Abstract: The present application relates to a distillation device. By using the distillation device of the present application, energy loss occurring during a purification process of a mixture including an isomer, for example, a raw material including n-butyl aldehyde and iso-butyl aldehyde, can be minimized, and a high-purity product can be separated, thus increasing economic efficiency of a process.

Abstract: The present application relates to a distillation device. The distillation device of the present application can minimize energy loss occurring in a purification process of the olefin monomer, the solvent, and the raw material including, for example, 1-octene, iso-octene, and n-hexane, used in a polymerization process of the polyolefin elastomer, and can increase economic efficiency by isolating a high-purity product.

Abstract: Provided are a purification device and method. The purification device and method make most use of an internal heat source in the distillation column in the process of distilling the raw material, and reduce use of an external heat source. Thereby, the purification device and method can improve energy efficiency of all the processes.

Abstract: A capsular ring for insertion into a capsular bag of a patient's eye includes an anterior ring defining a first opening and having a first cross-sectional width and a posterior ring defining a second opening and having a second cross-sectional width. A diameter of the first opening is greater than a diameter of the second opening, and the second cross-sectional width is greater that the first cross-sectional width. The capsular ring further includes a sidewall connecting the first ring and the second ring, the sidewall comprising a plurality of orifices spaced circumferentially around the sidewall.

Abstract: An electronic apparatus operated based on an OS is provided. The electronic apparatus includes a storage to store the OS, a virtual device program capable of generating a virtual device executed based on the OS, and at least one program; and at least one processor to execute the virtual device program to generate the virtual device, and to execute the OS to determine whether a first program having an administration authority assigned by the OS from among the at least one program has access authority to data about the virtual device in response to an attempt to access the data from the first program and to selectively permit the access to the data based on the determined access authority. With this, the electronic apparatus may restrain the access to the virtual device or the data thereabout according to a presence of the access authority, thereby safely protecting the virtual device or the data.

Abstract: Provided are a method of and a device for purifying isopropyl alcohol. Water may be effectively removed from a feed including water and isopropyl alcohol while consuming a minimum amount of energy, and therefore, a high-purity isopropyl alcohol may be obtained.

Abstract: A capsular ring includes substantially circular anterior and posterior surfaces each defining a central void of the capsular ring, at least a portion of the anterior and posterior surfaces being substantially flat. The capsular ring further includes an exterior surface extending around the circumference of the capsular ring between the anterior surface and the posterior surface, wherein there is a sharp transition between the exterior surface and both the anterior surface and the posterior surface. The capsular ring further includes a plurality of orifices spaced circumferentially around the exterior surface and a plurality of haptics spaced circumferentially around the exterior surface and extending outwardly from the capsular ring; each of the plurality of haptics being configured, upon insertion of the capsular ring into a capsular bag of a patient's eye, to engage an equatorial region of the capsular bag of the patient's eye.

Abstract: The present application relates to a distillation device, and according to the distillation device of the present application, in first and second compounds being capable of forming an azeotrope, by introducing the second compound having a relatively high boiling point into a supply port located below the first compound having a relatively low boiling point, the first compound can be previously separated from the top of a first distillation column and the content of the first compound in the flow discharged from the bottom of the first distillation column can be minimized, and thus, as a moving route of the first compound is minimized, the second compound can be separated in high purity.

Abstract: The present application relates to a heat recovery apparatus and method. According to the heat recovery apparatus and method, low-level heat sources at a temperature less than 100° C. discharged from industrial settings or various chemical processes, for example, a petrochemicals manufacturing process are not wasted but used to generate steam and the generated steam is used for various processes to reduce an amount of consumed high-temperature steam that is an external heat source to be used for a reactor or distillation column, thereby not only maximizing energy reduction efficiency but also autonomously producing power consumed by a compressor. Also, an evaporation phenomenon of a part of a refrigerant flow which passes through the compressor may be reduced, thereby recovering heat with excellent efficiency.

Abstract: Disclosed are an organic light emitting diode (OLED) display device and a method for driving the same, which are capable of simplifying the configuration of an overcurrent prevention circuit while preventing overcurrent generation at an image display panel, and achieving a reduction in production costs. The OLED display device includes an image data converter for analyzing input image data, to reduce the possibility of overcurrent generation and to prevent overcurrent generation, modulating image data and a grayscale voltage level (or a gamma voltage level) of a next frame when overcurrent is generated, and outputting the modulated image data and the modulated grayscale voltage (or the modulated gamma voltage), and a timing controller for arranging the image data from the image data converter to match a size of an image display panel, supplying the arranged image data to a data driver, and generating a data control signal to control the data driver.

Abstract: The present application relates to an apparatus and method for purifying cumene. The apparatus and method for purifying cumene according to the present application can reduce the amount of energy consumption which occurs during purification processes and can provide an apparatus and method capable of efficiently purifying cumene.

Abstract: The present application relates to a heat recovery apparatus and a method thereof, according to the heat recovery apparatus and a method thereof according to an embodiment of the present application, steam of 120° C. or more may be generated using only one heat exchanger using waste heat of a low-grade heat source in the state of a sensible heat of 70° C. or more discharged in industrial sites or various chemical processes, for example, such as a manufacturing process of petrochemicals, and the generated steam may also be used in various processes, and thus the use of high temperature steam which is an external heat source to be used in a reactor or a distillation column may be decreased, thereby maximizing energy saving efficiency.

Abstract: The present application relates to an apparatus and method for purifying cumene. The apparatus and method for purifying cumene according to the present application can reduce the amount of energy consumption which occurs during purification processes and can provide an apparatus and method capable of efficiently purifying cumene.

Abstract: A dividing wall distillation column for producing high-purity 2-ethyl hexanol including a condenser, a reboiler and a main column having a dividing wall. The main column is divided into a column-top zone, an upper feed zone, an upper outflow zone, a lower feed zone, a lower outflow zone and a column-bottom zone. A crude 2-ethyl hexanol raw material (F) flows in a middle inflow plate NR1 in which the upper feed zone and the lower feed zone come in contact with each other, a low boiling point component (D) flows out from the column-top zone, a high boiling point component (B) flows out from the column-bottom zone, and a middle boiling point component (S) flows out through a middle outflow plate NR2 in which the upper outflow zone and the lower outflow zone come in contact with each other, where the middle boiling point component is 2-ethyl hexanol.

Abstract: Disclosed are a heat recovery device and a heat recovery method. According to the heat recovery device, it is possible to recovery heat which is discontinuously generated in a batch reactor. In addition, a heat-exchanged heat exchange medium is supplied to a heat storage facility so that various kinds and a great quantity of steams can be produced, if necessary, thereby utilizing these produced steams in various industrial fields.

Abstract: A capsular ring for insertion into a capsular bag of a patient's eye includes an anterior ring defining a first opening and having a first cross-sectional width and a posterior ring defining a second opening and having a second cross-sectional width. A diameter of the first opening is greater than a diameter of the second opening, and the second cross-sectional width is greater that the first cross-sectional width. The capsular ring further includes a sidewall connecting the first ring and the second ring, the sidewall comprising a plurality of orifices spaced circumferentially around the sidewall.

Abstract: A capsular ring includes substantially circular anterior and posterior surfaces each defining a central void of the capsular ring, at least a portion of the anterior and posterior surfaces being substantially flat. The capsular ring further includes an exterior surface extending around the circumference of the capsular ring between the anterior surface and the posterior surface, wherein there is a sharp transition between the exterior surface and both the anterior surface and the posterior surface. The capsular ring further includes a plurality of orifices spaced circumferentially around the exterior surface and a plurality of haptics spaced circumferentially around the exterior surface and extending outwardly from the capsular ring; each of the plurality of haptics being configured, upon insertion of the capsular ring into a capsular bag of a patient's eye, to engage an equatorial region of the capsular bag of the patient's eye.

Abstract: Provided are a method of and a device for purifying isopropyl alcohol. Water may be effectively removed from a feed including water and isopropyl alcohol while consuming a minimum amount of energy, and therefore, a high-purity isopropyl alcohol may be obtained.

Abstract: Provided are a method of and a device for purifying isopropyl alcohol. Water may be effectively removed from a feed including water and isopropyl alcohol by consumption of the minimum amount of energy, and therefore, a high purity isopropyl alcohol may be obtained.

Abstract: Provided are a method of and a device for purifying isopropyl alcohol. Water may be effectively removed from a feed including water and isopropyl alcohol while consuming a minimum amount of energy, and therefore high-purity isopropyl alcohol may be obtained.