Deformation measurement with object-induced dynamic phase shifting

A simple, yet powerful, means of computing the phase of fringe patterns depicting dynamic phenomena is presented. It is shown that the basic principle of the phase-shifting methods can be extended to the case of dynamic situations. The crux is to recognize that the phenomenon under examination can itself provide the necessary incremental phase shifts. This new method possesses a very wide range of applications in the field of deformation measurement.     

Black Phosphorus Nanoparticles Potentiate the Anticancer Effect of Oxaliplatin in Ovarian Cancer Cell Line

During the past few years, growing attention has been paid to black phosphorus (BP) and its unique optical, electrical, and catalytic properties. Furthermore, BP has proven to be biocompatible and biodegradable; qualities that present new opportunities for its utilization in the field of life sciences. However, despite all its suitable properties and applicability, its utilization in biomedicine is still in its infancy. This study reports on the synthesis of black phosphorus nanoparticles (BP NPs) and exploration of thier applicability in targeted drug delivery. BP NPs are loaded with platinum agents—cisplatin and oxaliplatin—and subjected to in vitro evaluation of targeted drug delivery. The BP NPs are not only able to load the investigated platinum derivatives on their surfaces, but also to transfer the therapeutic cargo to target specific tissue and to combine their effect with oxaliplatin, which leads to further potentiation of the anticancer effect.     

NMR of 89Y in T′-Phase La1.5 Y0.5CuO4

We report measurements of NMR spin-lattice (T ₁ ) and spin-spin (T ₂ ) relaxation times for ₈₉ Y in the parent structure of the electron–doped copper–oxide superconductors. T ₁ data exhibit non–exponential recovery with T ₁ 20 s. T ₂ decreases rapidly with temperature above the Néel temperature, but remains constant above 425 K. We discuss these behaviors by considering fluctuating antiferromagnetic spin clusters associated with oxygen defects.     

Masculinity causes speeding in young men

The goal of this study was to examine if masculinity is causally responsible for speeding in young men. Participants (83 males) were randomly assigned to a masculine, feminine, or neutral priming condition. Priming consisted in active listening to either masculine, feminine, or neutral words coming from the car radio while driving in a high-end driving simulator. Results showed that when the concept of masculinity was activated by priming, participants' driving speed increased significantly from the beginning to the end of the driving simulation as compared to the neutral and the feminine condition. Results are discussed with respect to real life health implications.     

WC-Co and Cr<Subscript>3</Subscript>C<Subscript>2</Subscript>-NiCr Coatings in Low- and High-Stress Abrasive Conditions

The article deals with the evaluation of abrasive wear resistance and adhesive strength of thermally sprayed coatings. The main attention was paid to differences between low- and high-stress abrasive conditions of the measuring. Conclusions include the evaluation of specific properties of the WC-Co and the Cr₃C₂-NiCr High Velocity Oxygen Fuel coatings and the evaluation of the changes in the behavior of the abrasive media. Mainly, the relationship between the low- and high-stress abrasion conditions and the wear mechanism in the tested materials was described. For the wear test, the abrasive media of Al₂O₃ and SiO₂ sands were chosen. During wear tests, the volume loss of the tested materials and the surface roughness of the wear tracks were measured. The wear tracks on the tested materials and abrasive sands’ morphologies were observed using Scanning Electron Microscopy. It was found that high-stress abrasive conditions change the coatings’ behavior very significantly, particularly that of the Cr₃C₂-NiCr coating. Adhesive-cohesive properties of the coatings and relationships among individual structure particles were evaluated using tensile testing. It was found that the weak bond strength among the individual splats, structure particles, and phases plays a role in the poor wear resistance of the coatings.     

The measurement method solving the problems of engine output characteristics caused by change in atmospheric conditions on the principle of the theory of optimal temperature range of exhaust system

All high-performance engines are sensitive to changes in external atmospheric conditions, which are immediately reflected in changes in the engine output characteristics. At best only they effect decreasing of the maximum engine power. However, in a more difficult situation, there is the possibility of excessive detonation combustion process during certain changes in atmospheric conditions. The exhaust system temperature significantly affects the maximum output power and the combustion engine characteristics. With increasing temperature of combustion products in the exhaust system there is an overall reduction in maximum power and its transfer to a higher engine speed because of the length of an exhaust manifold is theoretically shorten. Therefore, to achieve the maximum values of output parameters, it is necessary to ensure an optimal temperature value of the combustion products in the exhaust system. This article also provides optimal temperature range of working temperature as well as it presents a theoretical analysis of the impact for atmospheric conditions in this interval. Based on theoretical results there has been developed a measuring method, which allows to regulate the input amount of the fuel mixture supplied to a cylinder during change in atmospheric conditions and its functionality was experimentally verified.