The Fukushima-daiichi NPP accident was caused by the tsunami. However, the safety culture for nuclear system is also considered to be one of the route causes. The safety concept should be based on the 5th layer defense in depth. The accident management should be taken into the regulation system officially. Also, the quantitative probabilistic risk analysis should be evaluated to confirm the safeties of the NPP.

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IAEA and OECD/NEA ISOE Committee 7th Chairman TOKYU REIT Toranomon Bldg. 3-17-1, Toranomon, Minato-ku, Tokyo, 105-0001, Japan IAEA has organized the Great East Japan Earthquake Expert Mission on Fukushima-daiichi accident and they reported to the formal meeting in the headquater in Viena.. They made 15 conclusions and 16 lessons and learned. IAEA chairman officially summarized 28 recommendations from them. USNRC published "Recommendations for Enhanuing Reactor Safety in the 21st Century "where they summarized 12 Recommendations on Fukushima Accident. Here is the summary of these recommendations

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Mobility is one of the most important item for daily life of human being. Even though one is aged 65+ and ADL level become low, ability to go shopping, etc. should be raised, in order to get active life. This manuscript shows several mobility tool (Vehicles) which would be used by older people, as well as classification of personal mobility vehicles.

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The purpose of this study is to discuss educational issues and prospects for high school student's vocational development through clarifying how high school students advance after graduation. As a result of discussion there were three tendencies in high school student's career after graduation, (1)increase of students who go on to college education, (2)decrease of students who enter employment, (3)existence of students who are not in education, employment or training. Especially, "(2)decrease of students going to work" was caused by the big sift of Japanese Employment System, and questions a original role of high schools for vocational development. In this situation it should be paid attention to Technical and Vocational Education power which had concreteness that secured technical knowledge and skill.

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I introduce challenge lesson which high school student teach to university student. Practical training of lathe makes technical high school student confidence. Funny experiment make technical high school student motivated to study machine. For example, Experiment to measure atmospheric pressure using a hose, and Observation floating coin above water understand surface tension. In the technical high school, the students have a lot of trouble; I try student's confidence in teaching twist.

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There are some various problems in a part-time school industrial high school. Those problems are solved, and the device and the aspect to assume a profitable class for the student are described. There was a scene to which the student understood the utility of study basing the history in the class that treated the unit. In the class that made Nebuta, the student of an industrial major cooperated with the student of the general education course, it produced, and it announced.

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Measurement-integrated (MI) simulation is a numerical flow analysis method with a feedback mechanism from measurement of a real flow. It correctly reproduces a real flow under inherent ambiguity in a mathematical model or a computational condition. In this paper we theoretically investigated the destabilization phenomenon of MI simulation, in which analysis error suddenly increases at some critical feedback gain. This phenomenon has been considered as instability of a closed-loop feedback system, but present study treated it as that of a numerical scheme. First, the mechanism of the destabilization phenomenon was investigated based on the sufficient condition of the convergence of iterative calculation of existing MI simulation. It was found that the feedback signal in the source term destabilized the iterative calculation. The validity of the present theoretical analysis was verified for examples treated in former studies of MI simulations. Occurrences of destabilization phenomenon in all the examples were well explained by the condition of this study, especially for cases of relatively small time steps and large feedback gains.

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We survey the problem solving carried out in the textbooks of the fundamental fluid dynamics. The initial problem solving method that is usually called as an expert system was based on the if-then rules. This method likely represent that the problems to be solved are very limited and the application is not wide enough. In order to overcome this defect, an ontological based approach is proposed. In this method, the well structured knowledge based is designed to clarify the relations among pieces of knowledge. Then the problems are attempted to solve by using the principle and naive knowledge that we have. In this paper, we present an overview of the representation of the knowledge and solving process. We first show how we follow the solving process of the problem in basic fluid engineering, and then represent the formal hierarchy structure is required to solve the problem that is not limited to a narrow application area.

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In this talk, we take the experience in design and development of a novel cooperative visualization environment, called VIDELICET (Visualization DEsign and Life cyclE managemenT), as a successful example of fluid informatics so as to illustrate how computer science can contribute to the advancement of fluid science.

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Owing to the volume of data generated in recent computations and experiments, it is quite difficult to extract useful information from these data even if using scientific/information visualization techniques. Method or methodology to extract useful information from such data should be considered. In this paper, a strategic visualization methodology using some data mining techniques, which includes a human recognition process and quantitative evaluations of the visualized results is introduced.

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One of the facets of Fluid Informatics has been constructed from the application of Soft Computing to design problems in fluid engineering. Self-Organizing Maps (SOMs) have been used to visualize the objective function space of the optimization problem in fluid engineering design obtained by Evolutionary Computation. The resulting SOM generates clusters of designs, which indicate tradeoffs and sweet spot in the design space. These processes can be considered as visual data mining of the engineering design to obtain design knowledge. Data mining example will be given for supersonic wing design.

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Further improvement of fuel consumption on the diesel engine is strongly required from the stand point of energy security and environmental protection on a global scale without mentioning about achievement of the stringent future emission regulations. However, conventional actual testing is no longer applied for system optimization of future diesel engine due to high degree of complexity and freedom of its system. Additionally, engine control assumes the important role of providing a good fuel economy under wide-ranging practical operating conditions including emission test mode. Therefore, the total engine simulation system (TESS) is developed as an exploitable integrated tool through all of engine development phase. The TESS can be applied for system planning, design of control logic, embedded to the ECU (Engine Control Unit) for model based control and partially substitute for actual testing. This article mentions about general outline of developed simulation tool and its application for system investigation for future diesel engine. Additionally, approach of model based control for variable valve actuation as a key device is also mentioned as an example.

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The paper describes a concept of energy system design for innovative low carbon society into the future, based on the understandings of the changes in primary energy supply, application of energy models, and technology learning.

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We use a MARKAL energy model to have a view of Japan's future energy supply and demand facing many challenges. This report introduces its methods and analysis examples and describes future challenges and possibilities.

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This paper introduces the outline and future development issues on the technology to reducing carbon dioxide emissions from power generation sector. Main focus of this paper is technology about the fossil-fueled thermal power generation. In this area, efficiency improvement and CO_2 capture technologies are important and being developed intensively.

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Japanese gas industry is now making efforts to create a low carbon society. To achieve this, smart energy network(SEN) which enables efficient energy supply not only electric energy but also heat energy is under study. In this paper, three values of SEN and how gas combined heat & power works with renewable energy is described.

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Flow Accelerated Corrosion (FAC) is one of the most important degradation modes of power plants because of its relatively high frequency of occurrence and of its potential consequence. FAC is a complex phenomenon, where variety of influencing factors, including flow dynamics, water chemistry, and steel compositions, are involved. This article describes recent progress in understanding FAC for advanced piping wastage management.

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The liquid droplet impingement erosion is one of the important causes of pipe-wall thinning in the aged nuclear power plants. This paper describes the recent development of researches on liquid droplet impingement erosion. An attention is placed on the studies on the mechanism of LDI, the influential factors both from the fluid mechanics and material science and the prediction technique for erosion rate.

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Pipe wall thinning management in nuclear power plants is aimed at providing a life management process ensuring replacement or repair prior to in-service failure. Ultrasonic testing (UT) and radiographic testing (RT) have been conventional inspection and monitoring techniques for pipe wall management. Recently, interest has grown for advanced inspection and monitoring techniques for characterizing and detecting pipe wall thinning, such as flow accelerated corrosion (FAC), liquid droplet impingement erosion (LDI), flashing erosion, etc, In this lecture, we summarize the current achievement for two upcoming technologies, ultrasonic guided wave testing (UGT) and electromagnetic acoustic transducer (EMAT).

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Shot peening improves the fatigue strength of parts with a simple technique. Therefore, it is in applications such as automotive transmission gears. Recently, the demand for automobile fuel efficiency. Thus, the automotive parts are needed to do more intense. Gear fatigue strength that is required is a bending fatigue strength and contact fatigue strength . Contact fatigue strength is sensitive to surface roughness. Therefore, the surface roughness after shot peening must be reduced. To meet this demand in recent years has developed a fine shot of a diameter of 100pm or less. In this section, we report the effects of fine particle shot peenig on carburized parts.

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DLC coating significantly improves performance of every sliding and rotating part for industrial machine and automobile especially in resistances to seizure, pitching and wear. WC/C coating is the most suitable for gears in order to improve the performances, while there are a lot of types of DLCs available in the market. This paper explains how much WC/C coating improves performances of gears, giving know-hows of coating them like machine finishing, surface condition on the teeth before coating.

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The purpose of this study is to build a flexible mechanical system with a hydraulic skeleton using flexible bags. Such flexible system has advantages such as reducing collision risk, adaptive deformation against environment and dealing with fragile objects. The main components of this system are two types of flexible bag. One is a structural bag with constant inner pressure. The other is an actuator bag with controlled inner pressure. This study introduces several applications of the flexible system as follows; a flexible robotic arm, a hermetically sealed mobile robot with double roped structure and a ciliary actuator sheet. To design such systems, it is necessary to estimate both structural deformation and driving force. Although numerical analysis of flexible bags is difficult because of large nonlinear deformation, this study analyzed structural strength and driving force of flexible bags with the nonlinear finite element analysis software ABAQUS. The stress concentration dependency on the bag shape is described and the driving force is calculated including the large deformation.

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To satisfy the various assembly demands which operate using flexible materials, we have newly developed the motion planning approaches. In this report, for the "Furoshiki" wrapping operations the motion planning approach are shown. This approach considers the loci of the handling points for the wrapping and the tying of the sheet. Especially, to avoid the complex motion of tying at the "Mamusubi" operation, the newly approach has been proposed. This approach divides the crossing operation into the two motions; one is the 2-dimensional motion and the other is the wrapped object rotation around vertical axis.

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An active base isolation system, which uses absolute vibration control technology, has been applied to the real full scale building. This building is the first active base isolation building all over the world. The absolute vibration control is an active vibration control method for base isolated structures to stay in the absolute space and to have vibration free environment, by applying control forces through actuators during earthquakes. Four 11001th hydraulic actuators, two in each horizontal direction, are installed in this building to reduce the seismic response to 1/10 of the conventional passive base isolation system.

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Robotic systems were used for responses to the Great East-Japan Earthquake. ROVs were used for victim search and port inspection in Minami-Sanriku Town and Rikuzen Takada City. An UGV called Quince was applied in Fukushima-Daiichi nuclear plant for radioactivity monitoring and dust sampling at the 2nd & 3rd floor in the second reactor building, and for installation of water level meter and water sampling at the B1 floor. This presentation introduces major robotic activities there, and considers future challenges to be studied.

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Dielectric elastomers have two operating modes; one is an actuator mode. The operating principle is to use the horizontal deformation of elastomers that is consequence of the synergistic combination of an electrostatic force and a repulsive force between the electrodes generated when a voltage difference is applied between the two electrodes. The other operating mode for dielectric elastomers is the generator mode, consisting of the reverse operation of the actuator function, storing the increase in electrostatic energy originating in the elastomer deformation by application of an external force. As this electric generation does not depend on the deformation speed, the generator working under this phenomenon can harvest natural energy sources, which have not been used, such as waves, river streams, the movement of human beings and animals, as well as of vehicles and buildings, to generate energy. In this paper, we discuss the potential of dielectric elastomers, a new energy transduction technology that can be used to harvest energy from the environment or human activities as well as save energy by making light and efficient motors and other devices.

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