摘要:
A reformer, which may be configured to prevent flash back generated from a reaction part in a catalytic oxidation reaction is disclosed. The reformer may include a first reaction part having a first chamber and a first catalyst disposed inside the first chamber, the first reaction part configured to generate heat by burning a first fuel. The reformer may include a second reaction part having a second catalyst, the second reaction part configured to be heated by the first reaction part and the second reaction part further configured to reform a second fuel. The reformer may include a flash back prevention part disposed on an upstream side of a flow of the first fuel and air, the flash back prevention part configured to introduce the first fuel and the air across a predetermined interval from the first catalyst.
摘要:
A fuel cell reformer includes a main body having a first pipe with a second pipe inside the first pipe, a thermal source unit in the second pipe, a reforming reaction unit in a first region between the first pipe and the second pipe to generate a reforming gas containing hydrogen through a reforming reaction of a fuel, and a carbon monoxide reduction unit in a region other than the first region between the first pipe and the second pipe to reduce a concentration of carbon monoxide contained in the reforming gas. A thermal treatment unit in the main body supplies thermal energy to the reforming reaction unit and the carbon monoxide reduction unit at a time of initial driving of the reformer such that the supplied thermal energy corresponds to a unique operational temperature range in the reforming reaction unit, and to a unique operational temperature range in the carbon monoxide reduction unit.
摘要:
A fuel reforming apparatus in constructed with a main body including a first pipe and a second pipe disposed in the first pipe and a heat source installed in the second pipe and adapted to generate thermal energy in the second pipe. A reforming reaction unit is formed by filling a reforming catalyst in a space defined between the first and second pipes and is adapted to generate a reformed gas containing hydrogen through a reforming reaction of the fuel. A housing encloses the main body and allows a combustion gas generated from the heat source to flow along an outer circumference of the reforming reaction unit.
摘要:
A memory device is provided including circuitry for correcting an over-erased memory cell in the memory device. The memory device may include a substrate. A control gate and a floating gate may be formed over the substrate. The memory device may include a source region and a drain region. A first resistive element may be coupled between the source region and the control gate.
摘要:
Provided is a bit patterned medium including bridges which induce exchange coupling between adjacent bits in order to reduce a switching field difference resulting from different magnetization directions of bits. The bridges and the bits are integrally formed with each other. The bits are locally connected by the bridges. A magnetostatic force for each bit is reduced due to an exchange coupling between adjacent bits, thereby reducing a switching field distribution of the bits.
摘要:
A carbon monoxide oxidizing catalyst for a reformer of a fuel cell system comprises: a compound including selenium oxide, tellurium oxide, bismuth oxide, or a combination thereof; copper oxide; and cesium oxide.
摘要:
A fuel cell system includes a fuel cell body to generate electrical energy using a reaction of hydrogen and oxygen; a reformer to generate a reformed gas containing hydrogen by reforming fuel and to supply the reformed gas to the fuel cell body; a fuel tank to store the fuel in a partially liquefied state and to supply the fuel to the reformer; a case to encase the fuel cell body and the reformer; and a refrigeration unit attached to the case to store ambient air of the fuel tank, the ambient air of the fuel tank being cooled by latent heat of vaporization of the fuel.
摘要:
A fuel cell reformer includes a main body having a first pipe with a second pipe inside the first pipe, a thermal source unit in the second pipe, a reforming reaction unit in a first region between the first pipe and the second pipe to generate a reforming gas containing hydrogen through a reforming reaction of a fuel, and a carbon monoxide reduction unit in a region other than the first region between the first pipe and the second pipe to reduce a concentration of carbon monoxide contained in the reforming gas. A thermal treatment unit in the main body supplies thermal energy to the reforming reaction unit and the carbon monoxide reduction unit at a time of initial driving of the reformer such that the supplied thermal energy corresponds to a unique operational temperature range in the reforming reaction unit, and to a unique operational temperature range in the carbon monoxide reduction unit.
摘要:
In a semiconductor memory device including memory cells and a peripheral circuit unit, a memory cell has a first gate structure formed on a semiconductor substrate; a first impurity region of a first conductive type formed in the substrate on a first side of the gate structure; and a second impurity region formed in the substrate on a second side of the gate structure, the second impurity region including: a third impurity region of the first conductive type, a fourth impurity region of the first conductive type between the third impurity region and the second side of the gate structure, and a halo ion region of a second conductive type formed adjacent to the fourth impurity region.
摘要:
A semiconductor apparatus and a design method for the semiconductor apparatus allow debugging or repairs by using a spare cell. The semiconductor apparatus includes a plurality of metal layers. At least one repair block performs a predetermined function. A spare block is capable of substituting for a function of the repair block. And at least one of the plurality of metal layers is predetermined to be a repair layer for error revision. At least one pin of the repair block is connected to the repair layer through a first pin extension, and at least one pin of the spare block is capable of extending to the repair layer. When the repair block is to be repaired, the pin extension of the repair layer and the repair block is disconnected, and at least one pin of the spare block is connected to the repair layer through a second pin extension.