Abstract: Disclosed is an electrospinning nozzle block, which includes an inner space for accommodating a spinning solution transferred and injected from a solution storage tank, a nozzle body including a plurality of solution distribution ports, an electrospinning nozzle including an airflow ejection unit, a nozzle adapter for detachably coupling the electrospinning nozzle to the nozzle body, and a high voltage applying unit for applying high voltage electricity from a high voltage generating device to the spinning solution accommodated in the inner space of the nozzle bod.

Abstract: Disclosed is an electrospinning nozzle including an air ejection unit, in which a plurality of air holes are formed in a circumferential region radially spaced at a certain distance from the hollow needle through which the spinning solution is discharged, and, by generating an air flow that moves straight toward a charged filament jet by a spinning solution by discharging air through the air hole, a filament jet is stably formed at the spinning nozzle tip by preventing the air flow from directly contacting the spinning solution, and the filament jet is controlled so as not to exceed a specific range.

Abstract: A semiconductor device includes a first peripheral circuit structure and a cell stack structure disposed on the first peripheral circuit structure and including electrode layers and inter-electrode insulating layers that are alternately and repeatedly stacked, the first peripheral circuit structure includes a first substrate, first peripheral transistors disposed on the first substrate, a first peripheral insulating layer covering the first substrate and the first peripheral transistors, and a first peripheral alignment key on the first peripheral insulating layer, and the first peripheral alignment key overlaps the cell stack structure.

Abstract: Disclosed is a nozzle block applied to an electrospinning device. At least one piercing unit (means of piercing) having a diameter smaller than the inner diameter of a spinning nozzle is coaxially disposed inside the spinning nozzle in order to prevent solidification of a solution at a tip of the spinning nozzle. The present disclosure includes a first cleaning mechanism for cleaning the spinning nozzle by reciprocating the piercing unit and the spinning nozzle relative to each other so that the tip of the spinning nozzle is unclogged, and a second cleaning mechanism for cleaning aggregates deposited around and outside the tip of the spinning nozzle through chemical cleaning and/or physical cleaning when the electrospinning process is temporarily stopped or after the electrospinning process is completed.

Abstract: An electrospinning apparatus for producing ultrafine fibers according to the present invention comprises: a cylindrical metal guide disposed to surround a hollow tube needle, which receives a charged solution and discharges the charged solution in the form of a filament, wherein a high voltage is applied to the cylindrical metal guide to control droplet stability of the charged solution; and a strip-shaped metal guide including a plurality of strip-shaped metal plates, which extend outward from the cylindrical metal guide and are radially arranged to control the direction of a charged filament, whereby discharge droplets of the charged solution are stably maintained, and the charged filament formed therefrom maintains a constant directionality with respect to a substrate, so that a uniform pattern having ultrafine fibers can be manufactured on a collection part.

Abstract: The present disclosure relates to a nozzle block applied to an electrospinning device, which includes a radiation nozzle having a hollow radiation needle for discharging a spinning solution to the outside; a means of piercing having a diameter smaller than that of the radiation needle, at least one of which is coaxially disposed inside the radiation needle; and a reciprocating mechanism for reciprocating the means of piercing and the radiation needle relative to each other, thereby preventing the solution from being solidified at the tip of the radiation nozzle or the radiation nozzle from being blocked by external contaminants even if the electrospinning process is temporarily interrupted in the middle.

Abstract: Disclosed is a coaxial control dual nozzle, which includes an inner nozzle body having an injection port through which a first fluid is injected; an inner needle connected to the inner nozzle body and having a hollow tube needle configured to provide a discharge port for the first fluid; an outer nozzle body assembled with the inner nozzle body and having an injection port through which a second fluid is injected; an outer needle connected to the outer nozzle body and disposed to surround the hollow tube needle provided to the inner needle, the outer needle having a hollow tube needle configured to provide a discharge port for the second fluid; an inner needle positioning unit configured to control a location of a central axis of the hollow tube needle provided to the inner needle; and an outer needle positioning unit configured to control a location of a central axis of the hollow tube needle provided to the outer needle.

Abstract: An electrospinning apparatus for producing ultrafine fibers according to the present invention comprises: a cylindrical metal guide disposed to surround a hollow tube needle, which receives a charged solution and discharges the charged solution in the form of a filament, wherein a high voltage is applied to the cylindrical metal guide to control droplet stability of the charged solution; and a strip-shaped metal guide including a plurality of strip-shaped metal plates, which extend outward from the cylindrical metal guide and are radially arranged to control the direction of a charged filament, whereby discharge droplets of the charged solution are stably maintained, and the charged filament formed therefrom maintains a constant directionality with respect to a substrate, so that a uniform pattern having ultrafine fibers can. be manufactured on a collection part.

Abstract: Disclosed is a coaxial control dual nozzle, which includes an inner nozzle body having an injection port through which a first fluid is injected; an inner needle connected to the inner nozzle body and having a hollow tube needle configured to provide a discharge port for the first fluid; an outer nozzle body assembled with the inner nozzle body and having an injection port through which a second fluid is injected; an outer needle connected to the outer nozzle body and disposed to surround the hollow tube needle provided to the inner needle, the outer needle having a hollow tube needle configured to provide a discharge port for the second fluid; an inner needle positioning unit configured to control a location of a central axis of the hollow tube needle provided to the inner needle; and an outer needle positioning unit configured to control a location of a central axis of the hollow tube needle provided to the outer needle.

Abstract: The present disclosure relates to a transmission (TM) mount that is capable of reducing costs and a weight by removing a separate stopper (component). The transmission (TM) mount improves handling performance taking advantage of elastic properties of a rubber component in a left/right direction (lateral direction). The stopper for a transmission (TM) mount includes a housing bracket into which an insulator is press-fitted, a lower plate which is positioned at a lower end of the insulator and connected, together with the housing bracket, to a vehicle body through a curling structure, an inner core which is disposed at a central portion of the insulator, and a bridge which is installed at a lower side of the inner core so as to control a lateral displacement. The bridge is tightly fixed to a fixing piece formed in the lower plate.

Abstract: The present disclosure relates to a transmission (TM) mount that is capable of reducing costs and a weight by removing a separate stopper (component). The transmission (TM) mount improves handling performance taking advantage of elastic properties of a rubber component in a left/right direction (lateral direction). The stopper for a transmission (TM) mount includes a housing bracket into which an insulator is press-fitted, a lower plate which is positioned at a lower end of the insulator and connected, together with the housing bracket, to a vehicle body through a curling structure, an inner core which is disposed at a central portion of the insulator, and a bridge which is installed at a lower side of the inner core so as to control a lateral displacement. The bridge is tightly fixed to a fixing piece formed in the lower plate.

Abstract: A structure for mounting an engine mount, may include bracket which is coupled to the engine mount, and may have at least one mounting hole; an insulator which may have a pipe shape having a center hole, includes a material having elasticity, and is fitted into the at least one mounting hole; and a fixing pipe which is fitted into the center hole, and mounted in the at least one mounting hole together with the insulator, in which a recessed portion having a partially cut out shape or a recessed shape is formed along a circumference of the insulator at a first side of the insulator.

Abstract: Disclosed are a method of manufacturing a non-slip plate and a non-slip plate manufactured thereby. The method includes preparing a base metal plate for joint design, washing and surface treatment, preparing a non-slip material, adhering the non-slip material to the bonding surface of the base metal plate to form a protrusion, and brazing the base metal plate having the non-slip material adhered thereto in a brazing furnace. The non-slip plate is applied to vehicles to impart non-slip performance thereto, and can be semi-permanently used.

Abstract: A structure for mounting an engine mount, may include bracket which is coupled to the engine mount, and may have at least one mounting hole; an insulator which may have a pipe shape having a center hole, includes a material having elasticity, and is fitted into the at least one mounting hole; and a fixing pipe which is fitted into the center hole, and mounted in the at least one mounting hole together with the insulator, in which a recessed portion having a partially cut out shape or a recessed shape is formed along a circumference of the insulator at a first side of the insulator.

Abstract: Disclosed are a method of manufacturing a non-slip plate and a non-slip plate manufactured thereby. The method includes preparing a base metal plate for joint design, washing and surface treatment, preparing a non-slip material, adhering the non-slip material to the bonding surface of the base metal plate to form a protrusion, and brazing the base metal plate having the non-slip material adhered thereto in a brazing furnace. The non-slip plate is applied to vehicles to impart non-slip performance thereto, and can be semi-permanently used.

Abstract: The invention relates to a novel strain, Lactobacillus fermentum strain, and a use thereof. Specifically, novel Lactobacillus fermentum PL9988, novel Lactobacillus fermentum PL9037, novel Lactobacillus fermentum PL9038, novel Lactobacillus fermentum PL9039 and novel Lactobacillus fermentum PL9040 strains, isolated from adults in a longevity village, and culture fluids thereof: have no antibiotic resistance transfer; have excellent intestinal cell adhesiveness, acid resistance and bile resistance; inhibit harmful pathogenic organisms in intestines; and have an immunity-enhancing effect, an endotoxin shock suppression effect and an antioxidant effect. In particular, Lactobacillus fermentum PL9988 strain significantly satisfies all of the above-mentioned conditions as a probiotic, and thus can be effectively used as a probiotic for intestinal health and defecation improvement and enhancement, or as a health food.

Abstract: A method of performing collective communication in a collective communication system includes processing nodes, including: determining whether a command message, regarding one function among a broadcast function, a scatter function, and a gather function, is generated by a processor; determining a transmission order between the processing nodes by giving transmission priorities to processing nodes that do not communicate, based on a status of each of the processing nodes if it is determined that the command message regarding the one function among the broadcast function, the scatter function, and the gather function, is generated by the processor; and performing communication with respect to the command message based on the determined transmission order.

Abstract: A hydro roll rod that includes a first liquid chamber and a second liquid chamber formed in a rear insulator and configured to provide a space in which a fluid is stored. A rod case is extended toward an outside from a portion where the first liquid chamber and the second liquid chamber are partitioned and configured to support a load. A first bridge encloses an outer circumference of the second liquid chamber and coupled to one side surface of the rod case. A second bridge encloses an outer circumference of the first liquid chamber and coupled to one side surface of the rod case. A plate is fixedly coupled to an end of the second liquid chamber. A first bracket encloses and supports outer circumferences of the first bridge and the plate, and a second bracket encloses and supports an outer circumference of the second bridge.

Abstract: A method of performing collective communication in a collective communication system includes processing nodes, including: determining whether a command message, regarding one function among a broadcast function, a scatter function, and a gather function, is generated by a processor; determining a transmission order between the processing nodes by giving transmission priorities to processing nodes that do not communicate, based on a status of each of the processing nodes if it is determined that the command message regarding the one function among the broadcast function, the scatter function, and the gather function, is generated by the processor; and performing communication with respect to the command message based on the determined transmission order.

Abstract: An air damping mount includes: a housing in which a space is formed and an upper part of which is shielded by a cover; an insulator embedded in the housing forming first and second chambers at a lower and upper parts, respectively, and elastically deformed in accordance to the load applied thereto; and a core coupled to the insulator embedded in the housing and coupled to an engine through a hanger bracket protruding externally to a side direction of the housing wherein a first air hole is punched for air to enter into and exit from the first chamber and a second air hole is punched for air to enter into and exit from the second chamber. The chambers which air enter into and exit from are formed at an upper part and a lower part of the housing to improve noise, vibration and harshness (NVH).