Abstract: A nonvolatile memory device includes an upper insulating layer. A first substrate is on the upper insulating layer. An upper interlayer insulating layer is on the first substrate. A plurality of word lines is stacked on the first substrate in a first direction and extends through a partial portion of the upper interlayer insulating layer. A lower interlayer insulating layer is on the upper interlayer insulating layer. A second substrate is on the lower interlayer insulating layer. A lower insulating layer is on the second substrate. A dummy pattern is composed of dummy material. The dummy pattern is disposed in a trench formed in at least one of the first and second substrates. The trench is formed on at least one of a surface where the upper insulating layer meets the first substrate, and a surface where the lower insulating layer meets the second substrate.

Abstract: The present invention relates to a solid polymer electrolyte including a porous substrate formed of an inorganic fiber containing an ethylenically unsaturated group, a polymer compound coupled to the inorganic fiber and including a polymer network in which an oligomer containing a (meth)acrylate group is coupled in a three-dimensional structure, and a lithium salt, and to a lithium secondary battery including the same.

Abstract: A display device includes: a first module including a first housing and a first roller portion; a plurality of support portions having first end portions fixed to the first roller portion and extending in a first direction; a display panel disposed to overlap the support portions and including a first surface and a second surface opposite to the first surface; and a second module including a second housing to which second end portions of the support portions are fixed. The support portions are disposed on the second surface, the support portions include a first support portion, and a second support portion spaced apart from the first support portion in a second direction intersecting the first direction, the first support portion includes a concave pattern concave in a direction facing the second surface, and the second support portion includes a convex pattern convex in the direction facing the second surface.

Abstract: The present invention relates to a system and method for monitoring the safety of users in a shaded area, wherein location information about an RFID post installed in a shaded area is identified by means of an RFID tag, so that the location of a work group working in the shaded area can be transmitted to a control server in real time, and the control server compares the location of the work group with operation information about trains, thereby determining whether the work group is in danger or not, makes notification the same, so that the safety of the work group can be secured.

Abstract: An electronic device emulating nonvolatile memory includes: a first memory including a data block in which data is stored and a metadata block in which metadata relating to the data is stored; a second memory in which data to be used by the electronic device is stored; and a processor configured to manage data of the first memory and the second memory. The processor may generate a random value for distinguishing between first data and other data when the first data is stored in the first memory, include the random value in the first data and then store the first data in the data block, and store, in the second memory, a password value obtained by encrypting information on the first data based on the random value and a roll-back key.

Abstract: An electrolyte composition and a lithium secondary battery including the same are disclose herein. The electrolyte composition has improved high temperature safety. In some embodiments, the electrolyte composition includes an additive including a compound represented by Formula 1. Each R1 is independently a single bond, an alkylene group having 1 to 10 carbon atoms, or each R2 is independently a double or triple bond including 2 carbon atoms, each R3 is independently hydrogen or an alkyl group having 1 to 4 carbon atoms, and a is an integer of 1 to 10. The additive may reinforce an SEI layer on the surface of an electrode, thereby having advantages of improved storage and lifetime characteristics at a high temperature and a decreased amount of gas generated in the battery.

Abstract: A wearable device which is mountable on a wrist of a user includes a housing including a metal structure, a display positioned within the housing, wherein the display includes a metal layer positioned within the metal structure and spaced apart from the metal structure by a given gap, a printed circuit board (PCB) positioned within the housing and including a ground region, and a control circuit positioned on the PCB and configured to feed a first point of the metal structure. The metal layer is electrically connected with the ground region of the PCB at a second point spaced from the first point by a given angle.

Abstract: There is provided a feeding network device for improved direction estimation. The feeding network device according to an embodiment of the disclosure includes a first coupler, a second coupler, a first delay, a second delay, a crossover, a third coupler, a fourth coupler, a third delay, and a fourth delay. Accordingly, one sum beam and a plurality of difference beams are emitted through the feeding network device of the array antenna, and improved direction estimation is possible through a plurality of monopulse ratios, and accordingly, improvement of direction estimation in a monopulse radar device is expected.

Abstract: The present disclosure relates to an electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same. More specifically, the electrolyte solution contains the polymer compound represented by Formula 1, and thus can improve high temperature durability, stability, and lifetime characteristics of the lithium secondary battery.

Abstract: The present invention provides a polymer electrolyte for a secondary battery, which may secure high ionic conductivity and mechanical strength, and a lithium secondary battery including the same.

Abstract: There is provided a self-diagnostic apparatus of a magnetic coupling type. The self-diagnostic apparatus according to an embodiment includes: a signal detection line which is magnetic-coupled with an RF signal line through a magnetic coupling loop; and a signal detector configured to detect a size and a phase of an RF signal by detecting a current flowing through the signal detection line. Accordingly, the apparatus grasps and diagnoses respective operation states of channels by itself in a beamforming system, without increasing and a size of the system and degrading performance.

Abstract: The present invention relates to a thermosetting electrolyte composition for a lithium secondary battery and a lithium secondary battery including the same, and particularly, to a thermosetting electrolyte composition for a lithium secondary battery, which includes LiPF6 as a first lithium salt, a non-aqueous organic solvent, and a polymer or oligomer containing a unit represented by Formula 1, wherein the polymer or oligomer containing the unit represented by Formula 1 is included in an amount of 0.6 wt % to 15 wt % based on a total weight of the thermosetting electrolyte composition for a lithium secondary battery, and a lithium secondary battery including the same.

Abstract: The present invention provides a composition for a gel polymer electrolyte, including an oligomer represented by Formula 1; a polymerization initiator; a non-aqueous solvent; and a lithium salt, and a gel polymer electrolyte and a lithium secondary battery including the same.

Abstract: A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, the non-aqueous electrolyte solution includes an ionic solution containing at least one anion selected from the group consisting of a bis(fluorosulfonyl)imide anion and a bis(trifluoromethane)sulfonylimide anion, a cation, a non-aqueous solvent, a lithium salt, a phosphite-based additive, and a surfactant including an oligomer represented by Formula 1.

Abstract: The present invention relates to a lithium secondary battery including a positive electrode, a negative electrode, a separator, which includes a coating layer including an organic binder and inorganic particles, and a gel polymer electrolyte formed by polymerization of an oligomer, wherein the organic binder and the gel polymer electrolyte are bonded by an epoxy ring-opening reaction, and a method of preparing the same.

Abstract: A lithium secondary battery is disclosed herein. In some embodiments, a lithium battery includes a positive electrode having a lithium-nickel-cobalt-manganese-based electrode active material wherein nickel has a content of 80 mol % or greater, relative to the other transition metals, a negative electrode including a silicon-based negative electrode active material, a separator, and a non-aqueous electrolyte solution including a non-aqueous organic solvent and a lithium salt, the lithium salt being contained in a concentration of 1.8 M to 5 M, and wherein the lithium salt includes LiPF6 and a lithium bis(fluorosulfonyl)imide.

Abstract: Disclosed are a mutant microorganism for producing succinic acid exhibiting improved activity of conversion of oxaloacetate to malate through the introduction of genes encoding a malate dehydrogenase, wherein an amino acid residue that interacts with a pyrophosphate moiety of NADH through an amide functional group of a main chain of malate dehydrogenase is glutamine (Gln), and a method of producing succinic acid using the same. The mutant microorganism producing succinic acid according to the present invention is capable of producing a high concentration of succinic acid at the highest productivity compared to other mutant microorganisms reported to date when the microorganism is cultured in a limited medium. In addition, the mutant microorganism is capable of producing succinic acid at higher productivity and product concentration through further advanced fermentation technology.

Abstract: An additive for a non-aqueous electrolyte, a non-aqueous electrolyte including the same, and a lithium secondary battery including the same are disclosed herein. The additive includes an ionic compound to form a coating film on an electrode surface, thereby preventing gas generation at high temperature, a cell open-circuit voltage (OCV) drop, and a decrease in capacity retention rate, which are caused by elution of metal ions from an electrode. The additive improves durability, performance, and high temperature safety of the battery.

Abstract: A lithium secondary battery is disclosed herein. The secondary battery has improved high temperature safety and may prevent generation of a large amount of gas under a high temperature condition, which prevents an increase in resistance and a decrease in capacity due to the elution of metal ions from an electrode by uniformly forming a coating film on an electrode surface during activation of the battery. A positive electrode active material of the battery includes a high concentration(s) of nickel and/or manganese and a non-aqueous electrolyte including an additive are used, which improves performance and high-temperature safety of the battery.

Abstract: A memory system includes a memory device including at least one storage region; and a controller coupled to the memory device. The controller separates write data input from an external device from metadata associated with data stored in the memory device. Based on an operation state of the at least one storage region, the controller stores the write data into a buffer storing data to be transferred to the at least one storage region in the memory device. The controller stores the metadata into the buffer regardless of the operation state of the at least one storage region. The controller transfers the write data or the metadata stored in the buffer to the memory device for storing the write data or the metadata in the memory device.