Search results for "Vessel"

A methodology for the control of the residual lifetimes of carbon fibre reinforced composite pressure vessels

2005

International audience; Pressure vessels must be periodically proof tested. Traditional techniques for metal vessels are inapplicable for composite vessels as the latter do not break by crack propagation so that the reasoning behind the traditional testing procedures is not appropriate. Damage accumulation leading to the degradation of a composite vessel is by fibre failure. Fibres show a wide distribution in strengths and loading a composite inevitably breaks some. The method which has been developed is supported by an analysis of delayed fibre failure due to the relaxation of the resin around fibre breaks. This provokes overloading of intact fibres neighbouring breaks. The time until a cr…

Effect of mesoangioblast extracellular vesicle on cell migration and vessel formation of human endothelial cell

2015

CFD simulation of a mixing-sensitive reaction in unbaffled vessels

2008

Stirred tanks are widely used in the process industry, often to carry out complex chemical reactions. In many of such cases the perfect mixing hypothesis is not applicable for modelling purposes, and more detailed modelling approaches are required in order to accurately describe the reactor behaviour. In this work a fully predictive modelling approach, based on Computational Fluid Dynamics, is developed. Model predictions are compared with original experimental data obtained in un unbaffled stirred vessel with a parallel-competitive, mixing sensitive reaction scheme. Notably, satisfactory results are obtained at all injection rates with no recourse to micro-mixing model, thus confirming the…

Association between resting blood pressure and maximal blood pressure response to exercise and arterial health

2022

We investigated the longitudinal associations of blood pressure, cardiorespiratory fitness, and arterial stiffness among children. Arterial stiffening has been repeatedly shown to be a cardiovascular mortality predictor and can be observed early in childhood. As such, it is crucial to understand whether a child’s blood pressure, fitness level, and body composition can predict early signs of atherosclerosis and arterial stiffening. The current study examined the relationship between blood pressure, cardiorespiratory fitness, and arterial stiffness over time in children, using data from the Physical and Nutrition in Children (PANIC) Study. It is a physical and dietary intervention study condu…

Visualising maritime vessel open data for better situational awareness in ice conditions

2018

Situational awareness of maritime vessels in ice conditions is important for the operation of supply chains. In the artic sea areas, the ice conditions pose a major challenge for maritime vessels getting stuck in the ice and being significantly delayed in arrival to harbor. Data science and open data provide new opportunities to overcome these challenges. This paper introduces available open data sources and data visualizations that can be used to develop applications, for example, for detecting maritime vessel collision, predicting estimated time of arrival to harbor, as well as maritime vessel route optimization in ice conditions. The paper begins by introducing available open data source…

Wood formation in pedunculate oak and its relation with climatic factors in Latvia

2013

Šajā darbā ir analizēta parastā ozola (Quercus robur L.) augšanas saistība ar klimatiskajiem faktoriem Latvijā (43 vietas), izmantojot dendrohronoloăijas un dendroekoloģijas metodes. Klimata ietekmes novērtējumam, izmantoja divus atšķirīgus gadskārtu mērījumus: gadskārtu platumu un pavasara koksnes traheju dobumu laukumu. Ozola augšana uzrādīja atšķirības gar austrumu-rietumu gradientu saistībā ar klimata kontinentalitāti. Balstoties uz šo gradientu Latvijas teritoriju var iedalīt divās daļās (rietumu un austrumu reģionā). Gadskārtu platumu rietumu reģionā, galvenokārt, ietekmēja pavasara un vasaras gaisa temperatūra, bet austrumu reģionā klimatisko faktoru, kas ir saistīti ar sausumu vasar…

La verrerie médiévale issue des fouilles du chœur de l'ancienne abbatiale Saint-Pierre de Baume-les-Messieurs (Jura)

2013

National audience; Dans le cadre du Programme Collectif de Recherche sur Les monastères en Europe occidentale (Ve-Xe siècle). Topographie et structures des premiers établissements en Franche-Comté et en Bourgogne, codirigé par Sébastien Bully et Christian Sapin (UMR ARTeHIS 6298, Cnrs), l'ancienne abbatiale Saint-Pierre à Baume-les-Messieurs (Jura) a fait l'objet d'une fouille programmée de novembre 2011 à janvier 2012. Suite à une série de campagnes d'archéologie du bâti, de sondages et de prospections géophysiques engagés depuis 2007, la question des origines du monastère et de la nature des occupations antérieures à l'église romane a motivé l'ouverture d'une fouille dans le chœur de l'éd…

Sisävesien mikrotonnisto : pienet höyrylaivat Suomen ja erityisesti Kainuun sisävesiliikenteessä 1870-luvulta 1960-luvulle

2016

The significance in Finland of shipping on inland waterways has been great. This is due to the topography of the country with its many lakes and to the fact that the vast waterways in their natural state were easily navigable. The construction of canals resulted in even more extensive interconnected inland waterways. This study explores the tasks of the steamships plying these internal waterways, their numbers and significance, and also changes and the reasons for these between different inland waterways, as regards different types of vessels and shipowners in the period from the 1870s to the 1960s. Special attention is paid to steamships smaller than 19 net register tons. This limit was ch…

Advances in Wine Fermentation

2021

Fermentation is a well-known natural process that has been used by humanity for thousands of years, with the fundamental purpose of making alcoholic beverages such as wine, and also other non-alcoholic products. From a strictly biochemical point of view, fermentation is a process of central metabolism in which an organism converts a carbohydrate, such as starch or sugar, into an alcohol or an acid. The fermentation process turns grape juice (must) into wine. This is a complex chemical reaction whereby the yeast interacts with the sugars (glucose and fructose) in the must to create ethanol and carbon dioxide. Fermentation processes to produce wines are traditionally carried out with Saccharo…

Tumor targeting of baculovirus displaying a lymphatic homing peptide.

2008

Background Tumor-associated cells and vasculature express attractive molecular markers for site-specific vector targeting. To attain tumor-selective tropism, we recently developed a baculovirus vector displaying the lymphatic homing peptide LyP-1, originally identified by ex vivo/in vivo screening of phage display libraries, on the viral envelope by fusion to the transmembrane anchor of vesicular stomatitis virus G-protein. Methods In the present study, we explored the specificity and kinetics of viral binding and internalization as well as in vivo tumor homing of the LyP-1 displaying virus to elucidate the applicability of baculovirus for targeted therapies. Results We demonstrated that th…