Gap-free rotating insect-proof window system

This technology is about a revolving window and is about a window that can add an insect-proof function without any play during the opening and closing process of the window.

Existing revolving windows had difficulty integrating insect screens and were inconvenient in cleaning the outside. This technology proposes a ‘rotating insect-proof window system’ that solves these problems.

This system is designed so that the insect screen operates without play when opening or closing the window through the organic interconnection of the external frame, internal frame, slideable insect prevention roll, and moving guide. It is attractive in appearance, takes up minimal space, and makes outdoor window cleaning safe and convenient.

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Key Features:

• Internal frame: Rotates around the axis of rotation, forming 'circulating rails' at the top and bottom
• Insect prevention roll: One end is fixed to the external frame, the other end slides according to the movement of the internal frame
• Movement guide: Connects the end of the insect prevention roll to the circular rail of the internal frame, guiding the insect screen to move together along the rail when the internal frame rotates
• When the window is closed, the insect screen returns to the roll housing in the reverse order. Automatically wound inside

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Real-time restoration of high-quality 3D ultrasound images without blurring

This technology relates to a 3D ultrasound image restoration method and its ultrasound imaging device. It concerns a method of restoring high-definition ultrasound images based on 3D ultrasound echo signals focused for each pixel based on the resolution of the target cross-section.

Blurring artifacts and excessive computation that occurred during existing 3D ultrasound image restoration were problems that hindered the accuracy of diagnosis. This technology presents a new 3D ultrasound image restoration method and device to solve these problems.

Based on the 3D ultrasound echo signal obtained from the object, the transmission and reception delay time and phase value are calculated using the physical location information of the target cross section, and through this, the echo signal is phase rotated to obtain a high quality signal value. This technology effectively eliminates image distortion and blurring artifacts by omitting the digital scan conversion process, and minimizes the amount of calculation to create clear, high-contrast, high-definition 3D ultrasound images.

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Key Features:

• Omit the digital scan conversion process, which is the main cause of blurring artifacts
• Directly calculate and restore the signal value corresponding to each pixel (second coordinate system) of the final image from the ultrasonic echo signal (first coordinate system)
• Calculate the precise transmission/reception delay time for each pixel, and convert this to a phase value to phase rotate the signal
• Restore the high-definition ultrasound image of the target cross-section based on the finally obtained signal values

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This technology was developed through the National Research Foundation of Korea's ultrasound-based patch-type bladder monitoring healthcare system research project.

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Korean power rate optimization ESS peak reduction system

This technology relates to an energy storage device operation method and system based on the Korean power rate system. It relates to an energy storage device operation method and system based on the Korean power rate system that can reduce the peak value of the actual power load pattern and the total power bill by controlling the charge and discharge operation of the energy storage device by calculating the optimized charge/discharge ratio of the energy storage device according to the results of comparative analysis of the peak value for predicted demand power and the actual accumulated peak value.

Korea's existing unique power rate system determines the base rate based on the maximum peak load over the past 12 months, making it difficult to substantially reduce electricity costs using energy storage systems (ESS) alone.

To solve these problems, this technology predicts the peak value of power demand for the current month based on past power usage data and compares it with the cumulative peak value of the past few months to calculate the optimal charging/discharging ratio of the ESS. It helps reduce overall electricity costs by simultaneously achieving peak load management and time-based rate reduction.

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Key Features:

• Predict the demand power peak value for the current month based on past power usage data
• Compare and analyze the predicted peak value and the actual cumulative peak value of the past few months
• Calculate the optimal charge/discharge ratio of the energy storage device according to the comparative analysis results, and control the system to reduce the next day's peak load through this
• Apply the Robust Optimization technique that takes into account the error in the predicted load, effectively dealing with the uncertainty of the actual power usage environment response

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This technology was developed through support from the Korea Institute of Energy Technology Evaluation and Planning's smart grid core technology development research project.

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Blockchain-based smart contract to reduce traffic

This technology is about a distributed consensus system and method for the external interface in a blockchain-based smart contract. It is about an external device call interface that enables external device calls and a blockchain-based external service support system using public key verification.

The reason external device calls cannot be made in existing blockchain-based smart contracts is because smart contracts are executed on all nodes.

This technology uses transaction application methods of block generation nodes and block verification nodes to solve the problem of not being able to call external devices. By separating, traffic generated from external devices can be reduced.

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Key Features:

• When creating a block, if there is a request to call an external device, the block generation node directly calls it and stores the response in the block
• The external device signs and sends its response with a public key-based structure
• The block verification node verifies the transaction by checking whether the response stored in the block is correctly configured through public key verification
• All networks agree on the response content

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Automatic separation blister packing device without damaging tablets

This technology is about a device for dispersing blister packing tablets without damaging the tablets when supplying tablets.

Existing manual blister tablet extraction consumes a lot of time and manpower, and there is a risk of tablet damage and contamination. To solve this problem, this technology provides a packaging device that automatically separates and extracts blister-packed tablets without damaging the tablets.

This device precisely forms a sheath at the bottom of the blister package and safely extracts the tablets through pressurization, ensuring efficiency and hygiene at the same time. It is an optimized solution for environments that require separation of large quantities of tablets, such as pharmacies and hospitals.

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Key Features:

• Guide part: Guides blister-packed tablets of various sizes to be placed in the correct position
• Cutting roller part: Precisely forms a sheath along the line where the tablet is located on the lower part of the inserted packaging material (aluminum foil)
• Pressure roller part: Gently presses the notched packaging material from above, allowing the tablet to come out of the pocket with minimal pressure.
• The path along which the packaging material moves is slanted downward, Designed so that the extracted tablets fall safely forward without hitting the roller shaft and are collected in a designated collection box

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Xylene yield enhancing hierarchical MFI zeolite

This technology simultaneously uses a non-benzene-based first structure directing agent that provides the skeletal structure of MFI zeolite seed crystals with regular microporous pore sizes, and a second structure directing agent containing one benzene ring and ammonium ion that acts as a mesopore-directing agent without interfering with the role of the first structure directing agent. This is about the manufacturing method of hierarchically structured MFI zeolite.

We overcome the mass transfer limitations of existing MFI zeolites and present a solution for the production of acetylene-based sustainable aromatics.

The catalyst using this technology maintains the excellent properties of existing zeolites while maximizing mass transfer efficiency, showing excellent catalytic activity in the conversion reaction from acetylene to high value-added aromatic compounds such as benzene, toluene, and xylene. In particular, it can contribute to the development of a sustainable chemical industry by improving xylene production yield by up to 7 times

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Key Features:

• Using two types of structure-directing agents (SDA) simultaneously to manufacture MFI zeolite with a hierarchical structure in which micropores and mesopores coexist
• First structure-directing agent: A non-benzene-based directing agent (e.g. tetrapropylammonium hydroxide) forms a regular microporous structure that becomes the skeleton of MFI zeolite
• Second structure-directing agent: Containing a benzene ring Cationic surfactant (e.g., benzyltrimethylammonium bromide) additionally forms mesopores without interfering with the formation of microstructure
• Excellent performance in the conversion reaction from acetylene to aromatic compounds, significantly increasing aromatic compound yield by about 2 times compared to existing catalysts, and especially xylene yield by about 7 times

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This technology was developed through the National Research Foundation of Korea's research project on catalyst technology for producing BTX from methane via acetylene.

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Xylene yield enhancing hierarchical MFI zeolite

This technology simultaneously uses a non-benzene-based first structure directing agent that provides the skeletal structure of MFI zeolite seed crystals with regular microporous pore sizes, and a second structure directing agent containing one benzene ring and ammonium ion that acts as a mesopore-directing agent without interfering with the role of the first structure directing agent. This is about the manufacturing method of hierarchically structured MFI zeolite.

We overcome the mass transfer limitations of existing MFI zeolites and present a solution for the production of acetylene-based sustainable aromatics.

The catalyst using this technology maintains the excellent properties of existing zeolites while maximizing mass transfer efficiency, showing excellent catalytic activity in the conversion reaction from acetylene to high value-added aromatic compounds such as benzene, toluene, and xylene. In particular, it can contribute to the development of a sustainable chemical industry by improving xylene production yield by up to 7 times

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Key Features:

• Using two types of structure-directing agents (SDA) simultaneously to manufacture MFI zeolite with a hierarchical structure in which micropores and mesopores coexist
• First structure-directing agent: A non-benzene-based directing agent (e.g. tetrapropylammonium hydroxide) forms a regular microporous structure that becomes the skeleton of MFI zeolite
• Second structure-directing agent: Containing a benzene ring Cationic surfactant (e.g., benzyltrimethylammonium bromide) additionally forms mesopores without interfering with the formation of microstructure
• Excellent performance in the conversion reaction from acetylene to aromatic compounds, significantly increasing aromatic compound yield by about 2 times compared to existing catalysts, and especially xylene yield by about 7 times

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This technology was developed through the National Research Foundation of Korea's research project on catalyst technology for producing BTX from methane via acetylene.

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Surfactant-free gold nanodot hollow silica nanoparticles

This technology concerns hollow silica nanoparticles containing gold nanodots, which are nanocarriers for the dual treatment of chemotherapy and photothermal therapy.

Existing nanocarriers for cancer treatment had problems with drug leakage and toxicity due to surfactants. This technology presents gold nanodot-containing hollow silica nanoparticles and a method for their preparation that overcome these limitations. These nanoparticles are a dual therapeutic agent that performs both chemotherapy and photothermal treatment at the same time. They are easily manufactured in a single process and do not use surfactants harmful to the human body, making them highly biocompatible.

In particular, the photothermal effect is amplified through dopamine and hyaluronic acid coating, side effects are minimized by precisely controlling drug release depending on pH, and the tumor-targeting ability of hyaluronic acid is utilized to selectively deliver the drug to cancer cells, maximizing the synergy effect of combination treatment

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Key Features:

• An in-situ synthesis method that simultaneously forms the structure of hollow silica nanoparticles and the formation of gold nanodots that produce photothermal effects in one process.
• Forms a hollow structure with an empty interior by etching silica nanoparticles using polyethyleneimine (PEI) and a gold precursor. This complex binds to silica to promote efficient etching and gold nano-dot formation.

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This technology was developed through the National Research Foundation of Korea's neural stem cell differentiation induction research project using multi-functional smart nanotransmitters.

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Blockchain-based security system for vehicle hacking defense

This technology is about a distributed consensus protocol in a distributed network. It is about a distributed consensus protocol method that allows participants in the system to maintain the same authentication key in an environment where encryption authentication keys are dynamically generated based on blockchain in a bus-type distributed network, such as an in-vehicle network. It wasn't enough.

To solve these problems, this technology proposes an efficient distributed consensus protocol that allows all ECUs to maintain the same key even when message reception fails in a blockchain-based dynamic key generation environment. This protocol satisfies CAN communication characteristics and real-time, and ensures encryption key matching between ECUs, strengthening the reliability and security of the vehicle's internal network, presenting an essential solution to vehicle hacking defense.

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Key Features:

• Minimizes unnecessary network load by not intervening in normal times and operating only when a failure such as message omission occurs
• Defines the state of the ECU as 'normal state', 'error state', and 'consensus state', and solves the key mismatch problem by operating the protocol according to each state and transition condition
• Efficiently utilizes three new message types such as error flag, consensus request, and consensus message, and EEPROM data saved from previous driving Perform consensus
• Minimize network overhead by reducing unnecessary communication with the 'Lazy' method that operates only when a message is missed, and adopt a regression method that is efficient in terms of time and memory compared to existing methods (rollback, replication)

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This technology was developed through the Information and Communication Technology Promotion Center's research project on developing adaptive blockchain platform technology and training professional personnel.

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High-speed VOC detection, real-time color change composite sensor

This technology is about a sensor that can visualize the detection of the target object in color, and is about a complex sensor and manufacturing method that can expect rapid detection by using the characteristics of a gel that changes in volume when exposed.

Existing volatile organic compound (VOC) detection methods have limitations such as long measurement times, large equipment, and high costs, making real-time analysis difficult.

This technology is a complex sensor that uses gel-crystallized particles to quickly detect VOCs through color changes. It has a response speed up to 3,000 times faster than existing methods, and enables real-time on-site monitoring through intuitive color changes. It is intended to provide a simple, quick and inexpensive sensor that can be used to check health factors or detect environmental changes.

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Key Features:

• The principle of changing the visible color by changing the distance between colloidal particles due to volume change and changing the wavelength of reflected light
• Forming a colloidal crystal structure of the desired shape using a hydrophilic/hydrophobic pattern or inkjet printing method on a substrate
• Coating the formed colloidal crystal structure with a flexible component (e.g. polydimethylsiloxane, PDMS) that can absorb VOCs
• The presence of VOCs is detected by immediate color change Convenient to use because it can be detected

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This technology was developed through the Korea Evaluation Institute of Industrial Technology's [RCMS] Neovascularization-targeting nanocomposite and on-de research project for the treatment of retinal degenerative disease.

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