Abstract: The present invention relates to a negative electrode active material for a lithium secondary battery, a method for preparing same, and a lithium secondary battery comprising same. More specifically, the negative electrode active material comprises one selected from Li1.1Ti0.9O2 and a mixture in which Li1.1Ti0.9O2 and carbon nanotubes (CNTs) are mixed in a weight ratio of 8:2 to 9:1. The negative electrode active material for a lithium secondary battery, comprising the above-described components has an R-3m structure, and provided is a lithium secondary battery which exhibits high capacity and excellent lifespan characteristics, and in particular, exhibits high capacity during high-rate charging and discharging.

Abstract: A pop-up valve according to an embodiment of the present invention includes a head portion; and a foreign matter catching prevention device that is provided in a lower portion of the head portion, in which the foreign matter catching prevention device includes a body portion that is coupled to a bottom of the head portion; a protruding jaw that is formed radially in an outer circumference of the body portion and whose upper surface is in close contact with the head portion; and a first guide vane that extends downward from a bottom of the protruding jaw so as to be perpendicular to the protruding jaw and is located on one side of a second guide vane of a guide device which is coupled to an inside of a drain pipe.

Abstract: The washbasin pop-up valve according to an embodiment of the present invention comprises: a head part for opening/closing a drain; and a cover for foreign-substance sticking prevention, which has a width corresponding to the drain and extends downwards from the downside of the head part.

Abstract: The present disclosure provides a method and device for controlling a haptic interface, which can maintain stability and enhance transparency by restricting force caused by unnecessary energy generated in the sample and hold processes while controlling the haptic interface. The method includes detecting a physical parameter based on driving of the haptic interface; calculating a reaction to be sent from a virtual environment to the haptic interface according to the physical parameter; calculating a bounding parameter satisfying a condition that a haptic system is passive, using the physical parameter and the reaction; adjusting the bounding parameter to be within a preset range; calculating force to be output to the haptic interface according to the adjusted bounding parameter; and applying the calculated force to the haptic interface.

Abstract: Disclosed is a phase difference detection pixel using a microlens, which detects a phase difference without the loss of an input signal by modifying the shape of a microlens, which collects light incident into a photodiode, such that the light passes through only in a specific direction. In the phase difference detection pixel using a microlens, a signal reduction problem, which is a disadvantage of the existing phase difference detection pixel, is solved and a phase difference detection function is achieved in all areas of an image sensor. The phase difference detection pixel using a microlens is variously applied for distance measurement between objects or three-dimensional image capturing.

Abstract: The present disclosure provides a method and device for controlling a haptic interface, which can maintain stability and enhance transparency by restricting force caused by unnecessary energy generated in the sample and hold processes while controlling the haptic interface. The method includes detecting a physical parameter based on driving of the haptic interface; calculating a reaction to be sent from a virtual environment to the haptic interface according to the physical parameter; calculating a bounding parameter satisfying a condition that a haptic system is passive, using the physical parameter and the reaction; adjusting the bounding parameter to be within a preset range; calculating force to be output to the haptic interface according to the adjusted bounding parameter; and applying the calculated force to the haptic interface.

Abstract: Provided is a screwdriver. The screwdriver includes: a driver bit; a first main gear axially coupled to the driver bit; first side gears meshed with the first main gear; a second main gear disposed on a same shaft of the first main gear; second side gears meshed with the second main gear and one end of the first side gear; a coupling shaft having one end axially coupled to the second main gear; a front body for applying a rotary power to the second main gear; a rear body connected to the other end of the coupling shaft and rotatably coupled to one end of the front body for transferring power in a driver bit shaft direction; and a clutch interposed between the second main gear and the rear body for blocking a rotary power to be transferred from the front body to the second main gear.

Abstract: The present invention discloses a method for fabricating a capacitor of a semiconductor device. In the conventional art, a bit line may be shifted or bent differently from the definition on a mask due to the stress resulting from a material difference between the bit line and BPSG film. However, in the present invention, the bit line is formed after depositing an oxide material on a contact plug, thereby preventing the shift or bending phenomenon and the short phenomenon between the metal interconnection contact and bit line.