Sample records for zosen sangakukai rengo

  1. Summary of monographs made public in the 93rd meeting by West Japan Society of Naval Architects. Lecture meeting sponsored jointly by three shipbuilding societies for fall in 1996; Seibu zosenkai dai 93 kai reikai ronbun kogai. 1996 nendo shuki zosen sangakukai rengo koenkai



    A lecture meeting sponsored by the three ship building societies for fall in 1996 was held on November 14 and 15, 1996 at the Hiroshima Prefecture Information Plaza, where 16 monographs were presented. With regard to fluid dynamic problems in vessels, reports were given on experimental studies on performance of tandem hydrofoils in highspeed regions, solution methods for non-steady two-dimensional hydrofoil problems by using a simple panel method, a consideration on lateral inclination during maneuvering operation, and a new prediction approach for ships maneuvering hydrodynamics. With respect to structural material strength, reports were made on one consideration on buckling and plastic breakdown strength characteristics of surface fine grain steel plates, a study on buckling and final strength of square plates subjected to load in combined planes, and one consideration on evaluating life to generate corrosion fatigue cracking. Other reports were also given on a theoretical study on sea shock load acting on two-dimensional floating bodies, a study on a method for setting design hydrographic conditions, and a numerical simulation on flow and density field in the Kagoshima bay in summer by using a multi-layer model.

  2. Summary of the papers of the 95th Meeting of the West Japan Society of Naval Architects. Joint meeting of three shipbuilding societies in fall, fiscal 1997; Seibu Zosenkai dai 95 kai reikai ronbun gaiko. 1997 nendo shuki zosen sangakkai rengo koenkai



    The paper summarized the papers on the following: estimation of the propulsion performance by the surface vortex lattice method using model ship flow field data; wave-making resistance calculation and performance estimation by the Rankine source method; calculation method of wave-making resistance of Catamaran and solution method of the hydrofoil problem using the convenient panel method; study of estimation of hydrodynamic forces acting on ship in maneuvering motion; study of the combined plant using generator use diesel exhaust heat; mathematical structure of the ocean container transport system; developmental OTEC plants in Indonesia. In relation to structural dynamics/strength problems, reports were made on the hull longitudinal strength theory, FEM modeling in analyses of buckling/plasticity collapse of deflection panels, etc. Further reported were a consideration of the use classification of hull use steel sheets considering fracture toughness, and changes of aspect ratios of small surface cracks emanating from a toe of corner boxing. Concerning ocean structures, there are experimental studies on vibration in water of a semi-spherical shell fixed in water, and a behavior of huge floating structures in regular waves

  3. Energy policy and trend in European Union (EU). Part 2; Europe rengo (EU) no energy seisaku, doko

    Mezawa, S. [The Institute of Energy Economics, Tokyo (Japan)


    This paper describes the recent energy policy in the EU region. In 1992, the EU Commission employed a strategy for realizing a single energy market. In 1994, the Council of Ministers adopted directives for liberating the permission condition of survey, exploration and development of hydrocarbons. The EU Commission employed a three stage approach for liberating the gas and electric power market. The Transit and Pricing Directives in the first stage consists of three directives of electric power transit, gas transit and pricing transparency. In the second stage, Third-Party Access (TPA) system is to be introduced. An analysis in the third stage depends on the results in the second stage. Are also described the CO2 and energy tax, emission of greenhouse gases, and integrated pollution prevention and control. Furthermore, the energy efficiency and the Trans-European Networks are described. Finally, are referred the regulations which control the activities of energy companies, and the national assistance policies in the energy division.

  4. Preprint of the 40th material study joint lecture of Science Council of Japan; Dai 40 kai Nippon gakujutsu kaigi zairyo kenkyu rengo koenkai maezurishu



    The paper stated mostly topics from special lectures. Composite materials have a lot of potentialities, and there are larger expectations in flexible and high-strength soft composites rather than the conventional high rigidity ones. As to micro-machines, the problems are on mechanical property of the element, environment/friction/fracture/life, etc. and the evaluation method of the characteristics was studied. Concerning the research and development of the intellectual structure system, the introductive study has entered the second year. Ultimately, structures have functions similar to those of the living organism had, and conduct self-diagnosis, self-repair and autonomous-response. Railroad structures receive regular inspections according to the rule, and a half of the objects for the inspection are cracks, unbonding and weathering of concrete. With the Hanshin Awaji great earthquake especially, the anti-earthquake reinforcement has been expedited. In various kinds of materials, the finer the crystal particle becomes, the greater the high temperature deforming ability becomes. When the particle size is below the critical particle size, it shows superplasticity. The study is advancing. As to high density secondary batteries, introduced especially were Ni-hydrogen batteries and Li batteries.

  5. Preprint of the Fall 1996 Meeting of the Society of Naval Architects of Japan; Nippon zosen gakkai (1996 nen) shuki koen ronbun maezuri



    Among the papers made public in the Fall 1996 Meeting of the Society of Naval Architects of Japan, 35 papers pertaining to structure, materials, welding, construction and design were summed up as the second book. Concerning structure and materials relations, the book included papers titled An elasto-plastic analysis and the resisting mechanism during large deflection of thin shell structures; Collapse behaviour of stiffened plating under thrust; Post-yield behavior of ship plates; Strength of aluminum alloy members for hull structures; etc. With relation to welding and construction relations, Fatigue strength evaluation method using local and structural stress concentration factors for weld toe of welded joint; Practical evaluation of CTOD for highly strain concentrated structural components; Evaluation of HAZ fracture toughness of welded joints with strength mis-matching by the local approach; etc. As to the design relation, A study of structural optimization design system based on product model in shipbuilding; Basic studies on design supporting system of offshore structures; etc.

  6. Preprint of the papers of the Spring 1997 Meeting of the Society of Naval Architects of Japan; Nippon zosen gakkai (1997 nen) shunki koen ronbun maezuri



    This is a proceedings of the Spring 1997 Meeting of the Society of Naval Architects of Japan. It includes 19 papers on structures, materials, welding, building, design and machinery of ships and floating structures. For the automation of ocean surveys, a development is conducted of cruising-type autonomous underwater vehicles (AUV). The following are important studies: `Development of a small cruising-type AUV and training of constant altitude swimming,` `Visual feedback navigation for cable tracking by autonomous underwater vehicles,` and `Development of the hull inspection robot (RTV-SHIP).` Large floating bodies for the ocean space utilization are being proposed, and the following are useful for strength analyses: `Structural analyses of very large semi-submersibles in waves,` `An investigation on the dynamic response and strength of very long floating structures by beam modeling on an elastic foundation` relating especially to pontoon-type floating bodies with no mooring, and `A basic investigation on deflection wave propagation and strength of very large floating structures.` The title `Temperature effect on corrosion fatigue strength of coated ship structural steel` is very useful for prevention of the hull corrosion.

  7. Temperature effect on corrosion fatigue strength of coated ship structural steel; Zosen`yoko tosozai no fushoku hiro kyodo ni okeru ondo no eikyo

    Takanashi, M.; Fuji, A.; Kojima, M.; Kitagawa, M. [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan); Kobayashi, Y. [Ship Research Inst., Tokyo (Japan); Kumakura, Y.


    The corrosion fatigue life was obtained using uncoated and tar epoxy resin specimens to clarify the temperature effect. The life curve for corrosion fatigue of machined and uncoated steel in the air and sea was obtained. The fatigue strength of uncoated steel largely decreases in the sea and breaks even in the nominal stress range of less than 1/2 of the fatigue limit in the air. The effect of temperature on the coated steel is represented by a corrosion coefficient. The steel coated at 25{degree}C is 1/1.03 to 1/1.13 at 40 to 60{degree}C. This showed that the fatigue strength decreases when the temperature exceeds 25{degree}C. However, it has not such tendency and significance that are represented quantitatively. There is a slight difference in the short-life area between the crack generation life and breaking life. However, the long-life area has no significance that influences the whole evaluation. In the long-life corrosion fatigue, the crack occurs from the corrosion pit due to the exposure below the coated film and progresses in the base material before the coated film is destroyed. The effect of the corrosion pit remarkably appears at a low-stress level. 14 refs., 14 figs., 4 tabs.

  8. Preprint of the Fall 1996 Meeting of the Society of Naval Architects of Japan; Nippon zosen gakkai (1996 nen) shuki koen ronbun maezuri



    Among the papers made public in the Fall 1996 Meeting of the Society of Naval Architects of Japan, 40 papers pertaining to resistance, propulsion, motion, and ocean were summed up as the first book. Concerning the resistance relation, the book included papers titled Analysis of wave-making characteristics of ship form by Mathieu function expansions of wave-amplitude functions derived from wave analysis; Studies on surface tension effect on free surface flow around floating models; Numerical computation of viscous flows with free surface around a series 60 model; etc. As to the propulsion and motion, Design system for optimum contra-rotating propellers; Performance of the patrol icebreaker `TESHIO` in ice-covered waters; A study on effect of bow shape on icebreaking resistance; Time domain analysis of ship response in directional irregular wave; Study on prediction method for hydrodynamic force acting on a ship hull in swaying motion; etc. With relation to the ocean relation, On statistical properties of wave amplitudes in stormy sea; Statistical properties of encounter wave grouping phenomena in following and quartering seas; Development of hybrid type on board measuring system for directional wave spectrum; etc.

  9. Proceedings of the Spring Meeting of the Society of Naval Architects of Japan (1996). Part 1. Resistance, propulsion, advance, and ocean; Nihon zosen gakkai (1996 nen) shunki koen ronbun maezuri. 1. Teiko, suishin shindo, kaiyo



    This is a proceedings of the Spring Meeting of the Society of Naval Architects of Japan made public on May 15 and 16, 1996. In the basic research, the following were included: Numerical simulation for submerged body fitted with hydrofoil; Simulation of tandem hydrofoils by finite volume method with moving grid system; Determination of the unknown method surface of planning plates by a formulation based on high aspect ratio approximation; Numerical simulation of a bubble flow by modified density function method, etc. As to floating bodies, Response characteristics of a long life type floating offshore airport in waves (3rd report: Response due to short waves and an attempt of active inclination control); Feasibility design of a floating airport and estimation of environmental forces on it; On the estimation method of hydrodynamic forces acting on a huge floating structure, etc. In addition, A numerical prediction with `DMDF` model of pack ice motion in the Okhotsk Sea; Development of an observation robot `Flying Fish` for comprehensive measurements of ocean environment; Water entry simulation of free-fall lifeboat, etc.

  10. Proceedings of the Spring Meeting of the Society of Naval Architects of Japan (1996). Part 2. Structure, materials, welding, construction, and design; Nihon zosen gakkai (1996 nen) shunki koen ronbun maezuri. 2. Kozo, zairyo, yosetsu, kosaku, sekkei



    This is a proceedings of the Spring Meeting of the Society of Naval Architects of Japan made public on May 15 and 16, 1996. In the basic research, the following are included: Basic studies on computer aided concurrent engineering for hull structure design and piping design; Fundamental study on the new method to estimate vibration level on a ship; Flat plate approximation in the three-dimensional slamming; Development of new finite element by source method, etc. As to fracture and cracks, Equivalent CTOD concept based on the local approach and its application to fracture performance evaluation of welded joints; Fracture mechanical modeling of brittle crack propagation and arrest of steel; An evaluation method for ductile crack propagation in pre-strained plates; Multiple fatigue cracks propagating in a stiffened panel, etc. Relating to fatigue strength, Fatigue life estimation of welded joints of an aluminum alloy under superimposed random load waves; Study on unified fatigue strength assessment method for welded structure, etc.

  11. JV Task 126 - Mercury Control Technologies for Electric Utilities Burning Bituminous Coal

    Jason Laumb; John Kay; Michael Jones; Brandon Pavlish; Nicholas Lentz; Donald McCollor; Kevin Galbreath


    The EERC developed an applied research consortium project to test cost-effective mercury (Hg) control technologies for utilities burning bituminous coals. The project goal was to test innovative Hg control technologies that have the potential to reduce Hg emissions from bituminous coal-fired power plants by {ge}90% at costs of one-half to three-quarters of current estimates for activated carbon injection (ACI). Hg control technology evaluations were performed using the EERC's combustion test facility (CTF). The CTF was fired on pulverized bituminous coals at 550,000 Btu/hr (580 MJ/hr). The CTF was configured with the following air pollution control devices (APCDs): selective catalytic reduction (SCR) unit, electrostatic precipitator (ESP), and wet flue gas desulfurization system (WFDS). The Hg control technologies investigated as part of this project included ACI (three Norit Americas, Inc., and eleven Envergex sorbents), elemental mercury (Hg{sup 0}) oxidation catalysts (i.e., the noble metals in Hitachi Zosen, Cormetech, and Hitachi SCR catalysts), sorbent enhancement additives (SEAs) (a proprietary EERC additive, trona, and limestone), and blending with a Powder River Basin (PRB) subbituminous coal. These Hg control technologies were evaluated separately, and many were also tested in combination.

  12. Tailoring therapy for heart failure: the pharmacogenomics of adrenergic receptor signaling

    Femminella GD


    Full Text Available Grazia Daniela Femminella,1 Vincenzo Barrese,2,3 Nicola Ferrara,1,4 Giuseppe Rengo4 1Department of Translational Medical Sciences, Federico II University, Naples, Italy; 2Department of Neuroscience, Reproductive Science and Odontostomatology, Federico II University, Naples, Italy; 3Division of Biomedical Sciences, St George’s University of London, London, UK; 4”Salvatore Maugeri” Foundation – IRCCS – Scientific Institute of Telese Terme, Telese Terme, Benevento, Italy Abstract: Heart failure is one of the leading causes of mortality in Western countries, and β-blockers are a cornerstone of its treatment. However, the response to these drugs is variable among individuals, which might be explained, at least in part, by genetic differences. Pharmacogenomics is the study of genetic contributions to drug response variability in order to provide evidence for a tailored therapy in an individual patient. Several studies have investigated the pharmacogenomics of the adrenergic receptor system and its role in the context of the use of β-blockers in treating heart failure. In this review, we will focus on the most significant polymorphisms described in the literature involving adrenergic receptors and adrenergic receptor-related proteins, as well as genetic variations influencing β-blocker metabolism. Keywords: adrenergic system, polymorphisms, β-blockers, functional recovery

  13. In Vitro and in Vivo Evaluation of the Antioxidant and Prooxidant Activity of Phenolic Compounds Obtained from Grape (Vitis vinifera Pomace

    Milena Cotoras


    Full Text Available The antioxidant and/or prooxidant ability of extracts obtained from wine waste were analyzed using in vitro and in vivo assays. Cyclic voltammetry was used as the in vitro assay to determine the antioxidant and/or prooxidant properties and, the in vivo effect on mycelial growth of the fungus Botrytis cinerea was evaluated. In addition, the prooxidant activity was evaluated by intracellular oxidation of compound 2,7-dichlorodihydrofluorescein diacetate (DCFH-DA in B. cinerea. The extracts used in this study were obtained from grape pomace of Cabernet Sauvignon, Carménère and Syrah varieties from the Misiones de Rengo Vineyard by simple extraction, using methanol/HCl 1% (v/v, ethanol 70% (v/v, or Soxhlet extraction. According to the results obtained, gallic acid was the most represented phenolic compound independent of grape variety and extraction method. In addition, vanillic acid; protocatechuic acid, syringic acid, quercetin and kaempferol were found in the extracts. From this study it was possible concluded that, depending of the method of extraction of the grape residues and the grape variety (Cabernet Sauvignon, Carménère and Syrah, the extracts showed antioxidant and/or prooxidant activity. However, no correlation can be established between the anodic oxidation potentials of the extracts and their effect on the fungus B. cinerea.

  14. Quantification of glacier contribution to runoff in a Chilean Andean basin with snow-glacier driven regime

    Bobadilla, M. Paz; Vargas, Ximena


    Glaciers in mountainous regions play an important role in the basins located in such landscape. However, assessing their contribution is a complex task due to difficulties in taking appropriate measurements that could help to clarify this aspect. Most of the glaciers in the Andes within Chilean territory have shown glacier recession, which added to the hydric stress in the zone, making interesting to quantify their contribution. The Cachapoal river basin is located in the Andes in central Chile. The study area is defined by the Cachapoal en Puente Termas gauge, covering approximately 2448 km2, where 9% is cover by glacier. The basin shows a snow driven hydrological regime, strongly conditioned by the presence of glaciers, which are distributed in 4 of the 6 main sub-basins. The basin hydrology is modeled in natural regime at daily scale using the WEAP model (Water Evaluation And Planning System), using scarce meteorological information as input. A simplified glacier module is included to characterize its processes and estimate its contribution to the total runoff. The glacier contribution to runoff is studied, differentiating between normal, wet and dry years, which are defined by exceedance probability intervals of the annual precipitation using 44 years of information of the Rengo gauge. Thus, a normal year shows an annual precipitation between 473 mm and 622 mm, while the annual rainfall in a wet year is higher than a normal year and lower in a dry year. The results show that glacier contribution to the total runoff is significant, reaching 42%, 65% y 24% in the summer period in a normal, dry and wet year respectively. The glacier contribution becomes more significant in dry years, where it is estimated to contribute 40% of the mean annual streamflow.

  15. Pressure injuries in elderly with acute myocardial infarction

    Komici K


    Full Text Available Klara Komici,1 Dino F Vitale,2 Dario Leosco,1 Angela Mancini,1 Graziamaria Corbi,3 Leonardo Bencivenga,1 Alessandro Mezzani,4 Bruno Trimarco,5 Carmine Morisco,5 Nicola Ferrara,1,2 Giuseppe Rengo1,2 1Division of Geriatrics, Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy; 2Cardiac Rehabilitation Division, Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese Terme (BN, Telese Terme, Italy; 3Department of Medicine and Health Sciences, University of Molise Campobasso, Campobasso, Italy; 4Cardiac Rehabilitation Division, Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Veruno, Veruno, Italy; 5Division of Cardiology, Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy Objectives: To assess pressure injury (PI incidence among patients hospitalized for acute myocardial infarction (AMI in an intensive coronary care unit (ICCU and to detect the impact of specific risk factors on the development of PI in this clinical setting.Patients and methods: Prospective cohort study in ICCU setting. Patients admitted for AMI: patients mean age 67.5±11.5 years (n=165. Norton Scale, Mini Nutritional Assessment (MNA, demographic, clinical and biochemical data collected at the time of ICCU admission have been tested in a logistic model to assess the odds ratios (ORs of PI risk development. The jackknifed area under the receiver operating characteristic curve (AUC and the decision curve analysis have been employed to assess the additive predictive value of a factor.Results: Twenty-seven (16.3% patients developed PIs. An increased PI risk was associated with advanced age (OR =2.5 every 10-year increase; 95% CI =1.1–5.7, while probability of PI development was reduced in patients with higher left ventricular ejection fraction (LVEF (OR =0.4 every 5% increase; 95% CI =0.24–0.66, MNA score (OR =0.65 every unit change; 95% CI =0.44–0.95 and Norton Scale score

  16. Revisión de las aplicaciones de la electroerosión por penetración al mecanizado de cerámicas conductoras

    Puertas-Arbizu, I.


    Full Text Available The term of technical ceramics or advanced ceramics is applied to a great emerging variety of materials, which have excellent properties such as hardness, wear resistance, corrosion resistance, mechanical strength, in a wide range of temperature , among others. Nevertheless, materials with high quality performance are also difficult to manufacture, and ceramic materials are not the exception. The majority of the ceramic materials are not conductive, but however, the use of new metallic pigments and compounds makes it feasible to become them conductive and, therefore, these ceramics can be machined by the EDM process. The present work is a review of the different applications of technical ceramics, concentrating on the conductive ceramics. Moreover, the machining processes that can be employed for their manufacturing are to be shown, focusing attention on the die sinking EDM process.

    El término de materiales cerámicos técnicos o materiales cerámicos avanzados se aplica a una gama emergente de materiales, que tienen unas propiedades excelentes de dureza, resistencia al desgaste, resistencia mecánica, resistencia a la corrosión, en un amplio rengo de temperatura. Sin embargo, los materiales con buenas prestaciones suelen ser difíciles de procesar y los materiales cerámicos no son la excepción. Aunque la mayor parte de los materiales cerámicos no son conductores, gracias a la utilización de determinados aditivos metálicos es posible hacer que lo sean y, por lo tanto, éstos pueden ser mecanizados por procesos de electroerosión. El presente trabajo es una revisión de las diferentes aplicaciones de los materiales cerámicos, haciéndose especial hincapié en los materiales cerámicos conductores, así como de los procesos de mecanizado que se pueden emplear en su fabricación, incidiendo fundamentalmente sobre el proceso de la electroerosión por penetración.