A new species of Fabricius (Lepidoptera, Pyralidae) from Korea based on molecular and morphological characters.

The greater wax moth, Linnaeus, is well known as a pest of honey bees and for the biodegradation of wax and polyethylene by their larvae. The genus has long been considered monotypic and found worldwide. A taxonomic study of the genus is presented based on morphological and molecular characters (, , ).

Pilot-scale investigation of sludge reduction in aerobic digestion system with endospore-forming bacteria.

A pilot-scale investigation of membrane-based aerobic digestion system dominated by endospore-forming bacteria was evaluated as one of the potential sludge treatment processes (STP). Most of the organic matter in the sludge was removed (90.1%) by the particular bacteria in the STP, which consisted of mixed liquor suspended solid (MLSS) contact reactor (MCR), MLSS oxidation reactor (MOR), and membrane bioreactor (MBR).

Production of algal biomass (Chlorella vulgaris) using sediment microbial fuel cells.

In this study, a novel algal biomass production method using a sediment microbial fuel cell (SMFC) system was assessed. Under the experimental conditions, CO(2) generation from the SMFC and its rate of increase were found to be dependent on the current generated from the SMFC. However, the CH(4) production rate from the SMFC was inhibited by the generation of current.

Recanalization of completely thrombosed non-giant saccular aneurysm mimicking as de novo aneurysm.

Partial thrombosis of giant aneurysms is not uncommon however, complete angiographic occlusion occurs less frequently. In the case of non-giant aneurysms, complete thrombosis and recanalization has been rarely reported. A 31-year-old man presented to the emergency department with sudden bursting headache.

Experimental evaluation of influential factors for electricity harvesting from sediment using microbial fuel cell.

The aim of this study was to evaluate limiting factors affecting electricity output from sediment microbial fuel cells (sediment MFCs). In laboratory tests, various factors likely to be encountered in field application were divided into controllable and uncontrollable ones. Based on the findings, it could be suggested that the sediment MFCs can be operated with an anode to cathode area ratio of at least 5:1 and at high external loads (1000 ohms) when the cathode is closely placed to the anode, though DO concentration at the cathode must be kept above 3 mg/l.

Responses from freshwater sediment during electricity generation using microbial fuel cells.

In a two-electrode system, freshwater sediment was used as a fuel to examine the relationship between current generation and organic matter consumption with different types of electrode. Sediment microbial fuel cells using porous electrodes showed a superior performance in terms of generating current when compared with the use of non-porous electrodes. The maximum current densities with thicker and thin porous electrodes were 45.

Stable and continuous long-term enzymatic reaction using an enzyme-nanofiber composite.

This study shows the preparation and application of enzyme-nanofiber composites for long-term stable operation. The enzyme-nanofiber composite was prepared by coating an enzyme aggregate, the esterase from Rhizopus oryzae, on the surface of the nanofibers. After immobilization on the nanofiber, the apparent K ( m ) for the immobilized esterase was 1.