摘要:
A silent marker, method of marking a petroleum product with the silent marker, and method of detecting the silent marker. The marker is an ester derivative of fluorescent material, and the silent marker may be detected by measuring the fluorescence generated from the selective hydrolysis of the ester moiety under enzymatic action.
摘要:
Disclosed is a panel operating apparatus. The panel operating apparatus changes a state of a display device electrically connected to a circuit board located below a panel. The panel operating apparatus includes a tact member mounted on the circuit board, and a resilient member electrically connected to a circuit pattern of the circuit board and separated from the panel and the circuit board. The resilient member is selectively brought into contact with the panel or the tact member depending on a degree of pressure applied to the panel, thereby allowing the apparatus to be operated in a tact manner when the apparatus cannot be operated in a touch manner due to individual features of operators or external conditions.
摘要:
A substrate aligning unit includes a first driving roll, a second driving roll, a web guider, an encoder roll, and a controller. The first driving roll transfers a substrate in a first direction. The second driving roll is disposed spaced apart from the first driving roll in the first direction and transfers the substrate in the first direction. The web guider controls a position of the substrate in a second direction substantially perpendicular to the first direction. The encoder roll senses the position of the substrate to generate a sensing signal. The controller controls the first driving roll, the second driving roll, and the web guider based on the sensing signal.
摘要:
A fiber reinforced plastic bolt(FRP) and a method for producing the same are disclosed. The FRP bolt is useful in the industrial areas which require a bolt having electric-insulation, anti-corrosive, thermal-insulation, and non-magnetic properties. The method for producing the FRP bolt includes the steps of: winding a prepreg around a surface of an internal body, wherein the internal body includes a first reinforcing fiber which is unidirectionally aligned along the axis of the bolt, and a synthetic resin which is impregnated into the first reinforcing fiber, and the prepreg includes a second reinforcing fiber and a thermosetting resin which is impregnated into the second reinforcing fiber; forming a fiber reinforced plastic round bar by heat-hardening the prepreg; and forming a screw thread on the surface of the fiber reinforced plastic round bar.
摘要:
A method of forming extremely small pores in glass or a similar substrate, useful, for example, in patch clamp applications, that employs a backer plate to contain energy of a laser-induced ablation through the front surface of the substrate so as to create a rear surface shock wave providing a fire polishing of the exit aperture of the pore such as produces improved sealing with cell membranes.
摘要:
A method for providing a local user interface of an image forming apparatus is provided. The method includes supplying power to the image forming apparatus, requesting at least one of a first template and first variable data which make up a home screen of the local user interface, creating the home screen corresponding to the at least one of the first template and the first variable data, and displaying the created home screen on the local user interface.
摘要:
Provided are a display system and a method for switching a display mode. Display modes according to kinds of programs are set up and stored. When detecting program activation by a user s request, an image of the program activated in the preset display mode is displayed after confirming a preset display mode in the program.
摘要:
A signal generation apparatus, a frequency converting apparatus and a receiver, in which the signal generation apparatus includes an oscillator, a duty cycle adjusting circuit, and a signal generation circuit. The oscillator generates differential signals. The duty cycle adjusting circuit adjusts duty cycles of differential output signals, in response to at least one of a plurality of control signals, to adjust phases of the differential output signals generated according to a result of amplifying a difference between the differential signals input through a pair of input terminals so as to output duty cycle adjusted differential output signals to a pair of output terminals. The signal generation circuit outputs an in-phase signal and a quadrature-phase signal in response to the duty cycle adjusted differential output signals. The frequency converting apparatus includes a first mixer for mixing an input signal with the in-phase signal and a second mixer for mixing the input signal and the quadrature-phase signal.
摘要:
Disclosed are carbon nitride (C1-xNx) nanotubes with nano-sized pores on their stems, their preparation method and control method of size and quantity of pores thereof.The present invention further has an object of providing the C1-xNx nanotube with pores having the size of not more than 1 nm over structure of the nanotube and a method for preparing the same.Another object of the present invention is to provide the control method of the size and quantity of pores with size of not more than 1 nm in the preparation of the C1-xNx nanotube with the pores over structure of the nanotube.The present invention can produce the C1-xNx nanotube with nano-sized pores by reacting hydrocarbon gas and nitrogen gas through plasma CVD in the presence of metal catalyst particles, wherein x ranges from 0.001 to 0.2.
摘要:
A fiber reinforced plastic bolt(FRP) and a method for producing the same are disclosed. The FRP bolt is useful in the industrial areas which require a bolt having electric-insulation, anti-corrosive, thermal-insulation, and non-magnetic properties. The method for producing the FRP bolt includes the steps of: winding a prepreg around a surface of an internal body, wherein the internal body includes a first reinforcing fiber which is unidirectionally aligned along the axis of the bolt, and a synthetic resin which is impregnated into the first reinforcing fiber, and the prepreg includes a second reinforcing fiber and a thermosetting resin which is impregnated into the second reinforcing fiber; forming a fiber reinforced plastic round bar by heat-hardening the prepreg; and forming a screw thread on the surface of the fiber reinforced plastic round bar.