Abstract: A method of preparing an antiviral Grateloupia chiangii-derived lectin, includes preparing a crude extract of Grateloupia chiangii that is a red alga; and purifying a Grateloupia chiangii-derived lectin (GLC) from the crude extract by means of electrophoresis using D-mannose affinity chromatography. The present invention is expected to be useful in the field of medicine and pharmaceuticals in the future by identifying an amino acid sequence of the purified lectin and a complementary base sequence coding for the purified lectin.

Abstract: Provided is a recombinant BPL3 protein having ?-GlcNAc-Sp and a glycan binding specificity, the recombinant BPL3 protein produced by synthesizing a recombinant BPL3 (rBPL3) gene encoding a Bryopsis plumosa lectin (BPL3) protein; preparing a tandem repeat rBPL3 gene including a repeating structure of the rBPL3 gene by tandemly binding the rBPL3 genes through spacers; preparing a recombinant plasmid by inserting the tandem repeat rBPL3 gene into an expression vector; and transforming an expression host by the recombinant plasmid. According to the method, the expression efficiency of the recombinant lectin is maximized and the activity of the manufactured recombinant lectin is enhanced.

Abstract: Provided is a method of manufacturing a recombinant BPL3 protein comprising: synthesizing a recombinant BPL3 (rBPL3) gene encoding a Bryopsis plumosa lectin (BPL3) protein; preparing a tandem repeat rBPL3 gene including a repeating structure of the rBPL3 gene by tandemly binding the rBPL3 genes through spacers; preparing a recombinant plasmid by inserting the tandem repeat rBPL3 gene into an expression vector; and transforming an expression host by the recombinant plasmid. According to the method, it is possible to maximize expression efficiency of the recombinant lectin and enhance the activity of the manufactured recombinant lectin.

Abstract: A method of displaying a plurality of pages on a screen of a terminal is provided. The method includes detecting a user's gesture that requests movement of the plurality of pages, identifying a movement mode relating to the movement of the plurality of pages, and moving and displaying a first page displayed on the screen and a second page connected to the first page displayed on the screen according to the identified movement mode, wherein the movement mode is one of a discrete mode and a continuous mode.

Abstract: Provided is a method of manufacturing a recombinant BPL3 protein comprising: synthesizing a recombinant BPL3 (rBPL3) gene encoding a Bryopsis plumosa lectin (BPL3) protein; preparing a tandem repeat rBPL3 gene including a repeating structure of the rBPL3 gene by tandemly binding the rBPL3 genes through spacers; preparing a recombinant plasmid by inserting the tandem repeat rBPL3 gene into an expression vector; and transforming an expression host by the recombinant plasmid. According to the method, it is possible to maximize expression efficiency of the recombinant lectin and enhance the activity of the manufactured recombinant lectin.

Abstract: Provided are a test socket for a semiconductor device and a test device including the test socket. The test device includes a test socket including terminals arranged in a two-dimensional array and corresponding to terminals of the semiconductor device and a ground line extending along at least one row of two-dimensional array; and a substrate electrically connected to the test socket so as to transmit and receive a test signal. The test socket includes a ground line extending along at least one row of the two-dimensional array.

Abstract: A test socket is provided that includes a base material including an insulating elastic material and a conductive portion extending through the base material in a thickness direction of the base material, wherein the conductive portion includes a plurality of conductive particle structures arranged in the thickness direction of the base material, and each of the plurality of conductive particle structures includes a plurality of conductive particles having at least one insulating wire and/or at least one conductive wire extending from a surface of the conductive particle, bonded with a material having a functional group.

Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: A method of displaying a plurality of pages on a screen of a terminal is provided. The method includes detecting a user's gesture that requests movement of the plurality of pages, identifying a movement mode relating to the movement of the plurality of pages, and moving and displaying a first page displayed on the screen and a second page connected to the first page displayed on the screen according to the identified movement mode, wherein the movement mode is one of a discrete mode and a continuous mode.

Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: A method of displaying a plurality of pages on a screen of a terminal is provided. The method includes detecting a user's gesture that requests movement of the plurality of pages, identifying a movement mode relating to the movement of the plurality of pages, and moving and displaying a first page displayed on the screen and a second page connected to the first page displayed on the screen according to the identified movement mode, wherein the movement mode is one of a discrete mode and a continuous mode.

Abstract: A tray for aligning semiconductor packages, a test handler using the same, a method of aligning the semiconductor packages, and a test method using the same include a tray main body comprising a plurality of package pocket portions at which a plurality of semiconductor packages are individually received and an air position-aligning unit coupled to the tray main body. The air position-aligning unit applies air having a preset pressure to the semiconductor package received at the package pocket portion. The semiconductor package is aligned at the package pocket portion.

Abstract: An image forming apparatus and a control method for the same, which ensure acquisition of a high-quality image by controlling physical-states of toner on a developer roller based on sensed variation in states of internal components of a developer cartridge, and which enable sensing and determination of the lifespan of the developer cartridge, is provided. The control method for the image forming apparatus includes applying a current detection bias to a developer roller blade of a developer cartridge, detecting the magnitude of current of the developer roller blade when the current detection bias is applied to the developer roller blade, and variably controlling a developer cartridge bias to be applied to the developer cartridge for image formation based on the detected magnitude of current of the developer roller blade, so as to allow a target magnitude of constant current to flow through the developer roller blade during image formation.

Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: A test socket is provided that includes a base material including an insulating elastic material and a conductive portion extending through the base material in a thickness direction of the base material, wherein the conductive portion includes a plurality of conductive particle structures arranged in the thickness direction of the base material, and each of the plurality of conductive particle structures includes a plurality of conductive particles having at least one insulating wire and/or at least one conductive wire extending from a surface of the conductive particle, bonded with a material having a functional group.

Abstract: An electrophotographic image forming apparatus includes an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: Provided are a test socket for a semiconductor device and a test device including the test socket. The test device includes a test socket including terminals arranged in a two-dimensional array and corresponding to terminals of the semiconductor device and a ground line extending along at least one row of two-dimensional array; and a substrate electrically connected to the test socket so as to transmit and receive a test signal. The test socket includes a ground line extending along at least one row of the two-dimensional array.

Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.

Abstract: An electrophotographic image forming apparatus and a development cartridge are provided. The electrophotographic image forming apparatus includes a body including an opening, a photoreceptor cartridge attached to, or detached from, the body through the opening, a photoconductive drum and a mounting portion, a development cartridge attached to, or detached from, the mounting portion through the opening while the photoreceptor cartridge is mounted in the body, a development roller supplying toner to an electrostatic latent image formed on the photoconductive drum, a cover for opening or closing the opening, and a pressurizing unit fixing the development cartridge to the mounting portion by providing a pressing force to the development cartridge in a direction parallel to a center line connecting centers of the photoconductive drum and development roller while the opening is closed.