摘要:
This invention relates to a heat driven acoustic orifice type pulse tube cryocooler for installing metal knit within a driving section cooling a driving gas of an application device using a principle of high temperature superconductivity, and then homogeneously heating the driving gas by way of premixed combustion. To do this, the inventive cryocooler comprises a driver generating a flame radiating heat having a predetermined temperature, homogeneously heating a driving gas, and adiabatically compressing the driving gas so that the driving gas generates an acoustic having a predetermined frequency; a regenerator receiving the driving gas output from the driver, and cooling the driving gas; a pulse tube receiving the cold driving gas output from the generator, adiabatically compressing the driving gas, and generating the driving gas having a high temperature; a cold reservoir receiving the high temperature driving gas output from the pulse tube, and adiabatically expanding the driving gas; a first hot heat exchanger installed between the generator and the pulse tube, and exchanging heat with the outside; a cold heat exchanger installed between the pulse tube and the cold reservoir, and exchanging heat with the outside; and an orifice installed within the cold reservoir, the orifice controlling an amount of the driving gas running between the cold reservoir and the pulse tube to constantly maintain a pressure of the cold reservoir. Wherein the driving gas repeats the process of the compression and expansion centering around the pulse tube.
摘要:
Disclosed is a SRAM cell and a method of manufacturing the same. The SRAM cell comprises: a pair of access devices; a pair of pull-up devices; a pair of pull-down devices; and at least one metal plate formed on metal interconnection lines in contact with a substrate, having a dielectric film interposed between the metal plate and the metal interconnection lines, so as to increase a cell capacitance, thereby reducing a soft error rate. Herein, one metal plate may be included in each cell. In this case, the metal plate overlaps with a first one of metal interconnection lines of a node side and a node bar side, while being in contact with a second one of the metal interconnection lines of the node side and the node bar side. Also, two metal plates may be included in each cell. In this case, the metal plates overlap, respectively, with one metal interconnection line of metal interconnection lines of a node side and a node bar side, while being in contact with another metal interconnection line of the node side or the node bar side, respectively. Therefore, capacitance is additionally formed to increase cell capacitance, so that variation of the electric potentials of cell nodes, which is caused by generated electrons, is prevented, and thereby soft error can be efficiently reduced.
摘要:
An electronic device comprises a CPU, and a touch-sensitive screen operable to display a plurality of keys. Each of the plurality of keys are associated with and exhibit a predetermined value, where the keys are arranged so that the predetermined values of the keys are displayed in a random manner. The predetermined values of the plurality of keys have different predetermined display characteristics associated therewith so that the plurality of keys have varied appearances.
摘要:
The present invention relates to methods and kits for reducing the occurrence of preterm delivery and other pregnancy-related conditions in pregnant female subjects exhibiting one or more risk factors for preterm delivery and other pregnancy-related conditions. For example, the present invention relates to methods for reducing the occurrence of preterm delivery in a pregnant female subject having no history of preterm delivery and exhibiting one or more risk factors for preterm delivery (e.g., smoking during pregnancy). The methods and kits provide for the administration of a steroid hormone to the pregnant female subject.
摘要:
A method for treating a patient is provided where a sensed cardiac rhythm is used to adjust electrical stimulation that is used to activate a diaphragm to cause contraction. A cardiac rhythm management device in combination with a diaphragm stimulation device is also provided which includes a cardiac stimulation device configured to provide stimulation to control cardiac rhythm of a subject; and an electrical stimulation device configured to provided electrical stimulation to a subject to activate a diaphragm to increase functional residual capacity of the subject.
摘要:
An image sensor includes a semiconductor substrate; a pixel array disposed on the semiconductor substrate; and an insulating interlayer, formed on the semiconductor substrate, having a trench coinciding with the disposition of the pixel array, the trench having uniformly inclined inner sidewalls.
摘要:
A heat dispensing device for a cylinder includes a plurality of curve fins and each fin has a first end axially extending from an outer surface of the cylinder body and a second end of each of the fins has a Y-shaped distal end which increases the area for dispensing heat. The fins extend clockwise or counter clockwise to guide airflow to smoothly pass through the gaps between the fins.
摘要:
A varying-width recess gate structure having a varying-width recess formed in a semiconductor device can sufficiently increase the channel length of the transistor having a gate formed in the varying-width recess, thereby effectively reducing the current leakage and improving the refresh characteristics. In the method of manufacturing the recess gate structure, etching is performed twice or more, so as to form a gate recess having varying width in the substrate, and a gate is formed in the gate recess.
摘要:
A current sample-and-hold circuit of the present invention includes a storage capacitor for storing an initial image-signal current, a first transistor for receiving one of an initial image-signal current from a voltage power supply and an input image-signal current from a pixel circuit, a second transistor for connecting between the first thin film transistor and a first ground, a third transistor and a fourth transistor for biasing the gates of the first and second transistors to sample and hold the initial image-signal current using a second ground in response to a control signal and sinking the input image-signal current from a pixel circuit to the first ground in response to receiving the input image-signal current from the pixel circuit.
摘要:
The present invention relates to a shelf for a refrigerator, and a refrigerator having the same. A shelf for a refrigerator according to the present invention comprises a support plate 22 having an upper surface on which an article is to be put; a frame 24 formed to correspond to the shape of a periphery of the support plate 22 and having, at an inner side thereof, a coupling portion 30 to which the support plate 22 is coupled to the coupling portion 30 by means of a bonding member 32; and a fixing device for fixing the support plate 22 to the coupling portion 30. At this time, the fixing device may comprise a fixing member 34 having a supporting protrusion 34b penetrating though a sidewall of the frame 24 to support the support plate 22 from below. Alternatively, the fixing device may comprise an elastically deformable resilient hook and a fixing protrusion formed to face the resilient hook all of which are provided on the frame. With the shelf for a refrigerator according to the present invention constructed as above, there are advantages in that the shelf has a secure coupling structure, the process of coupling the components of the shelf is simplified, the shelf has improved durability, and production costs are reduced.