283 research outputs found
OMAE2006-92233 FULL-SCALE MEASUREMENTS ON HULL RESPONSE OF A LARGE-CONTAINER SHIP IN SERVICE
ABSTRACT In order to investigate hull responses of post-Panamax container ships in the actual sea, full-scale measurements on hull responses of a post-Panamax container ship in service were conducted. In linear wave domain, the probability density distributions of hull responses obtained by full-scale measurements were compared with the Rayleigh distributions to check on the range of the applicability, and comparisons with the long-term distributions of the longitudinal stress obtained by full-scale measurements and the direct structural analyses based on the wave loads analyzed by using the linear 3D Rankine source method were made to verify the accuracy. In non-linear wave domain, the measured longitudinal stresses showed the asymmetry of vertical bending moment. The longterm distributions of hull responses, which have the high harmonic components, obtained by full-scale measurements were compared with the numerical results analyzed by using non-linear methods to investigate the non-linearity on hull responses of container ship
Puente de Suehiro –Japón
This bridge, of the braced type, is the longest in Japan. In its construction, serious technicel and utilisation difficulties had to be overcome, such as: the need of having a 205 m span and a height of 21 m, adverse conditions of the ground, etc.
Between several solutions submitted in the draft project that of a braced bridge was chosen with continuous box-type bridge deck divided into three stretches, and understructure with cylindrical steel box like a provisional jetty.
The bridge, located in the harbour area of Tokushima, was recently opened to traffic and its structure and erection are described in this article.Este puente, de tipo atirantado, es el más largo del Japón. En su construcción han tenido que vencerse serias dificultades técnicas y de uso, tales como: la necesidad de disponer de un vano de 205 m y una altura de 21 m, las condiciones adversas del terreno, etc.
Entre varias soluciones presentadas en el anteproyecto se eligió la de puente atirantado con tablero continuo en cajón, dividido en tres tramos, e infraestructura a base de cajón cilíndrico de acero corno dique provisional.
El puente, situado en la zona portuaria de Tokushima, ha sido abierto al tráfico recientemente y en este artículo se describe su estructura y montaje
Massive Desmoid with Keloid of the Anterior Neck
It is a case report of a massive recurrent desmoid and overlying keloid that simultaneously occurred inthe anterior neck. A 21-year woman presented with a 4-year history of a recurrent desmoid with a keloidof the skin in the anterior neck. The desmoid and overlying keloid were excised en-bloc with episternotomy.The defect was covered with the rotated pectoralis major muscle flap, and then resected episternum wasreturned after inactivation by liquid nitrogen. Skin defect of the anterior neck was covered with the free radialforearm flap. Although there is no evidence of recurrence of the desmoid a year later, recurrence of thekeloids is remarkable. As to our knowledge, it is rare that desmoids and keloids occur simultaneously. Itmight be an opportunity to explain a strange character of desmoids based on clinical nature of keloids
DEVELOPMENT OF A NEW FATIGUE TESTING MACHINE FOR HIGH FREQUENCY FATIGUE DAMAGE ASSESSMENT
ABSTRACT A new simple fatigue testing machine, which can carry out fast and low-cost fatigue tests of welded joints subject to wave with high frequency vibration, has been developed. This machine is designed for plate bending type fatigue tests, and wave load is applied by using motors with eccentric mass. Springing vibration is superimposed by attaching an additional vibrator to the test specimen, and whipping vibration is superimposed by an intermittent hammering. Fatigue tests which simulate springing and whipping by a conventional servo-type fatigue testing machines are very expensive and use a large amount of electricity. If one uses these conventional machines, it is difficult to simulate superimposed stress wave forms at high speed, and it takes long hours of testing to examine the high frequency effect. In contrast, it is found that fatigue tests can be carried out in fast, i.e. waves with 10Hz or higher frequency for out-of-plane gusset welded joint specimens with 12mm plate thickness by using the developed machine. The electricity to be used for fatigue tests could be minimal, for example one thousandth of that needed for conventional machines. These results demonstrate the superiority of the developed machine
The people mover project
This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2011.Cataloged from PDF version of thesis report.Includes bibliographical references (page 41).Kawsar-Ul-AlamAldrin Nippon BobbyMahfuza Khanom MousumiSyed Parvez ImranB. Electrical and Electronic Engineerin
Project commissioned by Japan Sports Agency Support for Formation of International Sport Academies 2014-2020 project report
『スポーツ庁委託事業スポーツ・アカデミー形成支援事業平成26年度~令和2年度事業報告書 』の英語
Another Science War: Fictitious Evidence on Women\u27s Fertility and the "Egg Aging" Panic in 2010s Japan
A rail network performance metric to capture passenger experience
For passenger rail operators worldwide a common concern is to better understand and improve passenger experience. Based on factors including train movement times and crowding, the Journey Time Metric and Disutility Metric can be used to quantitatively assess the journey experience of individual passengers. However an assessment of overall network performance is also desirable. This paper presents a whole-network assessment metric that captures passenger experience by aggregating and normalizing individual journey assessments. The newly developed metric is validated against customer satisfaction data measured in passenger surveys of the London Underground Limited Victoria Line with a statistically significant correlation (P < 0.005) between the predictions and the measurements. It is found that there is a high degree of correlation (ρ = 1.00, P < 0.005) between the network scores calculated using the new whole-network assessment metric with either the Journey Time Metric or Disutility Metric despite their different formulations and countries of origin. Through development of the new metric it is identified that many commonly used network assessment metrics (e.g. Public Performance Measure and the end-to-end journey time of passengers) are insensitive to crucial aspects of passenger experience. The newly developed metric could be used by rail operators to better select strategies for improving passenger experience
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