practical ways to develop integrated applications. The tools explored by this article are Unity, a platform for game development, and Vuforia, an SDK, software development kit, for augmented reality creation. The coalition proposal of these resources is to create an intuitive escape route that can be used for the evacuation of buildings or open spaces in view of imminent danger, such as radiation leakage, and that can be accessed from a target available at the institution. It has also the intention of simulating situations that involve training of personnel in order to obtain methods that allow to save financial resources, and even to avoid that those who are involved are exposed to risks unnecessarily. The simulator is expected to help design, test, and improve ways to maintain the physical integrity of the facility and provide end users with a better sense of immersion and attractiveness. (author)

Escape route simulator utilizing augmented reality

International Nuclear Information System (INIS)

Mattos, Karen Salazar Ribeiro de; Mó, Antônio Carlos de A.; Santo, André Cotelli do E.; Silva, Marcio Henrique

2017-01-01

Due to increasing demand and interest in the interaction of technology platforms and integration of different types of systems and technologies, some tools are already providing practical ways to develop integrated applications. The tools explored by this article are Unity, a platform for game development, and Vuforia, an SDK, software development kit, for augmented reality creation. The coalition proposal of these resources is to create an intuitive escape route that can be used for the evacuation of buildings or open spaces in view of imminent danger, such as radiation leakage, and that can be accessed from a target available at the institution. It has also the intention of simulating situations that involve training of personnel in order to obtain methods that allow to save financial resources, and even to avoid that those who are involved are exposed to risks unnecessarily. The simulator is expected to help design, test, and improve ways to maintain the physical integrity of the facility and provide end users with a better sense of immersion and attractiveness. (author)

Augmented “Ouch!”. : How to create intersubjective augmented objects into which we can bump

NARCIS (Netherlands)

Liberati, Nicola

2015-01-01

The aim of this work is to provide the elements to design an intersubjective augmented reality in order to make the augmented objects part of our everyday world. This work will analyse intersubjectivity from a phenomenological point of view using the works by Husserl and Schutz. Thanks to these two

Breast Augmentation

African Journals Online (AJOL)

1974-04-13

Apr 13, 1974 ... Complications encountered after breast augmentation are dealt with in .... in Phisohex or other suitable preparation for a few days before surgery ... In all cases, the prosthesis causes a fibrous tissue capsule to form around it.

Marketing and Augmented Reality

OpenAIRE

Zelený, Martin

2010-01-01

The main goal of this diploma thesis is to identify the usage of augmented reality in contemporary marketing practice and the expectations of marketers for the future use. This will be achieved by conducting a quantitative and qualitative research among existing creative and advertising companies. Secondary goal is introducing the concept of augmented reality from the theoretical point of view and also description of potential utilization based on known examples. The tools for the practical p...

Augmented reality and its practical application

OpenAIRE

ZÍTKOVÁ, Helena

2011-01-01

This thesis combines topic of augmented reality with tourism. For analyzing the state of the use of augmented reality was composed case studies. It was created product, which is called Guide to mobile phone.

Augmented Fotonovelas: A Visual Methodology for Community Engaged Research

OpenAIRE

Hidalgo, LeighAnna Grace

2014-01-01

Augmented Fotonovelas draw upon the aesthetic of traditional fotonovelas, but incorporate new technologies--such as video interviews, interactive mapping, smart phone technology, and Augmented Reality (AR). Augmented Fotonovelas also make the most of the classic form, utilizing photographs, text, and bubble captions. Through this methodology, new and old come together to produce Augmented Scholarship. I define Augmented Scholarship as knowledge production bridging the gap between communities ...

Augmenting the Web through Open Hypermedia

DEFF Research Database (Denmark)

Bouvin, N.O.

2003-01-01

Based on an overview of Web augmentation and detailing the three basic approaches to extend the hypermedia functionality of the Web, the author presents a general open hypermedia framework (the Arakne framework) to augment the Web. The aim is to provide users with the ability to link, annotate, a......, and otherwise structure Web pages, as they see fit. The paper further discusses the possibilities of the concept through the description of various experiments performed with an implementation of the framework, the Arakne Environment......Based on an overview of Web augmentation and detailing the three basic approaches to extend the hypermedia functionality of the Web, the author presents a general open hypermedia framework (the Arakne framework) to augment the Web. The aim is to provide users with the ability to link, annotate...

Life extension of nuclear power plants: world situation and the Usa case

International Nuclear Information System (INIS)

Leon, P.T.; Cuesta, L.; Serra, E.; Yague, L.

2010-01-01

Life extension of nuclear power plants above 40 years of operation is an important issue in many countries. The Kyoto limits for CO 2 emissions, the security of supply, the costs of renewable energies and the economic crisis have pushed governments to continue operation of nuclear plants over the 40 years design life. In the Usa 59 units have obtained the extension of operation license from 40 to 60 years, and currently 19 units are in the reviewing process. The situation in the rest of the world is different. A list of countries, where nuclear units with a service life over 30 years, are still operating has been drawn up. A few countries like Belgium, Germany, Spain and Sweden are opposed to life extension. Some countries like Finland, the Netherlands, Switzerland, India, Japan and Usa, have adopted a life extension policy for their nuclear fleet. Other countries like France, Russia, United-Kingdom, Pakistan, South-Korea and Argentina have not yet taken any final decision. United-Kingdom and France have a case by case policy. In some countries like Japan, Indian or Pakistan, the legislation makes no reference to a maximum operating time but the reactors are allowed to continue operating as long as they comply with established safety conditions. (A.C.)

Outlook of nuclear power generation and international situation

Energy Technology Data Exchange (ETDEWEB)

Ekulund, S [International Atomic Energy Agency, Vienna (Austria)

1978-01-01

Nuclear power generation is advancing at rapid rate over the world, without any major accident. For the base load of electric power, when choice is made between nuclear energy and petroleum, Nuclear energy has larger economic advantages over petroleum as compared with the days before the oil crisis. The costs of its fuel and fuel cycle technology are reasonable. However, nuclear power generation currently has a number of problems. What causes this uncertainty is not technological, but political, i.e. governmental policy changes, and this is based on the apprehension about nuclear proliferation. What is necessary is to strengthen the existing international framework of nuclear nonproliferation. In this respect, IAEA through comprehensive safeguards will make contributions largely to reduction of the political uncertainty. It is important that the new initiatives toward international nuclear cooperation should eliminate the current trends of restraint and denial.

Estimation of grass to cow's milk transfer coefficients for emergency situations

International Nuclear Information System (INIS)

Ujwal, P.; Karunakara, N.; Yashodhara, I.; Rao, Chetan; Kumara, Sudeep; Dileep, B.N.; Ravi, P.M.

2012-01-01

Several studies have been reported on soil to grass equilibrium transfer factors and grass to cow's milk transfer coefficients for 137 Cs for the environs of different nuclear power plants of both India and other parts of the world. In such studies, the activity concentration of 137 Cs is measured in grass collected from different places. Cow's milk samples are collected from nearby localities or from milk dairies and analyzed for 137 Cs and the grass to cow's milk transfer coefficient is estimated. In situation where 137 Cs is not present in measurable activity concentrations, its stable counterpart (Cs) is measured for the estimation of transfer coefficients. These transfer coefficient values are generally used in theoretical models to estimate the dose to the population for hypothetical situation of emergency. It should be noted that the transfer coefficients obtained for equilibrium conditions may not be totally applicable for emergency situation. However, studies aimed at evaluating transfer coefficients for emergency situations are sparse because nuclear power plants do not release 137 Cs during normal operating situations and therefore simulating situation of emergency release is not possible. Hence, the only method to estimate the grass to milk transfer coefficient for emergency situation is to spike the grass with small quantity of stable Cs. This paper reports the results of grass to milk transfer coefficients for stable isotope of Cesium (Cs) for emergency situation

Aplikasi Web Augmented Reality Villa

Directory of Open Access Journals (Sweden)

Gede Yudha Prema Pangestu

2017-07-01

Full Text Available Bali is one of the highly developed tourist destination in Indonesia. The arrival of tourists having holiday in Bali led to increase residential needs with complete amenities. The occupancy rate of hotel and villa in Bali is increase significantlly during the long vacation. The emergence of new villa and hotel occupancy raises the level of competition in business, so it needs a correct use good marketing communication strategy in marketing the product in order to attract the attention of consumers. Web Application Augmented Reality Villa can help visualize the residential villa in three-dimensional shapes that look more attractive and practical. The use of brochures as written information and the application of augmented reality technology on the Web Application Augmented Reality Villa aims to develop an application that can provide information about the villa to visitors. Web Application uses Augmented Reality Villa designed by FlarToolkit library. Based on the test results show the application can display 3-dimensional objects by scanning marker villa in a brochure which already contain marker.

Augmented Reality Comes to Physics

Science.gov (United States)

Buesing, Mark; Cook, Michael

2013-01-01

Augmented reality (AR) is a technology used on computing devices where processor-generated graphics are rendered over real objects to enhance the sensory experience in real time. In other words, what you are really seeing is augmented by the computer. Many AR games already exist for systems such as Kinect and Nintendo 3DS and mobile apps, such as…

The Spanish Wind Energy Situation and Comparison with Portugal and The Netherlands

Energy Technology Data Exchange (ETDEWEB)

Varela, M.; Gonzalez, R. [Ciemat. Madrid (Spain)

1999-05-01

This report review the institutional and legal framework of wind energy in Spain as well as the current market situation, considering the geographical distribution of power, its past evaluation, what are the spanish foreseen wind power. A review of main actor within the wind market: suppliers promoters, administrative bodies, is also performed. The second part of the report carries out a comparison of the Spanish wind energy situation with the current conditions in Portugal and The Netherlands. These two countries present different approaches to wind energy integration. Finally, the report states some differences and weak points comparing their wind energy situation with the Spanish one. (Author) 12 refs.

Augmented reality implementation methods in mainstream applications

Directory of Open Access Journals (Sweden)

David Procházka

2011-01-01

Full Text Available Augmented reality has became an useful tool in many areas from space exploration to military applications. Although used theoretical principles are well known for almost a decade, the augmented reality is almost exclusively used in high budget solutions with a special hardware. However, in last few years we could see rising popularity of many projects focused on deployment of the augmented reality on dif­ferent mobile devices. Our article is aimed on developers who consider development of an augmented reality application for the mainstream market. Such developers will be forced to keep the application price, therefore also the development price, at reasonable level. Usage of existing image processing software library could bring a significant cut-down of the development costs. In the theoretical part of the article is presented an overview of the augmented reality application structure. Further, an approach for selection appropriate library as well as the review of the existing software libraries focused in this area is described. The last part of the article out­lines our implementation of key parts of the augmented reality application using the OpenCV library.

Development of a Real-Time Detection System for Augmented Reality Driving

Directory of Open Access Journals (Sweden)

Kuei-Shu Hsu

2015-01-01

Full Text Available Augmented reality technology is applied so that driving tests may be performed in various environments using a virtual reality scenario with the ultimate goal of improving visual and interactive effects of simulated drivers. Environmental conditions simulating a real scenario are created using an augmented reality structure, which guarantees the test taker’s security since they are not subject to real-life elements and dangers. Furthermore, the accuracy of tests conducted through virtual reality is not influenced by either environmental or human factors. Driver posture is captured in real time using Kinect’s depth perception function and then applied to driving simulation effects that are emulated by Unity3D’s gaming technology. Subsequently, different driving models may be collected through different drivers. In this research, nearly true and realistic street environments are simulated to evaluate driver behavior. A variety of different visual effects are easily available to effectively reduce error rates, thereby significantly improving test security as well as the reliability and reality of this project. Different situation designs are simulated and evaluated to increase development efficiency and build more security verification test platforms using such technology in conjunction with driving tests, vehicle fittings, environmental factors, and so forth.

[Interactive augmented reality systems : Aid for personalized patient education and rehabilitation].

Science.gov (United States)

Bork, F

2018-04-01

During patient education, information exchange plays a critical role both for patient compliance during medical or rehabilitative treatment and for obtaining an informed consent for an operative procedure. In this article the augmented reality system "Magic Mirror" as an additive tool during patient education, rehabilitation as well as anatomical education is highlighted. The Magic Mirror system allows the user of the system to inspect both a detailed model of the 3‑dimensional anatomy of the human body and volumetric slice images in a virtual mirror environment. First preliminary results from the areas of rehabilitation and learning anatomy indicate the broad potential of the Magic Mirror. Similarly, the system also provides interesting advantages for patient education situations in comparison to traditional methods of information exchange. Novel technologies, such as augmented reality are a door opener for many innovations in medicine. In the future, patient-specific systems, such as the Magic Mirror will be used increasingly more in areas such as patient education and rehabilitation. In order to maximize the benefits of such systems, further evaluation studies are necessary to find out about the best use cases and to start an iterative optimization process of these systems.

The prefect facing emergency situation

International Nuclear Information System (INIS)

Masse, H.

2006-01-01

In the field of emergency procedures regarding the protection of life, property and the environment, the 'prefet' of a department is the only public authority both representative of the state and accountable. In France laws and regulations have been in recent years revised in order to modernize emergency situations management. The 'prefet' of the Drome 'department', Henri MASSE, presents a summary of recent developments and explains how his services are organised in order to be able to handle emergency situations. He also focuses on his experience of handling the specific difficulties of nuclear risks, his department sheltering numerous nuclear facilities: EURODIF Pierrelatte nuclear fuel enrichment plant, EDF Tricastin nuclear power plant, AREVA Valence FBFC nuclear fuel manufacturing unit, etc. (author)

Detection of Nuclear Sources by UAV Teleoperation Using a Visuo-Haptic Augmented Reality Interface.

Science.gov (United States)

Aleotti, Jacopo; Micconi, Giorgio; Caselli, Stefano; Benassi, Giacomo; Zambelli, Nicola; Bettelli, Manuele; Zappettini, Andrea

2017-09-29

A visuo-haptic augmented reality (VHAR) interface is presented enabling an operator to teleoperate an unmanned aerial vehicle (UAV) equipped with a custom CdZnTe-based spectroscopic gamma-ray detector in outdoor environments. The task is to localize nuclear radiation sources, whose location is unknown to the user, without the close exposure of the operator. The developed detector also enables identification of the localized nuclear sources. The aim of the VHAR interface is to increase the situation awareness of the operator. The user teleoperates the UAV using a 3DOF haptic device that provides an attractive force feedback around the location of the most intense detected radiation source. Moreover, a fixed camera on the ground observes the environment where the UAV is flying. A 3D augmented reality scene is displayed on a computer screen accessible to the operator. Multiple types of graphical overlays are shown, including sensor data acquired by the nuclear radiation detector, a virtual cursor that tracks the UAV and geographical information, such as buildings. Experiments performed in a real environment are reported using an intense nuclear source.

Augmented reality som wearable

DEFF Research Database (Denmark)

Buhl, Mie; Rahn, Annette

2015-01-01

Artiklen omhandler design og implementering af Augmented Reality (AR) i form af en wearable i sygeplejerskeuddannelsens anatomiundervisning, mere specifikt undervisning i lungeanatomi og respiration, med fokus på potentialer for visuel læring. Projektet undersøger, hvordan en udviklet AR-applikat......Artiklen omhandler design og implementering af Augmented Reality (AR) i form af en wearable i sygeplejerskeuddannelsens anatomiundervisning, mere specifikt undervisning i lungeanatomi og respiration, med fokus på potentialer for visuel læring. Projektet undersøger, hvordan en udviklet AR...

Crew Situation Awareness, Diagnoses, and Performance in Simulated Nuclear Power Plant Process Disturbances

International Nuclear Information System (INIS)

Sebok, Angelia; Kaarstad, Magnhild

1998-01-01

Research was conducted at the OECD Halden Reactor Project to identify issues in crew performance in complex simulated nuclear power plant scenarios. Eight crews of operators participated in five scenarios, administered over a two or three-day period. Scenarios required either rule-based or knowledge-based problem solving. Several performance parameters were collected, including Situation Awareness (SA), objective performance, rated crew performance, and crew diagnoses. The purpose of this study was to investigate differences in performance measures in knowledge-based and rule-based scenarios. Preliminary data analysis revealed a significant difference in crew SA between the two scenario types: crews in the rule-based scenarios had significantly higher SA then crews in the knowledge-based scenarios. Further investigations were initiated to determine if crews performed differently, in terms of objective performance, rated crew performance, and diagnoses, between the scenario types. Correlations between the various crew performance measurements were calculated to reveal insights into the nature of SA, performance, and diagnoses. The insights into crew performance can be used to design more effective interfaces and operator performance aids, thus contributing to enhanced crew performance and improved plant safety. (authors)

AUGMENTED REALITY - STATE OF KNOWLEDGE, USE AND EXPERIMENTATION

Directory of Open Access Journals (Sweden)

Mihaela Filofteia TUTUNEA

2013-12-01

Full Text Available Technologies for augmenting reality have been consolidated during the last decades, extending their applicability to more and more socio-economic areas. The rapid evolution of mobile technologies and virtualization of the digital environment have created auspicious conditions for massive extension and implementation of solutions for augmenting reality at global level. Experience has already shown that augmented reality, alongside virtual reality can offer very important support solutions in modeling the real world with the aim of extending the human capabilities of perception, allowing the opening of a new phase in the world’s socio-economic development. Starting from the evident tendencies that have manifested at global level in the development and implementation of augmented reality technologies, the paper begins with the presentation of the most important aspects related to augmented reality technologies, highlighting their main areas of application, and presents the study realized for identifying the level of knowledge, use and effective experimentation of augmented reality applications by mobile device users. The results of this study could be very useful to the socio-economic environment, starting with the field of research, continuing with developers and providers of augmented reality solutions, manufacturers and providers of hardware infrastructure support for augmented reality solutions and systems, final users of these solutions, both individuals and businesses, and experimenting digital communities.

Diagnostic orientation in control of disturbance situations

International Nuclear Information System (INIS)

Hukki, K.; Norros, L.

1993-01-01

The object of the study is diagnostic judgement in the control of dynamic processes. The starting point was the known difficulty process operators have in utilizing knowledge of process dynamics in disturbance situations that require both diagnostic and prognostic actions. A model of the diagnostic judgement process as a construction of coherent interpretation of the situation is outlined, and comprehensive data from simulated disturbance handling by 6 crews of a PWR type nuclear power plant was analysed. The phase of analysis included evaluation of the adequacy of task performance, utilization of available process information, and evaluation of the interpretation of disturbance situations. The results suggest that a functional orientation towards task performance allows a more coherent and comprehensive interpretation of the situation and more adequate task performance. Coherence of interpretation seems to be reflected in a higher subjective certainty compared with crews with an incoherent interpretation. (author). 15 refs, 2 figs, 2 tabs

Successful treatment of schizophrenia with melperone augmentation in a patient with phenotypic CYP2D6 ultrarapid metabolization: a case report

Directory of Open Access Journals (Sweden)

Gahr Maximilian

2012-02-01

Full Text Available Abstract Introduction There are limited treatment options for people with schizophrenia with cytochrome P450 2D6 ultrarapid metabolizer status who do not respond to amisulpride. Furthermore, the literature does not provide evidence-based guidelines for this particular constellation. Case presentation We report the case of a 50-year-old Caucasian female patient with schizophrenia and cytochrome P450 2D6 ultrarapid metabolizer status who experienced an insufficient antipsychotic effect with amisulpride. She was successfully treated with melperone-augmented haloperidol. Conclusion This report yields melperone-augmented haloperidol as a possible pharmacological strategy in the described situation. In addition, our observations support the available evidence for the potential of melperone to act as an inhibitor of cytochrome P450 2D6.

Face to face versus Facebook: does exposure to social networking web sites augment or attenuate physiological arousal among the socially anxious?

Science.gov (United States)

Rauch, Shannon M; Strobel, Cara; Bella, Megan; Odachowski, Zachary; Bloom, Christopher

2014-03-01

The present study tested two competing hypotheses about the effect of Facebook exposure on the physiological arousal level of participants who then encountered the stimulus person in a face-to-face situation. Facebook exposure may attenuate later arousal by providing increased comfort and confidence, but it is also possible that Facebook exposure will augment arousal, particularly among the socially anxious. Participants completed a measure of social anxiety and were exposed to a stimulus person via Facebook, face to face, or both. Galvanic skin response was recorded during the exposures to the stimulus person. Results were consistent with the augmentation hypothesis: a prior exposure on Facebook will lead to increased arousal during a face-to-face encounter, particularly for those high in social anxiety.

Augmented reality in dentistry: a current perspective.

Science.gov (United States)

Kwon, Ho-Beom; Park, Young-Seok; Han, Jung-Suk

2018-02-21

Augmentation reality technology offers virtual information in addition to that of the real environment and thus opens new possibilities in various fields. The medical applications of augmentation reality are generally concentrated on surgery types, including neurosurgery, laparoscopic surgery and plastic surgery. Augmentation reality technology is also widely used in medical education and training. In dentistry, oral and maxillofacial surgery is the primary area of use, where dental implant placement and orthognathic surgery are the most frequent applications. Recent technological advancements are enabling new applications of restorative dentistry, orthodontics and endodontics. This review briefly summarizes the history, definitions, features, and components of augmented reality technology and discusses its applications and future perspectives in dentistry.

Augmented Reality

DEFF Research Database (Denmark)

Nielsen, Birgitte Lund; Brandt, Harald; Radmer, Ole

2017-01-01

Artiklen præsenterer resultater fra pilotafprøvning i 7.-klasses fysik/kemi og biologi af to Augmented Reality (AR)-apps til naturfagsundervisning. Muligheder og udfordringer ved lærerens stilladsering af elevernes undersøgende samtale og modelleringskompetence er undersøgt med interview...

Calcium phosphate barrier for augmentation of bone in noncontained periodontal osseous defects: a novel approach.

Science.gov (United States)

Chopra, Aditi; Sivaraman, Karthik; Awataramaney, Tarun K

2014-11-01

The aim of this technique is to augment bone in non-contained osseous deformities using a unique self-sustaining calcium phosphate barrier. Bone has the inherent ability to regenerate completely if it is provided with a fracture space or an undisturbed enclosed scaffold. A secluded environment is essential as it provides a secured, sterile and stable wound system that regenerates lost bone by a process of osteopromotion. Reconstructive techniques using bone grafts and barrier membranes utilize this principle for augmentation of deficient bony sites by providing a closed environment that promotes clot stability, graft retention, and facilitates correct cell repopulation. However, in noncontained bone defects like one walled infrabony periodontal defect or sites with horizontal bone loss, regeneration of bone still remains an unrealistic situation since osseous topography at such sites does not favor membrane stability or bone grafts retention. This case report presents a promising technique to augment bone in areas with horizontal loss. Augmentation of bone in the interdental area with horizontal bone loss was accomplished by building a contained defect using a unique self sustaining calcium phosphate cement formulation. The calcium phosphate barrier stimulates the lost cortical plates and promotes graft retention and clot stability. At 6 months, there was a significant bone fill and trabecular formation in the interdental area and reduction in tooth mobility. This promising technique could prove to be a good alternative to the conventional approaches for treating osseous deformities. Calcium phosphate is a promising barrier graft for repair of noncontained periodontal osseous defect. This technique cues both the clinicians and manufacturers to develop moldable tissue engineered constructs for osseous repair.

The Spanish Wind Energy Situation and Comparison with Portugal and The Netherlands

International Nuclear Information System (INIS)

Varela, M.; Gonzalez, R.

1999-01-01

This report review the institutional and legal framework of wind energy in Spain as well as the current market situation, considering the geographical distribution of power, its past evolution, what are the Spanish foreseen wind power.... A review of main actor within the wind market: suppliers, promoters, administrative bodies, is also performed. The second part of the report carries out a comparison of the Spanish wind energy situation with the current conditions in Portugal and The Netherlands. These two countries present different levels of wind development with also different approaches to wind energy integration. Finally, the report states some differences and weak points comparing their wind energy situation with the Spanish one. (Author) 12 refs

Situation of nuclear industry in Japan

International Nuclear Information System (INIS)

2004-03-01

This document presents the situation of nuclear industry in Japan: cooperation with France in the domain of the fuel cycle (in particular the back-end) and of for the industrial R and D about fast reactors and nuclear safety; present day situation characterized by a series of incidents in the domain of nuclear safety and by an administrative reorganization of the research and safety organizations; power of local representatives, results of April 2003 elections, liberalization of the electric power sector, impact of the TEPCO affair (falsification of safety reports) on the nuclear credibility, re-start up of the Monju reactor delayed by judicial procedures, stopping of the program of MOX fuel loading in Tepco's reactors, discovery of weld defects in the newly built Rokkasho-mura reprocessing plant, an ambitious program of reactors construction, the opportunity of Russian weapons dismantling for the re-launching of sodium-cooled fast reactors; the competition between France and Japan for the setting up of ITER reactor and its impact of the French/Japanese partnership. (J.S.)

Therapeutic options for lip augmentation.

Science.gov (United States)

Segall, Lorne; Ellis, David A F

2007-11-01

Aesthetic ideals vary with emerging fashion trends and within different cultures. However, over the past few decades, fuller lips have been considered a desirable trait. Many younger patients are presenting for lip augmentation to achieve the sought-after look commonly seen in many fashion magazines. In addition, as individuals age, they lose lip volume, with a thinning of the red lip, some effacement of the vermillion border, and elongation and flattening of the white portion of the lip. Rejuvenation of the lips plays a key role in restoring a more youthful appearance. As a result, lip augmentation appeals to a wide spectrum of patients who present with various different aesthetic goals and expectations. Numerous therapeutic options exist for aesthetic lip augmentation, ranging from temporary and permanent injectable fillers to implants and other surgical techniques.

Nuclear situation in Japan

International Nuclear Information System (INIS)

2006-01-01

This analysis takes stock on the nuclear situation in Japan. It discusses the ambitious equipment program in collaboration with the France, the destabilization of the japanese nuclear industry following the accidents and the energy policy evolutions. It presents the projects of the japanese nuclear industry: the Monju reactor restart, the Pluthermal project, the reprocessing power plant of Rokkasho Mura, the new reactors, the russian weapons dismantling, the ITER site selection and the buy out of Westinghouse by Toshiba. (A.L.B.)

Augmented Reality Interfaces for Additive Manufacturing

DEFF Research Database (Denmark)

Eiríksson, Eyþór Rúnar; Pedersen, David Bue; Frisvad, Jeppe Revall

2017-01-01

This paper explores potential use cases for using augmented reality (AR) as a tool to operate industrial machines. As a baseline we use an additive manufacturing system, more commonly known as a 3D printer. We implement novel augmented interfaces and controls using readily available open source...

Affordances in Mobile Augmented Reality Applications

Directory of Open Access Journals (Sweden)

Tor Gjøsæter

2014-10-01

Full Text Available This paper explores the affordances of augmented reality content in a mobile augmented reality application. A user study was conducted by performing a multi-camera video recording of seven think aloud sessions. The think aloud sessions consisted of individual users performing tasks, exploring and experiencing a mobile augmented reality (MAR application we developed for the iOS platform named ARad. We discuss the instrumental affordances we observed when users interacted with augmented reality content, as well as more complex affordances rising from conventions from media content, AR and the traditional WIMP paradigm. We find that remediation of traditional newspaper content through the MAR medium can provide engaging, pleasing and exciting user experiences. However, the some of the content still suffers from being shoveled onto the MAR platform without adapting it properly. Finally, we discuss what content was most successfully mediated to the user and how the content impacts the user experience.

Water augmented indirectly-fired gas turbine systems and method

Science.gov (United States)

Bechtel, Thomas F.; Parsons, Jr., Edward J.

1992-01-01

An indirectly-fired gas turbine system utilizing water augmentation for increasing the net efficiency and power output of the system is described. Water injected into the compressor discharge stream evaporatively cools the air to provide a higher driving temperature difference across a high temperature air heater which is used to indirectly heat the water-containing air to a turbine inlet temperature of greater than about 1,000.degree. C. By providing a lower air heater hot side outlet temperature, heat rejection in the air heater is reduced to increase the heat recovery in the air heater and thereby increase the overall cycle efficiency.

A Quantitative Team Situation Awareness Measurement Method Considering Technical and Nontechnical Skills of Teams

Directory of Open Access Journals (Sweden)

Ho Bin Yim

2016-02-01

Full Text Available Human capabilities, such as technical/nontechnical skills, have begun to be recognized as crucial factors for nuclear safety. One of the most common ways to improve human capabilities in general is training. The nuclear industry has constantly developed and used training as a tool to increase plant efficiency and safety. An integrated training framework was suggested for one of those efforts, especially during simulation training sessions of nuclear power plant operation teams. The developed training evaluation methods are based on measuring the levels of situation awareness of teams in terms of the level of shared confidence and consensus as well as the accuracy of team situation awareness. Verification of the developed methods was conducted by analyzing the training data of real nuclear power plant operation teams. The teams that achieved higher level of shared confidence showed better performance in solving problem situations when coupled with high consensus index values. The accuracy of nuclear power plant operation teams' situation awareness was approximately the same or showed a similar trend as that of senior reactor operators' situation awareness calculated by a situation awareness accuracy index (SAAI. Teams that had higher SAAI values performed better and faster than those that had lower SAAI values.

Augmented Reality Prototype for Visualizing Large Sensors’ Datasets

Directory of Open Access Journals (Sweden)

Folorunso Olufemi A.

2011-04-01

Full Text Available This paper addressed the development of an augmented reality (AR based scientific visualization system prototype that supports identification, localisation, and 3D visualisation of oil leakages sensors datasets. Sensors generates significant amount of multivariate datasets during normal and leak situations which made data exploration and visualisation daunting tasks. Therefore a model to manage such data and enhance computational support needed for effective explorations are developed in this paper. A challenge of this approach is to reduce the data inefficiency. This paper presented a model for computing information gain for each data attributes and determine a lead attribute.The computed lead attribute is then used for the development of an AR-based scientific visualization interface which automatically identifies, localises and visualizes all necessary data relevant to a particularly selected region of interest (ROI on the network. Necessary architectural system supports and the interface requirements for such visualizations are also presented.

Augmented reality in surgery.

Science.gov (United States)

Shuhaiber, Jeffrey H

2004-02-01

To evaluate the history and current knowledge of computer-augmented reality in the field of surgery and its potential goals in education, surgeon training, and patient treatment. National Library of Medicine's database and additional library searches. Only articles suited to surgical sciences with a well-defined aim of study, methodology, and precise description of outcome were included. Augmented reality is an effective tool in executing surgical procedures requiring low-performance surgical dexterity; it remains a science determined mainly by stereotactic registration and ergonomics. Strong evidence was found that it is an effective teaching tool for training residents. Weaker evidence was found to suggest a significant influence on surgical outcome, both morbidity and mortality. No evidence of cost-effectiveness was found. Augmented reality is a new approach in executing detailed surgical operations. Although its application is in a preliminary stage, further research is needed to evaluate its long-term clinical impact on patients, surgeons, and hospital administrators. Its widespread use and the universal transfer of such technology remains limited until there is a better understanding of registration and ergonomics.

Preliminary study of low carbon power demand and supply toward 2030

International Nuclear Information System (INIS)

Ogimoto, Kazuhiko; Ikeda, Yuichi; Kataoka, Kazuto; Ikegami, Takashi; Akai, Makoto

2012-01-01

It takes tens of years to realize the sustainable economy through reformation of energy infrastructure. The share of the electric power in the total energy increases, as the energy efficiency technologies of buildings and transportation and renewable energy technologies are of power technologies. Under these circumstances, it is necessary to deploy the long-term power demand-supply analysis and the long-term power system augmentation analysis so that the augmentation should be optimized and robust under various uncertainties so as to fulfill the criteria of security, economy and environmental. This paper, utilizing a long-range power system demand and supply model, ESPRIT, evaluates several scenarios with several options of nuclear. RE deployment, and thermal generation reinforcement based on the indicators such as self-sufficiency, economy, and environment to pursue the best demand-supply mix. (author)

Enhancing tourism with augmented and virtual reality

OpenAIRE

Jenny, Sandra

2017-01-01

Augmented and virtual reality are on the advance. In the last twelve months, several interesting devices have entered the market. Since tourism is one of the fastest growing economic sectors in the world and has become one of the major players in international commerce, the aim of this thesis was to examine how tourism could be enhanced with augmented and virtual reality. The differences and functional principles of augmented and virtual reality were investigated, general uses were described ...

Augmented Reality: Daily Prayers for Preschooler Student

Directory of Open Access Journals (Sweden)

Hendra Pradibta

2018-01-01

Full Text Available Education is one of the aspects that many synthesized with technology. Yet, this is contrary to the fact that where most of the learning materials are still based on text. This research aims to develop an alternative learning media by implementing Augmented Reality Technology for Preschooler students. Augmented Reality (AR is an application that can combine the virtual object as text, pictures and animation into the real world. Development of Augmented Reality application uses Web Aurasma Based Studio, with learning materials of daily prayer for preschool student. The development of the characters and the animations were using Adobe Illustrator and Adobe After Effects. The results of the study showed that technology Augmented Reality can be used as an alternative learning media especially in the learning process in Preschool Al Furqon. This is because the content Augmented Reality in the form of animation can gives more understanding and attention for preschool student to follow the learning process

Augmented reality user interface for mobile ground robots with manipulator arms

Science.gov (United States)

Vozar, Steven; Tilbury, Dawn M.

2011-01-01

Augmented Reality (AR) is a technology in which real-world visual data is combined with an overlay of computer graphics, enhancing the original feed. AR is an attractive tool for teleoperated UGV UIs as it can improve communication between robots and users via an intuitive spatial and visual dialogue, thereby increasing operator situational awareness. The successful operation of UGVs often relies upon both chassis navigation and manipulator arm control, and since existing literature usually focuses on one task or the other, there is a gap in mobile robot UIs that take advantage of AR for both applications. This work describes the development and analysis of an AR UI system for a UGV with an attached manipulator arm. The system supplements a video feed shown to an operator with information about geometric relationships within the robot task space to improve the operator's situational awareness. Previous studies on AR systems and preliminary analyses indicate that such an implementation of AR for a mobile robot with a manipulator arm is anticipated to improve operator performance. A full user-study can determine if this hypothesis is supported by performing an analysis of variance on common test metrics associated with UGV teleoperation.

From Augmentation Media to Meme Media.

Science.gov (United States)

Tanaka, Yuzuru

Computers as meta media are now evolving from augmentation media vehicles to meme media vehicles. While an augmentation media system provides a seamlessly integrated environment of various tools and documents, meme media system provides further functions to edit and distribute tools and documents. Documents and tools on meme media can easily…

A comparison of breast stimulation and intravenous oxytocin for the augmentation of labor.

Science.gov (United States)

Curtis, P; Resnick, J C; Evens, S; Thompson, C J

1999-06-01

Breast stimulation to augment labor has been used for centuries in tribal societies and by midwives. In recent years it has been shown to be effective in ripening the cervix, inducing labor, and as an alternative to oxytocin for the contraction stress test. This study compared the effectiveness of breast stimulation with oxytocin infusion in augmenting labor. Women admitted to the labor ward were eligible for the study if they had inadequate labor with premature rupture of the membranes and met inclusion criteria. They were assigned to oxytocin augmentation or breast stimulation (manual or pump), and were switched to oxytocin in the event of method failure. Outcomes included time to delivery, intervention to delivery, proportion of spontaneous deliveries, and Apgar scores. One hundred participants were needed in each arm of the study to demonstrate a 2- to 3-hour difference in delivery time, with a power of 80 percent. Analysis was performed on 79 women, of whom 49 were in the breast stimulation group and 30 in the oxytocin group. Sixty-five percent of the participants failed breast stimulation and were switched to oxytocin infusion. Although augmentation start to delivery was shorter for the oxytocin group (p < 0.001), no differences in total labor time occurred between the groups. Nulliparas receiving breast stimulation had more spontaneous (relative risk 1.7, p = 0.04), and fewer instrumental deliveries than those receiving oxytocin (relative risk 0.2, p = 0.02). No significant differences in adverse fetal outcomes occurred between the study groups. The small number of participants and a variety of problems with the conduct of the study prevented the formulation of reliable conclusions from the results. However, the study provided important insights into the feasibility and problems of developing a high-quality randomized trial of augmentation by breast stimulation.

Potential costs of breast augmentation mammaplasty.

Science.gov (United States)

Schmitt, William P; Eichhorn, Mitchell G; Ford, Ronald D

2016-01-01

Augmentation mammaplasty is one of the most common surgical procedures performed by plastic surgeons. The aim of this study was to estimate the cost of the initial procedure and its subsequent complications, as well as project the cost of Food and Drug Administration (FDA)-recommended surveillance imaging. The potential costs to the individual patient and society were calculated. Local plastic surgeons provided billing data for the initial primary silicone augmentation and reoperative procedures. Complication rates used for the cost analysis were obtained from the Allergen Core study on silicone implants. Imaging surveillance costs were considered in the estimations. The average baseline initial cost of silicone augmentation mammaplasty was calculated at $6335. The average total cost of primary breast augmentation over the first decade for an individual patient, including complications requiring reoperation and other ancillary costs, was calculated at $8226. Each decade thereafter cost an additional $1891. Costs may exceed $15,000 over an averaged lifetime, and the recommended implant surveillance could cost an additional $33,750. The potential cost of a breast augmentation, which includes the costs of complications and imaging, is significantly higher than the initial cost of the procedure. Level III, economic and decision analysis study. Copyright © 2015 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.

The Augmented REality Sandtable (ARES)

Science.gov (United States)

2015-10-01

Introduction The US Army Research Laboratory (ARL) Human Sciences Campaign calls out the topic of Virtual /Mixed and Augmented Reality as one of the...type of virtual environment. In virtual reality (VR), the totality of the environment is computer generated. In AR, the real world is augmented by...tangible user interfaces; and the effectiveness of virtual sand tables and similar systems. A market survey was also done to discover the state of

Augmented Reality: Daily Prayers for Preschooler Student

OpenAIRE

Hendra Pradibta

2018-01-01

Education is one of the aspects that many synthesized with technology. Yet, this is contrary to the fact that where most of the learning materials are still based on text. This research aims to develop an alternative learning media by implementing Augmented Reality Technology for Preschooler students. Augmented Reality (AR) is an application that can combine the virtual object as text, pictures and animation into the real world. Development of Augmented Reality application uses Web Aurasma Ba...

Applied Augmented Reality for High Precision Maintenance

Science.gov (United States)

Dever, Clark

Augmented Reality had a major consumer breakthrough this year with Pokemon Go. The underlying technologies that made that app a success with gamers can be applied to improve the efficiency and efficacy of workers. This session will explore some of the use cases for augmented reality in an industrial environment. In doing so, the environmental impacts and human factors that must be considered will be explored. Additionally, the sensors, algorithms, and visualization techniques used to realize augmented reality will be discussed. The benefits of augmented reality solutions in industrial environments include automated data recording, improved quality assurance, reduction in training costs and improved mean-time-to-resolution. As technology continues to follow Moore's law, more applications will become feasible as performance-per-dollar increases across all system components.

Augmented Reality in Tourism - Research and Applications Overview

Directory of Open Access Journals (Sweden)

Anabel L. Kečkeš

2017-06-01

Full Text Available Augmented reality is a complex interdisciplinary field utilizing information technologies in diverse areas such as medicine, education, architecture, industry, tourism and others, augmenting the real-time, real-world view with additional superimposed information in chosen format(s. The aim of this paper is to present an overview of both research and application aspects of using augmented reality technologies in tourism domain. While most research, and especially applications, are dealing with and developing visual-based augmented reality systems, there is a relevant amount of research discussing the utilization of other human senses such as tactioception and audioception, both being discussed within this work. A comprehensive literature analysis within this paper resulted with the identification, compilation and categorization of the key factors having the most relevant impact on the success of utilization of augmented technology in tourism domain.

Alternative realities : from augmented reality to mobile mixed reality

OpenAIRE

Claydon, Mark

2015-01-01

This thesis provides an overview of (mobile) augmented and mixed reality by clarifying the different concepts of reality, briefly covering the technology behind mobile augmented and mixed reality systems, conducting a concise survey of existing and emerging mobile augmented and mixed reality applications and devices. Based on the previous analysis and the survey, this work will next attempt to assess what mobile augmented and mixed reality could make possible, and what related applications an...

Chin augmentation - slideshow

Science.gov (United States)

... page: //medlineplus.gov/ency/presentations/100009.htm Chin augmentation - series—Normal anatomy To use the sharing features ... Bethesda, MD 20894 U.S. Department of Health and Human Services National Institutes of Health Page last updated: ...

Breast augmentation - slideshow

Science.gov (United States)

... page: //medlineplus.gov/ency/presentations/100205.htm Breast augmentation - series—Normal anatomy To use the sharing features ... Bethesda, MD 20894 U.S. Department of Health and Human Services National Institutes of Health Page last updated: ...

The power of PowerPoint.

Science.gov (United States)

Niamtu , J

2001-08-01

Carousel slide presentations have been used for academic and clinical presentations since the late 1950s. However, advances in computer technology have caused a paradigm shift, and digital presentations are quickly becoming standard for clinical presentations. The advantages of digital presentations include cost savings; portability; easy updating capability; Internet access; multimedia functions, such as animation, pictures, video, and sound; and customization to augment audience interest and attention. Microsoft PowerPoint has emerged as the most popular digital presentation software and is currently used by many practitioners with and without significant computer expertise. The user-friendly platform of PowerPoint enables even the novice presenter to incorporate digital presentations into his or her profession. PowerPoint offers many advanced options that, with a minimal investment of time, can be used to create more interactive and professional presentations for lectures, patient education, and marketing. Examples of advanced PowerPoint applications are presented in a stepwise manner to unveil the full power of PowerPoint. By incorporating these techniques, medical practitioners can easily personalize, customize, and enhance their PowerPoint presentations. Complications, pitfalls, and caveats are discussed to detour and prevent misadventures in digital presentations. Relevant Web sites are listed to further update, customize, and communicate PowerPoint techniques.

Augmented reality-assisted skull base surgery.

Science.gov (United States)

Cabrilo, I; Sarrafzadeh, A; Bijlenga, P; Landis, B N; Schaller, K

2014-12-01

Neuronavigation is widely considered as a valuable tool during skull base surgery. Advances in neuronavigation technology, with the integration of augmented reality, present advantages over traditional point-based neuronavigation. However, this development has not yet made its way into routine surgical practice, possibly due to a lack of acquaintance with these systems. In this report, we illustrate the usefulness and easy application of augmented reality-based neuronavigation through a case example of a patient with a clivus chordoma. We also demonstrate how augmented reality can help throughout all phases of a skull base procedure, from the verification of neuronavigation accuracy to intraoperative image-guidance. Copyright © 2014 Elsevier Masson SAS. All rights reserved.

Ethiopia - energy situation 1984. Aethiopien - Energiewirtschaft 1984

Energy Technology Data Exchange (ETDEWEB)

1985-11-01

The energy situation of Ethiopia is reviewed on the basis of relevant data. Remarks on the country's national and international energy policy are followed by an outline of trends in energy sources and electric power generation. Important figures are presented on external trade and the balance of payments. (UA).

Ethiopia - energy situation 1985. Aethiopien - Energiewirtschaft 1985

Energy Technology Data Exchange (ETDEWEB)

1986-10-01

The energy situation of Ethiopia is reviewed on the basis of relevant data. Data on the country's national energy policy are followed by an outline of trends in energy sources and electric power generation. Key figures are presented on the country's external trade and balance of payments.

An indoor augmented reality mobile application for simulation of building evacuation

Science.gov (United States)

Sharma, Sharad; Jerripothula, Shanmukha

2015-03-01

Augmented Reality enables people to remain connected with the physical environment they are in, and invites them to look at the world from new and alternative perspectives. There has been an increasing interest in emergency evacuation applications for mobile devices. Nearly all the smart phones these days are Wi-Fi and GPS enabled. In this paper, we propose a novel emergency evacuation system that will help people to safely evacuate a building in case of an emergency situation. It will further enhance knowledge and understanding of where the exits are in the building and safety evacuation procedures. We have applied mobile augmented reality (mobile AR) to create an application with Unity 3D gaming engine. We show how the mobile AR application is able to display a 3D model of the building and animation of people evacuation using markers and web camera. The system gives a visual representation of a building in 3D space, allowing people to see where exits are in the building through the use of a smart phone or tablets. Pilot studies were conducted with the system showing its partial success and demonstrated the effectiveness of the application in emergency evacuation. Our computer vision methods give good results when the markers are closer to the camera, but accuracy decreases when the markers are far away from the camera.

Cyclophosphamide augments antitumor immunity: studies in an autochthonous prostate cancer model.

Science.gov (United States)

Wada, Satoshi; Yoshimura, Kiyoshi; Hipkiss, Edward L; Harris, Tim J; Yen, Hung-Rong; Goldberg, Monica V; Grosso, Joseph F; Getnet, Derese; Demarzo, Angelo M; Netto, George J; Anders, Robert; Pardoll, Drew M; Drake, Charles G

2009-05-15

To study the immune response to prostate cancer, we developed an autochthonous animal model based on the transgenic adenocarcinoma of the mouse prostate (TRAMP) mouse in which spontaneously developing tumors express influenza hemagglutinin as a unique, tumor-associated antigen. Our prior studies in these animals showed immunologic tolerance to hemagglutinin, mirroring the clinical situation in patients with cancer who are generally nonresponsive to their disease. We used this physiologically relevant animal model to assess the immunomodulatory effects of cyclophosphamide when administered in combination with an allogeneic, cell-based granulocyte-macrophage colony-stimulating factor-secreting cancer immunotherapy. Through adoptive transfer of prostate/prostate cancer-specific CD8 T cells as well as through studies of the endogenous T-cell repertoire, we found that cyclophosphamide induced a marked augmentation of the antitumor immune response. This effect was strongly dependent on both the dose and the timing of cyclophosphamide administration. Mechanistic studies showed that immune augmentation by cyclophosphamide was associated with a transient depletion of regulatory T cells in the tumor draining lymph nodes but not in the peripheral circulation. Interestingly, we also noted effects on dendritic cell phenotype; low-dose cyclophosphamide was associated with increased expression of dendritic cell maturation markers. Taken together, these data clarify the dose, timing, and mechanism of action by which immunomodulatory cyclophosphamide can be translated to a clinical setting in a combinatorial cancer treatment strategy.

Determining the performance of a Diffuser Augmented Wind Turbine using a combined CFD/BEM method

Directory of Open Access Journals (Sweden)

Kesby Joss E.

2017-01-01

Full Text Available Traditionally, the optimisation of a Diffuser Augmented Wind Turbine has focused on maximising power output. However, due to the often less than ideal location of small-scale turbines, cut-in speed and starting time are of equal importance in maximising Annual Energy Production, which is the ultimate goal of any wind turbine design. This paper proposes a method of determining power output, cut-in speed and starting time using a combination of Computational Fluid Dynamics and Blade Element Momentum theory. The proposed method has been validated against published experimental data.

Power affects performance when the pressure is on: evidence for low-power threat and high-power lift.

Science.gov (United States)

Kang, Sonia K; Galinsky, Adam D; Kray, Laura J; Shirako, Aiwa

2015-05-01

The current research examines how power affects performance in pressure-filled contexts. We present low-power-threat and high-power-lift effects, whereby performance in high-stakes situations suffers or is enhanced depending on one's power; that is, the power inherent to a situational role can produce effects similar to stereotype threat and lift. Three negotiations experiments demonstrate that role-based power affects outcomes but only when the negotiation is diagnostic of ability and, therefore, pressure-filled. We link these outcomes conceptually to threat and lift effects by showing that (a) role power affects performance more strongly when the negotiation is diagnostic of ability and (b) underperformance disappears when the low-power negotiator has an opportunity to self-affirm. These results suggest that stereotype threat and lift effects may represent a more general phenomenon: When the stakes are raised high, relative power can act as either a toxic brew (stereotype/low-power threat) or a beneficial elixir (stereotype/high-power lift) for performance. © 2015 by the Society for Personality and Social Psychology, Inc.

Enhancing Education through Mobile Augmented Reality

Science.gov (United States)

Joan, D. R. Robert

2015-01-01

In this article, the author has discussed about the Mobile Augmented Reality and enhancing education through it. The aim of the present study was to give some general information about mobile augmented reality which helps to boost education. Purpose of the current study reveals the mobile networks which are used in the institution campus as well…

Augmented Reality as a Countermeasure for Sleep Deprivation.

Science.gov (United States)

Baumeister, James; Dorrlan, Jillian; Banks, Siobhan; Chatburn, Alex; Smith, Ross T; Carskadon, Mary A; Lushington, Kurt; Thomas, Bruce H

2016-04-01

Sleep deprivation is known to have serious deleterious effects on executive functioning and job performance. Augmented reality has an ability to place pertinent information at the fore, guiding visual focus and reducing instructional complexity. This paper presents a study to explore how spatial augmented reality instructions impact procedural task performance on sleep deprived users. The user study was conducted to examine performance on a procedural task at six time points over the course of a night of total sleep deprivation. Tasks were provided either by spatial augmented reality-based projections or on an adjacent monitor. The results indicate that participant errors significantly increased with the monitor condition when sleep deprived. The augmented reality condition exhibited a positive influence with participant errors and completion time having no significant increase when sleep deprived. The results of our study show that spatial augmented reality is an effective sleep deprivation countermeasure under laboratory conditions.

Initial Model of Social Acceptability for Human Augmentation Technologies

NARCIS (Netherlands)

Eghtebas, Chloe; Pay, Yun Suen; Väänänen, Kaisa; Pfeiffer, Ties; Meyer, Joachim; Lukosch, S.G.

2017-01-01

Academia and industry engage in major efforts to develop technologies for augmenting human senses and activities. Many of these technologies, such as augmented reality (AR) and virtual reality (VR) head mounted displays (HMD), haptic augmentation systems, and exoskeletons can be applied in numerous

Media-Augmented Exercise Machines

Science.gov (United States)

Krueger, T.

2002-01-01

Cardio-vascular exercise has been used to mitigate the muscle and cardiac atrophy associated with adaptation to micro-gravity environments. Several hours per day may be required. In confined spaces and long duration missions this kind of exercise is inevitably repetitive and rapidly becomes uninteresting. At the same time, there are pressures to accomplish as much as possible given the cost- per-hour for humans occupying orbiting or interplanetary. Media augmentation provides a the means to overlap activities in time by supplementing the exercise with social, recreational, training or collaborative activities and thereby reducing time pressures. In addition, the machine functions as an interface to a wide range of digital environments allowing for spatial variety in an otherwise confined environment. We hypothesize that the adoption of media augmented exercise machines will have a positive effect on psycho-social well-being on long duration missions. By organizing and supplementing exercise machines, data acquisition hardware, computers and displays into an interacting system this proposal increases functionality with limited additional mass. This paper reviews preliminary work on a project to augment exercise equipment in a manner that addresses these issues and at the same time opens possibilities for additional benefits. A testbed augmented exercise machine uses a specialty built cycle trainer as both input to a virtual environment and as an output device from it using spatialized sound, and visual displays, vibration transducers and variable resistance. The resulting interactivity increases a sense of engagement in the exercise, provides a rich experience of the digital environments. Activities in the virtual environment and accompanying physiological and psychological indicators may be correlated to track and evaluate the health of the crew.

Resource Management in Constrained Dynamic Situations

Science.gov (United States)

Seok, Jinwoo

Resource management is considered in this dissertation for systems with limited resources, possibly combined with other system constraints, in unpredictably dynamic environments. Resources may represent fuel, power, capabilities, energy, and so on. Resource management is important for many practical systems; usually, resources are limited, and their use must be optimized. Furthermore, systems are often constrained, and constraints must be satisfied for safe operation. Simplistic resource management can result in poor use of resources and failure of the system. Furthermore, many real-world situations involve dynamic environments. Many traditional problems are formulated based on the assumptions of given probabilities or perfect knowledge of future events. However, in many cases, the future is completely unknown, and information on or probabilities about future events are not available. In other words, we operate in unpredictably dynamic situations. Thus, a method is needed to handle dynamic situations without knowledge of the future, but few formal methods have been developed to address them. Thus, the goal is to design resource management methods for constrained systems, with limited resources, in unpredictably dynamic environments. To this end, resource management is organized hierarchically into two levels: 1) planning, and 2) control. In the planning level, the set of tasks to be performed is scheduled based on limited resources to maximize resource usage in unpredictably dynamic environments. In the control level, the system controller is designed to follow the schedule by considering all the system constraints for safe and efficient operation. Consequently, this dissertation is mainly divided into two parts: 1) planning level design, based on finite state machines, and 2) control level methods, based on model predictive control. We define a recomposable restricted finite state machine to handle limited resource situations and unpredictably dynamic environments

A new strategy for transient stability using augmented generator control and local dynamic braking

Energy Technology Data Exchange (ETDEWEB)

Dorsey, J; Jiang, H; Habetler, T [Georgia Inst. of Tech., Atlanta, GA (United States); Qu, Z [University of Central Florida, Orlando, FL (United States)

1994-12-31

A decentralized automatic control strategy for significantly improving the transient stability of a large power system is introduced. The strategy combines local dynamic braking and a straightforward augmentation of the existing turbine / governor control system that uses only local feedback. The brake resistor, which employs thick film, metal oxide technology, has no inductance and is of very low resistance, allowing its use during fault to show a generator`s acceleration. Simulation results using the 39 Bus New England system show that the strategy dramatically increases the global stability of a power system. (author) 15 refs., 7 figs., 1 tab.

Energy situation september 2002; Conjoncture energetique septembre 2002

Energy Technology Data Exchange (ETDEWEB)

NONE

2002-10-01

The monthly situation analysis in France is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Situational and Dispositional Factors as Antecedents of Ingratiatory Behaviors in Organizational Settings

Science.gov (United States)

Kacmar, K. Michele; Carlson, Dawn S.; Bratton, Virginia K.

2004-01-01

This study examined both situational and dispositional antecedents of four ingratiatory behaviors: other-enhancing, opinion conformity, favor rendering, and self-promotion. The two situational variables (i.e., role ambiguity and leader-member exchange) and the four dispositional variables (i.e., self-esteem, need for power, job involvement, and…

Augmented reality: dé nieuwe dimensie in de sport?

NARCIS (Netherlands)

Slender, Hans

2010-01-01

Volgens trendwatcher Justien Marseille de trend van 2010: augmented reality. Augmented reality is een techniek om met de computer gemaakte beelden toe te voegen aan de realiteit. Het Nederlandse Layar (layar.com) presenteerde zich vorig jaar vol trots als een unieke augmented reality browser, met

Augmented reality services

Directory of Open Access Journals (Sweden)

Tomáš Koubek

2013-01-01

Full Text Available We assume that one of the key reasons is in the difference between a standalone application and a web service. Both architectures have some advantages and disadvantages. The Standalone application (e.g. Nokia/OVI Maps provides the required functionality. From the user point of view, main asset of this “offline” approach is network connectivity independence. However, this kind of applications must be upgraded manually. Moreover, it is hard to get any data about the application usage because it requires additional actions from the user – data are usually acquired through conventional ways, such as email or web forms.The online service such as Google Maps (including its mobile application can offer the same functionality as the offline application. Nevertheless, a permanent connection to provider servers is necessary. This can be taken as a drawback. On the other hand, usage data collection is easier and can be done without the user intervention. The data collection provides a valuable analysis basis of the user habits and needs. This analysis is necessary for design of a complex “user” based solutions such as Google Now.Augmented reality applications are usually based on the first mentioned approach. In this article, we describe our model of augmented reality as a service and compare its features with standalone solutions. Further, other important key aspects for large emergence of augmented reality services in a mainstream market are discussed.

Recent Development of Augmented Reality in Surgery: A Review

Science.gov (United States)

Vávra, P.; Zonča, P.; Ihnát, P.; El-Gendi, A.

2017-01-01

Introduction The development augmented reality devices allow physicians to incorporate data visualization into diagnostic and treatment procedures to improve work efficiency, safety, and cost and to enhance surgical training. However, the awareness of possibilities of augmented reality is generally low. This review evaluates whether augmented reality can presently improve the results of surgical procedures. Methods We performed a review of available literature dating from 2010 to November 2016 by searching PubMed and Scopus using the terms “augmented reality” and “surgery.” Results. The initial search yielded 808 studies. After removing duplicates and including only journal articles, a total of 417 studies were identified. By reading of abstracts, 91 relevant studies were chosen to be included. 11 references were gathered by cross-referencing. A total of 102 studies were included in this review. Conclusions The present literature suggest an increasing interest of surgeons regarding employing augmented reality into surgery leading to improved safety and efficacy of surgical procedures. Many studies showed that the performance of newly devised augmented reality systems is comparable to traditional techniques. However, several problems need to be addressed before augmented reality is implemented into the routine practice. PMID:29065604

Recent Development of Augmented Reality in Surgery: A Review

Directory of Open Access Journals (Sweden)

P. Vávra

2017-01-01

Full Text Available Introduction. The development augmented reality devices allow physicians to incorporate data visualization into diagnostic and treatment procedures to improve work efficiency, safety, and cost and to enhance surgical training. However, the awareness of possibilities of augmented reality is generally low. This review evaluates whether augmented reality can presently improve the results of surgical procedures. Methods. We performed a review of available literature dating from 2010 to November 2016 by searching PubMed and Scopus using the terms “augmented reality” and “surgery.” Results. The initial search yielded 808 studies. After removing duplicates and including only journal articles, a total of 417 studies were identified. By reading of abstracts, 91 relevant studies were chosen to be included. 11 references were gathered by cross-referencing. A total of 102 studies were included in this review. Conclusions. The present literature suggest an increasing interest of surgeons regarding employing augmented reality into surgery leading to improved safety and efficacy of surgical procedures. Many studies showed that the performance of newly devised augmented reality systems is comparable to traditional techniques. However, several problems need to be addressed before augmented reality is implemented into the routine practice.

Detection of Nuclear Sources by UAV Teleoperation Using a Visuo-Haptic Augmented Reality Interface

Directory of Open Access Journals (Sweden)

Jacopo Aleotti

2017-09-01

Full Text Available A visuo-haptic augmented reality (VHAR interface is presented enabling an operator to teleoperate an unmanned aerial vehicle (UAV equipped with a custom CdZnTe-based spectroscopic gamma-ray detector in outdoor environments. The task is to localize nuclear radiation sources, whose location is unknown to the user, without the close exposure of the operator. The developed detector also enables identification of the localized nuclear sources. The aim of the VHAR interface is to increase the situation awareness of the operator. The user teleoperates the UAV using a 3DOF haptic device that provides an attractive force feedback around the location of the most intense detected radiation source. Moreover, a fixed camera on the ground observes the environment where the UAV is flying. A 3D augmented reality scene is displayed on a computer screen accessible to the operator. Multiple types of graphical overlays are shown, including sensor data acquired by the nuclear radiation detector, a virtual cursor that tracks the UAV and geographical information, such as buildings. Experiments performed in a real environment are reported using an intense nuclear source.

Current situation of the project finishing of the building of 3 and 4 block of the nuclear power plant Mochovce

International Nuclear Information System (INIS)

Niznan, S.

2005-01-01

In the contribution there is the basic information mentioned about history of building and the current situation at the finishing of the building of 3 and 4 block of the Nuclear Power Plant Mochovce with the use of project digitization. Further on the contribution shows what kinds of supporting material has been elaborated, what kind of decisions have been issued to the finishing of the building, way of financing and also the assumption of investment return under the defined conditions. An orientation time schedule of the finishing of the building and the crucial steps for its security are presented in the conclusion

Situation Aware Assessment of Regulating Power Need and Resource

DEFF Research Database (Denmark)

Heussen, Kai

2009-01-01

power plants, but have the capability to provide a number of ancillary services. It is envisioned that wind power may at times provide a certain share of system stabilization, but it must also be seen that this contribution is limited to only a part of the required functions and that it fluctuates...... with the available wind. The approach proposed in this paper uses a functional classification to sort out the control requirements of a power system with a high share of fluctuating renewable and distributed energy sources and aims to combine it with a structured quantitative assessment.......Distributed generation and renewable energy sources are both, new disturbance and new regulation resource. Which it is, depends to a large extend on the facilitation of control capabilities, that for example modern wind turbines can provide. Most renewable energy sources are quite unlike classical...

Age grouping to optimize augmentation success.

Science.gov (United States)

Gordon, Robert W

2010-05-01

This article has described the different age groups that present for noninvasive injectable lip and perioral augmentation, as well as the breakdown of 3 subgroups that present within the 4 general age groups. With the fundamental understanding of these presenting groups and subgroups, the practicing augmenter will be able to better treatment plan and educate the patient on realistic and optimal aesthetic outcomes.

An Integrated Agent Model Addressing Situation Awareness and Functional State in Decision Making

NARCIS (Netherlands)

Hoogendoorn, M.; van Lambalgen, R.M.; Treur, J.

2011-01-01

In this paper, an integrated agent model is introduced addressing mutually interacting Situation Awareness and Functional State dynamics in decision making. This shows how a human's functional state, more specific a human's exhaustion and power, can influence a human's situation awareness, and in

Augmented reality. Fundamentals and nuclear related applications

International Nuclear Information System (INIS)

Ishii, Hirotake

2010-01-01

In recent years, Augmented Reality (AR) has attracted considerable interest from both academia and industry. Virtual Reality enables users to interact only with virtual objects in a virtual environment, but AR enables users to interact with both virtual objects and real objects in the real world. This feature supports application of AR to various fields such as education, driving, entertainment, and navigation. Especially, by application of AR to support workers in nuclear power plants, it is expected that working time and human error can be decreased. However, many problems remain unsolved to apply AR to real fields. In this lecture note, fundamental knowledge of AR is presented first including the overview of elemental technologies to realize AR. Then various AR applications to nuclear fields are described. Finally, future prospects are given. (author)

Situation of Fukushima Dai-ichi power plant in Japan - June 1, 2011 status

International Nuclear Information System (INIS)

2011-01-01

This situation note is established according to the information gained on June 1, 2011 by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of the cores of reactors 1, 2 and 3 of the Fukushima I site (Dai-ichi) and of the different spent fuel pools is briefly presented as well as the actions in progress for the control of environmental radioactive releases and for the progressive recovery of the facilities control. (J.S.)

Situation of Fukushima Dai-ichi power plant in Japan - May 25, 2011 status

International Nuclear Information System (INIS)

2011-01-01

This situation note is established according to the information gained on May 25, 2011 by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of the cores of reactors 1, 2 and 3 of the Fukushima I site (Dai-ichi) and of the different spent fuel pools is briefly presented as well as the actions in progress for the control of environmental radioactive releases and for the progressive recovery of the facilities control. (J.S.)

Augmented REality Sandtables (ARESs) Impact on Learning

Science.gov (United States)

2016-07-01

ARL-CR-0803 ● JULY 2016 US Army Research Laboratory Augmented REality Sandtable’s (ARES’s) Impact on Learning by Tarah N......The use of augmented reality (AR) to supplement training tools, specifically sand tables, can produce highly effective systems at relatively low

Virtual and augmented reality for training on maintenance

International Nuclear Information System (INIS)

Gonzalez, F.

2001-01-01

This paper presents two projects focused to support training on maintenance using new technologies. Both projects aims at specifying. designing, developing, and demonstrating prototypes allowing computer guided maintenance of complex mechanical elements using Virtual Reality (VIRMAN) and Augmented Reality (STARMATE) techniques. VIRMAN project is dedicated to training course development on maintenance using Virtual Reality. It based in the animation of three dimension images for component assembly/de-assembly or equipment movements. STARMATE will rely on Augmented Reality techniques which is a growing area in virtual Reality research. The idea of Augmented Reality is to combine a real scene, viewed by the user, with a virtual scene generated by a computer augmenting the reality with additional information. (Author)

Feasibility of an Autism-Focused Augmented Reality Smartglasses System for Social Communication and Behavioral Coaching.

Science.gov (United States)

Liu, Runpeng; Salisbury, Joseph P; Vahabzadeh, Arshya; Sahin, Ned T

2017-01-01

Autism spectrum disorder (ASD) is a childhood-onset neurodevelopmental disorder with a rapidly rising prevalence, currently affecting 1 in 68 children, and over 3.5 million people in the United States. Current ASD interventions are primarily based on in-person behavioral therapies that are both costly and difficult to access. These interventions aim to address some of the fundamental deficits that clinically characterize ASD, including deficits in social communication, and the presence of stereotypies, and other autism-related behaviors. Current diagnostic and therapeutic approaches seldom rely on quantitative data measures of symptomatology, severity, or condition trajectory. Given the current situation, we report on the Brain Power System (BPS), a digital behavioral aid with quantitative data gathering and reporting features. The BPS includes customized smartglasses, providing targeted personalized coaching experiences through a family of gamified augmented-reality applications utilizing artificial intelligence. These applications provide children and adults with coaching for emotion recognition, face directed gaze, eye contact, and behavioral self-regulation. This preliminary case report, part of a larger set of upcoming research reports, explores the feasibility of the BPS to provide coaching in two boys with clinically diagnosed ASD, aged 8 and 9 years. The coaching intervention was found to be well tolerated and rated as being both engaging and fun. Both males could easily use the system, and no technical problems were noted. During the intervention, caregivers reported improved non-verbal communication, eye contact, and social engagement during the intervention. Both boys demonstrated decreased symptoms of ASD, as measured by the aberrant behavior checklist at 24-h post-intervention. Specifically, both cases demonstrated improvements in irritability, lethargy, stereotypy, hyperactivity/non-compliance, and inappropriate speech. Smartglasses using augmented

Performance augmentation with vortex generators: Design and testing for stall-regulated AWT-26 turbine

Energy Technology Data Exchange (ETDEWEB)

Griffin, D.A. [Advanced Wind Turbines Inc., Seattle, WA (United States)

1996-12-31

A study investigated the use of vortex generators (VGs) for performance augmentation of the stall-regulated AWT-26 wind turbine. Based on wind-tunnel results and analysis, a VG array was designed for and tested on the AWT-26 prototype, designated Pt. Performance and loads data were measured for P1, both with and without VGs installed. The turbine performance with VGs met most of the design requirements; power output was increased at moderate wind speeds with a minimal effect on peak power. However, VG drag penalties caused a loss in power output for low wind speeds, such that performance with VGs resulted in a net decrease in AEP for wind speed sites up to 8.5 m/s. 8 refs., 8 figs., 3 tabs.

ARVIKA - Augmented Reality in Entwicklung, Produktion und Service: Anbindung eines mobilen Augmented Reality Systems an eine stationäre Infrastruktur. Schlussbericht

OpenAIRE

Wichert, R.; Balfanz, D.

2003-01-01

ARVIKA uses augmented reality (AR) technologies to research and create a user-oriented and system-driven support of operation procedures. It focuses on the development, production, and service of complex technical products and systems. Augmented-reality technologies improve working environments by merging real objects with computer-generated virtual objects to allow for detailed engineering and processing instructions. Augmented reality is a novel approach to the interaction between human and...

Development situation about the Canadian CANDU Nuclear Power Generating Stations

Energy Technology Data Exchange (ETDEWEB)

Jeon, Yu Mi; Kim, Yong Hee; Park, Joo Hwan

2009-07-15

The CANDU reactor is the most versatile commercial power reactor in the world. The acronym 'CANDU', a registered trademark of Atomic Energy of Canada Limited, stands for 'CANada Deuterium Uranium'. CANDU uses heavy water as moderator and uranium (originally, natural uranium) as fuel. All current power reactors in Canada are of the CANDU type. Canada exports CANDU type reactor in abroad. CANDU type is used as the nuclear power plants to produce electrical. Today, there are 41 CANDU reactors in use around the world, and the design has continuously evolved to maintain into unique technology and performance. The CANDU-6 power reactor offers a combination of proven, superior and state-of-the-art technology. CANDU-6 was designed specifically for electricity production, unlike other major reactor types. One of its characteristics is a very high operating and fuel efficiency. Canada Nuclear Power Generating Stations were succeeded in a commercial reactor of which the successful application of heavy water reactor, natural uranium method and that on-power fuelling could be achieved. It was achieved through the joint development of a major project by strong support of the federal government, public utilities and private enterprises. The potential for customization to any country's needs, with competitive development and within any level of domestic industrial infrastructure, gives CANDU technology strategic importance in the 21st century.

Development situation about the Canadian CANDU Nuclear Power Generating Stations

International Nuclear Information System (INIS)

Jeon, Yu Mi; Kim, Yong Hee; Park, Joo Hwan

2009-07-01

The CANDU reactor is the most versatile commercial power reactor in the world. The acronym 'CANDU', a registered trademark of Atomic Energy of Canada Limited, stands for 'CANada Deuterium Uranium'. CANDU uses heavy water as moderator and uranium (originally, natural uranium) as fuel. All current power reactors in Canada are of the CANDU type. Canada exports CANDU type reactor in abroad. CANDU type is used as the nuclear power plants to produce electrical. Today, there are 41 CANDU reactors in use around the world, and the design has continuously evolved to maintain into unique technology and performance. The CANDU-6 power reactor offers a combination of proven, superior and state-of-the-art technology. CANDU-6 was designed specifically for electricity production, unlike other major reactor types. One of its characteristics is a very high operating and fuel efficiency. Canada Nuclear Power Generating Stations were succeeded in a commercial reactor of which the successful application of heavy water reactor, natural uranium method and that on-power fuelling could be achieved. It was achieved through the joint development of a major project by strong support of the federal government, public utilities and private enterprises. The potential for customization to any country's needs, with competitive development and within any level of domestic industrial infrastructure, gives CANDU technology strategic importance in the 21st century

Myanmar. Energy situation 1992/93. Myanmar. Energiewirtschaft 1992/93

Energy Technology Data Exchange (ETDEWEB)

1993-12-01

The energy situation of Myanmar is reviewed on the basis of selected data. This includes statistics on the country's national energy policy, energy sources, and electric power generation. Data are presented on the state's financial budget. (UA)

The trend of energy and power situation in the world (2)

International Nuclear Information System (INIS)

2011-01-01

It consists of four chapters such as nuclear power generation in the world, development of nuclear power and risk deduction policy at market liberalization, the trend of nuclear power generation in each country and the trend of renewable energy in each country. The nuclear power generation in the world was 432 units in operation and 66 units under construction and 38,916 million kW of total generating capacity, a decrease of 129 million kW compared with the previous year. Asian area and old U.S.S.R are building many units. The trends of nuclear power generation of USA, England, France, German, Sweden, Russia, East Europe, Korea, and China are stated. The renewable Energy of USA, England, France, German, and China are reported. The nuclear power plants in the world, risk deduction policy and raising capital for development of nuclear power, the nuclear power plants in operation in China, national renewable energy action plan for the United Kingdom, and the share of renewable energy in each field in German are illustrated. (S.Y.)

An experimental test of alternative population augmentation scenarios.

Science.gov (United States)

Kronenberger, John A; Gerberich, Jill C; Fitzpatrick, Sarah W; Broder, E Dale; Angeloni, Lisa M; Funk, W Chris

2018-01-19

Human land use is fragmenting habitats worldwide and inhibiting dispersal among previously connected populations of organisms, often leading to inbreeding depression and reduced evolutionary potential in the face of rapid environmental change. To combat this augmentation of isolated populations with immigrants is sometimes used to facilitate demographic and genetic rescue. Augmentation with immigrants that are genetically and adaptively similar to the target population effectively increases population fitness, but if immigrants are very genetically or adaptively divergent, augmentation can lead to outbreeding depression. Despite well-cited guidelines for the best practice selection of immigrant sources, often only highly divergent populations remain, and experimental tests of these riskier augmentation scenarios are essentially nonexistent. We conducted a mesocosm experiment with Trinidadian guppies (Poecilia reticulata) to test the multigenerational demographic and genetic effects of augmenting 2 target populations with 3 types of divergent immigrants. We found no evidence of demographic rescue, but we did observe genetic rescue in one population. Divergent immigrant treatments tended to maintain greater genetic diversity, abundance, and hybrid fitness than controls that received immigrants from the source used to seed the mesocosms. In the second population, divergent immigrants had a slightly negative effect in one treatment, and the benefits of augmentation were less apparent overall, likely because this population started with higher genetic diversity and a lower reproductive rate that limited genetic admixture. Our results add to a growing consensus that gene flow can increase population fitness even when immigrants are more highly divergent and may help reduce uncertainty about the use of augmentation in conservation. © 2018 Society for Conservation Biology.

Analysis of the current cost situation of wind power in Germany; Untersuchungen der aktuellen Kostensituation der Windenergienutzung in Deutschland

Energy Technology Data Exchange (ETDEWEB)

Rehfeldt, K. [Deutsches Windenergie-Inst. Sucursal en Espana, Pamplona (Spain); Schwenk, B. [InnoVent GmbH, Varel (Germany)

2000-07-01

Against the background of the discussion concerning the Reimbursement Act (StrEG) and the draft Renewable Energy Sources Act (EEG), the Bundesverband Windenergie e.V. (BWE) asked the Deutsches Windenergie-Institut (DEWI) to investigate the current cost situation of wind power in Germany. This involved a statistics of wind power generation cost over a period of 20 years. The data were obtained from wind power system operators, technical experts, producers of wind power systems and insurance companies. It was found that especially the cost of component replacement was higher than expected, so that long component life must be one of the main goals in the further development of wind power systems. According to the technical experts, component life today is much less than the rated life of 20 years. [German] Vor dem Hintergrund der Diskussion um das Stromeinspeisegesetz (StrEG) bzw. des Neuentwurfs zum Erneuerbare-Energien-Gesetz (EEG) wurde das Deutsche Windenergie-Institut (DEWI) vom Bundesverband Windenergie e.V. (BWE) beauftragt, eine Studie ueber die aktuelle Kostensituation in Deutschland zu erarbeiten. Erstmals wurden hierbei Stromerzeugungskosten aus Windenergieanlagen (WEA) ueber einen Zeitraum von 20 Jahren ermittelt. Hierbei wurden Umfrageergebnisse von Betreibern von WEA, technischen Sachverstaendigen sowie von Herstellern von WEA und Versicherungsgesellschaften verwendet, um belastbare Aussagen ueber Betriebskosten und notwendige Ersatzinvestitionen zu erhalten. Insbesondere die Aussagen ueber notwendige Ersatzinvestitionen durch die technischen Sachverstaendigen waren hoeher als erwartet, so dass es in Zukunft Ziel sein muss, insbesondere bei der Weiterentwicklung von WEA auf wesentlich laengere Lebensdauern der Bauteilkomponenten von WEA zu draengen. Nach Aussage der technischen Sachverstaendigen liegen bisher die Lebensdauern wesentlicher Bauteile der WEA, wie Rotor, Bremssystem, Pitchregelung usw., weit unter der kalkulierten Lebensdauer von 20 Jahren

Movement augmentation to evaluate human control of locomotor stability.

Science.gov (United States)

Brown, Geoffrey; Wu, Mengnan Mary; Huang, Felix C; Gordon, Keith E

2017-07-01

Controlling center of mass (COM) position and velocity within a dynamic base of support is essential for gait stability. This skill is often compromised following neurologic injury, creating a need to develop effective interventions to enhance gait stability. A movement augmentation paradigm applied to walking could potentially be used to improve control of COM dynamics. We have developed a cable robot system, the Agility Trainer, to apply continuous frontal-plane forces to the pelvis during treadmill walking. This cable robot system uses a set of series elastic actuators powered by linear motors to create bilateral forces. Here we use the Agility Trainer to create a negative viscosity force field proportional to the subject's lateral velocity. Two healthy young subjects performed two 10-minute walking trials, Baseline and Negative Viscosity. During the first minute of walking in the Negative Viscosity field, participants' lateral COM motion became less controlled when compared to the rhythmic sinusoidal motion observed during Baseline walking. By the 10th minute of walking in the Negative Viscosity field the participants had adapted their gait patterns, decreasing their variation in peak lateral COM speed each stride. These results demonstrate that it is feasible to use the Agility Trainer to apply a movement augmentation paradigm to human walking.

Augmented reality for industrial robot programmers: Workload analysis for task-based, augmented reality-supported robot control

OpenAIRE

Stadler, S.; Kain, K.; Giuliani, M.; Mirnig, N.; Stollnberger, G.; Tscheligi, M. ed

2016-01-01

Augmented reality (AR) can serve as a tool to provide helpful information in a direct way to industrial robot programmers throughout the teaching process. It seems obvious that AR support eases the programming process and increases the programmer's productivity and programming accuracy. However, additional information can also potentially increase the programmer's perceived workload. To explore the impact of augmented reality on robot teaching, as a first step we have chosen a Sphero robot co...

Analysis of Mental Workload in Online Shopping: Are Augmented and Virtual Reality Consistent?

Science.gov (United States)

Zhao, Xiaojun; Shi, Changxiu; You, Xuqun; Zong, Chenming

2017-01-01

A market research company (Nielsen) reported that consumers in the Asia-Pacific region have become the most active group in online shopping. Focusing on augmented reality (AR), which is one of three major techniques used to change the method of shopping in the future, this study used a mixed design to discuss the influences of the method of online shopping, user gender, cognitive style, product value, and sensory channel on mental workload in virtual reality (VR) and AR situations. The results showed that males' mental workloads were significantly higher than females'. For males, high-value products' mental workload was significantly higher than that of low-value products. In the VR situation, the visual mental workload of field-independent and field-dependent consumers showed a significant difference, but the difference was reduced under audio-visual conditions. In the AR situation, the visual mental workload of field-independent and field-dependent consumers showed a significant difference, but the difference increased under audio-visual conditions. This study provided a psychological study of online shopping with AR and VR technology with applications in the future. Based on the perspective of embodied cognition, AR online shopping may be potential focus of research and market application. For the future design of online shopping platforms and the updating of user experience, this study provides a reference.

Analysis of Mental Workload in Online Shopping: Are Augmented and Virtual Reality Consistent?

Science.gov (United States)

Zhao, Xiaojun; Shi, Changxiu; You, Xuqun; Zong, Chenming

2017-01-01

A market research company (Nielsen) reported that consumers in the Asia-Pacific region have become the most active group in online shopping. Focusing on augmented reality (AR), which is one of three major techniques used to change the method of shopping in the future, this study used a mixed design to discuss the influences of the method of online shopping, user gender, cognitive style, product value, and sensory channel on mental workload in virtual reality (VR) and AR situations. The results showed that males’ mental workloads were significantly higher than females’. For males, high-value products’ mental workload was significantly higher than that of low-value products. In the VR situation, the visual mental workload of field-independent and field-dependent consumers showed a significant difference, but the difference was reduced under audio–visual conditions. In the AR situation, the visual mental workload of field-independent and field-dependent consumers showed a significant difference, but the difference increased under audio–visual conditions. This study provided a psychological study of online shopping with AR and VR technology with applications in the future. Based on the perspective of embodied cognition, AR online shopping may be potential focus of research and market application. For the future design of online shopping platforms and the updating of user experience, this study provides a reference. PMID:28184207

Energy situation August 2005; Conjoncture energetique aout 2005

Energy Technology Data Exchange (ETDEWEB)

NONE

2005-09-15

The monthly energy situation analysis in France at August 2005 is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Energy situation september 2005; Conjoncture energetique septembre 2005

Energy Technology Data Exchange (ETDEWEB)

NONE

2005-10-15

The monthly energy situation analysis in France at september 2005, is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Energy situation, January 2006; Conjoncture energetique, janvier 2006

Energy Technology Data Exchange (ETDEWEB)

NONE

2006-03-15

The monthly energy situation analysis in France, at January 2006, is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

Who’s That Girl? Handheld Augmented Reality for Printed Photo Books

OpenAIRE

Henze , Niels; Boll , Susanne

2011-01-01

Part 1: Long and Short Papers; International audience; Augmented reality on mobile phones has recently made major progress. Lightweight, markerless object recognition and tracking makes handheld Augmented Reality feasible for new application domains. As this field is technology driven the interface design has mostly been neglected. In this paper we investigate visualization techniques for augmenting printed documents using handheld Augmented Reality. We selected the augmentation of printed ph...

Energy supply, nuclear power, and the international energy situation

International Nuclear Information System (INIS)

Pierer, H. von

1991-01-01

The Chernobyl accident has greatly intensified the readiness for international cooperation on problems of reactor safety and for exchanges of operating experience. That accident was more than a regional event. If all psychological and political consequences are taken into account, its international significance is apparent. In principle, it demonstrated not the lack of safety of nuclear power plants generally, but rather that of the Soviet RBMK reactor line, which would not have been licensed in any Western country because of its inherent unsafety. In the long run, the worldwide acceptance of nuclear power can be regained and stabilized only by an open dialog and by international exchanges of experience. The pronounced growth of the world's population requires energy policy to think beyond national frontiers. The rising energy requirement permits of no other decision than to exploit all technically feasible and economically viable as well as ecologically tolerable sources of energy. This includes nuclear power as well as solar energy. (orig.) [de

Towards an interactive medical system by augmented reality

OpenAIRE

Khawla Ben Abderrahim; Mohamed Kallel; M.S. Bouhlel

2013-01-01

Augmented reality is a computer field that progresses rapidly. Its principle is to mix the real world and the virtual world. Many applications already use augmented reality, particularly the medical field. Medical image allows doctors to make diagnosis of the patient. This diagnosis allows him to make the best decision without committing professional mistakes that can cause problems. Hence the idea of integrating augmented reality with medical image analysis to help the doctor to make the bes...

Probabilistic safety analysis of DC power supply requirements for nuclear power plants. Technical report

International Nuclear Information System (INIS)

Baranowsky, P.W.; Kolaczkowski, A.M.; Fedele, M.A.

1981-04-01

A probabilistic safety assessment was performed as part of the Nuclear Regulatory Commission generic safety task A-30, Adequacy of Safety Related DC Power Supplies. Event and fault tree analysis techniques were used to determine the relative contribution of DC power related accident sequences to the total core damage probability due to shutdown cooling failures. It was found that a potentially large DC power contribution could be substantially reduced by augmenting the minimum design and operational requirements. Recommendations included (1) requiring DC power divisional independence, (2) improved test, maintenance, and surveillance, and (3) requiring core cooling capability be maintained following the loss of one DC power bus and a single failure in another system

[Display technologies for augmented reality in medical applications].

Science.gov (United States)

Eck, Ulrich; Winkler, Alexander

2018-04-01

One of the main challenges for modern surgery is the effective use of the many available imaging modalities and diagnostic methods. Augmented reality systems can be used in the future to blend patient and planning information into the view of surgeons, which can improve the efficiency and safety of interventions. In this article we present five visualization methods to integrate augmented reality displays into medical procedures and the advantages and disadvantages are explained. Based on an extensive literature review the various existing approaches for integration of augmented reality displays into medical procedures are divided into five categories and the most important research results for each approach are presented. A large number of mixed and augmented reality solutions for medical interventions have been developed as research prototypes; however, only very few systems have been tested on patients. In order to integrate mixed and augmented reality displays into medical practice, highly specialized solutions need to be developed. Such systems must comply with the requirements with respect to accuracy, fidelity, ergonomics and seamless integration into the surgical workflow.

Determination of student opinions in augmented reality

Directory of Open Access Journals (Sweden)

Huseyin Bicen

2016-11-01

Full Text Available The rapid development of the new technology has changed classroom teaching methods and tools in a positive way. This study investigated the classroom learning with augmented reality and the impact of student opinions. 97 volunteer undergraduate students took part in this study. Results included data in the form of frequencies, percentages and descriptive statistics. The results show that, with gamification methods, augmented reality content affected students’ opinions in a positive way. When QR codes are used in the classroom, students feel independent from classroom materials and can access various resources. Moreover, students think that, when augmented reality in the classroom is used, education is more enjoyable.

Normative Data for Interpreting the BREAST-Q: Augmentation

Science.gov (United States)

Mundy, Lily R.; Homa, Karen; Klassen, Anne F.; Pusic, Andrea L.; Kerrigan, Carolyn L.

2016-01-01

Background The BREAST-Q is a rigorously developed, well-validated, patient-reported outcome (PRO) instrument with a module designed for evaluating breast augmentation outcomes. However, there are no published normative BREAST-Q scores, limiting interpretation. Methods Normative data were generated for the BREAST-Q Augmentation Module via the Army of Women (AOW), an online community of women (with and without breast cancer) engaged in breast-cancer related research. Members were recruited via email, with women 18 years or older without a history of breast cancer or breast surgery invited to participate. Descriptive statistics and a linear multivariate regression were performed. A separate analysis compared normative scores to findings from previously published BREAST-Q augmentation studies. Results The preoperative BREAST-Q Augmentation Module was completed by 1,211 women. Mean age was 54 ±24 years, mean body mass index (BMI) was 27 ±6, and 39% (n=467) had a bra cup size ≥D. Mean scores were Satisfaction with Breasts (54 ±19), Psychosocial Well-being (66 ±20), Sexual Well-being (49 ±20), and Physical Well-being (86 ±15). Women with a BMI of 30 or greater and bra cup size D or greater had lower scores. In comparison to AOW scores, published BREAST-Q augmentation scores were lower before and higher after surgery for all scales except Physical Well-being. Conclusions The AOW normative data represent breast-related satisfaction and well-being in woman not actively seeking breast augmentation. This data may be used as normative comparison values for those seeking and undergoing surgery as we did, demonstrating the value of breast augmentation in this patient population. PMID:28350657

Elecnuc. Nuclear power plants worldwide

International Nuclear Information System (INIS)

1998-01-01

This small folder presents a digest of some useful information concerning the nuclear power plants worldwide and the situation of nuclear industry at the end of 1997: power production of nuclear origin, distribution of reactor types, number of installed units, evolution and prediction of reactor orders, connections to the grid and decommissioning, worldwide development of nuclear power, evolution of power production of nuclear origin, the installed power per reactor type, market shares and exports of the main nuclear engineering companies, power plants constructions and orders situation, evolution of reactors performances during the last 10 years, know-how and development of nuclear safety, the remarkable facts of 1997, the future of nuclear power and the energy policy trends. (J.S.)

[Association between oxytocin augmentation intervals and the risk of postpartum haemorrhage].

Science.gov (United States)

Loscul, C; Chantry, A-A; Caubit, L; Deneux-Tharaux, C; Goffinet, F; Le Ray, C

2016-09-01

To study the association between the duration of oxytocin augmentation intervals and the risk of postpartum haemorrhage (PPH) among primiparous women in spontaneous labour. Retrospective cohort including primiparous women in spontaneous labour who received oxytocin during labour (n=454). Oxytocin augmentation intervals were dichotomized in intervalsoxytocin augmentation intervals. The association between oxytocin augmentation intervals and PPH was analyzed using univariate and multivariate analysis. Oxytocin augmentation intervals were shorter than 20minutes for 43.8% of the study population. The rate of PPH was higher (9.1% vs 3.5%; P=0.014), and the use of sulprostone was more frequent (6.5% vs 3.5%; P=0.013) if oxytocin augmentation intervals were shorter than 20minutes in comparison with intervals≥20minutes. The association between oxytocin augmentation intervals and PPH remains significant after adjustment on other PPH risk factors (adjusted OR=3.48, 95% CI [1.45-8.34]). The rate of adverse neonatal issue, defined by arterial pH at birth≤7.10 and/or 5minutes score d'Apgar≤7, was higher if oxytocin augmentation intervals wereoxytocin with augmentation intervals shorter than 20minutes. Copyright © 2016. Published by Elsevier Masson SAS.

Spatial augmented reality merging real and virtual worlds

CERN Document Server

Bimber, Oliver

2005-01-01

Like virtual reality, augmented reality is becoming an emerging platform in new application areas for museums, edutainment, home entertainment, research, industry, and the art communities using novel approaches which have taken augmented reality beyond traditional eye-worn or hand-held displays. In this book, the authors discuss spatial augmented reality approaches that exploit optical elements, video projectors, holograms, radio frequency tags, and tracking technology, as well as interactive rendering algorithms and calibration techniques in order to embed synthetic supplements into the real

Panel: How relevant are the developments in the USA and their causes to the future situation of nuclear power in the Federal Republic of Germany

Energy Technology Data Exchange (ETDEWEB)

Barthelt, K; Kraemer, H; Schill, H; Mueller, W D; Radtke, G

1984-01-01

Recently the question has been increasingly discussed not only in the public but also among experts, whether nuclear energy still has its economic lead over other sources of energy and whether it will be able to keep it in the future in order to fulfil the expectations which have been placed in it. One important issue in this discussion is the fact that no new nuclear power plant has been ordered in the USA for the past five years. On the contrary, a considerable number of nuclear power plants already ordered or under construction have been postponed until an indefinite period of time or have been canceled altogether. Will this development have an effect on the Federal Republic of Germany with the ''usual'' time lag. Or is this a very special American situation. On this subject the journal ''atomwirtschaft'' organizes a colloquium in Duesseldorf on October 26, 1983 under the title ''Will nuclear energy remain economic. US-cancellations - a warning sign.'' After an address on principles a group of experts discusses the fact how relevant the developments in the USA and their causes are to the future situation of nuclear energy in the Federal Republic of Germany.

The today situation and the nuclear sector perspectives in Usa; La situation actuelle et les perspectives du secteur nucleaire aux Etats-Unis

Energy Technology Data Exchange (ETDEWEB)

NONE

2006-07-01

In this analysis the author details and discusses the nuclear energy situation in the Usa: the park and the electric power production, the nuclear safety and the radiation protection, the licenses prolongation, the power increase, the regulation relative to the construction of new reactors, the combined construction permit and operating license, the uncertainties on the Yucca Mountain storage site and the Global Nuclear Energy Partnership initiative, the 2006 perspectives and the IV generation reactors. (A.L.B.)

Facial skeletal augmentation using hydroxyapatite cement.

Science.gov (United States)

Shindo, M L; Costantino, P D; Friedman, C D; Chow, L C

1993-02-01

This study investigates the use of a new calcium phosphate cement, which sets to solid, microporous hydroxyapatite, for facial bone augmentation. In six dogs, the supraorbital ridges were augmented bilaterally with this hydroxyapatite cement. On one side, the hydroxyapatite cement was placed directly onto the bone within a subperiosteal pocket. On the opposite side, the cement was contained within a collagen membrane tubule and then inserted into a subperiosteal pocket. The use of collagen tubules facilitated easy, precise placement of the cement. All implants maintained their original augmented height throughout the duration of the study. They were well tolerated without extrusion or migration, and there was no significant sustained inflammatory response. Histologic studies, performed at 3, 6, and 9 months revealed that when the cement was placed directly onto bone, progressive replacement of the implant by bone (osseointegration of the hydroxyapatite with the underlying bone) without a loss of volume was observed. In contrast, when the cement-collagen tubule combination was inserted, primarily a fibrous union was noted. Despite such fibrous union, the hydroxyapatite-collagen implant solidly bonded to the underlying bone, and no implant resorption was observed. Hydroxyapatite cement can be used successfully for the experimental augmentation of the craniofacial skeleton and may be applicable for such uses in humans.

Novel Augmentation Strategies in Major Depression

DEFF Research Database (Denmark)

Martiny, Klaus

2017-01-01

open psychiatric wards. Only a few patients were re-cruited through advertisements (in the PEMF and Chronos studies). Inclusion criteria Inclusion criteria were major depression according to the DSM-IV, including a depressive episode as part of a bipolar disorder. For the PEMF study, treatment...... The results from the Pindolol study showed that pindolol did not augment the effect of venlafaxine for the whole sample. However, for those patients classified as slow metabolizers, based on their O-desmethylvenlafaxine/venlafaxine ratio (ODV/V), pindolol did augment the antidepressant effect. For patients...... classified as fast metabolizers, pindolol worsened the outcome. This interaction between ODV/V ratio and treatment group was statistically significant (p = 0.01). Results from the PEMF study The results from the PEMF Study showed that treatment with active versus sham PEMF augmented the effect of the ongoing...

Situation of Fukushima Dai-ichi power plant in Japan - May 25, 2011 status; Situation de la centrale nucleaire de Fukushima Dai-ichi au Japon - Point de situation du 25 mai 2011

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on May 25, 2011 by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of the cores of reactors 1, 2 and 3 of the Fukushima I site (Dai-ichi) and of the different spent fuel pools is briefly presented as well as the actions in progress for the control of environmental radioactive releases and for the progressive recovery of the facilities control. (J.S.)

Energy situation and perspectives of using solar energy in Crimea

International Nuclear Information System (INIS)

Stoyanova, I.I.; Mashkara, O.G.; Vikhorev, Yu.A.; Sokolovskaya, N.I.

1997-01-01

The article presents the talk on the energy situation and perspectives of the use of solar energy in Crimea, Ukraine, given at the International Workshop on applied solar energy held in Tashkent(Uzbekistan) in June 1997. The main use of solar energy is solar energy heating systems developed and produced in Crimea. The project of 100 MWt solar power plant is proposed for construction in Crimea and will improve ecological situation in resort area. (A.A.D.)

Nuclear facilities situation in Japan after the major earthquake of March 11, 2011. March 23, 2011, 6:00 AM status; Situation des installations nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 23 mars 2011 a 06 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 23, 2011, at 6:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear facilities situation in Japan after the major earthquake of March 11, 2011. March 22, 2011, 6:00 AM status; Situation des installations nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 22 mars 2011 a 06 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 22, 2011, at 6:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear facilities situation in Japan after the major earthquake of March 11, 2011. March 24, 2011, 8:00 AM status; Situation des installations nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 24 mars 2011 a 08 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 24, 2011, at 8:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear reactors situation in Japan after the major earthquake of March 11, 2011. March 20, 2011, 6:00 AM status; Situation des reacteurs nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 20 mars 2011 a 06 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 20, 2011, at 6:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear reactors situation in Japan after the major earthquake of March 11, 2011. March 18, 2011, 2:00 PM status; Situation des reacteurs nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 18 mars 2011 a 14 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 18, 2011, at 2:00 PM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear facilities situation in Japan after the major earthquake of March 11, 2011. March 21, 2011, 3:00 PM status; Situation des installations nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 21 mars 2011 a 15 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 21, 2011, at 3:00 PM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear facilities situation in Japan after the major earthquake of March 11, 2011. March 25, 2011, 8:00 AM status; Situation des installations nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 25 mars a 08h00

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 25, 2011, at 8:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear reactors situation in Japan after the major earthquake of March 11, 2011. March 17, 2011, 6:00 AM status; Situation des reacteurs nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 17 mars 2011 a 06 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 17, 2011, at 6:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear reactors situation in Japan after the major earthquake of March 11, 2011. March 17, 2011, 3:00 PM status; Situation des reacteurs nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 17 mars 2011 a 15 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 17, 2011, at 3:00 PM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear reactors situation in Japan after the major earthquake of March 11, 2011. March 19, 2011, 6:00 AM status; Situation des reacteurs nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 19 mars 2011 a 06 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 19, 2011, at 6:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear reactors situation in Japan after the major earthquake of March 11, 2011. March 16, 2011, 7:00 PM status; Situation des reacteurs nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 16 mars 2011 a 19 heures

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 16, 2011, at 7:00 PM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Preclinical characterization and safety of a novel hydrogel for augmenting dural repair

International Nuclear Information System (INIS)

Strong, Michael J; Carnahan, Michael A; D’Alessio, Keith; Butlin, Jared D G; Butt, Mark T; Asher, Anthony L

2015-01-01

Cerebrospinal fluid (CSF) leakage is a potentially serious complication in surgical procedures involving opening of the dura mater. Although several materials have been developed to help achieve watertight dural closures, CSF leakages persist. The goal of this study was to evaluate the performance of a novel hydrogel designed to provide augmentation to standard methods of dural repair. Performance measures such as polymerization time, dimensional swelling, burst strength, and elasticity were examined in laboratory situations. Additionally, biocompatibility in an in vivo rat model was examined. The results demonstrate that this novel hydrogel has superior mechanical strength and tissue adherence with enhanced flexibility, reduced swelling, and quicker set time compared with existing hydrogel dural sealants approved for intra-cranial use. Furthermore, biocompatibility studies demonstrate that this compound is both non-toxic and non-immunogenic. (paper)

Evaluation of Risks Related To Russian Power Grid Companies by Foreign Investors

Directory of Open Access Journals (Sweden)

Daria L. Val'kova

2016-01-01

Full Text Available The article focuses on the impact of the current crisis on evaluation of risks related to Russian power grid companies by foreign investors as well as on prospects of raising foreign capital. The current situation resulted in a considerable deterioration of investment climate in Russia as well as in aggravation of industry-specific problems. Inflation growth, devaluation of the national currency, GDP decrease, drop in electricity consumption and the crisis in the banking sector negatively impact the investment profile of the country. This leads to increased risk premium for foreign capital investments in any type of Russian assets. At the same time industry-specific problems augmented as well. Those are primarily lack of transparency in regulation, which is subject to constant changes, growth in overdue receivables, limited access to modern technologies. All of the above had a considerable impact on the perception of Russian risks by international investors. A comprehensive approach is needed to improve the investment climate in the country and this would be largely defined by the general macroeconomic development of the Russian Federation and relations with other states. Consistent strategy and integrated actions of the Government and respective Ministries are of particular importance. As for the industry-specific factors, transparent and well-balanced long-term tariff system is the key condition for sustainable improvement of the situation in the sector, according to the major industry participants and leading experts. Thus, the article highlights changes in investor perception of the Russian power grid sector as well as relative impact on the industry development prospects. This analysis is the basis for further elaboration of recommendations regarding easing off of the crisis impact on the power grid companies as well as for assessment of prospects of meeting strategic industry development objectives.

Sensor-augmented pump therapy at 36 months

DEFF Research Database (Denmark)

Schmidt, Signe; Nørgaard, Kirsten

2012-01-01

This follow-up study investigates the metabolic and psychosocial effects of sensor-augmented pump (SAP) therapy in adults with type 1 diabetes 36 months after therapy start.......This follow-up study investigates the metabolic and psychosocial effects of sensor-augmented pump (SAP) therapy in adults with type 1 diabetes 36 months after therapy start....

Augmented Reality, Phase I

Data.gov (United States)

National Aeronautics and Space Administration — Augmented Reality systems come with many benefits derived by co-locating information with a user's environment through the use of one or more output modalities such...

Cosmetic tourism for breast augmentation: a systematic review.

Science.gov (United States)

Brightman, Louise; Ng, Sze; Ahern, Susannah; Cooter, Rodney; Hopper, Ingrid

2017-12-03

The medical tourism industry, and in particular cosmetic tourism for breast augmentation, is becoming an increasingly popular global phenomenon. The objective of this study is to determine the extent of medical literature and the patient risk profiles associated with cosmetic tourism for breast augmentation both locally and abroad. OVID MEDLINE, OVID Embase, Cochrane Central and Proquest electronic databases. The search was conducted through to April 2017. Studies pertaining entirely or partly to cosmetic tourism for breast augmentation were considered for inclusion. Exclusion criteria included non-English articles, studies relating to non-cosmetic or non-implant breast augmentation, and studies that did not separately report on findings associated with breast augmentation abroad. We identified 17 observational studies. Common destinations included Europe, South America and South East Asia. Infectious complications were common. Wound dehiscence and aesthetic dissatisfaction also featured. Catastrophic outcomes such as sepsis, intubation and ventilation, radical bilateral mastectomy, irreversible hypoxic brain injury and death were also reported. There were expectations that home country health systems would treat complications and provide non-medically indicated revision procedures. The burden on home country health systems was evident from a public health perspective. Determining the extent of cosmetic tourism for breast augmentation, including outcomes and complications, will help to inform Australian patients who this seek procedure abroad. Furthermore, it will aid in better understanding the health system implications and may help to guide future research and public health interventions both locally and internationally. © 2017 Royal Australasian College of Surgeons.

The energy situation in the Usa

International Nuclear Information System (INIS)

2006-01-01

This analyses discusses the energy supplying security, the natural gas demand increase and its consequences, the climatic change in the long-dated, the long dated perspectives of the Usa energy policy, the law on the energy and the consequences for the nuclear activity, the financial incentives in favor of the construction of new nuclear power plants in the Usa and the good nuclear energy industry situation in the Usa. (A.L.B.)

Pilot Study Using the Augmented Reality Sandbox to Teach Topographic Maps and Surficial Processes in Introductory Geology Labs

Science.gov (United States)

Woods, Terri L.; Reed, Sarah; Hsi, Sherry; Woods, John A.; Woods, Michael R.

2016-01-01

Spatial thinking is often challenging for introductory geology students. A pilot study using the Augmented Reality sandbox (AR sandbox) suggests it can be a powerful tool for bridging the gap between two-dimensional (2D) representations and real landscapes, as well as enhancing the spatial thinking and modeling abilities of students. The AR…

Effects of early augmentation of labour with amniotomy and oxytocin in nulliparous women: a meta-analysis.

Science.gov (United States)

Fraser, W; Vendittelli, F; Krauss, I; Bréart, G

1998-02-01

To estimate the effects among nulliparae of early augmentation with amniotomy and oxytocin on caesarean delivery, and on other indicators of maternal and neonatal morbidity including transfusion. Apgar score manual and computerised searches. Two unpublished studies were identified through direct communication with the investigators. Twelve trials were identified which compared a policy of early labour augmentation including amniotomy followed by oxytocin with a less active form of management. Two methodologically unacceptable studies were excluded. Studies were grouped according to whether they admitted only women with abnormal progress (therapy trials: n = 3) or accepted women with normal labour (prevention trials: n = 7). Unstratified analysis did not provide support for the hypothesis that early augmentation reduces the risk of caesarean section (typical odds ratio [OR] 0.9; 95% CI 0.7-1.1). The typical odds ratio for prevention trials was similar to that obtained in the unstratified analysis (typical OR 0.9, 95% CI 0.7-1.2). Although only a small number of women have been randomised in therapy trials, a trend toward a reduction in the rate of caesarean section with early intervention was seen in this group (typical OR 0.6, 95% CI 0.2-1.4). Early augmentation does not appear to provide benefit over a more conservative form of management in the context of care of nulliparous women with mild delays in the progress of labour. In the context of established delay in labour, an active policy of augmentation may reduce the risk of caesarean section. However, only three small trials have been performed in this context, and they do not have adequate power to allow firm conclusions to be drawn.

Geometric Aspects of Ground Augmentation of Satellite Networks for the Needs of Deformation Monitoring

Science.gov (United States)

Protaziuk, Elżbieta

2016-06-01

Satellite measurements become competitive in many tasks of engineering surveys, however, in many requiring applications possibilities to apply such solutions are still limited. The possibility to widely apply satellite technologies for displacements measurements is related with new challenges; the most important of them relate to increasing requirements concerning the accuracy, reliability and continuity of results of position determination. One of the solutions is a ground augmentation of satellite network, which intention is to improve precision of positioning, ensure comparable accuracy of coordinates and reduce precision fluctuations over time. The need for augmentation of GNSS is particularly significant in situations: where the visibility of satellites is poor because of terrain obstacles, when the determined position is not precise enough or a satellites constellation does not allow for reliable positioning. Ground based source/sources of satellite signal placed at a ground, called pseudosatellites, or pseudolites were intensively investigated during the last two decades and finally were developed into groundbased, time-synchronized transceivers, that can transmit and receive a proprietary positioning signal. The paper presents geometric aspects of the ground based augmentation of the satellite networks using various quality measures of positioning geometry, which depends on access to the constellation of satellites and the conditions of the observation environment. The issue of minimizing these measures is the key problem that allows to obtain the position with high accuracy. For this purpose, the use of an error ellipsoid is proposed and compared with an error ellipse. The paper also describes the results of preliminary accuracy analysis obtained at test area and a comparison of various measures of the quality of positioning geometry.

The situation of the nucleo-electric power in the world

International Nuclear Information System (INIS)

Souza, Jair A.M. de.

1995-10-01

In this report, several global aspects of nucleo-electric power generation are presented. The role of nuclear power in the world electric system and its economical, social and environmental aspects are described. The nuclear program of the main countries are presented together with several tables and graphics. 268 refs., 59 figs., 62 tabs

Exploration Augmentation Module Project

Data.gov (United States)

National Aeronautics and Space Administration — The Exploration Augmentation Module (EAM) project goal is to design and deliver a flight module that is to be deployed to Earth-Lunar Distant Retrograde Orbit (DRO)....

Intravenous alpha-1 antitrypsin augmentation therapy: systematic review

DEFF Research Database (Denmark)

Gøtzsche, Peter C; Johansen, Helle Krogh

2010-01-01

We reviewed the benefits and harms of augmentation therapy with alpha-1 antitrypsin in patients with alpha-1 antitrypsin deficiency and lung disease. We searched for randomised trials comparing augmentation therapy with placebo or no treatment in PubMed and ClinicalTrials (7 January 2010). Two...... (difference 1.14 g/l; 95% confidence interval 0.14 to 2.14; p = 0.03) over the total course of the trials. Augmentation therapy with alpha-1 antitrypsin cannot be recommended in view of the lack of evidence of clinical benefit and the cost of treatment....

A Boosting Algorithm Based Method to Predict Cyber-Threats Situation of Power Information Network%采用Boosting方法预测电力信息网络的威胁态势

Institute of Scientific and Technical Information of China (English)

徐茹枝; 王婧; 朱少敏; 许瑞辉

2013-01-01

The prediction of cyber-threats situation can effectively reflect the macroscopic security situation of power information network in the future time. To realize the accurate prediction of cyber-threats situation, an AdaBoosting algorithm based cyber-threats situation prediction method for information network is proposed. In the proposed method, the values of cyber-threats situation are used to describe the macroscopic security situation of power information network, and the prediction of macroscopic security situation is abstracted to a regression problem, and then the regression problem is solved by AdaBoosting algorithm. Firstly, using the sliding time window a time series sample set is constructed by cyber-threats situation values;then the sample set is input into AdaBoosting algorithm to be trained to obtain a regression analysis model;finally the prediction of cyber-threats situation is completed by the regression analysis model. Finally, the effectiveness of the proposed method is verified by results of replication experiments based on field data.%威胁态势预测可以有效反映电力信息网络在未来时刻的宏观安全状况。为实现威胁态势的精确预测，提出一种基于AdaBoosting方法的网络威胁态势预测方法。该方法采用威胁态势值描述电力信息网络的宏观安全态势，并将威胁态势值的预测抽象为回归问题，进而利用AdaBoosting方法求解。该方法先利用滑动时间窗口将威胁态势值构造成时间序列样本集，再将样本集输入到AdaBoosting方法中训练，以得到回归分析模型，并利用该模型完成威胁态势预测。最后基于现场数据的验证性实验证明了所提方法的有效性。

Expert assessment of advanced power sources. Contract report

International Nuclear Information System (INIS)

Gardner, C.L.

2007-07-01

Although DRDC published an exhaustive technical report (in August 2001) on technology trends in advanced power sources projected out to the year 2020, the terrorist attacks on the US on September 11, 2001 (and the consequent, augmented and more broadly-based defence and national security posture adopted by the CF/DND), together with rapid developments in power source technologies over the past five years, internationally, prompted DRDC to update the 2001 report, on a selected number of power source technologies or applications and to provide further guidance to DRDC's Advanced Power Source R and D program. Eight wide-ranging, power source technologies or applications were investigated, using the technique of 'expert elicitation' (that is, using independent experts in the various and diverse technological fields), based on a standardized questionnaire, augmented by the contractor's own expertise (and his overall analysis of the experts' responses) in these diverse areas. In addition, each expert was asked about his/her view on the likely role of nanotechnology in each technological area or application. Following collection and analysis of all the data, the contractor made recommendations on the ability of each power source to meet the future requirements of the CF/DND, taking into account the Technology Readiness Level, for each technology or application

Pemanfaatan Augmented Reality Pada Permainan Othello

Directory of Open Access Journals (Sweden)

Rendy Layman Aguston

2016-11-01

Full Text Available Perkembangan teknologi telah mengubah cara pengerjaan suatu pekerjaan dari cara konvensional menjadi cara yang lebih praktis. Dengan hadirnya teknologi Augmented Reality, cara bermain yang menggunakan pion dan membalikkan pion musuh secara manual menjadi lebih mudah dalam memainkan permainan selain juga dapat berinteraksi langsung. Pembuatan permainan Othello menggunakan program Unity dengan framework Vuforia untuk mewujudkan Augmented Reality pada permainan Othello. Untuk menerapkan Augmented Reality dengan baik, dibutuhkan papan permainan sebagai image target yang sesuai dengan kriteria, jenis kamera yang digunakan, jarak kamera terhadap papan permainan, intensitas cahaya yang ditangkap kamera, serta tingkat sensitivitas tombol virtual. Pada permainan Othello ini tersedia fitur komputer yang menggunakan algoritma Alpha Beta Pruning dengan 3 level kedalaman yang menggunakan perhitungan fungsi evaluasi berupa mobility, potential mobility dan penguasaan corner yang menghasilkan kemenangan mencapai 73,33% dari 15 kali uji coba terhadap aplikasi Othello serupa dan 78,34% dari 37 kali uji coba terhadap user.

Optimizing the Use of Aripiprazole Augmentation in the Treatment of Major Depressive Disorder: From Clinical Trials to Clinical Practice

Science.gov (United States)

Han, Changsu; Wang, Sheng-Min; Lee, Soo-Jung; Jun, Tae-Youn

2015-01-01

Major depressive disorder (MDD) is a recurrent, chronic, and devastating disorder leading to serious impairment in functional capacity as well as increasing public health care costs. In the previous decade, switching therapy and dose adjustment of ongoing antidepressants was the most frequently chosen subsequent treatment option for MDD. However, such recommendations were not based on firmly proven efficacy data from well-designed, placebo-controlled, randomized clinical trials (RCTs) but on practical grounds and clinical reasoning. Aripiprazole augmentation has been dramatically increasing in clinical practice owing to its unique action mechanisms as well as proven efficacy and safety from adequately powered and well-controlled RCTs. Despite the increased use of aripiprazole in depression, limited clinical information and knowledge interfere with proper and efficient use of aripiprazole augmentation for MDD. The objective of the present review was to enhance clinicians' current understanding of aripiprazole augmentation and how to optimize the use of this therapy in the treatment of MDD. PMID:26306301

Exergy analysis and evolutionary optimization of boiler blowdown heat recovery in steam power plants

International Nuclear Information System (INIS)

Vandani, Amin Mohammadi Khoshkar; Bidi, Mokhtar; Ahmadi, Fatemeh

2015-01-01

Highlights: • Heat recovery of boiler blow downed water using a flash tank is modeled. • Exergy destruction of each component is calculated. • Exergy efficiency of the whole system is optimized using GA and PSO algorithms. • Utilizing the flash tank increases the net power and efficiency of the system. - Abstract: In this study, energy and exergy analyses of boiler blowdown heat recovery are performed. To evaluate the effect of heat recovery on the system performance, a steam power plant in Iran is selected and the results of implementation of heat recovery system on the power plant are investigated. Also two different optimization algorithms including GA and PSO are established to increase the plant efficiency. The decision variables are extraction pressure from steam turbine and temperature and pressure of boiler outlet stream. The results indicate that using blowdown recovery technique, the net generated power increases 0.72%. Also energy and exergy efficiency of the system increase by 0.23 and 0.22, respectively. The optimization results show that temperature and pressure of boiler outlet stream have a higher effect on the exergy efficiency of the system in respect to the other decision variables. Using optimization methods, exergy efficiency of the system reaches to 30.66% which shows a 1.86% augmentation with regard to the situation when a flash tank is implemented.

Mobile Augmented Note-taking to Support Operating Physical Devices

OpenAIRE

Liu , Can; Diehl , Jonathan; Huot , Stéphane; Borchers , Jan

2011-01-01

Mobile Augmented Reality: Design Issues and Opportunities - 1st Workshop on Mobile Augmented Reality, MobileHCI 2011; In this paper we propose an approach to assist operating physical devices with mobile augmented reality techniques. We propose ideas of interaction techniques, which allow users to put self-authored information as notes onto physical objects. We present the design of two example applications aiming at solving problems from different aspects of physical operations.

Myanmar - energy situation 1991/92. Myanmar - Energiewirtschaft 1991/92

Energy Technology Data Exchange (ETDEWEB)

1992-12-01

The energy situation of Myanmar (Burma) is reviewed on the basis of selected data. This includes statistics on the country's national and international energy policy, energy sources, and electric power generation. Key data are presented on foreign trade and the balance of payments. (UA).

Personalized augmented reality for anatomy education.

Science.gov (United States)

Ma, Meng; Fallavollita, Pascal; Seelbach, Ina; Von Der Heide, Anna Maria; Euler, Ekkehard; Waschke, Jens; Navab, Nassir

2016-05-01

Anatomy education is a challenging but vital element in forming future medical professionals. In this work, a personalized and interactive augmented reality system is developed to facilitate education. This system behaves as a "magic mirror" which allows personalized in-situ visualization of anatomy on the user's body. Real-time volume visualization of a CT dataset creates the illusion that the user can look inside their body. The system comprises a RGB-D sensor as a real-time tracking device to detect the user moving in front of a display. In addition, the magic mirror system shows text information, medical images, and 3D models of organs that the user can interact with. Through the participation of 7 clinicians and 72 students, two user studies were designed to respectively assess the precision and acceptability of the magic mirror system for education. The results of the first study demonstrated that the average precision of the augmented reality overlay on the user body was 0.96 cm, while the results of the second study indicate 86.1% approval for the educational value of the magic mirror, and 91.7% approval for the augmented reality capability of displaying organs in three dimensions. The usefulness of this unique type of personalized augmented reality technology has been demonstrated in this paper. © 2015 Wiley Periodicals, Inc.

Reorganization of the Lithuanian State Power System

International Nuclear Information System (INIS)

Paskevicius, V.

1995-01-01

This article deals with preasent situation in energy sector in Lithuania. All power plants with installed capacity of 2561 MW, except Ignalina Nuclear Power Plant (3000 MW) belongs to Lithuanian State Power System (LSPS) as well transmission and distribution networks. In 1989-1991 Lithuania generated approximately 29TWh of electricity annually from which 12TWh LSPS exported to neighbouring countries. After 1990 in the transitional period from planned economy to the marked one, the economic situation in the country became complicated. The electricity demand has fallen nearly 40%. Due to the similar situation in neighboring countries the electricity export has decreased too. The article presents the distribution of electric power output in 1994 by power plants; electric power consumption and output of power plants in Lithuania from 1940 to 1994 is also included. Some aspects of regional cooperation of tree Baltic countries in energy area is touched too. 3 figs

Augmented reality based real-time subcutaneous vein imaging system.

Science.gov (United States)

Ai, Danni; Yang, Jian; Fan, Jingfan; Zhao, Yitian; Song, Xianzheng; Shen, Jianbing; Shao, Ling; Wang, Yongtian

2016-07-01

A novel 3D reconstruction and fast imaging system for subcutaneous veins by augmented reality is presented. The study was performed to reduce the failure rate and time required in intravenous injection by providing augmented vein structures that back-project superimposed veins on the skin surface of the hand. Images of the subcutaneous vein are captured by two industrial cameras with extra reflective near-infrared lights. The veins are then segmented by a multiple-feature clustering method. Vein structures captured by the two cameras are matched and reconstructed based on the epipolar constraint and homographic property. The skin surface is reconstructed by active structured light with spatial encoding values and fusion displayed with the reconstructed vein. The vein and skin surface are both reconstructed in the 3D space. Results show that the structures can be precisely back-projected to the back of the hand for further augmented display and visualization. The overall system performance is evaluated in terms of vein segmentation, accuracy of vein matching, feature points distance error, duration times, accuracy of skin reconstruction, and augmented display. All experiments are validated with sets of real vein data. The imaging and augmented system produces good imaging and augmented reality results with high speed.

Virtual, augmented reality and serious games for healthcare

CERN Document Server

Jain, Lakhmi; Anderson, Paul

2014-01-01

There is a tremendous interest among researchers for the development of virtual, augmented reality and games technologies due to their widespread applications in medicine and healthcare. To date the major applications of these technologies include medical simulation, telemedicine, medical and healthcare training, pain control, visualisation aid for surgery, rehabilitation in cases such as stroke, phobia, and trauma therapies. Many recent studies have identified the benefits of using Virtual Reality, Augmented Reality, or serious games in a variety of medical applications.   This research volume on Virtual, Augmented Reality and Serious Games for Healthcare 1 offers an insightful introduction to the theories, development and applications of virtual, augmented reality and digital games technologies in medical and clinical settings and healthcare in general. It is divided into six sections: section one presents a selection of applications in medical education and healthcare management; Section two relates to th...

Mobile Augmented Reality: A Tool for Effective Tourism Interpretation in Enhancing Tourist Experience at Urban Tourism Destination

Directory of Open Access Journals (Sweden)

Nur Shuhadah Mohd

2015-09-01

Full Text Available The formation of tourism experience frequently subjected to complexity of individual tourist psycho-graphical factor, which leads to vast difference in the end experience formed among the respective tourist. However, the fact that travelling is highly subjected to environmental fuzziness and the issue of geographical consciousness may interfere the emotion of tourist and influence the formation of this experience. The evolution and advancement of mobile technologies had been optimized in improving the way human interact with the surrounding environment. Within this context, mobile augmented reality (AR technology is perceived as capable in narrowing the gap between the formation of pleasant experience and the issue of geographical consciousness, thus transform the way tourist interact with the destination. Pertaining to this situation, this conceptual paper is attempted to understand the effectiveness of mobile augmented reality in enhancing tourist travel experience on the tourism destination. In relation to this aim, this study is directed to clarify the mechanism and usability of mobile augmented reality in relation to its capability in improving tourism interpretation and to discover the influence of utilization of this technology towards tourism experience. Critical review of existing literature that relevant to the research area was done in understanding on the extensiveness of impact of mobile AR on tourist and experience formation. Findings revealed the capability of AR in merging virtual information with the real world environment through the platform of mobile device able to create a more dynamic interaction between tourist and surrounding environment.

A Comparison Study of Augmented Reality versus Interactive Simulation Technology to Support Student Learning of a Socio-Scientific Issue

Science.gov (United States)

Chang, Hsin-Yi; Hsu, Ying-Shao; Wu, Hsin-Kai

2016-01-01

We investigated the impact of an augmented reality (AR) versus interactive simulation (IS) activity incorporated in a computer learning environment to facilitate students' learning of a socio-scientific issue (SSI) on nuclear power plants and radiation pollution. We employed a quasi-experimental research design. Two classes (a total of 45…

An Integrative Introduction to Human Augmentation Science

OpenAIRE

Alicea, Bradly

2018-01-01

Human Augmentation (HA) spans several technical fields and methodological approaches, including Experimental Psychology, Human-Computer Interaction, Psychophysiology, and Artificial Intelligence. Augmentation involves various strategies for optimizing and controlling cognitive states, which requires an understanding of biological plasticity, dynamic cognitive processes, and models of adaptive systems. As an instructive lesson, we will explore a few HA-related concepts and outstanding issues. ...

Medical imaging and augmented reality. Proceedings

International Nuclear Information System (INIS)

Dohi, Takeyoshi; Sakuma, Ichiro; Liao, Hongen

2008-01-01

This book constitutes the refereed proceedings of the 4th International Workshop on Medical Imaging and Augmented Reality, MIAR 2008, held in Tokyo, Japan, in August 2008. The 44 revised full papers presented together with 3 invited papers were carefully reviewed and selected from 90 submissions. The papers are organized in topical sections on surgical planning and simulation, medical image computing, image analysis, shape modeling and morphometry, image-guided robotics, image-guided intervention, interventional imaging, image registration, augmented reality, and image segmentation. (orig.)

Medical imaging and augmented reality. Proceedings

Energy Technology Data Exchange (ETDEWEB)

Dohi, Takeyoshi [Tokyo Univ. (Japan). Dept. of Mechano-Informatics; Sakuma, Ichiro [Tokyo Univ. (Japan). Dept. of Precision Engineering; Liao, Hongen (eds.) [Tokyo Univ. (Japan). Dept. of Bioengineering

2008-07-01

This book constitutes the refereed proceedings of the 4th International Workshop on Medical Imaging and Augmented Reality, MIAR 2008, held in Tokyo, Japan, in August 2008. The 44 revised full papers presented together with 3 invited papers were carefully reviewed and selected from 90 submissions. The papers are organized in topical sections on surgical planning and simulation, medical image computing, image analysis, shape modeling and morphometry, image-guided robotics, image-guided intervention, interventional imaging, image registration, augmented reality, and image segmentation. (orig.)

Cognitive Cost of Using Augmented Reality Displays.

Science.gov (United States)

Baumeister, James; Ssin, Seung Youb; ElSayed, Neven A M; Dorrian, Jillian; Webb, David P; Walsh, James A; Simon, Timothy M; Irlitti, Andrew; Smith, Ross T; Kohler, Mark; Thomas, Bruce H

2017-11-01

This paper presents the results of two cognitive load studies comparing three augmented reality display technologies: spatial augmented reality, the optical see-through Microsoft HoloLens, and the video see-through Samsung Gear VR. In particular, the two experiments focused on isolating the cognitive load cost of receiving instructions for a button-pressing procedural task. The studies employed a self-assessment cognitive load methodology, as well as an additional dual-task cognitive load methodology. The results showed that spatial augmented reality led to increased performance and reduced cognitive load. Additionally, it was discovered that a limited field of view can introduce increased cognitive load requirements. The findings suggest that some of the inherent restrictions of head-mounted displays materialize as increased user cognitive load.

Adaptive multimodal interaction in mobile augmented reality: A conceptual framework

Science.gov (United States)

Abidin, Rimaniza Zainal; Arshad, Haslina; Shukri, Saidatul A'isyah Ahmad

2017-10-01

Recently, Augmented Reality (AR) is an emerging technology in many mobile applications. Mobile AR was defined as a medium for displaying information merged with the real world environment mapped with augmented reality surrounding in a single view. There are four main types of mobile augmented reality interfaces and one of them are multimodal interfaces. Multimodal interface processes two or more combined user input modes (such as speech, pen, touch, manual gesture, gaze, and head and body movements) in a coordinated manner with multimedia system output. In multimodal interface, many frameworks have been proposed to guide the designer to develop a multimodal applications including in augmented reality environment but there has been little work reviewing the framework of adaptive multimodal interface in mobile augmented reality. The main goal of this study is to propose a conceptual framework to illustrate the adaptive multimodal interface in mobile augmented reality. We reviewed several frameworks that have been proposed in the field of multimodal interfaces, adaptive interface and augmented reality. We analyzed the components in the previous frameworks and measure which can be applied in mobile devices. Our framework can be used as a guide for designers and developer to develop a mobile AR application with an adaptive multimodal interfaces.

Designing for Wide-Area Situation Awareness in Future Power Grid Operations

Science.gov (United States)

Tran, Fiona F.

Power grid operation uncertainty and complexity continue to increase with the rise of electricity market deregulation, renewable generation, and interconnectedness between multiple jurisdictions. Human operators need appropriate wide-area visualizations to help them monitor system status to ensure reliable operation of the interconnected power grid. We observed transmission operations at a control centre, conducted critical incident interviews, and led focus group sessions with operators. The results informed a Work Domain Analysis of power grid operations, which in turn informed an Ecological Interface Design concept for wide-area monitoring. I validated design concepts through tabletop discussions and a usability evaluation with operators, earning a mean System Usability Scale score of 77 out of 90. The design concepts aim to support an operator's complete and accurate understanding of the power grid state, which operators increasingly require due to the critical nature of power grid infrastructure and growing sources of system uncertainty.

The situation of Chinese atomic energy and cooperation

International Nuclear Information System (INIS)

Nagasaki, Takao

2003-01-01

China will have 8.7 million kW atomic energy in 2005. Japan will complete with China in a sale war of international atomic energy and domestic power source. The position, development and situation of Chinese atomic energy and the future nuclear fuel cycle are reported. 5.4 million kW of 7 atomic power plants in China and 45.9 million kW of 53 plants in Japan are running. 3.3 million kW of 4 plants in China and 4 million kW of 4 plants in Japan are building. New type reactor, the fast breeder and high temperature gas-cooled reactor are developing. Radiation exposure to food, radiation therapy, Radio-pharmaceuticals, polymerization and treatment of sewage and smoke are carried out. The situation of atomic energy co-operation between China and Japan and other countries are stated. Japan has to change to advance mutual interests type co-operation with China. Construction of the nuclear community in Asia area and development of the international long big project are proposed. (S.Y.)

Nuclear facilities situation in Japan after the major earthquake of March 11, 2011. March 29, 2011, 12:00 AM status; Situation des installations nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 29 mars 2011 a 12h00

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 29, 2011, at 12:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear facilities situation in Japan after the major earthquake of March 11, 2011. March 26, 2011, 10:00 AM status; Situation des installations nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 26 mars 2011 a 10h00

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 26, 2011, at 10:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Nuclear facilities situation in Japan after the major earthquake of March 11, 2011. March 28, 2011, 8:00 AM status; Situation des installations nucleaires au Japon suite au seisme majeur survenu le 11 mars 2011. Point de situation du 28 mars 2011 a 08h00

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on March 28, 2011, at 8:00 AM, by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of all 6 reactors of the Fukushima I site (Dai-ichi) and of their spent fuel pools, as well as the situation of the reactors No. 1, 2, 3 and 4 of the Fukushima II site (Daini), and of the Onagawa and Tokai power plants is briefly presented with the progress of the accident management actions. (J.S.)

Situation of Fukushima Dai-ichi power plant in Japan - June 1, 2011 status; Situation de la centrale nucleaire de Fukushima Dai-ichi au Japon - Point de situation du 1er juin 2011

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-01

This situation note is established according to the information gained on June 1, 2011 by the crisis centre of the French institute of radiation protection and nuclear safety (IRSN). The situation of the cores of reactors 1, 2 and 3 of the Fukushima I site (Dai-ichi) and of the different spent fuel pools is briefly presented as well as the actions in progress for the control of environmental radioactive releases and for the progressive recovery of the facilities control. (J.S.)

Power Politics of Family Psychotherapy.

Science.gov (United States)

Whitaker, Carl A.

It is postulated that the standard framework for psychotherapy, a cooperative transference neurosis, does not validly carry over to the successful psychotherapy of a two-generation family group. In many disturbed families, the necessary and sufficient dynamics for change must be initiated, controlled, and augmented by a group dynamic power-play,…

A Systematic Review of Pliance, Tracking, and Augmenting

NARCIS (Netherlands)

Kissi, Ama; Hughes, Sean; Mertens, Gaëtan; Barnes-Holmes, Dermot; De Houwer, Jan; Crombez, Geert

Within relational frame theory, a distinction has been made between three types of rule-governed behavior known as pliance, tracking, and augmenting. This review examined whether there is support for the concepts of pliance, tracking, and augmenting in the experimental analysis of behavior; whether

Introduction to Mobile Augmented Reality Development in Unity

Directory of Open Access Journals (Sweden)

Jacob W. Greene

2016-07-01

Full Text Available This lesson serves as an introduction to creating mobile augmented reality applications. Augmented reality (AR can be defined as the overlaying of digital content (images, video, text, sound, etc. onto physical objects or locations, and it is typically experienced by looking through the camera lens of an electronic device such as a smartphone, tablet, or optical head-mounted display (e.g. Microsoft Hololens. Although AR is a cutting-edge, complex technology, there are a number of user-friendly platforms that allow people with no previous coding experience to create compelling augmented reality experiences.

Gunner Goggles: Implementing Augmented Reality into Medical Education.

Science.gov (United States)

Wang, Leo L; Wu, Hao-Hua; Bilici, Nadir; Tenney-Soeiro, Rebecca

2016-01-01

There is evidence that both smartphone and tablet integration into medical education has been lacking. At the same time, there is a niche for augmented reality (AR) to improve this process through the enhancement of textbook learning. Gunner Goggles is an attempt to enhance textbook learning in shelf exam preparatory review with augmented reality. Here we describe our initial prototype and detail the process by which augmented reality was implemented into our textbook through Layar. We describe the unique functionalities of our textbook pages upon augmented reality implementation, which includes links, videos and 3D figures, and surveyed 24 third year medical students for their impression of the technology. Upon demonstrating an initial prototype textbook chapter, 100% (24/24) of students felt that augmented reality improved the quality of our textbook chapter as a learning tool. Of these students, 92% (22/24) agreed that their shelf exam review was inadequate and 19/24 (79%) felt that a completed Gunner Goggles product would have been a viable alternative to their shelf exam review. Thus, while students report interest in the integration of AR into medical education test prep, future investigation into how the use of AR can improve performance on exams is warranted.

Distribution System Augmented by DC Links for Increasing the Hosting Capacity of PV Generation

DEFF Research Database (Denmark)

Chaudhary, Sanjay; Demirok, Erhan; Teodorescu, Remus

2012-01-01

This paper presents a concept of enhancing the photovoltaic (PV) power generation hosting capacity of distribution networks. Distribution network serving electrical energy to farm settlements was selected as an example for their large roof area available for PV installation. Further, they are cha......This paper presents a concept of enhancing the photovoltaic (PV) power generation hosting capacity of distribution networks. Distribution network serving electrical energy to farm settlements was selected as an example for their large roof area available for PV installation. Further......, they are characterized by long radial feeders. Such feeders suffer from voltage rise and transformer overloading problems as the total number and capacity of the PV installations increase. The distribution network can be augmented by dc distribution links with power electronic converter interfaces to the traditional ac...... distribution systems. It is shown here that the dc links can be used to interconnect the different radial feeders and the excess power thus could be transferred to the nearby industrial load-center....

Augmented reality mobile application for overlaying images on textiles

OpenAIRE

Brinza, Veronica

2016-01-01

Augmented reality is one the relatively new and fast growing branches in modern informatics. It incorporates in simple people lives on a lot of different levels. It can be used everywhere starting from the simple checking of your email and ending up with a complex augmented reality video games or augmented reality learning. From the ancient times actors tried to immerse the spectators in world of the performance using decoration and costumed. In XVIII – XIX centuries pictures w...

Augmented reality tools and learning practice in mobile-learning

OpenAIRE

Figueiredo, Mauro; Gomes, José; Gomes, Cristina; Lopes, João

2014-01-01

There are many augmented reality (AR) applications available that can be used to create educational contents for these mobile devices. This paper surveys the most popular augmented reality applications and we select AR eco-systems to be used in daily teaching activities which are user friendly, do not require programming skills and are free. Different augmented reality technologies are explored in this paper to create teaching activities with animations, videos and other information to be sho...

Situation and future developments in the power station engineering of the GDR

International Nuclear Information System (INIS)

Effenberger, H.; Weidlich, H.G.

1990-01-01

Starting with the present state of power stations in the GDR and their evaluation in respect of energy and ecology, the authors have developed a concept for the future objectives and possibilities of the power stations. With regard to the modification of the power station engineering, considered as urgently required due to reasons of energy and environment, there was suggestions for modern plant conceptions, such as fluidized bed combustors, combined and gas/steam power plants, besides the retrofitting and the new building of proven conventional plants. It includes also the extension of combined heat and power systems, of nuclear energy, and the use of regenerative energy sources as parts of this concept. The power station modifications intended are shown in tables for the various power station locations. (orig.) [de

Augmented reality aiding collimator exchange at the LHC

International Nuclear Information System (INIS)

Martínez, Héctor; Fabry, Thomas; Laukkanen, Seppo; Mattila, Jouni; Tabourot, Laurent

2014-01-01

Novel Augmented Reality techniques have the potential to have a large positive impact on the way remote maintenance operations are carried out in hazardous areas, e.g. areas where radiation doses that imply careful planning and optimization of maintenance operations are present. This paper describes an Augmented Reality strategy, system and implementation for aiding the remote collimator exchange in the LHC, currently the world's largest and highest-energy particle accelerator. The proposed system relies on marker detection and multi-modal augmentation in real-time. A database system has been used to ensure flexibility. The system has been tested in a mock-up facility, showing real time performance and great potential for future use in the LHC. The technical-scientific difficulties identified during the development of the system and the proposed solutions described in this paper may help the development of future Augmented Reality systems for remote handling in scientific facilities

Augmented reality aiding collimator exchange at the LHC

Energy Technology Data Exchange (ETDEWEB)

Martínez, Héctor, E-mail: hector.martinez@sensetrix.com [SenseTrix, PL 20 FI-00101 Helsinki (Finland); Fabry, Thomas [European Organization for Nuclear Research, CERN, CH-1211 Genève 23 (Switzerland); Laukkanen, Seppo [SenseTrix, PL 20 FI-00101 Helsinki (Finland); Mattila, Jouni [Tampere University of Technology, PO Box 527, FI-33101 Tampere (Finland); Tabourot, Laurent [SYMME, Université de Savoie, Polytech Annecy-Chambéry, 5 chemin de Bellevue, 74944 Annecy le Vieux (France)

2014-11-01

Novel Augmented Reality techniques have the potential to have a large positive impact on the way remote maintenance operations are carried out in hazardous areas, e.g. areas where radiation doses that imply careful planning and optimization of maintenance operations are present. This paper describes an Augmented Reality strategy, system and implementation for aiding the remote collimator exchange in the LHC, currently the world's largest and highest-energy particle accelerator. The proposed system relies on marker detection and multi-modal augmentation in real-time. A database system has been used to ensure flexibility. The system has been tested in a mock-up facility, showing real time performance and great potential for future use in the LHC. The technical-scientific difficulties identified during the development of the system and the proposed solutions described in this paper may help the development of future Augmented Reality systems for remote handling in scientific facilities.

Necessities of the Development of a Database for the Communications Between Nuclear Power Plant Operators in Simulated Emergency Situations

International Nuclear Information System (INIS)

Kim, Man Cheol; Park, Jin Kyun; Jung, Won Dea

2007-01-01

Communications among main control room (MCR) operators is an important factor for understanding how and how well MCR operators manage abnormal or emergency situations in nuclear power plants (NPPs). As mentioned by many researchers, the performance of MCR operators in emergency situations in NPPs is strongly affected by not only the cognitive process of each operator, but also by communications and collaboration among operators. Despite of the importance of correct communications among NPP operators, the possibilities of human errors in communications have not received much attention. A representative example for the lack of interests in communication-related problems is the lack of considering communication-related human errors in human reliability analysis (HRA) methods. HRA methods are used, in general, to provide human error probabilities to probabilistic safety assessment (PSA) of NPPs. In THERP (Technique for Human Error Rate Prediction), which was developed by Swain and Guttmann and currently is one of the most widely used HRA method, the human errors in communications are not directly considered. The human error probability (HEP) and error factor (EF) data that we could find as the most related ones to communication-related human errors are the estimated probabilities of errors in recalling oral instruction items which are not written down. But, it is obvious that the failure in recalling oral instruction items and misunderstanding oral instruction items are different error types

Transaxillary Endoscopic Breast Augmentation

Directory of Open Access Journals (Sweden)

Hyung-Bo Sim

2014-09-01

Full Text Available The axillary technique is the most popular approach to breast augmentation among Korean women. Transaxillary breast augmentation is now conducted with sharp electrocautery dissection under direct endoscopic vision throughout the entire process. The aims of this method are clear: both a bloodless pocket and a sharp non-traumatic dissection. Round textured or anatomical cohesive gel implants have been used to make predictable well-defined inframammary creases because textured surface implants demonstrated a better stability attributable to tissue adherence compared with smooth surface implants. The axillary endoscopic technique has greatly evolved, and now the surgical results are comparable to those with the inframammary approach. The author feels that this technique is an excellent choice for young patients with an indistinct or absent inframammary fold, who do not want a scar in the aesthetic unit of their chest.

Application of Virtual, Augmented, and Mixed Reality to Urology.

Science.gov (United States)

Hamacher, Alaric; Kim, Su Jin; Cho, Sung Tae; Pardeshi, Sunil; Lee, Seung Hyun; Eun, Sung-Jong; Whangbo, Taeg Keun

2016-09-01

Recent developments in virtual, augmented, and mixed reality have introduced a considerable number of new devices into the consumer market. This momentum is also affecting the medical and health care sector. Although many of the theoretical and practical foundations of virtual reality (VR) were already researched and experienced in the 1980s, the vastly improved features of displays, sensors, interactivity, and computing power currently available in devices offer a new field of applications to the medical sector and also to urology in particular. The purpose of this review article is to review the extent to which VR technology has already influenced certain aspects of medicine, the applications that are currently in use in urology, and the future development trends that could be expected.

Application of Virtual, Augmented, and Mixed Reality to Urology

Directory of Open Access Journals (Sweden)

Alaric Hamacher

2016-09-01

Full Text Available Recent developments in virtual, augmented, and mixed reality have introduced a considerable number of new devices into the consumer market. This momentum is also affecting the medical and health care sector. Although many of the theoretical and practical foundations of virtual reality (VR were already researched and experienced in the 1980s, the vastly improved features of displays, sensors, interactivity, and computing power currently available in devices offer a new field of applications to the medical sector and also to urology in particular. The purpose of this review article is to review the extent to which VR technology has already influenced certain aspects of medicine, the applications that are currently in use in urology, and the future development trends that could be expected.

Radiation situation and irradiation level in forest workers in places of timber works in alienation zone of Chernobyl Atomic Power Plant

International Nuclear Information System (INIS)

Kalashnikova, Z.V.; Karachov, Yi.Yi.; Berezhna, T.Yi.; Kuchma, M.D.

1997-01-01

The radiation hygienic situation in the forest plots and dose load of the personnel at timber works in the alienation zone of the Chernobyl Atomic Power Plant was evaluated.It has been revealed that the density of contamination of the forest soil at the areas of timber works was 155.4-447.3 kBq centre dot m 2 . Maximum year equivalent dose on the lungs and total dose of external and internal irradiation in the forest workers in the zone of alienation during the work at the areas were about 40% of the values of the respective dose limits for the population of B category

Integrating wind power in the (French) power system

International Nuclear Information System (INIS)

Pellen, A.

2007-03-01

RTE and EDF have no other technological option than to restrain the contribution of the French wind power fleet to base-load generation where it comes in direct competition with the nuclear power plants. The author aims to explain this situation and answer the following questions. Why the fossil fueled reactor fleet in France will not be affected by an evolution of the wind power capacity? Why, in France electric power generation-demand SYSTEM wind power cannot be a substitute for fossil fueled thermal units? (A.L.B.)

Empirical research on an ecological interface design for improving situation awareness of operators in an advanced control room

International Nuclear Information System (INIS)

Kim, Sa Kil; Suh, Sang Moon; Jang, Gwi Sook; Hong, Seung Kweon; Park, Jung Chul

2012-01-01

Highlights: ► An EID prototype for monitoring primary side of nuclear power plant is proposed. ► The effectiveness of the prototype is validated using a partial scoped dynamic mockup in terms of situation awareness. ► The validation is based on comparison of a mimic display with an EID plus mimics. - Abstract: The purpose of this study is to validate whether an ecological interface design (EID) improves operators’ situation awareness in an advanced control room of a nuclear power plant (NPP). EID is defined as an approach to interface design that was introduced specifically for complex socio-technical, real-time, and dynamic systems. The EID technology has not yet been adapted to the nuclear power industry due to lack of empirical studies. Especially in a situational awareness aspect, many researchers have predicted that the EID will support operators to detect unanticipated events. Just a few studies, however, unveiled the positive effect of the EID display on human performance using a full scoped simulator. In this study, to investigate whether an EID improves operators’ situational awareness, we developed an EID prototype for nuclear power operations and a partial scoped dynamic mockup to validate the effectiveness of the EID prototype. Three experienced operators were involved as subjects in our study and they were fully well trained for using the EID prototype. We compared two types of situations in terms of situation awareness. One is mimic based information display and the other is a mimic plus EID based information display. The result of our study revealed that a mimic plus EID based information display is more effective than a mimic based information display in terms of situation awareness. This study is significant in that the EID as an emerging technology is adoptable to a digitalized control room in an aspect of improving operators’ situation awareness.

Augmentation of Rotator Cuff Repair With Soft Tissue Scaffolds

Science.gov (United States)

Thangarajah, Tanujan; Pendegrass, Catherine J.; Shahbazi, Shirin; Lambert, Simon; Alexander, Susan; Blunn, Gordon W.

2015-01-01

Background Tears of the rotator cuff are one of the most common tendon disorders. Treatment often includes surgical repair, but the rate of failure to gain or maintain healing has been reported to be as high as 94%. This has been substantially attributed to the inadequate capacity of tendon to heal once damaged, particularly to bone at the enthesis. A number of strategies have been developed to improve tendon-bone healing, tendon-tendon healing, and tendon regeneration. Scaffolds have received considerable attention for replacement, reconstruction, or reinforcement of tendon defects but may not possess situation-specific or durable mechanical and biological characteristics. Purpose To provide an overview of the biology of tendon-bone healing and the current scaffolds used to augment rotator cuff repairs. Study Design Systematic review; Level of evidence, 4. Methods A preliminary literature search of MEDLINE and Embase databases was performed using the terms rotator cuff scaffolds, rotator cuff augmentation, allografts for rotator cuff repair, xenografts for rotator cuff repair, and synthetic grafts for rotator cuff repair. Results The search identified 438 unique articles. Of these, 214 articles were irrelevant to the topic and were therefore excluded. This left a total of 224 studies that were suitable for analysis. Conclusion A number of novel biomaterials have been developed into biologically and mechanically favorable scaffolds. Few clinical trials have examined their effect on tendon-bone healing in well-designed, long-term follow-up studies with appropriate control groups. While there is still considerable work to be done before scaffolds are introduced into routine clinical practice, there does appear to be a clear indication for their use as an interpositional graft for large and massive retracted rotator cuff tears and when repairing a poor-quality degenerative tendon. PMID:26665095

Transforming Polar Research with Google Glass Augmented Reality (Invited)

Science.gov (United States)

Ruthkoski, T.

2013-12-01

Augmented reality is a new technology with the potential to accelerate the advancement of science, particularly in geophysical research. Augmented reality is defined as a live, direct or indirect, view of a physical, real-world environment whose elements are augmented (or supplemented) by computer-generated sensory input such as sound, video, graphics or GPS data. When paired with advanced computing techniques on cloud resources, augmented reality has the potential to improve data collection techniques, visualizations, as well as in-situ analysis for many areas of research. Google is currently a pioneer of augmented reality technology and has released beta versions of their wearable computing device, Google Glass, to a select number of developers and beta testers. This community of 'Glass Explorers' is the vehicle from which Google shapes the future of their augmented reality device. Example applications of Google Glass in geophysical research range from use as a data gathering interface in harsh climates to an on-site visualization and analysis tool. Early participation in the shaping of the Google Glass device is an opportunity for researchers to tailor this new technology to their specific needs. The purpose of this presentation is to provide geophysical researchers with a hands-on first look at Google Glass and its potential as a scientific tool. Attendees will be given an overview of the technical specifications as well as a live demonstration of the device. Potential applications to geophysical research in polar regions will be the primary focus. The presentation will conclude with an open call to participate, during which attendees may indicate interest in developing projects that integrate Google Glass into their research. Application Mockup: Penguin Counter Google Glass Augmented Reality Device

Performance of a solar augmented heat pump

Science.gov (United States)

Bedinger, A. F. G.; Tomlinson, J. J.; Reid, R. L.; Chaffin, D. J.

Performance of a residential size solar augmented heat pump is reported for the 1979-1980 heating season. The facility located in Knoxville, Tennessee, has a measured heat load coefficient of 339.5 watt/C (644 BTU/hr- F). The solar augmented heat pump system consists of 7.4 cu m of one inch diameter crushed limestone. The heat pump is a nominal 8.8 KW (2 1/2 ton) high efficiency unit. The system includes electric resistance heaters to give the option of adding thermal energy to the pebble bed storage during utility off-peak periods, thus offering considerable load management capability. A 15 KW electric resistance duct heater is used to add thermal energy to the pebble bin as required during off-peak periods. Hourly thermal performance and on site weather data was taken for the period November 1, 1979, to April 13, 1980. Thermal performance data consists of heat flow summations for all modes of the system, pebble bed temperatures, and space temperature. Weather data consists of dry bulb temperature, dew point temperature, total global insolation (in the plane of the collector), and wind speed and direction. An error analysis was performed and the least accurate of the measurements was determined to be the heat flow at 5%. Solar system thermal performance factor was measured to be 8.77. The heat pump thermal performance factor was 1.64. Total system seasonal performance factor was measured to be 1.66. Using a modified version of TRNSYS, the thermal performance of this system was simulated. When simulation results were compared with data collected onsite, the predicted heat flow and power consumption generally were within experimental accuracy.

Maxillary Sinus Floor Augmentation

DEFF Research Database (Denmark)

Starch-Jensen, Thomas; Jensen, Janek Dalsgaard

2017-01-01

, radiological and histomorphometric outcome as well as complications are presented after maxillary sinus floor augmentation applying the lateral window technique with a graft material, maxillary sinus membrane elevation without a graft material and osteotome-mediated sinus floor elevation with or without...

Towards Wearable Gaze Supported Augmented Cognition

DEFF Research Database (Denmark)

Toshiaki Kurauchi, Andrew; Hitoshi Morimoto, Carlos; Mardanbeigi, Diako

Augmented cognition applications must deal with the problem of how to exhibit information in an orderly, understandable, and timely fashion. Though context have been suggested to control the kind, amount, and timing of the information delivered, we argue that gaze can be a fundamental tool...... by the wearable computing community to develop a gaze supported augmented cognition application with three interaction modes. The application provides information of the person being looked at. The continuous mode updates information every time the user looks at a different face. The key activated discrete mode...

Superconducting augmented rail gun (SARG)

International Nuclear Information System (INIS)

Homan, C.G.; Cummings, C.E.; Fowler, C.M.

1986-01-01

Superconducting augmentation consists of a superconducting coil operating in the persistent mode closely coupled magnetically with a normally conducting rail gun. A theoretical investigation of the effect of this system on a rail gun has shown that two benefits occur. Projectile velocities and launch efficiencies increase significantly depending on the magnetic coupling between the rail and augmentation circuits. Previous work evaluated an idealized system by neglecting energy dissipation effects. In this paper, the authors extend the analysis to include the neglected terms and show improved actual launch efficiencies for the SARG configuration. In this paper, the authors discuss details of projectile design in depth and present preliminary results of rail gun performance

EPIDEMIOLOGICAL SITUATION ON HIV INFECTION IN THE REPUBLIC OF BASHKORTOSTAN IN 2015

Directory of Open Access Journals (Sweden)

R. G. Yapparov

2016-01-01

Full Text Available In the  Republic of Bashkortostan the  intense epidemiological  situation on HIV infection remains, spread  of a human   immunodeficiency  virus  among   the  population and augmentation of cumulative number infected and  patients continues.Research objective: detection of nature of epidemic process  of HIV infection in the  Republic of Bashkortostan and the city of Ufa.On  the  basis  of  medical documentation: a registration form No. 058/at “Emergency notice on an infectious disease, food poisoning, unusual reaction to an inoculation”, the card of epidemiological inspection of the center  of HIV infection, the card of an ambulatory, – 23 143 cases  of HIV infection, 5343 cases of death of HIV-positive patients were studied.As a result of research  tendencies of spread  of HIV infection in the republic are taped: body height of number of again taped HIV-positive persons (2015 – 2 907 new cases  of HIV infection, 2014 – 2 862 case, 2013 – 2 475 cases; conservation  of a high  incidence of HIV infection (71,39 on 100 000 population; augmentation of specific gravity of a sexual way of transfer  of the HIV (51,42% realized both at heterosexual contacts and  in group  of men  who have  sex with  men  (48 cases; growth  by 37,9% of number of the died  HIV-positive people of all reasons  and, including, owing  to HIV infection; prevalence among HIV-positive people at the time of identification  of an age category from 31 to 40 years (48,8%.Current  situation demands acceptance of  urgent measures for stabilization and  depression of a case rate the HIV infection  including  carrying   out   scheduled  maintenance with the working population.

The Local Games Lab ABQ: Homegrown Augmented Reality

Science.gov (United States)

Holden, Christopher

2014-01-01

Experiments in the use of augmented reality games formerly required extensive material resources and expertise to implement above and beyond what might be possible within the usual educational contexts. Currently, the more common availability of hardware in these contexts and the existence of easy-to-use, general purpose augmented reality design…

Complications 15 years after breast augmentation with polyacrylamide

Directory of Open Access Journals (Sweden)

Habib M. Ghasemi

2015-06-01

Full Text Available Polyacrylamide hydrogel (PAAG has been used as an injectable, permanent filler for soft-tissue augmentation for more than two decades. Several complications have been reported worldwide. In this case report, we present a woman with long-term complications 15 years after bilateral breast augmentation with PAAG injections.

Pose estimation for mobile devices and augmented reality

NARCIS (Netherlands)

Caarls, J.

2009-01-01

In this thesis we introduce the reader to the field of Augmented Reality (AR) and describe aspects of an AR system. We show the current uses in treatment of phobias, games, sports and industry. We present the challenges for Optical See-Through Augmented Reality in which the real world is perceived

Mechanical behaviour and failure of fuel cladding zirconium alloys in nuclear power plants under accidental RIA-type situation

International Nuclear Information System (INIS)

Doan, D.T.

2009-01-01

In French Nuclear Pressurized Water Reactors (PWRs), most of structural parts of the fuel assembly consist of zirconium alloy tubes and plates. Optimizing the management of fuel in nuclear power plants led to the increase in the duration of fuel cycles and power. The use of high fuel burnups requires drastic changes in the rules for reactor design in the nuclear safety. The evaluation of nuclear reactors in accident situations is based on reference accident scenarios. One of these hypothetical accidents, examined in this study, is the 'Reactivity Initiated Accident'. In order to assess the structural integrity of these parts it is necessary to characterize both the plastic flow and fracture behaviour of the materials at various stages of the life cycle, (i.e. at increasing levels of hydriding, irradiation, oxidation or thermal mechanical loading). The purpose of this work is to provide experimental data and to develop a model of the thermo-mechanical behaviour and to propose a design analysis method in the case of non-irradiated clads, in RIA-type situations. Mechanical tests were conducted on Cold-Worked-Stress-Relieved and on Recrystallized Zircaloy-4 sheets using various kinds of samples including smooth and notched tensile specimens and small punch tests. Temperature was set to 25, 250 and 600 C with hydrogen contents between 0 and 1000 ppm. The model is based on a simplified description of a Zircaloy polycrystal in which scalar isotropic ductile damage including void nucleation and growth is added. The model is also physically based to easily transfer parameters determined for one material state to another (e.g. transfer between sheet and tube or between different levels of irradiation). The model was implemented in the Finite Element software Zebulon using either an explicit or an implicit time integration scheme. Uniaxial tension tests were used to tune the model parameters for both materials, considering various values of temperature and hydrogen levels

Comparative studies between nuclear power plants and hydroelectric power plants

International Nuclear Information System (INIS)

Menegassi, J.

1984-01-01

This paper shows the quantitative evolution of the power plants in the main countries of the world. The Brazilian situation is analysed, with emphasys in the technical and economical aspects related to power production by hidroelectric or nuclear power plants. The conclusion is that the electricity produced by hidro power plants becomes not economics when is intended to be produced at large distances from the demand centers. (Author) [pt

PENGGUNAAN AUGMENTED REALITY UNTUK MENSIMULASIKAN DEKORASI RUANGAN SECARA REAL TIME

Directory of Open Access Journals (Sweden)

Ulva Erida Nur Rochmah

2016-12-01

Full Text Available Abstrak Mendekorasi ruangan merupakan kegiatan  yang memakan banyak waktu dan tenaga, terutama jika objek yang digunakan besar dan berat. Akan merepotkan jika seseorang harus menggeser setiap objek untuk menentukan letak yang sesuai. Hal ini dapat dihindari dengan menggunakan aplikasi berbasis Augmented Reality. Augmented Reality merupakan sebuah teknologi untuk menggabungkan dunia nyata dan dunia virtual dengan cara menampilkan objek-objek virtual di dunia nyata secara real time. Tujuan utama dari penelitian ini adalah untuk menciptakan suatu aplikasi Android dengan menggunakan Augmented Reality yang dapat digunakan untuk menggantikan objek nyata dengan objek virtual 3D sehingga memudahkan pengguna dalam mensimulasikan dekorasi ruangan. Aplikasi ini bekerja dengan cara memindai marker yang sudah dicetak pada selembar kertas. Jika marker telah terdeteksi, objek 3D berupa perabot akan ditampilkan di kamera aplikasi. Pengguna dapat memindah lokasi, memutar, dan mengubah ukuran objek untuk mensimulasikan tata letak ruangan. Hasil penelitian ini adalah aplikasi Android berbasis Augmented Reality yang dapat digunakan untuk mensimulasikan dekorasi ruangan secara real time. Kata Kunci: augmented reality, dekorasi, interior, marker Abstract Decorating the room is an activity that takes a lot of time and effort, especially if the object is large and heavy. It would be inconvenient if someone has to drag each object to determine the appropriate location. This problem can be avoided using an Augmented Reality-based application. Augmented reality is a technology that combine the real world and the virtual world by displaying virtual object in real world. The main purpose of this research is to create an Android application using Augmented reality  that can be used to replace the real object with virtual 3D object, making it easier for the user to simulate the decoration of the room. This application works by scanning the marker that has been printed on a

Requirements and operation of decentralised power plants in the changing power market

International Nuclear Information System (INIS)

Hoenings, Norbert; Hornig, Niels; Steinbach, Sebastian

2014-01-01

E.ON plans and realises distributed industrial power plants on the basis of contracting schemes. Target is to reduce energy costs without investment by the customer himself. Gas turbine CHP plants are very flexible and offer many possibilities for the operator to adjust optimally to a constantly changing energy market. This aspect is becoming increasingly important due to the increasing share of renewables. However, the economic situation for CHP plants has deteriorated significantly, due to the current market situation distorted by the subsidised renewable power generation. (orig.)