Abstract: A copolymer and a dispersion using same, the copolymer including two or more monomers selected from among a monomer containing two or more substituted or unsubstituted aromatic rings, a monomer containing a straight-chain or branched aliphatic hydrocarbon having 5 to 22 carbon atoms, and a polar monomer containing any one selected from the group consisting of cyano (CN), pyrrolidone (NC4H6O) and carboxylic acid (COOH).

Abstract: Disclosed are a mobile robot operation control method for safety management of a cleaning module and an apparatus therefor. The mobile robot operation control method for safety management according to an exemplary embodiment of the present disclosure includes a current measuring step of measuring a current value by sensing a current for a motor which is connected to a cleaning module to be driven; a cleaning module safety management step of determining a state of the cleaning module based on the measured current value and determining a safety management control mode based on the determination result; and an operation control step of controlling an operation of a mobile robot based on the safety management control mode.

Abstract: A pharmaceutical composition suitable for treating or preventing a patient with solid cancer resistant to a poly(ADP-Ribose) polymerase (PARP) inhibitor is disclosed. The composition contains 6-{4-[(5-oxo-1,2,3,4,5,6-hexahydrobenzo[h][1,6]naphthyridin-8-yl)methyl]piperazin-1-yl}nicotinonitrile or a pharmaceutically acceptable salt. A method for treating or preventing a cancer resistant to a PARP inhibitor, including administering an effective amount of 6-{4-[(5-oxo-1,2,3,4,5,6-hexahydrobenzo[h][1,6]naphthyridin-8-yl)methyl]piperazin-1-yl}nicotinonitrile or a pharmaceutically acceptable salt is also disclosed.

Abstract: A discharge muffler of a hermetic rotary compressor has a simple structure, and reduces the noises which occur due to pulsation of refrigerant and impact to a valve when the refrigerant, which is compressed in an inner space of a cylinder of the compressor, is discharged. The discharge muffler includes a muffler body which is disposed above an upper flange to define a noise reducing space with the upper flange, and has a pair of discharge openings through which the refrigerant, which is discharged to the noise reducing space, is discharged, and a phase varying means for preventing the noises which occur due to the pulsation of the refrigerant and the impact to the valve which is disposed at the discharge port, from being discharged together with the refrigerant. The phase varying means also functions to vary the phases of the noises and to counterbalance the noises.

Abstract: A discharge muffler of a hermetic rotary compressor has a simple structure, and reduces the noises which occur due to pulsation of refrigerant and impact to a valve when the refrigerant, which is compressed in an inner space of a cylinder of the compressor, is discharged. The discharge muffler includes a muffler body which is disposed above an upper flange to define a noise reducing space with the upper flange, and has a pair of discharge openings through which the refrigerant, which is discharged to the noise reducing space, is discharged, and a phase varying means for preventing the noises which occur due to the pulsation of the refrigerant and the impact to the valve which is disposed at the discharge port, from being discharged together with the refrigerant. The phase varying means also functions to vary the phases of the noises and to counterbalance the noises.

Abstract: An air conditioner having at least more than one releasable electric dust collectors for collecting foreign objects such as dust and the like floating in the air sucked into a body of the air conditioner, the air conditioner comprising at least more than one accommodation member disposed at an air suction side of a body to accommodate at least more than one electric dust collector and rotatable in the body at a predetermined rotary angle (.English Pound.