摘要:
A system for detecting hazardous agents is based on cellular telephone networks. The cellular telephones in public circulation have at least one detector for detecting at least one hazardous agent and broadcast alarm packets upon detecting the hazardous agent. A computer or computer network interconnected with telephones by the cellular telephone network processes the alarm packets and sets an alarm condition for the hazardous agent in a vicinity of the cellular telephone by calculations based upon alarm packets from other telephones with detectors for the hazardous agent in the vicinity. A map of the contaminated area is also created.
摘要:
A device for restraining the rise of a step roller of an escalator prevents the step roller from colliding with rails of a track in turn around areas at the top and bottom of the escalator. The device comprises: a supplementary roller, which is disposed between an outer rail and an inner rail of the track; an elastic member for biasing the supplementary roller toward the outer rail to roll thereon; and a supporting block to which the elastic member is fixed.
摘要:
A liquid crystal display (LCD) device and its fabrication method are disclosed. Specifically, a fabrication method in which polyhedral spacers are implemented on a substrate through an ink jet method are used for an LCD device. The spacers have the polyhedral shape to increase their contact area with two substrates, and include a surface processed layer for strengthening a bonding force in its bonding with an alignment film formed on the two substrates. The spacers have a polyhedral shape for maintaining the cell gap between the substrates.
摘要:
Ventilating system including a case in communication with a room, an air supply passage in the case for drawing outdoor air into the room, an air discharge passage in the case for discharging room air to an outside of the room, and a fan both in the air supply flow passage and the air discharge flow passage in the case, thereby providing a compact, low noise, and low cost ventilating system.
摘要:
The present invention relates to an ultrasound diagnostic system and a method of forming arbitrary M-mode ultrasound images. The ultrasound diagnostic system includes: a probe for transmitting ultrasound signals toward a desired part of a target object and receiving the ultrasound signals reflected from the desired part; a scan converter for converting an ultrasound image data into a B-mode image data, the ultrasound image data being obtained based on the ultrasound signal received from the probe; an input unit for receiving an arbitrary M-mode scan line set by a user; an arbitrary M-mode processor for generating an arbitrary M-mode image data corresponding to the arbitrary M-mode scan line; and a display unit for displaying at least one of the B-mode image data, the M-mode image data and the arbitrary M-mode scan line. In accordance with the present invention, the biological information of the target object can be observed and diagnosed from an arbitrary direction and path, regardless of the direction of the ultrasound signals. Additionally, the arbitrary M-mode image, which is more similar to the real image, can be provided for the user by generating the arbitrary M-mode images corresponding to the arbitrary M-mode scan line by using ultrasound image data before scan-conversion.
摘要:
The present invention relates to a radar detector having the function of a hands-free device, so that it is possible to talk over a mobile phone in a hands-free manner by connecting the mobile phone to the radar detector. The radar detector comprises a horn antenna 100; a signal-processing unit 200 for detecting a signal received by the horn antenna 100; a laser module 300 for receiving a laser signal; a central processing unit 400 for controlling the signal-processing unit 200 by generating a pulse to measure and calculate the period and width of the signal detected by the signal-processing unit 200, to analyze and output the bandwidth and information of the signal, and to find the type and information of the signal over time; a pulse delay unit 500 for delaying or sustaining the pulse received from the central processing unit 400; a sweep voltage generator unit 600 for driving the signal-processing unit 200 by generating a voltage from the pulse delay unit 500; a warning unit 700 for audibly or visually warning the detected signal; an audio amplifier controller 800 connected to the central processing unit 400 and the warning unit 700 to amplify an audio signal; and a mobile phone connecting unit 900 installed to connect the audio amplifier controller 800 with a mobile phone 10 and including a microphone 910, a switch 920 for reception of a signal from the mobile phone, and a connection portion 930 for connection to the mobile phone. According to the present invention, a user can talk over a mobile phone using an additional function of the radar detector, without a need for mounting an additional hands-free device for conversation by the phone in a vehicle with the radar detector installed therein, thereby improving user's convenience.
摘要:
A method for assigning a channel in multi-FA CDMA mobile communication system according to the received power prevents communication quality of a FA from being inferior to that of the others by managing the interference level of the FA. The method comprises the steps of: comparing a first threshold value with received power when the base station receives a new call request; assigning a traffic channel in a first FA of the request, if the received power is less than the first threshold value, and searching a second FA of which received power is least, if not; comparing a second threshold value with the received power of the second FA; and assigning a traffic channel in the second FA if the received power is less than the second threshold value, and rejecting the request, if not.
摘要:
In the liquid crystal display panel of a horizontal electric field type, a gate pattern includes a gate electrode provided at a substrate, a gate line connected to the gate electrode and a lower gate pad electrode connected to the gate line. A data line is disposed to cross the gate line and the common line, having a gate insulating film therebetween to thereby define a pixel area. A thin film transistor is positioned at each intersection between the gate line and the data line. A transparent electrode pattern includes a pixel electrode electrically connected to the thin film transistor and disposed such that at least a portion thereof is parallel to the common electrode. An opaque conductive pattern is disposed to overlap with the transparent electrode pattern.
摘要:
A porous solid acid catalyst for producing light olefins is prepared through pillaring and a solid state reaction of a raw material mixture. The catalyst is made of a porous material having a crystalline structure that is different from that of the raw material mixture. The catalyst exhibits excellent catalytic activity (i.e., conversion and selectivity) in the production of light olefins from hydrocarbon feeds such as full range naphthas.
摘要:
A compact ventilating system having an air purifying function is disclosed, which includes a case having one end buried in a ceiling of a room, and the other end projected toward the inside of the room; an air-supplying passage of communicating the outside of the room, the case, and the inside of the room with one another, to supply an outdoor air to the inside of the room; an air-discharging passage of communicating the inside of the room, the case, and the outside of the room with one another, to discharge an indoor air to the outside of the room; an air-circulating passage of communicating the inside of the room with one point of the air-supplying passage inside the case, to introduce the indoor air to the case, and to re-supply the air to the inside of the room; and a fan provided in the case, for supplying the outdoor air introduced to the case through the air-supplying passage to the inside of the room, or re-supplying the indoor air introduced to the case through the air-circulating passage to the inside of the room.