Abstract: The present disclosure relates to a microorganism producing L-tryptophan in which the microorganism is modified such that a protein having an L-tryptophan-exporting activity comprising the amino acid sequence of SEQ ID NO: 1 is expressed, and a method for producing L-tryptophan using the microorganism.

Abstract: Disclosed herein are a cooling device and method of controlling the same. Cooling device includes a plurality of refrigerant pipes including a polymer material and a power source configured to supply heating power for self-heating of the refrigerant pipes to the refrigerant pipes.

Abstract: Disclosed is a method of operating a terminal on which an application for an instant messaging service is installed, the method that displays a first user interface (UI) for switching an input mode in a chatting interface of a chatroom in which a user of the application is participating, based on whether the user is assigned an authority to emphasize a message in the chatroom, switches the input mode from a first mode which is a normal mode to a second mode for emphasizing a message, in response to a user input with respect to the first UI, emphasizes a message input in the second mode for a predetermined period in a predetermined manner, and cancels the emphasizing of the message input in the second mode, when the predetermined time elapses.

Abstract: A control system for construction machinery includes a first hydraulic pump, first and second actuators connected to the first hydraulic pump through first and second hydraulic lines respectively, first and second control valves installed in the first and second hydraulic lines respectively and configured to control operations of the first and second actuators, and a controller configured to adjust a spool displacement amount of the first control valve according to an amount of working oil to be supplied to the first actuator when the first actuator performs a single or multiple operation by self-load.

Abstract: The present invention relates to a folding apparatus for flexible material durability testing, the folding apparatus including: a material fixing part fixing a part of a flexible material to be tested; a pivoting plate spaced apart at a predetermined gap from the material fixing part, and folding or unfolding the flexible material by rotatively moving in a state where the other part of the flexible material is fixed thereon; and a motion controller supporting the pivoting plate to enforce the pivoting plate to rotatively move and to allow the pivoting plate to forwardly or backwardly move with respect to the material fixing part at the same time. In addition, because a miscellaneous force in addition to tensile force is not applied to the material during flexible material durability testing, the testing is highly reliable. Accordingly, the folding apparatus may accurately perform the flexible material durability testing.

Abstract: Disclosed is a method for removing factor XI (FXI) during plasma protein purification, more specifically a method for removing FXI including dialyzing and concentrating a plasma protein fraction II paste containing FXI and a plasma protein, and then removing the FXI using a ceramic-based cation exchange resin. The method for removing factor XI (FXI) can improve removal efficiency of impurities and thrombogenic substances, thereby producing stable plasma proteins with improved quality.

Abstract: A method for preparing a highly concentrated fibrinogen solution includes adding amino acid or amino acid derivatives, and/or salts to a lowly concentrated fibrinogen solution, followed by a ultra-filtration concentration. Factor XIII can be added either before or after the ultra-filtration to give a fibrin sealant component 1 containing the highly concentrated fibrinogen solution. The fibrin sealant component 1 could be preserved for a long time at room temperature and be used without a reconstitution. Fibrin sealant component 2 is a solution containing thrombin and calcium. A fibrin sealant product may be provided in a vial type in which the fibrin sealant components 1 and 2 are each filled in separate vials or in a re-filled syringe type wherein the fibrin sealant components 1 and 2 are each filled in separate syringes connected with each other to be instantly used.

Abstract: A rapid immunoassay method and apparatus for detecting foot and mouth disease virus are disclosed. The method and test device permit pen-side testing of animals and provide test results within a relatively short time period. In a preferred embodiment, the method and apparatus provide a means for differentiating between FMDV-infected and FMDV-vaccinated animals.

Abstract: A method for fabricating a semiconductor device, the method including forming a mold structure on a substrate such that the mold structure includes alternately and repeatedly stacked interlayer insulating films and sacrificial films; forming a channel hole passing through the mold structure; forming a vertical channel structure within the channel hole; exposing a surface of the interlayer insulating films by removing the sacrificial films; forming an aluminum oxide film along a surface of the interlayer insulating films; forming a continuous film on the aluminum oxide film; and nitriding the continuous film to form a TiN film.

Abstract: The present invention relates to a method for purifying an immunoglobulin, and more particularly, to a method for purifying an immunoglobulin, which comprises: dissolving immunoglobulin-containing plasma protein fraction I+II+III or fraction II+III; adding caprylate to the solution to cause precipitation; performing dialysis and concentration after removal of the precipitate; performing anion exchange resin and ceramic cation exchange resin purification processes to effectively remove a solvent and detergent added to inactivate viruses; and performing elution while maintaining salt concentration at a constant level to maintain the immunoglobulin polymer content at a low level.

Abstract: In a method of controlling a main control valve of an excavator, when speeds of a boom cylinder and an arm cylinder is increased by handling a boom joystick and an arm joystick, a second arm control spool between a first hydraulic pump and the arm cylinder may be closed. A first boom control spool between the first hydraulic pump and the boom cylinder may be opened to supply a first flux generated from the first hydraulic pump to the boom cylinder. A second boom control spool between a second hydraulic pump and the boom cylinder may be closed. A first arm control spool between the second hydraulic pump and the arm cylinder may be opened to supply a second flux generated from the second hydraulic pump to the arm cylinder.

Abstract: Disclosed is a user interface which enables mark based interaction for images. The present disclosure relates to a user interface which enables mark based interaction for images, the images comprising a volume which is a three-dimensional image and slices which are two-dimensional images, each of which represents a cross section of the volume. At least two of the images each include the same visual mark for identifying at least one common region of interest. The user interface comprises: an input unit for receiving a user input associated with the same visual mark included in one of the images; and at least one component for enabling the interaction for the images including the same visual mark associated with the user input.

Abstract: In a method of controlling a main control valve in construction machinery, a first joystick signal for controlling a first control valve device and/or a second joystick signal for controlling a second control valve device are received from one joystick. While one of the first and second control valve devices operates, whether or not a joystick signal for controlling another of the first and second control valve devices is inputted is determined. A weighted value is applied to a threshold of valve operation initiation with respect to a joystick displacement to determine a raised threshold of valve operation initiation. If the inputted joystick displacement satisfies the raised threshold of valve operation initiation, a valve stoke corresponding to the inputted joystick displacement is calculated and outputted.

Abstract: The present disclosure relates to a microorganism of the genus Escherichia producing more L-tryptophan by inactivating the activity of phosphatase. Additionally, the present disclosure relates to a method for producing L-tryptophan using the microorganism of the genus Escherichia.

Abstract: A red light emitting device, a method of fabricating a light emitting device, a light emitting device package, and a lighting system are provided. The red light emitting device may include a first semiconductor layer having a first conductivity, an active layer provided on the first semiconductor layer and including a quantum well and a quantum barrier, a second semiconductor layer having a second conductivity and provided on the active layer, a third semiconductor layer having the second conductivity on the second semiconductor layer, a fourth semiconductor layer having the second conductivity on the third semiconductor layer, and a fifth semiconductor layer having the second conductivity on the fourth semiconductor layer. The third semiconductor layer and the fourth semiconductor layer may include an AlGaInP-based semiconductor layer, and an Al composition of the fourth semiconductor layer may be lower than an Al composition of the third semiconductor layer.

Abstract: An adhesive film includes a cured product of a (meth)acrylic copolymer and has a refractive index from about 1.5 to about 1.6. An adhesive composition for preparing the adhesive film includes a (meth)acrylic copolymer of a monomer mixture. A display member includes the adhesive film coated on one or more surfaces of an optical film.

Abstract: A control system for construction machinery, includes a hydraulic pump, first and second actuators connected to the hydraulic pump through first and second parallel lines respectively, first and second control valves installed in the first and second parallel lines respectively and configured to control operations of the first and second actuators, first and second spool displacement adjusting valves configured to control displacement amounts of the spools of the first and second control valves, and a controller configured to output a control signal to the first and second spool displacement adjusting valves corresponding to a manipulation signal of an operator, and configured to limit a spool displacement amount of the second control valve according to the manipulation signal for the first actuator when the manipulation signal for a multiple operation of the first and second actuators is received.

Abstract: The present disclosure relates to a safety system for a construction machine, and the safety system for a construction machine according to the exemplary embodiment of the present disclosure includes: a pilot pump which supplies a pilot working fluid; multiple spools which are operated by the pilot working fluid to control a supply of a main working fluid and each have a signal unit formed in one region thereof; a signal line which sequentially connects the pilot pump and the signal units of the multiple spools and discharges the pilot working fluid, which is supplied by the pilot pump, to a hydraulic tank; and a pressure sensor which measures pressure in the signal line.

Abstract: A control system for construction machinery, includes a hydraulic pump, first and second actuators connected to the hydraulic pump through first and second parallel lines respectively, first and second control valves installed in the first and second parallel lines respectively and configured to control operations of the first and second actuators, first and second spool displacement adjusting valves configured to control displacement amounts of the spools of the first and second control valves, and a control valve control portion configured to output the control signal, and configured to limit a maximum allowable value of the manipulation signal for the first actuator to a value selected by the operator and limit a spool displacement amount of the second control valve according to the limited manipulation signal for the first actuator when the manipulation signal for a multiple operation of the first and second actuators is received.