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The approximate prediction of lateral performance of buildings without any analytical study requires quite a lot of knowledge and experience in the field for an engineer and an architect as well. An algorithm is required to enhance the mentioned predictions that mostly rely on the knowledge and experience. In this context, in order to quantify the degree of irregularity in framing of the structure in plan column density maps are developed, and thanking to the developed quantification method, the derivation of the relationship between the degree of irregularity and the maximum global roof drift of the structure is aimed. Knowing that the degree of irregularity has a negative impact on the lateral performance, in order to derive the relationship between the two, a regular structure is designed and 16 irregular models based on the regular model are developed. Linear response spectrum analysis and non-linear pushover analysis are conducted to obtain the global drifts and based shears. For linear analysis, the fundamental periods of vibration, mass participation ratio and eccentricity are monitored, while in non-linear analysis the global drifts are monitored. Shortly, the quantification of the irregularity in plan, is a novel approach which a potential to strengthen the hands of the designers, engineers and architects, also could be treated an evaluation tool as an improved global drift and lateral performance prediction method. [ABSTRACT FROM AUTHOR]

The main shaping methods using in ceramic art are hand shaping, wheel throwing and casting. The method of forming with 3D printers, which emerged depending on the development of CAD / CAM technologies, has also been integrated into art practice in recent years. In addition to all these shaping methods, today artists try to see beyond the forming limitations of the material and develop their own personal methods. In this direction, artists sometimes develop additional methods to the shaping methods of the material by using various additives, sometimes they create a machine-made art practice by creating their own devices. The sole focus of all these application options is undoubtedly the artist's desire to recreate. Today, the boundaries between the concepts of artist, inventor, engineer and designer have become almost visible. As a result of this, an art practice that determines its own production process and method has emerged. In the research, technical and formal evaluations of these methods, which are not yet accepted as a shaping classification in the literature, but developed specifically for artists, were made. In addition, the potential and sustainability of these new forms of use are discussed. Accordingly, it has been concluded that alternative shaping methods used in ceramic art can be classified as: shaping methods that occur with additives added to clay, shaping of preformed organic materials by spinning, pouring or dipping, shaping with low technology devices and shaping by deformation. [ABSTRACT FROM AUTHOR]

Lead telluride (PbTe) quantum dots, despite being considered as one of the most promising candidates for future photovoltaics owing to their higher multiple exciton generation yields, have received limited attention in solar cell designs due their less explored surface chemistry and high air sensitivity. This study demonstrates the synthesis and characterization of highly crystalline PbTe QDs and their utilization in solution processed solar cells through band alignment engineering. Ultraviolet photoelectron spectroscopy studies showed that the conduction and valence band levels depend strongly on the type of surface ligand utilized for the ligand exchange process. Conduction and valence band levels of tetrabutylammonium iodide (TBAI) and 1,2-ethanedithiol (EDT) treated PbTe QDs with respect to vacuum were measured as -3.73 eV/-4.83 eV and -3.48 eV/-4.45 eV, respectively. The presence of a band offset between the conduction and valence band levels of TBAI and EDT treated layers allowed us to engineer the band alignment in the light absorbing layer. As a result, solar cells where TBAI and EDT ligand treated QDs were utilized in a bilayer cell architecture reached a photo conversion efficiency of 0.65%. [ABSTRACT FROM AUTHOR]

It is known that three-dimensional (3D) printing technology which enables to transform an imagination into 3D real product, has started to take place in many different areas from the space-aviation sector to the health sector and its usage is gradually increasing. With the unstoppable development of technology, the emergence of new materials and manufacturing methods or the necessity of developing existing ones has become an inevitable fact. Four-dimensional (4D) printing technology which also includes 3D printing technology as one of the steps of 4D printing and this 4D printing technology allows the 3D printed products from smart materials to change their shape over time when these 3D printed products are stimulated by external stimulus such as heat, water, light or etc. In this study, 4D printing technology and components have been examined and some useful information has been tried to be presented to our country's researchers and engineers about the development process and potential application areas of this technology. [ABSTRACT FROM AUTHOR]

Today, the manufacture of engine and fuselage parts of flying platforms such as helicopters and aircraft is largely based on solvable and indecipherable joining techniques. Especially in parts where unsolvable joining techniques are used, adhesive is used in limited places, but to a large extent Rivet, welding and solder connections are used and work is being done on new, lighter and more durable joining processes with higher connection efficiency. Especially in these days when the construction of domestic and national aircraft and helicopters is being accelerated, the understanding of these joining techniques and joining philosophy on behalf of our country is of greater importance for our country’s engineers. In this study, information is given about joining technologies, materials and joining concept used extensively in the manufacture of aircraft and current technologies are explained. [ABSTRACT FROM AUTHOR]