Abstract: Provided are a silicon ingot slicing apparatus capable of slicing silicon ingots in various forms such as blocks or wafers using microbubbles and wire electric discharge machining.

Abstract: The present invention relates to a novel salt of (R)-(1-methylpyrrolidine-3-yl)methyl(3?-chloro-4?-fluoro-[1,1?-biphenyl]-2-yl)carbamate and a crystal form thereof. Also, the novel salt of (R)-(1-methylpyrrolidine-3-yl)methyl(3?-chloro-4?-fluoro-[1,1?-biphenyl]-2-yl)carbamate and the crystal form thereof according to examples of the present invention have remarkably excellent stability, hygroscopicity and solubility.

Abstract: The present invention relates to a novel salt of (R)-(1-methylpyrrolidine-3-yl)methyl(3?-chloro-4?-fluoro-[1,1?-biphenyl]-2-yl)carbamate and a crystal form thereof. Also, the novel salt of (R)-(1-methylpyrrolidine-3-yl)methyl(3?-chloro-4?-fluoro-[1,1?-biphenyl]-2-yl)carbamate and the crystal form thereof according to examples of the present invention have remarkably excellent stability, hygroscopicity and solubility.

Abstract: The present disclosure relates to a novel tetrahydropyridine derivative compound, a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, methods for preparing the compounds, methods for inhibiting UDP-3-O—(R-3-hydroxymyristoyl)-N-acetylglucosamine deacetylase (LpxC), methods for treating Gram-negative bacterial infections, the use of the compounds for the preparation of therapeutic medicaments for treating Gram-negative bacterial infections, and pharmaceutical compositions for prevention or treatment of Gram-negative bacterial infections, which contain the compounds. The compounds represented by formula I, stereoisomers thereof or pharmaceutically acceptable salts thereof according to the present disclosure can exhibit excellent effects on the treatment bacterial infections.

Abstract: Disclosed is a wafer slicing apparatus which cuts a silicon ingot to fabricate a silicon wafer, and more specifically, a silicon wafer slicing apparatus cutting the silicon ingot using wire discharge machining is disclosed. The present invention provides a silicon wafer slicing apparatus using wire discharge machining comprising: a water tank which contains an electrolyte; a cutting wire which has a cutting section dipped into the water tank and is transferred by a wire driving means; an ingot transferring unit which includes an electrode on which a silicon ingot, an object to be cut, is fixed, and moves the silicon ingot up and down within the cutting section of the cutting wire; an electrolyte circulating means which circulates and refines the electrolyte stored in the water tank; and a power supply unit which supplies a source voltage to the electrode of the ingot transferring unit and the cutting wire.

Abstract: Provided are a silicon ingot slicing apparatus capable of slicing silicon ingots in various forms such as blocks or wafers using microbubbles and wire electric discharge machining.

Abstract: The present disclosure relates to a novel tetrahydropyridine derivative compound, a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, methods for preparing the compounds, methods for inhibiting UDP-3-O—(R-3-hydroxymyristoyl)-N-acetylglucosamine deacetylase (LpxC), methods for treating Gram-negative bacterial infections, the use of the compounds for the preparation of therapeutic medicaments for treating Gram-negative bacterial infections, and pharmaceutical compositions for prevention or treatment of Gram-negative bacterial infections, which contain the compounds. The compounds represented by formula I, stereoisomers thereof or pharmaceutically acceptable salts thereof according to the present disclosure can exhibit excellent effects on the treatment bacterial infections.

Abstract: The present invention provides an auto coffee drip apparatus comprising: a housing; a dripper tray module which is fixed to an external one side of the housing and in which a dripper storing the coffee powders is seated; a drip head module which is provided on an upper part of the dripper tray module so as to be spaced apart by a predetermined interval and injects water into the dripper; and a boiler module which is provided inside the housing and is connected to the drip head module to supply the heated water to the drip head module.

Abstract: Provided are biphenyl derivatives having the structure of Formula 1: stereoisomers thereof, and pharmaceutically acceptable salts thereof, wherein R1 is hydrogen, halogen, hydroxy, substituted or unsubstituted C1-C6 alkyl, or C1-C6 alkoxy; R2, R3 and R4 are each independently hydrogen, halogen, substituted or unsubstituted amino, nitro, cyano, hydroxy, substituted or unsubstituted C1-C6 alkyl, substituted or unsubstituted C1-C6 alkoxy, or —C(O)R6; R5 is hydrogen or C1-C6 alkyl; n is 0 or 1; and R6 is hydrogen or amino, methods for preparing the same, and a pharmaceutical composition containing the same.

Abstract: The present invention provides novel biphenyl derivatives, isomers thereof, or pharmaceutically acceptable salts thereof, methods for preparing the same, and a pharmaceutical composition containing the same. The novel biphenyl derivatives, isomers thereof, or pharmaceutically acceptable salts thereof, as disclosed in the present invention, act as muscarinic M3 receptor antagonists, and thus are useful for the prevention or treatment of a disease selected from the group consisting of chronic obstructive pulmonary disease, asthma, irritable bowel syndrome, urinary incontinence, rhinitis, spasmodic colitis, chronic cystitis, Alzheimer's disease, senile dementia, glaucoma, schizophrenia, gastroesophageal reflux disease, cardiac arrhythmia, and hyper-salivation syndromes.

Abstract: An apparatus for producing Si nanoparticles using microwave plasma and a method of producing Si nanoparticles using the same are disclosed.

Abstract: Disclosed is a wafer slicing apparatus which cuts a silicon ingot to fabricate a silicon wafer, and more specifically, a silicon wafer slicing apparatus cutting the silicon ingot using wire discharge machining is disclosed. The present invention provides a silicon wafer slicing apparatus using wire discharge machining comprising: a water tank which contains an electrolyte; a cutting wire which has a cutting section dipped into the water tank and is transferred by a wire driving means; an ingot transferring unit which includes an electrode on which a silicon ingot, an object to be cut, is fixed, and moves the silicon ingot up and down within the cutting section of the cutting wire; an electrolyte circulating means which circulates and refines the electrolyte stored in the water tank; and a power supply unit which supplies a source voltage to the electrode of the ingot transferring unit and the cutting wire.

Abstract: The present invention provides a novel benzamide derivative or a pharmaceutically acceptable salt thereof, a method for preparing the same, and a 5-HT4 receptor agonist containing the same as an active ingredient. Benzamide derivatives of the present invention have a superior affinity for 5-HT4 receptors, a capability to reduce a gastric emptying time and a low toxicity, and consequently are therapeutically effective for the treatment of a variety of diseases associated with 5-HT4 receptors.

Abstract: The present invention provides an auto coffee drip apparatus comprising: a housing; a dripper tray module which is fixed to an external one side of the housing and in which a dripper storing the coffee powders is seated; a drip head module which is provided on an upper part of the dripper tray module so as to be spaced apart by a predetermined interval and injects water into the dripper; and a boiler module which is provided inside the housing and is connected to the drip head module to supply the heated water to the drip head module.

Abstract: A battery system is disclosed. The battery system includes a plurality of battery cells, and a battery cell balancing unit, configured to adjust voltages across each of the battery cells to reduce variation among the voltages across the battery cells. The battery cell balancing unit includes a controller configured to receive a DC reference current and to generate an AC current based on the DC reference current, a transformer, a rectifier circuit including a rectifier connected to the output coil, and a switching unit including a plurality of switches, each configured to selectively connect the rectifier to one of the battery cells.

Abstract: A power conversion device includes a sensor and a controller, The sensor detects a predetermined condition. The controller controls heating of a battery when the predetermined condition is detected by the sensor. The controller controls heating of the battery based on at least one of a battery charging operation or a battery discharging operation.

Abstract: A power conversion device having a battery heating function includes a battery, a converter, a temperature sensor, and a controller. The converter is coupled between the battery and a DC link. The temperature sensor measures a temperature of the battery. The controller controls the converter based on the temperature measured by the temperature sensor so that the battery repeats charging and discharging during the battery heating mode, thereby heating the battery.

Abstract: A power conversion device having a battery heating function includes a battery, a bidirectional converter including a first circuit unit coupled between the battery and a DC link, a switch between a second node and a first node to which the first circuit unit and the battery are coupled, and second and third circuit units each coupled between the second node and the DC link; and a controller controlling the bidirectional converter to heat the battery in a battery heating mode.

Abstract: A battery system is disclosed. The battery system includes a plurality of battery cells, and a battery cell balancing unit, configured to adjust voltages across each of the battery cells to reduce variation among the voltages across the battery cells. The battery cell balancing unit includes a controller configured to receive a DC reference current and to generate an AC current based on the DC reference current, a transformer, a rectifier circuit including a rectifier connected to the output coil, and a switching unit including a plurality of switches, each configured to selectively connect the rectifier to one of the battery cells.

Abstract: The present invention provides a novel benzamide derivative or a pharmaceutically acceptable salt thereof, a method for preparing the same, and a 5-HT4 receptor agonist containing the same as an active ingredient. Benzamide derivatives of the present invention have a superior affinity for 5-HT4 receptors, a capability to reduce a gastric emptying time and a low toxicity, and consequently are therapeutically effective for the treatment of a variety of diseases associated with 5-HT4 receptors.