Soft modes are intimately linked to structural instabilities and key for the understanding of phase transitions. The soft in ferroelectrics, example, map directly polar order parameter a crystal lattice. Driving these into nonlinear, frequency-changing regime with intense terahertz (THz) light fields is an efficient way alter lattice and, it, physical properties. However, recent studies show th...

Previously we have reported the possibility of observing the fundamental antisymmetric (A0) Lamb wave propagating in the human tibia and radius. However, A0 velocity (1300-2000 m/s) overlaps that of soft tissue (1500 m/s), and it is therefore possible that signals propagating through soft tissue may be mistaken for an A0 wave in bone. In order to clarify this issue, measurements were performed ...

PURPOSE The purpose of this article is to evaluate patients' visual acuity, symptoms, and perceptions of vision-related quality of life in a randomized crossover clinical trial of overnight corneal reshaping (OCR) and daily wear soft lenses (SCL). METHODS Qualified subjects were randomly assigned to wear one mode of contact lens for 8 weeks and then, after a washout period, they wore the alte...

With its unique structure, the Akiyama probe is a type of tuning fork atomic force microscope probe. The long, soft cantilever makes it possible to measure soft samples in tapping mode. In this article, some characteristics of the probe at its second eigenmode are revealed by use of finite element analysis (FEA) and experiments in a standard atmosphere. Although the signal-to-noise ratio in thi...

in this work, we define a fuzzy soft set theory and its related properties. we then define fuzzy soft aggregation operator that allows constructing more efficient decision making method. finally, we give an example which shows that the method can be successfully applied to many problems that contain uncertainties.