A high-uniformity, high-purity copper pillar ECP process with limited acid concentration

Genetically engineered wine yeast produces a high concentration of L-lactic acid of extremely high optical purity.

For mass production of lactic acid, we newly constructed a transgenic wine yeast strain that included six copies of the bovine L-lactate dehydrogenase gene on the genome. On fermentation in inexpensive cane juice-based medium, L-lactate production of this recombinant reached 122 g/liter and the optical purity was 99.9% or higher.

robust control of a high-purity disttilation column using synthesis

Electrochemistry of high concentration copper chloride complexes.

High concentrations of copper chloride solutions (in the molar range) are used in several industrial applications. In this work, we investigated the species distribution of copper chloride complexes and how to measure the copper concentration precisely at high concentrations using electrochemical methods, by including migrational effects. The latter, in fact, can be useful in determining the na...

A process for high yield and scaleable recovery of high purity eicosapentaenoic acid esters from microalgae and fish oil.

A low expense process is developed for recovering esterified eicosapentaenoic acid (EPA) from microalgae and fish oil. Over 70% of the EPA content in the esterified crude extract of microalgae were recovered at purities exceeding 90%. The recovery scheme utilizes either wet or freeze-dried algal biomass. The process consists of only three main steps: 1) simultaneous extraction and transesterifi...

High Speed 0.18μm Ion-implanted GaAs MESFET Process with High Uniformity & Excellent Reproducibility

We successfully obtained an 0.18μm gate MESFET with a high breakdown voltage (Vbd) of 7V, high current gain cut off frequency (fT) of 100 GHz, and sufficient transconductance (Gm) larger than 500mS/mm for high-speed front end ICs of optical communications. In addition, excellent uniformity and reproducibility of device characteristics, such as the standard deviation (std.) of threshold Voltage ...