Abstract: Automatic methods are disclosed to identify time series segments by incorporating time series specific change definition parameters. Segments are defined as stretches in the time series with similar characteristics—with regard to the series level, growth, variance. Change definition parameters refer to a combination of acceptable ranges in these characteristics. These change definition parameters can be user-defined (i.e., API, UI), or learned from deployments and can be dynamically applied.

Abstract: Provided is a float glass manufacturing apparatus comprising a float bath configured to accommodate molten metal and to allow a glass ribbon to flow on a liquid surface of the molten metal in a first direction; a ceiling unit spaced upward apart from the float bath and elongated in the first direction; and a cooling module in at least a part of an entire region of the ceiling unit and configured to supply downward a cooling gas that cools the glass ribbon.

Abstract: The present invention relates to a method of producing anhydrosugar alcohol by dehydrating sugar alcohol at high pressure in the presence of a catalyst which is less acidic than a conventional sulfuric acid catalyst and which can suppress side reactions at high temperature. According to the present invention, anhydrosugar alcohol can be produced in a yield similar to that in a vacuum reaction.

Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.

Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.

Abstract: A glass light-guide plate having a small color difference and a manufacturing method thereof are provided. The light-guide plate includes glass containing 70 to 85 wt % of SiO2, 5 to 20 wt % of B2O3, 0 to 5 wt % of Al2O3, 1 to 7 wt % of R2O (here, R is at least one of Li, Na, and K), 0 to 0.005 wt % of Fe2O3, and less than 0.002 wt % of a transition metal oxide for adjusting a color difference.

Abstract: The present invention relates to a method of producing and purifying a high-purity anhydrosugar alcohol in high yield by a simple process and apparatus, the method includes the steps of: allowing a sugar alcohol to react in the presence of an acid catalyst in a reactor, and, at the same time, evaporating a product of the reaction; cooling the evaporated product to remove water and obtain a crude anhydrosugar alcohol; and introducing the crude anhydrosugar alcohol into a melt crystallization process to obtain a high-purity anhydrosugar alcohol.

Abstract: The present invention relates to a method of producing anhydrosugar alcohol by dehydrating sugar alcohol at high pressure in the presence of a catalyst which is less acidic than a conventional sulfuric acid catalyst and which can suppress side reactions at high temperature. According to the present invention, anhydrosugar alcohol can be produced in a yield similar to that in a vacuum reaction.

Abstract: The present invention relates to a method for producing anhydrosugar alcohol, and more particularly to a method of producing anhydrosugar alcohol using a solvent including at least two components that form an azeotrope with water at atmospheric pressure and that have significantly different boiling points. The method for producing anhydrosugar alcohol according to the present invention can increase the yield of anhydrosugar alcohol by efficiently controlling the reaction temperature by use of a solvent including at least two components that form an azeotrope with water at atmospheric pressure and that have significantly different boiling points.

Abstract: A method for producing anhydrosugar alcohol according to the present invention can increase the yield of anhydrosugar alcohol even in the absence of a catalyst or in the presence of a small amount of a transition metal salt catalyst by controlling the temperature of a high-temperature reaction, which converts sugar alcohol to anhydrosugar alcohol, in two steps, that is, a first low-temperature reaction step and a second high-temperature reaction step.

Abstract: A glass light-guiding plate which has high-temperature stability and is advantageous in being manufactured in a slim profile is provided. The glass light-guiding plate includes a glass plate including 75 to 85 wt % SiO2, 5 to 20 wt % B2O3, 1 to 5 wt % Al2O3, 3 to 8 wt % R2O (here, R is at least one of Li, Na, and K), and Fe2O3<0.0025 wt %.

Abstract: A glass light-guide plate having a small color difference and a manufacturing method thereof are provided. The light-guide plate includes glass containing 70 to 85 wt % of SiO2, 5 to 20 wt % of B2O3, 0 to 5 wt % of Al2O3, 1 to 7 wt % of R2O (here, R is at least one of Li, Na, and K), 0 to 0.005 wt % of Fe2O3, and less than 0.002 wt % of a transition metal oxide for adjusting a color difference.

Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.

Abstract: A glass light-guiding plate which has high-temperature stability and is advantageous in being manufactured in a slim profile is provided. The glass light-guiding plate includes a glass plate including 75 to 85 wt % SiO2, 5 to 20 wt % B2O3, 1 to 5 wt % Al2O3, 3 to 8 wt % R2O (here, R is at least one of Li, Na, and K), and Fe2O3<0.0025 wt %.

Abstract: The present invention relates to a method of producing and purifying a high-purity anhydrosugar alcohol in high yield by a simple process and apparatus, the method includes the steps of: allowing a sugar alcohol to react in the presence of an acid catalyst in a reactor, and, at the same time, evaporating a product of the reaction; cooling the evaporated product to remove water and obtain a crude anhydrosugar alcohol; and introducing the crude anhydrosugar alcohol into a melt crystallization process to obtain a high-purity anhydrosugar alcohol.

Abstract: The present invention relates to a method for producing anhydrosugar alcohol, and more particularly to a method of producing anhydrosugar alcohol using a solvent including at least two components that form an azeotrope with water at atmospheric pressure and that have significantly different boiling points. The method for producing anhydrosugar alcohol according to the present invention can increase the yield of anhydrosugar alcohol by efficiently controlling the reaction temperature by use of a solvent including at least two components that form an azeotrope with water at atmospheric pressure and that have significantly different boiling points.

Abstract: A method for producing anhydrosugar alcohol according to the present invention can increase the yield of anhydrosugar alcohol even in the absence of a catalyst or in the presence of a small amount of a transition metal salt catalyst by controlling the temperature of a high-temperature reaction, which converts sugar alcohol to anhydrosugar alcohol, in two steps, that is, a first low-temperature reaction step and a second high-temperature reaction step.

Abstract: The present invention relates to a method of producing anhydrosugar alcohol by dehydrating sugar alcohol at high pressure in the presence of a catalyst which is less acidic than a conventional sulfuric acid catalyst and which can suppress side reactions at high temperature. According to the present invention, anhydrosugar alcohol can be produced in a yield similar to that in a vacuum reaction.

Abstract: The present disclosure discloses a method and network device for initiating data collection based on WiFi network connectivity metrics. Specifically, detects that a value for a WiFi network connectivity metric for a WiFi connection between a client device and a WiFi network meets a particular criteria. Responsive to determining that the value meets the particular criteria, the disclosed system initiates a data collection process for collecting data associated with one or more devices while the WiFi network connectivity metric meets the particular criteria. The determining operation may be performed by a network device in response to receiving a request from a user of the client device. Also, the disclosed system stores the data collected while the WiFi network connectivity metric meets the particular criteria.

Abstract: The present disclosure discloses a method and network device for initiating data collection based on WiFi network connectivity metrics. Specifically, detects that a value for a WiFi network connectivity metric for a WiFi connection between a client device and a WiFi network meets a particular criteria. Responsive to determining that the value meets the particular criteria, the disclosed system initiates a data collection process for collecting data associated with one or more devices while the WiFi network connectivity metric meets the particular criteria. The determining operation may be performed by a network device in response to receiving a request from a user of the client device. Also, the disclosed system stores the data collected while the WiFi network connectivity metric meets the particular criteria.