摘要:
A quality control (QC) probe for inspecting a quality of a microarray, a method for fabricating a microarray in which the QC probe and a target probe are immobilized on a support, and a method for inspecting the quality of a microarray using the QC probe are provided. More particularly, a method for fabricating a microarray by mixing a QC probe labeled with a fluorescent material and a target probe at a certain ratio and immobilizing the mixture on a support of a microarray, a method for inspecting the quality of a microarray including identifying the immobilization state of probes by scanning a fluorescent signal produced by a fluorescent material before or after a hybridization reaction of a target probe and a target product using the prepared microarray, and a QC probe used for inspecting the quality of a microarray are provided. The QC probe can be used to identify whether or not each probe is immobilized on a support of a microarray, shape and concentration of the immobilized probe, and a bonding reaction or a hybridization reaction of a target probe and a target product. When using the microarray including the QC probe in a hybridization reaction, a reliability of experimental procedures and result analysis using the microarray can be improved. In addition, the use of a target probe having a QC function can simplify the process of fabricating a microarray.
摘要:
The method of preparing a chromium oxide catalyst for preparation of pentafluoroethane using a chloroethane compound includes heat treating chromium hydroxide powder at a temperature not higher than 300° C. to obtain chromium oxide powder, heat treating metal hydroxide, at a temperature not higher than 300° C. to obtain metal oxide powder, mixing 85-99.5 wt % of the chromium oxide powder with 0.5-15 wt % of the metal oxide powder to obtain a mixture, forming the mixture into a pellet, calcining the pellet at 200-300° C. using nitrogen gas, and fluorinating the pellet at 300-320° C. using a gas mixture including N2 and HF, and then at 320-380° C. using HF gas. The fluorination catalyst prepared using the method of this invention can be effectively used to prepare pentafluoroethane at a high yield using a chloroethane compound.
摘要翻译:使用氯乙烷化合物制备五氟乙烷的氧化铬催化剂的方法包括在不高于300℃的温度下热处理氢氧化铬粉末,得到不高于300℃的氧化铬粉末,热处理金属氢氧化物 ℃,得到金属氧化物粉末,将85-99.5重量%的氧化铬粉末与0.5-15重量%的金属氧化物粉末混合以获得混合物,将混合物形成颗粒,在200-300℃下煅烧沉淀 ℃,并使用包含N 2 H 2和HF的气体混合物,然后在320-380℃下使用HF气体在300-320℃氟化颗粒。 使用本发明的方法制备的氟化催化剂可以有效地用于使用氯乙烷化合物以高产率制备五氟乙烷。
摘要:
The present invention is directed to a method of processing an ultrasound image, comprising the steps of: a) successively acquiring ultrasound images from an object; b) sampling ultrasound images in a predetermined time interval; c) determining an image difference between a currently sampled ultrasound image and a previously sampled ultrasound image; d) if the image difference is greater than a critical value, adjusting image parameters to optimize the image parameters; and e) applying the adjusted image parameters to the ultrasound images.
摘要:
An exhaust gas heat exchanger for a cogeneration system is disclosed which includes exhaust gas discharge tubes each including a bellows tube portion formed at at least a portion of the exhaust gas discharge tube to enable the exhaust gas discharge tube to be thermally expanded and shrunken, so that it is possible to prevent the exhaust gas discharge tube from being damaged due to repeated thermal expansion and shrinkage thereof caused by hot exhaust gas passing through the exhaust gas discharge tube. Accordingly, an enhancement in durability and reliability is achieved.
摘要:
A cogeneration system is disclosed which includes a waste heat recovering heat exchanger for recovering waste heat generated from a drive source when the drive source operates to drive a generator, heating heat exchangers for heating indoor air, and a heat transfer unit for transferring heat from the waste heat recovering heat exchanger to the heating heat exchangers. The waste heat of the drive source can be used to heat indoor air present in an indoor space. Accordingly, it is possible to maximize the efficiency of the cogeneration system, and to heat indoor heat without driving a compressor.
摘要:
A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit, which comprises at least one compressor, a four-way valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, to establish a heat pump type refrigerant cycle, a pre-heat supplier to supply heat of cooling water used to cool the engine and heat of exhaust gas discharged from the engine to the outdoor heat exchanger, and thus, to pre-heat air passing around the outdoor heat exchanger, and a refrigerant over-heater to supply the heat of the exhaust gas discharged from the engine to an inlet of the indoor heat exchanger of the cooling/heating unit. In accordance with the cogeneration system, it is possible to maximize engine waste heat utilization, and thus, to achieve an enhancement in heating performance.
摘要:
A gate driving apparatus for a liquid crystal display panel with liquid crystal cells, thin film transistors, gate lines, and data lines includes a plurality of shift registers on the liquid crystal display panel to apply scanning signals to the gate lines, and a gate driving integrated circuit connected to the liquid crystal display panel to generate a plurality of control signals for controlling the shift registers.
摘要:
Provided is a scroll compressor, which allows refrigerant in a compressor chamber to be partially discharged so that frictions generated in frictional surfaces between an orbiting scroll and an Oldham ring and between the Oldham ring and a main frame may be decreased. An oil supply structure is provided in a main frame such that lubrication is smoothly performed.
摘要:
According to the present invention, there is provided a plasma polymerization surface modification of a metal for enhancing its applicability for use in refrigerating and air conditioning such as in constructing heat exchanges, by using a DC discharge plasma, comprising the steps of: (a) positioning an anode electrode which is substantially of metal to be surface-modified and a cathode electrode in a chamber, (b) maintaining a pressure in the chamber at a predetermined vacuum level, (c) blowing a reaction gas composed of an unsaturated aliphatic hydrocarbon monomer gas or fluorine-containing monomer and silicon containing monomer gas at a predetermined pressure and a non-polymerizable gas at a predetermined pressure into the chamber, and (d) applying a voltage to the electrodes in order to obtain a DC discharge, whereby to obtain a plasma consisting of positive and negative ions and radicals generated from the unsaturated aliphatic hydrocarbon monomer gas and the non-polymerizable gas, and then forming a polymer with hydrophilicity or hydrophobicity on the surface of the anode electrode by plasma deposition, and there is also provided a plasma polymerization surface modification of a metal for enhancing its applicability for use in refrigerating and air conditioning such as in constructing heat exchanges, by using an RF plasma.
摘要:
An electric cooking apparatus and method of controlling heaters thereof, in which the heaters operate according to power-ON periods and power-OFF periods set in view of a temperature of the heaters, consumption of unnecessary power is reduced, and variations of heat supplied to a cooking cavity are decreased, thus improving quality of cooking and shortening overall cooking periods. The method includes detecting a temperature of a cooking cavity, and operating the heater according to preset power-ON and power-OFF periods allowing the heaters to maintain a temperature within a range around a certain temperature when the temperature of the cooking cavity reaches a set temperature.