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New Research Results

Wastewater treatment 02/05/2020

Small Minority Microbes in Activated Sludge Influence the Overall Wastewater Treatment Performance
– New analysis approach for understanding reaction mechanisms in the environment based on the microbial genetic diversity –

AIST combined a new analytical approach to evaluate genetic diversity with metatranscriptome analysis, and discovered that when degrading heavy oil in wastewater, nitrifying bacteria that are small minority microbes in activated sludge influence the heavy oil degradation performance of the overall activated sludge.

Figure of new research results from Energy and Environment

Ant neuropeptide 02/14/2020

Elucidation of the Mechanism of Dry Environment Resistance via Ant Neuropeptide
– Neuropeptide controls synthesis of hydrocarbons on the body surface –

AIST examined the expression levels of inotocin, an ant neuropeptide, between young worker ants staying the nest and old worker ants active outside. It was clarified that inotocin controls the synthesis of hydrocarbons that prevent the water loss from the body surface.

Figure

Neural pathway 07/17/2020

Discovery of Newly Formed Neural Pathway after Brain Injury
– Possibilities for motor function recovery by appropriate facilitation of brain changes –

AIST has investigated changes in the neural pathways of the brain during the process of motor function recovery using model animals with permanent lesion in the brain. As a result, it was discovered that a new neural pathway was formed.

Figure of new research results Materials and Chemistry

Heat-resistant magnet 08/04/2020

Development of Synthesis Method for Highly Heat-Resistant Rare Earth Magnet Powder without Heavy Rare Earths
– Promoting the development of magnets for automobile driving motors –

By developing rotary heat treatment technology specialized for a reduction-diffusion reaction, AIST developed technology for fabricating samarium-iron-nitrogen (Sm2Fe17N3) magnet powder with high coercivity of 30 kOe or more at room temperature and approximately 11 kOe at 200 ºC, without the use of heavy rare earth elements.

Figure of new research results Materials and Chemistry

Frozen semen 07/21/2020

Mass Production of Frozen Semen for Improvement of Bovine Fertility
– Strategy to improve the fertility of frozen bovine semen by a facile technology that enables mass production of frozen straws containing selected healthy sperm and validation by artificial insemination showing high fertility results –

AIST developed semen pretreatment technology for improving the conception rate by artificial insemination for cattle breeding. In addition, semen was mass produced and cryopreserved in a sealed state inside a straw packaging, and a high conception rate was confirmed by field validation testing.

Figure of new research results Electronics and Manufacturing

Neonicotinoid insecticides 08/05/2020

Insecticides Emerge as a Contributing Factor to the Decrease in Eels and Smelt
– Eel fisheries yield in Lake Shinji in Shimane Prefecture drop sharply coincidental with the start of neonicotinoid usage –

AIST conducted a survey of Lake Shinji in Shimane Prefecture. The results indicated the possibility that neonicotinoid insecticides used in rice paddies kill or otherwise harm the creatures on which eels and smelt feed, and thus indirectly caused the rapid decline in eels and smelt.

Figure of new research results Geological Survey of Japan

X-ray imaging 03/19/2020

Development of High-Sensitive Digital X-ray Imaging Device with Large Field of View for Infrastructure Inspection
– Drastically increase the efficiency of non-destructive inspection of industrial infrastructures –

AIST has developed a new digital X-ray imaging device that enables digital inspection of infrastructures. The developed device can be driven with batteries. Combination with a battery-powered X-ray source enables X-ray inspection up to 10 cm thick iron objects.

Figure of new research results National Metrology Institute of Japan

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