Jassy Achievements Regarding the Casting of Art Pieces for Artificial Lighting in Orthodox Churches

In this paper are presented some art pieces, used in orthodox religion for artificial general lighting. These pieces, realized at SC RANCON SRL Jassy, present a special importance, because they join harmoniously the functionality principle with the artistic and architectural concepts. Thus contribute at the achievement of sobriety, equilibrium and solemnity ambiance from spiritual service realized in Moldavian orthodox churches

Aspects Regarding the Tradition of Bell Manufacture and Use

The paper presents the casting art of bells, their spiritual significance, as well as their evolution over time. The bells may be made of both metallic or/and nonmetallic materials, of various shapes and sizes. While producing the adequate sounds, bells have found a universal use: they served as musical instruments, sound devices used in religious rituals, for communication and warning signals. In the European world, the progress and the performances regarding of bells development are owed to their use in the Christian Church rituals

Finite Element Analysis of Equal Channel Angular Pressing of Al-Mg 5083 Alloy

Bulk nanostructured materials represent the application of nanotechnology in the engineering material area. Severe Plastic Deformation (SPD) and in particular Equal Channel Angular Pressing (ECAP) are efficient and low cost top-down methods for producing ultrafine or nanostructured bulk materials. Alluminum alloys are very popular materials used for production of ultrafine-grained and nanomaterials by SPD. Understanding both the contact phenomenon at the interface between die and the workpiece in terms of material flow and phenomena associated with strain and forming load in ECAP process becomes important. In this paper, a tridimensional Finite Element Analysis of ECAP was performed for Al-Mg 5083 alloy

Composite Based on AlMg Alloys Obtained by Gas Insufflation

Composite materials are the most advanced class of materials invented and produced by humans in modern times as well as a challenge for the future in the field of scientific and technological performance. They are made up of at least two phases of different nature which are so combined to form a new material with a superior combination of properties. They are generally materials with unusual performances on the relationship between properties and specific gravity. Composites are multiphase materials with distinct and well-defined interface between the constituent phases ensuring a transfer of property but can lead to obtaining a product with exceptional performance from the starting material. Stabilized Aluminum Foams (SAF) are new class of materials with low densities and novel physical, mechanical, thermal, electrical and acoustic properties. They offer potential for lightweight structures, for energy absorption, and for thermal management; and some of them, at least, are cheap. Metal foams offer significant performance gains in light, stiff structures, for the efficient absorption of energy, for thermal management and perhaps for acoustic control and other, more specialized, applications. They are recyclable and nontoxic. They hold particular promise for market penetration in applications in which several of these features are exploited simultaneously. Metal foams are metal matrix composites (MMC) characterized by: higher specific properties, high capacity vibration damping and sound, mechanical energy absorption etc. The wide range of possible properties can lead to innovative applications, which is a strong driving force for the improvement of metal foam production technologies. Investigated and studied materials are composite of aluminum alloy matrix where the stabilisation of the gas bubbles has been done by ceramic particle added. To obtain SAF we have focused research on Al-Mg alloys with different concentrations of magnesium and silicon carbide (SiC). To obtain these materials has been chosen a different gas blowing method (N2, SO2 şi C4H10). It was observed that the best results in terms of pore volume gave the blowing with C4H10. The samples obtained were analyzed by electron microscopy

Statistical indicator system for forestry and forest exploitation

One of the main objectives of the development of the Romanian statistical indicators system for forestry and forest exploitation was the harmonization of the statistical information characterizing the forest area and other lands covered by forest vegetation with the European forest statistical system standards (EUROSTAT) and other international bodies (United National Organization for Agriculture and food - FAO, Organization for Economic Cooperation and Development - OECD, International Tropical Timber Organization). During the development of the Romanian system of statistical indicators for forestry and forest exploitation it was considered that it should present the highest degree of representativity at all reference levels (local, regional-county and national). Also, one of the aims was that the system should allow the establishment and appropriate knowledge on the indicators as content, legislative framework, political and environment context, establishing methodology and available data sources, possibilities to establish them and the presentation method for each indicator. This system contains 25 statistical indicators included in 6 groups according to their content, with special reference to the general characteristics of the forests and other wooded lands, ownership over forest lands, size and structure of the growing stock, forest yield, regeneration and increase of forest area and other wooded lands, area with felling and the harvested wood volume, the phytosanitary status and wood and non-wood products harvested. In order to establish the statistical indicators for forestry and forest exploitation a general plan for collecting the information was developed based on statistical surveys, monitoring studies and administrative reports. These methods of collecting information are organized and planned so that they contain the entire reference population and the content of the indicators set which will be established. These components of the general plan for information collection refers to the statistical reference populations , the periods for data collecting, representativity level (county, national) as we as to the content (structure) of the reports. According to the content, the statistical forest indicators, harmonized with the ones in the statistical systems of the European Union and FAO, shows in the same time the specific cha-racteristics of the Romanian system for the sustainable development of the forest resource

Statistical indicator system for forestry and forest exploitation

One of the main objectives of the development of the Romanian statistical indicators system for forestry and forest exploitation was the harmonization of the statistical information characterizing the forest area and other lands covered by forest vegetation with the European forest statistical system standards (EUROSTAT) and other international bodies (United National Organization for Agriculture and food - FAO, Organization for Economic Cooperation and Development - OECD, International Tropical Timber Organization). During the development of the Romanian system of statistical indicators for forestry and forest exploitation it was considered that it should present the highest degree of representativity at all reference levels (local, regional-county and national). Also, one of the aims was that the system should allow the establishment and appropriate knowledge on the indicators as content, legislative framework, political and environment context, establishing methodology and available data sources, possibilities to establish them and the presentation method for each indicator. This system contains 25 statistical indicators included in 6 groups according to their content, with special reference to the general characteristics of the forests and other wooded lands, ownership over forest lands, size and structure of the growing stock, forest yield, regeneration and increase of forest area and other wooded lands, area with felling and the harvested wood volume, the phytosanitary status and wood and non-wood products harvested. In order to establish the statistical indicators for forestry and forest exploitation a general plan for collecting the information was developed based on statistical surveys, monitoring studies and administrative reports. These methods of collecting information are organized and planned so that they contain the entire reference population and the content of the indicators set which will be established. These components of the general plan for information collection refers to the statistical reference populations , the periods for data collecting, representativity level (county, national) as we as to the content (structure) of the reports. According to the content, the statistical forest indicators, harmonized with the ones in the statistical systems of the European Union and FAO, shows in the same time the specific cha-racteristics of the Romanian system for the sustainable development of the forest resource

Statistical Indicator System for Forestry and Forest Exploitation

Each indicator presented in this paper contains a description, political and environmental context, available data, reporting period, methodological framework, presentation form and conclusions. All countries of the European Union are reporting today forest statistics based on the indicators I and my colleagues worked with on this project