Asia concinnata secundum observationes academiae regalis scientiarum et nonnullas alias, et juxta annotationes recentissimas

Nimeke- ja tekijätiedot nimiönkehyksissä

Al magnifico s. Francesco Scaridino non mi parea cosa conueniente ch'io lasciasa andar fuora : l'Europa, con sa qiuta [quita] del Africa, et parte del Asia senza ch'iosse segnassi nel fronte nome honorato si onde essa non fusse isprezzata ó ...

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

[Asia et Africa]

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Carte géographique representant la Mer Méditerranée où la seconde partie du théatre de la guerre entre les Russes et les Turcs ... avec la Mer Noire où Pont Euxine et une partie de la Province Georgie en Asia

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Oost Indien : wassende-graade paskaart : vertoonende nevens het oostelyckste van Africa, meede de zeekusten van Asia, van C. de Bona Esperanca tot Eso, boven Japan

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Einer grossen richtigen Land-Charte : das Nord- und Ostlichen Teil von Europa und Asia in so weit solches das ganze Russische Reich mit Sibirien der grossen Tartarey in sich begreiffet ...

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

The Russian Empire in Europe, Asia and America

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Map of a part of eastern Asia to show the commercial position of the productive coal fields of Yesso, Japan

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Weld joint characteristics by nano-materials addition

The need for industries to remain competitive in the welding business, has created necessity to develop innovative processes that can exceed customer’s demand. Significant development in improving weld efficiency, during the past decades, still have their drawbacks, specifically in the weld strength properties. The recent innovative technologies have created smallest possible solid material known as nanomaterial and their introduction in welding production has improved the weld strength properties and to overcome unstable microstructures in the weld. This study utilizes a qualitative research method, to elaborate the methods of introducing nanomaterial to the weldments and the characteristic of the welds produced by different welding processes. The study mainly focuses on changes in the microstructural formation and strength properties on the welded joint and also discusses those factors influencing such improvements, due to the addition of nanomaterials. The effect of nanomaterial addition in welding process modifies the physics of joining region, thereby, resulting in significant improvement in the strength properties, with stable microstructure in the weld. The addition of nanomaterials in the welding processes are, through coating on base metal, addition in filler metal and utilizing nanostructured base metal. However, due to its insignificant size, the addition of nanomaterials directly to the weld, would poses complications. The factors having major influence on the joint integrity are dispersion of nanomaterials, characteristics of the nanomaterials, quantity of nanomaterials and selection of nanomaterials. The addition of nanomaterials does not affect the fundamental properties and characteristics of base metals and the filler metal. However, in some cases, the addition of nanomaterials lead to the deterioration of the joint properties by unstable microstructural formations. Still research are ongoing to achieve high joint integrity, in various materials through different welding processes and also on other factors that influence the joint strength.

Environmental Challenges in the Joint Border Area of Norway, Finland and Russia

This report examines the human impact on the subarctic environment of the joint border area of Norway, Finland and Russia. The aim is to present the current state and recent changes that have taken place in the region. The main threat to the environment is the Pechenganikel mining and metallurgical industrial combine in the towns of Nikel and Zapolyarny in the Kola Peninsula. Emissions from this complex include high levels of heavy metals, persistent organic pollutants and sulfur dioxide. Pollution, along with climate change, water level regulation and other anthropogenic effects, has affected the aquatic ecosystems in the joint border area. The main heavy metals in the area are copper and nickel, the highest concentrations of which are measured near the combine. Direct discharge of sewage into the river continues and airborne heavy metal particles are also deposited to areas farther away. Climate changeinduced increase in temperature and precipitation in the Kola Peninsula is evident. Water level regulation with seven hydropower plants in the Pasvik River have changed it into a series of lakes and lake-like reservoirs. This report discusses modelling, which was enabled to estimate the effect of climate change on Lake Inarijärvi and the Pasvik River hydrology, water level fluctuation and ecology and to follow the sulfur dioxide emissions emitted from the Pechenganikel. Effects of pollution on the nature and concentrations of the main pollutants were studied and climate change in the border area and its effects on the ecology were estimated. Also the effects of water level regulation on the ecological status of the aquatic ecosystems were addressed.