Solvothermal Sulfide Solid Electrolyte Technology

This technology relates to a method for producing a sulfide-based solid electrolyte in a short time and with low energy consumption by using a solvothermal synthesis process.

Conventional production of sulfide-based solid electrolytes has suffered from long reaction times and high energy consumption, resulting in low productivity. This technology introduces a solvothermal reaction-based synthesis process to manufacture a high-purity electrolyte more efficiently.

As a result, it can reduce manufacturing time and energy usage while improving productivity, making it advantageous for the mass production of materials for all-solid-state batteries.

Key Features:

• It manufactures a sulfide-based solid electrolyte using a solvothermal synthesis method.
• It simultaneously achieves high-purity electrolyte production and shorter process time.
• It is beneficial for improving the productivity of electrode and electrolyte materials for all-solid-state batteries.

Pneumatically Assisted Multi-Legged Walking Robot Technology

This technology relates to a multi-legged walking robot that improves travel efficiency and support stability by combining multiple leg units with a pneumatic assistance structure.

Conventional multi-legged robots have struggled to achieve fast locomotion and stable support because of high torque loads and physical resistance during the stance phase. This technology addresses that issue by linking a main body, leg-joint structure, surface support means, and pneumatic device to assist drive operation during the stance phase.

As a result, it can improve travel efficiency and support stability and can be used in industrial mobile robots, exploration robots, and walking assistance devices.

Key Features:

• It includes an articulated structure connecting the main body and multiple leg units.
• It applies a pneumatic device that assists surface support force during the stance phase.
• It improves travel efficiency and stability by reducing the torque burden on the drive unit.

Walking assistance robot combining wheelchair and exoskeleton to increase mobility

This technology relates to a wheelchair-type walking assistance robot that combines an exoskeleton worn on the user's lower body with a wheelchair-type lift for the purpose of strengthening the muscle strength of the general public, walking rehabilitation of patients, or assisting the mobility of the elderly.

It is a wheelchair-type walking assistance robot with greatly enhanced convenience.

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Key Features:

• A wheelchair-type walking assistance robot that can assist the user with 100% of the force required for sitting or standing.
• Running part: Responsible for an independent driving function like a wheelchair through the driving motor and wheels installed on the main frame
• Lift: Moves the chair up and down using linear guides and actuators, stably assisting the user in sitting or standing.
• Exoskeleton: Worn directly on the user's lower body to support the hip joint and Induces and supports movement of the knee joint and assists in gait rehabilitation

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Walking assistance robot combining wheelchair and exoskeleton to increase mobility

This technology relates to a wheelchair-type walking assistance robot that combines an exoskeleton worn on the user's lower body with a wheelchair-type lift for the purpose of strengthening the muscle strength of the general public, walking rehabilitation of patients, or assisting the mobility of the elderly.

It is a wheelchair-type walking assistance robot with greatly enhanced convenience.

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Key Features:

• A wheelchair-type walking assistance robot that can assist the user with 100% of the force required for sitting or standing.
• Running part: Responsible for an independent driving function like a wheelchair through the driving motor and wheels installed on the main frame
• Lift: Moves the chair up and down using linear guides and actuators, stably assisting the user in sitting or standing.
• Exoskeleton: Worn directly on the user's lower body to support the hip joint and Induces and supports movement of the knee joint and assists in gait rehabilitation

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Walking assistance robot combining wheelchair and exoskeleton to increase mobility

This technology relates to a wheelchair-type walking assistance robot that combines an exoskeleton worn on the user's lower body with a wheelchair-type lift for the purpose of strengthening the muscle strength of the general public, walking rehabilitation of patients, or assisting the mobility of the elderly.

It is a wheelchair-type walking assistance robot with greatly enhanced convenience.

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Key Features:

• A wheelchair-type walking assistance robot that can assist the user with 100% of the force required for sitting or standing.
• Running part: Responsible for an independent driving function like a wheelchair through the driving motor and wheels installed on the main frame
• Lift: Moves the chair up and down using linear guides and actuators, stably assisting the user in sitting or standing.
• Exoskeleton: Worn directly on the user's lower body to support the hip joint and Induces and supports movement of the knee joint and assists in gait rehabilitation

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Zeolites with different crystal structures

This technology relates to a method of manufacturing aluminosilicate zeolite with a UFI structure.

Since zeolites can have different properties depending on their framework composition and crystal structure, the development of UZM-5 zeolite with various framework compositions and different crystal structures is required, and this technology proposes an aluminosilicate zeolite with a new composition having a UFI structure.

This technology By using 1-Benzyl-2,3-dimethylimidazolium cation as an organic structure-inducing molecule, PST-7 zeolite with UFI structure with new framework composition, crystal shape and size can be created, and it becomes a new zeolite with different physicochemical and catalytic properties.

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Key Features:

• The Si/Al ratio is in the range of 7.5 to 50, preferably in the range of 10 to 25.
• UFI-structured aluminosilicate zeolites form rectangular crystal structures with a thickness of 0.3 μm or more.
• 1,2-Dimethyl-3-(2-fluorobenzyl)imidazolium cations are used as organic structure-directing molecules.
• Synthesized by converting to a hydroxide form using synthetic resins.

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This technology was developed through support from the National Research Foundation of Korea's Nanoporous Materials Synthesis Research Center.

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준Composition that induces the formation of metastable calcium carbonate crystals

This technology relates to the recombinant pearl shell Pif97 protein and the composition for forming metastable calcium carbonate crystals.

Pearls are not only valuable as jewelry, but the fracture resistance of nacre aragonite has a mechanical strength 3,000 times higher than that of pure aragonite, but there is a problem in that it is difficult to synthesize metastable calcium carbonate crystals to make artificially. In order to solve this problem, this technology proposes a method in which the recombinant pearl shell Pif97 protein, represented by SEQ ID NO: 1, produced by recombinant pearl shell Pif97 protein in prokaryotic cells, has the ability to bind calcium, aragonite, and chitin and induces the formation of metastable calcium carbonate crystals.  

The recombinant pearl shell Pif97 protein according to the present technology has the ability to bind calcium, aragonite, and chitin, and is excellent in inducing the formation of metastable calcium carbonate crystals by stabilizing amorphous calcium carbonate in an unstable state and inhibiting the formation of stable calcite.

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Key Features:

• * Providing isolated recombinant pearl shell Pif97 protein, synthesized by the nucleotide sequence encoding the amino acid sequence shown in SEQ ID NO: 1
• * Produce and purify the recombinant protein rPif97 from the prepared vector, and then transform E. coli BL21 (DE3) (Novagen) with the recombinant plasmid pET23-rPif97
• * 1mM Induction of recombinant protein rPif97 expression using IPTG (isopropyl-β-D-thiogalactopyranoside; Sigma Aldrich)
• * The eluate was desalted using a PD-10 column using 10mM Tris buffer (pH8)}
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This technology was developed through support from the Korea Institute for Ocean Science and Technology Promotion's research projects on marine fiber composite materials and bioplastic materials.

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Beam steering precision enhanced loudspeaker

This technology concerns a piezoelectric MEMS-based superdirectional loudspeaker and beam steering method.

In the case of audible sound, the frequency is low, so the sound is transmitted in all directions unless the transducer is very large, so this technology proposes a piezoelectric MEMS-based super-directional loudspeaker capable of precise steering of the sound wave beam using a parametric array in the air.

This technology enables independent driving of the transducer by implementing the transducer in a three-dimensional connection structure, improving beam steering precision by precisely controlling the phase and amplification gain of the driving signal. In addition, the performance of the loudspeaker can be improved by minimizing wiring length deviation and ensuring the precision of the driving signal.

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Key Features:

• The core principle of piezoelectric MEMS using a parametric array including multiple transducers that generate ultrasonic waves
• Obtained by measuring the output of each transducer while applying the same reference voltage to multiple transducers
• Modulating the input signal into a driving signal corresponding to each transducer using a carrier wave signal
• The driving signal applied to each transducer using a plurality of power amplifiers connected one-to-one amplification

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High CO2 hydration activity carbonic anhydrase'

This technology is about chimeric carbonic anhydrase derived from Dunaliella salina.

When trying to apply protein as a biocatalyst for removal and conversion of existing carbon dioxide, the low yield of Dsp-CA-c became a problem. To solve this problem, we propose carbonic anhydrase [Dsp-nCA-c] containing the amino acid sequence shown in SEQ ID NO: 4. The chimeric proteins Dsp-nCA-c and Dsp-nCA-c (G263S) of the invention show higher water-soluble expression and CO2 hydration activity than the existing Dsp-CA-c. The two proteins of this technology show increased soluble expression and CO2 hydration activity in Dsp-CA and CO2 mineralization, so they can be used in the CO2 removal process using CA catalysts and the production of various industrial raw materials using CO2 mineralization. They can also be used as catalysts in the synthesis of useful metabolites to increase synthesis yield.

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Key Features:

• Carbonic anhydrase containing the amino acid sequence shown in SEQ ID NO: 4 [Dsp-nCA-c]
• Carbonic anhydrase containing the amino acid sequence shown in SEQ ID NO: 5 [Dsp-nCA-c(G263S)]
• Capture of carbon dioxide containing carbonic anhydrase or Fixation
• Increase the amount of soluble expression by fusing part of the amino terminus to a protein with low soluble expression, such as Dsp-CA-c.

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This technology was developed through research support from the Korea Institute for Ocean Science and Technology Promotion for the development of marine silica biomineral-based synthetic bone graft materials.

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High-accuracy biosignal wearable device

This technology relates to a system and method for detecting user abnormalities based on biometric signals and wearable devices, which can prevent accidents in advance by classifying and detecting abnormal conditions of the driver in advance based on biological signals measured using the device and notifying them to the driver and passengers.

The biosignal-based method has the inconvenience of having to attach a measuring device to the driver's body to collect biosignals, so a wearable device was designed, but the existing method is based on the measurement device. Because it is very sensitive to movement and contains a lot of noise, there is a high possibility of incorrect status judgment when used for status determination due to the inaccuracy of the acquired signal. To solve this problem, this technology proposes a method of using Adaboost, one of the ensemble learning techniques that produces the final result.

This technology is capable of detecting abnormal conditions of the driver in advance and notifying them to the driver and passengers. In addition to preventing traffic accidents, the condition detection algorithm can be applied to various products such as various healthcare products or systems that monitor the condition of workers in other industrial sites.

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Key Features:

• After measuring several signals from the driver, inspecting the measured signals and performing a pre-processing process to check whether the signals can be used to detect abnormal conditions
• In order to have high-accuracy detection performance, use Adaboost, an ensemble learning technique that combines the results of multiple classifiers to produce the final result
• The driver's biological signals such as PPG signals, temperature, and GSR signals, and acceleration and gyro signals Measuring signals related to movement
• Designing a neural network-based classifier and combining the results of several trained classifiers to perform final state classification and detection

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This technology was developed through support from the National IT Industry Promotion Agency's bio-signal-based driver abnormality detection and notification system research project.

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