Abstract: A variable capacity rotary compressor includes a housing defining a cylindrical compression chamber therein and having an inlet port and an outlet port communicating with the compression chamber. A rotating shaft is provided with an eccentric part to rotate in the compression chamber. A ring piston is rotatably fitted over the eccentric part such that an outer surface of the ring piston is in contact with an inner surface of the compression chamber. A vane is installed in the housing so as to be in contact with the outer surface of the ring piston and radially reciprocates, and partitions the compression chamber into an intake part and a discharging part. A re-expansion space communicates with the compression chamber, and receives refrigerant therein. A control unit opens or closes an inlet of the re-expansion space to vary a capacity of the rotary compressor.

Abstract: Disclosed herein are a variable capacity rotary compressor and a refrigerant cycle system having the variable capacity rotary compressor. The compressor includes a cooling unit and a pressure reducing unit to reduce temperature and pressure of a bypassed refrigerant, thus allowing the bypassed refrigerant to have the same temperature and pressure as when entering a cylinder at first. The compressor includes the cylinder in which a refrigerant is compressed. An inlet pipe delivers the refrigerant into the cylinder. An outlet pipe delivers the refrigerant out of the cylinder. A bypass hole is provided at a predetermined position of the cylinder to bypass the refrigerant from the cylinder, thus varying a compression capacity. A bypass pipe connects the bypass hole to the inlet pipe to allow the refrigerant bypassed through the bypass hole to enter the cylinder. The cooling unit cools the refrigerant flowing through the bypass pipe.

Abstract: A variable capacity rotary compressor, which precisely controls variation of a compression capability into a desired discharge pressure, and which minimizes a resistance to rotation of a rotating shaft, and thus improves the capacity of the rotary compressor.

Abstract: A variable capacity rotary compressor to reduce an electric power loss thereof and includes a drive unit to generate a rotating force, a rotating shaft connected to the drive unit to rotate thereby, and a compressing cylinder through which the rotating shaft passes. A compressing chamber is defined in the compressing cylinder to compress refrigerant therein, with a first refrigerant inlet port provided at the compressing chamber to introduce the refrigerant into the compressing chamber. A capacity control unit controls an operation of the rotary compressor, so that the rotary compressor performs one of a normal-mode operation wherein the first refrigerant inlet port is maintained at an open state thereof, and the variable capacity-mode operation wherein the first refrigerant inlet port is periodically opened and closed.

Abstract: A variable capacity rotary compressor includes a housing defining a cylindrical compression chamber therein and having an inlet port and an outlet port communicating with the compression chamber. A rotating shaft is provided with an eccentric part to rotate in the compression chamber. A ring piston is rotatably fitted over the eccentric part such that an outer surface of the ring piston is in contact with an inner surface of the compression chamber. A vane is installed in the housing so as to be in contact with the outer surface of the ring piston and radially reciprocates, and partitions the compression chamber into an intake part and a discharging part. A re-expansion space communicates with the compression chamber, and receives refrigerant therein. A control unit opens or closes an inlet of the re-expansion space to vary a capacity of the rotary compressor.

Abstract: Disclosed herein are a variable capacity rotary compressor and a refrigerant cycle system having the variable capacity rotary compressor. The compressor includes a cooling unit and a pressure reducing unit to reduce temperature and pressure of a bypassed refrigerant, thus allowing the bypassed refrigerant to have the same temperature and pressure as when entering a cylinder at first. The compressor includes the cylinder in which a refrigerant is compressed. An inlet pipe delivers the refrigerant into the cylinder. An outlet pipe delivers the refrigerant out of the cylinder. A bypass hole is provided at a predetermined position of the cylinder to bypass the refrigerant from the cylinder, thus varying a compression capacity. A bypass pipe connects the bypass hole to the inlet pipe to allow the refrigerant bypassed through the bypass hole to enter the cylinder. The cooling unit cools the refrigerant flowing through the bypass pipe.

Abstract: An interference canceller. A baseband signal is input to a detector's fingers, and the fingers detect multi-path signals and estimate the baseband signal's channel. An MRC uses the finger's despread signal and the channel estimate to output a soft bit decision value, while a signal regenerator uses a hard bit decision value and the finger's channel estimate to regenerate the baseband signal. An SIR measurer uses a soft bit decision value and a despreader's channel estimate to measure an SIR. A signal selector compares each detector's SIR measurement value with a target SIR, and when the SIR measurement value is greater than the target SIR, it selects the detector's regeneration signal to group received signals. A subtractor subtracts the regeneration signal from the baseband signal.

Abstract: The present invention relates to novel thiourca derivatives as a modulator for vanilloid receptor (VR) and the phar- maceutical compositions containing the same. As diseases associated with the activity of vanilloid receptor, pain acute pain, chronic pain, neuropathic pain, post-operative pain, migraine, arthralgia, neuropathies, nerve injury, diabetic neuropathy, neurodegeneration, neurotic skin disorder, stroke, urinary bladder hypersensitiveness, irritable bowel syndrome, a respiratory disorder such as asthma or chronic obstructive pulmonary disease, irritation of skin, eye or mucous membrane, fervescence, stomach-duodenal ulcer, inflam- matory bowel disease and inflammatory diseases can be enumerated. The present invention provides a pharmaceutical composition for prevention or treatment of these diseases.

Abstract: A method and an apparatus for redistributing differentiated power for transmitting high speed packet data according to UEs in high speed packet data transport system. The method and apparatus redistribute powers, which have been already assigned in order to transmit the high speed packet data, thereby improving the performance of the system.

Abstract: The present invention provides a novel class of 4,5-diaryl-3(2H)-furanone derivatives, which inhibit strongly and selectively COX-2 over COX-1. They are useful to treat inflammation, inflammation-associated disorders, and COX-2 mediated diseases.

Abstract: Disclosed is an automatic analysis method of crude oils, using spectroscopy. A near infrared spectroscopic analysis apparatus is combined with an ordinary distillation apparatus, so as to analyze the physical properties of each oil distillate as soon as it is separated from crude oils, thereby bringing about a significant improvement in analysis accuracy and in an economical aspect. It takes only two days for one person to obtain a full assay data for crude oils by taking advantage of the method. In addition to requiring a significantly reduced equipment cost, the method enables full assay data for crude oils to be obtained quickly, thereby securing more up-to-date information about crude oils and producing an economical benefit.

Abstract: There is provided a baffle plate of a discharge muffler for a hermetic reciprocating compressor which is mounted in an inner portion of the discharge muffler mounted at a lower portion of a cylinder block so as to reduce flow noise of a refrigerant discharged to a discharge pipe, characterized in that an extended duct, which is communicated from a center portion of the baffle plate to the discharge pipe and has a diameter, is formed during a press molding. The extended duct is formed to be directed to the cover from the baffle plate by a burring process during a press molding, thereby improving the noise excluding efficiency.

Abstract: The diarylbenzopyran derivatives represented by formula I, and the pharmaceutically acceptable salts thereof, are disclosed. The composition comprising the compound of formula I, or a pharmaceutically acceptable salt thereof, shows an excellent selective inhibition of cyclooxygenase-2.

Abstract: A structure of a ventilation fan provided with a plurality of blades has a performance curve characterized by a gentle slope throughout the wide operating range instead of an S-hysteresis curve, in order to overcome a fluctuation phenomena of the operating flow rate. The blade tip cross-section lies on a first imaginary cylindrical surface and an angle of attack and pitch angle of the blade tip are formed as respective trajections by intersecting the first cylindrical surface by a second cylindrical surface whose center axis has been rotated about two axes.

Abstract: A checking circuit for checking the normal operation of a sensor comprising a sensor, a controller for switching the checking circuit operation between an open check mode and a sensing mode. The circuit for effecting the open check mode is responsive to a first logical output signal from the controller. The circuit for effecting the sensing mode is responsive to a second logical output signal from the controller, however, the sensing is only accomplished after successful completion of the open check mode.