Abstract:
Disclosed are a czochralski apparatus for growing crystals and a purification method of waste salts using the same. More particularly, the present invention provides a czochralski apparatus for growing crystals comprising screw thread for fixing salt crystals mounted on a pulling bar of the apparatus in order to prevent desorption of crystals caused by load thereof during a crystal growing process without requiring alternative seed crystals and, in addition, a method for purification of waste salts, which can isolate impurities from molten waste salts using a czochralski crystal growing process without alternative adsorption medium, does not generate secondary wastes and may continuously purify the waste salts.
Abstract:
Provided are a method of preparing a silica powder coated with an antibacterial agent and a topical dermatological composition including the silica powder, and more particularly, a method of preparing a silica powder coated with an antibacterial agent by forming a silica particle by inducing a reaction between silicon alkoxide and alcohol solvent in the presence of a catalyst and then forming an silver and metallic coating layer on the silica particle, and a method of preparing a topical dermatological composition including the silica powder. The silica powder coated with the antibacterial agent may have high antibacterial capability, and thus, topical dermatological products including the silica powder may be maintained for a long time without using a chemical antiseptic agent that may irritate the skin and cause an allergy in the human body. Even if a small amount of expensive silver (Ag) ion material is used, the silica powder has excellent antibacterial capability and stability. In addition, since the silica powder exhibits bright color, colors may be freely expressed when used in a composition of cosmetics, and thus, there is no is limit in using the silica powder in bright-color cosmetics as well as in dark-color cosmetics.
Abstract:
An electro-luminescence display device includes an electro-luminescence panel having a plurality of pixels at pixel areas defined by intersections between data lines and gate lines, each of the pixels including: an electro-luminescence cell connected to receive a supply voltage, a driving thin film transistor controlling a current amount flowing through the electro-luminescence cell, and a bias switch connected to a gate terminal of the driving thin film transistor, the bias switch selectively applying an inverse voltage to the driving thin film transistor.
Abstract:
An apparatus and method for power allocation in a mobile communication system are provided. A transmitting method includes allocating a certain fraction of total power to a common control channel; allocating available power corresponding to the remaining fraction of the total power to remaining control channels except for the common control channel among control channels transmitted in a current time slot by considering the remaining control channels; calculating a gain value of each control channel according to power allocated to each control channel; and regulating a gain of each control channel, which is to be transmitted to one or more Access Terminals (ATs), according to the calculated gain value. Therefore, reception throughput of each control channel can be improved.
Abstract:
Provided are a lamp socket structured to realize a slimmer display device, and a display device having the lamp socket. The lamp socket includes: a body portion; a connection terminal for connection of the lamp socket to a terminal of a lamp; a compliant portion which connects the body portion and the connection terminal and includes a first portion connected to the connection terminal and a second portion connected to the body portion; and one or more fixing portions which extend from the body portion, wherein the first portion and the second portion at least partially overlap each other.
Abstract:
A piezoelectric vibrator is disclosed. A piezoelectric vibration member vibrates according to the change of polarity of applied voltage while the edge portions or a central portion shows maximum displacement with the central portion or the edge portions as an acting point of vibration, respectively. Being combined integrally with the portion of maximum displacement of the piezoelectric vibration member by a fastening member, a weight vibrates together with the vibration of the piezoelectric vibration member and amplifies the vibration. A vibration support member has one end fixed to the object to transfer vibration to and the other end combined to a specific portion of the piezoelectric vibration member, supporting the piezoelectric vibration member so as to vibrate up and down with the specific portion as an acting point of vibration.
Abstract:
A method and apparatus for providing information, and a computer readable storage medium having recorded thereon a program for executing the method, are provided. The method includes receiving information from at least one device included in a location-based group; transmitting information of the location-based group based on the received information to an external device; receiving at least one piece of targeting information regarding the location-based group based on the information of the location-based group from the external device; and outputting the received at least one piece of targeting information.
Abstract:
A system, apparatus and method to control the output of a radio frequency signal in a wireless local area network (LAN) system having an infrastructure. The system includes an access point which periodically transmits a frame including output control information used to control the output of the radio frequency signal, and a wireless terminal apparatus including a wireless transceiver module which receives the frame and a control module which extracts the output control information from the received frame, and controls the output of the radio frequency signal by the wireless transceiver module according to the extracted output control information.
Abstract:
A resin blend composition of a polyamide resin and a polyester resin is described, which includes a polyamide resin, a polyester resin and an epoxy resin. The resin blend composition can have improved compatibility between the polyamide resin and the thermoplastic polyester resin, and therefore mechanical properties (strength, bending strength, elasticity, abrasion resistance, impact strength), chemical properties (solvent resistance), thermal resistance, dimensional stability, and paintability.
Abstract:
The present invention relates to an artificial turf which comprises a base cloth made of synthetic fiber, and synthetic fiber pile yams that are protruded up and extended from the base cloth. The base cloth has a form that braids made of synthetic fiber are woven in a reticular structure. The bottom end portions of the synthetic fiber pile yarns are knitted together with the base cloth and are fixed by the base cloth, and the top end portions of the synthetic fiber pile yams are protruded up and extended from the base cloth. The artificial turf according to the present invention has a plurality of void portions naturally formed in the base cloth having a reticular structure to make growth of natural grass possible.