In this paper, recent progress made in the development of quartz and KDP crystal based acousto-optic tunable filters (AOTF) are presented. These AOTFs are developed for operation over deep-UV to near-UV wavelengths of 190 nm to 400 nm. Preliminary output performance measurements of quartz AOTF and design specifications of KDP AOTF are presented. At 355 nm, the quartz AOTF device offered ~15% di...

KdpD and KdpE form a histidine kinase/response regulator system that senses K(+) limitation and induces the kdpFABC operon, which encodes a high-affinity K(+) uptake complex. To define the primary stimulus perceived by KdpD we focused in this study on the dynamics of the Kdp response. Escherichia coli cells were subjected to severe K(+) limitation, and all relevant parameters of the Kdp respons...

The Kdp system is widely distributed among bacteria. In Escherichia coli, the Kdp-ATPase is a high-affinity K+ uptake system and its expression is activated by the KdpDE two-component system in response to K+ limitation or salt stress. However, information about the role of this system in many bacteria still remains obscure. Here we demonstrate that KdpFABC in Staphylococcus aureus is not a maj...

The key factors, namely, the radar data quality, raindrop size distribution (RSD) variability, and integration method, which significantly affect radar-based quantitative precipitation estimation (QPE) are investigated using RCWF (S-band) NCU C-POL (C-band) dual-polarization radars in northern Taiwan. quality control (QC) procedures, including corrections of attenuation, systematic bias, wet-ra...

Micromachining repair of surface defects on KH2PO4 (KDP) optics is an emerging technique in the construction Inertial Confinement Fusion facilities for obtaining clean nuclear fusion energy. However, this method yet facing considerable challenges owing to soft-brittle nature single-crystal KDP, hence it necessary understand its ductile-regime cutting mechanism generate crack-free surfaces. This...

The first eight-coordinated trivalent lanthanide complexes with an achiral ligand 6,7-dicyanodipyridoquinoxaline (dicnq), [DyCl(3)(dicnq)(2)](n) (1 and 1') were found to exhibit spontaneous chiral resolution, SHG active (two times that of KDP) and blue luminescence.

The precipitation systems that pass over mountains develop rapidly due to the forcible ascent caused by topography, and spatial rainfall distribution differences occur local development of system because topography. In order reduce damage orographic rainfall, it is essential provide field data with high accuracy. this study, estimation relationship was calculated using drop size obtained from 1...

The main aim of this research is to obtain high purity potassium dihydrogen phosphate solution with Al, Cr, Fe and Ti impurity content < 0.05 ppmw (5⋅10-6 wt.%) by the simple and effective process of impurities coprecipitation with insoluble precipitants. The completeness of the coprecipitation with different coprecipitants of the above-mentioned impurities in saturated potassium dihydrogen pho...