Abstract: Cathodes and lithium secondary batteries including the cathodes are disclosed. In some implementations, a cathode may include a cathode current collector and a cathode active material layer disposed on the cathode current collector and including cathode active material particles such that the cathode active material layer satisfies a specific equation. The cathode active material particles may include lithium metal oxide particles that include nickel, and may have a mole fraction of cobalt of 0.02 or less with respect to all elements except for lithium and oxygen.

Abstract: A resonant coil coupled with an electromagnetic field is disclosed. A Fraunhofer resonant coil includes an upper spiral element and a lower spiral element, an upper conical element connected to the upper spiral element and including one or more layers formed of a plurality of plies, a lower conical element connected to the lower spiral element and including one or more layers formed of a plurality of plies, and a feeding device connected to a gap between the upper conical element and the lower conical element and configured to supply power.

Abstract: The present invention relates to a wearable pressure ulcer detection sensor, and the wearable pressure ulcer detection sensor according to the present invention includes a pressure sensor measuring pressure based on a change in capacitance caused by physical force, a temperature sensor measuring temperature based on a change in electrical conductivity due to electron hopping, and an impedance sensor including two electrodes spaced apart from each other and in contact with skin.

Abstract: A dryer appliance and a method of operating a dryer appliance are provided. The dryer includes a drum defining a drying chamber rotatably mounted within a cabinet, an additive dispensing assembly to provide a dryer additive to the drying chamber, and a controller for initiating a drying operation. The controller obtains washer operating parameters from a washing machine, determines a drying operation based on the received parameters, initiates a dry cycle, and directs a dryer additive to be dispensed based on the dryer operating schedule.

Abstract: A radio frequency (RF) weak magnetic field detection sensor includes a ferromagnetic core, a pickup coil disposed to surround the ferromagnetic core, a substrate that includes an opening, a core pad connected to the ferromagnetic core and a coil pad connected to the pickup coil, and an insulating tube interposed between the ferromagnetic core and the pickup coil. The insulating tube includes a bobbin around which the pickup coil is wound, and a core hole formed to pass through the bobbin and configured to accommodate the ferromagnetic core.

Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).

Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes cathode active material particles. The cathode active material particles include a lithium metal oxide particle containing nickel and having a mole fraction of cobalt of 0.02 or less among all elements except lithium and oxygen.

Abstract: A method of operating a washing machine appliance includes measuring a humidity value with the humidity sensor and comparing the measured humidity value to an expected humidity value. The method also includes flagging a fault in response to the measured humidity value differing from the expected humidity value by at least a predetermined threshold.

Abstract: A cylindrical secondary battery, a battery pack, and a vehicle are provided. The cylindrical secondary battery includes an electrode assembly having a first electrode tab at a first end of the electrode assembly a battery can configured to accommodate the electrode assembly through an opening portion formed at one side of the battery can, a current collecting plate including three or more tab coupling portions electrically connected to the first electrode tab, and a can coupling portion extending from ends of the tab coupling portions toward the opening portion of the battery can and having a continuous outer peripheral surface electrically connected to an inner surface of the battery can, and a top cap configured to cover the opening portion of the battery can.

Abstract: An apparatus and method for transmitting and receiving magnetic field signals in a magnetic field communication system are provided. The apparatus includes a controller configured to generate a communication signal, matching units that are configured to receive the communication signal and that respectively correspond to different matching frequencies, and loop antennas that are connected to the matching units, respectively, and that are configured to convert communication signals according to the different matching frequencies into magnetic transmission signals in the form of magnetic field energy and to transmit the magnetic transmission signals.

Abstract: Provided is a cable laying method using a cable laying apparatus capable of changing a direction of a cable, the cable laying method including: (A) installing a frame unit; (B) arranging a trailer bogie loaded with a cable drum inside the frame unit without additional loading work; (C) rotating the cable drum, which is loaded in the trailer bogie, by an under roller part; (D) changing a withdrawal direction of a cable unwound from the cable drum by a traverse part of the frame unit; (E) supplying the cable, the withdrawal direction of which is changed by the traverse part, to a cable unwinding part located at the rear of the traverse part; and (F) supplying the cable passing through the cable unwinding part to a required place through a curvature guide part located at the rear of the cable unwinding part, wherein the traverse part is configured to change a direction of the cable withdrawn in a radial direction of the cable drum to an axial direction of the cable drum.

Abstract: Provided is a cable laying apparatus capable of changing a direction of a cable, which is configured to lay a cable from a cable drum placed on a trailer bogie without additional unloading work, the cable laying apparatus including a frame unit variably installed to accommodate the cable drum therein; a traverse part provided at a side of the frame unit and configured to guide a withdrawal direction of the cable wound around the cable drum; and a cable unwinding part located at the rear of the traverse part and configured to pull the cable, wherein the traverse part is further configured to change the withdrawal direction of the cable withdrawn in a radial direction of the cable drum to an axial direction of the cable drum.

Abstract: Provided is a cable laying method using a cable laying apparatus capable of changing a direction of a cable, the cable laying method including: (A) installing a frame unit; (B) arranging a trailer bogie loaded with a cable drum inside the frame unit without additional loading work; (C) rotating the cable drum, which is loaded in the trailer bogie, by an under roller part; (D) changing a withdrawal direction of a cable unwound from the cable drum by a traverse part of the frame unit; (E) supplying the cable, the withdrawal direction of which is changed by the traverse part, to a cable unwinding part located at the rear of the traverse part; and (F) supplying the cable passing through the cable unwinding part to a required place through a curvature guide part located at the rear of the cable unwinding part, wherein the traverse part is configured to change a direction of the cable withdrawn in a radial direction of the cable drum to an axial direction of the cable drum.

Abstract: Provided is a cable laying apparatus capable of changing a direction of a cable, which is configured to lay a cable from a cable drum placed on a trailer bogie without additional unloading work, the cable laying apparatus including a frame unit variably installed to accommodate the cable drum therein; a traverse part provided at a side of the frame unit and configured to guide a withdrawal direction of the cable wound around the cable drum; and a cable unwinding part located at the rear of the traverse part and configured to pull the cable, wherein the traverse part is further configured to change the withdrawal direction of the cable withdrawn in a radial direction of the cable drum to an axial direction of the cable drum.

Abstract: Disclosed is the electric heater including a base, and a heating unit having a plurality of unit heating elements disposed on a plate surface of the base and at least one of heating connection portions configured to heat and conductively connecting the unit heating elements to each other and non-heating connection portions configured not to heat and conductively connecting the unit heating elements to each other, thereby preventing a thermal stress concentration, thus to prevent damage to the heating unit and to enhance its output.

Abstract: Dish washer is disclosed for efficient removal of humid air formed after drying dishes. The dish washer includes a cabinet which forms an exterior of the dish washer, a tub in the cabinet to form a washing chamber for washing dishes, a water jacket mounted to one sidewall of the tub to hold water supplied from an outside of the dish washer for condensing moisture in humid air formed after washing and drying of the dishes when the humid air is brought into contact thereto, and a condensing duct mounted to an inside or an outside of the water jacket for guiding the humid air to the water jacket in removing the moisture from the humid air.

Abstract: Disclosed is the electric heater including a base, and a heating unit having a plurality of unit heating elements disposed on a plate surface of the base and at least one of heating connection portions configured to heat and conductively connecting the unit heating elements to each other and non-heating connection portions configured not to heat and conductively connecting the unit heating elements to each other, thereby preventing a thermal stress concentration, thus to prevent damage to the heating unit and to enhance its output.

Abstract: A method and system for actively controlling thrust pressure in a steam turbine is disclosed. The method may comprise monitoring a thrust pressure affecting a thrust fitting in a steam turbine, and adjusting the thrust pressure to maintain a desired thrust pressure on the thrust fitting in the steam turbine.