A tecnologia tem um papel extremamente importante na nossa sociedade. Nesse sentido, as revoluções industriais, através da introdução de novas tecnologias, são extremamente impactantes para as economias. A Indústria 4.0, ou quarta revolução industrial promete inúmeros benefícios…
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У оквиру ове докторске дисертације формулисан је нови конститутивни модел бетона за локалну анализу, према неспрегнутој комбинацији теорије пластичности и механике оштећења. Одабрана функција течења у делу према теорији пластичности је јединствено адаптирана, са одвојеним промен…
Photovoltaics are at the forefront of new additions of renewable energy, driven by rapid integration of new technologies most significantly a transition from traditional Al-BSF to higher efficiency PERC silicon cells. As they are a more modern technology, PERC cells do not have …
Spark Plasma Sintering is one of the most effective tools in modern sintering history. Since the discovery of superconductivity in MgB 2 , there has been great interest in this atmospheric pressure-based material. In this paper, the effect of sintering temperature on superconduc…
One of the main challenges on the creation of glass pieces in casting, is to obtain a surface of the glass as clean as possible, without adhering residues, or devitrification. In glass Sculptures where the surface is not flat, the polishing process becomes very complicated, and …
Efficient and effective rehabilitation of existing roadways continues to be a top priority for local, state, and federal agencies to provide safe travel of people and goods. Asphalt concrete (AC) overlays on deteriorated Portland Cement Concrete (PCC) are a popular rehabilitatio…
The work presented here concerns the use of sapphire-based layered composites to increase the level of protection for eyewear applications. We analyze the dynamic behavior of sapphire and constitutive properties of polycarbonate, which are the materials involved in the composite…
Práce se zabývá rozsáhlou analýzou současného stavu poznání užití nanomateriálů v památkové péči při obnově, stabilizaci, konzervaci a restaurování historických materiálů, prezentuje dílčí experimentální výsledky (laboratorní a in-situ) použití vybraných nanosystémů aplikovaných…
The materials available to society define the substance of civilization. Continuous innovations in material science through history have enabled groundbreaking applications and technologies. The emergence of smart materials is revolutionizing the way we interact with everyday ob…
The inadequacy of contemporary Indigenous housing has been recognized worldwide from historical problems related to colonization, dispossession, and resettlement. Indigenous housing on reservations is often substandard which meets the minimum regulations for low-income housing, …
Stress Relief Cracking (SRC) in low alloy steels was the core focus for this work. Stress relief cracking is an ongoing concern for thick-walled creep resistant steel welds during PWHT when high restraint and high residual stresses are present after welding. While much is alread…
Sonochemical growth of zinc oxide (ZnO) nanowires and nanowalls is a relatively new synthetic technique that allows for room ambient growth and large scale production. This synthesis technique allows for services ranging from gas sensors and UV switches. In comparison to the wid…
Thermal energy storage is a major contributor to bridge the gap between energy demand (consumption) and energy production (supply) by concentrating solar power. The utilization of high latent heat storage capability of phase change materials is one of the keys to an efficient wa…
Advancement of porosities that happens in shear deformation of anisotropic materials is investigated by Dr. Kweon. As the hydrostatic stress in shear deformation is zero, in the solid mechanics' researches it is proved several times that porosity will not be expanded in shear de…
Electromagnetic shielding is becoming more and more important with the abundance of wireless devices. Therefore a need has arisen for more versatile, flexible and low-cost solutions for shielding. For these requirements, carbon microfiber material has been proposed for electroma…
We investigated the mechanical properties, such as fracture toughness (KIc), fracture energy (GIc), ultimate tensile strength (UTS), Young¡¦s modulus (E), and fatigue crack propagation rate (FCPR) of epoxy-matrix composites with different weight fractions of carbon-based fillers…
Silicon and graphite composite anode materials were prepared for a lithium ion half-cell with lithium metal as the reference electrode. All silicon/graphite composite anodes were prepared in the lab with mixing of slurry using ball milling technique. Battery grade copper foil wa…
This research contains two studies. First study investigated one of the factors that affect the performance of pads; the locations of pads relative to glass weave. Dage 4000plus bond tester was used in conducting a joint-level testing of pads on 370HR printed circuit board that …
The present research focused on the assessment of solder joint fatigue life in microelectronics assemblies. A general concern of any reliability engineer is whether accelerated tests are relevant to field conditions. The risk of this was minimized by developing an approach to re…