Samsung Electronics Co., Ltd.

Korea Institute of Energy Research

Korea Advanced Institute of Science and Technology

Jeong Geun Kim

Hyo Hyun Choi

Sun Gi Kim

Eui Jik Kim

Seong Ryong Park

Chong Pyo Cho

Jin Su Park

Seong Soo Kim

Dae Hun Chung

Dongsu Han

Young Min Woo

Nam Sun Nho

Jong Won Choi

Si Young Park

Van Ca Phan

Vu Thuy Dan Nguyen

Byung Kwon Choi

Provided is a pyrolysis gasification apparatus for solid refuse fuel. The apparatus includes: a superheated steam housing formed in a cylindrical shape and installed in a horizontal direction, in which superheated steam is injected into the superheated steam housing; a screw casing formed in a tubular shape extending from one end to the other end inside the superheated steam housing and installed in the horizontal direction inside the superheated steam housing, in which solid refuse fuel (SRF) is introduced into the screw casing; a conveying screw with a plurality of screw blades on an outer peripheral surface, the conveying screw being installed inside the screw casing in the horizontal direction and rotating to convey the solid refuse fuel; and a superheated steam supplier for supplying superheated steam into the superheated steam housing, in which the superheated steam may move through a movement pat.

Pyrolysis gasification apparatus for solid refuse fuel

An apparatus for raising the temperature of superheated steam includes an inlet into which superheated steam is introduced, a body to raise the temperature of the superheated steam heated by an external heat source and introduced through the inlet, and an outlet provided inside the body and discharging the superheated steam temperature-raised by the body to the outside, in which an inner surface of a sidewall of the body is formed with an inner protrusion for heating the superheated steam while spirally rotating the superheated steam. The Apparatus enhances the flow of superheated steam in the process of raising the temperature by further heating superheated steam caused by waste heat generated in a waste combustion apparatus or the like, and at the same time, increases the area of contact of the superheated steam with a heat source to improve the temperature-raising efficiency.

Apparatus for raising the temperature of superheated steam and ultra-high temperature steam generator

The present disclosure relates to a decompression apparatus for superheated steam comprising: a temperature raising unit having an inlet connected to an exit side of a boiler for introducing steam discharged from the exit of the boiler, and an outlet for raising the temperature of steam introduced through the inlet and discharging it; a steam utilizing unit connected to the outlet and using the steam discharged from the outlet; and a decompression unit installed at one or all of a section between the exit side of the boiler and the inlet and a section between the outlet and the steam utilizing unit, the decompression unit controlling temperature of steam while decompressing pressure of steam. According to the decompression apparatus for superheated steam, it is possible to control the pressure and temperature of steam more precisely.

Decompression apparatus for superheated steam

The present invention relates to a wet type dust collector using electrospray and a vortex, the dust collector having a cyclonic structure and removing dust contained in exhaust gas by spraying fine droplets that are generated when high voltage is applied to the dust collector. More particularly, the present invention relates to a wet type dust collector using electrospray and a vortex, the dust collector including: a cylinder having an exhaust gas intake pipe for guiding exhaust gas containing granular pollutants at a predetermined position on the outer side, and forming an empty space; a hollow cone tapered downward, connected to the bottom of the cylinder at the top, and having a liquid discharge port at the bottom; a lid through which a hollow cylindrical gas discharge pipe is disposed to discharge gas with granular substances removed to the outside and, that is disposed on top of the cylinder; a positive (+) lead wire connected to the cylinder; and a negative (&#x2212;) lead wire connected to the gas discharge pipe, in which a liquid container having one or more liquid spray ports is disposed on the gas discharge pipe.

Wet type dust collector using electrospray and vortex

The present disclosure in some embodiments provides a method and an apparatus for accelerated loading of mobile application content which are capable of automatically discover opportunities for application acceleration to remarkably reduce a response time of a mobile application.

Method and apparatus for accelerating loading of mobile application content

In accordance with an aspect of the present disclosure, a contact structure for an electronic device may include a printed circuit board (PCB) including at least one hole vertically formed through the PCB, a housing (e.g., a mechanical part) on which the PCB is seated, and a contact element, at least part of which is brought into contact with the housing disposed on a side of the hole of the PCB and below the same. The contact element may include a contact part soldered on a peripheral portion around the hole, and a protrusion passing through the hole and making contact with the housing disposed below the PCB.

Contact element and contact structure for electronic device

A method for performing communication in the wireless sensor network is disclosed. The upper node transmits a beacon message to the lower nodes, wherein the beacon message distinguishes an indirect transmission interval, in which the upper node transmits downlink data to the plurality of lower nodes, from a direct transmission interval adjacent to the indirect transmission interval, in which the upper node receives uplink data from the plurality of lower nodes. The lower nodes determine the indirect transmission interval and the direct transmission interval from the received beacon message. The downlink data is transmitted from the upper node to the lower nodes in the indirect transmission interval. The uplink data is transmitted from the lower nodes to the upper node in the direct transmission interval. When communication is performed between the upper node and the lower nodes, the data can be efficiently transmitted from the upper node to the lower nodes.

Wireless sensor network and method for performing communication therein

A packet transmission method for a WPAN that for alleviating traffic concentration in an active period and improving network throughput by controlling packet transmission timing in the active period. A packet transmission method for a wireless personal area network including a coordinator operating with a specific duty cycle and a plurality of devices includes determining, when a packet is generated, whether there is another packet waiting to be sent; determining, if there is no other packet waiting to be sent, whether the network is in an inactive period; setting, when network is in an inactive period, a backoff time; and sending the packet when the backoff time has expired. The packet transmission method controls an initial backoff value adaptively to a duty cycle of the network.

Packet transmission method for wireless personal area network

A communication terminal and method is provided for improving channel utilization efficiency in a wireless sensor network using contention-based channel access mechanism is disclosed. The communication method according to the present invention comprises initializing, when a packet transmission is required, a contention window to a size; resetting, when a channel is assessed to be busy, the size of the contention window in a hybrid expansion mode; and attempting, when the channel is assessed to be idle, the packet transmission through the channel.

Terminal and method for wireless sensor network for determining contention windows in contention-based channel access

A wireless sensor network and data transmission method thereof provides for improving channel access efficiency and energy saving effect by using inventive carrier sensing mechanism. The data transmission method includes assessing a channel after initializing, when a packet to be transmitted is generated, a number of carrier sensing attempts (Ns) and a backoff value (W); determining, when the channel availability is assessed to be idle, whether W reaches 0; transmitting the packet if W reaches 0; and reassessing, if W does not reach 0, the channel after a duration corresponding W/(Ns-1) slot.

Growing community of inventors

Daejeon, South Korea

Jeong Geun Kim