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Asociația Ad Astra a anunțat câștigătorii Premiilor Ad Astra 2022: http://premii.ad-astra.ro/. Proiectul și-a propus identificarea și popularizarea modelelor de succes, a rezultatelor excepționale ale cercetătorilor români din țară și din afara ei.
Publicatii proprii
Trends in Interdisciplinary Studies Revealing Porphyrinic Compounds Multivalency Towards Biomedical Application
Over the past few decades, many research groups have set as main target to investigate biological uses of porphyrins. To understand the trend of these applications, and most important to be able to predict some of the future steps it is useful first to review the general physical properties of this essential class of molecules, in parallel with the presentation of main aspects of the involved biomedical fields. Therefore, the first section of this
Read moreRestriction Between Cohomology Algebras of Blocks of Finite Groups
Let k be an algebraically closed field of characteristic p and G be a finite group. Let N be a normal subgroup of G and c be a G-stable block of kN. We shall discuss the cohomology algebra of the block c, defined by M. Linckelmann and, in this case a generalized block cohomology which can be defined using some generalized Brauer pairs, denoted (c, G)-Brauer pairs, which are introduced by R. Kessar and R. Stancu. We also analyze the restriction map
Read moreThe vesture as an interface between the human body and the environment
As a result of the technological evolution which led to the discovery of new fibres, the materiality of the garment, its fibrous composition, is a subject debated for many years. The new fibres have to meet the ever changing requirements of the individual, which are linked to the garment's physiology or to specific technical aspects. Moreover, in the last few years the concept of sustainable development challenged both the specialists and the fashion
Read moreRaw silk marama, between the art of dressing and pictural art
Raw silk marama is outlined through its continuous presence in the Romanian costume, as an element that gives continuity to the art of the Romanian traditional costume. In the paintings from the Romanian monasteries and, later on, in the easel paintings, the fragility of the marama’s texture has gained aesthetic expression through representation, thus adding intrinsic, physical and sensorial qualities to the painting’s value
Read moreFirst and second order magnetic and structural phase transitions in BaFe2(1-x)Co2xAs2
We present here high-resolution magnetization measurements on high-quality BaFe2(1−x)Co2xAs2, 0
Read moreTribological Behavior of Metalworking Fluids
In order to formulate new ecological metalworking fluids, the paper presents the tests made in first phase on universal tests machines as: ball-on-disk CSM micro-tribometer at different loads with 6 mm ball of 100Cr6 and the disks were made of carbon steel, in the presence of fluid samples with different complex esters and concentrations, in order to establish the proper composition. On Amsler A135 machine, was established the tribological behavior
Read moreHeat exchangers tube to tube sheet joints corrosion behavior
Paper presents the studies made by the authors above the tube to tube sheet fittings of heat exchanger with fixed covers from hydrofining oil reforming unit. Tube fittings are critical zones for heat exchangers failures. On a device made from material tube and tube sheet at real joints dimensions were establish axial compression force and traction force at which tube is extracted from expanded joint. Were used two shapes joints with two types of
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