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New Research Results

Superconducting Tape 03/05/2018

World’s Highest Critical Current Density in Magnetic Field Realized by Low Cost High Temperature Superconducting Tape
– Promoting practical applications of high-temperature superconductivity –

AIST has developed yttrium-based oxide superconducting tapes that allow large critical current capacity in a strong magnetic field. AIST has improved the characteristics of the yttrium-based oxide superconducting tapes by fabricating ultra-fine artificial pinning centers (APCs) with uniform dispersion and high density using a chemical solution decomposition method which costs less than vapor phase methods. This has achieved a maximum critical current density of 4 mega-amperes that can flow while maintaining the superconducting state (at liquid nitrogen temperature, 65 K, per 1 cm2 in a magnetic field of 3T), and the critical current value exceeds 360 amperes.


RNA reference material 5/26/2017

Development of Artificial Nucleic Acid Reference Materials for Accuracy Control of Microbiome Analysis
– Contribution to highly reliable microbiota analysis by next-generation sequencing –

AIST has developed artificial nucleic acid reference materials as internal standards for accuracy control of analysis of microbiomes by next-generation sequencing. The 16S rRNA gene is widely used for the phylogenetic classification of microorganisms. AIST researchers designed artificial 16S rRNA reference materials to be amplified by PCR and to allow the amplified base sequences to be differentiated from natural genes during data analysis, and produced twelve types of the reference materials. When a mixture of the reference materials is used as an internal standard for microbiome analysis, the accuracy of the obtained base sequences can be evaluated and the performance of quantitative analysis can be controlled.

Figure of Developed artificial nucleic acid reference materials and a mixture of the reference materials

Infrastructure inspection 04/06/2018

Development of a Hammer Testing System Based on AI to Prevent Oversight in Inspections
– An anomaly map of infrastructure is automatically generated to improve the efficiency of inspections –

AIST has developed an AI system to learn, through machine learning, differences in the hammering echoes of infrastructure to detect anomalies automatically. Unusual sound analysis technology determines whether there is an anomaly. Upon detection, the anomaly is shown to the inspector in real time. An anomaly map is generated upon completion of the hammer test. Testing can be performed even if sufficient data are not available in advance.


Plating to CFRP 02/02/2018

Development of a Plating Technique with Excellent Adhesivity to Carbon Fiber Reinforced Plastic (CFRP)
– Prevents damage from lightning strikes with plating –

AIST has developed a technique to apply electroless plating directly to moldable intermediate materials used for manufacturing CFRP. It performed stabilizing treatment so as not to inactivate the plating solution on an intermediate material sheet that had been impregnated with a heat curing plastic, called “prepreg”. This treatment enabled immobilization of a palladium colloid catalyst and electroless copper plating on the prepreg. CFRP with a copper plating film on the surface can be prepared by laminating the prepreg that has a copper plating film with unprocessed prepregs. Lightning strike tests on the fabricated CFRP showed that lightning strike resistance was greatly improved.


Suspending microstructure 03/06/2018

Development of a Printing Technology for Forming a Suspending Microstructure
– Efficient production of a variety of sensors and acceleration of IoT development –

AIST has developed a printing technology named “Lift-On Offset Printing” that can fabricate a suspending microstructure, such as a cantilever and a bridge, within a short time frame and at low cost. First, a microstructure is built on a temporary substrate by using an offset printing process. It is then separated from the temporary substrate by reducing its adhesive power, and the microstructure is bonded to a new substrate. This process allows a microstructure to be fabricated at atmospheric pressure and reduces the fabrication time to one-fifth of that in a semiconductor manufacturing process. This technology will be transferred to private companies.


Geological hazard map 03/09/2017

Completion of the Eastern Asia Earthquake and Volcanic Hazards Information Map
- Information about past disasters displayed on a single geological map -

AIST has created the “Eastern Asia Earthquake and Volcanic Hazards Information Map”. The map summarizes past disaster information on large-scale earthquakes, volcanic eruptions and the tsunamis that they triggered. Displaying the disaster scale, and the number and causes of fatalities on the map in icons enable the viewers to have a good grasp of the hazard situation. The map is expected to raise risk management awareness in East Asia. It can be used as basic data for disaster mitigation planning and hazard map creation. The map in image format has been made public on the Geological Survey of Japan website.


Emission Mechanism 03/09/2018

Mystery of the Emission Mechanism of Materials for Next-Generation Organic Light-Emitting Diodes Unveiled!
–Towards low-cost organic light-emitting diodes –

AIST has elucidated the emission mechanism of the materials for next-generation organic light-emitting diodes, namely thermally activated delayed fluorescent materials, using an advanced spectroscopic technique developed by AIST. The materials were designed and developed by Kyushu University. A group of molecules with high emission efficiency has a characteristic molecular structure. The spectroscopic technique used will be sophisticated further to observe the emission process in detail.


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