Abstract: A quantum dot device including a first electrode and a second electrode each having a surface opposite the other, a quantum dot layer disposed between the first electrode and the second electrode, and an electron auxiliary layer disposed between the quantum dot layer and the second electrode, wherein the electron auxiliary layer includes inorganic nanoparticles including an alkaline-earth metal, and an alkali metal, an alkali metal compound, or a combination thereof, and an electronic device including the quantum dot device.

Abstract: Provided is a folding packaging cooler box convertible from a box mode to an unfolding mode or vice versa, comprising: a box portion having a bottom portion, sidewall portions and joint portions configured to connect with one another and to form a single plane in the unfolding mode; and a cooling reinforcing portion configured to be inserted to the inside of the box and to form a hexahedron shape together with said box portion when said box portion is converted into the box mode, wherein said cooling reinforcing portion comprises a reinforcing bottom portion configured to form a lower surface and to face the bottom portion of the said box portion upon conversion into the box mode; reinforcing sidewall portions configured to connect with the said reinforcing bottom portion and to face the sidewall portions of said box portion; and reinforcing joint portions configured to join said reinforcing sidewall portions, to be folded to face itself and to be in close contact with the reinforcing sidewall portions, upon

Abstract: A variable air hole covering flap device is provided and selectively opens or closes an air hole formed in a wheel deflector or a wheel cover to allow air to be introduced toward a brake. The air hole is opened only when brake cooling of a vehicle is more necessary than aerodynamic performance of the vehicle to properly control the aerodynamic performance and the brake cooling performance of the vehicle as necessary.

Abstract: Provided are a seamless charging flap opening/closing device and a vehicle including the same. A charging flap cover is additionally provided with a pop-up function to also function as an opening/closing door for an air channel of an air breather, such that the charging flap cover is integrated with the air breather to be unperceivable from the outside during driving and is only opened during charging to allow a battery to be charged. The single charging flap cover is used in common by a charging flap device and the air breather maintaining independent functions. The exterior quality of a product and the efficiency of use of a package is improved, a vehicle body has a distinctive novel exterior image, and the charging flap cover is easily matched adjacently to a moving part located adjacent thereto.

Abstract: A speed sensitive type active hidden air curtain of a vehicle includes: hole opening or closing devices configured to cover or open an air hole of a bumper facing traveling wind with any one of a bumper interlocking device, a lamp interlocking device, and a hole color change device to guide air to a space formed between a bumper and a wheel; a power connection member interlocked with a deflector guiding the traveling wind under the bumper to move the hole opening or closing devices; and a supporter maintaining tension of the power connection member. The speed type active hidden air curtain thereby implements a clean and differentiated design image of the bumper and improves appearance quality thereof by covering the air hole exposed to the outside.

Abstract: A quantum dot including a core comprising a first semiconductor nanocrystal including a zinc chalcogenide and a semiconductor nanocrystal shell disposed on the surface of the core and comprising zinc, selenium, and sulfur. The quantum dot does not comprise cadmium, emits blue light, and may exhibit a digital diffraction pattern obtained by a Fast Fourier Transform of a transmission electron microscopic image including a (100) facet of a zinc blende structure. In an X-ray diffraction spectrum of the quantum dot, a ratio of a defect peak area with respect to a peak area of a zinc blende crystal structure is less than about 0.8:1. A method of producing the quantum dot, and an electroluminescent device including the quantum dot are also disclosed.

Abstract: A quantum dot including: a core including a first semiconductor nanocrystal material including zinc, tellurium, and selenium; and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, selenium, and sulfur, wherein the quantum dot does not include cadmium, and in the quantum dot, a mole ratio of the sulfur with respect to the selenium is less than or equal to about 2.4:1. A production method of the quantum dot and an electronic device including the same are also disclosed.

Abstract: The present disclosure provides an organic electroluminescent device including: an anode; a cathode; and one or more organic material layers interposed between the anode and cathode and selected from the group consisting of a hole injection layer, a hole transporting layer, a light emitting layer, an electron transporting layer, and an electron injection layer, and further including a lifetime enhancement layer (LEL) between the light emitting layer and the electron transporting layer.

Abstract: A semiconductor device includes an active area extending in a first direction, a first transistor including a first gate electrode and first source and drain areas disposed on the active area, the first source and drain areas being disposed at opposite sides of the first gate electrode, a second transistor including a second gate electrode and second source and drain areas disposed on the active area, the second source and drain areas being disposed at opposite sides of the second gate electrode, and a third transistor including a third gate electrode and third source and drain areas disposed on the active area, the third source and drain areas being disposed at opposite sides of the third gate electrode, and the first gate electrode, the second gate electrode, and the third gate electrode extending in a second direction different from the first direction. The second transistor is configured to turn on and off, based on an operation mode of the semiconductor device.

Abstract: Provided is a folding packaging cooler box convertible from a box mode to an unfolding mode or vice versa, comprising: a box portion having a bottom portion, sidewall portions and joint portions configured to connect with one another and to form a single plane in the unfolding mode; and a cooling reinforcing portion configured to be inserted to the inside of the box and to form a hexahedron shape together with said box portion when said box portion is converted into the box mode, wherein said cooling reinforcing portion comprises a reinforcing bottom portion configured to form a lower surface and to face the bottom portion of the said box portion upon conversion into the box mode; reinforcing sidewall portions configured to connect with the said reinforcing bottom portion and to face the sidewall portions of said box portion; and reinforcing joint portions configured to join said reinforcing sidewall portions, to be folded to face itself and to be in close contact with the reinforcing sidewall portions, upon

Abstract: An image analysis method for multicenter study includes, by a multicenter study support system, recruiting and selecting a plurality of agency systems to perform multicenter study, and then distributing an analysis guide and an analysis program corresponding to a purpose and condition of the multicenter study to each of the agency systems, by each of the agency systems, collecting analysis data acquired through the analysis guide and the analysis program and then uploading the analysis data to the multicenter study support system, and by the multicenter study support system, collecting and processing the uploaded analysis data, and then sharing the data processing result with each of the agency systems.

Abstract: A semiconductor nanocrystal particle including a core including a first semiconductor nanocrystal including zinc (Zn) and sulfur (S), selenium (Se), tellurium (Te), or a combination thereof; and a shell including a second semiconductor nanocrystal disposed on at least a portion of the core, wherein the core includes a dopant of a Group 1A element, a Group 2A element, or a combination thereof, and the semiconductor nanocrystal particle exhibits a maximum peak emission in a wavelength region of about 440 nanometers (nm) to about 470 nm.

Abstract: A quantum dot including a core that includes a first semiconductor nanocrystal including zinc and selenium, and optionally sulfur and/or tellurium, and a shell that includes a second semiconductor nanocrystal including zinc, and at least one of sulfur or selenium is disclosed. The quantum dot has an average particle diameter of greater than or equal to about 13 nm, an emission peak wavelength in a range of about 440 nm to about 470 nm, and a full width at half maximum (FWHM) of an emission wavelength of less than about 25 nm. A method for preparing the quantum dot, a quantum dot-polymer composite including the quantum dot, and an electronic device including the quantum dot is also disclosed.

Abstract: A battery ledger management system, includes: a data collecting unit receiving battery production information from an external source, and receiving battery information data and vehicle information data from a data collecting device; a battery ID generation and management unit generating a unique battery ID for each battery unit based on the battery production information; a state information generation and management unit generating and managing state information, information on a current usage state of the battery for the battery ID of each battery unit using the battery information data and the vehicle information data; and a usage information generation and management unit generating and managing usage information, information on a usage history of the battery for the battery ID of each battery unit using the battery information data and the vehicle information data.

Abstract: A battery monitoring system includes a data receiver configured to receive battery information data and vehicle information data from a data collecting device connected to a vehicle, a battery management score calculator configured to calculate, based on the battery information data and the vehicle information data, factors affecting battery degradation among a charging habit, a driving habit, and a parking habit of a user, calculate, based on the factors, a battery management score, and store the battery management score in a database, and an information transmitter configured to transmit the battery management score to a terminal.

Abstract: An electroluminescent display device and a light emitting device including a blue light emitting layer include a first electrode, a second electrode, and a light emitting layer between the first electrode and the second electrode. The light emitting layer includes a blue light emitting layer including a plurality of nanostructures, the plurality of nanostructures does not include cadmium. On an application of a bias voltage, the blue light emitting layer is configured to emit light of an emission peak wavelength (?max) in a range of greater than or equal to about 445 nm and less than or equal to about 480 nm.

Abstract: Disclosed herein are a method for establishing a remote work environment for ensuring the security of a user terminal for remote work and an apparatus using the method. The method, performed by the apparatus, includes acquiring media image creation information from a user; creating a certificate for VPN access based on the media image creation information and creating a media image using the media image creation information and the certificate for VPN access; and providing the media image to the user such that the user is able to create a medium for remote work. The user terminal for remote work is booted through the medium for remote work, thereby configuring a runtime environment for remote work in which security is ensured.

Abstract: A quantum dot including a core including a first semiconductor nanocrystal including a Group III-V compound, and a shell disposed on the core and including a semiconductor nanocrystal including a Group II-VI compound, wherein the quantum dots do not include cadmium, the shell includes a first layer disposed directly on the core and including a second semiconductor nanocrystal including zinc and selenium, a second layer, the second layer being an outermost layer of the shell and including a third semiconductor nanocrystal including zinc and sulfur, and a third layer disposed between the first layer and the second layer and including a fourth semiconductor nanocrystal including zinc, selenium, and optionally sulfur, and a difference between a peak emission wavelength of a colloidal solution of the quantum dot and a peak emission wavelength of a film prepared from the colloidal solution is less than or equal to about 5 nanometers (nm).

Abstract: A vehicle body includes a plurality of shock absorber housings each covering and supporting a respective shock absorber that is configured to be connected to a respective wheel of a vehicle, a pillar member having a first end connected to one of the shock absorber housings to form a corner, wherein the pillar member connects two of the plurality of shock absorber housings to form a portion of a cabin of the vehicle, wherein the two of the plurality of shock absorber housings are disposed at a side of the vehicle at a front portion and a rear portion of the vehicle, and a supporting member disposed at the corner of the shock absorber housing, an upper end of the supporting member being coupled to the pillar member and a lower end of the supporting member being coupled to the shock absorber housing.

Abstract: Provided are an apparatus and method for detecting ventricular depolarization (QRS) of an electrocardiogram (ECG). The apparatus includes an input unit configured to receive an ECG signal, a memory configured to store a program for detecting R and ventricular depolarization using the ECG signal, and a processor configured to execute the program, wherein the processor detects a QRS interval and an R-peak using a first-order derivative filter and a max-filter.