A new improved version of the J1...J4 interferometric method for optical phase measurements, named J1...J3 method, is described, which is of easier implementation and is more stable to phase drift than the original one. This new spectrum technique is used to characterize a flextensional piezoelectric actuator by measuring its nanometric displacement amplitudes.

Chemical cell lysis is an interesting topic in the research to Lab-on-a-Disc (LOD) platforms on account of its perfect compatibility with the centrifugal spin column format. However, standard procedures followed in chemical cell lysis require sophisticated non-contact temperature control as well as the use of pressure resistant valves. These requirements pose a significant challenge thereby mak...

Two-dimensional finite-difference time-domain (FDTD) method has been performed to numerically investigate the transmission through a one-dimension cupped surface metallic grating structure. The concept of coupling of optical modes in the notches and main slits, introduced by Crouse and Keshavareddy [1], is examined further in our work. Unexpected phenomenon is shown that even horizontal surface...

A strengthening of the Amundsen Sea low from 1979 to 2013 has been shown to largely explain the observed increase inAntarctic sea ice concentration in the eastern Ross Sea and decrease in the Bellingshausen Sea. Here it is shown that while these changes are not generally seen in freely running coupled climate model simulations, they are reproduced in simulations of two independent coupled clima...

We report a low-voltage and fast-response polymer network liquid crystal (PNLC) infrared phase modulator. To optimize device performance, we propose a physical model to understand the curing temperature effect on average domain size. Good agreement between model and experiment is obtained. By optimizing the UV curing temperature and employing a large dielectric anisotropy LC host, we have lower...

The Longuet-Higgins phase change theorem is used to show that, in certain photochemical reactions, a single product is formed via a conical intersection. The cis-trans isomerization around the double bond in the formaldiminium cation and vinylamine are shown to be possible examples. This situation is expected to hold when the reactant can be converted to the product via two distinct elementary ...

Abstract--This work presents the effects of air infiltration on heat and mass transfer in a porous matrix. The vertical boundaries of the porous system are partially permeable in order to simulate the holes or the cracks in the porous insulation materials. An efficient numerical scheme accounting for phase change is employed to solve the appropriate governing equations along with the boundary c...

The cycle life and thermal safety of lithium-iron-phosphate (LiFePO4) batteries are important factors restricting the popularization new energy vehicles. study aims to prevent battery overheating, prolong power improve their by discussing heat production LiFePO4 solve problem temperature rise in natural-convection environment cut consumption liquid cooling system. A numerical simulation experim...

In many plant species, the degree of serration and complexity in successive leaves increases. A new study suggests that small-RNA-mediated licensing of competitive interactions between transcription factors links the developmental clock regulating vegetative phase change with leaf morphology.

Sb atoms in In3SbTe2 (IST) are partially substituted by 3.2-5.5 at.% of Bi atoms. As a result, the NaCl crystal structure of IST is slightly distorted. The distorted inter-planar angles observed with fast Fourier transformation of the lattice images are within the maximum range of interplanar angles calculated by density functional theory. When the Bi content is increased, the crystallization t...