Korea Institute of Science and Technology

Korea Institute of Industrial Technology

Alticast Corporation

Jae-hwan Park

Jae-Gwan Park

Young-Jin Choi

Dong-Soon Shin

Heon-Jin Choi

Jin-Gwan Kim

Sung Woo Nam

O-hung Kwon

Dae-hee Won

Chang-Hwan Kang

Jin-young Kim

Ju-Hyun Won

Da-Hye Hyoung

Jung-Ik Lee

The technical objective of the present disclosure is to provide an apparatus for driving a three-dimensional microgravity cable that can reproduce microgravity environments such as those experienced on the moon or Mars. To this end, the apparatus for driving a three-dimensional microgravity cable of the present disclosure comprises: a frame unit for forming a virtual space; a wire unit comprising three or more wires, provided at the frame unit; a winch unit for winding or unwinding each of the three or more wires; tension measuring units, respectively provided at the three or more wires, for measuring the tensions of the respective wires; a position sensing unit, provided at the frame unit, for sensing the position of a participant; and a support unit, positioned in the virtual space, for supporting the participant by the three or more wires.

Apparatus for driving three-dimensional microgravity cable

A method and an apparatus for providing a channel service are disclosed. The method may generate a channel list including a channel number inputted by a user and a main viewing channel list and display together the channel list and the main viewing channel list. Here, the channel list includes at least one channel of which number starts from the inputted channel number, and the main viewing channel list includes one or more channels viewed mainly by the user with the received channel number.

Method and apparatus for providing a channel service

An apparatus for fabricating ZnO nanostructures includes a heating element, a horizontal reaction tube having an inlet and an outlet. The reaction tube is positioned inside the interior cavity of the heating element with the inlet disposed to introduce a carrier gas into the reaction tube. The apparatus includes a source of a carrier gas in flow communication with the inlet, a container within the reaction tube that is disposed to receive and contain source materials comprising ZnO and graphite. An array of solid substrates is located on the container above the source materials. Adjacent substrates in the array are positioned with a space in between to allow the carrier gas to impinge on the source materials in the container.

Apparatus for synthesis of ZnO nano-structured materials

Disclosed are a method of fabricating ZnO nanostructures and its apparatus, and more particularly, to a method of fabricating ZnO nanostructures from Zn gas, which is produced by a reduction process between ZnO powder and graphite, on a silicon substrate, wherein various types of nanostructures are reproducibly generated by adjusting the processing temperature and the mixed ratio between oxygen and argon gases, which are introduced into the interior of a reaction tube as carrier gases, and its apparatus.

Synthesis of ZnO nano-structured materials and its apparatus

Low dielectric constant dielectric ceramics for a borosilicate-based low temperature fired multi-layer substrate is disclosed which can be fired at a wide temperature range of above and below 900&#xb0; C. and exhibits a low loss electrical property. By controlling the types and addition amount of the alkaline earth metal oxide, the linear shrinkage behavior can be considerably controlled while maintaining the electrical property unchanged. The composition facilitates matching a linear shrinkage with a heterogeneous material having certain shrinkage characteristics.

Low dielectric constant low temperature fired ceramics

A dielectric composition that can be fired at a temperature of below 900&#xb0; C. The dielectric composition has a dielectric constant of 25&#x2013;35 and a quality factor (Qxf) of 6,000&#x2013;20,000 GHz. The composition comprises 3&#x2013;16 wt % of KO&#x2014;NaO&#x2014;LiO&#x2014;BO&#x2014;SiOsystem glass frit and 84&#x2013;97 wt % of BaO&#x2014;TiOsystem dielectric ceramics. The composition can be effectively applied to construct a part of a ceramic multi-layer packaging as a resonator form such as a filter or an antenna, etc.

Low-fire high-permittivity dielectric compositions

Low-fire high-permittivity dielecric compositions

Growing community of inventors

Seoul, South Korea

Jae-hwan Park