Abstract: In the present disclosure, a dehydrogenation catalyst in which cobalt in the form of single atom is supported on an inorganic oxide (specifically, silica) support in which an alkali metal in the form of single atom is fixed by alkali metal pretreatment and a method for producing the same, and a method for producing olefins by dehydrogenating corresponding paraffins, specifically light paraffins in the presence of the dehydrogenation catalyst are described.

Abstract: The present invention relates to an optical property storage device and a system using the same. The device according to an exemplary embodiment of the present invention comprises: a light transistor in which the conductance between a source electrode and a drain electrode changes in accordance with optical properties of color temperature and illumination of incident light; and a variable resistance memory device of a second terminal in which a first electrode is electrically connected to any one electrode from among the source and drain electrodes of the light transistor, and which stores a conductance changing in accordance with the changed conductance of the light transistor.

Abstract: Disclosed is a synaptic transistor, including a substrate, an expansion gate electrode disposed to extend in one direction on the substrate, a gate insulating layer including ions, covering the expansion gate electrode, and disposed on the substrate, a channel layer disposed on the gate insulating layer to correspond to one end of the expansion gate electrode, source and drain electrodes spaced apart from each other, covering both ends of the channel layer, and disposed on the gate insulating layer, and a pad electrode disposed on the gate insulating layer to correspond to the other end of the expansion gate electrode.

Abstract: In the present disclosure, a heterogeneous nickel-based oligomerization catalyst in which nickel in the form of single atom is loaded on an Al-mesoporous silicate support by ion exchange and a method for producing the same, and a method for oligomerizing light olefins, specifically C4 olefins using the catalyst are described.

Abstract: A memory device includes a clock receiver configured to receive, from a memory controller, a write clock that is used to receive write data during a data write operation, a duty monitor configured to generate first monitoring information by monitoring a duty of the write clock, and a duty adjuster configured to adjust the duty of the write clock in response to a duty control signal and output an adjusted write clock. The memory device provides the first monitoring information to the memory controller, and receives the duty control signal, generated using the first monitoring information, from the memory controller.

Abstract: The embodiments relate to a polyamide-imide film excellent in optical properties and mechanical properties, to a process for preparing the same, and to a cover window and a display device comprising the same. There are provided a polyamide-imide film, which comprises a polyamide-imide polymer and has a reduced modulus of a top surface measured by the nanoindentation method according to the ISO 14577-2 standard of 5.6 GPa or more and a haze of 1% or less, a process for preparing the same, and a cover window and a display device comprising the same.

Abstract: A memory system and a method of operating the memory system are provided. The memory system includes a plurality of semiconductor memory devices each of which includes a plurality of memory blocks. The memory system also includes a controller configured to control the plurality of semiconductor memory devices to perform a program operation, a read operation, and an operation of removing a hole in a space region on a target memory block of the plurality of memory blocks. The controller controls the plurality of semiconductor memory devices to perform the operation of removing the hole in the space region on the target memory block when an erase count of the target memory block of the plurality of memory blocks is greater than a set value.

Abstract: In the present disclosure, a heterogeneous nickel-based oligomerization catalyst in which nickel in the form of single atom is loaded on an Al-mesoporous silicate support by ion exchange and a method for producing the same, and a method for oligomerizing light olefins, specifically C4 olefins using the catalyst are described.

Abstract: The present disclosure relates to an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and a first emitting part including a first blue emitting layer, a second blue emitting layer, an electron transporting layer and positioned between the first and second electrode, wherein the first blue emitting layer includes a first host and a first dopant, and the second blue emitting layer includes a second host and a second dopant, wherein the first host is an anthracene derivative having a first deuteration ratio, and the second host is an anthracene derivative having a second deuteration ratio smaller than the first deuteration ratio, wherein the first dopant is a first compound represented by Formula 3, and wherein the first electron transporting layer includes an electron transporting material represented by Formula 9.

Abstract: The present invention relates to an organic light emitting diode including first and second electrodes facing each other; and a first emitting part including a first blue emitting layer, a second blue emitting layer, an electron transporting layer and positioned between the first and second electrode, wherein the first blue emitting layer includes a first host and a first dopant, and the second blue emitting layer includes a second host and a second dopant, wherein the first host is an anthracene derivative having a first deuteration ratio, and the second host is an anthracene derivative having a second deuteration ratio smaller than the first deuteration ratio, wherein the first dopant is a first compound represented by Formula 3, and wherein the first electron transporting layer includes at least one of a first electron transporting material represented by Formula 9 and a second electron transporting material represented by Formula 10.

Abstract: A magnesium alloy sheet according to an embodiment of the present invention includes greater than 3 wt % and less than or equal to 5 wt % of Al, 0.5 wt % to 1.5 wt % of Zn, 0.1 wt % to 0.5 wt % of Mn, 0.001 wt % to 0.01 wt % of B, 0.1 wt % to 0.5 wt % of Y, a balance amount of magnesium, and other inevitable impurities on the basis of a total of 100 wt %.

Abstract: A magnesium alloy sheet according to an embodiment of the present invention includes greater than 3 wt % and less than or equal to 5 wt % of Al, 0.5 wt % to 1.5 wt % of Zn, 0.1 wt % to 0.5 wt % of Mn, 0.001 wt % to 0.01 wt % of B, 0.1 wt % to 0.5 wt % of Y, a balance amount of magnesium, and other inevitable impurities on the basis of a total of 100 wt %.

Abstract: An aspect of the present disclosure relates to a high strength magnesium alloy with excellent flame retardancy, wherein the magnesium alloy comprises 2.0-13.0 wt % of Al, 0.1-0.5 wt % of Mn, 0.0015-0.025 wt % of B, and 0.1-1.0 wt % of Y with the remainder comprising Mg and other unavoidable impurities, and comprises 6.5% or more of an Mg—Al intermetallic compound in terms of volume fraction, the Mg—Al intermetallic compound having an average grain size of 20-500 nm.

Abstract: In an air conditioner, the air conditioner includes a casing having an indoor space region in which a first heat exchanger is installed and an outdoor space region in which a second heat exchanger is installed; a cross flow fan installed in the outdoor space region and generating air flow so as to make outdoor air pass the second heat exchanger and release heat to the outside; and a condensate water scattering means for scattering condensate water gathered in a bottom region of the casing to the second heat exchanger.

Abstract: In an air conditioner, the air conditioner includes a casing having an indoor space region and an outdoor space region; an indoor unit installed in the indoor space region, sucking air and cooling the sucked air through a first heat exchanger, an outdoor unit installed in the outdoor space region, sucking air and releasing heat of the air to the outside through a second heat exchanger; and a turbo fan installed in the outdoor space region for generating air flows so as to flow air to the second heat exchanger.

Abstract: In an air conditioner, the air conditioner includes a casing having an indoor space region in which a first heat exchanger is installed and an outdoor space region in which a second heat exchanger is installed; a cross flow fan installed in the outdoor space region and generating air flow so as to make outdoor air pass the second heat exchanger and release heat to the outside; and a condensate water scattering means for scattering condensate water gathered in a bottom region of the casing to the second heat exchanger.

Abstract: In an air conditioner, the air conditioner includes a casing having an indoor space region and an outdoor space region; an indoor unit installed in the indoor space region, sucking air and cooling the sucked air through a first heat exchanger, an outdoor unit installed in the outdoor space region, sucking air and releasing heat of the air to the outside through a second heat exchanger; and a turbo fan installed in the outdoor space region for generating air flows so as to flow air to the second heat exchanger.